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Performance measure for image fusion considering region information

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第4期8卷 559-562页

作者： lIU Gang lü Xue-qin School of Power and Automation Engineering Shanghai University of Electric Power Shanghai 200093 China

An objective performance measure for image fusion considering region information is proposed. The measure not only reflects how much the pixel level information that fused image takes from the source image, but also considers the region information between source images and fused image. The measure is meaningful and explicit. Several simulations were conducted to show that it accords well with the subjective evaluations.

关键词： Image fusion Information fusion Image processing

Absorption Spectroscopy of （8,1） Band in d^3△-a^3П System of CS Radical

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Chinese Journal of Chemical Physics 2012年第5期25卷 513-518,I0003页

作者： Chuan-liang li lun-hua Deng Yan Zhang Ji-lin Wei Ya ng-qin Chen Department of Physics School of Applied ScienceTaiyuan University of Science and TechnoloEyTaiyuan 030024China State Key laboratory of Precision Spectroscopy and Department of Physics East China NormalUniversityShanghai 200052China

The CS radical was generated by discharging the mixture gas of CS2 and Helium. The Doppler limited spectra of CS were recorded in the region of 12350-12950 cm^-1 using optical heterodyne concentration modulation absorption spectroscopy. Three hundred and twenty-six lines were recorded and assigned to the d^3△-a^3П （8,1） band, in which eighty-three transitions were first observed. A set of improved molecular constants for the d^3△（v=8） and a^3П（v=1） levels were determined by a non-linear least-squares fitting of all the lines to the effective Hamiltonian.

关键词： CS radical Concentration modulation absorption spectroscopy Molecularconstant

Chylous ascites in colorectal surgery:A systematic review

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World Journal of Gastrointestinal Surgery 2021年第6期13卷 585-596页

作者： Zi qin ng Margaret Han Han Nien Beh Simon Keelan Department of General Surgery St John of God Midland HospitalMidland 6056Western AustraliaAustralia Department of General Surgery Joondalup Health CampusJoondalup 6027Western AustraliaAustralia

BACKGROUND Chylous ascites is a rare complication in colorectal surgery with limited *** To systematically review all available evidence to describe the incidence,clinical presentation,risk factors and management *** The systematic review was performed through PubMed,MEDlINE,EMBASE and Cochrane and cross-checked up to November *** data collated included:Demographics,indications(benign vs malignant),site of disease,surgical approach,extent of lymphadenectomy,day to and method of diagnosis of chylous ascites and management *** A total of 28 studies were included in the final analysis(426 cases).Patient age ranged from 31 to 89 *** except one case were performed for *** the 426 cases,195 were right-colonic,121 left-colonic,103 pelvic surgeries and 7 *** majority were diagnosed during the same inpatient stay by recognition of typical drain appearance and increased *** cases were diagnosed during outpatient visits with increased abdominal distention and subsequently underwent *** cases were managed successfully non-operatively(fasting with prol.nged drainage,total parenteral nutrition,somatostatin analogues or a combination of these).Only three cases required surgical intervention after fail.ng conservative management and subsequently resolved *** factors identified include:Right-colonic surgery/tumour location,extent of lymphadenectomy and number of lymph nodes *** Chylous ascites after colorectal surgery is a relatively rare *** the majority of cases resolved without surgical intervention,preventative measures should be undertaken such as meticulous dissection and clipping of lymphatics during lymphadenectomy to prevent morbidity.

关键词： Chylous Chyle Ascites leak Colon Rectum lymphadenectomy

Synthesis, Crystal Structure and luminescence Properties of a Cadmium(Ⅱ) Complex Based on 2-Hydroxy-6-methylisonicotinic Acid

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Chinese Journal of Structural Chemistry 2016年第2期35卷 279-285页

作者： ZHAng Tian TIAN Ai-qin FEng Xun Seik Weng ng TIAN Pan-Hao WAng Yang College of Chemistry and Chemical Engineering Luoyang Normal University Basic Courses Education Department Henan Forestry Vocational College Department of Chemistry University of Malaya Chemistry Department Faculty of ScienceKing Abdulaziz University

