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| 1 | Relationship Between Urban Road Traffic Characteristics and Road Grade Based on a Time Series Clustering Model: A Case Study in Nanjing, China显示文摘With the increasing number of vehicles in large-and medium-sized cities challenges in urban traffic management, control, and road planning are being faced. Taxi GPS trajectory data is a novel data source that can be used to study the potential dynamic traffic characteristics of urban roads, and thus identify locations that show a notable lack of road planning. Considering that road traffic characteristics on their own are insufficient for a comprehensive understanding of urban traffic, we develop a road traffic characteristic time series clustering model to analyze the relationship between urban road traffic characteristics and road grade based on existing taxi trajectory data. We select the main urban area of Nanjing as our study area and use the taxi trajectory data of a single month for evaluating our method. The experiments show that the clustering model exhibit good performance and can be successfully used for road traffic characteristic classification. Moreover, we analyze the correlation between traffic characteristics and road grade to identify road segments with planning designs that do not match the actual traffic demands. | WANG Jiechen WU Jiayi NI Jianhua CHEN Jie XI Changbai | 2018 | Chinese Geographical Science2018，28，6： | 5 |
| 2 | A CONSTRUCTIVE PROOF OF THE INVERSION FORMULA FOR ZONAL FUNCTIONS ON SL(2, R)显示文摘A constructive proof is given for the inversion formula for zonal functions on SL(2, R). A concretely constructed sequence of zonal drictions are proved to satisfy the inversion formula obtained by Harish-Chandra for compact supported infinitely differentiable zonal functions.Making use of the property of this sequence somehow similar to that of approxination kernels,the authors deduce that the inversion formula is true for continuous zonal functions on SL(2, R)under some condition. The classical result can be viewed as a corollary of the results here. | XIAO CHANGBAI ZHENG WEIXING SU WEIYI (Department of Mathematics, Nanjing University Nanjing 210093, China.) | 1996 | Chinese Annals of Mathematics,Series B1996，17，1： | 3 |
| 3 | Excellent ethanol sensor based on multiwalled carbon nanotube-doped ZnO显示文摘Multiwalled carbon nanotubes(MWNTs)were synthesized through CVD method,and the gas sensitive materials MWNTs/ZnO were obtained by mixing MWNTs and ZnO.The gas sensing properties of the as-prepared materials were investigated.The results show that the gas sensing properties of ZnO sensor are significantly improved by doping MWNTs.The sensitivity,response time and recovery time to 50 ppm ethanol at 260°C are 46,4 and 20 s,respectively.We also examined the selectivity of 0.1 wt%MWNTs-doped ZnO sensors to different gases.The results show that the sensor possesses an excellent selectivity to ethanol. | Hao Shan Changbai Liu Li Liu Lianyuan Wang Xiaobo Zhang Xiao Chi Xiaoqing Bo Kehong Wang | 2014 | Chinese Science Bulletin2014，59，4： | 2 |
| 4 | Synthesis and acetone gas sensing properties of α-Fe_2O_3 nanotubes显示文摘α-Fe2O3nanotubes was successfully prepared by single nozzle electrospinning method.Scanning electron microscope(SEM)was used to characterize the morphology of-Fe2O3nanotubes.The gas sensing properties of-Fe2O3nanotubes were investigated in detail.The results exhibit relatively good sensing properties to acetone at 240°C.The response and recovery times are about 3 and 5 s,respectively.The structure of nanotubes is beneficial to the gas sensing properties,which will enlarge the surface-to-volume ratio of α-Fe2O3and then be available for the transfer of gas,and thus improved the sensor performance consequentially. | SHAN Hao LIU ChangBai LIU Li WANG LianYuan LI ShouChun ZHANG XiaoBo BO XiaoQing CHI Xiao | 2013 | Science China Chemistry2013，56，12： | 2 |
