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| 1 | Multi-agent systems for simulating traffic behaviors显示文摘Multi-agent systems allow the simulation of complex phenomena that cannot be easily described analytically. As an efficient tool, the agent-oriented traffic models have emerged to investigate vehicular traffic behaviors. In this article, a new agent-based traffic simulation model is proposed for solving the traffic simulation problems. A vehicle with the driver is represented as a composite autonomous agent in this model. Different from the classical car-following principles, vehicle-agent moving approaches are pro- posed instead of particle-hopping techniques. This model defines reasonable acceleration and deceleration rates at any certain condition. In this simulation, this can offer a natural, even cognitive way to follow the leader and switch lane. The simulation results have verified that this model has achieved more realistic results without loss of accuracy than those obtained from the cel- lular automata traffic models. This model can provide better simulation performance than the traditional vehicle-following models which are used to investigate the nonequilibrium traffic flow. A comparison of the real flow with the simulated freeway flow and lane capacity highlights the validness of this model. | DAI JiCai LI Xia | 2010 | Chinese Science Bulletin2010，55，3： | 4 |
| 2 | Different effects of foliar application of silica sol on arsenic translocation in rice under low and high arsenite stress显示文摘Foliar application of Si can generally reduce As translocation from roots to shoots in rice;however, it does not always work, particularly under high As stress. Here, the effects of foliar application of nanoscale silica sol on As accumulation in rice were investigated under low(2 μmol/L) and high(8 μmol/L) arsenite stress. The results revealed that foliar Si application significantly decreased the As concentration in shoots under low arsenite stress, but showed different effects under high arsenite stress after 7 days of incubation. The reduction in root-to-shoot As translocation under the 2 As + Si treatment was related to the down-regulation of Os Lsi1 and Os Lsi2 expression and up-regulation of Os ABCC1 expression in roots. In the 8 As + Si treatment, the expressions of Os Lsi1, Os Lsi2, and Os ABCC1 were significantly promoted, which resulted in substantially higher As accumulation in both the roots and shoots. In the roots, As predominantly accumulated in the symplasts(90.6%–98.3%), in which the majority of As was sequestered in vacuoles(79.0%–94.0%) under both levels of arsenite stress. Compared with that of the 8 As treatment, the 8 As + Si treatment significantly increased the As concentration in cell walls, but showed no difference in the vacuolar As concentration, which remained constant at approximately 69.1–71.7 mg/kg during days 4–7. It appeared that the capacity of root cells to sequester As in the vacuoles had a threshold, and the excess As tended to accumulate in the cell walls and transfer to the shoots via apoplasts under high arsenite stress. This study provides a better understanding of the different effects of foliar Si application on As accumulation in rice from the view of arseniterelated gene expression and As subcellular distribution in roots. | Dandan Pan Chuanping Liu Jicai Yi Xiaomin Li Fangbai Li | 2021 | Journal of Environmental Sciences2021，33，7： | 3 |
| 3 | Image recognition and empirical application of desert plant species based on convolutional neural network显示文摘In recent years,deep convolution neural network has exhibited excellent performance in computer vision and has a far-reaching impact.Traditional plant taxonomic identification requires high expertise,which is time-consuming.Most nature reserves have problems such as incomplete species surveys,inaccurate taxonomic identification,and untimely updating of status data.Simple and accurate recognition of plant images can be achieved by applying convolutional neural network technology to explore the best network model.Taking 24 typical desert plant species