text:
Q: Get requested page  inside ajax call on some web page I'm using Nokogiri, at this moment, I have variable which contains code of some page: doc = Nokogiri::HTML(open(page)). There is script in code, ajax calls:
<script type="text/javascript" charset="utf-8">
      $(document).ready(function(){
        $("#menu").kendoMenu();
        $('.menu_item').on('click', function (e){
          $.ajax({
            url: '/movie/101299-the-hunger-games-catching-fire/images?kind=backdrop&language=' + $(this).attr('alt') + '&translate=false',
            cache: false
          }).done(function(response) {
            $('#image_panel').html(response);
          });
        });

        $.ajax({
          url: '/movie/101299-the-hunger-games-catching-fire/images?kind=backdrop&language=&translate=false', //goal
          cache: false
        }).done(function(response) {
          $('#image_panel').html(response);
        });
      });
</script>

There is some way to get second request url, and place it to the variable, I need to go to this url. Unfortunately I didn't find something about it, maybe phantomjs can help me?

A: I think you will to manually parse the script element. You can do this by using Nokogiri to get the text of the script element. Then use a regexp to find the last url:
Assuming the script is the first on the page, you can do:
url = doc.at_css('script').text.scan(/url: '(.*)'/).last.first

The following breaks the script down to provide explanation of each step:
# Get the text of the script element
# Note that this assumes it is the first script element (you may need to be more specific)
script = doc.at_css('script').text

# Find all urls in the script
urls = script.scan(/url: '(.*)'/)

# Of the urls found, take the last one
url = urls.last

# url is actually an array of length 1, since we used a matching group in the regex
# Take the first element of the array to get the url as a string
url = url.first
#=> "/movie/101299-the-hunger-games-catching-fire/images?kind=backdrop&language=&translate=false"


Budapest was a gem. Honestly, I didn't expect it. My husband had a long weekend at work and we were trying pick somewhere to go. Since we have both lived in Europe at separate times, we've got most of the "big" spots (you know, Paris, Madrid, London, Dublin, etc.) covered between the two of us….


text:
Dave Splash Dot Com
Taking Sports Fandom To a New Level
I am a Green Bay Packers fan. They became my team after I lived in Wisconsin. I have a theory that the Pack will make it to the Superbowl this year, beat New England and ruin their perfect season, and then Brett Favre can retire on top. Dare to dream, right? Well, guess I'm not as much of a fan as this guy...
PORTAGE, Wis. (AP) — Upset that his 7-year-old son wouldn't wear a Green Bay Packers jersey during the team's playoff victory Saturday, a man restrained the boy for an hour with tape and taped the jersey onto him.
Mathew Kowald was cited for disorderly conduct in connection with the incident with his son at their home in Pardeeville, Lt. Wayne Smith of the Columbia County Sheriff's Department said. Pardeeville is about 30 miles north of Madison.
The 36-year-old Kowald was arrested Monday after his wife told authorities about the incident. Kowald was taken to the county jail and held until Wednesday, when he pleaded no contest, paid a fine of $186 and was released.
Kowald's wife filed a restraining order Wednesday, so Kowald will not be able to have contact with his family, Smith said. Smith said other domestic issues have surfaced, though he wouldn't elaborate.
The boy refused to wear the jersey Saturday, when the Packers beat the Seattle Seahawks in a playoff game, Smith said. Smith said the incident sounded strange when reported at first, but the mother took pictures with her cell phone and that type of evidence is difficult to dispute.
Kowald, contacted later Wednesday by the Portage Daily Register, said the incident started as a joke. His son challenged him by saying he wouldn't root for the Packers. When he tied the boy up, the youngster was laughing while his wife took pictures, he said.
"Then he couldn't get out and he got upset and that's it. It lasted a minute," he said. "I didn't mean no harm, and he knows that, but I haven't been able to tell him that."
District Attorney Jane Kohlwey said there wasn't enough evidence to support felony charges.
"I wouldn't agree with what he did, but legally a parent can restrain a child," she said. "I have no proof of emotional damage. ... I have to follow the law.
Posted by Dave Splash
Labels: Football
J. Marquis said...
Go Pack! With Favre at the helm, you really have to say they should be called America's Team.
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redpajama_set_name: RedPajamaCommonCrawl


text:
British Royals 2nd July 2019
Wales Week 2019: Charles returns to his principality on a very special date
Lydia Starbuck
Desk Editor
A 'bridie' for Sophie: Forfar's new countess gets a traditional welcome
Exploring Royal Scotland: The Royal Yacht Britannia
ClarenceHouse/Twitter
We know that Wales Week is always a treasured time for Charles and Camilla but this year it took on an extra significance. The Prince of Wales began his annual tour on a date filled with significance. Charles was back in his principality exactly half a century after his investiture with the ancient title reserved, for centuries, for the heir to the throne.
And the anniversary turned out to be a packed one. The prince began Wales Week with a solemn ceremony at Llandaff Cathedral in Cardiff. Prince Charles attended a regimental memorial service at the church for The Queen's Dragoon Guards. The Regimental Memorial was dedicated during the ceremony and the prince then laid a wreath at it. Charles became Colonel-in-Chief of the The Queen's Dragoon Guards in 2003.
One of the heir to the throne's outstanding achievements in the fifty years since his formal investiture has been the Prince's Trust which has helped millions of young people get their lives back on track since its inception in 1976. On his special anniversary, Charles headed to one of the Trust's call centres based in Swansea where he met many of the advisors offering support via phone and webchats to the thousands who call every month.
He also met some of those who have been helped by the Trust including Mari Thomas who received help from the organisation over twenty years ago when she decided to set up her own jewellery firm. She presented Charles with a gift crafted herself – a pair of cufflinks engraved with the words of a poem by Waldo Williams called 'Cofio', or 'Remember', a nod to the anniversary the prince was marking.
And these are THE cufflinks which I presented to HRH Prince Charles. Oxidised Cofio cufflinks hand etched with the poem Cofio (Remember) by Waldo Williams to commemorate 50 years since his investiture as the Prince of Wales. @clarencehouse @princes_trust_cymru @princestrust pic.twitter.com/ijJ02ecXdF
— Mari Thomas (@MariTJewellery) July 1, 2019
And as it was a special day, there was a cake. The Prince of Wales did the honours and cut the confection before struggling to get the first slice free.
From there, it was off into the great outdoors with a trip to Ty'n-y-Coed Forest to meet horse loggers. Charles heard about their work in the area and the efforts being made to promote horse logging as a sustainable option in modern forestry. He's been patron of the British Horse Loggers since 2004. The royal visitor also handed over the Prince of Wales Trophy to the winner of the Woodland Management Award.
The Duchess of Cornwall will join her husband as day two of Wales Week gets under way. Charles and Camilla will be based at Llwynywermod, their home in Wales, where they will host a special evening of music and drama on the second night of this year's visit. And no doubt there will be many more reminders of the special anniversary that co-incides with the event, a chance to remember again fifty years of service by the Prince of Wales.
Related Itemsduchess of cornwallPrince of Waleswales week
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Brittani Barger18th July 2019


FIFA 19 title version 1.08 is now live on PS4 (having released on PC as title update 7 last week), bringing a number of changes to the game's precision shooting mechanics.
Digital now accounts for 80% of video game sales in the UK, according to recent figures. But physical remains integral to the success of the biggest titles.
FIFA 19 title update 3 is available to download right now on PS4, Xbox One, Nintendo Switch, and PC. It's a rather substantial one, too.
FIFA 19 physical sales are down 25% compared to last year, but it's still 2018's best-selling video game (in the UK). Full details inside.
PlayStation Store Down: PSN Store Affected By FIFA 19 Demo?
The FIFA 19 official demo will release in the next few days, publisher EA Sports has confirmed. Read inside for full details.


