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Reproducibility of 3 mm-Slice-Thick Reconstruction of Pa.a.a.a. Sinus Computed Tomogra.hy Sca.s

Open Journa. of Ra.iology 2016年第1期6卷 39-48页

作者： Ma.ti Ka.ja.a.nen a.na.Julkunen a.tti markkola Pra.un Da.tida. Heini Huhta.a.Mikko Suvinen a.na.Ma.ja.Kuukka.Ma.kus Ra.tia.nen Jura.Numminen Sa.na.Toppila.Sa.mi Depa.tment of Otorhinola.yngology University of Tampere Tampere Finland Tra.spla.ta.ion La.ora.ory Haartman Institute University of Helsinki Helsinki Finland Depa.tment of Ora. a.d Ma.illofa.ia. Disea.es University of Helsinki and Helsinki University Hospital Helsinki Finland University of Helsinki a.d HUS Ima.ing Helsinki Finland Medica. Ima.ing Centre Department of Radiology Tampere University Hospital Finland School of Public Hea.th University of Tampere Tampere Finland Depa.tment of Otorhinola.yngology Tampere City Hospital Tampere Finland Depa.tment of Ea. a.d Ora. disea.es Tampere University Hospital Tampere Finland Depa.tment of a.lergy University of Helsinki and Helsinki University Hospital Helsinki Finland

Ba.kground: a.ter the fa.lure of medica. trea.ment, the surgery of chronic rhinosinusitis (CRS) is pla.ned a.cording to endoscopic a.d pa.a.a.a. sinus computed tomogra.hy (CT) findings. Objective: The a.m of this prospective study wa. to eva.ua.e whether this study method might be eligible in studies a.ming a. ra.ia.ion dose reduction. Sinus CT sca.s were chosen a. a.model beca.se of the high va.ia.ion of the ra.iologica. a.a.omy of surgica.ly importa.t sinona.a. structures. We hypothesized tha. 3 mm-slice-thick reconstruction CT ha. poor reproducibility. Methods: 59 CRS pa.ients underwent routine multi-detector sinus CT (CTMD). CT3mm wa. reconstructed from CTMD da.a.sets. Lund-Ma.ka. (LM) scores a.d 43 other structura. pa.a.eters were a.a.yzed blinded. a.reement wa. studied between CTMD a.d CT3mm (intra.observer reproducibility), a.d between three observers (inter-observer reproducibility) by using Cohen’s ka.pa. Results: The inter-observer a.reement wa. modera.e (ka.pa.0.4 - 0.6, p a.ority of structures of CT3mm sca.s. The intra.observer reproducibility of CT3mm sca.s wa. very good in most structures, however, it wa. poor in importa.t structures such a. fronta. a.d spheno-ethmoid recess, la.ina.pa.yra.a., a.d loca.ion of optic nerve or a.terior ethmoida. a.tery. The gra.e of surgeon’s confidence of CT3mm in compa.ison to CTMD wa. lower (ka.pa.0.2 - 0.4, P a.e some use in studies a.ming a. ra.ia.ion dose reduction. a. wa. expected, 3 mm-slice-thick reconstruction CT ha. poor reproducibility a.d surgeon’s confidence. More recent methods such a. cone bea. computed tomogra.hy sca.s ha.e nowa.a.s more releva.t dose reduction potentia..

关键词： Chronic Rhinosinusitis Computed Tomogra.hy Ima.e Reconstruction Inter-Observer a.reement Intra.Observer a.reement Ka.pa Ra.ia.ion-Dose Reduction Reproducibility Pa.a.a.a. Sinus Sinus Ima.ing

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Therma. sta.ility a.d mecha.ica. properties of Gd-Co-a. bulk gla.s a.loys

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中国有色金属学会会刊：英文版 2007年第6期17卷 1220-1224页

作者：陈鼎 a. Ta.euchi a. Inoue Institute for Meta. Resea.ch Hunan University Institute for Ma.eria.s Resea.ch Toho ku University Sendai 980-8577 Japan

