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Effect of Isaria fumosoroseus on mortality and fecundity of Bemisia tabaci and Plutella xylostella

Insect Science 2010年第2期17卷 140-148页

作者： Zhen huang Shaukat Ali shun-Xiang Ren Jian-Hui Wu Engineering Research Center of Biological Control Ministry of Education College of Natural Resource and Environment South ChinaAgricultural University Guangzhou China

Entomopathogenic fungi have been used recently for the management ofwhite- fly （Bemisia tabaci） and diamondback moth （Plutella xylostella）. In previous studies, lsaria fumosoroseus has shown some potential to control these insect pests. In this paper, the ef- fects of I. fitmosoroseus （strain PF0 l-N4） on the mortality, fecundity and other life table parameters were observed under laboratory conditions. As a first step, the susceptibility of second instars ofB. tabaci and P. xylostella was examined in dose-response experiments, which was followed by the studies on the effect of/. fumosoroseus on reproduction. Both B. tabaci and P. xylostella, were susceptible to I. fumosoroseus having median lethal con- centration values ofl.10 x 104 and 0.48 ~ 104 conidia/mL after 12 and 11 days treatment, respectively. The fungal infection significantly reduced the longevity and fecundity of B. tabaci. At 1 ~ 107 conidia/mL, a minimum average longevity of 9 days was observed as compared to 16.3 days for the control. Similar results were also observed in P. xylostella with an average longevity of 5.6 days as compared to 17.68 days in the control. In case of reproduction, the number of progeny produced by B. tabaci and P. xylostella decreased with an increase in conidial concentration, with the average values of 83.67 and 26.85, 10.92 and 225.51,112.08 and 31.02 eggs/female for control, 1 × 10^4 and 1 × 10^7 conidial/mL, respectively. There was a significant effect of L. fumosoroseus on intrinsic rate of natural increase.

关键词： words Bemisia tabaci lsaria fumosoroseus longevity mortality Plutella xylostella reproduction

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Mechanical performance and texture characteristic of an IF steel containing Nb and Ti by double cold rolling

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International Journal of Minerals,Metallurgy and Materials 2009年第1期16卷 51-57页

作者： Ling-yun Wang Peng Zhang Wei Li guang-jie huang College of Materials Science and Engineering Chongqing University Chongqing 400030 China Technology Institute of Sichuan Chuanwei Group Co. Ltd. Weiyuan 642400 China

Single cold rolling and double cold rolling were applied to hot rolled strips with different reduction ratios. The evolutions of { 100}, { 111} and Goss face texture during double rolling were investigated by comparing the orientation distribution function （ODF） of the double rolled sample with that of the single rolled one. The double cold rolling texture is characterized by a higher γ-texture and a lower α-texture, and the { 111}〈112〉 component is improved remarkably. Based on the TEM observation and mechanical properties test, it is found that the reduction ratio assignment significantly affects the texture variation, as-annealing microstructures, and properties of the double cold rolled samples. These results may provide a theoretical guide for the industrial production of double cold rolled IF steel.

关键词： IF steel cold rolling double cold rolling texture mechanical properties

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Electrochemical behaviors of hierarchical copper nano- dendrites in alkaline media

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Nano Research 2018年第8期11卷 4225-4231页

作者： Bowei Zhang guang Yang Chaojiang Li Kang huang Junsheng Wu Shiji Hao Yizhong huang School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore Interdisciplinary Graduate School Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive I Singapore 117575Singapore Institute of Advanced Materials and Technology University of Science and Technology Beijing Beijing 100083 China

In this study, hierarchical copper nano-dendrites （CuNDs） are fabricated via the electrodeposition method. The electrochemical behaviors of the as-obtained hierarchical CuNDs in 0.1 M NaOH aqueous solution are subsequently studied. The CuNDs experience a non-equilibritrm oxidation process when subjected to cyclic voltammetry （CV） measurements. The first oxidation peak O1 in CV is attributed to the formation of an epitaxial Cu20 layer over the surface of the hierarchical CuNDs. However, the second oxidation peak 02 in CV appears unusually broad across a wide potential range. In this region, the reaction process starts with the nucleation and growth of Cu（OH）2 nanoneedles, followed by the oxidation of Cu20. Upon the increase of potential Cu20 is gradually transformed to CuO and Cu（OH）2, forming a dual-layer structure with high productivity of Cu（OH）2 nanoneedles.

