Based on the CFD numerical simulation method, this paper established a pipeline model to study internal flow characteristics of three different combinations hot water systems and thus obtained field information such as pressure, rate, rate inside pipeline. The results showed that smoother transition, smaller velocity uniformity coefficient; higher field, pressure fluctuations, resulting vibrati...

Introduction: Non-uniformity test is essentially the only required daily QC procedure in nuclear medicine practice. Noise creates statistical variation or random error in a flood image. Non-uniformity on the other hand does not have statistical nature and may be regarded as systemic error. The present methods of non-uniformity calculation do not distinguish between these two types of erro...

I ncreasing production efficiency is becoming a major theme for producers in order to maintain or increase their economic return in an increasingly competitive global market. In the case of irrigated agriculture, producers must also address increasing public concern about water conservation, water quality, and environmental protection. Two irrigation management issues require attention in order...

The center pivot irrigation system is a type of technology used to apply water effectively and uniformly over wide variety areas topographies. These systems’ uniformity application greatly affects use, energy consumption, crop production. Performance tests the standard lateral galvanized modified polyethylene plastic pipes in systems were conducted different regions Saudi Arabia. Water distribu...

We investigate computing models that are presented as families of finite computing devices with a uniformity condition on the entire family. Examples of such models include Boolean circuits, membrane systems, DNA computers, chemical reaction networks and tile assembly systems, and there are many others. However, in such models there are actually two distinct kinds of uniformity condition. The f...

to determine the effect of seed size of sugar beet cultivars on germination and seedling vigor, a study was conducted as a 4×6 factorial experiment based on completely randomized design with 4 replications at seed and plant certification and registration institute, karaj in 2013. the treatments were toucan, dorotea, rasta, sharif, pars, and torbat cultivars and four seed width sizes including 2...

Based on the CFD numerical simulation method, a pipe model was established to study internal flow characteristics of two different specifications hot water system, and related information field obtained, such as pressure, velocity rate. The results showed that smoother pipeline transition was, smaller uniformity coefficient would be, higher means pressure fluctuations. Therefore, vibration will...

UNLABELLED The aim of this study was to evaluate whether there exists any discrepancy between the European Pharmacopoeia (Ph. Eur.) and adopted United States Pharmacopeia (USP) tests concerning the weight uniformity measurements of tablet halves after splitting. The USP method does not contain provisions to evaluate split tablets, so here we adopt their whole tablet weight uniformity method. Tw...