Results 41 to 50 of about 1,883,484 (166)

Decoupling Office Energy Efficiency From Employees' Well-Being and Performance: A Systematic Review

Frontiers in Psychology, 2019
Energy efficiency (i.e., the ratio of output of performance to input of energy) in office buildings can reduce energy costs and CO2 emissions, but there are barriers to widespread adoption of energy efficient solutions in offices because they are often ...
Malgorzata W. Kozusznik, Laurentiu Paul Maricutoiu, José M. Peiró, José M. Peiró, Delia Mihaela Vîrgǎ, Aida Soriano, Carolina Mateo-Cecilia   +6 more
doaj   +1 more source

Energy Utilization for Ground Water Pumping under Declining Water Table Scenario: A Review

International Journal of Economic Plants, 2021
Land and water are the most essential natural resources for sustaining life. Availability of these valuable resources for our future generations depend on decisions and efforts we make today.
Kuldeep Singh, M. S. Sidhpuria, R. K. Jhorar, Anil Kumar, Jogender Singh, Mukesh Kumar Mehla   +5 more
doaj  

Estimation of displacement efficiency for Devonian formations based on the results of specialized well tests

Georesursy
The displacement efficiency and residual oil saturation are the most important characteristics determining the recoverable volumes of oil and the waterflooding efficiency.
I. M. Indrupskiy, K. V. Kovalenko, D. M. Gazizova, A. F. Sibgatullin, D. P. Anikeev, N. V. Shabalin, K. R. Sadeev, A. A. Lutfullin   +7 more
doaj   +1 more source

Internal quantum efficiency enhancement of GaInN/GaN quantum-well structures using Ag nanoparticles

AIP Advances, 2015
We report internal quantum efficiency enhancement of thin p-GaN green quantum-well structure using self-assembled Ag nanoparticles. Temperature dependent photoluminescence measurements are conducted to determine the internal quantum efficiency.
Daisuke Iida, Ahmed Fadil, Yuntian Chen, Yiyu Ou, Oleksii Kopylov, Motoaki Iwaya, Tetsuya Takeuchi, Satoshi Kamiyama, Isamu Akasaki, Haiyan Ou   +9 more
doaj   +1 more source

EFFICIENCY OF COMPLICATED WELL STOCK OPERATION

Problems of Gathering Treatment and Transportation of Oil and Oil Products
One of the key problems of the oil industry is the of asphalt-resin-paraffin deposit (ARPD) formation which affects the efficiency of well equipment operation. This leads to significant economic losses during extraction and transportation of products.
E.M. Almukhametova, A.Yu. Gutorov, A.D. Maksimova, R.I. Rafikov, A.A. Smagin   +4 more
openaire   +1 more source

A novel hybrid efficiency prediction model for pumping well system based on MDS–SSA–GNN

Energy Science & Engineering
The prediction of the efficiency of oil well pumping systems plays an important role in optimizing the energy efficiency parameters of these systems. Currently, the prediction of oil well pumping system efficiency relies primarily on mechanistic models ...
Biao Ma, Shimin Dong
doaj   +1 more source

Absolute evaluation of internal and external quantum efficiencies and light extraction efficiency in InGaN single quantum wells by simultaneous photoacoustic and photoluminescence measurements combined with integrating-sphere method

Science and Technology of Advanced Materials: Methods
Separated evaluation of factors in the external quantum efficiency (EQE) is important in order to improve the characteristics of semiconductors optical devices.
Keito Mori-Tamamura, Yuchi Takahashi, Shigeta Sakai, Yuya Morimoto, Junji Hirama, Atsushi A. Yamaguchi, Susumu Kusanagi, Yuya Kanitani, Yoshihiro Kudo, Shigetaka Tomiya   +9 more
doaj   +1 more source

Ecological efficiency: The ability to achieve human well-being while limiting environmental impact

Environmental and Sustainability Indicators
To reach the UN’s Sustainable Development Goals, humanity should improve its capacity to achieve well-being and development while reducing its environmental impact. This calls for increased efficiency in the process of transforming natural resources into
Lucia Tamburino, Giangiacomo Bravo
doaj   +1 more source

Increasing the efficiency of well killing in depleted gas condensate fields with extremely low reservoir pressures

Наука. Инновации. Технологии
The problem is studied by the example of gas condensate fields at the final stage of development, where production wells have abnormally low reservoir pressures and their killing for repair work is a serious challenge requiring a search for new solutions.
R. A. Gasumov, E. R. Gasumov
doaj   +1 more source

Coupled Effects of Reservoir Curvature, Thickness, and Well Configuration on Hydrogen Storage Efficiency in Saline Aquifers

Energies
Site selection evaluation is a crucial step in the research of hydrogen storage in saline aquifers. Geometric characteristics of the reservoir are one of the key factors determining the site selection evaluation.
Zihao Shi, Jiayu Qin, Nengxiong Xu, Yan Qin, Bin Zhang, Shuangxi Feng, Liuping Chen, Hao Wang   +7 more
doaj   +1 more source