Results 11 to 20 of about 3,442,617 (168)

On the Estimation of the Dynamic Leak-Tightness of Shaft Seals with Hydrodynamic Sealing Aids through a Hydrodynamic Parameter

open access: yesTribology Online, 2019
Lip seals made of PTFE compound are used due to their high thermal and chemical stability for the sealing of shaft interfaces in housings. For a better dynamic leak-tightness hydrodynamic sealing aids are manufactured on the sealing lip.
Nino Dakov   +3 more
doaj   +1 more source

Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors

open access: yesScientific Reports, 2017
Crack-based strain sensor systems have been known for its high sensitivity, but suffer from the small fracture strain of the thin metal films employed in the sensor which results in its negligible stretchability. Herein, we fabricated a transparent (>90%
Chan-Jae Lee   +6 more
doaj   +1 more source

A Thermodynamic Perspective of Negative-Capacitance Field-Effect Transistors

open access: yesIEEE Journal on Exploratory Solid-State Computational Devices and Circuits, 2017
Physical phenomena, underlying operation of negative capacitance field-effect transistors (NCFETs), are treated within a unified simulation framework. The framework incorporates the Landau mean-field treatment of free energy of a ferroelectric (FE) and ...
Sou-Chi Chang   +3 more
doaj   +1 more source

Effect of Spectral Variability of Aerosol Optical Properties on Direct Aerosol Radiative Effect

open access: yesFrontiers in Remote Sensing, 2022
Aerosol optical properties depend on wavelength as well as both mixing ratios and size distributions of components that make up a particular type of aerosol. This study examines impacts on direct aerosol radiative effect (DARE) for desert, clean maritime,
Seiji Kato   +11 more
doaj   +1 more source

Ride comfort optimization of a multi-axle heavy motorized wheel dump truck based on virtual and real prototype experiment integrated Kriging model

open access: yesAdvances in Mechanical Engineering, 2015
The optimization of hydro-pneumatic suspension parameters of a multi-axle heavy motorized wheel dump truck is carried out based on virtual and real prototype experiment integrated Kriging model in this article.
Bian Gong, Xuexun Guo, Sanbao Hu, Lin Xu
doaj   +1 more source

Equivalent Circuit-Based Open-Circuit Sensitivity Modelling of a Capacitive-Type MEMS Acoustic Sensor on Wafer Level

open access: yesProceedings, 2018
Equivalent circuit-based analytical open-circuit sensitivity modelling of a capacitive-type MEMS acoustic sensor for Internet of things (IoT) application is presented.
Jaewoo Lee   +4 more
doaj   +1 more source

Comprehensive n- and pMOSFET Channel Material Benchmarking and Analysis of CMOS Performance Metrics Considering Quantum Transport and Carrier Scattering Effects

open access: yesIEEE Journal of the Electron Devices Society, 2020
Comprehensive channel material benchmarking for n- and pMOS are performed considering effects of quantum transport and carrier scattering. Various channel material options (Si, InAs, In0.7Ga0.3As, In0.53Ga0.47As, GaAs, and Ge for nMOS, Si and Ge for pMOS)
Raseong Kim, Uygar E. Avci, Ian A. Young
doaj   +1 more source

Damage-induced changes in elastic stiffness of DP800 sheets at large strains [PDF]

open access: yesMATEC Web of Conferences
Damage is associated with the performance of formed components. Quantifying its influence is challenging due to interactions with other product properties such as strain hardening, texture and residual stresses.
Gerlach Jan   +4 more
doaj   +1 more source

Description of the Pumping Rate of Shaft Counterfaces in the Sealing System Radial Lip Seal Using the 3D Parameters of ISO 25178

open access: yesTribology Online, 2016
The sealing system radial lip seal represent a complex tribological system with high requirements to be fulfilled over a long time. The surface texture of shaft counterface has a great influence on the performance of radial lip sealing system.
Cornelius Fehrenbacher   +3 more
doaj   +1 more source

Association of metabolic syndrome with carotid atherosclerosis in low-income Chinese individuals: A population-based study

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundThis study aimed to explore the association of the presence and number of components of metabolic syndrome (MetS) with carotid atherosclerosis by measuring the presence of carotid plaque and total plaque area (TPA) in a population from a low ...
Changqing Zhan   +14 more
doaj   +1 more source

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