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| 1 | An Accurate and Real-time Method of Self-blast Glass Insulator Location Based on Faster R-CNN and U-net with Aerial Images显示文摘This paper proposes a new deep learning framework for the location of broken insulators(in particular the self-blast glass insulator)in aerial images.We address the broken insulators location problem in a low signal-noise-ratio(SNR)setting.We deal with two modules:1)object detection based on Faster R-CNN,and 2)classification of pixels based on U-net.For the first time,our paper combines the above two modules.This combination is motivated as follows:Faster R-CNN is used to improve SNR,while the U-net is used for classification of pixels.A diverse aerial image set measured by a power grid in China is tested to validate the proposed approach.Furthermore,a comparison is made among different methods and the result shows that our approach is accurate in real time. | Zenan Ling Dongxia Zhang Robert C.Qiu Zhijian Jin Yuhang Zhang Xing He Haichun Liu | 2019 | CSEE Journal of Power and Energy Systems2019，5，4： | 22 |
| 2 | Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll-pitch-yaw spherical wrist显示文摘The demand for redundant hydraulic manipulators that can implement complex heavy-duty tasks in unstructured areas is increasing;however,current manipulator layouts that remarkably differ from human arms make intuitive kinematic operation challenging to achieve.This study proposes a seven-degree-of-freedom(7-DOF)redundant anthropomorphic hydraulically actuated manipulator with a novel roll-pitch-yaw spherical wrist.A hybrid series-parallel mechanism is presented to achieve the spherical wrist design,which consists of two parallel linear hydraulic cylinders to drive the yaw/pitch 2-DOF wrist plate connected serially to the roll structure.Designed as a 1R£RRR-1S£U mechanism(“R”,“P”,“S”,and“U”denote revolute,prismatic,spherical,and universal joints,respectively;the underlined letter indicates the active joint),the 2-DOF parallel structure is partially decoupled to obtain simple forward/inverse kinematic solutions in which a closed-loop subchain“R£RR”is included.The 7-DOF manipulator is then designed,and its third joint axis goes through the spherical center to obtain closed-form inverse kinematic computation.The analytical inverse kinematic solution is drawn by constructing self-motion manifolds.Finally,a physical prototype is developed,and the kinematic analysis is validated via numerical simulation and test results. | Min CHENG Zenan HAN Ruqi DING Junhui ZHANG Bing XU | 2021 | Frontiers of Mechanical Engineering2021，16，4： | 5 |
| 3 | Ultrathin, flexible, and high-strength Ni/Cu/metallic glass/Cu/Ni composite with alternate magneto-electric structures for electromagnetic shielding显示文摘Electromagnetic interference(EMI)shielding materials with ultrathin,flexible,superior mechanical and thermal management properties are highly desirable for smart and wearable electronics.Here,ultrathin and flexible Ni/Cu/metallic glass/Cu/Ni(Ni/Cu/MG)multilayer composite with alternate magnetic and electrical structures was designed via facial electroless plating of Cu and Ni on an Fe-based metallic glass.The resultant 0.02 mm-thick Ni/Cu/MG composite displays a superior EMI shielding effectiveness(EMI SE)of 35 dB and a great EMI SE/t of 1750 dB/mm,which is greater than those of composites with monotonous multilayer or homogeneous structures.The improved EMI SE originates from the massive ohmic losses,the enhanced internal reflection/absorption,and the abundant interfacial polarization loss.Particularly,Ni/Cu/MG exhibits a high tensile strength of up to 1.2 GPa and outstanding mechanical stability,enabling the EMI SE remains unchanged after 10,000 times of bending.Moreover,Ni/Cu/MG has excellent Joule heating characteristics and thermal stability,which is very suitable for heating components of wearable hyperthermia devices. | Zenan Ma Jiawei Li Jijun Zhang Aina He Yaqiang Dong Guoguo Tan Mingqiang Ning Qikui Man Xincai Liu | 2021 | Journal of Materials Science & Technology2021，，22： | 3 |