At its board meeting on July 10, the Toronto Transit Commission finally approved two hour transfers for passengers paying by Presto. This is great news that has been a long time coming.
The TTC expects that the new policy will cost $21 million a year by 2020, but it will also boost ridership by 5 million passengers. The new two-hour transfer policy will allow a passenger using a Presto card to board any vehicle or enter any subway station within two hours of the first tap without paying a second fare. This will allow anyone to make a short return trip on one fare, or make a stopover before transferring to another route. Customers of most suburban transit systems such as MiWay, Brampton Transit, and YRT have enjoyed the same privileges for over a decade.
The policy takes effect Sunday, August 26.
I've argued here before why two-hour transfers are necessary. If a passenger taps onto another vehicle on the same route, a common occurrence due to delays, short-turns, and diversions/shuttles, the Presto Card will deduct a second fare. That has happened to me several times, even when making a valid transfer between a bus and Union subway station. It's often confusing when the TTC tells its passengers to take a paper transfer when a diversion takes place, or tells its customers not to tap again on a bus or streetcar when they're short-turned. The new policy finally fixes those errors for good.
However, the transfer policy does not apply to customers paying by cash, tickets, or tokens, so the old archaic paper transfer rules will still apply to many TTC customers.
The TTC is slowly phasing out paper media and passes, but still has yet to implement daily, weekly or monthly caps that will effectively replace day, weekly and Metropasses. There will also need to be a paper Presto card equivalent developed for occasional and one-time customers, such as tourists or anyone who doesn't want to pay the $6 fee for a plastic card. Hopefully the details of how these will be implemented will be decided and communicated in the near future.
This entry was posted in Toronto, Transit and tagged Presto, Toronto, Transfers, TTC. Bookmark the permalink.
About bloody time TTC. Calgary Transit has had timed transfers for … well, as long as I remember, but only for 90 minutes. If one can do a round-trip in that time, all the power to them. The simplicity factor is huge for customers, and the reduction in administration should also help a bit on the bottom line. Realistically, all transit systems should be implementing this across the board.
Be careful what you write. I dot think that was the planning purpose of the 2 hr transfer by any transit system. Pick up something on your way / pick up a kid etc/ wait for someone etc. as part of the transfer on your route YES.
I disagree. On my copy of the 2005 Brampton Transit map – the year the route structure was changed significantly – there was a note about the new 2-hour transfer introduced, which touted the short return trip on one fare as a benefit. The TTC itself comments on the new ability to complete quick errands without paying an additional fare.
I suspect that few riders will make a return trip on a single fare (I rarely took advantage of it when I lived in the 905), but there's no way to prevent it with an unrestricted two hour fare, anyway, so why not tout it as a benefit?
Hi Sean, I really want the TTC along with other GTHA transit agencies such as Oakville Transit, MiWay Mississauga Transit, Brampton Transit, YRT/VIVA, Durham Regional Transit to fully eliminate all cash fare payments on-board all surface vehicles and routes across these networks entirely sometime in the future as part of the phase out of legacy fare media, its safer for drivers, safer for passengers, cuts down on distractions, fare disputes, cuts down on those assaults to transit drivers and can facilitate all-door boarding with random POP compliance checks with the addition of PRESTO fare card readers at the centre and rear doors as well. Transit drivers should no longer be responsible for handling or monitor cash fares anymore or giving out transfers they should just be drivers, solely focusing on the task of driving the vehicle and the roads (like they already do on the new TTC streetcars), only enforcement officers should do those random spot checks for POP what do you think Sean? I really want to see this happen sometime in the future. Let's say this altogether, "NO MORE CASH ON THE BUS", "NO MORE CASH ON THE STREETCAR", only PRESTO should be accepted as a method of payment for all transit vehicles. Cash should only be accepted at various automated vending machines such as at TTC subway stations, or from various retail stores or transit centres in the GTHA where riders can buy a paper Presto card equivalent for occasional and one-time customers, such as tourists or anyone who doesn't want to pay the $6 fee for a plastic card.


text:
var gulp = require('gulp');
var jshint = require('gulp-jshint');
var uglify = require('gulp-uglify');
var cssnano = require('gulp-cssnano');
var htmlify = require('gulp-angular-htmlify');
var concat = require('gulp-concat');
var watch = require('gulp-watch');
var gulpif = require('gulp-if');
var useref = require('gulp-useref')
var rename = require('gulp-rename');
var inject = require('gulp-inject');
var connect = require('gulp-connect');
var open = require('gulp-open');
var util = require('gulp-util');
var os = require('os');
var angularFilesort = require('gulp-angular-filesort');
var wiredep = require('wiredep').stream;
var browser = os.platform() === 'linux' ? 'google-chrome' : (
    os.platform() === 'darwin' ? 'google chrome' : (
        os.platform() === 'win32' ? 'chrome' : 'firefox'));

//Development Stuffs for live reloading
gulp.task('server', function() {
    connect.server({
        root: ['.', '.tmp'],
        livereload: true,
        port: 9015

    })
});

gulp.task('runbuild', function() {
    connect.server({
        root: ['www'],
        livereload: true,
        port: 9015

    })
});

gulp.task('open', function() {
    var options = {
        uri: 'http://localhost:9015/#/',
        app: browser
    };
    gulp.src('')
        .pipe(open(options));
});

gulp.task('livereload', function() {
    setTimeout(function() {
        gulp.src('.tmp/')
            .pipe(connect.reload());

    }, 650)

});
gulp.task('css', function() {
    gulp.src('app/styles/*.css')
        .pipe(gulp.dest('.tmp/styles'))
});

gulp.task('js', function() {
    gulp.src('app/scripts/**/*.js')
        .pipe(gulp.dest('.tmp/scripts'))
});

gulp.task('html', function() {
    gulp.src('app/views/*.html')
        .pipe(gulp.dest('.tmp/views'))
})

gulp.task('images', function() {
    gulp.src('app/images/*.{png,jpg}')
        .pipe(gulp.dest('.tmp/images'))
})

gulp.task('watch', function() {
    watch('app/views/*.html', function() {
        gulp.start('html')
        gulp.start('livereload')
    });
    watch('app/styles/*.css', function() {
        gulp.start('inject')
        gulp.start('css')
        gulp.start('livereload')
    });
    watch('app/scripts/**/*.js', function() {
        gulp.start('inject')
        gulp.start('js')
        gulp.start('livereload')
    });
    watch('app/images/**/*.{png,jpg}', function() {
        gulp.start('images')
        gulp.start('livereload')
    });
    watch('app/index.html', function() {
        gulp.start('inject')
        gulp.start('livereload')
    });
});

gulp.task('inject', function() {
    var injectStyles = gulp.src(['.tmp/styles/*.css'], { read: false });
    var injectScripts = gulp.src([
        // selects all js files from .tmp dir
        '.tmp/scripts/**/*.js',
        // but ignores test files
        '!.tmp/scripts/**/*.test.js'
        // then uses the gulp-angular-filesort plugin
        // to order the file injection
    ]).pipe(angularFilesort()
        .on('error', util.log));
    // tell wiredep where your bower_components are
    var wiredepOptions = {
        directory: 'bower_components'
    };
    return gulp.src('app/index.html')
        .pipe(inject(injectStyles, { relative: true }))
        .pipe(inject(injectScripts, { relative: true }))
        .pipe(wiredep(wiredepOptions))
        .pipe(gulp.dest('.tmp'));

