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一种自张紧式伸缩皮带导板的设计计算 预览
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作者 闫玉平 代英男 +3 位作者 张康武 马续创 吕阳阳 李菲 《重型机械》 2019年第4期78-81,共4页
各类自动化连续生产线经常使用伸缩皮带导板作为过渡装置,皮带的张紧力是保障皮带正常稳定运行的关键。张紧力过小,达不到皮带输送、传动所需要的动力,并且可能出现打滑、跑偏现象;张紧力过大,可能导致皮带支撑辊的弯曲甚至损坏,也影响... 各类自动化连续生产线经常使用伸缩皮带导板作为过渡装置,皮带的张紧力是保障皮带正常稳定运行的关键。张紧力过小,达不到皮带输送、传动所需要的动力,并且可能出现打滑、跑偏现象;张紧力过大,可能导致皮带支撑辊的弯曲甚至损坏,也影响皮带的使用寿命。而且传统皮带张紧机构结构复杂、人工调节不便、效率低下。本文设计了一种新型自张紧式伸缩皮带导板,导板在伸长过程中皮带可以自动产生张紧。介绍了该伸缩皮带导板的自张紧原理及其皮带张紧度的分析计算,实践证明新型自张紧式伸缩皮带导板使用效果良好,免去了人工调节张紧,大大提高了生产效率。 展开更多
关键词 皮带 自张紧 张紧力 伸缩皮带导板
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Clarifying Misunderstandings, Conveying the Essence 预览
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作者 WANG PENG 《今日中国:英文版》 2019年第4期17-19,共3页
THIS year marks the sixth anniversary of the inception of the Belt and Road Initiative (BRI). In April 2019, China will host the second Belt and Road Forum for International Cooperation in Beijing. While welcoming gue... THIS year marks the sixth anniversary of the inception of the Belt and Road Initiative (BRI). In April 2019, China will host the second Belt and Road Forum for International Cooperation in Beijing. While welcoming guests from all over the world, we also need to make clarifications on some internationally prevalent misunderstandings about the initiative. 展开更多
关键词 BELT and ROAD INITIATIVE (BRI) BELT and ROAD FORUM International Cooperation
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Oligocene subduction-related plutonism in the Nodoushan area,Urumieh-Dokhtar magmatic belt:Petrogenetic constraints from U-Pb zircon geochronology and isotope geochemistry 预览
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作者 Badieh Shahsavari Alavijeh Nematollah Rashidnejad-Omran +2 位作者 Fatma Toksoy-Koksal Wenliang Xu Jalil Ghalamghash 《地学前缘:英文版》 CAS CSCD 2019年第2期725-751,共27页
Geochemical data and SreNd isotopes of the host rocks and magmatic microgranular enclaves(MMEs)collected from the Oligocene Nodoushan Plutonic Complex(NPC)in the central part of the Urumieh eDokhtar Magmatic Belt(UDMB... Geochemical data and SreNd isotopes of the host rocks and magmatic microgranular enclaves(MMEs)collected from the Oligocene Nodoushan Plutonic Complex(NPC)in the central part of the Urumieh eDokhtar Magmatic Belt(UDMB)were studied in order to better understand the magmatic and geodynamic evolution of the UDMB.New U-Pb zircon ages reveal that the NPC was assembled incrementally over ca.5 m.y.,during two main episodes at 30.52±0.11 Ma and 30.06±0.10 Ma in the early Oligocene(middle Rupelian)for dioritic and granite intrusives,and at 24.994±0.037 Ma and 24.13±0.19 Ma in the late Oligocene(latest Chattian)for granodioritic and diorite porphyry units,respectively.The spherical to ellipsoidal enclaves are composed of diorite to monzodiorite and minor gabbroic diorite(SiO2=47.73-57.36 wt.%;Mg#=42.15-53.04);the host intrusions are mainly granite,granodiorite and diorite porphyry(SiO2=56.51-72.35 wt.%;Mg#=26.29-50.86).All the samples used in this study have similar geochemical features,including enrichment in large ion lithophile elements(LILEs,e.g.Rb,Ba,Sr)and light rare earth elements(LREEs)relative to high field strength elements(HFSEs)and heavy rare earth elements(HREEs).These features,combined with a relative depletion in Nb,Ta,Ti and P,are characteristic of subduction-related magmas.Isotopic data for the host rocks display ISr=0.705045-0.707959,εNd(t)=-3.23 to+3.80,and the Nd model ages(TDM)vary from 0.58 Ga to 1.37 Ga.Compared with the host rocks,the MMEs are relatively homogeneous in isotopic composition,with ISr ranging from 0.705513 to 0.707275 andεNd(t)from-1.46 to 4.62.The MMEs have TDM ranging from 0.49 Ga to 1.39 Ga.Geochemical and isotopic similarities between the MMEs and their host rocks demonstrate that the enclaves have mixed origins and were most probably formed by interactions between the lower crust-and mantle-derived magmas.Geochemical data,in combination with geodynamic evidence,suggest that a basic magma was derived from an enriched subcontinental lithospheric mantle(SCLM),presumably trigger 展开更多
