Analysis on the Competitiveness of Industrial Real Estate Based on Diamond Model ——Taking Jiangxi Province as an Example

Based on the current development of industrial real estate of Jiangxi Province, comprehensive analysis was conducted to 6 aspects using the idea of diamond model, namely, factor conditions, demand conditions, related and supporting industries, firm strategy, structure and rivalry, government and chance through the comparison with the other industrial real estates and analysis on horizontal competition in China. Development countermeasures were investigated to improve the competitiveness of the industrial real estate in Guangxi, putting forward the strategies of developing the role of government and business, seizing the opportunities of the times, city-industry integration development, implementation of industrial integration and integration of city development, the implementation of industrial integration and investment planning.

Analysis on the Core Competitiveness of Rice Seed Industry in Guangxi Province Based on Diamond Model

By using diamond model, the current development status and core competitiveness of the rice seed industry in Guangxi Province were analyzed in detail from the 6 aspects of production factors, demand factors, related industries and support industries, firm strategy, chance factor and government factor, which clarified the advantages of the rice seed industry of Guangxi in the nature and technological factors, firm strategy and government policy, and the disadvantages in demand factors, production cost, infrastructure and related industries. And the corresponding countermeasures were proposed to enhance the competitiveness of the rice seed industry of Guangxi.

The Industrial Cluster of the Primary Agriculture Based on "Diamond Model"

The status quo and problems of industrial cluster of the primary agriculture is discussed by dividing the cluster into primary cluster and advanced cluster and by using Michael Porter's Diamond Model from the five aspects including production factors, demand factors, relevant industry and supporting industry, the strategy and structure of enterprises and horizontal competition and opportunities and government. In the end, the countermeasures on promoting the development and expansion of industrial cluster of primary agriculture are put forward. Firstly, intensifying the training on farmers and introduce into advanced science and technology results; secondly, perfecting the construction of infrastructure, creating famous brand and widening the channels for funding; thirdly, strengthening the development of relevant industries and supporting industries; fourthly, perfecting land transfer system; improving the degree of systematization and cultivating pillar industries; fifthly, intensifying the government' support on industrial cluster.

Cluster Development of Zhengzhou Urban Agriculture Based on Diamond Model

Based on basic theory of Diamond Model,this paper analyzes the competitive power of Zhengzhou urban agriculture from production factors,demand conditions,related and supporting industries,business strategies and structure,and horizontal competition.In line with these situations,it introduces that the cluster development is an effective approach to lifting competitive power of Zhengzhou urban agriculture.Finally,it presents following countermeasures and suggestions:optimize spatial distribution for cluster development of urban agriculture;cultivate leading enterprises and optimize organizational form of urban agriculture;energetically develop low-carbon agriculture to create favorable ecological environment for cluster development of urban agriculture.

Numerical simulation of materials-oriented ultra-precision diamond cutting:review and outlook

Ultra-precision diamond cutting is a promising machining technique for realizing ultra-smooth surface of different kinds of materials.While fundamental understanding of the impact of workpiece material properties on cutting mechanisms is crucial for promoting the capability of the machining technique,numerical simulation methods at different length and time scales act as important supplements to experimental investigations.In this work,we present a compact review on recent advancements in the numerical simulations of material-oriented diamond cutting,in which representative machining phenomena are systematically summarized and discussed by multiscale simulations such as molecular dynamics simulation and finite element simulation:the anisotropy cutting behavior of polycrystalline material,the thermo-mechanical coupling tool-chip friction states,the synergetic cutting responses of individual phase in composite materials,and the impact of various external energetic fields on cutting processes.In particular,the novel physics-based numerical models,which involve the high precision constitutive law associated with heterogeneous deformation behavior,the thermo-mechanical coupling algorithm associated with tool-chip friction,the configurations of individual phases in line with real microstructural characteristics of composite materials,and the integration of external energetic fields into cutting models,are highlighted.Finally,insights into the future development of advanced numerical simulation techniques for diamond cutting of advanced structured materials are also provided.The aspects reported in this review present guidelines for the numerical simulations of ultra-precision mechanical machining responses for a variety of materials.

