Results 61 to 70 of about 292,725 (364)

PNEUMATIC COMPENSATOR FOR PLUNGER PUMP WITH SUBMERSIBLE LINEAR DRIVE

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2021
The relevance. The authors have developed the design and operation principle of a pneumatic compensator for a plunger pump with a submerged magnetoelectric motor, which allows reducing the amplitude of pressure fluctuations at the pump outlet by ...
Kamil R. Urazakov   +2 more
doaj   +1 more source

Determinants of inspiratory muscle strength in healthy humans [PDF]

open access: yes, 2014
We investigated 1) the relationship between the baseline and inspiratory muscle training (IMT) induced increase in maximal inspiratory pressure (PI,max) and 2) the relative contributions of the inspiratory chest wall muscles and the diaphragm (Poes/Pdi ...
Brown, PI, Johnson, MA, Sharpe, GR
core   +1 more source

Surface Wrinkling of Plasma‐Exposed PDMS is Caused by Water Vapor Sorption: An Optical Environmental Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Wrinkling of soft materials, such as polydimethylsiloxane (PDMS), underpins a myriad of technologies. Plasma‐oxidation of PDMS induces spontaneous wrinkling, which is canonically attributed to thermal expansion‐contraction of bilayers. Employing experiments and modelling, it is demonstrated that sorption of water vapor is instead responsible for ...
Zain Ahmad   +8 more
wiley   +1 more source

Automated evaluation of diaphragm configuration based on chest CT in COPD patients

open access: yesEuropean Radiology Experimental
Background Severe chronic obstructive pulmonary disease (COPD) often results in hyperinflation and flattening of the diaphragm. An automated computed tomography (CT)-based tool for quantifying diaphragm configuration, a biomarker for COPD, was developed ...
Jens T. Bakker   +8 more
doaj   +1 more source

Liquid pump for astronaut cooling [PDF]

open access: yes, 1972
The Apollo portable life support system water-recirculation pump used for astronaut cooling is described. The problems associated with an early centrifugal pump and how these problems were overcome by the use of a new diaphragm pump are discussed ...
Carson, M. A.
core   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

膜片联轴器失效故障树分析

open access: yesJixie chuandong, 2014
The diaphragm is the key component in diaphragm coupling,and its material must be required within high strength,fatigue durability,heat resistance and corrosion resistance.In some harsh conditions,the diaphragm coupling may be fail even scrap.The main ...
黄兴保, 王优强
doaj  

Investigation into diaphragm flexibility using shear wall

open access: yesGrađevinar, 2014
The diaphragm stiffness has a significant influence on the structural responses. Typically engineers assume those diaphragm are rigid. This assumption decreases the degree of freedom and provides easier analysis. But diaphragm damages in past earthquakes,
Mohammad Ahmadi   +2 more
doaj   +1 more source

An Evaluation of the Tribological Characteristics of Diaphragm Plates for High-Pressure Hydrogen Gas Compressor Applications

open access: yesLubricants, 2023
Diaphragm plates, a key part of high-pressure hydrogen gas compressors, are easily cracked or broken due to repeated shape deformations caused by pressure, resulting in increasing difficulties in maintenance. This study aimed to improve the durability of
Sung-Jun Lee   +3 more
doaj   +1 more source

Membrane Fusion‐Inspired Nanomaterials: Emerging Strategies for Infectious Disease and Cancer Diagnostics

open access: yesAdvanced Healthcare Materials, EarlyView.
Membrane fusion‐inspired nanomaterials offer transformative potential in diagnostics by mimicking natural fusion processes to achieve highly sensitive and specific detection of disease biomarkers. This review highlights recent advancements in nanomaterial functionalization strategies, signal amplification systems, and stimuli‐responsive fusion designs,
Sojeong Lee   +9 more
wiley   +1 more source

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