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Ditemukan 2488 dokumen yang sesuai dengan query
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Griffiths, David Francis
"Why do you need to learn LATEX? LATEX has become an extremely popular typesetting system and is widely used throughout the sciences. As a student you may need to typeset reports and theses in LATEX (particularly if you are a graduate student in any mathematics or computer science discipline). Or you may be someone who had planned to "eventually" get around to learing LATEX, but you are still using older systems and methods of typesetting. Procrastinate no more!
The authors have elected to cover LATEX 2e, the latest standard version at the time of publication. The old and new versions are very similar and it is clear that the LATEX 2e will soon dominate. An appendix discusses the differences between 2e and the older version 2.09.
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Philadelphia : Society for Industrial and Applied Mathematics, 1997
e20443101
eBooks  Universitas Indonesia Library
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Dongen, M.R.C. van
"This book teaches all the ins and outs of LaTeX which are needed to write an article, report, thesis, or book. The book teaches by example, giving many worked out examples showing input and output side by side. The book presents the most recent techniques for presenting data plots, complex graphics, and computer presentations, but does not require previous knowledge. "
Berlin: Springer-Verlag, 2012
e20407978
eBooks  Universitas Indonesia Library
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Faure, Edgar
Paris: Unesco, 1973
370 Fau l
Buku Teks  Universitas Indonesia Library
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Faure, Edgar
Paris: Unesco, 1973
370 Fau l
Buku Teks  Universitas Indonesia Library
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Kiki Rusmin Sadrach
1986
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UI - Skripsi Membership  Universitas Indonesia Library
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"Rubber clones of Indonesian Rubber Research (IRR) 200 series have been produced from intensive breeding program started in 1985. Some clones showed superior characteristics such as high latex yielding, vigorous, and disease resistant. This study aimed to test their performances in a field trial conducted since 1999 at Sungei Putih Experimental Garden, North Sumatra. The experiment was designed in a randomized block, using twelve IRR clones as treatment and PB 260 clone as control, three replications. Planting distance was 5 m x 4 m and plot size was 10 rows x 50 trees. Observations were made on girth size of the 2, 3 and 4 year-old trees, dry rubber yield following the 1/2S d/2 and 1/2S d/3.ET2.5% tapping systems, bark thickness, rings number and diameter of latex vessels, as well as leaf fall diseases intensities of 3-5 year-old trees. The results showed four IRR 200 clones, i.e. IRR 207, IRR 208, IRR 211 and IRR 220 produced high latex. Using the 1/2S d/2 tapping system, three clones with highest dry rubber yield were obtained, namely IRR 208 (49.8 g tree-1 tapping-1 or g t-1 t-1), IRR 211 (48.8 g t-1 t-1) and IRR 220 (52.0 g t-1 t-1), whereas that using the 1/2S d/3. ET2.5% tapping system, their yields were 63.2 g, 64.3 g, and 66.2 g t-1 t-1, respectively. At four year-old, these clones had girth size of 41.4-51.0 cm, girth increment 9.7-11.6 cm year-1, bark thickness 6.3-7.2 mm, latex vessel rings number 6.8-7.0, and diameter of latex vessels 23.75-26.57 mm. All of the clones were moderately resistant to Colletotrichum, Oidium and Corynespora leaf fall diseases. This study suggests that IRR 207, IRR 208, IRR 211 and IRR 220 rubber clones are suitable for commercial stake holders and the recommended tapping system is 1/2S d/3.ET2.5%."
