Judul: Pemanfaatan Data Curah Hujan Untuk Prediksi Sebaran Penyakit Hawar Daun Bakteri Menggunakan Model SMCE (spatial multi criteria evaluation) Studi kasus: Tanaman Padi di Kabupaten Karawang
Abstrak: The potency of loss out caused by Bacterial Leaf Blight (BLB) caused by Xanthomonas campestris pv. oryzae shows the importance of plant disease controlling based on attack potention analysis. Rainfall is one of importan factor that affected distribution of BLB. The purpose of this research is to evaluate the effect of rainfall toward prediction about distribution of BLB with spacial method using SMCE model. The result shows that distribution of BLB much affected by rainfall. Higher rainfall affected more distribution of Xanthomonas campestris pv. oryzae. The high distribution of BLB is occured during rainfall of 50mm – 172 mm, with highest accumulation of rainfall within two weeks are 174 mm. If the rice plant attacked by bacterial when it was young stage until generatif phase, it's production will decrease. Karawang Regency have a medium distribution of bacterial with large enough distribution areas. Prediction result of BLB distribution using SMCE model shows that the areas that susceptible attacked from February until March 2011 in Karawang Regency are some of Lemahabang, Talagasari, Tirta Mulya, Purwasari, Klari, Batujaya, Rawamerta, Bayusari, some of Cibuaya and Jatisari.
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Judul: Analysis of Climate Factors on the Incidence of Bacterial Leaf Blight Disease in Rice Plants
Abstrak: Penyakit hawar daun bakteri merupakan hama dan penyakit tanaman padi yang menganggu produksi padi di Kabupaten Indramayu, Karawang, dan Subang yang merupakan tiga kabupaten dengan produksi padi tertinggi di Provinsi Jawa Barat. Perkembangan penyakit hawar daun bakteri dipengaruhi oleh kondisi iklim seperti suhu udara, curah hujan, dan kelembapan udara. Penelitian ini bertujuan menganalisis kondisi iklim Kabupaten Indramayu, Karawang, dan Subang terhadap perkembangan penyakit hawar daun bakteri. Analisis menggunakan model Climex 4.0, regresi linear berganda, dan nonlinear polinomial. Nilai ecoclimatic index wilayah kajian bernilai 33 hingga 98 yang berada pada klasifikasi kurang sesuai hingga sangat sesuai menunjukkan kondisi iklim wilayah kajian bervariasi untuk perkembangan penyakit hawar daun bakteri mulai dari kurang sesuai hingga sangat sesuai. Sedangkan nilai composite match index sebesar 0,6-0,9 tergolong tinggi menunjukkan kondisi iklim wilayah kajian sangat mirip dengan kondisi iklim Kabupaten Ciamis. Sehingga Kabupaten Indramayu, Karawang, dan Subang memiliki potensi perkembangan penyakit hawar daun bakteri yang tinggi seperti Kabupaten Ciamis. Faktor iklim kelembapan relatif memiliki pengaruh paling besar terhadap luas serangan penyakit hawar daun bakteri, dimana peningkatan kelembapan relatif akan meningkatkan luas serangan penyakit hawar daun bakteri.
Keyword: bacterial leaf blight, CLIMEX, composite match index, ecoclimatic index, Xanthomonas oryzae

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4