Analysis of Viewing Paintings from the Perspective of Iconography

Distinguished from purely formalistic research methods,iconography pursues the interpretation of the hidden historical and humanistic connotations behind artworks,and is a discipline that combines visual text and content analysis methods.Combining the three stages of iconography proposed by Panofsky,the paper studies Shizeng Chen’s Viewing Paintings from the perspective of iconography,summarizing the formation and change of the images and contents of the artworks in the cultural system and civilization at that time,as well as their implied ideology,and analyzing the hidden spirit of the times and the historical significance behind them,so as to expound their iconographic significance.Through an in-depth discussion at three levels:pre-pictorial iconographic description,iconographic analysis,and iconographic interpretation,the facts and surface contents reproduced in the images,the traditional level of literary,artistic,and cultural knowledge,as well as the interpretation of the potential meanings are revealed.

Calculation of Taper Rolling Time in Plan View Pattern Control Process

The forward slip model with adhesion was used to derive the formula of calculating taper rolling time. The relation between the rolling time and the taper length and the relation between the rolling time and the taper thickness can be obtained. The numerical solution for this formula was used on site. According to the simulation result, the roll gap value should be changed linearly with rolling time.

Impact of random and scattered coincidences from outside of field of view on positron emission tomography/computed tomography imaging with different reconstruction protocols

Image quality in positron emission tomography(PET)is affected by random and scattered coincidences and reconstruction protocols.In this study,we investigated the effects of scattered and random coincidences from outside the field of view(FOV)on PET image quality for different reconstruction protocols.Imaging was performed on the Discovery 690 PET/CT scanner,using experimental configurations including the NEMA phantom(a body phantom,with six spheres of different sizes)with a signal background ratio of 4:1.The NEMA phantom(phantom I)was scanned separately in a one-bed position.To simulate the effect of random and scatter coincidences from outside the FOV,six cylindrical phantoms with various diameters were added to the NEMA phantom(phantom II).The 18 emission datasets with mean intervals of 15 min were acquired(3 min/scan).The emission data were reconstructed using different techniques.The image quality parameters were evaluated by both phantoms.Variations in the signal-to-noise ratio(SNR)in a 28-mm(10-mm)sphere of phantom II were 37.9%(86.5%)for ordered-subset expectation maximization(OSEM-only),36.8%(81.5%)for point spread function(PSF),32.7%(80.7%)for time of flight(TOF),and 31.5%(77.8%)for OSEM+PSF+TOF,respectively,indicating that OSEM+PSF+TOF reconstruction had the lowest noise levels and lowest coefficient of variation(COV)values.Random and scatter coincidences from outside the FOV induced lower SNR,lower contrast,and higher COV values,indicating image deterioration and significantly impacting smaller sphere sizes.Amongst reconstruction protocols,OSEM+PSF+TOF and OSEM+PSF showed higher contrast values for sphere sizes of 22,28,and 37 mm and higher contrast recovery coefficient values for smaller sphere sizes of 10 and 13 mm.

A Comparative Study on Chinese and American Views of Time

This paper focuses on people's attitude towards time and the reason. In addition, it discusses the cultural implication behind. Through the writing of this paper, readers are able to find out the reasons for the conception and behavior conflicts that you might have encountered in your communication. The aim of this paper is to help readers to decrease the chance or avoid of conflicts caused by time views in intercultural communication.

On the Feminist Comparative Study of Views on Marriage Between the Early Nineteenth Century and Modern Times—Taking Pride and Prejudice for Example

Marriage is a theme influenced by cultural progress. Economic factor is one of the main elements that people of the early nineteenth century considered when deciding a marriage. The pursuit of economic interest results in the advent of some tragic marriages while now it is a side reason. However, women today have made great advancement in education background, employment situation and social status. Women gradually have their economic ability, autonomy and social status. Hence, they began to lay emphasis on the equality and sense of happiness. This is why the views on marriage vary in different eras. This paper, based on the view of marriage from the nineteenth- century English novel Pride and Pejudice, is dedicated to elucidating the changes and improvements of view on marriage from feminist perspective via comparing and contrasting the similarities and the differences of people's view on marriage between the early 1800 s and modern times, and then draws a conclusion that the women's degree of receptive education can influence their social status and view on marriage. In modern times the view on marriage based on equality attribute to the sense of happiness of a family and the degree of satisfaction of marriage.

