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西昌学院学报（自然科学版）

西昌学院学报（自然科学版）

Journal of Xichang College(Natural Science Edition)
本刊坚持经马列主义、毛泽东思想、邓小平理论和“三个代表重要思想为指导，繁荣学术，力求创新，以反映西昌学院的最新科研成果为主，同时吸收全国各地的优秀稿件，用以推动西昌学院的科学研究，并积极参与国内外学术交流，促进科技发展。
  • 发文量：3330
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    国际刊号/ISSN：1673-1891
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西昌学院学报（自然科学版） >2023年第3期

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  • 摘要：Type Min (Max) linear programming problem is how to pursue the minimization (maximization) of problem under a condition with limited resources. Examples with type Max have been adopted to present the solutions of linear programming problems for scholars in majority of textbooks;but how about the solutions of type Min linear programming problems? Grounded on the type Max solutions, solutions of type Min problems will be figured out in the following essay, which aims at offering scholars a better distinction and clearer recognization of solutions for different linear programming problems.%min型（max型）线性规划问题就是如何在有限的资源条件下，追求最小化（最大化）的问题。大量教材中多以max型为例向学者展示了线性规划问题的求解。如何求解min型线性规划问题？文章在给出max型解法的基础上，给出了min型问题的解法，帮助学者更好的区分和认识不同类型线性规划问题的求解。
  • 摘要：A new decision method for non regular graph isomorphism problem is given in this article which also analysis its complexity. Finally, an example is used to prove this methed is simple and convenient than before.%对于非正则图的同构问题，给出了新的判定方法，并且对该方法的复杂度进行了简单的分析，最后用实例证明新方法比以往的方法简单方便。
  • 摘要：By using sequential function chart as a train of thought and binding it with experience-based design method, the design of a complex traffic light controlling system has been completed. Meanwhile, the cumbersome process of using experience-based design method has been avoided and the program design becomes much vivid and more understandable as well as easier to be extended.%将顺序功能图(SFC)做为一种思路，结合通用的经验设计法解决了一个复杂的交通灯控制系统的设计任务，避免了完全使用经验设计法的繁琐并使得程序设计变得更加形象、易于理解且便于修改与扩展。
  • 摘要：This paper is to study the relationship of exchange rate in 2005 after the reform of RMB exchange rate against the U.S. dollar and Sino US interest rate difference. Empirical results show that: the Sino US spreads IRFFR and the RMB exchange rate ER has positive Grange causality , The impact on the yuan against the dollar is greater from its preliminary data ER , a standard impact of ER on the IRFFR is very large . The funtion is large in explaining the fluctuation of ER on IRFFR . At the appropriate time further liberalization of capital market and the floating range of exchange rate are regulated. Using the market mechanism of itself inherent balance to achieve the balance on exchange rate ,interest rate and the capital market .It has become the inevitable choice.%研究的是2005年汇率改革后人民币对美元汇率与中美利率差的关系。实证分析结果表明：中美利差IRFFR与人民币对美元汇率ER之间存在正向的Grange因果关系，人民币对美元汇率ER受自身前期数据影响较大，中美利差IRFFR受ER的一个标准差的冲击影响较大。ER的波动对IRFFR的解释较高。在适当的时机进一步放开资本市场管制及汇率浮动区间，利用市场自身的平衡机制来实现汇率、利率、资本市场的内在平衡成为必然选择。
  • 摘要：漆画是一个古老而年轻的艺术，它的材料选择的多样性，新颖独特的表现手法，展示了一个崭新的艺术世界。在当代文化创业大发展的背景下，漆画的材质美感得到了深入的探索和挖掘，价值属性也得到延伸，并且赋予漆画材质多元艺术美和精神内韵。漆画物质材料的研究是将艺术的表现力和审美的能力，材料多样化的使用有机的结合、融汇。漆画材料语义质感研究，能对继承传统漆画材料和漆画新物质材料的研究探索起到一定作用。%Painting is an ancient and young art , its diversity of material selection , novel and unique expression show a new artistic world . In the context of contemporary culture entrepreneurship development, the material beauty of painting has been in-depth exploration and mining, the value of property has also been extended , and painting materials has given diverse artistic beauty and spirit of the rhyme . Painting materials research is combined with artistic expressive force and aesthetic ability ,variety of organic materials . Research on texture of lacquer painting material semantics can play a certain role in inheriting the traditional painting materials and exploration on new materials of painting.
