Results 71 to 80 of about 391 (168)

Evaluation of Deep Learning Models for Polymetallic Nodule Detection and Segmentation in Seafloor Imagery

Journal of Marine Science and Engineering
Climate change has led to the need to transition to clean technologies, which depend on an number of critical metals. These metals, such as nickel, lithium, and manganese, are essential for developing batteries.
Gabriel Loureiro, André Dias, José Almeida, Alfredo Martins, Eduardo Silva   +4 more
doaj   +1 more source

Experimental Study on the Shear Characteristics of Deep-Sea Sediments Based on a Mining Machine Walking Test Platform

Advances in Civil Engineering
The exploitation and utilization of deep-sea mineral resources is an important measure to ensure the safety of resources. The shear characteristics of deep-sea sediments are fundamental parameters for the design of a machine for mining polymetallic ...
Xiaoyan Li, Lang Lei, Shengwei Zhao, Jenisha Singh, Zhou Li   +4 more
doaj   +1 more source

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Journal of Marine Science and Engineering
In response to the anticipated scarcity of terrestrial land resources in the coming years, the acquisition of marine mineral resources is imperative. This paper mainly summarizes the development of underwater collection and transportation equipment of polymetallic nodules in deep-sea mining. Firstly, the collection equipment is reviewed.
Xiuzhan Zhang, Yuhang Zuo, Jiakang Wei, Fei Sha, Zhenqin Yuan, Xuelin Liu, Mingshuai Xi, Jingze Xu   +7 more
openaire   +2 more sources

Assessment of natural radioactivity levels in polymetallic nodules and potential health risks from deep-sea mining

Journal of Hazardous Materials
The activity concentration of U-238, Ra-226, Pb-214, Bi-214, and Pb-210 was measured in samples of polymetallic nodules stored in the repository of the Interoceanmetal Joint Organization (IOM) based in Szczecin, Poland. The nodule samples were collected from the seabed of the Pacific Ocean, within the Clarion-Clipperton Zone, approximately 2000 ...
Agnieszka Beata Dołhańczuk-Śródka, Andrzej Kłos, Daniel Janecki, Zbigniew Marek Ziembik, Artur Skowronek, Agnieszka Strzelecka, Kamila Mianowicz, Tomasz Abramowski   +7 more
openaire   +3 more sources

Design and Control of a Bionic Underwater Collector Based on the Mouth Mechanism of Stomiidae

Journal of Marine Science and Engineering
Deep-sea mining has gradually emerged as a core domain in global resource exploitation. Underwater autonomous robots, characterized by low cost, high flexibility, and lightweight properties, demonstrate significant advantages in deep-sea mineral ...
Zexing Mo, Ping Ren, Lei Zhang, Jisheng Zhou, Yaru Li, Bowei Cui, Luze Wang   +6 more
doaj   +1 more source

Sediment plumes and financial modeling in the context of deep-sea polymetallic nodule mining

, 2021
Deep-sea polymetallic nodule mining commercial operations are close to becoming a reality. In recent years, research activity in the field has substantially increased, but there are yet many technical, environmental and financial challenges to be addressed.
openaire   +1 more source

Diversity and connectivity of bacterial communities in polymetallic nodule-rich abyssal plains (Eastern Tropical Pacific)

Frontiers in Marine Science
Polymetallic nodules of the abyssal seafloor are considered potential resources of nickel, cobalt, copper, as well as rare earth elements. The Clarion-Clipperton Fracture Zone (CCZ) hosts potential nodule mining sites licensed to several contractors for ...
Batuhan Cagri Yapan, Batuhan Cagri Yapan, Felix Janssen, Felix Janssen, Antje Boetius, Antje Boetius, Antje Boetius, Matthias Haeckel, Massimiliano Molari, Massimiliano Molari   +9 more
doaj   +1 more source

Study on Travel Path Planning of Deep-Sea Nodule Collector During Collection Operation

Haiyang Kaifa yu guanli
Polymetallic nodules are a current focus in the development of deep-sea mineral resources. The mining process requires nodule collectors to travel over large areas on the seafloor for nodule harvesting, and the travel path has significant impacts on both
KANG Yajuan, LIANG Shuya, LIU Shaojun
doaj  

Low-waste, single-step, sustainable extraction of critical metals from deep-sea polymetallic nodules. [PDF]

Sci Adv
Manzoor U, Lüttke T, Raabe D, Souza Filho IR.   +3 more
europepmc   +1 more source

Impact of the Mining Process on the Near-Seabed Environment of a Polymetallic Nodule Area: A Field Simulation Experiment in a Western Pacific Area. [PDF]

Sensors (Basel), 2023
Li B, Jia Y, Fan Z, Li K, Shi X.
europepmc   +1 more source