});

gulp.task('jshint', function() {
    return gulp.src('app/scripts/**/*.js')
        .pipe(jshint())
        .pipe(jshint.reporter('default'));
});

gulp.task('useref', function() {
    var injectStyles = gulp.src(['app/styles/*.css'], { read: false, relative: true });
    var injectScripts = gulp.src(['app/scripts/**/*.js'], { relative: true }).pipe(angularFilesort().on('error', util.log));
    // tell wiredep where your bower_components are
    var wiredepOptions = {
        directory: 'bower_components'
    };
    return gulp.src('app/**/*.html')
        .pipe(inject(injectStyles, { relative: true }))
        .pipe(inject(injectScripts, { relative: true }))
        .pipe(wiredep(wiredepOptions))
        .pipe(useref())
        .pipe(gulpif('*.js', uglify({ mangle: false })))
        .pipe(gulpif('*.css', cssnano()))
        // .pipe(gulpif('*.png', cssnano()))
        .pipe(gulp.dest('www'))
});

gulp.task('buildImages', function() {
    gulp.src('app/images/*.{png,jpg}')
        .pipe(gulp.dest('www/images'))
});

//This task should be to run in development mode
gulp.task('default', ['jshint', 'js', 'css', 'html', 'images', 'inject', 'server', 'open', 'watch']);

//Need a task to return uglifed Concatenated Code
gulp.task('build', ['jshint', 'useref', 'buildImages'])