关键词： copper nano-dendrites(CuNDs) non-equilibrium oxidation Cu(OH)2 nanoneedles alkaline aqueous solution

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Silicon Effect on the Enantioselective Transcyanation of Acetyltrimethylsilane Examined by Different Oxynitrilases

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Chinese Chemical Letters 2005年第10期16卷 1317-1320页

作者： Sen Lin LIU Min Hua ZONG shun Rong huang College of Life Science Shenzhen University Shenzhen 518060 Biotechnology Department South China University of Technology Guangzhou 510640 College of Life Science Northeast Normal University Changchun 130024

The synthesis of optically active （R）- and （S）-2-trimethylsilyl-2-hydroxyl propionitrile by enantioselective transcyanation of acetyltrimethylsilane with acetone cyanohydrin was successfully carded out using defatted plum, loquat , peach, almond or apple seed meals as （R）-oxynitrilase source and using Manihot esculenta leaves as （S）-oxynitrilase source in a biphasic system with good conversion and high enantiomeric excess. Comparative study demonstrated that silicon atom in substrate showed great effect on the reaction and due to the unique characteristics of silicon atom, both the substrate conversion and the product e.e. of the transcyanation of acetyltrimethylsilane were much higher than those of its carbon counterpart 3,3-dimethyl-2-butanone for all examined oxynitrilases.

关键词： Enantioselective transcyanation cyanohydrin oxynitrilase acetyltrimethylsilane.

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Experimental review on Majorana zero-modes in hybrid nanowires

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Science China(Physics,Mechanics & Astronomy) 2021年第10期64卷 38-53页

作者： Ji-Bang Fu Bin Li Xin-Fang Zhang guang-Zheng Yu guang-Yao huang Ming-Tang Deng Institute for Quantum Information&State Key Laboratory of High Performance Computing College of Computer Science and TechnologyNational University of Defense TechnologyChangsha 410073China

As the condensed matter analog of Majorana fermion, the Majorana zero-mode is well known as a building block of fault-tolerant topological quantum computing. This review focuses on the recent progress of Majorana experiments, especially experiments about semiconductor-superconductor hybrid devices. We first sketch Majorana zero-mode formation from a bottom-up view,which is more suitable for beginners and experimentalists. Then, we survey the status of zero-energy state signatures reported recently, from zero-energy conductance peaks, the oscillations, the quantization, and the interactions with extra degrees of freedom. We also give prospects of future experiments for advancing one-dimensional semiconductor nanowire-superconductor hybrid materials and devices.

关键词： electronic transport in nanoscale materials and structures quantum wires proximity efect superconducting low-dimensional structures

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Microstructure simulation of rapidly solidified ASP30 high-speed steel particles by gas atomization

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International Journal of Minerals,Metallurgy and Materials 2016年第3期23卷 294-302页

作者： Jie Ma Bo Wang Zhi-liang Yang guang-xin Wu Jie-yu Zhang shun-li Zhao State Key Laboratory of Advanced Special Steel Shanghai University School of Materials Science and Engineering Shanghai University Research Institute Baoshan Iron & Steel Co. Ltd.

In this study, the microstructure evolution of rapidly solidified ASP30 high-speed steel particles was predicted using a simulation method based on the cellular automaton-finite element （CAFE） model. The dendritic growth kinetics, in view of the characteristics of ASP30 steel, were calculated and combined with macro heat transfer calculations by user-defined functions （UDFs） to simulate the microstructure of gas-atomized particles. The relationship among particle diameter, undercooling, and the convection heat transfer coefficient was also inves- tigated to provide cooling conditions for simulations. The simulated results indicated that a columnar grain microstructure was observed in small particles, whereas an equiaxed microstructure was observed in large particles. In addition, the morphologies and microstructures of gas-atomized ASP30 steel particles were also investigated experimentally using scanning electron microscopy （SEM）. The experimental re- suits showed that four major types ofmicrostructures were formed： dendritic, equiaxed, mixed, and multi-droplet microstructures. The simu- lated results and the available experimental data are in good agreement.

关键词： high-speed steel rapid solidification microstructure grain growth gas atomization

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External blast flow field evolution and response mechanism of single-layer reticulated dome structure

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Defence Technology（防务技术） 2023年第6期24卷 241-253页

作者： Shao-bo Qi guang-yan huang Xu-dong Zhi Feng Fan State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081PR China Key Lab of Structure Dynamic Behaviour and Control of the Ministry of Education Harbin Institute of TechnologyHarbin150090China Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of Ministry of Industry and Information Technology Harbin Institute of TechnologyHarbin150090China Beijing Institute of Technology Chongqing Innovation Center Chongqing401120China

Single-layer reticulated dome structure are commonly high-profile building in the public and can be attractive targets for terrorist bombings,so the public can benefit from enhanced safety with a stronger understanding of the behavior of single-layer reticulated dome structure under *** paper investigates the fluid-structure interaction process and the dynamic response performance of the singlelayer reticulated dome under external blast *** experimental and numerical results shown that structural deformation is remarkably delayed compared with the velocity of blast wave,which advises the dynamic response of large-span reticulated dome structure has a negligible effect on the blast wave propagation under *** failure modes are identified by comparing the plastic development of each ring and the residual spatial geometric of the structure,i.e.,minor vibration,local depression,severe damage,and overall *** plastic deformation energy and the displacement potential energy of the structure are the main consumers of the blast *** addition,the stress performance of the vertex member and the deep plastic ratio of the whole structure can serve as qualitative indicators to distinguish different failure modes.

