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关键词： New Jersey   Miocene   Kirkwood Sequence   Cohansey Sequence   Mapping  

摘要： Using a sequence stratigraphic framework, I have created cross sections, base structure contours, and isopach maps of Miocene New Jersey Coastal Plain sequences from the Kirkwood and Cohansey Formations, which provide insights into their distribution, evolution, and possible source of sediments. I created these maps by correlating gamma logs obtained from the New Jersey Geological and Water Survey, plotted in a grid-like fashion, creating 27 transects of strike and dip, and mapping in python using the depths of each sequence. Nine coreholes serve as anchors for correlations due to their extensive lithological and sequence stratigraphic descriptions: Leg 150X Cape May, Atlantic City, Bass River, and Island Beach, and Leg 174AX Ocean View, Ancora, Double Trouble, Millville, and Cape May Zoo. The Kirkwood Formation is divided into eight sequences: Kw0, Kw1a, Kw1b, Kw1c, Kw2a, Kw2b, Kw2c and Kw3, with the older sequences being more extensive and thicker than younger ones, in the Cape May peninsula and near coastal sites. This is due to more accommodation downdip. The source of sediments was from the northwest, with the major depocenter near Ocean View and a lesser one in Bass River. The Cohansey Formation can be subdivided into six sequences: Kw-Ch1, Kw-Ch2, Ch3, Ch4, Ch5, and Ch6. The first two sequences are a mixture of coarser Cohansey sands and finer sediments more similar to the Kirkwood Formation, and have relatively broad distributions, and are easier to correlate downdip, in the Cape May peninsula, while the younger sequences are more restricted. Sediment supply seems to have come from the from the northwest, into the Cape May peninsula.

关键词： 深度学习   初中地理   绘图教学   策略  

摘要： 地图是地理课程的第二语言，具有直观、形象等特点，不仅能有效激发学生的地理学习兴趣，还能帮助学生更好地理解和掌握相关地理知识，为此，不少教师在初中地理教学中开展了绘图教学。但是，在教学过程中，部分教师仍采用以自身为主体的教学模式，未有效开展深度学习，不能有效培养学生的自主学习能力，这不仅违背了新课改下尊重学生学习主体地位的要求，同时也会阻碍地理绘图教学质量的提升，因此，教师需要转变教学观念和方法，积极探索新型教学策略。基于此，文章主要探究基于深度学习视角的初中地理绘图教学策略，以供参考。

关键词： Mechanical drawing   Nanofiber   Polyacrylonitrile   Polymer   Polymer Processing   Touchspinning  

摘要： Polymeric nanofibers have been traditionally formed through the common electrospinning method. This method, while easy to run and efficient, includes dangerous drawbacks including the use of high voltage power supplies and the need for toxic polymer solvents. These drawbacks lead to further problems including limited mat collection and problems in processing complex natural polymers. Touchspinning is a brand-new method of nanofibrous mat formation. This method differs significantly from electrospinning in both its general set-up and the mechanism of fiber formation. The cold-drawing method of nanofiber formation by touchspinning utilizes a rotating disk with needles attached to it to “touch” a droplet of polymeric solution and pull this out, drying it in the process, to form a fiber. This process has been shown to be partially effective in biomedical application for neural stem cell proliferation, however the full analysis of its controllable parameters and their resultant fibers has not been conducted. Thus, the work presented here focuses on determining the full capabilities of the touchspinner to form nanofibers across varying controlled parameters and the parameters’ effects on the final fibrous mat. The primary experiments explore the effects of polymer concentration, solution pump rate, and device rotation speed on both polymer nanofiber diameter and nanofibrous mat collection. Secondary results explore the further capabilities of the touchspinner to use complex and non-conductive substrates, demonstrate uninterrupted and significant collection rates, and evaluation of crystalline behavior within the nanofibrous mats. These results allow for a more full understanding of the touchspinning method and display the further capabilities of this method of polymer nanofiber fabrication.

