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Real-time Object Subspace Searching Based on Discrete Searching Paths and Local Energy

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International Journal of Automation and computing 2016年第2期13卷 99-107页

作者： Wen-Ju Zhou Zi-Xiang Fei Huo-Sheng Hu li liu jing-na li Peter James Smith School of Computer Science and Electronic Engineering University of Essex Colchester CO4 3SQ UK School of Information and Electronic Engineering Ludong University Yantai 264025 China Vitec Videocom Ltd Bury St Edmunds Suffolk IP33 3TB UK

In automatic visual inspection, the object image subspace should be segmented and matched quickly so that the affine relationship can be built between the template image and the sample image. When the interference is strong and the illumination is uneven, for example in an industrial application, this can make it difficult to obtain an objects subspace quickly and accurately in real-time. In this paper, a novel strategy is proposed to adopt discrete radial search paths instead of searching all points in an image. Therefore, the searching time can be substantially reduced. In order to reduce the influence coming from the industrial environment, the paper proposes another method that is local energy level set segmentation, which can locate the object subspace more efficiently and accurately. The detection of ＂crown caps＂ is presented as an example in this paper. Detection effects and computing time are compared between several detection methods, and the mechanisms of inspection have also been analyzed.

关键词： Real-time object subspace discrete paths fast match level set local energy function

Analysis on the Effect of Asymmetric Information on Product Supply Chain and Pricing

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International Journal of Technology Management 2013年第5期 71-73页

作者： jing na li Hua Lanzhou Jiaotong University Lanzhou 730070 China

Along with the vigorous development of the markel economy, the transactions in the market are also increasingly frequent. In all kinds of market transactions, there are more or less inIbrmation asynunetry phenomena. Asynmaetric information makes supply chain unable to give a real reaction to the relationship between market supply and demand, and the personnel in the channels of supply chain are unable to make the optimal pricing, so that the overall profits are affected. Therefore, asymmetric information should be controlled within the normal range, for the purpose of ensuring the normal operation and healthy development of the market transactions.

关键词： Asymmetric Information Supply Chain Product Pricing

Three-dimensional printing for the accurate orthopedics:clinical cases analysis

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Bio-Design and Manufacturing 2020年第2期3卷 122-132页

作者： Xie-Ping Dong Yuan-Wei Zhang Yan-Jun Pei Zhe Wang Xiao-Xiang Zhang Xing-liang Yu Zi-Zheng Ai Yu-Xiang Mei jing-na li Department of Orthopedics Jiangxi Provincial People's Hospital Affiliated to Nanchang UniversityNo.152 Aiguo RoadNanchang 330006JiangxiChina Medical Department of Graduate School Nanchang UniversityNanchang 330006JiangxiChina 3D Printing Medical Center Xi'an International Medical CenterXi'an 710075ShaanxiChina

As an emerging technology to promote the combination of medicine and industry,the three-dimensional(3D)printing has developed rapidly in the fields of orthopedics,while its unique advantages in improving precise treatment still need to be further *** this report,our team have exhibited several classic cases of integrating 3D printing into orthopedic clinical application,thereby further elaborating thoughts and opinions on the significance of 3D printing in the orthopedic clinical application,technical advantages,existing main problems and coping strategies.

关键词： 3D printing Orthopedic clinical application Additive manufacturing Guide plate Metal 3D printing prosthesis

Distribution of wall shear stress in carotid plaques using magnetic resonance imaging and computational fluid dynamics analysis： a preliminary study

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Chinese Medical Journal 2011年第10期000卷 1465-1469页

作者： jing li-na GAO Pei-yi liN Yan SUI Bin-bin QIN Hai-qiang MA li XUE jing Department of Radiology Affiliated Beijing Tiantan Hospital Capital Medical University Beijing 100050 China Department of Neurology Affiliated Beijing Tiantan Hospital Capital Medical University Beijing 100050 China

Background Wall shear stress is an important factor in the destabilization of atherosclerotic plaques. The purpose of this study was to assess the distribution of wall shear stress in advanced carotid plaques using high resolution magnetic resonance imaging and computational fluid *** Eight diseased internal carotid arteries in seven patients were evaluated. High resolution magnetic resonance imaging was used to visualize the plaque structures, and the mechanic stress in the plaque was obtained by combining vascular imaging post-processing with computational fluid *** Wall shear stresses in the plaques in all cases were higher than those in control group. Maximal shear stresses in the plaques were observed at the top of plaque hills, as well as the shoulders of the plaques. Among them,the maximal shear stress in the ruptured plaque was observed in the rupture location in three cases and at the shoulder of fibrous cap in two cases. The maximal shear stress was also seen at the region of calcification, in thrombus region and in the thickest region of plaque in the other three cases, *** Determination of maximal shear stress at the plaque may be useful for predicting the rupture location of the plaque and may play an important role in assessing plaque vulnerability.

