Results 131 to 140 of about 1,866 (265)

AstroOphthalmology: Basic and Pathophysiological Concepts of Space-Induced Ocular Changes. [PDF]

open access: yesEye Brain
Cheraqpour K   +7 more
europepmc   +1 more source

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

open access: yesAdvanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng   +7 more
wiley   +1 more source

Surgery should not hurt: A look into the ergonomics of orthopedics. [PDF]

open access: yesBull Hosp Jt Dis (2013)
DeClouette B, Nwakoby E, Golant A.
europepmc   +1 more source

An Operational Verification Suite for a Capacity-Field Gravity Readout: Dual-Engine Poisson-Bridge Gates, Relativity Coherence Checks, and REG Micro-Audits

open access: yes
This record contains Version 2.0 of The Spectral Geometry of Coherence, Volume Two, Part Three. The paper presents an operational verification suite for a minimal bridge from a source proxy into a scalar capacity field whose weak-field readout resembles a gravitational potential.
openaire   +1 more source

Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures

open access: yesAdvanced Science, EarlyView.
Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu   +4 more
wiley   +1 more source

Virtual Presence: One Step Beyond Reality

open access: yes, 1997
Our primary objective was to team up a group consisting of scientists and engineers from two different NASA cultures, and simulate an interactive teleoperated robot conducting geologic field work on the Moon or Mars.
Budden, Nancy Ann
core  

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

open access: yesAdvanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan   +4 more
wiley   +1 more source

Preliminary considerations for accessible space missions for all. [PDF]

open access: yesNPJ Microgravity
Di Giulio I   +10 more
europepmc   +1 more source

W‐N‐C Tandem Catalytic Centers Mediating Efficient Charge Transfer for the Enhanced Radical‐Path U(VI) Photoreduction

open access: yesAdvanced Science, EarlyView.
This work constructed a tandem W−N−C center to simultaneously achieve the regulation of reaction pathways and optimization of charge separation efficiency. The Lewis‐acidic W6+ sites activated O2 to generate O2−$O_2^ - $, with enhanced charge separation via electronic modulation, steering U(VI) reduction down an efficient radical pathway.
Zhiyao Wu   +11 more
wiley   +1 more source

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