Results 131 to 140 of about 24,172 (336)

Cryogenic connector for vacuum use Patent [PDF]

open access: yes, 1967
Leakproof soft metal seal for use in very high vacuum systems operating at cryogenic ...
Kitts, W. T., Platt, P. K.
core   +1 more source

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications

open access: yesAdvanced Materials, EarlyView.
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Chao Hsuan (Joseph) Sung   +15 more
wiley   +1 more source

Aerodynamic instability: A case history [PDF]

open access: yes
The identification, diagnosis, and final correction of complex machinery malfunctions typically require the correlation of many parameters such as mechanical construction, process influence, maintenance history, and vibration response characteristics ...
Eisenmann, R. C.
core   +1 more source

From Pollution to Value: Electrochemical Systems for Transforming Flue Gas into Chemicals and Fuels

open access: yesAdvanced Materials, EarlyView.
This review presents a comprehensive overview of the strategies whereby low‐concentration CO2 in flue gas can be directly valorized to value‐added chemicals and fuels. It covers recent progress in integrated CO2 capture and conversion, including amine and bi(carbonate) reduction‐based systems.
Meng Wang   +7 more
wiley   +1 more source

Design Strategies and Roles of Hydrogels for Sustainable Energy Conversion and Harvesting from Natural and Biological Environments

open access: yesAdvanced Materials, EarlyView.
This review examines hydrogel‐based technologies driven by environmental stimuli and emphasizes their unique contributions to energy conversion. It provides insights into design strategies and recent advancements in functional hydrogels, highlighting opportunities and challenges in this field.
Wanheng Lu   +5 more
wiley   +1 more source

A test fixture for measuring high-temperature hypersonic-engine seal performance [PDF]

open access: yes
A test fixture for measuring the performance of several high temperature engine seal concepts was installed at the NASA Lewis Research Center. The test fixture was developed to evaluate seal concepts under development for advanced hypersonic engines such
Steinetz, Bruce M.
core   +1 more source

Review of Multifunctional Neural Probe

open access: yesAdvanced Materials Interfaces, EarlyView.
Modern multifunctional neural probes for brain‐machine interfaces extend beyond basic electrical functions to incorporate chemical and optical modalities. This review explores recent advances in multifunctional probes developed for neural signal acquisition and stimulation, highlighting how these innovations enhance the precision of brain activity ...
Ziqi Jia, Yong Kyu Yoon
wiley   +1 more source

Design and analysis of a cryogenic variable conductance axial grooved heat pipe [PDF]

open access: yes
An investigation to adapt axial grooved designs to the gammit of heat pipe thermal control techniques, with particular emphasis on those suited for cryogenic applications was conducted.

core   +1 more source

Implantable Microarray Patch: Engineering at the Nano and Macro Scale for Sustained Therapeutic Release via Synthetic Biodegradable Polymers

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This review focuses on the application of synthetic biodegradable microarray patches (MAPs) in sustained drug delivery. Compared to conventional MAPs which release drugs into the skin in an immediate manner, these implantable MAPs release drugs into skin microcirculation gradually as the biodegradable polymers degrade, thus offering sustained release ...
Li Zhao   +6 more
wiley   +1 more source

A Sleeve Alters the Pressure‐Stretch Curve of a Hyperelastic Balloon to Enable Pre‐Programmed Sequencing

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
wiley   +1 more source

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