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A Novel Hydrogen-bonded Three-dimensional Network Complex Containing Nickel

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Chemical Research in Chinese Universities 2004年第2期20卷 127-130页

作者： wangli LIJuan WANGEn-bo InstituteofPolyoxometalateChemistry EacultyofChemistryNortheastNormalUniversityChangchun130024P.R.China

A novel complex, (H 3O) 2[Ni(2,6-pydc) 2]·2H 2O was synthesized in an aqueous solution and characterized by means of single-crystal X-ray diffraction, elemental analyses and IR spectra. The X-ray structural analysis revealed that the novel compound forms three-dimensional(3D) networks by both π-π stacking and hydrogen-bonding interactions. The crystal data for the complex are a=13.853(3) nm, b=9.6892(19) nm, c=13.732(3) nm, α=90.00°, β=115.52(3)°, γ=90.00°, Z=3, R 1=0.0786, wR 2=0.1522.

关键词： Stacking Hydrogen-bonding interaction Three-dimensional(3D) network 2,6-Pyridinedicarboxylic acid

PESEDOSPECTRAL-MULTIWAVELET-GALERKIN METHOD FOR ADVECTION-DIFFUSION PROBLEM WITH COMPLEX BOUNDARY

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Chinese Journal of Mechanical Engineering 2004年第1期17卷 16-19页

作者： WuBoying wangli FengGuotai SchoolofEnergyScienceandEngineering HarbinInstituteofTechnologyHarbin150001China

The element of pesedospectral-multiwavelet-Galerkin method, and how tocombine it with penalty method for treating boundary conditions are given. Multiwavelet bases don'toverlap on the given scale, and possess the same compact set in a group of several functions, sothey can be directly used to the numerical discretion on the finite interval. Numerical tests showthat general boundary conditions can be enforced with the penalty method, and thatpesedospectral-multiwavelet-Galerkin method can well track the solutions' development. This alsoproves that pesedospectral-multiwavelet-Galerkin method is effective.

关键词： Multiwavelet's multiresolution analysis Advection-diffusion equations Semigroup method Penalty method Pesedospectral-multiwavelet-Galerkin method

Optical Interference Effects by Metal Cathode in Organic Light-Emitting Diodes

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Chinese Physics Letters 2004年第7期21卷 1370-1373页

作者： WUZhao-Xin wangli-Duo QIUYong KeyLabofOrganicOptoelectronics&MolecularEngineering DepartmentofChemistryTsinghuaUniversityBeijing100084

The dependence of light intensities of organic light-emitting diodes (OLEDs) on the distance of emission zone to metal cathode is investigated numerically. The investigation is based on the half-space optical model that accounts for optical interference effects of metal cathode. We find that light intensities of OLEDs are functions of the distance of emission zone from the metal cathode because of the effect of interference of the metal cathode. This interference leads to an optimal location of emission zone in OLEDs for the maximum of light intensities. Optimal locations of emission zone are numerically shown in various emitting colour OLEDs with different metal cathodes and these results are expected to give insight into the preparation of high efficiency full colour or white light OLEDs.

关键词： Condensed matter: electrical magnetic and optical Electronics and devices Optics quantum optics and lasers

Threshold Decryption Scheme withMultiple Policies

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Wuhan University Journal of Natural Sciences 2005年第1期10卷 243-247页

作者： FEIRu-chun wangli-na SchoolofComputer WuhanUniversityWuhan130072HubeiChina

Based on the difficulty in computing discrete logarilhm and square 1001 onsome special conditions, we propose a basic threshold seeret sharing scheme for multiple secretswith multiple policies, which allows a group of users to share multiple secrttkeys and only onesecret shadow to be ktpt by each user. An efficient threshold decryption scheme with multiplepolicies is designed on the basis of the basic threshold scheme. This decryption scheme allowsmultiple secret keys to he shared among a groupof users, and each user to ketp only one secretshadow. Different public keys can be used to encrypt documents. If and only if the number ofcooperated users who koop the secret shadows is greater than or c-qual to the threshold value of thecorresponding secret key, they can cooperate to decrypt the documents. It is proved that theproposed scheme has very strong security, unless the attackers can solve the discrete logarithmproblem and the square root problem.

关键词： multiple secret keys threshold scheme seeret shadow discrete logarithm square root threshold deayp-tion scheme

Effect of media heights on the performance of biological aerated filter

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Journal of Environmental Sciences 2005年第2期17卷 281-284页

作者： HUYong-you wangli-li SchoolofEnvironmentalScienceandEngineering SouthChinaUniversityofTechnologyGuangzhou510640China DepartmentofEnvironmentalEngineering JinanUniversityGuangzhou510632China

The optimum media height of carbon oxidation and nitrification in a down-flow biological aerated filter was determined, and the distribution of the heterotrophic and nitrifying populations through studying the changes of organic carbon contents and ammonia concentration at different media height was got. The results showed that as a down flow BAF with granular media, the active layer of nitrifiers was deeper than heterotrophs in BAF. And the optimum media height for the removal of SS, COD Cr and NH + 4-N was 40 cm,60 cm and 80 cm respectively. The removal efficiency of SS, COD Cr and NH + 4-N was 79.1%, 63.9% and 96.4% respectively under the influent COD Cr and NH + 4-N of 122.1 mgCOD Cr /L and 14.84 mgNH + 4-N/L, the influent flux of 15.8 L/h, air to liquid ratio of 3∶1.

