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| 1 | Testing and Improving the Performance of the Common Land Model:A Case Study for the Gobi Landscape显示文摘Land surface processes take place on the interface between the earth and atmosphere, exerting significant influences on the weather and climate. Correct modeling of these processes is important to numerical weather forecast and climate prediction. In order to obtain a more thorough understanding of the land surface processes over the Gobi landscape, we evaluated the performance of the Common Land Model(Co LM) at Dunhuang station in Gansu Province of China to determine whether the model formulation, driven by observational data, is capable of simulating surface fluxes over the underlying desert surface. In comparison with the enhanced observation data collected at Dunhuang station over the period 22–28 August 2008, the results showed that the surface albedo simulated by Co LM was larger than that in the observation, and the simulated surface temperature was lower than the observed. After the measured values were used to correct the surface albedo, the solar radiation absorbed by the ground surface was more consistent with the measurements. A new empirical relationship of the surface thermal exchange coefficient rah was used to modify the thermal aerodynamic impedance. The simulated soil surface temperature became significantly closer to the observed value, and the simulated surface sensible heat as well as net radiative fluxes were also improved. | Chao WANG Zhigang WEI Zhenchao LI Tiangui XIAO Xiaohang WEN | 2017 | Journal of Meteorological Research2017，31，3： | 4 |
| 2 | Identification of Cognitive Dysfunction in Patients with T2DM Using Whole Brain Functional Connectivity显示文摘Majority of type 2 diabetes mellitus(T2DM)patients are highly susceptible to several forms of cognitive impairments,particularly dementia.However,the underlying neural mechanism of these cognitive impairments remains unclear.We aimed to investigate the correlation between whole brain resting state functional connections(RSFCs)and the cognitive status in 95 patients with T2DM.We constructed an elastic net model to estimate the Montreal Cognitive Assessment(MoCA)scores,which served as an index of the cognitive status of the patients,and to select the RSFCs for further prediction.Subsequently,we utilized a machine learning technique to evaluate the discriminative ability of the connectivity pattern associated with the selected RSFCs.The estimated and chronological MoCA scores were significantly correlated with R=0.81 and the mean absolute error(MAE)=1.20.Additionally,cognitive impairments of patients with T2DM can be identified using the RSFC pattern with classification accuracy of 90.54%and the area under the receiver operating characteristic(ROC)curve(AUC)of 0.9737.This connectivity pattern not only included the connections between regions within the default mode network(DMN),but also the functional connectivity between the task-positive networks and the DMN,as well as those within the task-positive networks.The results suggest that an RSFC pattern could be regarded as a potential biomarker to identify the cognitive status of patients with T2DM. | Zhenyu Liu Jiangang Liu Huijuan Yuan Taiyuan Liu Xingwei Cui Zhenchao Tang Yang Du Meiyun Wang Yusong Lin Jie Tian | 2019 | Genomics, Proteomics & Bioinformatics2019，17，4： | 4 |
