Results 101 to 110 of about 13,666 (200)

Marine fisheries along the southwest coast of India [PDF]

Marine fisheries production in India has increased from 0.5 million t in 1950 to 2.47 million t in 1997. The gross value of fisheries landings in India was US$2.37 billion in 1997.
Immanuel, S., Kurup, K.N., Pillai, V.N., Srinath, M., Vivekanandan, E.   +4 more
core  

Research on the Mechanism and Control of Spalling on 8 m Fully Mechanized Mining Face in Huoxi Coalfield

Applied Sciences
The great success of fully mechanized mining with a large mining height of 8 m and above in Mongolia and Shaanxi proves the feasibility of this technology. Although fully mechanized mining with a large mining height significantly increases the production
Lin Meng, Mei Wang, Chenlong Wang, Yongkang Yang   +3 more
doaj   +1 more source

Coastal resources management, policy and planning in Bangladesh [PDF]

This paper reviews the coastal fishery resources of Bangladesh emphasizing the coastal environment, capture fisheries and management issues relative to the sector. BangladeshÆs Exclusive Economic Zone (EEZ) covers an area of about 166 000 km2. This area
Chowdhury, Z.A., Rahman, M.M., Sada, M.N.U.   +2 more
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Key technologies and practices for safe, efficient, and intelligent mining of deep coal resources

Meitan kexue jishu
The geological conditions of deep coal resources are complex, and intelligent mining is the only way for the safe, efficient, and green development of deep coal resources. The complete set of intelligent mining technology and equipment that adapts to the
WEI LI, Xikui SUN
doaj   +1 more source

Present situation of support technology and equipment in fully mechanized mining face with supermining height

Meikuang Anquan
One-time full-thickness mining with ultra-high mining height has the characteristics of high mining efficiency and high resource recovery rate. In order to explore the further breakthrough of ultra-high mining height fully mechanized mining technology and analyze the feasibility of surrounding rock stability control of its working face, on the basis of
Huijun HAN, Guofa WANG, Mingzhong LI, Jinhu ZHANG, Yanpeng LI   +4 more
openaire   +1 more source

Does Firm Ownership Differentiate Environmental Compliance? Evidence from Indian Chromite Mining Industry [PDF]

This paper compares the environmental performance of public and private firms in the context of Indian chromite mining industry. It proposes a new methodology to measure firms’ environmental performance in a multidimensional framework.
Das, Amarendra
core   +1 more source

Target behavior recognition of fully mechanized mining face based on multi-information self-attention

Meitan xuebao
Recognizing the behavior of key equipment and personnel in fully mechanized mining faces is the foundation and core of intelligent sensing of mining environment information.
Yi YANG, Yanlei YANG, Tian WANG, Keping WANG   +3 more
doaj   +1 more source

Multi-dimensional constraint-based coal mining machine cutting path planning technology

Meitan xuebao
The cutting path planning technology for coal mining machines is one of the key technologies for achieving intelligent mining in fully mechanized mining faces.
Shuyang SONG, Shibo WANG, Yun WANG, Lijie WANG, Dongshuai SONG   +4 more
doaj   +1 more source

Mercury Pollution Due to Small-Scale Gold Mining in the Philippines: An Economic Analysis [PDF]

The study reviews small-scale gold mining in the Philippines and assesses economically mercury pollution and other development problems of the industry.
Asirot, Jasminda, Israel, Danilo C.
core  

Digital twin-driven control construction for three machines of smart coal mining face

Meitan xuebao
In order to further improve the intelligent control level of fully mechanized mining equipment in coal mines and achieve the normalized operation of intelligent mining face, this paper proposes the related concepts and system architecture of intelligent ...
Xiusong YOU, Shirong GE, Yinan GUO, Bing MIAO   +3 more
doaj   +1 more source