简介：Threenewpolysesquisiloxane-boundplatinumcomplexesweresynthesizedviahydrolysisofN,N-di(β-ethylmercaptoethyl)γ-(triethoxysilyl)propylamineorcohydrolysisofthemonomerwithdodecyltriethoxysilaneorwithphenylpropylthiethoxysilaneandimmobilixationonfumedsilica,followedbyreactingwithpotassiumplatiniteinacetoneunderargonatmosphere.Theplatinumcomplexesexhibitedhighcatalyticactivityforthehydrosilylationofolefinsbytriethoxysilane.Theeffectsoftemperatureandtheamountofcomplexonthecatalyticactivity,aswellastherecoveryandreusabilityofthecatalystswereinvestigated.

简介：Ｃｏｍｐｌｅｘ　ｔｉｍｅ－ｓｐａｃｅ　ｓｐｒｅａｄｉｎｇ　ａｎｄ　ｆｏｃａｌ　ｍｅｃｈａｎｉｓｍ　ｏｆ　ｔｈｅ　１９８９　Ｂａｔａｎｇ　ｅａｒｔｈｑｕａｋｅ　ｓｗａｒｍ　（Ｍ＿ｓ＝６．７）（程万正）（陈天长）Ｃｏｍｐｌｅｘｔｉｍｅ－ｓｐａｃｅｓｐｒｅ...

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简介：AnewtypeofcomplexsolidsuperacidcatalystWO3-ZrO2-SO42-withanacidstrengthH0≤-16.04waspreparedbykneadingZr（OH）4oramorphousZrO2withtungsticacid（H2WO4）（W/Zr=0.15）,followedbyexposingthiscomplexhydroxidesto0.5tool/LH2SO4,calcininginairat700～800℃for3h.ThiscatalystpossessesbothstrongBronstedacidityandstrongLewisacidityexperimentallyshowedbyIRobservationofpyridineabsorbedonit.XPSandAEStechniqueswereemployedtoexaminethevalencestatesoftungsten,zirconium,sulfurandtheirinteractions.Thestructureofsulfurspecieswasstudiedbyinfraredspectroscopyandastructuremodelofactivesitewasproposedupontheseresults.

简介：Redphosphor(Y,Gd)BO3:Eu3+withgrainshape,smallsize,non-agglomerate,highcrystallinityandgoodphotoluminescence(PL)intensitywaspreparedbyacomplexmethodthattheprecursorofthephosphorwaspreparedbyco-precipitationmethodandthephosphorwaspreparedbycombustionmethod.TheSEMphotosandthephotoluminescencespectrumexcitedunderVUVshowthatthemorphologyandluminescentpropertiesofthisphosphoraresatisfiedwhenanappropriateamountofureawasadoptedasthecombustionagentinthepreparationprocedure.

简介：AbstractTotal elbow arthroplasty as a treatment option for open elbow fracture is relatively rare described. We reported a 39 years old polytrauma patient with complex open elbow fracture (Gustilo-Anderson type IIIB). The patient presented with large soft tissues defect on dorsal part of the left elbow, ulnar palsy due to the irreparable loss of the ulnar nerve, distal triceps loss due to the complete loss of the olecranon, loss of both humeral condyles with collateral ligaments and complex elbow instability. Only few similar cases have been published. Reconstructive surgery included repetitive radical debridement, irrigation, vacuum assisted closure system therapy, external fixation, coverage of the soft tissue defect with fascia-cutaneous flap from the forearm. Four months after the injury, total elbow arthroplasty with autologous bone graft (from the proximal radius) inserted in the ulnar component, was performed. At 3 years postoperatively, the patient is able to perform an active flexion from 0° to 110° with full pronosupination. Only passive extension is allowed. The ulnar neuropathy is persistent. Patient has no signs of infection or loosening of the prosthesis.