that are widely distributed in the nature reserves in Xinjiang Uygur Autonomous Region of China as the research objects,this study established an image database and select the optimal network model for the image recognition of desert plant species to provide decision support for fine management in the nature reserves in Xinjiang,such as species investigation and monitoring,by using deep learning.Since desert plant species were not included in the public dataset,the images used in this study were mainly obtained through field shooting and downloaded from the Plant Photo Bank of China(PPBC).After the sorting process and statistical analysis,a total of 2331 plant images were finally collected(2071 images from field collection and 260 images from the PPBC),including 24 plant species belonging to 14 families and 22 genera.A large number of numerical experiments were also carried out to compare a series of 37 convolutional neural network models with good performance,from different perspectives,to find the optimal network model that is most suitable for the image recognition of desert plant species in Xinjiang.The results revealed 24 models with a recognition Accuracy,of greater than 70.000%.Among which,Residual Network X_8GF(RegNetX_8GF)performs the best,with Accuracy,Precision,Recall,and F1(which refers to the harmonic mean of the Precision and Recall values)values of 78.33%,77.65%,69.55%,and 71.26%,respectively.Considering the demand factors of hardware equipment and inference time,Mobile NetworkV2 achieves the best balance among the Accuracy,the number of parameters and the number of floating-point operations.The number of parameters for Mobile Network V2(MobileNetV2)is 1/16 of RegNetX_8GF,and the number of floating-point operations is 1/24.Our findings can facilitate efficient decision-making for the management of species survey,cataloging,inspection,and monitoring in the nature reserves in Xinjiang,providing a scientific basis for the protection and utilization of natural plant resources. | LI Jicai SUN Shiding JIANG Haoran TIAN Yingjie XU Xiaoliang | 2022 | Journal of Arid Land2022，14，12： | 2 |
| 4 | The effects of two free-floating plants (Eichhornia crassipes and Pistia stratiotes) on the burrow morphology and water quality characteristics of pond loach (Misgurnus anguillicaudatus) habitat显示文摘Loach exhibit conspicuous drilling behaviors in the mud of shallow waters,yet their burrow morphology and the factors affecting this behavior have received little attention.We characterized the burrow morphology and water quality of the pond loach Misgurnus anguillicaudatus in three scenarios:in tanks without plants,tanks with the free-floating plant water hyacinth Eichhornia crassipes,and tanks with water lettuce Pistia stratiotes.Water hyacinth effectively removed water TN,COD,NO3-N and NH4-N,and water lettuce removed water TP and NH4-N.Water hyacinth and water lettuce markedly reduced water turbidity and DO,increased TOC and EC.Water hyacinth purified water more effectively than water lettuce,providing a suitable habitat for loach feeding,living and burrowing.The burrow structures were V-shaped,Y-shaped,inverted L-shaped,or complicated dendritic networks composed of multiple V shapes.The hyacinth treatment was characterized by the greatest burrow volume,length,depth,and structural complexity,but the opening size was reduced by dense root mat coverage.Burrows in the water lettuce treatment were characterized by intermediate volume,length,branches and sinuosity,but they had the largest opening and pit size.The control treatment had a flat bottom with the smallest,shortest burrows.This study indicates that free-floating plants improve habitat suitability and change burrow morphology and may be used to improve loach breeding methods。 | Jinqing Wang Guihua Fu Weiyue Li Ying Shi Jicai Pang Qiang Wang Weiguang Lü Change Liu Jiansheng Liu | 2018 | Aquaculture and Fisheries2018，3，1： | 2 |
