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Solidification of Municipal Solid Waste Incineration FlyAsh with Cement and Its Leaching Behaviors of Heavy Metals

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Journal of Wuhan university of Technology(Materials Science) 2003年第1期18卷 55-60,68页

作者：余其俊 southChinauniversityofTechnology

The solidifying effect of cement addition on municipal solid waste incineration fly ash (MSWFA for short,collected from the gas exhaust system of MSW incinerator),the interaction of MSWFA with cement and water and the leaching of heavy metals from cement solidified MSWFA are *** main results show that:(1) when MSWFA is mixed with cement and water,H 2 evolution,the formation and volume expansion of AFt will take place,the volume expansion can be reduced by ground rice husk ash addition;(2) heavy metals do leach from cement solidified MSWFA and at lower pH more leaching will occur;(3. compared with cement-solidified fly ash,the leachate of solidified MSWFA is with higher heavy metal contents;(4) with the increment of cement addition leached heavy metals are decreased;and (5) concentrations of Zn,Mn,Cu and Cd in all the leachates can meet the relevant Standards of Japan,but as the regulations for soil and groundwater protection of Japan are concerned,precautions against the leaching of Pb,Cl - and Cr 6+ and so on are needed.

关键词： municipal solid waste fly ash leaching heavy metals environmental impact

Site 0ccupancy of Alloying Elements and Their Effects on the d0_3.Phase Stability in Fe_3.l

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Journal of Materials Science & Technology 1999年第4期15卷 339-341页

作者： Jun CAF Shaojun LIU Ying LOU and Benkuan usdepartment 0f physics, Beijing N0rmal university, Beijing lO0875, ChinaSuqing d UANInstitute of Applied physics and Computati0nal Mathematics, Beijing 100088, China department of physics Beijing Normal University Beijing 100875 China Institute of Applied physics and Computational Mathematics Beijing 100088 China

The effects of ternary solutes Ti, Co, V, Cr, Ta, W and Mo on the d03.phase 5tability of Fe3.lintermetallics are investigated by tight-binding linear Muffin-tin orbitaI method. The predictedsite preference5 of these elements in Fe3.I are in agreement with the experimental *** calculated Iocal magnetic moment of Fe3.I is identical to the experimentaI. ln addition, itis found that the d03.phase stability of Fe3.I doped with Ti, V, Co and Cr depends on 'energygap- of energy band near Fermi level. while the d03.phase stability of Fe3.I doped with Ta, Wand Mo may be affected by Madelung energy.

关键词： Al Fe Site 0ccupancy of Alloying Elements and Their Effects on the d03.Phase Stability in Fe3.l

X（3.72） and Bound State Problem of d0*0（0 d*0）

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原子核物理评论 2009年第S1期 16-21页

作者： LIU Yan-rui1,LIU Xiang2,3.dENG Wei-zhen2 (1 Institute of High Energy physics,Chinese Academy of Sciences,Beijing 100049,China 2 department of physics,Peking university,Beijing 100871,China 3.Centro de Física Terica,departamento de Física,Universidade de Coimbra,P-3.04-516,Coimbra,Portugal)

We have performed a dynamical calculation of the bound state problem of d0d*0 by considering the pion and sigma meson exchange potential. Our preliminary analysis disfavors the molecular interpretation of X(3.72) if we use the experimental d*dπ coupling constant g=0.59 and a reasonable cutoff around 1 GeV,which is the typical hadronic scale. In contrast,there probably exists a loosely bound S-wave BB* molecular state. Such a molecular state would be rather stable since its dominant decay mode is the radiative decay through B*→Bγ.

关键词： X(3.72) bound state molecule

Interferon-α enhances sensitivity of human osteosarcoma U2OS cells to doxorubicin by p53.dependent apoptosis

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Acta Pharmacologica Sinica 2007年第11期28卷 1835-1841页

