Accedi

Bibliografie tematiche / Shape mining / Articoli di riviste

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Shape mining.

Articoli di riviste sul tema "Shape mining"

Autore: Grafiati

Pubblicato: 11 gennaio 2025

Ultima modifica: 31 luglio 2025

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Shape mining".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Graening, Lars, and Bernhard Sendhoff. "Shape mining: A holistic data mining approach for engineering design." Advanced Engineering Informatics 28, no. 2 (2014): 166–85. http://dx.doi.org/10.1016/j.aei.2014.03.002.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Bartocci, Ezio, Jyotirmoy Deshmukh, Felix Gigler, Cristinel Mateis, Dejan Nickovic, and Xin Qin. "Mining Shape Expressions From Positive Examples." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 39, no. 11 (2020): 3809–20. http://dx.doi.org/10.1109/tcad.2020.3012240.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Losada, Sebastian, Mengjiao Wang, and David Santillo. "Deep-sea mining interests cannot shape research." Science 388, no. 6746 (2025): 481. https://doi.org/10.1126/science.adv0340.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Kodama, Hiroyuki, Toshiki Hirogaki, Eiichi Aoyama, and Keiji Ogawa. "Investigation of End-Milling Condition Decision Methodology Based on Data Mining for Tool Catalog Database." International Journal of Automation Technology 6, no. 1 (2012): 61–74. http://dx.doi.org/10.20965/ijat.2012.p0061.

Testo completo

Abstract (sommario):

Data mining supports decision making about reasonable end-milling conditions. Our research objective is to excavate new knowledge with mining effect by applying data mining techniques to a tool catalog. We use hierarchical and nonhierarchical clustering data mining with catalog data by applying multiple regression analysis and focusing on the catalog data shape element. We visually grouped end-mills on the basis of tool shape, considering the ratio of tool shape dimensions, by employing the K-means method. We found that factors related to blade length and full length ratio are effective in for

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Pysmennyi, Serhii, Mykhailo Fedko, Nataliia Shvaher, and Serhii Chukharev. "Mining of rich iron ore deposits of complex structure under the conditions of rock pressure development." E3S Web of Conferences 201 (2020): 01022. http://dx.doi.org/10.1051/e3sconf/202020101022.

Testo completo

Abstract (sommario):

The purpose of research is to increase the ore mass extraction ratio when mining rich iron ores by changing the shape of the stope chamber, as well as to substantiate its stable parameters under the conditions of the rock pressure manifestation. Used in mines existing methodologies for determining the structural elements of mining system are based on calculated equivalent spans of outcropping the stope chambers, which have a rectangular or tent shape. For the first time using the ANSYS software package, it has been determined that the formation of a compensation chamber of quasi-parabolic shap

Gli stili APA, Harvard, Vancouver, ISO e altri

6

He, Fulian, Bingquan Liu, Liang Li, et al. "Study on the Key Factors of Terminal Mining Line Layout in Repeated Mining of Close-Distance Thick Coal Seams." Advances in Materials Science and Engineering 2022 (September 12, 2022): 1–12. http://dx.doi.org/10.1155/2022/9724275.

Testo completo

Abstract (sommario):

In order to mater the reasonable layout basis of the terminal mining line position in the repeated mining of close-distance thick coal seams, taking Yan mine as the engineering background, we conducted theoretical analyses, numerical simulations, and field measurements to study the action mechanism of the stress arch. The results show that (1) with repeated mining, the shape of the left and right half arches of the stress arch changes in the order of time and space until it is stable; (2) the shape of the stress arch is highly related to the distribution of abutment pressure in the working fac

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Wei, Qian. "Product Shape Design Scheme Evaluation Method Based on Spatial Data Mining." Mathematical Problems in Engineering 2022 (July 20, 2022): 1–8. http://dx.doi.org/10.1155/2022/3231357.

Testo completo

Abstract (sommario):

The stage of product modeling design implies a lot of complex tacit knowledge, which is the embodiment of the design concept centered on product modeling design and is also the hot spot and difficulty of modern design theory and method research. Aiming at the evaluation and decision of product modeling design scheme, a decision-making method of approaching ideal solution ranking based on grey relational analysis was proposed, which realized the convergence of tacit knowledge. The empty association rule is an important knowledge content of spatial data mining. A fuzzy genetic algorithm can solv

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Toyota, Hiroko, Daiki Ito, Shuya Suzuki, Ryohei Hara, and Junxiang Wang. "Mapping vanished mountain shapes – The struggle between limestone mining and establishing a natural park at Mount Bukō –." Abstracts of the ICA 1 (July 15, 2019): 1–2. http://dx.doi.org/10.5194/ica-abs-1-368-2019.

