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Distributed Field Rotator Composed of Isolated Components

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Chinese Physics Letters 2014年第4期31卷 50-53页

作者： LIU Guo-Chang LI Chao shao jin-jin FANG Guang-You Key Laboratory of Electromagnetic Radiation and Sensing Technology Chinese Academy of Sciences Beijing 100190

Transformation optics offers remarkable control over electromagnetic fields and has recently opened an exciting gateway to design ＇field rotator devices＇. We propose a distributed field rotator with open windows based on composite transformation optics, which consists of a central circular region and several isolated components. The number, position and size of the components can be controlled freely by the design purpose. Full-wave simulations are performed to demonstrate its function, which is equivalent to a classic field rotator. However, such a distributed rotator makes it much easier to access and make use of the rotated field in the central region, compared to the closed classic field rotator, especially in the case of 3D situations.

关键词： Components Distributed components

Mesenteric artery remodeling and effects of imidapril and irbesartan on it in spontaneously hypertensive rats

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World Journal of Gastroenterology 2004年第10期10卷 1471-1475页

作者： Zhong-ShengZhu jin-MingWang shao-LiangChen DepartmentofCardiovascularMedicine People'sHospitalofWuhanUniversityWuhan430060HubeiProvinceChina DepartmentofCardiovascularMedicineThirdAffiliatedHospitalofNanjingMedicalUniversityNanjing210006JiangsuProvinceChina

AIM: To investigate the remodeling of mesenteric artery and the expression of TGF-β1, c-Jun in mesenteric artery and effects of imidapril and irbesartan on the remodeling in spontaneously hypertensive rats (SHR).METHODS: Thirty SHR (male/female, 21/9), aged 13 wk,were randomly divided into 3 groups (7 male rats and 3 female rats each group): SHR group, imidapril group (imidapril 3 mg/kg.d was given in drinking water for 14 wk), and irbesartan group (irbesartan 50 mg/kg.d was given in drinking water foe 14 wk). Ten homogenous Wistar Kyoto rats, 5 males and 5 females, weighing 206±49 g, were selected as normal control group (WKY group). Systolic pressure was measured on d 1, 2, 4, 6, 8, 10, 12 and 14 during the experiment and the rats were killed at the end of the experiment. Angiotensin II (Ang II) level in plasma and mesenteric arteries was measured by *** morphology of the secondary branches of mesenteric artery were examined by light microscopy and electron microscopy. Reverse transcription polymerase chain reaction (RT-PCR) was used to detect the expression of transforming growth factor TGF-β1 and c-Jun ***: Compared with imidapril group and irbesartan group, the blood pressure was remarkably increased in SHR group. Ang II level in plasma and mesenteric arteries in SHR group was the same or lower than that in WKY group, and was higher in irbesartan group and lower in imidapril group. The remodeling of mesenteric arteries in SHR group was mostly obvious among the 4 groups. The ratio of TGF-β1 absorbed light value to GAPDH absorbed light value in the SHR group was 0.887±0.019, which was significantly higher than that in WKY group, imidapril group,and irbesartan group with the ratios of 0.780±0.018,0.803±0.005, and 0.847±0.017, respectively (P<0.01).Ang II level in plasma and mesenteric arteries in imidapril group was significantly lower than that in irbesartan group (P<0.05). The c-Jun absorbed light value/GAPDH absorbed light value of mes

关键词：自发性高血压肠系膜动脉血管重塑咪达普利厄贝沙坦药理作用

Optimization of formation for multi-agent systems based on LQR

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Frontiers of Information Technology & Electronic Engineering 2016年第2期17卷 96-109页

作者： Chang-bin YU Yin-qiu WANG jin-liang shao School of Automation Hangzhou Dianzi University Hangzhou 310018 China Research School of Engineering The Australian National University Canberra ACT 0200 Australia School of Mathematics Science University of Electronic Science and Technology of China Chengdu 611731 China

In this paper,three optimal linear formation control algorithms are proposed for first-order linear multiagent systems from a linear quadratic regulator(LQR) perspective with cost functions consisting of both interaction energy cost and individual energy cost,because both the collective ob ject(such as formation or consensus) and the individual goal of each agent are very important for the overall ***,we propose the optimal formation algorithm for first-order multi-agent systems without initial physical *** optimal control parameter matrix of the algorithm is the solution to an algebraic Riccati equation(ARE).It is shown that the matrix is the sum of a Laplacian matrix and a positive definite diagonal ***,for physically interconnected multi-agent systems,the optimal formation algorithm is presented,and the corresponding parameter matrix is given from the solution to a group of quadratic equations with one ***,if the communication topology between agents is fixed,the local feedback gain is obtained from the solution to a quadratic equation with one *** equation is derived from the derivative of the cost function with respect to the local feedback *** examples are provided to validate the effectiveness of the proposed approaches and to illustrate the geometrical performances of multi-agent systems.

