Results 51 to 60 of about 75,626 (270)

Design of automatic in and out device of hydraulic support test bench

Gong-kuang zidonghua, 2020
In view of problems of low efficiency of entering and exiting test bench during hydraulic support inspection and prone to injury accidents, an automatic in and out device of hydraulic support test bench was designed. An in and out trolley is driven by an
ZHAO Rui
doaj   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi, Ebrahim Norouzi, Kostiantyn Hubaiev, Jörg Waitelonis, Harald Sack   +4 more
wiley   +1 more source

The impact of European Green Deal on liberal democracy: a perspective through the lens of Hayek’s book "Road to Serfdom" [PDF]

Przegląd Europejski
In his bestseller book The Road to Serfdom, published 80 years ago, F.A. Hayek argued that any form of collectivist governmental planning of the economy not only fails to deliver sustainable prosperity, but also poses a serious threat to democracy.
Jürgen Wandel
doaj   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

Down-Streaming Impact to the Competitiveness of Indonesia Cocoa

Khazanah Sosial
The objective of this paper is to provide qualitative and quantitative analysis on the competitiveness of Indonesia cocoa beans post down-streaming push by the Government of Indonesia.
Irfan Nabhani
doaj   +1 more source

Query Optimization Using Global GIS Evaluation Strategies

Journal of Algorithms & Computational Technology, 2012
With the current scale of mobile GIS users and increase in the applications that are deployed for LBS, the optimization of proximity analysis queries becomes a major issue.
Haifa Elsidani Elariss, Souheil Khaddaj, Darrel Greenhill   +2 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

A Power Quality Enhanced Push-Pull Converter-Based Two-Stage Onboard Charger for Electric Vehicle Applications

IEEE Access
This paper presents an efficient two-stage onboard charger (OBC) using AC-DC converters with improved power quality for electric vehicle (EV) applications.
U. Suprabha Padiyar, R. Kalpana
doaj   +1 more source

Macular hole surgery recovery with and without face-down posturing: a meta-analysis of randomized controlled trials

BMC Ophthalmology, 2019
Background After pars plana vitrectomy with internal limiting membrane (ILM) peeling and gas tamponade, patients are often required to remain in a face-down position (FDP) to allow the gas bubble to push against the macular hole (MH) to promote hole ...
Ting Ye, Ji-guo Yu, Lin Liao, Lan Liu, Ting Xia, Lei-lei Yang   +5 more
doaj   +1 more source