Results 21 to 30 of about 31,368 (262)

Low-Cost System with Transient Reduction for Automatic Power Factor Controller in Three-Phase Low-Voltage Installations

Energies
In power engineering, the importance of maintaining a high power factor in low-voltage electrical installations is known. In power substations for industry, the usual method of coupling is to use an automatic power factor controller which connects ...
Gabriel Nicolae Popa, Corina Maria Diniș   +1 more
doaj   +1 more source

The Relevance of Financial Statements in the Industrial Revolution 4.0 Era

Binus Business Review, 2021
The emergence of Industrial Revolution 4.0 has a significant impact on the business processes. It is also expected to change the characteristics of the needed accounting information.
Haryani Chandra, Chandra Ferdinand Wijaya   +1 more
doaj   +1 more source

Blockchain security enhancement: an approach towards hybrid consensus algorithms and machine learning techniques

Scientific Reports
In this paper, we propose hybrid consensus algorithms that combine machine learning (ML) techniques to address the challenges and vulnerabilities in blockchain networks.
K. Venkatesan, Syarifah Bahiyah Rahayu
doaj   +1 more source

About the Aged Degradation of the Materials Used for Medium-Voltage Distributors

Energies
The medium-voltage components in the ignition installations for gasoline engines contain electroinsulating materials that lose their properties over time.
Gabriel Nicolae Popa, Dimitar Aleksiev Nikolov, Corina Maria Diniș   +2 more
doaj   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Identifying and Prioritizing the Basis of Entrepreneurial University Using Meta-Synthesis and Group Analytic Hierarchy Process for Iranian Universities [PDF]

پژوهش در نظام‌های آموزشی, 2020
The purpose of this study is to identify and prioritize the components of the entrepreneurial university. In this research, in order to summarize and aggregate the findings of previous researches, the meta-synthesis method has been used.
Ali Akbar Akbari, sayed jalal musavi, Hamidreza esmaely Givi   +2 more
doaj  

Emerging Business Opportunities Based-On Venture Capital Investment Data in the Fourth Industrial Revolution

IEEE Access, 2020
This study aims to propose a methodology for identifying new business opportunities in the fourth industrial revolution. The methodology uses the co-word network analysis approach to analyze the network centralities of keywords of the fourth industrial ...
Sungjin Kim, Yunjeong Choi, Suchul Lee
doaj   +1 more source

Entrepreneurship, Knowledge, and the Industrial Revolution [PDF]

Economics, 2015
Abstract This paper constructs a two-sector unified growth model. Learning-by-doing in agriculture eventually allows the preindustrial economy to leave its Malthusian trap. But entrepreneurs in the manufacturing sector do not attempt invention if not much is known about natural phenomena. This delays the industrial revolution.
openaire   +7 more sources

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

The Dirt Deposited on the Medium-Voltage Insulators Used in the Plasma Reactor and the Cylinder-Type Electrostatic Precipitator

Applied Sciences
The plasma reactor and cylindrical-type electrostatic precipitator (PRESP), combined operation in one device, made in the metallic chimney of low-thermal power boilers (up to 50 kW) that burn wood, can be used in home applications.
Gabriel Nicolae Popa
doaj   +1 more source