基于Photo Sphere Viewer的轻量化可量测街景系统研究

随着新型基础测绘体系发展,测绘技术和装备不断升级,大量街景数据随着车载激光扫描工作一并被采集。针对该数据路线随机性大、密集程度高等特点,以及传统街景地图系统插件受限、扩展性不强、无法量测等局限,本文设计了基于Photo Sphere Viewer的轻量化可量测街景系统,在开源插件的基础上实现了对其组件的扩充、实现了行进方向、地图交互等系统功能的设计优化,进一步实现了基于深度图的街景地图量测功能。生产作业队伍对系统的使用结果表明,该系统可以辅助生产作业队伍进行属性采集、纹理更新、数据检查等多项工作,操作灵活便捷,且具有较强的可扩展性,便于基于生产需求进行改进调整,提高了生产效率,为新型基础测绘成果进一步深化应用提供了良好的借鉴作用。

基于单片机和LabVIEW的无线温度监测与控制系统设计

本文设计了一个基于STC89C52单片机和LabVIEW的无线温度监测与控制系统.该系统采用上下位机的结构,其中下位机通过STC89C52单片机控制DS18B20采集实时温度,并利用控制模块实现加热或降温,同时,通过蓝牙模块实现与上位机的无线通信;上位机以LabVIEW作为开发平台,实现对温度的实时显示、处理、存储、阈值设定和温度控制等功能.该系统电路设计简单、成本低、扩展性强、人机界面友好,可用于智能大棚的温度控制等需要温度检测的场所,具有广阔的应用前景.

Non-contact wide-field viewing system-assisted scleral buckling surgery for retinal detachment in silicone oilfilled eyes

AIM:To evaluate scleral buckling(SB)surgery using a noncontact wide-field viewing system and 23-gauge intraocular illumination for the treatment of rhegmatogenous retinal detachment in silicone oil(SO)-filled eyes.METHODS:Totally 9 patients(9 eyes)with retinal detachment in SO-filled eyes were retrospectively analyzed.All patients underwent non-contact wide-field viewing system-assisted buckling surgery with 23-gauge intraocular illumination.SO was removed at an appropriate time based on recovery.The patients were followed up for at least 3mo after SO removal.Retinal reattachment,complications,visual acuity and intraocular pressure(IOP)before and after surgery were observed.RESULTS:Patients were followed up for a mean of 8.22mo(3-22mo)after SO removal.All patients had retinal reattachment.At the final follow-up,visual acuity showed improvement for 8 patients,and no change for 1 patient.The IOP was high in 3 patients before surgery,but it stabilized after treatment;it was not affected in the other patients.None of the patients had infections,hemorrhage,anterior ischemia,or any other complication.CONCLUSION:This new non-contact wide-field viewing system-assisted SB surgery with 23-gauge intraocular illumination is effective and safe for retinal detachment in SO-filled eyes.

A Brief Overview of the Development and Significance of Modern Scientific Medicine in China:Take Chinese Academy of Medical Science and Peking Union Medical College as an Example

Since the early 20th century,China has gradually established a clinical,educational,and research system centered around modern scientific medicine,which has now become the dominant force in China's medical and health system and services,with the construction and development of the Chinese Academy of Medical Sciences and Peking Union Medical College as the most prominent symbol.The scientific medicine in the new era requires close cooperation across multiple disciplines and fields to build a high-quality and efficient medical and health service system.It also involves combining the excellent traditional Chinese culture with Western medicine to explore a unique path of modern scientific medicine with Chinese characteristics.

Research on Feature Matching Optimization Algorithm for Automotive Panoramic Surround View System

In response to the challenges posed by insufficient real-time performance and suboptimal matching accuracy of traditional feature matching algorithms within automotive panoramic surround view systems,this paper has proposed a high-performance dimension reduction parallel matching algorithm that integrates Principal Component Analysis(PCA)and Dual-Heap Filtering(DHF).The algorithm employs PCA to map the feature points into the lower-dimensional space and employs the square of Euclidean distance for feature matching,which significantly reduces computational complexity.To ensure the accuracy of feature matching,the algorithm utilizes Dual-Heap Filtering to filter and refine matched point pairs.To further enhance matching speed and make optimal use of computational resources,the algorithm introduces a multi-core parallel matching strategy,greatly elevating the efficiency of feature matching.Compared to Scale-Invariant Feature Transform(SIFT)and Speeded Up Robust Features(SURF),the proposed algorithm reduces matching time by 77%to 80%and concurrently enhances matching accuracy by 5%to 15%.Experimental results demonstrate that the proposed algorithmexhibits outstanding real-time matching performance and accuracy,effectivelymeeting the feature-matching requirements of automotive panoramic surround view systems.