| 5 | Melamine in Milk Products in China: Examining the Factors That Led to Deliberate Use of the Contaminant 显示文摘 | ] Changbai Xiu K K Klein | 2010 | Food Policy2010，35，6： | 1 |
| 6 | Highly sensitive acetone sensors based on La-doped α-Fe2O3 nanotubes显示文摘 | Hao Shan Liu Changbai Liu Li | 2013 | Sensors and Actuators B2013，184，4： | 1 |
| 7 | Microstructures and electrical responses of pure and chromium-doped CaCu 3 Ti 4 O 12 ceramics显示文摘 | Qian Zheng Huiqing Fan Changbai Long | 2011 | Journal of Alloys and Compounds2011，，1： | 1 |
| 8 | Sea-water-level prediction via combined wavelet decomposition,neuro-fuzzy and neural networks using SLA and wind information显示文摘Sea-water-level(SWL)prediction significantly impacts human lives and maritime activities in coastal regions,particularly at offshore locations with shallow water levels.Long-term SWL forecasts,which are conventionally obtained via harmonic analysis,become ineffective when nonperiodic meteorological events predominate.Artificial intelligence combined with other data-processing methods can effectively forecast highly nonlinear and nonstationary inflow patterns by recognizing historical relationships between input and output.These techniques are considerably useful in time-series data predictions.This paper reports the development of a hybrid model to realize accurate multihour SWL forecasting by combining an adaptive neuro-fuzzy inference system(ANFIS)with wavelet decomposition while using sea-level anomaly(SLA)and wind-shear-velocity components as inputs.Numerous wavelet-ANFIS(WANFIS)models have been tested using different inputs to assess their applicability as alternatives to the artificial neural network(ANN),wavelet ANN(WANN),and ANFIS models.Different error definitions have been used to evaluate results,which indicate that integrated wavelet-decomposition and ANFIS models improve the accuracy of SWL prediction and that the inputs of SLA and wind-shear velocity exhibit superior prediction capability compared to conventional SWL-only models. | Bao Wang Bin Wang Wenzhou Wu Changbai Xi Jiechen Wang | 2020 | Acta Oceanologica Sinica2020，39，5： | 1 |
| 9 | Enhanced formaldehyde-sensing properties of mixed Fe 2 O 3 –In 2 O 3 nanotubes显示文摘 | Xiao Chi Changbai Liu Li Liu Shouchun Li Haiying Li Xiaobo Zhang Xiaoqing Bo Hao Shan | 2014 | Materials Science in Semiconductor Processing2014，，： | 1 |
| 10 | Microstructures and electrical responses of pure and chromium-doped CaCu 3 Ti 4 O 12 ceramics显示文摘 | Qian Zheng Huiqing Fan Changbai Long | 2011 | Journal of Alloys and Compounds2011，，1： | 1 |
| 11 | Microstructures and wear resistance of large WC particles reinforced surface metal matrix composites produced by plasma melt injection显示文摘 | Aiguo Liu Mianhuan Guo Minhai Zhao Changbai Wang | 2007 | Surface & Coatings Technology2007，，18： | 1 |
| 12 | WC reinforced surface metal matrix composite produced by plasma melt injection显示文摘 | Minhai Zhao Aiguo Liu Mianhuan Guo Dejian Liu Zhijian Wang Changbai Wang | 2006 | Surface & Coatings Technology2006，，3： | 1 |
| 13 | Highly sensitive acetone sensors based on La-doped α-Fe 2 O 3 nanotubes显示文摘 | Hao Shan Changbai Liu Li Liu Shouchun Li Lianyuan Wang Xiaobo Zhang Xiaoqing Bo Xiao Chi | 2013 | Sensors & Actuators: B. Chemical2013，，： | 1 |
| 14 | Melamine in milk products in China: examining the factors that led to deliberate use of the contaminant 显示文摘 | XIU CHANGBAI KLEIN K K | 2010 | Food Policy2010，35，5： | 1 |
