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Search Results: 1 - 10 of 12677 matches for " Zhongxin Luo "
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Path Selection of Multimodal Transport Based on Multi-Objective Mixed Integer Programming  [PDF]
Zhongxin Luo
Journal of Transportation Technologies (JTTs) , 2019, DOI: 10.4236/jtts.2019.94029
Abstract: Based on “One Belt and One Road”, this paper studies the path selection of multimodal transport by using the method of multi-objective mixed integer programming. Therefore, this paper studies the factors of transportation time, transportation cost and transportation safety performance, and establishes a mathematical model. In addition, the method of multi-objective mixed integer programming is used to comprehensively consider the different emphasis and differences of customers on cargo transportation. Then we use planning tools of Microsoft Excel to solve path selection and to determine whether the chosen path is economical and reliable. Finally, a relatively complex road network is built as an example to verify the accuracy of this planning method.
A Study on Establishing Low-Carbon Auditing System in China  [PDF]
Wei Zhang, Zhongxin Wu
Low Carbon Economy (LCE) , 2012, DOI: 10.4236/lce.2012.32005
Abstract: This paper establishes the framework of low-carbon auditing based on the current environment of China which is a developing country. A comprehensive system of low-carbon auditing should be composed by low carbon related laws compliance auditing, low-carbon conduct auditing and performance auditing. The functional paths of low-carbon auditing include at least four things: building a comprehensive low-carbon auditing system, establishing sets of indicators, cultivating talents with diverse carbon related knowledge and providing policies step by step.
Cognitive Relevance Involved in Verbal Communication: A Perspective of the Personal Experience Theory
Zhongxin Dai
Theory and Practice in Language Studies , 2011, DOI: 10.4304/tpls.1.8.975-979
Abstract: This paper is intended to interpret, from a perspective of the Personal Experience (PE) Theory, the cognition and relevance involved in verbal communication. The process of verbal communication, based upon personal experience (PE), consists of two sub-processes that are heterogeneous in nature: the sub-process of the formation of the communicative notion (CN), which is non-linguistic in nature, and the sub-process of verbal expression of the CN, which is linguistic in nature. The speaker’s PE enables him to turn an external context into an internal context, and develop a CN and an utterance image, which is then verbally expressed. In contrast, the listener’s PE enables him to intelligently associate the verbal form with its meaning, form an utterance image, associate the image with his conceived context, and finally infer the speaker’s CN. This theory of cognitive relevance involved in verbal communication from the perspective of PE Theory enjoys considerable advantages of powerful interpretation over other theories.
宽幅摊铺机螺旋输送机理与抗离析试验研究
Study on the mechanism of screw distributor and anti-segregation test of wider paver

徐中新,罗清云,胡永彪,郑铁民
XU Zhongxin
, LUO Qingyun, HU Yongbiao, ZHENG Tiemin

- , 2018,
Abstract: 为准确掌握沥青混合料在宽幅摊铺机螺旋布料器内的离析原因和分布规律,基于物料在螺旋处的运动学特性,结合某一型号宽幅摊铺机,对螺旋作用下物料颗粒的轴向速度、圆周速度与螺旋叶片直径、螺距之间的关系进行分析,同时分析螺旋布料器吊臂处的离析机理以及物料填充系数对混合料均匀性的影响,并在实体工程上进行足尺试验。理论分析表明:螺旋布料器的结构参数和运行参数会对沥青混合料在螺旋内的物料均匀性造成影响;随着物料到螺旋轴距离的增大,轴向速度逐渐增加,圆周速度先增大后减小;随着螺距的增大,圆周速度和轴向速度均增大,但改变螺距对混合料速度的影响程度小于改变螺旋半径;物料填充系数越大,混合料的摊铺均匀性越好,并可以改善宽幅摊铺路面两侧的离析现象;通过优化吊臂形状以及增加过度叶片可以改善混合料通过吊臂的均匀性。现场试验结果与理论分析结果一致。
In order to accurately find out segregation reasons and segregation distribution regularities of asphalt mixture in screw conveyor of width paver, based on the kinetic characteristics of mixture, the relationship between the particles’ axial velocity, circumferential velocity and the diameter, pitch under the action of screw conveyor was analyzed combined with a wide paver. Meanwhile, the segregation mechanism of the screw arm and the effect of material filling coefficient on the mixture uniformity were analyzed, and the full scale test was carried out on the solid engineering. The theoretical analysis shows that the structural parameters and operating parameters of the screw conveyor will affect the uniformity of the asphalt mixture. As the distance from the material to the screw axis increases, the axial velocity increases and the peripheral velocity increases first and then decreases. And the peripheral speed and axial velocity increase with the increase of the pitch, but the effect of changing the pitch on the speed of the mixture is less than that of changing the spiral radius. The bigger the material filling factor, the better the paving uniformity of the mixture, and it can also improve the segregation phenomenon on both sides of the width pavement. The uniformity of the mixture through the boom can be improved by optimizing the screw arm shape and increasing the excess blade. Field test results are consistent with theoretical analysis
Value of ecosystem services in China
Zhongxin Chen,Xinshi Zhang
Chinese Science Bulletin , 2000, DOI: 10.1007/BF02886190