简介：到目前为止它是不清楚的是否演变氧的建筑群(OEC)的版本包括PsbO，PsbP，和PsbQ蛋白质的子单元被photosystemII(PSII)膜的phosphorylation在轻应力下面影响。在这个工作，不同phosphorylatedPSII膜从菠菜被获得。Phosphorylation部分在轻应力下面从PSII膜压制了PsbO，PsbP，和PsbQ蛋白质的版本。反应的氧种类包括superoxide阴离子，氢过氧化物和氢氧根基，在non-phosphorylated和phosphorylatedPSII膜涉及PsbO蛋白质的小部分的版本，然而并非在PsbP和PsbQ蛋白质的版本。建议的结果，PsbO，PsbP，和PsbQ蛋白质的版本部分是，这phosphorylation在PSII膜调整的所有，和在在non-phosphorylatedPSII膜的OEC子单元的版本的反应的氧种类的角色与在phosphorylatedPSII膜一样。

简介：AnovelTb（III）ternarycomplexTb（p-BBA）_3MAAwassynthesizedwith4-benzoylbenzoicacid（p-BBA）andmethacrylicacid（MAA）asligands.ThecomplexwascharacterizedbyIR,UV-visible,thermogravimetricanalysisandfluorescencespectroscopy.Monitoredat544nm,thecomplexdisplayedwideandstrongexcitationbandat300–400nm,whichmatchedwellwiththe365nm-emittingUVchip.Thecomplexexhibitedexcellentgreenemissionat544nm（~5D_4→~7F_5transitionofTb~（3＋））underanexcitationat365nm.Besides,thecomplexshowedhighthermalstability.Itsintramolecularenergytransferprocesswasfurtherdiscussed.Furthermore,thecomplexalsohadhigherfluorescencelifetime（1.38ms）andhigherquantumyield（0.372）.Finally,electroluminescentpropertiesindicatedthatwhenusedtofabricateLEDwith365nmUVchip（powerefficiencyis18.6lm/W）,thecomplexremaineditsfavorableopticalperformance.TheseresultsimpliedthatTb（p-BBA）_3MAAcouldbeusedasagreenphosphorforNUV-basedwhiteLED.

简介：TheternaryCu(Ⅱ）complexwith2,2′-bipyridyl(bipy)andL-methioninte(L-Met)hasbeensynthesizedandcharacterizedbyelementalanalysis,molarconductivity,UV-Visspectra,IRspectraandpH-potentiometrictitrationmethods.Thestructureofthecomplex[Cu(L-Met)(bipy)(H2O)]ClO4·3/8H2OwascharacterizedbytheX-raydiffractionanalysis.Itcrystallizesinthetriclinicsystem,spacegroupP1withfourmoleculesinaunitcellofdimensions,a=0.7656(2)nm,b=1.3142(3)nm,c=2.0596(4)nm,α=97.70(3)°,β=97.96(3)°,γ=94.33(3)°，V=2.0244(8)nm^3,R1=0.0441andwR2=0.0678,Thecrystalcontainsfourcrystallographicallyindependent[Cu(L-Met)(bipy)(H2O)]^+complexes(Cu1-Cu4),havingadistortedsquare-pyramidalgeometrywiththesamecoordinatedatomsaroundeachcoppercenter.Thebaseplaneisoccupiedbytwonitrogenatomsofonebipy,theaminonitrogenatomandonecarboxylateoxygenatomfromeachindependentL-Metmoiety,andonewateroxygenatanaxialposition.CulandCu3areessentiallyenantiomersofCu2andCu4.Thefourmoleculesarepackedwitheachotherbyintermolecularhydrogen-bondingandaromatic-ringstackinginteractions.

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简介：Thispublisher’snotereportscorrectionstothreeofthefiguresin[Photon.Res.4,49(2016)].

简介：ThispaperreportsastudyofcomplexfocussingacousticfieldsofaconvexphasedarrayprobewidelyusedinultrasonicdiagnosticB-scanner.Thetimedelaynecessaryforelectronicfocussingandforgeometricfocussingofcomplexfocussingisgiven.BymeansofHelmholtz‘sintegralformula,theexpressionsofacousticfieldswereobtainedfortheelectronicfocussingandcomplexfocussing.Withsimpson‘snumericalintegral,agreatdealofcomputationswascarriedoutwithan86/330computer.Bymeansofusingdifferentparameters,anoptimumfocalrangeandbeamwidthofa4sequenceselectronicandcomplexfocussingacousticsystemwasselected.WithanEUB-40ultrasounddiagnosticB-scannerproducedbytheHitachicompany,thelateralfocussingacousticfieldandlateralresolutioninanechoictankwerephotographedbylatticingmethodandtheexperimentalresultiscon-sistentwiththetheory.

