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A study on simultaneous removal of NO and SO2 by using sodium persulfate aqueous scrubbing

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Chinese Journal of Chemical Engineering 2018年第7期26卷 1536-1544页

作者： xue kang Xiaoxun Ma Jian'an Yin Xuchun Gao School of Chemical Engineering Northwest UniversityXi'an 710069China Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy Xi'an 710069China Shaanxi Research Center of Engineering Technology for Clean Coal Conversion Xi'an 710069China International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources.Xi'an 710069 China Xi'an Shaangu Power Co. Ltd.Xi'an 710075China

Nitric oxide （NO） removal and sulfur dioxide （SO2） removal by sodium persulfate （Na2S2O8） were studied in a Bubble Column Reactor. The proposed reaction pathways of NO and SO2 removal are discussed. The effects of temperatures （35-90℃）, Na25208 （0.05-0.5 mol·L-1）, FeSO4 （0.5-5.0 m mol·L-1） and H2O2 （0.25 mol·L-1） on NO and SO2 removal were investigated. The results indicated that increased persulfate concentration led to increase in NO removal at various temperatures. SO2 was almost completely removed in the temperature range of 55-85 ℃. Fe2 ＋ accelerated persulfate activation and enhanced NO removal efficiency. At 0.2 mol· L- 1 Na2S2O8 and 0.5-1.0 mmol· L-1Fe2 ＋, NO removal of 93.5%-99% was obtained at 75-90 ℃, SO2 removal was higher than 99% at all temperatures. The addition of 0.25 mol. L i H202 into 0.2 mol·L-1· Na2S2O8 solution promoted NO removal efficiency apparently until utterly decomposition of H2O2, the SO2 removal was as high as 98.4% separately at 35 ℃ and 80 ℃.

关键词： Simultaneous removal of NO and SO2 Sodium persulfate Ferrous sulfate Hydrogen peroxide Active radicals

Earthquake-induced collapse mechanism of two types of dangerous rock masses

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Earthquake Engineering and Engineering Vibration 2016年第2期15卷 379-386页

作者： Wang Wei Yuan Wei Wang Qizhi xue kang School of Civil Engineering Shijiazhuang Railway Institute Geotechnical Institute Civil Engineering Department Tianjin University

As the economy of China develops, an increasing number of key traffic projects have been undertaken in the west of China, where there are high, steep rock slopes. The collapse of dangerous rock masses, especially following a strong earthquake, is one of common geological disasters known in rock slope engineering. Therefore, it is important to study the collapse mechanism of dangerous rock masses induced by an earthquake and the analysis approach of its stability. This study provides a simple and convenient method to determine the collapse mechanisms of two types of dangerous rock masses （i.e. cantilever and upright） associated with the definition and calculation of the safety factor, which is based on the flexure theory of a constant-section beam by combining with the maximum tensile-stress criterion to depict the process of crack propagation caused by seismic waves. The calculation results show that there are critical crack depths in each form of the dangerous rock masses. Once the accumulated depth of the crack growth during an earthquake exceeds the critical depth, the collapse will occur. It is also demonstrated that the crack extension amount of each step is not a constant value, and is closely associated with the current accumulated crack depth. The greater the cumulative crack depth, the more easily the crack propagates. Finally, the validity and applicability of the proposed method are verified through two actual engineering examples.

关键词： dangerous rock mass earthquake-induced collapse cantilever beam theory safety factor high-steep rock slope

Quantum Group Construction of Non-standard R-matrix for Yang-Baxter Equation

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Chinese Physics Letters 1991年第10期8卷 495-498页

作者： GE Molin SUN Changpi xue kang Theoretical Physics Division Nanlrai Institute of MathematicsTianjin 300071 Department of Physics Northeast Normal UniversityChangchun 130024

By taking the concept of weight conservation into account,new solations of Yang-Baxter equation without spectral parameter are obtained through the non-standard A-matrix on the feensorial space V^(1/2) (j≠1/2)in terms of the irreducible representation of the quantum universal enveloping algebra SLq(2).The non-standard R-matrix J?1/21 is obtained in an explicit form for j=1.

关键词： matrix algebra irreducible

Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

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Frontiers of Chemical Science and Engineering 2022年第6期16卷 819-837页

作者： kang xue Jinwen Cao Lun Pan Xiangwen Zhang Ji-Jun Zou Key Laboratory for Advanced Fuel and Propellant of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborative Innovative Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China

With the increasing demand for high-performance and safe fuels in aerospace propulsion systems,gelled fliels have attracted increasing *** of their unique structure,gelled fuels exhibit the advantages of both solid and liquid fliels,such as high energy density,controllable thrust and storage *** review provides an overview on design,preparation and performance characterization of gelled *** composition,preparation process and gelation mechanism of gelled high-energy-density fuels are *** these aspects,the rheology and flow behavior of gelled fuels is summarized in terms of the shear thinning property,dynamic viscoelasticity and ***,the progress of atomization of gelled fuels is reviewed with a focus on the effect of atomizing *** addition,the experiments and theoretical models of single droplet combustion and combustor combustion are ***,research directions for the development and application of gelled fuels are suggested.

