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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>loiwtjsf</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pią 20:01, 03 Gru 2010<span class="gen"> </span> Temat postu: ugg boots g&#252;nstig Chemical vapor infiltration (CV</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Chemical vapor infiltration (CVI) silicon carbide Technology <br /> <br /> <br />ientandpressure-temperaturegradienthavebeendescribedinthispaper. CVIprocessesinducehighlycontrolledreactionetweenvaper-phasereactantswiminhermeticchambers. InisothermalprocessandthermalgradientprocesstheCVDgasesdiffuseintothepreform. whileinpressure-temperaturegradientprocesstheCVDgasesareforcedintothepreformbyapressuregradient-Theprocessingcyclesweresuccessivelyreduced. Keywords: Isothermalprocess,<a href="http://www.uggbootsgunstigbillig.com" target="_blank" class="postlink">ugg boots günstig</a>, ThermaVgradientprocess, Pressure-temperaturegradientprocess my sea high-speed data transmission of breakthroughs from the Xiamen University, Professor Xu Tianzeng and Professor Xu Keping undertaken 863 projects, \j State Education Commission and the National Natural Science Foundation of basket funding) recently passed the State Science and Technology Commission of the acceptance of j,<a href="http://www.lovely-mac.com" target="_blank" class="postlink">mac cosmetics cheap</a>, results of the international advanced level, and was elected to the National Natural Science Foundation of the outstanding achievements of the Committee to participate in \part of the research results show \speed data transmission. The team uses a unique digital FM signal processing, combined with a variety of adaptive technologies such as cable transmission in the study made no breakthrough j. Such signal processing can be applied to the above-mentioned aspects can be be part of the compatibility. where the frequency of acoustic remote sensing up to 256 yards. I. underwater video image transmission system: underwater image is an important military information on the need to obtain one. to underwater acoustic channel (no cable) Underwater video image transmission is widely used in image transmission can not take the cable occasions, such as intelligent machines where the military or various types of underwater cable-free underwater vehicle, mines, torpedoes, or close accurately determine underwater vessels, military underwater - ?-way real-time image monitoring. Obviously, the use of underwater acoustic channel for image transmission over long distance cable transmission more practical advantages. video image transmission system will provide long-distance underwater, comprehensive, high figure as the quality of image transmission without cables. The systematic experimental waters a few meters to 30 meters; 40 longest transmission distance of 10 km; transfer rate of 8 kbit / s (for 5 kHz bandwidth, now extended to three band,<a href="http://www.uggbootsgunstigbillig.com" target="_blank" class="postlink">ugg boots billig</a>, namely, I5 kHz, which can increase the rate of 3 times to 24 kbit / s); image composed of 160 × 1O0 (pixels) × l6 (gray bleed at the nose); par rate is 8 seconds to send a picture like (such as the use of sophisticated image compression techniques, such as compression ratio is 24, you can send three images per second); effective electric power of 50 watts; - ? point of orientation for the way transmission. the mobility, flexibility especially for military activities of expected to provide a new means of underwater observation. 2. underwater digital language, fax, IFF, communications systems: all kinds of military submarines, and underwater vehicle and surface ship and submarine of the question, (or underwater vehicle) communication links between devices, infrastructure is one of the Navy activities, subject to great attention. As underwater high-speed data transfer rate of the difficulties, the current language of the domestic water is still a more backward communication analog signal transmission. and digital communication has many significant advantages: ① strong resistance to noise; ② letter code can be recycled high-quality,<a href="http://www.airjordansshoescheapnike.com" target="_blank" class="postlink">air jordans</a>, interruption, noise, distortion does not plot power; ③ error correction techniques can be used to correct transmission errors high reliability; ④ easy to use computer technology to signal processing,<a href="http://www.truereligiontruejeans.com" target="_blank" class="postlink">true religion cheap</a>, plus - ?; ⑤ easy to encrypt digital information, which is particularly important in the military. 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