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Existence and Application of Optimal Markovian Coupling with Respect to Non-Negative Lower Semi-Continuous Functions

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Acta Mathematica Sinica,English Series 2000年第2期16卷 261-270页

作者： Shaoyi Zhangdepartment of Mathematics.Beijing normal {2.,Beijing 100875,P.R.china department of Mathematics,hubei normal {2.,huangshi 435002.P.R.china department of Mathematics Beijing Normal University Beijing 100875 P. R. China department of Mathematics Hubei Normal University Huangshi 435002 P. R. China

In this paper,for two given transition probabilities,the existence of the optimal Markovian coupling with respect to a non-negative lower semi-continuous function is *** an application of this result,the well-known Strassen’s theorem is ***,it is proved that the existence of an order-preserving Markovian coupling of two given jump processes is equivalent to their stochastical comparability.

关键词： Transition probability Markovian coupling Jump process

Thermal Behavior and Non-isothermal Kinetics of the Polyoxometalate of Ciprofloxacin with Tungstophosphoric Acid

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Journal of Wuhan university of Technology(Materials Science) 2007年第2期22卷 240-244页

作者：汪敦佳 hubei Key Laboratory of Bioanalytical Technique Department of Chemistry and Environmental EngineeringHubei Normal University

The polyoxometalate （CPFX-HCl）3H3PW12.40·.8H2. was prepared and characterized by elemental analysis, IR spectra and TG-DTA-DTG. The thermal decomposition mechanism and non-isothermal kinetic parameters of the polyoxometalate were obtained from the analysis of TG-DTG data using the Achar equation, Coats-Redfern equation （CR）, Madhusudanan-Krishnan-Ninan equation （MKN） and Horowitz-Metzger equation （HM）. And their mathematical expressions of the kinetic compensation effect were also calculated.

关键词： non-isothermal kinetics thermal behavior polyoxometalate ciprofloxacin TG-DTA-DTG

Synthesis of A New Reagent 1-(6-Nitro-2.Benzothiazolyl)-3-(4-Nitrophenyl)-Triazene and Study on Its Color Reaction with Cadmium

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Chinese Chemical Letters 1998年第7期9卷 655-656页

作者： Chuan Ming JIN Chu Ru GONG Zhong Qiu HU Ming Hua YANG(department of Chemistry, hubei normal university, {2. 435002. Hebei normal Univ Dept Chem Huangshi 435002 Peoples R China

This paper introduces the synthesis of a new color reagent 1-(6-nitro-2.benzothiazolyl)3-(4-nitrophenyl)-triazene (NBTNPT) and the color reaction of NBTNPT with Cd (II) has been studied. In the presence of Triton X-100, the reagent with Cd (II) forms an orange-yellow complex (1:1) at pH=11.5-12.3, the molar absorptivity is 2.81x10(5)L . mol(-1)m(-1) by dual-wavelength spectrophotometry, Beers law is obeyed in the range of 0-2.0 mu g/L for Cd (II).

关键词： 1-(6-nitro-2.benzothiazolyl)-3-(4-nitrophenyl)-triazene spectrophotometry : Cd (II)

Study on Green Residential Space Design

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IJLAI Transactions on Science and Engineering

IJLAI Transactions on Science and Engineering 2024年第1期2卷 32-37页

作者： Yu Jiang Shenyang normal university No.2.3 Huanghe North Street Shenyang 110034China

With the ever-changing nature,green ecology has become an international trend of ***,the green ecological design of residential space has become the main melody of people’s *** always implement the concept of ecological and environmental protection in the design process,attach importance to the ecological effect of residential space,carry out reasonable budget and use of environmentally friendly decorative materials,reduce the waste of materials,save money and save resources at the same time,and protect the *** the same time,people began to put their hopes on the residential space design,which made the green residential space design began to *** the bold exploration and practice of designers,the design of green residential space will be endowed with more distinctive characteristics and unique *** from the concept of green design,this paper explores the method of green space design through typical analysis.

关键词： Green Residential space Haze

The Colour Reaction of Mercury with 1-(6-Ethoxyl-2.benzothiazolyl)-3-(4-Nitrophenyl)-Triazene and its Application

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Chinese Chemical Letters 1998年第3期9卷 277-279页

作者： Chuan Ming JIN Ming Hua YANG Chu Ru GONG Zhong Qiu HU(department of chemistry,hubei {2. university, huangshi 435002. hubei normal Univ Dept Chem Huangshi 435002 Peoples R China

A new triazene reagent 1-(6-ethoxyl-2.benzothiazolyl)-3-(4-nitrophenyl)-triazene (EtOBThTPT) has been synthesized. The colour reaction of EtOBTNPT with Hg(II) has been studied. At pH = 10.1-10.7, in the presence of Triton X-100, the reagent with Hg(II) forms an orange-yellow complex with high sensitivity. The molar absorptivity is 2.38 X 10(5) ***(-1).cm(-1). Beer's law is obeyed for Hg(II) in the range of 0-7 mu g/2. ml.

