Results 11 to 20 of about 11,072,047 (305)

Variability of Energy Dissipation and Shear Rate with Geometry in Unbaffled Surface Aerator [PDF]

, 2009
mixing in surface aerators. At constant dynamic variables (rotational speed), both and γ are greatly affected by the geometric parameters (impeller diameter, cross-sectional area of the tank, liquid height, rotor blade length and immersion height). By
Kumar, Bimlesh, Bimlesh Kumar, Bimlesh, Kumar   +2 more
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Africa energy outlook 2021. [PDF]

, 2020
The global energy transition and decarbonization drive are putting pressure on oil demand while shale has unlocked abundant resources. The global context forces African petroleum producers to adapt or become uncompetitive. The coronavirus pandemic (COVID-
African Energy Chamber
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Evaluating the JULES land surface model energy fluxes using FLUXNET data [PDF]

, 2010
Surface energy flux measurements from a sample of ten FLUXNET sites selected to represent a range of climate conditions and biome types were used to assess the performance of the Hadley Centre land surface model (JULES).
Lloyd, Amanda, Shuttleworth, Jim, Lloyd, A., Pryor, M., Weedon, G.P., Blyth, E., Blyth, Eleanor, Gash, John, Weedon, Graham P., Gash, J.H.C., Shuttleworth, J., Pryor, Matthew, Lloyd, A.J.   +12 more
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Planar D-π-A Configured Dimethoxy Vinylbenzene Based Small Organic Molecule for Solution-Processed Bulk Heterojunction Organic Solar Cells

Applied Sciences, 2020
A new and effective planar D-π-A configured small organic molecule (SOM) of 2-5-(3,5-dimethoxystyryl)thiophen-2-yl)methylene)-1H-indene-1,3(2H)-dione, abbreviated as DVB-T-ID, was synthesized using 1,3-indanedione acceptor and dimethoxy vinylbenzene ...
Shabaz Alam, M. Shaheer Akhtar, Abdullah, Eun-Bi Kim, Hyung-Shik Shin, Sadia Ameen   +5 more
doaj   +1 more source

Size effect of the surface energy density of nanoparticles [PDF]

, 2015
The surface energy density of nanoparticles exhibits an obviously size-dependent behavior. However, how the surface energy density changes with the diameter of nanoparticles is still ambiguous. Based on a recently developed continuum theory considering
Chen SH(陈少华), Yao Y (姚寅), Wei YC (魏遥驰)   +2 more
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3D-printed NiFe-layered double hydroxide pyramid electrodes for enhanced electrocatalytic oxygen evolution reaction

Scientific Reports, 2022
Electrochemical water splitting has been considered one of the most promising methods of hydrogen production, which does not cause environmental pollution or greenhouse gas emissions.
Jinhyuck Ahn, Yoo Sei Park, Sanghyeon Lee, Juchan Yang, Jaeyeon Pyo, Jooyoung Lee, Geul Han Kim, Sung Mook Choi, Seung Kwon Seol   +8 more
doaj   +1 more source

Gas-solid reaction based over one-micrometer thick stable perovskite films for efficient solar cells and modules

Nature Communications, 2018
Perovskite solar cells often suffer from poor uniformity and reproducibility especially in case of large area devices. Here Liu et al. developed a gas−solid reaction method that enables facile fabrication of over 1 µm thick perovskite films for solar ...
Zonghao Liu, Longbin Qiu, Emilio J. Juarez-Perez, Zafer Hawash, Taehoon Kim, Yan Jiang, Zhifang Wu, Sonia R. Raga, Luis K. Ono, Shengzhong (Frank) Liu, Yabing Qi   +10 more
doaj   +1 more source

Artificial Neural Network-Based Prediction and Morphological Evolution of Cu2O Crystal Surface Energy

, 2023
In this study, we investigate the crystal structure, surface energy, and atomic arrangement of Cu2O. Understanding these properties is crucial for exploring the potential applications and understanding the behavior of this material.
Min Zhao, Fuming Lai, Jian Yang, Yanqiang Hu, Shengfu Tong, Zhiling Zhou, Yongguo Shi, Man Wang   +7 more
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Doping‐Induced Electronic/Ionic Engineering to Optimize the Redox Kinetics for Potassium Storage: A Case Study of Ni‐Doped CoSe2

Advanced Science, 2022
Heteroatom doping effectively tunes the electronic conductivity of transition metal selenides (TMSs) with rapid K+ accessibility in potassium ion batteries (PIBs).
Hui Shan, Jian Qin, Jingjing Wang, Hirbod Maleki Kheimeh Sari, Li Lei, Wei Xiao, Wenbin Li, Chong Xie, Huijuan Yang, Yangyang Luo, Gaini Zhang, Xifei Li   +11 more
doaj   +1 more source

Sensitivity of a distributed temperature-radiation index melt model based on AWS observations and surface energy balance fluxes, Hurd Peninsula glaciers, Livingston Island, Antarctica [PDF]

, 2012
We use an automatic weather station and surface mass balance dataset spanning four melt seasons collected on Hurd Peninsula Glaciers, South Shetland Islands, to investigate the point surface energy balance, to determine the absolute and relative ...
Lapazaran Izargain, Javier Jesús, J. Otero, M. Bañón, Jonsell, U. Y., Bañón García, Manuel, Navarro, Francisco J., Jonsell, Ulf, U. Y. Jonsell, Otero, Jaime, Bañón, Manolo, Otero García, Jaime, F. J. Navarro, Navarro Valero, Francisco José, Lapazaran, Javier Jesús, J. J. Lapazaran   +14 more
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