Structural model of substitutional sulfur in diamond

Based on ab initio calculations,it is found that the donor center of substitutional sulfur(S)in diamond with C2v symmetry is more stable than that with C3vsymmetry,which is different from previous reports in literature.The energy difference of C2vand C3vstructures is qualitatively affected by the supercell size,and the 216-atom supercell could be proposed as the minimum to obtain stable configuration of substitutional S in diamond.Using supercells of up to 512 atoms,the donor level of substitutional S with C2vsymmetry is deep.

Diamond Modeling in World Lithium Brine Utilization Assessment

The global transition away from hydrocarbons toward energy alternatives increases demand for many scarce metals.Among these is lithium,a key component of lithium-ion batteries for electric and hybrid vehicles.

基于Diamond Model的中国承接国际服务外包问题研究

通过波特的Diamond Model分析发现,中国承接国际服务外包在生产要素、需求条件、支撑及配套产业、企业竞争及战略组织、政府作用和把握机遇等方面存在较大问题。该产业需要在创新人才培养方式、刺激市场需求、完善基础设施、实现集聚发展等方面做出努力,实现又好又快发展。

Competitiveness Analysis of Processing Industry Cluster of Livestock Products in Inner Mongolia Based on "Diamond Model"

Using Michael Porter's "diamond model", based on regional development characteristics, we conduct analysis of the competitiveness of processing industry cluster of livestock products in Inner Mongolia from six aspects (the factor conditions, demand conditions, corporate strategy, structure and competition, related and supporting industries, government and opportunities). And we put forward the following rational recommendations for improving the competitiveness of processing industry cluster of livestock products in Inner Mongolia: (i) The government should increase capital input, focus on supporting processing industry of livestock products, and give play to the guidance and aggregation effect of financial funds; (ii) In terms of enterprises, it is necessary to vigorously develop leading enterprises, to give full play to the cluster effect of the leading enterprises.

Grey relationship analysis and grey forecasting modeling on thermal stability of synthetic single diamond

Through analyzing 7 Ib-type samples of synthetic single diamonds by their DTA and TG in air, we ascertained the extrapolated onset temperature on the curves of DTA as the characteristic temperature of their thermal stabilities. Based on the grey system theory, we analyzed 4 factors influential in the thermal stability by the grey relationship analysis, a quantitative method, and derived the grey relationship sequence, that is, the rank of the influence extent of 4 factors on the thermal stability. Furthermore, we established the grey forecasting model, namely GM(1,5), for predicting the thermal stability of single diamonds with their intrinsic properties, which was then examined by a deviation-probability examination. The results illustrate that it is reasonable to take the Extrapolated Onset Temperature in DTA as the characteristic temperature for thermal stability (TS) of Ib-type synthetic single diamonds. The nitrogen content and grain shape regularity of diamonds are dominating factors. Likewise, grain size and compressive strength are minor factors. In addition, GM(1,5) can be used to predict the thermal stability of Ib-type synthetic single diamonds available. The precision rank of GM(1,5) is ‘GOOD’.

Validation of Numerical Modeling for the Prediction of Elastic and Failure Behavior of Diamond Powder Filled Woven Composites

A numerical investigation was carried out to examine the role of micro-sized diamond powder filler on the on-axis tensile stiffness properties of the standard modulus T300 and the high modulus YS90A woven fabric composite plates by progressive damage modeling. Finite element modeling (FEM) results for the T300 composite with and without diamond powder predicted a specific case of fiber failure in all the plies showing the characteristics of brittle failure. Static tensile tests were carried out on the YS90A composite coupons containing no diamond powder (DP) and filled with 6% and 12% volume fractions of DP. A higher content of diamond powder in the coupons led to agglomeration. This induced stress concentrations and subsequently reduced the mechanical properties. FEM was carried out considering specimens with and without an induced stress concentration geometry in the YS90A coupons filled with DP. The results of the on-axis tensile tests indicated a delamination type of failure in both cases with additional fiber fracture in the Open Hole Tensile (OHT) coupons.

