Judul: Sistem penunjang keputusan perencanaan agroindustri terpadu berbasis tomat di kabupaten Bogor, Jawa Barat
Abstrak: Salah satu tanaman hortikultura yang banyak dikonsumsi oleh masyarakat adalah tomat (Lycopersicum esculentum Mill). Tomat dapat dikonsumsi dalam bentuk segar maupun dalam bentuk olahan, seperti saos tomat, pasta tomat, selai tomat, manisan tomat, dan juice tomat. Permintaan terhadap komoditi tomat, baik dalam. bentuk segar maupun dalam bentuk olahan, semakin meningkat sejalan dengan bertambahnya jumlah penduduk dan meningkatnya pendapatan serta tingkat pendidikan masyarakat. Hal ini menunjukkan tingginya potensi bagi pengembangan komoditi tomat. Alternatif yang dapat dipilih dalam memanfaatkan potensi komoditi tomat adalah dengan mengembangkan suatu agroindustri terpadu berbasis tomat yang mengolah tomat segar menjadi produk olahan. Pengembangan agroindustri terpadu merupakan konsepsi yang menempatkan kegiatan pertanian dan agroindustri sebagai satuan unit usaha yang berbasis teknologi, berwawasan nilai tambah, bersifat langgeng, dan berkembang atas kemampuan daerah dengan melibatkan sejauh mungkin kelompok masyarakat. Pertanian dan industri merupakan dua sektor yang saling terkait satu sama lain, namun mempunyai karakteristik yang berbeda. Karakteristik komoditi hasil pertanian, yaitu bersifat voluminous (bulky), tergantung pada alam, bersifat musiman, mudah rusak, harga berfluktuasi secara tajam, dan pada umumnya hanya dapat menghasilkan produk secara optimal baik kualitas maupun kuantitas pada lokasi-lokasi tertentu. Sementara produk hasil suatu industri, karakteristik utamanya adalah harus ada jaminan kontinuitas bahan baku dengan kualitas yang baik, harga produk yang relatif stabil, dan fleksibilitas terhadap pengembangan diversifikasi jenis produk, dan berlokasi di sekitar pasar namun tetap dekat dengan lokasi penghasil bahan baku utama. Dengan adanya perbedaan tersebut, maka diperlukan suatu perencanaan yang sistematis dan terorganisir yang dapat membantu para pengambil keputusan (decision maker) dalam membuat perencanaan agroindustri terpadu berbasis tomat. Model sistem penunjang keputusan merupakan salah satu alternatif pemecahan yang potensial dalam mengatasi permasalahan yang ada. Tujuan pengkajian ini adalah mempelajari berbagai faktor dan parameter yang mempengaruhi perencanaan agroindustri terpadu berbasis tomat dan merancang model Sistem Penunjang Keputusan Perencanaan Agroindustri Terpadu Berbasis Tomat, khususnya di Kabupaten Bogor, Jawa Barat. Sistem Penunjang Keputusan ini dirancang dalam suatu paket perangkat lunak komputer bernama TOMEPS 1.01, yang tersusun atas Pusat Pengolahan Sistem, Sistem Manajemen Basis Data Statis, Sistem Manajemen Basis Data Dinamis, Sistem Manajemen Basis Model, dan Sistem Manajemen Dialog. Sistem Manajemen Basis Model yang merupakan inti dari TOMEPS 1.01 terdiri dari 8 sub model, masing-masing dijelaskan sebagai berikut. Sub Model Penentuan Lokasi Unggulan bertujuan untuk menentukan lokasi yang cocok dijadikan tempat bagi usahatani tomat, berdasarkan kriteria ideal untuk pertumbuhan tanaman tomat. Hasil perhitungan model ini menunjukkan bahwa lokasi unggulan tersebut adalah Kecamatan Megamendung, Cisarua, Ciawi, Cijeruk, Caringin, dan Babakan Madang…dst
Keyword: tomat, teknik heuristik, analisa regresi, agroindustri, teknik fibonaci

Judul: Sistem Penunjang Keputusan untuk Perencanaan Lokasi Agroindustri Tahu di Kabupaten Bogor, Jawa Barat
Abstrak: Soybean (Glycine max) has been known as the raw material for food products, which were coinmon to the people such as tofu, soymilk, and other soybased foods. Beside their nutrition richness, those products also had a relatively reasonable price for all people. The location for soybean farming needed a particular characteristic based on its growing necessities in order to get yielding satisfaction in the end. One of the process after soybean harvesting was to transport them to the soybean agro industry factory as the raw material for tofu product. Tofu industry was a small level industry, which was usually a family business and passed on for generations. This k i d of tradition can be a problem if the location turned out not to be the ideal location because there was other expenses like transportation fee thus the revenue was not optimal and can not sustain the industry to develop any better. From the state of affairs above, we need a kind of system (Decision Support System) to determine the optimal location for soybean production as the industry raw material and the perfect location to build the factory. This Decision Support System hope to fulfill the decision maker need to make an industrial planning for determining the location for soybean fanning and the processing industry in particular. Decision Support System potentially was one of the alternative solutions for the soybean problem. The reason of this research was to study all kind of factors and parameters which affect soybean agro industrial commodity planning especially in determining the location of soybean as raw material production, soybean processing industiy and to design the model of Decision Support System of Agro Industry Location Planning For Tofu In Bogor Region, West Java. This Decision Support System was designed in a software package named CENTRYLOC, which consist of Pinpoint Processing System, Database Management System, Model Base Management System and Dialog Management System. The point of CENTRYLOC was Model Base Management System, which contained three sub models: (1) Raw Material Production Location Analysis Sub Model, (2) Agro Incl~strial Location Analysis Sub Model, and (3) Agro Industrial Financial Properness Analysis Sub Model. Raw Material Production Location Analysis Sub Model was designed to verify the suitable location to establish soybean fanning based on the ideal criterias for soybean farming. The analysis result of model that utilizes Exponential Comparison Method was that the most suitable locations for soybean fanning were Pasung Panjang, Ciomas, Cibungbulang, Ciampea, Dramaga, Ciawi, Sukaraja, and Cibinong District.
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Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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