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Articles de revues sur le sujet « Test mining »

Auteur : Grafiati

Publié le 10 mars 2023

Mis à jour le 31 juillet 2025

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1

Yu, Guangming, Xiankun Zeng, Xianzhang Ling, Chuanbo Hao, and Kun Wang. "Study and Test on Development Regularity of Mining Speed of Coal Seam Separated from Overburden Strata." International Journal of Geology and Earth Sciences 6, no. 2 (2020): 15–19. http://dx.doi.org/10.18178/ijges.6.2.15-19.

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In the sedimentary coal stratum, rock stratum exhibits layered feature and has an obvious level. Overlying rock often produces separation along the level after the underground coal mining. But, due to the difference in the layers of rocks, the change of the mining process, the difference height in the level and other factors, the rule of separation is extremely complex. Therefore, in this paper, the allometric phenomenon, feature and laws of mining overburden separated strata are found by means of experiment and numerical simulation. The paper reveals the mechanical mechanism of allometric dev

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Bołoz, Łukasz, and Witold Biały. "Methods and Test Benches for Cutting Tools Testing—A Review." Energies 16, no. 1 (2022): 445. http://dx.doi.org/10.3390/en16010445.

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Mechanical mining is a widely used method of separating materials from the face to obtain a useful mineral (e.g., coal, metal ores, salts, and diamonds), to make underground workings (e.g., mine galleries, tunnels, and underground garages), level roads, shape slopes, or to dig ditches. Mechanical mining is applied in the mining branch, tunnelling, road, and construction industries. Depending on the mechanical properties of the rocks, most frequently described by uniaxial compression strength, various machines and tools are used. The methods of mining high-strength abrasive rocks that have been

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Saifan, Ahmad A., Emad Alsukhni, Hanadi Alawneh, and Ayat AL Sbaih. "Test Case Reduction Using Data Mining Technique." International Journal of Software Innovation 4, no. 4 (2016): 56–70. http://dx.doi.org/10.4018/ijsi.2016100104.

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Software testing is a process of ratifying the functionality of software. It is a crucial area which consumes a great deal of time and cost. The time spent on testing is mainly concerned with testing large numbers of unreliable test cases. The authors' goal is to reduce the numbers and offer more reliable test cases, which can be achieved using certain selection techniques to choose a subset of existing test cases. The main goal of test case selection is to identify a subset of the test cases that are capable of satisfying the requirements as well as exposing most of the existing faults. The s

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Dallmeier, Valentin, Nikolai Knopp, Christoph Mallon, Gordon Fraser, Sebastian Hack, and Andreas Zeller. "Automatically Generating Test Cases for Specification Mining." IEEE Transactions on Software Engineering 38, no. 2 (2012): 243–57. http://dx.doi.org/10.1109/tse.2011.105.

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Cui, Xipeng, Hongqi Shao, and Kailei Zhao. "Damage Depth Test and Numerical Simulation of Stope Floor in Mining Face." Geofluids 2023 (September 13, 2023): 1–15. http://dx.doi.org/10.1155/2023/2184880.

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The purpose of this study is to explore the development depth of rock layer rupture and analyze the developmental regularity of mining floor in Dongsi mining area of Xinzhi Coal Mine. Two kinds of pressure water testing methods and numerical simulation are used to study the failure characteristics of the bottom plate of the working face in Dongsi mining area of Xinxian Coal Mine. The results show that the failure of working face bottom plate starts from a certain range in front of the working face. With the advance of working face, the failure depth of mining bottom plate increases continuousl

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SINAGA, MARKUSDIAN, and ACHMAD ZAINI. "PERBANDINGAN PENDAPATAN USAHATANI PADI SAWAH (Oryza sativa L.) DI DALAM DAN DI LUAR AREAL TAMBANG (Studi Kasus Areal Tambang PT. Multi Harapan Utama di Desa Jonggon Jaya Kecamatan Loa Kulu) (The Income Comparison of Wetland Paddy Farming (Oryza sativa L.) in Inside and Outside of Mining Area (Case Study Mining Area of PT. Multi Harapan Utama in Jonggong Jaya Village Loa Kulu Subdistrict))." JURNAL AGRIBISNIS DAN KOMUNIKASI PERTANIAN (Journal of Agribusiness and Agricultural Communication) 3, no. 1 (2020): 57. http://dx.doi.org/10.35941/jakp.3.1.2020.3531.57-62.

