简介：Inthispaper,weproposealocalfuzzymethodbasedontheideaof"p-strong"communitytodetectthedisjointandoverlappingcommunitiesinnetworks.Inthemethod,arefinedagglomerationruleisdesignedforagglomeratingnodesintolocalcommunities,andtheoverlappingnodesaredetectedbasedontheideaofmakingeachcommunitystrong.Weproposeacontributioncoefficientbvcitomeasurethecontributionofanoverlappingnodetoeachofitsbelongingcommunities,andthefuzzycoefficientsoftheoverlappingnodecanbeobtainedbynormalizingthebvcitoallitsbelongingcommunities.Therunningtimeofourmethodisanalyzedandvarieslinearlywithnetworksize.Weinvestigateourmethodonthecomputergeneratednetworksandrealnetworks.Thetestingresultsindicatethattheaccuracyofourmethodindetectingdisjointcommunitiesishigherthanthoseoftheexistinglocalmethodsandourmethodisefficientfordetectingtheoverlappingnodeswithfuzzycoefficients.Furthermore,thelocaloptimizingschemeusedinourmethodallowsustopartlysolvetheresolutionproblemoftheglobalmodularity.

简介：题目：膜生物反应器处理港口含油废水的膜污染行为及群落结构演变研究目的：采用膜生物反应器处理港口含油废水。考察运行过程中膜污染行为特征，分析引起膜污染的关键影响因素，研究减弱膜污染的途径与方法；考察反应器内群落结构演变，分离鉴定优势菌种，揭示运行条件和进水水质等宏观环境与微生物微环境之间的对应关系。创新点：1．分析出膜表面累积的胞外蛋白是膜污染严重和过膜压力增大的关键诱因；2．基于YusufChisti和MurrayMooYoung提出的气提液体上升流速模型，结合胞外蛋白变化趋势，提出降低过膜压力上升速度和缓解膜污染进程的有效措施：3．针对处理港口含油废水的生物系统进行种群结构研究及优势菌属的分离与鉴定。方法：1．借助环境扫描电子显微镜（sEM）、能量色散x射线光谱仪（EDX）和傅里叶红外光谱仪（FTIR）等分析手段表征膜污染物的主要成分；2，基于YusufChisti和MurrayMooYoung提出的气提液体上升流速模型，提出缓解膜污染进程的措施，并验证所提措施的有效性（图3和9）；3．通过巢式PCR-DGGE技术对处理港口含油废水的膜生物反应器不同运行阶段的微生物群落结构进行研究，并采用克隆技术对优势微生物进行菌种鉴定（图10和表3）。结论：1．采用一体化厌氧／好氧．膜生物反应器来处理港口含油废水的优点是对有机污染物和油类等污染物的去除效率高，但在其运行过程中膜污染严重。2．分析发现胞外聚合物是引起膜污染物的主要因素（图3-6）；组分分析进一步表明膜表面累积的胞外蛋白是膜污染严重和过膜压力增大的关键诱因（图7～9）。3．通过增大反应器曝气量，调整反应器结构参数可有效降低过膜压力上升速度，缓解膜污染进程。4．反应器内细菌群落结构平稳。5．克隆测序结果表明：膜�

简介：图象质量评价(IQA)是在图象处理的一个基本问题。人的视觉是层次的，这是一个普通原则：我们首先察觉象轮廓那样的全球结构的信息然后如果必要集中于本地地区性的细节。跟随这个原则，我们由确定为IQA建议一个新奇框架结构的信息和区域的退化独立满足，并且印射两个获得客观分数。结构的信息能被轮廓察觉技术作为轮廓获得。实验被进行在二大规模数据集上与多重最先进的方法比较表明它的表演。

简介：

简介：Weproposeadepolarizerbasedontheprincipleofacollectionofhalf-waveplateswithrandomlydistributedopticaxes.Thedesignisdemonstratedbymeansofdynamicallyphotopatterningliquidcrystalintorandomlyalignedhomogeneousdomains.Wecharacterizetheliquidcrystaldepolarizerfor1550nmandC-band(1520–1610nm).Adegreeofpolarizationoflessthan5%isobtainedforanylinearlypolarizedlight.Thisstudyprovidesapracticalcandidateforhigh-performancedepolarizers.

