Using support vector regression (SVR), a novel non-parametric method for recovering implied risk-neutral probability density function (IRNPDF) is investigated by solving linear operator equations. First, the SVR p...Using support vector regression (SVR), a novel non-parametric method for recovering implied risk-neutral probability density function (IRNPDF) is investigated by solving linear operator equations. First, the SVR principle for function approximation is introduced, and an SVR method for solving linear operator equations with knowing some values of the right-hand function and without knowing its form is depicted. Then, the principle for solving the IRNPDF based on SVR and the method for constructing cross-kernel functions are proposed. Finally, an empirical example is given to verify the validity of the method. The results show that the proposed method can overcome the shortcomings of the traditional parametric methods, which have strict restrictions on the option exercise price; meanwhile, it requires less data than other non-parametric methods, and it is a promising method for the recover of IRNPDF.展开更多
The computational fluid dynamics (CFD) method is used to investigate the aerodynamic characteristics of the seat/occupant with windblast protection devices. The upwind Osher scheme is used for the spatial discretisa...The computational fluid dynamics (CFD) method is used to investigate the aerodynamic characteristics of the seat/occupant with windblast protection devices. The upwind Osher scheme is used for the spatial discretisation. The detached-eddy simulation (DES) based on the Spalart-Allmaras one-equation turbulence model is ap- plied to the detached viscous flow simulation behind the seat/occupant, with Mach numbers 0.6 and 1.2 at attack angles between --10 and 30°, and at two sideslip angles of 0 and 15°, respectively. The aerodynamic characteristics of seat/occupants with and without windblast protection devices are calculated in cases of the freestream Mach numbers 0. 8 and 1.6, attack angles from 5 to 30°, and three sideslip angles of 0, --20 and --50°, respectively. Results show that simulation results agree well with experimental data. And the occupant is efficiently protected by windblast protection devices.展开更多
Aim To construct a third order upwind scheme for convection equation. Methods Upwind Lagrange interpolation was used. Results and Conclusion The schemes L p stability for p∈ is proved. Numerical exam...Aim To construct a third order upwind scheme for convection equation. Methods Upwind Lagrange interpolation was used. Results and Conclusion The schemes L p stability for p∈ is proved. Numerical examples show that performance of the third order upwind scheme is better than that of most second order schemes.展开更多
Women in leadership and decision-making roles influence the policies and directions of organizations (Ahuja, 2002). Women in leadership value supports from their organizations. Pro-social outcomes of relationship co...Women in leadership and decision-making roles influence the policies and directions of organizations (Ahuja, 2002). Women in leadership value supports from their organizations. Pro-social outcomes of relationship competence are mediated by the development of empathy, collaborative approaches to conflict, self-disclosure, and social interest (Jogulu & Wood, 2006). Decision-making perspectives have uncertainty as the sole reason for organizational leaders to search for additional relevant information to solidify or clarify the information at the leader's disposal. A phenomenological qualitative research study which explored the preferred style of leadership based on three leadership and decision-making styles is presented in this paper1. The researcher gathered insights into the lived experiences of like-minded sample of respondents from the research population as they described their leadership and decisionmaking experiences within their organizations.展开更多
Mei symmetry and Mei conserved quantity for a non-holonomic system of non-Chetaev's type with unilateralconstraints in the Nielsen style are studied.The differential equations of motion for the system above are es...Mei symmetry and Mei conserved quantity for a non-holonomic system of non-Chetaev's type with unilateralconstraints in the Nielsen style are studied.The differential equations of motion for the system above are established.The definition and the criteria of Mei symmetry,conditions,and expressions of Mei conserved quantity deduced directlyfrom the Mei symmetry are given.An example is given to illustrate the application of the results.展开更多
The decrease of wind velocity (wake losses) in downstream area of wind turbine is generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used, ...The decrease of wind velocity (wake losses) in downstream area of wind turbine is generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used, however it's unclear which model is most appropriate and able to give a high performance in predicting wind velocity deficit. In this subject, a qualification of three analytical wake models (Jensen, lshihara and Frandsen) based on three principal criteria is presented in this paper: (i) the parsimony which characterizes the inverse of model complexity, (ii) the accuracy of estimation in which wake model is compared with the experimental data and (iii) imprecision that is related to assumptions and uncertainty on the value of variables considered in each model. This qualitative analysis shows the inability of wake models to predict wind velocity deficit due to the big uncertainty of variables considered and it sensitivity to wind farm characteristic.展开更多
