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<table cellpadding="3" cellspacing="0" width="100%" class="forumline"> <thead> <caption><table border="0" cellspacing="0" cellpadding="0" width="100%" class="forumheader"> <tr> <td align="left" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_left.gif" width="25" height="27" alt="" /></td> <td align="center" class="forumheader-mid">Topic review</td> <td align="right" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_right.gif" width="25" height="27" alt="" /></td> </tr></table></caption> </thead> <tbody> <tr> <th class="thCornerL" width="22%" height="26">Author</th> <th class="thCornerR">Message</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>lompiacv</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/AcidTechTiger/images/post_old.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Posted: Mon 0:17, 03 Jan 2011<span class="gen"> </span> Post subject: ugg stivali Magnesium Alloys AZ91D ingot material</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Magnesium Alloys AZ91D ingot material size changes on the impact of Isothermal Heat Treatment <br /> <br /> <br />. 【4】 SekiharaK, OhnishiS, KamadoS, eto1. Semi-solidformingofstrain-inducedAZ91Dmagnesiumalloy [J]. JournalofJapanInstituteofLi 【ghtMetals, l995,<a href="http://www.stivaliuggitalia.org" target="_blank">ugg stivali</a>, 45 (10) :560-565. [5】 Liyuan Dong, Hao Yuan,<a href="http://www.stivaliuggitalia.org" target="_blank">stivali ugg</a>, Yan Fengyun. SIMA AZ91D magnesium alloy prepared by non-dendritic ingot material [J】. Gansu University of Technology, 2002,28 (4) :34-38. [6】 Liyuan Dong, Hao Yuan, Yan Fengyun, et al. AZ91D magnesium alloy in semi-solid isothermal heat treatment of microstructure evolution 『J]. Chinese Journal of Nonferrous Metals, 2001,11 (4): 57l a 575. [7】 Liyuan Dong, Hao Yuan, Chen Ti-jun, et al. Isothermal heat treatment on AZ91D magnesium alloy semi-solid microstructure evolution and formability of .... Chinese Journal of Nonferrous Metals, 2002.12 (6) :1143-l148. [8] KimJN, KimKT, JungWJ. Effectsofisothermalhe ~ ingprocedureandstrontiumadditiononsemisolidformingofAZ91magnesiumalloy [J]. MaterialsScienceandTechnology, 2002, (1<img src="http://picsrv.fora.pl/images/smiles/icon_cool.gif" alt="Cool" border="0" /> :698-701. [9】 Yang Guangyu, Haoqi Tang, Jie Wanqi. And so on. Mg-5A1-1.5Ca a 0.4Zn isothermal base alloy microstructure and properties of semi-solid die casting [J】. China Nonferrous Metals,<a href="http://www.stivaliuggitalia.org" target="_blank">ugg italia</a>, 2005,15 (4): 614.620. [1O] Liyuan Dong, Hao Yuan, Jin flowers, and so on. Semi-solid isothermal heat treatment on AZ91D Magnesium Alloy [J]. T industry in Gansu University of Technology, 2001,27 (1) :27-30. Tin (Continued from page 110) the increase in the number of nodes decreases and then increases, when the hidden nodes for the l4, the minimum prediction error (0.017). Figure 6 (b) can be observed, the forecast error increases with the hidden layers first and then decrease and then increase, when the hidden nodes is 16:00, or. Minimum prediction error (0.112). Figure 6 (c1 can be seen,<a href="http://www.stivaliuggitalia.org" target="_blank">ugg prezzo</a>, the prediction error increases with the increase in number of nodes in the hidden layer first increases and then decreases, when the hidden nodes is 6, the prediction error minimum (0.026). From Figure 6 ( a) also shows that the prediction error increases with the increase of number of nodes in the hidden layer decreases and then increases, when the hidden nodes is 16, the predicted and measured values are equal. 3 Conclusions (1) the material the chemical composition as the network input, the mechanical properties as the network's output, you can create reflects the inherent law of the experimental data a mathematical model. (21 errors with the hidden nodes and training times increases; error with the learning rate increase decreases and then increases; Momentum speed up the convergence and prevent convergence. (3) using back propagation (BP) algorithm, based on a relationship between chemical composition of three-layer network model was established 1lx17x4j. come to the training error is 0.726 get a relatively good learning precision. with the network prediction of non-quenched and tempered steel mechanical properties and measured values are close. References: [1] Luo Yi, Wu light wind,<a href="http://www.ed-love-ca.com" target="_blank">ed hardy</a>, Li people. CO welding parameters optimization of artificial neural network design [J]. thermal processing, 2008,37 (5) :93-95. f21 Liu Xiaoling. BP algorithm for neural network prediction using tungsten tensile strength [J]. Materials Science and Technology, 2006,14 (1): 63-65. [3】 Yinhai Lian, Hu Zili. based on BP neural network performance prediction of composite materials [J】. Nanjing University of Aeronautics and Astronautics, 2006,38 (2): 234.238. [4】 MehmetSO.ArtificialneuralnetworkapproachtOpredicttheelectricalconductivityanddensityofAg-Nibinaryalloys [J]. JournalofMaterialsProcessingTechnology ,2008,208:470-476. Tin \ <br />相关的主题文章： <br /> <br /> <br /> <a href="http://software-escrow-data.info/index.php?topic=10477.msg15840#msg15840" target="_blank">air jordans Ultrafine particle size distribution analyzer _1914</a> <br /> <br /> <a href="http://www.cangyong.com/home/space.php?uid=7804&do=blog&id=154554" target="_blank">air jordans Liquid membrane process liquid copper</a> <br /> <br /> <a href="http://newhoperobinson.org/parents/index.php?topic=161043.msg134890#msg134890" target="_blank">ugg boots günstig Electricity Advisory Committee published the standard electri</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" class="spaceRow"><img src="http://picsrv.fora.pl/AcidTechTiger/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </tbody> </table>
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