Results 31 to 40 of about 1,327,278 (318)

Voltage Graphs

Discrete Mathematics, 1974
AbstractA possible way to obtain a complicated graph imbedding in a surface is to derive it as a covering of a simpler imbedding by assigning “voltages” to the edges of the simpler imbedding. Although this new method is but the dual of the current graph construction,it has independent importance in practical applications, illustrated here by a ...
openaire   +2 more sources

Transient voltage stresses in MMC–HVDC links – impulse analysis and novel proposals for synthetic laboratory generation

High Voltage, 2018
To evaluate and optimise insulation coordination concepts for state of the art high-voltage direct current (HVDC) transmission systems, appropriate test voltage shapes are required for laboratory imitation of occurring stresses.
Claudius Freye, Simon Wenig, Max Goertz, Thomas Leibfried, Frank Jenau   +4 more
doaj   +1 more source

Research on 3‐D total electric field of crossing high voltage direct current transmission lines based on upstream finite element method

High Voltage, 2021
The ongoing large‐scale construction of ultra high voltage direct current projects in China makes the crossing of two high voltage direct current (HVDC) lines inevitable.
Xiaoqian Ma, Li Xie, Kun He, Jiayu Lu
doaj   +1 more source

Test Strategies for Multi-Voltage Designs [PDF]

, 2009
Reducing the power consumption of digital designs through the use of more than one Vdd value (Multi-Voltage) is known and well practiced. Some manufacturing defects have Vdd-dependency, which implies defects can become active only at certain power supply
Khursheed, Syed Saqib, Saqib Khursheed, Bashir M. Al-Hashimi, Al-Hashimi, Bashir   +3 more
core   +1 more source

Voltage Ripple Reduction in Voltage Loop of Voltage Source Converter

International Journal of Power Electronics and Drive Systems (IJPEDS), 2017
In order to achieve a good dynamical response of a full-bridge AC-DC voltage source converters (VSC). The bandwidth of PI controller must be relatively wide. This leads to the voltage ripple produced in the control signal, as known that its ripple frequency has twice of the line frequency and cause the 3rd harmonic of an input current. A Ripple Voltage
Jedsada Jaroenkiattrai, Viboon Chunkag
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Energy optimization of multiprocessor systems on chip by voltage selection

, 2007
Dynamic voltage selection and adaptive body biasing have been shown to reduce dynamic and leakage power consumption effectively. In this paper, we optimally solve the combined supply voltage and body bias selection problem for multiprocessor systems with
Eles, Petru Ion,, Peng, Zebo,, Peng, Zebo, Schmitz, M.T.,, Schmitz, Marcus, Al-Hashimi, Bashir M., Andrei, Alexandru,, Andrei, Alexandru, Eles, Pertu, Al, Hashimi B.M.,   +9 more
core   +1 more source

Genetic voltage indicators [PDF]

BMC Biology, 2019
AbstractAs a “holy grail” of neuroscience, optical imaging of membrane potential could enable high resolution measurements of spiking and synaptic activity in neuronal populations. This has been partly achieved using organic voltage-sensitive dyes in vitro, or in invertebrate preparations yet unspecific staining has prevented single-cell resolution ...
Bando, Yuki, Grimm, Christiane, Cornejo, Victor H., Yuste, Rafael   +3 more
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Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele, Calogero Virgone, Michaela Kuhlen, Sabine Irtan, Yves Reguerre, Malgorzata Krawczyk, Ewa Bien, Tal Ben‐Ami, Maja Cesen, Ricardo Lopez‐Almaraz, Andrea Ferrari, Gianni Bisogno, Dominik T. Schneider, Abbas Agaimy, Constantin Lapa, Hubert Ducou le Pointe, Rainer Claus, Catherine Daniel, Ines B. Brecht, Daniel Orbach   +19 more
wiley   +1 more source

Optimization of Low-Carbon Integrated Energy Systems With Efficient Hydrogen Use and Flexible CCPP-MR-HCHP Operations

International Transactions on Electrical Energy Systems
With the increasing integration of renewable energy sources into the power system, challenges such as wind curtailment and operational flexibility are becoming more prominent.
Zheng Wang, Yang Qi, Rui Wang, Shaoyi Ren, Jun Wu   +4 more
doaj   +1 more source

The Voltage Sensor in Voltage-Dependent Ion Channels [PDF]

Physiological Reviews, 2000
In voltage-dependent Na, K, or Ca channels, the probability of opening is modified by the membrane potential. This is achieved through a voltage sensor that detects the voltage and transfers its energy to the pore to control its gate. We present here the theoretical basis of the energy coupling between the electric field and the voltage, which allows ...
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