Results 241 to 250 of about 1,939 (269)

Production Gaps Among Farmers With Disabilities Are Associated With Limited Technology

Agricultural Economics, Volume 57, Issue 4, July 2026.
ABSTRACT In sub‐Saharan Africa, agriculture is vital; however, the systematic exclusion of persons with disabilities from farming hinders sustainable development and social equity. Although several studies have analyzed productivity differentials across various dimensions of social exclusion, empirical evidence on technology access, farming efficiency,
Francis Tsiboe, Edward Martey, Jacob Asravor   +2 more
wiley   +1 more source

Mine intelligent ventilation event capture and scheme reasoning knowledge base. [PDF]

Sci Rep
Gong C, Dong J, Li Y, Li J, Xue J, Chen M, Liu J.   +6 more
europepmc   +1 more source

Research and Application of Mining-Induced Fracture Evolution and the Mechanism of Pressure Relief Gas Migration and Storage in Overlying Strata during Soft Rock Protective Layer Mining. [PDF]

ACS Omega
Cheng X, Yang Y, Zhao G, Chen Y.
europepmc   +1 more source

Deformation law of overlying rock strata during the initial mining period of a coal mining face: mechanical analysis. [PDF]

Sci Rep
Chuantian L, Zeyu L, Liting L, Yongliang H, Yuping F, Xiaoyuan S.   +5 more
europepmc   +1 more source

CFD Simulation Study on Nitrogen Injection to Suppress Coal Spontaneous Combustion in Goaf under Downward-Ventilation Conditions. [PDF]

ACS Omega
Wang J, Liu X.
europepmc   +1 more source

Fault-induced detection method for power supply lines in the cutting unit of coal shearer based on PIO-VMD-EDO. [PDF]

Sci Rep
Wang Y, Rong X, Shi H, Liu M, Guo X, Cheng Z, Wang W.   +6 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Reliability Analysis of Fully Mechanized Working Face Based on Appraisal and Distribution Method

Advanced Materials Research, 2015
Through the system reliability theory, the reliability of each subsystem of fully mechanized working face was got. The reliability of the working face was 0.82. By using the reliability of redistribution, the reliability of weak links of the system was improved to 0.966, so that the reliability of the working face was raised to 0.86. The reliability of
Guang Peng Zhang, Jun Liu
exaly   +2 more sources

Optimization Research of Hydraulic Support in Fully Mechanized Caving Face

Procedia Engineering, 2014
According to the problem that the high concentrations of fully mechanized caving face is difficult to control, the mathematical model of solving two-phase flow of gas and dust particles was built by established the k-ɛ-Θ-kp equation.
Nie Wen, Zhao Shuping
exaly   +2 more sources

Discussions on Some Security Mining Problems of Fully-Mechanized Top Coal Mining in “Three Soft” Large Inclined Angle Working Face

Procedia Engineering, 2011
This paper studies insecure factors of fully-mechanized top coal mining in “three soft” large inclined angle working face, which have impacted the normal generation badly, including rib spalling, roof fall and equipment slide, etc.
Yang Renshu, Guo Dongming
exaly   +2 more sources