Judul: Institutional system engineering support for quality assurance of raw material supply of cattle hides for gelatin agro industry development
Abstrak: In the supply of quality and halal products, there are several criteria that must be fulfilled in terms of types of material, the preparati on method and the effort to obtain it. Although the reviewed product derived from cattle hides, this product cannot be automatically considered as a halal product, without getting through traceability process and the applicable halal standardization in advance. A traceability of gelatine raw material would require an effective system for the users in collecting information about the origin of raw materials and the materials management process at every stage of the process, starting from raw materials to finished product. The traceability system involves various parties who have different needs and goals in the process of supplying raw materials. Therefore, there should be institutional system engineering that can manage and handle the traceability process and the procurement of gelatine raw materials in order to provide assurance for the origin of raw materials and facilitate the industry, as well as the users of gelatine in making the standardization of quality, such as halal standards.
Keyword: Cattle hides, Interpretive Stuructural Modeling, Raw material supply

Judul: Design of Traceability Information System for Organic Chicken Certification
Abstrak: Traceability merupakan faktor penting dalam menjaga integritas mutu dan keamanan pangan serta kepercayaan konsumen. Sebagai bagian proses sertifikasi daging ayam organik, traceability menjadi salah satu persyaratan yang wajib terpenuhi, sehingga memungkinkan bagi lembaga sertifikasi dan otoritas untuk menelusuri asal, sifat dan kuantitas semua bahan yang dibeli, serta penggunaan bahan tersebut, dalam hal ini bagaimana menjaga aliran informasi antar stakeholder. Penelitian ini bertujuan untuk menganalisis kebutuhan, memformulasi dan membangun prototipe serta mengevaluasi kinerja sistem informasi traceability untuk sertifikasi organik daging ayam. Analisis kebutuhan sistem dilakukan melalui observasi dan wawancara kepada Peternak, Lembaga Sertifikasi Organik, dan Kementerian Pertanian. Business Process Model and Notation (BPMN) digunakan dalam pemodelan proses bisnis sistem untuk melihat peran dan transaksi data antar aktor. Hubungan interaksi antara sistem dengan aktor digambarkan dengan Use Case Diagram. Hasil analisis menunjukkan bahwa sistem informasi yang diusulkan melibatkan 8 stakeholder. Proses dokumentasi data dilakukan secara digital melalui aplikasi mobile berbasis android, menggunakan bahasa pemrograman Dart dengan kerangka kerja yang bernama Flutter sebagai software development kit digunakan untuk merancang prototipe sistem. Input sistem berasal dari transaksi data pada proses bisnis yang dilakukan para aktor, meliputi data bibit, pakan, herbal, sirkulasi, litter, perkembangan ternak, panen, pemeriksaan, pengangkutan, kandang karantina, pemotongan, pengemasan, penyimpanan dan penjualan. Sistem informasi ini memungkinkan para aktor memperoleh laporan berdasarkan isi dan waktu. Kombinasi struktur pelaporan meliputi laporan detail history, history summary, dan predictive summary. Selanjutnya, 19 output laporan sistem meliputi perkembangan ternak; pemberian pakan dan jamu; pengiriman pakan; pengiriman bibit; penerimaan bibit; penerimaan herbal; sumber bibit; panen; pemotongan; penjualan; pemeriksaan; pengawasan penerimaan DOC dan pakan; pengawasan pengobatan, biosekuriti, dan disinfeksi; pengawasan persyaratan kandang, pemeliharaan, dan recording perkembangan ternak ayam; pengawasan perlakuan ayam dalam pemeliharaan organik dari saat pemanenan hingga penyimpanan; tracing; dan prediksi kinerja produksi. Prediksi kinerja hasil produksi ayam organik untuk kebutuhan perencanaan produksi dan inspeksi diformulasi menggunakan teknik ensemble learning. Atribut yang mempengaruhi kinerja sebagai input antara lain jagung, dedak, bungkil kedelai, bungkil kelapa, tepung ikan, CPO, dan herbal. Evaluasi kinerja model prediksi menggunakan analisis Receiver Operating Characteristic (ROC), dengan nilai akurasi rata-rata 99,8%. Verifikasi dan validasi sistem menggunakan metode black-box testing. Hasil evaluasi menunjukkan bahwa sistem telah mampu berjalan dengan baik dan sesuai dengan representasi dunia nyata.
Keyword: broiler industry, information system design, organic certification, traceability

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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