Monitoring Study of Long-Term Land Subsidence during Subway Operation in High-Density Urban Areas Based on DInSAR-GPS-GIS Technology and Numerical Simulation

During subway operation,various factors will cause long-term land subsidence,such as the vibration subsidence of foundation soil caused by train vibration load,incomplete consolidation deformation of foundation soil during tunnel construction,dense buildings and structures in the vicinity of the tunnel,and changes in water level in the stratum where the tunnel is located.The monitoring of long-term land subsidence during subway operation in high-density urban areas differs from that in low-density urban construction areas.The former is the gathering point of the entire urban population.There are many complex buildings around the project,busy road traffic,high pedestrian flow,and less vegetation cover.Several existing items requiremonitoring.However,monitoring distance is long,and providing early warning is difficult.This study uses the 2.8 km operation line between Wulin Square station and Ding’an Road station of Hangzhou Subway Line 1 as an example to propose the integrated method of DInSAR-GPS-GIS technology and the key algorithm for long-term land subsidence deformation.Then,it selects multiscene image data to analyze long-termland subsidence of high-density urban areas during subway operation.Results show that long-term land subsidence caused by the operation of Wulin Square station to Ding’an Road station of Hangzhou Subway Line 1 is small,with maximumsubsidence of 30.64 mm,and minimumsubsidence of 11.45 mm,and average subsidence ranging from 19.27 to 21.33 mm.And FLAC3D software was used to verify the monitoring situation,using the geological conditions of the soil in the study area and the tunnel profile to simulate the settlement under vehicle load,and the simulation results tended to be consistent with the monitoring situation.

Technology-based psychosocial support for adolescent survivors of leukemia:An example intervention for nurse specialists

Technology-based interventions are thought to be one of the innovative alternatives for improving the psychosocial health of adolescent survivors.This article outlines an example of technology-based psychosocial intervention for adolescent survivors of leukemia.This technology-based psychosocial support intervention consists of five separate modules related to personal development,coping skills,and a healthy lifestyle.intervention can be applied to adolescents(aged 12-18 years)who have completed leukemia treatment at least 2 years ago and are disease free.Psychosocial interventions are crucial to improving adolescent survivors’psychosocial well-being in long-term follow-up.It is thought that psychosocial interventions can be effective on survivors’self-efficacy,coping skills,and quality of life,and survivors will be satisfied with the program.Regarding the model of childhood cancer survivorship care,this intervention can be integrated into the follow-up program and guide pediatric oncology nurses in preparing support programs for adolescent survivors.

From Radical Innovation to Emerging Technology:Based on the Analysis of the IT Industry Cases

A process model of radical innovation evolving to emerging technology is built in this paper. Based on some typical cases in IT industry, by using this model, a systematic study about the process, path, characteristics and affect factors of radical innovation evolving to emerging technology is made. The conclusion of this study brings some inspiration for the management of emerging technology.

基于能量最小化的CCGA焊点形态仿真研究

为了确定某陶瓷柱栅阵列(CCGA)器件实现高焊接可靠性时的工艺参数组合范围,并研究焊点形态随不同参数变化的规律,以钎料润湿角、钎料体积以及焊柱偏移量作为关键变量因素,利用基于能量最小化原理的Surface Evolver软件,计算了不同因素水平组合下的实际焊点形态,并对参数化建模过程进行了详细介绍。通过对比形态结果与焊点可接收标准,寻找能够产生合格焊点的参量范围,为实际焊点微连接生产工艺提供合理的工艺指导。

台湾地区技职本科教育的政策演进、发展特征和借鉴启示

技职教育在我国台湾地区经济社会发展中发挥着重要作用,提供强有力的人力资源支撑,其中本科层次占据主体。20世纪90年代中期以来,技职本科教育经历了快速扩张、稳步发展和优化调整三个重要阶段。相关部门推动系列重要政策和组织实施相应计划,既促进改革发展也努力纠正偏误。中国内地正处于建设完善现代职业教育体系和大力发展职教本科的关键期,可借鉴台湾地区技职本科发展经验,同时深刻分析其教训并做好风险防范。以经济社会需求为导向,合理规划职业本科教育发展路径和规模;坚定职业教育类型,强化职业本科教育内涵发展的政策供给;完善质量保障体系,以督导评估护航职业本科教育健康发展。

