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Hasil Pencarian

Ditemukan 140 dokumen yang sesuai dengan query
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Hans
"Tesis ini membahas kemampuan mahasiswa Magister Manajemen Universitas Indonesia dengan konsentrasi Manajemen Operasi angkatan 2012 dalam melakukan analisis demand forecast dengan tepat dan rasional, lalu memformulasi dan membuat keputusan dan/atau kebijakan melalui aggregate production planning sebagai solusi agar rencana proses produksi di PT Rackindo Setara Perkasa dapat berjalan dengan lebih optimal, efisien, efektif, dan tanggap terhadap perubahan-perubahan yang ada di masa mendatang, terutama dari aspek waktu, material, tenaga kerja, ruang/fasilitas, dan bermuara di total biaya yang diperlukan. Karya akhir ini adalah penelitian kuantitatif dengan desain deskriptif.
Hasil penelitian menyarankan bahwa perusahaan sudah harus menggunakan analisis kuantitatif yang mendalam untuk mendasari pengambilan keputusan dalam area manajerial agar perusahaan dapat berjalan dengan lebih optimal, efisien, dan efektif.Tiga produk yang digunakan sebagai contoh perhitungan telah memberikan hasil yang revolusioner karena membuat perusahaan dari rugi menjadi laba.

This thesis discusses the ability of students of Master of Management, University of Indonesia with a concentration in Operations Management class of 2012 in analyzing appropriate and rational demand forecast, then formulate and make decisions and/or policies through the aggregate production planning as a solution in order to plan the production process in PT Rackindo Setara Perkasa runs with more optimal, efficient, effective, and responsive to changes in the future, especially from the aspect of time, materials, labor, space/facilities, and end in the total cost required. This thesis is a descriptive quantitative research design.
The results of the study suggest that the company has to use quantitative analysis to underlying managerial decision making so that the company can run more optimal, efficient, and effective.Three products used as ansampling calculation was revolutionary because the results turn company from loss into making profit.
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Jakarta: Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Hans
"[Dewasa ini, teknologi berkembang dengan sangat pesat, salah satu contoh teknologi yang sedang marak beberapa tahun belakangan ini adalah 3D face recognition. Teknologi ini menggabungkan data biometrik berupa wajah orang yang diambil dari beberapa sudut (horizontal dan vertikal) dan jaringan saraf tiruan. Untuk memperbaiki tingkat rekognisi yang rendah pada saat menggunakan data crisp, maka digunakanlah metode fuzzy. Percobaan akan dilakukan sebanyak tiga kali karena terdapat tiga cluster yang masing-masing cluster terdiri dari beberapa set orang. Pertama-tama, data akan diolah secara bertahap pada fase fuzzification dimulai dari parameter ekspresi, orang, dan sudut. Tahapan selanjutnya adalah membuat referensi pada fase fuzzy manifold untuk kemudian digunakan pada fase fuzzy nearest distance. Pada fase fuzzy nearest distance akan dicari jarak terpendek dari data testing dengan referensi yang sudah ada. Hasil keluaran dari sistem ini adalah kombinasi sudut horizontal dan vertikal dari tiap-tiap cluster yang nantinya akan dimasukkan kedalam Jaringan Saraf Tiruan (JST) dengan lapis tersembunyi berstruktur hemisfer untuk mendapatkan tingkat rekognisi. Secara keseluruhan rata-rata tingkat rekognisi setiap cluster sudah bisa mencapai 80%. Hal ini menunjukkan sistem sudah cukup optimal dalam mengenali pola wajah yang ada.
;The development of technology is growing rapidly, one of the examples of the technology that is emerging in recent years is 3D face recognition. This technology combines biometric data in form of faces which are taken from several angles (combination of horizontal and vertical angles) and artificial neural network. In order to improve the low recognition rate from crisp data, fuzzy method is used. The experiment will be performed three times because there are three cluster which are consist of several set of person. Firstly, the data will be processed step by step in fuzzification phase starting from the level of expression continued with the level of face and lastly is the level of person. With the use fuzzification, the crisp data can be converted into fuzzy. The next step is to make references in fuzzy manifold phase in order to be used in fuzzy nearest distance phase. In fuzzy nearest distance phase, the shortest distance between the testing data the references will be processed in artificial neural network with hemispheric structured hidden layer. Generally, the average of the all recognition rate can reach up to 80% which means that the system can recognize the face pattern quite good.
;The development of technology is growing rapidly, one of the examples of the technology that is emerging in recent years is 3D face recognition. This technology combines biometric data in form of faces which are taken from several angles (combination of horizontal and vertical angles) and artificial neural network. In order to improve the low recognition rate from crisp data, fuzzy method is used. The experiment will be performed three times because there are three cluster which are consist of several set of person. Firstly, the data will be processed step by step in fuzzification phase starting from the level of expression continued with the level of face and lastly is the level of person. With the use fuzzification, the crisp data can be converted into fuzzy. The next step is to make references in fuzzy manifold phase in order to be used in fuzzy nearest distance phase. In fuzzy nearest distance phase, the shortest distance between the testing data the references will be processed in artificial neural network with hemispheric structured hidden layer. Generally, the average of the all recognition rate can reach up to 80% which means that the system can recognize the face pattern quite good.
, The development of technology is growing rapidly, one of the examples of the technology that is emerging in recent years is 3D face recognition. This technology combines biometric data in form of faces which are taken from several angles (combination of horizontal and vertical angles) and artificial neural network. In order to improve the low recognition rate from crisp data, fuzzy method is used. The experiment will be performed three times because there are three cluster which are consist of several set of person. Firstly, the data will be processed step by step in fuzzification phase starting from the level of expression continued with the level of face and lastly is the level of person. With the use fuzzification, the crisp data can be converted into fuzzy. The next step is to make references in fuzzy manifold phase in order to be used in fuzzy nearest distance phase. In fuzzy nearest distance phase, the shortest distance between the testing data the references will be processed in artificial neural network with hemispheric structured hidden layer. Generally, the average of the all recognition rate can reach up to 80% which means that the system can recognize the face pattern quite good.
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Fakultas Teknik Universitas Indonesia, 2015
S62379
UI - Skripsi Membership  Universitas Indonesia Library
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Hans
"Biodiesel adalah bahan bakar nabati sebagai alternatif bahan bakar fosil yang mengandung metil ester asam lemak dan memiliki banyak keunggulan. Akan tetapi, biodiesel memiliki kelemahan yaitu rentan terhadap oksidasi karena adanya ikatan rangkap pada struktur asam lemak penyusunnya. Salah satu aditif antioksidan biodiesel yang paling efektif adalah pyrogallol. Akan tetapi, pyrogallol memiliki kelemahan yaitu kelarutan yang rendah dalam minyak. Untuk itu telah dikembangkan turunan pyrogallol melalui reaksi antara pyrogallol dan methyl linoleate dengan menggunakan radikal 2,2-diphenyl-1-picrylhydrazyl atau DPPH. Hasil penelitian menunjukkan bahwa methyl linoleate dan pyrogallol bereaksi membentuk turunan pyrogallol yang lebih larut dalam biodiesel. Akan tetapi,
penggunaan methyl linoleate murni tidak ekonomis karena memiliki harga yang tinggi. Pada penelitian ini, biodiesel minyak biji bunga matahari dengan 54.13% methyl linoleate yang telah diuji oleh GCMS digunakan untuk mensintesis turunan
pyrogallol dengan rasio 10 ml biodiesel, 5 ml DPPH, dan 5 ml pyrogallol. TLC, FTIR, dan LCMS/MS digunakan untuk menentukan keberadaan senyawa turunan pyrogallol. Pada hasil TLC terdapat spot baru yang memiliki perbedaan ketinggian spot antara senyawa turunan pyrogallol dengan pyrogallol yang menunjukkan
perbedaan polaritas dari keduanya. FTIR menunjukkan adanya pergeseran peak pada 1240 cm-1 yang menunjukkan terbentuknya senyawa turunan pyrogallol. LCMS/MS menunjukkan adanya senyawa dengan berat molekul yang terdiri dari methyl linoleate dengan pyrogallol. UV-Vis dari senyawa turunan pyrogallol
menunjukkan bahwa senyawa tersebut lebih larut dalam biodiesel dibandingkan
dengan pyrogallol. Karakteristik stabilitas oksidasi diuji dengan bilangan iodin dan
periode induksi. Penambahan turunan pyrogallol sebanyak 2000ppm ke dalam
biodiesel dapat menghambat penurunan bilangan iodin dan meningkatkan periode
induksi sebesar 0,75 jam.

