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Abstrak :
For over four decades, Introduction to Operations Research by Frederick Hillier has been the classic text on operations research. While building on the classic strengths of the text, the author continues to find new ways to make the text current and relevant to students. One way is by incorporating a wealth of state-of-the-art, user-friendly software and more coverage of business applications than ever before. The hallmark features of this edition include clear and comprehensive coverage of fundamentals, an extensive set of interesting problems and cases, and state-of-the-practice operations research software used in conjunction with examples from the text. The tenth edition includes new section and chapters, updated problems, and state-of-the-practice operations research software used in conjunction with the examples from the text.

Abstrak :
Gas lahan tempat pembuangan akhir (TPA) merupakan salah satu potensi energi alternatif yang belum dimanfaatkan secara optimal. Oleh karena itu, diperlukan analisis untuk mengetahui potensi pemanfaatan gas lahan TPA sehingga dapat menghasilkan keuntungan yang maksimal. Namun, ketersediaan modal kerap kali menjadi kendala dalam usaha untuk mengembangkan solusi ini. Hasil penelitian dari empat skenario kemungkinan pemanfaatan menunjukkan bahwa apabila modal yang tersedia tidak terbatas maka pilihan penanaman modal akan optimal apabila digunakan sebagai pembangkit listrik dengan menggunakan mesin pembakaran internal dengan nilai Net Present Value (NPV) sebesar 3.191.351 rupiah. Namun apabila terdapat keterbatasan modal, dengan model matematika integer programming prinsip lower bound maka pemanfaaatan gas lahan TPA optimal bila digunakan sebagai pengganti bahan bakar kendaraan. ......Landfill gas is one of potential energy which has not been optimally utilized. So, there is important to have an analysis to discover the potential landfill gas utilization to get the maximum revenue. However, capital budgeting is one of the obstacles to develop this solution. The result of the research from four possibilities shows if there is no capital limit, or capital is not one of essential factor, then we better have landfill gas for electricity generation with internal combustion engine, with Net Present Value (NPV) 3.191.351 rupiah. In other hand, if there is capital limit, then we conduct the integer programming for mathematic formula.