Diamond Model Based Analysis on Cooperation between of Poverty Alleviation and Emission Reduction in Agricultural Counties: A Case Study of Huoshan County in Anhui Province

2020 is the year of decisive stage for building a well-off society in an all-round way.On the winter vacation of 2020,we went to Huoshan County,Anhui Province,an old revolutionary area,and conducted a social survey for nearly a month.Through interviews,on-site observations,and access to materials,we clearly found that the local party committee and government actively responded to the call of the state,practiced the"two mountains"theory,turned a poor and backward agricultural county into a national ecologically civilized and well-off county,and realized the coordinated progress of poverty alleviation and energy conservation and emission reduction.Starting from the government policies and rural facts of Huoshan County,a national ecological county,and using Porter’s"Diamond Model",our team used Huoshan County’s environmental advantages and disadvantages,economic prosperity and decline as comparison conditions,and analyzed external factors such as factor conditions,opportunities,related and supporting industries,government forces,etc.,to come up with pertinent recommendations for the development of agricultural county-level characteristic industries.

职业教育赋能新质生产力发展的内涵要义、运行逻辑和推进路径

新质生产力是新时期我国推动高质量发展,加快中国式现代化建设,解放和发展生产力的重要思想体现,具有要素配置优、产业体系新、创新驱动快、数字赋能强、人力配置准等本质特征。职业教育赋能新质生产力发展,推动中国式现代化高质量发展是时代赋予的使命和责任。研究采用波特的国家竞争优势“钻石”模型对职业教育赋能新质生产力发展的要素组成和运行逻辑进行了探讨,分析了职业教育体系建设改革的运行表征和推进路径。研究认为,现代职业教育体系建设应充分发挥政府统筹作用,促进产教伴生关系;推动多元协同共建,深化校企依赖关系;打造“五金”新基建,重构教学组织关系;优化研发平台组织,创新科教融汇关系;优化数字赋能生态,建立虚实融合关系;完善产教治理体系,处理好内外环境关系。

刀具磨损和变摩擦系数对切削力的影响

刀具磨损和摩擦系数对切削力、表面质量有显著影响。为进一步研究刀具磨损和摩擦系数对切削力的影响规律,提出了同时考虑刀具磨损和变摩擦系数的切削力模型。首先分析了刀具磨损对刃口半径的影响规律,指出随刀具磨损增加,刃口半径增加;其次明确了刀具磨损及刃口半径对最小切削厚度的影响规律,认为最小切削厚度随刀具磨损、刃口半径的增加而增加。进一步用单晶金刚石刀具切削铝合金,并在切削深度、进给速度、刀具刃口半径、刀具磨损宽度以及恒定摩擦系数与变摩擦系数等方面进行了对比。研究表明,随切削深度、进给速度增加,法向切削力与切向切削力增加;随刃口半径从150 nm增加到450 nm,切向力增加了1.13倍,法向力增加了2.12倍;随刀具磨损宽度从0增加到0.55μm,切向力增加了1倍,法向力增加了约7倍;恒定摩擦系数切削力最大误差高达41%,变摩擦系数切削力最大误差在11%以内。因此,同时考虑了刀具磨损与变摩擦系数的切削模型与实际切削过程更加吻合。

供销社改革发展再审视:组织特征、发展机制与若干思考

面对持续活跃于城乡商贸等领域且关注度较高的供销社,文本以回归组织视角进行审视,从环境、社会结构、目标、技术、参与者五个方面分析供销社的组织特征,阐释了供销社运行和发展的合法性机制、效率性机制与合宜性机制,考察了供销社改革实践中新型合作经济、农业生产服务、完善基层组织和数字技术赋能等典型发展路径,并对供销社的组织质性界定、发展方向研判、综合改革重点、持续发展动能等关键议题进行辨析,以期为我国供销社未来的改革发展提供有益启示。