A new cadmium（Ⅱ） complex[Cd（Hminic）（IP）]n（1,Hminic = 2-hydroxy-6-methylisonicotinic acid,IP = imidazo[4,5-f]-l,10-phenanthroline）,has been synthesized by the reaction of a Hminic and auxiliary N-containing ligands with Cd（Ⅱ） ion under hydrothermal *** complex was studied by elemental analysis,IR spectroscopy and X-ray *** is formulated as C（20）H（13）CdN5O3,crystallizes in monoclinic system,space group C2/c with α=9.6764（8）,b = 26.767（2）,c = 14.1332（11） A and β= 97.4510（10）°.V= 3629.7（5） A^3,Z = 8,Mr=483.75,Dc = 1.770 g/cm^3,F（000） = 1484 and μ= 1.237 mm^（-1）.The final refinement gave R = 0.0309 and wR = 0.0703 for 4151 reflections with I 〉2σ（I）.In the structure of 1,two Cd（Ⅱ） atoms are joined by a pair of μ2-hydroxyl oxygen atoms giving rise to a dinuclear Cd（Ⅱ） unit which is bridged by Hminic linkers to form a 1D ladder-like polymer *** chelating ligand IP coordinated to the Cd（Ⅱ） atom,and alternately attached to both sides of the ladder-like polymer *** chains are further bound together by strong intermolecular hydrogen bonds and face-to-face π…πinteractions,resulting in the formation of a 3D supramolecular ***,the thermal stability and luminescent properties of this complex and the free ligands have been investigated.

关键词： luminescent property 2-hydroxy-6-methylisonicotinic acid cadmium(Ⅱ) complex

Assembly and Electrochemical Study of Transition Metal Substituted Polyoxometalates SiW_(11)NiO_(39)^(6-) and SiW_(11)MnO_(39)^(6-) on 4-Aminothio-phenol Modified Glassy Carbon Electrode

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Chemical Research in Chinese Universities 2005年第4期21卷 401-405页

作者： lüGui-qin DUJin-yan HUChang-wen InstituteforChemicalPhysics DepartmentofChemistryBeijingInstituteofTechnologyBeijing100081P.R.China InstituteforChemicalPhysics DepartmentofChemistryBeijingInstituteofTechnologyBeijing100081P.R.China／／ChemistryDepartmentAnhuiNormalUniversityWuhu241000P.R.China

Via layer-by-layer assembly, the polyoxometalates of Keggin type, SiW_ 11O_ 39Ni(H_2O) 6-(SiNiW_ 11) and {SiW_ 11O_ 39Mn(H_2O) 6-}(SiMnW_ 11) were first immobilized on a 4-aminothiophenol(4-ATP) modified glassy carbon electrode surface. The electrochemical behavior of these polyoxometalates was investigated. They exhibited some special properties in the films, which are different from those in a homogeneous aqueous solution. Their reaction mechanism in a multilayer film is proposed. The electrocatalytic behavior of these multilayer film electrodes for the reduction of BrO-_3 and NO-_2 were comparatively studied.

关键词： Polyoxometalate layer-by-layer assembly Electrochemical behavior Electrocatalytic reduction BrO_3^- NO_2^-

Chitosan-supported Borohydride Reducing Agent

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Chinese Chemical letters 2001年第12期12卷 1051-1052页

作者： qin, CQ Xiao, l Du, YM Wuhan Univ Dept Environm Sci Wuhan 430072 Peoples R China

A new chitosan-supported borohydride reducing reagent (CBER) was prepared by treatment of KBH4 with the resin of chitosan derivative, which was first synthesized from: the reaction of cross-linked chitosan microsphere... 详细信息

关键词： polymer-support borohydride reducing agent chitosan resin

Dendrite growth characteristics within liquid Fe-Sb alloy

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Science China(Physics,Mechanics & Astronomy) 2009年第5期52卷 720-728页

作者： WAng Weili lüYongJun qin HaiYan WEI BingBo Department of Applied Physics Northwestern Polytechnical UniversityXi’an 710072China