  • 摘要：The Tang and Song Dynasties, the word and the instruments are closely related. Musical instruments are in a variable, the form of the word is changed, the word mood, rhythm also change, which is a key factor in the Tang and the Five Dynasties and two Song style’s difference .The words and music by clutch, cooperation between the music with the contemporary scholars also has a direct effect on rheological style of words. In a word, Tang and Song poetry under the influence of the music gradually transformed from the musical literature to pure literature .%唐宋时期，词与乐器有着密不可分的关系。乐器一变，词的形式既随之而变，词的情调、音律也随之而变，这正是唐五代两宋词风格迥异的关键。而在词与乐相离合的过程中，乐与同时代文人之间的配合也对词的风格流变有直接影响。总之，唐宋词在音乐的影响下逐渐从音乐性文学向纯文学转化。
  • 摘要：This paper has carried on the investigation and analysis to the present development of tennis in sport major and non-sport major of Huaibei Normal University by using the methods of literature, interview, questionnaire, mathematical statistics. Conclusion: present development of tennis has been carried out to the whole campus of Huaibei Normal University, but there are some problems to be solved and perfected. Through the investigation and analysis, the research has provided a theoretical basis and reference for the subsequent development and improvement of tennis teaching in Huaibei Normal University.%论文通过文献资料法、访谈法、问卷调查法、数理统计法对淮北师范大学网球运动在体育专业和非体育专业开展现状进行调查和分析。结果表明，淮北师范大学的网球开展基本覆盖到全校范围，但也存在一些有待解决和完善的问题。通过调查和分析，为淮北师范大学网球教学的后续发展和提高提供理论依据和参考。
  • 摘要：With the methods of literature, questionnaire survey method, mathematical statistics, the extracurricular physical exercise attitude, project selection, the number of activities and time were investigated with the middle school students in Xinluo district of Longyan to analyze and discuss the subjective and objective factors of influencing middle school students to participate in extracurricular physical exercise and find out the effective solutions.%运用了文献资料法、问卷调查法、数理统计法等研究方法对龙岩市新罗区中学生参与课外体育锻炼的态度、项目选择、活动次数和时间等方面进行调查，分析和探讨了影响中学生参加课外体育锻炼的主客观因素，找出有效的解决方法。
  • 摘要：Analog Electronic Technology is an important and basic professional course, which has strong theoretical property and practicality. By analyzing the shortcomings of traditional teaching methods and the advantages of EDA simulation in teaching, this article expounds an effective way to combine EDA simulation technology theory and teaching practice, shows the EDA simulation examples in the teaching of basic amplifier circuit analysis. The purpose of this teaching method is to improve teaching effect by stimulating students’learning interest and improving students' practice ability.%模拟电子技术课程是电类专业一门重要的专业基础课，具有较强的理论性和实践性。本文通过分析传统的教学方式的不足以及在教学中应用EDA仿真的优势，阐述了EDA仿真技术理论与实践有效结合的途径，展示了运用EDA仿真在基本放大器电路分析中的教学实例，激发学生学习兴趣、提高学生实践动手能力，达到提升教学效果的目的。
  • 摘要：This paper presents and proves two theorems, using the two theorems for the solutions of first order non homogeneous linear differential equation.%给出并证明了两个定理，利用这两个定理求解一阶非齐次线性微分方程。
  • 摘要：归结原则可将函数极限问题转化为数列极限问题。本文给出了较弱条件下的归结原则，讨论了归结原则在证明一类常数函数问题中的应用。%The function limit problem can be converted to the limits the number of columns. This paper gives generalization principle under weaker conditions and discusses application of the generalization principle in certify a class of constant function.