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The purposes of this research were to determine the income of wetland paddy farming in inside and outside of mining area and to compare both of them. This research was conducted from August to October 2018 in minning area of PT. Multi Harapan Utama, Jonggon Jaya Village, Loa Kulu Subdistrict. Data collection was done through direct interview toward 33 respondents. Data was analyzed to count income and to do t test. The result of this research showed that the average income of wetland paddy farming in inside mining area was IDR12,049,299.99 ha-1ps-1 while the average income of wetland paddy far

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Chu, Na, and Wanzhi Ma. "Distribution of Large-Scale English Test Scores Based on Data Mining." Complexity 2021 (March 24, 2021): 1–10. http://dx.doi.org/10.1155/2021/5531595.

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Data mining technology is an effective knowledge mining and data relationship induction technology based on massive data, which is widely used in data analysis in many fields. In order to improve the utilization effect of students’ performance and meet the teaching needs of modern education, data mining technology can be applied to the existing performance database to mine the data information and treatment. Data mining technology is used to analyse and process the data stored in the student achievement management system, which provides the basis for improving the teaching quality and optimizi

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He, Jiang, Lin-Ming Dou, Wu Cai, Zhen-Lei Li, and Yan-Lu Ding. "In Situ Test Study of Characteristics of Coal Mining Dynamic Load." Shock and Vibration 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/121053.

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Combination of coal mining dynamic load and high static stress can easily induce such dynamic disasters as rock burst, coal and gas outburst, roof fall, and water inrush. In order to obtain the characteristic parameters of mining dynamic load and dynamic mechanism of coal and rock, the stress wave theory is applied to derive the relation of mining dynamic load strain rate and stress wave parameters. The in situ test was applied to study the stress wave propagation law of coal mine dynamic load by using the SOS microseismic monitoring system. An evaluation method for mining dynamic load strain

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Li, Pengyu, Zhenqi Hu, Yaokun Fu, Gensheng Li, Jiaxin Guo, and Dongzhu Yuan. "Normality Test for Influence Function of Mining Surface Subsidence Based on Network Observation Station." Mathematical Problems in Engineering 2022 (September 5, 2022): 1–12. http://dx.doi.org/10.1155/2022/2201996.

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Coal is the primary energy source in China, while underground mining is the mainstream way of coal mining. By triggering surface movement and deformation, underground mining can cause damage to arable land, buildings, roads, and so on, which is detrimental to the ecological environment in the mining area. In order to assess the severity of damage caused by this to the ground buildings and ecological environment in the mining area, it is necessary to predict mining-induced surface subsidence before the mining activities are carried out. Currently, the most used prediction method is the Probabil

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Liu, Zhixiang, Xiaoqing Dai, Shan Yang, and Yuxi Liu. "Experimental Platform Development of Similar Simulation and Mechanical Test for Undersea Metal Mining." E3S Web of Conferences 206 (2020): 03032. http://dx.doi.org/10.1051/e3sconf/202020603032.

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With the depletion of shallow metal resources in the land, the development of seabed resources has become a new direction. In order to achieve safe and efficient exploitation of seabed metal mineral resources, a similar simulation test platform was established for seabed mining of metal minerals in this paper. Similar simulation materials and the best material ratios were selected to make simulated specimens. A series of mechanical pressurization devices and model sample were prototyped and submarine simulation mining test was conducted. During the simulation mining test, stress and strain cha

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Iswandari, Anisa, and Nazaruddin Malik. "PENGARUH HARGA MINYAK DUNIA DAN SUKU BUNGA BI TERHADAP HARGA SAHAM PERTAMBANGAN JANUARI PERIODE 2006-JULI 2008." Jurnal Ekonomi Pembangunan 7, no. 1 (2016): 9. http://dx.doi.org/10.22219/jep.v7i1.3579.