关键词： Linear quadratic regulator (LQR) Formation control Algebraic Riccati equation (ARE) Optimalcontrol Multi-agent systems

Inhibition Mechanism of Novel Pyrazolo[1,5-a]pyrazin-4(5H)-one Derivatives Against Proliferation of A549 and H322 Cancer Cells

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Chinese Medical Sciences Journal 2015年第4期30卷 260-265页

作者： jin-hui shao Gui-hua Feng Department of Medical Morphology School of MedicineHubei University of Art and Science Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology School of Life Science Shandong University

Objective To explore the inhibition mechanism and safety of pyrazolo[1,5-a]pyrazin-4(5H)-one derivatives against proliferation of human lung cancer A549 cells, H322 cells, and human umbilical vein endothelial cell(HUVEC). Methods Cells were treated with 40 μmol/L of the ppo3 a, ppo3 b, ppo3 i, and 0.1% DMSO(control) for 48 hours, respectively. Apoptosis was determined by Hoechst 33258 staining assay in H322 and A549 cells. Cell cycle distribution was determined by flow cytometry analysis in A549 cell. LC3-II, p53, and heat shock protein(HSP) 70 protein levels were detected by Western blotting in A549 cells treated with ppo3 b for 48 hours. The morphology and viability of HUVEC were observed by inverted microscope and sulforhodamine B(SRB) assay. Results Ppo3 a, ppo3 b, and ppo3 i significantly induced apoptosis in H322 and A549 cells. A strong G1-phase arrest was concomitant with the growth inhibitory effect on A549 cells. Ppo3 b effectively elevated the p53 protein level, but significantly reduced the HSP70 protein level. There were no significantly inhibitory effect on the morphology and viability of HUVEC when treated with ppo3 a, ppo3 b, and ppo3 i. Conclusions ppo3 a, ppo3 b, and ppo3 i could inhibit H322 proliferation through apoptosis and inhibit A549 through apoptosis and G1-phase arrest. The protein p53 and HSP70 might involve in the inhibition effects. These derivatives might be a clue to find effective and safe drug for lung cancers.

关键词： pyrazole apoptosis lung cancer cell p5 3 human umbilical vein endothelial cell

Entanglement of Non-symmetric Two Atomic Qubits Induced by a Coherent State Field

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Communications in Theoretical Physics 2006年第1期45卷 67-70页

作者： LI Jun-Gang ZOU Jian CAI jin-Fang shao Bin Department of Physics School of Science Beijing Institute of Technology Beijing 100081 China

The entanglement of two atomic qubits, which are coupled to a coherent state field with different couplings, is studied. The dynamical evolution of the concurrence, which measures the degree of the entanglement between the two qubits, is plotted versus the scaled time gt. It is found that the two qubits can be entangled by the coherent state field even when they are initially prepared in the most mixed state, and for very weak field, the most mixed state can be; more easily entangled than some pure states. It is also found that the entanglement between the qubits sensitively depends on the relative difference of the atomic couplings and the mean photon number of the field.

关键词： entanglement mixed state coherent state field

Application of the Bayes’ theory to the failure rate evaluation of electrical apparatus

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第3期8卷 501-505页

作者： jin shao-hua LU Jian-guo WAN Yan-ping SUN Shu-guang Department of Mathematics Hebei University of Technology Tianjin 300130 China

The Weibull distribution has been widely used in reliability fields. A mixed Weibull distribution represents a popu- lation that consists of several Weibull subpopulations. In this paper, a new approach which combines the least-squares method with Bayes’ theorem, takes advantage of the parameter estimation for single Weibull distribution is developed to estimate the pa- rameters of each subpopulation. The estimates given by this paper also satisfy the maximum likelihood equation. The estimates of the failure rate of the mixed Weibull population are given. An actual test data is computed by using the proposed method. The Kolmogorov-Smirnov goodness-of-fit test turns out that the proposed method yields more accurate result.