Capsule endoscopy: Improving transit time and image view

AIM: To evaluate the effect of various methods of small bowel preparation on the transit time and the quality of visualization of the entire small bowel mucosa.METHODS: Ninety-five patients underwent capsule endoscopy (CE) by easily swallowing the capsule. They were divided into three study groups according to the preparation used: group A (n = 26) by polyethylene glycol (PEG) liter or with sodium phosphate (SP) 12 h prior to the CE study; group B (n = 29) by erythromycin 1 h prior to the CE study; and group C (n = 40) without any preparation. Visualization ranged from good to satisfactory to poor.RESULTS: The gastric emptying time in the group prepared with erythromycin was shorter but without statistical significance and the small bowel transit time was unaffected. In elderly subjects prepared by PEG or SP, the gastric emptying time was significantly longer (163.7 min, P = 0.05). The transit times of the three sub-groups were not affected by gender or pathology.The grade of cleaning of the entire study group was 3.27±1.1. The erythromycin group presented significantly the worst quality of images (P = 0.05) compared to the other sub-groups. Age, gender, and pathology had no effect on the quality of the cleaning of the small bowel in the sub-groups. One (1.05%) case had no natural excretion.CONCLUSION: Erythromycin markedly reduces gastric emptying time, but has a negative effect on the quality of the image in the small bowel. The preparation of elderly subjects with PEG or SP has a negative effect on the small bowel transit time.

High Accuracy and Real-Time Gated Viewing Laser Radar

A gated viewing laser radar has an excellent performance in underwater low light level imaging, and it also provides a viable solution to inhibit backscattering. In this paper, a gated viewing imaging system according to the demand for real-time imaging is presented, and then the simulation is used to analyze the performance of the real-time gated viewing system. The range accuracy performance is limited by the slice number, the width of gate, the delay time step, the initial delay time, as well as the system noise and atmospheric turbulence. The simulation results indicate that the highest range accuracy can be achieved when the system works with the optimal parameters. Finally, how to choose the optimal parameters has been researched.

不同比对方式下的洲际标准时间复现性能分析

中国科学院国家授时中心研制的标准时间复现系统具备支持洲际用户对标准时间频率信号的需求。本文以位于欧洲白俄罗斯明斯克的复现终端为分析对象,分析了共视、全视不同比对方式对复现时频信号性能的影响。对于洲际范围的时间复现,复现终端与参考端共同可视卫星数变少。单一卫星导航系统可利用的共视卫星数明显减少,GPS/BDS共视可明显增加可视卫星数量,提高共视时间比对精度,全视比对对两地共同可视卫星数没有要求。分析结果表明,单GPS全视比对就可以达到优于GPS/BDS的共视比对复现效果。受BDS卫星星间偏差的影响,基于单BDS全视比对的复现效果比GPS稍差,GPS/BDS全视比对效果略有改善。复现终端运行在GPS/BDS共视比对融合GPS全视比对模式复现的时频信号的性能最优,可以满足洲际范围内5 ns的时间同步要求,为后续洲际大尺度范围的标准时间复现终端的运行模式提供参考。

基于津巴多时间观疗法的团体心理干预在抑郁症患者中的应用效果研究

目的:探讨基于津巴多时间观的团体心理干预在抑郁症患者中的应用效果。方法:选取南京某三级甲等医院2023年1月至2023年12月收治的120例抑郁症患者,随机分为对照组、干预组各60例。对照组接受常规护理干预,干预组在常规护理基础上接受津巴多时间观的团体心理干预。对比两组Beck抑郁量表(Beck depression inventory-Ⅱ,BDI-Ⅱ)、简易应对式问卷(simplified coping style questionnaire,SCSQ)、非理性信念量表(irrational beliefs scale,IBS)、津巴多时间观量表(Zimbardo time perspective inventory,ZTPI)的评分。结果:干预后,团体心理干预组SCSQ消极应对方式及IBS评分均低于常规组(P均<0.05),津巴多时间观5个维度中:“过去消极”“现在宿命”时间观的评分均明显降低常规组(P均<0.05);“过去积极”“现在冲动”“未来”的评分均高于常规组(P均<0.05)。结论:津巴多时间观的团体心理干预可以平衡抑郁症患者的时间观,增强患者的积极应对能力,从而改善抑郁症患者心理状态,提高生活质量。

