Results 91 to 100 of about 4,775,034 (345)

Membrane-Based Characterization of a Gas Component — A Transient Sensor Theory

Sensors, 2014
Based on a multi-gas solution-diffusion problem for a dense symmetrical membrane this paper presents a transient theory of a planar, membrane-based sensor cell for measuring gas from both initial conditions: dynamic and thermodynamic equilibrium.
Detlef Lazik
doaj   +1 more source

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

Discussion of layout position of gas emission warning sensor in heading face

Gong-kuang zidonghua, 2013
For situation that existing mine gas sensor is mainly used for monitoring disasters of gas explosion and gas accumulation, and not for monitoring gas emission characteristics of working face, the paper discussed a kind of layout scheme of gas sensor. The
ZOU Yun-long, DENG Gan-bo, ZHANG Qing-hua, ZHAO Xu-sheng   +3 more
doaj  

A Wireless Safety System for Detecting Gas Leakage in Air Conditioner [PDF]

E3S Web of Conferences
— In this paper, we’ll keep an eye on the air conditioner’s gas leaking. Frequently, a minor gas leak can cause a gas concentration to grow up explosively over time.
Susaritha M., Gokul Chandru S., Anish K.R., Ezhilarasan M.   +3 more
doaj   +1 more source

Operation and Stability of SnO₂ Gas Sensors [PDF]

, 1980
P. Tischer, H. Pink, L. Treitinger
openalex   +1 more source

Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed FeCr(Si)N Stainless Steel

Advanced Engineering Materials, EarlyView.
The alloying element Nitrogen enhances stainless steel strength, corrosion resistance, and stabilizes austenite. This study develops austenitic FeCr(Si)N steel production via powder metallurgy. Fe20Cr and Si3N4 are hot isostatically pressed, creating an austenitic microstructure.
Louis Becker, Felix Radtke, Jonathan Lentz, Santiago Benito, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

Miniaturizing gas sensors combining mid-infrared interband cascade light emitting diodes with substrate-integrated hollow waveguides

AIP Advances
In this study, we report a compact and versatile gas sensor system combining mid-infrared interband cascade light emitting diodes (MIR-ICLEDs) with substrate-integrated hollow waveguides (iHWGs) toward miniaturized gas sensors.
Michael Hlavatsch, Nicolas Schäfer, Robert Weih, Johannes Koeth, Johannes Kunsch, Boris Mizaikoff   +5 more
doaj   +1 more source

Extremely Deformable, Transparent, and High-Performance Gas Sensor Based on Ionic Conductive Hydrogel.

ACS Applied Materials and Interfaces, 2018
Fabrication of stretchable chemical sensors becomes increasingly attractive for emerging wearable applications in environmental monitoring and health care.
Jin Wu, Zixuan Wu, Songjia Han, Bo‐Ru Yang, Xuchun Gui, K. Tao, Chuan Liu, J. Miao, L. Norford   +8 more
semanticscholar   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

Advanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke, Nick Hantke, Harald Zetzener, Jan T. Sehrt, Arno Kwade   +4 more
wiley   +1 more source