This article aims at studying sounding rocket (SR) class, or those vehicles launched from the earth and carrying out various experiments high altitudes. After end of their mission, rockets should deliver a payload to given point give range.
 In general, design tasks are divided into direct inverse ones. paper focuses on designing tasks. this respect, set values maximum range, mass restrict...

 ABSTRACTBackground: There are relatively rich uranium mines in regions of Saghand and Bafgh in Yazd province. This survey was carried out to provide a map of ambient gamma radiation of Yazd province and the probable effects of the existence of these mines on background radiation dose rates.Materials and Methods: The measurements of the outdoor and indoor–environmental exposures (including cosm...

Background: This study aimed to investigate the initial dosage of methadone and factors affecting it in maintenance therapy.Methods: This cross-sectional, descriptive-analytic study was conducted on 157 individuals referring to a methadone maintenance therapy (MMT) clinic. The initial dosage of methadone was 20-45 mg which was adjusted during the treatment based on each patient's evaluation. Th...

This is a preliminary report of 28 patients with ulcerative colitis who we surgically treated with "J" pouch endorectal pull-through operation from 1978 to 1996. All patients are continent with a median stool frequency of 4 times per day, no night soilage. low postoperative complications and one mortality due to pulmonary embolism.

This paper reports on an attempt to modify a circular knitting machine such that it would operate without the need for a customary tension system where a kinitting machine can operate without an asymmetric take-down system preliminary results appear promising and warrant further development.