Pipe fittings are an important element of any pipeline network, ensuring stable and safe operation by regulating the flow working medium. To control performance valves, it is necessary to conduct various tests, main ones which hydraulic pneumatic. It expand testing capabilities reduce time costs. The purpose this work combine pneumatic tests into one test complex, will complex due absence need ...

Background: Cognitive processes are associated with Systematic Physical Activity (SPA). However, few studies have evaluated the relation between SPA and Metacognition (MC). Objectives: (1) to study effect of levels on MC, (2) explore covariance gender. Method: Through a Non-Experimental design intentional sampling, 270 university students participated (Mage= 25.3, SD= 1.5, min= 18, max= 51), 20...

To gain competitive advantage, firms involve suppliers in New Product Development (NPD). However, uncertainty affects selection of suppliers and associated technologies, and selection outcomes in terms of commitment to one supplier or maintaining flexibility. We report on a case study of collaborative NPD with the aim to develop an energy storage unit. The case involved selection of both techno...

Individuals who are heterozygous for the CCR5-Δ32 mutation provide a natural model to examine the effects of reduced CCR5 expression on human immunodeficiency virus (HIV) persistence. We evaluated the HIV reservoir in 18 CCR5-Δ32 heterozygotes and 54 CCR5 wild-type individuals during suppressive antiretroviral therapy. Cell-associated HIV RNA levels (P=.035), RNA to DNA transcriptional ratios (...

We use nonparametric production function methods to decompose farm-level labor productivity growth into components attributable to efficiency change, technical change, and factor intensity. The estimation is accomplished using balanced panel data drawn from the Kansas Farm Management Association for the period 1993 to 2007. We find that labor productivity growth is primarily driven by factor in...

considering the efficiency studies play a role in making available the revise in relative importance, policy reforms and resource management, this study has been accomplished in fish beach seine cooperative companies located in golestan province and used dea approach to measure the technical efficiency (te) and factor effects. the survey data were gathered from 20 farms, which selected via cens...

quality of products and services is considered as a key factor for customer satisfaction. quality function deployment (qfd) is known as a critical tool for translating voice of customers to prioritize technical requirements of a production. the level of this satisfaction depends on the number of fulfilled requirements. it should be noted that this level varies according to the possible constrai...

The LH11-1 FPSO is an 80,000 t cylindrical structure that responsible for the processing, storage, and offloading of process oil from existing newly developed oilfields. In this paper, a full probabilistic analysis was based on very detailed CFD simulation results to evaluate ventilation, gas dispersion, explosion, fire scenarios. A explosion risk performed NORSOK Z-013 FABIG Technical Note 11....

BACKGROUND The purpose of this study was to identify associations between study sponsorship and the methodological quality and published outcomes of head and neck cancer randomized controlled trials (RCTs). METHODS We systematically searched MEDLINE, EMBASE, CINAHL, and the Cochrane Central Register of Controlled Trials for qualified RCTs, evaluating journal impact factor (IF), Jadad score (m...