Judul: Analisis Tensor Suseptibilitas Rank-3 Kristal Perovskite (MAPbI3) Menggunakan Teori Grup dan SBHM.
Abstrak: Peninjauan struktur kristal MAPbI3 dilakukan melalui Teori Grup dan metode SBHM (Simplified Bond Hyperpolarizability Model). Kedua metode perhitungan analitik tersebut merepresentasikan karakterisasi MAPbI3 yang berfokus pada konsep radiasi nonlinier orde kedua ditinjau pada sisi permukaan serta bulk pada kristal. Proses ini dilakukan dengan menganalisis hasil akhir tensor suseptibilitas nonlinier dari permukaan (point grup C2V) dan bulk (point grup D4h) kristal perovskite dengan literatur tensor yang didapatkan dari pemodelan SBHM. Pemodelan SBHM dilakukan untuk menentukan vektor ikatan kristal hingga didapatkan tensor suseptibilitas yang selanjutnya dibandingkan dengan tensor hasil teori grup untuk mengetahui kesesuaian keluaran yang dihasilkan. Hasil analisa menunjukkan adanya tiga komponen independen yang mempengaruhi simetri permukaan dan nol pada simetri bulknya. Hal tersebut terjadi karena terdapat simetri invers pada bulk yang bersifat sentrosimetrik atau tidak dapat memperlihatkan interaksi optik nonlinier ketika diberi gangguan medan elektromagnetik.
Keyword: perovskite MAPbI3, simplified bond hyperpolarizability model, simetri, teori grup, tensor suseptibilitas

Judul: Separation of Isotropic and Anisotropic Tensor for MAPbI3 Perovskite Crystal Using Group Theory and Simplified Bond Hyperpolarizability Model.
Abstrak: Nonlinear phenomena occur when the electric field from a coherent and high-intensity light source interacts with the atoms in the material so that it oscillates anharmonically along the bond. Optical nonlinearities can be used as a method for analyzing the structure of optoelectronic materials such as perovskite. MAPbI3 is an optoelectronic material that has advantage in conservation efficiency, at room temperature MAPbI3 has an orthorhombic structure with C2v group points on the surface and D4h in the bulk perovskite section. This research separates the isotropic and anisotropic susceptibility tensors in the case of the second harmonic generation and the third harmonic generation and analyzes their contribution to total polarization. there are 6 isotropic non-zero tensor components and 13 non-zero anisotropic components in the C2V rank-3 structure and zero isotropic and anisotropic components in the D4h rank-3 structure. whereas there are 21 isotropic non-zero components at rank-4 of both structures and 20 and 8 non-zero anisotropic components at rank-4 surface and bulk perovskite. the contribution of 2nd order total polarization only occurs in anisotropic while for 3rd order, polarization isotropic and anisotropic contributing to total polarization
Keyword: Anisotropi, Isotropic

Judul: Manajemen Pemeliharaan Kuda (Equus caballus) Untuk Upacara Kenegaraan Dan Sarana Kesenjataan Di Detasemen Kavaleri Berkuda (DenKavkud) TNI-AD Parongpong
Abstrak: Cavalry Horse Detachement (Denkavkud) Indonesian National Army-Cavalary Parongpong is one of the Indonesian military units that utilize the horse and train it as a means of purpose of formal state ceremony and armed forces. Skills possessed by the horse cavalry was the result of care management and specialized training provided by the trainer. Aspects of care management are breeding, feeding, and management. Horses that are kept in the Denkavkud, Parongpong are stallions, mares, foals, and military horses. Total populations of horses at Denkavkud are 183 horses. Besides commited horse training (remonte), Denkavkud also did breeding program to produce horses that can be trained and used as a military horse. There are some issues contained in Denkavkud, such as some of the nutrients needed by the horses not being met from feed given. One of these is crude protein and lysine. Lactation mares was crude protein and lysine deficiency. The number of death in 2010 is higher than previous years. Based on the number of horses that died from January until June 2010 is 11 horses. The average mortality was caused by colic. Colic is caused by excessive eating, excessive drinking during hot, moldy food, and even by investment roundworms. Animal welfare in Denkavkud can be enhanced by improvement of feed given and improving the health of livestock through improved sanitation.
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