Abstract: The function and services are the important components of the life-support system in the planet, as well as the basic elements for sustainable development of environment and society. It is a must to evaluate it for incorporating it with the social-economic system. It is also an important approach to draw the public attention on the environmental and ecosystem conservation. In this study, the ecosystem function and services in China were estimated by employing the classification and economic parameters from Costanza et al. The type and area of terrestrial ecosystems were extracted from Vegetation Map of China (1:4 000 OOO), and then the distribution map of ecosystem services of China was drawn. According to our calculation, the total value of ecosystem services in China is 77 834.48×108 RMB yuan per annum. The value for terrestrial ecosystem is 56 098.46×108 yuan per annum, and that for marine ecosystem is 21 736.02×108 yuan per annum. The value of ecosystem services in China is 1.73 times bigger than GDP in 1994. The value for forest ecosystem services is 15 433.98×8 yuan per annum, which is 27.51% of the total annual ecosystem services in China. Although wetland is little in area, its ecosystem service value is huge, which is 26 736.9×8 yuan per annum. The value for grassland ecosystem is 8 697.68×8 yuan per annum. Coastal ecosystem service is 12 223.04×8 yuan per annum. Overall, the ecosystem service in China contributes 2.71% to that of our planet. The estimation method employed in this study was a conservative one, and should be improved in the future studies.
Effects of Radix puerariae (Ge Gen) Water Extract on Exercise-Induced Fatigue in Mice
ZhongXin Xu,Chunfang Wang
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.1722.1726
Abstract: To investigate the effects of Radix Puerariae water Extract (RPE) on exercise-induced fatigue, 96 mice were randomly divided into four groups: Normal Control (NC), Low dose RPE Treated (LRT), Middle dose RPE Treated (MRT) and High dose RPE Treated (HRT) groups. The mice in the treated groups received RPE (2, 4 and 8 g kg-1, ig) and the mice in the normal control group received drinking water ig for 4 weeks. The exhaustive swimming time, Blood Lactic Acid (BLA), Blood Urea Nitrogen (BUN), Hemoglobin (Hb) and liver glycogen were determined after swimming test. The results indicated that RPE had significant anti-fatigue effects on mice. It extended the exhaustive swimming time of mice, increased the Hb and liver glycogen contents and decreased BLA and BUN contents.
On the Internationalization of Higher Education Institutions in China
Jun Liu,Zhongxin Dai
Higher Education Studies , 2012, DOI: 10.5539/hes.v2n1p60
Abstract: This paper discusses issues concerning the internalization of higher education institutions in China. Internationalization of a university involves the internationalization of the curriculum, the administration and management, collaborative academic research, and exchange of students and staff.
Study on Practicality of Tax Law Course in Accounting Major
Lixia Wang,Zhongxin Chang
Higher Education Studies , 2011, DOI: 10.5539/hes.v1n2p61
Abstract: Accounting staff play a more and more important role in enterprises and the ability to handle tax related business is one of the necessary abilities of accounting staff. At present, some problems exist in system setting, content teaching, textbook construction, teaching method and so on of tax law course in institutions of higher learning. The society has proposed new subjects in higher education of tax law course in accounting major. How to cultivate application based accounting staff with solid theoretical basis and strong capacity in practical operation is an issue that needs to be urgently resolved by higher education practitioners.
The Impact of the Advent of English in Primary Schools on the Development of College English in China
Jun Liu,Zhongxin Dai
Higher Education Studies , 2011, DOI: 10.5539/hes.v1n1p105
Abstract: This article discusses the impact of the advent of primary English on the development of College English in China. The advent of English in primary schools as a teaching subject has brought about a downward shift of focus of the English education system in China. Basic English education will be accomplished in primary and secondary schools. The part of basic English education conventionally assumed by college English will be gone and in its place there will be various content-based English courses, bilingual courses and courses taught entirely in English on different disciplines relevant to the majors of college students.
The Formation and Development of Chinese EFL Learners’ English Mental Lexicon
Zhongxin Dai,Kemin Wang
English Language Teaching , 2013, DOI: 10.5539/elt.v6n3p51
Abstract: This paper investigated some dominant features and influential factors in the formation and developmental process of the English mental lexicon of Chinese EFL learners. Data were collected by means of word tests. The result of the data analysis shows: (1) Chinese EFL learners acquire very little of the overall word knowledge; and (2) aspects of the multifaceted word knowledge increase with the improvement of their language proficiency.
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