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JURNAL SAINS DAN TEKNOLOGI INDONESIA

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PENDEKATAN COASTAL CELL UNTUK PENGELOLAAN PANTAI KABUPATEN TEGAL JAWA TENGAH Syaefudin, Syaefudin
Jurnal Sains dan Teknologi Indonesia Vol. 10 No. 1 (2008)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Coastal Cell is new approach in coastal conservation and rahabilitation. According to this method the shoreline can be devided into several cells based on sediment budget or net sediment transport. The coastal damaged in Tegal and sourronding area mostly influences by human activities, such as coastal structures. The Tegal Coast is apart of Central Java Mega Cell Sediments, therefore to manage it must be integrated withboth side coastals (eastern side and western side). Soft solution approach such as sand by passing is the best approach to rehabilitation the Tegal coast .

RANCANG BANGUN PERANGKAT EKSPERIMENTASI PROSES PIROLISIS BIOMASA GELOMBANG MIKRO fachrizal, Noor
Jurnal Sains dan Teknologi Indonesia Vol. 14 No. 2 (2012)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Biomass such as agriculture waste and urban waste are enormous potency as energy resources instead of enviromental problem. organic waste can be converted into energy in the form of liquid fuel, solid, and syngas by using of pyrolysis technique. Pyrolysis process can yield higher liquid form when the process can be drifted into fast and flash response. It can be solved by using microwave heating method. This research is started from developing an experimentation laboratory apparatus of microwave-assisted pyrolysis of biomass energy conversion system, and conducting preliminary experiments for gaining the proof that this method can be established for driving the process properly and safely. Modifying commercial oven into laboratory apparatus has been done, it works safely, and initial experiments have been carried out, process yields bio-oil and charcoal shortly, several parameters are achieved. Some further experiments are still needed for more detail parameters. Theresults may be used to design small-scale continuous model of productionsystem, which then can be developed into large-scale model that applicable for comercial use.

SURVEI POTENSI PASIR KUARSA DI DAERAH KETAPANG PROPINSI KALIMANTAN BARAT Wicaksono, Noviarso
Jurnal Sains dan Teknologi Indonesia Vol. 11 No. 2 (2009)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Ketapang area is one of lower part or southern sub-province of West Kalimanatan Province, which is located geographically between 108o40’ and 111o20’ in Longitude and between 0o20’ and 3o04’ in Latitude. This area has various of industrial mineral resources, for example quartz sand. Quartz sand or also called with white sand is the reasult of rock weathering that contents main mineral, such as quartz, and felsdpar. Then, the result of weathering is cleaned and transported by water or wind and deposited in the stream side, lake or sea. In this paper will be described concerning to locations, characteristics, and usages of quratz sand in Ketapang area, West Kalimantan Province. Based on chemical or laboratory analysis and interpretation, the quartz sands can be used as glass industry, cement industry material, and moulding industry.

Ekstraksi Beta-Glukan Jamur Merang (Volvaria volvaceae) Widyastuti, Netty; Giarni, Reni; -, Donowati
Jurnal Sains dan Teknologi Indonesia Vol. 16 No. 1 (2014)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Beta glucan is a homopolymer of glucose are bound by ties of beta- (1,3) and beta - (1,6) glucosidal and is known as an immunomodulator. Beta glucan there is water soluble and alkali soluble. Some beta glucan has been isolated from fungi Basidiomycota. The aim of this study is to get beta glucan extract water-soluble and alkali-soluble from the straw mushroom (Volvaria volvacea). Results of analysis of beta glucan extract water soluble or alkali soluble, beta glucan showed the compounds characterized by FTIR group (Fourie Transform Infra Red) in the presence of an absorption band at wave number 896.90 cmÃ‚Â -1(beta glucan standard Sigma), 893.04 cmÃ‚Â -1Ã‚Â (beta glucan water soluble) and 893.04 cmÃ‚Â -1(beta glucan alkali soluble).Beta glukan merupakan homopolimer glukosa yang diikat melalui ikatan beta-(1,3) dan betaÃ‚Â Ã¢â‚¬â€œ(1,6) glucosidal dan dikenal sebagai imunomodulator. Beta glukan ada yang larut dalam air dan larut alkali. Beberapa beta glukan telah berhasil diisolasi dari jamur Basidiomycota. Tujuan dari penelitian ini adalah mendapatkan ekstrak beta glukan yang larut dalam air dan yang larut alkali dari jamurÃ‚Â Volvaria volvacea. Hasil analisa ekstrak beta glukan yang larut air ataupun larut alkali menunjukkan adanya senyawa beta glukan yang dicirikan dengan gugus FTIR (Fourie Transform Infra Red) dengan adanya pita serapan pada bilangan gelombang 896,90 cmÃ‚Â -1Ã‚Â (beta glukan standar Sigma) , 893,04 cmÃ‚Â -1(beta glukan larut air) dan 893,04 cmÃ‚Â -1Ã‚Â (beta glukan larut alkali).Keywords:Ã‚Â beta-glucan, immunomodulator, volvaria volvacea, water soluble extraction.