| 5 | Additive manufacturing of a high-strength ZrC-SiC and TC4 gradient structure based on a combination of laser deposition technique and brazing显示文摘A ZrC-SiC and TC4 gradient structure(ZTGS)was additively manufactured through the laser deposition technique and brazing process.The research results indicated that SiC-reinforced TC4-based gradient layers could be obtained on the TC4 surface by laser deposition.ZrC-SiC and TC4 coated with gradient layers were brazed using an AgCuTi filler to fabricate the ZTGS.The effects of the gradient structure and brazing parameters on the ZTGS strength were investigated.With an increase in Layer II and Layer III thickness,the ZTGS shear strength increased.The brazing temperature and holding time affected the ZTGS shear strength by controlling the formation and distribution of the Cu4Ti phase in the brazing zone.The strengthening mechanism of the ZTGS was revealed by analyzing the residual stress distribution in the ZTGS.Compressive residual stress was formed in ZrC-SiC adjacent to the TC4 substrate or the deposited gradient layer,which was found to negatively affect the properties of the ZTGS.The increase in gradient layer thickness reduced the maximum residual stress in ZrC-SiC,and the effect of Layer III on the residual stress was more significant than that of Layer II.The calculated residual stress evolution matched the ZTGS property values well,revealing the strengthening mechanism. | Qian Wang Junmiao Shi Lixia Zhang Jiangtao Xiong Jinglong Li Ninshu Ma Jicai Feng | 2021 | Journal of Materiomics2021，7，4： | 2 |
| 6 | Vacuum diffusion bonding of TiB2 cermet to TiAl-based alloys 显示文摘 | Li Zhuoran Feng Jicai Cao Jian | 2004 | Materials Science and Technology2004，20，12： | 1 |
| 7 | Atomic-scale structural and chemical evolution of Li3V2(PO4)3 cathode cycled at high voltage window显示文摘Here,by using atomically resolved scanning transmission electron microscopy and electron energy loss spectroscopy,we investigate the structural and chemical evolution of Li3V2(PO4)3 (LVP) upon the high-voltage window (3.0-4.8 V).We find that the valence of vanadium gradually increases towards the core corresponding to the formation of electrochemically inactive Li3-xV2(PO4)3 (L3-xVP) phases.These Li-deficient phases exhibit structure distortion with superstructure stripes,likely caused by the migration of the vanadium,which can slow down the lithium ion diffusion or even block the diffusion channels.Such kinetic limitations lead to the formation of Li-deficient phase along with capacity loss.Thus,the LVP continuously losses of electrochemical activity and Li-deficient phases gradually grow from the particle core towards the surface during cycling.After 500 cycles,the thickness of active LVP layer decreases to be - 5-20 nm.Moreover,the micromorphology and chemical composition of solid electrolyte interphase (SEI) have been investigated,indicating the thick SEI film also contributes to the capacity loss.The present work reveals the structural and chemical evolution in the cycled electrode materials at an atomic scale,which is essential to understand the voltage fading and capacity decaying of LVP cathode. | Shulin Chen Jian Zou Yuehui Li Ning Li Mei Wu Jinghuang Lin Jingmin Zhang Jian Cao Jicai Feng Xiaobin Niu Jianming Bai Junlei Qi Peng Gao Liping Wang Hong Li | 2019 | Nano Research2019，12，7： | 1 |
| 8 | Finite element model- ing of hydrogen diffusion in fusion zone of HQ130 high strength steel显示文摘 | Li Yajiang Wang Juan Feng Jicai | 2005 | Journal of Materials Processing Technology2005，161，： | 1 |
| 9 | Diffusion bonding of tin-broze-Ni-steel显示文摘 | Zhang Jiuhai Feng Jicai | 1999 | Welding Technology1999，，2： | 1 |
| 10 | Preparation of TiO2 Nanoflakes and Their Influence on Lithium Ion Battery Storage Performance显示文摘 | LI Yi HAN Xiangbo LIANG Jicai LENG Xuning YE Kaiqi HOU Changmin YU Kaifeng | 2015 | Chemical Research in Chinese Universities2015，31，3： | 1 |
