Wednesday, October 29, 2008 at 3:29 AM Posted by ..
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Teknologi | Cara Kerja | Pengiritan |
VVT & L (variabel valve timing and lift) | Katup mengontrol aliran campuran udara dan bahan bakar yang masuk dan keluar dari silinder. Lama katup membuka, ditentukan oleh jadwal dan tinggi angkatnya. Jadwal buka dan tinggi angkat katup pada putaran rendah dan tinggi ditentukan secara optimum. Desain tradisional, menggunakan waktu dan tinggi angkat yang dikompromikan untuk putaran rendah dan tinggi. Teknologi VVT jadwal dan tingkat angkat katup berubah-ubah sesuai dengan putaran mesin. Hal ini membuat kerja mesin jadi lebih efisien. | 5% |
Mematikan silinder (cylinder deactivation) | Disebut juga multi-kapasitas. Teknologi ini hanya menon-aktifkan beberapa silinder ketika mesin hanya membutuhkan sedikit tenaga untuk bergerak. Misalnya saat lalu lintas macet. Caranya kerjanya, mesin 8 dan 6 silinder, yang dipakai hanya 4 dan 3 silinder. Teknologi ini tidak digunakan pada mesin 4 silinder. Kalau dipaksakan menyebabkkan mesin batuk-batuk. | 7,5% |
Turbo & Supercharger | Turbo dan supercharger adalah kipas yang memaksa udara masuk ke dalam mesin. Turbo memanfaatkan gas buang dari mesin, sedangkan supercharger digerakan oleh mesin. Kedua teknologi memungkinkan jumlah udara dan bahan bakar yang dimasukkan ke dalam silinder lebih banyak dan menghasilkan tenaga lebih besar. Sedagkan ukuran mesin relatif tetap kecil. | 7,5% |
ISG (intergrated starter & generator) | Sistem secara otomatis mematikan mesin ketika kendaraan berhenti dan menghidupkannya kembali ketika pedal gas ditekan. Demikian saat berhenti tak ada bahan bakar yang dibakar. Teknologi ini digabungkan dengan mengubah energi kinetik menjadi listrik saat mobil direm. Caranya, energi kinetik diubah menjadi listrik, disimpan di dalam baterai dan nantinya digunakan lagi ketika diperlukan. Teknik ini hanya digunakan pada mobil hibrida. | 8% |
Injeksi langsung dengan turbo dan supercharger | Injeksi bahan bakar langsung (bensin) juga dikenal dengan GDI (gasoline direct injection). Kalau dilengkapi dengan turbo atau supercharger disebut “fuel stratified injection atau direct injection charge”). Pada sistem injeksi dengan multi-injektor konvensional, bensin disemprotkan ke lubang dekat katup untuk bercampur dengan udara. Setelah itu baru dimasukkan ke dalam silinder. Pada injeksi langsung, bahan bakar disemprotkan langsung ke ruang bakar. Dengan teknik ini, jadwal semprotan dan bentuk campuran lebih presisi. Perbandingan kompresi bisa lebih tinggi, kerja mesin pun makin efisien. | 11 – 13% |
CVT (continuously variable transmission) | Perbandingan gigi tidak dibatasi, akselerasi mulus dan meningkatkan konsumsi bahan bakar. | 6% |
AMT (Manual transmisi yang dioperasikan secara otomatis) | Mengabungkan efisiensi transmisi manual dengan pergantian gigi secara otomatis. | 7% |
Saturday, October 18, 2008 at 12:38 AM Posted by ..
The 1.3 Megapixel USB Digital Microscope is a neat gadget for science geeks. Plug the microscope into any USB port to see magnified objects from 10X up to 200X at your desk. According to SourcingMap, the digital microscope can save pictures up to 1280x1024 pixels in JPG format, or in AVI format at 30fps under 600 LUX brightness.
Check out the video to see the USB digital microscope in action, but be prepared for the cheesy music that accompanies the demo.
Friday, October 17, 2008 at 1:21 AM Posted by ..
Mechadroid Type C3
This robot was drafted as the receptionist's robot. Mechadroid Type C3 had fitur unique. That is, knew the face of the guests who were faced with him. When being launched in this exhibition, C3 appeared clear. In his head was seen the picture of two eyes and a smile line. C3 brought a LCD screen contained information that was needed by the customer.
Nissan BR32C
When travelling in the road, the security was the factor that must be given priority. Nissan as one of the automotive manufacturers famous in
Ifbot
The development of the number of old residents in
Fujitsu Enon
Fujitsu Enon not like the robot most. He was not drafted only to serve, cleaned, or berpatroli. It was more special, he could carry out all of them at the same time. For example when being professional as the shop assistant. When being faced with someone, Enon will detect the presence and approached him. He will give various information about the product at the same time showing his object. The LCD screen in the chest part served heterogenous the picture, followed what was said by Enon
Wednesday, October 15, 2008 at 11:24 PM Posted by ..
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Samsung said his side will sell laptop him in the partnership with the network ritel the
Monday, October 13, 2008 at 12:56 AM Posted by ..
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The New York Times is reporting that Sunnyvale, Calif.-based AMD will split into two companies. One will focus on designing microprocessors, while the other will focus on the business of manufacturing them. The plan, articulated by AMD management earlier this year, is what the company must do to survive against the newly resurgent Intel.
Under the deal, two Abu Dhabi investment companies will invest $6 billion into both companies so that AMD can build a planned factory near Albany, N.Y., and upgrade a Germany factory. AMD will own 44.4 percent of the new entity, to be named the Foundry Company. The Advanced Technology Company, formed by the Abu Dhabi government, will own the rest.
AMD put up a valiant fight against Intel, starting in 2003, when it launched the Opteron processor. The design was both energy and memory efficient, helping to cut electricity costs just as they were spiraling out of control for data center managers. It took years for Intel to recover.
But the world’s biggest chip maker had many times more engineers than AMD and far more money to pour into factories. In 2006, Intel came up with a better chip design, based on its Core architecture. It retook just about all of the market share that AMD had gained.
Intel’s resurgence made this outcome inevitable. AMD lost money and was on the ropes; in June, it had $5.3 billion in debt and $1.6 billion in cash. The investment in the chip-making process for upcoming 45-nanometer factories is so big that chip makers would have to generate $13 billion over five years to justify the investment.
Now it has come to this. Intel will be competing against foreign governments. They are so far willing to put up the multibillion-dollar ante that it takes to compete head on with Intel. The Foundry Company will make chips for AMD and other customers too. It will in effect be a contract chip manufacturer and it will license chip manufacturing processes from IBM.