| 4 | Predicting the Transition between Upper and Lower Bainite via a Gibbs Energy Balance Approach显示文摘The transition temperature between upper bainite and lower bainite is calculated with an extended Gibbs energy balance model, which is able to quantitatively describe the evolution of carbon supersaturation within bainitic ferrite sheaves during the entire thickening process. The nucleation rate of intra-lath cementite precipitation on a dislocation is calculated based on of the degree of carbon supersaturation.Upper bainite and lower bainite are thus distinguished by the effective nucleation density and therefore a numerical criterion can be set to define the transition. The model is applied to Fe-xC-1Mn/2Mn/1 Mo ternary alloys. Results show that the transition temperature increases with bulk carbon content at lower carbon concentration but decreases in the higher carbon region. This prediction agrees very well with the experimental observations in Mn and Mo alloyed systems. Moreover, the highest transition temperature and the carbon content at which it occurs in the Fe-xC-2Mn system are in good agreement with reported experimental data. The inverse 'V' shaped character of the carbon concentration–transition temperature curve indicates two opposite physical mechanisms operating at the same time. An analysis is carried out to provide an explanation. | Zenan Yang Wei Xu Zhigang Yang Chi Zhang Hao Chen Sybrand van der Zwaag | 2017 | Journal of Materials Science & Technology2017，33，12： | 2 |
| 5 | A multi-step induced strategy to fabricate core-shell Pt-Ni alloy as symmetric electrocatalysts for overall water splitting显示文摘Devising an electrocatalyst with brilliant efficiency and satisfactory durability for hydrogen production is of considerable demand,especially for large-scale application.Herein,we adopt a multi-step consequential induced strategy to construct a bifunctional electrocatalyst for the overall water splitting.Graphene oxide(GO)was used as a carbon matrix and in situ oxygen source,which was supported by the octahedral PtNi alloy to form the PtxNiy-GO precursor.When calcinating in Ar atmosphere,the oxygen in GO induced the surface segregation of Ni from the PtNi octahedron to form a core-shell structure of Ptx@Niy.Then,the surface-enriched Ni continuously induced the reformation of C in reduced graphene oxide(rGO)to enhance the degree of graphitization.This multi-step induction formed a nanocatalyst Pt_(x)@Ni_(y)-rGO which has very high catalytic efficiency and stability.By optimizing the feeding ratio of PtNi(Pt:Ni=1:2),the electrolytic overall water splitting at 10 mA·cm^(-2) can be driven by an electrolytic voltage of as low as 1.485 V,and hydrogen evolution reaction(HER)only needs an overpotential of 37 mV in 1.0 M KOH aqueous solution.Additionally,the catalyst exhibited consistent existence form in both HER and oxygen evolution reaction(OER),which was verified by switching the anode and cathode of the cell in the electrolysis of water.This work provides a new idea for the synthesis and evaluation of the bifunctional catalysts for water splitting. | Wenjuan Xu Jinfa Chang Yinggang Cheng Hongqi Liu Jifan Li Yongjian Ai Zenan Hu Xinyue Zhang Yiming Wang Qionglin Liang Yang Yang Hongbin Sun | 2022 | Nano Research2022，15，2： | 1 |
| 6 | Interaction of nano-SiO2with portlandite at interface between hardened cement paste and aggregate显示文摘 | ZHANG Zenan KONG Deyu | 2007 | Constr Build Mater2007，21，3： | 1 |
