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)
In Islam, the Isha' daily prayer has four required (Fard) rak'ah. However, in Sunni Islam, the two Sunnah rak'ah following the Isha' are highly recommended and so is the third rakat Wajib Witr. There are a few optional prayers that can be recited after the Isha' prayer, including the Nafilat ul-Layl prayers (together termed tahajjud), as well as the tarawih in Ramadan.