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1.
The evaluation of the seismic stability of an expanded municipal solid waste （MSW） landfill is very important in seismic prone zones. In this paper, the pseudo-dynamic method was used to calculate the average safety factor for the expanded landfill with a trapezoidal berm based on under-berm failure conditions. Furthermore, the effects of the variation of parameters such as the amplification factor, seismic coefficient, height of berm, angle of back slope of berm, and depth of waste mass at the back slope on the seismic stability of the landfill were studied. The results indicated that the influences of the vertical seismic coefficient, height of berm, and angle of the back slope of the berm on the seismic stability of the landfill are weakened as the amplification factor increases, but the influence of the horizontal seismic coefficient on the seismic stability of the landfill is strengthened. On the other hand, a certain ratio of the height of the waste mass above the back slope to the depth of waste mass at the back slope, or the reasonable consideration of the magnitude of the amplification factor will be conducive to the seismic design of the landfill. In addition, the results obtained by the pseudo-static and pseudo-dynamic methods were compared. 相似文献
2.
This study describes the application of a new product concurrent design methodologies in the context in the education of industrial design. The use of the sketch has been utilized many times as a tool of creative expression especially in the conceptual design stage, in an intuitive way and a little out of the context of the reality needs that the design should be attended. This methodology systematizes and guides the process of sketching by means of a conceptual model and a geometric model toward a feasible solution, complementing the role of the sketch in the phase of a product conceptual design. The model describes its operating principles, as well as the phases of implementation in the context of teaching the industrial design illustrated with projects carried out in the workshop of conceptual design of the University Technical College of Valencia and University of the Bio-Bio, Chile. Finally, we discuss the implementation of the systemic models, their relation with the optimisation of the sketching process in the conceptual design stage, and their implications in the educational context. 相似文献
3.
The authors of this paper compared the views of Slovenian and Portuguese preschool teachers about the importance of play and movement for the preschool children. In the paper, they focused on the question： Does physical activity of preschool teachers （spontaneous or planned） impact the planning and implementation of movement activities in their kindergarten group？ They also analyzed the influence of subjective theories on the planning of movement activities and the realization of the curriculum objectives in the field of movement. Most of the preschool teachers in Slovenia and Portugal give priority to natural forms of movement in nature and play, allowing the movement of the fingers, palms, and hands. Research has shown a link between physical activity of preschool teachers and their views on the importance of the implementation of the movement activities of preschool children. The authors also noted that the quality of the implementation of the education process in kindergartens in the area of movement activities depends on their subjective theories to a great extent and on the level of professional competence referred to the discussed topic. 相似文献
4.
Scaling properties of Navier-Stokes turbulence 总被引：1，自引：0，他引：1
Zhao-cun Liu 《浙江大学学报(A卷英文版)》2009,10(3):392-397
5.
According to the customs,by the end of 2011,the whole value of Chinese foreign trade is two thousand nine hundred and ninety four billion dollars,by the end of 2009,5 percents of the accounts of Chinese foreign trade with a value of fifty hundred billion dollars are unpaid.Most of the financial loss are caused by wrong translation of documents.The letter of credit is the most important way of payment in the international trade,so great attention should be paid to the translation of this type of document.Until now,the study against the translation of the letter of credit is scant.This paper will apply the skopos theory put forward by Hans Vermeer and developed in Germany in the late 1970s to guide the translation practice of the letter of credit. 相似文献
6.
The Great Gatsby is considered the finest achievement of Fitzgerald’s literary career. The novel is successful for its narrative skill, graceful and delicate prose style, and especially, the employment of symbolism which contributes most to the depth and broadness of its theme. There is an abundance of images which are full of symbolic meaning through the whole story, among which the most important one is unquestionably the employment of "the green light". This paper, through analyzing the skillful employment of symbolism in the term of "the green light" in the novel, discusses the deep connotation that is imparted by the novelist and explains the decisive role of the symbolism of this term in the novel in shaping the figures, developing the plot of the story, and deepening the themes of the work. 相似文献
7.
《内江师范学院学报》1993,(4)
It is demonstrated that if the vector sum of the external forces and the total external torque are functions of all the positions and the velocities of the particles, the internal forces will affect indirectly the linear momentum and the angular momentum of a system of the particles through the and. In order to ensure that the internal forces have no effect on the and of the system, the external forces must be restricted to a linear function of and. Some examples which show that internal forces do affect the motion of the center of mass and the angular momentum of the system were discussed. 相似文献
8.
