检索结果-南通市图书馆

International Journal of Oral Science 2023年第4期15卷 575-587页

作者： Mayank Shrivastava liang ye Adams School of Dentistry University of North CarolinaChapel HillNCUSA Department of Rehabilitation Medicine University of Minnesota Medical SchoolMinneapolisMNUSA

Chronic Painful Temporomandibular Disorders(TMD)are challenging to diagnose and manage due to their complexity and lack of understanding of brain *** the past few decades’neural mechanisms of pain regulation and perception have been clarified by neuroimaging *** in the neuroimaging have bridged the gap between brain activity and the subjective experience of *** has also made strides toward separating the neural mechanisms underlying the chronic painful ***,Artificial Intelligence(AI)is transforming various sectors by automating tasks that previously required humans’intelligence to *** has started to contribute to the recognition,assessment,and understanding of painful *** application of AI and neuroimaging in understanding the pathophysiology and diagnosis of chronic painful TMD are still in its early *** objective of the present review is to identify the contemporary neuroimaging approaches such as structural,functional,and molecular techniques that have been used to investigate the brain of chronic painful TMD ***,this review guides practitioners on relevant aspects of AI and how AI and neuroimaging methods can revolutionize our understanding on the mechanisms of painful TMD and aid in both diagnosis and management to enhance patient outcomes.

关键词： diagnosis artificial separating

Adaptive SPC monitoring scheme for DOE-based APC

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2008年第2期19卷 329-336页

作者： ye liang Pan Ershun Xi Lifeng Dept. of Industrial Engineering and Logistics School of Management Engineering Shanghai Jiaotong Univ. Shanghai 200240 P. R. China

Automatic process control (APC) based on design of experiment (DOE) is a cost-efficient approach for variation reduction. The process changes both in mean and variance owing to online parameter adjustment make it hard to apply traditional SPC charts in such DOE-based APC applied process. An adaptive SPC scheme is developed, which can better track the process transitions and achieve the possible SPC run cost reduction when the process is stable. The control law of SPC parameters is designed by fully utilizing the estimation properties of the process model instead of traditionally using the data collected from the production line. An example is provided to illustrate the proposed adaptive SPC design approach.

关键词： automatic process control statistical process control robust parameter design process transitions.

Numerical study on flow fields and aerodynamics of tilt rotor aircraft in conversion mode based on embedded grid and actuator model

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2015年第1期28卷 93-102页

作者： Zhang Ying ye liang Yang Shuo Aviation Key Laboratory of Science and Technology on Aerodynamics of High Speed and High Reynolds Number AVIC Aerodynamics Research Institute

A method combining rotor actuator disk model and embedded grid technique is presented in this paper, aimed at predicting the flow fields and aerodynamic characteristics of tilt rotor aircraft in conversion mode more efficiently and effectively. In this method, rotor＇s influence is considered in terms of the momentum it impacts to the fluid around it; transformation matrixes among different coordinate systems are deduced to extend actuator method＇s utility to conversion mode flow fields＇ calculation. Meanwhile, an embedded grid system is designed, in which grids generated around fuselage and actuator disk are regarded as background grid and minor grid respectively, and a new method is presented for ‘donor searching＇ and ‘hole cutting＇ during grid assembling. Based on the above methods, flow fields of tilt rotor aircraft in conversion mode are simulated, with threedimensional Navier–Stokes equations discretized by a second-order upwind finite-volume scheme and an implicit lower–upper symmetric Gauss–Seidel（LU-SGS） time-stepping scheme. Numerical results demonstrate that the proposed CFD method is very effective in simulating the conversion mode flow fields of tilt rotor aircraft.

关键词： actuator aircraft rotor searching assembling symmetric coordinate donor stepping Stokes

A comprehensive review on biomarkers associated with painful temporomandibular disorders

在线全文

学校读者我要写书评

暂无评论

International Journal of Oral Science 2021年第3期13卷 230-242页

作者： Mayank Shrivastava Ricardo Battaglino liang ye Department of Diagnostic and Biological Sciences School of DentistryUniversity of MinnesotaMinneapolisMNUSA Department of Rehabilitation Medicine Medical SchoolUniversity of MinnesotaMinneapolisMNUSA

