The Planning, Organization and Management of Post-disaster Reconstruction of the Lushan Earthquake Based on the Local as the Main Body

A new organization and management mechanism with the local government as the main body was created during the post-disaster reconstruction of the "4. 20 " Lushan earthquake,in which the experiences and lessons were drawn from the "5. 12"Wenchuan earthquake. Correspondingly, the local government conducted an exploration of the organization and management mode in the field of planning and construction. The effective experiences have been accumulated, including working out a full coverage planning,taking the leading part in the urban-rural planning,and exercising whole space control over the disaster area. An innovation management mode named as "Five Generals Pattern"was implemented in the construction projects. In view that the rural housing reconstruction was a weak link, a new approach to improving the construction management was investigated,by means of strengthening on-site supervision,establishing a technical platform,and bolstering public participation.

Traditional surgical planning of liver surgery is modified by 3D interactive quantitative surgical planning approach： a single-center experience with 305 patients

BACKGROUND： Decision making and surgical planning are to achieve the precise balance of maximal removal of target lesion, maximal sparing of functional liver remnant volume, and minimal surgical invasiveness and therefore, crucial in liver surgery. The aim of this prospective study was to validate the accuracy and predictability of 3D interactive quantitative surgical planning approach （IQSP）, and to evaluate the impact of IQSP on traditional surgical plans based on 2D images. METHODS： A total of 305 consecutive patients undergoing hepatectomy were included in this study. Surgical plans were created by traditional 2D approach using picture archiving and communication system （PACS） and 3D approach using IQSP respectively by two groups of physicians who did not know the surgical plans of the other group. The two surgical plans were submitted to the chief surgeon for selection before operation. The specimens were weighed. The two surgical plans were compared and analyzed retrospectively based on the operation results. RESULTS： The two surgical plans were successfully developed in all 305 patients and all the 3D IQSP surgical plans were selected as the final decision. Total 278 patients successfully underwent surgery, including 147 uncomplex hepatectomy and 131 complex hepatectomy. Twenty-seven patients were withdrawn from hepatectomy. In the uncomplex group, the two surgical plans were the same in all 147 patients and no statistically significant difference was found among 2D calcu- lated resection volume （2D-RV）, 3D IQSP calculated resection volume （IQSP-RV） and the specimen volume. In the complex group, the two surgical plans were different in 49 patients （49/131, 37.4%）. According to the significance of differences, the 49 different patients were classified into three grades. No statistically significant difference was found between IQSP-RV and specimen volume. The coincidence rate of territory analy- sis of IQSP with operation was 92.1% （93/101） for 101 patients of anatomic hepatectomy. CONCLUSIONS： The accuracy and predictability of 3D IQSP were validated. Compared with traditional surgical planning, 3D IQSP can provide more quantitative information of anatomic structure. With the assistance of 3D IQSP, traditional surgical plans were modified to be more radical and safe.

The Reconstruction Strategies of Vrisa, Greece after the 2017 Earthquake

This paper focuses on a small Greek village named Vrisa and a specific condition of Lesbos as the arrival island for hundreds of thousands of refugees, aiming to reconsider places in state of emergency and think of flexible future reconstruction strategies which are able to adapt to the new unpredictable conditions of post-disaster. After the 2017 earthquake, the buildings in Vrisa were marked with red, yellow and green which shows different levels of damage. Also, there are some regulations to restrict the fa?ade, square meter, decoration and funding of rebuilding. By analyzing the characteristics of Vrisa village before earthquake and situation after earthquake, we came up with three reconstruction strategies from different aspects to find solutions. Meanwhile, this paper hopes to provide a reference and suggestions for similar cases of post-earthquake reconstruction.

Architectures in the Shadow of ＂Investors＇ Urban Planning＂--Case Study of Avala Hotel in Budva, Montenegro

Avala Hotel in Budva, Montenegro, has undergone three reconstructions. Each of them led to significant spatial changes. The first hotel established the foundation of urbanization process in Budva, the building was too high compared to the old town walls in the surrounding and thus not well integrated. The second reconstruction was the only successful achievement. At this time, in the first detailed urban plan including hotel and its surrounding area, the conclusion was that it represents ＂high-quality, seaside-favorable ambience＂ that should not be harmed by further building expansion. The last, illegal reconstruction in 2006 resulted in over enlarged new building disrespectful of the surrounding and the previous design. Similarly, the 2008 new detailed urban plan was the creation of ＂investors＇ urban planning＂. Entirely driven by profit, it arranges building reconstructions with multiple enlargements. This study tends to point out contextual impacts of the three hotels on the surrounding area, with special focus on the last reconstruction and ＂investors＇ urban planning＂ phenomena. The applied research method is comparative, chronological analysis of the three hotels. The aim of this research paper is to inspire initiatives that will help overcoming declining and harmful synergy of architecture and new socio-economic phenomena. It is the only way leading to the significant architectural goal： creating refined, harmonized and high quality ambience.