redpajama_set_name: RedPajamaGithub


text:
Integrated wireless linear motor
A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
Tamai, Hirofumi (Osaka-Fu, JP)
TAMAI HIROFUMI
310/12.19
H02K41/03; (IPC1-7): H02K41/00
20080116770 Drive circuits May, 2008 Lewis
20080157636 Human power generation using dual pulls July, 2008 Bulthaup et al.
20100019615 COMMUTATOR FOR AN ELECTRICAL MACHINE January, 2010 Pierson et al.
20020167243 Stator bobbins for axial winding November, 2002 Horng et al.
20060244328 Brush motor having coreless assembly November, 2006 Guo et al.
20080185926 Self-Disengaging Fan For an Elecromagnetic Retarder August, 2008 Dessirier et al.
20090224633 ELECTRICAL TO MECHANICAL ENERGY CONVERTER September, 2009 Clingman et al.
20090184589 ACOUSTIC EXCITER AND SPEAKER USING IT July, 2009 Yamagishi
20070180685 Method for producing a winding support for an electrical machine August, 2007 Mahfoudh
20080197731 Brushless motor and pump mounted with brushless motor August, 2008 Kusano
20040136847 Motor-driven pump unit July, 2004 Arbogast et al.
PRESTON, ERIK D
DOWELL & DOWELL, P.C. (2560 HUNTINGTON AVE, SUITE 406, ALEXANDRIA, VA, 22303, US)
1. A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
2. The wireless linear motor of claim 1 wherein the stator is incorporated in the frame.
3. The wireless linear motor of claim 1 wherein a linear recess is defined in the stage portion for receiving the frame portion.
4. The wireless linear motor of claim 1 and further comprising position sensors coupled to the controller for providing position signals for the stage to the external system for generating the control signals.
5. The wireless linear motor of claim 1 and further comprising magnetic sensors mounted on the stage and coupled to the controller for providing magnetic pole signals indicative of the location of the stage relative to the permanent magnets of the stator.
6. The wireless linear motor of claim 5 wherein the magnetic sensors are Hall Effect sensors.
7. The wireless linear motor of claim 1 and further comprising a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
8. A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second magnetically permeable linear guides for slideably mounting the stage over the stator to form a magnetic circuit linking the frame and stage, wherein each linear guide has a stage portion attached to the stage and wound with a stage coil, a frame portion attached to the frame and wound with a frame coil, a plurality of ball bearings disposed between and magnetically coupling the stage and frame portions, electric conductors coupling the frame coil to an external power supply for generating a magnetic flux in the frame portion, and electric conductors coupling the stage coil to the controller for providing electrical power induced in the stage coil by the magnetic flux.
10. The wireless linear motor of claim 8 wherein a linear recess is defined in the stage portion for receiving the frame portion.
11. The wireless linear motor of claim 8 and further comprising position sensors coupled to the controller for providing position signals for the stage to the external system for generating the control signals.
12. The wireless linear motor of claim 8 and further comprising magnetic sensors mounted on the stage and coupled to the controller for providing magnetic pole signals indicative of the location of the stage relative to the permanent magnets of the stator.
13. The wireless linear motor of claim 12 wherein the magnetic sensors are Hall Effect sensors.
14. The wireless linear motor of claim 8 and further comprising a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
15. A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, a brush mounted on the stage portion and contacting the frame portion, and a conductor coupling the brush to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
16. The wireless linear motor of claim 15 wherein the stator is incorporated in the frame.
17. The wireless linear motor of claim 15 wherein a linear recess is defined in the stage portion for receiving the frame portion.
18. The wireless linear motor of claim 15 and further comprising position sensors coupled to the controller for providing position signals for the stage to the external system for generating the control signals.
19. The wireless linear motor of claim 15 and further comprising magnetic sensors mounted on the stage and coupled to the controller for providing magnetic pole signals indicative of the location of the stage relative to the permanent magnets of the stator.
21. The wireless linear motor of claim 15 and further comprising a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
22. The wireless linear motor of claim 15 wherein the brush is spring mounted on the stage.
23. A power supply circuit for a linear motor, the motor having a stationary stator including permanent magnets, a movable stage including coils and a controller for communicating with an external data processing system and adapted to energize the coils to position the movable stage over the stationary stator in response to control signals from the external system, the circuit comprising: first and second electrically conductive linear guides mounted on a frame and for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
24. The power supply circuit of claim 23 and further comprising a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
25. A power supply circuit for a linear motor, the motor having a stationary stator including permanent magnets, a movable stage including coils and a controller for communicating with an external data processing system and adapted to energize the coils to position the movable stage over the stationary stator in response to control signals from the external system, the circuit comprising: first and second magnetically permeable linear guides mounted on a frame and for slideably mounting the stage over the stator to form a magnetic circuit linking the frame and stage, wherein each linear guide has a stage portion attached to the stage and wound with a stage coil, a frame portion attached to the frame and wound with a frame coil, a plurality of ball bearings disposed between and magnetically coupling the stage and frame portions, electric conductors coupling the frame coil to an external power supply for generating a magnetic flux in the frame portion, and electric conductors coupling the stage coil to the controller for providing electrical power induced in the stage coil by the magnetic flux.
27. A power supply circuit for a linear motor, the motor having a stationary stator including permanent magnets, a movable stage including coils and a controller for communicating with an external data processing system and adapted to energize the coils to position the movable stage over the stationary stator in response to control signals from the external system, the circuit comprising: first and second electrically conductive linear guides mounted on a frame and for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, a brush mounted on the stage portion and contacting the frame portion, and a conductor coupling the brush to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
28. The power supply circuit of claim 27 wherein the brush is spring mounted on the stage.
[0001] This application claims priority from Canadian Patent Application No. 2,422,341, filed Mar. 17, 2003, and incorporated herein by reference.
[0002] The invention relates to the field of linear motors, and more specifically to linear motors without power or control wiring between stator and movable stage.
[0003] Linear motors having stationary armatures containing coils and movable stages containing magnets are well known in the art. Also known are linear motors having stationary magnets and moving coils. One type of such linear motors is disclosed in U.S. Pat. No. 4,749,921 to Chitayat. The linear motor disclosed in this patent has a series of armature windings mounted to a base plate and a stage having a series of magnets that is free to move on the base plate. The stage is urged in the desired direction by applying AC or DC excitation to the coils. When such a linear motor is used in a positioning system, the relationship between the location of the stage and locations of the coils must be accounted for. In another linear motor, commutator contacts are pendant from the stage. The contacts contact one or more power rails, and one or more coil contacts. As the stage moves along the armature, the location of the stage, relative to the armature is automatically accounted for by applying power to the stationary armature windings through the commutator contacts. In yet other linear motors, it is conventional to employ a service loop of wires between the moving stage and the stationary elements.
[0004] Typically, the location of the stage is updated using a magnetic or optical position encoder on the stage which senses markings on an encoder tape stationary alongside the path of the stage. The location is transferred by the service loop to a stationary motor controller. Generally, the important location information is the phase of the stage relative to the phase of the armature. For example, in a three-phase armature, the windings are disposed in repeating sets of three for phases U, V and W. If the center of the U phase winding is arbitrarily defined as 0 degrees, then the centers of the V and W windings are defined as 120 and 240 degrees. There may be two, three or more sets of windings as required for the travel distance of the stage. Normally, all U phase windings are connected in parallel. The same is true of all V and W phase windings. Thus, when the location of the stage requires a certain voltage configuration on the particular windings within the influence of the magnets on the stage, besides powering these windings, all of the other windings in the armature are also powered. The maximum force obtainable from a linear motor is limited by the allowable temperature rise in the armature windings. When all windings are powered, whether they contribute to motor force or not, more armature heating occurs than is strictly necessary for performing the motor functions. Some linear motors in the prior art have responded to this heating problem using switches that are closed only to the armature windings actually within the influence of the magnets.
[0005] For reference, FIG. 1 is a side view of a linear motor 100 in accordance with the prior art. The linear motor 100 includes a stage (or mover) 110 and a stator 120. The stage (here, the armature) 110 includes coils 130 and the stator (here, the field) 120 includes magnets 140. The linear motor 100 is controlled by an external driver/controller 150 that is connected to the linear motor 100 by umbilical wires 190. The umbilical wires 190 include: three wires for U, V, and W signals 160 from the stage 110; five wires for power, ground, and U, V and W signals from the Hall Effect sensor 170; and, five wires for power, ground, and A, B and Z signals from the position sensor 180 on the stage 110. The Hall Effect sensor 170 is used for detecting magnetic poles for commutation purposes.
[0006] Now, linear motors are increasingly being employed in manufacturing equipment. In such equipment, nominal increases in the speed of operation translate into significant savings in the cost of production. It is particularly desirable to produce as much force and acceleration as possible in a given linear motor. An increase in force generated requires either an increase in magnetic field intensity or an increase in current applied to coils of the armature. In a permanent magnet linear motor, the available magnetic field intensity is limited by the field strength of available motor magnets. Power dissipated in the coils increases at a rate equal the square of the current. Attendant heat generation limits the force that may be achieved without exceeding the maximum armature temperature. Therefore, improvements in the power dissipation capacity of linear motors provide for increases in their utility.
[0007] In typical manufacturing equipment, a linear motor may be employed for driving a positioning table along an axis. For example, positioning tables are commonly used for moving a work object such as an electronic device in a precise path for performing an operation or inspection on the work object. Desirable characteristics of such positioning tables include precision, compactness, the maximum speed at which the table can be driven and the accuracy with which the table may be positioned. U.S. Pat. No. 4,151,447 to von der Heide, et al., discloses a linear DC motor having rows of pairs of vertically standing permanent magnets between which flat coils are arranged to travel. The polarity of DC power to the flat coils is switched by a magnetic field or electro-optical sensor at predetermined points in the travel of the flat coils. The apparatus in this patent employs trailing cables for feeding power to the coils.