关键词： External blast loading Reticulated dome structure Fluid-structure interaction Dynamic response mode Response mechanism

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A Study of Supervision Performance of China's Commercial Banks from the Perspective of the Trinity-Characteristics of Bank Supervision System

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当代财经 2015年第S1期 65-76页

作者： LV Jianglin huang guang Jiangxi University of Finance and Economics

Based on the theoretical analysis, this paper applies the entropy method to establish a comprehensive index system for the evaluation of the overall level of risk control and comprehensive efficiency of the supervision of China's commercial banks. Considering the trinity-characteristics of bank supervision system consisting of the People's Bank of China(PBC), the CBRC and the financial offices of local governments,the following conclusions have been drawn: the amount of penalties on banking illegal transactions is not correlated with the supervision efficiency of China's commercial banks; the capital adequacy ratio, the loan to deposit ratio, the percentage point of the non-performing loan rate of urban commercial banks higher than that of the national joint-stock banks are negatively correlated with the supervision efficiency of China's commercial banks; the total asset variation of the PBC and the different loan balance in local and foreign currency of the banks are positively correlated with the supervision efficiency of China 's commercial banks, but the effect is minor. Therefore, China should give the capital adequacy ratio a full play in the bank supervision, accelerate the construction of supervision information system and improve the supervision function of the local governments.

关键词： bank supervision performance evaluation risk control comprehensive efficiency

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Transjugular intrahepatic portosystemic shunt is effective in patients with chronic portal vein thrombosis and variceal bleeding

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Hepatobiliary & Pancreatic Diseases International 2021年第2期20卷 128-136页

作者： Xiao-Yan Sun guang-Chuan Wang Jing Wang guang-Jun huang Chun-Qing Zhang Department of Gastroenterology Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021China Department of Infectious Diseases Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021China

Background:Studies about treatment of patients with chronic portal vein thrombosis(CPVT)are still limited,especially in different types of *** study aimed to evaluate the effect of transjugular intrahepatic portosystemic shunt(TIPS)in all types of CPVT with variceal ***:Patients with CPVT who received TIPS treatment between January 2011 and June 2019 were divided into four types according to the extent of *** patients had a history of variceal *** characteristics and clinical parameters were collected and *** on procedure success rate,variation in portal vein pressure,rebleeding,hepatic encephalopathy(HE),stent stenosis,and overall mortality were ***:A total of 189 patients were included in this study(39 in type 1,84 in type 2,48 in type 3,18 in type 4).The TIPS procedure success rate was 86.2%.The success rate was significantly different among the four types(89.7%vs.88.1%vs.83.3%vs.77.8%,P=0.001).In the TIPS success group,portal vein pressure was significantly reduced from 27.15±6.59 to 19.74±6.73 mm Hg after the procedure(P<0.001)and the rebleeding rate was significantly lower than that of the fail group(14.7%vs.30.8%,P=0.017).In addition,there were no significant differences in HE rate(30.7%vs.26.9%,P=0.912)or overall mortality(12.9%vs.19.2%,P=0.403)between the TIPS success group and the fail *** the TIPS success group,we found that the occurrence of HE was significantly different(P=0.020)among the four types,while there were no significant differences in rebleeding rate(P=0.669),stent stenosis rate(P=0.056),or overall mortality(P=0.690).Conclusions:TIPS was safe and effective in decreasing portal vein pressure and rebleeding rate in patients with CPVT.

关键词： Chronic portal vein thrombosis Transjugular intrahepatic portosystemic shunt Variceal bleeding Hepatic encephalopathy

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Modeling and analysis of passive dynamic bipedal walking with segmented feet and compliant joints

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Acta Mechanica Sinica 2012年第5期28卷 1457-1465页

作者： Yan huang Qi-Ning Wang Yue Gao guang-Ming Xie Intelligent Control Laboratory College of EngineeringPeking University

Passive dynamic walking has been developed as a possible explanation for the efficiency of the human gait. This paper presents a passive dynamic walking model with segmented feet, which makes the bipedal walking gait more close to natural human-like gait. The proposed model extends the simplest walking model with the addition of fiat feet and torsional spring based compliance on ankle joints and toe joints, to achieve stable walking on a slope driven by gravity. The push-off phase includes foot rotations around the toe joint and around the toe tip, which shows a great resemblance to human normal walking. This paper investigates the effects of the segmented foot structure on bipedal walking in simulations. The model achieves satisfactory walking results on even or uneven slopes.

关键词： Passive dynamic walking · Segmented feet·Compliant joints· Bipeds

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