早期佛教时间观的演进历程——以三世和三世法问题为中心

过去、现在和未来三世是与佛教修行解脱密切相关的时间观念,它关涉已修和未修、已断和未断。早期佛教以三世和三世法问题为着力点讨论时间之于修行解脱的意义。特别是说一切有部通过对知识和对象外在性问题的讨论展开三世实有的知识论论证,继而又在对作用与功能的区分中完成三世实有的价值论证成。在论证过程中不断强化三世和三世法的同一性,强调三世相续流转乃是有为法建立之基础,而有为法则是无为法存在之前提,这就将三世问题与一切法实有更加紧密地联系起来。说一切有部对于以空间理解时间有着特殊的认识,主张时间、空间和概念三者通过其各自最小单位“刹那”“极微”“字”积聚而共同构成有为法。如此,则既不否定以空间理解时间的传统理路,又在相续和作用的过程中显豁出因果关系的本质。

永恒还是永续:由王船山的宇宙观说起

宇宙论是儒家哲学的重要内容,而宇宙观是宇宙论的基础部分。王船山对于宇宙观有高度的自觉。他通过反思已有的宇宙观,提出自己的宇宙观。在他看来,老子、《易纬》、邵雍的宇宙观实质是“天地有始说”,而“天地有始说”是错误的,原因在于其认为天地有“始”“终”。通过对天地无“始”“终”的论证,王船山确立了自己的“天地无始说”的宇宙观。对于王船山的宇宙观,若以时、空为视角,可以推知其非“永恒”的宇宙观,乃“永续”的宇宙观,进而可推知儒家的宇宙观亦为“永续”的宇宙观。这样的分析凸显了王船山乃至整个儒家宇宙观的特点,有利于把握王船山哲学乃至整个儒家哲学的特质。

有限视场下的攻击时间和角度多约束制导律

针对精确打击任务存在导引头视场受限这一过程约束的制导问题,提出了一种考虑视场限制以及攻击角度和时间多种约束的制导律.首先,在以比例导引项实现精确命中的基础上,利用最优控制理论,采用弹目距离加权控制能耗形式的指标函数,设计了攻击角度控制项,并推导了相应的剩余飞行时间解析预测表达式.其次,基于最优误差动力学方法,设计了攻击时间相关的控制项,保证了攻击时间误差的有限时间收敛.同时,针对导引头视场有限的问题,分析了各控制项对前置角收敛性的影响,利用特定的限制函数确保前置角在整个制导过程中始终处于有效视场内,并给出了前置角的有界性及收敛性证明.数学仿真结果验证了所提出制导律对多约束制导问题的有效性.

时间传递链路闭合钟差处理方法与性能分析

守时实验室和全球卫星导航系统(GNSS)维持的时间基准都通过不同溯源链路溯源至UTC(k),k为实验室代号。目前主流溯源方式包括光纤时间传递、卫星双向时间传递和GNSS共视时间传递。通过对不同溯源链路构造闭环钟差模型,利用间接平差修正各溯源链路钟差,消除了不同链路中存在在系统差和周期项等误差,提升了时间传递精度。采用5个时频站中8条独立不同溯源链路的钟差实测数据的对算法进行验证,结果表明:由于存在未消除空间误差的影响,卫星双向时间传递和GNSS共视时间传递在长基线条件下都存在明显的周期项,通过对溯源链路的平差修正,消除了溯源钟差不闭合的问题。通过对钟差的二次多项式拟合得到的残差计算,GNSS共视时间传递噪声由0.43ns降低至0.25 ns,卫星双向时间传递噪声0.21 ns降低至0.14 ns,光纤时间传递噪声由0.18 ns降低至0.12 ns。通过提升各溯源链路的时间传递精度,有效地改善了各时间基准的服务能力。