| 7 | Winter wheat leaf area index inversion by the genetic algorithms neural network model based on SAR data显示文摘The leaf area index(LAI)is an important agroecological physiological parameter affecting vegetation growth.To apply the genetic algorithms neural network model(GANNM)to the remote sensing inversion of winter wheat LAI throughout the growth cycle and based on GaoFen-3 Synthetic aperture radar(GF-3 SAR)images and GaoFen-1 Wide Field of View(GF-1 WFV)images,the Xiangfu District in the east of Kaifeng City,Henan Province,was selected as the testing region.Winter wheat LAI data from five growth stages were combined,and optical and microwave polarization decomposition vegetation index models were used.The backscattering coefficient was extracted by modified water cloud model(MWCM),and the LAI was obtained by MWCM inversion as input factors to construct GANNM to invert LAI.The root mean square error(RMSE)and determination coefficient(R2)were used as evaluation indicators of the model.The fitting accuracy of winter wheat LAI in five growth stages by GANNM inversion was better than that of the BP neural network model;the R2 was higher than 0.8,and RMSE was lower than 0.3,indicating that the model could accurately invert the growth status of winter wheat in five growth stages. | Xiaoping Lu Xiaoxuan Wang Xiangjun Zhang Jun Wang Zenan Yang | 2022 | International Journal of Digital Earth2022，15，1： | 1 |
| 8 | A comparative study on the pozzolanic activity between nano-SiO2 and silica fume显示文摘 | Ye Qing Ph D Zhang Zenan Sheng Li Chen Rongshen | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，3： | 1 |
| 9 | A comparative study on the pozzolanic activity between nano-SiO2 and silica fume显示文摘 | Ye Qing Ph D Zhang Zenan Sheng Li Chen Rongshen | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，3： | 1 |
| 10 | A comparative study on the pozzolanic activity between nano-SiO2 and silica fume显示文摘 | Ye Qing Ph D Zhang Zenan Sheng Li Chen Rongshen | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，3： | 1 |
| 11 | A comparative study on the pozzolanic activity between nano-SiO2 and silica fume显示文摘 | Ye Qing Ph D Zhang Zenan Sheng Li Chen Rongshen | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，3： | 1 |
| 12 | Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume显示文摘 | Ye Qing Zhang Zenan Kong Deyu | 2007 | Construction and Building Materials2007，21，3： | 1 |
| 13 | High-performance all-solution-processed inverted quantum dot light-emitting diodes enabled by water treatment显示文摘All-solution-processed inverted quantum dot(QD)light-emitting diodes(QLEDs)with transparent bottom cathodes can be directly connected to the n-type thin-film transistors,offering a feasible solution for low-cost active matrix-driven QD displays.However,the subsequent solution-deposition of the hole-transporting layer destroys the underneath QD films,resulting in largely deteriorated device performance.Various strategies have been implemented to prevent QD film from dissolution,but all at a heavy cost of device performance suffering from either reduced efficiency or increased driving voltage.Here,a facile and effective water-treatment approach for QD film to fabricate inverted QLEDs through all solution processing is reported.The water treatment substitutes the long-chain oleate ligands with hydroxyl groups,resulting in significantly improved non-polar solvent resistance of the QD films.Importantly,the QD films reserve their excellent photoluminescence efficiency after water treatment.With the water-treated QD film as the emissive layer,all-solution-processed inverted red QLED with a peak external quantum efficiency of 19.6%,a turn-on voltage of 1.8 V,and a T50 operational lifetime of 150,000 h at 100 cd·m^(-2) was achieved.Furthermore,efficient and low-voltage-driven green and blue QLEDs can also be prepared with this method.This work provides a feasible strategy for the fabrication of high-performance all-solution-processed inverted QLEDs,paving the way toward achieving QLEDs by all ink-jet printing. | Qianqing Hu Junjie Si Desui Chen Xiaoming Hao Rui Xu Yihang Du Zhuopeng Du Xinquan Gong Hong Zhao Peiqing Cai Qi Ai Xin Yao Yu Yan Zenan Zhang Muzhi Cai Wei Liu Yongyin Kang Zugang Liu | 2023 | Nano Research2023，16，7： | 0 |
