d view... enjoy it...
jiwandaru sang petualangRabu, 20 Juni 2007
Selasa, 19 Juni 2007
siluet
a photo from our friend,
siluet from JIWANDARU's d Petualang...
nice pic guys...
satu lagi,
setelah lelah bermain dan berenang,
berjejer membentuk satu garis kesatuan,
imagine we are d dots, we whom make d line...
yup U are d JIWANDARU's
Sabtu, 16 Juni 2007
d ICON
Hhi guys, this is d new icon logo of jiwandaru... so if u want to make sum graphic please include one of this logo.. to make sure your are one of us...Four Stripe which presentating the two mount, green as nature and black as "bold" of eiger, and white colour to make sure all of this fun you do it with your heart...
send us your opinion... jiwandaru@gmail.com / jiwandaru@insancendekia.org
okz guyz.. dats all for now... meet you in traine camp...
sincerely, ur friend
abie-jiwandaru
send us your opinion... jiwandaru@gmail.com / jiwandaru@insancendekia.org
okz guyz.. dats all for now... meet you in traine camp...
sincerely, ur friend
abie-jiwandaru
Tanah Jakarta Berpotensi Ambles Jika Terjadi Gempa 5 Mw
[Republika, 15 Juni 2007]
Jakarta-RoL -- Tanah Jakarta cukup berpotensi untuk ambles, longsor, dan kehilangan daya dukung terhadap fondasi bangunan dan infrastruktur di atasnya jika terjadi gempa dengan skala di atas 5 Mw dan dengan kecepatan gempa permukaan di atas 0,1 gal (80 cm per detik kuadrat).
"Jakarta merupakan kota yang dibangun di pesisir, khususnya area di utara Jakarta. Jadi sebagian tanahnya dari jenis pasir, bukan jenis lempung," kata pakar geoteknologi LIPI, Adrin Tohari di Jakarta, Jumat (15/6).
Tanah jenis ini jika ditambah syarat lain yakni bersifat lepas (tidak padat) dan jenuh air, lanjut dia, maka cukup berpotensi terkena likuifaksi atau suatu fenomena hilangnya kekuatan lapisan tanah akibat beban getaran gempa.
Pada peristiwa ini lapisan tanah pasir berubah menjadi cairan sehingga tidak mampu menopang beban bangunan di atasnya dan mengakibatkan antara lain, hilangnya daya dukung atau kegagalan pondasi jembatan, mengakibatkan ground settlement yang dapat menimbulkan penurunan pada bangunan dan ground oscillation yang dapat menimbulkan kerusakan pada jalan.
Likuifaksi juga menyebabkan flow failure atau longsoran lereng tanah yang menimbulkan kerusakan besar pada jalan yang berada di atas tebing, menyebabkan lateral spread atau perpindahan menyamping pada permukaan datar dan menimbulkan kerusakan pada bangunan dan jalan.
Likuifaksi juga membuat lapisan pasir menyembur (sand boiling) dan menyumbat sumur. Ia memberi contoh ketika terjadi gempa Yogyakarta, sumur-sumur menyemburkan pasir dan tersumbat sehingga warga Yogyakarta yang rumah-rumahnya hancur karena gempa makin menderita dengan kekurangan sumber air bersih.
Selain itu likuifaksi juga bisa menyebabkan bouyant rise of buried structures yang menimbulkan ledakan pada pipa gas atau tanki bahan kimia terpendam di dalam tanah.
Namun demikian studi tentang struktur tanah di Jakarta sangat minim, belum ada pemetaan area mana saja di Jakarta yang mengandung lapisan pasir lepas dan jenuh air yang berbahaya jika didirikan bangunan di atasnya.
"Kesulitan kami melakukan studi struktur tanah di Jakarta karena Jakarta sudah terlanjur padat dengan aspal, beton dan bangunan, padahal studi geologi perlu menggali dan membor lokasi-lokasi yang ingin diketahui," katanya.
Sumber gempa bagi Jakarta, ujarnya, bisa berasal dari subduksi di sepanjang barat Sumatera hingga selatan Jawa, sesar di Jawa Barat dan gempa Krakatau yang memiliki rentang umur ledakan sekitar 200 tahun.Ditanya soal kerawanan reklamasi pantai di utara Jakarta, menurut dia, bisa saja dibuat menjadi tidak rawan likuifaksi asal lapisan tanah di bawahnya dipadatkan. antara
Jakarta-RoL -- Tanah Jakarta cukup berpotensi untuk ambles, longsor, dan kehilangan daya dukung terhadap fondasi bangunan dan infrastruktur di atasnya jika terjadi gempa dengan skala di atas 5 Mw dan dengan kecepatan gempa permukaan di atas 0,1 gal (80 cm per detik kuadrat).
"Jakarta merupakan kota yang dibangun di pesisir, khususnya area di utara Jakarta. Jadi sebagian tanahnya dari jenis pasir, bukan jenis lempung," kata pakar geoteknologi LIPI, Adrin Tohari di Jakarta, Jumat (15/6).
