Results 51 to 60 of about 3,178,864 (145)

Important air bases and air distances [in the Pacific Area] [cartographic material].

open access: yes, 1943
[Sheet 1] is labeled 34zBH.O. Misc. 11,13034yB; Insets on "Pacific Area" sheet: Western Aleutian Islands -- Marshall and Gilbert Islands -- Bismarck Archipelago and Solomon Islands.; Also available online http://nla.gov.au/nla.map-vn4839334; National ...
United States. Air Force.
core  

Reducing concrete permeability by using natural pozzolans and reduced aggregate-to-pasteratio

open access: yesJournal of Civil Engineering and Management, 2015
Improved durability of concrete is mainly achieved with low-permeability. Permeability depends on permeability of the bulk cement paste (CP) and that of its interfacial transition zone (ITZ).
Fernando Bustos   +3 more
doaj   +1 more source

Durability Assessment of Blended Concrete by Air Permeability

open access: yesInternational Journal of Concrete Structures and Materials, 2018
Assessment of concrete cover quality is necessary for proper maintenance of concrete structures. Concrete durability is evaluated primarily based on chloride penetrability, neutralization and other external factors.
Dhruva Narayana Katpady   +4 more
doaj   +1 more source

Through-thickness permeability of woven fabric under increasing air pressure: theoretical framework and simulation

open access: yes, 2017
Many technical applications of woven fabric are subject to increasing high pressure from air transport through the fabric. The through-thickness permeability (TP) of woven materials exhibits a dynamic response to increased air pressure.
Qian, Kun   +4 more
core   +1 more source

The relationship between the porosity of fabric and its permeability to air and water vapour permeability

open access: yes, 2016
Tato předkládaná diplomová práce se zabývá vztahy konstrukčních parametrů tkanin a její propustností pro vzduch a vodní páry. Cílem je nalezení konstrukčních parametrů tkanin, které mají vliv na prodyšnost tkanin a propustnost pro vodní páry a jejich ...
Havlová, Nikola
core   +1 more source

Prediction of functional characteristics of interlock and rib knitted fabrics by the use of 3D computational modelling and analysis [PDF]

open access: yesHemijska Industrija
In this work, a computational model of interlock and rib knitted structures is developed to predict the air permeability and thermal properties of the fabric.
Ali Hassan   +4 more
doaj   +1 more source

Influence of Shrinkage on Air and Water Vapour Permeability of Double-Layered Weft Knitted Fabrics

open access: yesMedžiagotyra, 2012
Water vapour permeability and transport depends on the properties of the fibre and knitted fabric structure. It was designed double-layered fabrics knitted in plain plating pattern whose inner side was  made from synthetic fibres the PES, PA, PP, and ...
Asta BIVAINYTĖ, Daiva MIKUČIONIENĖ
doaj   +1 more source

Impact of Micro- and Nanocellulose Coating on Properties of Wool Fabric by Using Solution Blow Spinning

open access: yesFibers
This study investigates the impact of micro- and nanocellulose coatings on the properties of wool fabrics using the solution blow spinning technique.
Yi Zhang   +2 more
doaj   +1 more source

The Effects of Weft Density, Weft Yarn Count and Weave Type on Air and Water Vapor Permeability in 100% Acrylic Woven Fabrics

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2019
In this study, the effects of weft yarn count, weft density and weave type on the air and water vapor permeability properties of 100% acrylic woven fabrics were examined and evaluated statistically.
Arzu YAVAŞCAOĞLU   +2 more
doaj   +1 more source

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