Results 41 to 50 of about 267,291 (302)

Quantitative determination of the leaching range of in-situ leaching mining area by stagnation point

Nuclear Engineering and Technology
The leaching range is critical to the leaching efficiency, production cost and environmental effect of in-situ leaching of uranium. In this study, the groundwater dynamics of the well-site was simulated to determine the leaching range in condition of ...
Chong Zhang, Yongmei Li, Yuqing Niu, Kaixuan Tan, Tingting Xie, Yixuan Yao, Chunguang Li, Zhenzhong Liu   +7 more
doaj   +1 more source

Stagnation–saddle points and flow patterns in Stokes flow between contra-rotating cylinders [PDF]

, 1998
The steady flow is considered of a Newtonian fluid, of viscosity mu, between contra-rotating cylinders with peripheral speeds U-1 and U-2 The two-dimensional velocity field is determined correct to O(H-0/2R)(1/2), where 2H(0) is the minimum separation of
Gaskell, P.H., Savage, M.D., Thompson, H.M.   +2 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Stagnation and Pseudo‐Stagnation Lines for Separating 3D Groundwater Flow Systems in Tóthian Basins

Water Resources Research
Stagnation points have been found to be useful in characterizing groundwater flow regimes in 2D domains. However, knowledge on stagnation points in 3D basins is limited.
Zhi‐Yuan Zhang, Xiao‐Wei Jiang, Peng‐Yu Zhou, Okke Batelaan, Xu‐Sheng Wang, Peng‐Fei Han, Li Wan   +6 more
doaj   +1 more source

Characteristics of Passenger Stagnation Behavior Spectrum Based on Monitoring Video Data at Ticket Gate in Urban Rail Transit Stations

Chengshi guidao jiaotong yanjiu
[Objective] To scientifically set up the ticket gate, improve its actual passing capacity, and reduce the congestion risk caused by abnormal stagnation of the passengers, it is necessary to study the characteristics of passenger stagnation behavior ...
Qi SHI, Yong FANG, Hua HU, Zhigang LIU, Wanxu WEI   +4 more
doaj   +1 more source

Numerical Investigation on the Effect of Blockage on the Icing of Airfoils

Aerospace, 2022
The blockage is one of the important factors affecting the icing of airfoils in wind tunnel tests. In this paper, numerical simulations are conducted to study the effect of blockage on the icing of different airfoils.
Daixiao Lu, Zhiliang Lu, Zhirong Han, Xian Xu, Ying Huang   +4 more
doaj   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

Advanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken, K. Ashoke Raman, Alexander Bauer, Violeta Karyofylli, Eva Jodat, André Karl, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source

Theoretical Analysis of Groundwater Flow Patterns Near Stagnation Points

Water Resources Research, 2019
The importance of stagnation points for characterizing groundwater flow patterns has long been recognized. However, the possible streamline configurations near stagnation points under the constraints of Darcy's law have not been thoroughly investigated ...
Etienne Bresciani, Peter K. Kang, Seunghak Lee   +2 more
doaj   +1 more source

Scaling group analysis on MHD effects on heat transfer near a stagnation point on a linearly stretching sheet with variable viscosity and thermal conductivity, viscous dissipation and heat source/sink [PDF]

Theoretical and Applied Mechanics, 2015
The effects of variable viscosity and thermal conductivity on MHD heat transfer flow of viscous incompressible electrically conducting fluid near stagnation point flow on non-conducting stretching sheet in presence of uniform transfer magnetic ...
Dessie Hunegnaw, Naikoti Kishan
doaj   +1 more source