Results 61 to 70 of about 9,912,049 (140)

Mechanisms of Degradation in Li‐Ion Batteries Under Low Temperature Exposures

open access: yesAdvanced Functional Materials, Volume 36, Issue 71, 3 September 2026.
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

open access: yesAdvanced Materials Technologies, Volume 11, Issue 18, 18 September 2026.
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

open access: yesAdvanced Science, Volume 13, Issue 53, 24 September 2026.
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 Bio‐Functional Mimetic Robot for Versatile Tasks From Cross‐Scale Manipulation to Limb‐Tool Integration

open access: yesAdvanced Science, Volume 13, Issue 51, 14 September 2026.
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

Opportunities for Real‐Time Process Control of Electrode Properties in Lithium‐Ion Battery Manufacturing

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
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

A Review of Flow Field and Heat Transfer Characteristics of Jet Impingement From Special‐Shaped Holes

open access: yesEngineering Reports, Volume 8, Issue 9, September 2026.
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

open access: yes, 1968
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  

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

open access: yesHeat Transfer, Volume 55, Issue 6, Page 3495-3522, September 2026.
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

open access: yes, 1968
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]

open access: yes, 2008
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.
core  

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