检索结果-南通市图书馆

Classifying Cognitive Decline in Older Drivers from Behavior on Adverse Roads Detected Using Computer Vision

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Transportation Technologies 2025年第1期15卷 135-154页

作者： Md Zahid hasan Guillermo Basulto-elias Shauna hallmark Jun ha Chang Anuj Sharma Jeffrey D. Dawson Soumik Sarkar Matthew Rizzo Institute for Transportation Iowa State University Ames Iowa USA Department of Neurological Sciences University of Nebraska Medical Center Omaha Nebraska USA

As drivers age, roadway conditions may become more challenging, particularly when normal aging is coupled with cognitive decline. Driving during lower visibility conditions, such as inclement weather, is especially challenging for older drivers due to their sensitivity to glare and reduced visibility. As a result, older drivers may adjust their behavior during adverse weather. This paper explores the differential impacts of weather on older drivers with cognitive decline compared to older drivers with normal cognitive function. Data were from a naturalistic driving study of older drivers in Omaha, Nebraska. Driver speed and weather data were extracted and the correlation between speed compliance, road weather conditions, and the cognitive/neurological status of the drivers was examined. Speed compliance was used as the surrogate safety measure since driving at lower speeds can indicate that the driver is challenged by roadway or environmental conditions and can therefore indicate a risk. The percentage of time during a trip when drivers were 16.1 kph under the speed limit was modeled as the dependent variable using beta regression. The variables that resulted in the best fit model were mild cognitive impairment (MCI), age group, traffic density, and weather. Results indicated that the youngest group of older drivers (young-old) spent less time driving at impeding speeds and had the least variability compared to the other two age groups. The middle group of older drivers (middle-old) had the highest amount of time driving at impeding speeds and had more variability than young-old drivers. The oldest group of older drivers (old-old) were the most likely to drive at impeding speeds and had the most variability. In general, older drivers were more likely to drive at impeding speeds during peak hours than during non-peak hours. Additionally, in most cases, older drivers spent less time below the speed limit when the weather was clear than in adverse conditions. Results i

关键词： Traffic Safety Older Driver Cognitive Impairment Machine Learning Speed

人工智能技术在海上设备设施智慧运维中的应用研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

移动信息 2025年第1期47卷 210-211,215页

作者：哈卓中海油能源发展装备技术有限公司设计研发中心天津300452

针对设备设施运维作业效率低和人工经验无法沉淀等问题,文中对运维AI助手应用技术进行了研究,基于现有的运维文档和人员操作经验等数据,应用人工智能技术,形成设备设施运维专属AI模型,并持续训练和优化,实现了一种海上设备专业领域的运... 详细信息

针对设备设施运维作业效率低和人工经验无法沉淀等问题,文中对运维AI助手应用技术进行了研究,基于现有的运维文档和人员操作经验等数据,应用人工智能技术,形成设备设施运维专属AI模型,并持续训练和优化,实现了一种海上设备专业领域的运维生成式问答应用。运维生成式问答应用有别于传统检索式知识问答,可通过问题根因分析、专业知识理解、自然语言生成等能力生成解决方案,从而全面提升运维作业效能,为运维服务赋能赋智。

关键词：智慧运维人工智能大模型

Preparation and sensing characteristics of long-period fiber gratings based on periodic microchannels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国光学(中英文) 2025年第1期18卷 198-205页

作者： SUN Cai LI Yuan-jun YANG he-er PAN Xue-peng LIU Shan-ren WANG Bo GAO Meng-meng GUO Qi YU Yong-sen State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China

Long-period fiber gratings have the advantages of small size,corrosion resistance,anti-electro-magnetic interference,and high sensitivity,making them widely used in biomedicine,the power industry,and *** paper develops a long-period fiber grating sensor based on periodic ***,a series of linear structures were etched in the cladding of a single-mode fiber by femtosecond laser ***,the laser-modified region was selectively eroded by selective chemical etching to obtain the periodic microchannel ***,the channels were filled with polydimethylsiloxane(PDMS)to im-prove the spectral *** experimental results show that the sensor has good sensitivity in the measure-ment of various parameters such as temperature,stress,refractive index(RI),and *** has a temperat-ure sensitivity of−55.19 pm/℃,a strain sensitivity of−3.19 pm/με,a maximum refractive index sensitivity of 540.28 nm/RIU,and a bending sensitivity of 2.65 dB/m^(-1).All of the measurement parameters show good lin-ear *** sensor has strong application prospects in the field of precision measurement and sensing.

关键词： long-period fiber gratings femtosecond laser micromachining fiber sensors

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

蝴蝶纹样研究现状综述与展望

染整技术 2025年第2期47卷 1-4+9页

作者：魏雪儿南京艺术学院设计学院

运用文献学、设计艺术学和学术史的研究方法，对蝴蝶纹样的相关研究结果进行检索与梳理，通过对蝴蝶纹样的造型嬗变、色彩提取、文化内涵等文献的考察，分类汇总其研究现状为5类：综合叙事类的分析、纵向和横向的分析、民俗学领域的分... 详细信息

运用文献学、设计艺术学和学术史的研究方法，对蝴蝶纹样的相关研究结果进行检索与梳理，通过对蝴蝶纹样的造型嬗变、色彩提取、文化内涵等文献的考察，分类汇总其研究现状为5类：综合叙事类的分析、纵向和横向的分析、民俗学领域的分析、应用探索类的分析、图谱收集类的分析，并概述学者、机构等撰写者取得的主要成果，分析蝴蝶纹样的研究脉络、方法途径，以批判性的思维提出蝴蝶纹样现有研究中出现纵向叙述的点状堆积与线性缺失、横向探析的面性偏颇与固化思维和跨界应用的拿来主义与探索缺陷等问题，提出蝴蝶纹样研究在研究方法体系化、研究内容系统化和研究领域多元化3个方面有待进一步探索与研究。