Testo completo

Abstract (sommario):

<p><strong>Abstract.</strong> This report searches for the Japanese view of beauty and nature through a study of the mapping of the transformation of a mountain’s shape. A normal map primarily intends to express existing shapes, but this report maps the vanished shape of a mountain from the limestone mining of its slopes. This is done to consider how its vanished shape has impacted the Japanese view of beauty and nature. The mountain studied is Mount Bukō located in Chichibu City and Yokozemachi in Saitama Prefecture. Mount Bukō is suitable for limestone mining, and during th

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Shu, Longyong. "Study on Gas Extraction Technology for Goaf Using L-Shaped Borehole on the Ground." Applied Sciences 14, no. 4 (2024): 1594. http://dx.doi.org/10.3390/app14041594.

Testo completo

Abstract (sommario):

This study aimed to examine gas extraction technology in the goaf of an L-shaped borehole in the mining fissure zone of a short-distance coal seam group. The numerical simulation method was used to analyze the failure law of overlying rock during mining, and a mathematical model was established for gas migration in the mining overburden. Finally, gas extraction tests were performed for the L-shaped borehole in the mining fissure zone. The results showed that as the coal mining project progressed, the damage area of the overlying strata in the goaf became larger, and the plastic damage area of

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Qiao, Fukang, Xinqiu Fang, Ningning Chen, Minfu Liang, Gang Wu, and Fan Zhang. "Research on Three-Dimensional Shape Curve Reconstruction Technology for a Scraper Conveyor on an Intelligent Working Face." Sensors 23, no. 21 (2023): 8755. http://dx.doi.org/10.3390/s23218755.

Testo completo

Abstract (sommario):

“Three straight and two flat” is the inevitable demand when realizing the intelligent mining of a fully mechanized mining face. To address the crucial technical issue of lacking accurate perception of the shape of the scraper conveyor during intelligent coal mining, a three-dimensional curvature sensor involving fiber Bragg grating (FBG) is used as a perceptive tool to conduct curve reconstruction research based on different local motion frames and to reconstruct the shape of the scraper conveyor. Firstly, the formation process of the ‘S’-shaped bending section of the scraper conveyor during t

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Wang, Su, Hanpeng Wang, Zhide Wu, Mengtian Li, and Wenbin Xing. "Physical simulation technologies and testing system for cavern shape control from single-well solution mining in rock salt." Review of Scientific Instruments 93, no. 12 (2022): 125101. http://dx.doi.org/10.1063/5.0108039.

Testo completo

Abstract (sommario):

The shape of the salt cavern is very important for the safe operation of gas storage facilities in rock salt. A physical simulation test is an effective means to study the shape control of salt caverns. To accurately simulate the process and parameters of single-well solution mining in rock salt, we developed simulation technologies and a testing system for cavern shape control. Based on the flow similarity principle, we established a sealing technology for dynamic-static disturbance and successfully replicated the solution mining process for forward and reverse circulations. Based on the requ

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Wu, Wei Dong, Hua Liang Li, and Hong Rui Xue. "Dynamic Analysis of Planetary Mechanism for the Cutting Part of Coal Shearer." Applied Mechanics and Materials 160 (March 2012): 356–60. http://dx.doi.org/10.4028/www.scientific.net/amm.160.356.

Testo completo

Abstract (sommario):

The transmission load on planetary gear to the cutting part of coal mining machine is bigger, and the force is uneven stress while the gear driving. In order to solve this problem, and puts forward the coal mining machine cutting part planetary transmission gear contact dynamic meshing analysis method. This paper build entity modeling of coal minning machine cutting part transmission gear by established 2d model by CAXA and import PRO/E, and by using ABAQUS/Explicit as the simulation platform, assembly and analysis with dynamic meshing contact, get in gear stress of gear tooth distribution, an

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Hussein, Rana, Alberto Lerner, Andre Ryser, Lucas David Bürgi, Albert Blarer, and Philippe Cudre-Mauroux. "GraphINC: Graph Pattern Mining at Network Speed." Proceedings of the ACM on Management of Data 1, no. 2 (2023): 1–28. http://dx.doi.org/10.1145/3589329.

Testo completo

Abstract (sommario):

Graph Pattern Mining (GPM) is a class of algorithms that identifies given shapes within a graph, e.g., cliques of a certain size. Any area of a graph can contain a shape of interest, but in real-world graphs, these shapes tend to be concentrated in areas deemed skewed. Because mining skewed areas can dominate GPM computations, the overwhelming majority of state-of-the-art GPM techniques break such areas into many small parts and load balance them across servers. This paper takes a diametrically opposite approach: we suggest a framework that concentrates rather than divides the skewed areas. Ou

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Zhang, Jianguo, Xiaofeng Qin, Shuaitao Liu, Haijian Su, Zhanbiao Yang, and Guochuan Zhang. "Study on Overburden Fracture and Structural Distribution Evolution Characteristics of Coal Seam Mining in Deep Large Mining Height Working Face." Sustainability 15, no. 18 (2023): 13365. http://dx.doi.org/10.3390/su151813365.

