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semantic segmentation of Lumbar Vertebrae Using Meijering U-Net(MU-Net)on spine Magnetic Resonance Images

Computer Modeling in Engineering & sciences 2025年第1期142卷 733-757页

作者： Lakshmi s V V shiloah Elizabeth Darmanayagam sunil Retmin Raj Cyril department of Computer science and Engineering College of Engineering GuindyAnna UniversityChennai600025India department of information technology Madras Institute of TechnologyAnna UniversityChrompetChennai600044India

Lower back pain is one of the most common medical problems in the world and it is experienced by a huge percentage of people *** to its ability to produce a detailed view of the soft tissues,including the spinal cord,nerves,intervertebral discs,and vertebrae,Magnetic Resonance Imaging is thought to be the most effective method for imaging the *** semantic segmentation of vertebrae plays a major role in the diagnostic process of lumbar *** is difficult to semantically partition the vertebrae in Magnetic Resonance Images from the surrounding variety of tissues,including muscles,ligaments,and intervertebral discs.U-Net is a powerful deep-learning architecture to handle the challenges of medical image analysis tasks and achieves high segmentation *** work proposes a modified U-Net architecture namely MU-Net,consisting of the Meijering convolutional layer that incorporates the Meijering filter to perform the semantic segmentation of lumbar vertebrae L1 to L5 and sacral vertebra ***-colour mask images were generated and used as ground truth for training the *** work has been carried out on 1312 images expanded from t1-weighted mid-sagittal MRI images of 515 patients in the Lumbar spine MRI Dataset publicly available from Mendeley *** proposed MU-Net model for the semantic segmentation of the lumbar vertebrae gives better performance with 98.79%of pixel accuracy(PA),98.66%of dice similarity coefficient(DsC),97.36%of Jaccard coefficient,and 92.55%mean Intersection over Union(mean IoU)metrics using the mentioned dataset.

关键词： Computer aided diagnosis(CAD) magnetic resonance imaging(MRI) semantic segmentation lumbar vertebrae deep learning U-Net model

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观念创新与情报体制改革

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情报科学 1988年第6期 48-54+96页

作者：王松益 the s&t information department of sstc

本文从观念创新的论点出发,阐明了创新必须对传统的、陈旧的思想,观念有所突破,有所批判,才能有所发展。科技情报体制改革,同样首先是观念创新。当前需要创新的主要观念有三:第一是进一步深化情报工作为商品经济服务的认识;第二是深化... 详细信息

本文从观念创新的论点出发,阐明了创新必须对传统的、陈旧的思想,观念有所突破,有所批判,才能有所发展。科技情报体制改革,同样首先是观念创新。当前需要创新的主要观念有三:第一是进一步深化情报工作为商品经济服务的认识;第二是深化情报工作向产业型、经营型过渡的认识;第三是深化“延伸”服务范围向经济领域主战场“进入”的认识。最后,论文阐明情报工作观念创新的目的,在于有利于社会主义初级阶段生产力的发展,并提出了深化改革的几点意见。

关键词： idea innovation information system reform commodity economy industrialization management information service productivity information work

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NONUNIQUENEss AND sINGULAR RADIAL sOLUtIONs OF sYstEMs OF CONsERVAtION LAWs

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Acta Mathematica scientia 2012年第1期32卷 367-379页

作者： Michael G.Hilgers Business and information technology department Missouri University of S & T

the case of a radial initial state for a family of hyperbolic systems of con- servation laws with several spatial dimensions is considered. It will be shown that the singularity at the origin introduces multiple solut... 详细信息

关键词： conservation laws singular solutions nonuniqueness

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Analysis of Melting Heat transport in a Cross Flow Direction:A Comparative study

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Communications in theoretical Physics 2018年第12期69卷 777-784页

作者： G.K.Ramesh s.A.shehzad department of Mathematics K.L.E'S J.T.College department of Mathematics COMSATS Institute of Information Technology

An incompressible three-dimensional laminar flow in a cross flow direction is described in this work. the term of melting and viscous dissipation is incorporated in the mathematical modeling of present flow problem. the flow expressions are converted into dimensionless equations, which are solved with help of Runge-Kutta scheme. Impact of the emerging parameters on the non-dimensional velocities and temperature and friction-factors and local Nusselt number are examined. the convergence analysis is found for ε tive analysis is made between the obtained results and published data for limiting case. It is explored at the surface that the melting parameter retards the liquid temperature while it enhances the fluid velocity.

