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Thursday, April 11, 2013

Imaging Nanotechnology Revolution

nano technology
Lead author of the study, Wenge Yang of the Carnegie Foundation's high-pressure synergistic Consortium explained: "the only way to see what will happen in such a sample when under pressure is to use high-energy x-rays produced from Sygchrotro sources. Synchrotrons can provide very coherent x-rays for advanced 3-D imaging with dozens of nanometers of resolution. This is different from the incoherent imaging test that is used for medical examination that has the spatial distribution of micron. The high pressures have radically changed many properties of matter. "

The team found that the average motifs of bent waves--diffraction patterns--the same Crystal using a different sample of alignments in orchestration, and using an algorithm developed by researchers at the London Centre for nanotechnology, can compensate for the distortion and improving the spatial resolution of the two sizes.

"The problem of distortion of the wave is proportional to the prescription glasses for the diamond anvil cell to correct the vision of the coherent x-ray imaging system," noted Ian Robinson, head of the London Group.

Researchers in a single crystal of 400-nanometer (. 000015 inch) of gold by about 8,000 times the pressure at sea level, to 64,000 times that pressure, which is about the pressure in the Earth's upper mantle, the layer between the outer core and crust.

The Group conducted the imaging experiment the Advanced Photon Source, Argonne National Laboratory. Will compress the gold nanocrystal and found, as expected, that the ends of the Crystal becomes sharp and strained. But to their surprise, the executives who disappeared from further compression. The crystal grows a rounder figure in higher pressure, implying an unusual plastic-like flow.

"Nanogold particles are very useful materials," Yang noted. "It is about 60% stiffer in comparison with other micron particle size and could prove to be fundamentally improved to build improved electrodes, nanoscale molecular coatings, and other advanced engineering materials. The new technique will be critical to progress in these areas. "

"Now that it has solved the problem of distortion, the entire construction sector nanocrystal under pressure can be approached," said Robinson. "The scientific mystery of why Nanocrystals under pressure is somehow up to 60% stronger than bulk material can be soon collapsed.
Imaging Nanotechnology Revolution

Wednesday, April 10, 2013

Electronic implants: New fast battery Recharger and invasive transdermal energy feeder

electronic implants
According to the World Health Organization, cardiovascular disease is the leading cause of deaths. In a last resource, patients with cardiovascular disease should be assisted through the surgery and medical devices, to help them to perform the essential functions. However, medical devices, such as a pacemaker that sends electrical impulses to the heart muscle to maintain an adequate heart rate and rhythm, you need a power source and the battery ran out just demanded a surgical procedure that is similar to the original implant to replace the device.

With non-invasive battery recharger for electronic cardiac implants the need for a new surgery is reduced, since this primes from being rechargeable, meaning the patient will not have to throw away after changing batteries every five to seven years, since these are rechargeable by irradiant electricity passing through the body. António Abreu adds that "the non-invasive battery also allows for an adjustment of energy consumption of heart implants, so energy consumption can be set to adjust the function and pathology patients and activity. Ensure the power supply of a communication channel between the exterior for diagnosis and/or reprogramming of the implant. In this case, there will be no demand for energy from the internal battery. "

The principle of operation is the use of a high efficient transdermal system power. However, these typically use electronic converter systems witch create risk of Electromagnetic interference (EMI) that harms the implants in patients. The presentation of innovative ideas that take account of energy efficiency in electrical transmission systems without ferromagnetic cores, and about the medical application. In practice, eliminating the phenomena of Gibbs.

The invention optimizes the flow of energy that is determined by the status of the Explorer Preview in innovative design abacus to forecast-correction.

The abacus is a prediction-correction representation in the complex pattern of a situation where a specific cargo is provided by an electric energy to the active power p and reactive power Q. What characterizes this abacus is the occasion of taking into account the effect of the reaction and resistance of the longitudinal transmission lines that are evident in the number of corner parts position lines that proliferate in first and second quarters of the Argand plan. The best location of the lines sections defines the maximum power transfer without electromagnetic interference.

The original, patented by António Abreu in the USA and in Europe, with the collaboration and support of the PRIME programme (Incentive Program for the modernization of the economy) and approved by the European Commission, originally designed for application of pacemakers, but at this time, and according to medical progress, became new improved techniques to be suitable for high-power (and high voltages too) devicessuch defibrillators, electric heart, insulin pumps or other implantable prosthesis.

