Results 101 to 110 of about 10,570,902 (260)

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Effect of Manganese Oxide Mineralogy and Surface Mo Coverage on Mo Isotope Fractionation During the Adsorption Process

The large molybdenum (Mo) isotope fractionation from seawater is caused by the adsorption of Mo on manganese oxides. However, the effects of the manganese oxide mineralogy (crystal structure) and surface Mo coverage on Mo isotope fractionation have not ...
Keisuke Fukushi, Yoshio Takahashi, Akihiro Okuyama, Minako Kurisu, Teruhiko Kashiwabara   +4 more
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

RESULTS ON THE CMB7 RECEPTOR MODELLING IN THE VAAL TRIANGLE

Clean Air Journal, 1996
J.P. Engelbrecht, V.S. Reddy, L. Swanepoel, J.C. Mostert   +3 more
doaj   +1 more source

Automatic Process Mineralogy Based on Gold Ore Core

Kuangchan zonghe liyong
This is an article in the field of process mineralogy. A quartz vein type gold deposit in Shandong has a gold grade of 2.51 g/t. In order to further develop the deposit and study the beneficiation process, the process mineralogy of the mineral was ...
Mingming CAI, Guangsheng LI, Xingfu ZHU, Chao XU, Qiwei SUN, Nan WANG   +5 more
doaj   +1 more source

Developing and sustaining capability in process mineralogy

, 2016
There are a number of disciplines in the minerals industry for which concern has been expressed regarding the sustainability of human capital. The boom-bust cycles that occur in the industry, the trend in tertiary education towards consolidation or in ...
Wightman, E. M., Evans, C. L.
core  

Unveiling spatial heterogeneity in urban underground space development patterns and mechanisms for differentiated planning: A points of interest‐based study of Shanghai

Deep Underground Science and Engineering, EarlyView.
This study investigated the spatial patterns and development mechanisms of urban underground space (UUS) in Shanghai using underground points of interest data. It revealed distinct development mechanisms between the main city and suburbs, highlighting the need for differentiated UUS planning and policies to optimize underground space resources ...
Chenxiao Ma, Fangle Peng, Yongkang Qiao, Yunhao Dong   +3 more
wiley   +1 more source

Dynamic cracking properties and generating conditions of coal under rapid gas release

Deep Underground Science and Engineering, EarlyView.
Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang, Hanpeng Wang, Liang Yuan, Guofeng Yu, Wei Wang, Benliang Chen, Bo Ren   +6 more
wiley   +1 more source

The process engraver's monthly.

Numbering continuous.Mode of access: Internet.Feb.-Aug. 1895, 1899- , Nov. 1903, The Process photogram; Apr. 1896-Feb. 1898, The Process photogram and illustrator (continued as caption title to Nov.
Federation of Master Process Engravers.
core  

PARADIGMS AND DIRECTIONS OF MINERALOGY [PDF]

, 2015
The article contains comments and additions to V.A. Popov's article "On the Essence of the Mineral World and the Paradigms of Mineralogy" (Mineralogy. 2015. No. 1. Pp. 6-12).
O.K. Ivanov
core   +1 more source