关键词：蝴蝶纹样研究现状综述研究展望

在线全文

学校读者我要写书评

暂无评论

论《诗人玉屑》中的苏诗观

五邑大学学报(社会科学版) 2025年第1期27卷 28-31,36,92页

作者：张曦儿暨南大学文学院广东广州510632

南宋魏庆之所辑诗话《诗人玉屑》中编选了众多苏轼诗论和论苏诗论,这些诗论可以分为三种阐述类别:一是作为两宋诗学指导的涉苏诗论,二是可以传达苏轼诗学思想的苏轼诗论,三是体现魏庆之对苏轼的诗歌创作之接受的论苏诗论。由此进一步抉... 详细信息

南宋魏庆之所辑诗话《诗人玉屑》中编选了众多苏轼诗论和论苏诗论,这些诗论可以分为三种阐述类别:一是作为两宋诗学指导的涉苏诗论,二是可以传达苏轼诗学思想的苏轼诗论,三是体现魏庆之对苏轼的诗歌创作之接受的论苏诗论。由此进一步抉发《诗人玉屑》对宋诗发展的反思及总结,可以看出魏庆之推重的乃是兼有唐宋之长的诗歌范式。

关键词：《诗人玉屑》苏轼诗法接受与批评

在线全文

学校读者我要写书评

暂无评论

厦门市国土空间规划实施评估探索

城市建筑 2025年第4期22卷 102-105页

作者：李画儿厦门市自然资源和规划局

规划实施评估是指对规划目标和指标的落实情况进行全面综合评估及动态维护,文章以厦门市为例,构建了国土空间专项规划、详细规划实施评估的机制流程,梳理了在环境适应性、目标一致性和实施机制有效性三个维度的规划实施评估要点,总结了... 详细信息

规划实施评估是指对规划目标和指标的落实情况进行全面综合评估及动态维护,文章以厦门市为例,构建了国土空间专项规划、详细规划实施评估的机制流程,梳理了在环境适应性、目标一致性和实施机制有效性三个维度的规划实施评估要点,总结了国土空间专项规划、详细规划实施过程中发现的问题,并从优化机制、统筹计划两个方面提出了政策建议。

关键词：国土空间规划专项规划详细规划实施评估

A simple method for automatic recreation of railway horizontal alignments

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Railway engineering Science 2025年第1期33卷 62-78页

作者： Alberte Castro Gerardo Casal Duarte Santamarina Miguel e.Vázquez‑Méndez Transportation and Infrastructure engineering Universidade de Santiago de CompostelaEPSERúa Benigno Ledo27002 LugoSpain Department of Applied Mathematics Universidade de Santiago de CompostelaEPSERúa Benigno Ledo27002 LugoSpain CITMAga Rúa de Constantino Candeira15782 Santiago de CompostelaSpain

This paper deals with the problem of recreating horizontal alignments of existing railway *** main objective is to propose a simple method for automatically obtaining optimized recreated alignments located as close as possible to an existing *** on a previously defined geometric model,two different constrained optimization problems are *** first problem uses only the information provided by a set of points representing the track centerline while the second one also considers additional data about the existing *** proposed methodology consists of a two-stage process in which both problems are solved consecutively using numerical *** main results obtained applying this methodology are presented to show its performance and to prove its practical usefulness:an academic example used to compare with other methods,and a case study of a railway section located in Parga(Spain)in which the geometry of its horizontal alignment is successfully recovered.

关键词： Railway horizontal alignment Geometrical model Constrained optimization problem Numerical resolution

Linear Prediction for Some Rosenblatt and Rosenblatt-Volterra Processes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2025年第01期 21-26页

作者： DUNCAN Tyrone e. PASIK-DUNCAN Bozenna Department of Mathematics University of Kansas

Rosenblatt and Rosenblatt-Volterra processes are two families of stochastic processes that are described by double Wiener-It? integrals with singular kernels. The Rosenblatt processes have exponential singular kernels and the Rosenblatt-Volterra processes have singular Volterra kernels for the Wiener-It? integrals. empirical evidence shows that for many control systems the assumption of Gaussian noise is not appropriate so Rosenblatt and Rosenblatt-Volterra processes are some generalizations of Gaussian processes that can provide natural alternatives to Gaussian probability laws. Furthermore,the results for Rosenblatt and Rosenblatt-Volterra processes are tractable for some applications. These results can be compared to prediction for Gaussian processes and Gauss-Volterra processes.

关键词：

siRNA therapeutics:a clinical reality

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2020年第4期63卷 485-500页

作者： Phei er Saw er-Wei Song Guangdong Provincial Key Laboratory of Malignant Tumor epigenetics and Gene Regulation Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhou 510120China Breast Tumor Center Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhou 510120China Zhongshan School of Medicine Breast SurgeryGuangzhou 510080China

Since the revolutionary discovery of RNA interference(RNAi),a remarkable progress has been achieved in understanding and harnessing gene silencing mechanism;especially in small interfering RNA(siRNA)*** its tremendous potential benefits,major challenges in most siRNA therapeutics remains unchanged-safe,efficient and target oriented delivery of *** years after the discovery of RNAi,siRNA therapeutics finally charts its way into *** we journey through the decades,we reminisce the history of siRNA discovery and its application in a myriad of disease ***,we highlight the breakthroughs in si RNA therapeutics,with special feature on the first FDA approved RNAi therapeutics Onpattro(Patisiran)and the consideration of effective siRNA delivery system focusing on current siRNA nanocarrier in clinical ***,we present some challenges and multiple barriers that are yet to be fully overcome in siRNA therapeutics.

关键词： siRNA therapeutic disease treatment systemic siRNA delivery clinical application