In addition, the same principle that allows providing lower power voltages can be applied to improve the electric high power transmission and distribution systems (mains) to reduce costs due to the electrical consumer consumption, according to the results obtained.
Electronic implants: New fast battery Recharger and invasive transdermal energy feeder

Tuesday, April 2, 2013

US-Russian crew blasts off for space station

";Mar 28, 5:13 PM EDT

Associated Press AP Photo
AP Photo/Dmitry Lovetsky Science Video Interactives50 years of missions to Mars New Hubble Captures New Images In retrospect: Race to the moon Hubble Telescope: A spy on the universe Preparing for launch after standing down last fall Lunar Testing in Washington Landing on MarsTake a Tour of the International Space Station Lunar Eclipse Seen Around the WorldDocumentsNASA Economic Impact Report (March 2008) Latest NewsRussian spaceship docks with orbiting station Budget cuts could slow commercial space progress Mars rover back in action after computer problems Scientists find universe is 80 million years older NASA moon craft spots Ebb and Flow crash sites Buy AP Photo Reprints BAIKONUR, Kazakhstan (AP) -- A Russian spacecraft carrying a three-man crew blasted off Friday from a launch pad in the steppes of Kazakhstan, for the first time taking a shorter path to the International Space Station.

Instead of the two-day approach maneuver used by Soyuz spacecraft in the past, this journey to the station would take NASA astronaut Chris Cassidy and Russians Pavel Vinogradov and Alexander Misurkin just under six hours.

The Soyuz TMA-08M lifted off on time from the Russian-leased Baikonur cosmodrome at 2:43 a.m. Friday (2043 GMT; 4:43 p.m. EDT Thursday). It's set to dock at the space outpost at 10:32 p.m. EDT Thursday (0232 GMT Friday).

The trio are "on a fast track to the International Space Station," NASA spokesman Josh Byerly said, adding minutes after the launch that all was going well and the spacecraft went into orbit without any problems.

The new maneuver has been tested successfully by three Russian Progress cargo ships, an unmanned version of the Soyuz used to ferry supplies to the space station.

Vinogradov joked at a pre-launch news conference at Baikonur that the journey to the station would be so quick that it could allow the crew to even carry ice cream as a present to the three men currently manning the orbiting outpost.

"It wouldn't melt in such a short time," he said.

On a more serious note, Vinogradov added that the shorter flight path would reduce the crew's fatigue and allow astronauts to be in top shape for the docking. He said that it takes about five hours for the human body to start feeling the impact of zero gravity, so the quicker flight would allow the crew to more easily adapt to weightlessness in much roomier space station interiors.

The downside of the accelerated rendezvous is that the crew will have to stay in their spacesuits, which they don hours before the launch, through the entire approach maneuver.

Other Russian cosmonauts in the past have described the two-day approach maneuver in the cramped Soyuz as one of the most grueling parts of missions to the orbiting station. The spheroid orbiting capsule allows the crew to take off their bulky spacesuits, change into more comfortable clothes and use a toilet, but its interior is extremely confined.

The ship's spartan layout lacks adequate heating and fails to provide an opportunity for the crew to get hot food. It contrasts sharply with the spacious U.S. space shuttle, whose retirement has left Soyuz as the only means to deliver crews to the space outpost.

Russian space officials said the longer approach was necessary at a time when the station was in a lower orbit required for the shuttle flights. After they ended, it was raised from 350 kilometers (217 miles) to 400 kilometers (249 miles), making a quicker rendezvous possible.

NASA is working on the development of its new generation Orion spacecraft. Orion's first trip is an unmanned mission in 2017, and the first manned mission is set for 2021.


Associated Press writer Vladimir Isachenkov in Moscow contributed to this report.

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US-Russian crew blasts off for space station