Window Views of Wards in Foreign Hospitals

Through the collection and systematic analysis of documents related to window views of hospitals,it is found that natural window views had a significant impact on patients’health benefits.The research focused on three aspects:“shortening length of stay”,“pain reduction”and“improvement of recovery rate”,mainly covering three types of patients:“heart patients”,“postoperative patients”and“patients of rehabilitation centers”.Based on the above analysis,summary and sorting,new directions and perspectives of hospital environment design and research under the concept of comprehensive health of people’s physiological,psychological and social adaptation will be obtained to provide references for the research and practice of health architecture,rehabilitation architecture,biophile design and other fields.

The Youth’s View of Marriage in Chinese Mainstream Media Discourse-A Corpus-assisted Three-dimensional Discourse Analysis

The rising of aging and the declining of birth rates have forced the public to focus on the youth’s view on marriage.Based on critical discourse analysis and combined with Fairclough’s three-dimensional discourse analysis model,this paper builds a“Chinese media News Report Corpus on the topic of‘marriage’”whose news are collected from China Daily.It is found that the discourses are neutral and objective with regard to the advantages and disadvantages of marriage,but in general,it is still a traditional view of marriage that is inevitable and closely related to fertility.Although this is controlled by the policies and the social reasons including declining fertility rate,it deviates from the current view of the youth towards marriage,resulting in many serious consequences such as young people’s rejection.In addition,this research found that male and female have great differences in their views on marriage,and men’s resistance to marriage is far greater than that of women,which is departure from the public’s cognition.The reasons behind this need to be explored in order to solve the marriage and love problems of young people in today’s era and realize the healthy development of young marriage.

Pragmatist View of Human Rights:Theoretical Explanations of China’s Human Rights Practice

The pragmatist view of human rights represents a the-oretical condensation of the Chinese practice in human rights devel-opment.In view of the problem of circular idling between rights and claims caused by the traditional view of human rights of focusing on contents and not valuing implementation,social segmentation caused by empty talks on interests and claims while ignoring social develop-ment,and the phenomenon of the issue of human rights completely becoming empty and useless political rhetoric,the pragmatic view of human rights,based on the fact that there is a gap between the claims and realization of human rights,emphasizes that instead of blindly ex-panding the types of rights in term of text,it is better to base on prac-tice and promote the maximum realization of existing rights through development.The pragmatist view of human rights attaches impor-tance to relevant economic,social and cultural basis to promote the realization of human rights,rather than only focusing on the claims themselves;it pays greater attention to enhancing the realization of rights,rather than the distribution of rights under the total limit;it ad-vocates more for cooperativism in the realization of rights,rather than confrontation.The pragmatic concept of human rights takes Marxism as its theoretical basis and the gene of practice and the dimension of development as its theoretical characteristics,and promotes the devel-opment of human rights through the realization of rights.

探究新课标下高中英语读思课中Viewing技能与学科素养的融合策略

本文率先介绍了Viewing渗透下高中英语阅读中的核心素养,再精准找出Viewing在高中英语读思课中的运用模块,然后全面探究出阅读思维和Viewing技能融合的有效策略,内容包含搭建多模态互动场景、丰富语言教学活动、科学运用思维导图及拓展英语阅读资源等,更好地培养学生的学习能力、语言能力、思维品质、文化意识与知识扩展能力,增强学生英语阅读综合素质。

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.

Low-Rank Multi-View Subspace Clustering Based on Sparse Regularization

Multi-view Subspace Clustering (MVSC) emerges as an advanced clustering method, designed to integrate diverse views to uncover a common subspace, enhancing the accuracy and robustness of clustering results. The significance of low-rank prior in MVSC is emphasized, highlighting its role in capturing the global data structure across views for improved performance. However, it faces challenges with outlier sensitivity due to its reliance on the Frobenius norm for error measurement. Addressing this, our paper proposes a Low-Rank Multi-view Subspace Clustering Based on Sparse Regularization (LMVSC- Sparse) approach. Sparse regularization helps in selecting the most relevant features or views for clustering while ignoring irrelevant or noisy ones. This leads to a more efficient and effective representation of the data, improving the clustering accuracy and robustness, especially in the presence of outliers or noisy data. By incorporating sparse regularization, LMVSC-Sparse can effectively handle outlier sensitivity, which is a common challenge in traditional MVSC methods relying solely on low-rank priors. Then Alternating Direction Method of Multipliers (ADMM) algorithm is employed to solve the proposed optimization problems. Our comprehensive experiments demonstrate the efficiency and effectiveness of LMVSC-Sparse, offering a robust alternative to traditional MVSC methods.

