Judul: Penjadwalan Petugas Satuan Pengamanan Menggunakan Nonpreemptive Goal Programming dan Implementasinya di Institut Pertanian Bogor.
Abstrak: Salah satu permasalahan yang sering ditemukan pada manajemen sistem keamanan adalah masalah penjadwalan Satuan Pengamanan (Satpam). Dalam penjadwalan Satpam perlu diperhatikan hal-hal yang terkait dengan banyaknya kebutuhan anggota Satpam pada setiap shift di setiap hari, keseimbangan banyaknya shift pagi, sore, dan malam yang diperoleh masing-masing anggota Satpam, keadilan penugasan antar anggota baik terkait dengan total shift penugasan maupun terkait dengan komposisi banyaknya shift pagi, siang, dan malam yang ditugaskan ke masing-masing anggota dan pola perpindahan penugasan anggota dari satu tipe shift (pagi, siang, atau malam) ke shift tipe lain. Permasalahan penjadwalan Satpam ini dimodelkan sebagai suatu model optimasi dengan tujuan meminimumkan total deviasi antara banyaknya anggota yang dibutuhkan dengan anggota yang ditugaskan untuk setiap shift selama periode perencanaan. Karena fungsi tujuan semacam itu, masalah ini dimodelkan sebagai Nonpreemptive Goal Programming. Model ini diimplementasikan untuk kasus penjadwalan Satpam di Institut Pertanian Bogor.
Keyword: penjadwalan, goal programming, nonpreemptive goal programming

Judul: Penjadwalan Pengawas Ujian Menggunakan Goal programming: Studi Kasus di Departemen Matematika FMIPA IPB
Abstrak: Scheduling of exam invigatiors has been commonly done in conventional mamer. In this activity. exam period, the number of courses, avalability of rooms, the number of examiness, and availability of invigilators are components which relate to exam execution. To overcome the limitation of the convention research/management science (OR/MS) apporaches.
Keyword: Bogor Agricultural University (IPB), Nonpreemptive goal programming, Scheduling

Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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