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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2007年第12期8卷 912-916页

作者： OGUNlEYE R.f. ADEfEMI S.O. Department of Zoology University of Ado-Ekiti Ado Ekiti Ekiti State 234 Nigeria Department of Chemistry University of Ado-Ekiti Ado Ekiti Ekiti State 234 Nigeria

Insecticidal effects of different doses of the dust and methanol extracts of Garcinia kolae on Callosobruchus maculatus and Sitophilus zeamais were tested. The dust had no significant effect on the two insects, none of them died even at 3 d after treatment. The methanol extracts, however, had rapid lethal effects on both C. maculatus and S. zeamais. The mortality of C. maculatus by the lowest concentration of methanol extracts ranged from 95%-100% whereas in S. zeamais, the mortality ranged from 87.5%-100% and 70%-100% in concentrations of 1 g extract＋3 ml methanol and 1 g extract＋5 ml methanol, respectively, from 24 to 48 h. The least concentration of 1 g extract＋l 5 ml methanol had no significant lethal effect on Sitophilus zeamais.

关键词： Insecticidal effect Garcinia kolae Sitophilus zeamais Callosobruchus maculatus

Two-Dimensional legendre Wavelets for Solving Time-fractional Telegraph Equation

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Advances in Applied Mathematics and Mechanics 2014年第2期6卷 247-260页

作者： M.H.Heydari M.R.Hooshmandasl f.Mohammadi faculty of Mathematics Yazd UniversityYazdIran Department of Mathematics Faculty of SeiencesHormozgan UniversityBandarabbasIran

In this paper,we develop an accurate and efficient legendre wavelets method for numerical solution of the well known time-fractional telegraph *** the proposed method we have employed both of the operational matrices of fractional integration and differentiation to get numerical solution of the time-telegraph *** power of this manageable method is *** the use of legendre wavelet is found to be accurate,simple and fast.

关键词： Telegraph equation legendre wavelets fractional calculus Caputo derivative.

Regenerating deuterium absorption of Ti_(36)Zr_(40)Ni_(20)Pd_4 icosahedral quasicrystal

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Acta Metallurgica Sinica(English letters) 2010年第6期23卷 446-450页

作者： Huogen HUANG Rong lI Tianwei lIU liang CHEN Deli l UO Science and Technology on Surface Physics and Chemistry laboratory Mianyang 621907 China China Academy of Engineering Physics Mianyang 621900 China

Ti/Zr-based icosahedral quasicrystals are a kind of promising hydrogen storage ma- terials, however their absorption regeneration after oxidation-poisoning has been scarcely studied. This work is intended to investigate the deuterium-storage re- generation of a suction-cast Ti36Zr40Ni20Pd4 quasicrystal. It was found that only through hot vacuuming the quasicrystal could be refreshed from air-flow poisoning to absorb deuterium in two cycles. During the first absorption course, a pregnancy period was observed before the real deuterium uptake while deuterium was loaded rapidly during the second one. The deuterium concentration in the alloy can reach 0.011 mol.D2/（g.M）（corresponding to a hydrogen mass percent of 2.2%. D2 and M denote molecular deuterium and the metallic alloy）. But the loaded deuterium was very difficult to release completely even by eight-stage desorption at different tem- peratures. After the second desorption, the quasicrystal phase remained in a small volume, as though the desorption temperature was beyond the crystallization temperature of the quasicrystal. This probably is attributed to the solution function of residual deuterium in the alloy.

关键词： Regenerate deuterium absorption Ti36Zr40Ni20Pd4 Icosahedral quasicrystal

Design of a reconfigurable transcendental function generator

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The Journal of China Universities of Posts and Telecommunications 2017年第1期24卷 96-102页

作者： Jiang lin lü Qing Xie Xiaoyan Shan Rui Deng Junyong School of Electronic Engineering Xi'an University of Posts and Telecommunications Xi'an 710121 China School of Computer Science and Technology Xi'an University of Posts and Telecommunications Xi'an 710 121 China

In order to take into account the computing efficiency and flexibility of calculating transcendental functions, this paper proposes one kind of reconfigurable transcendental function generator. The generator is of a reconfigurable array structure composed of 30 processing elements （PEs）. The coordinate rotational digital computer （CORDIC） algorithm is implemented on this structure. Different functions, such as sine, cosine, inverse tangent, logarithmic, etc., can be calculated based on the structure by reconfiguring the functions of PEs. The functional simulation and field programmable gate array （fPGA） verification show that the proposed method obtains great flexibility with acceptable performance.

关键词： reconfigurable computing reconfigurable transcendental function generator CORDIC array processor

JACOBI POlYNOMIAlS USED TO INVERT THE lAPlACE TRANSfORM

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Analysis in Theory and Applications 2004年第1期20卷 28-34页

作者： A.Al-Shuaibi f.Al-Rawjih King fahd University of Petroleum and Minerals Dhahran Saudi ArabiaCollege For Girls Dammam Saudi Arabia

Given the laplace transform f(s) of a function f(t), we develop a new algorithm to find on approximation to f(t) by the use of the dassical Jacobi polynomials. The main contribution of our work is the development of a new and very effective method to determine the coefficients in the finite series ex-pansion that approximation f(t) in terms of Jacobi polynomials. Some numerical examples are illustrated.

