Results 321 to 330 of about 1,273,058 (405)

THE HEAT OF COMBUSTION OF ERGOSTEROL, ISOERGOSTEROL, AND CHOLESTEROL

open access: hybrid, 1929
Charles E. Bills   +2 more
openalex   +1 more source

Spring and Power in Hovering Ornithopters

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Nanoconfinement‐Induced Electrochemical Ion‐Solvent Cointercalation in Pillared Titanate Host Materials

open access: yesAngewandte Chemie, EarlyView.
Interlayer‐expansion of hydrogen tetratitanate is realized with organic pillars. Optimized atomistic configurations of the pillared materials are proposed by characterization with experiment and simulation. The nanoconfinement modification of HTO induces ion‐solvent cointercalation reactions with improved kinetics and increased storage capacity ...
Mennatalla Elmanzalawy   +8 more
wiley   +2 more sources

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Chemical Bonds Containing Hydrogen: Choices for Hydrogen Carriers and Catalysts

open access: yesAngewandte Chemie, EarlyView.
Hydrogen carriers utilizing B─H, C─H, N─H, and O─H bonds are evaluated for their potential in hydrogen storage and release. Key candidates such as methanol, ammonia, and formic acid are examined with a focus on critical factors influencing performance, including the nature of chemical bonds, reaction pathways, and catalytic processes.
James Cashel   +9 more
wiley   +2 more sources

Electrolyte Chemistry Development for Sodium‐Based Batteries: A Blueprint from Lithium or a Step Toward Originality?

open access: yesAngewandte Chemie, EarlyView.
Unique solvation environment of sodium cations, brought by their larger ion volume and lower charge density, significantly impacts the physicochemical and interfacial properties of sodium‐based electrolytes, highlighting the crucial importance of moving beyond mere mimicry of lithium‐based designs.
Ziyu Song   +12 more
wiley   +2 more sources

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