基于ADAMS/View明弧焊接机器人运动仿真分析

明弧焊接机器人是冶金行业广泛应用的一种焊接设备,其中各部分的传动精度会对焊接枪头的行走精度产生累积误差,影响焊接质量,因此如何有效控制其传动精度和制造安装误差成为提高设计质量的关键.基于ADAMS/View虚拟平台,搭建了明弧焊接机器人虚拟试验样机,对其进行运动仿真分析,获取机器人焊接过程中运动特性.结果表明,该方法为提高机器人运动精度和设计质量提供了有效途径,且不必建立复杂的机器人运动学数学模型,避免了对模型求解的繁琐过程,有效提高了设计效率和精度.

基于LabVIEW的电机实验自助平台设计

在自助实验平台构架上,设计了电机实验监测平台,实验者能够自行完成登录、电机实验、处理实验数据并自动生成实验报告等操作。电机实验平台基于Lab VIEW实现,能够方便地完成电机拖动基础性实验。介绍了自助实验平台的结构、电机实验平台的主要功能模块,并进行了直流电动机工作特性测试实验,得到了相应的实验数据和曲线。电机实验平台是在自助实验平台的基础上设计并实现的,是自助实验平台的一部分,通过进一步修改和完善,设计不同的接口模块,还可以将自助实验平台应用到其他实验项目中,实现平台在软、硬件上的多种功能扩展。

Spindle-view系统在猪卵母细胞去核中的应用

应用Spindle—view对体外成熟培养36、42、44和45h的猪体外成熟卵母细胞减数分裂纺锤体进行去核操作，并与传统去核方法（McGrath—Solter去核法，挤压去核法）相比较，结果表明：①在42～48h之间利用Spindle—view得到的猪卵纺锤体影像与极体的相对位置没有明显的变化；②Spindle—view适合用于猪体外成熟卵母细胞减数分裂纺锤体的观察及去核；去核效率与其他两种方法相比差异极显著（95．5％，42.1％，74．2％，P〈0．01）；③纺锤体成像是否清晰可用于猪卵母细胞的质量监控。

基于ADAMS/View的双横臂独立悬架的运动学仿真分析

采用虚拟样机技术,借助于ADAMS/View软件这个操作平台,针对某轿车的双横臂独立悬架建立了多体动力学模型并对其进行运动学仿真分析,获得了前轮定位参数(前轮外倾角、前轮前束值、主销内倾角及主销后倾角)随车轮上下跳动的变化规律,为汽车悬架系统的优化提供了良好的理论依据。

基于SystemView的AM通信系统仿真设计

利用System View实现了AM通信系统。在发送端,产生了临界调幅的AM信号,信道考虑了加性高斯白噪声信道,接收端采用相干解调器解调。利用Sink库显示模块显示了AM系统中的标志性波形,并利用System View的分析功能求出各标志性信号的频谱并予以显示。实验表明,System View非常适合通信原理课程实验。

基于LabVIEW的双液压缸同步控制系统的开发

针对液压缸同步要求,构建了基于Lab VIEW的实时采集控制系统。该系统利用采集卡实现了对主、从液压缸位移的实时检测,通过增量式PID结合控制卡实现了对从液压缸位移的闭环控制,从而保证了从液压缸对主液压缸的实时跟踪,达到同步控制的目的。测试结果表明:该控制系统能够很好地控制主、从液压缸的位移,同步精度高,完全符合实际使用需求。

基于LabVIEW的超低温阀门性能测试软件设计

超低温阀门性能测试软件系统是针对研制的DN15-DN300型LNG超低温用阀门进行低温密封性能测试过程中所需要的参数监测、采集以及处理的专门软件。软件开发依据标准BS 6364-1998和JB/T 7749-1995所规定的低温阀门性能测试要求进行,应用虚拟仪器图形化的编程软件LabVIEW为开发平台,构建实时检测、采集与数据处理测试程序,能够实现对低温阀门性能测试过程中数据自动保存与分析处理。测试软件系统通过数据采集仪以RS-232串口通讯的方式把各种传感器获取的参数传输至计算机,在不同测试工况下实现对低温阀门各项性能测试参数的自动采集与监控。测试软件系统能够根据测试所得数据进行分析处理、存档、打印和实时曲线绘制,并输出测试报告。

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 。

基于LabVIEW的冲量测试系统开发

在火工品验收检测中,爆炸冲量是一个非常关键的参量。炸药在空中爆炸时生成的空气冲击波的峰值和冲量是炸药能量特性和性能的一项重要参数,也是衡量弹药爆破及杀伤效果的一项重要指标,其准确测量具有重要的意义。为了对火炸药是否合格有准确的评判,本文研制开发了冲量测试系统。选择高精度传感器并进行了信号调理电路设计,基于LabVIEW软件平台,扩展了传感器检测系统,使整个冲量测试自动化完成,实现了冲量的智能化测试。系统具有自动化程度高,操作简单方便,响应时间短和测量精度高等优点。