Results 61 to 70 of about 1,389,297 (254)

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

High-Efficiency Multistage Charge Pump Rectifiers Design

open access: yesEnergies
This paper presents an advanced radio frequency (RF)–direct current (DC) power conversion architecture based on a multistage Cockcroft–Walton topology.
Ying Wang, Ce Wang, Shiwei Dong
doaj   +1 more source

Influence of Refrigerant Charge Amount and EEV Opening on the Performance of a Transcritical CO2 Heat Pump Water Heater

open access: yesEnergies, 2017
Besides compressor rotary speed and parameters of water flowing through gas cooler and evaporator, refrigerant charge amount and electronic expansion valve (EEV) opening are two important parameters that have significant effects on the performance of a ...
Ze Zhang   +4 more
doaj   +1 more source

Management of charge pump circuits

open access: yesIntegration, 2000
Summary: In this paper, a controlling circuit is proposed for the management of charge pump circuits. This is achieved with the use of a pattern generator and a feedback circuit so that the produced high voltage of any given charge pump to be tuned to the desired specifications.
George Kamoulakos   +3 more
openaire   +3 more sources

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

The importance of the knowledge of flow stream in water sump pump [PDF]

open access: yes, 2013
Numerous different experimental and numerical methods have been developed and are already improved in order to get rather good flow descriptions inside pump components. These calculations are generally realized assuming uniform and steady flow conditions,
SIMONET, Sophie   +3 more
core  

Simulation of negative voltage ripples at the output of charge pump system and the microcircuit output of bipolar LM27762 DC–DC converter

open access: yesРоссийский технологический журнал, 2020
The operation of the LM27762 bipolar DC–DC converter chip was simulated using WEBENCH software developed by Texas Instruments. The main attention is paid to the influence of the load current on the negative voltage ripples at the output of the charge ...
V. K. Bityukov   +2 more
doaj   +1 more source

Rotary 3D Printing With Integrated Electroplating

open access: yesAdvanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria   +5 more
wiley   +1 more source

Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pump [PDF]

open access: yes, 2013
Among several different measurement techniques that have been already performed and presented in a radial impeller pump model including PIV, a directional pressure probe has been used to obtain mean velocity field and stagnation pressure between impeller
DAZIN, Antoine   +4 more
core   +1 more source

Drop-in Performance of Low GWP Refrigerants in a Heat Pump System for Residential Applications [PDF]

open access: yes, 2012
R410A is one of the main refrigerants used for air conditioning and heat pump systems in residential applications. It has zero ozone depletion potential but its global warming potential is about 2,000. In China and Japan, refrigerant R32 (GWP = 675, zero
Cremaschi, Lorenzo, Barve, Atharva
core   +1 more source

Home - About - Disclaimer - Privacy