PBGA焊点形态对疲劳寿命的影响

通过Surface Evolver软件预测了塑料球栅阵列(PBGA)焊点形态,将焊点形态结果导入Ansys软件中进行-55~125℃热循环仿真实验,通过Coffin-Masson模型预测焊点寿命。选取焊点钎料量、焊点高度、下焊盘直径作为影响焊点寿命的主要因素进行了3因素3水平正交实验,通过均值响应分析得到了影响凸点寿命的最敏感因素及最优形态尺寸组合。结果表明对焊点寿命影响最大的因素为下焊盘半径,其次是钎料量,最后是焊点高度,且上下等大的焊盘具有较好的可靠性。

新形势下美国技术出口管制逻辑及启示建议

美国技术出口管制法案管制内容、力度和对象随着不同时期的国家关系、主要矛盾和国家战略而发生变化。当前,美国已将中国视为最主要的战略竞争对手并着手建立新型大国竞争范式。在此背景下,美国在国家安全与创新战略统领下,充分运用已有技术出口管制体系,组合实施“贸易-待遇-金融-投资”全方位制裁,企图阻碍中国产业链运转、阻止中国产业升级和遏制新兴大国崛起。当前,中国的科技发展已经进入从跟跑到领跑的关键阶段,面对美国技术出口管制呈现管制理由多样化、实施主体联盟化、核心领域宽泛化和管控规则定制化的发展趋势,应该积极构建自上而下的应战体系,同时增强自身维护技术出口安全的能力。

Design of an Interconnection Architecture and Sizing of Two (2) EPC Core Networks: The Case of Orange-Guinea

With the arrival of the 4G and 5G,the telecommunications networks have experienced a large expansion of these networks.That enabled the integration of many services and adequate flow,thus enabling the operators to respond to the growing demand of users.This rapid evolution has given the operators to adapt,their methods to the new technologies that increase.This complexity becomes more important,when these networks include several technologies to access different from the heterogeneous network like in the 4G network.The dimensional new challenges tell the application and the considerable increase in demand for services and the compatibility with existing networks,the management of mobility intercellular of users and it offers a better quality of services.Thus,the proposed solution to meet these new requirements is the sizing of the EPC(Evolved Packet Core)core network to support the 5G access network.For the case of Orange Guinea,this involves setting up an architecture for interconnecting the core networks of Sonfonia and Camayenne.The objectives of our work are of two orders:(1)to propose these solutions and recommendations for the heart network EPC sizing and the deployment to be adopted;(2)supply and architectural interconnection in the heart network EPC and an existing heart network.In our work,the model of traffic in communication that we use to calculate the traffic generated with each technology has link in the network of the heart.

Studying Design and Use of Healthcare Technologies in Interaction: The Social Learning Perspective in a Dutch Quality Improvement Collaborative Program

Designing technologies is a process that relies on multiple interactions between design and use contexts. These interactions are essential to the development and establishment of technologies. This article seeks to understand the attempts of healthcare organisations to integrate use contexts into the design of healthcare technologies following insights of the theoretical approaches of social learning and user representations. We present a multiple case study of three healthcare technologies involved in improving elderly care practice. These cases were part of a Dutch quality improvement collaborative program, which urged that development of these technologies was not “just” development, but should occur in close collaboration with other parts of the collaborative program, which were more focused on implementation. These cases illustrate different ways to develop technologies in interaction with use contexts and users. Despite the infrastructure of the collaborative program, interactions were not without problems. We conclude by arguing that interactions between design and use are not naturally occurring phenomena, but must be actively organised in order to create effects.

