Results 21 to 30 of about 28,996 (260)
Impedance of finite length resistive cylinder
Physical Review Special Topics. Accelerators and Beams, 2004 We determine the impedance of a cylindrical metal tube (resistor) of radius a, length g, and conductivity σ attached at each end to perfect conductors of semi-infinite length.
S. Krinsky +2 more
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Journal of Natural Fibers, 2022 The significant physical, economic and environmental properties of some agricultural wastes have made them viable alternatives for the conventional sound-absorbing materials.
Ebrahim Taban +5 more
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The impact of pneumatic tube transport on whole blood coagulation and platelet function assays
Platelets, 2018 Pneumatic tube is an attractive way to transport blood samples from the emergency department to the central laboratory facility. We aimed to investigate the impact of pneumatic tube transportation on blood samples for analysis of whole blood coagulation ...
Peter H. Nissen +3 more
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Analysis and Experimental Investigation of Sound Absorbing Materials for Industrial Noise Control
Scientific Bulletin of Valahia University: Materials and Mechanics, 2023 These days, noise pollution is a major issue that affects the environment. The high amount of noise present in the industries has adverse impact on the workers, operators and people associated in those fields.
Hasan Shahajada Mahmudul +3 more
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Archives of Acoustics, 2021 Numerical models allow structural characteristics to be obtained by solving mathematical formulations. The sound absorption capacity of a material can be acquired by numerically simulating an impedance tube and using the method governed by ISO 10534-2 ...
Cláudia Ohana BORGES MENDES +1 more
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Impedance-Tube Technique for Determining the Fatigue Properties of Compliant Tubes [PDF]
The Journal of the Acoustical Society of America, 1964 A laboratory technique has been developed that permits the investigation of the structural integrity of compliant tubes. This technique involves an electrodynamic shaker and an impedance tube filled with water. Standard test procedures to check the dynamic response and fatigue life use sections of specimens and/or full-scale tubes excited by a shaker ...
B. J. Moskal, J. P. Frederick
openaire +1 more source
Positron, 2017 Telah dilakukan pembuatan alat impedance tube sesuai dengan standar ISO 10534-2: 1998 [2] yaitu dimensi tabung 10 cm, ketebalan tabung 5 mm, jarak antara sumber suara dengan microphone terdekat 70 cm, jarak antara sampel dengan microphone terdekat 21 cm,
Azis Eko Prakoso +5 more
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Narrow-band impedance of a round metallic pipe with a low conductive thin layer
Physical Review Special Topics. Accelerators and Beams, 2014 The new traveling wave structure with a single synchronous mode resonantly excited by the relativistic charge is presented. The structure is composed of a metallic tube with an internally coated low conductive thin layer.
M. Ivanyan +3 more
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FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Zhongguo Jianchuan YanjiuObjectiveAs specific and demanding requirements are imposed by measuring the impedance of the anechoic coatings on the hull surface of an underwater vehicle using the traditional water-filled tube experiment, a method of sound absorption coefficient ...
Fan ZHANG +3 more
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