reagents, internal standards, surrogates, glassware, apparatus, equipment, solvents and analyses. laboratory calibration blank An aliquot of reagent water, possibly adjusted in pH, but without addition of other reagents. laboratory dry blank or laboratory procedural blank An aliquot of solvent representing the volume used for RFS extraction treated as an environmental sample but not processed through resin or filters. instrument blank Verification of calibration blank continuing check blank
Here's how you can check your memory usage in real time in Ubuntu. 1. Open a terminal window. 2. Type in the following command then hit Enter. watch -n 1 free -m 3. You can also use this command: watch -n 1 cat /proc/meminfo. For more, see the original article at the link below.
Tried this using netcat ( to listen/send data ) and waited forever... no timeout :/ And I can confirm the data was dropped. I even changed /proc/sys/net/ipv4/tcp_keepalive_time to a really small number â er453r Jun 12 '14 at 13:51. @er453r try enabling verbose output with ncat -v to see what exactly ncat is doing. It took me 2m7.291s on a vanilla Ubuntu 12.04 install to timeout â Creek Jun 12 '14 at 15:23.