In this paper,a dynamic equivalent method applicable to the direct-drive permanent magnet synchronous generator(PMSG)based wind farms under asymmetrical faults is proposed.Firstly,PMSGs are clustered based on their di...In this paper,a dynamic equivalent method applicable to the direct-drive permanent magnet synchronous generator(PMSG)based wind farms under asymmetrical faults is proposed.Firstly,PMSGs are clustered based on their different active power characteristics under asymmetrical faults.Further,single-machine equivalent models(SMEMs)are constructed for different clusters of PMSGs.In particular,an SMEM with multi-segmented slope recovery is introduced for PMSGs with ramp recovery characteristics.Further,a collector network equivalent method for wind farms applicable to both symmetrical and asymmetrical faults is presented.Moreover,an iterative simulation method is used to gain the required clustering indicators before the fault actually occurs.Eventually,the effectiveness of the proposed dynamic equivalent method is verified on a modified IEEE 39-bus system.展开更多
The high-speed winding spindle employs a flexible support system incorporating rubber O-rings.By precisely configuring the structural parameters and the number of the O-rings,the spindle can stably surpass its critica...The high-speed winding spindle employs a flexible support system incorporating rubber O-rings.By precisely configuring the structural parameters and the number of the O-rings,the spindle can stably surpass its critical speed points and maintain operational stability across the entire working speed range.However,the support stiffness and damping of rubber O-rings exhibit significant nonlinear frequency dependence.Conventional experimental methods for deriving equivalent stiffness and damping,based on the principle of the forced non-resonance method,require fabricating custom setups for each O-ring specification and conducting vibration tests at varying frequencies,resulting in low efficiency and high costs.This study proposes a hybrid simulation-experimental method for dynamic parameter identification.Firstly,the frequency-dependent dynamic parameters of a specific O-ring support system are experimentally obtained.Subsequently,a corresponding parametric finite element model is established to simulate and solve the equivalent elastic modulus and equivalent stiffness-damping coefficient of this O-ring support system.Ultimately,after iterative simulation,the simulated and experimental results achieve a 99.7%agreement.The parametric finite element model developed herein can directly simulate and inversely estimate frequency-dependent dynamic parameters for O-rings of different specifications but identical elastic modulus.展开更多
Since the high penetration of distributed energy sources complicates the dynamics of electrical power systems,accurate dynamic models are indispensable for study on the transient behavior of the microgrid(MG).In some ...Since the high penetration of distributed energy sources complicates the dynamics of electrical power systems,accurate dynamic models are indispensable for study on the transient behavior of the microgrid(MG).In some practices,the lack of full detailed information results in failure of dif-ferential equation based dynamic modeling,which leads to a demand for a black-box MG modeling method.It is a critical challenge to maintain the effectiveness of the black-box model under a wide operating range and various fault conditions.In this paper,inspired by the mathematical equivalence between the recurrent neural network(RNN)and differential-algebraic equations(DAEs),a dynamic equivalent modeling method,using long short-term memory(LSTM),is presented to tackle this challenge.At first,the modeling equivalence and advantages of our basic idea are explained.Then,modeling procedures,including data preparation and design guidelines,are presented.Finally,the proposed method is applied to a multi-microgrid testing system for performance evaluation.The results,under various scenarios,reveal that the proposed modeling method has an adequate capability for representing the dynamic behaviors of a black-box MG under grid fault and operating point changing conditions.Index Terms-Deep learning,dynamic behavior,dynamic equivalent model,microgrid,neural network.展开更多
Nida's famous notion of Dynamic Equivalence in translation process is characterized by three stages - analysis, transfer and restructuring, which are explained in detail. The application of these principles are il...Nida's famous notion of Dynamic Equivalence in translation process is characterized by three stages - analysis, transfer and restructuring, which are explained in detail. The application of these principles are illustrated by providing step-by-step explanation on the translation process of headings of two news reports, which are selected from Far Eastern Economic Review.展开更多
