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Fabrication and Electrical Characteristics of Individual ZnO Submicron-Wire Field-Effect Transistor

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Chinese Physics Letters 2012年第3期29卷 184-186页

作者： JIANG wei GAO Hong XU ling-ling Key Laboratory of Semiconductor Nanocomposite Materials(Ministry of Education) School of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025

Fabrication and electrical characteristics of individual ZnO submicro-wire field-effect transistors(FETs)are investigated by a simple micro-grid template *** fabricated back-gate ZnO submicro-wire FET is characterized at room temperature in *** gate voltage Vgs curves reveal gating effect characteristic of n-type *** field effect mobility of the ZnO submicro-wire is determined to be 7.9cm^(2)/V_(ds)at V_(ds)=2 V,the capacitance and transconductance are estimated to be about 3.9fF and 15.5nS,*** sensitive property is measured using a 325-nm laser as the excitation *** to the result carried in darkness,the ZnO submicro-wire FET is sensitive to UV irradiation,which indicates its potential application on UV *** results show that the approach introduced here allows the possibility of fabricating low-cost,reliable and flexible microelectronic devices.

关键词： effect template capacitance

Pd-catalyzed ortho-olefination of aromatic acetyl esters

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Chinese Chemical Letters 2017年第3期28卷 517-520页

作者： Lei xiang Kai Yang Qiu-ling Song Institute of Next Generation Matter Transformation College of Chemical Engineering at Huaqiao University Institute of Pharmacy and Pharmacology Learning Key Laboratory for Pharmacoproteomics University of South China

A Pd（Ⅱ）-catalyzed ortho-olefination of aromatic acetic esters is described which features with an excellent funcitional group tolerance, good yields, mild reaction conditions, good scalability as well as high chemo... 详细信息

关键词： ortho-Olefination Aromatic acetyl ester Pd catalyst C–H activation Weak coordination

Complex Dynamics in Physical Pendulum Equation with Suspension Axis Vibrations

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Acta Mathematicae Applicatae Sinica 2010年第1期26卷 55-78页

作者： xiang-ling Fu Jin Deng Zhu-jun Jing College of Mathematics and Computer Sciences Hunan Normal University Changsha 410081 China School of Mathematics Hunan University of Science and Technology Xiangtan 411201 China Academy of Mathematics and Systems Sciences Chinese Academy of Sciences Beijing 100190 China Department of Mathematics and Physics Hunan Institute of Engineering Xiangtan 411104 China

The physical pendulum equation with suspension axis vibrations is investigated. By using Melnikov＇s method, we prove the conditions for the existence of chaos under periodic perturbations. By using second-order averaging method and Melinikov＇s method, we give the conditions for the existence of chaos in an averaged system under quasi-periodic perturbations for Ω = nω ＋ εv, n = 1 - 4, where ν is not rational to ω. We are not able to prove the existence of chaos for n = 5 - 15, but show the chaotic behavior for n = 5 by numerical simulation. By numerical simulation we check on our theoretical analysis and further exhibit the complex dynamical behavior, including the bifurcation and reverse bifurcation from period-one to period-two orbits; the onset of chaos, the entire chaotic region without periodic windows, chaotic regions with complex periodic windows or with complex quasi-periodic windows; chaotic behaviors suddenly disappearing, or converting to period-one orbit which means that the system can be stabilized to periodic motion by adjusting bifurcation parameters α, δ, f0 and Ω; and the onset of invariant torus or quasi-periodic behaviors, the entire invariant torus region or quasi-periodic region without periodic window, quasi-periodic behaviors or invariant torus behaviors suddenly disappearing or converting to periodic orbit; and the jumping behaviors which including from period- one orbit to anther period-one orbit, from quasi-periodic set to another quasi-periodic set; and the interleaving occurrence of chaotic behaviors and invariant torus behaviors or quasi-periodic behaviors; and the interior crisis; and the symmetry breaking of period-one orbit; and the different nice chaotic attractors. However, we haven＇t find the cascades of period-doubling bifurcations under the quasi-periodic perturbations and show the differences of dynamical behaviors and technics of research between the periodic perturbations and quasi-periodic perturbations.

