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Field responses of the Asian larch bark beetle, Ips subelongatus, to potential aggregation pheromone components＂ disparity between two populations in northeastern China

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Insect Science 2011年第3期18卷 311-319页

作者： Li-Wen Song qing-He Zhang Yue-Qu Chen tong-tong Zuo Bing-Zhong Ren School of Life Sciences Northeast Normal University Changchun Institute of Forest Protection Jilin Provincial Academy of Forestry Sciences Changchun China Sterling International Inc. Spokane Washington USA

Behavioral responses of the Asian larch bark beetle, lps subelongatus Motsch. to three potential aggregation pheromone components, ipsenol （racemic or [-]- enantiomer）, ipsdienol （racemic or [＋]-enantiomer） and 3-methyl-3-buten- l-ol, were tested using partial or full factorial experimental designs in two provinces （Inner Mongolia and Jilin） of northeastern China. Our field bioassays in Inner Mongolia （Larix principis- rupprechtii Mayr. plantation） clearly showed that ipsenol, either racemic or 97%-（-）- enantiomer, was the only compound that significantly attracted both sexes of 1. subelongatus, while all other compounds （singly or in combinations） were unattractive. There were no two- or three-way synergistic interactions. However, in Jilin Province （L. gmelini [Rupr.] Rupr. Plantation）, all the individual compounds tested were inactive, except a very weak activity by 97%-（-）-ipsenol in 2004 when the beetle population was very high. While a combination of ipsenol and ipsdienol （racemates or enantiomerically pure natural enantiomers） showed a significant attraction for both sexes of I. subelongatus, indicat- ing a two-way synergistic interaction between these two major components, addition of 3-methyl-3-buten-l-ol to these active binary blend（s） did not have any effects on trap catches, suggesting that ipsenol and ipsdienol are the synergistic aggregation pheromone components of I. subelongatus in Jilin Province. It seems that 97%-（-）-ipsenol in Inner Mongolia or the binary blend of 97%-（-）-ipsenol and 97%-（＋）-ipsdienol in Jilin Province are superior to their corresponding racemates, which might be due either to weak inhibitory effects of the antipode enantiomers or to reduced release rates of the active natural enan- tiomer（s） in the racemate（s）. Our current bioassay results suggest that there is a strong geographical variation in aggregation pheromone response of L subelongatus in northeastern China. Future research on the pheromone production and response of 1. s

关键词： aggregation pheromone enantiomers geographical variation Ips subelongatus ipsdienol ipsenol

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Particles accelerated in Hertzian magnetic dipole field of a pulsar

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Chinese Physics C 2021年第11期45卷 136-142页

作者： Zhe chang qing-Hua Zhu Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

Supernova remnants are supposed to be the most possible sources of cosmic ***,alternative sources of cosmic rays,such as an active galactic nucleus,gamma-ray bursts,and pulsars,have not be *** this study,we investigate the possibility of cosmic rays being generated by *** pulsar is simply described as a rotational magnetic dipole,the so-called Hertzian magnetic dipole,an exact solution of the d'Alembert *** the rotational magnetic dipole field,charged particles experience an accelerated electric field with their radiation *** particles,which are initially static out of the light cylinder radius,can be accelerated up to a high energy.

关键词： pulsars cosmic rays acceleration of particles

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Redshift drift in uniformly accelerated reference frame

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Chinese Physics C 2020年第7期44卷 199-210页

作者： Zhe chang qing-Hua Zhu Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

We construct an alternative uniformly accelerated reference frame based on a 3+1 formalism in adapted *** this frame,a time-dependent redshift drift exists between co-moving observers,which differs from that in Rindle... 详细信息

关键词： non-inertial frame uniform acceleration redshift drift Unruh effect

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All-metal electrodes vertical gate-all-around device with self-catalyzed selective grown In As NWs array

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Science China(Information Sciences) 2018年第6期61卷 199-208页

作者： tong LI Wenyuan YANG Yuxiang HAN Xianghai JI Tao YANG qing CHEN Key Laboratory for the Physics and Chemistry of Nanodevices Department of Electronics Peking University Key Laboratory of Semiconductor Materials Science Institute of Semiconductors Chinese Academy of Sciences College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences

