Judul: Pengembangan Jadwal Produksi Berbasis Web di PT Sinar Sosro KPB Tambun, Bekasi – Jawa Barat
Abstrak: Production scheduling is an important factor for implementation of production process. A large amount of idle time and queuing process on using heat exchanger plate in kitchen unit becomes a problem in production scheduling at PT Sinar Sosro-Tambun Site. Solutions for these problems are create production and detailed daily work scheduling. For production scheduling, critical ratio method considered to be the most suitable to company characteristics that demand and delivery must be done based on daily basis. The value of critical ratio derived by ratio of supply product and demand product. Production scheduling process with the critical ratio method constructs a production schedule from the lowest to the highest ratio based on critical values and adjusts to production lines that are used. Effectiveness of production scheduling known from value of production machine utilization that derived by ratio of actual usage time and availability of capacity time. Scheduling model develops in Sosro Production Scheduling Information Systems program version 1.0 (JPS SI 1.0) by using php programming. After production scheduling, machine utilization value will be decrease which means effectiveness of desired production scheduling can be achieved. Implementing scheduling process can also reduce idle time on production process. Scheduling model would be better implemented if integrated to inventory scheduling model and consider to engine damage condition.
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Judul: Model Perbaikan Penjadwalan Produksi di PT. MDS,Cikarang - Bekasi
Abstrak: Production scheduling is an important aspect to support the success of a manufacturing company in achieving the target of production planning and affects the implementation of the production process over a period of time. The amount of idle time in scheduling are considered less effective in the production line and detailed production scheduling becomes a problem to be solved with rearrangment of the daily activities in PT. MDS. Preliminary research results indicate that production scheduling in PT. MDS influenced by demand of products, stock products, a number of production, downtime of machine cause of change over time, the order of production scheduling, transportation delay between machines, and working time of machine. A Critical ratio method, the next grouping of products, and re-sequencing of production process with Shortest Processing Time method is the right method in response to a scheduling problem in PT. MDS. A Critical ratio method is useful to sort the product type, while the grouping of products and the Shortest Processing Time method useful to maximize the use of equipments as well as reducing of idle time. The results showed a decreased machine utilization of 64% to 60% and downtime of machine decreased to 5%.
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Judul: Tawon Eucoilinae (Hymenoptera: Figitidae) di Pegunungan Mekongga, Sulawesi Tenggara: Keanekaragaman Berdasarkan Tipe Habitat dan Ketinggian.
Abstrak: Eucoilinae merupakan subfamili dari Figitidae yang memiliki jumlah spesies dan individu paling banyak dan memiliki distribusi yang luas. Eucoilinae hidup sebagai endoparasit pada larva Diptera yang hidup pada jaringan tanaman maupun yang hidup sebagai saprofag. Penelitian ini bertujuan mempelajari keanekaragaman tawon Eucoilinae di Pegunungan Mekongga. Sampel Eucoilinae dikoleksi pada tahun 2009-2011 oleh tim peneliti kerjasama Lembaga Ilmu Pengetahuan Indonesia (LIPI) dengan International Cooperative Biodiversity Group (ICBG) UC Davis, menggunakan perangkap Malaise, perangkap yellow pan, dan jaring serangga. Berdasarkan sampel tersebut, didapatkan 357 individu Eucoilinae yang termasuk ke dalam 14 genus dan paling tidak 66 morfospesies. Genus yang ditemukan adalah Ganaspis, Leptopilina, Didyctium, Rhoptromeris, Linoeucoila, Afrostilba, Leptolamina, Kleidotoma, Araeaspis, Hexacola, Ealata, Endecameris, Gastraspis, dan Nordlanderia. Jumlah individu Eucoilinae tertinggi terdapat pada ketinggian 100-450 m dpl di habitat hutan sekunder campuran (205 individu, 13 genus). Keragaman Eucoilinae di Pegunungan Mekongga tergolong kategori sedang (H’=1,64) dengan penyebaran yang merata (E=0,62). Perangkap Malaise merupakan perangkap yang paling efektif untuk menangkap Eucoilinae.
Keyword: Eucoilinae, Figitidae, keanekaragaman, Mekongga, Sulawesi