From the awakening and the development of feminism, to the formation of the Cinderella complex, much attention has been paid. As we know the reason of the popularity of Cinderella complex is patriarchal rule forces that reigns the world, the only way to remove this psychological problem is the reconstruction of the concept of gender relationship. This essay tries to find some reasons for the popularity of the Cinderella complex by some analysis of the developing of Cinderella mode and Cinderella complex, thus giving some measures. 相似文献
9.
This paper deals with the internal force and the deformation matrixes, both of which can be used to analyze the topological relationship of a structure. Based on the reciprocal theorem, the relationship between the two matrixes is established, which greatly simplifies the computation of the internal force matrix. According to the characteristics of the internal force matrix, the transfer law of the matrix itself（due to the removal of components） is established based on the principle of linear superposition. With the relation of the two matrixes, the transfer law of the deformation matrix is also obtained. The transfer law illuminates the change regularity of internal force or deformation of the remnant structure when certain members are cut offone after another. The results of numerical examples show that the proposed methods are correct, reliable and effective. 相似文献
10.
Bin Rong Rui Liu Zhenyu Li Changxi Feng Guangchao You Fafitis Apostolos 《天津大学学报(英文版)》2017,23(3):258-266
Finite element analysis and parametric studies were performed to investigate the flexural capacity of the panel zone of diaphragm-through joints between concretefilled square steel tubular columns and H-shaped steel beams.Through the comparisons of failure modes,load–displacement curves,and bearing capacity,it was found that the flexural capacity of the panel zone of diaphragmthrough joints was determined by the tensile action and influence of the web of H-shaped steel beams,and the axial load should be taken into account.The steel tube and the diaphragm were the major parts of the joint that resisted the bending moment.The contribution of in-filled concrete had little influence on the flexural capacity of the panel zone of the joint and could be neglected.According to the results of these numerical studies,a formula that considered the influence of the web of H-shaped steel beams and the axial load was developed based on the yield lines in the diaphragm and the steel tube.The results of the proposed formula were in good agreement with the numerical data of this investigation. 相似文献
11.
Joanna Dai 《中学生百科》2006,(35)
8the past participle of misunderstand11the past participle of deal12the past participle of fight17the past participle of fly18the past participle of catch20the past participle of ride21the past participle of drive22the past participle of chooseDOWN1the past participle of wake2the past participle of cost4the past participle of sweep6the past participle of hide7the past participle of spill9the past participle of spoil10the past participle of shake13the past participle of forgive14the past partic… 相似文献
12.
The extractive reaction process of oxygen-working solution-water three-phase system for the production of hydrogen peroxide by the anthraquinone method was investigated in a sieve plate column of 50 mm in internal diameter. The oxidation reaction of anthrahydroquinone in the working solution with oxygen and the extraction of hydrogen peroxide from the working solution into aqueous phase occurred simultaneously in the countercurrent mode. The agitating effect caused by gaseous phase made the droplets of the dispersed phase become smaller, thus, increasing the liquid-liquid interfacial contact areas and resulting in the improvement of the mass transfer velocity. Results showed that the gas-agitation had a beneficial effect on the extraction of hydrogen peroxide from the working solution into the aqueous phase： the concentration of hydrogen peroxide in the raffinate decreased with the increase of the gaseous superficial velocities： and the concentration of H2O2 in the raffinate increased with the increase of the dispersed phase superficial velocity at the same superficial velocity of the gaseous phase. In the G-L-L extractive reaction process, with the increase of the gaseous superficial velocities, both the conversion of the anthrahydroquinone oxidation and the extraction efficiency of hydrogen peroxide first increased significantly, then increased gradually. 相似文献
13.
Based on analysis of the discharging course in double grid air counter(DGAC),the dischargin model is built up by applying the conception of average ionizaing free path.An effective algorithm is presented for the working voltage of DGAC using this model.The working voltage is nearly related to the geometric parameters of DGAC,the sensitivity of the circuitry and the number of discharges,computing results confirm that the working voltage increases with the ratio of the radius of the anode to that of the cathode.The number of discharges follows the similar rule. 相似文献
14.
