Judul: Rekayasa model sistem produksi dalam pengadaan bahan baku agroindustri nenas
Abstrak: Industri hasil pertanian komoditi nenas membutuhkan kontinuitas dan ketersediaan bahan baku serta keseragaman mutu nenas, karena merupakan faktor kritis bagi kelangsungan bisnis. Jaringan niaga nenas rakyat secara tradisional telah dikuasai oleh pengumpul dan pedagang, sehingga industri perlu merekayasa suatu sistem pengadaan bahan baku yang dapat melindungi petani produsen sekaligus menjamin kelayakan usaha industri tersebut. Budidaya pertanian nenas rakyat yang masih tradisional menyebabkan produksi dan mutu buah nenas rakyat rendah. Tingkat produksi nenas rakyat dipengaruhi faktor musim dan budidaya, sehingga kontinuitas ketersediaan nenas rakyat sulit dicapai. Model Sistem Produksi dalam Pengadaan Bahan Baku Industri Nenas (PRODABB) dirancang untuk membantu manajemen pengadaan bahan baku agroindustri nenas yang berkaitan dengan pertanian nenas rakyat. ...
Keyword: 

Judul: Rekayasa Model Sistem Pengendalian Bahan Baku dan Produk Olahan Agroindutri dari Komoditi Nenas
Abstrak: Tujuan manajemen operasional agroindustri antara lain adalah kesinambungan produksi yang erat kaitannya dengan ketersediaan bahan baku dan pema- . . saran pr5duk olahannya. Kesinambungan produksi yang belum terjamin mengakibatkan interaksi antara permintam dan penawaran menjadi tidak seimbang, sehingga mengakibatkan terjadinya fluktuasi harga yang tidak diinginkan oleh pihak petani maupun industri. Tujuan pengkajiari masalah khusus ini adalah mempelajari faktor dan pa-- rameter yang berpengaruh pada penetapan harga pasar, simulasi model estimasi harga pasar pada lokasi tertentu dan menyusun serta mengembangkan model pasar dinamik untuk menunjang pengambilan keputusan yang berkaitan dengan kebijakan harga pasar bahan baku industri nenas dan produk olahan nenas. Model sistem pengendalian harga bahan baku dan produk olahan agroindustri dari komoditi nenas dirancang dalam bentuk perangkat lunak komputer yang dibuat dengan bahasa pemrograman Turbo Pascal versi 5.5, Turbo Pascal Database Toolbox versi 4.0, Turbo Pascal Graphics Toolbox versi 4.0 dan Statgraphics versi 5.0 yang diberi nama DIMAPPIN (Dynamic Market Price for Pineapple). Model DIMAPPIN terdiri dari dua sub model, yaitu RAWPIN (Raw Pineapple) dan PROPIN (Product Pineapple).
Keyword: 

Judul: Characteristic of Overshooting Top (OT) Based on  Himawari  8  Satellite  as  a  Convective  Cloud  Feature  that  Generates  Extreme Weather in the Java Island Region
Abstrak: Overshooting Top (OT) is a feature at the top of a convective cloud that is associated with extreme weather. Research on OT in tropical Indonesia is still very limited. The existence of geostationary satellites with wide area coverage and fast frequency observations is useful for observing the fast dynamics of the OT life cycle. Therefore, this study intends to analyze the relationship between OT and extreme weather, updraft and thermodynamic conditions of OT when extreme weather occurs, the best objective method for detecting OT in the day time and night time, and the spatiotemporal distribution of OT in the tropical region of Java Island during the 2018-2021 period. Based on visual analysis using visible channel and Himawari 8 sandwich products, 87% of extreme weather events in Java were accompanied by the appearance of OT. It indicates that the presence of the OT pattern is a convection cloud pattern or feature that is closely related to extreme weather events for the Java Island region. The existence of a time lag between the appearance of OT and extreme weather events on Java Island indicates that the OT of convection cloud can be used as a precursor or nowcasting for the appearance of extreme weather. Most of the convective cloud OT features during extreme weather events on Java Island have altitude that were only able to exceed the altitude of the equilibrium level and few were able to exceed the tropopause level of 9 km – 16 km. The difference in atmospheric conditions during extreme weather events on Java Island, which is in the tropics and subtropics, is a strong and unstable convective energy condition characterized by a larger CAPE, as well as unstable KI, LI, SI and TTI values. It is offset by kinematic factors in the form of a weak vertical wind shear (bulk wind shear 0-6 km) and a higher freezing point height. The difference between extreme weather events in the Java Island region and other tropical regions compared to subtropical regions is the strong updraft speed of convection clouds. The IRW Texture COMB algorithm based on the IRW-Texture Gradient modification and the COMB algorithm shows a significant increase in quality for detecting OT and non-OT pixels in Java. Rainy days with rainfall > 50 mm/day are very common in areas with an altitude of > 500 m. On the other hand, the level of convection activity which is indicated by the presence of OT and lightning is significantly reduced in this area. OT of convective clouds appear more frequently during the DJF season and less frequently during the JJA season. OT often appears during the day time and rarely at night time. Most OTs appear in the central part, away from the south and north coasts of Java Island during the day, while OTs that appear near the south and north coasts of Java Island can appear in the morning or afternoon.
Keyword: convective clouds, extreme weather, Overshooting Tops, Himawari 8 Satellite