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The purpose of this research has done to knowing crude oil price dan BI rate to stock price on mining. The hypothesis are guess that crude oil price influence to stock mining and BI rate influence to stock mining. Analysis instrument to knowing influence of crude oil price and BI rate is use multiple linier regression analysis. To know what is the reach of independent variable influence to dependent variable use a hypothesis testing with a partial test (t test), simultant test (f test) and to knowing how the independent variable representative to dependent variable use a godness of fit (R2). T

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12

Poulin, Robert, Jerusha Bennett, Antoine Filion, et al. "iParasitology: Mining the Internet to Test Parasitological Hypotheses." Trends in Parasitology 37, no. 4 (2021): 267–72. http://dx.doi.org/10.1016/j.pt.2021.01.003.

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13

A. Saifan, Ahmad. "Test Case Reduction Using Data Mining Classifier Techniques." Journal of Software 11, no. 7 (2016): 656–63. http://dx.doi.org/10.17706/jsw.11.7.656-663.

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Liao, Manqian, Jeffrey Patton, Ray Yan, and Hong Jiao. "Mining Process Data to Detect Aberrant Test Takers." Measurement: Interdisciplinary Research and Perspectives 19, no. 2 (2021): 93–105. http://dx.doi.org/10.1080/15366367.2020.1827203.

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Dransfield, Mark, Asbjorn Christensen, Peter Diorio, Marion Rose, and Peter Stone. "FALCON test results from the Bathurst Mining camp." ASEG Extended Abstracts 2001, no. 1 (2001): 1–4. http://dx.doi.org/10.1071/aseg2001ab032.

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Dransfield, Mark, Asbjorn Christensen, Marion Rose, Peter Stone, and Peter Diorio. "Falcon Test Results from the Bathurst Mining Camp." Exploration Geophysics 32, no. 3-4 (2001): 243–46. http://dx.doi.org/10.1071/eg01243.

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Zhang, Mingzhe, Yunzhan Gong, Yawen Wang, and Dahai Jin. "Mining constant information for readable test data generation." International Journal of Embedded Systems 14, no. 1 (2021): 9. http://dx.doi.org/10.1504/ijes.2021.112002.

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Williams, Ian, and Susan Moran. "Test program set data collection and data mining." IEEE Instrumentation & Measurement Magazine 13, no. 4 (2010): 34–40. http://dx.doi.org/10.1109/mim.2010.5521865.

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19

Peng, Gao-You, Ming-Zhong Gao, Jing Xie, et al. "Field test research on gas migration law of mining coal and rock." Thermal Science 23, no. 3 Part A (2019): 1591–97. http://dx.doi.org/10.2298/tsci180720228p.

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The fractures in coal and rock mass are the main channels of gas seepage, and understanding the gas migration law during mining is the precondition of gas control. The long-term in-situ monitoring of the abutment pressure, fracture networks and gas-flow in front of a mining face was carried out and the 1-D connectivity ratio of boreholes were calculated. The results showed that under the influence of mining, the fracture networks developed to the depth of rock stratum, and as far-field gas seepage channels, far-field gas continuously supplied the near-field gas. The gas flow in front of the mi

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20

Chu, Chengcheng. "Similarity Model Test of Coal Mining under Ordovician Limestone Nappe Aquifer." Geofluids 2022 (March 17, 2022): 1–12. http://dx.doi.org/10.1155/2022/9142345.

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Ordovician limestone in North China coalfield has the characteristics of karst fissure development and strong water yield. Coal mines in North China have been threatened by Ordovician limestone water for a long time. Taking the mining of 32 coal seam in the first eastern mining area of Qianyingzi coal mine in Anhui Province in China as the engineering geological prototype, this paper uses the self-developed fluid solid coupling similarity model test device to carry out the similarity model test of overburden stress and pore water pressure response of coal mining under Ordovician limestone napp

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21

Munir, Anita. "FUNDAMENTAL ANALYSIS OF MINING COMPANY PERFORMANCE." Journal of Management and Leadership 7, no. 2 (2024): 67–78. http://dx.doi.org/10.47970/jml.v7i2.756.