| 3 | Upconversion nanoparticles@AgBiS_(2) core-shell nanoparticles with cancer-cell-specific cytotoxicity for combined photothermal and photodynamic therapy of cancers显示文摘UCNPs@AgBiS_(2) core-shell nanoparticles that AgBiS_(2) coated on the surface of upconversion nanoparticles (UCNPs) was successfully prepared through an ion exchange reaction. The photothermal conversion efficiency of AgBiS_(2) can be improved from 14.7% to 45% due to the cross relaxation between Nd ions and AgBiS_(2). The doping concentration of Nd ions played a critical role in the production of reactive oxygen species (ROS) and enhanced the photothermal conversion efficiency. The NaYF4:Yb/Er/Nd@NaYF4:Nd nanoparticles endows strong upcon-version emissions when the doped concentration of Nd ions is 1% in the inner core, which excites the AgBiS_(2) shell to produce ROS for photodynamic therapy (PDT) of cancer cells. As a result, the as-prepared NaYF4:Yb/Er/ Nd@NaYF4:Nd@AgBiS_(2) core-shell nanoparticles showed combined photothermal/photodynamic therapy (PTT/ PDT) against malignant tumors. This work provides an alternative near-infrared light-active multimodal nano-structures for applications such as fighting against cancers. | Zhaoyou Chu Tian Tian Zhenchao Tao Juan Yang Benjin Chen Hao Chen Wanni Wang Peiqun Yin Xiaoping Xia Hua Wang Haisheng Qian | 2022 | Bioactive Materials2022，7，11： | 3 |
| 4 | Global existence theory for the two-dimensional derivative Ginzburg-Landau equation显示文摘The generalized derivative Ginzburg-Landau equation in two spatial dimensions is discussed. The existence and uniqueness of global solution are obtained by Galerkin method and by a priori estimates on the solution in H+1 -norm and H +2-norm. | Zhenchao Cao Boling Guo Bixiang Wang | 1998 | Chinese Science Bulletin1998，43，5： | 3 |
| 5 | Primary dendrite growth of Ni_3Sn intermetallic compound during rapid solidification of undercooled Ni-Sn-Ge alloy显示文摘Liquid Ni-31.7%Sn-2.5%Ge alloy was highly undercooled by up to 238 K(0.17TL) with glass fluxing and drop tube techniques.The dendritic growth velocity of primary Ni3Sn compound shows a power-law relation to undercooling and achieves a maximum velocity of 380 mm/s.The addition of Ge reduces its growth velocity as compared with the binary Ni75Sn25 alloy.A structural transition from coarse dendrites into equiaxed grains occurs once undercooling exceeds a critical value of about 125 K,which is accompanied by both grain refinement and solute trapping.The Ni3Sn intermetallic compound behaves like a normal solid solution phase showing nonfaceted growth during rapid solidification. | WANG WeiLi QIN HaiYan XIA ZhenChao WEI BingBo | 2012 | Chinese Science Bulletin2012，57，9： | 2 |
| 6 | Integrating Active Learning Strategy to the Ensemble Kernel-based Method for Protein-Protein Interaction Extraction显示文摘 | LI Lishuang HUANG Degen WANG Min JIANG Zhenchao | 2013 | Chinese Journal of Electronics2013，22，1： | 1 |
| 7 | Solute redistribution profiles during rapid solidification of undercooled ternary Co-Cu-Pb alloy显示文摘The solute redistribution and phase separation of liquid ternary Co-35%Cu-32.5%Pb immiscible alloy have been investigated using glass fluxing method.A bulk undercooling of 125 K was achieved and the macrosegregation pattern was characterized by a top Co-rich zone and a bottom Cu-rich zone.The average solute contents of the two separated zones decreased with the increase of undercooling,except for the solute Pb in Cu-rich zone.With the enhancement of undercooling,a morphological transition from dendrites into equaxied grains occurred to the primary(Co)phase in Co-rich zone.The solute redistribution of Cu in primary(Co)phase was found to depend upon both the undercooling and composition of Co-rich zone.Stokes migration is shown to be the main dynamic mechanism of droplet movement during liquid phase separation. | YAN Na WANG WeiLi XIA ZhenChao WEI BingBo | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，3： | 1 |
| 8 | Continuous high purity hydrogen generation from a syngas chemical looping 25kW th sub-pilot unit with 100% carbon capture显示文摘 | Andrew Tong Deepak Sridhar Zhenchao Sun Hyung R. Kim Liang Zeng Fei Wang Dawei Wang Mandar V. Kathe Siwei Luo Yuhao Sun Liang-Shih Fan | 2013 | Fuel2013，，： | 1 |
