Images(2). Claims(16). 1. A method for producing a quartz glass crucible for pulling up silicon single crystals, comprising the following steps: (a) forming a pre-molding by feeding powdered silicon dioxide into a mold, and by then forming it into a layer along an inner surface of the mold;escription. The present invention relates to a quartz glass crucible for use in pulling up silicon single crystals and to a method for producing the crucible. In further detail, it relates to a quartz glass crucible comprising a rotatable mold of an open-top type, and to a method for producing the mold.
The Taraweeh Prayer is a sunnah al-muakkada. The shortest is two rakats and the longest is twenty rakats. However, during the time of Umar b. Abdulaziz, the people of Medina observed the Taraweeh Prayer for thirty-six rakats. (Fathuâl Bari, v.4, p.220)
There are 5 daily prayers and a total of 17 obligatory (Fard) rakat. Fard is an Arabic world, which means compulsory or obligatory. The Five daily prayer i.e., Fajr, Dhuhr, Asr, Maghrib and Isha are obligatory prayers. It is a sin to intentionally skip a Fard Prayer.ote: The Holy Prophet, peace be upon him, offered extra Rakat of Prayer in addition to those of Fard Prayers. These are called Sunnah Prayers. It is considered necessary by all jurists to offer these prayers. The willful neglect of Sunnah Prayers is censurable in the sight of Allah.