Liao songs are the cultural and artistic products brewed by the people of Zhuang ethnic minority for thousand years. In this paper, the style and characteristics of singing Zhuang ethnic minority's Liao songs with m...Liao songs are the cultural and artistic products brewed by the people of Zhuang ethnic minority for thousand years. In this paper, the style and characteristics of singing Zhuang ethnic minority's Liao songs with male's two-part voice in Guangxi are mainly introduced through an analysis of vocal music and the study on the performance forms, singing language characteristics, and vocal music and resonance is mainly included, and also the important significance of singing Zhuang ethnic minority's Liao songs with male's two-part voice is discussed. Also, it is compared with the modern Chinese folk singing styles.展开更多
Shakespeare has been studied from many perspectives so far. However, his language style used in his literary works is still worth studying. First of all, this study explores changing sense of emblem and emblem languag...Shakespeare has been studied from many perspectives so far. However, his language style used in his literary works is still worth studying. First of all, this study explores changing sense of emblem and emblem language comparing Shakespeare's era and today. Secondly, it puts stress on the effects of emblem traditions on Shakespeare. Lastly, this article aims to shed light on his emblematical language in his Midsummer Night's Dream, which is one of his most leading works in terms of having highly visible emblematical interpretations.展开更多
This paper examines the directing, acting and rehearsal process in transforming the ancient Babylonian epic Gilgamesh for the stage using performers' journals as a means of determining the effect of corporeal non-wes...This paper examines the directing, acting and rehearsal process in transforming the ancient Babylonian epic Gilgamesh for the stage using performers' journals as a means of determining the effect of corporeal non-western styles on actors whose prior experience was almost exclusively in naturalistic and text-based theatre. The introduction of theatrical elements from multiple cultures including puppetry and the masks and techniques of Noh drama created a multi-tiered field for intercultural exchange. While Patrice Pavis's hourglass model for the transfer of theatrical material from a source to a target culture may hold true for productions that use linear modes of transmission, translation and incorporation of text, music, costumes and styles, its limitations make it necessary to posit alternative theories that take into account intercultural rehearsal practices, the collaboration of source and target culture and the dynamic interactions that take place through the agency of actor training in the fleshly physical theatre.展开更多
In Jewish City in Casimir--historical district of Cracow, Jewish culture manifested its original architectural style based mostly on specific detail. Perception of this type of architectural detail depends, basically,...In Jewish City in Casimir--historical district of Cracow, Jewish culture manifested its original architectural style based mostly on specific detail. Perception of this type of architectural detail depends, basically, on knowledge of the Jewish culture. Proper understanding of meaning of the Jewish architectural detail depends on complex relations between Jewish tangible and intangible culture. Nowadays, it is especially important, according to relatively fast revitalization of the district. All renovation works require specific approach taking into account differences based on cultural diversity. Moreover, the understanding of the Jewish architectural detail is strictly connected with both history of Jews and Poles. One thousand years of cohabitation allowed to understand the economical and, partially, social differences, but not cultural at whole. The main aim of the article is to present chosen cultural and non-cultural factors, affecting the perception of the Jewish architectural detail in Casimir.展开更多
The performance and composition of traditional choral music were championed and dominated by women. Unfortunately, the involvement of women in the practice of art music, specifically theory and composition in Ghana ha...The performance and composition of traditional choral music were championed and dominated by women. Unfortunately, the involvement of women in the practice of art music, specifically theory and composition in Ghana has been observed to be absent or very minimal, the cause of which is problematic to identify. This paper examines why women have been passive in the performance and composition of this musical genre, and suggests avenues for improvement in the situation. Fifteen women across various musical genres: Traditional, Art and Popular were interviewed to ascertain this fact. The results will serve as an aid for an improvement of this unfortunate situation in Ghana.展开更多