| 9 | Tip-induced bond weakening, tilting, and hopping of a single CO molecule on Cu(100)显示文摘The interaction between a probing tip and an adsorbed molecule can significantly impact the molecular chemical structure and even induce its motion on the surface.In this study,the tip-induced bond weakening,tilting,and hopping processes of a single molecule were investigated by sub-nanometre resolved tip-enhanced Raman spectroscopy(TERS).We used single carbon monoxide(CO)molecules adsorbed on the Cu(100)surface as a model system for the investigation.The vibrational frequency of the C−O stretching mode is always redshifted as the tip approaches,revealing the weakening of the C−O bond owing to tip−molecule interactions.Further analyses of both the vibrational Stark effect and TERS imaging patterns suggest a delicate tilting phenomenon of the adsorbed CO molecule on Cu(100),which eventually leads to lateral hopping of the molecule.While a tilting orientation is found toward the hollow site along the[110]direction of the Cu(100)surface,the hopping event is more likely to proceed via the bridge site to the nearest Cu neighbour along the[100]or[010]direction.Our results provide deep insights into the microscopic mechanisms of tip−molecule interactions and tip-induced molecular motions on surfaces at the single-bond level. | Xiaoru Dong Ben Yang Rui Zhu Ruipu Wang Yang Zhang Yao Zhang Zhenchao Dong | 2022 | Light(Advanced Manufacturing)2022，3，4： | 0 |
| 10 | Down image recognition based on deep convolutional neural network显示文摘Since of the scale and the various shapes of down in the image,it is difficult for traditional image recognition method to correctly recognize the type of down image and get the required recognition accuracy,even for the Traditional Convolutional Neural Network(TCNN).To deal with the above problems,a Deep Convolutional Neural Network(DCNN)for down image classification is constructed,and a new weight initialization method is proposed.Firstly,the salient regions of a down image were cut from the image using the visual saliency model.Then,these salient regions of the image were used to train a sparse autoencoder and get a collection of convolutional filters,which accord with the statistical characteristics of dataset.At last,a DCNN with Inception module and its variants was constructed.To improve the recognition accuracy,the depth of the network is deepened.The experiment results indicate that the constructed DCNN increases the recognition accuracy by 2.7% compared to TCNN,when recognizing the down in the images.The convergence rate of the proposed DCNN with the new weight initialization method is improved by 25.5% compared to TCNN. | Wenzhu Yang Qing Liu Sile Wang Zhenchao Cui Xiangyang Chen Liping Chen Ningyu Zhang | 2018 | Information Processing in Agriculture2018，5，2： | 0 |
| 11 | CELEBRATING SPRING FESTIVAL显示文摘Chinese New Year(Spring Festival)is drawing near,and has been a popular topic of conversation among Bejing residents in recent weeks.Beijingers have begun to prepare for this major traditional Chinese festival through activities such as shopping,and decorating their homes with spring couplets and the Chinese character'福'(fu,'good fortune'). | Wang Wei Ling Fuping(Photos) Liu Eryue(Photos) Ren Zhenchao(Photos) Wang Hongwei(Photos) Yang Jianguo(Photos) Yuan Yi(Photos) Zhou Jin(Photos) | 2021 | Beijing2021，，5： | 0 |
| 12 | Detection of abnormal hydroponic lettuce leaves based on image processing and machine learning显示文摘Accurate and fast detection of abnormal hydroponic lettuce leaves is primary technology for robotic sorting.Yellow and rotten leaves are main types of abnormal leaves in hydroponic lettuce.This study aims to demonstrate a feasibility of detecting yellow and rotten leaves of hydroponic lettuce by machine learning models,i.e.Multiple Linear Regression(MLR),K-Nearest Neighbor(KNN),and Support Vector Machine(SVM).One-way analysis of variance was applied to reduce RGB,HSV,and L*a*b*features number of hydroponic lettuce images.Image binarization,image mask,and image filling methods were