简介：切开的修改Hermitian和skew-Hermitian(MHSS)重复方法和preconditionedMHSS(PMHSS)重复方法分别地被介绍。在纸，根据MHSS重复方法，我们在场为与non-Hermitian和复杂对称的积极definite/semi-definite解决大稀少的连续Sylvester方程的一个PMHSS重复方法矩阵。在合适的条件下面，我们证明PMHSS重复方法的集中并且讨论光谱preconditioned矩阵的性质。而且到计算花费了的还原剂，我们建立PMHSS重复方法的不精确的变体并且详细分析它的集中性质。数字结果证明PMHSS重复方法和它的不精确的变体是为连续Sylvester方程的这个类的有效、柔韧的解答者。

简介：可变的步尺寸的新多项式明确的表达线性multistep方法被介绍，在每个k步方法被k的一个固定集合描绘的地方-1或k参数。这构造包括最大的顺序的所有方法(p=k为生硬，并且p=k+1为nonstiff问题)。由建设支持时间步adaptivity，新明确的表达不基于扩大古典固定的步尺寸方法；相反古典的方法是在一个统一框架以内修理了步尺寸限制被获得。方法在Matlab被实现，与本地错误评价和大量步尺寸控制器。这为处于现实主义的运作的条件调查并且比较不同multistep方法提供一个平台。计算实验证明新multistep方法构造和实现有利地比作存在软件，尽管可变顺序还没被包括了。

简介：Thispaperdevotedtofindingprocessingmethodsofalkalinehydrolysateproducedfromricehuskpre-extraction,anddiscussesalkalinehydrolysateprocessingschemedanddisengagementofsomeproducts:amorphoussilicaofvariousquality,alkalinelignin,andwaterandalkalineextractionpolysaccharides.Silicasampleswerecharacterized:crude(air-dried),burnt(nopreliminarywatertreatment),washedindistilledwater,andwashedindistilledwaterandburnt.Wastewaterparametersupontheextractionofsolidsfromalkalinehydrolysatedroppedafewdozensorthousandtimesdependingontheappliedprocessingmethod.Colordecreasedafewthousandtimes,turbiditywasvirtuallyeliminated,chemicaloxygendemandedabout20–136times;polyphenolscontentmightdecrease50%orbevirtuallyeliminated.Themostprospectiveschemeobtainedthetwofollowingsolidproductsfromricehuskalkalinehydrolysate:amorphoussilicaandalkalineextractionpolysaccharide.Chemicaloxygendemandoftheremainingwastewaterdecreasedabout140timescomparedtothesilica-freesolution.

简介：这份报纸学习随机的部分微分方程的一个班的Galerkin有限元素近似。在空间的discretization被一个标准连续有限元素方法和错误估计被获得的几乎最佳的顺序做。discretization及时经由piecewise常数，不连续的Galerkin方法和Laplace变换卷绕旋转照被完成。我们为semidiscrete和充分分离的计划给强壮的集中错误估计。证明为相应确定的问题基于错误估计。最后，数字例子被执行验证理论结果。

简介：这研究由于地震刺激在结构的倒塌的上下文为大、复杂的结构的系统的混合模拟检验集成方法的表演。目标申请未必为即时测试，但是相当为包含大规模物理基础的模型和高度非线性的数字模型。四案例研究被介绍并且讨论。在第一案例研究，也就是，包括二个广泛地使用的方法的集成计划的精确性与重复的改正数字修改了含蓄的Newmark的版本(反复)并且切开操作员(非反复)通过纯数字模拟被检验。第二案例研究介绍模拟为反复的集成方法就各种各样的时间步和重复的改正数字而言与二个上述的集成方法重复了的10混血儿的结果。在这些测试的物理基础由single-degree-of-freedom(SDOF)组成有提供可重复的highlynonlinear行为包括的可替代的钢赠券的伸臂列破裂类型力量和僵硬降级。以防学习三，有重复的改正数字的含蓄的Newmark被申请1:2的混合模拟放大包括一个相对复杂的非线性的数字基础的钢时刻框架。最后，一个更复杂的数字基础被构造联合到一个1:2规模钢严肃框架的一个混合模型的一个片刻框架的一个非线性的计算模型考虑。最后二案例研究在一样的porotype结构和步和重复的固定数字仔细在预告测验模拟被检验的时间的选择上被进行。产生失衡力量被用作一个索引追踪平衡错误并且预言模拟的精确性和稳定性。

