Results 91 to 100 of about 345,672 (330)

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Design of Fission Chamber Pulse Pre-amplifier

Journal of Isotopes
Fission chambers are installed in the measurement channels within the reactor and the signals are transmitted via inorganic and organic cables. They can be used for monitoring the neutron flux of the reactor from startup to full power operation.
Xinyi HUANG, Fangdong YANG, Yang LIU, Jiangbin ZHAO, Haifeng LIU, Chenyang TANG, Jiayu SUN, Zhan LIU, Gaokui HE   +8 more
doaj   +1 more source

Nutritional Status Assessment During the Phase IIA and Phase III Lunar/Mars Life Support Test Project [PDF]

, 2000
Nutrition is a critical concern for extended-duration space missions (Smith and Lane, 1999). Loss of body weight is a primary consequence of altered nutrition, and is frequently observed during space flight (Smith and Lane; 1999).
Block, Gladys, Davis-Street, Janis E., DeKerlegand, Diane E., Fanselow, Stephanie A., Fesperman, J. Vernell, Gillman, Patricia L., Nillen, Jeannie I., Rice, Barbara L., Smith, Myra D., Smith, Scott M.   +9 more
core   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Measurement of methane emission from sheep by the sulphur hexafluoride tracer technique and by the calorimetric chamber: failure and success

Animal, 2008
The aim of this study was to evaluate the sulphur hexafluoride (SF6) tracer technique for methane (CH4) emission measurement in sheep. Ten cryptorchid Romney sheep were involved in two indoor trials (T1 and T2), where daily CH4 emissions were ...
C.S. Pinares-Patiño, C.W. Holmes, K.R. Lassey, M.J. Ulyatt   +3 more
doaj   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Study on combustion and emissions of methanol engines based on active pre-chamber jet ignition technology

Case Studies in Thermal Engineering
Against the backdrop of the ''dual carbon'' goals, this study addressed the challenges of narrow lean-burn limits and low thermal efficiency in conventional spark-ignition (SI) methanol engines by proposing the active pre-chamber jet ignition (APCH-JI ...
Yafeng Ren, Hong Jia, Jiaxin Qin, Qisheng Zhang, Jinyan Du   +4 more
doaj   +1 more source

Pressure-induced Insulator to Metal Transition of Mixed Valence Compound Ce(O,F)SbS$_{2}$

, 2018
Transport properties of Ce$_{0.85}$F0.15SbS$_{2}$ and undoped CeOSbS$_{2}$ under high pressure were investigated experimentally and theoretically. Electrical resistivity measurements of the Ce$_{0.85}$F0.15SbS$_{2}$ single crystals were performed under ...
Adachi, Shintaro, Hara, Hiroshi, Irifune, Tetsuo, Kuroki, Kazuhiko, Matsumoto, Ryo, Murakami, Ryo, Nagao, Masanori, Nakamura, Kazuki, Ochi, Masayuki, Takano, Yoshihiko, Takeya, Hiroyuki, Tanaka, Hiromi, Tanaka, Isao, Yamamoto, Sayaka   +13 more
core   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Vacuum chamber considerations for improved organic light-emitting diode lifetime

AIP Advances, 2018
We investigated the influence of vacuum chamber impurities on the lifetime of highly efficient TADF-based OLEDs. Batch-to-batch lifetime variations are clearly correlated with the results of contact angle measurements, which reflect the amount of ...
Hiroshi Fujimoto, Shin-ichiro Kobayashi, Hin Wai Mo, Satoshi Yukiwaki, Kaori Nagayoshi, Mao Yasumatsu, Kentaro Harada, Chihaya Adachi   +7 more
doaj   +1 more source