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The purpose of this study is to ascertain whether or not liquidity, leverage, and efficiency ratios which are fundamental factors have an identical or partial impact on profitability. Six oil and gas mining companies that are listed on the Indonesia Stock Exchange were used as sample companies in this study. Multiple linear regression analysis, the hypothesis test (determination coefficient test, partial test, and simultaneous test), and the traditional assumption test tools (autocorrelation, heteroscedasticity, and normality tests) are used in data analysis with SPSS version 25.0

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Ma, Zimin, Jiong Wang, Manchao He, Yubing Gao, Jinzhu Hu, and Qiong Wang. "Key Technologies and Application Test of an Innovative Noncoal Pillar Mining Approach: A Case Study." Energies 11, no. 10 (2018): 2853. http://dx.doi.org/10.3390/en11102853.

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The waste of coal resources, a complicated production process and slow mining speed seriously restrict the rapid development of longwall mining. To achieve effective mining, an innovative noncoal pillar mining approach (i.e., Gob-side Entry Retaining by Roof Cutting (GERRC)) was introduced. The mechanism of the GERRC approach and its three key technologies (i.e., roof support technology, directional presplit cumulative blasting technology and surrounding rock control technology) were studied by theoretical analysis, numerical simulation, laboratory and field experiments. The new approach was f

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23

Zeng, Xiao Tao, Ning Wang, Cong Jiang, Yun Yi Zhang, and Gang Chen. "The Three-Dimensional Similar Simulation of Stress Regular Pattern of Roof of Large Mining Height." Advanced Materials Research 945-949 (June 2014): 1190–95. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.1190.

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Based on the distribution of in-situ stress and the special conditions of the large mining height in one mining area, the author conducted the analogy stimulation test of the mine pressure behavior and the roadway deformation law. This research, mainly based on the geographical conditions of 1 to 2 coal seam of this mining area, stimulated the mine pressure behavior of the working face and the roadways, as the mining height is 5meters and 6meters. Through this analogy stimulation test, the mine pressure behavior of working face, in the mining process with large mining height, is analyzed and s

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Zhang, Chengye, Huiyu Zheng, Jun Li, Tingting Qin, Junting Guo, and Menghao Du. "A Method for Identifying the Spatial Range of Mining Disturbance Based on Contribution Quantification and Significance Test." International Journal of Environmental Research and Public Health 19, no. 9 (2022): 5176. http://dx.doi.org/10.3390/ijerph19095176.

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Identifying the spatial range of mining disturbance on vegetation is of significant importance for the plan of environmental rehabilitation in mining areas. This paper proposes a method to identify the spatial range of mining disturbance (SRMD). First, a non-linear and quantitative relationship between driving factors and fractional vegetation cover (FVC) was constructed by geographically weighted artificial neural network (GWANN). The driving factors include precipitation, temperature, topography, urban activities, and mining activities. Second, the contribution of mining activities (Wmine) t

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Stawowiak, Michał, and Marcel Żołnierz. "Mobile Test Stand Validation for Measuring Friction Coefficient of Carrying Rope with Friction Lining." Management Systems in Production Engineering 26, no. 3 (2018): 143–50. http://dx.doi.org/10.1515/mspe-2018-0023.

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Abstract The article presents the problem of friction between the rope and the friction liner of a mining hoist very important for the safety of human transport. The friction linings approved for use in the Polish mining industry and their basic mechanical properties are presented. Laboratory and operational methods of friction feedback are described. This article presents an innovative mobile research stand developed at the Department of Mining Mechanization and Robotisation. The mobile test stand validation was presented.

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Anggono, Alexander, Farhan Syahriza, and Firda Ivana Amelia. "ANALISIS PERBANDINGAN KINERJA KEUANGAN PERUSAHAAN SEKTOR PERTAMBANGAN DI INDONESIA DAN MALAYSIA." Jurnal Kajian Akuntansi dan Auditing 17, no. 2 (2022): 77–87. http://dx.doi.org/10.37301/jkaa.v17i2.86.

