Judul: Desain Agroforestry pada  Lahan Kritis
Abstrak: Design of agroforestry has the objectives of improving the system which has been existing and providing directives for agribusiness on the basis of physical, with pre-diagnosis and diagnosis activities which are aimed at discovering the existing constraints and problems inside the system, followed by technological intervention for system improvement and determinimg the best agroforestry system in critical and condition. Method used ini this study was identifiying the existing agroforestry system, followed by evaluation of land suitability, financial analysis and community social analysis. This study found three agroforestry system based on the existing components, namely agrisilvopasture. Evaluation of land suitability showed that in general, land suitability ratings for woody crops and perennial crops were categorized as moderately suitable (S2), while those or annual crops/non rice food crops were categorized as marginally suitable (S3). Results of financial analysis showed that all existing agroforestry system are feasible to be practiced, with highest benefit cost ratio 2.7 was found in agrisilvopasture system. On the basis of landscape consideration, species of Non-MPTS were more adapted if they were planted in hill ridge, while that of species of MPTs and perennial crops in slope and valley, and that of annual crops in valley
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Judul: Feasibility Study of S3FMU based Agrosilvopastoral on Critical Land in BKPH Parung Panjang KPH Bogor
Abstrak: Lahan kritis merupakan wilayah yang mengalami penurunan atau kehilangan fungsi ekologisnya akibat dari kerusakan secara fisik, kimia, dan biologi. Terdapat lahan kritis di Bagian Kesatuan Pemangkuan Hutan (BKPH) Parung Panjang yang memiliki potensi untuk dikembangkan menjadi sebuah usaha agrosilvopastural dengan menerapkan konsep Smart Small Scale Forest Management Unit (S3FMU) pada pengelolaannya. Penelitian ini bertujuan untuk mengidentifikasi potensi pengembangan usaha agrosilvopastural dengan menerapkan konsep S3FMU pada pengelolaannya, serta menganalisis kelayakan finansial, sosial, dan ekologi usaha agrosilvopastural di BKPH Parung Panjang. Metode pada penelitian ini adalah Analytical Hierarchy Process (AHP) untuk menentukan komoditas jenis sapi perah dan jenis Multy Purpose Tree Species (MPTS) pada usaha agrosilvopastural. Usaha agrosilvopastural ini mencakup agroforestri buah naga dengan MPTS rambutan, peternakan sapi perah dengan jenis sapi holstein friesian, dan wisata petik buah naga dan sapi perah. Usaha agrosilvopastural ini memiliki NPV mencapai Rp63.627.320.477,13 nilai BCR 1,97 dan IRR mencapai 26,45% serta payback period 5,2 tahun., Critical land is an area that has experienced a decline or loss of its ecological function due to physical, chemical, and biological damage. There is critical land in the Parung Panjang Forest Management Unit (BKPH) that has the potential to be developed into an agrosilvopastoral business by applying the Smart Small Scale Forest Management Unit (S3FMU) concept to its management. This study aims to identify the potential for developing an agrosilvopastoral business by applying the S3FMU concept to its management, as well as to analyze the financial, social, and ecological feasibility of an agrosilvopastoral business in BKPH Parung Panjang. The method in this study is Analytical Hierarchy Process (AHP) to determine the type of dairy cow and type of Multy Purpose Tree Species (MPTS) in the agrosilvopastoral business. This agrosilvopastoral business includes dragon fruit agroforestry with rambutan MPTS, dairy farming with Holstein Friesian cows, and dragon fruit and dairy cow picking tourism. This agrosilvopastoral business has an NPV of Rp63,627,320,477.13, a BCR value of 1.97, an IRR of 26.45%, and a payback period of 5.2 years.
Keyword: Analytical Hierarchy Process (AHP), lahan kritis, S3FMU, Agrosilvopastural, Kelayakan Usaha

Judul: Perhitungan penampang hamburan elastik en→en dengan dua macam faktor bentuk: galster dan miller
Abstrak: Penampang hamburan model Galster dan Miller nilainya tergantung pada sudut hambur dan energi elektron datang. Pada variasi sudut mulai 5o sampai 135o dihasilkan penampang hamburan yang nilainya semakin kecil. Hal yang sama diperoleh pada variasi energi elektron datang mulai 0.3 sampai 3.5 GeV. Perbedaan model penampang hamburan Galster dan Miller terletak pada nilai momen magnetik neutronnya. Model penampang hamburan Galster dan Miller memiliki perbedaan pada kisaran energi mulai 0.3 sampai 1.0 GeV dan kesamaan pada kisaran energi mulai 1.0 sampai 3.5 GeV.
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