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The Dilemma and Effective Path of the Mainstream ldcological Education in Colleges and Universities in the Big Data Era XIANG Liping Journal of Kunming Metallurgy College    2023, 39 (1): 1-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００１ Abstract （199）      PDF（pc） （1144KB）（133）       Knowledge map    Save Ideological wok is the work of setting up the heart for the country and the soul for the nation.Colleges and universities are the forefront position of developing mainstream ideological education.Underthe background of big data ena ，strengthening the mainstream ideological education of young students hasbecome an import ant task of ideological and political education in colleges and universities. At present,the mainstream ideology education in colleges and universities in our country is faced up with many chal-lenges and problems , such as the slow application of the platfom of coopenative education，the education-al mode being hit , the dispelling of the authbority of the mainstream ideology and the bluwring of the identi-fication degree of the mainstream ideology. 'Therefore ,the mainstream ideological education in collegesand universities should meet the new requirements of the big data era，build the cooperative educationplatfom，innovate the educ ational model，optimize the educational system and mecharnism ，and enrichthe content constnuction to improve the dissemination ,attraction，leading and identification of the main-stream ideological education in colleges and umiversities，and to explore the effective path of the main-stream ideological education in colleges and universities，strengthen the leading ability of the mainstream ideology to all kinds of ideas and social trends of thought，consolidate and strengthen the leading positionof the mainstream ideology in colleges and umiversities，and ensure that colleges and universities alwaysbecome a strong position of setting up morality and cultivating people. Related Articles | Metrics

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Investigation and Research on Graduation Practice of Vocational College Students: Based on the Survey of Six Vocational Colleges in a Western Province WANG Haiyan Journal of Kunming Metallurgy College    2023, 39 (1): 5-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００２ Abstract （81）      PDF（pc） （1091KB）（74）       Knowledge map    Save To further grasp the current situation of vocational college students’ graduation practice,through the self-designed questionnaire on graduation internship of vocational colleges ( jumnior colleges) ,this paper conducts a questiomnaire survey on the graduates of 6 vocational colleges in a westem povince.The results show that the ovemll satisfaction of graduation pwactice is not high and at different levels ofgraduation pactice , students' scores are significantly different ; “Internship instructors” have a big impacton " students' experience and gains ". It is suggested that the graduates’risk awareness of the graduationpractice should be improved and the practice procedures should be standardized，improve the organizationand management ability of colleges and universities and internship units，and earnestly implement themain responsibility, further reduce the differences between different stuent groups in graduation practiceand attach importance to the role of practice instructors. Related Articles | Metrics

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A Study on the Ecological Heritage of Local Nationalities in theSpirit of Xichou:'Taking the Zhuang Ethnic Group as an Example QI Yongchao Journal of Kunming Metallurgy College    2023, 39 (1): 103-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１７ Abstract （24）      PDF（pc） （1071KB）（66）       Knowledge map    Save Xichou spirit is the lofty spiritual quality with " working hanl”as the core formed by the peo-ple of Xichou in the practice of closing mountains for afforestation and transfoming natural ecology in re-cent 30 years. It is the product of the concrete activities of the traditional ecological ideas of various eth-nic groups in Xichou. To vigorously inherit and carry forward the Xichou spirit ,we should not only publi-cize its "red”color , but also excavate its "green”color. 'Therefore , systematically excavating and analy-zing the ecological and environmental protection concept of Xichou local nationalities is not only the basicwork of inheriting the Xichou spirit , but also a necessary link to carry forward its value of the times.'Tak-ing the Zhuang ethnic group as the research object ，starting from the national historical and cultural per-spective of the formation of the Xichou spirit ，this paper analyzes the traditional ecological and environ-mental protection concept of the Zhuang ethnic group , so as to strengthen the understanding of the conno-tation of the Xichou spirit anwl better promote the construction of regional ecological civilization. Related Articles | Metrics

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The Mechanism Innovation Practice of "Strong in Politics" of ldeological and Political Teachers in Colleges and Universities in the New Era WEI Jiongwen, Ll Huanling, HU Yaonan Journal of Kunming Metallurgy College    2023, 39 (1): 12-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００３ Abstract （63）      PDF（pc） （1061KB）（63）       Knowledge map    Save To be strong in politics”means to have firm political belief，solid political theory , strict po-litical discipline and strong political responsibility. I is the first requirement and core quality of ideolog-ical and political teachers in colleges anml umiversities in the new ema. It is also an important premise tofinmly cast ideological security lines , play the key role of ideological and political teachers , and do a goodjob of “four guides ”for college students. In order to promote the teachers of ideological and politicalcourses in colleges and universities to fully implement the requirements of “to be stiong in politics”andmake up for the deficiencies in ideals and beliefs , theoretical skills ，political discipline and responsibili-ty ，put forward the“five-in-one”pwactice mechanism irnmnovation countermeasures，such as access andexit mecharnism ，leaming and training mechanism，dynamic evaluation mechanism of political quality,assessment and evaluation mechanism，and organization and management mechanism. Related Articles | Metrics

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Investigation and Countermeasures of Students’ Learning Situation in the Enrollment Expansion of Higher Vocational Colleges: Taking Kunming Metallurgy College as an Example TU Wei, WU Guangli, ZHAO Kuncan, JIANG Li, CHEN Chunhua Journal of Kunming Metallurgy College    2023, 39 (1): 24-.   Abstract （90）      PDF（pc） （1348KB）（63）       Knowledge map    Save For higher vocational colleges，the expansion of enrolment is not only opportunities lut alsochallenges. Due to the unbalanced foundation of educational background，diversified learning demandsand inconsistency of learning time，the nontraditional students of the extension enrollment，which ac-counts for a large proportion , will have a great impact on the existing education and teaching model of thecollege. In onder to formulate a teaching strategy due to the chawacteristics of the expansion group，teachstudents in accordance with their aptitude. Taking the grade 2020 and grade 2021 expansion students ofKurming Metallurgy College as the survey targets ,questionnaires of 4 dimensions ane formulated，whichare the basic situation of students ,technical and skills foundation，learning alility , learning willingnessand expectation. 'The survey results show that the expansion group has the characteristics of clear learningmotivation，umbalanced foundation of technical skills，weak leaming ability ，and outstanding contradic-tions between working and learning.On the basis of the conlitions of the expansion group，we can ex-plore from the following aspects when fomulating their specific strategies ; first，we must deepen school-enterprise cooperation and explore the “ dual subject”cultivation model; second，we must deepen the re-form of credit system，and explore“ 1 + N merm ”talent cultivation model; third，we must promote thereform of the teacher，the teaching method and the textbook，and explore the“Learn through practice”teaching model ; fourth，we must speed up the construction of “smart campus”and explore the flexiblemanagement model. Related Articles | Metrics

