基于嵌入式系统移动物联网系统研究与实现

基于RFID技术的移动物联网应用已比较广泛,RFID技术最大缺陷是信息的单向传输。解决移动物体的信息双向传输,实现具有普遍意义的移动物联网需要解决三个层面的问题-感知层、网络层和应用层。选择嵌入式系统作为控制单元,通过在移动物体上控制单元建立WIFI热点解决网络层问题,应用层则通过将移动物体控制单元设置为wleb服务器实现。     

汉日主语位移现象比较

主语的位移现象在日语和汉语中都有出现,但二者是有区别的,汉语主语具有"前移"和"后移"两种情况,而日语主语位移只有"后移"一种情况;从位移定义要素上看,汉日语发生位移的主语都可以原样回到原来的位置而意义不变,并且句子的表达重心在前移成分上;从形式上看,汉日语移动后的主语与陈述部分之间一般有适当停顿,书面上用逗号隔开,口语上有一定的语音停顿,且语句重音在前移部分上,后移部分轻读;在形式标志上,日语中充当主语的词汇或词组一般都要后加"が""は""の""も"等表示主格的助词或副助词,汉语中的主语同谓语的关系主要由语序来决定,主语大都相对固定在句首。但无论是汉语还是日语,句末语气词都不会出现在后半部分,而是紧跟在前移部分之后。     

On Virginia Woolf’s Literary Experimentation

The paper takes the content of Virginia Woolf’s diary and novel as materials to analyze three of her most important theories which are“subjective vision”,“moment of being”and“character as center”to e...     

基于机器视觉和MATLAB/GUI的柚子外观尺寸检测系统

介绍了一种基于机器视觉技术的柚子外观尺寸检测系统.利用CMOS摄像头采集柚子正立图像,通过数字图像处理技术获取柚子的纵径、横径、表面积及体积等外观尺寸参数.借鉴已有球状水果机器视觉检测误差理论,对检测数据进行修正,提高检测精度,并应用Matlab/GUI技术建立柚子外观尺寸测量系统界面.实验表明,检测系统具有较高的检测精度,可满足实际生产中柚子分级精度的要求,且人机交互界面友好,使用操作方便.     

贵州穿青人族属考析——与畲族同出古帝少昊

穿青人是东夷太昊、少昊和蚩尤三部落联盟中奉鸟为图腾的嬴姓少昊苗裔。二昊、蚩尤在涿鹿败于黄炎帝部落联盟后,其南迁三苗裔（至迟于尧时已南迁岭南）,又继前三古帝联盟,奉出自龙图腾的太昊裔盘瓠为总领（王）。后来,三苗又演变为瑶、畲、苗三族,穿青人即归属汉初建立南海王国的畲族。     

动画视觉传达创意线索系统初探

动画艺术是最富于想象和联想的艺术形式之一。然而中国动画创作与发展的一个重要瓶颈就是动画创意的薄弱和贫乏,这是动画界不争的事实与共识。本文基于这样的窘境背景,围绕着动画创意造型这一动画创作的基本问题,对动画造型设计进行分析、归纳,并沉淀出一些创意线索,以此对解开动画创作之瓶颈提供必要的理论与实践的支持。     

人的智力中心之间具有相对独立性的证明

通过对广西师范大学、桂林电子工业学院和桂林工学院三年级广西籍学生的抽样调查并进行统计分析,论证了人的七个智力中心中的空间视觉智能、语言智能和逻辑数学智能之间是不完全相关的.从一个侧面结合中国的实际情况用真实客观的数据证明智力中心之间的相对独立性,从而为素质教育理论提供科学的依据.     

What do we see out of the corner of our eye? The role of visual pivots and gaze anchors in sport

ABSTRACT

The role and importance of peripheral vision have been discussed across various sports. Yet, its functionality remains unclear and the terms employed in the literature to characterize the use of peripheral vision are not well defined. We present a review of 29 studies focusing on the use of peripheral vision in sports. We focus on the methodological approaches employed to study its use and identify the mechanisms that may underlie the effective use of peripheral vision in sport. We define key differences between ‘gaze anchors’ and ‘visual pivots’ and introduce the concept of a ‘foveal spot’. All three gaze behaviors, while being characterized by a consistent, dynamically adjustable gaze location, have different functionalities. A gaze anchor is a cue-optimized position used for the monitoring of peripheral cues and avoiding the negative consequences of saccades (i.e. information suppression), especially under time pressure. A visual pivot is a distance-optimized location between relevant cues which allows athletes to optimally initiate saccades to those cues, especially if the costs of eye-movements are low. A foveal spot is primarily used for information processing via the fovea. Finally, we highlight suggestions for future research to improve our understanding of the functional differences between these gaze behaviors.     

基于因子分析和曲线拟合的集装箱吞吐量预测

为提高集装箱吞吐量的预测精度,提出基于因子分析和曲线拟合的集装箱吞吐量预测模型。以上海港为例,通过因子分析,分析影响集装箱吞吐量的主要因素,筛选出主因子,得到不同年份的综合经济发展值;再运用曲线拟合方法,建立以综合经济发展值为自变量,以集装箱吞吐量为因变量的三次曲线模型;运用自回归积分移动平均(autoregressive integrated moving average,ARIMA)模型预测2016—2020年的综合经济发展值,进而求得2016—2020年上海港集装箱吞吐量预测值。结果表明:该模型的拟合效果和预测精度均较高,可以运用到集装箱吞吐量预测中。给出上海港在国内经济新常态下转型升级的建议。     

Impact of combining data from multiple instruments on performance of patient-based real-time quality control

IntroductionIt is unclear what is the best strategy for applying patient-based real-time quality control (PBRTQC) algorithm in the presence of multiple instruments. This simulation study compared the error detection capability of applying PBRTQC algorithms for instruments individually and in combination using serum sodium as an example.Materials and methodsFour sets of random serum sodium measurements were generated with differing means and standard deviations to represent four simulated instruments. Moving median with winsorization was selected as the PBRTQC algorithm. The PBRTQC parameters (block size and control limits) were optimized and applied to the four simulated laboratory data sets individually and in combination.ResultsWhen the PBRTQC algorithm were individually optimized and applied to the data of the individual simulated instruments, it was able to detect bias several folds faster than when they were combined. Similarly, the individually applied algorithms had perfect error detection rates across different magnitudes of bias, whereas the error detection rates of the algorithm applied on the combined data missed smaller biases. The performance of the individually applied PBRTQC algorithm performed more consistently among the simulated instruments compared to when the data were combined.DiscussionWhile combining data from different instruments can increase the data stream and hence, increase the speed of error detection, it may widen the control limits and compromising the probability of error detection. The presence of multiple instruments in the data stream may dilute the effect of the error when it only affects a selected instrument.