1,721,023 research outputs found
PengaruhPenggunaan Bahan Bakar Premium, Pertamax dan Pertamax Plus terhadap Konsumsi Bahan Bakar dan Emisi Gas Buang untuk Beban Konstan pada Generator Set Mesin Bensin 4 Langkah
No full textABSTRACT Nugroho, Faisal Arif. 2015. Pengaruh Penggunaan Bahan Bakar Premium,Pertamax dan Pertamax Plus terhadap Konsumsi Bahan Bakar danEmisi Gas Buang untuk Beban Konstan pada Generator Set MesinBensin 4 Langkah. Skripsi. Jurusan Teknik Mesin, Fakultas Teknik,Universitas Negeri Malang. Pembimbing: (I) Drs. H. Imam MudaNauri, ST .MT. (II) Drs. Ir. Mustaman, M.pd.Kata Kunci: Bahan Bakar Premium, Pertamax, Pertamax Plus, Konsumsi BahanBakar, Emisi Gas Buang CO, Emisi Gas Buang HC.Pertumbuhan industri skala kecil dan menengah berkembang mewarnaiperekonomian di daerah, dimana keberadaannya menjadi salah satu solusi dalammengatasi angka penggangguran sekaligus menggerakkan roda perekonomiandaerah. Dalam insdustri kecil generator juga memegang peranan yang sangatpenting dalam pembangkit listrik dan penyaluran tenaga listrik pada suatu sistemtenaga listrik. Perkembangan sektor industri akan berdampak pada pemakaiansumber daya alam yang ada, akan tetapi kegiatan industri ini juga berpotensimenimbulkan dampak negatif yaitu adanya polusi akibat proses produksi ataumenghasilkan emisi gas buang. Dalam mengontrol memperkecil keluarnya gasbuang pada gas buang generator set salah satunya dilakukan dengan pemilihanyang tepat pada penggunaan jenis bahan bakar. Kurang difahami juga bahwamesin generator 4 langkah ini kebanyakan menggunakan bahan bakar premium,sementara dengan adanya bahan bakar pertamax dan pertamax plus memilikikandungan oktan yang lebih tinggi dibanding bahan bakar premium, yang dapatmenghasilkan pembakaran yang sempurna dan tenaga yang lebih besar sehinggadidapatkan pula kandungan emisi gas buang yang rendah.Penelitian ini menggunakan jenis metode eksperimen. Analisa yangdigunakan dalam penelitian ini adalah Analisis deskriptif dan untuk uji hipotesismenggunakan Uji hipotesis ini dilakukan dari 2 arah ( significant 2 tailed) dengansig 0,05 dengan melakukan uji normalitas dan homogenitas terlebih dahulu sertadiakhiri menggunakan post hoc test melalui aplikasi spss 20 for windows.Hasil penelitian menunjukan bahwa ada perbedaan yang signifikan dalampenggunaan variasi jenis bahan bakar premium, pertamax dan pertamax plusterhadap konsumsi bahan bakar, ada perbedaan yang signifikan dalampenggunaan variasi jenis bahan bakar premium, pertamax dan pertamax plusterhadap emisi gas buang CO, sedangkan pada uji emisi gas buang HC jugaterdapat perbedaan yang signifikan dalam penggunaan variasi bahan bakarpremium, pertamax dan pertamax plus terhadap emisi gas buang HC. Saran untukpara produsen yang menggunakan bahan bakar di pasaran, agar penggunaan bahanbakar lebih efisien dan lebih ramah lingkungan maka gunakanlah bahan bakarpertamax plus.iiABSTRACT Nugroho, Faisal Arif. 2015. The Effect Of Using Premium, Pertamax andPertamax Plus Gasoline On Fuel Consumption and Exhaust GasEmissions To A Constant Load On The Generator Set 4 Stroke GasolineEngine. Essay. Department of Mechanical Engineering, Faculty ofEngineering, University of Malang. Advisors : (I) Drs. H, Imam MudaNauri, ST. MT. (II) Drs. Ir. Mustaman, M.pd.Keywords : Fuel Premium, Pertamax, Pertamax Plus, Fuel Consumption,Emissions CO, HC Emissions.The growth of small and medium scale industry develops decorating theregional economy, where its presence is a solution in overcoming theunemployment rate at the same time move the wheels of the regional economy. Ina small insdustry generator also plays a very important role in electricitygeneration and distribution of electricity in a power system. The development ofthe industrial sector will have an impact on the use of natural resources that exist,but industrial activity is also a potential negative impact that pollution due to theproduction process or exhaust emissions. In controlling minimize discharge offlue gases in the flue gas generator sets one of which is done by selecting the righttype of fuel in use. Less understood also that the engine generator 4 step is mostlyusing premium fuel, while the presence of fuel pertamax and pertamax pluscontains a higher octane fuel than