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A Method for Automatic Generation of Contour Linesfrom Tilt Image Data of UAVLIU  Zhouwei, ZHENG Qinfang, ZHAO Huan, REN Yunru, GUl Haipeng Journal of Kunming Metallurgy College    2023, 39 (4): 51-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００７ Abstract （27）      PDF（pc） （1951KB）（57）       Knowledge map    Save In the process of topographic map production, it takes a lot of time to collect and compilecontour line, and it requires high experience of operators. To this end, the paper aims to generate tiltedimage point cloud by Context Capture software, extract ground points and critical points by the functionmodule of Terrasolid software to obtain the final ground points, and generate vector contour lines basedon the final critical ground points. After compilation and modification , the contour results can providereliable contour data for the production of topographic maps and improve the production efficiency of con-tour lines and topographic maps. Related Articles | Metrics

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Reform and Practice in the Teaching of Higher Mathematics Under the Background of New Engineering ZHOU Shaoyan, SHEN Fanqi, ZHANG Chaoyuan, ZHU Xingwen, WANG Pengde Journal of Kunming Metallurgy College    2023, 39 (4): 97-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１５ Abstract （20）      PDF（pc） （968KB）（57）       Knowledge map    Save Based on the curriculum concept of the new engineering, this paper studies the current situation and problems of the curriculum from the perspectives of curriculum, universities, teachers andstudents, puts forward some suggestions for curriculum reform and carries out practical exploration. Infinds out that the current curriculum concept is outdated, the curriculum content and system emphasizethe academic and knowledge system , and the isolation from engineering practice is strong , and the curriculum evaluation system is relatively simple. Curriculum reform should emphasize the innovation of curriculum idea, the reconstruction of knowledge system and the multi-dimensional curriculum evaluationmode. In universities , there is a shortage of Higher Mathematics teachers. Teachers' teaching tasks areheavy, and the teaching facilities are outdated. Curriculum reform should strengthen the introduction ofpublic course teachers and teacher training, pay attention to the upgrading of teaching facilities.Someteachers'teaching mode is relatively simple and teaching interaction is less. Curriculum reform shouldadvocate teachers to adopt modern teaching and interaction mode, and introduce engineering cases in thecontent. Students'interest in learning is low, and the phenomenon of playing with mobile phones inclass is relatively common. Teaching reform should guide students to participate in, make the curriculum more suitable for students'needs, so that teaching implementation can stimulate students' interest. Related Articles | Metrics

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A New Measure of the Higher Vocational Colleges to Build Morality and Cultivatc People: Establishing a Class Teacher for Ideological and Political Education YANG Guoying, YANG Yulan Journal of Kunming Metallurgy College    2023, 39 (1): 31-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００６ Abstract （67）      PDF（pc） （1071KB）（55）       Knowledge map    Save The teacher of ideological and political theory couse is the guide to the healthy growth of col-lege students，and the backbone force to complete the fundamental task of cultivating morality and culri-vating people.Freshmen are in a crucial period of the fomation of world outlook，outlook on life and val-ues. It is the national strategy to educate and cultivate them well , and it is the fundamental task of colle-ges and universities. In order to give full play to the role of ideological and political theory teachers in ed-ucation，Lijiang 'Teachers College takes advantage of the class teacher，the grass-roots organization ,which is the most important and has a core influence on the growth of students , to create the position of i-deological and political class teacher for the freshmen who lack the cultural foundation and learning hab-its ， and the ideological and political theory teachers stick to this position.Though this measume，theschool will strengthen and deepen the ideological and political education , open up the last kilometer of i-deological and political education , promote the ideological and political theory course teachers to shoulder  the real responsibility ，and pomote the connotative development of ideological and political education.According to the law of the growth of students , the limited ideological and political teacher resources areappointed in the education of the most need，arnd the most important stage and key classes ，make theteachers understand the responsibilities and assessment system , and use the system to improve the qualityof education.This is a measure to consolidate teachers’responsibilities with posts , to encourage teachersto combine teaching with pactice ，to take pwactical measumes in education and teaching ，and to steadilypromote and build morality and cultivate people. Related Articles | Metrics

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An Empirical Research on Integration of General Education intothe Talent Cultivation with Technical Skills in Higher Vocational Colleges LUO Jie, YANG Tianrong, ZHAO Yuan ' e Journal of Kunming Metallurgy College    2023, 39 (1): 17-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００４ Abstract （74）      PDF（pc） （1282KB）（55）       Knowledge map    Save As the educational function of general etucation goes well in colleges，extending to the broaderand deeper areas ,it is significant to enhance the overall qualities of students in higher vocational collegeand to promote their bodly and mind with the harmoniou and healthy personality development. Focusingon the new target of talent cultivation in higher vocational colleges for comprehensive and complex techni-cal skills required in the society of new era，this study tuies to explore the true situation of generaleducation 's function thwough empirical research and analysis.Based on the analysis of the problems foundin the survey，relevant approaches and strategies for the integration of geneal education into the talentcultiv ation ane discussed，hoping to strengthen the lominant role and function of genenal education in thefield of talent cultivation with technical skills in higher vocational education.Besides , it is expected toprovide some reference for higher vocational education and talent cultivation in the new period. Related Articles | Metrics

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Genesis and Metallogenic Model of Bauxite in Bacun ofYuzhou City in Henan Province CHEN Bafu, CHAI Wang , HUANG Xinglin, LEI Yangyin Journal of Kunming Metallurgy College    2022, 38 (6): 19-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２２．０６．００４ Abstract （4）      PDF（pc） （1349KB）（54）       Knowledge map    Save Based on the synthetic studies both in field and laboratory of bauxite in Bacun of Yuzhou Cityin Henan Province, this paper analyzes the metallogenetic environment and mineralization , metallogenicmechanism and metallogenic model of the ore from the perspectives of regional background, geologicafeatures, quality, composition, genesis and the ore-forming environments. The comparative analysisshows that this ore mainly occurs in the Upper Carboniferous Benxi Formation of the Ordos Basin and be-ongs to lacustrine colloidal deposit. The research results can give insights into the searching of bauxite inthe Upper Carboniferous Benxi Formation in the paraplatform of North China. Related Articles | Metrics