IJAS 13:2 (2012)
Artikel Jurnal  Universitas Indonesia Library
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Cahya Widiyati
"The land area and production of rubber on smallholder rubber plantations contribute to about 85% and 81% of national rubber production, respectively. Based on this, having technology to utilize vulcanized natural rubber latex (NRL) in a way that is simple, inexpensive, energy-saving, environmentally friendly, and according to the quality standards of the processing of NRL is important. The purpose of the current research is to design of a prototype photoreactor ultraviolet light-emitting diodes (UV-LEDs) for the vulcanization of NRL that is irradiated (VNRLI) to produce NRL-irradiated free carcinogens and protein allergens. The methodology used is the technological development of a prototype photoreactor with an UV-mercury irradiator that located in a vertical cylindrical glass column with the capacity of VNRLI about 249.2 tons/year. The development of technologies applied to increase the capacity of VNRLI by enlarging the area of thin NRL films to be irradiated with UV-A rays derived from UV-LED irradiators that are more energy-efficient, long-life, and environmentally friendly than UV-mercury irradiators. The results allowed for the design of a prototype photoreactor UV-LEDs to process feed NRL with the capacity VNRLI about 522 tons/year. The UV-LED photoreactor prototype design results show that the UV-LED photoreactor prototype is ready to test the VNRLI process function that can produce NRL- irradiated free carcinogen and protein allergens."
Depok: Faculty of Engineering, Universitas Indonesia, 2018
UI-IJTECH 9:1 (2018)
Artikel Jurnal  Universitas Indonesia Library
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Muhammad Fachrurozy Al-Firdaus
"Microvascular anastomosis adalah salah satu teknik teknik bedah mikro menantang yang membutuhkan proses pembelajaran panjang untuk menguasainya. Karena tingkat kompleksitasnya, kemampuan microvascular anastomosis tidak bisa didapatkan dengan cara melakukan observasi ahli bedah yang sudah berpengalaman. Latihan operasi berskala mikro membutuhkan sumberdaya latihan dan waktu yang cukup. Tujuan dari makalah ini adalah untuk mengevaluasi face validity dari model microvascular berbahan dasar latex yang dapat berfungsi sebagai alternatif bebas-hewani untuk dimasukkan ke dalam pelatihan bedah mikro awal untuk mengganti, memperbaiki dan mengurangi penggunaan model-model hewan di pelatihan bedah mikro. Penelitian ini dilakukan menggunakan studi literasi dari beberapa simulator dan ide yang sudah ada, lalu diawali dengan menentukan desain cetakan untuk memproduksi replika microvascular berbahan dasar latex. Hasil penelitian ini menunjukkan bahwa model microvascular berbahan dasar latex bisa menjadi pengganti yang berguna untuk penggunaan model hewan terutama pada tahap dasar pelatihan simulasi bedah mikro.

Microvascular anastomosis is a microsurgery technique that requires a long learning process to master it. Because of the degree of difficulty, the ability of microvascular anastomosis cannot be obtained by observing experienced surgeons. Micro-scale operations training requires sufficient training resources and time. The purpose of this paper is to approve the face validity of a latex-based microvascular model that can be used as an animal-free alternative to be included in the initial microsurgery training to replace, refine and reduce animal models in micro surgery training. This research was conducted using a literacy studio of several simulators and existing ideas, then beginning with determining the mold design to produce microvascular replicas based on latex. The results of this study indicate that the latex-based microvascular model can be useful for the use of basic animal models in basic installations"
Depok: Fakultas Teknik Universitas Indonesia, 2020
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UI - Skripsi Membership  Universitas Indonesia Library
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Muhammad Abizar Yusa Alfiando
