Judul: Pembuatan Briket Arang Dari Campuran Kulit Kacang, Cabang Dan Ranting Pohon Sengon Serta Sebetan Bambu
Abstrak: Introduction. One of waste utilization or organic garbage is as raw material of charcoal briquette. Charcoal Briquette can support energy need of human. Charcoal Briquette can be made by material which contain lignin and cellulose like waste or organic garbage where can be got in human life like nutshell waste, logging waste of tree of sengon which has branches and sticks, and also waste of bamboo slice. Making charcoal briquette which comes from waste or organic garbage can be alternative solution for solving garbage and can be new alternative sources of energy. Method. Making charcoal briquette is prepared raw material at first. It is continued by processing combustion with kiln drum (temperature at 500oC-1000oC). Next, it uses crashing and buffering charcoal (filter at 35 meshs) to become dust which has charcoal size of 35 meshs or more. Making starch glue (5% derived from charcoal weight) is mixing and cooking tapioca flour with water (1:12). Charcoal Dust is mixed with starch glue and it will be printed by pressure at ± 9 tons to become charcoal briquette. Then, briquette is tested physical in properties (water content, density and pressure stability) and chemical characteristic ( ash content, volatile matter content, content of bounded carbon, calorie value). Result and Discussion. Result of test in physical and chemical properties of charcoal briquette showed water content average of 1,57%-2,18%, ash content of 10,92%- 15,09%, volatile matter content of 19,28%-41,36%, content of bounded carbon of 44,32%-66,48%, density of 0,40 g/cm3-0,53 g/cm3, pressure stability of 9,99 kg/cm2- 15,89 kg/cm2, and calorie value of 5175 cal/g-6299 cal/g. Conclusion. Mixing nutshell charcoal, branch and tree stick of sengon and bamboo slice could be made for briquette and it had high enough value in calorie (5175kal/g -6299 kal/g). Four briquettes which had been produced were only briquette of Nutshell charcoal of Bamboo Sengon (KKSB) which got quality standard of Japan charcoal briquette at calorie value (6299 cal/g). But, Four briquettes didn’t get standard of charcoal briquette of America, Indonesia and UK. Composition of mixture-charcoal influenced charcoal density and calorie value. Composition of mixture-charcoal didn’t effect charcoal water content, ash content, volatile matter content, content of bounded carbon and pressure stability value.
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Judul: Pemanfaatan limbah Tebu menjadi briket dan biopelet
Abstrak: Sugarcane (Saccharum officinarum) is one of Indonesia's main commodities that provide benefits for life. Sugarcane bagasse and leaves are major waste of sugar mills. Both of waste have not been optimally used. This research conduct a briquette procesing used bagasse and biopellet processing used sugarcane leaves. The aims of this study was to determine concentration of adhesive of briquette and to optimize biopellet process at compression temperature and time. Briquette was made by the addition of tapioca adhesive with concentration of 5, 10 and 15%. Biopellet made used compression temperature and compression time with compression temperature were varied iii from 130 - 270oC and compression time consisted of 8 - 22 minutes. The best briquettes treatment obtained at a concentration of 5% adhesive, with value of 3.87% moisture content, 3.35% ash content, 76.35% volatile matter, 20.29 fixed carbon and heat level 4155 kcal/kg. Sugarcane leaves biopellet has optimal at compression temperature of 250oC for 20 minutes. Compression with these conditions produced moisture content of 3.41%, ash content of 12.19%, compressive strength of 119.22 kgf/cm2 and heat level of 4490 kcal/kg.
Keyword: Bogor Agricultural University (IPB), bagasse, sugarcane waste, bioenergy, briquette, biopellet

Judul: Leukemia pada kucing
Abstrak: Leukemia pada kucing adalah suatu penyakit yang sangat patogen, disebabkan oleh sejenis virus. Virus ini dikenal sebagai Feline Leukemia Virus atau FeLV. FeLV ini oleh beberapa ahli dikatakan hanya bersifat ganas pada hewan kucing. Penularannya bisa secara horizontal maupun congenital. Kucing pada semua tingkat umur dapat terserang oleh FeLV ini. Khusus pada bentuk "thymic leukemia", virus ini hanya menyerang anak-anak kucing berumur diba- wah 1 tahun. Kucing-kucing liar atau yang tidak terpeli- hara jarang sekali terinfeksi FeLV. Selain dari serangan virus FeLV itu sendiri, maka penyakit leukemia ini bisa disebabkan oleh beberapa fak- tor yang sudah ada dalam tubuh hewan dan sangat menunjang perkembangan penyakit ini, yaitu antara lain tumor, agen toksik, cedera oleh kecelakaan dan gangguan hemopoiesis. FeLV menyerang sel-sel darah dalam tubuh hewan se- hingga pembentukan darah berjalan tidak normal. Terlihat sel-sel darah yang belum dewasa sudah beredar dalam sir- kulasi darah. Bentuk dan jumlahnya tidak lagi seimbang dalam tubuh hewan kucing tersebut. Gejala klinis antara lain kekurusan, ikterus, anemia, lemah, anoreksia, dyspnoe, sulit menelan, batuk, dan membran mukosa pucat. Selain itu kelenjar pertahanan tubuh juga membengkak, kemudian terjadi hepatomegali, spleenomegali dan pembengkakan pada ginjal. Terbentuk massa tumor pada beberapa tempat. Secara biopsy pada sumsum tulang akan terlihat be- berapa perubahan. Sumsum tulang berwarna merah tua atau abu-abu. Konsistensinya lunak dan terdapat banyak sekali memproduksi sel darah putih. Melalui gambaran darah leukemia ini lebih mudah didiagnosa. Jumlah retikulosit rendah sekali. PCV 8-15%, hemoglobin menurun, sel darah putih (WBC) meningkat, lim- fosit meningkat, Alfaglobulin juga ada peningkatan, dan banyak eosinofil yang belum dewasa beredar dalam darah…dst
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