Testo completo

Abstract (sommario):

Coal mining has gradually entered the deep mining era, and large-height mining is an important way to mine thick coal seams in the deep. The high coal wall will inevitably make the distribution of the overburden structure in the coal mining face more complicated, and the large buried depth will also cause more intense mine pressure. The study of the distribution and evolution of the overburden structure and stress in the mining site can provide theoretical guidance for safe mining. In this work, a physical similarity modeling test was carried out based on the physical–mechanical parameters of

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Yu, Kai, Zhaoxiang Mu, and Jifeng Lu. "Research on the Model and Pattern of Community Opinion Dis-Semination Regarding Coal Mines." Mathematics 12, no. 24 (2024): 3914. https://doi.org/10.3390/math12243914.

Testo completo

Abstract (sommario):

Residents of coal mining communities include both coal mine workers and local residents, making the guidance of public opinion essential for maintaining social stability in such communities. Therefore, this paper utilizes an improved word2Vec model to extract factors influencing public opinion from a large number of accident cases. It then develops a coal mining community public opinion dissemination model based on game theory, focusing on two groups: official media and opinion leaders. By integrating cellular automata (CA) and agent-based modeling, this study examines the dissemination patter

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Wang, Jiachen, Weijie Wei, and Jinwang Zhang. "Theoretical description of drawing body shape in an inclined seam with longwall top coal caving mining." International Journal of Coal Science & Technology 7, no. 1 (2019): 182–95. http://dx.doi.org/10.1007/s40789-019-00286-z.

Testo completo

Abstract (sommario):

AbstractUnderstanding the characteristics of drawing body shape is essential for optimization of drawing parameters in longwall top coal caving mining. In this study, both physical experiments and theoretical analysis are employed to investigate these characteristics and derive a theoretical equation for the drawing body shape along the working face in an inclined seam. By analyzing the initial positions of drawn marked particles, the characteristics of the drawing body shape for different seam dip angles are obtained. It is shown that the drawing body of the top coal exhibits a shape-differen

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Rahimdel, Mohammad Javad. "SELECTION OF THE MOST PROPER UNDERGROUND MINING METHOD FOR KODAKAN GOLD MINE IN IRAN." Rudarsko-geološko-naftni zbornik 38, no. 4 (2023): 135–45. http://dx.doi.org/10.17794/rgn.2023.4.11.

Testo completo

Abstract (sommario):

The selection of mining methods is a challenging and complicated concept in mining engineering. It depends on various and different factors such as geotechnical, geological and economic properties and characteristics. Kodakan Gold Mine in Iran is currently mined using the open pit method. However, due to the special conditions of this mine and the increase in waste removal costs, it is inevitable to decide to select an underground mining method in the future. The purpose of this research is to select the most proper underground mining method for this mine. The shape, dip, and depth of the depo

Gli stili APA, Harvard, Vancouver, ISO e altri

18

KURBATOVA, V. V., N. E. LOMAKINA, I. YU GARIFULINA, and E. A. GLOTOVA. "ANALYSIS OF PARAMETERS OF UNDERGROUND MINING SYSTEMS OF THE KUPOL DEPOSIT AND THE ORDER OF MINING OF THE NE 3 35-3 BLOCK." Mine Surveying and Subsurface Use, no. 3 (2024): 12–17. http://dx.doi.org/10.56195/20793332_2023_3_12_17.

Testo completo

Abstract (sommario):

The article presents the results of studies of mining-geological and mining-geometric parameters of the underground mining of the indigenous gold-silver deposit «Dome», located on the border of the Anadyr and Bilibinsky districts of the Chukotka Autonomous District, It is established that the preparation of the block for cleaning works is carried out by mining-preparatory and rifled mining workings, passed at the horizons of 35 m and 50 m, with the accepted cross-section rectangular-vaulted shape. It is determined that an objective assessment of the mining-geological and mining-geometric param

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Larsen, Håkon. "Deep-Sea Mining: the Shape-Shifting Imaginaries at the New Extractivist Frontier." Public Anthropologist 6, no. 2 (2024): 315–41. https://doi.org/10.1163/25891715-bja10061.

