1,720,956 research outputs found
PERFORMA MATERIAL DALAM MENYERAP PANAS DI RUSUN POLITEKNIK KELAUTAN DAN PERIKANAN SORONG
No full textMaterial peredam panas merupakan material alami atau sintetis yang diaplikasikan untuk menahan temperatur tinggi. Pada aplikasi sipil, guna mendapatkan kenyamanan dalam melakukan aktivitas sehari-hari material peredam panas banyak dipilih oleh karena kemampuan material tersebut. Di alam, banyak terkandung material peredam panas misalkan tanah, bebatuan mineral, dan lain sebagainya. Raw material tersebut, nantinya akan diolah atau dimanfaatkan langsung untuk diaplikasikan sebagai material peredam panas. Kota sorong merupakan sebuah kota yang memiliki kondisi paling kritis dan telah menjadi tantangan penting bagi banyak kota dalam permasalahan pulau panas perkotaan. Kondisi tersebut memacu timbulnya sebuah fenomena Urban Heat Island (UHI). Dalam upaya untuk mengurangi panas yang ditimbulkan, digunakan berbagai macam material untuk diaplikasikan di beberapa hal. Material tersebut diantaranya Material Beton Cor, Material Aspal, Material Tanah. Dalam penelitian ini, performa material dalam mengurangi panas ditentukan untuk ketiga material tersebut. Alat ukur yang digunakan adalah alat ukur yang umum digunakan untuk mengukur temperatur. Pengukuran dilakukan mulai dari pagi sampai malam. Hasil yang didapatkan bahwa material beton cor memiliki performa lebih baik dibanding dengan material jenis lain jika diaplikasikan sebagai atap dalam mengurangi panas. Sedangkan material aspal merupakan material yang baik jika diaplikasikan sebagai material jalan. Dengan temperatur rata-rata yang dihasilkan masing-masing material pagi = 〖32.5〗^0 C, siang = 〖60.2〗^0 C, sore = 〖34.7〗^0 C, dan malam = 〖31.0〗^0 C dan pagi = 〖30.0〗^0 C, siang = 〖33.4〗^0 C, sore = 〖29.4〗^0 C, dan malam = 〖28.5〗^0 C.</jats:p
Analysis of the Mechanical Properties of Natural Composites Matoa Tree Wood as the Foundation for Environmentally Friendly House Piles
No full textComposite materials, in simple terms, are materials that have a multi-phase system composed of reinforcing materials and matrix materials. Composite materials are divided into two types, namely synthetic composite materials and natural composite materials. Wood is a natural composite material consisting of a reinforcement and a matrix. The wood of the matoa tree (Pometia vinnata) is known for its good mechanical strength. The comparison of compressive mechanical strength in this study was conducted on matoa wood and ironwood tree wood (eusideroxylon zwageri). This was performed as supporting data in the discussion of natural composite materials of matoa tree wood as the foundation for environmentally friendly house piles. The results obtained were matoa wood and ironwood, respectively A1 = 6.07e^(-07) MPa, A2 = 1.11e^(-06) MPa, and A3 = 2.09e^(-06) MPa and B1 = 1.17e ^(-06) MPa, B2 = 2.13e^(-06) MPa, and B3 = 4.02e^(-06) MPa. These results indicated that the resistance to mechanical compression test of ironwood tree was greater than matoa tree. However, when it was seen based on the perspective of the impact on the environment, Matoa tree has environmentally friendly properties that are effective and efficient. This is supported by the nature of the matoa tree which is easy to cultivate and its roots do not damage other plants
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
KUAT TARIK BAJA TULANGAN POLOS (STUDI KASUS: PT. GHODY BIMANTARA MANDIRI)
No full textPT. Ghody Bimantara Mandiri adalah perusahaan yang bergerak di bidang pekerjaan secara umum, mulai dari perencanaan sampai kepada pelaksanaan dan bergerak di semua pekerjaan proyek konstruksi, baik bangunan gedung maupun bangunan sipil. Dalam sebuah pengerjaan pekerjaan sipil, baja tulangan banyak diaplikasikan terutama baja tulangan polos. Dalam salah satu pekerjaan, terdapat sebuah permasalahan yang membuat besi beton polos tersebut harus diujikan ulang guna mengetahui kualitas besi beton yang digunakan. Peneliti bertujuan untuk membantu menganalisis kualitas besi beton polos yang digunakan oleh perusahaan untuk mengerjakan salah satu proyek pembangunan sebuah tempat pengolahan limbah. Dalam penelitian ini, sampel yang digunakan diambil dari sampel baja tulangan yang digunakan dalam kegiatan proyek pembangunan WWTP (Wastewater Treatment Plant) PT. Etika Dairies Indonesia, pembangunan pasar modern, dan renovasi rumah. Selanjutnya dilakukan pengujian sifat mekanis yaitu pengujian tegangan leleh, pengujian kekuatan tarik dan pengujian regangan terhadap masing-masing benda uji. Kemudian dilakukan uji kesesuaian masing-masing sampel berdasarkan persyaratan SNI 2052-2017. Hasil menunjukkan nilai kuat tarik pada masing-masing sampel yang didapat yakni 600,86 , 597,99 , dan 598,84 . Hal tersebut menunjukkan sampel yang diujikan menggunakan uji tarik telah memenuhi standar SNI 2052-2017, sehingga layak digunakan untuk proyek yang akan dikerjakan.</jats:p
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
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