Survey on path and view planning for UAVs

Background In recent decades,unmanned aerial vehicles(UAVs)have developed rapidly and been widely applied in many domains,including photography,reconstruction,monitoring,and search and rescue.In such applications,one key issue is path and view planning,which tells UAVs exactly where to fly and how to search.Methods With specific consideration for three popular UAV applications(scene reconstruction,environment exploration,and aerial cinematography),we present a survey that should assist researchers in positioning and evaluating their works in the context of existing solutions.Results/Conclusions It should also help newcomers and practitioners in related fields quickly gain an overview of the vast literature.In addition to the current research status,we analyze and elaborate on advantages,disadvantages,and potential explorative trends for each application domain.

Multi-stage expansion planning of energy storage integrated soft open points considering tie-line reconstruction

With the rapid development of flexible interconnection technology in active distribution networks(ADNs),many power electronic devices have been employed to improve system operational performance.As a novel fully-con-trolled power electronic device,energy storage integrated soft open point(ESOP)is gradually replacing traditional switches.This can significantly enhance the controllability of ADNs.To facilitate the utilization of ESOP,device loca-tions and capacities should be configured optimally.Thus,this paper proposes a multi-stage expansion planning method of ESOP with the consideration of tie-line reconstruction.First,based on multi-terminal modular design characteristics,the ESOP planning model is established.A multi-stage planning framework of ESOP is then presented,in which the evolutionary relationship among different planning schemes is analyzed.Based on this framework,a multi-stage planning method of ESOP with consideration of tie-line reconstruction is subsequently proposed.Finally,case studies are conducted on a modified practical distribution network,and the cost-benefit analysis of device and multiple impact factors are given to prove the effectiveness of the proposed method.

Wind resistance aerial path planning for efficient reconstruction of offshore ship

When the unmanned aerial vehicle(UAV)is applied to three-dimensional(3D)reconstruction of the offshore ship,it faces two problems:the battery capacity limitation of the UAV and the disturbance of the wind in the environment.Wind disturbance is generally not considered in the path planning process of the existing UAV 3D reconstruction path planning research.Therefore,the planned path is only suitable for no-wind or light-wind scenarios.For the 3D reconstruction of ship targets,we propose a UAV path planning method that can satisfy both reconstruction efficiency and wind disturbance resistance requirements.Firstly,the concept of model surface complexity is proposed to generate a more efficient candidate view set.Secondly,the Min–Max strategy and a new viewpoint construction method are used to generate the initial path.Thirdly,combined with the wind field model,a method for generating a stable path against wind disturbance based on the idea of interval optimization is proposed.Experimental results demonstrate that our method can adaptively determine the number of sample points and viewpoints according to ship’s geometric characteristics and further reduce the number of viewpoints without significantly affecting the reconstruction quality;the path planned by our method is also stable against wind disturbance.

Review of cost and surgical time implications using virtual patient specific planning and patient specific implants in midface reconstruction

Aim:Summarize the available data on midfacial virtual patient specific planning and patient specific implants,highlighting the financial costs and savings,and additionally emphasize the potential cost implications of transitioning to“in-house”virtual 3D modeling and printing.Methods:Review of current literature.Results:Current literature suggests cost benefits of virtual patient specific planning and patient specific implants in the form of improved ischemia time,better boney apposition between flaps,and reduced patient complications.This reduction of complications includes a reduction in blood loss and time spent in the intensive care unit from flap failure.Improved boney apposition results in a higher likelihood of boney union and a further reduction in failure and complications.Subjective benefits of virtual patient specific planning and patient specific implants are shown in the form of improved reconstructive surgeon mental energy.In-house production of 3D models and presurgical planning provides additional cost benefits for providers as they can produce viable models at a fraction of the price of that which is produced by industrial companies.Providers can also construct and use models in an expedient manner compared to industrial models,allowing for the opportunity to be utilized in more acute settings.The foundation of developing an in-house workflow is adequate funding,resources,and clinical volume.Facilities also must focus on appropriate quality and safety measures,as well as appropriate workflow development for adequate production of models.Conclusion:Virtual patient specific planning and patient specific implants show benefits in midfacial reconstructive outcomes,resulting in realized financial and temporal gains for both patient and provider.These gains may be enhanced by moving to in-house planning and printing.

