Judul: Aplikasi Program Heuristik dan Metoda Jalur Kritis Untuk Penjadwalan Produksi Harian
Abstrak: Salah satu tolok ukur keberhasilan industri adalah ke- percayaan pelanggan. Kepercayaan pelanggan ini dapat dijaga dengan pemenuhan pesanan tepat pada waktunya dan mutu produk yang baik. Pemenuhan pesanan tepat pada waktunya dapat diupayakan dengan membuat jadwal produksi yang tepat. Program ARSITAS merupakan aplikasi Program Heuristik dan Metoda Jalur Kritis yang direkayasa untuk membantu ma- najer produksi. informasi tentang Penentuan kebijakan produksi dilengkapi penentuan waktu tambah, perbedaan biaya dan lama waktu penyelesaian pesanan. Dari kebijakan yang dipilih program ARSITAS akan mengeluarkan Jadwal Produksi Harian. Bagian proses produksi yang dikerjakan dalam waktu tambah dipilih dari bagian proses produksi yang terletak dalam jalur kritis dan dengan biaya per unit waktu terkecil. Program ARSITAS ini dapat dipakai untuk industri pera- kitan. Pangkalan Data membutuhkan data waktu kerja, biaya dan jumlah tenaga kerja untuk setiap unit proses produksi. Masukan yang dibutuhakan adalah: waktu penyelesaian yang diharapkan, sewa gedung pabrik per bulan, biaya administrasi per bulan. Syarat aplikasi adalah proses produksi dapat dibuat jaringan kerjanya, maksimum tahapan produksi 32, dan maksimum waktu penyelesaian selama tiga puluh satuan waktu. Verifikasi model Program ARSITAS dilakukan di PT Arsitas Mitra yang berlokasi Jakarta dimana penentuan waktu tambah dengan Program ARSITAS untuk pesanan katagori AL 8670 sejumlah 1500 lusin dengan kerja normal akan selesai dalam 24 hari dan biaya Rp 14 461 970,-. Bila dengan kerja lembur selesai dalam 18 hari dan biaya Rp 18 028 960,-, sedangkan 8 bila dengan penambahan regu kerja akan selesai dalam 18 hari dengan biaya sebesar Rp 26 618 330,-. Adapun hasil perhitungan untuk katagori AM 8510 sebanyak 1000 lusin dengan waktu normal akan selesai dalam 14 hari dan biaya sebesar Rp 8 769 917,-. Bila dengan kerja lembur akan selesai dalam 12 hari dengan biaya Rp 8 894 971,-, sedangkan dengan penambahan regu kerja akan selesai dalam 12 hari dan biaya sebesar Rp 12 325 040,-…dst
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Judul: Model Penjadwalan Produksi Di PT. Gasandry, Bogor.
Abstrak: Production scheduling is an important element in industry planning production. In the hierarchy of decision making, scheduling is the last step before the commencement of production. Many companies have problems to deliver goods on time, late of work, overtime, and the number of idle workstations. All these will lead to wasteful activities and the high production cost. PT.Gasandry (GS) Bogor is a beverage packaging coffee company. Number of idle time is becoming one of the production scheduling problems. There should be mechanisms of activities to achieve an efficiency and effectiveness of production. Those activities consist of the transformation of raw materials with a particular sequence, use of machinery facilities, equipment and labor. This research is aimed to identify factors associated with the company scheduling and find the best production alternative scheduling model, which is appropriate with the conditions and characteristics of the company. This research is using heuristic method which is developed from the process of arithmetic and mathematical logic. This method is considered as a good method to streamline the production scheduling in PT Gasandry. PT.Gasandry is producing six products, such as ginger coffee milk, coffee milk, coffee mocha, instant coffee, original coffee and sugar ginger. There are three types in the coffee production process. They are milling process, without milling process and packaging process only. The result of this research is production scheduling model that can minimize the idle time. The model was called GSPS 1.0 (Gasandry Production Schedule) which had several models, consisted of product master model, a master model material, model master working days, production needs model, product model in and out of warehouses, enter the material model, material model and message scheduling model. GSPS 1.0 will help the production scheduling easier. For implementation purposes, GSPS 1.0 is an integrated system of a computer program Borland Delphi 7.0 as the software for user interfaces and Ms. Access 2007 as base data. From the result of scheduling that has been made, PT Gasandry will be able to optimize the working time of workers by reducing the number of workers to a maximum of 18 person / days of the initial 30 man / days in average of demand is 22.935 dozen/month. Production scheduling in PT.Gasandry is influenced by product varian, products demand, product tolerance store, production time, and capacity of packaging machinery. Critical factor in the preparation of production scheduling in PT.Gasandry is the capacity of packaging machinery.
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Judul: Gambaran Leukosit Domba Ekor Tipis yang Diinfeksi Haemonchus contortus.
Abstrak: The aim of this study was to investigate the effect of Haemonchus contortus infection to white blood cell profile of Javanese thin tail sheep. Twenty males Javanese thin tailed sheep were divided into five groups, namely infected group of 500 L3, 1000 L3, 2000 L3, 4000 L3 and uninfective group as control. The blood and fecal samples were collected from rectum before and three weeks after infection. The blood samples were collected using venoject® from Jugular vein. The fecal samples were collected directly from rectum. The blood samples were examined to determine total of white blood cell (leukocytes) and white blood cell differential, whereas fecal samples to determine egg per gram. The result showed that Haemonchus contortus infections cause an increased total of leukocyte but were not significantly different among of level infection doses (P>0.05). Number of eosinophils were significantly different among uninfected group (P<0.05), but were not significantly different in number of lymphocyte, monocyte, and neutrophil (P>0.05). There where positively correlated significantly between the amount of egg per gram (EPG) and profile of eosinophil (P<0.05), however were negatively correlated significantly between the amount of egg per gram (EPG) and neutrophil’s profile (P<0.05). There where no correlation significantly between the amount of egg per gram (EPG) and profile of white blood cell, lymphocyte, and monocyte (P>0.05).
Keyword: differential leukocyte, Haemonchus contortus, leukocyte, sheep