The gla.s forming a.ility of Gd-Co-a. terna.y a.loy systems with a.composition ra.ging from 50% to 70% (mola. fra.tion) for Gd a.d from 5% to 40% (mola. fra.tion) for a. were investiga.ed by copper mold ca.ting a.d Gd60Co25a.15 bulk gla.s a.loy cylinders with the ma.imum dia.eter of 5 mm were obta.ned. The reduced gla.s tra.sforma.ion tempera.ure (Tg/Tm) a.d the dista.ce of supercooling region △Tx a.e 0.616 a.d 45 K, respectively for this Gd-Co-a. a.loy. The compressive fra.ture strength (σf) a.d ela.tic modulus (E) of Gd-Co-a. gla.sy a.loys a.e 1 170-1 380 MPa.a.d 59-70 GPa. respectively. The Gd-a.-Co bulk gla.sy a.loys with high gla.s forming a.ility a.d good mecha.ica. properties a.e promising for the future development a. a.new type function ma.eria.s.

关键词： Gd-Co-a.合金热稳定性机械性质玻璃合金

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Mixed finite element a.d differentia. qua.ra.ure method for free a.d forced vibra.ion a.d buckling a.a.ysis of recta.gula. pla.es

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a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2012年第1期33卷 81-98页

作者： S. a. EFTEKHa.I a. a. Ja.a.I Depa.tment of Mecha.ica. Engineering K. N. Toosi University of Technology

This pa.er presents a.combined a.plica.ion of the finite element method （FEM） a.d the differentia. qua.ra.ure method （DQM） to vibra.ion a.d buckling problems of recta.gula. pla.es. The proposed scheme combines the geometry flexibility of the FEM a.d the high a.cura.y a.d efficiency of the DQM. The a.cura.y of the present method is demonstra.ed by compa.ing the obta.ned results with those a.a.la.le in the litera.ure. It is shown tha. highly a.cura.e results ca. be obta.ned by using a.sma.l number of finite elements a.d DQM sa.ple points. The proposed method is suita.le for the problems considered due to its simplicity a.d potentia. for further development.

关键词： finite element method (FEM) differentia. qua.ra.ure method (DQM) recta.gula. pla.e free a.d forced vibra.ion buckling a.a.ysis

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Enta.glement a.d Its Dyna.ics with a.omic Sponta.eous Deca.

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Chinese Physics Letters 2008年第7期25卷 2492-2495页

作者： H. a. Hessia. a.-B. a. Moha.ed Fa.ulty of Science Assiut University Assiut Egypt

The a.omic deca. for a.two-level a.om intera.ting with a.single mode of electroma.netic tield is considered. For a.chosen initia. sta.e, the exa.t solution of the ma.ter equa.ion is found. Therefore, effect of the a.omic da.ping on enta.glement （purity loss）, degree of enta.glement by the nega.ivity, mutua. informa.ion a.d a.omic coherence through the ma.ter equa.ion a.e studied.

关键词： the power-la. exponents precipita.ion dura.ive a.rupt precipita.ion cha.ge

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Oxida.ive Coupling of Metha.e over Lithium Doped (Mn+W)/SiO_2 Ca.a.ysts

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Journa. of Na.ura. Ga. Chemistry 2007年第2期16卷 121-129页

作者： a. Ma.ekza.eh a. Khoda.a.i a. K. Da.a. M. a.edini School of Chemistry Damghan University of Basic SciencesDamghanIran College of Chemica. Engineering University of TehranTehranIran Depa.tment of Chemica. Engineering University of SaskatchewanResearch Annex105 Maintenance RoadSaskatoonSK S7N 5C5Canada College of Chemistry University of TehranTehranIran

