Results 21 to 30 of about 23,648 (228)

Emergency escape system Patent [PDF]

open access: yes, 1966
Emergency escape cabin system for launch ...
Offik, W. G.
core   +1 more source

Interstitial N‐Strengthened Copper‐Based Bioactive Conductive Dressings Combined with Electromagnetic Fields for Enhanced Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
This study developed a nitrogen‐strengthened copper‐iron‐zinc (N‐CuFeZn) alloy bioactive dressing integrated with electromagnetic stimulation. The coaxial dressing, made from 0.04 mm filaments with 1120 MPa tensile strength, showed that electromagnetic activation enhanced therapeutic outcomes by increasing VEGF expression, promoting angiogenesis (2.1 ...
Xiaohui Qiu   +9 more
wiley   +1 more source

Towards robust aero-thermodynamic predictions for re-usable single-stage to orbit vehicles [PDF]

open access: yes, 2012
Re-usable single stage to orbit launch vehicles promise to reduce the cost of access to space, but their success will be particularly reliant on accurate and robust modelling of their aero-thermodynamic characteristics.
Anderson J.D.   +7 more
core   +1 more source

Aramid Nanofiber Aerogels: Preparation, Modification, Composite Fabrication, and Applications

open access: yesAdvanced Materials, EarlyView.
Different forms of aramid nanofibers (ANFs) and especially aerogels from them, offer a sustainable route to high‐performance biomimetic nanocomposites. Due to the cartilage‐like architecture, ANF‐based materials enable breakthroughs in energy, electromagnetic, biomedical, and water purification technologies.
Mingqiang Wang   +9 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Assessment of the feasible CTA windows for efficient spacing with energy-neutral CDO [PDF]

open access: yes, 2016
Continuous descent operations (CDO) with con- trolled times of arrival (CTA) at one or several metering fixes could enable environmentally friendly procedures at the same time that terminal airspace capacity is not ...
Dalmau Codina, Ramon   +1 more
core  

Interference Pattern Caused by Bilateral Bone Conduction Stimulation Impairs Sound Localization

open access: yesAdvanced Science, EarlyView.
This work explores how crosstalk‐induced wave interference affects bone conduction (BC) sound localization. Using a theoretical model, cadaveric vibrometry, and psychoacoustic tests, atypical BC lateralization patterns are revealed that contradict air conduction (AC) principles.
Liu‐Jie Ren   +7 more
wiley   +1 more source

Aircraft control system [PDF]

open access: yes, 1973
An aircraft control system is described which is particularly suited to rotary wing aircraft. Longitudinal acceleration and course rate commands are derived from a manual control stick to control translational velocity of the aircraft along a flight path.
Koziol, J. S., Jr.   +3 more
core   +1 more source

3D Brain Vascular Niche Model Captures Glioblastoma Infiltration, Dormancy, and Gene Signatures

open access: yesAdvanced Science, EarlyView.
This study developed a 3D brain vascular niche model that capture the key features of glioblastoma including perivascular infiltration, gene signature, dormancy and chemo resistance, by comparing 3D model with in vivo condition using identical glioma stem cells.
Vivian K. Lee   +10 more
wiley   +1 more source

Microstructural Origin of Nonmonotonic Piezoresistivity in Polymer Nanocomposites

open access: yesAdvanced Science, EarlyView.
When polymer nanocomposites are subjected to tensile loading, the electrical resistance‐strain relationship may be nonmonotonic, hampering the use of these materials in real‐world applications. This challenge is addressed through the collaborative use of physical experimentation and computer simulations, establishing the inter‐nanotube junction ...
Ting Yui Wong   +3 more
wiley   +1 more source

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