131 research outputs found

    Diversity of Fish Species in the Pinang Dalam Lake, Buluh Cina Village, Siak Hulu Sub-Regency, Kampar Regency, Riau Province

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    A study on the diversity of freshwater fishes in the Pinang Dalam Lake wasconducted from January to March 2014. Fish samples were captured 4 times, once in 2weeks. This research aims to understand diversity of fish species, species of economicfreshwater fishes and decorated freshwater fishes in that area. Fish was captured using gillnet, seine, scoop-net, fishhook, fish trap and line fishing. The fishes captured were thendescribe and identified based on Saanin (1984) and Kottelat (1993) and they werephotograped. Result shown that the fishes are belonged to 3 orders, 11 families, 23genuses and 28 species. The fish collected are Barbodes gonionotus, B. Schwanefeldi,Cyclocheilichthys apogon, Hampala bimaculata, H. macrolepidota, Labiobarbusocellatus, Osteochilus hasselti, Oxygaster anomarula Puntioplites waandersi, Puntiustetrazona, Rasbora cephalotaenia, Thynnichtys polylepis, Botia hymenophysa, Mystusnemurus, M. nigriceps, Kryotopterus apogon, K. limpok, Ompok hypophthalmus, Wallagoleerii, Pangasius polyuranodon, Pristolepis grootii, Helostoma temminckii, Osphronemusgoramy, Anabas testudineus, Belontia hasselti, Trichogaster leerii, T. trichopterus andChanna micropeltes. Water quality parameters were as follows: temperature 28-290C,depth 130-450 cm, transparency 31-76 cm, pH 5, Dissolved Oxygen 4,10-6,56 mg/L

    Karakteristik Inovasi Terpakai dalam Peternakan Sapi Rakyat dan Pertanian Padi di Kabupaten 50 Kota Provinsi Sumatera Barat

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    Permasalahan kesenjangan antara kemampuan produksi daging sapi dan padi dengan kebutuhan konsumsi nasional yang tinggi telah mendorong penelitian ini dilakukan, guna dapat menjawab pertanyaan: (1) inovasi penting apakah yang terpakai dalam proses peternakan sapi dan produksi padi sekarang ini; (2) faktor –faktor yang mendukung inovasi tersebut diadopsi oleh peternak dan petani. Metode yang digunakan pada penelitian ini adalah metode survei dan analisa data sekunder. Jumlah responden dihitung menggunakan rumus Slovin berdasakan asumsi bahwa karakter populasi tidak diketahui. Dengan menetapkan derajat kepercayaan sebesar 90 persen maka diperoleh 60 jumlah responden yang harus diwawancarai. Pemilihan 60 responden dari 170 populasi dilakukan dengan metode systemic random sampling. Hasil penelitian menunjukkan bahwa peternak dan petani sudah diperkenalkan pada seperangkat inovasi yang saling mendukung. Para peternak dan petani mengadopsi inovasi secara selektif. Inovasi yang banyak diadopsi petani adalah bibit unggul dan teknologi inovasi lain yang sesuai dengan kebutuhan serta mudah diterapkan

    TRATKUL Solusi Cerdas Pakan Alternatif Peningkat Kualitas dan Kuantitas Telur Itik

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    Conch field / kakul a rice crop pest found in many parts of Indonesia, especially the paddy Cilacap. Keong more widely known as pests, in addition to the rice snail belonged to a water snail intermediate host Fasciola sp, the flatworm species that attacks the liver rather the duct biliverus ruminants (cattle, sheep, goats) However, paddy snails actually have very good nutrition if used properly, for example by providing rice field snails to ducks as an adjunct feed. With fairly high protein content, giving the rice field snails can provide addition of muscle mass, as well as an increase in reproductive hormones that will stimulate the improvement in quantity and quality of duct eggs. Contains nutrients intact with snail snail paddy rice has been processed to have differences. Conch rice has been processed to have a higher protein content. With so many complaints from farmers on rice field snails as well as opportunities for the utilization of plant pests such as duck feed rice in Indonesia, particularly in the Cilacap region is quite high, so we are motivated to make a PKM-K with the title "TRATKUL" Smart Solutions Enhancing Quality and Alternative feed for duck egg quantity, in order to create market demand for alternative feed that can improve the quality and production of duck eggs, as well as being answered unrest rice pests farmers will be quite difficult in this exterminate. Efforts to increase the quality and quantity of duck eggs and the creation of new alternative feed source is a business that is currently in great demand by many in Indonesia, particularly in the area of Cilacap. Because the reality of the community and the many fans of duck eggs or duck duck meat but the amount does not meet the market demand and the high price. With presence TRATKUL expected to deliver real results to the increase of weight quickly ducks and improving the quality and quantity of eggs that meet the needs of market will duck meat and duck eggs, as well as the utilization of the rice plant pests very detrimental to farmers. And of course create new jobs for the people of Indonesia, especially Cilacap. The method in this effort using two steps, namely : 1) Making and marketing TRATKUL with production houses in Maos Kidul, Maos, Cilacap,Central Java, 2) Preparation of small-scale duck farms as feed quality evidence TRATKUL with indications the number and quality of eggs produced and live weight gain of ducks