关键词 Urumieh-Dokhtar MAGMATIC BELT Granitoid rocks SUBDUCTION Zircon U-Pb ages Radiogenic isotopes Central Iran
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The “Belt & Road” Initiative and Its Chinese Traditional Philosophical Root 预览
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作者 ZHANG Wentao 《国际关系与外交:英文版》 2019年第3期110-121,共12页
This article analyzes the relations between Chinese traditional philosophy and the “Belt & Road” Initiative. The idea of “Belt & Road” Initiative has a deep root in Chinese traditional philosophy. Silk Roa... This article analyzes the relations between Chinese traditional philosophy and the “Belt & Road” Initiative. The idea of “Belt & Road” Initiative has a deep root in Chinese traditional philosophy. Silk Road has become a symbol of peace and friendship in Chinese culture and it always brings back the good memories in Chinese people about the prosperity of trade and economy. The both Silk Roads not only witnessed the exchange and communication between China and western areas to China, but also the most prosperous time in Chinese history. China proposes the “Belt & Road” Initiative with the purpose of constructing a more prosperous world by the jointing efforts of the nations all over the world. Because of the barriers and misconceptions in transcultural and cross-cultural activities, people from different cultures have difficulty in understanding the “Belt & Road” Initiative with its founding meanings. This paper aims to offer clear image about the background, context, and core points of the “Belt & Road” Initiative. In fact, the “Belt & Road” Initiative is natural reflection of Chinese traditional philosophy. If the essence of Chinese traditional philosophy, for example,“harmony but diversity”, the “peace and war” as well as the balance of “Yin” and “Yang” could be understood well, it would be much easier to have a correct understanding about the concept of the “Belt & Road” Initiative. 展开更多
关键词 BELT & ROAD INITIATIVE Chinese PHILOSOPHY
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Deepening Oil and Gas Cooperation in Central Asia Against the Background of the Belt and Road Initiative 预览
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作者 Wang Zhen Dong Xuan 《中国油气:英文版》 CAS 2019年第4期3-10,共8页
Energy cooperation is an important part of building the Belt and Road,and Central Asia is the core area of oil and gas cooperation on the Belt and Road route.As one of the first enterprises to“go global”,CNPC has ma... Energy cooperation is an important part of building the Belt and Road,and Central Asia is the core area of oil and gas cooperation on the Belt and Road route.As one of the first enterprises to“go global”,CNPC has made positive progress in oil and gas cooperation with Belt and Road countries.Exploring oil and gas cooperation in Central Asia in the new situation is of great practical significance for jointly building the Belt and Road,promoting regional cooperation and ensuring China's energy safety. 展开更多
关键词 BELT and ROAD Energy Oil Natural gas COOPERATION
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The Belt and Road Initiative in Russian Scholar's Eyes 预览
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作者 Gui Jie 《中外文化交流:英文版》 2019年第1期47-48,共2页
A new book about China's Belt and Road Initiative written by famous Russia sinologist Yuri Tavrovsky entitled Wings of Big Power:Journey to the West along the Belt and Boad Initiative was published in 2017.