三维重建及3D打印技术在精准胸腔镜肺段切除术中的应用

目的:探讨三维重建及3D打印技术在精准胸腔镜肺段切除术中的应用。方法:选取2020年1月至2022年12月在我院行精准胸腔镜肺段切除术患者105例,用随机数表法分为2组,对照组(53例)和研究组(52例),对照组给予三维重建制定术前计划,研究组给予三维重建及3D打印技术制定术前计划。比较两组围术期相关指标,术前、术后3 d、术后3个月的肺功能指标,临床治疗疗效以及并发症发生情况。结果:研究组术中出血量、住院费用与对照组比较,差异均无统计学意义(P>0.05),研究组手术时间、拔管时间、住院时间明显短于对照组(P<0.05),研究组淋巴结清扫个数明显高于对照组(P<0.05),研究组术后总引流量明显低于对照组(P<0.05)。术后3 d研究组用力肺活量(FVC)、第1秒用力呼气容积(FEV1)、呼气流量峰值(PEF)、每分钟最大通气量(MVV)、肺一氧化碳弥散量(DLCO)较术前均降低(P<0.05),术后3 d、术后3个月对照组FVC、FEV1、PEF、MVV、DLCO较术前均降低(P<0.05),术后3 d对照组FEV1/FVC较术前升高(P<0.05),术后3个月对照组FEV1/FVC较术前降低(P<0.05),且术后3 d、术后3个月研究组FVC、FEV1、PEF、MVV、DLCO明显高于对照组(P<0.05),术后3个月研究组FEV1/FVC明显高于对照组(P<0.05)。研究组临床治疗疗效优于对照组,且研究组的临床治疗总有效率为94.23%,明显高于对照组(67.92%)(P<0.05)。研究组的并发症发生率为19.23%,与对照组(24.53%)比较,差异无统计学意义(P>0.05)。结论:三维重建及3D打印技术应用在精准胸腔镜肺段切除术中,可有效缩短手术时间,促进患者康复,改善肺功能,提高临床治疗疗效,且安全性较好。

Consideration of the Planning for the Reconstruction of Aging and Dilapidated Houses in Beijing's Old Town

In the past 41 years after the foundingof the People’s Repubilc, many buildings,with a total floor space of more than80,000,000 square meters, have been

机械臂环境三维重建与避障算法研究

为了解决机器人在未知环境中的避障规划难题,提出了一种基于视觉的三维重建与避障规划方法。通过深度相机(RealSense D435i)与机械臂组成手眼系统,首先,根据目标物体与ArUco码的相对关系,通过相机获取的ArUco标记上的特征点坐标,求解出目标物姿态;然后,改进三维重建方法,通过融合机械臂工具末端位姿和多帧点云数据,对环境进行较高精度的三维重建,作为后续规划的障碍空间;最后,应用了快速扩展随机树(RRT)的改进算法进行机械臂的避障运动规划。研究搭建了仿真及控制平台,来进行验证。实验表明:环境三维建模的精度维持在8mm以内,避障成功率为96.5%,平均规划时间为1.2s,验证了方法的可行性。

双目视觉三维重建下的植保机作业优化研究

以喷雾植保机自动化作业路径规划为研究对象,利用双目视觉摄像机对作业环境区域内的障碍物进行检测,并基于三维重建技术构建障碍物空间位置坐标,根据检测到的障碍物位置信息对喷雾植保机的避障路径进行规划,以保证喷雾植保机作业过程可实时避障。试验结果表明:喷雾植保机能够按照预先设定的作业路径行进,遇到障碍物时能够及时进行障碍检测,并根据规划路径进行避障,保证了喷雾作业的有效实施。

Dragon还是Loong:自主话语体系重构与话语规划路径探究

2024年中国官方对“龙”的英译进行正名,由dragon正式更改为Loong。这一变化看似是语言小事,实则含有文化及政治等多种因素,彰显话语传播主导权和文化自信心,体现中国话语体系的自主构建和国家语言政策的议程设置,有助于更准确地传达“龙”在中国文化中的正面形象和象征意义。本文从历时词源视角梳理“译龙”的演变过程,从共时外译层面考察“译龙”的争议原因,再从龙的外译实质与话语规划视角进行反思,接着运用“传播五要素”理论探究话语规划的原则与要求,最后以龙的外译为案例,借鉴“话语规划五个流程模式”寻找话语实践路径。

长安街西延管线迁改移工程设计与实施

长安街西延管线迁改移工程的设计和实施,兼顾了市政规划和新首钢园区规划,对与新首钢大桥相干涉的电气架空管廊入地,将首钢园区电信、给排水拆改管线与市政规划管线统一设计。论文介绍了工程设计、实施过程中遇到的困难和问题,以及采取的技术措施和方法。

高校图书馆开展红色主题文献展创新对策研究——基于上海对外经贸大学图书馆的实践与思考

高校图书馆在开展红色主题文献展过程中,应结合学校学科发展优势,注重将红色主题与馆藏学科资源特色相融合,通过打造沉浸式、立体式的红色主题教育空间,充分发挥图书馆在立德树人方面的积极作用。高校图书馆开展红色主题文献展时,可通过组建策展团队、创新定题谋篇理念、融合特色资源、构建专藏体系、活用资源叙事手法、构建多元功能平台、注重空间再造,充分发挥红色主题文献展作为红色育人空间的作用。

