Results 121 to 130 of about 373,709 (298)

Historical trajectory, current status, and future challenges of powder engines and propellant supply technologies: A comprehensive review

Defence Technology
Powder engine as a novel type of engine using high-energy metal powder as fuel and gas, liquid, or solid as oxidizer. These engines exhibit remarkable adaptability, flexible thrust regulation, and multi-pulse start-stop, which have significant ...
Guanlong Ren, Haijun Sun, Chunbo Hu, Yuxin Yang, Chao Li, Yihua Xu, Rui Xue, Xiaoan Hu   +7 more
doaj   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Mercury Wetting and Non-wetting Condensing Research [PDF]

, 1963
Mercury wetting and non-wetting ...
Gido, R. G., Koestel, A.
core   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Research on Small-scale Neutron Detection Technology of Deposition Source Term for Dry Reprocessing Pipeline

Yuanzineng kexue jishu
In accordance with China’s “three-step” strategy for nuclear energy development, establishing mature commercial fast reactors and fast reactor spent fuel reprocessing technology is a must for the “second step” of China’s nuclear energy development.
GUO Luzhen, WANG Chuangao, WANG Ying, GUO Jinsen, PANG Hongchao, LUO Zhiping
doaj   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Wetting Characteristics of Alkali Metal Sodium on Wire Mesh Wicks in High-temperature Heat Pipes

Yuanzineng kexue jishu
With their compact structure, high reliability, and inherent safety, heat pipe reactors demonstrate significant potential in energy supply for deep-space, deep-sea, and remote island applications.
TANG Songsheng1, GUO Kailun1, TIAN Shiyu1, SUN Qishi1, WANG Mingjun1, ZHANG Dalin1, WANG Chenglong1, MA Yugao2, TIAN Wenxi1, QIU Suizheng1
doaj   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Growth Toxic Effects of Metal Nanoparticles on Bacillus subtilis and Vibrio parahaemolyticus

Progress in Fishery Sciences
Metal nanoparticles have been widely used in ceramics, the chemical industry, communication, and biomedicine because of their large specific surface area, small size, good photoelectric performance, and other excellent physical and chemical properties ...
Shiyu CHEN, Bin XIA, Lin ZHU, Shuang LI, Qiufen LI, Xuemei SUN, Wei DAI   +6 more
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source