关键词： 中医药文化   药会图   中药   新媒体  

摘要： 目的：挖掘传统中医药文化与短视频相结合的内涵，通过此路径来发扬传播传统中医药文化。方法：通过研究将《药会图》拍摄为药性剧的形式，在新媒体平台上播放，分析相关数据。结果：《药绘图》与新媒体结合推动了传统中医药文化发展。结论：传统中医药文化与短视频相结合，为中医药的发展和宣传开创了新局面和新路径，促进了传统中医药文化的发展。

关键词： Trees   Unmanned aerial vehicles   Cold   Heat   Sensors   Aerospace engineering   Engineering   Robotics   Transportation  

摘要： As one of the main causes of weather-related damages in agriculture, frost leads to significant economic losses for farmers worldwide. Yet, traditional frost protection and temperature assessment methods in orchards remain rudimentary. Unmanned aerial vehicles (UAVs) and airborne sensing instruments emerged in recent years as promising tools for assisting efficient and convenient crop monitoring and management in precision agriculture, which creates opportunities in revolutionizing orchard frost protection approaches. With an overarching goal of building an autonomous cyber-physical system (CPS) consisting of UAV-based sensing and unmanned ground vehicle (UGV)-based heating for precise frost management, in this dissertation, a multi-dimensional mapping framework was proposed to process UAV-based thermal imagery, RGB imagery, and light detection and ranging (LiDAR) point cloud data to extract growth stage, canopy temperature, and tree structural information of an apple orchard. A thermal image stitching algorithm was developed to create high-resolution orchard temperature maps. A convolutional neural network (CNN)-based classifier was developed for detecting apple flower buds in RGB images, whose robustness against artificial image distortions and training dataset attributes were also investigated in depth. A UAV-LiDAR system was developed for identifying orchard regions that were unsafe for UGV travelling. The final output of the mapping framework, georeferenced orchard navigation maps, indicated both orchard heating requirements and orchard open space regions, which can potentially serve as a guide for UGV path planning and heat treatment application during frost events in future studies.

关键词： 初中生物教材   自主绘图   研究  

摘要： 现行的初中生物教材中涉及诸多复杂的知识，假如这些知识单纯以文字形式来呈现的话，则很难使学生对其形成清晰明确的认知，甚至可能会加大学生的理解难度，因此在教材中存在非常多的插图，以期通过图文结合的方式，来帮助学生建立对生物知识的直观认识。事实证明，基于初中生物教材开展自主绘图，有利于促进学生综合学习能力的提升，引导学生在绘图过程中将难以理解的重点知识结合自身理解来具体表现出来，从而使其更加生动化、直观化。

