Judul: Evaluasi Uji Fisik Kualitas Dedak Padi di Kabupaten Kebumen Jawa Tengah.
Abstrak: Rice bran is a by product of rice milling industry which can be used as feedstuff. A different rice milling will influence the result of rice bran’s physical and chemical properties. The purpose of this research was to assess the nutrien content of rice bran through physical test and compared with chemical test methods in Kebumen district. The experimental design used in this study was randomized block design (RBD) with 5 treatments and 3 groups. The treatment were P1 = Buluspesantren sub districts; P2 = Karangsambung sub districts; P3 = Kebumen sub districts; P4 = Gombong sub districts and P5 = Kutowinangun sub districts. Data were analyzed using analysis of variance (ANOVA) and significant results will be continued test of Duncan. The results showed that bulk density, compacted bulk density and angel of repose had the significantly different effect (P<0.01) in each district. The quality of rice bran in Kebumen district could be classified into quality II and III. Physical test, spesific density, bulk density, and compacted bulk density can help to estimate the chemical test especially crude protein and crude fiber.
Keyword: Kebumen districts, milling, physical properties, rice bran

Judul: Evaluation of the Quality of Rice Bran  through Physical Properties and Estimation of Chemical Value in Paseh District,  Bandung Regency, West Java
Abstrak: Dedak padi merupakan hasil samping dari proses penggilingan padi, umumnya digunakan sebagai sumber energi pada pakan ternak. Tujuan penelitian ini adalah mengkaji kualitas fisik serta pendugaan komposisi kimia dedak padi di Kecamatan Paseh, Kabupaten Bandung. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 10 perlakuan dan 4 ulangan. Analisis data dilakukan dengan analysis of variance (ANOVA) dan dilanjutkan dengan uji Duncan. Kualitas fisik dedak padi berupa nilai berat jenis (BJ), kerapatan tumpukan (KT), dan kerapatan pemadatan tumpukan (KPT) pada sepuluh pabrik (desa) di Kecamatan Paseh, Kabupaten Bandung ditemukan nyata (P<0,05) beragam hasilnya. Hasil uji lanjut didapatkan kualitas tertinggi (KT 261,46 g L-1 ; KPT 385,66 g L-1) hingga terendah (KT 332,76 g L-1 ; KPT 491,16 g L-1). Kualitas dedak padi tertinggi adalah dedak padi dari pabrik (desa) Sukamanah. Dedak padi di Kecamatan Paseh tergolong ke dalam mutu SNI I, II, dan III., Rice bran is a byproduct of the rice milling process, generally used as an energy source in animal feed. This researchwas to evaluate the physical quality and predictions of chemical composition of rice bran in Paseh district, Bandung regency. This research used a completely randomized design (CRD) with 10 levels of treatments and 4 replications. The data obtained were using analysis of variance (ANOVA) and continued with Duncan's test. The physical quality of rice bran in the form of true density (TD), bulk density (BD), and compact bulk density (CBD) from ten mills in Paseh district, Bandung regency are significantly different (P <0,05) with various results. Based on the result of further test, obtained the highest value (BD 261,46 g L-1 ; CBD 385,66 g L-1) to the lowest (BD 332,76 g L-1 ; CBD 491,16 g L-1). Sukamanah mill has the best quality. Rice bran in Paseh district was classified into I, II, and III grades quality of SNI.
Keyword: Bandung Regency, Paseh District, physical properties, rice bran

Judul: Formulasi Hamiltonian untuk Menggambarkan Gerak Gelombang Soliter Dimensi Tiga di Permukaan Laut
Abstrak: Gelombang permukaan adalah gelombang yang terjadi perbedaan rapat massa antara air dan udara. Salah satu gelombang permukaan yang ditinjau adalah gelombang soliter. Formulasi gelombang soliter dilakukan dengan menggunakan formulasi Hamiltonian.
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