With the scaling down of field-effect transistors（FETs） to improve their performance, 3 D vertical surrounding gate structure has drawn great attention. On the other hand, concerning the channel materials,In As nanowires（NWs） have been demonstrated to have great potential in FET due to their high mobility and other excellent electrical properties. Here, we report the first all-metal electrodes vertical gate-allaround（VGAA） FET fabricated using self-catalyzed selective grown In As NWs array grown by metal organic chemical vapor deposition. A typical transistor we fabricated has an on-state current larger than 37 μA/μm when the drain voltage and gate voltage are +0.6 V and +3.0 V, respectively, and an on-off ratio over3 orders of magnitudes. We have measured 34 transistors in total, and most of them have the on-off ratio between 10;and 10;. Annealing is observed to improve the contact property, increase the on-state current,but decrease the on-off ratio. The ways to improve the performance of In As NW VGAA FET are discussed.

关键词： In As nanowire vertical gate-all-around field effect transistor fabrication properties

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Synthesis,spectroscopic and electrochemical property of an unsymmetrical porphyrin and its Zn compound

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Chinese Chemical Letters 2010年第7期21卷 769-773页

作者： chang Fu Zhuang Yu Jing Zhang Ai qing Xia Wen Hui Lian Yun Fang Wang Ping Zhang tong Shun Shi College of Chemistry Jilin UniversityChangchun 130023China

In this article,a new 5-（p-maleicaminophenyl）-10,15,20-triphenylporphyrin（H_2P） and relative zinc compound（ZnP） were synthesized and characterized by means of elemental analyses,UV-vis,IR,MS and 1H NMR ***,we have investigated the fluorescence spectroscopy of these *** oxidation and reduction properties of the compounds were studied by the cyclic voltarnmetry,the oxidation-reduction potentials were obtained.

关键词： Synthesis Porphyrin Cyclic voltammetry Fluorescence

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Control effects of pε and pH on the generation and stability of chlorine dioxide

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Journal of Environmental Sciences 2003年第5期15卷 680-684页

作者： PEI Yuan sheng WU Xiao-qing LUAN Zhao-kun WANG tong Research Center for Eco Environmental Sciences Chinese Academy of SciencesBeijing 100085China.

A new method, without assistance of activity ratio diagram, was applied to construct the p ε \|pH diagrams for chlorine system. The optimal pH range for generation of ClO_(2) by contacting Cl 2(g) directly with ClO^(-) _(2) solution is within pH 1.35-1.94, particularly within pH 1 35-4 00 only if minimizing the formation of Cl_(2) It is unachievable to synthesize pure ClO_(2) from the reaction of Cl_(2) and ClO^(-)_(2). Conversely, ClO_(2) may be present a variation of stability in different waters owing to the changed p ε and pH. ClO_(2) could be relatively stable if not disproportionate into ClO^(-)_(3), coexisting with ClO^(-) _(2) (p ε 17 63 and pH>9 68), Cl_(2) (pH≤0.92) or Cl^(-)(pH 0.92-9.68). When chlorine system has already reached the ultimate equilibria, ClO_(2) is a stable species in strongly acid media. As the acidity decreases, ClO 2 disproportionates into ClO^(-)_(3) and Cl_(2) Aqueous ClO_(2) is unstable within the normal pH range. This work initially, theoretically elucidates the generation and stability of ClO_(2) by way of the p ε pH diagrams.

关键词： chlorine dioxide generation stability pεpH diagram

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Lateral stability region conservativeness estimation and torque distribution for FWIA electric vehicle steering

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Science China(Technological Sciences) 2015年第4期58卷 669-676页

作者： YIN Guo Dong JIN Xian Jian qing Zhi Yong BIAN Chen tong School of Mechanical Engineering Southeast University State Key Laboratory of Automotive Safety and Energy Tsinghua University

Estimation of the lateral stability region and torque distribution on steering is very important to improve stability in lateral handling for all wheel drive electric *** on the built-nonlinear vehicle dynamic model,the lateral stability region of the vehicle related to steering is estimated using Lyapunov *** obtained stable equilibrium points of non-straight driving according to the estimated lateral stability region and also reconstructed the Lyapunov function matrix,which proved that the closed-loop system composed of yaw rate and lateral velocity is satisfied with negative definite *** addition,the designed controller dynamically allocates the drive torque in terms of the vertical load and slip rate of the four *** simulation results show that the estimated lateral stability region and the designed controller are satisfactory in handling stability performance against different roads and vehicle parameters.