关键词： gelled fuels high-energy-density fuels rheological properties atomization combustion

Investigation of Hydroelastic Ship Responses of An ULOC in Head Seas

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China Ocean Engineering 2016年第5期30卷 687-702页

作者： WANG xue-liang Pandeli TEMAREL HU Jia-jun GU xue-kang Marine Structure Department China Ship Scientific Research Center Wuxi 214082 China Fluid-Structure Interactions Group Faculty of Engineering and the Environment University of Southampton Southampton U

Investigation of hydroelastic ship responses has been brought to the attention of the scientific and engineering world for several decades. There are two kinds of high-frequency vibrations in general ship responses to a large ocean-going ship in its shipping line, so-called springing and whipping, which are important for the determination of design wave load and fatigue damage as well. Because of the huge scale of an ultra large ore cartier （ULOC）, it will suffer seldom slamming events in the ocean. The resonance vibration with high frequency is springing, which is caused by continuous wave excitation. In this paper, the wave-induced vibrations of the ULOC are addressed by experimental and numerical methods according to 2D and 3D hydroelasticity theories and an elastic model under full-load and ballast conditions. The influence of loading conditions on high-frequency vibration is studied both by numerical and experimental results. Wave-induced vibrations are higher under ballast condition including the wave frequency part, the multiple frequencies part, the 2-node and the 3-node vertical bending parts of the hydroelastic responses. The predicted results from the 2D method have less accuracy than the 3D method especially under ballast condition because of the slender-body assumption in the former method. The applicability of the 2D method and the further development of nonlinear effects to 3D method in the prediction of hydroelastic responses of the ULOC are discussed.

关键词： hydroelastic ship response experiment wave-induced vibration ultra large ore carrier

Transfer Matrix and Yangian Related to Chaplygin-Goryachev Top

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Chinese Physics Letters 1996年第9期13卷 641-643页

作者： xue kang WANG Zhou-fei GE Mo-lin ZHANG Hong-biao Institute of Theoretical Physics Northeast Normal UniversityChangchun 130024 Theoretical Physics Division Nankai Institute of MathematicsTianjin 300071

A new representation of Yangian for sl(2)is obtained from e(3)*** the given rational solution of the quantum Yang-Baxter equation the algebraic relations of the transfer matrix is discussed and a new transfer matrix r... 详细信息

关键词： algebra Yangian algebraic

On the properties of the Rational Function Spectrum describing waves near islands and reefs in South China Sea

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Journal of Hydrodynamics 2021年第5期33卷 879-888页

作者： Yi-geng Wang Zhi Zong Li Zhou Xiao-long Liu xue-kang Gu School of Naval Architecture Dalian University of TechnologyDalian 116024China China Ship Scientific Research Center Wuxi 214082China

On-site measurements show that water waves near islands and reefs in South China Sea exhibit different properties of wave energy distributions with regard to wave frequencies,among which the most prominent factor is the interplay of swells arising from the West Pacific Ocean and the local wind *** also show that the breaking waves continuously appear,containing more energy in high frequency components,and the nonlinear characteristics of the waves are important in adjusting the energy *** properties may explain the large discrepancies between the well-accepted wave spectra(for example the P-M spectrum,Neumann spectrum,ITTC spectrum etc.)and the measured wave spectra near islands and reefs in South China ***,a new Rational Function Spectrum is proposed in this paper to describe waves near islands and reefs which turns out to show satisfactory *** well captures wave power distributions in the form of single and double peaks,at low-and high-frequency regions,as well as nonlinear scale power *** on the investigation of the measured data near an island in South China Sea,the relation between the parameters used in the Rational Function Spectrum and the statistical parameters of water waves(significant wave height and wave period)is *** is noted that the wave properties at low-and high-frequencies are controlled by the local wind velocities at the wave growth stage,but remain constant at the wave decay *** parameter peak frequency is only dependent on the wave period corresponding to the maximum wave *** parameter spectral peak is determined from the wave height and the wave *** relations help to clarify the physical meanings of the parameters used in the Rational Function Spectrum,and thus provide an alternative spectral form to describe random waves near islands and reefs.

关键词： Rational Function Spectrum double peak near islands and reefs swell nonlinear

Visual function alterations in cavernous hemangioma of the orbital apex after surgery

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International Journal of Ophthalmology(English edition) 2016年第10期9卷 1528-1531页

作者： kang xue Min Wang Jiang Qian Department of Ophthalmology EyeEarNose and Throat Hospital of Fudan University

Dear Editor,I am *** xue,from the Department of Ophthalmology at the Eye,Ear,Nose and Throat Hospital of Fudan University in Shanghai,China.I am writing to present three case reports of the removal of visual function alterations in cavernous hemangioma of the orbital apex after *** hemangioma is a relatively common primary benign orbital tumor in adults.

关键词： Visual function alterations in cavernous hemangioma of the orbital apex after surgery VEP

Fault Tree Analysis:Investigation of Epidemic Hemorrhagic Fever Infection Acquired in Animal Laboratories in China

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Biomedical and Environmental Sciences 2016年第9期29卷 690-695页

作者： LIU Xiao Yu xue kang Ning RONG Rong ZHAO Chi Hong Laboratory management department Chinese Center for Disease Control and Prevention

Epidemic hemorrhagic fever has been an ongoing threat to laboratory personnel involved in animal care and use. Laboratory transmissions and severe infections occurred over the past twenty years, even though the standards and regulations for laboratory biosafety have been issued, upgraded, and implemented in China. Therefore, there is an urgent need to identify risk factors and to seek effective preventive measures that can curb the incidences of epidemic hemorrhagic fever among laboratory personnel. In the present study, we reviewed literature that relevant to animals laboratory-acquired hemorrhagic fever infections reported from 1995 to 2015, and analyzed these incidences using fault tree analysis （FTA）.

关键词： Fault Tree Analysis