[0008] U.S. Pat. No. 4,761,573 to Chitayat discloses a linear DC motor suitable for driving a positioning table. This linear DC motor includes a linear toothed structure including coils wound around the individual teeth to form a repeating line pattern of electrically produced magnetic poles facing a corresponding parallel array of magnets arranged with alternating magnetic polarity having their broad faces closest to the toothed assembly. A brush assembly is provided on the movable element for contacting a linear slip ring assembly on the stationary element for switching the polarity of voltage applied to energizing coils of the motor. Linear power pickup rails are used in conjunction with brushes and linear slip rings for feeding and controlling power to energizing coils. Furthermore, a brush and power pickup brush assembly is disclosed for feeding first and second electrical polarities to energizing coils which employs two identical comb-like structures for both picking up power from linear power pickup rails and for feeding power to the coils through a linear slip ring.
[0009] Another brush and rail power pick-up arrangement is disclosed in U.S. Pat. No. 4,789,815 to Kobayashi, et al. This patent discloses a movable stage having control and driver means for supplying electric power to coils in the movable stage. The electric power is delivered to the control and driver means through brushes which make contact with rails mounted on the frame. The direction and position of the movable stage are controlled through the supply of power to the rails (i.e. on, off, and polarity). The linear motor thus disclosed is directed toward the control of curtains in vehicles.
[0010] Thus, there is a growing commercial use of high performance, linear motors in various manufacturing and other applications. One recognized disadvantage of prior art linear motors is the cumbersome umbilical wires that connect the moving armature or stage to the controller and power source. For example, the umbilical for a prior art three-phase, brushless motor may have three power lines, five signal lines for the armature commutating signals, and eight signal lines for armature position signals. The need for a cable loop connecting moving and stationary elements is inconvenient and limits the flexibility with which a system can be designed. The wiring harness requires additional clearance from the linear motor to prevent entanglement between the motor and any equipment or items that may be adjacent to the linear motor path. In addition, the wiring harness adds additional weight to the moving element of the linear motor. Furthermore, manufacturing of a linear motor employing a wiring harness incurs additional cost of material and assembly labour. Therefore, it would be desirable to eliminate the use of a wiring harness in a linear motor to decrease the cost of assembly, decrease the overall weight of the moving element, and to eliminate the clearance restrictions on the linear motor's utility. Another recognized disadvantage is the need to remove heat from the moving stage (i.e. armature). Where a coolant is used, the umbilical includes, in addition to the wires, a tube to carry the coolant to a coolant coil embedded in the armature and a tube to carry the coolant from the coil. The result is a heavy, cumbersome, umbilical of wires and tubes, festooned along the path over which the stage moves.
[0011] To overcome some of these disadvantages, wireless or semi-wireless linear motors have been developed and have been disclosed, for example, in U.S. Pat. Nos. 5,936,319 to Chitayat and 6,005,310 to Mosciatti, et al. U.S. Pat. No. 5,936,319 discloses a communications device on a movable stage which wirelessly informs a motor controller about the position and/or incremental motion of the movable stage. The movable stage includes a position encoder and any wireless transmission system may be used including radio and infrared. However, the movable stage includes permanent magnets while the fixed path includes armature coils. U.S. Pat. No. 6,005,310 discloses a movable stage with a wireless transmitter (e.g. radio frequency or infrared) for transmitting commutating and position signals to an external motor controller. However, while the movable stage includes coils, the motor controller is connected to the movable stage by an umbilical cord.
[0012] A need therefore exists for an improved wireless linear motor which overcomes at least some of the drawbacks of the prior art. Accordingly, it is an object of the present invention to provide such a linear motor.
[0013] According to one aspect of the invention, there is provided a wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
[0014] Preferably, the stator is incorporated in the frame. Preferably, a linear recess is defined in the stage portion for receiving the frame portion. Preferably, the wireless linear motor further includes position sensors coupled to the controller for providing position signals for the stage to the external system for generating the control signals. Preferably, the wireless linear motor further includes magnetic sensors mounted on the stage and coupled to the controller for providing magnetic pole signals indicative of the location of the stage relative to the permanent magnets of the stator. Preferably, the magnetic sensors are Hall Effect sensors. Preferably, the wireless linear motor further includes a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
[0015] According to another aspect of the invention, there is provided a wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second magnetically permeable linear guides for slideably mounting the stage over the stator to form a magnetic circuit linking the frame and stage, wherein each linear guide has a stage portion attached to the stage and wound with a stage coil, a frame portion attached to the frame and wound with a frame coil, a plurality of ball bearings disposed between and magnetically coupling the stage and frame portions, electric conductors coupling the frame coil to an external power supply for generating a magnetic flux in the frame portion, and electric conductors coupling the stage coil to the controller for providing electrical power induced in the stage coil by the magnetic flux.
[0017] According to another aspect of the invention, there is provided a wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, a brush mounted on the stage portion and contacting the frame portion, and a conductor coupling the brush to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
[0018] Preferably, the stator is incorporated in the frame. Preferably, a linear recess is defined in the stage portion for receiving the frame portion. Preferably, the wireless linear motor further includes position sensors coupled to the controller for providing position signals for the stage to the external system for generating the control signals. Preferably, the wireless linear motor further includes magnetic sensors mounted on the stage and coupled to the controller for providing magnetic pole signals indicative of the location of the stage relative to the permanent magnets of the stator. Preferably, the magnetic sensors are Hall Effect sensors. Preferably, the wireless linear motor further includes a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller. Preferably, the brush is spring mounted on the stage.
[0019] According to another aspect of the invention, there is provided a power supply circuit for a linear motor, the motor having a stationary stator including permanent magnets, a movable stage including coils and a controller for communicating with an external data processing system and adapted to energize the coils to position the movable stage over the stationary stator in response to control signals from the external system, the circuit comprising: first and second electrically conductive linear guides mounted on a frame and for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide. Preferably, the power supply circuit further includes a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
[0020] According to another aspect of the invention, there is provided a power supply circuit for a linear motor, the motor having a stationary stator including permanent magnets, a movable stage including coils and a controller for communicating with an external data processing system and adapted to energize the coils to position the movable stage over the stationary stator in response to control signals from the external system, the circuit comprising: first and second magnetically permeable linear guides mounted on a frame and for slideably mounting the stage over the stator to form a magnetic circuit linking the frame and stage, wherein each linear guide has a stage portion attached to the stage and wound with a stage coil, a frame portion attached to the frame and wound with a frame coil, a plurality of ball bearings disposed between and magnetically coupling the stage and frame portions, electric conductors coupling the frame coil to an external power supply for generating a magnetic flux in the frame portion, and electric conductors coupling the stage coil to the controller for providing electrical power induced in the stage coil by the magnetic flux. Preferably, the power supply circuit further includes a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
[0021] According to another aspect of the invention, there is provided a power supply circuit for a linear motor, the motor having a stationary stator including permanent magnets, a movable stage including coils and a controller for communicating with an external data processing system and adapted to energize the coils to position the movable stage over the stationary stator in response to control signals from the external system, the circuit comprising: first and second electrically conductive linear guides mounted on a frame and for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, a brush mounted on the stage portion and contacting the frame portion, and a conductor coupling the brush to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide. Preferably, the brush is spring mounted on the stage. Preferably, the power supply circuit further includes a battery mounted on the stage and coupled to the controller for delivering supplemental power to the controller.
[0022] Advantageously, no umbilical wires are used to connect the stage or controller to the frame or data processing system. In addition, the linear guides facilitate effective heat dissipation from the stage while providing improved power transfer to the stage.
[0023] Embodiments of the invention may best be understood by referring to the following description and accompanying drawings. In the description and drawings, like numerals refer to like structures or processes. In the drawings:
[0024] FIG. 1 is a side view of a linear motor in accordance with the prior art;
[0025] FIG. 2 is a side view of an integrated linear motor in accordance with an embodiment of the invention;
[0026] FIG. 3 is a block diagram illustrating an exemplary data processing system adapted for implementing an embodiment of the invention;
[0027] FIG. 4 is a schematic diagram illustrating a linear motor having its driver/controller powered through brushes and collector rails in accordance with an embodiment of the invention;
[0028] FIG. 5 is a front view of a linear motor having its driver/controller powered through insulated linear guides in accordance with an embodiment of the invention;
[0029] FIG. 6A is a front view of a linear motor having its driver/controller powered by magnetic induction in accordance with an embodiment of the invention; and,
[0030] FIG. 6B is a perspective view of the coils and cores for use in the embodiment of FIG. 6A in accordance with an embodiment of the invention.
[0031] In the following description, numerous specific details are set forth to provide a thorough understanding of the invention. However, it is understood that the invention may be practiced without these specific details. In other instances, well-known software, circuits, structures and techniques have not been described or shown in detail in order not to obscure the invention. The term "data processing system" is used herein to refer to any machine for processing data, including the computer systems and network arrangements described herein.
