Results 31 to 40 of about 10,282 (219)

120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source

open access: yesIEEE Photonics Journal
High-power, widely tunable 1018 nm single-frequency fiber lasers and their harmonics play a crucial role in Rydberg microwave measurement applications. This study focuses on the development of a high-power 1018 nm single-frequency narrow-linewidth fiber ...
Pan Li   +6 more
doaj   +1 more source

SARS‐CoV‐2 and hypertension

open access: yesPhysiological Reports, 2021
The objective of this review is to give an overview of the pathophysiological effects of the Coronavirus Disease 2019 (COVID‐19) in relation to hypertension (HT), with a focus on the Renin–Angiotensin–Aldosterone System (RAAS) and the MAS receptor. HT is
Briyanth Ravichandran   +5 more
doaj   +1 more source

Bioinformatic analysis of the RNA expression patterns in microgravity-induced bone loss

open access: yesFrontiers in Genetics, 2022
Researchers have linked microgravity in space to the significant imbalance between bone formation and bone resorption that induces persistent bone loss in load-bearing bones.
Xiaoyan Zhang   +11 more
doaj   +1 more source

Micro/nanorobots for detecting and eliminating biological and chemical warfare agents

open access: yesBMEMat, EarlyView.
Fuel‐powered and field‐driven micro/nanorobots provide a cutting‐edge platform to safeguard national security and defense. This review reports the latest research progress in micro/nanorobots in sensing and detoxifying biological and chemical warfare agents.
Song Li   +4 more
wiley   +1 more source

Parameter Design for Inter-Satellite Laser Link Acquisition Under Weak Light Conditions

open access: yesRemote Sensing
For the Taiji program or other LISA-like space-based gravitational wave (GW) detection missions, establishing laser links is a prerequisite for entering the normal science mode.
Mengyang Zhao   +5 more
doaj   +1 more source

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik   +3 more
wiley   +1 more source

Additive manufacturing-induced anisotropy in damping performance of a dual-phase high-entropy alloy

open access: yesJournal of Materials Research and Technology
Additive manufacturing (AM) can endow materials with specific microstructures, inducing anisotropy. In this study, we employed the AM technique to fabricate a dual-phase high-entropy alloy (HEA) and evaluated the damping properties of this alloy cut ...
Yadong Li   +5 more
doaj   +1 more source

Experimental and numerical study on capillary flow along deflectors in plate surface tension tanks in microgravity environment

open access: yesAIP Advances, 2019
Surface tension tanks are the most widely used satellite propellant tanks, which use liquid surface tension for liquid transportation and gas-liquid separation to provide pure propellant for thruster.
Shangtong Chen   +3 more
doaj   +1 more source

Quasi-Periodic Oscillatory Motion of Particles Orbiting a Distorted, Deformed Compact Object

open access: yesUniverse, 2021
This work explores the dynamic properties of test particles surrounding a distorted, deformed compact object. The astrophysical motivation was to choose such a background as to constitute a more reasonable model of a real situation that arises in the ...
Shokoufe Faraji, Audrey Trova
doaj   +1 more source

Recent advances in boosting interfacial bubble dynamics with external fields

open access: yesDroplet, EarlyView.
External physical fields, including acoustic, magnetic, thermal, mechanical, and optical stimuli, accelerate the entire bubble‐dynamics sequence of nucleation, growth, and detachment. Abstract The efficiency of industrial electrocatalytic reactions depends not only on generating gaseous products but also on their detachment from the catalyst surface ...
Wenlu Xie   +5 more
wiley   +1 more source

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