关键词： melting effect cross flow moving plate viscous heating numerical solution

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Image Fusion Using Wavelet transformation and XGboost Algorithm

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Computers, Materials & Continua 2024年第4期79卷 801-817页

作者： shahid Naseem tariq Mahmood Amjad Rehman Khan Umer Farooq samra Nawazish Faten s.Alamri tanzila saba department of information sciences Division of S&TUniversity of EducationLahore54770Pakistan Artificial Intelligence and Data Analytics(AIDA)Lab CCIS Prince Sultan UniversityRiyadh11586Saudi Arabia Faculty of information sciences University of EducationVehari CampusVehari61100Pakistan department of Computer science University of Engineering and TechnologyTaxila47050Pakistan department of Mathematical sciences College of SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh84428Saudi Arabia

Recently,there have been several uses for digital image *** fusion has become a prominent application in the domain of imaging *** create one final image that provesmore informative and helpful compared to the original input images,image fusion merges two or more initial images of the same *** fusion aims to produce,enhance,and transform significant elements of the source images into combined images for the sake of human visual *** fusion is commonly employed for feature extraction in smart robots,clinical imaging,audiovisual camera integration,manufacturing process monitoring,electronic circuit design,advanced device diagnostics,and intelligent assembly line robots,with image quality varying depending on *** research paper presents various methods for merging images in spatial and frequency domains,including a blend of stable and curvelet transformations,everageMax-Min,weighted principal component analysis(PCA),HIs(Hue,Intensity,saturation),wavelet transform,discrete cosine transform(DCt),dual-tree Complex Wavelet transform(CWt),and multiple wavelet *** fusion methods integrate data from several source images of an identical target,thereby enhancing information in an extremely efficient *** precisely,in imaging techniques,the depth of field constraint precludes images from focusing on every object,leading to the exclusion of certain *** tackle thess challanges,a very efficient multi-focus wavelet decomposition and recompositionmethod is *** use of these wavelet decomposition and recomposition techniques enables this method to make use of existing optimized wavelet code and filter *** simulated outcomes provide evidence that the suggested approach initially extracts particular characteristics from images in order to accurately reflect the level of clarity portrayed in the original *** study enhances the performance of the eXtreme Gradient Boosting(XGBoos

关键词： Image fusion max-min average CWt XGBoost DCt inclusive innovations spatial and frequency domain

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the maximal size of 6-and 7-arcs in projective Hjelmslev planes over chain rings of order 9 Dedicated to Professor Feng Keqin on the Occasion of his 70th Birthday

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science China Mathematics 2012年第1期55卷 73-92页

作者： HONOLD thomas KIERMAIER Michael department of information and Electronic Engineering Zhejiang University Mathematisches Institut Universita¨t Bayreuth

We complete the determination of the maximum sizes of （k,n）-arcs, n ≤ 12, in the projective gjelmslev planes over the two （proper） chain rings Z9 = Z/9Z and s3 = F3[X]/（X2） of order 9 by resolving the hitherto open cases n = 6 and n = 7. Parts of our proofs rely on decidedly geometric properties of the planes such as Desargues＇ theorem and the existence of certain subplanes.

关键词： Hjelmslev geometry projective Hjelmslev plane arc finite chain ring Galois ring subplane affine subplane

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A Flexible smart Healthcare Platform Conjugated with Artificial Epidermis Assembled by three‑Dimensionally Conductive MOF Network for Gas and Pressure sensing

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Nano-Micro Letters 2025年第2期17卷 601-620页

作者： Qingqing Zhou Qihang Ding Zixun Geng Chencheng Hu Long Yang Zitong Kan Biao Dong Miae Won Hongwei song Lin Xu Jong seung Kim state Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012People’s Republic of China department of Chemistry Korea UniversitySeoul 02841Republic of Korea theranoChem Incorporation Seoul 02856Republic of Korea

the rising flexible and intelligent electronics greatly facilitate the noninvasive and timely tracking of physiological information in telemedicine *** building bionic-sensitive moieties is vital for designing efficient electronic skin with advanced cognitive functionalities to pluralistically capture external ***,realistic mimesis,both in the skin’s three-dimensional interlocked hierarchical structures and synchronous encoding multistimuli information capacities,remains a challenging yet vital need for simplifying the design of flexible logic ***,we construct an artificial epidermal device by in situ growing Cu_(3)(HHtP)_(2) particles onto the hollow spherical ti_(3)C_(2)t_(x) surface,aiming to concurrently emulate the spinous and granular layers of the skin’s *** bionic ti_(3)C_(2)t_(x)@Cu_(3)(HHtP)_(2) exhibits independent NO_(2) and pressure response,as well as novel functionalities such as acoustic signature perception and Morse code-encrypted message ***,a wearable alarming system with a mobile application terminal is self-developed by integrating the bimodular senor into flexible printed *** system can assess risk factors related with asthmatic,such as stimulation of external NO_(2) gas,abnormal expiratory behavior and exertion degrees of fingers,achieving a recognition accuracy of 97.6%as assisted by a machine learning *** work provides a feasible routine to develop intelligent multifunctional healthcare equipment for burgeoning transformative telemedicine diagnosis.