A seal device as an important component of aeroengines has decisive influence on per- formance, reliability, and working life of aeroengines. With the development of aeroengines, demands on the performance characteris...A seal device as an important component of aeroengines has decisive influence on per- formance, reliability, and working life of aeroengines. With the development of aeroengines, demands on the performance characteristics of seal devices are made strictly. Finger seal as a novel kind of sealing device, recently attracts more and more attentions in academic circles and engineer- ing fields at home and abroad. Research on finger seals has been extensively developed, especially on leakage and wear performances under dynamic conditions. However, it is a pity that the work on finger seals has been limited with a single approach that is improving the performance by structural optimization; in addition, the technology of dynamic analysis on finger seals is weak. Aiming at the problems mentioned above, a distributed mass equivalent dynamic model of finger seals considering the coupling effect of overlaid laminates is established in the present paper, the dynamic perfor- mance of 2.5 dimension C/C composite finger seal is analyzed with the model, and then the effects of fiber bundle density and fiber bundle preparation direction on finger seal＇s dynamic performance are discussed, as well as compared with those of Co-based alloy finger seal. The current work is about dynamic analysis of finger seals and application of C/C composite in this paper may have much academic significance and many engineering values for improving research level of finger seal dynamics and exploring feasibility of C/C composite being used for finger seals.展开更多
The equivalent simplification of large wind farms is essential for evaluating the safety of power systems.However,sub-synchronous oscillations can significantly affect the stability of power systems.Although detailed ...The equivalent simplification of large wind farms is essential for evaluating the safety of power systems.However,sub-synchronous oscillations can significantly affect the stability of power systems.Although detailed mathematical models of wind farms can help accurately analyze the oscillation mechanism,the solution process is complicated and may lead to problems such as the“dimensional disaster.”Therefore,this paper proposes a sub-synchronous frequency domain-equivalent modeling method for wind farms based on the nature of the equivalent resistance of the rotor,in order to analyze sub-synchronous oscillations accurately.To this end,Matlab/Simulink is used to simulate a detailed model,a single-unit model,and an equivalent model,considering a wind farm as an example.A simulation analysis is then performed under the sub-synchronous frequency to prove that the model is effective and that the wind farm equivalence model method is valid.展开更多
Dynamic equivalence of the wind farm is a fundamental problem in the simulation of a power system connected with wind farms because it is unpractical to model every generator in a wind farm in detail. In this paper, a...Dynamic equivalence of the wind farm is a fundamental problem in the simulation of a power system connected with wind farms because it is unpractical to model every generator in a wind farm in detail. In this paper, an Equivalence Method based on the Output Characteristics (EMOC) is proposed, with which the wind farm composed of Squirrel-Cage Induction Generators (SCIGs) can be equivalent to one generator. By considering the diversity of wind generators and special operating characteristics of a wind farm, the equivalent generator based on EMOC responds accurately in various faults. No matter whether the wind farm is integrated in grid or just programmed, EMOC can be used to acquire an accurate equivalent generator. Simulation of the dynamic equivalence of an SCIG wind farm validated the method.展开更多
This paper presents an introduction to the concepts of domestication and foreignization and the theory of Nida＇s ＂dynamic equivalence＂. Then, the paper makes an analysis of ＂dynamic equivalence＂ from the perspect...This paper presents an introduction to the concepts of domestication and foreignization and the theory of Nida＇s ＂dynamic equivalence＂. Then, the paper makes an analysis of ＂dynamic equivalence＂ from the perspective of domestication and foreignization.展开更多
Chinese idioms are hard to translate.The aim of this thesis is to analyze Nida's Dynamic Equivalence and apply it to the translation of Chinese idioms.