School principals' leadership styles play a major role in teachers' performance. This paper examines the relationship between school principals' leadership styles, whether transformational or transactional, and tea...School principals' leadership styles play a major role in teachers' performance. This paper examines the relationship between school principals' leadership styles, whether transformational or transactional, and teachers' achievement motivation. Using the quantitative methodology, a total of 320 heads of instructional departments were randomly selected from randomly selected schools. The results revealed that a transformational leadership style was prevalent among principals, and teachers' achievement motivation was positive. There was a positive correlation between the principals' transformational leadership style and the teachers' achievement motivation. Relevant recommendations are included.展开更多
Jingju actor and director Wu Hsing-kuo's (吴兴国) Lear Is Here (2001) is a 90-minute solo performance adapted from Shakespeare's King Lear and performed injingju style. In this performance, he alternately perfor...Jingju actor and director Wu Hsing-kuo's (吴兴国) Lear Is Here (2001) is a 90-minute solo performance adapted from Shakespeare's King Lear and performed injingju style. In this performance, he alternately performs 10 male and female characters including himself injingju role types ofsheng (male), dan (female),jing (painted face), mo, and chou (clown) in search 0f dual identities. This paper will investigate Wu's performance in Lear Is Here from three directions: First, how Wu subtly combines Shakespearean dramatic tension and psychological complex, his versatilejingju performing styles, and Brechtian alienation effect in developing his unique artistic flair? What are at stake of such an eclectic performance? Second, in the rooting and re-routing of both Shakespearean plays andjingju acting style where Wu Hsing-kuo meets King Lear, how Wu articulates the meticulous details of both source culture and target culture while at once extracting them out of context to interweave and re-articulate them into an eclectic intercultural theater? Third, investigating the cultural exchange, bicroleurs, audience reception, and production mode of the work, the author will try to do away with the "authenticity" or "representativeness" of either the East or the West, but explore the possibilities of the hybrid theater in search of alternative aesthetic and emerging performance genre展开更多
Jack London was one of the outstanding American writers in the late nineteenth and early twentieth century. The Call of the Wild which was based on the Klondike Gold Rush, was the most famous and popular one in China....Jack London was one of the outstanding American writers in the late nineteenth and early twentieth century. The Call of the Wild which was based on the Klondike Gold Rush, was the most famous and popular one in China. These years, lots of scholars have discussed it from various aspects, such as the contents, the themes, the writing styles and its characters. In this short novel, the protagonist Buck is humanized by the author. He is endowed with lots of human qualities, such as loyalty, brave, self-esteem, intelligence and so on. What are the reasons of humanization of the dog protagonist.? Finding out the reasons could help us understand this novel better and it may offer some references for the research on Jack London' s animal novels.展开更多
Today, more people are riding bicycles than ever before--and the numbers keep growing. This is due in part to a greater awareness of environmental issues and growing health consciousness. Another factor driving the in...Today, more people are riding bicycles than ever before--and the numbers keep growing. This is due in part to a greater awareness of environmental issues and growing health consciousness. Another factor driving the increasing number of women bicyclists today is many designer bicycles now available. Still, these bicycles reflect the subjective sensibilities of their designers, and there is no guarantee that they will always match an increasingly diverse array of consumer values. In response to this challenge, our study sets out to build a bicycle design model based on fashion styles popular with young women in their 20s. Fashion analysis and bicycle design analysis used statistical science, such as cluster analysis, principal component analysis, and analytic hierarchy process (AHP). After that, we designed a new bicycle using computer-aided design (CAD) from the analysis results. Finally, the approach model developed in this study was confirmed to be effective by an interview with the company.展开更多
基金The National Natural Science Foundation of China (No.70671025)
文摘Using support vector regression (SVR), a novel non-parametric method for recovering implied risk-neutral probability density function (IRNPDF) is investigated by solving linear operator equations. First, the SVR principle for function approximation is introduced, and an SVR method for solving linear operator equations with knowing some values of the right-hand function and without knowing its form is depicted. Then, the principle for solving the IRNPDF based on SVR and the method for constructing cross-kernel functions are proposed. Finally, an empirical example is given to verify the validity of the method. The results show that the proposed method can overcome the shortcomings of the traditional parametric methods, which have strict restrictions on the option exercise price; meanwhile, it requires less data than other non-parametric methods, and it is a promising method for the recover of IRNPDF.
