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| 1 | Zircon U-Pb dating of basement gneisses in the super-large Bayan Obo REE-Fe-Nb deposit, Inner Mongolia显示文摘Zircon U-Pb ages have been determined for basement gneisses in the Bayan Obo REE-Fe-Nb deposit. On the U-Pb concordia diagram data of three samples yield up-per intercept ages of 1948-1917 Ma. Thus, these basement gneisses are of Paleoproterozoic. Rock association of these basement gneisses includes tonalite, syenite and paragneiss, not belonging to a sedimentary package. It is more appro-priate to consider this association as a basement complex rather than a stratigraphic 'Group'. | WANG Kaiyi FAN Hongrui XIE Yihan LI Huimin | 2002 | Chinese Science Bulletin2002，47，3： | 16 |
| 2 | Bayan Obo Carbonatites:Texture Evidence from Polyphase Intrusive and Extrusive Carbonatites显示文摘大多数所谓的 Bayan Obo 有细密纹理的白云石云石收集了从主要并且东方 orebodies 表演一块 microporphyritic 质地,也就是, microphenocrysts 被放在一个很有细密纹理的矩阵,尽管将近所有他们经历了也变丑或改变引起的再结晶。质地似乎可能坚持说原来的特征。暴烈的岩石的最典型的质地之一是斑状的质地,这被知道,并且 microporphyritic 质地是斑晶和矩阵与显微镜仅仅是可区分的一个在变化。因此,白云石云石总体上并且东方 orebodies 可能与挤出的 carbonatites 有关。另外,也在那里发生有在 Bayan Obo 的不同质地的一些 carbonatite 基石和女同性恋。因此, Bayan Obo carbonatites 是多相的恼人、挤出的 carbonatites。 | WANG Kaiyi FAN Hongrui YANG Kuifeng HU Fangfang MA Yuguang | 2010 | Acta Geologica Sinica(English Edition)2010，84，6： | 11 |
| 3 | Image segmentation of overlapping leaves based on Chan–Vese model and Sobel operator显示文摘To improve the segmentation precision of overlapping crop leaves,this paper presents an effective image segmentation method based on the Chan–Vese model and Sobel operator.The approach consists of three stages.First,a feature that identifies hues with relatively high levels of green is used to extract the region of leaves and remove the background.Second,the Chan–Vese model and improved Sobel operator are implemented to extract the leaf contours and detect the edges,respectively.Third,a target leaf with a complex background and overlapping is extracted by combining the results obtained by the Chan–Vese model and Sobel operator.To verify the effectiveness of the proposed algorithm,a segmentation experiment was performed on 30 images of cucumber leaf.The mean error rate of the proposed method is 0.0428,which is a decrease of 6.54%compared with the mean error rate of the level set method.Experimental results show that the proposed method can accurately extract the target leaf from cucumber leaf images with complex backgrounds and overlapping regions. | Zhibin Wang Kaiyi Wang Feng Yang Shouhui Pan Yanyun Han | 2018 | Information Processing in Agriculture2018，5，1： | 7 |
| 4 | Fenitized Wall Rock Geochemistry of the First Carbonatite Dyke at Bayan Obo, Inner Mongolia, China显示文摘The first carbonatite dyke at Bayan Obo is well exposed on the surface for a length and width of approximately 60 m and 1.1–1.5 m, respectively. Along its strike, the fenitized H1(Qs) and H2(Cs) quartzite is replaced by Na-amphiboles, aegirines, and alkali-feldspars, intermittently stretching as far away as 800 m in length. Based on petrographical characteristics, the dyke's fenitized wall rocks are divisible into different zones:(1) outer,(2) middle, and(3) inner. The outer zone is 5–17 m from the NW margin of the dyke. The middle zone is located at 3.5–5 m from the NW margin of the dyke. The inner contact zone is located between direct contact with the dyke and 3.5 m from the dyke. In the outer zone, upon visual examination, no evidence of outcrop fenitization was found and the major elemental rock composition is nearly identical to the unaltered H1 and H2 lithologies. In the thin sections, however, small amounts of Na-amphibole and phlogopite are present. Despite relatively poor development throughout the 5 m of fenitization, the wall rocks have retained at least a small geochemical signature comparable to the original sedimentary protolith. The fenites occurring in the inner zone exhibit distinct variations, not only for the sharp contact at the outcrop scale, but also for variations in major, rare earth elements(REE), and trace elements and Sm-Nd isotope composition. The wall rocks within 3.5 m have undergone strong fenitization, inheriting the geochemical signature derived from the carbonatite dyke. Fenitization in the middle zone was not as strong, at