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Exploration and Practice of Empowering Higher Vocational Talentsin the Skills Master Studio：Taking the Intelligent Manufacturing Skills Master Studio of Shanxi Engineering Vocational College as an Example YAO Ruimin, CHEN Qingsheng, BAl Xueqing, YANG Yining Journal of Kunming Metallurgy College    2023, 39 (4): 92-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１４ Abstract （14）      PDF（pc） （1221KB）（53）       Knowledge map    Save Vocational colleges have generally established skill master studios, but there is currently nomature and reference model for how to use skill master studios to cultivate high-quality talents. Takingthe Intelligent Manufacturing Skills Master Studio of Shanxi Engineering Vocational College as an exam-ple, this paper analyzes the necessity of jointly building an intelligent manufacturing skills master studiobetween schools and enterprises from two aspects : adapting to the optimization and upgrading of industrialstructure and improving the guarantee of talent cultivation and teaching staff. This article introduces thepath of implementing vocational talent cultivation through the use of intelligent manufacturing skills mastelstudios, focusing on three aspects, which are innovating institutional mechanisms , building educationaolatforms, deepening the integration of industry and education , innovating talent cultivation modelsand implementing the “ Three Reforms in Teaching”to promote the improvement of professional groupsquality and efficiency. Finally, four strategies were proposed to improve the management mechanism.implement dynamic assessment, strengthen performance management, highlight positive incentives , integrate high-quality resources establish linkage mechanisms, strengthen effectiveness promotion , andcreate brand effects, which will contribute to the sustainable development of the intelligent manufacturing skills master studio. Related Articles | Metrics

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Application of Critical Thinking-Oriented Micro-Lectures in Blended Teaching of Higher Vocational English ZHANG Yu Journal of Kunming Metallurgy College    2023, 39 (1): 66-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１１ Abstract （37）      PDF（pc） （1376KB）（48）       Knowledge map    Save The application of cnitical thinking-oriented English micro-lectures can facilitate the develop-ment of students’ four core competencies ， i e. , competency in international communication in vocationalsettings，competency in multicultural exchange，competeney in advanced thinking and competency inhigher-level learning autonomy. 'The design，development and application of micro-lectures should be inaccordance with students’cognition development , second language acquisition parinciples and the featuresof modern learning methods. The teaching is designed based on the situated learning theory and students'practical needs; the micro-lectures are developed in concordance with schema theory and multimedialeaming theory with well-balanced cognitive load and“figure-groundl”relationship，whereafter some de-sign and development principles of micro-lectures are proposed. 'The student-centered interactive micro-lectues are applied in the thinking-oriented blended teaching ，which is to promote the effective applica-tion of micro-lectures in higher vocational English and give full play to the role of vocational English as apromoter of thinking abilities as well as a tool for communication. Related Articles | Metrics

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Hydrogeological Characteristics and Curtain Grouting Water Control Scheme of Maoping Lead-Zinc Mine in Yiliang HUANG Guanghong, SUN Bangtao, ZHOU Gaoming Journal of Kunming Metallurgy College    2023, 39 (4): 32-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００５ Abstract （12）      PDF（pc） （2432KB）（41）       Knowledge map    Save  Curtain grouting is the most common and effective method for mine water disaster control athome and abroad , and it is a more mature technology. With the progress of science and technology , thekey technologies such as grouting drilling technology , slunry ratio , curtain deformation monitoring, real.time automatic monitoring of mine hydrogeological information and so on have made great progress andoreakthroughs. lt is urgent to sum up the successful experience in this field and enrich the connotation ofthe traditional technology of curtain grouting for water control. Maoping lead-Zinc Mine is the first bigwater mine in Yunnan province to achieve remarkable results by using curtain grouting water controlscheme. Taking the curtain grouting water control project of Maoping lead-Zinc Mine in Yiliang as an ex.ample , on the basis of analysis and study of mine hydrogeological conditions , the construction conditionsand grouting technology of curtain grouting in Maoping lead-Zinc Mine are introduced, and the qualita.tive and quantitative evaluation methods of curtain quality and water plugging effect are summarized. Thenew technology and method used in grouting curtain water control project are refined. Related Articles | Metrics

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The Practice and Exploration of ldeological and Political Education in Metallurgical Specialty : Taking Iron and Steel Production Technology as an Example MA Lei, DUAN Liping, ZHANG Songyuan Journal of Kunming Metallurgy College    2023, 39 (1): 57-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１０ Abstract （52）      PDF（pc） （1997KB）（38）       Knowledge map    Save For sufficiently exeting the positive effects of the ideological and political education for train-ing the high-quality technical talent in the higher vocational colleges，and exploring the solutions to thecommon challenges in the practice of ideological and political education for science and technology cour-ses，taking lron anl Steel Production Technology the core course of the metalluwgical specialty as an ex-ample ，a practical framework of ideological and political education based on six general requirements,seven integration strategies,and eight teaching segments was developed.'The effectiveness of ideologicaland political education was demonstrated from the aspects of the learning efficiency，academic perfom-ance ,anml ideological and political consciousness of students , and the morl quality ，teaching ability andteaching teams of teachers and so forth.Meanwhile,the divection for further mesearch was discussed. It isexpected to provide a reference for the construction of ideological and political educ ation and the cultiva-tion of high-quality talent in the relevant colleges and universities. Related Articles | Metrics

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Grimas’s Narrative Perspective on The Clever Girl Tunes Romance WEI Ligen Journal of Kunming Metallurgy College    2023, 39 (1): 87-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１４ Abstract （37）      PDF（pc） （1092KB）（38）       Knowledge map    Save The Clever Girl Tunes Romance is one of Guan Hanqing's representative works. It tells the storyof maidservant Yanyan，who was lumed by the youmg Qianhu and regretted，but after fighting，she finallygot rid of the slave identity , and became the young Qianhu's little lady.Using greimas’structuralist nar-rate theory， the complex ideological connotation of the text can be clarified. When interpreting The CleverGirl Tunes Romance，the suface structure of the text can be seen as the continuous development ofYanyan's resistance consciousness and her urmemitting pursuit of personal freedom.The deep stnucture isthe conftont ation between “fighting for human rights”and"feudal oppression", so as to deeply under-stand the author Guan Hanqings creative intention of praising the insignificant and affiming humanrights. Related Articles | Metrics

