Results 61 to 70 of about 359,736 (313)
Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts
Science, Engineering and TechnologyHigh-speed turbines are a major source for power production. They utilize high pressure and temperature fluid flow. Sealing of these machines to decrease the flow losses has been a major engineering challenge since the inception of steam turbines.
Nonso Omenife, Dawood Desai, Regan Dunne
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Physica Scripta, 2005 A quantum seal is a way of encoding a message into quantum states, so that anybody may read the message with little error, while authorized verifiers can detect that the seal has been broken. We present a simple extension to the Bechmann-Pasquinucci majority-voting scheme that is impervious to coherent attacks, and further, encompasses sealing quantum ...
Sudhir Kumar Singh, R. Srikanth 0001
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Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
Leakage performance of a novel turbomachinery shaft seal [PDF]
, 2009 Advanced sealing systems are needed to control parasitic leakage flows to achieve high turbine engine efficiency and low emissions. Typical extreme turbomachinery engine operating conditions when combined rotor excursions do not lend simple sealing ...
Akcan, Caner +3 more
core
Advanced Engineering Materials, EarlyView.This study investigates innovative thermoreversible hydrogels derived from S53P4 bioactive glass extracts to aid in the healing of infected diabetic foot wounds. These injectable gels, which gel at body temperature, release beneficial ions and remain stable over time.
Marian G. Vargas Guerrero +9 more
wiley +1 more source
Information and Computation, 2005 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Castagna, Giuseppe +2 more
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Fluid pressure balanced seal [PDF]
, 1966 A seal which increases in effectiveness with increasing pressure is presented. The seal's functional capability throughout both static and dynamic operation makes it particularly useful for sealing ball valve ports. Other features of the seal include the
Marsh, H. W.
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Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies
Advanced Engineering Materials, EarlyView.Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo +3 more
wiley +1 more source
Analysis on the Rapid Voltage Drop Based on a New Air-Cooled PEMFC Stack Design
International Journal of Electrochemical Science, 2019 A new structure called Membrane-Electrode-Assembly-Plate unit with lateral hydrogen tube is developed, which binding the periphery of the anode face of a bipolar plate with the periphery of the anode side of a membrane electrode assembly by using ...
Mingruo Hu, Zhenpeng Li, Guangyi Cao
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THE SACREDNESS OF SOME SEALS AND ITS RELATIONSHIP TO GOD THOTH [PDF]
Journal of the General Union of Arab Archaeologists, 2016 ( En ) Seals played an important role in ancient Egypt. They were not only used as administrative securing devices for the state bureaucracy, private individual, documents, containers, places, but also as amulets during daily life and in the netherworld.
Hayam Rawash
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