Results 11 to 20 of about 2,617,588 (314)
Structural changes in family areas of the steppe marmot (Marmota bobak) under succession in reserve areas [PDF]
Праці Теріологічної школи, 2014 The structure and development of marmot family areas were studied in conditions of the long-term decline in animal abundance caused by the succession of vegetation in the Striltsivsky Steppe (Luhansk Oblast) after the area has been protected from human ...
E. Borovyk
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Energies, 2023 The dynamic behavior of reed valves during suction and discharge is very important in predicting compressor performance and valve fatigue fracture.
Jeong Deok Park +4 more
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Detection of primary chemical analytes in the THz regime with photonic crystal fiber
Sensing and Bio-Sensing Research, 2021 This paper represents a design mechanism and numerical investigations of a PCF sensor that contains a hollow core for sensing the primary chemical analytes namely water, ethanol, and benzene in the 1–2 THz regime.
Rayhan Habib Jibon +2 more
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Numerical model of the pneumatic diaphragm actuator
Mechanics and Advanced Technologies, 2017 The paper deals with the development of the numerical model of a pneumatic diaphragm actuator to be used in numerical modeling and investigation of such systems as automobile suspension and braking systems, machine tool devices, pressure control valves ...
Aleksandr Kovalenko
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Determination of pressure balance distortion coefficient and zero-pressure effective area uncertainties [PDF]
International Journal of Metrology and Quality Engineering, 2011 The behaviour of piston-cylinder operated pressure balances is characterized by the distortion coefficient λ and zero-pressure effective area A0 which model the variation of a pressure balance’s area in terms of the ...
Ramnath V.
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Effective area calculation of pressure balances by means of dimensional measurements method
Measurement: Sensors, 2021 In this study, a piston-cylinder unit that has 980 mm2 effective area was calibrated by means of the dimensional measurement method. In addition, the cross-floating experiment was conducted to determine the effective area of the same piston-cylinder unit,
A. Türk, M. Aksulu, İ. Meral
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Photonic Sensors, 2017 In this paper, a hexagonal shape photonic crystal fiber (H-PCF) has been proposed as a gas sensor of which both micro-structured core and cladding are organized by circular air cavities.
Md. Ibadul Islam +7 more
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A new model of fluid flow to determine pressure balance characteristics [PDF]
, 2013 Some projects such as the EUROMET project 463 have underlined the lack of agreement between experimental measurements and calculations by the finite element method (FEM), used to determine the piston fall rate of a high-pressure balance used in primary ...
WONGTHEP, Padipat +3 more
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Strain Effect Study on Mode Field Diameter and Effective Area of WII Type Single Mode Optical Fiber
Advanced Electromagnetics, 2016 In this article, the effect of strain on mode field diameter (MFD) and effective area (Aeff) in a modern multilayer WII type single mode optical fiber is investigated.
S. Makouei, F. Makouei
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Electronics Letters, 1976 We find the area of an isotropic linearly polarised antenna by statistical thermodynamics. A quantum-mechanical interpretation is given. For a matched antenna operating at reception, the number of photons captured in an electromagnetic wave is divided into two equal parts: one part is furnished to the load and the other part is reradiated. We prove, by
G. Dubost, J. Dupuy
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