Tanah jenis ini jika ditambah syarat lain yakni bersifat lepas (tidak padat) dan jenuh air, lanjut dia, maka cukup berpotensi terkena likuifaksi atau suatu fenomena hilangnya kekuatan lapisan tanah akibat beban getaran gempa.
Pada peristiwa ini lapisan tanah pasir berubah menjadi cairan sehingga tidak mampu menopang beban bangunan di atasnya dan mengakibatkan antara lain, hilangnya daya dukung atau kegagalan pondasi jembatan, mengakibatkan ground settlement yang dapat menimbulkan penurunan pada bangunan dan ground oscillation yang dapat menimbulkan kerusakan pada jalan.
Likuifaksi juga menyebabkan flow failure atau longsoran lereng tanah yang menimbulkan kerusakan besar pada jalan yang berada di atas tebing, menyebabkan lateral spread atau perpindahan menyamping pada permukaan datar dan menimbulkan kerusakan pada bangunan dan jalan.
Likuifaksi juga membuat lapisan pasir menyembur (sand boiling) dan menyumbat sumur. Ia memberi contoh ketika terjadi gempa Yogyakarta, sumur-sumur menyemburkan pasir dan tersumbat sehingga warga Yogyakarta yang rumah-rumahnya hancur karena gempa makin menderita dengan kekurangan sumber air bersih.
Selain itu likuifaksi juga bisa menyebabkan bouyant rise of buried structures yang menimbulkan ledakan pada pipa gas atau tanki bahan kimia terpendam di dalam tanah.
Namun demikian studi tentang struktur tanah di Jakarta sangat minim, belum ada pemetaan area mana saja di Jakarta yang mengandung lapisan pasir lepas dan jenuh air yang berbahaya jika didirikan bangunan di atasnya.
"Kesulitan kami melakukan studi struktur tanah di Jakarta karena Jakarta sudah terlanjur padat dengan aspal, beton dan bangunan, padahal studi geologi perlu menggali dan membor lokasi-lokasi yang ingin diketahui," katanya.
Sumber gempa bagi Jakarta, ujarnya, bisa berasal dari subduksi di sepanjang barat Sumatera hingga selatan Jawa, sesar di Jawa Barat dan gempa Krakatau yang memiliki rentang umur ledakan sekitar 200 tahun.Ditanya soal kerawanan reklamasi pantai di utara Jakarta, menurut dia, bisa saja dibuat menjadi tidak rawan likuifaksi asal lapisan tanah di bawahnya dipadatkan. antara
Pelletti II wood pellet heating with "mole"
Particularly suitable for the modernisation of old buildings and rooms with low ceilings
Karlsbad, 14.03.2007 - More and more builders and renovators are turning to future-proof wood pellet heating systems, and for good reasons. For one, heating with small wood pellets from natural wood shavings makes heating independent of fluctuations in fossil fuel prices and, secondly, only an extremely small amount of wood pellets need to be used thanks to innovations in combustion technology. Two handfuls of wood pellets are enough to bring ten litres of water to the boil, for instance, or for a four minute shower. Every seventh pellet boiler in Germany already bears the "Pelletti" name and comes from Paradigma Energie- und Umwelttechnik GmbH & Co. KG, according to a press release from the company. As a compact three-pass boiler with integrated regulator, the Pelletti offers almost the same comfort as modern gas and oil heating.
Karlsbad, 14.03.2007 - More and more builders and renovators are turning to future-proof wood pellet heating systems, and for good reasons. For one, heating with small wood pellets from natural wood shavings makes heating independent of fluctuations in fossil fuel prices and, secondly, only an extremely small amount of wood pellets need to be used thanks to innovations in combustion technology. Two handfuls of wood pellets are enough to bring ten litres of water to the boil, for instance, or for a four minute shower. Every seventh pellet boiler in Germany already bears the "Pelletti" name and comes from Paradigma Energie- und Umwelttechnik GmbH & Co. KG, according to a press release from the company. As a compact three-pass boiler with integrated regulator, the Pelletti offers almost the same comfort as modern gas and oil heating.This innovative company from Karlsbad is now offering the "Pelletti II" complete package with all accessories and the Sonnen-Pellet Maulwurf retrieval system. Specifically, this "Made in Germany" combination package consists of the SystaComfort heating regulator, the Sonnen-Pellet Maulwurf retrieval system, a filling set, an impact protection mat, a suction and return-air pipe, a flow plate and mounting parts. The retrieval system is a special feature of the new complete package. It "digs" through the stored pellets like a mole and retrieves these as needed for the boiler. Paradigma have emphasised that this simple "visible" technology operates quietly and cleanly and with low energy usage. It allows for pellets to be extracted sparingly from the top so that there is no loss of quality.
Furthermore, this "mole" system can also accommodate approx. one third more filling volume in the same storage space and facilitates a high degree of spatial usage as there are none of the usual cavities in the storage area. Paradigma believes the Sonnen-Pellet Maulwurf retrieval system is particularly suitable for the modernisation of old buildings and rooms with low ceilings. A separate dry storage room or the PelletonMaulwurf fabric silo, which has been specifically designed for the new retrieval system, are suitable for storing the pellets. This dust-proof fabric silo with integrated Sonnen-Pellet Maulwurf retrieval system can be purchased in five different sizes. A closable access opening at the front of the silo ensures it is easy to maintain. Pelletti II with the Sonnen-Pellet Maulwurf retrieval system is available immediately from any of the more than 700 Paradigma specialist workshops nationwide.