Pain of the orofacial region is the primary complaint for which patients seek *** all the orofacial pain conditions,one condition that possess a significant global health problem is temporomandibular disorder(TMD).Patients with TMD typically frequently complaints of pain as a *** can occur due to complex interplay between peripheral and central sensitization,endogenous modulatory pathways,and cortical *** diagnosis of TMD pain a descriptive history,clinical assessment,and imaging is ***,due to the complex nature of pain an additional step is needed to render a definitive TMD *** this review we explicate the role of different biomarkers involved in painful *** painful TMD conditions,the role of biomarkers is still *** believe that the identification of biomarkers associated with painful TMD may stimulate researchers and clinician to understand the mechanism underlying the pathogenesis of TMD and help them in developing newer methods for the diagnosis and management of ***,to understand the potential relationship of biomarkers,and painful TMD we categorize the biomarkers as molecular biomarkers,neuroimaging biomarkers and sensory *** addition,we will briefly discuss pain genetics and the role of potential microRNA(miRNA)involved in TMD pain.

关键词： diagnosis endogenous facial

Evolution and Determinants of Population Agglomeration in Less Developed Metropolitan Areas:A Case Study of the Taiyuan Metropolitan Area,China

在线全文

学校读者我要写书评

暂无评论

Chinese Geographical Science 2024年第4期34卷 739-751页

作者： QIN Zhiqin liang ye AN Shuwei DOU Yongjing School of Economics and Management Shanxi UniversityTaiyuan 030031China School of Urban Economics and Public Affairs Capital University of Economics and BusinessBeijing 100070China School of Geography Science Taiyuan Normal UniversityJinzhong 030619China

It is of importance to enhance the urban areas'capacity for population aggregation in underdeveloped regions,aiming to rectify the imbalanced and insufficient pattern of economic development in *** the Taiyuan Metropolitan Area(TMA)in central China as a case study,this paper examines the evolutionary process and characteristics of population agglomeration from 2000 to 2020,and identifies factors associated with agglomeration and their spatial *** findings indicated that:1)against the background of sustained population shrinkage in the provincial area,the TMA showed a demographic trend of steady increase,albeit with a decelerated growth *** the metropolitan area,urban population size continued to grow rapidly,whereas the rural areas endured sustained *** in city size continued to widen,and the polarization of concentrated population in the core cities kept increasing.2)Agglomerations in both secondary and service industries had significant positive effects on local population agglomeration,with the former effect being *** economic development,government fiscal expenditure,and financial advancement all contributed to facilitating local population *** a spatial spillover perspective,service agglomeration and financial development promoted population agglomeration in surrounding ***,fiscal expenditure inhibited such *** for industrial agglomeration and regional economic development,their spatial spillover effects were *** results obtained reveal several policy implications aimed at enhancing the population agglomeration capacity of the metropolitan area in underdeveloped regions during the new era.

关键词： population agglomeration population shrinkage spatial spillover effects Taiyuan Metropolitan Area(TMA) China

Graph-based multivariate conditional autoregressive models

在线全文

学校读者我要写书评

暂无评论

Statistical Theory and Related Fields 2019年第2期3卷 158-169页

作者： ye liang Department of Statistics Oklahoma State UniversityStillwaterOklahoma 74078USA

The conditional autoregressive model is a routinely used statistical model for areal data thatarise from, for instances, epidemiological, socio-economic or ecological studies. Various multivariate conditional autoregressive models have also been extensively studied in the literatureand it has been shown that extending from the univariate case to the multivariate case is nottrivial. The difficulties lie in many aspects, including validity, interpretability, flexibility and computational feasibility of the model. In this paper, we approach the multivariate modelling froman element-based perspective instead of the traditional vector-based perspective. We focus onthe joint adjacency structure of elements and discuss graphical structures for both the spatialand non-spatial domains. We assume that the graph for the spatial domain is generally knownand fixed while the graph for the non-spatial domain can be unknown and random. We proposea very general specification for the multivariate conditional modelling and then focus on threespecial cases, which are linked to well-known models in the literature. Bayesian inference forparameter learning and graph learning is provided for the focused cases, and finally, an examplewith public health data is illustrated.

