学科分类
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11 个结果
  • 简介:AnimprovedmethodhasbeendevelopedforenrichinganddeterminingtraceIn,Pt,Sn,Co,Hg,Pb,Ni,Bi,Pd,CuandAginhigh-puritygallium.SamplewastreatedbyPDM(partialdissolutionofmatrix)withHCl(11mol/L)-HNO3(0.5mol/L)toasmallresidueofwhichGawasthenremovedbyextractionwith1mlisopropylether.TheconcentratedimpuritiesweredeterminedbyAESprocedure.Therecoveriesfortheele-mentsattherangeof0.02~0.2μgare95~103%;therelativestandarddeviationsfordeterminedimpuritiesoverarangeofn.10-7~n·10-8%are4.3~12%;thedetectionlimitofmostelementscanreachn·10-7~n·10-8%levelwiththeexceptionofHgandPt.Thismethodhasbeensuccessfullyusedtoanalyzemanysam-plessentbyfactoriesandinstitutes.

  • 标签: HIGH-PURITY GALLIUM TRACE elements ATOMIC emission
  • 简介:Inthiswork,amethodbasedonscanningKelvinprobemicroscopyisproposedtoseparatelyextractsource/drain(S/D)seriesresistanceinoperatingamorphousindium–gallium–zinc–oxide(a-IGZO)thin-filmtransistors.TheasymmetrybehaviorofS/Dcontactresistanceisdeducedandtheunderlyingphysicsisdiscussed.ThepresentresultssuggestthattheasymmetryofS/DcontactresistanceiscausedbythedifferenceinbiasconditionsoftheSchottky-likejunctionatthecontactinterfaceinducedbytheparasiticreactionbetweencontactmetalanda-IGZO.Theoverallcontactresistanceshouldbedeterminedbyboththebulkchannelresistanceofthecontactregionandtheinterfacepropertiesofthemetalsemiconductorjunction.

  • 标签: Kelvin探针 接触电阻 薄膜晶体管 锌氧化物 不对称 显微镜
  • 简介:MultilayergalliumandaluminumdopedZnO(GZO/AZO)filmswerefabricatedbyalternativedepositionofGa-dopedzincoxide(GZO)andAl-dopedzincoxide(AZO)thinfilmbyusingpulsedlaserdeposition(PLD)process.TheelectricalandopticalpropertiesoftheseGZO/AZOthinfilmswereinvestigatedandcomparedwiththoseofGZOandAZOthinfilms.TheGZO/AZO(1:1)thinfilmdepositedat400°Cshowstheelectricalresistivityof4.18×10-4Ω·cm,anelectronconcentrationof7.5×1020/cm3,andcarriermobilityof25.4cm2/(V·s).TheopticaltransmittancesofGZO/AZOthinfilmsareover85%.TheopticalbandgapenergyofGZO/AZOthinfilmslinearlydecreaseswithincreasingtheAlratio.

  • 标签: AZO薄膜 脉冲激光沉积 沉积过程 透明薄膜 氧化锌 铝掺杂
  • 简介:AbstractBackgrounds:GALLIUM is a global phase III study that demonstrated significant improvements in progression-free survival (PFS) for obinutuzumab plus chemotherapy (G-chemo) vs. rituximab plus chemotherapy (R-chemo) in previously untreated patients with follicular lymphoma (FL). This study aimed to report the results of a subgroup of patients in China.Methods:Patients were randomized to G-chemo or R-chemo. Responders received maintenance therapy for 2 years or until disease progression. The primary endpoint was investigator (INV)-assessed PFS. Secondary endpoints included the overall response rate (ORR) and complete response rate (CRR) at the end of induction chemotherapy, overall survival (OS), and safety.Results:Overall, 58 patients with FL were randomized to the G-chemo (n = 25) and R-chemo arms (n = 33). The INV-assessed PFS rate at 3 years was 81.8% in the G-chemo arm, vs. 70.2% in the R-chemo arm (hazard ratio 0.35; 95% confidence interval: 0.09-1.34; P = 0.1120). The INV-assessed CRRs (without positron emission tomography [PET]) in these arms were 24.0% and 21.2%, respectively, whereas the ORRs were 80.0% and 90.9%, respectively. INV-assessed CRR-PET was 52.6% in the G-chemo, vs. 60.9% in the R-chemo. Median OS was not reached in either arm. Grade 3 to 5 adverse events were more frequent in the R-chemo arm (97.0% vs. 88.0%).Conclusions:The results of this subgroup analysis were consistent with those of the global population, and they suggest that G-chemo has a positive benefit-risk profile in patients from China with FL.Trial registration:ClinicalTrials.gov, No. NCT01332968.

  • 标签: Chinese Follicular lymphoma GALLIUM Obinutuzumab Rituximab
  • 简介:Objective:Prostatecancers(PCa)inAsianindividualsaremolecularlydistinctfromthosefoundintheirCaucasiancounterparts.ThereisnoriskstratificationtoolforAsianmenwithrapidbiochemicalrecurrence(BCR)followingradicalprostatectomy(RadP).Thisstudyaimstoassessthedetectionrateof^68Ga-prostate-specificmembraneantigen-positronemissiontomography/computedtomography(PSMA-PET/CT)fordiagnosisofclinicalrecurrenceandasatreatmentdecisionmakingtoolinAsianpatientswithBCRpost-RadP.Methods:^68GaPSMA-PETandCTbodywith/withoutbonescan[conventionalworkup(CWU)]wereperformedin55AsianpatientswithBCRwithin36monthspost-RadP.Twoblindedreviewersassessedtheimages.Detectionratesof^68GaPSMAPET/CTwereevaluated,andimpactonmanagementwasreviewedbycomparisonwithCWU.Results:MediantimetoBCRpost-RadPwas8.1months.Detectionratefor^68GaPSMA-PET/CTwas80%(44/55).Apositivescanwassignificantlyassociatedwithincreasingprostate-specificantigen(PSA)level[oddsratio(OR)=1.13(95%CI1.05–1.30),P=0.017],butnotwithhigherGleasongradeorshorterPSAdoublingtime.ComparedtoCWU,68GaPSMA-PET/CTdetectedanadditional106lesionsin33/44patientswithapositivescan,resultinginachangeinmanagementin25/44(56.8%)patients:10tohormonaltherapy(HT)andwholepelvisradiotherapy(RT)inadditiontobedRT,and15topalliativeHTalone.Conclusions:Inthepresentreport,wedemonstratedthediagnosticandtreatmentdecisionutilityof^68GaPSMA-PET/CTinAsianmenwithrapidBCR.DetectionofsmallvolumenodalandsystemicrecurrencesatlowPSAlevels(<1.0ng/mL)highlightstheroleofthetoolinassigningpatientstotreatmentintensificationwithHT-RTorpalliativeHTinpolymetastaticdisease.

  • 标签: ^68Ga PSMA PET/CT PROSTATE cancer ASIAN