Results 81 to 90 of about 193,257 (302)

Current flow in a plasma caused by dielectric breakdown [PDF]

Spacecraft with a thin dielectric coating on the outer surface of the structure which are biased (-200 V) negative relative to the atmospheric plasma are susceptible to dielectric breakdown.
Carruth, M. R., Jr., Gray, P. A., Vaughn, J. A.   +2 more
core   +1 more source

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

Advanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno, Qiangrui Dong, Marco Post, Xin Meng, Cristiano Glessi, Nynke Marije Hettema, Nidas Brandsma, Sebbe Blokhuizen, Alejandro Castañeda Garcia, Srividya Ganapathy, Thieme Schmidt, Lars van Roemburg, Bing Xu, Chun‐Ting Cho, Liedewij Laan, Miao‐Ping Chien, Daan Brinks   +16 more
wiley   +1 more source

Influence of Plasma Jet Temperature Profiles in Arc Discharge Methods of Carbon Nanotubes Synthesis

Nanomaterials, 2017
One of the most common methods of carbon nanotubes (CNTs) synthesis is application of an electric-arc plasma. However, the final product in the form of cathode deposit is composed of carbon nanotubes and a variety of carbon impurities. An assay of carbon
Grzegorz Raniszewski, Slawomir Wiak, Lukasz Pietrzak, Lukasz Szymanski, Zbigniew Kolacinski   +4 more
doaj   +1 more source

Human Pancreas GH-Releasing Factor Analog Restores High-Amplitude GH Pulses in CNS Lesion-Induced GH Deficiency [PDF]

, 1983
Lesions of the ventromedial-arcuate (VMH-ARC) region of the hypothalamus result in impaired growth accompanied by a marked suppression in spontaneous GH secretory bursts. We studied the effects of an analog of the recently characterized human pancreas GH-
Eikelboom, Rudy, Ling, Nicholas, Schaffer Tannenbaum, Gloria   +2 more
core   +2 more sources

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Numerical analysis of physical behavior of hot-wire plasma arc with bypass current

Hanjie xuebao
The hot-wire plasma arc with bypass current has been successfully applied to the welding and additive manufacturing of metallic materials with its high wire melting efficiency and good energy regulation mechanism.
Ziran WANG, Yugang MIAO, Guangxu HU, Chenhao YIN, Yuyang ZHAO, Qingwen DENG   +5 more
doaj   +1 more source

Mechanism and Energy Efficiency Evaluation of Closed-Loop Shock Wave Control Using Arc Plasma

气体物理
Plasma actuators have received extensive attention for active flow control due to their advantages of quick response and operational flexibility. The aerodynamic, thermal and chemical effects of the plasma play a dominant role in flow control.
Hong YAN, Mu LI, Fan LIU
doaj   +1 more source

Modeling of mixing and interaction of multi-cathode spot vacuum arc jets

AIP Advances, 2016
Vacuum arc consists of cathode spot and mixing zone, arc column and anode zone. The separate jets and the mixing zone should be considered in the model of diffuse arc.
Lijun Wang, Kang Qin, Jie Deng, Shenli Jia   +3 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

High-friction mechanical grips [PDF]

, 1973
Plasma-arc spraying offers method of preparing required surface at greatly reduced cost. Coarse-grained, tungsten carbide bonded-nickel coating is applied by spraying.
Stevens, E. G.
core   +1 more source