Testo completo

Abstract (sommario):

Abstract Narratives of extraction are, in essence, speculations about imagined futures. This article addresses the emerging global phenomenon of deep-sea mining by examining how industry actors engage in rituals of negation to construct, negotiate, and reproduce scenarios of autonomous mineral extraction to curtail concerns over environmental risk. Being hailed as a redeeming frontier of capitalist growth in a post-carbon world, the deep ocean is prefigured as a site for sustainable exploitation by ultimately being fabricated as a lifeless, and socio-ecological void. First, the article conside

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Tereshchuk, Roman, and Oleksii Hryhoriev. "Analytical Studies Concerning the Shape of Metallic Frame Flexible Support." Advanced Engineering Forum 25 (November 2017): 171–78. http://dx.doi.org/10.4028/www.scientific.net/aef.25.171.

Testo completo

Abstract (sommario):

Determination of rational values of curvature radii of roof beam and stands to solve the problem of selecting rational shape of metallic frame flexible support under various mining and geological conditions of coal mines. The necessity to solve the problem of the determination of rational shape of metallic flexible support has been substantiated. Methodology to solve the problem of improving metallic frame support with the help of analytic equations of structural mechanics is represented. Shapes of mine working cross-sections as well as metallic support depending upon coefficient of lateral sp

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Hickson, P. W., D. W. McMahon, and M. A. Schapper. "The Shape of Hard Rock Mining in the 21st Century." IFAC Proceedings Volumes 18, no. 6 (1985): 13–19. http://dx.doi.org/10.1016/s1474-6670(17)60481-6.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Fuchs, Erich, Thiemo Gruber, Helmuth Pree, and Bernhard Sick. "Temporal data mining using shape space representations of time series." Neurocomputing 74, no. 1-3 (2010): 379–93. http://dx.doi.org/10.1016/j.neucom.2010.03.022.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Liu, Feilong, and Miao Li. "Evaluation Method of Product Shape Features based on Multidimension Spatial Data Mining." Mathematical Problems in Engineering 2022 (September 19, 2022): 1–11. http://dx.doi.org/10.1155/2022/1111683.

Testo completo

Abstract (sommario):

Analysis of product shape design has attracted more and more attention of researchers because it can make products better meet perceptual needs. Based on the theory of spatial data mining, this study proposes an evaluation method of a product shape design scheme. The method proposed in this study not only obtains the shape design of the overall and local features of the product, which solves the problem of the insufficient utilization of spatial data by the analysis method. During the simulation process, the model obtains the product shape design and appeal from the online evaluation spatial d

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Wu, Xiangzhao, Song Sang, Youwei Du, Fugang Liu, and Jintao Zhang. "Vortex-Induced Vibration of Deep-Sea Mining Pipes: Analysis Using the Slicing Method." Applied Sciences 14, no. 24 (2024): 11938. https://doi.org/10.3390/app142411938.

Testo completo

Abstract (sommario):

Deep-sea mining pipes are different from traditional ocean risers articulated at both ends: they are free-suspended, weakly constrained at the bottom, and have an intermediate silo at the end, compared to which relatively little research has been carried out on vortex-induced vibration in mining pipes. In this study, a sophisticated quasi-3D numerical model with two degrees of freedom for the flow field domain and structural dynamics of a deep-sea mining pipe is developed through a novel slicing method. The investigation explores how the vortex-induced vibrations of the mining pipe behave in v

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Wu, Peng, Ning Jun Ruan, and Kai Xie. "Intelligent System of Brain Tumor Automation Diagnosis Based on Image Analysis and Mining." Applied Mechanics and Materials 325-326 (June 2013): 1619–22. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1619.

Testo completo

Abstract (sommario):

This paper covers brain tumor diagnosis system based on image analysis and mining and its application. The system use the algorithm of fuzzy region competition, extracts shape feature factors to classify tumor shape, maps shape classification extracted automatically and other medical image features to numbers and then feed to bayesian network to sort the brain tumor automatically.

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Kodama, Hiroyuki, Toshiki Hirogaki, Eiichi Aoyama, Keiji Ogawa, and Hiroaki Hukasawa. "Proposal of Ball End-Milling Condition Decision Methodology Using Data-Mining from Tool Catalog Data." Key Engineering Materials 523-524 (November 2012): 386–91. http://dx.doi.org/10.4028/www.scientific.net/kem.523-524.386.

Testo completo

Abstract (sommario):

Machining is often performed by a machining center using various cutting tools and conditions for different shapes and materials. Recent improvements in CAM system make it easier for even unskilled engineers to generate NC programs. In the NC program, the end-milling conditions are decided by engineers. However, engineers need to decide the order of the process, cutting tool selection, and the end-milling conditions on the basis of their expertise and background knowledge because the CAM system cannot automatically decide. Data-mining methods were used to support decisions about end-milling co

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Zhang, Long, Jianhua Hu, Xinzhong Wang, Xiuwei Chai, and Lei Zhao. "Collaborative Mining Sequence Optimization for Multiple Stopes under Intensive Mining." Advances in Civil Engineering 2021 (April 1, 2021): 1–8. http://dx.doi.org/10.1155/2021/6683157.