关键词： Inverse laplace transform Jacobi polynomials Integral transforms Ill-posed problems

China in action: national strategies to combat against emerging infectious diseases

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Science China(life Sciences) 2017年第12期60卷 1383-1385页

作者： Min Han Jinhui Gu George f.Gao William J.liu CAS Key laboratory of Pathogenic Microbiology and Immunology Institute of Microbiology Chinese Academy of Sciences Division of Major Special Projects Department of Health Science Technology and Education at China's National Health and Family Planning Commission National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention

During the 2013–2016 Ebola epidemic in West Africa,there was a special team as part of an international effort working in *** was the Chinese aid team deployed to West Africa as a multidisciplinary group composed of ... 详细信息

关键词： China in action national strategies combat against emerging infectious diseases

THERMODYNAMICS STUDY ON THE DECOMPOSITION Of CHROMITE WITH KOH

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Acta Metallurgica Sinica(English letters) 2007年第3期20卷 187-192页

作者： Z. Sun S.l. Zheng Y. Zhang Institute of Process Engineering Chinese Academy of Sciences Beijing 100080 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

Institute of Process Engineering, Chinese Academy of Sciences, China, has proposed a method for oxidative leaching of chromite with potassium hydroxide. Understanding the mechanism of chromite decomposition, especially in the potassium hydroxide fusion, is important for the optimization of the operating parameters of the oxidative leaching process. A traditional thermodynamic method is proposed and the thermal decomposition and the reaction decomposition during the oxidative leaching of chromite with KOH and oxygen is discussed, which suggests that chromite is mainly destroyed by reactions with KOH and oxygen. Meanwhile, equilibrium of the main reactions of the above process was calculated at different temperatures and oxygen partial pressures. The stable zones of productions, namely, K2CrO4 and fe2O3, increase with the decrease of temperature, which indicates that higher temperature is not beneficial to thermodynamic reactions. In addition, a comparison of the general alkali methods is carried out, and it is concluded that the KOH leaching process is thermodynamically superior to the conventional chromate production process.

关键词： chromite KOH thermodynamics decomposition

A new big data approach based on geoecological information-modeling system

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Big Earth Data 2017年第1期1卷 47-63页

作者： Costas A.Varotsos Vladimir f.Krapivin Department of Environmental Physics and Meteorology University of athensathensgreece Kotelnikov institute of radioengineering and Electronics russian academy of SciencesMoscowrussia

In this paper,the geoecological information-modeling system(GIMS)is described as possible improvement of the Big Data *** main GIMS function is the use of algorithms and models that capture the fundamental processes controlling the evolution of the climate-nature-society(CNSS)*** GIMS structure includes 24 blocks that realize a series of models and algorithms for global big data processing and *** CNSS global model is the basic block of the *** operational tools of GIMS are demonstrated by examining several scenarios associated with the reconstruction of forest *** is shown that significant impacts on forests can lead to global climate variations on a large scale.

关键词： Global climate variability big data approach geo-ecoinformatics sustainable development

Distribution characteristics of polychlorinated biphenyls (PCBs) in coastal areas of Okinawa Island,Japan

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Chinese Journal of Oceanology and limnology 2007年第3期25卷 247-253页

作者： M.A.SHEIKH f.NAKAMA T.OOMORI Marine and Environmental Science Graduate School of Engineering and Science University of the Ryukyus 1 Senbaru Nishihara-Town Okinawa 903-0213 Japan Detachment 3 Air Force Institute for Operational Health (AFIOH) Armstrong Laboratory Department of Chemistry Biology and Marine Science Faculty of Science University of the Ryukyus 1 Senbaru Nishihara-Town Okinawa 903-0213

Surface sediment and seawater samples were collected from coastal areas around Okinawa Island from September 2001 to May 2002. The samples were analyzed for total polychlorinated biphenyl (PCB) levels and homolog composition. The results show that total PCB levels ranged from 0.32 to 128.7 ng/g (dry wt.) in sediment and 1.59 to 2.48 ng/l in seawater. The levels exceed the Environmental Quality Standard (EQS) for water pollution of Japan. The distribution of PCB homolog showed different patterns in the sediments and seawaters. Penta-chlorobiphenyls (CBs) comprised the main congener group in seawater, while hexa-CBs were more abundant homologs in the sediments. The heavily contaminated sites featured higher CBs, including penta-CBs, hexa-CBs, and hepta-CBs, than those in less contaminated sites where tri-CBs dominated. This study provides current distribution and geochemical behavior of PCBs in the coastal areas around Okinawa Island.

关键词： PCBs Okinawa Island homolog coastal pollution

KINETICS Of lIPID PEROXIDATION IN RAT lIVER MICROSOMES

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Chinese Science Bulletin 1992年第4期37卷 325-328页

作者：郑荣梁 T. f. SlATER Department of Biology Lanzhou University Lanzhou 730000 PRC Department of Biochemistry Brunel University London UK

Ⅰ. INTRODUCTION Since many severe diseases are caused by lipid peroxidation, a large number of investigations on the mechanisms underlying this oxidative deterioration have been carried out, and the lipid peroxidation becomes an usual indicatrix in a variety of pathological studies. The main processes of lipid peroxidation occurring in chemical system have been proposed.

关键词： microsome lipid peroxidation