Results 91 to 100 of about 2,323,028 (381)

High Dynamic Range Thin‐Film Resistive Flow Sensors for Monitoring Diverse Biofluids

open access: yesAdvanced Functional Materials, EarlyView.
Thin‐film resistive flow sensors with thermoresistive and piezoresistive mechanisms are developed for biofluid monitoring. Fabricated using biocompatible materials and laser micromachining, the devices achieve sub‐millimeter dimensions and a broad dynamic range.
Latifah Almulla   +2 more
wiley   +1 more source

Development of a stand for measuring thrust of micro-jet thrusters based on machine vision [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
In the presented work, the issues of measuring the thrust force of spacecraft thrusters are considered. A program for determining the thrust force based on machine vision has been developed.
V. V. Fedyanin   +3 more
doaj   +1 more source

A 20000-hour endurance test of a structurally and thermally integrated 5-cm diameter ion thruster main cathode [PDF]

open access: yes
A 5-cm diameter mercury ion thruster main cathode has completed over 20,000 hours of operation in an ongoing lifetime endurance test. The cathode operating parameters remained at acceptable performance levels throughout the test, the first 9175 hours of ...
Wintucky, E. G.
core   +1 more source

3D Bioinspired Hair‐Based Solar Evaporator for Efficient Water Harvesting

open access: yesAdvanced Functional Materials, EarlyView.
A bio‐derived solar evaporator inspired by blackbody radiation is developed using human hair waste. The vertically aligned hair structure enables broadband light absorption, efficient thermal localization, and rapid water transport, achieving high evaporation rates and stable desalination performance.
Yi Liu   +10 more
wiley   +1 more source

Electric propulsion options for the SP-100 reference mission [PDF]

open access: yes
Analyses were performed to characterize and compare electric propulsion systems for use on a space flight demonstration of the SP-100 nuclear power system.
Hardy, T. L.   +2 more
core   +1 more source

Design and Preliminary Testing Plan of Electronegative Ion Thruster [PDF]

open access: yes, 2014
Electronegative ion thrusters are a new iteration of existing gridded ion thruster technology differentiated by their ability to produce and accelerate both positive and negative ions.
Aanesland   +8 more
core   +4 more sources

Liquid‐Locked Bassanites for Scalable Fabrication of High‐Temperature Micro‐Supercapacitors Working at 300 °C

open access: yesAdvanced Functional Materials, EarlyView.
A “liquid locking” strategy is proposed and implemented for scalable printing of crack‐free bassanite ceramic frameworks with interlocking microstructures to host ionic liquids as effective electrolytes for high‐temperature micro‐supercapacitors (HT‐MSCs).
Shiqian Chen   +7 more
wiley   +1 more source

Thrust density characteristics of ion thruster

open access: yesActa Physica Sinica, 2018
Thrust density distribution of ion thruster is an important factor that affects the orbit correction and station keeping of the spacecraft. Current empirical models mainly concern themselves with the overall thrust of the ion thruster, yet the thrust density distribution has not been fully understood.
Zhang Tianping   +5 more
openaire   +1 more source

Recent work on an RF ion thruster [PDF]

open access: yes
An experimental investigation of an rf ion thruster using an immersed coupler in an argon discharge is reported. The conical coil, used to couple rf power into the discharge, is placed inside the discharge vessel.
Lee, R. Q., Nakanishi, S.
core   +1 more source

Biosupercapacitors for Human‐Powered Electronics

open access: yesAdvanced Functional Materials, EarlyView.
Biosupercapacitors are emerging as biocompatible and integrative energy systems for next‐generation bioelectronics, offering rapid charge–discharge performance and mechanical adaptability. This review systematically categorizes their applications from external to organ‐level systems and highlights their multifunctional roles in sensing, actuation, and ...
Suhyeon Kim   +7 more
wiley   +1 more source

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