论新闻报道中匿名限度的把握

匿名在新闻报道中是一种特殊的处理方式。电影《罗马假日》与《大阴谋》虽然故事情节迥异,但从新闻从业的角度来看,这两部电影中的新闻记者都涉及到采用匿名的方式进行新闻报道的问题。本文将从这两部电影出发,探讨记者在新闻报道中的匿名方式及其限度。     

Origins of linguistic zonation in the Australian Alps. part 1 - Huygens' principle

The hitherto poorly recorded boundaries of extinct traditional south-east-Australian Aboriginal languages can now be redetermined with greatly improved precision using an entropy-maximizing phonetic-signature calculated from existing data sources, including old word-lists and census forms, that have, until now, largely been considered informationally worthless. Having thus determined traditional Aboriginal language zones to a previously unimaginable degree of geographical precision, it is argued that these boundaries should not be viewed merely as a static 'snapshot' but, instead, as the end-product of a knowable dynamic process (Gillieron wave propagation) governed by well-known physical rules (such as Huygens' principle and Snell's Law) and operating over 'deep' time-scales more familiar to the archaeologist than the linguist. Although this initial study is limited to south-eastern Australia, the new methodology provides the first real hope of obtaining a detailed understanding of language dispersal throughout the entire continent over the past 60,000 years.     

试论道家守愚为智的人生哲学

“愚”作为道家哲学的外在形象，内含着一种至高的人生境界。这种以“无为”为根本依据的“愚”，展露着人生追求的高超智慧，看似以静为主的内在要求，实则蕴含着巨大的处事动能，因此，道家“守愚为智”的哲学思想本质上是一种“大智若愚”的内在规定。其不仅有着严密的哲学依据和丰富的理论来源，而且对东亚地区尤其是对中国人的处事方式产生着深远的影响。在生态危机日益严重的今天，道家守愚为智的哲学思想较之西方理性的无限膨胀，更符合自然的法则，是一剂缓和人类危机的良药。     

试析外语环境下词汇有意学习的效用

在外语环境下,词汇有意学习应成为主要的词汇获取方式.为此大学英语教师应加强词汇的有意教学;深化学生词汇知识;重视语块及搭配的学习,强化新旧词汇知识的内在联系;加强阅读中的词汇学习和阅读后的词汇巩固;适当利用母语,减轻词汇学习中的认知负担,提高英汉语之间的转换能力.     

《桂花蒸阿小悲秋》的原型分析

本文采用原型分析的方法 ,通过对“暴雨”等意象的原型分析和人物行为的“细读” ,否定了作品“佣人劳碌”和“母性博爱”的题旨 ,认为这是一篇求爱不得的作品。     

上消化道疾病人工智能辅助决策方法研究

在基于电子胃镜影像的上消化道疾病智能辅助决策过程中,现有的方法较少涉及胃镜图像的可疑病灶定位和细粒度分类,且服务延迟较高。此外,这类方法所采用的传统数据扩充方法更进一步的降低了辅助决策方法的实际性能。因此本文提出了基于电子胃镜影像的上消化道疾病智能辅助诊断框架,首先使用条件对抗生成网络实现原始胃镜图像数据增强,然后设计k-Lconv模块,在此基础上开发上消化道病灶检测方法Lconv-YOLO,并利用来自某三甲医院真实的临床数据进行方法验证。实验结果表明,相比同类方法,本方法能够有效提高上消化道疾病推断的平均精度和病灶定位精度。本方法将平均检测一帧胃镜视频的时间缩短至6.73ms,敏感性和特异性分别达到79.39%和87.94%。满足电子胃镜检查过程中的视频帧实时高精度辅助诊断决策。     

考虑充电策略与电池损耗的电动汽车路径优化问题研究

针对目前研究电动物流车辆路径问题的文章未考虑电池损耗对运营成本的影响,且多在充电速率为恒定值的情况下对充电策略进行优化,本文将电动物流车辆在配送货物途中的充电时间和电池损耗成本纳入目标函数并建立了线性规划数学模型,统筹安排车辆行驶路径和充电策略使得物流企业整体运营成本最低。其次,提出了求解该问题的多阶段启发式算法MCWIGALNS。随后,通过多组算例验证了模型和算法的准确性。实验结果表明,考虑充电时间与深度放电成本的模型可以在配送距离不变或略有增加的情况下,较大幅度减少充电时间与电池损耗成本,到达降低运营成本的目的。最后,将算法实验结果与本领域已发表的成果进行比较,证明了MCWIGALNS算法对车辆路径问题具有出色的求解能力,提升了该问题理论成果的实用性。可以为物流企业电动汽车路径策略提供良好借鉴与帮助。     

New Methods for Evaluating Energy Infrastructure Development Risks

Many energy technologies that can provide reliable, low-carbon electricity generation are confined to nations that have access to robust technical and economic capabilities, either on their own or through geopolitical alliances. Equally important, these nations maintain a degree of institutional capacity that could lower the risks associated with deploying emergent energy technologies such as advanced nuclear or carbon capture and storage. The complexity, expense, and scrutiny that come with building these facilities make them infeasible choices for most nations. This paradigm is slowly changing, as the pressing need for low-carbon electricity generation and ongoing efforts to develop modular nuclear and carbon capture technologies have opened the door for potentially wider markets, including in nations without substantial institutional capacity. Here, using advanced nuclear technologies as our testbed, we develop new methods to evaluate national readiness for deploying complex energy infrastructure. Specifically, we use Data Envelopment Analysis—a method that eliminates the need for expert judgment—to benchmark performance across nations. We find that approximately 80% of new nuclear deployment occurs in nations that are in the top two quartiles of institutional and economic performance. However, 85% of potential low-carbon electricity demand growth is in nations that are in the bottom two quartiles of performance. We offer iconic paradigms for deploying nuclear power in each of these clusters of nations if the goal is to mitigate risk. Our research helps redouble efforts by industry, regulators, and international development agencies to focus on areas where readiness is low and risk correspondingly higher.     

临近隧道基坑开挖中土体加固的敏感性分析

结合某软土地区基坑开挖对邻近隧道纵向影响保护方案,利用ABAQUS动态模拟基坑开挖对临近隧道纵向变形及隧道断面弯矩的影响,对比分析坑内三轴搅拌桩土体加固强度与加固深度作为保护方案的敏感性。分析得出:随着加固强度的增加,隧道纵向位移有显著减少,达到一定值后,约束作用明显减弱;加固强度的增加对隧道纵向截面弯矩影响较弱;加固深度对隧道的变形有明显的抑制作用,但并非加固深度越深越好;地下连续墙、被动土体加固对临近基坑开挖引起的位移具有阻断作用;针对本案例,提出最优加固强度200 MPa及加固深度6 m,这既能对隧道变形起到很好抑制作用,又能实现最优的经济效益。     

地连墙变形影响因素分析及支撑设计研究

结合工程实例,利用有限元分析软件PLAXIS模拟地下连续墙设计参数,探讨不同设计对地连墙变形影响大小及差异,并根据分析结果对支撑设计方法进行优化。结果表明:适当增加墙体刚度,可以有效减小地连墙侧移;如满足地连墙最小入土深度,再增加入土深度意义不大;用混凝土支撑替换钢支撑、增加支撑刚度、减小支撑水平间距以及必要时在竖直方向上增加一道支撑对减小墙体变形具有较好的作用;同时对基坑周围软弱土体及结构薄弱区域进行土体加固对控制基坑变形效果明显。