简介：Inthiswork,weinvestigatethemethodstoimprovetheperformanceofthesweptsourceat1.0μmbasedonapolygonscanner,includingin-cavityparametersandboosterstructuresoutofthecavity.Thethreein-cavityparametersarethecavitylength,therotatingspeedofthepolygonscanner,andthein-cavityenergy.Withthedecreaseofcavitylength,thespectrumbandwidthbecomeswiderandthedutycyclebecomeshigher.Withtheincreaseoftherotatingspeedofthepolygon,thespectrumbandwidthbecomesnarrower,andthedutycyclebecomeslowerbuttherepetitionratebecomeshigher.Withmoreenergyin-cavity,thespectrumbandwidthbecomeswiderandthedutycyclebecomeshigher.Theboosterstructuresincludethebufferedstructure,secondaryamplifier,anddual-semiconductoropticalamplifierconfiguration,whichareusedtoincreasethesweepfrequencyto86kHz,theoutputpowerto18mW,andthetuningbandwidthto131nm,respectively.

简介：Nanoscaleplasmonic系统小空间规模把光频率的优点与那些相结合，围绕由利用表面电浆子的强壮的地监禁的常规photonic系统的限制。由于到nanoscale的这小型化，电子显微镜学技术是选择的自然研究方法。最近的年看见了联合电子和光子的使用启用表面电浆子的崭新的看法以的很多种电子显微镜学技术的开发联合空间，精力，和时间分辨率。这评论试图由构画出他们适用性的各自的试验性的领域并且加亮他们特别地适用于plasmonics的互补力量和限制从一个试验性的观点提供这些不同途径的比较调查。

简介：

简介：Theboundaryelementmethod(BEM)isamainmethodforanalyzingtheinteractionsbetweenthewavesandthemarinestructures.AswiththeBEM,asetoflinearequationsaregeneratedwithafullmatrix,therequiredcalculationsandstorageincreaserapidlywiththeincreaseofthestructurescale.Thus,anacceleratedmethodwithalowstorageisdesirableforthewaveinteractionwithaverylargestructure.AsystematicreviewisgiveninthispaperfortheBEMforsolvingtheproblemofthewaveinteractionwithalargescalestructure.VariousintegralequationsarederivedbasedondifferentGreenfunctions,theadvantagesanddisadvantagesofdifferentdiscretizationschemesoftheintegralequationsbytheconstantpanels,thehigherorderelements,andthesplinefunctionsarediscussed.Forthehigherorderelementdiscretizationmethod,thespecialconcernsaregiventothenumericalcalculationsofthesingle-layerpotential,thedoublelayerpotentialandthesolidanglecoefficients.Foralargescalecomputationproblemsuchasthewaveinteractionwithaverylargestructureoralargenumberofbodies,theBEMswiththeFMMandpFFTaccelerationsarediscussed,respectively,includingtheprinciplesoftheFMMandthepFFT,andtheirimplementationsinvariousintegralequationswithdifferentGreenfunctions.Finally,somepotentialapplicationsoftheaccelerationmethodsforproblemswithlargescalecomputationsintheoceanandcoastalengineeringareintroduced.

简介：Drylandsareamongthoseregionsmostsensitivetoclimateandenvironmentalchangesandhuman-inducedperturbations.Themostwidelyaccepteddefinitionofthetermdrylandisaratio,calledtheSurfaceWetnessIndex(SWI),ofannualprecipitationtopotentialevapotranspiration(PET)beingbelow0.65.PETiscommonlyestimatedusingtheThornthwaite(PETTh)andPenman–Monteithequations(PETPM).ThepresentstudycomparedspatiotemporalcharacteristicsofglobaldrylandsbasedontheSWIwithPETThandPETPM.ResultsshowedvastdifferencesbetweenPETThandPETPM;however,theSWIderivedfromthetwokindsofPETshowedbroadlysimilarcharacteristicsintheinterdecadalvariabilityofglobalandcontinentaldrylands,exceptinNorthAmerica,withhighcorrelationcoefficientsrangingfrom0.58to0.89.Itwasfoundthat,during1901–2014,globalhyper-aridandsemi-aridregionsexpanded,aridanddrysub-humidregionscontracted,anddrylandsunderwentinterdecadalfluctuation.Thiswasbecauseprecipitationvariationsmademajorcontributions,whereasPETchangescontributedtoamuchlesserdegree.However,distinctdifferencesintheinterdecadalvariabilityofsemi-aridanddrysub-humidregionswerefound.ThisindicatedthattheinfluenceofPETchangeswascomparabletothatofprecipitationvariationsintheglobaldry–wettransitionzone.Additionally,thecontributionofPETchangestothevariationsinglobalandcontinentaldrylandsgraduallyenhancedwithglobalwarming,andtheThornthwaitemethodwasfoundtobeincreasinglylessapplicableunderclimatechange.