Biodiesel is renewable plant-based fuel as an alternative for fossil fuel containing
fatty acid methyl esters and also has many advantages. However, biodiesel has the
disadvantage of oxidation instability because of the double bonds in the constituent
fatty acid structures. One of the most effective antioxidant for biodiesel is
pyrogallol. Unfortunately, pyrogallol has a low solubility in biodiesel. Subsequent
research was developed by synthesizing pyrogallol derivative through the reaction
between pyrogallol and a pure methyl linoleate using 2,2-diphenyl-1-picrylhydrazyl
or DPPH as catalyst. The results showed that the pyrogallol derivative formed was
more soluble in biodiesel. However, the use of pure methyl linoleate is not
economical because it has a high selling price. In this research, sunflower oil
biodiesel with 54.13% methyl linoleate which has been tested by GCMS used to
synthesize pyrogallol derivative with ratio of 10 ml biodiesel, 5 ml DPPH, and 5 ml
pyrogallol. TLC, FTIR, and LCMS/MS were used to determine the presence of
pyrogallol derivative compounds. TLC shows a new spot marked by the difference
of height between pyrogallol and pyrogallol derivative which has a different
polarity. FTIR shows a different peak at 1240 cm-1 which shows the formation of
pyrogallol derivative. LCMS-MS indicates a possible molecular weight consisting
of methyl linoleate and pyrogallol. UV-Vis of the derivatives in biodiesel shows
that the derivative is more soluble in biodiesel in comparison with the solubility of
pure pyrogallol. Iodin number and Rancimat were also tested to find out the
oxidation stability. Addition 2000ppm pyrogallol derrivative to biodiesel can
inhibit the decrease on iodine number and increase the induction period up to 0.75
hours.
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Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
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UI - Skripsi Membership  Universitas Indonesia Library
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Adler, Hans A.
Jakarta: Universitas Indonesia (UI-Press), 1983
338.7 ADL e
Buku Teks  Universitas Indonesia Library
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Bethe, Hans A.
California: Benjamin/Cummings, 1986
530.12 BET i
Buku Teks SO  Universitas Indonesia Library
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Kelsen, Hans
Bandung: Alumni, 2002
340.1 KEL h
Buku Teks SO  Universitas Indonesia Library
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Bertens, Hans
London: Taylor & Francis Group, 2008
801.95 BER l
Buku Teks SO  Universitas Indonesia Library
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Beyer, Hans
[Place of publication not identified]: [Publisher not identified], [Date of publication not identified]
547 BEY o
Buku Teks  Universitas Indonesia Library
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Freudenthal, Hans
New York: Academic Press, 1987
512.86 FRE l
Buku Teks SO  Universitas Indonesia Library
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Ziegler, Hans
Massachusetts: Addison-Wesley, 1965
531 ZIE m
Buku Teks SO  Universitas Indonesia Library
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