| 14 | Molecular Mechanism of Zhizi Ganjiang Decoction in Regulating Liver Cirrhosis Based on BATMAN-TCM Platform显示文摘[Objectives]To explore the molecular mechanism of Zhizi Ganjiang Decoction in the treatment of liver cirrhosis based on the network pharmacology.[Methods]The BATMAN-TCM server was used to predict the potential targets of Zhizi Ganjiang Decoction,and the GeneCards database searched for targets related to liver cirrhosis;Cytoscape 3.5.1 software was used to construct compound-cirrhosis target interaction network and protein interaction network;then gene ontology(GO)enrichment analysis,Reactome pathway enrichment analysis,and KEGG-based biological pathway enrichment analysis were performed.[Results]The compound-disease-target network of Zhizi Ganjiang Decoction was constructed.The PPI network of Zhizi Ganjiang Decoction targets constructed based on String contained 130 nodes and 689 interaction relationships.The key nodes mainly involved nuclear hormone receptor-like domain superfamily and ligand binding domain,serpentine type 7TM GPCR chemoreceptor and chemoreceptor Srx,rhodopsin family transmembrane receptors,zinc finger NHR/GATA type nuclear hormone receptors and ligand binding domains,PI3-kinase family p85 binding domain,phosphoinositide(PI)3-kinase catalytic domain and other categories.GO enrichment analysis pathway related entries mainly involved steroid hormone receptor activity,nuclear receptor activity,transcription factor activity,direct ligands regulation sequence-specific DNA binding,G protein-coupled amine receptor activity,steroid binding,catecholamine binding,neurotransmitter receptor activity,adrenergic receptor activity,ammonium ion binding,and oxidoreductase activity,etc.KEGG channel analysis mainly involved neuroactive ligand-receptor interaction,aldosterone regulates sodium reabsorption,regulates lipolysis in adipocytes,regulates inflammatory mediators of TRP channels,tyrosine metabolism,calcium signaling pathway,cAMP signaling pathway,and nonalcoholic fatty liver diseases.[Conclusions]The research results suggest that Zhizi Ganjiang Decoction regulates the process of liver cirrhosis mainly through aldosterone regulation of sodium reabsorption,regulation of lipolysis in adipocytes,regulation of inflammatory mediators of TRP channels,calcium signaling pathways,and nonalcoholic fatty liver diseases.This reflects the multi-target and holistic action characteristics of the Chinese herbal compounds,and is expected to provide new ideas for further research on the molecular mechanism of Zhizi Ganjiang Decoction. | Mingchen CAO Enze LI Zhiwei YANG Yanlin SHAO Fangang MENG Zenan ZHANG Wenjing LI Mengxiang FANG Yuefen LIU | 2023 | Medicinal Plant2023，14，2： | 0 |
| 15 | Fabrication of patterned transparent conductive glass via laser metal transfer for efficient electrical heating and antibacteria显示文摘Vapor deposition and three-dimensional(3D)printing technology are considered to be conventional methods to achieve patterned metal film preparation through the assistance of masks and high temperature.Therefore,there are still some challenges in fabricating metal films in template-free and normal temperature environment.In this work,we report a flexible and rapid laser metal transfer(LMT)technique for fabricating the various metal films(Cu,Ni,Sn,Al,Fe,and Ag)with different patterns without templates on arbitrary substrates(glass,polyimide(PI)films,and aluminum nitride(AlN)ceramic).Especially,the obtained transparent conductive glass displays high transmittance(more than 90%)and adjustable resistances(≈5Ω).According to the Joule effect,the interface resistance between Cu particles and copper oxide coating produces the high temperature approximately 280℃ at 2 V in a short time(≈60 s)and remains stable at 120℃ over 12 h.At last,the multifunctional glass with Cu patterns also shows excellent bactericidal activity(≈95%).This work demonstrates that laser metal transfer is an exceeding effective means of fabricating the micro/nano structures with potential applications in functional devices. | Xiaoyan Liu Ting Zhang Mengchen Xu Yang Li Haiqing Wang Yuke Chen Xuzihan Zhang Zenan Wang Xiaoyan Li Weijia Zhou Hong Liu | 2024 | Nano Research2024，17，3： | 0 |
