Results 81 to 90 of about 99,114 (312)
Diyala Journal of Engineering Sciences, 2015 Emissions of carbon dioxide CO2 from power plant stations have direct effect on global climate change through increasing the average temperature which then threat the human life.
Heba S. Auob
doaj
High pressure helium purifier Patent [PDF]
, 1968 Apparatus and method capable of receiving large quantity of high pressure helium, removing impurities, and discharging at received ...
Hauser, J. A.
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Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals
Advanced Functional Materials, EarlyView.This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee +4 more
wiley +1 more source
EnergiesA flow cell is a critical measurement interface for many optical instruments. However, the flows are often sampled under harsh conditions, such as under high pressure and/or high temperature, in the presence of particles, moisture, vapors with high dew ...
Mao Cheng +3 more
doaj +1 more source
Multimodal Structural Color Graphics Based on Colloidal Photonic Microdome Arrays
Advanced Functional Materials, EarlyView.A hybrid photonic system combining colloidal crystals and microscale domes is designed to achieve four switchable optical states via the interplay of Bragg reflection and TIR interference. The graphics composed of the photonic microdome arrays provide tunable, angle‐sensitive structural coloration and concealed‐to‐revealed transitions, offering a ...
Jun‐Gu Kang +4 more
wiley +1 more source
Thermal and structural assessments of a ceramic wafer seal in hypersonic engines [PDF]
The thermal and structural performances of a ceramic wafer seal in a simulated hypersonic engine environment are numerically assessed. The effects of aerodynamic heating, surface contact conductance between the seal and its adjacent surfaces, flow of ...
Steinetz, Bruce M., Tong, Mike T.
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Hazardous Gas Leak Analysis in the Space Shuttle [PDF]
, 1991 Helium tests of the main propulsion system in the Space Shuttle and on hydrogen leaks are examined. The hazardous gas detection system (HGDS) in the mobile launch pad uses mass spectrometers (MS) to monitor the shuttle environment for leaks.
Barile, Ronald G.
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Advanced Functional Materials, EarlyView.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source
Toward a Better Air-Assisted Flare Design for Safe and Efficient Operation during Purge Flow Conditions: Designing and Performance Testing. [PDF]
ACS Omega, 2022 Alhameedi HA, Smith JD, Ani P, Powley T.
europepmc +1 more source
Experimental investigation of contamination prevention techniques to cryogenic surfaces on board orbiting spacecraft [PDF]
Within the simulation limitations of on-orbit conditions, it was demonstrated that a helium purge system could be an effective method for reducing the incoming flux of contaminant species.
Froechtenigt, J. F. +3 more
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