[0032] FIG. 2 is a side view of an integrated linear motor 200 in accordance with an embodiment of the invention. The integrated linear motor 200 includes a stage 210 slideably mounted over a stator 220. The stage 210 includes coils 230 and the stator 220 includes permanent magnets 240. The stage 210 is adapted to move back and forth over the stator 220 which may be incorporated in or form a frame 220 for the motor 200. The stage 210 is mechanically supported on the frame 220 by linear guides 510, 520 (see FIG. 5). The stage 210 may also be supported on the frame 220 by similar structures.
[0033] The linear motor 200 is controlled by a driver/controller 250 that is mounted on the stage 210. The driver/controller 250 includes a central processing unit or CPU, memory, a transceiver or transceiver interface, and I/O interfaces. The CPU may include dedicated coprocessors and memory devices. The memory may include RAM, ROM, databases, or disk devices. The transceiver or transceiver interface may include radio frequency, infrared, and power-line carrier transceivers or transceiver interfaces, respectively. And, the I/O interfaces may include interfaces for sensor inputs and coil outputs. In addition, the drive/controller 250 may support detachable input and display devices. The detachable input device may include a keyboard, mouse, trackball, or similar device. The detachable display may include a computer screen or terminal device. The driver/controller 250 has stored therein data representing sequences of instructions which when executed cause the operations described herein to be performed. Of course, the driver/controller 250 may contain additional software and hardware a description of which is not necessary for understanding the invention.
[0034] The drive/controller 250 is in wireless data communication with a remote data processing system 300 (see FIG. 3). This wireless data communication is supported by a first transceiver 290 mounted on the stage 210 and coupled to or incorporated in the driver/controller 250 and a second transceiver 350 (see FIG. 3) associated with the data processing system 300. The transceivers can include radio frequency ("RF"), infrared ("IR"), and power-line carrier (high frequency modulation) transceivers and various communication protocols can be supported including the Bluetooth, wireless local area network ("LAN"), and asymmetric digital subscriber line ("ADSL") protocols.
[0035] FIG. 4 is a schematic diagram illustrating a linear motor 200 having its driver/controller 250 powered through brushes and collector rails in accordance with an embodiment of the invention. The driver/controller 250 receives electrical power from a power source 450 through power or collector rails 430, 440 mounted on the frame 220 which are in contact with brushes 410, 420 mounted on the stage 210. The power or collector rails 430, 440 may be linear guides 510, 520 (see FIG. 5). To improve conductance, the brushes may be mounted on springs 460, 470. On the stage 210, power from the brushes 410, 420 is distributed to the driver/controller 250 and other stage mounted devices. Similarly, a collector ring arrangement (not shown) typical of subway trains and the like may be used to supply power to the stage 210.
[0036] FIG. 5 is a front view of a linear motor 200 having its driver/controller 250 powered through insulated linear guides 510, 520 in accordance with an embodiment of the invention. In this embodiment, the rail or frame portion 511, 521 of each linear guide 510, 520 is connected to the power source 450. The rail or frame portion 511, 521 is generally insulated from the frame 220 by first insulators 530, 540. The stage portion 512, 522 of each linear guide 510, 520 is connected to the stage 210 upon which is mounted the driver/controller 250. The stage portion 512, 522 is generally insulated from the stage 210 by second insulators 550, 560. The insulated linear guides 510, 520 function to both support and provide power to the stage 210. Ball bearings 570, 580 provide the points of electrical contact between the rail or frame 511, 521 and stage 512, 522 portions of the linear guides 510, 520.
[0037] FIG. 6A is a front view of a linear motor 200 having its driver/controller 250 powered by magnetic induction in accordance with an embodiment of the invention; and, FIG. 6B is a perspective view of the coils 611, 621 and cores 610, 620 for use in the embodiment of FIG. 6A in accordance with an embodiment of the invention. In this embodiment, the stage 210 and frame 220 have associated coils 611, 621 wound on respective cores 610, 620. The rail or frame coil 621 is connected to a power source 450. When energized, the frame coil 621 causes a magnetic flux to link the stage core 610 and coil 611 and hence induce a voltage across the stage coil terminals. The stage coil terminals are connected to the driver/controller 250 and provide it with electric power. The stage and frame coils 611, 621 and cores 610, 620 may be integrated with the linear guides 510, 520 and/or stage 210 and frame 220.
[0038] According to another embodiment of the invention, the stage 210 may be powered by a rechargeable battery (not shown) alone or with a rechargeable battery in combination with one or more of the linear guide based power delivery means described above.
[0039] Referring again to FIG. 2, the stage 210 generally includes a metal or cast resin armature plate (not shown) in which the armature coils 230 are embedded. For a three phase motor, typically six coils are used three of which are shown in FIG. 2, in a non-overlapping arrangement, but, as will be appreciated by those skilled in the art, they could be disposed in an overlapping position. The armature plate is formed with a suitable thermally conductive metal or resin. A heat sink (not shown), made of a suitable thermally conductive material (e.g. aluminium) is attached by a heat conductive epoxy to the armature plate. Thermally conductive pins (not shown) can be used to help conduct heat from the armature coils 230 to the heat sink and also help secure the heat sink to the armature plate. One or more fans (not shown) can be attached to the heat sink to move air across the heat sink to help cool it and thereby aid in heat transfer away from the armature coils 230. The heat sink typically includes fins (not shown) to aid in heat removal by providing an additional surface area over which air may pass. The linear guides 510, 520 are also effective in transferring heat from the stage 210 to the frame 220 by conduction.
[0040] Sensors 270 (e.g. Hall Effect sensors), attached to the stage 210, generate commutating signals indicating the position of the armature coils 230 relative to the stator permanent magnets 240. As will be appreciated by those skilled in the art, these commutating signals are used to control sequential switching of power to the armature coils 230 by the driver/controller 250. In a three-phase embodiment of the invention, three commutation position sensors 270 (e.g. three Hall Effect sensors) may be used. In addition, an armature position encoding sensor 280 is attached to stage 210. The armature position encoder 280 may be, for example, an optical encoder. The use of Hall Effect sensors 270 is optional.
[0041] Commutation signals from the sensors 270 and armature position signals from the armature position encoder 280 are coupled to the driver/controller 250. The armature position signals, which indicate the position of the stage 210, and the commutation signals, are decoded as necessary by the driver/controller 250 and used to control the supply of power to the armature coils 230. Alternatively or additionally, the armature position and commutation signals may be received by the driver/controller 250 and transmitted via the coupled stage mounted transceiver 290 to the data processing system 300.
[0042] FIG. 3 is a block diagram of an exemplary data processing system 300 adapted for implementing an embodiment of the invention. The data processing system is suitable for controlling and/or monitoring one or more integrated linear motors 200 in conjunction with a graphical user interface ("GUI"). The data processing system 300 includes an input device 310, a central processing unit or CPU 320, memory 330, a display 340, and a transceiver 350. The input device 310 may include a keyboard, mouse, trackball, or similar device. The CPU 320 may include dedicated coprocessors and memory devices. The memory 330 may include RAM, ROM, databases, or disk devices. The display 340 may include a computer screen or terminal device. And, the transceiver 350 may include RF, IR, and power-line carrier transceivers. The data processing system 300 has stored therein data representing sequences of instructions which when executed cause the operations described herein to be performed. Of course, the data processing system 300 may contain additional software and hardware a description of which is not necessary for understanding the invention.
[0043] In operation, the driver/controller 250 receives an instruction set from the data processing system 300 via the stage mounted transceiver 290 and data processing system transceiver 350. The instruction set specifies the position or path the stage 210 is to move to or over, respectively. The driver/controller 250 receives position and commutation signals from the position and commutation sensors 270, 280, respectively. From the received position signals, commutation signals, and instructions, the driver/controller 250 computes the drive signals to be provided to the armature coils 230 to complete the repositioning or movement specified by the instruction set. Using power provided by the frame mounted power rail, for example, the driver/controller 250 generates the necessary drive signals and provides these to the armature coils 230. The driver/controller 250 continues to monitor the position and commutation sensors 270, 280 during movement of the stage 210. After the stage 210 has been repositioned or moved in accordance with the instruction set, the driver/controller 250 reports instruction set completion and the new location of the stage 210 to the data processing system 300 and awaits a new instruction set. The driver/controller 210 may continually report stage position and other parameters (e.g. power consumption, temperature, etc.) to the data processing system 300 or these parameters may be reported upon request by the data processing system 300.
[0044] The sequences of instructions which when executed cause the operations described herein to be performed by the driver/controller 250 and/or data processing system 300 can be contained in a data carrier product according to an embodiment of the invention. This data carrier product can be loaded into and run by the driver/controller 250 and/or data processing system 300. In addition, the sequences of instructions which when executed cause the operations described herein to be performed by the driver/controller 250 and/or data processing system 300 can be contained in a computer software product according to an embodiment of the invention. This computer software product can be loaded into and run by the driver/controller 250 and/or data processing system 300. Furthermore, The sequences of instructions which when executed cause the operations described herein to be performed by the driver/controller 250 and/or data processing system 300 can be contained in an integrated circuit product including a coprocessor or memory according to an embodiment of the invention. This integrated circuit product can be installed in the driver/controller 250 and/or data processing system 300.
[0045] Advantageously, no umbilical wires 190 are used to connect the stage 210 or driver/controller 250 to the frame 220 or data processing system 300. In addition, the linear guides 510, 520 facilitate effective heat dissipation from the stage 210 while providing improved power transfer to the stage 210.
[0046] Although preferred embodiments of the invention have been described herein, it will be understood by those skilled in the art that variations may be made thereto without departing from the spirit of the invention or the scope of the appended claims.
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This injection molded grip features a unique pattern ingrained in the mold yielding a fashionable appearance. The flanged and rounded ends keeps the hand from edging off the grip. These grips have proven to be very popular choice for bicycles, fitness equipment, and a variety of tools and equipment.
This JLX Model grip has one size, listed below. Grip sizes are based on a bar or pipe diameter. Each grip is assigned a Series Number for reference.