基于钻石模型的胶合板国际竞争力来源实证研究

出口是中国胶合板产业发展的重要动力因素,但近年来中国胶合板出口竞争呈现不利态势,分析胶合板国际竞争力来源及其动态变化,有助于中国胶合板重构竞争优势。文章利用UNComtrade、WDI数据库等相关数据,以国际市场占有率表征的实际国际竞争力为导向,以波特钻石模型的国际竞争力来源要素为指导选择代表性指标,运用多元线性回归模型实证研究胶合板国际竞争力的实际来源。结果显示:(1)劳动力、资源、资本等3个传统生产要素是胶合板国际竞争力的主要来源,影响程度分别为0.81、0.42、0.20;相关支持性产业水平也发挥着重要作用,影响程度为0.12;受刨花板、中密度纤维板替代和环保需求增强等影响,胶合板面临需求困境,需求的影响程度为-0.36;技术要素与企业战略、结构和同业竞争因素影响不显著。(2)异质性分析表明,随着时间变迁,胶合板国际竞争力对丰富劳动力的依赖程度降低,劳动力成本影响显化,资源禀赋作用上升,资本要素作用增强,工业基础水平作用显现,胶合板呈现从劳动密集型转向资本技术密集型的趋势。文章构建了国际竞争力来源的实证研究逻辑,提供了国际竞争力来源研究的时间和空间视角,弥补了胶合板国际竞争力来源计量经济研究的不足。结合中国胶合板产业实际,提出重组资本与劳动要素、夯实资源基础、改善需求条件、发挥相关支持性产业作用、促进高水平竞争等政策启示,重构中国胶合板竞争优势,再塑中国胶合板国际竞争力。

我国农产品国际竞争力评价及影响因素分析

经济全球化发展的格局下,我国作为传统农业大国,发展农产品国际贸易,提升农产品国际竞争力,是进一步扩大高水平开放、加快融入世界经济的重要组成部分。基于对我国农产品国际贸易发展现状分析,运用国际市场占有率、贸易竞争力指数以及显示性比较优势指数对我国农产品的国际竞争力进行测算,并通过钻石模型分析影响我国农产品国际竞争力的因素,最后提出针对性的对策建议,以期提升我国农产品国际竞争力。

我国绿色建筑政策研究:基于扩展钻石模型和政策工具

构建绿色建筑扩展钻石模型,明确了绿色建筑行业发展的关键要素与政府的核心效能。基于此,进一步构建绿色建筑“政策工具—全生命周期”二维分析框架,利用Nvivo12软件对62份政策文本进行编码统计与分析。研究发现,现有政策工具针对需求条件、生产要素、企业战略与支持性产业的影响有限。并提出政策建议未来的着力方向:拓展运营维护阶段政策的使用,加大需求端的激励措施;提升生产要素供应能力与质量,重视人才培养和企业能力建设;健全全流程精准管控体系,增强企业金融激励;落实技术创新扶持,完善全产业链政策体系。

河北省农产品国际竞争力评价及影响因素研究

发展农产品贸易,提升农产品国际竞争力对促进河北省农业高质量发展具有重要意义。以2006—2020年河北省农产品生产需求等相关数据为依据,采用熵权法构建农产品国际竞争力综合评价指标体系,研究了河北省农产品国际竞争力水平及发展趋势,并综合运用双钻石模型,从国际国内2个层面探究河北省农产品国际竞争力的影响因素,以期为全省农产品国际竞争力提升提供参考依据。结果表明:河北省农产品国际竞争力呈现稳步增长态势,农产品全球指标与国内指标走势基本一致,规模以上农副食品加工业R&D人员和沿海港口货物吞吐总量对竞争力的影响较大。

RCEP成员国数字贸易竞争力测算及影响因素研究

数字贸易的发展迸发着强大的力量,RCEP的签订与生效为其成员国数字贸易的发展带来了新机遇。文章基于2005—2021年RCEP15个成员国的数字贸易数据,在测算数字贸易综合竞争力的基础上,以迈克尔·波特的“钻石模型”为理论依据,选择9个影响数字贸易竞争力的因素,对RCEP数字贸易国际竞争力的影响因素进行实证。结果显示:RCEP成员国数字贸易的规模呈现不断扩大的态势,但整体上竞争力优势不明显,区域成员国内部数字贸易发展不平衡,存在较大差距;信息化设施、城市化水平、数字贸易产业开放度和相关政策对RCEP成员国数字贸易国际竞争力产生显著的积极作用,并且对中日韩澳新五国和东盟十国具有异质性的影响。据此,文章提出积极推进城市化建设、挖掘数字需求消费、扩大数字贸易开放程度、完善数字基础设施和注重RCEP政策优势的建议对策。