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简介：ＡｎＥｍｉｓｓｉｏｎｏｆＣｏｍｐｌｅｘＰａｒｔｉｃｌｅｓｉｎＣｏｕｌｏｍｂＩｎｓｔａｂｉｌｉｔｙｉｎＲｅａｃｔｉｏｎｓ３０ＭｅＶ／ｕ４０Ａｒ＋１５９ＴｂａｎｄｎａｔＡｇ￥ＤａｉＧｕａｎｇｘｉ，；ＦｕＹａｎｂｉａｏ；ＨｅＺｈｉｇｏｎｇ；?..

简介：AbstractBackground:We sought to explore an optimal clinical nursing mode following a hybrid surgery for cerebral arteriovenous malformation.Methods:Patients with complex cerebral arteriovenous malformations seen in our neurosurgery department from January 2016 to December 2017 were prospectively enrolled. The hybrid surgery protocol included "angiographic diagnosis, surgical resection, and intraoperative angiographic evaluation" and "angiographic diagnosis and embolization, surgical resection, and intraoperative angiographic evaluation" . The patients were randomly stratified into intensive care group and routine care group. After surgery, intensive or routine care was provided, and the prognosis of patients was evaluated, with a subsequent comparative analysis.Results:A total of 109 cases were divided into the routine nursing group (n = 54 cases) and intensive nursing group (n = 55 cases). There were no significant differences between the two groups in baseline data before surgery. Postoperative lung infection in the intensive nursing group was significantly less frequent than those in the routine nursing group (5.5% vs. 18.5%, P=0.039) with pulmonary infection and lower extremity venous thrombosis (5.5% vs. 24.1%, P=0.006). The average hospital stay in the intensive nursing group was 14.4 ± 5.78 days, which was significantly lower than that in the routine nursing group (19.3 ± 6.38 days, P=0.013). At 3 months’ follow-up after surgery, the Generic Quality of Life Inventory-74 (GQOLI-74) dimension score and GQOLI-74 total score in the enhanced group were significantly better than those in the routine nursing group (P=0.017 and 0.023, respectively).Conclusions:Intensive postoperative nursing can improve the safety of patients after hybrid surgery, reduce the postoperative complications and the average length of hospital stay, and improve the quality of life of patients.

简介：AseriesofCe-Fe-Zr-O(x)/MgO(xdenotesthemassfractionofCe-Fe-Zr-O,x=10%,15%,20%,25%,30%)complexoxideoxygencarriersforselectiveoxidationofmethanetosynthesisgaswerepreparedbytheco-precipitationmethod.ThecatalystswerecharacterizedbymeansofX-raydiffractionandH2-TPR.TheXRDmeasurementsshowedthatMgFeO4particleswereformedandFe2O3particleswelldispersedontheoxygencarriers.Thereactionsbetweenmethanedilutedbyargon(10%CH4)andoxygencarrierswereinvestigated.SuitablecontentofCeO2/Fe2O3/ZrO2mixedoxidescouldpromotethereactionbetweenmethaneandoxygencarriers.Therearemainlytwokindsofoxygenofcarriers:surfacelatticeoxygenwhichhadhigheractivitybutlowerselectivity,andbulklatticeoxygenwhichhadloweractivitybuthigherselectivity.Amongallthecatalysts,Ce-Fe-Zr-O(20%)/MgOexhibitedthebestcatalyticperformance.Theconversionofthemethanewasabove56%,andtheselectivityoftheH2andCOwerebothabove93%,theratioofH2/COwasstableandapproachedto2foralongtime.

