Results 141 to 150 of about 63,148 (319)

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

Integrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves, Noëlie Molbert, David M. Janz, Lauren D. Hayhurst, Jessica E. Brandt, Lauren Timlick, Vince P. Palace   +6 more
wiley   +1 more source

Application of Methods of Artificial Intelligence in Systems for Continuous Automatic Monitoring of Dust Concentration and Deposits in Mine Atmosphere [PDF]

arXiv
With the growth of coal production, the load on the production capacity of coal enterprises also increases, which leads to a concomitant increase in dust formation in both opencast and underground methods of mining coal deposits. Dust, generated during drilling, blasting operations, excavation, loading, crushing and transportation of mined rock is one ...
arxiv  

Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory

Deep Underground Science and Engineering, EarlyView.
The objective of this study is to reveal the underlying mechanisms behind the brittle‐ductile transition of the marble through a combination of experimental research and constitutive modeling. A series of triaxial compression and triaxial cyclic loading tests are conducted.
Susheng Wang, Qiang Zhang, Hao Luo, Zhinan Lin   +3 more
wiley   +1 more source

Investigation of Load Characteristics and Stress-Energy Evolution Laws of Gob-Side Roadways Under Thick and Hard Roofs

Applied Sciences
The stress environments of gob-side roadways (GSRs) are becoming increasingly complex during deep coal mining under thick and hard roofs. This leads to strong strata behaviors, including roadway floor heave, roof subsidence, and even coal bursts.
Jinlong Zhou, Junfeng Pan, Yongxue Xia, Wengang Liu, Taotao Du, Jianhong Wu   +5 more
doaj   +1 more source

Evaluation of the CO2 storage potential in CO2‐enhanced oil recovery: A case study of the Subei Basin, Jiangsu Province, China

Deep Underground Science and Engineering, EarlyView.
CO2‐enhanced oil recovery (CO2‐EOR) is an economically viable carbon capture, utilization, and storage (CCUS) technique that is widely practiced and contributes significantly to the achievement of carbon‐neutral cities. However, few studies have been conducted on CO2‐EOR source–sink matching involving different emission sources, different carbon ...
Lingxiang Wei, Dongjun Guo, Junyuan Ji, Zhilong Chen, Xiaohua Zhou, Mingming Liu, Xingxing Zhao, Hongjun Zheng, Lei Cai   +8 more
wiley   +1 more source

Development status and prospect on key technical equipment of high efficiency fully mechanized mining in super high and super long working face

Meitan kexue jishu
As an important energy support for China”s economic development, coal will remain dominant in energy consumption for a period of time in the future.
Mingzhong LI, Wenge ZHAO, Ruyu YAN, Jiachen WANG, Yajun LEI, Zheng YANG, Huijun HAN, Jinhu ZHANG, Yanjun FENG, Desheng ZHANG, Zhizeng HUANG   +10 more
doaj   +1 more source

Study on the diffusion and migration law of CO2 sequestrated in abandoned coal mine goaf

Deep Underground Science and Engineering, EarlyView.
The goaf of an abandoned coal mine, endowed with expansive fracture spaces and an abundance of residual coal, can be capable of sequestrating substantial quantities of CO2. The residual coal is the principal medium for the sequestration of CO2 in the form of adsorption and the amount of sequestration is considerable.
Haiyang Zhou, Yu Wu, Chunhui Liu, Haozhe Geng, Chenyu Yao   +4 more
wiley   +1 more source

Learning for Feasible Region on Coal Mine Virtual Power Plants with Imperfect Information [PDF]

arXiv
The feasible region assessment (FRA) in industrial virtual power plants (VPPs) is driven by the need to activate large-scale latent industrial loads for demand response, making it essential to aggregate these flexible resources for peak regulation. However, the large number of devices and the need for privacy preservation in coal mines pose challenges ...
arxiv  

Strain‐based modeling and analysis for rock blasting and geomechanics applications

Deep Underground Science and Engineering, EarlyView.
This paper introduces a novel strain‐based modeling approach for blasting and geomechanical applications, using measurable variables like particle velocity, strain, and displacement. By bypassing complex constitutive relations, strain‐based models capture critical blasting trends and full‐blast design parameters with minimal calibration.
Ruilin Yang
wiley   +1 more source

The lack of dynamic competition and the market insufficiency for agricultural productivity growth: Implications for the role of the state

Journal of the Agricultural and Applied Economics Association, Volume 1, Issue 4, Page 374-384, December 2022., 2022
Abstract This paper shows that there is lack of dynamic competition in agriculture, making the market mechanism of agriculture insufficient for bringing about technological innovations. The market insufficiency differs from market failures in that the former causes dynamic inefficiency and lack of growth while the latter causing static inefficiency in ...
Wanki Moon
wiley   +1 more source