Results 61 to 70 of about 3,360 (218)

Numerical Simulation on Hybrid Lifting Operation of Polymetallic Nodules and Rare-Earth Elements-Rich Mud by Air-Lift Pump in Deep Sea around Minamitorishima Island

Journal of Marine Science and Engineering
Polymetallic nodules and REE-rich mud under the seabed of 5500–5700 m water depth around Minamitorishima island are promising and attractive for exploration and development.
Yoshiyuki Shimizu, Masatoshi Sugihara, Koichiro Fujinaga, Kentaro Nakamura, Yasuhiro Kato   +4 more
doaj   +1 more source

Common heritage of mankind: when science challenges legal concepts [PDF]

, 2014
By demonstrating the role of marine organisms in the formation and composition of deep-sea mineral resources, the aim of this poster is to demonstrate that legal definitions can sometimes be relatively simplistic and limited. Considering that on the deep
Lallier, Laura
core  

Colonization, Penetration and Transformation of Manganese Oxide Nodules by Aspergillus niger [PDF]

, 2019
In this study, the ability of the geoactive fungus Aspergillus niger to colonize and transform manganese nodules from the Clarion-Clipperton Zone in both solid and liquid media was investigated.
Csetenyi, Laszlo, Ferrier, John, Gadd, Geoffrey Michael, Yang, Yuyi   +3 more
core   +2 more sources

Options for managing human threats to high seas biodiversity [PDF]

, 2020
Areas beyond national jurisdiction (ABNJ) constitute 61% of the world's oceans and are collectively managed by countries under the United Nations Convention on the Law of the Sea (UNCLOS).
Allen, HL, Hoppit, G, McIntyre, CJ, O'Leary, BC, Roberts, CM, Townley, A   +5 more
core   +5 more sources

Direct Alloying of Steel with Nickel Concentrate [PDF]

, 2016
A technology of alloying steel with nickel reduced from nickel concentrate is analysed and developed. Limits of reduction concentration areas are defined.
Nokhrina, Olga Ivanovna, Proshunin, I. E., Rozhikhina, I. D.   +2 more
core   +1 more source

Millennial‐Scale Hydrothermal Variability at the Carlsberg Ridge Driven by Sea‐Level Change and Transient Magmatism

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Hydrothermal systems at mid‐ocean ridges (MORs) mediate the transfer of heat and geochemical fluxes from the mantle to the hydrosphere, facilitating fluid‐rock interaction and metal cycling. While short‐term hydrothermal dynamics are well studied, the long‐term response of these systems at slow‐spreading ridges to glacial‐interglacial sea ...
Sayantan De, Sunil Kumar Singh, Robin John   +2 more
wiley   +1 more source

The Stability of Manganese Oxides Under Laser Irradiation During Raman Analyses: II. Layer Structures

Journal of Raman Spectroscopy, Volume 56, Issue 10, Page 1072-1088, October 2025.
Manganese oxides are important geomaterials with diverse technological applications. Here, we investigate the behaviour of the most common Mn oxides with layer structures under irradiation by a 532‐nm laser, with intensity ranging from 23 µW/µm2 to 36.8 mW/µm2.
Simone Bernardini, Giancarlo Della Ventura, Luigi Jovane, Armida Sodo, Boriana Mihailova   +4 more
wiley   +1 more source

Key Components and Best Practices for Environmental Impact Assessments [PDF]

, 2016
New and emerging activities pose risks to the conservation and sustainable development of ABNJ in the absence of prior assessment, and remain a significant gap under UNCLOS.
Duncan E. J. Currie
core  

Performance tests on Screw Feeder Conveyor for Nodule Transfer Deep Sea Applications [PDF]

, 2017
A screw conveyor is a versatile conveyor used in many process plants for the transfer of bulk solids and powders. The following article has written to understand screw conveyor design and selection of the right screw conveyor for underwater applications ...
D, D. (Dineshkumar), K, A. (Amudha), R, R. N. (Ramesh), Ramadass, G. A. (G), T, R. (Rethnaraj), V, M. (Muthuswamy), V, S. (Sundaramoorthi)   +6 more
core   +1 more source

Advancing Nitrate‐to‐Ammonia Electrocatalysis: Strategies in Catalyst Design, Electrolyte Engineering, and Performance Evaluation

Advanced Science, Volume 12, Issue 34, September 11, 2025.
This review highlights the latest advances in electrocatalytic nitrate reduction to ammonia, with a focus on catalyst design strategies, electrolyte engineering, and performance evaluation. Abstract The electrochemical reduction of nitrate for ammonia production not only offers a promising alternative to the traditional Haber–Bosch process, which ...
Juan Bai, Ziyou Dong, Xudong Jiang, Qianqin Zhou, Jiahao Zhao, Jun Mei, Ziqing Tan, Ting Liao, Ziqi Sun   +8 more
wiley   +1 more source