1,721,292 research outputs found
PENGARUH KESEHATAN DAN KESELAMATAN KERJA TERHADAP KINERJA KARYAWAN PADA PT. CHUN WAN INDUSTRY
Get PDFDalam menghadapi dinamika dunia kerja, perusahaan kini semakin menyadari pentingnya penerapan praktik kesehatan dan keselamatan kerja (K3) sebagai bagian dari strategi manajemen. Adanya Permasalahan belum optimalnya implementasi sistem kesehatan dan keselamatan kerja (K3) di lingkungan perusahaan. Riset ini bertujuan guna menganalisa pengaruh kesehatan serta keselamatan kerja pada kinerja pegawai PT. Chun Wan Industry. Riset ini memanfaatkan metode kuantitatif dengan deskriptif verifikatif. Populasi riset ini yakni 105. Sampel pada riset ini yakni memanfaatkan teknik sampel purpose sampling yakni sejumlah 83. Metode pengumpulan data pada riset ini dari output penyebaran kuesioner yang didapat serta pada sumber seperti, buku referensi, jurnal ilmiah serta artikel berita yang relevan. Teknik analisis data memanfatatkan Path Analisis SPSS 25. Output riset membuktikan adanya korelasi positif Kesehatan (X1) serta Keselamatan Kerja (X2) sejumlah -0,046 kategori sedang, Kesehatan (X1) secara parsial mempengaruhi positif relevan pada Kinerja Pegawai (Y). Keselamatan Kerja (X2) secara parsial mempengaruhi positif relevan pada Kinerja Pegawai (Y). Adanya pengaruh positif relevan secara simultan antara Kesehatan (X1) serta Keselamatan Kerja (X2) pada Kinerja Karyawan (Y). Perusahaan perlu meningkatkan kerjasama antar pegawai melalui kegiatan tim serta komunikasi yang baik mampu memperkuat hubungan kerja serta meningkatkan kinerja secara keseluruhan
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
CO oxidation on single metal and alloy nanoparticles supported on mesoporous silica
No full text本研究是以MCM-41作為觸媒載體，MCM-41為中孔材料，特點為表面積大（>1000 m2/g）、孔體積大（1~2 cm3/g），孔徑大小易控制（2-30 nm）等優點。而與傳統應用在一氧化碳觸媒最大不同點，為MCM-41為二氧化矽組成，而二氧化矽為惰性擔體，目前應用性較廣為活性載體，如二氧化鈦、氧化鐵等，這些擔體對於CO oxidation過程也能提供部分活性，因此，若是要針對金奈米粒子作深入探討時，活性載體便不適用3。
本研究除了金觸媒外，單金屬方面也加入了銀與銅等系統，銀和銅的成本較低，能大量應用在工業催化上。另外，金觸媒的穩定性較差，且吸附氧氣能力弱，因此，我們加入對氧氣有高親和力之金屬，與金形成合金，來提高活性。
一氧化碳氧化反應中，除了測試在空氣環境下的轉換率之外，也在富氫（rich hydrogen）下做選擇性的氧化，若是在低氧濃度，且富氫氣氛下，能對CO有高轉化率及高選擇性，在燃料電池上，會有極佳的應用性。鑑定儀器方面，主要是利用X光粉末吸收繞射來了解結構組成，及高解析穿透式電子顯微鏡，來鑑定金屬顆粒大小。在判斷合金組成方面，除了紫外光-可見光吸收光譜外，也採用同步幅射儀器：延伸X光吸收精細儀，來了解顆粒的組成與分布。第一章 導論