关键词： Areal data disease mapping graphical model G-wishart distribution Markov random field reversible jump

Unsupervised noise-robust feature extraction for aerial image classification

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2020年第8期63卷 1406-1415页

作者： liang ye LU Shuai WENG Rui HAN ChengZhe LIU Ming School of Astronautics Harbin Institute of TechnologyHarbin 150001China Academy of Art Harbin University of Science and TechnologyHarbin 150001China Academy of Software and Microelectronics Harbin University of Science and TechnologyHarbin 150001China

The rich data provided by satellites and unmanned aerial vehicles bring opportunities to directly model aerial image features by extracting their spatial and structural *** convolutional autoencoders(CAEs)have been attained a remarkable performance in ideal aerial image feature extraction,they are still challenging to extract information from noisy images which are generated from capture and *** this paper,a novel CAE-based noise-robust unsupervised learning method is proposed for extracting high-level features accurately from aerial images and mitigating the effect of *** from conventional CAEs,the proposed method introduces the noise-robust module between the encoder and the ***,several pooling layers in CAEs are replaced by convolutional layers with stride=*** performance of feature extraction is evaluated by the prediction accuracy and the accuracy loss in image classification experiments.A 5-classes aerial optical scene and a 9-classes hyperspectral image(HSI)data set are utilized for optical image and HSI feature extraction,*** features extracted from aerial images are utilized for image classification by a linear support vector machine(SVM)*** results indicate that the proposed method improves the classification accuracy for noisy images(Gaussian noise 2Dσ=0.1,3Dσ=60)in both optical images(2D 87.5%)and HSIs(3D 85.6%)compared with the traditional CAE(2D 78.6%,3D 84.2%).The accuracy loss in classification experiments increases with the increment of *** with the traditional CAE(2D 15.7%,3D 11.8%),the proposed method shows the lower classification accuracy loss in experiments(2D 0.3%,3D 6.3%).The proposed unsupervised noise-robust feature extraction method attains desirable classification accuracy in ideal input and enhances the feature extraction capability from noisy input.

关键词： aerial image classification convolutional autoencoder feature extraction noise-robust

Stabilization of a class of fuzzy stochastic jump systems with partial information on jump and sojourn parameters

在线全文

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2021年第2期64卷 353-363页

作者： CAI Bo WENG Rui ZHANG RuiXian liang ye ZHANG LiXian School of Astronautics Harbin Institute of TechnologyHarbin 150001China Key Laboratory of System Control and Information Processing Ministry of EducationShanghai 200240China

This paper addresses the problem of the design of controller for fuzzy semi-Markov jump systems with hidden modes against the incomplete information on probability density functions of sojourn time. Two ubiquitous circumstances in practice are taken into account, which are often ignored in other related work:(1) the phenomenon that system modes cannot be accessed entirely is considered proactively;(2) finitely accessible information on probability density functions is studied in this paper. By virtue of hidden semi-Markov chain, the underlying systems are modeled as hidden semi-Markov jump systems, which are more general than semi-Markov jump systems. Sufficient conditions on the existence of desired accessible-mode-dependent fuzzy controller are derived such that the fuzzy hidden semi-Markov jump systems is mean square stable. Based on the emission probability matrix, the presented control policy overcomes the possible mode-mismatch between the system mode and the accessible ***, an example is provided to demonstrate the effectiveness of the proposed control method.

关键词： hidden modes probability density function stochastic switching systems time-varying controller Takagi-Sugeno(T-S)fuzzy system

Interpolated Bumpless Transfer Control for Asynchronously Switched Linear Systems

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1579-1590页

作者： Shengao Lu Tong Wu Lixian Zhang Jianan Yang ye liang the School of Astronautics Harbin Institute of TechnologyHarbin 150080China the Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore IEEE

This paper revisits the problem of bumpless transfer control(BTC) for discrete-time nondeterministic switched linear systems. The general case of asynchronous switching is considered for the first time in the field of BTC for switched systems. A new approach called interpolated bumpless transfer control(IBTC) is proposed, where the bumpless transfer controllers are formulated with the combination of the two adjacent modedependent controller gains, and are interpolated for finite steps once the switching is detected. In contrast with the existing approaches, IBTC does not necessarily run through the full interval of subsystems, as well as possesses the time-varying controller gains(with more flexibility and less conservatism) achieved from a control synthesis allowing for the stability and other performance of the whole switched system. Sufficient conditions ensuring stability and H_(∞) performance of the underlying system by IBTC are developed, and numerical examples verify the theoretical findings.

关键词： Asynchronous switching bumpless transfer H_∞control switched systems

Progress of PHA production in transgenic plants

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1999年第19期44卷 1729-1736页

作者： Tao Wang liang ye Yanru Song Chinese Acad Sci Inst Bot Dept Plant Dev Biol Beijing 100093 Peoples R China

With its completely biodegradable ability, good physical and processing properties, and biocompatability, PHA has become the most attractive alternative to take the place of chemo-plastics and eliminate environmental pollution caused by chemo-plastics. Small-scale commercial production has been realized by bacterial fermentation, but thus produced PHA

关键词： PHA PHB PHBV transgenic plants biodegradable plastics.