共查询到20条相似文献，搜索用时 15 毫秒
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The research tries to deplore the two translation models which are Jerome Model and Horace model with the translation of Chinese word yisi,and then concludes that the two kinds of models should be used in different situation after taking other elements just like context,culture,and the innate discrepancy of way of expression in Chinese and English into concern. 相似文献
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ＭａｔｈｅｍａｔｉｃａｌＭｏｄｅｌｏｆＷｅｉｇｈｔｉｎＥｖａｌｕａｔｉｏｎＳｙｓｔｅｍＳｕｎＬｕ（孙璐）ＤｅｎｇＸｕｅｊｕｎ（邓学钧）（ＴｒａｎｓｐｏｒｔａｔｉｏｎＣｏｌｅｇｅ，ＳｏｕｔｈｅａｓｔＵｎｉｖｅｒｓｉｔｙ，Ｎａｎｊｉｎｇ２１００１８）Ａ... 相似文献
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Based on an analysis of the relationship between electronic business (EB) and collaborative product commerce (CPC), the conception of CPC is illustrated rigorously. Development and classification of manufacturing systems are summarized. System features and goals on each stage of a manufacturing system are investigated. In particular, goals and feature characteristics of CPC manufacturing system are discussed. A figure of relationship between the feature and goal ofa CPC manufacturing system is given. A model of CPC manufacturing systems based on a set of five elements including goal, feature, topology, view, and process is proposed. Furthermore, four models of 3D function analysis for PFV, PTV, PTG, and PFG are established. 相似文献
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An equation of atomization quantity from energy dissipation by hydraulic jump was derived from the dimensional analysis. By applying Gauss diffusion equation, the spray diffusion rule in valley was studied under the condition of continuous linear source and random wind direction. By considering the spray-rain switching process, coagulation, condensation and evaporation of droplets, the air temperature, air relative humidity,spray density and the rainfall intensity in the lower reaches of the linear source were calculated. The 3-D numerical simulation fitted well with prototype monitoring. Finally, the prediction of atomization influence on environments for Xiangjiaba Hydropower Station was conducted. 相似文献
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Data envelopment analysis (DEA) has become a standard non-parametric approach to productivity analysis, especially to relative efficiency analysis of decision making units (DMUs). Extended to the prediction field, it can solve the prediction problem with multiple inputs and outputs which can not be solved easily by the regression analysis method. But the traditional DEA models can not solve the problem with undesirable outputs,so in this paper the inherent relationship between goal programming and the DEA method based on the relationship between multiple goal programming and goal programming is explored, and a mixed DEA model which can make all factors of inputs and undesirable outputs decrease in different proportions is built. And at the same time,all the factors of desirable outputs increase in different proportions. 相似文献
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Based on the cylindrical cavity expansion theory, a plastic-damage-elastic model is proposed for the penetration problem of geo-material. In the model, the unified strength criterion (Yu, 1991) is adopted as the failure criterion. The distributions of the radial stress and velocity are analyzed. According to the Newton's second law, a series results of the final penetration depth and the impedance load are obtained to different parameter b, when a rigid projectile normally impacts and penetrates a semi-infinite geo-material target with an impact velocity of 300-1200 m/s. By comparing with the test data available, it appears that the method can be used in analyzing the final depth and the impedance load of a rigid projectile penetrating into a semi-infinite target with different impact velocities. 相似文献
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Aimed at attaining to an integrated and effective pattern to guide the port design process, this paper pats forward a new conception of feature solution, which is based on the parameterized feature modeling. With this solution, the overall port pre-design process can be conducted in a virtual pattern. Moreover, to evaluate the advantages of the new design pattern, an application of port system has been involved in this paper; and in the process of application a computational fluid dynamic analysis is concerned. An ideal effect of cleanness, high efficiency and high precision has been achieved. 相似文献
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Güner Tural Ali R?za Akdeniz Nedim Alev 《Journal of Science Education and Technology》2010,19(5):470-488
Weight is one of the basic concepts of physics. Its gravitational definition accommodates difficulties for students to understand
the state of weightlessness. The aim of this study is to investigate the effect of materials based on 5E teaching model and
related to weightlessness on science student teachers’ learning. The sample of the study was 9 volunteer student teachers
who were in their first grade in Science Teaching Program in Fatih Faculty of Education, Karadeniz Technical University. Both
qualitative and quantitative data were gathered to find answers to the research questions. Findings revealed that all physics
textbooks reviewed gave gravitational definition of weight. Also the concept of weightlessness hasn’t been covered in high
school and some university textbooks. It was determined that before the implementation student teachers had non-scientific
explanations about weightlessness. The implementation of the 5E teaching model and materials developed are effective on learning
the weightlessness. It is suggested that similar applications can also be used in other physics subjects or in other fields
of science. 相似文献
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Kristin L. Gunckel 《Journal of Science Teacher Education》2011,22(1):79-100
This paper reports on one preservice teacher’s use of the Inquiry-Application Instructional Model (I-AIM) to plan and teach
an instructional sequence on photosynthesis to 5th-grade students. Analysis of the preservice teacher’s planned and enacted
