Results 61 to 70 of about 236,785 (305)

Endoscopic hemostasis in the ulcer gastro-duodenal hemorrhage, using high-frequency biological welding electro-ligature

Клінічна хірургія, 2020
Objective. To improve the efficacy of endoscopic hemostasis for the ulcer gastro-duodenal hemorrhage, using high-frequency biological welding electro-ligature. Materials and methods.
Ya. P. Feleshtynskyi, S. O. Oparin, B. V. Sorokin, M. G. Boiarska, D. V. Lutsenko   +4 more
doaj   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Thermal Characteristic and Analysis of Electro-Hydrostatic Actuator

IEEE Access
Electro-hydrostatic actuators (EHAs) are widely utilized due to their superior integration and high power-to-weight ratio. However, the elimination of a centralized oil source in EHAs restricts the cooling capacity of the system, leading to potential ...
Jiahui Liu, Hao Huang, Yaowen Ge, Xiaoli Zhao, Wenxiang Deng, Guangfa Gao, Jianyong Yao   +6 more
doaj   +1 more source

Design and Modeling of Micromechanical GaAs based Hot Plate for Gas Sensors [PDF]

, 2007
For modern Gas sensors, high sensitivity and low power are expected. This paper discusses design, simulation and fabrication of new Micromachined Thermal Converters (MTCs) based on GaAs developed for Gas sensors. Metal oxide gas sensors generally work in
Drzik, M., Husak, M., Jakovenko, J., Lalinskytfh, T., Vanko, G.   +4 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

A High Precision and Multifunctional Electro-Optical Conversion Efficiency Measurement System for Metamaterial-Based Thermal Emitters

Sensors, 2022
In this study, a multifunctional high-vacuum system was established to measure the electro-optical conversion efficiency of metamaterial-based thermal emitters with built-in heaters.
Heng Liu, Meng Zhao, Yongkang Gong, Kang Li, Cong Wang, Yuchen Wei, Jun Wang, Guozhen Liu, Jinlei Yao, Ying Li, Zheyi Li, Zhiqiang Gao, Ju Gao   +12 more
doaj   +1 more source

Study of First-Order Thermal Sigma-Delta Architecture for Convective Accelerometers

, 2008
This paper presents the study of an original closed-loop conditioning approach for fully-integrated convective inertial sensors. The method is applied to an accelerometer manufactured on a standard CMOS technology using an auto-aligned bulk etching step.
Latorre, Laurent, Mailly, Frédérick, Nouet, Pascal, Nouet, Pascal   +3 more
core   +4 more sources

Magnetohydrodynamics of Chiral Relativistic Fluids [PDF]

, 2015
We study the dynamics of a plasma of charged relativistic fermions at very high temperature $T\gg m$, where $m$ is the fermion mass, coupled to the electromagnetic field.
Boyarsky, Alexey, Frohlich, Jurg, Ruchayskiy, Oleg   +2 more
core   +3 more sources

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Entropy Analysis in Double-Diffusive Convection in Nanofluids through Electro-Osmotically Induced Peristaltic Microchannel

Entropy, 2019
A theoretical study is presented to examine entropy generation in double-diffusive convection in an Electro-osmotic flow (EOF) of nanofluids via a peristaltic microchannel.
Saima Noreen, Sadia Waheed, Abid Hussanan, Dianchen Lu   +3 more
doaj   +1 more source