Results 11 to 20 of about 9,727,327 (310)

On-machine measurement and compensation machining for ultra-precision cutting of optical aspheric surface

Jin'gangshi yu moliao moju gongcheng, 2022
An in-situ measurement device combining contact probe and capacitive displacement sensor is developed. An aspherical measurement and compensation machining software is also developed. The single point diamond ultra precision cutting experiments for C3604
Liang ZHANG, Xipeng GUO, Dingwen WANG, Wen XU, Jian LIU, Shuai HUANG, Shaohui YIN   +6 more
doaj   +1 more source

Single-fraction stereotactic radiosurgery versus microsurgical resection for the treatment of vestibular schwannoma: a systematic review and meta-analysis

Systematic Reviews, 2022
Background Vestibular schwannomas are benign tumours for which various treatments are available. We performed a systematic review of prospective controlled trials comparing the patient-relevant benefits and harms of single-fraction stereotactic ...
Thomas Jakubeit, Sibylle Sturtz, Dorothea Sow, Wolfram Groß, Christoph Mosch, Mattea Patt, Vera Weingärtner, Jan Boström, Roland Goldbrunner, Martina Markes   +9 more
doaj   +1 more source

Effective study selection using text mining or a single-screening approach: a study protocol

Systematic Reviews, 2018
Background Systematic information retrieval generally requires a two-step selection process for studies, which is conducted by two persons independently of one another (double-screening approach). To increase efficiency, two methods seem promising, which
Siw Waffenschmidt, Elke Hausner, Wiebke Sieben, Thomas Jaschinski, Marco Knelangen, Inga Overesch   +5 more
doaj   +1 more source

Operation strategies of battery energy storage systems for preventive and curative congestion management in transmission grids

IET Generation, Transmission & Distribution, 2023
Anticipating and relieving congestions is an ongoing challenge for transmission system operators. Distributed grid‐scale battery energy storage systems enable operators to shift power flows and remedy congestion through virtual power lines and grid ...
Martin Lindner, Jan Peper, Nils Offermann, Charlotte Biele, Milijana Teodosic, Oliver Pohl, Julian Menne, Ulf Häger   +7 more
doaj   +1 more source

A simulation study to compare different estimation approaches for network meta-analysis and corresponding methods to evaluate the consistency assumption

BMC Medical Research Methodology, 2020
Background Network meta-analysis (NMA) is becoming increasingly popular in systematic reviews and health technology assessments. However, there is still ambiguity concerning the properties of the estimation approaches as well as for the methods to ...
Corinna Kiefer, Sibylle Sturtz, Ralf Bender   +2 more
doaj   +1 more source

A Comparative Study of NO_x Emission Characteristics in a Fuel Staging and Air Staging Combustor Fueled with Partially Cracked Ammonia

Energies, 2022
Recently, ammonia is emerging as a potential source of energy in power generation and industrial sectors. One of the main concerns with ammonia combustion is the large amount of NO emission.
Namsu Kim, Minjung Lee, Juwon Park, Jeongje Park, Taesong Lee   +4 more
doaj   +1 more source

Liberty, Efficiency, and Law [PDF]

, 1987
In today’s society there is an increasing demand for renewable energy sources such as sun and wind power. These sources are intermittent, and energy storage is therefore needed to ensure a constant power supply.
Cooter, Robert D.
core   +4 more sources

An investigation on CO2 concentration, energy use and differential performance of mixed-mode ventilation control strategies in a lecture theatre during winter [PDF]

E3S Web of Conferences
This research presents a methodology for evaluating different mixed-mode ventilation control strategies through the measurement of CO2 concentration and energy performance simulation.
Tohidi Moghadam Talie, Siddiquee S.M. Shahnewaz, Bruton Ken, O’Sullivan Dominic T.J.   +3 more
doaj   +1 more source

Are Efficiency Wages Efficient? [PDF]

, 1986
Efficiency wage models have been criticized because worker malfeasance can be prevented in a pareto efficient manner by requiring workers to post a bond which they lose if they are caught cheating. However, since it is costly to monitor workers and costless to demand a larger bond, firms should pay nothing for monitoring and demand very large bonds ...
William T. Dickens, Lawrence F. Katz, Kevin Lang   +2 more
openaire   +2 more sources

From Energy Audit to Energy Performance Indicators (EnPI): A Methodology to Characterize Productive Sectors. The Italian Cement Industry Case Study

Energies, 2021
In this work, a novel methodology to assess energy performance indicators of productive and economic sectors trough the analysis of the Italian mandatory energy audits database is presented.
Giacomo Bruni, Alessandra De Santis, Carlos Herce, Luigi Leto, Chiara Martini, Fabrizio Martini, Marcello Salvio, Federico Alberto Tocchetti, Claudia Toro   +8 more
doaj   +1 more source