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This study is intended to compare the financial performance of mining companies in Indonesia and Malaysia from 2014-2019. In particular, to analyze financial performance of mining companies in both countries by applying liquidity ratios, profitability ratios, activity ratios, and market ratios. The comparison is conducted as many investors interested to invest in mining sectors, and both countries are having the similar potential and market characteristics. The number of samples employed in this study is 23 mining sector companies in Indonesia and 11 mining sector companies in Malaysia. The da

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Mardiana, Sarli, and Elvi Rahmi. "Pengaruh Struktur Aset dan Profitabilitas Terhadap Leverage Perusahaan Pertambangan Yang Terdaftar di Bursa Efek Indonesia Tahun 2014-2018." Jurnal Salingka Nagari 2, no. 1 (2023): 155–66. http://dx.doi.org/10.24036/jsn.v2i1.92.

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This study objectives to determine the effect of asset structure and profitability on leverage in mining companies listed on the IDX in 2014-2018, the effect of asset structure on the leverage of mining companies listed on the IDX in 2014-2018, the effect of profitability on the leverage of mining companies listed on the IDX in 2014-2018. This research is classified as a causative research with a population of 42 mining companies listed on the IDX in 2014-2018 and sample 16 companies. The type of data used is secondary data, namely the financial statements of mining companies sourced from the

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Yang, Zi Xian, Xiao Dong Ji, Hai Jiang, Yu Long Hu, and Miao Wu. "Test and Research on Vibration Characteristics of EBH300(A) Roadheader." Applied Mechanics and Materials 487 (January 2014): 352–56. http://dx.doi.org/10.4028/www.scientific.net/amm.487.352.

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Cantilever excavator is widely used in fully mechanized mining face at present domestic coal mine, Its high efficiency, reliable working state is the promise of mine production and safety production. In this paper, using the mining vibration recorder for EBH300(A) roadheader vibration signal acquisition, and using MATLAB to analyze in the time domain analysis. Its useful to understand the vibration characteristics of roadheader work, and of important realistic significance for the tunneling machine structure optimization design and researching on fault diagnosis.

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Wiska, Mayroza. "Menakar Struktur Kepemilikan Saham dan Kinerja Perusahaan." Jurnal Manajemen Bisnis 17, no. 3 (2020): 457. http://dx.doi.org/10.38043/jmb.v17i3.2498.

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ABSTRACTAnalysis of Performance Shareholding Structure of the Company (a mining company listed on the Indonesia Stock Exchange. In preparation of this paper, the authors have conducted research on the Indonesia Stock Exchange (Capital Market Information Center-Padang) Jl.Pondok 90 Padang. The purpose of this study was to determine the effect of ownership structure on corporate performance in the mining company listed on the Indonesia Stock Exchange (BEI. The analysis in this research using descriptive statistics, classic assumption test (test mulitikolonieritas, autokolerasi test, normality te

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Man, Kaiwen, Jeffrey R. Harring, and Sandip Sinharay. "Use of Data Mining Methods to Detect Test Fraud." Journal of Educational Measurement 56, no. 2 (2019): 251–79. http://dx.doi.org/10.1111/jedm.12208.

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Li, Zhenjun, and Xiaomo Yu. "Data mining technology for mechanical engineering computer test system." Mechanical Systems and Signal Processing 141 (July 2020): 106628. http://dx.doi.org/10.1016/j.ymssp.2020.106628.

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Rubio-Escudero, Cristina, Justo Valverde-Fernández, Isabel Nepomuceno-Chamorro, Beatriz Pontes-Balanza, Yoedusvany Hernández-Mendoza, and Alfonso Rodríguez-Herrera. "Data Mining Techniques Applied to Hydrogen Lactose Breath Test." PLOS ONE 12, no. 1 (2017): e0170385. http://dx.doi.org/10.1371/journal.pone.0170385.

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Fong, Joseph, Shi Ming Huang, and Hsiang Yuan Hsueh. "Online analytical mining association rules using Chi-square test." International Journal of Business Intelligence and Data Mining 2, no. 3 (2007): 311. http://dx.doi.org/10.1504/ijbidm.2007.015487.