简介：

简介：这糊为为布尔控制的分解w.r.t产量的问题的图理论方法联网的焦点(BCN)。第一由诉诸矩阵和BCN的矩阵表示的半张肌产品，分解w.r.t的定义输出被介绍。秒由指BCN的图形的结构，为分解的一个必要、足够的条件w.r.t产量基于图理论方法被获得。第三，认识到最大的分解w.r.t产量的一个有效算法被建议。最后，一些例子被探讨验证理论结果。

简介：Whendesigningawavepowerplant,reliableandfastsimulationtoolsarerequired.Computationalfluiddynamics(CFD)softwareprovideshighaccuracybutwithaveryhighcomputationalcost,andinoperational,moderateseastates,linearpotentialflowtheoriesmaybesufficienttomodelthehydrodynamics.Inthispaper,amodelisbuiltinCOMSOLMultiphysicstosolveforthehydrodynamicparametersofapoint-absorbingwaveenergydevice.TheresultsarecomparedwithalinearmodelwherethehydrodynamicalparametersarecomputedusingWAMIT,andtoexperimentalresultsfromtheLysekilresearchsite.Theagreementwithexperimentaldataisgoodforbothnumericalmodels.

简介：Thispaperdescribesanovelsharpinterfaceapproachformodelingthecavitationphenomenainincompressibleviscousflows.Aone-fieldformulationisadoptedforthevapor-liquidtwo-phaseflowandtheinterfaceistrackedusingavolumeoffluid(VOF)method.PhasechangeattheinterfaceismodeledusingasimplificationoftheRayleigh-Plessetequation.Interfacejumpconditionsinvelocityandpressurefieldaretreatedusingalevelsetbasedghostfluidmethod.Thelevelsetfunctionisconstructedfromthevolumefractionfunction.Amarchingcubesmethodisusedtocomputetheinterfaceareaattheinterfacegridcells.Aparallelfastmarchingmethodisemployedtopropagateinterfaceinformationintothefield.Adescriptionoftheequationsandnumericalmethodsispresented.Resultsforacavitatinghydrofoilarecomparedwithexperimentaldata.

简介：BiochaninA(BCA),themostabundantisoflavoneinchickpeas,presentsawiderangeofbiologicalactivities,suchashypolipidaemic,anti-oxidative,antiproliferative,andestrogen-likeeffects.WeinvestigatedtheinteractionbetweenBCAandhumanserumalbumin(HSA)viaseveraltechniques.UV–VisabsorptionspectroscopyverifiedtheconformationalvariationofHSAafterBCAaddition,andfluorescencespectroscopyrevealedtherelevantbindingparameters.CirculardichroismspectroscopywasusedtoestimatethesecondarystructuralchangesofHSAwithandwithoutBCA.MoleculardockinganddynamicssimulationswerethenappliedtostudythecharacteristicsofHSAwithBCA.EnergydecompositionanalysiswasusedtoprovethatTrp214insubdomainIIAofHSAisthemostlikelybindingsiteofBCA.VanderWaalsforcesandhydrophobicinteractionsmayplayimportantrolesduringthebindingprocess.AllofourresultsshowedthatBCApresentssignificantbindingaffinitytoHSA,thusconfirmingthattheroleofHSAhasasanefficienttransporterofbiomolecules.

简介：TodeterminetheshearwavevelocitystructureandpredominantperiodfeaturesofT?naztepein?zmir,Turkey,wherenewbuildingsiteshavebeenplanned,active–passivesurfacewavemethodsandsingle-stationmicrotremormeasurementsareused,aswellassurfaceacquisitiontechniques,includingthemultichannelanalysisofsurfacewaves(MASW),refractionmicrotremor(ReMi),andthespatialautocorrelationmethod(SPAC),topinpointshallowanddeepshearwavevelocity.Forengineeringbedrock(V_s>760m/s)conditionsatadepthof30m,anaverageseismicshearwavevelocityintheupper30mofsoil(AV_s30)isnotonlyacceptedasanimportantparameterfordefininggroundbehaviorduringearthquakes,butaprimaryparameterinthegeotechnicalanalysisforareastobeclassifiedbyV_s30accordingtotheNationalEarthquakeHazardsReductionProgram(NEHRP).ItisalsodeterminedthatZ1.0,whichrepresentsadepthtoV_s=1000m/s,isusedforgroundmotionpredictionandchangedfrom0to54m.Thesediment–engineeringbedrockstructureforT?naztepethatwasobtainedshowsengineeringbedrocknodeeperthan30m.Whencompared,thedepthofengineeringbedrockanddominantperiodmapandgeologyaregenerallycompatible.