Further information:
Paradigma Energie- und Umwelttechnik GmbH & Co.
KGEttlinger Str. 30
76307 Karlsbad
GermanyTel. 07202 / 922 - 0
Fax: 07202 / 922 - 100
http://www.paradigma.de/
info@paradigma.de
[diambil dari http://www.german-renewable-energy.com/Renewables/Navigation/Englisch/Service/aktuelles,did=196290.html ]
Furthermore, this "mole" system can also accommodate approx. one third more filling volume in the same storage space and facilitates a high degree of spatial usage as there are none of the usual cavities in the storage area. Paradigma believes the Sonnen-Pellet Maulwurf retrieval system is particularly suitable for the modernisation of old buildings and rooms with low ceilings. A separate dry storage room or the PelletonMaulwurf fabric silo, which has been specifically designed for the new retrieval system, are suitable for storing the pellets. This dust-proof fabric silo with integrated Sonnen-Pellet Maulwurf retrieval system can be purchased in five different sizes. A closable access opening at the front of the silo ensures it is easy to maintain. Pelletti II with the Sonnen-Pellet Maulwurf retrieval system is available immediately from any of the more than 700 Paradigma specialist workshops nationwide.
Further information:
Paradigma Energie- und Umwelttechnik GmbH & Co.
KGEttlinger Str. 30
76307 Karlsbad
GermanyTel. 07202 / 922 - 0
Fax: 07202 / 922 - 100
http://www.paradigma.de/
info@paradigma.de
[diambil dari http://www.german-renewable-energy.com/Renewables/Navigation/Englisch/Service/aktuelles,did=196290.html ]
First biomethane plant with a feed into the natural gas network
Regensburg, May 15, 2007 - The Aufwind Schmack Group has opened a biomethane plant in Pliening, a trailblazer on the path to sustainable energy production. Biogas composed of biomethane is fed directly into the natural gas network of the Stadtwerke München (Munich's public utility company) here. Since December 2006, Bavaria's first and largest biomethane plant (in Pliening, east of Munich) has been producing biogas from raw materials. Biomethane is generated by using a pressure swing adsorption process. This is fed into the natural gas network of Stadtwerke München. This is a first-off, as Stadtwerke München is now the first energy supply company in Germany to have made its natural gas network available for transporting biomethane. The biomethane plant in Pliening is a project of RES Renewable Energy Systems GmbH from Munich and Aufwind Schmack GmbH Neue Energien. The plant is being financed and run with funding from the Aufwind Schmack Group, the Hessian State Bank and Lacuna AG. With E.ON Bayern AG, the project has a long-term bulk purchaser for the biomethane on its side.
Some 3.9 million standard cubic metres of biomethane and around 43 million kilowatt hours of energy will be produced annually for the natural gas network. Ferdinand Schmack, the CEO of Aufwind Schmack GmbH Neue Energien, which is responsible for planning and operating the plant, says that this corresponds to the annual natural gas use of approx. 1300 single family dwellings. He described the advantage of biomethane over biogas: "While biogas must be used locally to generate electricity, biomethane can be transported over the existing pipeline infrastructure and can be used like natural gas." Maschinenring Ebersberg e.V. is the local project partner and logistician for the biomass. Stadtwerke München is building on its commitment to renewable energy. One building block is the incorporation of biogas into its "natural gas fuel". Since April, 20 percent of this fuel has been made up of biogas at the energy supply company's petrol pumps in Von-Kahr-Straße 1 and Kreillerstraße 220. This should be possible for all natural gas pumps of the energy supply company in the coming year.
Some 3.9 million standard cubic metres of biomethane and around 43 million kilowatt hours of energy will be produced annually for the natural gas network. Ferdinand Schmack, the CEO of Aufwind Schmack GmbH Neue Energien, which is responsible for planning and operating the plant, says that this corresponds to the annual natural gas use of approx. 1300 single family dwellings. He described the advantage of biomethane over biogas: "While biogas must be used locally to generate electricity, biomethane can be transported over the existing pipeline infrastructure and can be used like natural gas." Maschinenring Ebersberg e.V. is the local project partner and logistician for the biomass. Stadtwerke München is building on its commitment to renewable energy. One building block is the incorporation of biogas into its "natural gas fuel". Since April, 20 percent of this fuel has been made up of biogas at the energy supply company's petrol pumps in Von-Kahr-Straße 1 and Kreillerstraße 220. This should be possible for all natural gas pumps of the energy supply company in the coming year.
Further information:
Aufwind Schmack GmbH Neue EnergienSchwandorfer Straße 1293059 Regensburg
Aufwind Schmack GmbH Neue EnergienSchwandorfer Straße 1293059 Regensburg
Phone:+49 (0)941 / 698730-17
Fax:+49 (0)941 / 698730-50
Internet: http://www.aufwind.com/
Jumat, 06 April 2007
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