Results 131 to 140 of about 176,817 (335)

Apollo experience report guidance and control systems: Primary guidance, navigation, and control system development [PDF]

open access: yes
The primary guidance, navigation, and control systems for both the lunar module and the command module are described. Development of the Apollo primary guidance systems is traced from adaptation of the Polaris Mark II system through evolution from Block ...
Bachman, S. L.   +5 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

open access: yesAdvanced Materials Technologies, EarlyView.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source

Prototype solar heating and combined heating and cooling systems [PDF]

open access: yes
Designs were completed, hardware was received, and hardware was shipped to two sites. A change was made in the heat pump working fluid.

core   +1 more source

Thermal analysis of a miniature magnetic fluid seal installed in an implantable rotary pump

open access: yesJournal of Magnetism and Magnetic Materials, 2022
Y. Mitamura, I. Nishimura, Tetsuya Yano
semanticscholar   +1 more source

Nitroxide‐Mediated Photo‐Polymerization: A Swiss Army Knife for Microfluidic Design

open access: yesAdvanced Materials Technologies, EarlyView.
This article illustrates the application of NMP2 to the rapid (less than 1 h) photostructuring and sealing of model structures intended for microfluidic applications. Remarkably, the careful design of resin composition allows completing these steps by simply spreading bare monomer (i.e., no added photoinitiator) on top of the bottom layer embedding ...
Carlo Gonzato   +5 more
wiley   +1 more source

Recyclable and Binder‐Free EGaIn–Carbon Liquid Metal Composite: A Sustainable Approach for High‐Performance Stretchable Electronics, Thermal‐Interfacing and EMI‐Shielding

open access: yesAdvanced Materials Technologies, EarlyView.
Binder‐free EGaIn–CB composite deliver printable, recyclable liquid‐metal conductors without sintering or polymer binders. Only 1.5 wt% CB yields shear‐thinning, high‐viscosity rheology, ∼60% bulk EGaIn conductivity, robust stretchability, high thermal conductivity, and strong EMI shielding (35 → 70 dB at 100% strain).
Elahe Parvini   +4 more
wiley   +1 more source

Measurement, testing, and safety technology: A compilation [PDF]

open access: yes
Methods and techniques in the related areas of measurement, testing, and safety are presented. Measuring techniques and devices and testing methods and devices are described. Articles on equipment modifications or procedures are included.

core   +1 more source

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