Testo completo

Abstract (sommario):

The optimization of a mining sequence not only reduces stress concentration in surrounding rock but also prevents underground debris flows, significantly improving safety. Firstly, the 870–898 m level of the eastern mining area in the Tiaoshuihe phosphate mine was divided into 25 ore blocks, and six different mining sequences were designed for this area. Then, it was calculated that five ore blocks must be processed simultaneously to reach the annual production output. The distances between the five simultaneously mined ore blocks will inevitably affect the efficiency of the equipment for any

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Kaźmierczak, Urszula, Monika Bartlewska-Urban, and Paweł Strzałkowski. "Slope Shape Optimization of Water Reservoirs Formed Due to the Reclamation of Post-Mining Excavations." Applied Sciences 12, no. 3 (2022): 1690. http://dx.doi.org/10.3390/app12031690.

Testo completo

Abstract (sommario):

Reclamation of post-mining areas is one of the most important duties of an entrepreneur involved in mining mineral resources with the use of surface techniques. There are various forms of reclamation activities that depend on the chosen reclamation direction and intended function of the reclaimed object as well as from the type of the mined mineral. When there is water present in the mining excavation, we are talking about the aquatic direction of reclamation. This particular type of post-mining area requires a particular shape—especially if its intended future function is recreational. This r

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Emad, M. Z., Y. Majeed, and G. Rehman. "Rock splitting techniques for reducing undesirable cracks and fissures in rock salt blocks." Journal of the Southern African Institute of Mining and Metallurgy 122, no. 3 (2022): 1–8. http://dx.doi.org/10.17159/2411-9717/1780/2022.

Testo completo

Abstract (sommario):

Massive deposits of rock salt are mined in the Salt Range area of Pakistan. The main export products of rock salt include salt lamps, blocks, and tiles, while local consumption includes the chemical industry and domestic use. The profitable production of salt for value addition depends on the quality, size, and shape of the block. Salt processing for value addition is easier when very few cracks are present in the blocks. The current salt mining practice involves drilling and blasting, which introduces undesired fractures in the material. This paper focuses on the extraction of rock salt block

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Nosach, Oleksandr, Andriі Petrenko, Oleksandr Isaienkov, and Oleksandr Kipko. "ASSESSMENT OF THE INFLUENCE OF MINING-GEOLOGY AND MINING-TECHNICAL FACTORS ON THE STABILITY OF MINING WORKS." JOURNAL of Donetsk mining institute 54, no. 1 (2024): 104–13. http://dx.doi.org/10.31474/1999-981x-2024-1-104-113.

Testo completo

Abstract (sommario):

Purpose. Analysis of the impact of mining-geological and mining-technical factors on the stability of excavation site products. Methods. Analysis of studies of the state of the geotechnical system “massif-mining-protection structure” analytically, in laboratory and production conditions. Results. The analysis of the factors affecting the stability of the excavation workings showed that the mining factors associated with the parameters of the workings (width of the workings, shape of the cross-section of the workings, the scheme of erection of support anchors, type of permanent support of the w

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Ignatov, P. A., S. A. Malyutin, A. A. Ivanov, A. S. Desyatkin, and M. M. Lanchak. "Ring-shape and linear gold mining districts of zimbabwe: estimation of residual gold resources." Proceedings of higher educational establishments. Geology and Exploration, no. 6 (December 30, 2023): 14–25. http://dx.doi.org/10.32454/0016-7762-2023-65-6-14-25.

Testo completo

Abstract (sommario):

Background. Despite the long history of exploitation and study of Zimbabwe’s geological potential, the ranks of gold ore formations at the level of regions and fields remain unclear. Assessment of the residual primary gold deposits in Zimbabwe appears an important research direction.Aim. Identification of ring-shaped and linear ore districts confined to greenstone belts corresponding in configuration within the gold province of the Zimbabwe craton.Materials and methods. The main method for analyzing gold ore deposits was ore formation analysis. To analyze the residual gold resources in the reg

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Zhang, Chuan, Vivek Yadav, and Liwen Cui. "Mining of Candidate Genes Associated with Leaf Shape Traits in Grapes." International Journal of Molecular Sciences 25, no. 22 (2024): 12101. http://dx.doi.org/10.3390/ijms252212101.

Testo completo

Abstract (sommario):

As the most important organ for photosynthesis, leaves provide the main energy source for plant growth. Leaf traits affect light energy utilization and, thus, plant development and biomass. Given the high morphological variability of leaves between and within grape genotypes, phenotypic analysis is challenging. This study first evaluated leaf shape trait parameters using a specific leaf profile and area analyzer, along with genome-wide association study (GWAS) analyses, to identify additional candidate genes related to grape leaf shape traits. In the two-year analysis, 89 single-nucleotide pol

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Guo, Lin, Wanli Zuo, Tao Peng, and Lin Yue. "Text Matching and Categorization: Mining Implicit Semantic Knowledge from Tree-Shape Structures." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/723469.

