Results 21 to 30 of about 4,585,674 (347)

The 'global city' misconceived: the myth of 'global management' in transnational service firms [PDF]

open access: yes, 2002
The ‘global city hypothesis' proposed by Saskia Sassen – and subsequently developed by Manuel Castells and others in the theory of a globalized urban network – has in recent years formed the basis for the argument that power and control in transnational ...
Abu-Leghod   +64 more
core   +1 more source

Integrated Triboelectric Nanogenerators in the Era of the Internet of Things

open access: yesAdvanced Science, 2019
Since their debut in 2012, triboelectric nanogenerators (TENGs) have attained high performance in terms of both energy density and instantaneous conversion, reaching up to 500 W m−2 and 85%, respectively, synchronous with multiple energy sources and ...
Abdelsalam Ahmed   +9 more
doaj   +1 more source

Generation Output Routing and Shares in the Iraqi 400kV Power Gird [PDF]

open access: yesEngineering and Technology Journal, 2014
With the power systems deregulation and the introduction of competition in the electricity supply industry, it has become important to answer many questions such questions are; How much power of a certain generator is received by a particular load?
Qais Matti Alias, Sermed Safaa Mahmood
doaj   +1 more source

The operating mode of electric vehicles and its impact on renewable energy consumption [PDF]

open access: yesE3S Web of Conferences, 2021
Nowadays, under the dual pressure of fossil energy shortage and ecological environmental pollution, new energy vehicles have flourished in our country by virtue of their clean and low noise advantages. But correspondingly, the grid connection of electric
Li Xiaoyu   +7 more
doaj   +1 more source

Architectures for smart end-user services in the power grid [PDF]

open access: yes, 2010
-The increase of distributed renewable electricity generators, such as solar cells and wind turbines, requires a new energy management system. These distributed generators introduce bidirectional energy flows in the low-voltage power grid, requiring ...
De Turck, Filip   +5 more
core   +2 more sources

Research on Energy Management Method of Fuel Cell and Supercapacitor Hybrid Power System Based on Optimal Power Consumption

open access: yesChengshi guidao jiaotong yanjiu
Objective With the steady advancement of technology and China's dual carbon process, the application of hydrogen energy in urban transportation is increasing.
LIANG Rujun, CHEN Zhi, QI Fang, YAN Yu
doaj   +1 more source

On Modelling of Edge Datacentre Microgrid for Participation in Smart Energy Infrastructures

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2022
Datacentres are becoming a sizable part of the energy system and are one of the biggest consumers of the energy grid. The so-called “Green Datacentre” is capable of not only consuming but also producing power, thus becoming an important ...
Nikolai Galkin   +4 more
doaj   +1 more source

Efficient Methodology for Power Management Optimization of Hybrid-Electric Aircraft

open access: yesAerospace
This paper presents an effective simplified model to optimize the mission power management supply for hybrid-electric aircraft in the conceptual design phase.
Giuseppe Palaia   +2 more
doaj   +1 more source

An Energy Efficient Adaptive Sampling Algorithm in a Sensor Network for Automated Water Quality Monitoring

open access: yesSensors, 2017
Power management is crucial in the monitoring of a remote environment, especially when long-term monitoring is needed. Renewable energy sources such as solar and wind may be harvested to sustain a monitoring system.
Tongxin Shu   +3 more
doaj   +1 more source

AC Ship Microgrids: Control and Power Management Optimization

open access: yesEnergies, 2018
At sea, the electrical power system of a ship can be considered as an islanded microgrid. When connected to shore power at berth, the same power system acts as a grid connected microgrid or an extension of the grid.
Monaaf D. A. Al-Falahi   +5 more
doaj   +1 more source

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