简介：Withtheexpansionofthegeneexpressionprofiledatabase,inthecaseofaslittleaspossibletoloseinformationortoretainthemostcriticalinformation,geneextractionhasbecomeamaindirectionforthescholars.Thispaperexcludes1561irrelevantgenesthroughthedefinitionofweighteddistancefirstly,andthenremoves252redundantgenesbyPearson'scorrelationcoefficient.Finallybycomparingthetwomethods,stepwiseregressionafterclusteringandonlystepwiseanalysis,weobtainthebestcombinationof8genes.

简介：Recently,variableselectionbasedonpenalizedregressionmethodshasreceivedagreatdealofattention,mostlythroughfrequentist'smodels.ThispaperinvestigatesregularizationregressionfromBayesianperspective.OurnewmethodextendstheBayesianLassoregression(ParkandCasella,2008)throughreplacingtheleastsquarelossandLassopenaltybycompositequantilelossfunctionandadaptiveLassopenalty,whichallowsdifferentpenalizationparametersfordifferentregressioncoefficients.BasedontheBayesianhierarchicalmodelframework,anefficientGibbssamplerisderivedtosimulatetheparametersfromposteriordistributions.Furthermore,westudytheBayesiancompositequantileregressionwithadaptivegroupLassopenalty.Thedistinguishingcharacteristicofthenewlyproposedmethodiscompletelydataadaptivewithoutrequiringpriorknowledgeoftheerrordistribution.Extensivesimulationsandtworealdataexamplesareusedtoexaminethegoodperformanceoftheproposedmethod.Allresultsconfirmthatournovelmethodhasbothrobustnessandhighefficiencyandoftenoutperformsotherapproaches.

简介：作为X光检查，计算断层摄影术(CT)广泛地在诊断和放射疗法被用作，减少象一样低的放射剂量是重要的相当可完成。为这个目的，一个人可以使用基于的TV方法或小浪框架基于方法重建从设计的减少的数字的高质量的图象。由使用仅仅照亮region-of-interest(ROI)的内部断层摄影术计划，而且，一个人能节省更多的放射剂量。在这份报纸，柔韧的小浪框架规则化基于模型为全球重建和内部断层摄影术被建议。模型能帮助减少巨大的稀少的设计矩阵的失配引起的错误。一个三系统的分解计划被使用把重建的图象分解成三不同部分：动画片，人工制品和噪音。由丢弃估计的人工制品和噪音部分，因此，重建的图象能与更少的噪音和人工制品被获得。类似于基于的图象恢复建模的另外的框架，模型能被裂口Bregman算法高效地解决。数字模拟证明建议模型以锋利的边，吝啬的结构的类似(SSIM)，contrast-to-noise比率，相对错误和关联的保藏超过FBP和SART+TV方法。为真实绵羊肺重建，当FBP和SART+TV方法需要超过200设计时，例如，建议方法能到达用仅仅100设计象0.75一样高的吝啬的结构的类似。另外，建议柔韧的方法为有与FBP和SART+TV方法相比的更好的性能的内部、外面的断层摄影术是适用的。

简介：

简介：ExtensionPrinciplesplayasignificantroleintheconstructionofMRAbasedwaveletframesandhaveattractedmuchattentionfortheirpotentialapplicationsinvariousscientificfields.AnovelandsimpleprocedurefortheconstructionoftightwaveletframesgeneratedbytheWalshpolynomialsusingExtensionPrincipleswasrecentlyconsideredbyShahin[TightwaveletframesgeneratedbytheWalshpolynomials,Int.J.Wavelets,Multiresolut.Inf.Process.,11(6)(2013),1350042].Inthispaper,weestablishacompletecharacterizationoftightwaveletframesgeneratedbytheWalshpolynomialsintermsofthepolyphasematricesformedbythepolyphasecomponentsoftheWalshpolynomials.

