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Symbolic Computation Study of (2.1)-Dimensional Dispersive Long Wave Equations

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Communications in Theoretical Physics 2006年第8期46卷 199-202页

作者： LU Zhuo-Sheng~(1,2.+) and XIE Fu-Ding~(2.3) ~1School of science, Beijing university of Post and Telecommunications, Beijing 100876,{2. ~2.3} laboratory of Mathematics Mechanization, Academy of Mathematics and System sciences, the Chinese Academy of sciences, Beijing 100080,{2. ~3Department of Computer science, Liaoning Normal university, Dalian 11602.,{2. Department of Otolaryngology University Hospital VU P.O. Box 7057 1007 MB Amsterdam The Netherlands School of science Beijing University of Post and Telecommunications Beijing 100876 China

Seeking exact analytical solutions of nonlinear evolution equations is of fundamental importance in mathematical physics. In this paper, based on a constructive algorithm and symbolic computation, abundant new exact solutions of the (2.1)-dimensional dispersive long wave equations are obtained, among which there are soliton-like solutions, mult-soliton-like solutions and formal periodic solutions, etc. Certain special solutions are considered and some interesting localized structures are revealed.

关键词： dispersive long wave equations symbolic computation exact solution localized structure

Effects of Hexamethylene Bisacetamide on Proliferation and Gene Expression of Human Hepatocarcinoma Cells

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Effects of Hexamethylene Bisacetamide on Proliferation and G...

Rapid Fabrication of CdS Nanocrystals with Well Mesoporous Structure Under Ultrasound Irradiation at Room Temperature

第十三届中国科协年会第6分会场-绿色经济与沿海城市可持续发展战略研讨会

作者： Lanying CHEN 1,Haibo YANG 1,Jie SUN 1 ,Zhaohui XIE 1,Qifu LI 2.1. Henan university of Urban Construction, department of Biology Engineering Pingdingshan 467044, china 2.The {2. laboratory of china education ministry for Cell Biology and Tumor Cell Engineering,School of Life sciences,xiamen university,xiamen 361005, china)

(AIM)To investigate the effects of 5 mmol/L hexamethylene bisacetamide (HMBA) on proliferation and gene expression of human hepatocarcinoma SMMC-772. cells.(METHODS)Effects of HMBA on proliferation of SMMC-772. cells were determined with trypan blue dye exclusion test and HE staining. Effects of HMBA on cell cycle were detected by flow cytometry. Effects of HMBA on cell morphology by Light microscope and electron microscope. Protein levels of c-fos, c-myc, bcl-2. c-erbB-2. p53, rb, p2. and p2. were examined by immunocytochemistry.(RESULTS)The proliferation of SMMC-772. cells were inhibited after 5 mmol/L HMBA treatment, and the inhibitory rate of cellular growth is 52.4 %. HMBA treatment could markedly increase the proportion of cells at G0/G1 phase and decrease the proportion at S phase. light microscope and electron microscope showed that SMMC-772. cells had undergone the restorational alteration in morphology and ultrastructure after HMBA treatment. The expression levels of oncogene c-fos, c-erbB-2. c-myc,bcl-2.and mtp53 proteins were down-regulated while the expression level of tumor suppressor gene rb, p2. and p2. proteins were up-regulated after the treatment with 5 mmol/L HMBA. (CONCLUSIO)NHMBA could effectively inhibit the proliferation of hepatocarcinoma cells, reverse the malignant morphological and ultrastructural characteristics, alter the levels of enzymes and antigens, regulate the expression of differentiation-associated oncogene and tumor suppressorgene, and induce hepatocarcinama cell differentiation.

关键词： biology HMBA human hepatocarcinoma cell differentiation

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Chemical Research in Chinese Universities 2012年第1期28卷 124-128页