"Indonesia merupakan negara dengan areal perkebunan karet terluas di dunia dengan luas mencapai 3,4 juta hektar dengan tingkat produksi mencapai 1 juta ton per hektar. Sebesar 55 karet alam yang dihasilkan digunakan oleh industri manufaktur ban. Industri ban di Indonesia merupakan salah saru komuditas ekspor yang menjajikan dengan nilai mencapai US 1,6 milyar pada tahun 2014. Dalam upaya untuk lebih meningkatkan daya saya produk ban di pasar internasional maka dilakukanlah pengembangan teknologi ban, salah satunya adalah modifikasi dari bahan baku ban. Karet alam sebagai bahan baku ban memiliki elastisitas dan kekuatan tarik yang baik, tetapi memiliki nilai modulus kekakuan yang rendah. Salah satu upaya mengatasinya adalah dengan menambahkan additif pada proses manufaktur ban. Starch yang banyak ditemukan pada tumbuhan-tumbuhan hijau memiliki nilai modulus kekakuan yang lebih baik dari pada karet alam, sehingga dapat digunkan sebagai additif yang tepat untuk ban. Tetapi starch yang merupakan unsur polar akan sulit untuk dicampurkan dengan karet alam yang merupakan unsur non-polar. Salah satu metode yang dapat digunakan untuk menyatukannya adalah dengan menggunakan glow discharge electrolysis plasma GDEP yang menghasilkan energi tinggi pada prosesnya sehingga dapat memicu terbentuknya ikatan. Proses grafting dengan mengunakan metode GDEP ini antara karet alam yang masih dalam bentuk emulsi atau yang lebih dikenal dengan sebutan latex dengan starch diharapkan akan menghasilkan ikatan eter C-O , sehingga akan meningkatkan kompatibilitas dari additif. Proses GDEP dilakukan dengan menggunakan variasi waktu t 5, 10, dan 15 menit serta variasi tegangan V 612.9 V, 658.3 V, dan 703.7 V. Kemudian produk latex-starch hibrida dikarakterisasi dengan menggunakan pengujian FT-IR, sessile drop, STA, dan persen yield. Dari hasil pengujian ini dapat diketahui bahwa proses grafting antara latex dan starch dapat menghasilkan produk latex-starch hibrida yang ditunjukan dengan munculya ikatan eter C-O dari hasil pengujian FT-IR. Produk yang dihasilkan memiliki sifat permukaan yang hidrofilik, selain itu juga memiliki nilai tegangan permukan yang lebih tinggi dari latex sehingga kompatibilitasnya sebagai additif juga baik dengan stabilitas termal yang serupa dengan latex. Pada proses sintesisnya ditemukan waktu t dan tegangan optimum untuk menghasilakn produk yang efisien adalah 10 menit dan 658.3 V secara berturut-turut.

Indonesia as the biggest natural rubber plantation in the world have 3.4 million hectare plantation with production capacity 1 million ton per hectare. 55 natural rubber form indonesia used by tire manufacture industry. Tire industry in Indonesia is one of promised export comodity with the value reach US 1.6 billion in 2014. To improve the competitivenes tire form Indonesia in the international market, the technolgy of tire have to improve too. One of the methode is modification the raw material of tire. Natural rubber as the raw material have good elsticity and tensile strength, but it have low stiffnes modulus. So additive must be added to improve this properties. Starch with good stiffnes modulus property is one of the choice to be used as a tire additive. But starch is polar and it can not be mixed with non polar natural rubber. Glow discharge electrolysis plasma GDEP that produce high energy is used as a method to bond between starch and latex as an emulsion phase of nutural rubber. Hybrid latex starch is produced by grafting latex with starch using GDEP method and they are conected by ether C O bonding, so it can improve the compatiblity between tire additive and natural rubber. The GDEP procces were used time V variation of 5, 10, 15 minute and voltage V variation of 612.9 V, 658.3 V, and 703.7 V. Hybrid latex starch product were characterizized using FT IR, sessile drop test, STA, and yield percent anlysis methode. Eters bonding C O between starch and latex in hybrid latex starch was founded in FTIR data. The product have a good hidrofilicity properties and the surface tension is higher than latex, so the compatiblity was improved when it using as a tire additive with same thermal stablity as natural rubber. In the synthesis procces was founded there is an optimum time and voltage to produced a good product in 10 minute and 658.3 V respectively."
Depok: Fakultas Teknik Universitas Indonesia, 2018
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UI - Skripsi Membership  Universitas Indonesia Library
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