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The Relationship Between Metacognition and Community of Inquiry Model: Based on College English Blended Teaching Practice HE Yayun, HUANG Yanyan Journal of Kunming Metallurgy College    2023, 39 (1): 78-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１３ Abstract （34）      PDF（pc） （1168KB）（37）       Knowledge map    Save As the ability to monitor and control one's cognitive processing ，metacognition is fundamentalto language learning. To explore the structure of metacognition anadl its relationships with online presencein college English learning community of inquiry，312 freshmen were measured with scales.'The resultsshowed that : 1) Metacognition was composed of self-rnegulation aad co-regulation;2) 'Teaching presencecan predict cognitive presence ; 3 ) Self-regulation，co-regulation and social presence served to mediatethe effects of teaching presence and cognitive presence.The research suggested that ，in order to buildand develop the blended college English leaming community of inquiry，attention should be given to thekey role of teaching presence，leamers’metacognition should be lrought into full play and socialpresence 's positive effects on interactive language learning envitonment should be enhanced. Related Articles | Metrics

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An Experimental Study on Acid Leaching of a Copper Oxide Ore in Yunnan YANG Zhihong, Ll Yongjia, ZHANG Jinliang, Ll Yingjuan Journal of Kunming Metallurgy College    2023, 39 (6): 1-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０６．００１ Abstract （17）      PDF（pc） （1424KB）（36）       Knowledge map    Save Aiming at a low-grade oxidized copper ore resource in Yunnan province , this paper adopts thetreatment process of sulfuric acid leaching with low investment , fast effectiveness and low pollution, andfocuses on the influence of leaching agent coneentration, mineral particle size, liquid-solid ratio , leac.hing time , leaching temperature and stirring intensity on copper leaching rate. Through the experimentalresearch , it was found that the low-grade oxidized copper ore is suitable for sulfuric acid leaching treat.ment. The optimum parameters are obtained, namely, concentration of leaching agent is 220 g/kg, themineral size is 40 mesh, the liquid-solid ratio is 3: 1 , leaching for 4 h, the leaching temperature is 60℃Cand the stirring intensity is 500 r/min. Under the conditions of the best acid leaching parameters, theleaching rate of the oxidized ore reaches 84% , the concentration of copper ion in the leaching solutionreaches 6. 9 g/L, and the grade of copper in the leaching residue is reduced to about 0. 26% . The exper-imental results make the low-grade copper resources that have not been effectively developed and utilizedin the past can be gradually developed, effectively expand the scope of copper resources, and have cer-tain economic and social benefits , providing a reference for similar mineral treatment and utilization oflow-grade copper resources. Related Articles | Metrics

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The Promotion Mechanism，Typical Models and Innovation Scales of the Combination of Science and Technology and Finance SHI Guanqing, PENG Cong, OUYANG Tianzhi Journal of Kunming Metallurgy College    2023, 39 (1): 107-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１８ Abstract （22）      PDF（pc） （1133KB）（35）       Knowledge map    Save The effective connection between teclmnology as the smart side and finance as the capital side isthe driving force for the enlogenous growth of the national economy. 'Tlhe article first analyzes the achieve-ments andl problems of the coumtry's teclmology and financial integration development , then summarizes theconnection mechanism of technology and finance from five aspects.Based on the three successful models ofGerman bank-led，Japanese government-led and Israeli government and fund co-led，it puts forward thethree aspects of the country's science and technology finance innov ation.The tlwee standards，namely thebalance of govemment functions and market mechanisms，encounagement of innovation and prevention ofrisks，anml top-level design and implementation routes，provide directions for deepening the reform ofscience and technology fimance. Related Articles | Metrics

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Analysis of the Evolution of Urban Landscape Expansion Pattern Based on Multi-Order Adjacency Index: A Case Study of Chenggong District, Kunming City YI Junhua , WANG Xiao, XU Quanli Journal of Kunming Metallurgy College    2023, 39 (4): 42-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００６ Abstract （17）      PDF（pc） （2610KB）（30）       Knowledge map    Save Urban landscape is not only a typical characteristic of urban expansion , but also an importantindicator to evaluate the level of urbanization. Measuring landscape characteristic and analyzing its spa-tio-temporal evolution pattem is helpful to reveal the trend of urban expansion and provide a support forrational urban planning. Taking Chenggong district of Kunming of Yunnan province of China as the casestudy, this issue measured the characteristics of urban landscape expansion with Multi-order AdjacencIndex ( MAl) and analyzed its geographic cluster pattern using spatial autocorrelation analysis methodfrom 2005 to 2020 (every 5 years is a calculation period, and there are three periods in total). Firstly.we measured the characteristic of urban landscape according to the MAl values, and then , based on theMAl value , the spatial autocorrelation analysis method was adopted to detect the geographic cluster patterns and the urbanization trend. The results showed that: l) Sprawl type and edge type were the maintypes of urban landscape expansion in the study area, while the other types were more average and haveobvious gap compared with the above two types; 2) In the early stage of urban development ( the first 10years) , the sprawl type dominated , and then the trend was obviously declining in the later stage; 3 )The high-high cluster areas of MAl showed the trend of urban expansion from the center to the surround-ing areas, and the pace of urbanization was developing towards the direction of “ compact". These re-sults indicated that the combination of MAl and spatial autocorrelation is an effective way to measure anddetect the characteristics of urban landscape expansion and its spatio-temporal evolution process. Related Articles | Metrics

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Application and Research of Case Teaching Method in Engineering Drawing TU Xin Journal of Kunming Metallurgy College    2023, 39 (1): 72-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．０１２ Abstract （43）      PDF（pc） （1279KB）（26）       Knowledge map    Save Engineering drawing course is a compulsory basic course for all engineering majors in highervocational colleges. It pays attention to the training of practical ability, meticulous pwofessional spirit andappropriate inmovative thinking. ln order to improve the teaching quality and guarantee the teachingeffect ， the teaching method reform of this course has always been caried out aound the new trend of thehigher vocational talents training goal. From the perspective of the teaching reform of engineering draw-ing , this paper introduces a new idea of case teaching method ，and takes the application of the basicknowledge points of the national standards in the teaching process;drawing plane graphic cases. 'Thispaper discusses the situation of this method in teaching practice. 'The application of engineering drawingcase teaching method reshaped the form of teaching anm broke the boundary of the class and it is a benefi-cial attempt to implement the reform of “three education”reforms. lt not only trains the students' interestin engineering drawing，guides them to think independently，solves the pwactical problems with creativemethods，but also improves the students’cooperative leaming ability.'The teaching reform of engineeringdrawing needs to solve the problem of“le arning"and“teaching". But in the whole course , the differentcontent needs the different method to cany on.'Therefore , the teaching reform exploration should be con-timuously deepened and updated. Related Articles | Metrics