| 11 | Cu-Cu low-temperature diffusion bonding by spark plasma sintering:Void closure mechanism and mechanical properties显示文摘In this study,combining the single point diamond turning(SPDT)and spark plasma sintering(SPS),we achieved high-strength diffusion bonding of copper at an ultra-low temperature of 202℃(0.35 T_(m),T_(m):absolute temperature of the melting point).Additionally,the closure mechanism of interfacial micro-and nano-voids during the Cu-Cu SPS diffusion bonding is systematically revealed for the first time.For micro-voids,the pulsed current is found to induce additional diffusion flux and plastic deformation,thereby facilitating the void closure.Molecular dynamics(MD)simulation revealed that at the atomic scale,high-energy Cu atoms induced by the pulsed current can significantly promote the diffusion of low-energy atoms in their vicinity and accelerate the void closure.This study also proposes a novel“evaporation-deposition”nano-void closure mechanism for the previously unstudied nano-void closure process.The results show that the synergistic effect of the pulsed current and nanoscale surface rough-ness can significantly improve joint strength.At a low temperature of 405℃(0.5 T_(m)),on combining the computerized numerical control(CNC)turning and SPS diffusion bonding,the joint strength can reach 212 MPa,while that for the joint obtained by traditional hot pressing diffusion bonding at the same tem-perature is only 47 MPa.We obtained an ultra-high joint strength of 271 MPa using the combined process of SPDT and SPS diffusion bonding at an ultra-low temperature of 202℃(0.35 T_(m)),which is approximately 600℃ lower than the traditional diffusion bonding process temperature of 800℃(0.79 T_(m)).To sum up,this study provides a novel method and theoretical support for realizing low-temperature high-strength diffusion bonding. | Wendi Li Yuxin Liang Yang Bai Tiesong Lin Bangsheng Li Jicai Feng | 2023 | Journal of Materials Science & Technology2023，，8： | 1 |
| 12 | Interface structure and formation mechanism of diffusion-bonded SiC/TiAl joint显示文摘 | Liu Huijie Feng Jicai Qian Yiyu Li Zhuoran | 1999 | Journal of Materials Science Letters1999，，13： | 1 |
| 13 | Interface structure and formation mechanism of diffusion-bonded SiC/TiAl joint显示文摘 | Liu Huijie Feng Jicai Qian Yiyu Li Zhuoran | 1999 | Journal of Materials Science Letters1999，，13： | 1 |
| 14 | Multifocus image fusion using phase congruency显示文摘 | Zhan Kun Li Qiaoqiao Teng Jicai | 2015 | Journal of Electronic Imaging2015，24，03： | 1 |
| 15 | Microstructure evolution and reaction mechanism during reactive joining of TiAl intermetallic to TiC cermet using Ti - Al - C - Ni interlayer显示文摘 | Feng Jicai Cao Jian Li Zhuoran | 2007 | Journal of Alloys and Compounds2007，436，12： | 1 |
| 16 | Generation of low-cadmium rice germplasms via knockout of OsLCD using CRISPR/Cas9显示文摘The OsLCD gene,which has been implicated in cadmium (Cd) accumulation in rice,might be a useful target for CRISPR/Cas9 editing.However,the effects of Os LCD gene editing on Cd accumulation,plant growth,and yield traits remain unknown.Here,we used CRISPR/Cas9to generate oslcd single mutants from indica and japonica rice cultivars.We also generated osnramp5 single mutants and oslcd osnramp5 double mutants in the indica background.When grown in Cd-contaminated paddy soils,all oslcd single mutants accumulated less Cd than the wild types (WTs).Consistent with this,oslcd single mutants grown in Cd-contaminated hydroponic culture accumulated significantly less Cd in the shoots as compared to WTs.This decrease in accumulation probably resulted from the reduction of Cd translocation under Cd stress.Oxidative damage also decreased,and plant growth increased in all oslcd single mutant seedlings as compared to WTs in the presence of Cd.Plant growth and most yield traits,as well essential element concentrations in rice seedling shoots,brown rice,and rice straw,were similar between oslcd single mutants and WTs.In the presence of Cd,Cd concentrations in the brown rice and shoots of oslcd osnramp5 double mutants were significantly decreased compared with WTs as well as osnramp single mutants.Our results suggested that OsL CD knockout may reduce Cd accumulation alone or in combination with other knockout mutations in a variety of rice genotypes;unlike Os Nramp5 mutations,Os LCD knockout did not reduce essential element contents.Therefore,Os LCD knockout might be used to generate low-Cd rice germplasms. | Huamei Chen Rong Ye Ying Liang Shuchang Zhang Xiulian Liu Chongjun Sun Fangbai Li Jicai Yi | 2023 | Journal of Environmental Sciences2023，，4： | 1 |