Bulk samples and small droplets of liquid Fe-10%Sb alloys are undercooled up to 429 K (0.24Tl) and 568 K (0.32Tl), respectively, with glass fluxing and free fall techniques. The high undercool.ng does not change the phase constitution, and only the αFe solid solution is found in the rapidly solidified alloy. The experimental results show that when the undercool.ng is below 296 K, the growth velocity of αFe dendrite rises exponentially with the increase of undercool.ng and reaches a maximum value 1.38 m/s. Subsequently, the growth velocity begins to decrease if undercool.ng further increases. The αFe phase grows into coarse dendrites under small undercool.ng conditions, whereas it becomes vermicular dendrites in highly undercooled melts. The solute trapping is closely related to the dendrite growth velocity and cool.ng rate rather than undercool.ng. Although the solute trapping can be remarkably suppressed by the rapid dendrite growth, the segregationless solidification is not observed in the present experiments due to the large solidification temperature range.

关键词： liquid physics dendrite growth solute distribution segregationless solidification

High-Order Discontinuous Galerkin Method for Hovering Rotor Simulations Based on a Rotating Reference Frame

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Transactions of Nanjing University of Aeronautics and Astronautics 2019年第1期36卷 57-70页

作者： ZHAng Tao lü Hongqiang qin Wangl.ng CHEN Zhengwu Department of Aerodynamics Nanjing University of Aeronautics and Astronautics China Aerodynamics Research and Development Center

An implicit higher ? order discontinuous Galerkin(DG) spatial discretization for the compressible Euler equations in a rotating frame of reference is presented and applied to a rotor in hover using hexahedral grids. Instead of auxiliary methods like grid adaptation,higher ? order simulations(fourth ? and fifth ? order accuracy) are *** numerical experiments are carefully designed,conducted and analyzed. The results show generally excellent consistence with references and vigorously demonstrate the higher?order DG method's better performance in loading distribution computations and tip vortex capturing, with much fewer degrees of freedom(DoF). Detailed investigations on the outer boundary conditions for hovering rotors are presented as well. A simple but effective speed smooth procedure is developed specially for the DG method. Further results reveal that the rarely used pressure restriction for outlet speed has a considerable advantage over the extensively adopted vertical speed restriction.

关键词： high-order method(HOM) discontinuous Glaerkin method(DGM) Euler equation hovering rotor simulation tip vortex

Solvothermal Syntheses and Crystal Structures of Two New Nonmetal Borates:C_4H_(10)N_2·B_6O_8(OH)_2 and (NH_3CH_2CH_2NH_3)B_5O_8(OH)

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Chinese Journal of Structural Chemistry 2007年第3期26卷 257-262页

作者： lü Gui-qin YAng Xin lI Min SHI Heng-Zhen School of Science Beijing Institute of Technology Beijing 100081 China Institute of Applied Catalysis Yantai University Yantai 264005 China Department of Chemistry Zhoukou Normal University Zhoukou 46600 1 China

Two new borate compounds, C4H10N2·B6O8（OH）2 and （NH3CH2CH2NH3）B5O8 （OH）2, have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction, IR, elemental analysis and thermal analysis. Compound 1 crystallizes in the monoclinic system, space group P21/c, with a = 8.3318（17）, b = 6.2118（12）, c = 12.479（3） A, β = 108.96（3）°, V = 610.8（2） A^3, Mr = 313.02, Z = 2, 13,.= 1.702 g/cm^,/J = 0.150 mm^-1, F（000） = 320, R = 0.0387 and wR = 0.0924. Its layered structure is linked by infinite covalently coordinated neutral sheets with 3,20-membered window system, which are built up from alternative B6O8（OH）2 subunits donated by two piperzazine nitrogen donors. 2 crystallizes in monoclinic, space group Co, with a = 6.7207（13）, b = 11.481 （2）, c = 12.564（3）A,β = 95.25（3）°, V = 965.4（3） A^3, Mr = 261.18, Z = 4, Dc = 1.797 g/cm^3,/t = 0.164 mm^-1, F（000） = 536, R = 0.0396 and wR = 0.0752. Its oxoborate structure is generated from the sheets of 3,9-membered boron rings bonded diamine molecules through electrostatic and H-bonding interactions to form a two-dimensional layered network.

关键词： solvothermal synthesis crystal structure borate