关键词： four-wheel independently actuated electric vehicle torque distribution vehicle steering stability region estimation

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Proteomic Analysis of the Hippocampus in Mouse Models of Trigeminal Neuralgia and Inescapable Shock-Induced Depression

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Neuroscience Bulletin 2018年第1期34卷 74-84页

作者： qing-Huan Guo qing-He tong Ning Lu Hong Cao Liu Yang Yu-Qiu Zhang Institutes of Brain Science State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences Fudan University

To investigate the behavioral and biomolecular similarity between neuralgia and depression, a trigeminal neuralgia （TN） mouse model was established by constriction of the infraorbital nerve （CION） to mimic clinical trigeminal neuropathic pain. A mouse learned helplessness （LH） model was developed to investigate inescapable footshock-induced psychiatric disorders like depression in humans. Mass spectrometry was used to assess changes in the biomolecules and signaling pathways in the hip- pocampus from TN or LH mice. TN mice developed not only significant mechanical allodynia but also depressive- like behaviors （mainly behavioral despair） at 2 weeks after CION, similar to LH mice. MS analysis demonstrated common and distinctive protein changes in the hippocampus between groups. Many protein function families （such as cell-to-cell signaling and interaction, and cell assembly and organization,） and signaling pathways （e.g., the Huntington＇s disease pathway） were involved in chronic neuralgia and depression. Together, these results demonstrated that the LH and TN models both develop depressive-like behaviors, and revealed the involvement of manypsychiatric disorder-related biomolecules/pathways in the pathogenesis of TN and LH.

关键词： Trigeminal neuralgia - Learned helplessness Depression Allodynia Mass spectrometry

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Stress relaxation of Si/Si_(1-x)Ge_x/Si structure prepared by ion implantation and subsequent annealing process

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Rare Metals 2011年第3期30卷 270-273页

作者： XU Wenting TU Hailing chang qing XIAO qinghua General Research Institute for Nonferrous Metals Beijing 100088 China GRINM Semiconductor Materials Co. Ltd. Beijing 100088 China

The stress relaxation of 74Ge＋-implanted （100） silicon wafers was investigated. The implantation energy as a function of Si/Si1-xGex/Si struc-ture fluence and two kinds of thermal annealing were reported. The stress and stress relaxation after thermal annealing were calculated on the basis of Raman analysis, and were compared with those obtained from the calculation of virgin Si.

关键词： silicon wafers stress stress relaxation ion implantation annealing

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A Time-dependent Interaction Problem Between an Electromagnetic Field and an Elastic Body

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Acta Mathematicae Applicatae Sinica 2020年第1期36卷 95-118页

作者： chang-kun WEI Jia-qing YANG Bo ZHANG Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Mathematics and Statistics Xi’an Jiaotong UniversityXi’an 710049China

This paper considers the scattering of a time-dependent electromagnetic plane wave by a bounded elastic *** appropriate decomposition of the coupling interface conditions is proposed according to the Voigt’s model between the electromagnetic and elastic *** original unbounded scattering problem is equivalently reduced into an initial-boundary value problem in a bounded domain by introducing an exact transparent boundary condition(TBC)on a sufficiently large *** use of the Lax-Milgram lemma,the abstract inversion theorem of Laplace transform and the energy method,we verify the well-posedness and stability for the reduced ***,a priori estimates are established for the electromagnetic field and elastic displacement by taking special test functions directly in the time domain variational formulation.

关键词： electromagnetic elastic Laplace transform Lax-Milgram lemma energy method well-posedness

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