Results 31 to 40 of about 3,178,864 (145)

Evaluation of air permeability of stretch textiles

, 2021
Hlavním cílem této diplomové práce je popis změny struktury textilií s vysokou elasticitou v souvislosti s její prodyšností. Vlivem vydutí textilie při měření prodyšnosti dochází k deformacím, které mají za následek nepřesnost stanovení hodnoty ...
Slapničková, Jana
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Effect of air permeability at the bottom on rainfall infiltration

Frontiers in Built Environment
In geotechnical engineering, the permeability of air through soil has been recognized as a factor influencing the dynamics of subsurface water pressure, thereby playing a role in determining the stress levels experienced by the soil.
Wenjing Tian, Xuexin Zheng, Herman Peiffer, Jian Cen, Benny Malengier, Wei Zheng, Huibin Song, Yutian Zuo   +7 more
doaj   +1 more source

Air tightness of compressed air storage energy caverns with polymer sealing layer subjected to various air pressures

Journal of Rock Mechanics and Geotechnical Engineering, 2023
During the operation of compressed air storage energy system, the rapid change of air pressure in a cavern will cause drastic changes in air density and permeability coefficient of sealing layer.
Shikang Qin, Caichu Xia, Shuwei Zhou
doaj   +1 more source

Finite element modelling of blowouts in compressed air tunnels [PDF]

, 1990
This study develops criteria for predicting blowouts in compressed air tunnels through an integrated design approach using empirical laboratory test data in a finite element model.
Peck, James G.
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Experimental study of dynamic air permeability for woven fabrics

, 2012
Dynamic permeability is relevant to textile applications subjected to fluid/gas flow under high pressure, such as automotive airbags, wearable airbags and parachute fabrics.
Xiao, Xueliang, Zeng, Xuesen, Bandara, Palitha, Long, Andrew   +3 more
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Comfort related woven fabric transmission properties made of cotton and nylon

Fashion and Textiles, 2022
The interaction of water and air i.e. moisture regain, water vapor transmission, wicking and air permeability with woven textiles are tested to investigate the comfort of woven fabrics made of nylon, cotton, and cotton–nylon mixtures with different yarn ...
Biruk Fentahun Adamu, Jing Gao
doaj   +1 more source

The use of ultrasonic pulse velocity to estimate the water permeability of concretes

MATEC Web of Conferences, 2018
In this work we investigated the possibility of estimating the water permeability of concrete from the ultrasonic surface wave velocity (Rayleigh's waves).
Abdelhalim Benouis, Ali Mehamdia
doaj   +2 more sources

Effect of Air Permeability of Material and Structure of Air Layer on Garment Insulation

Textiles
This study investigated thermal insulation in layered suit systems by systematically varying air-layer thickness and structure (single vs. sandwiched), fabric air permeability, and ambient airflow.
Jiyeon Kwon, Shuga Tanizaki, Fumitoshi Kobayashi, Shunji Takeuchi, Hiroki Maru, Hiroyuki Kanai, Tetsu Sasagawa   +6 more
doaj   +1 more source

Estimation Liquid Permeability Using Air Permeability Laboratory Data

Iraqi Journal of Chemical and Petroleum Engineering, 2014
Permeability data has major importance work that should be handled in all reservoir simulation studies. The importance of permeability data increases in mature oil and gas fields due to its sensitivity for the requirements of some specific improved ...
Jalal Abdulwahid Al-Sudani, Rwaida Kaiser and Salam, Salam J. Al-Rubeai   +2 more
doaj  

Other title: 190th Air Refueling Wing Airmen and Their Families; Other title: One Hundred Ninetieth Air Refueling Wing Airmen and Their Families

, 1994
application/pdfA set of 9 documents provided by the 190th Air Refueling Wing, Kansas Air National Guard, with resources and information for 190th Air Refueling Wing Airmen and Their Families.Air National Guard (2016) 190th Air Refueling Wing (2016 ...
Kansas. Air National Guard. Air Refueling Wing, 190th.
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