Tuesday, December 28, 2010

Venus Visible In the Daytime Sky

Venus is so bright, you can see it even in the daytime right now — if you know where to look.
Spotting Venus in the daytime will put you in an exclusive club: the handful of folks around the world who've ever seen a planet besides our own during daylight.
Here's how to do it:
Go out before sunrise. You can't miss Venus, a brilliant beacon hovering in the predawn eastern sky.
Next, find a good reference point. I suggest standing on the west side of your house or another building and sighting Venus over the roofline. Then project where Venus will be after sunrise. It will follow the same basic path as the sun across the sky, up and to your right.
Once the sun is up, you'll have a guidepost to use in finding Venus. You don't need a telescope.
If you plan to get up before sunrise Tuesday (Dec. 14) to watch the Geminid meteor shower, you'll easily spot Venus, and you can extend the skywatching opportunity to just past dawn.
Venus appeared as a stark pinpoint of white light against the blue morning sky. It is extremely hard to find if you don't know exactly where to look, but once you find it, it's startling how bright it is.
This is how it works:
Venus shines with reflected sunlight. Because it is closer to the sun than Earth is, its orbital path never takes it very far from the sun from our point of view. Venus is always behind or in front of the sun (when we can't see it) or off to one side (when we can see it).
That's why Venus is often called the Evening Star or the Morning Star — depending on which side of the sun it's on. That's also why you never see Venus overhead in the night sky.
Outer planets, like Jupiter, can be opposite the sun in our sky, and therefore overhead at night.
Because of its size and relative closeness to us, Venus is brighter than any other planet, and only the sun and moon shine brighter.
If you have lots of patience to gaze at Venus nonstop for several minutes, or if you don't have a roofline handy, you can simply find Venus just before the sun comes up, and keep your eye on it until the sun's rays strike your face. Either trick will work any morning this month as Venus continues to shine brightly as the Morning Star —or, as some have called it, the Christmas Star.
Source: space.com
Venus Visible In the Daytime Sky

Tuesday, December 21, 2010

Pohon Buatan Penghasil Energi Listrik

Piezoelektrik adalah konsep sederhana untuk menghasilkan listrik yang berasal dari tekanan. Perusahaan 'Solar Botanic' telah menggunakan persis makna dari istilah itu, dalam rangka menciptakan sumber daya energi yang berkelanjutan dengan memanfaatkan cahaya, panas dan angin.

Dalam Perancanganx, 'Solar Botanic' selaku perusahaan yg memiliki ide tsb, menggunakan NanoLeaves sebagai Teknologi unggulan pd Piezoelektrik Tree.

Mungkin selanjutnya anda akan bertanya apa itu Nanoleaves dan bagaimana cara kerjanya? sehingga dpt disebut teknologi unggulan.

Teknologi NanoLeaves

Cara kerja: ketika kekuatan dr luar, seperti angin yg menghembuskan dedaunan [dengan volume sedikit ataupun banyak]. Pd saat itu juga, tekanan mekanis muncul di daun, ranting, tangkai dan cabang.

Proses ini kemudian dapat menghasilkan jutaan watt Pico yg secara efisien akan diubah menjadi listrik. Dengan begitu, semakin kuat angin maka energi yg dihasilkan akan semakin banyak.

Nanoleaves juga dapat mengkonversi cahaya tak terlihat, yang dikenal sebagai cahaya inframerah atau radiasi. Dengan kata lain, Cara kerja Nanoleaves adalah memanfaatkan radiasi matahari dan Angin sebagai sumber energi.


Dengan adanya Teknologi NanoLeaves, Kita diharapkan mampu Meningkatkan kesadaran pemeliharaan terhadap Lingkungan, membantu mengurangi pemanasan global dan membawa energi lebih dekat ke rumah.
Pohon Buatan Penghasil Energi Listrik

Friday, December 3, 2010

Miniatur SUPERNOVA Dalam Sebuah Tabung

Supernova adalah ledakan dari suatu bintang di galaksi yang memancarkan energi lebih banyak dari nova. Peristiwa supernova ini menandai berakhirnya riwayat suatu bintang. Bintang yang mengalami supernova akan tampak sangat cemerlang dan bahkan kecemerlangannya bisa mencapai ratusan juta kali cahaya bintang tersebut semula, beberapa minggu atau bulan sebelum suatu bintang mengalami supernova bintang tersebut akan melepaskan energi setara dengan energi matahari yang dilepaskan matahari seumur hidupnya, ledakan ini meruntuhkan sebagian besar material bintang pada kecepatan 30.000 km/s (10% kecepatan cahaya)dan melepaskan gelombang kejut yang mampu memusnahkan medium antarbintang.

Ada beberapa jenis Supernova. Tipe I dan II bisa dipicu dengan satu dari dua cara, baik menghentikan atau mengaktifkan produksi energi melalui fusi nuklir. Setelah inti bintang yang sudah tua berhenti menghasilkan energi, maka bintang tersebut akan mengalami keruntuhan gravitasi secara tiba-tiba menjadi lubang hitam atau bintang neutron, dan melepaskan energi potensial gravitasi yang memanaskan dan menghancurkan lapisan terluar bintang.