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An Ideological and Political Teaching Design and Practice of NewAdvanced College English Book 4 in Higher Vocational College Based on the Theory of Production-Oriented Approach WANG Jianying Journal of Kunming Metallurgy College    2023, 39 (1): 37-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００７ Abstract （40）      PDF（pc） （2090KB）（26）       Knowledge map    Save This paper reports a two-unit classroom experiment including Unit 1 and Unit 2 in New Ad-xanced College English Book 4 (Edition 3 ) on Production-oriented Approach (POA) as the teaching the-ory. The paper shows the teaching design based on the theory and teaching process , highlights the ideo-logical and political educ ation，and reports thwough questionnaires ，interviews ,class online learning re-sources of students learning data analysis ，learning effect evaluation and the evaluation of teaching andthe teaching reflections based on the class observation and reflection log. With the guidance of POA,which follows the sequences of output input→-output pocedumes and three steps of before class，in classand after class，and three core processes of driving , facilitating and evaluation，the teaching process em-phasizes taking students as the main body ，and completes a series of input and output tasks under theguidance of teachers to realize the ideological and political teaching of New Advanced College EnglishBook 4 and achieve the teaching effect of organic integration of language and education.At the end of thepaper，the author provides reference for the pwactical application of Production-oriented Approach in theideological and political education of New Advanced College English Book 4 in higher vocational colleges. Related Articles | Metrics

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An Analysis of the Practical Strategy of Building the “Golden Course" of ldeological and Political Theory : Taking the Course of Basic Principles of Marxism as an Example ZHUANG Qianlin, ZHANG Zhibin Journal of Kunming Metallurgy College    2023, 39 (1): 45-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００８ Abstract （37）      PDF（pc） （1084KB）（25）       Knowledge map    Save ldeological and political courses are the main bodly of ideological and political education in u-niversities，and they are the key couses for implementing the fundamental task of building morality andcultivating people.Creating a “Golden Course”for ideological and political education is an inevitable re-quirement for comprehensively improving the quality of ideological and political educ ation teaching，pro-moting the construction of the teaching team for ideological and political education , and meeting the pac-tical needs of college students' growth and success.'The position of the couse Basic Principles of Marx-ism in the ideological and political educ ation system of umiversities cannot be replaced.Strengthening thetheoretical support and ideological guidance ole of the couse“Basic Principles of Marxism" , creating a“Golden Course”of “ Basic Principles of Marxism”can better help young students establish a firm idealand belief in communism ，and strive to become a firm believer in Marxism and socialism with Chinesecharacteristics，conscious defenders and loyal practitioners.'Tlhis paper takes the course of Basic Pinci-ples of Marxism as an example，focuses on the fundamental task of“ building morality and cultivating people". We have put forwandl several thoughts and strategies for creating the“Golden Course on the Bas-ic Principles of Marxism ” , adhering to the principle of “ content being the king”, making good use of the"great history”of the centennial Paty , the" great achievements”of China，and the“great vision ”ofglobal trends to teach the Basic Principles of Marxism couse well , and adhering to “formal innovation”,changing teaching models ,ermiching teaching resources，and making the course“ lively”and “ dlynam-ic ”, and stnives to provide reference for the construction of more “Golden Courses” of ideological and political education. Related Articles | Metrics

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Effect of Ammonium Chloride and Ammonium Nitrate on Crystallization of Ammonium Sulfate GU Shan, LI Jun, ZHAN Wei , MAO Xiang, JIANG Qizheng, ZHU Yunbing, GAO Yingfeng, HUANG Bangfu, ZI Gaoyong, XIAO Lan Journal of Kunming Metallurgy College    2023, 39 (4): 63-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００９ Abstract （22）      PDF（pc） （1201KB）（25）       Knowledge map    Save In order to investigate the effects of adding different proportions of ammonium chloride and am-monium nitrate on the solubility, metastable zone and crystallization of ammonium sulfate, the solubilityand metastable zone of the mixed solution were measured by laser method. The solution was cooled andcrystallized. The thermodynamics of mixed solution is calculated by using Van't Hoff equation. Themixed solution was cooled and crystallized. The average particle size and distribution of the crystals wereinvestigated by sieving method, and the crystal morphology was analyzed by macro. The results showthat NH4+can reverse the hydrolysis of ammonium sulfate, resulting in a significant decrease in solubilityof the mixed solution compared with that in pure water; Cl and NO, also affect the solubility of ammo-nium sulfate, and Cl- has a more obvious effect. When the ratio of ammonium chloride to ammoniumnitrate was 1:2, the width of ammonium sulfate metastable zone became wider, indicating that ammoni-um nitrate could inhibit ammonium sulfate nucleation to a certain extent. When the ratio of ammonium chloride to ammonium nitrate was 2:1, the metastable zone width of ammonium sulfate was narrower thanthat of pure ammonium sulfate. No matter how the proportion of ammonium chloride and ammonium ni-trate was adjusted, the crystallization amount of ammonium sulfate increased. When the ratio of ammonium chloride to ammonium nitrate was 1:1, the crystallization capacity and average particle size were thelargest. The related research results can provide a new idea for optimizing the crystallization of ammonium sulphate mother liquor obtained by ozone denitrification and ammonia desulfurization. Related Articles | Metrics

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On the Path of Vocational Education Boosting Rural Revitalization in Ethnic Areas:A Case Study of Y County in Yunnan Province ZHU Yuqin Journal of Kunming Metallurgy College    2023, 39 (3): 1-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０３．００１ Abstract （46）      PDF（pc） （1008KB）（24）       Knowledge map    Save Vocational education is an indispensable part of the national education system.  Rural revitalization is a major strategy in our country.  Vocational education should be worked to its advantages to boost rural revitalization in ethnic areas by cultivating talent，providing talent support，political guarantees and cultural inheritance to better motivate the rural vitality，propel the economic and social development of high-quality，and help farmers achieve sustainable development and common prosperity. Related Articles | Metrics

