Judul: Pembuatan Nanokarbon dari Limbah Baterai untuk Aplikasi Elektroda pada Superkapasitor
Abstrak: Carbon material is waste battery electrodes for supercapacitors are high potentially, since it has a high surface area, good chemical stability, and high conductivity. These carbon-based electrodes are promising candidates for energy storage devices with high performance is supercapacitor. Supercapacitor which has great potential in the storage of electrical charge, so it can be used as of equivalent fuel oil for motor vehicles, but it also wastes the battery can be recycled, thus reducing the danger of environmental pollution and public. Carbon material waste converted into nano-size batteries using High Energy Milling (HEM), to find out in the form of nano size using Particle Size Analyzer (PSA) produced 148.54 nm particle size. Furthermore, carbon material is a mixed nano size Poly (vinylidene fluoride) Polytetra and 1-methyl-2-pyrrolidone, glued in stainless steel. Results of carbon morfology form characterized using Scanning Electron Microscopy (SEM), crystallinity characterization of structures using X-Ray Diffraction (XRD), with a conductivity value of 7374.00 S/m. This suggests that carbon is a semiconductor material. Results of capacitance value with potentiostat 179.40 F/g for scan rate 5 mV/s.
Keyword: PSA, potentiostat, Carbon waste batteries, HEM, supercapacitor electrodes

Judul: Pembuatan karbon aktif dari strobilus pinus (Pinus merkusii) sebagai elektroda superkapasitor
Abstrak: Superkapasitor merupakan salah satu perangkat penyimpanan yang saat ini banyak diteliti karena memiliki keunggulan jika dibandingkan dengan kapasitor konvensiaonal. Pada penelitian ini dibuat superkapasitor dengan menggunakan elektroda yang terbuat dari karbon aktif, yang memanfaatkan strobilus pinus atau lebih dikenal dengan bunga pinus. Strobilus pinus terlebih dahulu dikarbonisasi dan diaktifasi secara kimia dan fisika. Dengan variasi KOH (1 N, 3 N, 5 N) yang dilakukan untuk memperlihatkan perubahan dari karakteristik karbon aktif. Selanjutnya karbon aktif yang telah dibuat diukur resistansinya dengan menggunakan LCR, untuk selanjutnya dikarakterisasi dengan XRD untuk melihat perubahan struktur kristal yang terjadi. Selanjutnya karbon aktif dibentuk menjadi elektroda dengan mencampurkan Poly (vinylidene fluoride) polytetra dan 1-methyl-2-pyrrolidone, yang kemudian diletakan diatas stainles steel. Selanjutnya dilakukan pengukuran besarnya nilai kapasitansi elektroda yang didapat dengan menggunakan potensiostat. Besarnya kapasitansi yang didapat adalah sebesar 0.118 F∙g-1 pada elektroda dengan variasi KOH 3 N yang diukur pada laju 10 mV∙s
Keyword: Electrodes, activated carbon, supercapacitors, strobilus pine

Judul: Ragam jenis ektoparasit burung tekukur (Streptopelia chinensis) dan burung puter (Streptopelia bitorquata) di penangkaran
Abstrak: Spotted dove and Javan turtle dove are the bird species that are easily raised in captivity. Nevertheless, good management is required to successfully breed and raise the birds in captivity; otherwise, the condition may endanger the sustainability of the two bird species. Information on ectoparasites on the bodies of this bird as well as their captivity breeding has not been available, although admittedly taking ectoparasites from these bird families has much been done so that a research is obviously needed. This study aimed to find out various kinds of Spotted dove and Javan turtle dove ectoparasites and to learn various kinds of parasitic insects around the Spotted dove and Javan turtle dove cages. The study was conducted from April to June 2010. The methods of data collection included the general condition of the location, collection of ectoparasites specimens, processing and specimens identification. The data analysis was done descriptively and tabulated with the degree of infestation. The kinds of ectoparasites from the class of insects found in the body of Spotted dove were Goniocotes sp. and Columbicola columbae of phthiraptera order and Pseudolynchia canariensis of diptera order, and arachnida class, that is, tungau from the pterolichidae family. In terms of ectoparasites, Spotted dove and Javan turtle dove were similar, except that Javan turtle dove had no Pseudolynchia canariensis. Goniocotes sp. and Columbicola columbae were mallopaga order (biting lice) and were obligate. The kinds of parasitic insects in the vicinity of Spotted dove and Javan turtle dove cages were from the Ordo Diptera. The diptera classified as parasites included Anopheles, Culex, Psychodidae, Culicoides and Simulium, most of them vectors of disease. The presence of ectoparasites was closely related to how a breeding place is managed.
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