| 17 | CO_2 solubility in aqueous solutions of N-methyldiethanolamine+piperazine by electrolyte NRTL model显示文摘Accurate modeling of the solubility behavior of CO_2 in the aqueous alkanolamine solutions is important to design and optimization of equipment and process. In this work, the thermodynamics of CO_2 in aqueous solution of N-methyldiethanolamine(MDEA) and piperazine(PZ) is studied by the electrolyte non-random two liquids(NRTL) model. The chemical equilibrium constants are calculated from the free Gibbs energy of formation, and the Henry's constants of CO_2 in MDEA and PZ are regressed to revise the value in the pure water. New experimental data from literatures are added to the regression process. Therefore, this model should provide a comprehensive thermodynamic representation for the quaternary system with broader ranges and more accurate predictions than previous work. Model results are compared to the experimental vapor-liquid equilibrium(VLE), speciation and heat of absorption data, which show that the model can predict the experimental data with reasonable accuracy. | Jicai Huang Maoqiong Gong Xueqiang Dong Xiaodong Li Jianfeng Wu | 2016 | Science China Chemistry2016，59，3： | 1 |
| 18 | Microstructure and fracture properties of reaction-assisted diffusion bonding of TiAl intermetallic with Al/Ni multilayer foils显示文摘 | Cao Jian Feng Jicai Li Zhuoran | 2008 | Journal of Alloys and Compounds2008，466，12： | 1 |
| 19 | First-principles study of the growth and diffusion of B and N atoms on the sapphire surface with h-BN as the buffer layer显示文摘Currently,the preparation of large-size and high-quality hexagonal boron nitride is still an urgent problem.In this study,we investigated the growth and diffusion of boron and nitrogen atoms on the sapphire/h-BN buffer layer by first-principles calculations based on density functional theory.The surface of the single buffer layer provides several metastable adsorption sites for free B and N atoms due to exothermic reaction.The adsorption sites at the ideal growth point for B atoms have the lowest adsorption energy,but the N atoms are easily trapped by the N atoms on the surface to form N-N bonds.With the increasing buffer layers,the adsorption process of free atoms on the surface changes from exothermic to endothermic.The diffusion rate of B atoms is much higher than that of the N atoms thus the B atoms play a major role in the formation of B-N bonds.The introduction of buffer layers can effectively shield the negative effect of sapphire on the formation of B-N bonds.This makes the crystal growth on the buffer layer tends to two-dimensional growth,beneficial to the uniform distribution of B and N atoms.These findings provide an effective reference for the h-BN growth. | Jianyun Zhao Xu Li Ting Liu Yong Lu Jicai Zhang | 2021 | Journal of Semiconductors2021，42，8： | 1 |
| 20 | Group screening for ultra-high-dimensional feature under linear model显示文摘Ultra-high-dimensional data with grouping structures arise naturally in many contemporary statistical problems,such as gene-wide association studies and the multi-factor analysis-of-variance(ANOVA).To address this issue,we proposed a group screening method to do variables selection on groups of variables in linear models.This group screening method is based on a working independence,and sure screening property is also established for our approach.To enhance the finite sample performance,a data-driven thresholding and a two-stage iterative procedure are developed.To the best of our knowledge,screening for grouped variables rarely appeared in the literature,and this method can be regarded as an important and non-trivial extension of screening for individual variables.An extensive simulation study and a real data analysis demonstrate its finite sample performance. | Yong Niu Riquan Zhang Jicai Liu Huapeng Li | 2020 | Statistical Theory and Related Fields2020，4，1： | 1 |
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