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Determination and Analysis of Total Phenolic Content in Inula Cappafrom Different Producing Areas in Yunnan YAO Bo, HUANG Li, YAN Cuirong Journal of Kunming Metallurgy College    2023, 39 (4): 57-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００８ Abstract （9）      PDF（pc） （974KB）（24）       Knowledge map    Save A method for determination of the total phenolic content of Inula cappa was established.andthe amount of total phenol in nula cappa from different production areas in Yunnan was compared. Theextraction technology was optimized through single factor test and orthogonal testand the content of totalphenolin Inula cappa was determined by visible spectrophotometry with thymol as control substance. Theresults showed that the maximum absorbance of thymol solution was obtained at the wavelength of278 nm , and there was a good linear relationship between the concentration and absorbance in the rangeof 9. 8 ~ 68. 6 mg/L (r' =0. 999 2). The precision RSD of the method was 1. 45% , and the average re-covery rate was 98. 62% . The analvsis method was stable and reliable. The content of total phenol in 9batches from different producing areas was different, ranging from 7. 61 ~2. 89 mg/g. The experimentalresults can provide some reference for improving the quality standard and further developing and utilizingthe products of Inula cappa. Related Articles | Metrics

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Research on Intelligent Safety Helmet System Based on Non-coal Mine of Nonferrous Metals Journal of Kunming Metallurgy College    2023, 39 (4): 70-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１０ Abstract （9）      PDF（pc） （1227KB）（21）       Knowledge map    Save Integrating the internet of things theory, wireless broadband, RFID and other key technolo-gies, the intelligent safety helmet system is designed. Based on the integration and functional decomposition around the safety helmet carrier, on-site implementation of web and mobile applications , it not only improves the safety needs of downhole operators for intelligent safety helmets , but also solves the regu.latory needs of management staff. Related Articles | Metrics

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Application of Information Traceability System in Discipline Inspection and Supervision in Colleges and Universities YANG Xu, BAI Hanting, ZHANG Yongfan, PAN Hongbin, WANG Haifan Journal of Kunming Metallurgy College    2023, 39 (4): 76-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１ Abstract （11）      PDF（pc） （1397KB）（21）       Knowledge map    Save At present, disciplinary inspection and supervision organs at all levels, especially the disci-plinary commissions of colleges and universities, usually use paper accounts or electronic forms to man-age problem clues in the process of handling them. All types of document filling are manually filled out.which makes the document archives unable to be related to the problem clues in an active manner, resul-ting in low management quality and efficiency , which is not conducive to the dynamic tracking and man-agement of the entire process and measures of problem clue handling. This study proposes to utilize thepowerful functions of the WPF framework and adopt the MVVM pattern to design and develop an information dynamic management and traceability system , which can dynamically manage documents and problem clues, monitor and judge the process of problem clue disposal, and further improve the eficiency ofdisciplinaryinspection and supervision organs’ problem clue disposal management. Related Articles | Metrics

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Susceptibility Assessment of Landslide and Collapse Geological Hazardsin Dantu District of Zhenjiang Based on Information Content Model and Analytic Hierarchy Process TAN Yan, CUI Yu, JIN Huali , FANG Longjian, GE Peng, FU Leyi Journal of Kunming Metallurgy College    2023, 39 (4): 7-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００２ Abstract （8）      PDF（pc） （1782KB）（20）       Knowledge map    Save In this paper, the information content model and analytic hierarchy process are used to ana-lyze the disaster-prone geological conditions in Dantu District of Zhenjiang. Six evaluation factors, inclu.ding topographic relief, slope , engineering geological rock formation , geological structure, elevationand disaster point density, are selected to construct the evaluation system. By calculating the weightedinformation value of landslide and collapse geological disasters in Dantu District of Zhenjiang , the region-al geological disasters are divided into three levels of high , medium and low susceptibility. The calculat-ed results are in agreement with the actual survey results. This method provides scientific and objectivebasic data for geological hazard risk assessment in this region. Related Articles | Metrics

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Design of Multilevel Logistics Distribution Network with Splitting Order and Consolidating Deliveries DUAN Limei, ZHANG Jing, ZHANG Jun, ZHAN Zhihua, WANG Yidan Journal of Kunming Metallurgy College    2023, 39 (4): 86-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１３ Abstract （12）      PDF（pc） （980KB）（20）       Knowledge map    Save In order to cope with the characteristics of multipleorders, small batches and multiple ware-house shipments, a new logistics strategy is discussed to design the logistics distribution network. Basedon the design problems in traditional multi-level logistics distribution network , this paper studies themulti-level logistics distribution network design with splitting order and consolidating deliveries, establishes a mixed integer programming model, and designs experiments to verify the proposed modelThrough the experiments, it is found that the proposed model can solve the studied problem effectively.that the logistics strategy of splitting order and consolidating deliveries is effective. Related Articles | Metrics

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Application of Infrared Water Detection Technology in Geological Prediction of Karst Roadways REN Zhouhong, XIA Ronghui, LI Jifu Journal of Kunming Metallurgy College    2023, 39 (4): 1-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００１ Abstract （15）      PDF（pc） （1402KB）（19）       Knowledge map    Save Taking a middle section tunnel project of a super-deep metal mine in Yunnan province as anexample, this paper expounds in detail the basic principles , advantages and disadvantages, and opera.tion methods of infrared detection. This paper discusses the practical application of the HS-S310 infraredwater detector in geological prediction of exploration engineering in super-deep metal mines and analyzesthe experimental results and treatment methods of infrared water detection technology under the influenceof several interference factors. The experiment proves that the method is easy to operate and has highprediction accuracy. The water-rich state in front of the tunnel can be displayed by data inversion andthree-dimensional imaging. But this method is easy to be disturbed by construction site conditions. Byusing this infrared water detector to canry out advanced geological prediction, and make advanced predic.tions of the geological conditions ahead of the tunnel can lay a foundation for adopting the new water ex.ploration model of  drilling  geophysical exploration + short exploration”and using multiple forecastingmethods in combination, and plays a guiding role in improving the accuracy , economy and feasibility ofgeological prediction ahead of time. Related Articles | Metrics