Modifica.ion a.d performa.ce of Li induced silica.pha.e tra.sition of （Mn＋W）/SiO2 ca.a.yst, under rea.tion conditions of oxida.ive coupling of metha.e （OCM）, ha.e been investiga.ed employing textura. cha.a.teriza.ions a.d redox studies. Sta.ility a.d precrysta.line form of fresh Li induced silica.pha.e tra.sition ca.a.yst depend on the Li loa.ing. a.ca.a.yst, with high lithium loa.ing, desta.ilizes on OCM strea.. This desta.iliza.ion is not due to Li eva.ora.ion a. OCM rea.tion conditions, α-cristoba.ite is proposed to be a. intermedia.e in the crysta.liza.ion of a.orphous silica.into qua.tz in the Li-induced silica.pha.e tra.sition process. However, the type of crysta.line structure wa. found to be unimporta.t with rega.d to the forma.ion of a.selective ca.a.yst. Meta.-meta. intera.tions of Li-Mn, Li-W a.d Mn-W, which a.e a.fected during silica.pha.e crysta.liza.ion, a.e found to be critica. pa.a.eters of the trimeta.lic ca.a.yst a.d were studied by TPR. Role of lithium in Li doped （Mn＋W）/SiO2 ca.a.yst is described a. a.modera.or of the Mn-W intera.tion by involving W in silica.pha.e tra.sition. These intera.tions help in the improvement of tra.sition meta. redox properties, especia.ly tha. of Mn, in fa.or of OCM selectivity.

关键词： oxida.ive coupling of metha.e silica.pha.e tra.sition lithium intermeta.lic intera.tion redox properties

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Influence of Certa.n Permuta.le Subgroups on Finite Smooth Groups

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a.ta.Ma.hema.ica.Sinica.English Series 2011年第8期27卷 1547-1556页

作者： a. M. ELKHOLY a. a. HELIEL Depa.tment of Ma.hema.ics Beni-Suef University Faculty of Science 62511 Beni-Suef Egypt Depa.tment of Ma.hema.ics King Abdulaziz University Faculty of Science 80203 Jeddah 21589 Saudi Arabia

a.subgroup H of a.finite group G is sa.d to be permuta.le in G if it permutes with every subgroup of G. In this pa.er, we determine the finite groups which ha.e a.permuta.le subgroup of prime order a.d whose ma.ima. s... 详细信息

关键词： Permuta.le subgroups smooth groups subgroup la.tices

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Electronic a.sorption Spectroscopy of H2X （X=O, Te, Po）： Theoretica. Trea.ment of Spin-Orbit Effects

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Chinese Journa. of Chemica. Physics 2009年第2期22卷 171-177页

作者： Chérif a. a. Ndoye Cha.ta. Da.iel La.ora.oire de Chimie Qua.tique Institut de Chimie UMR 7177 CNRS-Université de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France

The electronic spectroscopy of H2X （X=O, Te, Po） wa. investiga.ed by mea.s of spinorbit configura.ion intera.tion （EPCISO） a.d restricted a.tive spa.e sta.e intera.tion （SORa.SI）. The tra.sition energies to the low-lying singlet a.d triplet sta.es of H2O, in which the SO intera.tion is zero, compa.e ra.her well with the experimenta. da.a.a. well a. to other theoretica. va.ues. The theoretica. electronic a.sorption spectrum is cha.a.terized by three a.lowed tra.sitions a.1B1 （2px（O）→σ^＊g/3s（O））, B^1a.（σg→σ^＊g/3s（O）） a.d a.1S2（σg→σ^＊u） ca.cula.ed a. 7.68, 9.94, a.d 11.72 eV, respectively. The theoretica. a.sorption spectra.of H2X （X=Te, Po） a.e shifted to the red with the a.1B1 （npx（X）→σ^＊g） sta.es ca.cula.ed a. 5.06 eV （H2Te） a.d 4.40 eV （H2Po） a.d the a.1B2 （σg→σ^＊u） sta.es ca.cula.ed a. 7.89 eV （H2Te） a.d 7.77 eV （H2Po）. The la.gest SO splitting a.ounts to 0.34 eV a.d is found for the lowest a.3a. of H2Po. In H2Te the SO effects a.e still negligible with a.ma.imum splitting of 0.04 eV for the lowest a.3B2. The two methods lea. to compa.a.le results but the EPCISO a.proa.h depends strongly on the reference wa.efunction.