  • 摘要：The open access is necessary for the college network teaching resources by means of network and electronics. This article analyzes the subject, object and rights of the network teaching resources form the particularity in the form and copyright, as well as the contradiction in sharing and protection. Further more,the dynamic supervision concept is introduced to the college network teaching resource protection. This paper discusses the construction of the dynamic scheme for the college network teaching resources protection based on UCON model, and gives the formal description for the typical access control model.%高校教学资源的电子化和网络化，使得高校网络教学资源的开放存取成为现实的需要。从网络教学资源在形式、版权方面的特殊性以及在共享与保护方面的矛盾性出发，对高校网络教学资源的访问主体、客体和权利进行了分析，引入UCON（Usage Control）模型的动态监管思想，探讨构建基于UCON模型的高校网络教学资源保护的动态性方案，并给出了典型的访问控制模型的形式化描述。
  • 摘要：The adjustment of tax deferred income tax accounting, is the difficulty of teaching content, is troubled by the one of the main problems of student learning. This paper mainly uses the simplified design of the two re definition,by examples of visual demonstration of the relationship between the two measures, and strives to make the complex problem simplified, so as to enable students to achieve more intuitive, more easy to understand the connotation and relationship of two.%纳税调整、递延所得税是会计学教学内容的难点，也是困扰学生学习的主要问题之一。本文主要采用重新简化设计二者定义、利用实例直观演示二者关系的办法，力求让复杂的问题简单化，从而达到让学生更直观、更易理解二者内涵及关系的目的。
  • 摘要：At present, the biomedical model has occupied the leading position in the development of medicine. The bio-psycho-social model as the developing direction of the medical model has been put forward for 37 years up to now, but it has not been able to get effective practice. This article analyzed the cause of this happening and argues that the new mode of modern holistic medicine takes the overall health and other factors into account. Updating the knowledge structure, changing understanding and other methods, would help break through the limitations existing in the medical knowledge and practice aspects of bio-psycho-social medical model, can fundamentally change the status quo that modern medical practice has not been effectively guided, so then to better direct the development of clinical career.%目前，生物医学模式在医学发展中占据主导地位。虽然生物-心理-社会医学模式作为医学模式发展的方向至今已经被提出37年，但是并未能得到有效实践。本文针对这种情况发生的原因进行了分析，认为新的现代整体医学模式考虑了整体健康等因素，通过更新知识结构、改变认识等方法，有利于突破生物-心理-社会医学模式在医学认识和实践方面存在的局限性，可从根本上改变现代医学实践未能得到有效指导的现状，从而更好地推进临床事业的发展。
  • 摘要：以社会学、经济学、体育学等多学科理论为指导，采用文献资料法、问卷调查法和访谈法。对绵阳市居民休闲体育行为和休闲体育消费现状进行分析，结果显示以绵阳为代表的西部中等城市居民休闲体育消费特征与国内一、二线城市相比有一定区别，表现为消费水平偏低、消费类型单一，消费市场潜力巨大；居民参与休闲体育运动的普及率较高，运动场所的选择以政府公益性场所为主；体育消费的类型主要为体育用品和体育服饰。据此，提出此类城市休闲体育消费水平进一步提升的合理建议和对策。%The paper takes theories of sociology, economics and sports science as its theoretical basis, by means of literature consultation ,questionnaire and interview method, analyzes the leisure sports behavior and leisure sports consumption situation of the residents in Mianyang. The results show that Mianyang, a west city of China, has different characters to the east or big cities, the consumption level is low, the consumption type is single, and there has a huge potential market. The residents have a high popularity rate participating in sports, and most of them choose the public place doing exercise. The main type of consumption is sports products and sports clothes. Thus, there are given some suggestions and countermeasures to improve the consumption level in west medium-sized city.
  • 摘要：运用访谈法、问卷调查法，对福建省中学体育教师的工作投入进行初步的探讨研究。结果表明：福建省中学体育教师的工作投入状况较好；工作乐趣的得分最高，工作专注的得分最低；不同年龄、教龄、学历、学校类别、职称和地域的中学体育教师的工作投入水平存在显著性差异。%Through the interviews, questionnaire survey method, Fujian province middle school PE teachers’ job involvement was preliminary studied. The results showed that Fujian province middle school PE teachers’job involvement was in good condition; work fun was highest score, the work attention was lowest score ; there were notable differences in job involvement level of different age, seniority, education, school category, positional title and region .