全域土地综合整治视域下的乡村空间重构路径——以汉中市谢村镇26个村庄为例

全域土地综合整治是推进乡村空间重构、建设和美乡村的重要手段。为破解乡村资源利用与要素整合方面的短板,实现乡村全域全要素协调发展。在明晰全域土地综合整治与乡村空间重构逻辑关联的基础上,以具备典型特征的汉中市谢村镇26个村庄为例,基于“人-地-产”耦合互动的分析框架,构建了乡村空间重构评价模型。运用GIS空间分析等技术,定量测度乡村空间重构耦合度与协调度的时空演变规律,并通过诊断模型等方法揭示了影响乡村发展的主要障碍因子。进一步将重构指数与协调度相结合,划分全域土地综合整治的分区格局,并提出相应的整治模式。根据弱势系统识别结果,提出了差异化的乡村空间重构路径:以盘活低效用地为核心,重构全域空间;以开展环境整治为途径,塑造宜居空间;以保护历史文化为抓手,保障宜业空间。

双循环背景下城市群的空间重构与规划应对——基于新国家空间理论

基于新国家空间理论,构建了“资本循环-空间建构-规划应对”的分析框架,审视由“外循环”向“双循环”转变过程中城市群的空间重构需求,提出相应的规划编制策略。研究发现:双循环新发展格局下,中国城市群在全球、国家和区域尺度均面临多重挑战。现阶段中国19个国家级城市群在经济循环中需担任不同的角色:成熟型城市群参与外循环,发展型城市群驱动内循环,培育型城市群组织微循环。为实现城市群空间重构,3种类型的城市群需有不同的国家空间工程构建逻辑和规划传导原则,以及国家空间策略部署途径和规划编制重点。本文的研究结果填补了空间规划服务于国家新发展格局的理论空白,从城市群角度为双循环战略提供重要理论和规划支撑。

法洛四联症合并肺动脉闭锁的先天性心脏病1例并文献复习

法洛四联症(TOF)是最常见的紫绀型先天性心脏病,肺动脉闭锁(PA)也是一种较为复杂的先天性心脏畸形。本文对滨州医学院附属医院收治的1例TOF合并PA的先天性心脏病进行报道,手术方案采用外科生物补片进行肺动脉瓣的重建,缝至右心室切口到原肺动脉瓣处以抗肺动脉瓣反流,最后总结TOF/PA的临床表现、影像诊断、手术方案及未来的治疗前景等。

“7·31”特大暴雨引发的门头沟区地质灾害调研及紧急应对策略研究

2023年7月29日20时至8月2日7时,北京市平均降雨量达到331毫米,门头沟区平均538.1毫米。暴雨导致门头沟地区地质灾害频发、破坏严重,造成巨大的人员伤亡和财产损失。8月中旬,对受灾严重的门头沟区进行深入调研,对洪水、滑坡、崩塌、泥石流、地面塌陷、建筑物倒塌等典型灾害从岩土体性质、灾害规模以及沿途分布特征等方面分析,科学评估其对交通路线、居民房屋的危害,并针对性提出应急处置建议和恢复重建建议,以期对今后北京市遭遇极端暴雨天气出现的地质灾害问题提供对策和技术支撑。在此基础之上,对现有的应急预案进行分析并提出改进建议,从事前、事中、事后三阶段深层次的分析政府、社区、乡镇、各部门、企事业单位、人民群众等不同主体在应对此次极端暴雨天气的暴露出的弊端和值得借鉴之处,为今后应对此类灾害提供参考。

灾难场景建筑三维重建的无人机航迹规划方法

利用无人机对灾难场景进行三维重建的应用技术,可以帮助救援人员快速了解灾难现场破坏程度、受灾人员位置分布,从而确定更好的救援方案。鉴于灾难场景状况复杂,为无人机提前规划飞行航线和拍摄视点,可实现快速对灾难区域的覆盖侦察与重建。在无人机面向灾难区域进行图像采集与三维重建的背景下,重点关注无人机在灾难场景下的航迹规划问题,通过无人机快速倾斜扫掠灾难区域以建立先验模型,并对先验模型表面进行采样和评估,进一步生成具有位置和方向约束的三维视点。为满足无人机和云台相机的动力学约束,将多视点连接与航迹规划作为优化问题进行求解,同时考虑了路径的平滑性与视点的可达性以产生规划航迹。与环形航线和之字形航线的规划方法相比,本文方法可以更为快速地实现无人机三维航迹规划并建立受灾区域的三维模型。