基金Supported by the Aeronautical Science Foundation of China(2008ZC52039)~~
文摘The computational fluid dynamics (CFD) method is used to investigate the aerodynamic characteristics of the seat/occupant with windblast protection devices. The upwind Osher scheme is used for the spatial discretisation. The detached-eddy simulation (DES) based on the Spalart-Allmaras one-equation turbulence model is ap- plied to the detached viscous flow simulation behind the seat/occupant, with Mach numbers 0.6 and 1.2 at attack angles between --10 and 30°, and at two sideslip angles of 0 and 15°, respectively. The aerodynamic characteristics of seat/occupants with and without windblast protection devices are calculated in cases of the freestream Mach numbers 0. 8 and 1.6, attack angles from 5 to 30°, and three sideslip angles of 0, --20 and --50°, respectively. Results show that simulation results agree well with experimental data. And the occupant is efficiently protected by windblast protection devices.
文摘Aim To construct a third order upwind scheme for convection equation. Methods Upwind Lagrange interpolation was used. Results and Conclusion The schemes L p stability for p∈ is proved. Numerical examples show that performance of the third order upwind scheme is better than that of most second order schemes.
文摘Women in leadership and decision-making roles influence the policies and directions of organizations (Ahuja, 2002). Women in leadership value supports from their organizations. Pro-social outcomes of relationship competence are mediated by the development of empathy, collaborative approaches to conflict, self-disclosure, and social interest (Jogulu & Wood, 2006). Decision-making perspectives have uncertainty as the sole reason for organizational leaders to search for additional relevant information to solidify or clarify the information at the leader's disposal. A phenomenological qualitative research study which explored the preferred style of leadership based on three leadership and decision-making styles is presented in this paper1. The researcher gathered insights into the lived experiences of like-minded sample of respondents from the research population as they described their leadership and decisionmaking experiences within their organizations.
基金Supported by the National Natural Science Foundation of China under Grant No.10572021Preparatory Research Foundation of Jiangnan under Grant No.2008LYY011
文摘Mei symmetry and Mei conserved quantity for a non-holonomic system of non-Chetaev's type with unilateralconstraints in the Nielsen style are studied.The differential equations of motion for the system above are established.The definition and the criteria of Mei symmetry,conditions,and expressions of Mei conserved quantity deduced directlyfrom the Mei symmetry are given.An example is given to illustrate the application of the results.
文摘The decrease of wind velocity (wake losses) in downstream area of wind turbine is generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used, however it's unclear which model is most appropriate and able to give a high performance in predicting wind velocity deficit. In this subject, a qualification of three analytical wake models (Jensen, lshihara and Frandsen) based on three principal criteria is presented in this paper: (i) the parsimony which characterizes the inverse of model complexity, (ii) the accuracy of estimation in which wake model is compared with the experimental data and (iii) imprecision that is related to assumptions and uncertainty on the value of variables considered in each model. This qualitative analysis shows the inability of wake models to predict wind velocity deficit due to the big uncertainty of variables considered and it sensitivity to wind farm characteristic.
文摘Liao songs are the cultural and artistic products brewed by the people of Zhuang ethnic minority for thousand years. In this paper, the style and characteristics of singing Zhuang ethnic minority's Liao songs with male's two-part voice in Guangxi are mainly introduced through an analysis of vocal music and the study on the performance forms, singing language characteristics, and vocal music and resonance is mainly included, and also the important significance of singing Zhuang ethnic minority's Liao songs with male's two-part voice is discussed. Also, it is compared with the modern Chinese folk singing styles.
文摘Shakespeare has been studied from many perspectives so far. However, his language style used in his literary works is still worth studying. First of all, this study explores changing sense of emblem and emblem language comparing Shakespeare's era and today. Secondly, it puts stress on the effects of emblem traditions on Shakespeare. Lastly, this article aims to shed light on his emblematical language in his Midsummer Night's Dream, which is one of his most leading works in terms of having highly visible emblematical interpretations.
文摘This paper examines the directing, acting and rehearsal process in transforming the ancient Babylonian epic Gilgamesh for the stage using performers' journals as a means of determining the effect of corporeal non-western styles on actors whose prior experience was almost exclusively in naturalistic and text-based theatre. The introduction of theatrical elements from multiple cultures including puppetry and the masks and techniques of Noh drama created a multi-tiered field for intercultural exchange. While Patrice Pavis's hourglass model for the transfer of theatrical material from a source to a target culture may hold true for productions that use linear modes of transmission, translation and incorporation of text, music, costumes and styles, its limitations make it necessary to posit alternative theories that take into account intercultural rehearsal practices, the collaboration of source and target culture and the dynamic interactions that take place through the agency of actor training in the fleshly physical theatre.