employed to segment hydroponic lettuce from an image for models testing.Results showed that G,H,and a*were selected from RGB,HSV,and L*a*b*for training models.It took about 20.25 s to detect an image with 30244032 pixels by KNN,which was much longer than MLR(0.61 s)and SVM(1.98 s).MLR got detection accuracies of 89.48%and 99.29%for yellow and rotten leaves,respectively,while SVM reached 98.33%and 97.91%,respectively.SVM was more robust than MLR in detecting yellow and rotten leaves of hydroponic.Thus,it was possible for abnormal hydroponic lettuce leaves detection by machine learning methods. | Ruizhe Yang Zhenchao Wu Wentai Fang Hongliang Zhang Wenqi Wang Longsheng Fu Yaqoob Majeed Rui Li Yongjie Cui | 2023 | Information Processing in Agriculture2023，10，1： | 0 |
| 13 | Evaluation of the performance of CMIP5 and CMIP6 models in simulating the South Pacific Quadrupole-ENSO relationship显示文摘先前的观测研究表明,南太平洋四极子海温模态(SPQ)可以有效地作为ENSO的前兆信号.本文利用20个CMIP6模式及其对应的20个先前的CMIP5模式的工业化前气候模拟试验数据,评估和比较了CMIP6以及CMIP5模式对SPQ与ENSO的关系的模拟能力.结果表明,大多数CMIP5和CMIP6模式可以合理地模拟SPQ的基本特征.与早期的CMIP5模式相比,CMIP6模式能够更加真实地模拟SPQ与ENSO之间的关系.进一步分析表明,CMIP6模式模拟SPQ与ENSO关系的能力提高,是因为CMIP6模式能够更好地模拟出在副热带/热带太平洋上与SPQ相关的表面海气热力耦合过程,以及在赤道太平洋上与SPQ相关的次表层海温的异常相应. | Zhenchao Wang Lin Han Ruiqiang Ding Jianping Li | 2021 | Atmospheric and Oceanic Science Letters2021，14，4： | 0 |
| 14 | Effects of Pulsed Magnetic Field on Biochemical and Physiological Characters and Ultrastructure of Pine Wood Nematode显示文摘In this paper,we employed the pulsed magnetic field(PMF) processing to investigate the effect of different pulse rise time and treatment time on the survival,reproduction,cellulase activity and surface characteristics of the pine wood nematode (PWN).The results showed that the wider pulse and the longer treatment time were able to reduce the survival,and inhibit the cellulase activity and reproduction of PWN.The 4th instar and females had a strong resistance to the pulsed magnetic field. With pulse rise time of 10 ms and the treatment of 60 min,the adjusted mortality of PWN was 100%. After the PMF treatment,the cellulase activity of PWN increased within a short time,and then declined with the treatment time.The observation with a scanning electron micrograph(SEM) revealed that there was no significant change in morphology of PWN,but the quantity of rod-shaped bacteria carried by PWN was reduced. | Zhang Ming Song Xiaobin Zhang Xingyao Wang Zhenchao Liang Jun | 2012 | Chinese Forestry Science and Technology2012，11，3： | 0 |
| 15 | Hydrazone derivatives in agrochemical discovery and development显示文摘As a common active substructure,hydrazone has attracted increasing attention and is considered essential for pesticide discovery.It has been widely regarded as a potential insecticidal,antibacterial,antifungal,antiviral,and herbicidal agent.In this review,we highlight the pesticide versatility of hydrazone fragments and provide a comprehensive summary of the biological activity,structure-activity relationship analysis(SARs),and primary mechanism of their analogs.This profile is expected to give valuable information for discovering new pesticides. | Ya Wang Shengxin Guo Lijiao Yu Wei Zhang Zhenchao Wang Yonggui Robin Chi Jian Wu | 2024 | Chinese Chemical Letters2024，35，3： | 0 |
| 16 | Antibacterial Activity of Novel 18β-Glycyrrhetinic Hydrazide or Amide Derivatives显示文摘Through a facile structural modification on the natural bioactive ingredient 18β-glycyrrhetinic acid(GA),a series of novel GA hydrazide or amide derivatives was obtained,and their final molecular frameworks were characterized by NMR and HRMS analysis.Antibacterial bioassays revealed that some of the GA hydrazide or amide derivatives were able to suppress the growth of three tested plant pathogens.Particularly,compound 3c exhibited excellent in vitro activity against Xanthomonas oryzae pv.Oryzae(Xoo),Pseudomonas syringae pv.actinidiae(Psa),and Xanthomonas axonopodis