Search
Now showing items 9461-9470 of 11177
Common-mode voltage reduction for space vector modulated three- to five-phase indirect matrix converter
(
Elsevier Ltd
, 2018 , Article)
All available Pulse Width Modulation (PWM) techniques employed to different Matrix Converter (MC) topologies generally generate switching Common-Mode Voltage (CMV), which introduces numerous operational concerns in electric ...
A decade of ceria based solar thermochemical H2O/CO2 splitting cycle
(
Elsevier Ltd
, 2019 , Article)
Since 2006, ceria is used as a redox reactive material for production of H2, CO, and syngas via a two-step solar driven thermochemical H2O/CO2 splitting cycle. Different forms of phase pure ceria were studied over a wide ...
A differential protection technique for multi-terminal HVDC
(
Elsevier Ltd
, 2016 , Article)
This paper presents a technique for differential protection of Multi-terminal High Voltage Direct Current (MTHVDC) transmission lines. The proposed technique depends on the electrical current data at both ends of each line ...
A Smart IEC 61850 Merging Unit for Impending Fault Detection in Transformers
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Article)
This paper proposes and experimentally validates the functionality of a smart IEC 61850 merging unit (MU) that supports self-healing and asset management functions of future power grids. The proposed MU can operate in a ...
Short-term greenhouse emission lowering effect of biochars from solid organic municipal wastes
(
Center for Environmental and Energy Research and Studies
, 2018 , Article)
Qatar economy has been growing rapidly during the last two decades during which waste generation and greenhouse gas emissions increased exponentially making them among the main environmental challenges facing the country. ...
Integrating Simulation in Optimal Synthesis and Design of Natural Gas Upstream Processing Networks
(
American Chemical Society
, 2018 , Article)
A natural gas upstream processing network consists of several main processing units. Many process configurations are available for selection, and the choice of technologies can be vast. There is no single technology or ...
The extent of segmental reporting and its value relevance: cross-country evidence
(
Emerald Group Publishing Ltd.
, 2018 , Article)
Purpose: The purpose of this paper is to examine the extent of segmental reporting disclosure and its value relevance to a sample of Qatari and Jordanian listed companies following the implementation review of the International ...
Sliding mode control based dtc of sensorless parallel-connected two five-phase pmsm drive system
(
Korean Institute of Electrical Engineers
, 2018 , Article)
This paper presents a sensorless direct torque control (DTC) combined with sliding mode approach (SM) and space vector modulation (SVM) to achieve mainly a high performance and reduce torque and flux ripples of a ...
Flexible hardware-managed isolated execution: Architecture, software support and applications
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Article)
We consider the problem of how to provide an execution environment where the application's secrets are safe even in the presence of malicious system software layers. We propose Iso-X- A flexible, fine-grained hardware-supported ...
Corporate reporting and disclosures in the emerging capital market of Kuwait: The perceptions of users and preparers
(
Palgrave Macmillan Ltd.
, 2018 , Article)
The objective of this paper is to investigate the perceptions of users and preparers regarding financial disclosure practices in annual reports of Kuwaiti listed firms. To measure participants' views, a questionnaire survey ...