关键词： 1-(6-ethoxyl-2.benzothiazolyl)-3-(4-nitrophenyl)-triazene spectrophotometry mercury

Oscillatory and Asymptotic Behaviour of Fourth Order Nonlinear Difference Equations

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Acta Mathematica Sinica,English Series 1997年第1期13卷 105-115页

作者： Yan Jurang (department of Mathematics,Shanxi university,Taiyuan,030006,{2.)Liu Bin (department of Mathematics,hubei normal university,huangshi,435002.{2.) department of Mathematics Shanxi University 030006 Taiyuan China

This paper considers a class of fourth order nonlinear difference equations Δ2.rnΔ2.n）+ f（n,yn）=0,n∈N（n0）,where f（n,y）may be classified as superlinear,sublinear,strongly super- linear and strongly *** super... 详细信息

This paper considers a class of fourth order nonlinear difference equations Δ2./sup>（rnΔ2./sup>yn）+ f（n,yn）=0,n∈N（n0）,where f（n,y）may be classified as superlinear,sublinear,strongly super- linear and strongly *** superlinear and sublinear cases,necessary and sufficient conditions are obtained for the difference equation to admit the existence of nonoscillatory solutions with special asymptotic *** strongly superlinear and strongly sublinear cases,sufficient conditions are given for all solutions to be oscillatory.

关键词： Nonlinear difference equation Oscillation Asymptotic behaviour.

Synthesis and Luminescent Properties of Eu^(3+)-Doped Na_(2.)P_2._(2.)O_(83)

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Chinese Chemical Letters 1998年第10期9卷 911-912页

作者： Shui Jin YANG Ju Tang SUN and Zi Bin QIN(Depaltment of Chemistry, hubei normal university, huangshi, {2.department of Chemistry, Wuhan university, Wuhan 430072. department of Chemistry Hubei Normal University Huangshi 435002 China department of Chemistry Wuhan University Wuhan 430072 China

The Eu3+-doped Na2.P2.2.O83 has been prepared by solid state reaction, and characterized by element analysis, infrared spectroscopy, powder X-ray diffractometry. The emission and excitation spectra were measured. The ... 详细信息

关键词： heteropolytungstate europium crystal structure phosphor

On Some Species Extinction in the Nonautonomous n -Competing Pecies Systems

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Systems Science and Systems Engineering 1999年第3期9卷 267-276页

作者： CHEN Bo\|shan\+1\ \ LIU Yong\|qing\+2.1. department of Mathematics, hubei normal university,{2. 2. department of Automatic Control Engineering South china university of Technology Guangzhou 510641

We generalize and unify some recent results about extinction in nonautonomous n \|species competitive Lotka\|Volterra system. We exhibit new algebraic criteria which guarantee that any solution with strictly initial values that is positive has the property that some of its components vanishes while other approaches a certain solution of their isolate subsystem.

关键词： lotka\|volterra system asymptotic behaviors extinction coexistence

Preparation of Granulated Adsorption Material of Water-quenched Slag/rectorite Composite for Removal of Cu(Ⅱ)Ions from Copper Smelter Wastewater

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Journal of Wuhan university of Technology(Materials Science) 2008年第3期23卷 372-375页

作者：王湖坤 School of Chemistry and Environmental Engineering Hubei Normal University School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan 430070China

The preparation of granulated adsorption material of water-quenched slag/rectorite composite and the treatment of Cu （ Ⅱ ）-containing copper smelter wastewater with the adsorption material were studied. The experimental results showed that under the conditions with the mass ratio of water-quenched slag to rectorite of 1：1, 10% additive of industrial starch （IS）, and 50% water, and a calcination temperature of 400 ℃, the granulated adsorption material prepared had a density of 1.06 kg/m^3, a porosity of 62.2.%, water absorption rate of 58.82., and compressive strength of 2.2. MPa. The efficiency of wastewater treatment was the best, whereas the rate of spallation loss was low. Under the conditions of natural pH, with the addition of the granulated adsorption material of 0.05 g/mL, a reaction time of 40 minutes, and temperature of 2. ℃, the efficiency of the granulated adsorption material for the removal of Cu （ Ⅱ ） ions from the copper smelter wastewater attained 98.2., and the quality indexes of the wastewater after treatment conformed with the first level of integrated wastewater discharge standard （GB8978-1996）. The reclamation of the used granulated adsorption material was carried out by de-sorption of the Cu （ Ⅱ） ions from the surface with 1 mol/L sodium chloride solution. The de-sorption rate was 96.4%, and the adsorption material can be reused many times to treat copper smelter wastewater.

关键词： water-quenched slag rectorite granulation reclamation copper smelter wastewater