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Ghafari, Mohammad, Konstantin Rubinov, and Mohammad Mehdi Pourhashem K. "Mining unit test cases to synthesize API usage examples." Journal of Software: Evolution and Process 29, no. 12 (2017): e1841. http://dx.doi.org/10.1002/smr.1841.

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Duan, Bao Fu, Meng Zhang, Lei Li, Hong Chun Li, and Hui Wu. "Technology of Safe and Efficient Submarine Deposit Mining." Applied Mechanics and Materials 90-93 (September 2011): 1960–64. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.1960.

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Submarine mining is unprecedented in China. XinLi Mining area, affiliated to Sanshandao Gold mine, is the first metal mining carrying out submarine mining exploitation in domestic. No occurrence of uniform settlement, cracking and collapse is the key point during the mining exploitation. According to the mining choosing principle and combining the production practice and relevant experience of Sanshandao Gold mine, the representative schemes are put forward. Two representative test stopes of 63# and 71# are chosen. After the comprehensive comparison and analysis, high-drift back-filling method

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Ma, Xingyin, Zhiyong Fu, Yurong Li, Pengfei Zhang, Yongqiang Zhao, and Guoping Ma. "Study on Surface Subsidence Characteristics Based on Three-Dimensional Test Device for Simulating Rock Strata and Surface Movement." Energies 15, no. 5 (2022): 1927. http://dx.doi.org/10.3390/en15051927.

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The main functions of a three-dimensional test device for simulating rock formations and surface movement affected by underground coal mining were described in detail, and a series of similar related tests were carried out. The device consisted of an outer frame, a pressurization unit, a pulling unit, and a coal seam simulation portion. Using this test device, supported by monitoring methods such as the three-dimensional laser scanner method, a model test study on the surface subsidence characteristics caused by coal seam mining was carried out. Combined with the field measurements, the transf

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Lauwers, Peter D. "Mining Claim Disputes in Ontario." Revue générale de droit 17, no. 4 (2019): 723–51. http://dx.doi.org/10.7202/1059228ar.

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1. General. Mining claim disputes in Ontario usually arise where a restaker attempts to dispute the validity of a claim under the provisions of the Mining Act. 2. Staking and Recording Requirements. Most mining claim disputes turn on whether there has been substantial compliance with the statutory staking requirements. A number of rules of thumb have evolved to assist the Mining Commissioner in making his decision as to whether there has been substantial compliance. These include the purpose test, the cumulative errors test, the reasonable excuse test, the equitable approach, the application o

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Suradi, Jessica Prania, and Selly Eriska Marisa. "ANALISIS DAMPAK HARGA MINYAK MENTAH DUNIA, TINGKAT SUKU BUNGA DAN KURS VALUTA ASING TERHADAP INDEKS HARGA SAHAM PERTAMBANGAN PERIODE 2014 – 2016." Jurnal Bina Manajemen 8, no. 2 (2020): 1–17. http://dx.doi.org/10.52859/jbm.v8i2.84.

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This study aims to look at the effect of world crude oil prices, interest rates, and foreign exchange rates on the mining sector stock price index for the 2014-2016 period. The research method used is descriptive statistical methods with quantitative research types. This study also uses analytical methods such as multiple regression analysis through t test and F test. Based on the F test (simultaneous) shows that world oil prices, interest rates, and foreign exchange rates affect simultaneously on the mining sector stock price index for the period 2014-2016 , while the t test (partial) shows t

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Sun, Xiu Juan. "Preprocessing of Examination Analysis System Data Based on Data Mining." Applied Mechanics and Materials 608-609 (October 2014): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amm.608-609.300.