Testo completo

Abstract (sommario):

The diversities of large-scale semistructured data make the extraction of implicit semantic information have enormous difficulties. This paper proposes an automatic and unsupervised method of text categorization, in which tree-shape structures are used to represent semantic knowledge and to explore implicit information by mining hidden structures without cumbersome lexical analysis. Mining implicit frequent structures in trees can discover both direct and indirect semantic relations, which largely enhances the accuracy of matching and classifying texts. The experimental results show that the p

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Gao, Xu, Chenyi Liu, Hongkai Zhang, Kunlin Yang, Yingjie Hu, and Xiaofei Guo. "The Change in the Shape Characteristics of the Plastic Zone in the Surrounding Rock of an Auxiliary Retracement Channel and a Reasonable Channel Spacing Determination Method." Applied Sciences 13, no. 18 (2023): 10543. http://dx.doi.org/10.3390/app131810543.

Testo completo

Abstract (sommario):

In underground coal mines, the stability of the retracement channel in the surrounding rock is crucial for the safe and efficient retracement of the equipment and to guarantee the continuity of the retracement work. To reveal the deformation and damage mechanism of the surrounding rock of an auxiliary retracement channel (ARC) and the determination method for the reasonable spacing of two retracement channels during the end of the mining period, the deviatoric stress field in front of the working face and the change in the shape characteristics of the plastic zone in the ARC are investigated i

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Wang, Xiao Gang, Xin Zhan Li, and Yue Li. "Application of Cluster Algorithm in Clothes Shape Classifying." Applied Mechanics and Materials 55-57 (May 2011): 1058–62. http://dx.doi.org/10.4028/www.scientific.net/amm.55-57.1058.

Testo completo

Abstract (sommario):

Based on research about patterns of garment, patterns were made to achieve data and interval of the bust eases. On the basis of bust eases, a series of shape profiles in different eases of garment were designed and distinguishing experiment was done according to the theory of psychics, which profiles in different eases were distinguished. The shapes in different fit were classified into four clusters: tight fit, fit, little loose and loose. The results of experiment were analyzed by k-means cluster method and quantitative classification based on bust ease was achieved. It opens our mind to mak

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Kodama, Hiroyuki, Toshiki Hirogaki, Eiichi Aoyama, and Keiji Ogawa. "Aid of End-Milling Condition Decision Using Data Mining from Tool Catalog Data for Rough Processing." Advanced Materials Research 325 (August 2011): 345–50. http://dx.doi.org/10.4028/www.scientific.net/amr.325.345.

Testo completo

Abstract (sommario):

The uses of data mining methods to support workers decide on reasonable cutting conditions has been investigated in this work. The aim of our research is to find new knowledge by applying data mining techniques to a tool catalog. Hierarchical and non-hierarchical clustering of catalog data as well as multiple regression analysis was used. The K-means method was used and on the shape presented in the catalog data and grouped end mills from the viewpoint of the tool's shape, which here means the ratio of dimensions has been focused. The numbers of variables were decreased using hierarchical clus

Gli stili APA, Harvard, Vancouver, ISO e altri

37

SHRESTHA, NRIPENDRA L., YOUHEI KAWAGUCHI, and TAKENAO OHKAWA. "SUMOMO: A PROTEIN SURFACE MOTIF MINING MODULE." International Journal of Computational Intelligence and Applications 04, no. 04 (2004): 431–49. http://dx.doi.org/10.1142/s1469026804001392.

Testo completo

Abstract (sommario):

Protein surface motifs, which can be defined as commonly appearing patterns of shape and physical properties in protein molecular surfaces, can be considered "possible active sites". We have developed a system for mining surface motifs: SUMOMO which consists of two phases: surface motif extraction and surface motif filtering. In the extraction phase, a given set of protein molecular surface data is divided into small surfaces called unit surfaces. After extracting several common unit surfaces as candidate motifs, they are repetitively merged into surface motifs. However, a large amount of surf

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Sexton, Renard. "Unpacking the Local Resource Curse: How Externalities and Governance Shape Social Conflict." Journal of Conflict Resolution 64, no. 4 (2019): 640–73. http://dx.doi.org/10.1177/0022002719873044.