关键词： ti_(3)C_(2)t_(x)@Cu_(3)(HHtP)_(2)composites NO_(2)/pressure flexible sensors Health-monitoring Machine learning

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A simple approach for stability margin of discrete systems

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控制理论与应用（英文版） 2011年第4期9卷 567-570页

作者： Yogesh V. HOtE J. R. P. GUPtA D. Roy CHOUDHURY department of Electrical Engineering Indian Institute of technology (IIt) department of Instrumentation and Control Engineering Delhi University department of information technology (I.t.) M.A.I.t.

In this paper, a technique is presented to determine the stability margin of the discrete systems using recursive algorithm for power of companion matrix and Gerschgorin theorem and hence sufficient condition of stability is obtained. the method is illustrated with an example and it is compared with other methods proposed in the literature. the results have applications in the filter design.

关键词： Gerschgorin theorem Power of companion matrix Discrete systems stability margin

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Mapping the Dementia Research Area at the Micro-Level Using Co-terms Analysis and Positioning for traditional Herbal Medicine

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Chinese Journal of Integrative Medicine 2014年第9期20卷 706-711页

作者： Bu-Yeo Kim Jong seok Kang ung-soo Han Won Kyung Jeon Herbal Medicine Research Division Korea Institute of Oriental MedicineDaejeon 305-811Republic of Korea information Analysis Center Korea Institute of S&T InformationSeoul 130-741Republic of Korea department of Biological science Konkuk UniversitySeoul 143-701Republic of Korea

Objective： to identify the position of traditional herbal medicine in dementia research field using mapping technology. Methods： Keywords for dementia and traditional herbal medicine for treating dementia were used to extract scientific articles from the Web of science database from January 2000 to July 2010. A co- occurrence matrix was created based on the concurrent set of author＇s keywords occurring in each scientific article, and technology network maps were created from similarity index matrices. Results： twenty specialized research areas were identified in the dementia field, and the relationship strength was 0.2-0.6. Many research fields were associated with diagnosis and risk factors for dementia. Additionally, the mechanism or cause of dementia is an actively studied field. traditional herbal medicine for treating dementia was located on a map near the cortical dementia diagnosis and therapy, and frontotemporal dementia research field with a relationship strength of 0.53 and 0.31-0.33 respectively, which demonstrates that traditional herbal medicine for dementia occupies an independent research area with a relationship to existing scientific research fields. Conclusion： traditional herbal medicine can provide an alternative and complementary approach for treating dementia as evidenced by a scientific mapping analysis.

关键词： dementia mapping positioning traditional herbal medicine

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Unsupervised neural network model optimized with evolutionary computations for solving variants of nonlinear MHD Jeffery-Hamel problem

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Applied Mathematics and Mechanics(English Edition) 2015年第12期36卷 1611-1638页

作者： M.A.Z.RAJA R.sAMAR t.HAROON s.M.sHAH department of Electrical Engineering COMSATS Institute of Information Technology department of Electrical Engineering Mohammad Ali Jinnah University department of Mathematics COMSATS Institute of Information Technology

A heuristic technique is developed for a nonlinear magnetohydrodynamics （MHD） Jeffery-Hamel problem with the help of the feed-forward artificial neural net- work （ANN） optimized with the genetic algorithm （GA） and the sequential quadratic programming （sQP） method. the twodimensional （2D） MHD Jeffery-Hamel problem is transformed into a higher order boundary value problem （BVP） of ordinary differential equations （ODEs）. the mathematical model of the transformed BVP is formulated with the ANN in an unsupervised manner. the training of the weights of the ANN is carried out with the evolutionary calculation based on the GA hybridized with the sQP method for the rapid local convergence. the proposed scheme is evaluated on the variants of the Jeffery-Hamel flow by varying the Reynold number, the Hartmann number, and the an- gles of the walls. A large number of simulations are performed with an extensive analysis to validate the accuracy, convergence, and effectiveness of the scheme. the comparison of the standard numerical solution and the analytic solution establishes the correctness of the proposed designed methodologies.

关键词： Jeffery-Hamel problem neural network genetic algorithm (GA) nonlinear ordinary differential equation (ODE) hybrid technique sequential quadratic programming

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