Judul: Penumbuhan film BaxSr1-xTio3 dan BaFeSrTio3 dan observasi sifat ferroelektriknya
Abstrak: Hasil uji ferroelektrik menunjukkan bahwa semua sampel memiliki sifat ferroelektrik. Suhu annealing mempengaruhi nilai polarisasi remanen dan medan koersif sampel. Semakin tinggi suhu annealing maka nilai polarisasi remanen dan medan koersifnya akan semakin kecil karena ukuran butir yang semakin kecil. Suhu annealing memberikan pengaruh yang dominan terhadap nilai medan koersif dan polarisasi remanen. Hal ini karena semakin tinggi suhu annealing , semakin besar grain size yang dihasilkan menyebabkan medan koersif dan polarisasi remanennya sampel akan semakin tinggi. Suhu annealing yang terlalu tinggi juga dapat menyebabkan sampel men galami kerusakan yang mengakibatkan menurunnya nilai medan koersif dan polarisasi remanen sampel. Sampel film yang ditumbuhkan pada substrat Pt(200)/SiO2/Si(100), penambahan bahan pendadah menjadikan nilai medan koersif dan tegangan jatuh (breakdown volatge) film meningkat. Sedangkan untuk substrat Si(100) tipe-p, penambahan bahan pendadah tidak terlihat jelas karena sampel telah mengalami kerusakan.
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Judul: Pembuatan Film Tipis BaxSr1-xTiO3 dengan Variasi Fraksi Mol (x = 0; 0,125; 0,250; 0,375) Menggunakan Metode Chemical Solution Deposition
Abstrak: Pembuatan film tipis BaxSr1-xTiO3 dengan variasi fraksi mol ( x = 0; 0,125; 0,250; 0,375) menggunakan metode Chemical Solution Deposition dengan teknik spin coating telah berhasil dibuat di atas substrat Si (100) tipe-p dan diputar pada kecepatan 8000 rpm selama 60 detik. Proses annealing dimulai pada suhu ruang dengan kelajuan 1,67°C/menit hingga mencapai suhu 850 °C dan ditahan selama 8 jam, dilanjutkan dengan proses pendinginan selama 12 jam hingga mencapai suhu ruang. Ketebalan film dihitung menggunakan metode volumetrik dan dihasilkan nilai ketebalan 2,0983 μm; 2,7977 μm; 3,4971 μm dan 3,6545 μm. Hasil perhitungan menggunakan persamaan Cramer-Cohen diperoleh nilai parameter kisi a = b = c, yaitu 3,975 Å; 3,981 Å; 4,073 Å dan 4,094 Å dengan struktur kristal kubus. Hasil analisis menggunakan MAUD diperoleh visualisasi struktur kristal kubus dengan parameter kisi 3,919 Å; 3,932 Å; 3,951 Å dan 3,956 Å. Nilai energi bandgap yang dianalisis menggunakan metode Kubelka-Munk, yaitu 3,48 eV; 3,37 eV; 3,09 eV dan 3,05 eV., Fabrication of BaxSr1-xTiO3 thin films with various mol fractions (x = 0; 0,125; 0,250; 0,375) using the chemical solution deposition method with a spin coating technique has been successfully made on a p-type Si (100) substrate and rotated at a speed of 8000 rpm for 60 seconds. The annealing process begins at room temperature at a speed of 1,67°C/min until it reaches a temperature of 850°C and is held for 8 hours, followed by cooling process for 12 hours until it reaches room temperature. Film thickness was calculated using volumetric method and the results are 2,0983 μm; 2,7977 μm; 3,4971 μm and 3,6545 μm. The results of the calculation using Cramer-Cohen equation obtained that the lattice parameters a = b = c are 3,975 Å; 3,981 Å; 4,073 Å and 4,094 Å with cubic crystal structure. The results of the analysis using MAUD obtained a visualization of the crystal structure is cubic with lattice parameters are 3,919 Å; 3,932 Å; 3,951 Å and 3,956 Å. The values of bandgap energy that was analyzed using Kubelka-Munk method equation are 3,48 eV; 3,37 eV; 3,09 eV and 3,05 eV.
Keyword: BaxSr1-xTiO3, Kubelka-Munk, MAUD, mol fraction, thin film

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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