作者： YU Chang-lin1, ZHOU Wan-qin2.3, YU Jim-my4, YANG Jian-gao5 and FAN Qi-zhe1 1. School of Metallurgy and Chemical Engineering, 2. School of Information Engineering, Jiangxi university of science and Technology, Ganzhou 341000, P. R.{2. 3. Fujian Provincial key laboratory of Photocatalysis-State key laboratory Breeding Base, Fuzhou university, Fuzhou 350002. P. R.{2. 4. Department of Chemistry, Center of Novel Functional Molecules, and Environmental science Programme, Chinese university of Hong Kong, Shatin, New Territories, Hong Kong, P. R.{2. 5. Engineering Research Center of High-efficiency Development and Application Technology of Tungsten Resources, {12. of education, Jiangxi university of science and Technology, Ganzhou 341000, P. R.{2. Jiangxi Univ Sci & Technol Sch Met & Chem Engn Ganzhou 341000 Peoples R China Jiangxi Univ Sci & Technol Sch Informat Engn Ganzhou 341000 Peoples R China Fuzhou Univ Fujian Prov Key Lab Photocatalysis State Key Lab Breeding Base Fuzhou 350002 Peoples R China Chinese Univ Hong Kong Dept Chem Ctr Novel Funct Mol Shatin Hong Kong Peoples R China Chinese Univ Hong Kong Environm Sci Programme Shatin Hong Kong Peoples R China Jiangxi Univ Sci & Technol Minist Educ Engn Res Ctr High Efficiency Dev & Applicat Techn Ganzhou 341000 Peoples R China

Sphere-like mesoporous CdS nanocrystals with high crystallinity and big surface area were successfully fabricated by ultrasound irradiation at room temperature. The as-synthesized CdS with and without ultrasound irra diation was investigated by the characterizations of X-ray diffraction（XRD）, scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, and Brunauer-Emmett-Teller（BET） surface areas. The photocatalytic acti vity of the CdS was evaluated by photocatalytic degradation of methyl orange under visible light（λ〉42. nm） irradia tion. A possible mechanism for the formation of the CdS nanocrystals with mesoporous structure under ultrasound irradiation was proposed. The results show that both the template role of the triblock copolymer of P12. and the effect of ultrasound-induced aggregation are mainly responsible for the formation of mesoporous structure. On the other hand, the energy generated from acoustic cavitation can effectively accelerate the crystallization process of the amorphous CdS.

关键词： CdS Crystallinity Mesoporous structure Ultrasound-induced aggregation

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三种鲍精子超微结构的比较

海洋学报 2003年第3期25卷 138-142页

作者：柯才焕周时强田越李复雪厦门大学海洋系海洋环境科学教育部重点实验室福建厦门361005

1 引言动物精子超微结构的研究是受精生物学的重要基础,而且由于系统分类的不同其精子的超微结构也伴随着演化,因此,研究和比较分类相似种的精子超微结构,可以作为鉴别种类的辅助依据,同时在动物杂交育种的细胞遗传学分析中也有一定的... 详细信息

1 引言动物精子超微结构的研究是受精生物学的重要基础,而且由于系统分类的不同其精子的超微结构也伴随着演化,因此,研究和比较分类相似种的精子超微结构,可以作为鉴别种类的辅助依据,同时在动物杂交育种的细胞遗传学分析中也有一定的参考价值。

关键词：鲍精子超微结构分类学进化

Inhibitory Kinetics of Betaine Hydrochloride on β-N-Acetyl-D-glucosaminidase from Prawn（Litopenaeus vannamei）

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Inhibitory Kinetics of Betaine Hydrochloride on β-N-Acetyl-...

Functionalization of the C(100)-2.1 Surface by 1,3-Dipolar Cycloadditions:A Theoretical Prediction

第六届全国化学生物学学术会议

作者： Xiao-Lan Xie~(1,2.,Xiao-Qian Wei~2.Qian-Sheng Huang~2.Ye Wang~2.Qing-Xi Chen~(2.) 1 School of Chemistry and Life sciences,Quanzhou Normal university,Quanzhou,362.11,{2. 2.key laboratory of ministry of education for Cell Biology and Tumor Cell Engineering,School of Life sciences,xiamen university,xiamen 361005,{2.

＜正＞Theβ-N-Acetyl-D-glucosaminidase（NAGase,EC3.***.1.52. is one of the chitinases and cooperates with chitinases to catalyze the cleavage of N-acetylglucosamine（NAG） polymers into *** is widely distributed in animal tissues,in plants,and in *** in the crustaceans play important roles in molting and digestion of chitinous foods[1,2..Betaine(Glycine betaine,

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Functionalization of the C(100)-2×1 Surface by 1,3-Dipolar ...