Testo completo

Abstract (sommario):

Natural resource extraction is economically important in many developing countries, but social conflict can threaten the viability of the sector. This article examines why polluting extractive industries sometimes generate social mobilization but often do not. First, I distinguish acute, highly visible environmental externalities from chronic, less observable pollution, showing that only the former generate social mobilization. Second, I explore how high-quality local governance can mitigate the local resource curse dynamic by both reducing pollution and improving compensation in mining-intens

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Mueller, Klaus, and Eric Papenhausen. "Patterns of Philanthropy: Using Pattern Mining for Predictive Analysis in Advancement and Fundraising." Journal of Advancement Analytics 2, no. 1 (2022): 101–15. http://dx.doi.org/10.1353/jaa.2022.a933996.

Testo completo

Abstract (sommario):

Abstract: To support their academic mission, universities and colleges have become increasingly dependent on raising capital via advancement channels. As these institutions compete for the attention and funds of donors, advanced data analysis is a key to success. We present a method and system that can identify specific groups of donors that share sets of demographic, academic, and other features. This information can then be used to shape specific fundraising efforts and evaluate their expected profitability. We demonstrate our system using an advancement dataset we obtained via collaboration

Gli stili APA, Harvard, Vancouver, ISO e altri

40

Jia, Lin Gang. "Simulation Experiment Study of Surrounding Rock Deformation and Surface Movement during Paste Filling Mining." Advanced Materials Research 1073-1076 (December 2014): 2135–44. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.2135.

Testo completo

Abstract (sommario):

Based on the prototype of No. 2307 filling working face in Yuyang mine, using the method of similar simulation combined with numerical simulation, the geological mechanics model is established to simulate and analyze the mechanics evolution law and the deformation and movement process of the surrounding rock and the surface during the filling mining. Research shows that backfilling can effectively control surrounding rock failure and the surface deformation, and the roof doesn’t collapse, but the bed separated fissures appear, and the maximum stagnation lags the working face by 58.5m; in the m

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Vijay Bhaskhar Reddy PP COMP.SCI.0560, Y., Dr L.S.S Reddy, and Dr S.S.N. Reddy. "An Efficient Density Based Clustering approach for High Dimensional Data." International Journal of Engineering & Technology 7, no. 2.32 (2018): 111. http://dx.doi.org/10.14419/ijet.v7i2.32.15381.

Testo completo

Abstract (sommario):

Data extraction, data processing, pattern mining and clustering are the important features in data mining. The extraction of data and formation of interesting patterns from huge datasets can be used in prediction and decision making for further analysis. This improves, the need for efficient and effective analysis methods to make use of this data. Clustering is one important technique in data mining. In clustering a set of items are divided into several clusters where inter-cluster similarity is minimized and intra-cluster similarity is maximized. Clustering techniques are easy to identify of

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Viktorov, Sergey D., Vladimir M. Zakalinsky, Andrey A. Eremenko, Ivan E. Shipovskii, and Rafael Ya Mingazov. "DEVELOPMENT OF THE MECHANISM OF ACTION OF DECONCENTRATED CHARGES OF VARIOUS SHAPES FOR VARIOUS MINING CONDITIONS." Interexpo GEO-Siberia 2, no. 3 (2021): 135–43. http://dx.doi.org/10.33764/2618-981x-2021-2-3-135-143.

Testo completo

Abstract (sommario):

The modern requirements of the market economy and the increasing complexity of the field development conditions require new scientific and technical approaches in deep quarries and mines in the complex development of subsurface resources. As you know, the dominant mining paradigm in drilling and blasting is associated with the technique of drilling wells and boreholes of a circular shape (cavity) with the placement of explosives in it. However, in mining science and practice, the variety of mining conditions has long required the creation of methods for the destruction of rocks with an asymmet

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Dougherty, Michael L. "Boom times for technocrats? How environmental consulting companies shape mining governance." Extractive Industries and Society 6, no. 2 (2019): 443–53. http://dx.doi.org/10.1016/j.exis.2019.01.007.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Cheng, Guo Qiang, and Yan Jin Song. "The Evolution Rules of Overlying Strata Porosity Influenced by Mining Activation." Advanced Materials Research 282-283 (July 2011): 21–25. http://dx.doi.org/10.4028/www.scientific.net/amr.282-283.21.

Testo completo

Abstract (sommario):

Rock is a type of natural material containing microcracks. The evolution of mining-induced fracture field is one of the main problems of gas comprehensive control and rock mass seepage. The distribution of fissures and porosity in overlying strata under the mining influence were studied in this paper. The stratum subsidence was represented quantitatively using elastic thin plate theory and key strata theory. Based on the stratum subsidence, a program calculating porosity in overlying strata was developed based on VB. The results demonstrate that the porosity increase with face advances. The po

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Edelbro, C., J. Sjöberg, L. Malmgren, and C. Dahnér-Lindqvist. "Prediction and follow-up of failure and fallouts in footwall drifts in the Kiirunavaara mine." Canadian Geotechnical Journal 49, no. 5 (2012): 546–59. http://dx.doi.org/10.1139/t2012-012.