简介：Ti-richgarnetisfoundwithincalciticijolitefromtheOkacarbonatitecomplexinCanada,whichischaracterizedby58%–73%andraditecomponent（2.12wt.%–4.18wt.%TiO2）andclassifiedasmelanite.Thegarnetdisplayscomplexzoningandcontainsabundanthighfieldstrengthelements（HFSEs）andrareearthelements（REEs）.Threegroups（Ⅰ,Ⅱ,Ⅲ）havebeenidentifiedbasedontheirpetrographicnature.ComparedtogroupsⅡandⅢ,GroupⅠgarnetcorescontainhigherTiO2,MgO,HFSE,andREEandlowerSiO2abundances.Thedistinctchemicalandpetrographicsignaturesoftheinvestigatedgarnetscannotbeattributedtosimpleclosedsystemcrystallization,buttheyareconsistentwiththemulti-pulsemagmamixing.CombinedwithpreviouslyreportedU-Pbagesforapatitefromthecalciticijolite,atleastthreestagesofmagmaevolutionandsubsequentmixinghavebeeninvolvedinthegenerationofcalciticijoliteatOka.Theearly-formedmeltthatgeneratedGroupIgarnetcorewaslatermixedwithatleasttwosmall-volume,moreevolvedmelts.Theintermediatestagemeltformedtheremaininggarnetalongwithsomepyroxene,calcite,nepheline,andapatiteat127±3.6Ma.Theyoungest,mostevolvedmeltgeneratedthemajorityofpyroxene,calcite,nepheline,andapatitewithinthecalciticijoliteat115±3.1Ma.

简介：Dithia-monoaza18-Crown-6anditsimmobilizationproduct,silica-bound1,7-dithia-4-aza-10,13,16-trioxa-cyclooctadecaneviaaspacerofthreecarbonatoms,anditsplatinumcomplexhavebeensynthesized.Itisfoundthattheplatinumcomplexisanefficienthydrosilylationcatalystforolefins.TheXPSdataoftheplatinumcomplexarereported.

简介：Thevolcano-sedimentarysuccessionaroundWadiZaghrainSinai,atthenorthernmostsegmentoftheArabianNubianShield,comprisesvolcanicrocksinterbeddedwithratherimmaturesediments.Thesuccessionisdominatedbyintermediatetosilicicvolcanicsofmedium-tohigh-Kcalc-alkalineaffinity.Itisdividedintotwounits,thelowerunitincludesintermediaterocksanddacitesinterbeddedwithgraywackes,semi-pelitesandpelitesandtoppedbypolymictconglomerates.Thisunitissubjectedtofoldingandregionalmetamorphism(uptogarnetzone)andisintrudedbyquartzdiorite-granodioriteinducing,locally,low-pressurecontactthermalmetamorphism.Theunmetamorphosedupperunitencompassesacidvolcanicsintercalatedwithlitharenite,sublithareniteandminorarenite.Therhyolitesofthisunitpertaintothehighlyfractionatedgranitesandarecharacterizedbyanagpaiticindex(NK/A)rangingfrom0.87to0.96.Theymayreflecteitherextensiveinteractionofsubduction-relatedmagmaswiththecontinentalcrustorachangeinthetectonicregime.Thepresentlithologicalandgeochemicalcharacteristicsofthestudiedsedimentstogetherwithavailablezirconagesindicateratherdistalprovenanceoftheirdetritus.Thisdetrituscomprisesfluvial-alluvialsedimentsaccumulatedintheintermontanebasins,whicharehalf-grabensortiltedfaultblocks.Thetectonicsettingofthedepositionalbasinsisactivecontinentalmarginandcontinentalislandarcs.GeochemicalpatternsoftheZaghravolcano-sedimentarysuccessionindicatetheircorrelationwiththeDokhanVolcanics-HammamatClasticssequenceoftheEasternDesertofEgypt.Also,theZaghravolcanicsdisplaygeochemicalsimilaritieswiththoseexposedinSinai,attheRutig,FeraniandIqnaShar’aareas.TheZaghrasuccessionisdatedasEdiacaranbutisnotrelatedeithertotheensimaticislandarcassemblageortotherift-relatedassemblageformedduringtheearlystagesofthebreak-upofRodiniaaspreviouslythought.