| 16 | Enhancement of T cell infiltration via tumor-targeted Th9 cell delivery improves the efficacy of antitumor immunotherapy of solid tumors显示文摘Insufficient infiltration of T cells severely compromises the antitumor efficacy of adoptive cell therapy(ACT)against solid tumors.Here,we present a facile immune cell surface engineering strategy aiming to substantially enhance the anti-tumor efficacy of Th9-mediated ACT by rapidly identifying tumor-specific binding ligands and improving the infiltration of infused cells into solid tumors.Non-genetic decoration of Th9 cells with tumor-targeting peptide screened from phage display not only allowed precise targeted ACT against highly heterogeneous solid tumors but also substantially enhanced infiltration of CD8+T cells,which led to improved antitumor outcomes.Mechanistically,infusion of Th9 cells modified with tumor-specific binding ligands facilitated the enhanced distribution of tumor-killing cells and remodeled the immunosuppressive microenvironment of solid tumors via IL-9 mediated immunomodulation.Overall,we presented a simple,cost-effective,and cell-friendly strategy to enhance the efficacy of ACT against solid tumors with the potential to complement the current ACT. | Tao Chen Yucheng Xue Shengdong Wang Jinwei Lu Hao Zhou Wenkan Zhang Zhiyi Zhou Binghao Li Yong Li Zenan Wang Changwei Li Yinwang Eloy Hangxiang Sun Yihang Shen Mohamed Diaty Diarra Chang Ge Xupeng Chai Haochen Mou Peng Lin Xiaohua Yu Zhaoming Ye | 2023 | Bioactive Materials2023，，5： | 0 |
| 17 | Predicting recurrence in osteosarcoma via a quantitative histological image classifier derived from tumour nuclear morphological features显示文摘Recurrence is the key factor affecting the prognosis of osteosarcoma.Currently,there is a lack of clinically useful tools to predict osteosarcoma recurrence.The application of pathological images for artificial intelligence‐assisted accurate prediction of tumour out-comes is increasing.Thus,the present study constructed a quantitative histological image classifier with tumour nuclear features to predict osteosarcoma outcomes using haema-toxylin and eosin(H&E)‐stained whole‐slide images(WSIs)from 150 osteosarcoma patients.We first segmented eight distinct tissues in osteosarcoma H&E‐stained WSIs,with an average accuracy of 90.63%on the testing set.The tumour areas were auto-matically and accurately acquired,facilitating the tumour cell nuclear feature extraction process.Based on six selected tumour nuclear features,we developed an osteosarcoma histological image classifier(OSHIC)to predict the recurrence and survival of osteo-sarcoma following standard treatment.The quantitative OSHIC derived from tumour nuclear features independently predicted the recurrence and survival of osteosarcoma patients,thereby contributing to precision oncology.Moreover,we developed a fully automated workflow to extract quantitative image features,evaluate the diagnostic values of feature sets and build classifiers to predict osteosarcoma outcomes.Thus,the present study provides a novel tool for predicting osteosarcoma outcomes,which has a broad application prospect in clinical practice. | Zhan Wang Haoda Lu Yan Wu Shihong Ren Diarra mohamed Diaty Yanbiao Fu Yi Zou Lingling Zhang Zenan Wang Fangqian Wang Shu Li Xinmi Huo Weimiao Yu Jun Xu Zhaoming Ye | 2023 | CAAI Transactions on Intelligence Technology2023，8，3： | 0 |
| 18 | Observation of Internal Tides in the Qiongzhou Strait by Coastal Acoustic Tomography显示文摘In this study,power spectral density and inverse analyses were performed to obtain the frequency characteristics and spatial distribution of temperature in the Qiongzhou Strait using reciprocal sound transmission data obtained in a coastal acoustic tomo-graphy experiment conducted in 2013.The results reveal three dominant types of internal tides(diurnal,semidiurnal,and terdiurnal).Spectral analysis of the range-average temperature deviation along the northern and southern transmission paths shows that along the northern path,the energy of the diurnal internal tides was significantly larger than that of the semidiurnal tides.The semidiurnal internal tides,in contrast,were more pronounced along the