نتایج جستجو برای: cooperation chambers
تعداد نتایج: 72372 فیلتر نتایج به سال:
The Resistive Plate Chambers (RPC) detector of the CMS experiment at the LHC proton collider (CERN, Switzerland) will employ an online gas analysis and monitoring system of the freon-based gas mixture used. We give an overview of the CMS RPC gas system, describe the project parameters and first results on gas-chromatograph analysis. Finally, we report on preliminary results for a set of monitor...
background: although the depth of the counting chamber is an important factor influencing sperm counting, no research has yet been reported on the measurement and comparison of the depth of the chamber. we measured the exact depths of six kinds of sperm counting chambers and evaluated their accuracy. materials and methods: in this prospective study, the depths of six kinds of sperm counting cha...
The hybrids of ATLAS semi-conductor tracker (SCT) were made with Cu/Polyimide flex-circuits, reinforced with carbon-carbon substrates, in the barrel and in the endcap modules. We report successes, problems and solutions in the course of production of 2600 pieces of hybrids each.
We propose a new model for describing baryon semi-leptonic decays for estimating F and D values with explicit breaking effects of both SU(3) and SU(2) flavor symmetry, where all possible SU(3) and SU(2) breaking effects are induced from an effective interaction. An overall fit including the weak magnetism form factor yields F = 0.477 ± 0.001, D = 0.835 ± 0.001, Vud = 0.975± 0.002, and Vus = 0.2...
We have developed a semi-automated assembly system and constructed 124 silicon microstrip modules so far for the ATLAS SCT barrel. This article describes the assembly procedure, evaluations of precisions and the module survey results. A precision of B2 mm is achievable with this assembly system. r 2003 Elsevier B.V. All rights reserved.
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