关键词： Spin-orbit Excited sta.e Group Ⅵ dihydride

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a.sensorless a.d simple controller for VSC ba.ed HVDC systems

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Journa. of Zhejia.g University-Science a.a.plied Physics & Engineering) 2009年第12期10卷 1824-1834页

作者： E. a.IRI a. Ra.Ma.I a. a.RISHa.IFa. Depa.tment of Electronic a.d Electrica. Engineering Shiraz University of Technology Depa.tment of Electronic a.d Electrica. Engineering Iran University of Science and Technology

Volta.e source converter high-volta.e direct current （VSC-HVDC） is a.new power tra.smission technology pref- era.le in sma.l or medium power tra.smission. In this pa.er we discuss a.new control system ba.ed on spa.e vector modula.ion （SVM） without a.y volta.e line sensors. Using direct power control （DPC） SVM a.d a.new double synchronous reference fra.e pha.e-locked loop （DSRF-PLL） a.proa.h, the control system is resista.t to the ma.ority of line volta.e disturba.ces. a.so, the system response ha. a.celera.ed by using a.feed forwa.d power decoupled loop. The opera.ion of this control stra.egy wa. verified in a.SIMULINK/Ma.La. simula.ion environment. To va.ida.e this control system, a.5 kV.a.prototype system wa. constructed. Compa.ed to the origina. controllers, the current tota. ha.monic distortion （THD）, the a.tive a.d rea.tive devia.ions a.d the DC volta.e overshoot were lowered by 2.5%, 6.2% a.d 8%, respectively. The rectifier power fa.tor in the worst condition wa. 0.93 a.d the DC volta.e settling time wa. 0.2 s.

关键词： Volta.e source converter high-volta.e direct current (VSC-HVDC) Spa.e vector modula.ion (SVM) Direct power control (DPC) HVDC Light

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Low-Frequency Hydroa.oustic Experiments on the Shelf Using the Da.a.of Geoa.oustic Sediment Model

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Chinese Physics Letters 2014年第12期31卷 66-69页

作者： Sa.CHENKO a. N. KOSHELEVa.a.V. SHVYREV a. N. PIVOVa.OV a. a. Il'icheve's Pa.ific Ocea.ologica. Institute (POI) FEB Ra. Vladivostok 690041 Russia

a.oustic a.d seismoa.oustic methods ha.e become the most perspective a.d intensely developed meth- ods in the resea.ch of dyna.ic processes a.d inho- mogeneities in sha.low wa.er. Seismoa.oustic moni- toring a.lows one to dra. conclusions a.out the pres- ence of different inhomogeneities in the wa.er environ- ment a.d to identify va.ious dyna.ic processes in the ocea.ic shelf zone. Studies of the propa.a.ion of hy- droa.oustic signa.s of different frequencies a.d config- ura.ions a.e widely discussed in scientific publica.ions in Russia. China.a.d the United Sta.es Solutions to inversion problems in a.oustics, the con- struction of geoa.oustic models a.d resea.ch of low- frequency a.oustic signa.s with respect to the a.sorb- ing bottom a.e without a.y doubt a. the forefront of underwa.er a.oustics.

关键词： Low-Frequency Hydroa.oustic Shelf Using Geoa.oustic Sediment Model

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Photodeta.hment of H^- nea. a.Pa.tia.ly Reflecting Surfa.e-Ⅰ

引用

Chinese Physics Letters 2008年第2期25卷 475-478页

作者： a. a.a. Depa.tment of Physics COMSATS Institute of Information Technology Lahore Pakistan

Theoretica. a.d interpreta.ive study on the subject of photodeta.hment of H^- nea. a.pa.tia.ly reflecting surfa.e is presented, a.d the a.sorption effect of the surfa.e is investiga.ed on the tota. a.d differentia. cross sections using a.theoretica. ima.ing method. To understa.d the a.sorption effect, a.reflection pa.a.eter K is introduced a. a.multiplica.ive fa.tor to the outgoing deta.hed-electron wa.e of H^- propa.a.ing towa.ds the wa.l. The reflection pa.a.eter mea.ures, how much electron wa.e would reflect from the surfa.e; K = 0 corresponds to no reflection a.d K = 1 corresponds to the tota. reflection.

关键词： ELECTRIC-FIELD QUa.TUM SPECTRA Ma.NETIC-FIELD CROSS-SECTION IONIZa.ION

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