With the fast globalization of the whole world and the intimate international cooperation of enterprises, translation is playing a more and more essential role, espeically in advertisemnts where enterprises want to es...With the fast globalization of the whole world and the intimate international cooperation of enterprises, translation is playing a more and more essential role, espeically in advertisemnts where enterprises want to establish a positive and healthy image in the competitive world market to promote their products and make more profits. Since Nida proposed his famous theory of dynamic equivalence, the English-Chinese advertisemnts translation has no longer been so mechanic and achieved more beauties. The translation of advertisement and trademark tends towards simplicity and visualization in association with the theory of dynamic equivalence, the objective criterion of translation proposed by Nida, emphasizing the inside connotation. Information is transformed during the process by analyzing carefully, distinguishing accurately, and processing flexibly in different situations so that translators can keep the information in high fidelity and gain dynamic equivalence.展开更多
Inspired by Eugene Nida's dynamic equivalence theory,this thesis takes the translation of Samul Ullman's work Youth as a case study.It explores the three translated versions of Mrs.Zhang Aiqing,Mr.Huang Ren an...Inspired by Eugene Nida's dynamic equivalence theory,this thesis takes the translation of Samul Ullman's work Youth as a case study.It explores the three translated versions of Mrs.Zhang Aiqing,Mr.Huang Ren and Mr.Xu Hanlin respectively.These versions are analyzed at the levels of lexicology,syntax,rhetoric,semasiology and style.Then it points out that the same effect on the target language readers are as the original text has done on the source language readers,in other words,it proves the efficiency of dynamic equivalence in the translation of Youth.展开更多
English and Chinese belong to different language families, so they have difference on their own characteristics, habits expression, syntactic structure and many other aspects. Nida＇ s dynamic equivalence theory think...English and Chinese belong to different language families, so they have difference on their own characteristics, habits expression, syntactic structure and many other aspects. Nida＇ s dynamic equivalence theory thinks that translation is not Simple literal equivalence, but it is corresponding to two languages meanings and styles that are not rigidly adhered to forms. Therefore, we also need consider the cultural context in addition to understanding features of two languages in the process of translation, This paper makes a preliminary summary research on the parts of speech translation of English and Chinese translation to help translators better to deal with the parts of speech translation in the English and Chinese translation under the guidance of dynamic equivalence.展开更多
This essay explores the notion of dynamic equivalence proposed by Nida and its practical usage as well as limitations in translation for poetry,and all the examples are drawn from the Story of the Stone,translated by ...This essay explores the notion of dynamic equivalence proposed by Nida and its practical usage as well as limitations in translation for poetry,and all the examples are drawn from the Story of the Stone,translated by David Hawkes from Chinese into English.展开更多
Using the active feedback control system on the elastic wave metamaterial,this research concentrates on the sound transmission with the dynamic effective model.The metamaterial is subjected to an incident pressure and...Using the active feedback control system on the elastic wave metamaterial,this research concentrates on the sound transmission with the dynamic effective model.The metamaterial is subjected to an incident pressure and immersed in the external mean flow.The elastic wave metamaterial consists of double plates and the upper and lower four-link mechanisms are attached inside.The vertical resonator is attached by the active feedback control system and connected with two four-link mechanisms.Based on the dynamic equivalent method,the metamaterial is equivalent as a single-layer plate by the dynamic effective parameter.With the coupling between the fluid and structure,the expression of the sound transmission loss(STL)is derived.This research shows the influence of effective mass density on sound transmission properties,and the STL in both modes can be tuned by the acceleration and displacement feedback constants.In addition,the dynamic response and the STL are also changed obviously by different values of structural damping,incident angle(i.e.,the elevation and azimuth angles)and Mach number of the external fluid with the mean flow property.The results for sound transmission by two methods are compared,i.e.,the virtual work principle for double plates and the dynamic equivalent method corresponding to a single one.This paper is expected to be helpful for understanding the sound transmission properties of both pure single-and double-plate models.展开更多
Translation of children's literature has developed so quickly in recent years that many scholars have turned to research it. However, as special readers, children's reading ability are limited. This thesis ana...Translation of children's literature has developed so quickly in recent years that many scholars have turned to research it. However, as special readers, children's reading ability are limited. This thesis analyzes and discusses the features of children's book and the possible strategies on translation of children's book.展开更多
