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Exploring Alternative Policies to Reduce Electricity Subsidies in Indonesia [PDF]

open access: yesE3S Web of Conferences, 2021
Electricity subsidies in Indonesia remain high and tend to increase. Existing studies generally propose electricity subsidy reform through economic price adjustment; however, this option potentially arises political and social conflicts.
Nurliyanti Vetri   +6 more
doaj   +1 more source

3D Global Localization in the Underground Mine Environment Using Mobile LiDAR Mapping and Point Cloud Registration

open access: yesSensors, 2022
This study proposes a 3D global localization method that implements mobile LiDAR mapping and point cloud registration to recognize the locations of objects in an underground mine. An initial global point cloud map was built for an entire underground mine
Jieun Baek   +3 more
doaj   +1 more source

Study of the material composition to develop a rational technology for the enrichment of porphyry copper ores from the Yoshlik I and Kalmakyr deposits [PDF]

open access: yesE3S Web of Conferences, 2023
The task of the tests was to study the material composition in order to develop a rational technology for the enrichment of porphyry copper balance and off-balance ores of the Yoshlik I and Kalmakyr deposits to obtain collective, copper- and molybdenum ...
Jumaeva Kholida   +4 more
doaj   +1 more source

Integration of geophysical information with geological cartography for mineral resources research and other applications in Colombia: examples from the Serranía de San Lucas, Antioquia Batholith and eastern Amazonia

open access: yesBoletín Geológico, 2022
La información geofísica aerotransportada es una herramienta para la interpretación de características geológicas. Las variaciones que se observan en los datos magnéticos y gamma espectrométricos aerotransportados son utilizados, principalmente, como ...
Norma Marcela Lara   +9 more
doaj   +1 more source

Investigating the Aluminothermic Process for Producing Ferrotitanium Alloy from Ilmenite Concentrate

open access: yesMetals, 2020
The aluminothermic process is used for producing ferrotitanium alloy (FeTi) from an ilmenite concentrate. In this study, based on thermodynamic calculations and experiments, we investigated the effects of adding varying amounts of exothermal agent ...
Ji-Hyuk Choi   +4 more
doaj   +1 more source

Characteristics and origin of a new type of polyhalite potassium ore in the Lower Triassic Jialingjiang Formation, Puguang area, northeastern Sichuan Basin, SW China

open access: yesJournal of Palaeogeography, 2021
A new type of polyhalite potassium ore (NTPPO) was found in the Lower Triassic Jialingjiang Formation, NE Sichuan Basin, SW China. It is water soluble, therefore can be exploited using the water-solution method, and is of great potential of economic ...
Wen-Jun Shang   +7 more
doaj   +1 more source

The brine depth of the Khorat Basin in Thailand as indicated by high-resolution Br profile

open access: yesScientific Reports, 2021
Bromine contents of a 17-cm halite core from drilling hole of K203 in the Khorat Basin were analysed at 1 cm intervals (17 samples in total). The Br contents range from 99 to 184 ppm with a rapid variation.
Lijian Shen   +6 more
doaj   +1 more source

Hydrometallurgical process development to recycle valuable metals from spent SCR deNOX catalyst

open access: yesScientific Reports, 2021
Spent catalyst, containing vanadium and tungsten oxide in a TiO2 glass fiber matrix, pose a risk of environmental contamination due to the high toxicity of its metal oxides if leached into the soil when disposed in landfills. Due to the increasing demand
Jong Hyuk Jeon   +3 more
doaj   +1 more source

Analysis and Prediction of Landscape Ecological Risk in Yellow River Basin

open access: yesShuitu baochi tongbao, 2022
[Objective] The land use changes in the Yellow River basin during the past two decades were analyzed in order to predict land use in 2030, analyze the landscape pattern index, reveal ecological risk status, and assist with landscape protection ...
Du Wentao   +4 more
doaj   +1 more source

Bismuth fire assay preconcentration and empirical coefficient LA-ICP-MS for the determination of ultra-trace Pt and Pd in geochemical samples

open access: yesScientific Reports, 2022
In this work, a novel method of solid sample pretreatment technique of bismuth fire assay (Bi-FA) combined with solid sample determination by laser ablation ICP-MS (LA-ICP-MS) was reported for the determination of ultra-trace Pt and Pd in geochemical ...
Wenshan Ni   +6 more
doaj   +1 more source

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