premium, which can result in completecombustion and more power so we get too content low exhaust emissions.This research used experimental method. The analysis used in thisresearch was descriptive analysis and hypothesis testing using a test for thishypothesis was conducted from two directions (significant 2-tailed) with sig 0.05to test the normality and homogeneity in advance and terminated used a post hoctest through SPSS 20 for aplication windows.The results showed that there were significant differences in the use ofvariations in the type of premium fuel, pertamax and pertamax plus on fuelconsumption, there was significant difference in the use of variations in the typeof premium fuel, pertamax and pertamax plus for exhaust emissions of CO, whilein the test HC exhaust emissions there were also significant differences in the useof premium fuel variation, pertamax and pertamax plus the HC exhaust emissions.Suggestions for producers who use fuel in the market, so that the use of more fuel efficient and more environmentally friendly fuel then use pertamax plu
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
Potensi Pantai dan Persepsi Pengunjung terhadap Sapta Pesona Objek Wisata Pantai Teleng Ria Kecamatan Pacitan Kabupaten Pacitan
No full textABSTRAK Setiawan, Faisal Arif. Potensi Pantai dan Persepsi Pengunjung terhadap Sapta Pesona Objek Wisata Pantai Teleng Ria Kecamatan Pacitan Kabupaten Pacitan. Skripsi, Jurusan Geografi, Fakultas Ilmu Sosial, Universitas Negeri Malang. Pembimbing: (I) Drs. Marhadi Slamet Kistiyanto, M.Si. (II) Satti Wagistina, S.P., M.Si. Kata kunci: indeks kesesuaian wisata, daya dukung, persepsi pengunjung Pantai Teleng Ria merupakan salah satu objek wisata unggulan di Kabupaten Pacitan. Peran Pantai Teleng Ria adalah sebagai salah satu sumber Pendapatan Asli Daerah (PAD), merasa sebagai penyumbang utama PAD maka pihak pengelola pantai melakukan pembangunan berbagai sarana prasarana. Namun pembangunan tersebut jika tidak memperhatikan aspek lingkungan akan menjadi masalah tersendiri. Estimasi terhadap daya dukung kawasan merupakan langkah tepat untuk menilai kemampuan lingkungan menerima populasi maksimum pengunjung agar kelestariannya tetap terjaga. Banyaknya potensi yang ada belum dimanfaatkan secara optimal untuk pengembangan pariwisata. Oleh karena itu perlu adanya penelitian lebih lanjut dalam menggali segala potensi pada objek wisata Pantai Teleng Ria Kabupaten Pacitan. Penelitian ini dikhususkan pada potensi pantai dan persepsi pengunjung terhadap sapta pesona objek wisata tersebut. Penelitian ini bertujuan untuk 1) Mendeskripsikan potensi yang dimiliki Pantai Teleng Ria. 2) Mengetahui persepsi pengunjung terhadap sapta pesona objek wisata Pantai Teleng Ria. Jenis penelitian merupakan penelitian deskriptif kuantitatif. Objek penelitian adalah Pantai Teleng Ria dengan subjek penelitian adalah wisatawan. Data primer berasal dari pengukuran dan observasi. Data sekunder dari dinas-dinas terkait. Penentuan jumlah sampel menggunakan nonprobability sampling sebanyak 100 responden dengan pemilihan sampel menggunakan metode accidental sampling. Teknik pengambilan data menggunakan metode observasi, kuesioner dan dokumentasi. Analisis data potensi pantai menggunakan rumus indeks kesesuaian wisata dan daya dukung. Sedangkan persepsi pengunjung terhadap Sapta Pesona menggunakan skoring dan tabulasi tunggal. Berdasarkan hasil analisis tersebut diperoleh dua simpulan hasil peneitian sebagai berikut. Pertama, potensi Pantai Teleng Ria memiliki indeks kesesuaian wisata kriteria S1 yaitu tidak ada faktor pembatas yang menghalangi sebagai kawasan wisata. Estimasi daya dukung pantai berpasir di kawasan Pantai Teleng Ria termasuk kategori kelas rendah. Jumlah pengunjung yang diperbolehkan untuk aktivitas berenang adalah 48 orang, berjemur 60 orang, rekreasi pantai 60 orang, wisata olahraga 60 orang, memancing 60 orang, dan berkemah 115 orang. Kedua, persepsi pengunjung terhadap Sapta Pesona yang terdiri dari unsur aman, tertib, bersih, sejuk, indah, ramah dan kenangan termasuk dalam kategori sangat sesuai untuk pariwisata. Sedikit kekurangan terletak pada kebersihan dan ketertiba
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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