Based on dynamic triaxial test results of saturated soft clay, similarities of variations between accumulated pore water pressure and accumulated deformation were analyzed. The Parr＇s equation on accumulated deformat...Based on dynamic triaxial test results of saturated soft clay, similarities of variations between accumulated pore water pressure and accumulated deformation were analyzed. The Parr＇s equation on accumulated deformation was modified to create an attenuation-type curve model on accumulated pore water pressure in saturated normal consolidation clay. In this model, dynamic strength was introduced and a new parameter called equivalent dynamic stress level was added. Besides, based on comparative analysis on variations between failure-type and attenuatiun-type curves, a failure-type curve model was created on accumulated pore water pressure in saturated normal consolidation clay. Two models can take cycle number, coupling of static and dynamic deviator stress, and consolidation way into consideration. The models are verified by test results. The correlation coefficients are more than 0.98 for optimization of test results based on the two models, and there is good agreement between the optimized and test curves, which shows that the two models are suitable to predict variations of accumulated pore water pressure under different loading cases and consolidation ways. In order to improve prediction accuracy, it is suggested that loading cases and consolidation ways should be consistent with in-situ conditions when dynamic triaxial tests are used to determine the constants in the models.展开更多
Dynamic Equivalence and Skopos Theory are two important translation theories in the fields of translation, which many scholars spare no efforts to research on. This short essay intends to compare and complement betwee...Dynamic Equivalence and Skopos Theory are two important translation theories in the fields of translation, which many scholars spare no efforts to research on. This short essay intends to compare and complement between Nida's Dynamic Equivalence and Skopos theory after briefly reviewing these two translation theories. It is aimed for helping readers improve their translation skills via stimulating them to consider translation issues from different angles, such as the nature of translation, the target of translation, translation market, cultural constrains, translation process, translation effects, and etc. And this essay focuses on Nida's Dynamic Equivalence and Skopos theory, a part of functional theories via comparing and harmonizing these two translation theories.展开更多
"Feng Qiao Ye Bo" has been translated into many different English versions,a systematic translation analysis using Nida's two types of equivalence-formal equivalence and dynamic equivalence-has not been ..."Feng Qiao Ye Bo" has been translated into many different English versions,a systematic translation analysis using Nida's two types of equivalence-formal equivalence and dynamic equivalence-has not been undertaken.This thesis thus aims at translating " Feng Qiao Ye Bo" by using two important translation theories of Nida and trys to search for their differences.展开更多
A general theoretical model is developed to investigate the sound radiation from an infinite orthogonally stiffened plate under point excitation force. The plate can be metallic or composite, and fluid loading is also...A general theoretical model is developed to investigate the sound radiation from an infinite orthogonally stiffened plate under point excitation force. The plate can be metallic or composite, and fluid loading is also considered in the research. The first order shear deformation theory is used to account for the transverse shear deformation. The motion of the equally spaced stiffeners is examined by considering their bending vibrations and torsional movements. Based on the periodic structure theory and the concepts of the equivalent dynamic flexibility of the plate, the generalized vibro-acoustic equation of the model is obtained by applying the Fourier transform method. The generalized model that can be solved numerically is validated by comparing model predictions with the existing results. Numerical calculations are performed to investigate the effects of the location of the excitation, the spacing of the stiffeners, the plate thickness, the strengthening form and the fiber orientation on the sound radiation characteristic of the orthogonaUy stiffened plate, and some practical conclusions are drawn from these parameter studies.展开更多
基金supported by the National Natural Science Foundation of China(No.U2166601).
文摘In this paper,a dynamic equivalent method applicable to the direct-drive permanent magnet synchronous generator(PMSG)based wind farms under asymmetrical faults is proposed.Firstly,PMSGs are clustered based on their different active power characteristics under asymmetrical faults.Further,single-machine equivalent models(SMEMs)are constructed for different clusters of PMSGs.In particular,an SMEM with multi-segmented slope recovery is introduced for PMSGs with ramp recovery characteristics.Further,a collector network equivalent method for wind farms applicable to both symmetrical and asymmetrical faults is presented.Moreover,an iterative simulation method is used to gain the required clustering indicators before the fault actually occurs.Eventually,the effectiveness of the proposed dynamic equivalent method is verified on a modified IEEE 39-bus system.
