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Journal of Rare Earths 2019年第8期37卷 895-902,I0005页

作者： Cansong Lu Yanjun Ma jianwen wang College of Pharmaceutical Sciences Soochow University

Rare earth elements(REEs)have been widely applied as efficient elicitors to improve production of biologically important secondary metabolites in ***,their effects on microbial secondary metabolites were seldom *** this study,lanthanum(LaCl3)was used as an elicitor in mycelium cultures of Shiraia bambusicola to stimulate the production of hypocrellin A(HA),a promising photosensitizer for anticancer photodynamic ***^3+at 1.0 g/L not only increases HA content by 2.50-fold in mycelia,but stimulates HA exudation to the medium with the highest production(225.05 mg/L)on day *** analysis shows that La^3+can induce the intracellular ROS(reactive oxygen species)accumulation with 2.33-fold higher contents of H2O2 in *** production induced by La^3+treatment can be suppressed by ROS *** analysis reveals that the elicitation of La^3+on HA accumulation is mediated by ROS generation to enhance expression of HA biosynthetical *** expression of ATP-binding cassette transporter gene(SbABC)for HA exudation is also regulated partially via ROS generated by NADPH *** results indicate that the enhanced HA production by La^3+might be mediated by ROS signaling *** results provide a basis for understanding REE elicitation on fungal metabolites and a practical biotechnological process for enhanced production of HA.

关键词： Lanthanum Shiraia bambusicola Hypocrellin A Reactive oxygen species Elicitation Rare earths

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Lanthanum:A novel inducer for enhancement of fungal laccase production by Shiraia bambusicola

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Journal of Rare Earths 2022年第3期40卷 508-516,I0006页

作者： Yue wang Xiang Zhang Cansong Lu Xinping Li Jianqin Zhou jianwen wang College of Pharmaceutical Sciences Soochow UniversitySuzhou 215123China

Fungal laccases are industrially important inducible enzymes extensively used in the delignification of lignocellulosics,detoxification of environmental wastes and decolorization of textile *** discovery of new inducers is crucial for laccase productivity by filamentous *** this study,a novel laccase-producing strain S8 from a bambusicolous fungus Shiraia bambusicola was identified by using 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonate)as laccase secretion indicator and native polyacrylamide gel *** corresponding full-length cDNA of laccase was cloned and *** effect of lanthanum(LaCl_(3))on extracellular laccase activity was tested at the concentration from 0.2 to 2.0 g/L and at different addition time(day 1-4)in the mycelium *** the presence of 1.0 g/L La^(3+) at the beginning of the mycelium cultures,the highest laccase activity(2.7×10^(4) U/L)is reached after 10 days of cultivation,about tenfold higher compared with non-induced ***^(3+) is shown to be a very strong inducer for fungal laccase activity with no inhibitory effect on fungal growth at the optimized *** vivo,La^(3+) added to the mycelium culture not only promotes a continuous and high expression of laccase gene(lcc1),but also induces a rapid generation of signaling molecules including reactive oxygen species(ROS)and nitric oxygen(NO).Both the NO donor sodium nitroprusside(SNP)and exogenous hydrogen peroxide(H_(2)O_(2))potentiate La^(3+)-induced laccase activity and increase membrane permeability of hyphal ***,the scavengers such as 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide(cPTIO)for NO and vitamin C for ROS suppress the *** results suggest that these signals can mediate La^(3+)-induced laccase biosynthesis and its *** study provides a basis for understanding the induction mechanism of La^(3+) on laccase and a practical strategy for enhanced fungal laccase production.

