نتایج جستجو برای: q meter
تعداد نتایج: 148132 فیلتر نتایج به سال:
Specific leaf area ( the ratio of leaf area to dry mass) is one of the most important ecological variables can be viewed as the tradeoff between ecosystem mass balance and ecosystem energy balance. This variable is further particularly sensitive to changes in the external environment and in the internal functioning of the plant. In this research, we studied the effect of species and leaf posi...
Abstract: To estimate the freshness of beef meat the dielectric measurements were carried out on the twenty five samples. Capacitance (C) and conductance (G) were measured using LCZ meter over a frequency range from 10 kHz to 1 MHz. The measured values were used to calculate permittivity and conductivity of beef at various time intervals (2, 4, 10, 20, 30, 40 and 50 days) during storage. The ef...
The first goal of this study was to investigate the accuracy of the displayed reference plane air kerma (Ka,r) or air kerma-area product (Pk,a) over a broad spectrum of X-ray beam qualities on clinically used interventional fluoroscopes incorporating air kerma-area product meters (KAP meters) to measure X-ray output. The second goal was to investigate the accuracy of a correction coefficient (C...
Laser pulses fired at retroreflectors on the Moon provide very accurate ranges. Analysis yields information on Earth, Moon, and orbit. The highly accurate retroreflector positions have uncertainties less than a meter. Tides on the Moon show strong dissipation, with Q = 33 ± 4 at a month and a weak dependence on period. Lunar rotation depends on interior properties; a fluid core is indicated wit...
A mesoscopic superposition of quantum states involving radiation fields with classically distinct phases was created and its progressive decoherence observed. The experiment involved Rydberg atoms interacting one at a time with a few photon coherent field trapped in a high Q microwave cavity. The mesoscopic superposition was the equivalent of an “atom 1 measuring apparatus” system in which the ...
in islamic civilization, rhetoric is the product of a great attempt to find out the secrets of quranic language; nevertheless, the achievements of such studies have been mechanically applied to persian which, compared to arabic, has a different linguistic system and literary conventions. this approach has brought about problems in defining literary terms, internal rhythm being one of them. this...
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