关键词 China's BELT A new BOOK INITIATIVE
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Current Status of the Oil Refining Industry in China and Prospects for Cooperative Development 预览
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作者 Cao Jianjun 《中国油气:英文版》 CAS 2019年第1期52-58,共7页
The oil refining industry in China supports the needs of national economic development and has gone through industrial upgrading at all stages, as represented by the upgrades in the quality of refined oil products.Cur... The oil refining industry in China supports the needs of national economic development and has gone through industrial upgrading at all stages, as represented by the upgrades in the quality of refined oil products.Currently, it has acquired strong technical and engineering strength and delivered good results in scale, information technology and environmental friendliness. However, compared with the world’s leading oil refining powers, the oil refining industry in China still lags behind in terms of overall competitiveness. There is an urgent need to enhance its competitiveness and adjust its product structure, plant structure and capacity structure to both launch a new round of industrial upgrading and coordinate with the associated industries. Great potential exists for China to cooperate with the countries along the Belt and Road initiative in various fields such as petroleum resources, product markets and technical equipment. Together, multi-dimensional cooperation bonded by resources, markets, technologies and capital/funds can be carried out, and cooperation between the upstream and downstream industries throughout the industry chain can be facilitated. There is much to expect from the prospects for cooperative development. 展开更多
关键词 Oil REFINING industry Industrial UPGRADING BELT and Road COOPERATIVE DEVELOPMENT
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Experimental Analysis and Optimization of Timing Belt Guide Plate Material on Engine Operational Friction Loss
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作者 徐宏昌 袁志远 潘浩星 《上海交通大学学报:英文版》 EI 2019年第4期445-450,共6页
We focus on the friction loss measurement and reduction of the timing belt guide plates of a fourcylinder gasoline engine. To minimize the friction loss caused by the dynamic friction of the guide plates during timing... We focus on the friction loss measurement and reduction of the timing belt guide plates of a fourcylinder gasoline engine. To minimize the friction loss caused by the dynamic friction of the guide plates during timing belt motion and improve the efficiency of the internal combustion engine(ICE), we adopt four different plastic materials in fabricating the guide plates. With controlled engine boundary conditions and operational modes, an AVL electric dynamometer is used to measure the output of the engine. The results indicate that selecting polytetrafluoroethylene(PTFE) as the additive in fabricating the guide plates can effectively reduce the friction loss, so that the output torque and output power of the engine can be improved, thus reducing fuel consumptions. This work also has positive impact on the efficiency optimization of similar ICEs. 展开更多
关键词 FRICTION LOSS optimization TIMING BELT guide plate MOTOR driven measurement polytetrafluoroethylene (PTFE) materials
Starting a New Journey for High- Quality Development of the Belt and Road
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作者 Wang Yi 《求是:英文版》 2019年第2期48-56,共9页
The Second Belt and Road Forum for International Cooperation (BRF) was held from April 25 to 27, 2019 in Beijing. This was the most important diplomatic event held by China this year, which also marks the 70th anniver... The Second Belt and Road Forum for International Cooperation (BRF) was held from April 25 to 27, 2019 in Beijing. This was the most important diplomatic event held by China this year, which also marks the 70th anniversary of the founding of the People’s Republic of China (PRC). President Xi Jinping attended the opening ceremony of the BRF to deliver a keynote speech, chaired the Leaders’ Roundtable, held a series of diplomatic events, and presented the outcomes of the forum to Chinese and foreign media outlets. 展开更多
关键词 NEW JOURNEY HIGH-QUALITY Development BELT and ROAD
Trends of Internationalization in China’s Higher Education: Opportunities and Challenges 预览
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作者 Phylis Lan Lin 《美中教育评论:B》 2019年第1期1-12,共12页