关键词： Lanthanum Laccase Shiraia bambusicola Reactive oxygen species Nitric oxide Inducer

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Instability of TiC and TiAl3 compounds in Al-10Mg and Al-5Cu alloys by addition of Al-Ti-C master alloy

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Journal of University of Science and Technology Beijing 2006年第2期13卷 144-148页

作者： Lina Yu Xiangfa Liu Zhenqing wang jianwen Liu Key Laboratory of Liquid Structure and Heredity of Materials Ministry of Education Shandong University Jinan 250061 China

The performance of Al-Ti-C master alloy in refining Al-10Mg and Al-5Cu alloys was studied by using electron probe micro-analyzer （EPMA） and X-ray diffractometer （XRD） analysis. The results indicate that there are obvious fading phenomena in both Al-10Mg and Al-5Cu alloys with the addition of Al-5Ti-0.4C refiner which contains TiC and TiAl3 compounds. Mg element has no influence on the stability of TiC and TiAl3, while TiC particles in Al-10Mg alloy react with Al to form Al4C3 particles, resulting in the refinement fading. However, TiC particles are relatively stable in Al-5Cu alloy, while TiAl3 phase reacts with Al2Cu to produce a new phase Ti（Al, Cu）2, which is responsible for the refinement fading in Al-5Cu alloy. These indicate that the refinement fading will not occur only when both the TiC particles and TiAl3 compound of Al-Ti-C refiner are stable in Al alloys.

关键词： Al-Ti-C instability TiC TiAl3 Al-Mg Al-Cu

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Study of the Flow Mechanism of Wind Turbine Blades in the Yawed Condition

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Energy Engineering 2022年第4期119卷 1379-1392页

作者： Shuang Zhao Xijun Li jianwen wang College of Energy and Power Engineering Inner Mongolia University of TechnologyHohhot010051China Key Laboratory ofWind Energy and Solar Energy Technology Ministry of EducationHohhot010051China Key Laboratory of Wind and Solar Energy Utilization andOptimization in Inner Mongolia Autonomous Region Hohhot010051China Beijing Jingneng International Integrated Smart Energy Co. Ltd.Beijing100073China

The computational fluid dynamics method was used to simulate the flow field around a wind turbine at the yaw angles of 0°,15°,30°,and 45°.The angle of attack and the relative velocity of the spanwise sections of the blade were extracted with the reference points *** analyzing the pressure distribution and the flow characteristics of the blade surface,the flow mechanism of the blade surface in the yawed condition was *** results showed that the variations of the angle of attack and the relative velocity were related to the azimuth angle and the radius in the yawed *** larger the yaw angle was,the larger the variation *** pressure distribution in the spanwise sections was affected by both the angle of attack and the relative *** angle of attack was more influential than the relative *** the same yaw angle,when the angle of attack decreased,the c_(p)∼x/c curve shrunk inward and the lift force *** larger the yaw angle was,the more obvious the shrink *** effect of the yaw on the blade root region was higher than its effect on the blade tip region.

关键词： Flow characteristic angle of attack relative velocity pressure coefficient flow separation

Extraction of Strain Characteristic Signals from Wind Turbine Blades Based on EEMD-WT

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Energy Engineering 2023年第5期120卷 1149-1162页

作者： Jin wang Zhen Liu Ying wang Caifeng Wen jianwen wang School of Mechanical Engineering Inner Mongolia University of TechnologyHohhot010051China School of Energy and Power Engineering Inner Mongolia University of TechnologyHohhot010051China Inner Mongolia Key Laboratory of Wind energy and Solar Energy Utilization Mechanism and Optimization Hohhot010051China

Analyzing the strain signal of wind turbine blade is the key to studying the load of wind turbine blade,so as to ensure the safe and stable operation of wind turbine in natural *** strain signal of the wind turbine blade under continuous crosswind state has typical non-stationary and unsteady *** strain signal contains a lot of noise,which makes the analysis ***,it is very important to denoise and extract features of measured signals before signal *** this paper,the joint algorithm of ensemble empirical mode decomposition(EEMD)and wavelet transform(WT)is used for the first time to achieve sufficient noise reduction and effectively extract the feature signals of non-stationary strain *** application process of EEMD-WT is *** optimization can avoid the repeated selection of wavelet basis function and the number of decomposition layers due to different crosswind *** adaptively decomposes the strain signal into intrinsic mode functions,to judge the frequency of IMFs,remove the high-frequency noise components,retain the useful *** useful components are denoised twice by the wavelet transform,the components and residual terms after the secondary denoising are reconstructed to obtain the characteristic *** EEMD-WT was applied to process the simulating signals andmeasured the strain *** results were compared with the results of the *** results showed that the EEMD-WTmethod has better noise reduction performance,and can effectively extract the characteristics of strain signals,which lays a solid foundation for accurate analysis of wind turbine blade strain signals under crosswind conditions.

