针对目前以煤炭等化石能源为主的能源供给与消费模式带来的能源紧张与环境恶化问题,借鉴综合能源系统的开发利用思路,研究电转气(power to gas,P2G)技术原理下的气电互联综合能源系统优化调度运行问题。通过构建P2G参与气电互联综合能...针对目前以煤炭等化石能源为主的能源供给与消费模式带来的能源紧张与环境恶化问题,借鉴综合能源系统的开发利用思路,研究电转气(power to gas,P2G)技术原理下的气电互联综合能源系统优化调度运行问题。通过构建P2G参与气电互联综合能源系统多目标协同优化运行模型,在P2G碳捕捉效应、气电耦合效应等功能特征基础上,借助布谷鸟算法对多目标进行处理。算例结果表明,P2G设备接入后,具备有效降低弃风率、削峰填谷、提升碳减排效益等作用,为可再生能源消纳提供了新途径。展开更多
In this paper, we observe the generalized Harmonic numbers H<sub>n,k,r</sub> (α,β). Using generating function, we investigate some new identities involving generalized Harmonic numbers H<sub>n,k,r&...In this paper, we observe the generalized Harmonic numbers H<sub>n,k,r</sub> (α,β). Using generating function, we investigate some new identities involving generalized Harmonic numbers H<sub>n,k,r</sub> (α,β) with Changhee sequences, Daehee sequences, Degenerate Changhee-Genoocchi sequences, Two kinds of degenerate Stirling numbers. Using Riordan arrays, we explore interesting relations between these polynomials, Apostol Bernoulli sequences, Apostol Euler sequences, Apostol Genoocchi sequences.展开更多
In this paper, we consider the Cauchy numbers and polynomials of order k and give some relation between Cauchy polynomials of order k and special polynomials by using generating functions and the Riordan matrix method...In this paper, we consider the Cauchy numbers and polynomials of order k and give some relation between Cauchy polynomials of order k and special polynomials by using generating functions and the Riordan matrix methods. In addition, we establish some new equalities and relations involving high-order Cauchy numbers and polynomials, high-order Daehee numbers and polynomials, the generalized Bell polynomials, the Bernoulli numbers and polynomials, high-order Changhee polynomials, high-order Changhee-Genocchi polynomials, the combinatorial numbers, Lah numbers and Stirling numbers, etc.展开更多
In this paper, by the classical method of Riordan arrays, establish several general involving higher-order Changhee numbers and polynomials, which are related to special polynomials and numbers. From those numbers, we...In this paper, by the classical method of Riordan arrays, establish several general involving higher-order Changhee numbers and polynomials, which are related to special polynomials and numbers. From those numbers, we derive some interesting and new identities.展开更多
Let the numbers be defined by , where and are the exponential complete Bell polynomials. In this paper, by means of the methods of Riordan arrays, we establish general identities involving the numbers , binomial coeff...Let the numbers be defined by , where and are the exponential complete Bell polynomials. In this paper, by means of the methods of Riordan arrays, we establish general identities involving the numbers , binomial coefficients and inverse of binomial coefficients. From these identities, we deduce some identities involving binomial coefficients, Harmonic numbers and the Euler sum identities. Furthermore, we obtain the asymptotic values of some summations associated with the numbers by Darboux’s method.展开更多
With more emphasis on the communicative and pragmatic function of Business English learning, the author discusses a case study of a Business English course based on projects conducted by the students in their communit...With more emphasis on the communicative and pragmatic function of Business English learning, the author discusses a case study of a Business English course based on projects conducted by the students in their community This curriculum aims at students experiencing and implementing their knowledge of Business and English in the real business environments, engaging community in the process, and avoiding isolation and separation of business English teaching and learning from communities. The research lays more importance on the students＇ experiencing and participating process by providing them with a series of guidelines as reference and assessment, but meanwhile the students have their freedom of choices and decision-making in many aspects. Integrative skills are practiced including linguistic skills, business-related skills, communicative skills, and technology-related skills. Specifically, the students are required to conduct a mini market research in their community. The topic of the research is negotiated, classified, and grouped in the entire class until each individual student belongs to a group. The project procedure and requirements are given to the students on weekly basis, including field of research, questionnaire, data collection and analysis, report, and the final group presentation. Based on their experience from the research, the students write down their reflections. Based on the observation of the instructor and students＇ feedback, the research found that students＇ expectations and teacher＇s roles varied in a number of aspects. A variety of knowledge and skills have been practiced. Problems have also been found in each step of the project.展开更多