Teknologi Bahan Bakar Campuran Batubara Air Yang Ramah Lingkungan Supriyanto, Herry
Jurnal Sains dan Teknologi Indonesia Vol. 17 No. 3 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Several advantages can be obtained when the fuel is replaced or converted to fuels of coal water mixture. Among them, saving fuel economically and expand energy diversification and to overcome the problems of transport, distance, pollution, operational and environmental costs. The goal is to provide the raw material in the form of slurry for industrial purposes. With a low ash content (1.31% ash), the calorific value of about 6000kcal / kg, and HGI is quite high (64), the coal from acids, South Kalimantan enough to give a good prospect as a raw material for making CWF. CWF with conditions such as the content of coal: 60% additive: 0.30% Another advantage is the facility as the generator combustion chamber, the combustion chamber to produce steam and heat will save the cost or the price of oil is no longer affordable. Replacement of oil to coal water mixture can be done ketikaciri-physical characteristics approaching the physical characteristics of the oil. Such features can be achieved by destroying the coal into a fine powder of less than 75 micron mixed with water and additives MCM (methy Carboxy Cellulose), thus producing the desired fluid and durable stability of the mixture.Beberapa keuntungan dapat diperoleh ketika BBM diganti atau dikonversi dengan bahan bakar campuran batubara air. Diantaranya, penghematan bahan bakar minyak secara ekonomis dan memperluas diversifikasi energi dan untuk mengatasi permasalahan angkutan, jarak jauh, polusi, biaya oprasional dan lingkungan. Tujuannya untuk menyediakan bahan baku dalam bentuk slurry untuk keperluan industri. Dengan kandungan abu yang rendah (1,31% abu), nilai kalor sekitar 6000kcal/kg, dan HGI yang cukup tinggi (64), batubara dari Asam-asam, Kalimantan Selatan cukup memberi prospek yang baik sebagai bahan baku pembuatan CWF. Dengan kondisi CWF seperti kandungan batubara: 60% penambahan aditif : 0,30% Keuntungan lainnya adalah pada fasilitas ruang pembakaran seperti pada generator, ruang pembakaran menghasilkan uap dan panas akan menghemat biaya atau harga minyak yang tidak lagi terjangkau. Penggantian minyak ke bahan campuran batubara air dapat dilakukan ketikaciri-ciri fisiknya mendekati ciri-ciri fisik minyak. Fitur tersebut dapat dicapai dengan menghancurkan batubara menjadi bubuk halus kurang dari 75 micron dicampur dengan air dan aditif MCM (Carboxy Methy Cellulose), sehingga menghasilkan cairan yang diinginkan dan stabilitas campuran tersebut tahan lama.Keywords: additive, coal, water, technology using an eco-friendly, fuel.

PEMBIBITAN SECARA STEK-MINI TANAMAN MELATI [Jasminum sambac (L.) Aiton] Handayani, Titin
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The experiment aimed at maximizing the speed growth and number of plants obtained by the mini-steck of jasmine (Jasminum sambac (L.) Aiton) cv. Emprit. Changes in benzylaminopurine (BAP), indolebutiric acid (IBA), and “rooton” concentration.were evaluated. Branchs were used as the plant material source, which consisted of axillary buds obtained after careful excision of the leaves. The following treatments were tested: solid media (soil : sand = 1 : 1) with different BAP concentrations (0.1, 3 and 5 mg/kg), IBA (0, 100, 200 and 300 ppm/kg), and “rooton” (0, 100, 200 and 300 ppm/kg) The results showed that shoots growth slowly in the media suplemented with BAP, however, IBA 200 ppm/kg media is better. Rooton with 300 ppm/kg media showed best results for rooting induction.