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The research of slope stability in Chui mountain FU Leyi, TAN Yang Journal of Kunming Metallurgy College    2023, 39 (4): 16-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００３ Abstract （11）      PDF（pc） （5306KB）（19）       Knowledge map    Save Chuff Shan scenic area of the mouth slope for mining completion,and to cut slope,backfill restoration of the complex type of slope,the artificial fill and natural excavation of the slope deformation and failure mechanism of the study,for the restoration of similar projects in the future has important significance. In this paper,FLAC31' finite difference method and the combination of limit balance method analysis means of painting mountain scenic spot uncompromising slope stability to study,through the establishment of non-homogeneous three-dimensional model analysis of C2,C3,C4 uncompromising slope in natural and rainfall state of displacement deformation and stress distribution,and the stress concentration area using limit balance method to calculate its stability coefficient,In the combination of the two methods more accurate to find the position of the landslide slide zone,and the landslide under different conditions of the stable state,and comprehensive finite difference method and limit balance method calculation results of Chuff Shan C2,C3,C4  mouth slope proposed targeted prevention  measures and suggestion. Related Articles | Metrics

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Analysis of Social Needs and Training Paths for Technical and Skilled Talents in Metallurgy and Mining: A Case Study of Kunming Metallurgy College LIU Cong, JIANG iaochuan, YANG Kejing, LONG Xiaobo, LU Yifan Journal of Kunming Metallurgy College    2023, 39 (5): 37-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０５．００６ Abstract （16）      PDF（pc） （1299KB）（18）       Knowledge map    Save Employment is the greatest livelihood in China. In order to adapt to the needs of industrial up-grading, promote the precise positioning of talent cultivation goals in vocational colleges , and promote theintegration and compatibility of the industrial chain and talent chain , this aticle takes Kunming Metallur-gy College as an example. Based on the regional characteristics of students' employment, and with thesupport of big data technology, we conduct data mining on mainstream recruitment websites in society.Statistical analysis was conducted on the recruitment markets and information related to metallurgical andmining talents in 16 provinces in the southern region. Through the analysis of the current developmentstatus, technical skill demand structure , supply and demand relationship , and typical professions of themetallurgical and mining industries , it can be found that with the development of transformation and upgrading, not only in central and westem regions of Yunnan, but also in provinces and cities with higheroverall economic development levels in the eastern coastal areas , the demand for metallurgical and miningtalents is also large. The vast majority of metallurgical and mining positions require professional talentsmainly at undergraduate level. Professional abilities with high social demand are mainly concentrated inheat treatment, metal materials, processes, machinery, design , etc. , while general abilities are mainlconcentrated in communication and expression skills, team cooperation, sense of responsibility, etc.Compared with the talent cultivation and matching situation of Kunming Metallurgy College , high-frequen.cy abilities are reflected in the training specifications of metallurgical and mining majors at our schoolwhich are highly matched with social needs. Kunming Metallurgy College can achieve leapfrog develop.ment in talent quality by exploring new enrollment methods and establishing vocational undergraduate pro-grams. Related Articles | Metrics

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Research and Practice on Hierarchical and Modular Teaching Mode Reform of Artificial Technology Application Specialty Group CONG Peili Journal of Kunming Metallurgy College    2023, 39 (5): 45-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０５．００７ Abstract （12）      PDF（pc） （2552KB）（18）       Knowledge map    Save Vigorously develop artificial intelligence has become a national strategy , and in order to closely connect the development of artificial intelligence industry to the development of higher vocational levelof complex technical skills of talents, this paper takes the application of artificial intelligence technologyprofessional group as an example , around the digital Liaoning, intelligent manufacturing province , closeto the new information technology service industry demand for high-end technical skills talents , exploresthe reform of the teaching mode of the practice of professional groups at different levels and modulariza-tion. In the process of talent training, adhering to the talent training concept of “strong quality , thickfoundation , fine technology , integration of skills, the implementation of the fundamental task of cultiva-ting people, moral education quality, labor consciousness and professional literacy throughout the entireprocess of talent training. Innovative "basic convergence , professional orientation , hierarchical trainingmultiple developmenttalent training mode, on the basis of the college's characteristic 1 + N talent training , the paper breaks the professional barriers within the group , through modem apprenticeship,technician class , tutorial system , micro professional, arious compelitions , scientific research assistantproduction, learning, research , innovation , training, competitioncomprehensive , flexible and indi-vidual training program. According to students' own characteristics and development needs , personalizedtraining is carried out to mobilize the internal motivation of students to become talents , meet the needs otstudents'personalized development, effectively improve the quality of talent training, and cultivate high-quality composite technical talents. Related Articles | Metrics

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Application of Curtain Wall Installation and Construction Technology for Large Unit Plate of Commercial Buildings ZHAO Xia Journal of Kunming Metallurgy College    2023, 39 (4): 81-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１２ Abstract （8）      PDF（pc） （1015KB）（18）       Knowledge map    Save Unit curtain wall is a common form of curtain wall installation through the application of ad.vanced construction technology and energy-saving technology. Although the design and manufacturingcost of the unit curtain wall is relatively higher, the construction is simple and has a good environmentaprotection effect, so the application range is relatively wide. Combined with the specific project over-view, this paper explores the basic process and specific construction technology of curtain wall installa-tion of large unit plate in commercial buildings, in order to provide some technical references for the cur-tain wall installation of large unit plate in commercial buildings. Related Articles | Metrics

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Reflecting on the Teaching of Design Drawing from Graduation Design: Taking the Major of Environmental Art and Design ofKunming Metallurgy College as an Example ZHAO Yang, GUO Yajing, HUANG Wei, GUO Jingshu Journal of Kunming Metallurgy College    2023, 39 (4): 104-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．０１６ Abstract （17）      PDF（pc） （894KB）（17）       Knowledge map    Save Design Drawing is an important foundational course in the field of environmental art and de-sign, the teaching effect will alfect students' interest in the major and enthusiasm for learning professionalcourses, and the expression of final graduation design results. The graduation project practice processand achievement display are also a test of students’ comprehensive ability throughout their learning life.Taking the graduation project of Environmental Art and Design of Kunming Metallurgy College as the re-search object, this paper analyzes the problems existing in the teaching practice of graduation design,reflects on the impact of Design Drawing course on students'graduation design teaching achievements analyzes the problems and causes in the teaching process at different stages, and finally forms the think.ing of Design Drawing course teaching reform oriented by graduation design results. Related Articles | Metrics

