- graphene - sigma APO 135-400 mm - NEC multiSync 2690WXi 26 inch - intel V8 system test -

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POSTER: computer news   ||   GRAPHENE	DATE:2007-03-01
On the theme what technology can over the long term arrive for the change to semiconductors as the new element base and snatch out the banner of superiority from weakening hands, already broken numerous copies. Perhaps, the greatest interest today present the carbonic nano-tubes is publication about them they appear in the periodicals all by the increasing frequency. However, there are alternatives, also carbonic, but those having the different from the nano-tubes structure  so assert professor (Andre geim) and Constantine  from the Manchester university (more precise, from The school of physics and Astronomy at the university of manchester) in the March number of the periodical nature materials. In their article the scientists describe the transistor, whose thickness composes one atom, and the width  50. It is possible to say that the transistor consists of grafena : the two-dimensional (flat) allotrope of carbon (in the figure : the fragment crystal lattice grafena, which is infinite plane). The fact that on the base of grafena it is possible to create transistor, became known practically immediately after the detection of this allotrope (generally speaking, field-effect transistors can be created from the very large number of materials, not compulsorily semiconductors), however, the first devices on its base possessed the completely high current of leakage, and this parameter is critically important for the industry, the aim is the growth not only of speed and capacity, but also for reduction in the energy consumption. Heim comrades they proposed the simple and elegant method of the solution of this problem, having simultaneously demonstrated that the fact that grafen remains stable and preserves property to carry out electricity, even being located in the form nanos-particle by the size several nanometers  â€“ more precise, in the form strips with width into 50 atoms (thickness, let us recall, it composes one atom, i.e., the order of angstrom or by an order less than the nanometer). But here are the properties of silicon, yes even many other elements and connections, often they change with the change of microscopic scales by the the nano-scopic. Professor Heim assumes that, it is completely probably, width of zone of grafena in 50 atoms : not limit plans to work at the creation of the devices of a even smaller size, up to several atoms. In the opinion scientists, their development will allow to prolong life Moore's law even after semiconductor technologies they disappear in to the summer  â€“ i.e., even after it is more than half century from the moment of the formulation of empirical rule, which notes that the density of integrated microcircuits doubles every 18-24 months, it will be as before urgent. English scientists see the future element base as follows: on grafen sheet are cut out the sources and the drains of transistors, the role of lock of which execute quantum points - semi-transparent (there is in the form – there is probability of tunneling ) potential barriers, make possible to control electron motion, and also conductors and internal connections. Thus, in the future for the production of integrated circuits it will be possible to generally forego silicon or germanium – all will be done from grafena. Main problem, as correctly indicates that assuming participation in the research project of Leonid  (also the colleague Manchester university) that until that the technologies, capable of cutting from grafena the elements with an accuracy to of the units of nanometers, exists. Alas, the chapter of research group, professor Heim, experiences the completely restrained optimism and do not assume the appearance of commercial prototypes earlier than 2025. graphene	Add Comment ( 0 ) GRAPHENE