  • 摘要：Dou Jiao Dance originates from the needs of Shui nationality’s life and work, and has formed rich local national culture in the long history, distinctly reflected the customs, thoughts and feelings, religion and beliefs of Shui nationality. It contains their pursuit of life value, and is the treasure of Chinese national culture. By applying such methods as documentary analysis, field investigation and logic analysis, the author makes a research on the historical origin, manifestation, cultural connotation and values of Shui Dou jiao Dance and explores the ancient and mysterious Shui culture reflected by Dou Jiao Dance, in the hope of contributing some theoretical reference for the further studying of Dou Jiao Dance culture and Shui culture.%贵州水族斗角舞文化起源于水族人民的生产劳动与生活的需要，在漫长的历史岁月里形成了具有浓郁地方特色的民族文化，鲜明地反映着水族人们的生活习俗、思想感情、宗教信仰等，蕴含着对生命价值的追求，是我国民族文化的魁宝。运用文献资料法、实地调查法、逻辑分析法，对水族斗角舞文化的历史渊源、表现形式、文化内涵、价值等方面进行调查研究，探索斗角舞背后所反映的古老而又神秘的水族文化，以期为进一步研究水族斗角舞文化以及水族文化提供一定的理论参考。
  • 摘要：The successful host of called vocational Olympics for vocational skills contest among vocational colleges has promoted vocational education teaching reform, strengthened students' practical ability, the professional basic skills, and improved the quality of vocational education teaching. In this article, through the analysis of vocational skills competition outline of "electronic products design and manufacture", ability-orientation as guidance, together with the current teaching practice, the existing problems are proposed in the teaching process of electronic products design and production. The integration of“teaching, learning and practice" in the curriculum implementation, and the teaching mode of content project are reformed and explored, which shows the obvious effect.%堪称职业教育奥林匹克的职业院校技能大赛成功举办，促进了职业院校教育教学改革，加强了学生实践能力和职业基本技能，提高了职业教育教学的质量。本文通过分析“电子产品设计与制作”职业技能竞赛大纲与能力目标为导向，结合当前的教学实际，提出了电子产品设计与制作课程教学过程中存在的问题，并对课程实施“教、学、做”一体化、内容项目化教学模式等进行的改革与探索，效果明显。
  • 摘要：全概率公式和贝叶斯公式是概率论教学的一个重难点，一般的授课方法是直接给出公式内容，对照例题套用公式，学生接受起来比较困难，理解不了公式的内涵。笔者结合课堂实践采取一种新的授课方式：结合实例给出应用背景、引导学生理解公式内涵、妙用概率树图法求解公式，以此方法简化了思考过程且达到了学以致用的目的，收到了很好的教学效果。%The total probability formula and the bayes formula are the key and difficult points in probability teaching. The general teaching method is that the contents of the formulas are given directly, then used mechanically, It is difficult for students to accept and understand the connotation of the formulas. A new teaching method is adopted by the author combining classroom practice, giving the application background in combination with examples,leading the students to understand the connotation of the formulas, using the probability tree graph method wonderfully to solve the formula, so that the method can simplify the thinking process and make us study for the purpose of application. and has achieved a very good teaching result.
