Results 171 to 180 of about 10,164 (305)

Apollo experience report: Development of the extravehicular mobility unit [PDF]

open access: yes
The development and performance history of the Apollo extravehicular mobility unit and its major subsystems is described. The three major subsystems, the pressure garment assembly, the portable life-support system, and the oxygen purge system, are ...
Carson, M. A.   +3 more
core   +1 more source

Flexible Memory: Progress, Challenges, and Opportunities

open access: yesAdvanced Intelligent Discovery, EarlyView.
Flexible memory technology is crucial for flexible electronics integration. This review covers its historical evolution, evaluates rigid systems, proposes a flexible memory framework based on multiple mechanisms, stresses material design's role, presents a coupling model for performance optimization, and points out future directions.
Ruizhi Yuan   +5 more
wiley   +1 more source

Visualizing and Quantifying microRNA‐Induced DNA Origami Separation at the Nanoscale

open access: yesAngewandte Chemie, EarlyView.
Clinically relevant miRNA biomarkers trigger the disassembly of DNA origami dimers into monomers through a toehold‐mediated strand displacement reaction. High‐speed AFM was used to visualize this reaction in real time, while solid‐state nanopore measurements quantified the populations of dimers and monomers, as well as the resulting miRNA concentration,
Chalmers C. C. Chau   +4 more
wiley   +2 more sources

A low-cost device for cryoanesthesia of neonatal rodents. [PDF]

open access: yesHardwareX, 2023
Jamieson BB   +6 more
europepmc   +1 more source

The 25 kWe solar thermal Stirling hydraulic engine system: Conceptual design [PDF]

open access: yes
The conceptual design and analysis of a solar thermal free-piston Stirling hydraulic engine system designed to deliver 25 kWe when coupled to a 11 meter test bed concentrator is documented.
Emigh, Grant   +4 more
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

COVOX: Providing oxygen during the COVID-19 health emergency. [PDF]

open access: yesHardwareX, 2023
Rubio J   +8 more
europepmc   +1 more source

Effluent characterization from a conical pressurized fluid bed [PDF]

open access: yes
To obtain useable corrosion and erosion results it was necessary to have data with several levels of particulate matter in the hot gases. One level of particulate loading was as low as possible so that ideally no erosion and only corrosion occurred.
Patch, R. W.   +2 more
core   +1 more source

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