作者： Xiang-wei YUAN~2,Xiao-feng ZHU~(3.5),Xiu-fang HUANG~4,Pu-yi SHENG~2,Ai-shan HE~2,Zi-bo YANG~2,Rong dENG~3.Gong-kanFENG~3.Wei-ming LIAO~(2,5)~2 department of Orthopedic Surgery,The First Affiliated Hospital,Sun Yat-sen university,Guangzhou 510080,China ~3.State Key Laboratoryof Oncology in south China,Cancer Center,Sun Yat-sen university,Guangzhou 510060,China ~4 department of Pathology,The AffiliatedJiangmen Hospital,Sun Yat-sen university,Jiangmen 52903.,China department of Orthopedic Surgery The First Affiliated Hospital Sun Yat-sen University Guangzhou 510080 China State Key Laboratory of Oncology in south China Cancer Center Sun Yat-sen University Guangzhou 510060 China department of Pathology The Affiliated Jiangmen Hospital Sun Yat-sen University Jiangmen 529030 China

Aim:To determine whether interferon-α(IFNα) can enhance doxorubicinsensitivity in osteosarcoma cells and its molecular ***:Cellviability was evaluated using 3.(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide *** was studied using Flow cytometry analysis,Hoechst3.258 staining,dNA fragmentation assay,as well as the activation ofcaspase-3.and poly (AdP-ribose) *** expression was detectedby Western *** dependence of p53.was determined using ***:IFNα increased doxorubicin-induced cytotoxicity to a muchgreater degree through apoptosis in human osteosarcoma p53.wild U2OS cells,but not p53.mutant MG63.***α markedly upregulated p53.Bax,Mdm2,andp21,downregulated Bcl-2,and activated caspase-3.and PARP cleavage in re-sponse to doxorubicin in U2OS ***,the siRNA-mediated silencing ofp53.significantly reduced the IFNα/doxorubicin combination-induced cytotoxic-ity and PARP ***:IFNα enhances the sensitivity of humanosteosarcoma U2OS cells to doxorubicin by p53.dependent *** propercombination with IFNα and conventional chemotherapeutic agents may be a ra-tional strategy for improving the treatment of osteosarcoma with functional p53.

关键词： Interferon-α doxorubicin apoptosis p53 osteosarcoma

Algorithm of graph isomorphism with threedimensional dNA graph structures

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Progress in Natural Science:Materials International 2005年第2期15卷 86-89页

作者： LIU Guangwu 1,2*, YIN Zhixiang 1,3. XU Jin1 and dONG Yafei1(1. department of Control Science and Engineering, Hua Zhong university of Science and Technology, Wuhan 43.074, China 2. College of Transportation, Wuhan university of Technology, Wuhan 43.063. China 3. department of Mathematics and physics, Anhui university of Science and Technology, Huainan 23.001, China) department of Control Science and Engineering Hua Zhong University of Science and Technology Wuhan 430074 China. College of Transportation Wuhan University of Technology Wuhan 430063 China. department of Mathematics and physics Anhui University of Science and Technology Huainan 232001 China

An algorithm for solving the graph isomorphism problem with 3.d dNA structures is proposed in this paper. The k-armed branched junction molecules are used to code k-degree vertices. double stranded molecules are used to code edges. Then the molecules are mixed in a tube to be ligated. The result can be detected by gel electrophoresis. The time complexity of the algorithm is O(n2), where n is the number of vertices of the graph.

关键词： dNA computing dNA graph structure graph isomorphism

STUdY OF AXIAL VELOCITY IN GAS CYCLONES BY 2d-PIV,3.-PIV,ANd SIMULATION

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Particuology 2006年第Z1期 204-210页

作者： Zhengliang Liu, Jinyu Jiao and Ying Zheng* department of Chemical Engineering, university of New Brunswick, 15 dineen drive, P.O. Box 4400, Fredericton, NB, Canada E3. 5A3. Canada

The axial velocity distribution in a gas cyclone has been examined with two-dimensional particle image velocimetry (2d-PIV) and three-dimensional particle image velocimetry (3.-PIV) experiments in this study. due to the limitation of 2d-PIV configuration, the contamination generated by the strong tangential velocity in the cyclone can be registered in the axial velocity detected by 2d-PIV. Efficient methods are proposed in this work to remove this contami- nation. The contamination-removed 2d-PIV data agree well with 3.-PIV results. The distributions of the axial velocity are also computed by the Reynolds stress model (RSM) and verified using the PIV experimental results. Reasonable agreements are obtained.