Rata-rata supernova terjadi setiap 50 tahun sekali di galaksi seukuran galaksi Bima Sakti. Supernova memiliki peran dalam memperkaya medium antarbintang dengan elemen-elemen massa yang lebih besar. Selanjutnya gelombang kejut dari ledakan supernova mampu membentuk formasi bintang baru

Berdasarkan pada garis spektrum pada supernova, maka didapatkan beberapa jenis supernova :

1.Supernova Tipe Ia

Pada supernova ini, tidak ditemukan adanya garis spektrum Hidrogen saat pengamatan.

2.Supernova Tipe Ib/c

Pada supernova ini, tidak ditemukan adanya garis spektrum Hidrogen ataupun Helium saat pengamatan.

3.Supernova Tipe II

Pada supernova ini, ditemukan adanya garis spektrum Hidrogen saat pengamatan.


Supernova tipe ini melepaskan energi yang amat besar saat meledak. Energi ini jauh lebih besar dibandingkan energi saat supernova tipe yang lain terjadi.

Akan tetapi sangat sulit untuk mengamati kejadian ini karena berjarak jutaan tahun cahaya, oleh karena itu Sebuah tim ahli fisika dari Universitas Toronto dan Rutgers University telah membuat miniatur supernova dalam sebuah tabung.

Penelitian ini dilakukan dalam Sebuah tabung vertikal larutan kental yang mengandung reaktan stabil untuk reaksi Asam iodat. Sebuah indikator merah dibuat untuk memudahkan pengamatan. Reaksi dipicu di dasar sebuah tabung kecil di bagian bawah, mengarah ke bulu-bulu tumbuh yang mempercepat gudang cincin pusaran. Tidak ada cairan disuntikkan: semua gaya apung dibuat oleh reaksi itu sendiri. Proses ini analog dengan deflagration nuklir menuju ledakan supernova tipe Ia.

Studi tentang ledakan tersebut dalam bintang-bintang sangat penting untuk memahami ukuran dan evolusi alam. pekerjaan ini didanai oleh Natural Sciences dan Engineering Research Council of Canada.

Miniatur SUPERNOVA Dalam Sebuah Tabung

Sunday, August 8, 2010

Akan Ada Fenomena Langka 3 Planet dan Hujan Meteor

Beberapa hari mendatang, fenomena langka akan muncul di langit malam. Venus, Mars dan Saturnus akan muncul bersama-sama, diselingi hujan meteor indah.

Seperti dikutip dari Yahoo News, beberapa planet ini hadir menjelang hujan meteor Perseid. Bintang jatuh itu sendiri akan mencapai puncaknya pada 11 Agustus hingga 13 Agustus.

Satu jam menjelang matahari terbenam, siapapun dapat melihat dengan jelas ketiga planet ini di cakrawala sebelah barat laut. Venus, Mars dan Saturnus muncul pada 8 Agustus.

“Ketiga planet ini ditakdirkan untuk muncul pada area yang lebih sempit di langit. Ini merupakan formasi yang sangat khas dan menarik, dan tentunya memberi getaran langit bagi para pengamat,” ujar Joe Rao, kolumnis di Space.com.

Pada 12 Agustus malam, ketiga planet ini akan sejajar bersama di langit barat sebelum menghilang di bawah cakrawala setelah matahari terbenam.

“Planet ini akan terus bersama di langit barat hingga pukul 10 malam waktu setempat,” berdasarkan keterangan NASA.

Tidak hanya itu, selanjutnya akan muncul hujan meteor Perseid.

Hujan meteor Perseid disebabkan puing-puing komet Swift-Tuttle. Setiap 133 tahun, ayunan komet ini akan melalui tata surya dan meninggalkan jejak puing. Bumi akan terlewati pada bulan Agustus.

Jika cuaca memungkinkan, para pengamat langit dapat melihat fenomena ini di wilayah mana saja.

Tempat terbaik adalah wilayah yang jauh dari perkotaan, atau daerah pinggiran yang minim lampu ataupun di bawah langit gelap, kata Rao.

“Waktu terbaik untuk melihat meteor ini adalah jam-jam larut malam pada 11 Agustus hingga 13 Agustus, pagi-pagi sekali,” ujarnya lagi.

Akan Ada Fenomena Langka 3 Planet dan Hujan Meteor