Results 71 to 80 of about 2,641,272 (265)

Application of Multiple Geophysical Exploration Methods in the Exploration of Marine Sand Resources in the Northern Offshore Waters of the South China Sea

Journal of Marine Science and Engineering
Marine sand, in addition to oil and gas resources, is the second-largest marine mineral resource. The rational development and utilization of marine sand resources are conducive to the growth of the marine economy. In the process of marketing marine sand
Gang Yu, Xichong Hu, Jie Fang, Ying Yang, Yongcong Zhang, Jinhui Lin, Jingyi Liu, Libing Qian   +7 more
doaj   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Community understanding and recommendations for sea turtle conservation amidst life-threatening risks on Buru Island [PDF]

BIO Web of Conferences
Buru Island’s rich coastal ecosystems serve as critical habitats for endangered sea turtles, such as the leatherback, green turtle, hawksbill, and olive ridley, which frequently nest and forage along its coasts.
Kirtan Ravidas, Faruqie Ahmad R., Dwianto Mochamad, Munawar Hasna S. Al, Khaerunnisa Aulia P., Putra Caesar A.W., Gerungan Gabriella A.S., Azzahra Raihana Y., Faisal Ahmad, Sukmaayu Gifta B., Purnama Iffa, Gifari Taufik, Musa Albi M.T., Putra Alifvian K., Raihan Zeta, Rahmat Arinal F., Yasmin Fida Z.L., Maulana Ilham, Cakasana Nadya, Iqbal Muhammad   +19 more
doaj   +1 more source

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source

The conceptual design of a novel offshore borehole mining technology and study on granularization principle

Journal of Ocean Engineering and Science
Currently, subsea mining is primarily limited to sea sand extraction and deep-sea mining that focus mainly on mining activities at the seabed surface.
Zichen Xu, Tong Shen, Xuan Zhang, Mian Chen   +3 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 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

Role of maritime ports and shipping in the creation of the economic value of the sea areas

SHS Web of Conferences, 2018
The sea coast location of a country has been regarded as a critical value for its development and prosperity for years. It relates to economic, military, and environmental issues.
Zaucha Jacek, Matczak Maciej
doaj   +1 more source

Migration of Barchan Dunes in Qatar–Controls of the Shamal, Teleconnections, Sea-Level Changes and Human Impact

Geosciences, 2018
Barchan dune fields are a dominant landscape feature in SE Qatar and a key element of the peninsula’s geodiversity. The migration of barchan dunes is mainly controlled by dune size, wind patterns, vegetation cover and human impact.
Max Engel, Fabian Boesl, Helmut Brückner   +2 more
doaj   +1 more source

Jamaica\u27s Tourism: sun, sea and sand to cultural heritage [PDF]

, 2012
Traditionally, Jamaica has been seen and promoted as a sun, sea and sand, winter get-away with foreign-owned, multinational corporations (MNCs) having a controlling interest.
Copeland A. Stupart, Shipley, Robert, Stupart, Copeland A., Robert Shipley   +3 more
core   +1 more source