Judul: Perencanaan produksi dan pengendalian kualitas Solid door di PT. Bumi Raya Utama Group, Palembang Sumatera Selatan
Abstrak: Kemajuan teknologi dan tingginya persaingan dalam per- dagangan produk-produk industri kayu terutama produk wood working, menuntut adanya efisiensi dan efektivitas dalam proses produksi sehingga diperoleh biaya produksi yang rendah dengan rendemen yang tinggi. Perencanaan berfungsi untuk merumuskan langkah-langkah harus diambil dalam proses produksi; sedangkan yang pengendalian berfungsi untuk mengamati setiap proses agar tidak menyimpang dari rencana dan melokasikan dengan tepat apabila terjadi penyimpangan, untuk perbaikan pada proses berikutnya. Penelitian ini bertujuan untuk mengetahui unjuk tindak proses pembuatan solid door, menentukan target size bagi kayu gergajian yang akan digunakan sebagai bahan solid door, dan mencoba merencanakan kebutuhan volume bahan baku bagi kelancaran proses produksinya. Penelitian dilakukan di PT. Bumi Raya Utama Group, Pa- lembang Sumatera Selatan. Bahan-bahan yang diamati ada- lah bahan baku, bahan setengah jadi sampai pada produk ak- hir berupa solid door. Ukuran setiap bahan diamati dengan menggunakan peta pengawasan X, untuk mengevaluasi keter-...
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Judul: Raw Material Inventory Control Analysis of Wood Products Door At PT X
Abstrak: Pengendalian persediaan dalam kegiatan manufaktur merupakan hal yang penting, untuk membantu kegiatan manufaktur beroperasi secara efisien dengan tetap memenuhi target produksi yang telah ditetapkan. Penelitian ini bertujuan untuk mengidentifikasi, menganalisis, dan mengevaluasi penerapan sistem pengendalian persediaan bahan baku kayu di PT X. Metode yang digunakan pada penelitian adalah penggunaan teknik lot sizing dengan teknik Economic Order Quantity (EOQ) dan teknik Part Period Balancing (PPB) yang bertujuan untuk menghitung kuantitas pemesanan yang optimal, meminimalkan biaya persediaan yang terdiri atas biaya pemesanan dan biaya penyimpanan. Hasil penelitian menunjukkan bahwa total biaya persediaan bahan baku Pinus lebih hemat bila menggunakan teknik EOQ, yakni sebesar Rp 664 842 561 dengan jumlah pemesanan optimal sebanyak 3208 m3. Pada bahan baku White Oak, Red Oak, dan Merbau teknik PPB menghasilkan total biaya persediaan yang lebih rendah dari teknik EOQ, yaitu berturut-turut sebesar Rp 768 303 690, Rp 816 013 770, dan Rp 1 938 217 000. Jumlah pemesanan optimal untuk bahan baku White Oak sebanyak 1265 m3, Red Oak sebanyak 101 m3, dan Merbau sebanyak 632 m3.
Keyword: Economic order quantity, Inventory, Lot sizing, Part period balancing, Agroindustrial technology, Pemesanan bahan baku, Biaya persediaan, EOQ, Metode PPB

Judul: Phylogeography and Species Limits in the Papuan White Snake (Micropechis ikaheka) (Reptilia: Serpentes: Elapidae)
Abstrak: Papua white snake, Micropechis ikaheka, has been distingushed into two subspecies M.i. ikaheka and M.i. fasciatus. However, due to lack of data on their morphology, distribution and ecology, both subspecies often ignored in scintific discussions and refers only byas , Micropechis ikaheka. This study was designed to document the differences between M.i. ikaheka and M.i fasciatus by using scales characteristics and reproductive organ or hemipenes. The study also examine, zoogeography, habitat, diet and cannibalism of both subspecies to better understanding the the ecology of one of the most venomous snakes in the world. This study consists of three topics with method and also different in the size samples, respectively. The first study is the histology and microtopography of the skin were studied using paraffin method and Scanning Electron Microscope (SEM). The second is the hemipenis were examined by following Myers and Cadle (2003), and Zaher and Prudente (2003). The third is the abdominal surgery was carried out to document diet type and the investigate phenomenon of cannibalism in the snake. Specimens for this study came from the collection from Museum Zoologicum Bogoriense (MZB) and Universitas Negeri Papua’s Laboratory (LZU). The research result also indicated that the markers of skin and hemipenis described the same structure and microornamentation in all M. ikaheka groups being compared. Based specimens examined morphological descriptions do not s support the further differentiation in Micropechis. In short, two markers that used in this study could not sufficiently indicate the differences in the level of species and subspecies of M. ikaheka. The study, however, were able to delineate zoogeography and skin color patterns, which fall into four groups: M. i. ikaheka; M. i. fasciatus. M. i. ssp. “intermediate”; and M. i. ssp “black”. This study also revealed that color variations did not overlap in their geographic distribution. It is therefore, it suggested that environmental factors may contribute to the skin color variations. It also assumed that habitat discontinuous and biogeography factors may also cause the loss of the connection between the original populations (vicarians) or follow colonization events (dispersal). The examined of 22 stomach contents of M. ikaheka shows this species is carnivorous, and prey on vertebrates such as amphibians, fish, reptiles, and Mammals. These snakes are opportunistic predators since they prey on all that can be captured, but mainly reptiles (61.5%), followed by mammals and fish (both 15.4%), and amphibians (7.7%). Although categorized as terrestrial animal, the diet study showed that M. ikaheka snakes often go into the water to hunt for fish (the sample from Yapen island), including eel (the sample from Aru island). Based on prey items indentified, there is evidence that M. ikaheka is cannibal. At this time, there still no record on reason for cannibalism, but it is assumed that cannibalism was due to competition between populations and means to control population.
Keyword: geographic variation, white snake, papua