text:
Q: Get the text present inside the span in selenium I have to get the value inside the span tag,How to get the value?Class name is same but when there is an error in any of the field for that class the text will be visible .For example i have twofields :
1)depositorname
2)company name
If company name is wrong,Then message is "Company name not found".This message is displayed in span tag were depositorname span tag doesnot have linktext value.
sameclass

A: You need just to configure a situation when that span is visible. Find this span and make getText operation.

redpajama_set_name: RedPajamaStackExchange


text:
Google begins publicly reporting self-driving car accidents
By Jacob Kastrenakes@jake_k Jun 5, 2015, 1:53pm EDT
Source Google (1) and (2) | Via USA Today
Share All sharing options for: Google begins publicly reporting self-driving car accidents
Google is beginning to publicly detail its driverless car accidents in light of heightened concern about their safety following reports that they've already been in several collisions. Accidents will be detailed on a monthly basis as part of a new report that Google is starting to release on the project's progress. In its first report, for the month of May, Google also details all prior accidents that the vehicles have gotten into. None of which, Google says, were its car's fault.
Accidents largely involve Google's car being rear-ended
"In the six years of our project, we've been involved in 12 minor accidents during more than 1.8 million miles of autonomous and manual driving combined," Google writes. "Not once was the self-driving car the cause of the accident." The 12 accidents almost exclusively come from the car being rear-ended, with other instances involving the car getting sideswiped or hit after another vehicle failed to stop at a stop sign, according to Google.
Detailing these accidents is certainly meant to calm public concern. It's also a sign of confidence from Google, suggesting that it really doesn't expect this vehicle to be at fault in any accidents. That is, of course, the dream of the driverless car, so one would hope that Google has that down before putting its vehicle out on the roads.
That's exactly what Google is doing soon, too. This summer, Google plans to expand its test track to include the public roads of Mountain View, California. That's a big step forward that'll let Google and the public see how close these vehicles are to being ready for use. The tests will start small, however. Drivers will still be present and ready to take over when necessary, and the cars will be capped at 25 miles per hour.
Verge Video archive: Why Google's new self-driving cars could be the safest on the road (2014)


text:
Q: mod_perl + mod_authn_dbd does not accept AuthDBDUserPWQuery Introduction:
Our company uses dynamically generated vhosts via mod_perl to generate vhosts from our database. We basically have a table "domains" which is dynamically modified for our hundreds of customers and partners.
We have several kinds of templates with different Aliases, includes and rules. So we basically use the following Perl script to generate different templates:
<Perl>
    #!perl

    use DBI;
    use Time::HiRes qw(time);

    use Apache2::ServerUtil ();
    my $s = Apache2::ServerUtil->server;

    $Apache2::PerlSections::Save = 1;

    my $dsn  = "dbi:mysql:...:...";
    my $user = "...";
    my $pw   = "...";
    my $db   = DBI->connect($dsn, $user, $pw) or die $DBI::errstr;

    my $select = qq/SELECT * FROM domains ORDER BY ID/;
    my $sth_select = $db->prepare($select);

    $sth_select->execute() or die $DBI::errstr;
    my @row;
    while( @row = $sth_select->fetchrow_array ) {
        $My::domain = @row[1];
        $My::dir = @row[3];
        $My::template = @row[4];
        $s->add_config(["Include /srv/www/vhosts/templates/".$My::template]);
    }
</Perl>

In the templates we define the hostname by the variables used in the perl loop.
For preview-purpose we want to protect some of the projects / domains with a database-controlled login. That is where mod_atuhn_dbd comes into the game.

This is our final solution for database-login for different projects and where the actual problem starts:
<VirtualHost *:80>
    DBDriver   mysql
    DBDParams  "host=... dbname=... port=3306 user=... pass=..."
    DBDMin     1
    DBDKeep    2
    DBDMax     10
    DBDExptime 60

    <Perl>
        use File::Copy;
        $ServerName = $My::domain;
        $DocumentRoot = "/srv/www/".$My::dir;

        $Directory {"/srv/www/".$My::dir} = {
            AllowOverride        => "All",
            Order                => "allow,deny",
            deny                 => "from all",
            Satisfy              => "Any",
            Require              => "valid-user",
            AuthType             => "Basic",
            AuthName             => "Achtung",
            AuthBasicProvider    => "socache dbd",
            AuthnCacheProvideFor => "dbd",
            AuthnCacheContext    => "Test",
            AuthnCacheTimeout    => "60",
            AuthDBDUserPWQuery   => "SELECT `user_passwd` FROM prev_user` WHERE `host_name` = '".$My::dir"' AND `user_name` = %s"
        };
    </Perl>
</VirtualHost>

problem is - Apache says :
apache2[10988]: $parms->add_config() has failed:
AuthDBDUserPWQuery takes one argument, Query used to fetch password for user at /usr/lib/x86_64-linux-gnu/perl5/5.20/Apache2/PerlSections.pm line 216.\n

If I remove the directive from the perl section and put it into the vhost directly it works as expected and the user will get the prompt and has to log in via the database parameters. Too bad there is no option to use a dynamic host inside the query so this won't really work.
<VirtualHost *:80>
    <Perl>
        [...]
        $Directory {"/srv/www/".$My::dir} = {
            AllowOverride        => "All",
            Order                => "allow,deny",
            deny                 => "from all",
            Satisfy              => "Any",
            Require              => "valid-user",
            AuthType             => "Basic",
            AuthName             => "Achtung",
            AuthBasicProvider    => "socache dbd",
            AuthnCacheProvideFor => "dbd",
            AuthnCacheContext    => "Test",
            AuthnCacheTimeout    => "60"
        };
    </Perl>

    <Directory /srv/www/websites/admin>
        AuthDBDUserPWQuery "SELECT `user_passwd` FROM prev_user` WHERE `host_name` = '[NEED DYNAMIC HOST HERE]' AND `user_name` = %s"
    </Directory>
</VirtualHost>

There seems to be some odd issue with the following part:
$Directory {"/srv/www/".$My::dir} = {
          [...]
          AuthDBDUserPWQuery   => "SELECT `user_passwd` FROM prev_user` WHERE `host_name` = '".$My::dir"' AND `user_name` = %s"
};

Any suggestions?

A: For further information:
Seems to be a bug in mod_perl. Clearing the spaces in the query results in the string being interpreted as one value. Obviously the spaces result in the string being interpreted as multiple values.
So the solution is:
$Directory {"/srv/www/".$My::dir} = {
      [...]
      AuthDBDUserPWQuery   => "SELECT`user_passwd`FROM`prev_user`WHERE`host_name`='".$My::dir"'AND`user_name`=%s"
}

Very dirty and confusing but it works.


Sustainability learning outcomes are included in eight areas of General Education required of all undergraduate degree programs. They are listed below. In addition sustainability-specific SLOs are met by those courses which are categorized as sustainability-focused. One graduate program was identified as having sustainability-specific SLOs.
Analyze and compare perspective, meaning and style in different texts, including those that reflect multicultural images and voices.
Use investigative and analytical thinking skills to examine alternatives, explore complex questions and solve challenging problems.
Evaluate contexts, attitudes, values, and responses of different audiences.
Demonstrate an ability to apply scientific knowledge and to critically assess real-world issues and make sound decisions.
Analyze, interpret and reflect critically upon ideas of value, meaning, discourse and expression from a variety of perspectives from the arts and/or humanities.
Describe and explain the historical and/or cultural context within which a body of work was created or a tradition emerged.
Analyze and explain the multiple perspectives found in the social sciences that underlie debates on important historical and contemporary issues.
Demonstrate an understanding of how social problems impact individuals, communities and societies.
Identify and actively engage in behaviors conducive to individual health, well-being or development, and understand the value of maintaining these behaviors throughout their lifespan.
Identify and apply strategies leading to health, well-being or development for community members of diverse populations.
Apply the knowledge and skills of science and technology and evaluate how they impact individuals, the community and/or society.
Describe and explain how race, ethnicity, class, gender, religion, sexuality and other markers of social identity impact life experiences and social relations.
Analyze and explain the deleterious impact and the privileges sustained by racism, sexism, ethnocentrism, classism, homophobia, religious intolerance or stereotyping on all sectors of society.
Be able to define sustainability and understand how concepts of sustainability are connected to issues of social justice, the environment, and the economy at local, regional, and global levels.
Demonstrate knowledge of key concepts related to the study of sustainability, including planetary carrying capacity, climate change, and ecological footprint.
Be able to explain how sustainability relates to their lives and their values, and how their actions impact issues of sustainability at the individual, and at local, regional, and global levels.