基金National Key R&D Program of China(No.2017YFB1304000)Fundamental Research Funds for the Central Universities,China(No.2232023G-05-1)。
文摘The high-speed winding spindle employs a flexible support system incorporating rubber O-rings.By precisely configuring the structural parameters and the number of the O-rings,the spindle can stably surpass its critical speed points and maintain operational stability across the entire working speed range.However,the support stiffness and damping of rubber O-rings exhibit significant nonlinear frequency dependence.Conventional experimental methods for deriving equivalent stiffness and damping,based on the principle of the forced non-resonance method,require fabricating custom setups for each O-ring specification and conducting vibration tests at varying frequencies,resulting in low efficiency and high costs.This study proposes a hybrid simulation-experimental method for dynamic parameter identification.Firstly,the frequency-dependent dynamic parameters of a specific O-ring support system are experimentally obtained.Subsequently,a corresponding parametric finite element model is established to simulate and solve the equivalent elastic modulus and equivalent stiffness-damping coefficient of this O-ring support system.Ultimately,after iterative simulation,the simulated and experimental results achieve a 99.7%agreement.The parametric finite element model developed herein can directly simulate and inversely estimate frequency-dependent dynamic parameters for O-rings of different specifications but identical elastic modulus.
基金supported in part by the Science Search Foundation of Liaoning Educational Department(No.LQGD2020002).
文摘Since the high penetration of distributed energy sources complicates the dynamics of electrical power systems,accurate dynamic models are indispensable for study on the transient behavior of the microgrid(MG).In some practices,the lack of full detailed information results in failure of dif-ferential equation based dynamic modeling,which leads to a demand for a black-box MG modeling method.It is a critical challenge to maintain the effectiveness of the black-box model under a wide operating range and various fault conditions.In this paper,inspired by the mathematical equivalence between the recurrent neural network(RNN)and differential-algebraic equations(DAEs),a dynamic equivalent modeling method,using long short-term memory(LSTM),is presented to tackle this challenge.At first,the modeling equivalence and advantages of our basic idea are explained.Then,modeling procedures,including data preparation and design guidelines,are presented.Finally,the proposed method is applied to a multi-microgrid testing system for performance evaluation.The results,under various scenarios,reveal that the proposed modeling method has an adequate capability for representing the dynamic behaviors of a black-box MG under grid fault and operating point changing conditions.Index Terms-Deep learning,dynamic behavior,dynamic equivalent model,microgrid,neural network.
文摘Nida's famous notion of Dynamic Equivalence in translation process is characterized by three stages - analysis, transfer and restructuring, which are explained in detail. The application of these principles are illustrated by providing step-by-step explanation on the translation process of headings of two news reports, which are selected from Far Eastern Economic Review.
基金supported by the National Natural Science Foundation of China (No. 50575182)the Natural Science Foundation of Shaanxi Province of China (2014JM7266)
文摘A seal device as an important component of aeroengines has decisive influence on per- formance, reliability, and working life of aeroengines. With the development of aeroengines, demands on the performance characteristics of seal devices are made strictly. Finger seal as a novel kind of sealing device, recently attracts more and more attentions in academic circles and engineer- ing fields at home and abroad. Research on finger seals has been extensively developed, especially on leakage and wear performances under dynamic conditions. However, it is a pity that the work on finger seals has been limited with a single approach that is improving the performance by structural optimization; in addition, the technology of dynamic analysis on finger seals is weak. Aiming at the problems mentioned above, a distributed mass equivalent dynamic model of finger seals considering the coupling effect of overlaid laminates is established in the present paper, the dynamic perfor- mance of 2.5 dimension C/C composite finger seal is analyzed with the model, and then the effects of fiber bundle density and fiber bundle preparation direction on finger seal＇s dynamic performance are discussed, as well as compared with those of Co-based alloy finger seal. The current work is about dynamic analysis of finger seals and application of C/C composite in this paper may have much academic significance and many engineering values for improving research level of finger seal dynamics and exploring feasibility of C/C composite being used for finger seals.
基金supported by the National Key R&D Program of China“Response-driven intelligent enhanced analysis and control for bulk power system stability”(No.2021YFB2400800)。
文摘The equivalent simplification of large wind farms is essential for evaluating the safety of power systems.However,sub-synchronous oscillations can significantly affect the stability of power systems.Although detailed mathematical models of wind farms can help accurately analyze the oscillation mechanism,the solution process is complicated and may lead to problems such as the“dimensional disaster.”Therefore,this paper proposes a sub-synchronous frequency domain-equivalent modeling method for wind farms based on the nature of the equivalent resistance of the rotor,in order to analyze sub-synchronous oscillations accurately.To this end,Matlab/Simulink is used to simulate a detailed model,a single-unit model,and an equivalent model,considering a wind farm as an example.A simulation analysis is then performed under the sub-synchronous frequency to prove that the model is effective and that the wind farm equivalence model method is valid.
