Judul: Pengaruh Jenis Kelamin Terhadap Lama Rekondisi Domba Ekor Gemuk yang diberi Ransum komplit
Abstrak: The main purpose of this research was to know the right time to reach of recondition and influence of recondition at different sex of fat tailed sheep with variables such as daily body weight gain, feed consumption and feed conservasion. These lambs feed by giving complete feed which is always available. This research was carried out in Mitra Tani Farm, Tegalwaru Ciampea Bogor for 4 weeks. Five males and five females fat tailed sheep aged more or less than 1 year with average body of 19,8 kg-23,8 kg. In this research Randomized Complete was used. The lambs were housed in individual pen. The result shows that various sex did not influence on the time of recondition, daily body weight gain, feed consumption and feed conversion (P>0.05) during recondition happened. Male fat tailed sheep got recondition at the 21 st day while female fat tailed sheep got recondition at the 25 th day
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Judul: Performa Dan Morfometrik Domba Ekor Gemuk Dengan Pemberian Pakan Konsentrat Dan Limbah Tauge Pada Taraf Pemberian Yang Berbeda
Abstrak: Performance and morphometric are a description of conditions which reflect the growth and development of livestock. Generaly, these are influenced by genetic and environmental factors. Genetically, fat tailed sheep is one of a local sheep, which is fast in growth and can adapt in the tropical climate. Feed is one of the environmental factor, which can influence the growth. This research was conducted to determine the performance and morphology of fat tail sheep male (under one year old) that fed by concentrate and sprouts waste at different levels, they were P1 = 100% concentrate + 0% sprouts wastes, P2 = 75% concentrate + 25% sprouts wastes, P3 = 50% concentrate + 50% sprouts wastes and P4 = 25% concentrate + 75% sprouts wastes. The sheep were classified into two groups are small and large body weight. The Data were analyzed using randomized block design with four treatments and two blocks. The results of this research show that the treatments had significantly (P<0.05) influenced the sheep performance but they do not have significant result on the sheep morphometric.
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Judul: Pemodelan Generasi Harmonik Ketiga pada Kristal Perovskite (MAPbI3) Menggunakan Model Ikat Hiperpolarisabilitas Sederhana .
Abstrak: Methylammonium Lead Iodide (MAPbI3) merupakan material perovskite bersifat semikonduktor dengan bentuk kristal ortorombik pada struktur permukaan dan tetragonal pada struktur bulk kristal di suhu ruang dan memiliki respon nonlinier ketika dikenai sinar intensitas tinggi. Tujuan dari penelitian ini adalah mengkarakterisasi MAPbI3 dari segi respon optiknya ketika dikenai medan masukan, dan membuat model dari respon harmonik ketiga pada material tersebut untuk sembarang polarisasi, serta menguraikan intensitas radiasi third harmonic generation (THG) dalam bentuk grafik dan persamaan intensitas menggunakan model ikat hiperpolarisabilitas sederhana (SBHM). Perhitungan intensitas THG dimulai dengan menentukan vektor-vektor ikatan atomik dan mencari tensor suseptibilitas material serta membandingkan hasil tensor dengan tensor literatur. Kemudian intensitas dicari meggunakan persamaan polarisasi yang juga akan menghasilkan persamaan medan jauh dan intensitas. Analisis fase intensitas dilakukan berdasarkan grafik yang dihasilkan. Terdapat 4 puncak bernilai nol setiap kelipatan 90° pada polarisasi s-s dan p-p dan 8 puncak bernilai nol setiap kelipatan 45° pada polarisasi s-p dan p-s. Simetri permukaan dan bulk memiliki grafik fase yang sama.
Keyword: MAPbI3, generasi harmonik ketiga, model ikat hiperpolarisabilitas sederhana, optika nonlinier