Results 241 to 250 of about 495,484 (410)

Lewis acid‐driven interlayer shifting in sub‐nm 2D covalent organic framework membranes for hydrogen purification

AIChE Journal, EarlyView.
Abstract Covalent organic framework (COF) membranes are promising for eco‐friendly separations, but precise control of pore size at the angstrom level has been challenging, limiting their application in gas separation. This study introduces a pore redistribution method to reduce pore size to the sub‐nanometer range in single‐phase COF membranes.
Li Chen, Cailong Zhou, Fan Feng, Yuewen Jia, Lichun Dong, Sui Zhang   +5 more
wiley   +1 more source

Discussion: “Hydraulic Couplings for Internal-Combustion-Engine Applications” (Alison, N. L., Olson, R. G., and Nelden, R. M., 1941, Trans. ASME, 63, pp. 81–89) [PDF]

, 1941
Austin Kuhns
openalex   +1 more source

Large Eddy Simulation of Pre-Chamber Ignition in an Internal Combustion Engine

Flow Turbulence and Combustion, 2019
Q. Malé, G. Staffelbach, O. Vermorel, A. Misdariis, F. Ravet, T. Poinsot   +5 more
semanticscholar   +1 more source

Spring and Power in Hovering Ornithopters

Advanced Intelligent Systems, EarlyView.
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau, Yao‐Wei Chin, Shih‐Chun Lin, Yu‐Hsiang Lai, Boo Cheong Khoo   +4 more
wiley   +1 more source

Presidential Address: The Internal Combustion Engine as a Factor in National Progress.

, 1914
Percy L. Weston
openalex   +2 more sources

Advances in 3D and 4D Printing of Soft Robotics and Their Applications

Advanced Intelligent Systems, EarlyView.
This article summarizes the development of 3D‐printed soft robotics in the recent decade. The article discusses the printing capabilities of different additive manufacturing technologies in terms of soft polymers, multimaterial printability, soft robotic printing, and 4D printing.
Hao Liu, Changchun Wu, Senyuan Lin, James Lam, Ning Xi, Yonghua Chen   +5 more
wiley   +1 more source

Assessment of the Corrosion Resistance of Thermal Barrier Coatings on Internal Combustion Engine Components. [PDF]

Materials (Basel)
Chicet DL, Juhasz J, Cotruț CM, Istrate B, Munteanu C.   +4 more
europepmc   +1 more source

Diamond Chemistry: Advances and Perspectives

Angewandte Chemie International Edition, Accepted Article.
Diamond as a material has many unique properties. More recently, diamond has emerged as a material with a wide range of applications in chemistry and biology. The high intrinsic stability of diamond, coupled with the ability to modify diamond surfaces with a wide range of species via highly stable covalent linkages, provides a wealth of opportunity to ...
Nianjun Yang, Anke Krueger, Robert J. Hamers   +2 more
wiley   +1 more source

Efficiency Analysis of Powertrain for Internal Combustion Engine and Hydrogen Fuel Cell Tractor According to Agricultural Operations. [PDF]

Sensors (Basel)
Jeon HH, Baek SY, Baek SM, Choi JY, Kim YS, Kim WS, Kim YJ.   +6 more
europepmc   +1 more source

Assessing the efficiency of ethyl acetate for lipid extraction as an alternative to the Folch method in selected marine low‐trophic species

Journal of the American Oil Chemists' Society, EarlyView.
The EtOAc method offers a straightforward and environmentally friendly protocol for lipid extraction, showing efficiency comparable to the Folch method, particularly in extracting lipids with high proportions of neutral lipids and free fatty acids. Abstract The recognized health benefits associated with marine omega‐3 polyunsaturated fatty acids (PUFAs)
Ying Wang, Karl‐Erik Eilertsen, Edel Oddny Elvevoll, Mari Johannessen Walquist   +3 more
wiley   +1 more source