least compared to the inner zone, but was stronger than the outer zone. Compared to some trace elements and REEs, the major elements are relatively immobile during fenitization. The Sm-Nd isotope data for the carbonatite dyke and the adjacent fenitized wall rocks, where the Sm and Nd originate solely from the dyke, plots as a six-point isochron with an age of 1308±56 Ma. This age is identical to that of ore-bearing dolomite carbonatite and the related ore-forming events, indicating that there may be a petrogenetic link between the two. Based on Sr and Nd isotope compositional data, the first carbonatite dyke may be derived from an enriched mantle. | WANG Kaiyi ZHANG Jien YU Liangjun FANG Aimin DONG Ce HU Fuyou | 2018 | Acta Geologica Sinica(English Edition)2018，92，2： | 3 |
| 5 | Granitoid evolution in the Late Archean Wutai Complex, North China Craton显示文摘 | Wilde S A C P A Wang Kaiyi Nemchin A A | 2005 | Journal of Asian Earth Sciences2005，24，： | 1 |
| 6 | Exploration of Community Image Construction Based on CIS——Take Taizhou Open University as an Example显示文摘CIS strategy has been widely used in enterprise management,which brings economic and social benefits to enterprises.Based on the introduction of CIS strategic connotation,implementation effect and shaping cases,the purpose of this paper is to improve the image of adult education community,strengthen the construction and management level of community,enhance the attraction of community,and promote the high quality development of adult open education. | Kaiyi Wang | 2021 | Journal of Finance Research2021，5，1： | 1 |
| 7 | Multivariate and geostatistical analyses of the spatial distribution and origin of heavy metals in the agricultural soils in Shunyi, Beijing, China显示文摘 | Anxiang Lu Jihua Wang Xiangyang Qin Kaiyi Wang Ping Han Shuzhen Zhang | 2012 | Science of the Total Environment2012，，： | 1 |
| 8 | Granitoid evolution in the Late Archean Wutai Complex, North China Craton显示文摘 | Simon A. Wilde Peter A. Cawood Kaiyi Wang Alexander A. Nemchin | 2004 | Journal of Asian Earth Sciences2004，，5： | 1 |
| 9 | Application of support vector machine to haccp in animal meat industry显示文摘 | Wang Kaiyi Zhao Chunjiang Zhang Fangtian | 2007 | New Zealand Journal of Agricultural Research2007，50，5： | 1 |
| 10 | PREPARATION OF HIGH-PURITY AND NANOMETER-SCALE BARIUM TITANATE POWDERS显示文摘PREPARATIONOFHIGHPURITYANDNANOMETERSCALEBARIUMTITANATEPOWDERS①WangKaiyi,LiaoBo,LiuYexiang,WeiQing,QianDong,ChenXiaoyiandLai... | Wang Kaiyi, Liao Bo, Liu Yexiang, Wei Qing, Qian Dong, Chen Xiaoyi and Lai DeyongDepartment of Chemistry,Central South University of Technology, Changsha 410083, P. R. China | 1998 | 中国有色金属学会会刊:英文版1998，8，1： | 1 |
| 11 | SYNTHESIS AND CHARACTERIZATION OF DI(2,4,6-TRIBROMOPHENOXY)TRIPHENYL-ANTIMONY显示文摘The synthetic method and characterization of di(2,4,6-tribromophenoxy)triphenyl antinony are reporledin this paper.This compound is prepared by reacting dihalotripheny-antimony with tribromophenol under defi-nite conditions and its yield is 70-80%.Relow 250℃,the product has good lhernal stability.It makes alavorable flame resisting effect on polyethylene.while the addition is ouly l0 Phr without using animeny1rioxide,the oxygen index of the polymer increases from 18.51o 26.5,and there are no adverse effects on themechanical properties of polyelhylene. | Shu Wanyin Liu Daliang Huang Kelong Wang Kaiyi Li Yuangao | 1992 | Transactions of Nonferrous Metals Society of China1992，2，2： | 0 |
| 12 | Numerical Study on the Gas Leakage and Dispersion at the Street Intersection of a Building Group显示文摘Accidents involving natural gas leakage and dispersion pose a significant threat to human life and property.This threat is especially relevant at the street intersection at which dense buildings,heavy traffic flow,and complex underground pipe networks meet.Scholars have conducted numerous studies on gas leakage and dispersion,but investigations of natural gas leakage and dispersion at the street intersection of a building group are not in-depth.In this paper,we presented a three-dimensional(3D)physical model based on the Computational Fluid Dynamic(CFD)methodology to study the natural gas leakage and dispersion at the street intersection of a building group.We validated the CFD methodology applied in the research based on