关键词： Pendulum equation suspension axis vibrations averaging method Melnikov's method bifurcations chaos

Bifurcations of Resonant Solutions and Chaos in Physical Pendulum Equation with Suspension Axis Vibrations

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Acta Mathematicae Applicatae Sinica 2010年第4期26卷 677-704页

作者： xiang-ling Fu Jin Deng Jian-ping Yang School of Mathematics Hunan University of Science and TechnologyHunan 411201China College of Mathematics and Computer Sciences Hunan Normal UniversityHunan 410081China Department of Mathematics and Physics Hunan Institute of EngineeringHunan 411104China College of Science China Agricultural UniversityBeijing 100083China

This paper is a continuation of ＂Complex Dynamics in Physical Pendulum Equation with Suspension Axis Vibrations＂[1].In this paper,we investigate the existence and the bifurcations of resonant solution for ω0：ω：Ω ≈ 1：1：n,1：2：n,1：3：n,2：1：n and 3：1：n by using second-order averaging method,give a criterion for the existence of resonant solution for ω0：ω：Ω ≈ 1：m：n by using Melnikov＇s method and verify the theoretical analysis by numerical *** numerical simulation,we expose some other interesting dynamical behaviors including the entire invariant torus region,the cascade of invariant torus behaviors,the entire chaos region without periodic windows,chaotic region with complex periodic windows,the entire period-one orbits region;the jumping behaviors including invariant torus behaviors converting to period-one orbits,from chaos to invariant torus behaviors or from invariant torus behaviors to chaos,from period-one to chaos,from invariant torus behaviors to another invariant torus behaviors;the interior crisis;and the different nice invariant torus attractors and chaotic *** numerical results show the difference of dynamical behaviors for the physical pendulum equation with suspension axis vibrations between the cases under the three frequencies resonant condition and under the periodic/quasi-periodic *** exhibits many invariant torus behaviors under the resonant *** find a lot of chaotic behaviors which are different from those under the periodic/quasi-periodic ***,we did not find the cascades of period-doubling bifurcation.

关键词： Pendulum equation suspension axis vibrations averaging method Melnikov's method bifurcations chaos three frequencies resonances resonant solution

Reaction of Crossed Diperoxidation Between Cyclic Ketones and Alkyl Ketones

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Chemical Research in Chinese Universities 2002年第4期18卷 412-413页

作者： XU wei-liang FU Cheng-ling Organic Chemistry Group Huajiachi SectionZhejiang UniversityHangzhou 310029P.R.China

The reaction of crossed diperoxidation between the cyclic ketones and the alkyl ketones was investigated. The reaction is a competing in different ketones. It is slightly favorable to resulting in crossed ketone diper... 详细信息

关键词： Synthesis Crossed diperoxidation Crossed ketone diperoxide

A 31-year Global Diurnal Sea Surface Temperature Dataset Created by an Ocean Mixed-Layer Model

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Advances in Atmospheric Sciences 2018年第12期35卷 1443-1454页

作者： xiang LI Tiejun ling Yunfei ZHANG Qian ZHOU Key Laboratory of Research on Marine Hazards Forecasting National Marine Environmental Forecasting CenterState Oceanic Administration

A dataset of hourly sea surface temperature(SST) from the period 1 January 1982 to 31 December 2012, and covering the global ocean at a resolution of 0.3°× 0.3°, was created using a validated ocean mixed-layer model(MLSST). The model inputs were heat flux and surface wind speed obtained from the Coupled Forecast System Reanalysis dataset. Comparisons with in-situ data from the Tropical Atmosphere Ocean array and the National Data Buoy Center showed that the MLSST fitted very well with observations, with a mean bias of 0.07℃, and a root-mean-square error(RMSE) and correlation coefficient of 0.37℃ and 0.98, respectively. Also, the MLSST fields successfully reproduced the diurnal cycle of SST in the in-situ data, with a mean bias of -0.005℃ and RMSE of 0.26℃. The 31-year climatology revealed that the diurnal range was small across most regions, with higher values in the eastern and western equatorial Pacific, northern Indian Ocean, western Central America, northwestern Australia, and several coastal regions. Significant seasonal variation of diurnal SST existed in all basins. In the Atlantic and Pacific basins, this seasonal pattern was oriented north–south, following the variation in solar insolation, whereas in the Indian basin it was dominated by monsoonal variability. At the interannual scale, the results highlighted the relationship between diurnal and interannual variations of SST, and revealed that the diurnal warming in the central equatorial Pacific could be a potential climatic indicator for ENSO prediction.

关键词： SST diurnal cycle mixed-layer model climatic variation

A pooling strategy of a PCR-based assay to detectAngiostrongylus cantonensis in snail intermediate host,Pomacea canaliculata

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Frontiers of Medicine 2010年第2期4卷 204-207页

作者： Fu-Rong wei Shan LV He-xiang LIU ling HU Yi ZHANG Department of Vector Control National Institute of Parasitic DiseaseChinese Center for Disease Control and PreventionKey Laboratory of Parasite and Vector Biology of the Ministry of HealthShanghai 200025China