This paper deals with the problem of the instability regions of a free-free flexible jointed bipartite beam under the follower and transversal forces as a realistic simulation of a two-stage aerospace structure. The aim of this study is to analyze the effects of the characteristics of a flexible joint on the beam instability to use maximum bearable propulsion force. A parametric study is conducted to investigate the effects of the stiffness and the location of the joint on the critical follower force by the Ritz method and the Newmark method, then to research the vibrational properties of the structure. It has been shown that the nature of instability is quite unpredictable and dependent on the stiffness and the location of the joint. The increase of the follower force or the transversal force will increase the vibration of the model and consequently cause a destructive phenomenon in the control system of the aerospace structure. Furthermore, this paper introduces a new concept of the parametric approach to analyze the characteristics effects of a flexible two-stage aerospace structure joint design. 相似文献
15.
This paper proposes a new numerical simulation method for analyzing the parametric vibration of stay cables based on the theory of nonlinear dynamic response of structures under the asynchronous support excitation. The effects of important parameters related to parametric vibration of cables, i.e., characteristics of structure, excitation frequency, excitation amplitude, damping effect of the air and the viscous damping coefficient of the cables, were investigated by using the proposed method for the cables with significant length difference as examples. The analysis results show that nonlinear finite element method is a powerful technique in analyzing the parametric vibration of cables, the behavior of parametric vibration of the two cables with different Irvine parameters has similar properties, the amplitudes of parametric vibration of cables are related to the frequency and amplitude of harmonic support excitations and the effect of distributed viscous damping on parametric vibration of the cables is very small. 相似文献
16.
The idea of"neutralization" has a far-reaching influence on the development of our national ancient musical aesthetics and the shaping of solid music theory.It is also the supreme realm that Con~cianism has been pursuing.From the standpoint of Confucianism.the"Records of Music in Book of Rites'clearly reveals this important aes吐ledc characteristic of China's ancient music in the aspects of the music neutralization,the neutralization of ritual and music,the neutralization of music and politics,the intgnty of humanity and nature. 相似文献
17.
The actual infrastructure of the information society sustains the globalization trend and increases the importance of the information and knowledge. The development of the knowledge society is the direct consequence of the mix of economic, social and cultural processes, which involve the knowledge creation and its equitable distribution, access and sharing. Universities, as poles of knowledge, creativity and innovation, play a key part in the regional development and the global competitiveness. The universities are active promoters of the innovation culture at the regional and international level, by increasing the synergy among education, research and innovation. The article focuses on the role of the academic area in the development of the learning and creative society at the regional level, contributing to the design of new knowledge and technology embedded products, services and organizational processes, which represent the premises of the global competitiveness. The most important challenge the academic environment faces in the new economy is to bridge the gap between the political decision, the governance and the labour market, offering innovative solutions and developing the intellectual capital to address the various issues of the knowledge economy. The article highlights the role of the universities as regional development drivers, by analyzing the economic performance of the Bucharest-llfov region and the direct influence of the trinomial equation： education-research-innovation. 相似文献
18.
The Role of Emotion in Teaching 总被引：1，自引：0，他引：1
Jianzhong Qiao 《美中教育评论》2005,2(6):67-69
Associated with the recent research results of emotion psychology, the paper addresses the role of emotion in teaching from five aspects. The author presents that emotion plays a primary role of internalization and regulation in the process of teaching and directly restricts the accepting of course contents, the mastery of academic knowledge, the internalization of learning motivation, the regulation of students＇ behavior and the construction of teaching strategies while arousing the relevant emotional experience, which is the psychological base of effective teaching. 相似文献
19.
After making an analysis of the deficiencies of the present translation of tourist materials and discussion of the causes of the deficiencies in linguistic differences and cultural differences, the present paper proposes some practical translation methods of tourist materials with the help of the strategy of foreignization. 相似文献
20.
Yongxiao Cheng Yancai Zheng 《美中教育评论》2005,2(11):18-21
Considering the nature of education, the author holds that the fundamental function of education is to serve the customers, with relation to the internationalization of higher education in China. This paper illustrates the inevitability of development and the relative differences, by the discussion of benefit or non-benefit orientation of China＇s private higher education. It points out the direction of its development and the conjuncture of survival with the conclusion that the best option is development, provided the maintenance of our education sovereignty. 相似文献