pv.citri(Xac),providing the EC_(50) values of 5.89,16.1,and 3.64µg/mL,respectively.The data were better than those of the positive controls thiodiazole copper(92.7,77.8,and 89.9µg/mL,respectively)and bismerthiazol(31.1,125.6,and 77.4µg/mL,respectively).In addition,in vivo experiments suggested that,compared with thiodiazole copper(41.93%and 39.73%,respectively),compound 3c exerted prominently curative and protective activities against rice bacterial leaf blight at 200µg/mL with the control effects of 52.36%and 51.40%,respectively.Given these obtained results,GA hydrazide or amide derivatives could serve as the feasible leads for exploring highly bioactive substrates. | ZHANG Ling FU Yihong DING Yue MENG Jiao WANG Zhenchao WANG Peiyi | 2021 | Chemical Research in Chinese Universities2021，37，3： | 0 |
| 17 | P7C3-A20 treats traumatic brain injury in rats by inhibiting excessive autophagy and apoptosis显示文摘Traumatic brain injury is a severe health problem leading to autophagy and apoptosis in the brain.3,6-Dibromo-beta-fluoro-N-(3-methoxyphenyl)-9H-carbazole-9-propanamine(P7C3-A20)can be neuroprotective in various diseases,including ischemic stroke and neurodegenerative diseases.However,whether P7C3-A20 has a therapeutic effect on traumatic brain injury and its possible molecular mechanisms are unclear.Therefore,in the present study,we investigated the therapeutic effects of P7C3-A20 on traumatic brain injury and explored the putative underlying molecular mechanisms.We established a traumatic brain injury rat model using a modified weight drop method.P7C3-A20 or vehicle was injected intraperitoneally after traumatic brain injury.Severe neurological deficits were found in rats after traumatic brain injury,with deterioration in balance,walking function,and learning memory.Furthermore,hematoxylin and eosin staining showed significant neuronal cell damage,while terminal deoxynucleotidyl transferase mediated dUTP nick end labeling staining indicated a high rate of apoptosis.The presence of autolysosomes was observed using transmission electron microscope.P7C3-A20 treatment reversed these pathological features.Western blotting showed that P7C3-A20 treatment reduced microtubule-associated protein 1 light chain 3-Ⅱ(LC3-Ⅱ)autophagy protein,apoptosis-related proteins(namely,Bcl-2/adenovirus E1B 19-kDa-interacting protein 3[BNIP3],and Bcl-2 associated x protein[Bax]),and elevated ubiquitin-binding protein p62(p62)autophagy protein expression.Thus,P7C3-A20 can treat traumatic brain injury in rats by inhibiting excessive autophagy and apoptosis. | Zhiqing Yang Zhenchao Wang Xiaoqi Deng Lingxin Zhu Zhaomeng Song Changyu Cao Xinran Li | 2024 | Neural Regeneration Research2024，19，5： | 0 |
| 18 | Preparation and Properties of Hybrid Silane-crosslinked Sulfonated Poly(aryl ether ketone)s as Proton Exchange Membranes显示文摘A series of novel organic-inorganic hybrid proton-conducting electrolyte membranes with silane-crosslinked sulfonated poly(aryl ether ketone)(SC-SPAEK) networks was prepared via a simple procedure that includes solution casting and acid treatment. The organosilicon pendants of the silane-grafted SPAEK, which were expected to serve as coupling and crosslinking agents, were found to play a key role in the homogenous dispersion of inorganic particles and improved the performance of hybrid membranes. The hybrid membranes exhibited enhanced proton conductivity, and SC-SPAEK/TiO2-4 showed an extremely high proton conductivity of 0.1472 S/cm at 100℃. The crosslinked hybrid membranes also demonstrated good chemical resistance, oxidative stability, and mechanical properties. The crosslinked hybrid membranes with excellent comprehensive performance may be a promising material for proton exchange membrane fuel cells. | LIU Zhenchao WANG Peng HU Wei LIU Baijun | 2019 | Chemical Research in Chinese Universities2019，35，5： | 0 |
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