southern path.A terdiurnal spectrum with an energy level equivalent to that of the semidiurnal internal tide was discernable for both the northern and southern paths.These three types of internal tides can also be recognized in the time variation of the zonal-average temperature deviation.The diurnal internal tides were strengthened along the northern coast,implying their westward propagation and the existence of coastally trapped effects.The other two types of internal tides,which have smaller wavelengths than the diurnal internal tides,were less resolved over the entire tomographic domain due to the insufficient resolution of the inversion.The data quality was verified to be satisfactory by error estimation. | CHEN Minmo ZHU Zenan ZHANG Chuanzheng ZHU Xiaohua LIU Zhaojun KANEKO Arata | 2021 | Journal of Ocean University of China2021，20，5： | 0 |
| 19 | Evaluation of phenanthrene removal from soil washing effluent by activated carbon adsorption using response surface methodology显示文摘Soil washing is a promising technology for the remediation of polycyclic aromatic hydrocarbons(PAH)-contaminated sites,but surfactant needs to be recovered to reduce remediation cost and avoid secondary pollution.In this study,activated carbon(AC),prepared from waste walnut shells,was applied to the adsorptive removal of phenanthrene(PHE)from synthetic soil washing effluent with Tween 80 as a model surfactant.Box-Behnken statistical experiment design(BBD)and response surface methodology(RSM)were used to investigate the influence of AC dosage,Tween 80 concentration and adsorption time,and their potential interaction effect on PHE removal.A response surface model was established based on the BBD experimental results.The goodness of fit of the model was confirmed by determination coefficient,coefficient of variation(CV)and residuals analysis.The RSM model indicates that AC dosage or adsorption time had positive effect on PHE removal while Tween 80 concentration had negative effect.The interaction effect between AC dosage and Tween 80 concentration was significant but the other two interaction effects were not.The 3D response surface plots were developed based on the RSM equation.The RSM model was validated by an additional experiment and the obtained result of PHE removal was very close to the model prediction,indicating the RSM model can effectively predict the PHE removal from soil washing effluent with activated carbon adsorption. | Zenan Wang Xin Zheng Yan Wang Heng Lin Hui Zhang | 2022 | Chinese Journal of Chemical Engineering2022，35，2： | 0 |
| 20 | Thermal and Structural Insight into Lightweight Lattice Channels for Active Cooling Technology显示文摘The active cooling technology that can reduce the combustor temperature is commonly used to protect the scramjet.In order to further improve the performance of active cooling,the structural weight reduction,cooling efficiency and stress level of the cooling channel must be considered simultaneously.In this paper,new types of lattice channels for active cooling were designed and compared with the conventional cooling channel in terms of weight reduction,thermal and structural performance.The results showed that,at the same channel height,the cooling channel with staggered lattice arrays has the optimal comprehensive performance:the weight reduction effect reaches 39.93%;the wall temperature drops significantly,and the maximum Nu number is 2.155times of the conventional channel.The flow field analysis showed that horseshoe vortices formed by the impact effect and hairpin vortices near the trailing edge are the main factors of heat transfer enhancement.The disturbed boundary layer and the excited turbulent kinetic energy also contribute much to enhance the heat transfer.In addition,due to the HTE-induced increment of metal tensile strength,the system reliability of lattice channel is better than the conventional one. | YANG Zenan LUO Xiaobo CHEN Wei JU Yinchao ZHANG Bo | 2023 | Journal of Thermal Science2023，32，3： | 0 |
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