| 15 | Dimensional Variation Modeling of Aircraft Compliant Part Assembly Considering Clamping Force Change显示文摘Compliant parts are widely applied to aircraft structures.Due to the ease of deformation of compliant parts in assembly,the prediction of assembly variation is especially important for assembly quality control.A dimensional variation model considering the clamping force change in assembly is proposed based on the method of influence coefficient(MIC).First,the assembly process is decomposed into several steps including positioning,clamping,joining,and spring-back.Then,the force-displacement relationship is formulated according to the varied force conditions on the parts in each assembly step.Finally,two examples are illustrated to validate the proposed assembly variation model.The results show the impact of clamping force change is significant on the assembly variation,and the proposed model can predict the assembly variation more accurately than the referred method without clamping force correction at the over-constrained locating points of fixture. | TAN Changbai ZHANG Wei WANG Zhiguo | 2019 | Transactions of Nanjing University of Aeronautics and Astronautics2019，36，2： | 0 |
| 16 | Super-stable permittivity and low dielectric loss of(1-x)Na_(0.5)Bi_(0.5+y)TiO_(3-x)NaTaO_(3)ceramics within an ultra-wide temperature range显示文摘This work designs a new system(1-x)Na_(0.5)Bi_(0.5+y)TiO_(3-x)NaTaO_(3)with a nonstoichiometric bismuth ratio,which is used as dielectrics of ceramics capacitors.Phase structure evolution of(1-x)Na_(0.5)Bi_(0.5+y)TiO_(3-x)NaTaO_(3)is characterized using XRD,Raman and TEM.Dielectric and resistant properties of(1-x)Na_(0.5)Bi_(0.5+y)TiO_(3-x)NaTaO_(3)are investigated with increasing concentration of NaTaO_(3).With these in-vestigations,the structure and defect chemistry of(1-x)Na_(0.5)Bi_(0.5+y)TiO_(3-x)NaTaO_(3)are rationalized and their respective impact on capacitor properties are elucidated.The optimized composition 0.8Na_(0.5)Bi_(0.51)TiO_(3)-0.2NaTaO_(3)possesses an ultra-wide operating temperature range(-92e398C),in which both stable permittivity and low dielectric loss is obtained.Furthermore,the fabrication of multilayer ceramics capacitors(MLCC)based on 0.8Na_(0.5)Bi_(0.51)TiO_(3)-0.2NaTaO_(3)dielectrics is investigated.With the addition of sintering aids,0.8Na_(0.5)Bi_(0.51)TiO_(3)-0.2NaTaO_(3)could be co-fired with Ag at 910℃in air,and the low temperature co-fired ceramic(LTCC)capacitors maintain good temperature stability of permittivity and low dielectric loss in-100-352℃.Therefore,our work provides a new route for pre-paring ultra-wide operating temperature capacitors at low manufacturing costs. | Pengrong Ren Han Zhao Xin Wang Yuhui Wan Zhiyong Liu Changbai Long Fuxue Yan Till Frӧmling Gaoyang Zhao | 2023 | Journal of Materiomics2023，9，3： | 0 |
| 17 | Rottlerin plays an antiviral role at early and late steps of Zika virus infection显示文摘Infection of Zika virus(ZIKV)may cause microcephaly and other neurological disorders,while no vaccines and drugs are available.Our study revealed that rottlerin confers a broad antiviral activity against several enveloped viruses,including ZIKV,vesicular stomatitis virus,and herpes simplex virus,but not against two naked viruses(enterovirus 71 and encephalomyocarditis virus).Rottlerin does not have a direct virucidal effect on the virions,and its antiviral effect is independent of its regulation on PKCδor ATP.Both pretreatment and post-treatment of rottlerin effectively reduce the viral replication of ZIKV.The pretreatment of rottlerin disturbs the endocytosis of enveloped viruses,while the post-treatment of rottlerin acts at a late stage through disturbing the maturation of ZIKV.Importantly,administration of rottlerin in neonatal mice significantly decreased the ZIKV replication in vivo,and alleviated the neurological symptoms caused by ZIKV.Our work suggests that rottlerin exerts an antiviral activity at two distinct steps of viral infection,and can be potentially developed as a prophylactic and therapeutic agent. | Shili Zhou Quanshi Lin Changbai Huang Xiaotong Luo Xu Tian Chao Liu Ping Zhang | 2022 | Virologica Sinica2022，37，5： | 0 |
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