关键词： atherosclerosis carotid artery computationalfluid dynamics magnetic resonance imaging wall shear stress

Factors Influencing Willingness and Ability of Farmers to Adopt New Technologies:A Case Study of Guanzhong Area

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Asian Agricultural Research 2012年第7期4卷 37-40,44页

作者： TIAN jing-na,li Lu-tang College of Economics and Management,Northwest A&F University,Yangling 712100,China

Based on data of 248 rural households in Pucheng County and Huxian County,we established the Two-Level Logit Model to analyze the willingness of farmers to adopt new technologies,its influence factors,and probability of successful adoption of new *** show that the willingness has positive correlation with whether the farmer is head of household,the educational level,occupation,agricultural loan,the number of family labor,and information dissemination channel,while it has negative correlation with non-agricultural employment proportion and whether the farmer is village *** the model of the probability of farmers'successfully adopting new technologies,occupation,agricultural loan,planting area,gender and educational level are positively correlated,while age and non-agricultural employment proportion are negatively *** flow of rural labor plays a negative role in popularization of technologies in rural areas through influencing factors,including number of family labor,non-agricultural employment proportion,educational level,gender,and whether the farmer is village ***,on the basis of results of empirical study,we put forward countermeasures and suggestions for strengthening ability of farmers to adopt new technologies.

关键词： New technologies Willingness of adoption Farmers’a

Increase in the variability of terrestrial carbon uptake in response to enhanced future ENSO modulation

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 32-38页

作者： Younong li li Dan jing Peng Qidong Yang Fuqiang Yang Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer over the Low-Latitude Plateau Region Department of Atmospheric ScienceYunnan UniversityKunmingChina

El Niño-Southern Oscillation(ENSO)is a major driver of climate change in middle and low latitudes and thus strongly influences the terrestrial carbon cycle through land-air *** the ENSO modulation and carbon flux variability are projected to increase in the future,but their connection still needs further *** investigate the impact of future ENSO modulation on carbon flux variability,this study used 10 CMIP6 earth system models to analyze ENSO modulation and carbon flux variability in middle and low latitudes,and their relationship,under different scenarios simulated by CMIP6 *** results show a high consistency in the simulations,with both ENSO modulation and carbon flux variability showing an increasing trend in the *** higher the emissions scenario,especially SSP5-8.5 compared to SSP2-4.5,the greater the increase in *** flux variability in the middle and low latitudes under SSP2-4.5 increases by 30.9%compared to historical levels during 1951-2000,while under SSP5-8.5 it increases by 58.2%.Further analysis suggests that ENSO influences mid-and low-latitude carbon flux variability primarily through *** occurrence may potentially be attributed to the increased responsiveness of gross primary productivity towards regional temperature fluctuations,combined with the intensified influence of ENSO on land surface temperatures.

关键词： Carbon variability ENSO modulation CMIP6 models

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国际能源价格与中国粮食价格的联动效应评价

价格月刊 2022年第11期 19-27页

作者：吕靖烨李娜西安科技大学管理学院陕西西安710054

中国是全球最大的粮食与原油进口国,从宏观视角探究国际能源市场与中国粮食价格的联动效应已经成为时代命题。采用ARDL-ECM模型,考察了1978—2021年粮食价格、能源价格、汇率、通货膨胀率及农业部门就业率等5个变量之间的长短期动态联... 详细信息

中国是全球最大的粮食与原油进口国,从宏观视角探究国际能源市场与中国粮食价格的联动效应已经成为时代命题。采用ARDL-ECM模型,考察了1978—2021年粮食价格、能源价格、汇率、通货膨胀率及农业部门就业率等5个变量之间的长短期动态联动效应。结果表明,国际油价对国内粮价的影响呈现“U”型特征,且国内粮价对国际油价的影响更大。在所有联动效应中,各变量对国际油价的正向冲击均较强。其中,农业部门就业率对国际油价的正向冲击最强,并随着时间的推移逐渐减弱。

关键词： ARDL-ECM模型国际能源价格中国粮食价格联动效应

Pulp health and calcific healing of a complicated crown–root fracture with additional root fracture in a maxillary incisor: A case report

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World Journal of Clinical Cases 2025年第3期13卷 42-49页

作者： na li Yue-Yue Ren Ying Tang Qi Yang Tian-Tian Meng Song li jing Zhang Stomatological Hospital and College Anhui Medical UniversityHefei 230032Anhui ProvinceChina Department of Endodontics The Affiliated Stomatological Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in *** SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical *** the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival ***-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival *** This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.

关键词： Complicated crown-root fracture Multiple root fracture Spontaneous healing Cone-beam computed tomography Long-term follow-up Case report

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油压机平台改造设计

陕西煤炭 2017年第3期36卷 132-133,139页

作者：景丽娜神东煤炭集团公司维修中心一厂陕西神木719315

通过分析油压机平台使用的局限性,提出了油压机增设平台托轮和液压升降系统的改造设计方案,实现了提高工效、保证维修质量的目的。

关键词：油压机平台托轮升降装置液压控制