简介:Anewblock-basedfractalimagecodingalgorithmcalledFractalBlockCodinginResidueDomain(FBCRD)isproposed.InbasicFractalBlockCoding(FBC)algorithm,eachblock(calledrangeblock)isencodedbyanaffinemappingfromadomainblockwithinthesameimagetoitself.Thedecoderusestheparametersofthesemappingstosynthesizethereconstructedimagethroughaniterativeprocedure.FBCRDisamodificationofbasicFBC.InFBCRD,rangeblocksanddomainblocksareallresidueblockssubtractedfromtheirblockmeansandboththeparametersofaffinemappingsandblockmeansarecoded.Thismodificationleadstofeweriterationsatthedecoder.AnoptimizeddecodingstrategyisalsointroducedwhichreducestotaldecodingtimebymorethanhalfofthatofbasicFBC.Thisimprovementisfavorableforrealtimeimplementationoffractalimagecompression.
简介:原子磁性的回声光谱学(~1H-NMR),同步荧光spectrometry(SFS)和钌离子催化的质子氧化(RICO)方法被用来在阿曼残余部分决定polyaromatic原子核的化学结构。~1H-NMR分析的结果证明在aromatics,树脂和沥青质单位的芳香的戒指的平均数字分别地是3.2,5.6和8.2。SFS被用来在残余部分,在aromatics的芳香的戒指的主要分发范围,树脂和沥青质调查芳香的戒指的分发分别地是3-4戒指,3-5戒指和超过5枚戒指。在残余部分的芳香的网络被氧化生产众多的羧基的酸。benzenepolycarboxylic酸的类型和内容benzenetricarboxylic酸,benzenetetracarboxylic酸,benzenepentacarboxylic酸和benzenehexacarboxylic酸例如酞酸酸,在核心揭示了芳香的原子核的压缩类型。联本基部分(BIPH),压缩cata的部分(CATA),压缩仙子的部分(仙子)和压缩索引(BCI)基于形成的benzenepolycarboxylic酸被计算。结果暗示在所有残余部分有更少的联本基类型结构。aromatics部分几乎由压缩cata的类型系统组成,并且,沥青质部分完全在树脂部分由压缩仙子的类型系统组成共存二种类型,此处压缩仙子的类型在压缩cata的类型上是占优势的。基于在学习,部件-aromatics,树脂和沥青质获得的分析结果-被给多半结构的模型。
简介:TheS-RHTtechnologyisdevelopedbyFRIPPforresiduehydrotreatinginthefixedbedinordertoprocessthehighsulfurcrudeandincreasetheyieldoflightdistillates.Thetechnologycanbeusedfortreatingvariouskindsofatmosphericresidues(AR)orvacuumresidues(VR)withatotalmetalcontentlessthan150ppmundertheoperatingconditionsofatemperaturerangingfrom360-410℃,ahydrogenpartialpressureof14-15MPa,aLHSVof0.20-0.30h-1andahydrogentooilratioof700-1000.AcertainamountoflightproductscanbeobtainedandthehydrotreatedatmosphericresiduecanfullymeettheneedsforthefeedstocktoRFCCorablendingfeedstocktoFCC.BasedontheS-RHTtechnology,a2Mt/aresiduehydrotreatingunithasbeenconstructedandsuccessfullystartedupatMaomingPetrochemicalCompanybytheendof1999.
简介:Thecompatibilitybetweendirectcoalliquefactionresidue(DCLR)andfivekindsofpurebitumen(Shell-90,SK-90,ZSY-70,DM-70andKLMY-50)wasevaluatedinthisstudy.Therheologicalcharacteristics,glasstransitiontemperatures(T_g),solubilityparameters(SP)andSARA(saturates,aromatics,resins,andasphaltenes)fractionsofDCLR,fivekindsofpurebitumenandtheirblends(namedasDCLRmodifiedbitumen)weremeasuredusingthedynamicshearrheometer(DSR),differentialscanningcalorimetry(DSC),viscosity,andSARAtests,respectively.AndthecompatibilitybetweenDCLRandpurebitumenwascharacterizedwiththreeapproaches,viz.theCole-Coleplot,T_g,andthesolubilityparameterdifference(SPD)method.Sinceeachmethodhasitsownworkingmechanism,thecompatibilityrankingfortheDCLRandfivekindsofpurebitumenisslightlydifferentaccordingtothethreeapproaches.However,thedifferenceisprettycloseandsometimescanbeignored.Thegeneralcompatibilityrankingdecreasesinthefollowingorder:Shell-90≈SK-90>DM-70≈ZSY-70>KLMY-50,whichisaffectedbytheasphaltenescontentandthecolloidindex(I_c)valueinthepurebitumen.Purebitumenwithlowerasphaltenescontentandcolloidindex(I_c)valuehasbettercompatibilitywithDCLR.
简介:Anewmethodwasdescribedforusingarecurrentneuralnetworkwithbiasunitstopredictcontactmapsinproteins.Themaininputstotheneuralnetworkincluderesiduespairwise,residueclassificationaccordingtohydrophobicity,polar,acidic,basicandsecondarystructureinformationandresidueseparationbetweentworesidues.Inourwork,adatasetwasusedwhichwascomposedof53globulinproteinsofknown3Dstructure.Anaveragepredictiveaccuracyof0.29wasobtained.Ourresultsdemonstratetheviabilityoftheapproachforpredictingcontactmaps.
简介:Furfuralresidue,anindustrialwaste,isakindofstronglyacidicorganicmaterials.Itscomprehensiveutilizationinagricultureshowedasignificanteffectoncontrolofsoilalkaliztion,ameliorationofsolonetzandincreaseofcropyields.IndetailitmayadjustpH,depressalkalinity,reducebulkdensityandcompactnessandincreasewaterpermeabilityandretentionabilityofthesoil.Meanwhileagriculturaluseoffurfuralresidueprovidedaneffectivewaytoavoiditspollutionofthesoil,waterandair.
简介:在这份报纸,环境扫描电子显微镜学(ESEM)被用于描绘矿物质和处理残余(COPR)的铬铁矿矿石的元素分发。测试结果证明忍受Crbrownmillerite发生在COPR粒子的边界,当有在它的结构的Cr(VI)的hydroandradite在内介绍COPR粒子时。方镁石和方解石发生在空隙的区域。Ca,Fe和艾尔在整个COPR粒子是分布式的元素分析表演,和Mg主要在空隙的区域或在粒子表面上存在。Cr的一个更低的内容在COPR粒子是均匀地分布式的,当Cr的稍微更高的集中发生在粒子内时。让Cr从COPR移居将花一相对更长的时间,这被建议,特别为hexavalent铬,因此沥滤的时间和粒子尺寸可以是影响Cr(VI)的版本的二个重要因素。
简介:红泥是从氧化铝生产产生的粘性的苛性的残余。考虑钪的相对可观的内容和可获得性,红泥能被看作一个重要、有希望的钪资源而非稳固的浪费。这份报纸主要是包括酸的沥滤,溶剂抽取和离子交换基于最广泛地使用的hydrometallurgical过程从红泥考察钪恢复的调查吸附。从红泥的钪的恢复应该在全面程序表的发展被看作一个直接目的而非一个副产品,这被认为。以便与高钪恢复和低费用完成environmentally友好的过程,更多的注意被要求对优化到减少矿物质酸消费的钪的选择沥滤被给予并且减轻污染,并且为钪与高选择和识别开发新溶剂抽取系统和新奇离子交换吸附材料。