Poolingﬁeld specimens could reduce the number of assay and thus increase the efﬁciency in detecting and screening pathogen infections by polymerase chain reaction(PCR)-based *** investigated a pooling strategy in diagnosis of Angiostrongylus canto-nensis in Pomacea *** settings of speci-mens were prepared,divided into portions and detected by multiplex *** A was 0.4490 g positive lung tissue of 28 larval nodes from four snails mixed with 1.310 g negative lung tissue from six snails and divided into 32 *** B was 0.5448 g positive lung tissue with 26 larval nodes from two snails mixed with 1.092 g negative lung tissue from seven snails and divided into 48 *** sampling was performed and sample size-accumulated positive rate curves were *** to the sample size-accumulated positive rate curves,the appropriate sample size of the two specimens were 18 and 15,respectively,which is 0.36–0.58 to the total sample *** test characteristics and the relevant factors to the sample size would need to be determined in much larger studies and more appropriately inﬁeld *** result indicates that the number of larval node is not the most important,nor the only factor to the sample *** also implies the feasibility to detect *** in *** by pooling strategies.

关键词： Angiostrongylus cantonensis Pomacea cana-liculata multiplex polymerase chain reaction diagnosis pooling

Isolation and Manipulation of Quantitative Trait Loci for Disease Resistance in Rice Using a Candidate Gene Approach

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Molecular Plant 2008年第5期1卷 786-793页

作者： Ke-Ming Hu De-Yun Qiu xiang-ling Shen xiang-Hua Li Shi-Ping Wang National Key Laboratory of Crop Genetic Improvement National Center of Plant Gene Research (Wuhan) Huazhong Agricultural University Wuhan 430070 China

Bacterial blight caused by Xanthomonas oryzae pv. oryzae and fungal blast caused by Magnaporthe grisea result in heavy production losses in rice, a main staple food for approximately 50% of the world＇s population. Application of host resistance to these pathogens is the most economical and environment-friendly approach to solve this problem. Quantitative trait loci （QTLs） controlling quantitative resistance are valuable sources for broad-spectrum and durable disease resistance. Although large numbers of QTLs for bacterial blight and blast resistance have been identified, these sources have not been used effectively in rice improvement because of the complex genetic control of quantitative resistance and because the genes underlying resistance QTLs are unknown. To isolate disease resistance QTLs, we established a candidate gene strategy that integrates linkage map, expression profile, and functional complementation analyses. This strategy has proven to be applicable for identifying the genes underlying minor resistance QTLs in rice-Xoo and rice-M, grisea systems and it may also help to shed light on disease resistance QTLs of other cereals. Our results also suggest that a single minor QTL can be used in rice improvement by modulating the expression of the gene underlying the QTL. Pyramiding two or three minor QTL genes, whose expression can be managed and that function in different defense signal transduction pathways, may allow the breeding of rice cultivars that are highly resistant to bacterial blight and blast.

关键词： bacterial blight blast Oryza sativa quantitative resistance QTL.

Superior Toughened Biodegradable Poly(L-lactic acid)-based Blends with Enhanced Melt Strength and Excellent Low-temperature Toughness via In situ Reaction Compatibilization

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Chinese Journal of Polymer Science 2023年第3期41卷 373-385,I0007页

作者： Shi-ling Jia xiang-Yu Wang Ye Zhang xiang-Yu Yan Hong-wei Pan Yan Zhao Li-Jing Han Hui-Liang Zhang Li-Song Dong Hui-Xuan Zhang Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Materials Science and Engineering Changchun University of TechnologyChangchun 130012China

The toughened poly(L-lactic acid)/poly(butylene succinate-butylene terephthalate)(PLLA/PBST) blend with enhanced melt strength and excellent low temperature toughness and strength was prepared by melt compounding through in situ compatibilization reaction in presence of multifunctional epoxy compound(ADR).The PLLA/PBST blend was an immiscible system,and the compatibility of the PLLA/PBST blend was improved after adding *** and GPC curves confirmed the formation of the PLLA-g-PBST copolymer,which improved the interfacial bonding of the blend and therefore the PLLA/PBST/ADR blend showed excellent melt strength and mechanical *** the PLLA/PBST/ADR blend with 70/30 PLLA/PBST content,the complex viscosity increased significantly with increasing ADR ***,the tensile strength,elongation at break and impact strength all increased obviously with increasing the ADR *** elongation at break of the blend reached the maximum value of 392.7%,which was 93.2 times that of neat *** the impact strength of the blend reached the maximum value of 74.7 k J/m~2,which was 21.3 times that of neat ***,the PLLA/PBST/ADR blend exhibited excellent lowtemperature toughness and *** –20 ℃,the elongation at break of the PLLA/PBST/ADR blend was as high as 93.2%,and the impact strength reached 18.8 k J/m~***,the tensile strength of the blend at low temperature was also high(64.7 MPa),which was beneficial to the application of PLA in the low temperature *** addition,the PLLA/PBST/ADR blend maintaind good biodegradability,which was of great significance to the wide application of PLLA.

关键词： Poly(L-lactic acid) PBST Compatibilization Super toughness Low-temperature mechanical properties Biodegradability