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The development of science and technology has driven the progress of the examination system, through the development of database and intelligent, data mining, the database technology is also developed. But at present there are insufficient data mining scope, so must strengthen the examination analysis system has the function of data preprocessing, data mining to meet the needs of data mining algorithm, and accelerate the execution efficiency of data mining, to prevent the deviation, as a result more than the entire process of data mining and data pretreatment cost and time needed to about fort

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Dobryakova, N. N., O. S. Golynets, A. A. Lavrinenko, E. P. Vishnevskaya, and S. A. Epshtein. "Standard test method for mercury content evaluation in solid mineral fuels." Limnology and Freshwater Biology, no. 3 (2022): 1374–75. http://dx.doi.org/10.31951/2658-3518-2022-a-3-1374.

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Abstract. In addition to carbon, oxygen, hydrogen and nitrogen, fossil fuels contain other chemical elements, some of which may be hazardous to human health and the environment. Mercury and its compounds are one of the most dangerous among them. Therefore, information about mercury contents in coals and products of their processing is extremely important for both mining and processing enterprises and consumers. Mercury compounds may be accumulated in coal mining and processing wastes, and if they transfer into water-soluble forms, may lead to damaging of the environment. In the view of above,

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Dai, Fen Lei, Hai Rong Pang, and Wen Qiang Xie. "Development of Automatic Test System of Rig Comprehensive Performance." Advanced Materials Research 664 (February 2013): 1082–86. http://dx.doi.org/10.4028/www.scientific.net/amr.664.1082.

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The rig is widely used in coal mining production, its research and development, manufacture and use are required to test the performance indicators. For this, the paper researches and developments the comprehensive performance automatic test system in coal mining rig by using virtual instrument technology, and detailedly discussed the hardware configuration and software design scheme of the test system. After a hundred sets of various types testing and inspection of rig, the operation results shows that the automatic test system can meet the various performance parameters’ testing requirements

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Sahoo, Minati. "Community Forest and Rural Household Dependency in Mining Region." International Journal of Social Ecology and Sustainable Development 12, no. 4 (2021): 15–27. http://dx.doi.org/10.4018/ijsesd.2021100102.

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The present paper attempts to analyse the households' dependency on community forest for their livelihood and food security in the mining region of Odisha. Mining has caused the highest forest-land loss in Odisha. Using z-test, f-test, and t-test, it has been found that extraction of minerals has not only caused shifting of livelihood from forest-based to mining related work but also has significantly reduced the dependence of households on forest products for consumption. In addition, it has reduced the contribution of forest to food security as calorie intake from forest food is significantl

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Xingen, Ma, He Manchao, Hu Bing, et al. "Study on Key Parameter Design and Adaptability Technology of the 110 Mining Method for the Yuwang NO.1 Coal Mine in the Diandong Mining Area." Minerals 13, no. 2 (2023): 176. http://dx.doi.org/10.3390/min13020176.

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The 110 mining method is a high-efficiency entry-retaining technology without coal pillars or filling materials. At present, there is no precedent for its application in the Huaneng Group. In order to introduce this technology, it is planned to carry out experimental application research in the Yuwang NO.1 Coal Mine of the Huaneng Diandong mining area. The Yuwang NO.1 Coal Mine is a typical coal and gas outburst mine with a coal seam group. In view of the introduction of the 110 mining method under these conditions, first, the geological conditions of the Yuwang NO.1 Coal Mine in the Huaneng D

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Zhang, Meng, Hui He, Yu Zhang, et al. "Research on the Deformation and Control Technology of Surrounding Rock in Entry Retaining along the Gob Side." Advances in Civil Engineering 2020 (September 16, 2020): 1–18. http://dx.doi.org/10.1155/2020/8885439.

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This paper studies and introduces the successful case of gob-side entry retaining technology and the typical mining pressure law in Luan mining area, which is the main mining coal seam in Qinshui coalfield. Qinshui coalfield has an estimated coal reserve of 300 billion tons, accounting for 9.58% of the total national coal reserve in China, especially anthracite, chemical coal, and coking coal. The methods of field investigation, theoretical analysis, physical experiment, and industrial test are adopted. Through the field investigation, theoretical analysis, physical experiments, and industrial

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Mustafa, Raniah Ali, Haitham Salman Chyad, and Jinan Redha Mutar. "Enhancement in privacy preservation in cloud computing using apriori algorithm." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 3 (2022): 1747–57. https://doi.org/10.11591/ijeecs.v26.i3.pp1747-1757.