  • 摘要：The area of Yan227 on Shengli Oilfield is located on the higher position of sandyconglomerate of the north steep slope tectonic zone of Yan227 well on the Dongying hollow of Jiyang Depression. In this article,the functions and applications of Organic Amine Strong Inhibition Drilling Fluid System which take the Organic Amine Inhibitor,namely WAN-1,as the main treatment agent is estimated in order to solve some complex issues such as swelling because of hydration and collapse of mudstone on the Yan227 Area of Shengli Oilfield.This research shows that, WAN-1 inhibits the process from clay to slurry effectively, limits the capacity of clay. The use of WAN-1 inhibits the hydration and dispersion of shale effectively, and it is stable at high temperature. Organic Amine Strong Inhibition Drilling Fluid has similar ability of restraining the expansion and dispersion of cuttings as Oil Base Drilling Dluid System,the System will be used to stabilize the borehole preferably,improve the mechanical drilling speed and shorten the drilling cycle. It can not surmount the common method of adding a largh number of crude oil for enhance lubricating property in the current,so we need to research the technology which is similar to oil-base mud in order to reduce the friction resistance more effectively in future.%盐227-3HF井是一口非常规水平井，上部地层泥岩蒙脱石含量高，沙三段、沙四上上部砂泥互层易垮塌；沙三下和沙四上纯上亚段泥岩微裂缝及层理发育，极易发生坍塌掉块，造成起下钻阻卡、憋泵，钻井液技术难度大。使用有机胺强抑制钻井液体系，配合现场钻井液维护处理工艺，施工井壁稳定，解决了泥页岩地层水化垮塌的难题，提高了机械钻速，缩短了钻井周期。
  • 摘要：在多出口局域网中合理配置策略路由实现了链路冗余，提高了内网用户访问Internet资源的速度。然而，该方法未能实现数据流的双向分配控制，外网用户访问内网资源的速度和可靠性难以保证。本文采用BIND软件实现域名的智能解析，满足按照请求者所在的网域对同一域名做出不同的解析。智能DNS结合NAT技术实现了数据流的双向分配控制，从而最大限度的提高了外网用户访问内网资源的速度。%In the multi-outlet LAN routing strategy to achieve a rational allocation of link redundancy, which improves network users to access Internet resources speed. However, this approach failed to achieve two-way data flow distribution control, speed and reliability within the extranet users to access network resources is not guaranteed. This paper puts forward that using BIND software achieve domain name intelligent analysis, in order to satisfy the domain requesters on the same domain to make a different parsing. Intelligent DNS NAT technology achieves a two-way combination of distribution control data flow, which maximize improves the speed of extranet users accessing network resources.
  • 摘要：Informatization is the essence and core of the country's new military revolution, and communication is one of the forces the concentrated reflection of modern high technology. It is the basic platform for establishing informatization troops and an important part of the battle effectiveness. This article is based on the fourth generation mobile communication technology, using 4G broadband multimedia cluster communication system as an example, discusses a new generation of cluster system architecture of communication system , network mode and business applications. It gives the direction of the informatization construction of armed police forces.%信息化是我国新军事变革的本质和核心，通信是部队现代高新技术的集中体现之一，是建立信息化部队的基本平台，是部队战斗力的重要组成部分。本文基于第四代移动通信技术TD-LTE，以4G宽带多媒体集群通信系统为例，讨论了武警部队新一代集群通信系统的系统架构、组网方式和业务应用，给出了武警部队信息化建设的方向。
  • 摘要：This paper defines the agriculrual products and the competitiveness of agriculrual products by combining with realities of Dazhou City. It puts forth that full-range standardazation, green marketing, brand marketing and improved systematization of peasant should be carried on to enhance the competitiveness of agriculrual products. A pillar system that makes up of ideas, technology, human resources, policy and infrastructure should also be bulit .%文章结合达州市实际，从界定农产品、农产品竞争力概念出发展开分析，认为：提高达州市农产品竞争力应当实施全过程标准化、绿色营销、品牌营销，提高农民的组织化程度；构建观念、科技、人才、政策、基础设施等支撑体系。
  • 摘要：By referring to relative material, surveys, interviews and statistics, this paper does some research on the demands of the sports service for the rural left-behind children in Minxi revolutionary base area. It shows the demands mainly including aspects of sports fields, sports items, sports activities and sports culture. It suggests that the government should purchase the sports service for these children, so as to provide reference for the application of governmental purchasing service in sports area.%运用文献资料法、田野调查法、访谈法和数理统计等研究方法，对闽西革命老区农村留守儿童的体育服务需求进行调研。结果表明：农村留守儿童对体育服务的需求集中在活动场馆、活动项目、活动组织和体育文化信息等方面。提出政府购买农村留守儿童体育服务需求的设想，以期为“政府购买服务”在体育领域中的运用提供参考建议。
  • 摘要：本文以福州外语外贸学院为样本，结合花样跳绳教学特点、难点，通过调整团队组成、引入有效手段和“回归快乐体验”等手段提高教学效果，发挥体育教学在大学生团队精神培养的作用。%This paper takes the Fuzhou College of Foreign Studies and Trade for a sample, combined with rope skipping teaching characteristics, difficulty, by adjusting the composition of the team, the introduction of effective means and "return to a happy experience" and other means to improve teaching effectiveness and play sports teaching role in college student’s team spirit training.