    Fractal analysis of electrical tree grown in silicone rubber nanocomposites

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    Electrical treeing is one of the main reasons for long-term degradation of high voltage insulation especially in the cable accessory which commonly made from silicone rubber due to non-uniformly structures of the cable accessories. Recently, the combination of nanofillers with the silicone rubber matrix can reduce the possibility of the electrical treeing to grow further by changing its patterns and slow-down its propagation. However, the influences of nanofillers on the tree hindrance and its patterns are not well understood. This paper explores the influence of nanofiller on tree pattern in silicon rubber. The electrical tree patterns were characterized using fractal analysis. The box-counting method was used to measure the fractal dimension and lacunarity to obtain the structure of the tree pattern during the electrical tree growth. The structure of the electrical tree in silicone rubber nanocomposites has higher fractal dimension and lacunarity. Sample with nanofiller possesses dominant fractal dimension of tree growth compared to the sample without nanofiller

    Analysis of transmission lightning arrester locations using Tflash

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    Tropical countries with extensive lightning activity, such as Malaysia, encounter numerous problems on their electrical transmission and distribution systems. Many overhead lines trip because of back flashover of lightning and shielding failures of the grounding system. To overcome the problem and improve transmission line performance, a detailed lightning study is required to analyse the corresponding lines and determine the best location for transmission line arrester (TLA) installation. We used TFlash to analyse a TLA installation on a 132-kV SSWW-BBST overhead transmission line system located in Selangor, Malaysia. Based on the results, the installation of the TLA at the optimum quantity and at appropriate towers have reduced the number of lines that trip

    Transmission-Lightning-Arrester : A Location Determination Using Tflash

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    The high density of lightning occurrence in Malaysiahas caused problems to transmission and distribution electricalenergy. Normally, transmission overhead lines trip due to BackFlashover (BF) of lightning and shielding failures of earth wire.Therefore, a detailed lightning study is required to analyse thecorresponding lines and to determine the exact location ofTransmission Lightning Arrester (TLA). In this paper, a simulationof lightning study using TFlash software associated with theinstallation of (TLA) at 132 kV SSWW-BBST overhead linessystem located in Selangor, Malaysia is presented. By using theTFlash software the location of TLA has been determine

    Generating Electricity using PV/FC Hybrid System

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    A reliable electrical energy supply is a prerequisitefor improving the standard economic and quality of life levels in acountry. As is the case in many countries, it is uneconomical toconnect these villages to the existing grid, the installation of standaloneelectrical power generators has become common practice. Asa result, diesel stand-alone power generators see widespread use inthese remote locales, which, whilst fit for their intended purpose,unfortunately suffer from several drawbacks, including instabilityin regards to everyday oil prices and a number of environmentalissues. The implementation of a PV/FC hybrid power system couldbe one potential alternative to help solve these problems. Therefore,this paper presents PV/FC system control strategies. This study isespecially important in terms of envisioning the future energysupply needs. By using HOMER the proposed control strategiesand suggested components of a PV/FC system would be able toproduce a satisfactory outcome

    Keanekaragaman Jenis Burung di Taman Nasional Betung Kerihun Kabupaten Kapuas Hulu, Provinsi Kalimantan Barat

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    This observation objection to cover bird diversity in Sibau Watershed, Betung Kerihun National Park (BKNP). The observation was done in along river (Sibau Rill, Sibau River, Apyang River, Menyakan River) and hill (Menyakan Hulu Hill and Apyang Hill) and point at transect. That habitat is riverine. Amount of bird was found are 93 species from 31 family with 39 species new record for Sibau Watershed. The large abundance is Edible-nest Swiftlet (Collocalia fuciphaga), and than folowwed by Asian Palm-swift (Cypsiurus balasiensis) and Whiskered Treeswift (Hemiprocne comata). The total individu was found is 660 individu with vaule of diversity index is 3.7618 and evennes index is 0.8299. The five bird species is endemic to the Borneo, one species is Appendix I CITES, 13 species is Appendix II CITES, 26 species is protected, and five species is treathened
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