Results 61 to 70 of about 9,912,049 (140)
Mechanisms of Degradation in Li‐Ion Batteries Under Low Temperature Exposures
Low‐temperature exposures, or freeze‐thaw cycles, are observed to significantly accelerate the degradation of Li‐ion batteries. A combination of electrolyte phase separation and mechanochemical stress leads to reversible and irreversible performance losses.
Mihir Ojha +12 more
wiley +1 more source
Fabrication of Fibers With Complex Features Using Thermal Drawing of 3D‐Printed Preforms
3D printing enables rapid fabrication of macroscale polymer preforms with complex geometries. Thermal drawing then scales these structures into long fibers while preserving micron‐scale cross‐sectional features. This workflow provides a fast, low‐cost route to functional fibers with tailored geometries and material combinations for catheter, robotic ...
Ali Anil Demircali +4 more
wiley +1 more source
Electrically Tunable Piezotronic Transistor by Coupling Interface Polar Symmetry and Strain Gradient
A macroscale tip‐induced strain gradient generates bulk piezo‐charges in GaN, enabling bias‐controlled shielding and selective Schottky barrier modulation. This strain‐gradient piezotronic transistor exhibits electrically switchable high‐ and low‐sensitivity states, providing ultrahigh strain sensitivity and wide tunability for adaptive mechanical ...
Gongwei Hu +9 more
wiley +1 more source
A functionally biomimetic design methodology is presented, enabling a single robot to perform eight distinct functions and manipulate objects across a size range exceeding 2300‐fold. The robot exceeds basic human hand functions and demonstrates remote operation, multi‐object manipulation, humanoid‐robot hand interaction, and narrow‐space inspection ...
Xin Tong +7 more
wiley +1 more source
The use of online control for the processes that coat electrodes for battery manufacture has the potential to dramatically improve quality and throughput, while reducing the usage of raw materials and energy. This paper highlights some of the benefits and challenges of implementing control on electrode lines.
Noël Hallemans +7 more
wiley +1 more source
Special‐shaped nozzles and nanofluid integration enhance jet impingement cooling by improving heat transfer and thermal uniformity. However, gains are constrained by increased pressure drop and stability challenges, highlighting the need for optimized designs and multiscale modeling to achieve efficient, scalable thermal management.
Md Atiqur Rahman +7 more
wiley +1 more source
Jet Propulsion Laboratory Report SPS-37-52, V. 1
Bimonthly report presenting a review of engineering and scientific work performed, or managed by the Jet Propulsion Laboratory (JPL) for the National Aeronautics and Space Administration during a two-month period (p. iii). This volume presents updates on
Jet Propulsion Laboratory (U.S.)
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ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley +1 more source
Jet Propulsion Laboratory Report SPS-37-51, V. 1
Bimonthly report presenting a review of engineering and scientific work performed, or managed by the Jet Propulsion Laboratory (JPL) for the National Aeronautics and Space Administration during a two-month period (p. iii). This volume presents updates on
Jet Propulsion Laboratory (U.S.)
core
Modelling & integration of advanced propulsion systems [PDF]
This research study focuses on the design of advanced propulsion cycles, having as primary design goal the improvement on noise emissions and fuel consumption.
Doulgeris, Georgios C.
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