1,720,979 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
The Study of Key Factors for Wind Power Construction Projects
No full text為了管制二氧化碳等溫室氣體排放以減緩氣候急劇變遷，世界各國紛紛加速推動再生能源研究、發展與應用，使得再生能源產業於1990年左右開始蓬勃發展，其中風力發電是技術上最成熟、最具商業化發展前景的再生能源。
台灣受限於起步時間較慢，曾參與風場評估、開發、規劃設計及施工廠商寥寥無幾，在實際執行經驗方面，與國外先進國家相比更顯得缺乏，以致於工程執行過程中，常有不可預料疏失，除造成完工期限延誤，更會引發完工運轉後設備經常停擺問題，導致發電之可靠度降低。
本研究蒐集、整理有關風力發電工程之法規、行政規則、風力發電原理、發展過程、產業現況等相關之文獻資料，探討國內風力發電工程未來可能發展趨勢及發展方向，並分析、彙整國內風力工程之成本、執行過程的程序及其期間各階段遭遇到之問題以及對工程影響，歸納整理出風電工程可能產生問題並建立其影響因素初步清單，再透過直接且深度的訪問熟稔風電工程之不同領域專家，驗證與歸納出台電公司專家認為風電工程執行過程中之關鍵因素主要為「政府決心、政策及法令」、「公部門應配合事項效率」、「承包專案團隊經驗、實績」、「風能條件佳之土地取得」、「籌設許可申請」、「國外設備廠商支援」、「承包團隊整合能力」、「風力發電機組廠牌」、「維修人員技術及培養」、「備品、零組件供應」等十項；而民營業者認為風電工程執行過程中之關鍵因素主要為「政府決心、政策及法令」、「公部門應配合事項效率」、「發電收益」、「設置成本」、「資金籌措」、「風能條件佳之土地取得」、「環境影響評估」、「國外設備廠商支援」、「風力發電機組廠牌」、「維修人員技術及培養」、「備品、零組件供應」等十一項。In order to control carbon dioxide for avoiding greenhouse effect and reducing climate change, renewable energy industry have been flourished worldwide from 1990 to speed up renewable energy research, development and applications. Therefore, wind power prospects are brightening and commercialization in the future regarding renewable energy.
Due to wind power made slow progress in Taiwan, the contractor of wind farm estimation, development, design and construction are few, construction experiences compare with developed countries to be short, so that some loss is unpredictable and delay project period, then wind turbine generator will be malfunction usually and low availability after take over.
In this paper, related literature of wind power regulation, administrative regulation, wind power generator principle, development, industrial status have been studied, and research developed trend of wind power construction in the future in Taiwan, and that analysis of construction cost, procedure, other question during the different stages of the problems on the project have been arranged into the preliminary list of key factors. There are ten (10) items as following “decision, policy and regulation of government”, “civil servant performance”, “contractor experience”, “land acquisition for optimal wind power”, “preliminary permits application”, “wind power manufacture support”, “contractor integrated ability ”,“brand-choice decisions for wind turbine generator”, “maintenance technician training” and “spare part supply”, are key factors in accordance with interview Tai-power Company experts of wind power field to be compiled, which will effect project schedule with generating benefits. Also, other domain experts think that there are eleven (11) items as following “decision, policy and regulation of government”, “civil servant performance”, “generating benefits”, “the cost of setting up”, “financing”, “land acquisition for optimal wind power”, “environmental impact assessment”, “wind power manufacture support”, “brand-choice decisions for wind turbine generator”, “maintenance technician training” and “spare part supply”
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Sum Rate Enhancement for Device-to-Device Communication with Simultaneous Transmission
No full text裝置對裝置(D2D)通訊是長期演進技術升級版(LTE-A）的技術，裝置對裝置可以再傳統的頻段上直接建立連線，裝置對裝置有著物理上近距離傳出的特性，因此會帶來高的傳輸速率、低延遲、低功率消耗等優點。然而，如果D2D與傳統的使用裝置在同一個資源塊下進行同時傳輸，共同通道的干擾將會發生，D2D會造成原系統網路傳輸表現上嚴重影響，且D2D的傳送也幾乎會失敗。因此我們提出使用髒紙編碼(DPC)來解決此問題，使用髒紙編碼可以消除傳統使用裝置對於裝置對裝置通訊接收端的干擾。我們也提出排程演算法與動態的功率分配方法來改善上傳系統的表現。藉由模擬，我們展示出所提的方法可以改善整體通訊系統的表現。Device-to-Device (D2D) communication is a technology component for
LTE-A. D2D would enable the direct communication of a device to another
device using the cellular spectrum. D2D takes advantage of the physical
proximity of communication devices, for example, high bit rate, slow delays,
low power consumption, etc. However, if D2D and cellular user equipments
(UEs) transmit in the same radio resource block (RB), co-channel interference
will occur, which may decrease performance of cellular networks, and
D2D will most likely fail. Therefore, we propose a precoding mechanism
which uses the dirty paper paper (DPC) to remove the interference from
cellular UE to D2D UE. We also propose scheduling algorithm and dynamic
power allocation mechanism to improve performance of UL systems. By simulations,
we show that the proposed mechanisms can improve performance
of the entire communication systems.1 Introduction 1
2 D2D Communication Overlaid on a Cellular Network System
Model 5
3 Algorithm Description 13
3.1 Criterion for Mode Selection . . . . . . . . . . . . . . . . . . . 17
3.2 Power Allocation . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 scheduling algorithm . . . . . . . . . . . . . . . . . . . . . . . 21
4 Simulation Results 24
4.1 Simulation Results for Scheduling Algorithm . . . . . . . . . . 26
4.2 Simulation Results for D2D Communication with Simultaneous
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . 28
5 Conclusions 3
- …
