Results 111 to 120 of about 1,455,927 (311)

Precambrian geology of the Upernavik - Red Head region (72°15'–75°15'N), northern West Greenland

Rapport Grønlands Geologiske Undersøgelse, 1978
A geological reconnaissance of the region between 72°15' and 74°15'N was made by Escher & Pulvertaft (1968) during the summer of 1967. In 1977 the region was revisited by J. E. and O. S. and the geological survey was extended as far north as Steenstrup Gletscher (75°15'N) (fig. 7).
J.C Escher, O Stecher
openaire   +2 more sources

Land birds on atolls: diversity, origin, and function

Biological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl, Alex S. Wegmann, Nick D. Holmes, Caitlin E. Andrews, Gérard Rocamora, Simon Ducatez, James C. Russell   +6 more
wiley   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

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

Provenance, paleoweathering and maturity study of shales in the Mundeck Formation of Kribi-Campo sub-basin in the western African margin (A geochemical approach)

Evolving Earth
The geochemical investigation of shales from Mundeck Formation of the Kribi-Campo sub-basin was conducted to determine the origin, tectonic setting evolution, paleo-weathering conditions, sediment maturity and cycling.
Ashukem Ethel Nkongho, Bokanda Ekoko Eric, Bisse Salomon Betrant, Kwankam Florence Njinto, Philip Fralick, Ikose Franklin, Nzesseu Valentino, Belinga Belinga Cedric, Ekomane Emile   +8 more
doaj   +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

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

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Manual of suggested procedures for the state-wide paleontologic-mineralogic survey in Texas

, 1939
This manual was prepared by the Bureau of Economic Geology, The University of Texas, to be used in connection with the Works Progress Administration state-wide paleontologic-mineralogic survey.University of Texas.
Evans, Glen L. (Glen Louis), 1911-
core   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source