简介：为增加的目的在里面polycation基因搬运人的vivo稳定性，我们准备了一种pH敏感poly(乙烯乙二醇)-poly(-benzyl-L-glutamate-co-glutamic酸)(木钉针网阵列(65)，65表示glutamic酸的臼齿的比率在poly(-benzyl-L-glutamate-co-glutamic酸))。木钉针网阵列(65)显示出低cytotoxicity并且能高效地防护DNA/PEI(1:1)polyplexes的正电荷。transfection被提高由于部分收费在7.4的pH在HeLa房间线防护。有几乎没有transfection效率当第三的粒子的表面费用转到时在7.4的pH否定。然而，transfection效率在transfection的开始在6.0的pH由culturing恢复了很多。共焦的显微镜的观察和流动cytometry结果证明DNA/PEIpolyplexes应该高效地被释放并且在pH的endocytosized6.0，因为pH木钉针网阵列(65)的触发的deshielding行动。由于好biocompatibility和合适的pH触发了shielding/deshielding性质，木钉针网阵列(65)能是为在vivo使用的polycationic基因搬运人的一个潜在的防护系统。

简介：在生物体之发光断层摄影术(BLT)问题，在从光信号的一个小动物内的生物体之发光来源分发在动物身体表面上检测了的一构造份量上。BLT问题是提出病的，经常，Tikhonov规则化被用来获得稳定的近似答案。在常规Tikhonov规则化，选择一个合适的规则化参数平衡近似解决方案的精确性和稳定性是关键的。在这份报纸，一个参数依赖者联合了基于的复杂边界方法(CCBM)Tikhonov规则化被用于放射的转移方程(RTE)管理的BLT问题。由适当地处于知更鸟边界条件调整参数，我们完成一个重要性质：调整答案关于规则化参数是一致地稳定的以便规则化参数能被选择完全基于答案精确性的考虑。分离纵标的有限元素的方法被用来计算数字答案。数字结果被提供说明建议方法的表演。

简介：Wepresentintegrated-opticbuildingblocksandfunctionalphotonicdevicesbasedonamorphoussiliconon-insulatortechnology.Efficientdeep-etchedfiber-to-chipgratingcouplers,low-losssingle-modephotonicwirewaveguides,andcompactpowersplittersarepresented.Basedonthesub-μmphotonicwires,2×2Mach–Zehnderinterferometersandadd/dropmicroringresonators(MRRs)withlowdevicefootprintsandhighfinesseupto200wererealizedandstudied.Compactpolarizationrotatorsandsplitterswith≥10dBpolarizationextinctionratiowerefabricatedforthepolarizationmanagementon-chip.Thetuningandtrimmingcapabilitiesofthematerialplatformaredemonstratedwithefficientmicroheatersandapermanentdevicetrimmingmethod,whichenabledtherealizationofenergy-efficientphotoniccircuits.Wavelengthmultiplexersintheformofcascadedfilterbanksand4×4routersbasedonMRRswitchesarepresented.Fabricationimperfectionswereanalyzedandpermanentlycorrectedbyanaccuratelaser-trimmingmethod,thusenablingeight-channelmultiplexerswithrecordlowmetricsofsub-mWstaticpowerconsumptionand≤1°Ctemperatureoverhead.Thehighqualityofthefunctionaldevices,thehightuningefficiency,andtheexcellenttrimmingcapabilitiesdemonstratethepotentialtorealizelow-cost,denselyintegrated,andultralow-power3D-stackedphotoniccircuitsontopofCMOSmicroelectronics.

简介：Powdermetallurgy(PM)superalloysareanimportantclassofhightemperaturestructuralmaterials,keytotherotatingcomponentsofaeroengines.InthepurviewofthepresentchallengesassociatedwithPMsuperalloys,twonovelapproachesnamely,powderpreparationandtheinnovativespray-formingtechnique(formakingturbinedisk)areproposedandstudied.Subsequently,advancedtechnologieslikeelectrode-induction-meltinggasatomization(EIGA),andspark-plasmadischargespheroidization(SPDS)areintroduced,forceramic-freesuperalloypowders.Presently,newprocessingroutesaresoughtafterforpreparingfinerandcleanerrawpowdersfordisksuperalloys.Theprogressofresearchinspray-formedPMsuperalloysisfirstsummarizedindetail.Thespray-formedsuperalloydisksspecificallyexhibitexcellentmechanicalproperties.ThispaperreviewstherecentprogressininnovativetechnologiesforPMsuperalloys,withanemphasisonnewideasandapproaches,centraltotheinnovationdrivingtechniqueslikepowderprocessingandsprayforming.