  • 摘要：Through the questionnaire survey method, literature method, comparative analysis method and so on, this article conducted the preliminary analysis research on sports injury situation of the students from physical education of Sports Institute of Huaibei Normal University and the causes of sports injury. The survey showed that most of the students had different degrees of sports injury, common parts of the fingers, wrist, knee, waist and so on, the main reason of the injury was the software and hardware facilities were lag, the preparatory activities were insufficient, technical movement was not standard, the psychological state was poor ,students lacked knowledge of sports health etc.%本文通过问卷调查法、文献资料法、对比分析法等，对淮北师范大学体育学院体育教育专选学生运动损伤情况及造成运动损伤的各种因素进行初步分析研究。调查表明：大部分学生都有不同程度地运动损伤，常见的部位有手指、腕关节、膝关节、腰部等，损伤的主要原因是学校软件硬件设施滞后、准备活动不够充分、技术动作不规范、心理状态欠佳、学生缺乏运动保健知识等。
  • 摘要：针对“C++面向对象程序设计”课程教学中存在的问题，提出了包括验证型、设计型、综合型的多样型实践教学改革实施方案，该方案有效的提高了学生的学习兴趣及综合编程能力。%According to teaching problems of“C++ object oriented programming”course, this paper puts forward the scheme of the teaching reform practice of biodiversity, including verification type, design type, comprehensive experiment, and gives the implementation method. This scheme effectively improves the students' learning interest and comprehensive ability of programming.
  • 摘要：Land use/cover change(LUCC) has a profound impact on the development of regional nature, economy, and eco-environment as well. Taking Xinjin as an example, this paper, on the basis of remote sensing and GIS software, probes into the spatial pattern of land use/cover change from 2004 to 2009 through quantitative and qualitative analysis. The results indicate that area of arable land and other land decreases, while that of woodland, residential land and rivers increases; there lies mutual transformation among various land use types; the immerse spatial changes have taken place in land use and cover, and the structure of land uses has stepped into the rapid adjustment period. Policies, urbanization as well as economic development are the major driving force for the change of land use types.%土地利用/覆被变化对于区域的自然、经济和生态发展有着深刻的影响.本文以新津县为例,借助遥感和GIS软件,从定量和定性的角度分析新津县2004-2009年土地利用/覆被变化空间格局.结果表明:耕地和其他用地面积减少,林地、居住用地和河流水域面积增加;土地利用类型之间存在相互转换的情况;土地利用覆被的空间变动较大,土地利用结构处于快速调整期.政策制度、经济发展、城镇化进程是土地利用类型发生变化的主要驱动力.
  • 摘要：利用分块矩阵和初等变换的性质给出了3种证明Sylvester不等式的方法,并得到了Sylvester不等式的本质及其等号成立的充要条件.%In this paper ,by using the properties of elementary transformation and partitioned matrices we give three method to prove Sylvester inequality and we explore the nature of the Sylvester inequality and the necessary and sufficient conditions when equals established.
  • 摘要：The greatest common factor is also called the highest common divisor, which is the highest one of the common divisors of two or more integers. The property of the greatest common factor of two integers will be mainly discussed with its concrete proof.%最大公因数也称最大公约数,是两个或多个整数共有约数中最大的一个.本文主要讨论两个整数的最大公因数的性质,并给出具体的证明.

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