instructional sequences and interviews shows that the preservice teacher was successful in leveraging the conceptual change
but not the inquiry aspects of the I-AIM. The mediators of this preservice teacher’s use of the I-AIM included her approach
to teaching science, the curriculum materials she had available, and the meanings she made of the underlying frameworks. Understanding
the mediators of preservice teachers’ uses of instructional models can inform teacher educators’ approaches to supporting
preservice teachers in using instructional models for organizing science instructional sequences. 相似文献
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M. C. K. Aghadiuno 《Research in Science & Technological Education》2013,31(2):123-133
Abstract A causal model is proposed in order to explain secondary students’ achievement in chemistry; the seven predictor variables used in the explanation are: students’ attitude towards chemistry, understanding of science, scientific attitude, traditional cosmological world‐view, cognitive style, teachers’ attitude towards the teaching of chemistry and understanding of science. Some 460 students chosen by means of stratified cluster sampling and their 25 teachers make up the student and teacher samples, respectively. The numerical values of all the variables are obtained and their intercorrelations computed. Path analysis procedure is applied to the data to estimate the coefficients of the structural equations of the proposed model. The results of the analysis indicate that the hypothesised model is tenable. The seven predictors directly account for 21?6% of the variance in the criterion; their indirect effect is 8?4%. The implications of the findings for chemistry instruction, teacher education and curriculum development are discussed. 相似文献
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Yufeng Wu Guoying Qian 《美中教育评论》2005,2(1):33-39
Middle school subjects of 13-2lyears （from 4 nationalities） were used for studying the relationship between progressive cognition and personality characteristics by Raven＇s Standard Progressive Matrices and Eysenk＇s Personality Questionnaire. The results showed： （1） the correlation and stepwise regression were completely identical： P score was negatively related to progressive cognition; E score was positively related to progressive cognition. （2） With the personality characteristics and the personal variables as independent variables, the stepwise regression indicated： E score was the most predictors of progressive cognition, and then was nation, culture degree of mother and father, P, age, sex, mathematics and language achievements. 相似文献
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Like many river basins in China, water resources in the Fudong Pai River are almost fully allocated. This paper seeks to assess and evaluate water resource problems using water evaluation and planning (WEAP) model via its application to Hengshui Basin of Fudong Pai River. This model allows the simulation and analysis of various water allocation scenarios and, above all, scenarios of users' behavior. Water demand management is one of the options discussed in detail. Simulations are proposed for diverse climatic situations from dry years to normal years and results are discussed. Within the limits of data availability, it appears that most water users are not able to meet all their requirements from the river, and that even the ecological reserve will not be fully met during certain years. But the adoption of water demand management procedures offers opportunities for remedying this situation during normal hydrological years. However, it appears that demand management alone will not suffice during dry years. Nevertheless, the ease of use of the model and its user-friendly interfaces make it particularly useful for discussions and dialogue on water resources management among stakeholders. 相似文献
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Mathematicalmodelsandsimulationsofemulsionpolymerizationhavebeenstudiedforseveraldecades .Re cently ,averycomprehensivereviewofithasbeenpub lished[1] .Infact,sincethephysicalmodelofemulsionpolymerizationwasfirstproposedbyHarkins[2— 4 ] inlate194 0s ,manyscientistsandengineersdevotedtheiratten tiontothequantitativeresearchofemulsionpolymeriza tion .ThemostimportantandfamoustheorywastheclassicaltheoryestablishedbySmithandEwart[5— 7] .Onthebasisofaseriesofreasonablysimplifiedassumptions ,Smit… 相似文献
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To sharpen the imaging of structures, it is vital to develop a convenient and efficient quantitative algorithm of the optical coherence tomography (OCT) sampling. In this paper a new Monte Carlo model is set up and how light propagates in bio-tissue is analyzed in virtue of mathematics and physics equations. The relations,in which light intensity of Class I and Class 2 light with different wavelengths changes with their permeation depth ,and in which Class I light intensity (signal light intensity) changes with the probing depth, and in which angularly resolved diffuse reflectance and diffuse transmittance change with the exiting angle, are studied. The results show that Monte Carlo simulation results are consistent with the theory data. 相似文献
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Based on Hertz contact theory, a method to determine the parameters of Kelvin impact model for seismic pounding analysis of bridges is proposed. The impact stiffness of Kelvin model is determined by the ratio of maximum impact force to maximum contact deformation, which is calculated based on Hertz contact theory with considering the vibration effect. The restitution coefficient which has great influence on the damping coefficient of Kelvin impact model is investigated by numerical analysis. Numerical results indicate that the impact stiffness of Kelvin impact model increases with the increment of the Hertz contact stiffness, approaching velocity or the length ratio of short to long girders. Vibration effect has remarkable influence on the impact stiffness and cannot be neglected. The restitution coefficient decreases when approaching velocity increases or the length ratio of short girder to long girder decreasing. The practical ranges of impact stiffness and restitution coefficient are obtained as 3×108-6×108 N/m and 0.6-0.95 respectively. 相似文献