关键词： Blade strain nonstationary signal ensemble empirical mode decomposition wavelet transform characteristic signal

Spatial patterns of net primary productivity and its driving forces:a multi-scale analysis in the transnational area of the Tumen River

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Frontiers of Earth Science 2020年第1期14卷 124-139页

作者： jianwen wang Da ZHANG Ying NAN Zhifeng LIU Dekang QI Department of Geography Yanbian UniversityYanji 133002China Center for Human-Environment System Sustainability(CHESS) State Key Laboratory of Earth Surface Processes and Resource Ecology(ESPRE)Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China School of Natural Resources Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China

Analyzing the spatial patterns of net primary productivity(NPP)and its driving forces in transnational areas provides a solid basis for understanding regional ecological processes and ecosystem ***,the spatial patterns of NPP and its driving forces have been poorly understood on multiple scales in transnational *** this study,the spatial patterns of NPP in the transnational area of the Tumen River(TATR)in 2016 were simulated using the Carnegie Ames Stanford Approach(CASA)model,and its driving forces were analyzed using a stepwise multiple linear regression *** found that the total amount of NPP in the TATR in 2016 was approximately 14.53 *** amount of NPP on the Chinese side(6.23 TgC)was larger than those on the other two sides,accounting for 42.88%of the total volume of the entire *** different land-use and land-cover(LULC)types,the amount of NPP of the broadleaf forest was the largest(11.22 TgC),while the amount of NPP of the bare land was the *** NPP per unit area was about 603.21 gC/(m2 yr)across the entire region,while the NPP per unit area on the Chinese side was the largest,followed by the Russian side and the DPRK's *** spatial patterns of NPP were influenced by climate,topography,soil texture,and human *** addition,the driving forces of the spatial patterns of NPP in the TATR had an obvious scaling effect,which was mainly caused by the spatial heterogeneity of climate,topography,soil texture,and human *** suggest that effective land management policies with cooperation among China,the DPRK,and Russia are needed to maintain NPP and improve environmental sustainability in the TATR.

关键词： transnational area of the Tumen River NPP spatial pattern driving force multiple scale

State and Output Feedback Regularization for Descriptor Systems by Kalman Canonical Form

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State and Output Feedback Regularization for Descriptor Syst...

Conditional selection with CNN augmented transformer for multimodal affective analysis

第25届中国控制与决策会议

作者： jianwen wang Guoshan Zhang Department of Fundamental Sciences Shenyang Institute of Engineering School of Electrical Engineering and Automation Tianjin University

ISBN: (纸本)9781467355322

The problem of state and output feedback regularization for descriptor systems by Kalman canonical form is investigated. First we give the Kalman canonical form for the descriptor systems, by which structure, the regularization and the impulsive mode elimination can be conveniently explored. Then necessary and sufficient conditions are given for the closed loop system to be regular and impulse-free by a parameterized state or output feedbacks. Furthermore, a structured output P-D feedback is considered and a necessary and sufficient condition for the closed loop systems to be regular and impulse-free by the structured output P-D feedback control is presented. The main results are given in terms of subsystem parameters by the Kalman canonical form, in which the structure of system matrix is revealed. Finally, an example is provided to illustrate the correctness of the theory.

关键词： Descriptor systems regularization proportional-derivative (P-D) feedback Kalman canonical form

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 917-931页

作者： jianwen wang Shiping wang Shunxin Xiao Renjie Lin Mianxiong Dong Wenzhong Guo College of Computer and Data Science Fuzhou UniversityFuzhouChina College of Computer and Cyber Security Fujian Normal UniversityFuzhouChina Key Laboratory of Network Computing and Intelligent Information Processing Fuzhou UniversityFuzhouChina Digital Fujian Institute of Big Data Security Technology Fujian Normal UniversityFuzhouChina Department of Sciences and Informatics Muroran Institute of TechnologyMuroranJapan