the data from the field tests and wind tunnel experiments.Then,we simulated and analyzed the pressure,wind,and concentration of natural gas dispersion at the street intersection.The simulation results showed that vortex regions,low-pressure zones,and a building group effect could cause a build-up of natural gas concentration under perpendicular wind direction conditions.In addition,the area of hazardous region tended to increase first and then drop with the dispersion height.In the case of this study,the maximum area of hazardous region is 200 m2 located in the height of 55 m,which is the middle plane in the computational domain.The results in the paper can provide scientific references for the safe operation and emergency-management decisions of municipal gas. | Weitao Zhang Mengqi Liu Kaiyi Wang Fan Zhang Lei Hou | 2020 | Computer Modeling in Engineering & Sciences2020，，6： | 0 |
| 13 | Enhanced performance of NiF_(2)/BiVO_(4)photoanode for photoelectrochemical water splitting显示文摘The serious surface charge recombination and fatigued photogenerated carriers transfer of the BiVO_(4)photoanode restrict its photoelectrochemical(PEC)water splitting performance.In this work,nickel fluoride(NiF_(2))is applied to revamp pure BiVO_(4)photoanode by using a facile electrodeposition method.As a result,the asprepared NiF_(2)/BiVO_(4)photoanode increases the dramatic photocurrent density by approximately 180%compared with the pristine BiVO_(4)photoanode.Furthermore,the correlative photon-to-current conversion efficiency,the charge injection,and the separation efficiency,as well as the hydrogen generation of the composite photoanode have been memorably enhanced due to the synergy of NiF_(2)and BiVO_(4).This study may furnish a dependable guidance in fabricating the fluoride-based compound/semiconductor composite photoanode system. | Ziwei ZHAO Kaiyi CHEN Jingwei HUANG Lei WANG Houde SHE Qizhao WANG | 2021 | Frontiers in Energy2021，15，3： | 0 |
| 14 | Dynamic ensemble selection of convolutional neural networks and its application in flower classification显示文摘In recent years,convolutional neural networks(CNNs)have achieved great success in image classification.However,CNN models usually have complex network structures that tend to cause some related problems,such as redundancy of network parameters,low training efficiency,overfitting,and weak generalization ability.To solve these problems and improve the accuracy of flower classification,the advantages of CNNs were combined with those of ensemble learning and a method was developed for the dynamic ensemble selection of CNNs.First,MobileNet models pre-trained on a public dataset were transferred to flower datasets to train thirteen different MobileNet classifiers,and a resampling strategy was used to enhance the diversity of individual models.Second,the thirteen classifiers were sorted by a classifier sorting algorithm,before ensemble selection,to avoid an exhaustive search.Finally,with the credibility of recognition results,a classifier subset was dynamically selected and integrated to identify the flower species from their images.To verify the effectiveness,the proposed method was used to classify the images of five flower species.The accuracy of the proposed method was 95.50%,an improvement of 1.62%,3.94%,22.04%,13.77%,and 0.44%,over those of MobileNet,Inception-v1,ResNet-50,Inception-ResNet-v2,and the linear ensemble method,respectively.In addition,the performance of the proposed method was compared with five other methods for flower classification.The experimental results demonstrated the accuracy and robustness of the proposed method. | Zhibin Wang Kaiyi Wang Xiaofeng Wang Shouhui Pan Xiaojun Qiao | 2022 | International Journal of Agricultural and Biological Engineering2022，15，1： | 0 |