关键词： biological aerated filter bed material height sewage treatment

A Linear Algorithm for Quantized Event-Triggered Optimization Over Directed Networks

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IEEE/CAA Journal of Automatica Sinica 2022年第6期9卷 1095-1098页

作者： Yang Yuan Liyu Shi wangli He Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of EducationEast China University of Science and TechnologyShanghai 200237China IEEE

Dear Editor,This letter investigates a class of distributed optimization problems with constrained communication.A quantized discrete-time eventtriggered zero-gradient-sum algorithm(QDE-ZGS)is developed to optimize the sum of local functions over weight-balanced directed *** on an encoder-decoder scheme and a zooming-in technique,an event-triggered quantization communication is *** analysis shows that the exact convergence to the global optimal solution is guaranteed when the triggering threshold is bounded and the scaled sequence introduced by the zooming-in technique is quadratic *** the scaled sequence is bounded by an exponential decay function,QDE-ZGS converges linearly to the unique global optimal *** simulations are conducted to demonstrate the theoretical results.

关键词： solution optimal letter

Constraint Cooling of Hot Rolled Coil

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Journal of Iron and Steel Research International 2004年第5期11卷 37-40页

作者： wangli-juan ZHANGChun-li NortheasternUniversity Shenyang110004China ShanghaiBaosteelGroupCo Shanghai201900China

Amorphous ribbons of Fe 74Al 4Sn 2(PSiB) 20 alloy have been synthesized by melt spinning and axial design method. The thermal properties of the amorphous ribbons have been measured by differential scanning calorimeter (DSC). The DSC results show that the Fe 74Al 4Sn 2P 12Si 4B 4 amorphous alloy has relatively wider supercooled liquid region with a temperature interval of 40 38 K (ΔT x=T x-T g). The alloys with a higher phosphorous content in the metalloid element composition triangle of Fe 74Al 4Sn 2(PSiB) 20 have high glass forming ability. The amorphous alloys also show good magnetic properties in which Fe 74Al 4Sn 2P 6 67Si 6 67B 6 67 alloy has a large maximum permeability (μ m), Fe 78Al 4Sn 2P 3Si 3B 10 alloy exhibits a high square ratio (B r/B 10) and Fe 74Al 4Sn 2P 4Si 12B 4 shows a low core loss (P 0 5/1 3T). High glass forming ability and good magnetic properties make Fe 74Al 4Sn 2(PSiB) 20 amorphous alloys valuable in future research.

关键词： iron-based amorphous alloys soft magnetic properties supercooled liquid region melt spinning

Ionization and dissociation of CH_2I_2 and CH_2ICl in femtosecond intense field

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Chinese Science Bulletin 2004年第24期49卷 2585-2589页

作者： LIUZhenhong WANGYanqiu wangli HEGuozhong StateKeyLaboratoryofMolecularReactionDynamics DalianInstituteofChemicalPhysicsChineseAcademyofSciencesDalian116023China

Ionization and dissociation processes of gas molecules, CH2I2 and CH2ICl, in intense femtosecond field (1013—1015 W·cm?2), were investigated by flight time mass spectrometer, irradiated by 60 fs with 800 and 400 nm fem- tosecond laser. In the moderate intense field, CH2I2 and CH2ICl produced concerted elimination products, I2 and ICl molecules, respectively. The multiple charged ions, I2+, gen- erated in Coulomb explosion under intense femtosecond la- ser irradiation, split into three peaks in the flight time mass spectra, due to the initial kinetic energies released in the ex- plosion. The C-I internuclear distances during Coulomb ex- plosion and the kinetic energy released were estimated ac- cording to the flight time differences.

关键词：超速激光技术多重电荷离子库仑 CH2I2 分光计电场

Vapor-phase elemental mercury adsorption by residual carbon separated from fly ash

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Journal of Environmental Sciences 2005年第3期17卷 518-520页

作者： wangli-gang CHENChang-he KruseH.Kolker DepartmentofThermalEngineering UniversityofScienceandTechnologyBeijing100083China TheStateKeyLaboratoryofCleanCombustionofCoal TsinghuaUniversityBeijing100084China DepartmentofChemicalEngineering UniversityofNorthDakotaPOBox9018ND58202-9018USA

The adsorption capacity for vapor-phase elemental mercury(Hg0) of residual carbon separated from fly ash was studied in an attempt for the control of elemental mercury emissions from combustion processes. At low mercury concentrations(<200 μg/m3), unburned carbon had higher adsorption capacity than commercial activated carbon. The adsorbality of unburned carbon was also found to be source dependent. Isotherms of FS carbon(separated from fly ash of a power plant of Shishi in Fujian Province) were similar to those classified as typeⅡ. Isotherms of XJ carbon(separated from fly ash of a power plant of Jingcheng in Shanxi Province) were more like those classified as type Ⅲ. Due to the relatively low production costs, these residual carbons would likely be considerably more cost-effective for the full-scale removal of mercury from combustion flue gases than other technology.

关键词： mercury adsorption residual carbon fly ash activated carbon