Results 1 to 10 of about 19,668 (217)

Key energy indicators for sustainable development goals in Ukraine [PDF]

Problems and Perspectives in Management, 2022
Transforming the energy sector to provide universal access to reliable and modern energy services is an essential task for Ukraine, one of the Eastern Partnership countries with heavy energy dependence.
Svitlana Naumenkova, Volodymyr Mishchenko, Svitlana Mishchenko   +2 more
doaj   +1 more source

Energy Efficiency of the Ukrainian Economy by Types of Economic Activity [PDF]

Problemi Ekonomiki, 2023
The article is concerned with assessing and analyzing the energy efficiency of the Ukrainian economy by types of economic activity. The study analyzes the place of Ukraine among other countries according to international rankings (indices): the Energy ...
Kyzym Mykola O., Khaustova Viktoriia Ye., Shpilevskyi Volodymyr V., Kriachko Yevhen M.   +3 more
doaj   +1 more source

Broadband Spectral Shaping of Regenerative Amplification with Extra-Cavity Waveplate for Cross Polarized Wave Generation

Applied Sciences, 2022
We demonstrated extra-cavity gain narrowing pre-compensating in a regenerative amplifier with a multi-order triple-wavelength waveplate (WP). With a 1.117 mm thickness quartz waveplate, which was placed on the stretcher, the gain narrowing effect was ...
Baozhen Zhao, Xiaohua Zhang, Chong Lv, Qiushi Liu, Ji Zhang, Xianghao Meng, Mingjiang Ma, Guoqing Yang   +7 more
doaj   +1 more source

Improved cross polarized wave generation with an aperture

AIP Advances, 2022
A cross polarized wave (XPW) generation experiment with double BaF2 crystals in air was demonstrated with 120 µJ input pulse. A circular aperture was used to truncate the near field profile of the input beam and remove the outer part of the beam, and ...
Baozhen Zhao, Xiaohua Zhang, Chong Lv, Qiushi Liu, Ji Zhang, Mingjiang Ma, Guoqing Yang   +6 more
doaj   +1 more source

Energy saving at energy-intensive enterprises

Electrical Engineering and Power Engineering, 2022
Purpose. Investigate the methods of decision-making in the project portfolio management, as well as perform their software implementation as part of the system of the portfolio management optimization of energy saving projects at energy-intensive enterprises. Methodology.
Dubrovin, Valerii, Deineha, Larysa, Laktionov, Valerii   +2 more
openaire   +3 more sources

Application of Nomarski interference system in supersonic gas-jet target diagnosis

AIP Advances, 2021
Supersonic gas-jet target performs an important role in laser wakefield acceleration, and its density diagnosis is a significant part of target characteristic study.
Qiushi Liu, Mingjiang Ma, Xiaohua Zhang, Baozhen Zhao, Chong Lv, Xianghao Meng, Zhao Wang, Chuangye He, Baoxian Tian, Xiaofeng Xi, Fulong Liu, Bing Guo   +11 more
doaj   +1 more source

Characteristic diagnosis of supersonic gas jet target for laser wakefield acceleration with high spatial-temporal resolution Nomarski interference system

Frontiers in Physics, 2023
Gas targets hold distinctive significance and advantages in the field of laser-matter interaction. As a major type of gas targets, supersonic gas target is one of the most commonly used targets for laser wakefield acceleration (LWFA).
Qiushi Liu, Mingjiang Ma, Xiaohua Zhang, Chong Lv, Jianmin Song, Zhao Wang, Guoqing Yang, Yanlei Yang, Jiahao Wang, Qinxiang Li, Baozhen Zhao   +10 more
doaj   +1 more source

Development and Rationale of Two-Disk Operating Body of Agricultural Machine for Tillage

Наука и техника, 2021
One of the main problems in the design of agricultural machines, including tillage machines, is to ensure the optimal energy intensity of various technological operations. The design, kinematic and technological parameters of rotary tillage machines have
A. S. Ivanov, M. S. Puzyrev, E. M. Chikishev   +2 more
doaj   +1 more source

The impact of digital economy and industrial structure distortion on Xinjiang’s energy intensity under the goal of “double carbon”

Frontiers in Environmental Science, 2022
Reducing energy intensity is an important measure to achieve the goal of “double carbon” and build a beautiful Xinjiang. Selecting the panel data of 14 regions in Xinjiang from 2010 to 2020, this paper investigates the influence of digital economy and ...
Qingran Guo, Cuicui Ding, Zhuo Wu, Bocheng Guo, Yongxuan Xue, Depeng Li   +5 more
doaj   +1 more source

Energy Intensity of Steel Manufactured Utilising EAF Technology as a Function of Investments Made: The Case of the Steel Industry in Poland

Energies, 2021
The production of steel in the world is dominated by two types of technologies: BF + BOF (the blast furnace and basic oxygen furnace, also known as integrated steel plants) and EAF (the electric arc furnace).
Bożena Gajdzik, Włodzimierz Sroka, Jolita Vveinhardt   +2 more
doaj   +1 more source