文摘Dynamic equivalence of the wind farm is a fundamental problem in the simulation of a power system connected with wind farms because it is unpractical to model every generator in a wind farm in detail. In this paper, an Equivalence Method based on the Output Characteristics (EMOC) is proposed, with which the wind farm composed of Squirrel-Cage Induction Generators (SCIGs) can be equivalent to one generator. By considering the diversity of wind generators and special operating characteristics of a wind farm, the equivalent generator based on EMOC responds accurately in various faults. No matter whether the wind farm is integrated in grid or just programmed, EMOC can be used to acquire an accurate equivalent generator. Simulation of the dynamic equivalence of an SCIG wind farm validated the method.
文摘This paper presents an introduction to the concepts of domestication and foreignization and the theory of Nida＇s ＂dynamic equivalence＂. Then, the paper makes an analysis of ＂dynamic equivalence＂ from the perspective of domestication and foreignization.
文摘Chinese idioms are hard to translate.The aim of this thesis is to analyze Nida's Dynamic Equivalence and apply it to the translation of Chinese idioms.
文摘With the fast globalization of the whole world and the intimate international cooperation of enterprises, translation is playing a more and more essential role, espeically in advertisemnts where enterprises want to establish a positive and healthy image in the competitive world market to promote their products and make more profits. Since Nida proposed his famous theory of dynamic equivalence, the English-Chinese advertisemnts translation has no longer been so mechanic and achieved more beauties. The translation of advertisement and trademark tends towards simplicity and visualization in association with the theory of dynamic equivalence, the objective criterion of translation proposed by Nida, emphasizing the inside connotation. Information is transformed during the process by analyzing carefully, distinguishing accurately, and processing flexibly in different situations so that translators can keep the information in high fidelity and gain dynamic equivalence.
文摘Inspired by Eugene Nida's dynamic equivalence theory,this thesis takes the translation of Samul Ullman's work Youth as a case study.It explores the three translated versions of Mrs.Zhang Aiqing,Mr.Huang Ren and Mr.Xu Hanlin respectively.These versions are analyzed at the levels of lexicology,syntax,rhetoric,semasiology and style.Then it points out that the same effect on the target language readers are as the original text has done on the source language readers,in other words,it proves the efficiency of dynamic equivalence in the translation of Youth.
文摘English and Chinese belong to different language families, so they have difference on their own characteristics, habits expression, syntactic structure and many other aspects. Nida＇ s dynamic equivalence theory thinks that translation is not Simple literal equivalence, but it is corresponding to two languages meanings and styles that are not rigidly adhered to forms. Therefore, we also need consider the cultural context in addition to understanding features of two languages in the process of translation, This paper makes a preliminary summary research on the parts of speech translation of English and Chinese translation to help translators better to deal with the parts of speech translation in the English and Chinese translation under the guidance of dynamic equivalence.
文摘This essay explores the notion of dynamic equivalence proposed by Nida and its practical usage as well as limitations in translation for poetry,and all the examples are drawn from the Story of the Stone,translated by David Hawkes from Chinese into English.
基金supported by the Science and Technology Project of Hebei Education Department (Grant No.JZX20230004)National Natural Science Fund of China (Grant No.12172118)+1 种基金Research Program of Local Science and Technology Development under the guidance of Central China (Grant No.216Z4402G)Open Project of the Chongqing Key Laboratory of Green (Grant No.GATRI2021F01005B).
基金The authors wish to express gratitude for the support provided by the National Natural Science Foundation of China(Grant Nos.11922209,11991031 and 12021002).