简介：在这篇文章，我们设计了并且综合一系列5-(2,6-dimethyl-4H-pyran-4-ylidene)-1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H，5H)联合起来的-dione(PD)第一次基于聚合物(PFTDT，CZTDT，PHTDT和THTDT)。在这些聚合物，fluorene，2,7-carbazole，phenothiazine和thiophene作为撤退电子的组作为捐赠电子的组和PD被采用。TGA大小证明这些聚合物拥有好热稳定性(都超过377吗？？

简介：Weexperimentallydemonstratea4×4nonblockingsiliconthermo-optic(TO)switchfabricconsistingofthreestagesoftunablegeneralizedMach–Zehnderinterferometers.All24routingstatesfornonblockingswitchingarecharacterized.Thedevice’sfootprintis4.6mm×1.0mm.Measurementsshowthattheworstcrosstalkofallswitchingstatesis-7.2dB.Theon-chipinsertionlossisintherangeof3.7–13.1dB.TheaverageTOswitchingpowerconsumptionis104.8mW.

简介：Inthispaper,weproposeaninstantaneousphase-steppingmethodfordeterminingphasedistributionofinterferencefringesutilizingacamerathatisequippedwithamicro-polarizerarrayonthesensorplane.AnopticalsetupofpolarizationinterferometryusingaMach–Zehnderinterferometerwithtwopolarizersisconstructed.Lightemergingfromtheinterferometerisrecordedusingacamerathathasamicro-polarizerarray.Thismicro-polarizerarrayhasfourdifferentopticalaxes.Thatis,animageobtainedbythecameracontainsfourtypesofinformationcorrespondingtofourdifferentopticalaxesofthepolarizer.Thefourimagesseparatedfromtheimagerecordedbythecameraarereconstructedusinggraylevelinterpolation.Subsequently,thedistributionsoftheStokesparametersthatrepresentthestateofpolarizationarecalculatedfromthefourimages.ThephasedistributionoftheinterferencefringepatternproducedbytheMach–ZehnderinterferometeristhenobtainedfromtheseStokesparameters.Theeffectivenessoftheproposedmethodisdemonstratedbymeasuringastaticcarrierpatternandtime-variantfringepatterns.Itisemphasizedthatthismethodisapplicabletotime-variantphenomenabecausemultipleexposuresareunnecessaryforsufficientdataacquisitioninthecompletionofthephaseanalysis.

简介：

简介：Inthisletter,apiezoaeroelasticenergyharvesterbasedonanairfoilwithdoubleplungedegreesoffreedomisproposedtoadditionallytakeadvantageofthevibrationalenergyoftheairfoilpitchmotion.Ananalyticalmodeloftheproposedenergyharvestingsystemisbuiltandcomparedwithanequivalentmodelusingthewell-exploredpitch-plungeconfiguration.Thedynamicresponseandaveragepoweroutputoftheharvesterarenumericallystudiedastheflowvelocityexceedsthecut-inspeed(flutterspeed).Itisfoundthattheharvesterwithdouble-plungeconfigurationgenerates4%–10%morepowerwithvaryingflowvelocitieswhilereducing6%ofthecut-inspeedthanitscounterpart.

简介：一个各向异性的micromechanics模型基于相等的包括方法被开发调查基于Ni的单个水晶superalloys的rafting方向。micromechanical模型考虑实际立方的结构和直角的anisotropy性质。当适用时，在micromechanical模型的不同包括的von协定压力，有弹性的紧张精力密度，和静水力学的压力被计算一张力或压缩装载[001]方向。计算结果能成功地为展出的合金预言rafting方向一积极或否定失配，它与能接受的试验性、理论的研究一致。而且，矩阵的有弹性的经常的差别和失配度并且猛抛rafting方向上的阶段和他们的影响小心地被讨论。