关键词： 文学绘图   空间研究   仿生人会梦见电子羊吗   菲利普·迪克  

摘要： 在这个空间性显著增强的时代,人类的认知模式和行为方式正因空间的凸显发生改变。就当前的文学研究而言,一方面,关注文字叙述功能的叙事学迎来了后经典复兴阶段,验证了罗兰·巴特所说的“叙事有着近乎无穷无尽的形式”,绝不局限于口头语言与书面文字;另一方面,“空间转向”增强了文学研究中空间与地方的重要性,文学中描绘的众多空间类型与地方类型则使得文学研究的边界不断延伸至地理、地图、历史、政治等学科领域,甚至触及到现代地理信息系统、遥感测绘等技术领域。美国文学空间研究的专家罗伯特·塔利就这些时代的症状提出了“文学绘图”理论,这一概念与理解世界的各种方式有关,更重要的是,它与叙事有着紧密的联系。塔利认为绘图的必要性来源于现代性大背景下人类的生存焦虑与精神迷失,人类陷入迷失方向的恐惧状态,个体在世界坐标中的定位被巨大的流动性冲击,因而迫切地寻求定位,重新确定自身与其他主体及客观现实的位置关系。文学绘图能够在存在层面帮助处在空间焦虑中的主体定位自身,并帮助主体认识其所在的空间,以及认识自身的存在。《仿生人会梦见电子羊吗?》是菲利普·迪克最为中国读者熟知的作品,仅是这个极具赛博风格的名字就引起了人们的无数好奇。小说情节紧凑,讲述的是小说主人公仿生人赏金猎人里克·德卡德在一天内的追杀六个仿生人的遭遇。菲利普·迪克独具匠心的写作方式,总是让读者在意犹未尽中继续遐想故事结局的更多可能性。本文通过文本细读与理论阐释相结合的方式对《仿生人会梦见电子羊吗?》进行文学绘图学视角的研究,探究该小说的文学绘图过程、绘图结果、绘图策略及绘图隐喻。本文既关注叙事绘图及空间建构,又注重对文学绘图的隐喻解读。一方面挖掘空间建构中复杂的地理情况、空间信息、人物关系及人物活动轨迹,另一方面探究作者作为绘图者的绘图计划及其绘图目的。本文共由五章组成。第一章绪论部分首先对菲利普·迪克及《仿生人会梦见电子羊吗?》进行简要介绍并梳理关于作家与作品的国内外研究现状及趋势,然后就本文研究问题的提出背景及具体内容进行说明,并对本文的研究视角文学绘图理论进行详细阐释。第二章从文学绘图的理论核心入手,即文学绘图是文学空间研究与叙事学的重叠地带,解析《仿生人会梦见电子羊吗?》的文学空间描绘及叙事绘图,从文本细读中归纳整理作者在叙事中进行的“地理空间”、“社会空间”以及“心理空间”的建构。第三章具体分析叙事如何表征空间、如何形成绘图。本章深入解读作者菲利普·迪克的绘图计划,并结合罗伯特·塔利的冒险绘图模型,将小说主人公同样纳入绘图计划之中。第四章结合文学绘图的隐喻功能,从写作层面、内容表征层面及现代性特征出发,主要借助法兰克福学派理论进行文学绘图隐喻解读,挖掘《仿生人会梦见电子羊吗?》文学绘图计划中隐含的对于国家身份的隐喻、对于主体性危机的反思及对于技术理性的批判。此外,本章结合菲利普·迪克的个人生活经历探讨作者的写作目的,并对小说的故事设定与当时的社会背景进行对照。第五章结论部分回顾菲利普·迪克关于《仿生人会梦见电子羊吗?》的绘图计划,指出作者通过叙事进行空间书写,并通过空间书写补足绘图计划。最后,本文就文学绘图和科幻文学研究前景进行展望,相信二者的联结,将为我们绘制现状和反思当下提供新的路径。

关键词： 绘图机器人   轨迹规划   工件坐标系   关节角度   奇点  

摘要： 针对绘图机器人在斜面绘图过程中轨迹规划中存在的问题,提出了基于绘图机器人关节空间姿态角度多项式函数的轨迹规划与优化控制方法.采用此方法,调整绘图机器人的空间姿态,优化绘图机器人的绘图路径,解决了绘图机器人规划轨迹中存在的不可达到的目标姿态问题.运行结果表明,此方法有效、可行.

摘要： ~~

关键词： Heavy ball momentum   Interior point methods   Linear feasibility   Linear programming   Linear system   Randomized algorithms  

摘要： In the era of big data, mathematical optimization has experienced a paradigm shift due to the introduction of vast amounts of data in real-time. The need to solve linear optimization problems is central to most quantitative areas such as Scientific Computing, Machine Learning, Signal Processing, Operations Research, and Computer Vision. During the last decade, there has been a huge demand from practitioners for computational frameworks that can handle huge amounts of data. While most classical optimization methods are deterministic in nature, recent developments suggest that stochastic methods play a significant role in the design of efficient algorithms that are better than existing deterministic methods for solving optimization problems with huge dimensional data. The broader goal of this thesis is to design scalable stochastic algorithms for solving large-scale convex optimization problems. In this thesis, our main focus is on the design, analysis, and implementation of such algorithms. In particular, we are interested in developing stochastic iterative methods for solving large-scale linear systems, linear feasibility, and linear programming problems. In Chapter 2, we present the Stochastic Steepest Descent (SSD) framework that connects the Sketch & Project method with the Steepest Descent method. We also propose a momentum variant of the SSD method. We then develop two greedy sampling strategies that have roots in the Kaczmarz Motzkin sampling and the capped sampling, respectively. We provide convergence results for the proposed SSD method as well as the momentum SSD method. We establish global convergence results for a wide range of projection parameters and momentum parameters. From our convergence results, one can recover convergence results of well-known methods such as steepest descent, Kaczmarz method, Motzkin method, Coordinate Descent method, etc. We also show that under mild conditions, the Cesaro average of iterates generated by SSD and momentum SSD e