Quality of higher education is a key to national economic growth and social development. Internationalization of higher education has been one of the major national trends and governmental agendas in many emerging cou... Quality of higher education is a key to national economic growth and social development. Internationalization of higher education has been one of the major national trends and governmental agendas in many emerging countries in the past few years. International education is transformative. With globalization and the development of the Internet of Things, internationalization of higher education has become an important national goal in China. The purpose of this paper is threefold:(a) to describe a brief history of internationalization of higher education in China;(b) to conceptualize the dualism of internationalization of higher education, the role of the government, and China’s 13th Five Year Plan in China;and (c) to delineate the challenges and opportunities of international collaborations, especially in the dual-degree model under international partnership programs between China and the United States. 展开更多
关键词 INTERNATIONALIZATION higher EDUCATION China dual degree ONE belt ONE road University of Indianapolis INTERNATIONAL PARTNERSHIP INTERNATIONAL EDUCATION
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Review 2018 预览
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作者 Lily Wong 《中国对外贸易:英文版》 2019年第1期8-9,共2页
2018 has passed before we even knew it.At the juncture to celebrating the 40th anniversary of reform and opening-up,China has made remarkable achievements in various fields—In just five years,the Belt and Road Initia... 2018 has passed before we even knew it.At the juncture to celebrating the 40th anniversary of reform and opening-up,China has made remarkable achievements in various fields—In just five years,the Belt and Road Initiative has grown from a concept to a key platform for building a community with a shared future for humanity. 展开更多
关键词 REFORM and OPENING up the BELT and ROAD REVIEW
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Where the Market Rules
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《北京周报:英文版》 2019年第13期22-23,共2页
Since the Belt and Road Initiative was proposed in 2013,152 countries and international organizations have signed cooperation agreements with China under its framework. Members of the 13th Chinese People's Politic... Since the Belt and Road Initiative was proposed in 2013,152 countries and international organizations have signed cooperation agreements with China under its framework. Members of the 13th Chinese People's Political Consultative Conferenee National Committee commented on its progress during their annual session in Beijing in March. Edited excerpts of their views follow. 展开更多
关键词 WHERE MARKET RULES BELT and ROAD INITIATIVE
Dynamic analysis of spatial convergence of green total factor productivity in China's primary provinces along its Belt and Road Initiative 预览
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作者 Zuankuo Liu Li Xin 《中国人口资源与环境:英文版》 2019年第2期101-112,共12页
This paper focuses on China's primary provinces along its Belt and Road Initiative,measures and analyses the provincial green total factor productivity (GTFP) development by GML index based on SBM directional dist... This paper focuses on China's primary provinces along its Belt and Road Initiative,measures and analyses the provincial green total factor productivity (GTFP) development by GML index based on SBM directional distance function,discusses the temporal evolution characteristics of spatial convergence of the provincial GTFP under multiple spatial weight matrices,and estimates the net effect of China's Belt and Road Initiative on the development gap of provincial GTFP by regression discontinuity.The research shows that the provincial GTFP is generally good while the internal gap is relatively large.There is spatial absolute βconvergence and condition βconvergence in provincial GTFP,and the convergence speed has been signifcantly accelerated since the construction of China's Belt and Road Initiative.The current low economy level and infrastructure allocation efficiency of primary provinces restrict the GTFP development,while government expenditure has promoted the GTFP development,trade between provinces and countries along China's Belt and Road Initiative is negative to GTFP.China's Belt and Road Initiative has significantly narrowed the gap of provincial GTFP development with the net effect of-0.016. 展开更多
关键词 China's BELT and ROAD INITIATIVE GML index based on the SBM directional distance function green total factor productivity SPATIAL CONVERGENCE regression DISCONTINUITY
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Fifth Anniversary of the Belt and Road Initiative 预览
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作者 Lily Wong 《中国对外贸易:英文版》 2019年第1期12-13,共2页
In September 2013,Chinese president Xi Jinping made the suggestion for the first time to build an“Economic Belt along the Silk Road”when he visited Kazakhstan.In October that year,President Xi Jinping proposed the c... In September 2013,Chinese president Xi Jinping made the suggestion for the first time to build an“Economic Belt along the Silk Road”when he visited Kazakhstan.In October that year,President Xi Jinping proposed the construction of a maritime silk road for the 21st Century.The proposal of the Belt and Road Initiative is China’s solution to the advancement of mutual development of the world. 展开更多
