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Relief of the Aranđelovac municipality area [PDF]

open access: yesZbornik Radova: Geografski institut "Jovan Cvijić", 2007
Relief of the Aranđelovac municipality area was formed under the power of exogen and endogen forces. However, since the endogen shapes were largely reformed on the surface, the paper paid special attention to exogen - morphosculptural processes ...
Menković Ljubomir, Košćal Milan
doaj   +2 more sources

Analysis of PM2.5, PM10, and Total Suspended Particle Exposure in the Tema Metropolitan Area of Ghana

open access: yesAtmosphere, 2021
Dust levels around the Tema industrial area of the Greater Accra Region have seen no reduction in recent years. Even though at some periods in time a natural drop in dust pollution levels is assured, the overall variation characteristics of the ...
Smart Asomaning Sarpong   +4 more
doaj   +1 more source

Study and Design of the Mitigation Structure of a Shell PBX Charge under Thermal Stimulation

open access: yesCrystals, 2023
To study the design method and pressure relief effect of the mitigation structure of a shell under the action of thermal stimulation, a systematic research method of theoretical calculation-simulation-experimental verification of the mitigation structure
Jiahao Liang   +7 more
doaj   +1 more source

Study on pressure relief effect of repeated mining in cross-stacked protective face

open access: yesMeikuang Anquan, 2022
In order to study the pressure relief effect of repeated mining on the cross-stacked protective layer working face, a FLAC3D numerical model was established by taking 15303 and 8123 cross-stacked protective layer working face in Lunan sub-district of ...
XU Chao   +6 more
doaj   +1 more source

Research on Optimization of Coal Pressure Relief Borehole Parameters under High-Stress Conditions

open access: yesGeofluids, 2021
Determining the parameters of boreholes drilled for relieving pressure in coal seams is the key preventing and controlling rock bursts in boreholes of large diameter.
Heng Zhang   +4 more
doaj   +1 more source

Blasting pressure relief technology for preventing rock burst in deep heading roadway

open access: yesGong-kuang zidonghua, 2022
In order to solve the problems of low pressure relief intensity, untimely pressure relief and high labor intensity in the prevention and control of rock burst by using large diameter borehole pressure relief in deep heading roadway, taking the 401103 ...
MA Wentao   +4 more
doaj   +1 more source

Relief-Forming Role of the Ice Factor in the Coastal Area of the North-West Part of the Black Sea

open access: yesВісник Харківського національного університету імені В.Н. Каразіна: Серія Екологія, 2021
Purpose. To define the role of the ice factor in morpholithodynamics of the coastal area of the North-West part of the Black Sea. Methods. Field and in-office research was carried out in the North-West part of the Black Sea during the winter seasons ...
O. B. Murkalov
doaj   +1 more source

Formation Mechanism for Upland Low-Relief Surface Landscapes in the Three Gorges Region, China

open access: yesRemote Sensing, 2020
Extensive areas with low-relief surfaces that are almost flat surfaces high in the mountain ranges constitute the dominant geomorphic feature of the Three Gorges area.
Lingyun Lv   +5 more
doaj   +1 more source

Study on stress evolution law of upper coal seam in long‐distance advance mining of lower coal seam

open access: yesEnergy Science & Engineering, 2023
With the shift of coal resources to deep mining, the occurrence of long‐distance coal seams has increased, and protective layer mining is facing new challenges.
Shengjie Fang   +5 more
doaj   +1 more source

Green Technology for Disaster Relief and Remote Areas [PDF]

open access: yes2014 ASEE Annual Conference & Exposition Proceedings, 2020
AbstractHurricanes, cyclones, tornadoes, earthquakes and flooding are natural disasters that canhappen at any time anywhere. The electrical power is usually the first critically importantservice to be lost affecting homes, hospitals, schools, food stores and other vital services.In the aftermath of these disasters photovoltaic (solar electric) energy ...
Salahuddin Qazi, Farhan Qazi
openaire   +2 more sources

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