Testo completo

Abstract (sommario):

A likely result of changes in rock stresses due to progressing mining is an increased number of compressive stress–induced failures. This paper presents the results from numerical analysis and observations of stress-induced fallouts in footwall drifts in the Kiirunavaara underground mine. A brittle-plastic “cohesion-softening friction-hardening” (CSFH) material model was used for simulating brittle fallouts. To account for mining-induced stress changes, the local model stress boundary conditions were extracted from a global model. The rock mass properties were based on field observations in th

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Wu, Jie. "Evaluation Model of Product Shape Design Scheme Based on Fuzzy Genetic Algorithm Mining Spatial Association Rules." Mathematical Problems in Engineering 2022 (March 18, 2022): 1–10. http://dx.doi.org/10.1155/2022/2888472.

Testo completo

Abstract (sommario):

Put forward a kind of association rules mining method based on fuzzy genetic algorithm, this approach by building a mining model, the association rules and fuzzy genetic algorithm fuses in together, and then given to the fitness function of the mining space, and uses threshold to limit the fuzzy genetic algorithm will cross distribution and compile the fitness function, the improved method excavation stability is strong, the mining accuracy is high. The clustering analysis method of multidimensional fuzzy genetic algorithm mapping association network is studied, and the multidimensional module

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Yan, Yueguan, Ming Li, Jibo Liu, Weitao Yan, Jinman Zhang, and Bang Zhou. "Ground Subsidence Evolution from 1000 m Deep Mining: A Case Study in Fengfeng Mining Area." Shock and Vibration 2021 (September 27, 2021): 1–9. http://dx.doi.org/10.1155/2021/9942968.

Testo completo

Abstract (sommario):

The mining of coal resources in eastern China has entered the stage of deep mining, and many mines have reached the depth of 1000 meters. Different from shallow and moderate depth mining, the temporal and spatial evolution regulation of surface movement and deformation under deep mining has its particularity. Combining with the geological and mining conditions of Fengfeng mining area, this paper systematically studies the characteristics of surface movement under the condition of shallow, moderate, and near kilometer mining depth. By means of field measurement, InSAR monitoring, we get the sub

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Cherkasov, P. V., Ya V. Popinako, and M. S. Nikitenko. "Analyzing the effect of illumination on machine vision detection of the laser grid shape." Mining Industry Journal (Gornay Promishlennost), no. 5S/2024 (December 6, 2024): 110–15. https://doi.org/10.30686/1609-9192-2024-5s-110-115.

Testo completo

Abstract (sommario):

The main purpose of the study was to analyze the quality of laser grid shape detection in various ranges of illumination intensity for industrial application in conditions of underground and open-pit mining and on production sites. In particular, the dependences were established of the illumination level effect on the quality of the laser grid shape detection with the machine vision. Images were used as the study objects, while the subject was the machine vision algorithms and the values of the qualitative shape detection parameters. As a result, the authors have identified the conditions for

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Zhang, Ying, Kai He, Jianming Yang, et al. "Mechanical, Seepage, and Energy Evolution Properties of Multi-Shaped Fractured Sandstone Under Hydro-Mechanical Coupling: An Experimental Study." Minerals 15, no. 3 (2025): 215. https://doi.org/10.3390/min15030215.

Testo completo

Abstract (sommario):

Rocks with multi-shaped fractures in engineering activities like mining, underground energy storage, and hydropower construction are often exposed to environments where stress and seepage fields interact, which heightens the uncertainty of instability and failure mechanisms. This has long been a long-standing challenge in the field of rock mechanics. Current research mainly focuses on the mechanical behavior, seepage, and energy evolution characteristics of single-fractured rocks under hydro-mechanical coupling. However, studies on the effects of multi-shaped fractures (such as T-shaped fractu

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Zhang, Bang’an, Yushun Yang, and Dongming Zhang. "Study on Temporal and Spatial Characteristics of Overlying Strata in the Deep Coal Mining Process." Advances in Civil Engineering 2021 (October 6, 2021): 1–14. http://dx.doi.org/10.1155/2021/4914531.

Testo completo

Abstract (sommario):

This study adopts the stress relief method to test the in situ stress in the field to obtain the in situ stress distribution characteristics of no. 2 + 3# coal seam. A three-dimensional model was established with the no. S3012 working face as the engineering background, and the measured in situ stress values were applied to the three-dimensional model, and the spatial-temporal evolution characteristics of coal and rock mass around the stope during coal seam mining were studied. The specific conclusions are as follows: the three-dimensional stress distribution map in front of, behind, and on bo

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!