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Cloud computing provides advantages, like flexibly of space, security, cost optimization, accessibility from any remote location. Because of this factor cloud computing is emerging as in primary data storage for individuals as well as organisations. At the same time, privacy preservation is an also a significant aspect of cloud computing. In regrades to privacy preservation, association rule mining was proposed by previous researches to protect the privacy of users. However, the algorithm involves creation of fake transaction and this algorithm also fails to maintain the privacy of data freque

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Hong, Shunjun, and Xiaozhou Hu. "Study on the Non-Steady-State Wear Characteristics and Test of the Flow Passage Components of Deep-Sea Mining Pumps." Applied Sciences 12, no. 2 (2022): 782. http://dx.doi.org/10.3390/app12020782.

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In the process of conveying coarse-grained minerals, the internal flow-through passage components of mining pumps are subject to wear. The flow of coarse particles in such pumps is complex and changes constantly, making it necessary to study the non-steady-state wear characteristics and test the flow passage components. The evolution of the surface wear rate for the flow passage components during one third of a rotation cycle (120°) of a mining pump impeller with small, design, and large flow rates was analyzed in this study based on a discrete phase model (DPM). The flow that occurs during an

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Subashini, B., and D. Jeya Mala. "An Effective Approach to Test Suite Reduction and Fault Detection Using Data Mining Techniques." International Journal of Open Source Software and Processes 8, no. 4 (2017): 1–31. http://dx.doi.org/10.4018/ijossp.2017100101.

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Software testing is used to find bugs in the software to provide a quality product to the end users. Test suites are used to detect failures in software but it may be redundant and it takes a lot of time for the execution of software. In this article, an enormous number of test cases are created using combinatorial test design algorithms. Attribute reduction is an important preprocessing task in data mining. Attributes are selected by removing all weak and irrelevant attributes to reduce complexity in data mining. After preprocessing, it is not necessary to test the software with every combina

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Chen, Pan, and Lei Yu. "Use of Data Mining Technologies in an English Online Test Results Management System." International Journal of Emerging Technologies in Learning (iJET) 16, no. 09 (2021): 166. http://dx.doi.org/10.3991/ijet.v16i09.22743.

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The systematic management of English online test results can ensure the fairness of the test, guarantee the accuracy and safety of the test results, and reduce the consumption of manpower and materials. Unfortunately, the existing data mining and management strategy for learner scores cannot track the learning process or score change of learners. This paper innovatively applies the trajectory data mining technology to the design of an English online process test results management system. After analyzing the functional requirements of the system, four basic information lists were constructed i

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Abdul, Gafaruddin*1 La Rianda2 Weka Widayati1 Dasmin Sidu3 &. Novita Pramahsari Putri4. "THE IMPACT OF GOLD MINING ON THE LOCAL PEOPLE'S INCOME." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES6 6, no. 10 (2019): 5–14. https://doi.org/10.5281/zenodo.3517247.

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Bombana district has 205.400 ha with volume 1.125.000 ton reserves of mineral resources gold mining. Mining activity in Bombana has been done since september 2008<sup>th. </sup>This study was to know changing people’s livelihood before and after gold mining, (2) Analyzed people access on gold mining, and (3) Analyze impact of gold mining on increasing people’s income. This study was descriptive analysis method with sign test analysis method. The population of this study was 5.573 north Rarowatu societies with 95 respondents were taken by cluster sampling method. The result showed i

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Liu, Peng Liang. "Cemented Filling Mining Technology in Continuous Miner Filling Mining Face." Advanced Materials Research 1010-1012 (August 2014): 1511–17. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.1511.

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Based on interval arrangement characteristics of the mined branch roadways and pillars in continuous miner filling mining gob,the cemented filling mining thought which divided mining and filling both into two stages was put forward.The first stage was mining branch roadways and then filling gob with cemented materials in time, and the second stage was mining pillars and filling gob with the first stage filling body support when it meet designed strength. Industrial field test showed that branch roadways were smoothly mined and filled, filling body strength meet demand and pillars were safety m

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