关键词： particle image velocimetry (PIV) numerical simulation axial velocity cyclone separators

Influence of nuclear physics inputs on the Th/U chronometer

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Influence of nuclear physics inputs on the Th/U chronometer

A NEW CLASS OF UNIFORMLY SECONd ORdERACCURATE dIFFRENCE SCHEMES FOR 2d SCALAR CONSERVATION LAWS

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： Zhongming Niu~(1 1)) Baohua Sun~(2,3.2)) Jie Meng~(1,2,4 3.) 1(State Key Laboratory of Nuclear physics and Technology,School of physics,Peking university, Beijing 100871,People's Republic of China) 2(School of physics and Nuclear Energy Engineering,Beihang university,Beijing 100191,People's Republic of China) 3.Justus-Liebig-Universitat Giessen,Heinrich-Buff-Ring 14,d-3.3.2 Giessen,Germany) 4(department of physics,university of stellenbosch,stellenbosch,south africa)

The productions of thorium and uranium are key ingredients in r-process nucleo-cosmochronology. With the combination of improved nuclear and stellar data,we have made a detailed investigation of the r-process abundance pattern in the very metal-poor halo stars based on the classical r-process *** is found that the influence from nuclear mass uncertainties on a Th/U chronometer can approach 2 Gyr. Moreover,the ages of the metal-poor stars HE 1523.0901,CS 3.082-001,and Bd +17°3.48 are determined as 11.8±3.7,13.5±2.9,and 10.9±2.9 Gyr,*** results can serve as an independent check for age estimates of the Universe.

关键词： chronometer r-process nuclear masses metal-poor stars

来源： cnki会议评论

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Journal of Computational Mathematics 1997年第4期15卷 311-318页

作者： Juan Cheng(department of Aerodynamics, Nanjing university of Aeronautics & Astronautics,Nanjing, China)Jia-zun dai (department of Mathematics, physics and Mechanics, Nanjing university of Aeronautics & Astronautics, Nanjing, China) 南京航空航天大学空气动力学系江苏南京南京航空航天大学数学系江苏南京

In this paper, concerned with the Cauchy problem for 2d nonlinear hyperbolic conservation laws,we construct a class of uniformly second order accurate finite difference schemes, which are based on the E-schemes. By applying the conver gence theorem of Coquel-Le Floch [1], the family of approximate solutions defined by the scheme is proven to converge to the unique entropy weak L∞-solution. Furthermore, some numerical experiments on the Cauchy problem for the advection equation and the Riemann problem for the 2d Burgers equation are given and the relatively satisfied result is obtained.

关键词： Math A NEW CLASS OF UNIFORMLY SECONd ORdERACCURATE dIFFRENCE SCHEMES FOR 2d SCALAR CONSERVATION LAWS high Ph

Numerical analysis of high‑speed railway slab tracks using calibrated and validated 3. time‑domain modelling

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Railway Engineering Science 2024年第1期32卷 36-58页

作者： A.F.Esen O.Laghrouche P.K.Woodward d.Medina‑Pineda Q.Corbisez J.Y.Shih d.P.Connolly Institute for High‑Speed Rail and System Integration University of LeedsLeeds LS29JTUK Institute for Infrastructure and Environment Heriot-Watt UniversityEdinburgh EH144ASUK Alstom Transport Saint‑OuenFrance Birmingham Centre for Railway Research and Education University of BirminghamBirmingham B152TTUK

Concrete slabs are widely used in modern railways to increase the inherent resilient quality of the tracks,provide safe and smooth rides,and reduce the maintenance *** this paper,the elastic performance of a novel slab trackform for high-speed railways is investigated using three-dimensional finite element modelling in *** is then compared to the performance of a ballasted ***,slab and ballasted track models are developed to replicate the full-scale testing of track *** the models are calibrated with the experimental results,the novel slab model is developed and compared against the calibrated slab track *** slab and ballasted track models are then extended to create linear dynamic models,considering the track geodynamics,and simulating train passages at various speeds,for which the Ledsgard documented case was used to validate the *** travelling at low and high speeds are analysed to investigate the track deflections and the wave propagation in the soil,considering the issues associated with critical *** train loading methods are discussed,and the most practical approach is retained and ***,correlations are made between the geotechnical parameters of modern high-speed rail and conventional *** is found that considering the same ground condition,the slab track deflections are considerably smaller than those of the ballasted track at high speeds,while they show similar behaviour at low speeds.

关键词： High-speed railways Slab track New ballastless track Ballasted track Critical speeds Finite element modelling Calibration of numerical models