iViewer:利用数据服务即时生成跨域数据视图

越来越多的企业和组织选择通过广域、开放的互联网作为其协作平台,业务决策者往往需要即时汇聚并综合分析来自多个部门的资源信息以进行临机决策。如何即时构建满足用户需求的跨组织数据视图,动态维护视图和数据源之间的一致性是需要求解的一个关键问题。提出了一种互联网环境下跨组织业务数据视图的动态生成方法iViewer,利用数据服务来封装自治、异构和动态变化的数据源;通过可视化和易用的数据服务组合操作来动态构建数据视图;提出了一种基于轮询的视图动态更新算法,维护数据源和数据视图的一致性,从而使得数据视图能够随数据源的变化而自主变化;详述了iViewer方法的原理和过程,并通过一个火灾应急处置场景中,面向指挥中心的跨部门火灾救援设备数据视图的动态生成过程例证了iViewer方法的效果。

WebView在线物化选择方案的研究

随着Internet的高速发展 ,产生了海量的Web信息 ,其中动态网页占了很大的部分 WebView是指通过数据查询所产生的HTML或者XML文件块 ,对WebView进行物化可以提高用户的查询速度 ,但是其代价是会可能为用户提供过期的数据 定义了WebView物化模型中的数据质量和服务质量的标准 ,并提出一种在线动态调整的WebView物化选择的算法WMS 。

津巴多时间观疗法联合正念减压干预对消化内镜肿瘤切除术患者的影响

目的 分析津巴多时间观疗法联合正念减压干预对消化内镜肿瘤切除术患者心理应激、疼痛程度及舒适度的影响。方法 选取医院2021年4月至2022年4月收治的84例消化内镜肿瘤切除术后患者,按照随机数字表法分为对照组和研究组,每组42例。对照组接受正念减压干预,研究组在对照组基础上接受津巴多时间观疗法干预。采用焦虑与抑郁自评量表评估心理状态,采用视觉疼痛模拟评分量表评估疼痛程度,采用舒适度量表评估患者舒适度,比较两组患者干预前后心理状态、疼痛程度、舒适度评分及满意度。结果 与干预前相比,干预后两组焦虑自评量表(SAS)、抑郁自评量表(SDS)评分均降低(P<0.05),且研究组SAS、SDS评分低于对照组(P<0.05)。与对照组相比,研究组干预后的视觉模拟法(VAS)评分较低(P<0.05),舒适状况量表(GCQ)评分较高(P<0.05)。研究组满意度高于对照组(P<0.05)。结论 津巴多时间观疗法联合正念加压干预能缓解消化内镜检查患者的焦虑、抑郁情绪,减轻疼痛程度,提高检查舒适度。

基于FameView的浮选液位控制系统的设计和应用

浮选工艺流程通常由粗选、扫选和精选等流程组成,每个流程配备矿浆液位控制系统用于控制液位的波动,使其稳定。然而,由于这些控制系统相互独立且分散,不能做到集中控制和协同控制,导致控制效果极差,液位波动大。针对这些缺点,北京矿冶研究总院设计了一套浮选机液位控制系统,该系统以PC机和PLC为核心硬件,利用FameView软件作为组态软件,实现了在一个平台上可以控制多套液位控制系统的目的。该系统在陕西某镍矿选矿厂运行半年,控制效果显著,液位波动小,满足生产要求。

基于北斗三号短报文的共视数据压缩传输方法

共视时间比对通过交换两地共视数据完成远距离高精度的时间比对。针对无地面通信网地区,本文提出了一种基于北斗短报文的共视数据压缩传输方法,该方法通过将共视数据进行压缩,利用北斗的短报文功能对压缩后的共视数据进行实时传输,在无地面通信网的地区进行了共视时间比对试验。试验结果表明,本文设计的共视数据压缩方法具有较好的压缩效果,可以通过北斗短报文实现无地面通信网的情况下的实时共视时间比对。