Judul: Analisis pengaruh rekayasa antrian aliran bahan terhadap produktivitas proses pengolahan live shrimp head on boiled frozen menggunakan metode queuing system simulation (QSS)
Abstrak: Salah satu masalah krusial dan fundamental dalam industri pengolahan udang selain mutu adalah produktifitas. Cold storage sebagai ullit pengolahan yang melaksanakan fungsi produksi yaitu teknik untuk menciptakan atau menambah kegunaan suatu produk dengan mengoptimalkan sumber daya produksi (tenaga kcrja. mcsin, bahan baku), seringkali diperhadapkan pad a suatu kondisi umum yang berkaitan dcngan antrian dill1ana menimbulkan sualu konc1isi hOl/lelleek yang mcngakibatkan biaya tingg; karen a menurunkan produktitit<'s dan kCl'ugian karena tingkat kerusakan produk alau kcmunduran mutu akan mcningkat. Teori antrian didasarkan pada suatu model matematis yang dikcmbangkan untuk mcmaksin1alkan pcnggunaan waktu proses dan mengurangi waktu menunggu akibat keacakan sistim ( Agung. 1990 ).
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Judul: Analisa model antrian penyortiran udang di pabrik pengolahan udang beku : studi kasus di PT Hotanjaya Graha, Jakarta
Abstrak: Sistem pengolahan udang beku merupakan suatu kegiatan yang kompleks, karena kegiatan ini dipengaruhi oleh banyak faktor dalam usaha menghasilkan produk udang beku yang bermutu baik. Salah satu faktor tersebut adalah adanya penundaan proses pengolahan udang beku. Penundaan ini terjadi karena laju pelayanan suatu tahap proses. tertentu lebih kecil dari laju kedatangannya, seperti pada tahap penyortiran. Dengan tertundanya proses pengolahan ini, maka dapat menyebabkan penurunan mutu udang dan akhirnya akan mempengaruhi nilai ekonomisnya. Tujuan penelitian ini adalah menerapkan teori antrian dan simulasi pada sistem penyortiran udang di pabrik pengolahan udang beku serta menentukan alternatif kebijakan yang tepat. Hasil uji kecukupan data menunjukkan bahwa semua data cukup mewakili populasi. Sedangkan hasil uji kesesuaian sebaran data menunjukkan bahwa laju kedatangan bak udang tidak mengikuti sebaran Poisson, tetapi mengikuti bentuk sebaran khusus dan waktu pelayanan juga tidak menyebar secara eksponensial maupun secara normal, sehingga penggunaan distribusi empiris lebih mewakili.
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Judul: A Monograph of the Genus Diplycosia (Ericaceae) in New Guinea
Abstrak: Diplycosia is an under-studied genus of Ericaceae, with a distribution confined almost to Malesia with most members are endemic to a single island or even a single mountain. New Guinea which, prior to this study, inhabited by 21 endemic species and once considered as one of the centres of diversity. Many species of Diplycosia in New Guinea are known only from limited collections: either only from the type specimens, or from only two or three specimens from a single or few locations; several have incomplete descriptions due to the absence of floral parts. Therefore, a taxonomic revision is needed for the genus Diplycosia in this island. Besides that, despite mostly being narrow endemic, 17 described species have not been evaluated for their IUCN conservation status which has become an obstacle for conservation actions. Therefore, an assessment is urgently required for the genus in New Guinea. A morphological species concept was used in this revision, and specimens were studied from various herbaria either directly or from digital resources: Australian National Herbarium (CANB), Harvard University (A), Muséum National d'Histoire Naturelle, Paris (P), Naturalis History Museum Firenze (FI), Naturalis Leiden (L), Papua New Guinea Forest Research Institute (LAE), PT Freeport Indonesia (tentatively as FRE), Research Center for Biology Indonesia Institute of Sciences (BO), Royal Botanic Gardens Kew (K), and Universitas Papua (MAN). Field explorations were carried out in Indonesian New Guinea, including Birds Head Peninsula and Mount Jaya area. An observation on qualitative anatomical characters of leaf epidermis was done in eight species. Assessment of conservation status was based on IUCN Red List guideline including range sizes calculated using GeoCAT using data sourced from herbarium specimens, literature and recently gathered data from the field exploration. A total number of 26 endemic species are accepted in New Guinea. Four new species are described namely Diplycosia elegans Mustaqim, Utteridge & Heatubun, D. hexamera Mustaqim, Utteridge & Heatubun, Diplycosia puradyatmikai Mustaqim, Utteridge & Heatubun, Diplycosia reticulifolia Mustaqim, Utteridge & Heatubun, together with a variety Diplycosia lorentzii var. acuminata Mustaqim, Utteridge & Heatubun. Diplycosia morobeensis var. ovatifolia Sleumer is reduced to a synonym of Diplycosia morobeensis Sleumer. Based on our current result, a higher number of species was reported from the western half of the island compared to the eastern half. So far, the central part of New Guinea from Jayawijaya Mountains east to the mountains near Indonesia and PNG border is an area with the highest diversity despite being poorly explored. The geographical range of the species varies from widespread species, found across the island, to very narrow endemics, some even restricted to a single mountain complex or a single locality. New Guinean Diplycosia grows as epiphytes or a terrestrial shrubs in mostly the mossy forests upwards to alpine vegetation. The elevation range from 800 in Wandammen Peninsula for D. kosteri and 4000 m in Mount Giluwe for D. rupicola and D. morobeensis. Seven species are known to inhabit alpine vegetation in New Guinea including the new species D. elegans. From this study, we recorded two new important information in the generic character of Diplycosia. It has been
Keyword: conservation status, East Malesia, epiphyte, Ericaceae, new species, taxonomy