| 15 | Boosting the photoelectrochemical water oxidation performance of bismuth vanadate by ZnCo_(2)O_(4) nanoparticles显示文摘Due to the involvement of four-electron transfer process at photoanode,water oxidation is the ratelimiting step in water splitting reaction.To settle this dilemma,ZnCo_(2)O_(4)nanoparticles are combined with BiVO_(4)to form a p-n ZnCo_(2)O_(4)/BiVO;heterojunction photoanode,which is proved by an input voltage-output current test.The built-in electric field formed within the heterojunction structure promotes the effective separation of electrons and holes.ZnCo_(2)O_(4)is also an effective water oxidation cocatalyst,since it could cause the holes entering the electrode/electrolyte interface rapidly for the subsequent water oxidation reaction.The photocurrent density of ZnCo_(2)O_(4)/BiVO_(4)composite photoanode reaches 3.0 mA/cm^(2) at 1.23 V vs.RHE in 0.5 mol/L sodium sulfate under AM 1.5 G simulated sunlight,about 2.1 times greater than that of BiVO_(4)(1.4 mA/cm^(2)).These results suggest the potential of ZnCo_(2)O_(4)nanoparticles for improving photoelectrochemical water splitting anode materials. | Jingwei Huang Yani Wang Kaiyi Chen Tingting Liu Qizhao Wang | 2022 | Chinese Chemical Letters2022，33，4： | 0 |
| 16 | Image enhancement for crop trait information acquisition system显示文摘Collecting images using portable devices is an effective and convenient method for acquiring crop trait information.Because of uncertain environmental conditions in the field,enhancement is necessary to improve the visual quality of images.With this aim,here we propose an adaptive image enhancement method based on guided filtering.Our method automatically calculates the enhancement weights of the detail in an image according to the distribution characteristics of the illumination intensity of a crop image,so as to adaptively adjust the contrast of the image.To verify the effectiveness of the proposed algorithm,we performed enhancement experiments on 50 images of four kinds of cucumber leaf tissues,namely,leaves infected with target spot,powdery mildew,and downy mildew,and healthy leaves.The results showed that our proposed method substantially improved the visual quality of the images.Moreover,the mean ratios of the contrast to color difference obtained using the proposed method were higher than the mean ratios obtained using five conventional enhancement methods.We consider the proposed method for image enhancement will be a valuable addition to the crop trait information acquisition system(http://gffzz29a4dcd410a5431ahcwkk5kcqvkpc6bbb.ffgz.tsg.suse.edu.cn/). | Zhibin Wang Kaiyi Wang Feng Yang Shouhui Pan Yanyun Han Xiangyu Zhao | 2018 | Information Processing in Agriculture2018，5，4： | 0 |
| 17 | Angle-uniform parallel coordinates显示文摘We present angle-uniform parallel coordinates,a data-independent technique that deforms the image plane of parallel coordinates so that the angles of linear relationships between two variables are linearly mapped along the horizontal axis of the parallel coordinates plot.Despite being a common method for visualizing multidimensional data,parallel coordinates are ineffective for revealing positive correlations since the associated parallel coordinates points of such structures may be located at infinity in the image plane and the asymmetric encoding of negative and positive correlations may lead to unreliable estimations.To address this issue,we introduce a transformation that bounds all points horizontally using an angleuniform mapping and shrinks them vertically in a structure-preserving fashion;polygonal lines become smooth curves and a symmetric representation of data correlations is achieved.We further propose a combined subsampling and density visualization approach to reduce visual clutter caused by overdrawing.Our method enables accurate visual pattern interpretation of data correlations,and its data-independent nature makes it applicable to all multidimensional datasets.The usefulness of our method is demonstrated using examples of synthetic and real-world datasets. | Kaiyi Zhang Liang Zhou Lu Chen Shitong He Daniel Weiskopf Yunhai Wang | 2023 | Computational Visual Media2023，9，3： | 0 |
| 18 | Marketing Strategy Analysis of the Palace Museum显示文摘The development of cultural innovation is beneficial for museums to give full play to their cultural advantages and improve their economic benefits,accordingly forming a virtuous circle.This paper analyzes the cultural and creative brand marketing environment and strategy of the Palace Museum,hoping to provide some references for other museums through the analysis and summary of cultural and creative brand marketing strategy of the Palace Museum. | Qi Wang Huan Liu Kaiyi Liu | 2019 | Journal of Finance Research2019，3，2： | 0 |
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