POSTER: computer news   ||   SIGMA APO 135-400 MM	DATE:2007-03-01
On the site of Japanese company sigma appeared the information about two long-awaited telephoto lenses. Long-awaited, therefore as about their fast release it was known still during November 2005, but are only now promulgated the periods of the beginning of sales, price and precise specifications. For well-off telephoto is proposed the apochromatic telephoto lens sigma APO 135-400 mm f/4,5-5,6 DEG. For obtaining the high optical characteristics in entire range of focal lengths and reducing to the minimum of chromatic aberration in the optical diagram of objective are used one aspherical lens even three elements of the low-dispersion glass (SLD, Special low dispersion). Application of the new multilayer clarifying coating to called decrease the appearance of specks of light and moire, and also to attain natural color reproduction. In sale lens will enter on 16 March on the price of approximately 700 dollars. Technical characteristics Of sigma APO 135-400 mm f/4,5-5,6 DEG: Focal length: 135 - 400 mm Minimum diaphragm: f/32 Construction: 13 elements in 11 groups Viewing angle: 18,2° - 6,2° Quantity of lobes diaphragm: 9 Minimum focusing distance  : 200 - 220 cm Maximum increase: 1:5,3 Diameter under light filter: 77 mm Sizes: diameter - 88,5 mm, length - 183,6 mm Weight: 1245 Versions: Sigma AF, Canon EF, Nikon AF, Pentax AF, Sony AF But here the second new product - the telephoto lens sigma APO 300-800 mm f/5,6 DEG HSM. This by an order more expensive monster is characterized by a constant candlepower f/5,6 in entire range of focal lengths and the presence of ultrasonic HSM- motor (Hyper sonic motor), which ensures noiseless and rapid focusing. In the optical diagram of objective are included two elements from the  glass (ELD, Extraordinary low  dispersion) for the minimization of chromatic aberrations. In combination with teles-converter sigma 1,4x EX DEG APO either 2x EX DEG APO (they are supplied separately), user will be able to obtain the ranges of focal lengths 420 - 1120 mm with f/8 or 600 - 1600 mm with f/of 11. Sales super-tele-Vicat sigma APO 300-800 mm f/5,6 DEG HSM also will begin on 16 March. Tentative cost - 7200 dollars. Technical characteristics Of sigma APO 300-800 mm f/5,6 DEG HSM: Focal length: 300 - 800 mm Minimum diaphragm: f/32 Construction: 18 elements in 16 groups Viewing angle: 8,2° - 3,1° Quantity of lobes diaphragm: 9 Minimum focusing distance  : 6 m Maximum increase:  1:6,9 Diameter under light filter: 46 mm Sizes: diameter - 156,5 mm, length - 544 mm Weight: 5880 g Versions: Sigma, Canon, Nikon sigma APO 135-400 mm	Add Comment ( 0 ) SIGMA APO 135-400 MM

POSTER: computer news   ||   NEC MULTISYNC 2690WXI 26 INCH	DATE:2007-02-28
On the stand NEC in the course of the large European exhibition focus on imaging 2007 was demonstrated the 26-  inch wide-format display multiSync 2690WXi. This solution will be oriented to professionals, by which is critical the color reproduction. The scope of the color of gamma is not named at the current moment, but is possible to assume that it will be located in the range by 90-100% NTSC. The second distinctive special feature of this lcs monitor is high brightness - 400 nit. According to the preliminary information, the viewing angles are close to the absolute - 178 degrees in the vertical line and horizontal. The level of contrast will compose 800:1, the time of response in the matrix - 7  ms. Resolution of display - 1920 X 1200 pixels. The entrances in the model multiSync 2690WXi will be presented TO VGA and DVI, it communicates about the presence of fastening to the wall. With the declared price in 1700 dollars NEC multiSync 2690WXi he is preliminarily seen by worthy rival to the products of Japanese company EIZO, oriented to the professional use and to completely expensive. NEC multiSync 2690WXi 26 inch	Add Comment ( 0 ) NEC MULTISYNC 2690WXI 26 INCH

POSTER: computer news   ||   INTEL V8 SYSTEM TEST	DATE:2007-02-28
The editor of the resource digital trends  obtained at his disposal the two-processor system intel V8 and did not slow down to share with his impressions from the work on it with the readers. The usual computer, utilized By robom, is system on the base of the platform AMD quad FX. On its words, this system completely successfully manages the simultaneous reproduction of full screen video in the DVD- quality, game and other task as electronic mail , web etc. If to these tasks qw add another video reencoding , then system begins to slowdown. Upon transfer on V8 by the only application, which loaded 99% all 8 cores, became program according to the analysis DNA (obviously we deal here with the project of the distributed calculations folding@Home). Even in this case the neglected game demonstrated acceptable productivity with rare drops in the quantity frames per second. Enderle writes that on the market For intel V8 it must appear the toward the end present year. In his opinion, it will not compete from Quad FX for that reason, what the latter has clearly expressed degree of orientation for gaming application, whileintel  platform  - to working. Thus, in V8 there is no possibility of installation more than one video card. At the same time, for coding tasks , the editings video and other demanding to the resources CPU tasks such systems will be completely claimed. It does not be worth, however, forgetting about the future release of four core processors AMD, which will make possible to substantially accelerate Quad FX (4x4) in the tasks, different from games intel V8 system test	Add Comment ( 0 ) INTEL V8 SYSTEM TEST

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