文摘针对目前以煤炭等化石能源为主的能源供给与消费模式带来的能源紧张与环境恶化问题,借鉴综合能源系统的开发利用思路,研究电转气(power to gas,P2G)技术原理下的气电互联综合能源系统优化调度运行问题。通过构建P2G参与气电互联综合能源系统多目标协同优化运行模型,在P2G碳捕捉效应、气电耦合效应等功能特征基础上,借助布谷鸟算法对多目标进行处理。算例结果表明,P2G设备接入后,具备有效降低弃风率、削峰填谷、提升碳减排效益等作用,为可再生能源消纳提供了新途径。
文摘In this paper, we observe the generalized Harmonic numbers H<sub>n,k,r</sub> (α,β). Using generating function, we investigate some new identities involving generalized Harmonic numbers H<sub>n,k,r</sub> (α,β) with Changhee sequences, Daehee sequences, Degenerate Changhee-Genoocchi sequences, Two kinds of degenerate Stirling numbers. Using Riordan arrays, we explore interesting relations between these polynomials, Apostol Bernoulli sequences, Apostol Euler sequences, Apostol Genoocchi sequences.
文摘In this paper, we consider the Cauchy numbers and polynomials of order k and give some relation between Cauchy polynomials of order k and special polynomials by using generating functions and the Riordan matrix methods. In addition, we establish some new equalities and relations involving high-order Cauchy numbers and polynomials, high-order Daehee numbers and polynomials, the generalized Bell polynomials, the Bernoulli numbers and polynomials, high-order Changhee polynomials, high-order Changhee-Genocchi polynomials, the combinatorial numbers, Lah numbers and Stirling numbers, etc.
文摘In this paper, by the classical method of Riordan arrays, establish several general involving higher-order Changhee numbers and polynomials, which are related to special polynomials and numbers. From those numbers, we derive some interesting and new identities.
文摘Let the numbers be defined by , where and are the exponential complete Bell polynomials. In this paper, by means of the methods of Riordan arrays, we establish general identities involving the numbers , binomial coefficients and inverse of binomial coefficients. From these identities, we deduce some identities involving binomial coefficients, Harmonic numbers and the Euler sum identities. Furthermore, we obtain the asymptotic values of some summations associated with the numbers by Darboux’s method.
文摘With more emphasis on the communicative and pragmatic function of Business English learning, the author discusses a case study of a Business English course based on projects conducted by the students in their community This curriculum aims at students experiencing and implementing their knowledge of Business and English in the real business environments, engaging community in the process, and avoiding isolation and separation of business English teaching and learning from communities. The research lays more importance on the students＇ experiencing and participating process by providing them with a series of guidelines as reference and assessment, but meanwhile the students have their freedom of choices and decision-making in many aspects. Integrative skills are practiced including linguistic skills, business-related skills, communicative skills, and technology-related skills. Specifically, the students are required to conduct a mini market research in their community. The topic of the research is negotiated, classified, and grouped in the entire class until each individual student belongs to a group. The project procedure and requirements are given to the students on weekly basis, including field of research, questionnaire, data collection and analysis, report, and the final group presentation. Based on their experience from the research, the students write down their reflections. Based on the observation of the instructor and students＇ feedback, the research found that students＇ expectations and teacher＇s roles varied in a number of aspects. A variety of knowledge and skills have been practiced. Problems have also been found in each step of the project.
