1,723,409 research outputs found
Genome analysis of medicinal Ganoderma spp. with plant-pathogenic and saprotrophic life-styles
No full textKües, Ursula, Nelson, David R., Liu, Chang, Yu, Guo-Jun, Zhang, Jianhui, Li, Jianqin, Wang, Xin-Cun, Sun, Hui (2015): Genome analysis of medicinal Ganoderma spp. with plant-pathogenic and saprotrophic life-styles. Phytochemistry 114: 18-37, DOI: 10.1016/j.phytochem.2014.11.019, URL: http://dx.doi.org/10.1016/j.phytochem.2014.11.01
Liu Guo-jun (劉 国鈞) and his contribution to the modernization of libraries in China
Full text linkLiu Guo-jun, best known for his invaluable contributions to the modernization of library science in China over a period of more than 50 years, represents a great figure in his field in China. Even after his death on June 27,1980,at the age of 81,his writings have continued be edited and put into publication by his followers. Liu Guo-jun was born in Nanjing. He graduated from Jinling University, the birthplace of library science in China, and went on to graduate school in Wisconsin, where he received his Ph. D. Upon his return to China in 1925,Liu Guo-jun, then 26 years old, attained a post at Jinling University as a professor and head librarian. In the years that followed he worked in several different universities as head librarian and dean of the department of humanities as well as s professor of library science. In 1951,at the age of 52,he was called to Beijing University, a post which he gladly accepted. During the next 30 years, he devoted himself to the founding and development of the university's Department of Library Science. In grateful recognition of his innumerable contributions to their university, an elaborate funeral service was performed for him at Beijin University. In the conrse of his life he wrote more than 200 books, articles and translations, not only on the subject of library science, but on such versified topics as philosophy, literature and religion, to mention a few. His most notable contribution to his field was the introduction of the western system of libraries to China, especially the introduction of the MARC of the Library of Congress. In light of the fact that he suffered from persecution by Lin Piao and Sirenbang "the Gang of Four" during the decade of the Cultural Revolution, one cannot help but admire his strength of spirit and devotion to his work. Thus, this paper is to honor the memory of Liu Guo-jun and illustrate some of the many tributes that came his way over the more than half a century of his scholastic career, mainly by introducing his innumerable articles and books.15KJ00000075573departmental bulletin pape
Gauss-Seidel Iterative Solution of Electromagnetic Pulse Coupling to Three-Conductor Transmission Lines
Full text linkThis paper proposes a distributed analytical representation and Gauss-Seidel iterative technique (Seidel-DARIT-field), which has a faster convergence rate than the Jacobi-DARIT-field method in the simulation of electromagnetic pulse (EMP) radiated field coupling to multiconductor transmission lines (MTLs) and is more valid and accurate. The process of the first iteration in this method is similar to that in the Jacobi-DARIT-field method. At the second iteration and after, every line will be updated based on the present iteration state of other lines
Analytic Iterative Solution of Electromagnetic Pulse Coupling to Multiconductor Transmission Lines
Full text linkThis paper provides an efficient iterative solution in the frequency domain for electromagnetic pulse (EMP) radiated field coupling to multiconductor transmission lines (MTLs) based on distributed analytical representation of the exciting sources and iterative technique originated from waveform relaxation. The method consists of two kinds of iterations, the first is that the incoming EMP wave couples to each conductor while the effects of neighboring conductors were neglected; the second is that each conductor will be not only subject to the illumination of the EMP wave, but also influenced by the virtual sources which are the induced voltages and currents of the neighboring conductors at the previous iteration. The key highlights of the proposed method are that the induced voltage and current at each iteration are considered as the virtual distributed exciting sources for next iteration, and the integrals were solved analytically by the Baum-Liu-Tesche equation, leading to a pretty good efficiency and quick convergence for most real cases. The validation results over a wide range show that the proposed method could efficiently handle EMP coupling to MTLs with a large number of conductors and the accuracy of the solutions is closely related to the number of iterations allowing the flexibility to choose between the accuracy and the time cos
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Distributed Energy Trading in Microgrids: A Game-Theoretic Model and Its Equilibrium Analysis
No full textThis paper proposes a distributed mechanism for energy trading among microgrids in a competitive market. We consider multiple interconnected microgrids in a region where, at a given time, some microgrids have superfluous energy for sale or to keep in storage facilities, whereas some other microgrids wish to buy additional energy to meet local demands and/or storage requirements. Under our approach, sellers lead the competition by independently deciding the amount of energy for sale subject to a tradeoff between the attained satisfaction from the received revenue and that from the stored energy. Buyers follow the sellers' actions by independently submitting a unit price bid to the sellers. Correspondingly, the energy is allocated to the buyers in proportion to their bids, whereas the revenue is allocated to the sellers in proportion to their sales. We study the economic benefits of such an energy trading mechanism by analyzing its hierarchical decision-making scheme as a multileader-multifollower Stackelberg game. We show that distributing the energy based on a well-defined utility function converges to a unique equilibrium solution for maximizing the payoff of all participating microgrids. This game-theoretic study provides an incentive for energy trading among microgrids in future power grids
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