text:
White nationalists built a memorial for the white woman fatally shot by a Minneapolis policeman
By Marwa Eltagouri
Marwa Eltagouri
General assignment reporter
Three days before Christmas, a small memorial appeared outside a Minneapolis police precinct's headquarters.
A dozen lit candles, about twice as many roses and a small framed picture of Justine Damond seemed to honor the life of the 40-year-old Australian woman who was killed by a Minneapolis police officer last summer. Under the portrait were three signs that read "United We Stand."
By Saturday, the shrine had been vandalized, and by Christmas Day it had been removed by police. A white nationalist group claimed it erected the memorial.
"One family will be having an incomplete Christmas this year," Identity Evropa said in a tweet Friday that said its activists were responsible for the memorial outside the department's Fifth Precinct — the precinct where Officer Mohamed Noor was working in July when he fatally shot Damond in an alley in her south Minneapolis neighborhood after she called 911 to report a possible sexual assault. The tweet pointed out that Noor has not been charged. It also referred to his Somali birth.
White nationalists have become increasingly vocal this year. In August, a rally at the University of Virginia by several hundred white nationalists and white supremacists, organized in part by Identity Evropa, resulted in shoving, punching and the spraying of chemical irritants by both groups. The next day, a counterprotester was killed at a second rally.
Many white nationalists have openly embraced President Trump, who has attempted to curtail immigration and has denounced "sanctuary cities."
This was not the first time white nationalists built a memorial for the victim of a high-profile shooting. A memorial last year to Kate Steinle, who was fatally shot while on a stroll with her father in San Francisco's Embarcadero in 2015, was reportedly created by white nationalists. A jury acquitted a Mexican immigrant charged in the 32-year-old's death, which became a rallying cry for those who want stricter immigration measures, such as a wall along the U.S.-Mexico border.
By the time police were notified of the shrine created for Damond in Minneapolis, it had been disassembled. An officer cleaned up what remained and picked up some extinguished candles that had rolled around — but not because of the memorial's possible ties to the white nationalist group, police spokesman John Elder said.
The department's policy, he said, does not allow memorials or similar postings on police grounds. "Nothing should be on the property. If it blows on the road of travel, at that point, it's basically litter. At that point, it was just stuff that was blowing around," Elder said.
He added that police did not have any indication, aside from "rumors," that the memorial was linked to Identity Evropa, and that the shrine was "absolutely not" taken down because of the group that put it there.
In a statement to the Minneapolis Star Tribune late Sunday, Mayor-Elect Jacob Frey called the actions of white nationalists "cowardly and disgusting."
"I condemn the perpetrators and their tactics in the strongest possible terms. Identity Evropa and those who share their values have no place in our city. Hate has no place in Minneapolis. Period," he said.
[In Minneapolis, response to police shooting of white woman by Somali officer has been different]
Identity Evropa, which refers to itself as a "generation of awakened Europeans," has been identified as a hate group by the Southern Poverty Law Center. The group could not be immediately reached for comment.
The Minnesota Bureau of Criminal Apprehension, which is investigating Damond's death, has released few details about the shooting, which was not captured on camera. While Officer Matthew Harrity and Noor were driving through the alley before midnight July 15, a loud sound reportedly startled them. Shortly afterward, Noor shot Damond. The loud noise may have been caused by a woman slapping the officers' patrol car, according to a search warrant application filed a few weeks after the incident.
The officers had responded to 911 calls from Damond at about 11:30 p.m. reporting a possible sexual assault in the alley behind her home in a nice Minneapolis neighborhood. Damond called again eight minutes later because police had not arrived and she was worried they had gone to the wrong address. Moments later, the loud noise was heard, and Damond approached the side of the police vehicle. Noor then fired his gun across his partner's body and through the driver's-side window, hitting Damond in the abdomen.
Damond, a yoga teacher, died at the scene 20 minutes after she called 911. She had moved to Minneapolis in 2015 to be with her fiance.
Her shooting sparked international outcry. People rallied in Minnesota, Damond's family held beachside vigils in Australia, and the Minneapolis police chief resigned over concerns that Noor and Harrity were not trained properly.
Noor, who is a Somali American, has declined to speak with BCA investigators. Harrity's attorney hinted in July that the officers may have believed they were being ambushed, according to the Star Tribune.
Noor is on administrative leave, Elder said.
Katie Mettler contributed to this report.
FBI thwarts alleged plan to carry out terrorist attack in San Francisco on Christmas
Officers who handcuffed a shrieking 11-year-old at gunpoint will not be disciplined, police say
Marwa Eltagouri Marwa Eltagouri was a general assignment reporter for The Washington Post. She left The Post in 2018. She previously worked as a reporter for the Chicago Tribune, where she covered crime, immigration and neighborhood change.


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You will find also the paper and slides used by Dr. Wallpole of Okyanos and Leslie Miller´s talk with slides.
Read a bunch of them Fas....will check out the one that includes slides later. Thanks !
I saw the announcement from Okyanos on their website and also the plain silence at the Cytori website.
I think that is a disgrace.


text:
Impact of the COVID-19 pandemic on anesthesiologists in India: A cross-sectional online survey of the practices, preparedness, and mind-set
Gauri Raman Gangakhedkar, Sohan Lal Solanki
Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra, India
Dr. Sohan Lal Solanki
Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Mumbai - 400 012, Maharashtra
DOI: 10.4103/joacp.JOACP_375_20
Background and Aims: India is one of the five worst hit countries in the world due to COVID-19, by the fourth week of June 2020. The impact of COVID-19 on the health practices is well-documented but there are no studies assessing its impact on anesthesiologists in India. This study aims at assessment of the impact of COVID-19 on the practices followed, the preparedness, and mindset of anesthesiologists in India. Material and Methods: Using Google forms, a cross-sectional, questionnaire-based survey was conducted between the 5th and 22nd of May, 2020, among trainees and practicing anesthesiologists, in India. The anesthesiologists were invited to participate, using their e-mail addresses and through the social media platforms such as Facebook and WhatsApp. The responses that were generated, were analyzed using SPSS version 23 (IBM, Armonk, NY). Results: Of the 707 anesthesiologists who participated, 68.3% had already worked in a COVID-19 specialty unit. Only 41.7% of the anesthesiologists felt confident that they had sufficient knowledge to deal with COVID-19 infected patients. Fear of catching the infection and infecting loved ones were important causes of anxiety, which was seen in 95% of the participants. Majority of the participants, (64.5%) did not think that elective surgical procedures could be restarted at this point. Conclusion: COVID-19 has had grave impact on anesthesiologists, on the professional and personal front, and will possibly cause near-permanent changes in the work culture. Restarting elective surgical procedures, will require meticulous planning. In spite of their self-perceived under-preparedness to combat COVID-19, an overwhelming majority of participating anesthesiologists were prepared to contribute to the management of COVID-19.
Gangakhedkar GR
Solanki SL
anaesthesiologists