关键词 the BELT and ROAD VISIT kazakhstan Xi Jinping
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An Analysis on the Reform of the College English Teaching Based on “The Belt and Road”Initiative 预览
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作者 杨金燕 《海外英语》 2019年第9期251-252,共2页
Under the new normal economy of China,“the Belt and Road ”brings challenges as well as opportunities.It also brings challenges for college English teaching. We should analyze the problems of college English teaching... Under the new normal economy of China,“the Belt and Road ”brings challenges as well as opportunities.It also brings challenges for college English teaching. We should analyze the problems of college English teaching under“the Belt and Road”to deepen the reform of the college English teaching and cultivate more high-quality talents. 展开更多
关键词 “The BELT and Road” COLLEGE English TEACHING
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浅析传统服饰中的扣合部件在现代服饰的设计改良应用 预览
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作者 余戡平 卢兰 《染整技术》 CAS 2019年第2期7-14,共8页
服饰的扣合部件是服饰设计的重要细节,是穿解衣服、连接衣片的重要组成部分。现代服装设计几乎摒弃了传统服饰扣合部件的精髓,对宣扬我国传统服饰的文化魅力不利。为了解决这个问题,分析传统系结方式在当代服装中的改良应用,挖掘中式改... 服饰的扣合部件是服饰设计的重要细节,是穿解衣服、连接衣片的重要组成部分。现代服装设计几乎摒弃了传统服饰扣合部件的精髓,对宣扬我国传统服饰的文化魅力不利。为了解决这个问题,分析传统系结方式在当代服装中的改良应用,挖掘中式改良扣合方式在现代服饰中的应用,促进传统文化的发展。 展开更多
关键词 扣合部件 腰带 结扣 带钩 纽扣
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FOR THE PUBLIC GOOD Belt and Road Initiative delivers tangible benefits
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作者 Li Ziguo 《北京周报:英文版》 2019年第16期12-15,共4页
When the Belt and Road Initiative was first put forward in 2013, few might have imagined that it would encompass more than 150 countries and international organizations in collaborative projects in a matter of years.
关键词 FOR THE PUBLIC GOOD BELT and ROAD INITIATIVE delivers tangible BENEFITS
Belt and Road Still A Hit 预览
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《中国对外贸易:英文版》 2019年第2期12-13,共2页
As the Belt and Road Initiative is transitioning from the phase of drawing the framework to the phase of full implementation, representatives at the Two Sessions tend to focus more on the areas of operation and implem... As the Belt and Road Initiative is transitioning from the phase of drawing the framework to the phase of full implementation, representatives at the Two Sessions tend to focus more on the areas of operation and implementation.Foreign Minister Wang Yi shared with the audience the achievements of the Belt and Road Initiative. The Maldives has established the first cross-sea bridge, Belarus has its own car manufacturing industry. 展开更多
关键词 BELT ROAD STILL A HIT
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DIGITAL ROUTE, CLOSER TIES Cross-border e-commerce platform boosts trade between Belt and Road participants
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作者 Li Xiaoyang 《北京周报:英文版》 2019年第16期18-19,共2页
For the Istan bul-based Omer Atici, a new door of opportunities opened when he received his first order on DHgate.com, a Beijing-headquartered e-commerce platform for business-to-business (B2B) sales, shortly after he... For the Istan bul-based Omer Atici, a new door of opportunities opened when he received his first order on DHgate.com, a Beijing-headquartered e-commerce platform for business-to-business (B2B) sales, shortly after he started selling electric devices there in December 2018. Atici, among the first batch of Turkish sellers to join the online wholesale marketplace, became the first overseas seller to receive an order even without an advertising campaign. 展开更多
关键词 DIGITAL ROUTE CLOSER TIES BELT and ROAD
KEY LINK OF "CONNECTIVITY": ADVANCING THE SILK ROAD ECONOMIC BELT IN CENTRAL ASIA 预览
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作者 ZENG XIANGHONG 《当代世界:英文版》 2019年第2期28-32,共5页
Belt and Road Initiative and its implementation globally provide a non-alternative approach for the Central Asian countries to achieve regional integration and build up momentum within the Central Asia for sustaining ... Belt and Road Initiative and its implementation globally provide a non-alternative approach for the Central Asian countries to achieve regional integration and build up momentum within the Central Asia for sustaining its integration process. The Initiative opens up an opportunity for the Central Asian countries to further identify their regional advantages and development priorities and facilitate the region’s integration into the international community. In the past five years, the Central Asian countries have actively participated in advancing the Belt and Road Initiative, making remarkable achievements and encountering challenges as well. 展开更多
关键词 BELT and ROAD the Central ASIA ACHIEVEMENTS and CHALLENGES
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