Judul: Penilaian Kriteria Green Building Aspek Sumber dan Siklus Material, Kualitas serta Kenyamanan Udara pada Gedung Andi Hakim Nasoetion Rektorat IPB.
Abstrak: Green concept bulding were a current essential issue in architectural design. Bogor Agricultural University as one of Indonesian leading university whom prioritizing environmental issue should apply green concept in its own building. The fact that none of IPB buildings were equipped with greeen building certificate namely from GBCI. The aims of this study was to assess and analyze the suitability of AHN Building of IPB Rectorate to be categorized as green building. Green building criteria assessment and analyze were performed on material source and cycle aspect, air quality and comfort all of it were based on GBCI and giving recomendation on what can be done for improvement. Assessment were performed using Greenship Rating Tools versi 1.0 created by GBCI. There are two types of data in this study which is primary and secondary data. There were eight points of assessment on material source and cycle aspect which is three points of requirements and five value points. There were nine points of assessment on air quality and comfort which is one points of requirements and eight value points. The results of the assessment showed that green building implementation on AHN building of IPB Rectorate includings air quality and comfort (IHC) was reaching 35% (7 of 20 points). The results of the assessment on material source and cycle (MRC) was reaching 25% (3 of 12 points). The total accomplishment of AHN building of IPB Rectorate was reaching 36,75% (43 of 117 points), makes it granted bronze category. Rectorate building need to evaluate and fulfil its requirement to become a green building. Some of the requirement were to complete the SOP and letter of commitment of the top management about the green building initiative.
Keyword: comfort air, GBCI, green building, material, quality air

Judul: Penilaian Kriteria Green Building Aspek Konservasi Air dan Manajemen Lingkungan Bangunan Pada Gedung Andi Hakim Nasoetion IPB
Abstrak: Saat ini gedung-gedung di Institut Pertanian Bogor (IPB) belum memiliki sertifikat green building, khususnya dari lembaga Green Building Council Indonesia (GBCI). Oleh karena itu, gedung Andi Hakim Nasoetion Rektorat IPB dipilih sebagai objek penelitian ini, yaitu tentang penilaian green building. Perangkat penilaian yang dipakai sebagai instrumen penelitian ini adalah greenship existing building versi 1.0, khususnya kategori konservasi air dan manajemen lingkungan bangunan. Penelitian ini dilakukan dengan tujuan untuk melakukan penilaian berdasarkan kemampuan gedung Andi Hakim Nasoetion Rektorat IPB untuk memenuhi kriteria green building dalam greenship rating fools milik GBCI, khususnya kategori konservasi air dan manajemen lingkungan Bangunan. Tujuan selanjutnya adalah memberikan rekomendasi perbaikan gedung agar dapat mencapai peringkat tersertifikasi green building GBCI yang Lebih tinggi pada penilaian selanjutnya. Gedung Andi Hakim Nasoetion Rektorat IPB berdiri pada tahun 1995 dengan luas total bangunan kurang lebih 15.322 m². Gedung ini terdiri atas 6 lantai dan merupakan pusat informasi pendidikan di IPB. Hasil penelitian menunjukkan bahwa saat ini gedung Andi Hakim Nasoetion Rektorat IPB berhasil memperoleh nilai sebesar 25% (5 dari 20 poin) pada kategori konservasi air. Sedangkan pada kategori manajemen lingkungan bangunan gedung Andi Hakim Nasoetion Rektorat IPB berhasil memperoleh nilai sebesar 61.5% (8 dari 13 poin)….
Keyword: Building environment management, GBCI, green building, greenship, water conservation, Bangunan hijau, Green building council Indonesia, Konservasi, GBCI, Kondisi eksisting, Hasil assessment, Gedung rectorat IPB, Rekomendasi gedung

Judul: Penggunaan metode homotopi untuk menyelesaikan model populasi volterra
Abstrak: Most phenomena in nature can be explained in mathematical models. One of the mathematical models explaining population growth is Volterra equation. Volterra population equation is a nonlinear integral equation. This equation can be solved using homotopy method, which is an analytical approximation method to obtain the solution of nonlinear problems. In this paper, Volterra population model is solved using homotopy method, which gives a recursive formula to be solved using MAPLE software. The result shows that the greater approximation order we use, the wider convergence solution area will be.
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