ANALISIS EKONOMI DAN SEKTOR UNGGULAN UNTUK PENGEMBANGAN HALMAHERA TENGAH djarwadi, djarwadi; sunartono, sunartono
Jurnal Sains dan Teknologi Indonesia Vol. 13 No. 2 (2011)
Publisher : Badan Pengkajian dan Penerapan Teknologi

This study is conducted in 2008, is one part of the Spatial Planning of CentralHalmahera years 2009-2019. The analytical method used is the shift share and the location quotient. The data analyzed is the Gross Regional Domestic Product from Central Halmahera regency and North Maluku province. Shift share analysis results show that the economy of Central Halmahera grows faster that of the province of North Maluku. However economic growth was shifted from mining and quarrying sector to the agricultural sector. While the leading sector in Central Halmahera regency as still in the mining and quarrying sector, agricultural sector, and commerce and services sector.

ANALISIS KINERJA KELEMBAGAAN PEMBANGUNAN PULAU NATUNA Ambardi, Urbanus M.
Jurnal Sains dan Teknologi Indonesia Vol. 9 No. 3 (2007)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Natuna island is specified for an area called Integrated Economic Development Zone. As a pledge area in which the development is being prioritized for escalating regional economic growth, included surrounded area, local, regional, and even national as well. This based on the President Decree number 71 the year of 1996. The changes of government system in the era of “local autonomy” by enacted the Regulation number 22 the year of 1999 concerning Local Government, makes the role of Central Government has been decreasing. Therefore it is required a review regarding current institutional system and the relation between Local and Central Government. In order to get synergetic relationship mentioned above, the concept of future Natuna Island Institution should be formulated

PEMBANGKIT LISTRIK TENAGA HIBRID SEBAGAI SOLUSI KELISTRIKAN DI DAERAH TERPENCIL nurrohim, agus
Jurnal Sains dan Teknologi Indonesia Vol. 14 No. 2 (2012)
Publisher : Badan Pengkajian dan Penerapan Teknologi

In order to meet electricity demand, the role of Diesel Power Generation (PLTD) in parts of Indonesia is still very large. Currently, 34.30% of electricity demand in outside of Java-Bali system was supplied by the PLTD. Especially for the Eastern Indonesia (Nusa Tenggara, Maluku, and Papua), nearly 100% of its electricity comes from PLTD. For the next 10 years, the government planning through PT. PLN will install 252 MW of PLTD in Eastern Indonesia and 73 MW in Western Indonesia. Due to the increasing of oil prices in the world will directly increase the oil prices in Indonesia, so that the electricity generating cost from PLTD would alsoincrease. To reduce fuel consumption without reducing the service to the consumer, the construction of Diesel Power Generation should be integrated with renewable energy, like Solar Power and Wind Power to form the Hybrid Power Generation. By the Hybrid Power Generation, energy management can be controlled, so the using of diesel fuel can be more efficient. By applying of Solar Power and Wind Power in a quarter of the capacity of PLTD, the consumption of fuel could be reduced by 152million liters up to 2019, or an average of 15.2 million liters per year.

EVALUASI PENATAAN KAWASAN AMAN AKIBAT BENCANA TSUNAMI ACEH 26 DESEMBER 2004 CONTOH KASUS DI PANTAI KOTA MEULABOH, KABUPATEN ACEH BARAT Naryanto, Heru Sri
Jurnal Sains dan Teknologi Indonesia Vol. 11 No. 1 (2009)
Publisher : Badan Pengkajian dan Penerapan Teknologi

An exceptionally strong earthquake with magnitude 9 on the Richter scale struck Aceh on December 26, 2004 at 07.59 local time, followed by a very big tsunami. The earthquake epicenter was located about 149 km south of Meulaboh City in the Indian Ocean. The tsunami waves travelled at a speed of + 500 km/hour. Entire strips along west coast of Meulaboh City was wiped clean from surface of the earth, many people were reported dead or missing in Meulaboh. Houses, office andbusiness buildings, roads, recreation areas, utilities, and other infrastructure elements were devastated, damaged, or made useless from the coastal line until 2km to the land area. The coastal planning for sustainable development of tsunamiin the area is needed for reducing the damages and saving the people life.

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