Multipath time delay estimation of underwater acoustic sinusoidal signals

2.01年纳米和表面科学与技术全国会议

作者： Xin Lu, Xin Xu, Nanqin Wang, Qianer Zhang State key laboratory for Physical Chemistry of Solid Surfaces & Department of Chemistry,{2., xiamen 361005, china

Diamond is promising as an electronic-device material. The chemical modification of diamond surfaces might introduce new physical and chemical properties for specific applications. In this report, we present a theoretical prediction of facile 1,3-dipolar cycloaddition of an organic azide (methyl azide) and a diazo compound (diazomethane) onto the diamond (100) surface, a new type of surface reaction that can be used to functionalize diamond surface.

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Chinese Journal of Acoustics 2009年第1期28卷 51-61页

作者： TONG Feng XU Xiaomei FANG Shiliang key laboratory of Underwater Acoustic Communication and Marine Information Technology of the {2. of education Xiamen University Xiamen 361005 Dept. of Radio Engineering Southeast University Nanjing 210096

To overcome the performance limitation of multipath time-delay estimation posed by underwater acoustic sinusoidal signals, an approach incorporating the frequency-domain weighting of the highly oscillatory Nonlinear Least Squares （NLS） cost function with the evolu- tionary optimization was proposed to facilitate the accurate estimation of the multipath timedelay of sinusoidal signals. In the described method, the number of the effective multipath signals, which is included into the parameter model as well as the multipath time-delay and amplitude factor, can be estimated simultaneously thus avoiding the requirement of additional computation. The experimental results performed with numerical simulation and sea-trial data are provided, demonstrating the effectiveness and precision enhancement of the proposed algorithm.

关键词： time Multipath time delay estimation of underwater acoustic sinusoidal signals

Compensation for time-delayed feedback bang-bang control of quasi-integrable Hamiltonian systems

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中国科学:技术科学 2010年第3期 338-338页

作者： LIU ZhongHua1 & ZHU WeiQiu2.1 Department of Civil Engineering,xiamen university,xiamen 361005,china 2.Department of Mechanics,State key laboratory of Fluid Power Transmission and Control,Zhejiang university,Hangzhou 31002.,china

The stochastic averaging method for quasi-integrable Hamiltonian systems with time-delayed feedback bang-bang control is first ***,two time delay compensation methods,namely the method of changing control force amplitude (CFA) and the method of changing control delay time (CDT),are *** conditions applicable to each compensation method are ***,an example is worked out in detail to illustrate the application and effectiveness of the proposed methods and the two compensation methods in combination.

关键词： time-delayed feedback control compensation method bang-bang control quasi-integrable Hamiltonian system

厦门东屿白骨壤林土壤甲烷的产生量、氧化量、传输率与库量

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台湾海峡 2001年第2期20卷 236-244页

作者：叶勇卢昌义林鹏厦门大学海洋环境科学教育部重点实验室厦门大学生物系福建厦门361005

测定了厦门东屿白骨壤 (Avicenniamarina)林土壤的甲烷产生量及其在土壤中的氧化、传输与库量 .土壤甲烷产生量基本上呈内滩 >中滩 >外滩的滩面变化趋势 ,季节变化趋势为秋、冬季低于春、夏季 ,与甲烷氧化量的时空变化模式一致 ,与甲烷... 详细信息

测定了厦门东屿白骨壤 (Avicenniamarina)林土壤的甲烷产生量及其在土壤中的氧化、传输与库量 .土壤甲烷产生量基本上呈内滩 >中滩 >外滩的滩面变化趋势 ,季节变化趋势为秋、冬季低于春、夏季 ,与甲烷氧化量的时空变化模式一致 ,与甲烷库量的时空变化模式也基本相同 .所有季节所有滩面土壤甲烷产生量、氧化量、库量的平均值分别为 9.1 1mg/ (m2.·d)、7.5 8mg/ (m2.·d)、2.7.0 7mg/m2. 在外滩、中滩和内滩土壤甲烷氧化量中 ,好氧甲烷氧化量分别占 99.7%、5 9.1 %和 75 .4% ,高于厌氧甲烷氧化量所占的比例 .土壤甲烷传输率夏季最高而冬季最低 ,所有季节所有滩面的平均值为 1 7.46 % .

关键词：白骨壤林甲烷产生量氧化量传输率库量厦门市土壤湿地