1.1 奈米金觸媒…………………………………………............... 1
Ⅰ. 金觸媒的催化性質…………………………………...….. 1
Ⅱ. 增進金觸媒活性..……………………………………..... 7
1.2 金觸媒應用性…………………………………...………….... 8
Ⅰ. 簡介PROX 概念………………………………………..... 9
Ⅱ. 選擇PROX 反應觸媒………………………………...….. 11
1.3 中孔洞材料………………..……………………………...….. 12
Ⅰ. 中孔洞材料…………………………………………...….. 12
Ⅱ. 表面修飾……………………………………………...….. 16
1.4 研究動機與方向……………………………………….....….. 18
第二章 實驗部分
2.1 化學藥品………………………………………………….….. 20
2.2 合成方法……………………………………………………... 22
Ⅰ. 合成奈米尺度MCM-41…………………………...…… 22
Ⅱ. 修飾奈米尺度MCM-41……………………………...….. 22
Ⅲ. 負載單金屬至MCM-41……………………………...….. 23
III
Ⅵ. 負載金銀合金至MCM-41…………………………...….. 23
a. 一步驟還原法…….……………………………...….. 23
b. 分步驟還原法…….……………………………...….. 23
2.3 鑑定方法………………………………………...………..….. 25
Ⅰ. 粉末X 光射繞儀……………………………………...….. 25
Ⅱ. 氮氣等溫吸附-脫附測量……………………………...…. 25
Ⅲ. 熱重量分析儀..…..…………………………………..…... 25
Ⅵ. 穿透電子式顯微鏡……….…………………………...…. 25
Ⅴ. 固態紫外線/可見光譜儀....…………………………...…. 25
Ⅵ. 延伸式X 光吸附精細結構.…………………………...…. 25
Ⅶ. 氣相催化活性測量…….....…………………………...…. 26
Ⅷ. 掃描式電子顯微鏡…….....…………………………...…. 27
第三章 實驗與結果與討論Ⅰ
3.1 前言…………………………..…………………...………….. 28
3.2 奈米級中孔材料的鑑定結果……..………………...……….. 31
3.3 中孔材料之表面修飾鑑定與結果…..……………...……….. 34
3.4 比較不同的還原方法……………..………………...……….. 37
3.5 預處理步驟之討論與鑑定………..………………...……….. 40
3.6 金在不同載體上的鑑定與討論…..………………...……….. 43
3.7 銀粒子覆載含鋁MCM-41 之討論與鑑定………...……….. 47
3.8 銅粒子覆載含鋁MCM-41 之討論與鑑定………...……….. 50
3.9 一步驟還原法合成金銀合金在含鋁MCM-41 上...……….. 53
3.10 分步還原法合成金銀合金在含鋁MCM-41 上….……….. 57
3.11 利用ICP-AES 所測得的金屬重………………….……….. 61
第四章 實驗與結果與討論Ⅱ
4.1 研究動機………………………………………….............….. 62
4.2 實驗設計…………………………………………...……….... 63
Ⅰ. 單金屬觸媒……………………..…………………...…… 63
Ⅱ. 合金觸媒………………………..…………………...…… 63
4.3 氣相催化反應條件與預處理步驟………………...……….... 65
4.4 空氣環境下一氧化碳轉換率……………………...……….... 67
Ⅰ. 不同載體上的金觸媒…………..…………………...…… 67
Ⅱ. 銀及銅負載在含鋁MCM-41…..…………………...…… 69
Ⅲ. 分步還原法製備金合金觸媒…..…………………...…… 71
Ⅳ. 一步還原法製備金合金觸媒…..…………………...…… 75
Ⅳ. 比較不同觸媒在空氣環境下之活性..……………...…… 76
4.5 富氫環境下一氧化碳轉換率……………………...……….... 78
Ⅰ. 純金觸媒………………………..…………………...…… 78
Ⅱ. 純銅觸媒………………………..…………………...…… 80
Ⅲ. 分步還原法製備金合金觸媒…..…………………...…… 82
Ⅳ. 比較不同觸媒在富氫環境下之活性與選擇性…...…… 86
4.5 延伸式X 光吸收精細構之鑑定…………………...……….... 87
Ⅰ. 原理介紹………………………..…………………...…… 89
Ⅱ. X 光精細結構分析……………..…………………...…… 89
第五章 結論………………………………………..…… 98
參考文獻………………………………………………....... 9
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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