Results 121 to 130 of about 4,472,603 (224)

Evolution characteristics of overburden structure in inclined fully mechanized caving under residual coal pillars of the upper layer

Gong-kuang zidonghua
In the stratified fully mechanized caving of ultra-thick coal seams, the inclined layout of upper and lower caving faces leads to lower fully mechanized caving face intermittently crossing residual coal pillars of the upper layer. This results in complex
LIU Yong, WANG Hongwei, WU Xuesong, TIAN Chengpeng, GUAN Rongfu, NIE Yunxiao, FAN Zhiwei, CAO Peipei   +7 more
doaj   +1 more source

Simulating Agroecology Policy Options for the Resilience of Smallholder Food Security to Climate Shocks

Climate Resilience and Sustainability, Volume 5, Issue 2, December 2026.
Climate shocks and the agroecology–resilience nexus of smallholders. Summary of key findings: Agroecology increases smallholder resilience capacity by 8.7% in the short term under a decreased rainfall scenario, a projected 11% decline in precipitation reduces resilience by 5.6% and 14.2% in the short and long terms, respectively, and a policy‐induced ...
Gilbert Dagunga, Michael Ayamga, Wolfram Laube, Isaac Gershon Kodwo Ansah, Joseph A. Awuni, Bekele Hundie Kotu, Francis Muthoni, Gideon Danso‐Abbeam, Abiodun A. Ogundeji   +8 more
wiley   +1 more source

Research on the Dust Transport Law in Large Mining Height Fully Mechanized Mining Face

Scientific Journal of Technology
The fully mechanized mining face with high mining height has always been a high-risk area for coal mine dust pollution. In order to further understand the spatiotemporal transport law of dust in the zoning of the high mining height fully mechanized mining face, the 122109 high mining height fully mechanized mining face of Caojiatan Coal Mine was taken ...
openaire   +1 more source

Design of automation control system of fully-mechanized coal face

, 2015
In order to realize collaborative automation running of equipments on fully-mechanized coal face, an automation control system of fully-mechanized coal face was designed, composition and function realization of three machine control system, belt conveyor
PENG Qingguo, ZHENG Jiasong, SU Zhengfei, ZHANG Xiansheng, DING Congshi, ZHANG Xianyu, LYU Lei   +6 more
core   +1 more source

Exploring Recreational Conflict on Shared Backcountry Tramping and Mountain Biking Tracks in Aotearoa New Zealand

New Zealand Geographer, Volume 82, Issue 3, December 2026.
ABSTRACT In a move away from exclusive use by modality, a number of shared tramping and mountain biking tracks have been developed in New Zealand. We ask: On shared tracks, what tensions arise and how are they experienced? Using data from online surveys of track‐users, we examine bikers' and trampers' perspectives and experiences of conflict.
Joe Fagan, Robin Kearns, Laura Bates
wiley   +1 more source

Automatic control system of top coal caving on fully-mechanized coal mining face

, 2015
In view of problems of large randomness, low efficiency of coal caving of artificial operation for top coal caving mining face, an automatic control system of top coal caving on fully-mechanized coal mining face was designed.
WEI Wenya
core   +1 more source

Neoextractivism With Neocolonial Traits: Agribusiness Expansion and Territorial Conflict in Pontal do Paranapanema, Brazil

Bulletin of Latin American Research, Volume 45, Issue 4, October 2026.
ABSTRACT This article examines how the expansion of agribusiness and water infrastructure has reconfigured Pontal do Paranapanema, Brazil, through neoextractivist dynamics with neocolonial traits. Drawing on documentary analysis and socio‐environmental indicators, it investigates how transnational capital, state mediation and integration into global ...
Vinicius Genaro, Antonio Aledo, José Paulo Peccinini Pinese, Felipe Sáez‐Ardura   +3 more
wiley   +1 more source

Spatio-temporal evolution laws of overburden fractures under the coupling effect of water and rock in large-height fully mechanized coal mining faces

采矿与岩层控制工程学报
The development of fracture zones in the overlying strata due to mining activities has a direct impact on the ground pressure behavior and water gushing & sand collapse disasters at the fully mechanized mining face, and is a fundamental issue restricting
Fangtian WANG, Yunqing ZHANG, Tiankuo TANG, Cun ZHANG, Xu WANG, Yu WU, Yushun ZHOU   +6 more
doaj   +1 more source

From Mine to Meal: How Critical Minerals Shape the Future of Food

Food and Energy Security, Volume 15, Issue 5, September/October 2026.
ABSTRACT Food systems are increasingly recognised as material‐intensive socio‐technical systems rather than solely biological or land‐based systems. Yet, critical minerals, which underpin both agricultural inputs and emerging clean energy technologies, remain an under‐recognised determinant of modern food security.
Helen Onyeaka, Keleenna Onyeaka, Phemelo Tamasiga, Neha Mehta   +3 more
wiley   +1 more source

Sparse crowd sensing method for methane concentration field in coal mine fully mechanized mining face

Meikuang Anquan
In view of the lack of methane monitoring points in coal mine fully mechanized mining face, it is difficult to achieve for high coverage methane concentration monitoring in the mining face area.
Jing ZHANG, Dou ZHA, Shijia QU, Yuguang XU   +3 more
doaj   +1 more source