简介：易碎的区域上的气候变化的量的效果是对气候变化的回答的地里的一个热话题。以前的研究把品质上记录气候的影响在耕作牧剧交错群落(FPE)在边界移动上变化；然而，为检测气候贡献的量的方法仍然保持相对有限。自从1970，基于气象学的车站的长期的数据和陆地使用的解释，1970年代，1980年代，1990年代和2000年代的气候和陆地使用边界被描出。为了检测气候贡献到FPE边界，变，我们开发了二个量的方法在东方西方探索气候和陆地使用边界的空间时间的模式(或南方北方)(渔网方法)并且横断方向(数字海岸线分析系统，DSAS方法)。结果显示重要差别在不同时期期间在不同区域在气候边界，陆地使用边界，以及气候贡献被展出。西北FPE有更小的变化，当东北FPE有更大的移动时。在更大的Hinggan山和内部蒙古的高原的东南穗的西北部分，气候边界的移动是显著地与陆地使用边界有关。在一个东方西方方向的气候贡献从10.7%～44.4%，并且那些从4.7%～55.9%在一个南方北方方向变化了。从DSAS的结果的多数与从渔网的那些一致。DSAS方法为在小规模的精确察觉更精确、合适，而渔网方法简单在大规模很快并且直接进行统计分析。我们的研究将是有用的适应气候变化，以开发生产潜力，以及在北中国保护FPE的环境。

简介：

简介：这个地点和结构的参数无常的动态效果的考虑被标准在大多数国家为核电厂(NPP)要求。抗地震的标准提供二个基本方法分析参数无常。手工地直接处理计算地板反应系列(皇家学会会员)确定的途径珍视是第一个方法。第二个方法是执行概率统计的FRS的分析根据蒙特卡罗方法结果。二个方法能仅仅反映不明确的参数的全面效果，并且结果不能为某个参数影响和贡献被屏蔽。在这研究，基于NPP的地板反应系列的动态分析，为各种各样的不明确的参数的估计的影响的一个全面索引被介绍并且推荐，包括关联系数，回归斜坡系数和旋风秋千。在NPP地震标准补偿指导的缺乏，建议方法能有效地被用来从敏感，尖酸和统计秋千的方面评估各种各样的参数的贡献关联。最后，例子被提供从系统、直觉的观点验证指示物的集合，例如NPP的皇家学会会员的结构参数和贡献的影响的无常。这个索引对参数的不同类型敏感，它为评估为NPP要求的抗地震的参数提供一种新技术。

简介：NanosizedGa-containingZSM-5zeoliteswerepreparedviaisomorphoussubstitutionandimpregnationfollowedbycharacterizedusingvarioustechniques.Thecatalyticperformanceofthezeolitesforthearomatizationof1-hexenewasinvestigated.TheresultsindicatethatisomorphoussubstitutionpromotestheincorporationofGaheteroatomsintotheframeworkalongwiththeformationofextra-frameworkGaO+species（[GaO+]a）thathavestrongerinteractionswiththenegativepotentialoftheframework.Inaddition,basedonthePy-IRresultsandcatalyticperformance,the[GaO+]aspecieswithstrongerLewisacidsitesproducedabettersynergismwithmoderateBr?nstedacidsitesandthusimprovedtheselectivitytoaromaticcompounds.However,theimpregnationresultsintheformationofGa2O3phaseandsmallamountsofGaO+speciesthataremainlylocatedontheexternalsurface（[GaO+]b）,whichcontributetoweakerLewisacidsitesduetoweakerinteractionswiththezeoliteframework.During1-hexenearomatization,thenanosizedGaisomorphouslysubstitutedZSM-5zeolitesamples（Gax-NZ5）exhibitedbettercatalyticperformancecomparedtotheimpregnatedsamples,andthehighestaromaticyield（i.e.,65.4wt%）wasachievedovertheGa4.2-NZ5sample,whichcontainedwiththehighestGacontent.