文摘In Jewish City in Casimir--historical district of Cracow, Jewish culture manifested its original architectural style based mostly on specific detail. Perception of this type of architectural detail depends, basically, on knowledge of the Jewish culture. Proper understanding of meaning of the Jewish architectural detail depends on complex relations between Jewish tangible and intangible culture. Nowadays, it is especially important, according to relatively fast revitalization of the district. All renovation works require specific approach taking into account differences based on cultural diversity. Moreover, the understanding of the Jewish architectural detail is strictly connected with both history of Jews and Poles. One thousand years of cohabitation allowed to understand the economical and, partially, social differences, but not cultural at whole. The main aim of the article is to present chosen cultural and non-cultural factors, affecting the perception of the Jewish architectural detail in Casimir.
文摘The performance and composition of traditional choral music were championed and dominated by women. Unfortunately, the involvement of women in the practice of art music, specifically theory and composition in Ghana has been observed to be absent or very minimal, the cause of which is problematic to identify. This paper examines why women have been passive in the performance and composition of this musical genre, and suggests avenues for improvement in the situation. Fifteen women across various musical genres: Traditional, Art and Popular were interviewed to ascertain this fact. The results will serve as an aid for an improvement of this unfortunate situation in Ghana.
文摘School principals' leadership styles play a major role in teachers' performance. This paper examines the relationship between school principals' leadership styles, whether transformational or transactional, and teachers' achievement motivation. Using the quantitative methodology, a total of 320 heads of instructional departments were randomly selected from randomly selected schools. The results revealed that a transformational leadership style was prevalent among principals, and teachers' achievement motivation was positive. There was a positive correlation between the principals' transformational leadership style and the teachers' achievement motivation. Relevant recommendations are included.
文摘Jingju actor and director Wu Hsing-kuo's (吴兴国) Lear Is Here (2001) is a 90-minute solo performance adapted from Shakespeare's King Lear and performed injingju style. In this performance, he alternately performs 10 male and female characters including himself injingju role types ofsheng (male), dan (female),jing (painted face), mo, and chou (clown) in search 0f dual identities. This paper will investigate Wu's performance in Lear Is Here from three directions: First, how Wu subtly combines Shakespearean dramatic tension and psychological complex, his versatilejingju performing styles, and Brechtian alienation effect in developing his unique artistic flair? What are at stake of such an eclectic performance? Second, in the rooting and re-routing of both Shakespearean plays andjingju acting style where Wu Hsing-kuo meets King Lear, how Wu articulates the meticulous details of both source culture and target culture while at once extracting them out of context to interweave and re-articulate them into an eclectic intercultural theater? Third, investigating the cultural exchange, bicroleurs, audience reception, and production mode of the work, the author will try to do away with the "authenticity" or "representativeness" of either the East or the West, but explore the possibilities of the hybrid theater in search of alternative aesthetic and emerging performance genre
文摘Jack London was one of the outstanding American writers in the late nineteenth and early twentieth century. The Call of the Wild which was based on the Klondike Gold Rush, was the most famous and popular one in China. These years, lots of scholars have discussed it from various aspects, such as the contents, the themes, the writing styles and its characters. In this short novel, the protagonist Buck is humanized by the author. He is endowed with lots of human qualities, such as loyalty, brave, self-esteem, intelligence and so on. What are the reasons of humanization of the dog protagonist.? Finding out the reasons could help us understand this novel better and it may offer some references for the research on Jack London' s animal novels.
文摘Today, more people are riding bicycles than ever before--and the numbers keep growing. This is due in part to a greater awareness of environmental issues and growing health consciousness. Another factor driving the increasing number of women bicyclists today is many designer bicycles now available. Still, these bicycles reflect the subjective sensibilities of their designers, and there is no guarantee that they will always match an increasingly diverse array of consumer values. In response to this challenge, our study sets out to build a bicycle design model based on fashion styles popular with young women in their 20s. Fashion analysis and bicycle design analysis used statistical science, such as cluster analysis, principal component analysis, and analytic hierarchy process (AHP). After that, we designed a new bicycle using computer-aided design (CAD) from the analysis results. Finally, the approach model developed in this study was confirmed to be effective by an interview with the company.