关键词： Bayesian estimation Failure rate Least-squares method Maximum likelihood principle Mixed-Weibull distribution

Quantitative Determination of Adrenaline Hydrochloride Injection and Noradrenaline Bitartrate Injection by a New HPLC Method via Substitute for Reference Substance

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Chemical Research in Chinese Universities 2009年第4期25卷 433-438页

作者： XIE Yuan-chao HUANG Hai-wei ZHANG Qi-ming jin shao-hong Department of Pharmaceutical Analysis China Pharmaceutical University Nanjing 210009 P. R. China Shandong Provincial Institute for Drug Control Jinan 250101 P. R. China National Institute for Control of Pharmaceutical and Biological Products Beijing 100050 P. R. China

An HPLC method for quantitative determination of adrenaline hydrochloride injection and noradrenaline bitartrate injection was established and validated with a substitute for the reference *** hydrochloride was selected as the substitute for the reference substance of adrenaline and noradrenaline *** correction factor of phenylephrine hydrochloride with respect to the reference substance of adrenaline and noradrenaline bitartrate was determined under defined *** hydrochloride injection and noradrenaline bitartrate injection were quantified by assaying phenylephrine hydrochloride and a correct *** results indicate that the HPLC method with the substitute for reference substance was reliable and feasible for quantitative determination of drugs.

关键词： Substitute for reference substance Correction factor Adrenaline Noradrenaline bitartrate Phenylephrine hydrochloride HPLC

Modeling the biomass of energy crops：Descriptions, strengths and prospective

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Journal of Integrative Agriculture 2017年第6期16卷 1197-1210页

作者： JIANG Rui WANG Tong-tong shao jin GUO Sheng ZHU Wei YU Ya-jun CHEN shao-lin HATANO Ryusuke Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China Ministry of Agriculture/College of Natural Resources and Environment Northwest A&F University Yangling 712100 P.R.China Biomass Energy Center for Arid and Semi-arid Lands Northwest A&F University Yangling 712100 P.R. China College of Water Resources and Architectural Engineering Northwest A&F University Yangling 712100 P.R. China College of Geography Sciences Shanxi Normal University Linfen 041000 P.R. China Graduate School of Agriculture Hokkaido University Sapporo 060-8589 Japan

The assessment of the biomass of energy crops has garnered widespread interest since renewable bioenergy may become a substantial proportion of the future energy supply, and modeling has been widely used for the simulation of energy crops yields. A literature survey revealed that 23 models have been developed or adapted for simulating the biomass of energy crops, including Miscanthus, switchgrass, maize, poplar, willow, sugarcane, and Eucalyptus camaldulensis. Three categories（radiation model, water-controlled crop model, and integrated model with biochemical and photosynthesis and respiration approaches） were addressed for the selected models according to different principles or approaches used to simulate biomass production processes. EPIC, ALMANAC, APSIM, ISAM, MISCANMOD, MISCANFOR, SILVA, DAYCENT, APEX and SWAT are radiation models based on a radiation use efficiency approach（RUE） with few empirical and statistical parameters. The Aqua Crop model is a typical water-crop model that emphasizes crop water use, the expression of canopy cover, and the separation of evapotranspiration to soil evaporation and plant transpiration to drive crop growth. CANEGRO, 3PG, Crop Syst and DSSAT are integrated models that use photosynthesis and respiration approaches. SECRETS, LPJm L, Agro-BGC, Agro-IBIS, and WIMOVAC/Bio Cro, DNDC, DRAINMOD-GRASS, and Ag TEM are integrated models that use biochemical approaches. Integrated models are mainly mechanistic models or combined with functional models, which are dynamic with spatial and temporal patterns but with complex parameters and large amounts of input data. Energy crop models combined with process-based models, such as EPIC in SWAT and CANEGRO in DSSAT, provide good examples that consider the biophysical, socioeconomic, and environmental responses and address the sustainability and socioeconomic goals for energy crops. The use of models for energy crop productivity is increasing rapidly and encouraging; however, relevant databases,

关键词： biomass energy crops models database principles

Toxicity of Nanoscale CuO and ZnO to Daphnia magna

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Chemical Research in Chinese Universities 2012年第2期28卷 209-213页

作者： ZHAO Hai-zhou LU Guang-hua XIA Jun jin shao-ge Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes Ministry of EducationCollege of EnvironmentHohai UniversityNanjing 210098P.R.China

The potential effects of nanoscale CuO（nCuO）,nanoscale ZnO（nZnO） and their mixtures on Daphnia magna were investigated,including 48-h acute toxicity and 21-d chronic toxicity tests as well as a feeding *** results of acute toxicity show that nCuO/nZnO mixture was the most toxic followed by nCuO and *** nanoparticles（NPs） inhibited both the growth and reproduction of Daphnia magna during the testing *** dependence was apparent in all the cases and the intrinsic rate of natural increase was confirmed to be a very sensitive parameter to NPs *** mixture appeared to be more toxic than the corresponding individual exposures at most cases except for the feeding behavior.

关键词： Daphnia magna Nanoparticle Binary mixture Toxicity