Attention mechanism has been a successful method for multimodal affective analysis in recent years. Despite the advances, several significant challenges remain in fusing language and its nonverbal context information. One is to generate sparse attention coefficients associated with acoustic and visual modalities, which helps locate critical emotional se-mantics. The other is fusing complementary cross‐modal representation to construct optimal salient feature combinations of multiple modalities. A Conditional Transformer Fusion Network is proposed to handle these problems. Firstly, the authors equip the transformer module with CNN layers to enhance the detection of subtle signal patterns in nonverbal sequences. Secondly, sentiment words are utilised as context conditions to guide the computation of cross‐modal attention. As a result, the located nonverbal fea-tures are not only salient but also complementary to sentiment words directly. Experi-mental results show that the authors’ method achieves state‐of‐the‐art performance on several multimodal affective analysis datasets.

关键词： affective computing data fusion information fusion multimodal approaches

Mechanism of water savings and pollution reduction in paddy fields of three typical areas in southern China

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International Journal of Agricultural and Biological Engineering 2022年第1期15卷 199-207页

作者： Menghua Xiao Yuanyuan Li Yi Jia jianwen wang Zhejiang Institute of Hydraulics and Estuary(Zhejiang Institute of Marine Planning and Design) Hangzhou 310020China North China University of Water Resource and Electric Power Zhengzhou 450045China Zhejiang Rural Water Conservancy Management Center Hangzhou 310009China Qiantang River Irrigation Area Management Center Xiaoshan DistrictHangzhou CityHangzhou 311200China

Field irrigation and drainage regulation and fertilization application could affect water utilization and pollution transportation in a paddy *** this study,representative rice-producing areas of Zhejiang Province in southern China were selected to study the effects of different field water level control(conventional irrigation and drainage W0,controlled irrigation and drainage W1 and W2)and different fertilization methods(2 times of fertilization F2 and three times of fertilization F3)on water irrigation quantity and consumption of rice,rice growth,water utilization,and pollution *** showed that field water level control had a great effect on irrigation quota in growing period rather than that in soaking period,and irrigation quota for W0 was 37.0%-71.7%higher than that for W1 and W2 in the whole growth period of *** the upper limit of rain storage was greatly increased by W1 and W2,on the contrary,the yield under W1 and W2 was 0.4%-2.1%higher than that under *** consumption,water leakage,and evapotranspiration were 16.63%-34.4%,39.97%-60.8%,and 9.40%-31.53%lower under W1 and W2 than those under W0,respectively,while it showed no significant changes under W1 and *** use rate and WUEI(water use efficiency of irrigation)under W1 and W2 had been significantly improved by 8.20%-129.58%and 31.58%-201.61%compared to *** contribution of nitrogen and phosphorus loss from surface water accounted for 90%and the total pollution load of total nitrogen(TN),NO_(3)^(-)-N,NH_(4)^(+)-N and chemical oxygen demand(COD)were 20.0%-63.4%,21.8%-66.3%,21.5%-63.8%,and 21.4%-46.5%lower for W1 and W2 than that for W0,***,compared to F2,dispersed fertilization(F3)was beneficial to increase the yield and decrease pollutant ***,the path of IRA→NH_(4)^(+)-N→COD and IRA→WCA→WUE_(I) presented partial remediation effect,and the effect size was 23.6%and 38.1%,respectively,the path of IRA→WUE_(I)→WUE_(ET) presented a full r

关键词： controlled irrigation and drainage water consumption water use efficiency non-point source pollution structural equation mode

Study on Legal Transplant of China's Company Law from United States Limited Liability Company(LLC)——Based on the Perspective of Sociology of Law

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学术界 2011年第1期 264-265页

作者： Xu Genhong wang jianwen Hohai University

The United States limited liability company(LLC) enriches the company form of organization of innovative content and accelerates the process of economic *** China’s economic restructuring and legal construction accelerate,the comparative advantage of LLC is of necessity and importance for China to decide whether and how to carry out *** paper is to a certain extent based on sociological analysis of the law of LLC and concludes that introducing LLC of limited liability company should have dialectical *** this stage it seems proper to carry out "conservative" transplant attempt.

关键词： corporate law LLC internality legal migration social environment