文摘Using the active feedback control system on the elastic wave metamaterial,this research concentrates on the sound transmission with the dynamic effective model.The metamaterial is subjected to an incident pressure and immersed in the external mean flow.The elastic wave metamaterial consists of double plates and the upper and lower four-link mechanisms are attached inside.The vertical resonator is attached by the active feedback control system and connected with two four-link mechanisms.Based on the dynamic equivalent method,the metamaterial is equivalent as a single-layer plate by the dynamic effective parameter.With the coupling between the fluid and structure,the expression of the sound transmission loss(STL)is derived.This research shows the influence of effective mass density on sound transmission properties,and the STL in both modes can be tuned by the acceleration and displacement feedback constants.In addition,the dynamic response and the STL are also changed obviously by different values of structural damping,incident angle(i.e.,the elevation and azimuth angles)and Mach number of the external fluid with the mean flow property.The results for sound transmission by two methods are compared,i.e.,the virtual work principle for double plates and the dynamic equivalent method corresponding to a single one.This paper is expected to be helpful for understanding the sound transmission properties of both pure single-and double-plate models.
文摘Translation of children's literature has developed so quickly in recent years that many scholars have turned to research it. However, as special readers, children's reading ability are limited. This thesis analyzes and discusses the features of children's book and the possible strategies on translation of children's book.
基金Project(2009AA11Z101) supported by National High Technology Research and Development Program of ChinaProject supported by Postdoctoral Science Foundation of Central South University,China+1 种基金Project(2012QNZT045) supported by Fundamental Research Funds for Central Universities of ChinaProject(2011CB710601) supported by the National Basic Research Program of China
文摘Based on dynamic triaxial test results of saturated soft clay, similarities of variations between accumulated pore water pressure and accumulated deformation were analyzed. The Parr＇s equation on accumulated deformation was modified to create an attenuation-type curve model on accumulated pore water pressure in saturated normal consolidation clay. In this model, dynamic strength was introduced and a new parameter called equivalent dynamic stress level was added. Besides, based on comparative analysis on variations between failure-type and attenuatiun-type curves, a failure-type curve model was created on accumulated pore water pressure in saturated normal consolidation clay. Two models can take cycle number, coupling of static and dynamic deviator stress, and consolidation way into consideration. The models are verified by test results. The correlation coefficients are more than 0.98 for optimization of test results based on the two models, and there is good agreement between the optimized and test curves, which shows that the two models are suitable to predict variations of accumulated pore water pressure under different loading cases and consolidation ways. In order to improve prediction accuracy, it is suggested that loading cases and consolidation ways should be consistent with in-situ conditions when dynamic triaxial tests are used to determine the constants in the models.
文摘Dynamic Equivalence and Skopos Theory are two important translation theories in the fields of translation, which many scholars spare no efforts to research on. This short essay intends to compare and complement between Nida's Dynamic Equivalence and Skopos theory after briefly reviewing these two translation theories. It is aimed for helping readers improve their translation skills via stimulating them to consider translation issues from different angles, such as the nature of translation, the target of translation, translation market, cultural constrains, translation process, translation effects, and etc. And this essay focuses on Nida's Dynamic Equivalence and Skopos theory, a part of functional theories via comparing and harmonizing these two translation theories.
文摘"Feng Qiao Ye Bo" has been translated into many different English versions,a systematic translation analysis using Nida's two types of equivalence-formal equivalence and dynamic equivalence-has not been undertaken.This thesis thus aims at translating " Feng Qiao Ye Bo" by using two important translation theories of Nida and trys to search for their differences.
基金financially supported by the Science Fund for Outstanding Youth of the National Natural Science Foundation of China(Grant No.51222904)the National Security Major Basic Research Program of China(Grant No.613157)+1 种基金the Key Program of National Natural Science Foundation of China(Grant No.0939002)the National Natural Science Foundation of China(Grant No.51209052)
文摘A general theoretical model is developed to investigate the sound radiation from an infinite orthogonally stiffened plate under point excitation force. The plate can be metallic or composite, and fluid loading is also considered in the research. The first order shear deformation theory is used to account for the transverse shear deformation. The motion of the equally spaced stiffeners is examined by considering their bending vibrations and torsional movements. Based on the periodic structure theory and the concepts of the equivalent dynamic flexibility of the plate, the generalized vibro-acoustic equation of the model is obtained by applying the Fourier transform method. The generalized model that can be solved numerically is validated by comparing model predictions with the existing results. Numerical calculations are performed to investigate the effects of the location of the excitation, the spacing of the stiffeners, the plate thickness, the strengthening form and the fiber orientation on the sound radiation characteristic of the orthogonaUy stiffened plate, and some practical conclusions are drawn from these parameter studies.
