Results 1 to 10 of about 10,125,302 (305)

Evaluating the Effectiveness of newly prepared Asymmetric Dicationic Ionic Liquids in Egyptian Base Oil improvement II [PDF]

open access: yesAlfarama Journal of Basic & Applied Sciences, 2023
This study synthesized three types of asymmetric dicationic ionic liquids, specifically, 1- ( 2 - (1- decyl - 1H - imidazolium - 3 - yl) ethyl) - 3 - methylpyridinium bromide (IL 201), 1- ( 5 - (1- decyl -1H - imidazolium - 3 - yl) pentyl) - 3 ...
Sameh Bidak   +4 more
doaj   +1 more source

A New Method for Continuous Monitoring of Black and Odorous Water Body Using Evaluation Parameters: A Case Study in Baoding

open access: yesRemote Sensing, 2022
Water is an important factor in human survival and development. With the acceleration of urbanization, the problem of black and odorous water bodies has become increasingly prominent.
Xueying Zhou   +7 more
doaj   +1 more source

The Construction and Analysis of Commercial Aircraft Economic Benefit Evaluation Index System

open access: yesHangkong gongcheng jinzhan, 2022
At present,there is a lack of comprehensive analysis and evaluation of commercial aircraft economic benefits for manufacturers at home and abroad. In this paper an index system for OEM is developed to evaluate commercial aircraft economic performance ...
HOU Panpan, XU Songlin
doaj   +1 more source

Magnetization Vector Inversion Based on Amplitude and Gradient Constraints

open access: yesRemote Sensing, 2022
Magnetization vector inversion has been developed since it can increase inversion accuracy due to the unknown magnetization direction caused by remanence.
Xiaoqing Shi, Hua Geng, Shuang Liu
doaj   +1 more source

Optimization Design of the Organic Rankine Cycle for an Ocean Thermal Energy Conversion System

open access: yesEnergies, 2022
This study selects five parameters as decision variables for the optimization design of an ocean thermal energy conversion system, including the evaporating temperature, the condensing temperature, the pinch-point temperature difference between the ...
Xiaowei Yang   +3 more
doaj   +1 more source

Chinese Expert Consensus Statement on Clinical Evaluation System of Medical Endoscopy

open access: yesChinese Journal of Lung Cancer, 2020
Nowadays, there is a rising development and popularity of medical endoscopes. The international brand dominates the endoscope market. The market size of domestic brands is also growing rapidly.
Chinese Medical Doctors Association of Thoracic Surgeons   +3 more
doaj   +1 more source

Evaluation indexes and formation conditions of hot dry rock exploration

open access: yes地质科技通报, 2021
Hot Dry Rock has the characteristics of high utilization rate, pollution-free, huge reserves, wide distribution, sustained stability, good security, and so on.
Demin Liu   +7 more
doaj   +1 more source

Application of Incentive-Type Variable Weight in Decision of 500/220kV Received Electromagnetic Looped Grid Decomposing Operation

open access: yesIEEE Access, 2020
With the construction of 500kV grid, the 500/220kV electromagnetic looped grid of the received power gird will make short current problems stand out. Effectively and economically, considering the measure of the short current limitation, it is essential ...
Haiyun Wang   +5 more
doaj   +1 more source

Study of the comprehensive anti-jamming performance evaluation for data-link system

open access: yesDianzi Jishu Yingyong, 2021
At the present, evaluating the anti-jamming performance of data-link only aims the certain type of interference, but the comprehensive anti-jamming performance evaluation of the whole data-link system is scanty.
Ma Lili   +4 more
doaj   +1 more source

The evaluation index improvement for the relocation of research equipment

open access: yesEuropean Journal of Government and Economics, 2019
In this paper, evaluation index improvement for research equipment relocation is presented and discussed to boost the effectiveness of research equipment management.
Donghun Yoon
doaj   +1 more source

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