Results 61 to 70 of about 102,186 (212)

Smart wireless low power valve positioner dedicated for use in aviation laboratories

open access: yesAviation
Testing aircraft components in laboratories is crucial phase of developing new technologies in aviation. Component testing helps to find design mistakes or check durability and efficiency, which increase safety.
Tomasz Kabala, Jerzy Weremczuk
doaj   +1 more source

New design of electromagnetic valve actuator [PDF]

open access: yes, 2011
Electromagnetic Valvetrains are a developing automotive technology, which promises to increase the efficiency of internal combustion engines. This system allows an internal combustion engine to adjust induction and exhaust behavior during operation ...
Hummel, Thomas
core   +1 more source

Durability of glutaraldehyde-fixed pericardial valve prostheses: clinical and animal experimental studies [PDF]

open access: yes, 1992
Bovine pericardium has been widely employed as a xenograft tissue for the manufacture of bioprosthetic valve substitutes. Early three-leaflet valve models showed poor tissue preservation and shortcomings in valve design, which accounted for tissue wear ...
VALENTE, MARIALUISA   +6 more
core  

Experimental Validation on a New Valve Core of the Throttle Valve in Managed Pressure Drilling

open access: yesAdvances in Mechanical Engineering, 2014
This paper is concerned with experimental investigation of the linear opening-pressure drop ( L −Δ P ) relationship of new valve core in managed pressure drilling (MPD).
G. R. Wang   +5 more
doaj   +1 more source

The thermionic valve and its uses for low powered guitar amplification [PDF]

open access: yes
In accordance with modern day demands for reduced sound pressure levels in recording and live performance situations, this thesis describes researched methods for accurately reproducing the full power ‘valve sound’ at low power.
Aitchison, Michael
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Research of pressure drop and efficiency of new design of valve tray [PDF]

open access: yes, 2014
The article represents a new type of valve tray which is used in tray columns. This type is the result of optimization of the common valve tray. This article includes a design of a new type of the valve tray and experimental results of its efficiency and
Khalil, W., Misiulia, D., Al-Saedi, M.
core  

Design and Transient Flow Characteristics of New Differential Large Flow Safety Valve [PDF]

open access: yesJournal of Applied Fluid Mechanics
This paper presents a novel differential-type high-flow safety valve, with a rated flow and pressure of 3000 L/min and 50 MPa respectively, aimed at enhancing the impact resistance and stability of hydraulic supports.
N. Li   +4 more
doaj   +1 more source

Adaptive design of a 3-2 directional control valve - [PDF]

open access: yes, 2017
Thesis. M.E. American University of Beirut. Department of Mechanical Engineering, 2017. ET:6669Co-Advisor : Prof. Matthias Liermann, PhD, Associate Professor, Mechanical Engineering ; Members of Committee : Prof.
Sleiman, Mohamad Khoder,
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A High Degree of Cleanliness of the Electric Air Supply Valve Design

open access: yesMATEC Web of Conferences, 2018
This paper discuss an new type servo valve, aiming at two main defects of performance of globe valve which are commonly used in mine safety cabins in China, in order to bring up a better solution to replace old valves.
Hu Luo
doaj   +1 more source

Main Characteristics Comparison of Valve Plate of New Design and Direct Valve Plate [PDF]

open access: yes, 2017
Представлена новая конструкция клапанной тарелки. Приведены результаты экспериментальных исследований и сопоставительный анализ основных рабочих характеристик тарелки новой конструкции (эффективность массопередачи, межтарельчатый унос жидкости) и ...
Майтам, Д. Н.
core  

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