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Site Selection and Equipment Selection of 5G Signal Base Station SHEN Xuzhu, LI Jiangyun, CHEN Liping, MA Lijuan Journal of Kunming Metallurgy College    2022, 38 (6): 89-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２２．０６．０１６ Abstract （6）      PDF（pc） （1986KB）（17）       Knowledge map    Save With the popularization of 5C technology, the continuous expansion of mobile communicationbandwidth has brought great convenience to people's life and work. However, the coverage of 5C signalbase stations is getting smaller and smaller, covering the same area, requiring more base stations, andthere are many types of base stations and antennas. Therefore , how to reasonably select the base stationand plan the base station equipment is an urgent problem to be studied. In practice , this problem is usu-ally manifested in selecting the appropriate base station equipment to establish a new base station on thebasis of the original base station network , increasing the service coverage area of the signal, or improvingthe signal quality. In this paper, we build a 0 -1 planning model for two typical scenarios of this prob.em, and solve the model according to the data provided by the scenario. From the results , our base station location scheme optimizes the number of new base stations and cost, and the total number of servicescovered meets the scenario requirements. Therefore, our model and method are feasible to solve suchproblems and have the value of promotion. Related Articles | Metrics

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Exploring the Teaching Methods of Ideological and Political Education in Physical Chemistry Course in Higher Vocational Colleges: A Case  Study of Kunming Metallurgy College LI Dongli, XIE Leilei, JI Haobo Journal of Kunming Metallurgy College    2023, 39 (3): 100-.   Abstract （33）      PDF（pc） （2246KB）（17）       Knowledge map    Save The course Physical Chemistry is the theoretical basis of chemical science and an important component of the discipline.  It contains basic concepts and abstract theories，which makes it complex for vocational college students to learn.  Against the backdrop of curriculum ideological and political educanon，it is of significance to arouse students' motivation to learn physical chemistry，and cultivate students' scientific spirit and responsibility.  The article integrates the ideological and political elements before，during and after the classroom teaching so that the whole-process ideological and political educanoncan effectively realize moral cultivation.  Through the combination of theory and practice，in-class and extra-class activities，online and offline teaching，students' learning effect is improved.  Through the task-driven teaching，the ideological and political education in Physical Chemistry course is evaluated，resulting in greater degree of students' overall satisfaction. Related Articles | Metrics

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Stability Analysis and Evaluation of a High and Steep Slope in A Polymetallic Open-Pit Mine WANG Xiaoyu, WU Shangrong Journal of Kunming Metallurgy College    2023, 39 (4): 25-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０４．００４ Abstract （10）      PDF（pc） （1248KB）（16）       Knowledge map    Save The mining depth of acertain polymetallic open-pit mine is large , and the slope is high andsteep. The stability of the mining slope is directly related to the normal operation of the mine, so the analysis and evaluation of its slope stability is crucial. Based on the geological conditions of mining engineering, mining status, and rock mass quality evaluation, a slope model is established for qualitativeand quantitative stability analysis using the technical means of on-site rock mass structure inyestigation+ qualitative analysis of stereographic projection + quantitative calculation of slope limit equilibrium meth-od”. The slope safety coefficients are calculated respectively under three working conditions: selfweight, self weight + blasting and self weight + earthquake. he results show that the current slope ofopen-pit mine is stable as a whole , and meets the requirements of the safety level, which illustrates thatthe slope structure parameters of the stope design have certain rationality. At the same time , it is suggested that smooth blasting and prespliting blasting should be adopted when the slope is close to the slopedesign boundary. lt is necessary to promptly clean up the peeling rocks caused by freeze-thaw action toensure mine production safety and reduce risks. Related Articles | Metrics

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Analysis of the Stylistic Characteristics of Different Schools ofthe Tang Dynasty Poetry Based on NLP and Statistical Methods LI Mengqiao, SHEN Fanqi, MA Ming, ZHANG Chaoyuan Journal of Kunming Metallurgy College    2023, 39 (6): 46-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０６．００８ Abstract （13）      PDF（pc） （1644KB）（16）       Knowledge map    Save Tang poetry is the cultural treasure of our country, with a large quantity, diverse styles andthemes. In order to discuss the characteristics of Tang poems of different schools, based on natural lan-guage word processing, this study analyzed the stylistic characteristics and differences of the poems of fivemajor schools , namely , landscape pastoral poetry , frontier poetry , romantic poetry, realistic poetry and epic poetry , using statistical methods such as k-means + + cluster analysis, repeated measurement variance a.nalysis and paired sample t test. The results show that Tang poetry itself has strong commonality, such as“* thousands of miles" , “ten thousands of miles" , “where" and other keywords 'TF-lDF values are relativelyhigh in different schools. In terms of poetry characteristics of different schools, romantie poetry and realisticpoetry , frontier poetry and epic poetry , romantic poetry and epic poetry have high similarities in the use ofkeywords , and the p-values of TF-DF values of different keywords after paired sample t-test are 0. 9730. 383 and 0. 052 , respectively. There are significant differences between the other genres. Related Articles | Metrics

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Preliminary Study on the Teaching Reform of Public Physical Education in Higher Vocational Colleges WANG Min, YU Yanmei, DING Qing Journal of Kunming Metallurgy College    2023, 39 (1): 51-.   DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２３．０１．００９ Abstract （36）      PDF（pc） （1134KB）（13）       Knowledge map    Save A series of discussions about physical education ly President Xi Jinping have put forward newrequirements and challenges to physical education in higher vocational colleges.'The successful holding of20th National Congress of the CPC has provided new opportunities and challenges for the construction ofhigher vocational colleges in the new era，especially the new requirements of accelerating the constructionof the leading sports nation，the reform and innovation of public physical education in higher vocationalcolleges has become a new proposition of the times.'The teaching neform and teaching quality of publicphysical education are directly related to the smooth promotion of connotation education in college. 'Thispaper analyzes the existing problems and difficulties encountered in the public physical education courseof higher vocational colleges，and puts forward some countermeasures and suggestions from the aspects ofteaching team constnuction , site improvement,rich curriculum content and updating of teaching methods，so as to promote the improvement of the teaching quality of public physical etducation course and thesmooth implementation of teaching reform. In this way , it will help higher vocational colleges promote theinnovation of “thwee education”reforms and smoothly implement the dream of " a leading sports nation". Related Articles | Metrics