Research on the Formation Modes of Emerging Technologies Based on the Species Origin Theory

Based on the research on emerging technologies and ＂the technology species＂, this thesis tries to find out the homologous relations between emerging technology and new species. The theory of the new biology species in synthetic evolution and the modern genetics is referred in the research. The modes of forming emerging technologies are discussed through some examples of IT evolvement according to modes of the biology speciation. Finally, it is pointed out that the biology species origin theory can analogize continuously the research about the evolvement mode of every emerging technology, and the implications have been bought to enterprises based on the formation conditions of each mode.

虚拟现实技术在广告设计中的应用现状分析与设计实现

随着现代信息技术的迅猛发展,虚拟现实技术的发展前景更为广阔,技术日趋成熟,各行各业对虚拟现实技术的需求越来越强。其中,虚拟现实技术在广告设计领域得到广泛应用,效果显著,对广告业的创新发展很有帮助。因此,文章概述了虚拟现实技术,具体分析虚拟现实技术在广告设计中的应用优势、具体表现、现存问题,并论述了虚拟广告虚拟现实(Virtual Reality,VR)-产品数据管理演化系统(Product Data Evolvement System,PDES)的优化设计,旨在为广告设计中虚拟现实技术的应用和发展提供借鉴。

Fault self-repair strategy based on evolvable hardware and reparation balance technology

In the face of harsh natural environment applications such as earth-orbiting and deep space satellites, underwater sea vehicles, strong electromagnetic interference and temperature stress,the circuits faults appear easily. Circuit faults will inevitably lead to serious losses of availability or impeded mission success without self-repair over the mission duration. Traditional fault-repair methods based on redundant fault-tolerant technique are straightforward to implement, yet their area, power and weight cost can be excessive. Moreover they utilize all plug-in or component level circuits to realize redundant backup, such that their applicability is limited. Hence, a novel selfrepair technology based on evolvable hardware（EHW） and reparation balance technology（RBT） is proposed. Its cost is low, and fault self-repair of various circuits and devices can be realized through dynamic configuration. Making full use of the fault signals, correcting circuit can be found through EHW technique to realize the balance and compensation of the fault output-signals. In this paper, the self-repair model was analyzed which based on EHW and RBT technique, the specific self-repair strategy was studied, the corresponding self-repair circuit fault system was designed, and the typical faults were simulated and analyzed which combined with the actual electronic devices. Simulation results demonstrated that the proposed fault self-repair strategy was feasible. Compared to traditional techniques, fault self-repair based on EHW consumes fewer hardware resources, and the scope of fault self-repair was expanded significantly.

Six Generation Load Cells Solution Based Congestion Management Control Purpose

Several assessing efforts are approved making both communication and information technologies available.In addition to being a part of universal access and service,we aim at assessing the impact of radio access technologies on universal access indicators.The proposed work demonstrates the possibility of inter-working of all existing Radio Access Technologies(RATs),in a limited area presented in the Six Generation Radio Resources Allocation(6 G-A)network.We propose a solution for the Vertical hand Over(VHO)in 6 G-A heterogeneous system,that adopts Media Independent Handover(MIH)protocol to benefit between different used technologies in a direct communication firstly and facilitate,in addition,coordination between congestion controlmechanisms with themobilitymanagement entity.The mathematical model has been developed to deal with locality coverage and broadband needs,based on a methodological approach consisting in integrating parameters linked to access index through radio technologies.This approach has been applied.In practice,it has contributed to highlighting its relative simplicity of implementation,but it is not enough for sixgeneration system radio access networks.The congestion control mechanism is integrated within the vertical handover process,this proposition is used to prevent each presented congestion state.The media independent handover IS equipment,as well as six G-A equipment which are both considered as the whole architecture key equipment,perform and guaranty this related process.Efficient communication is established besides information exchange between various technologies.Achieved evaluation results are performant and prove that proposed mechanisms are efficient.Both simulation and tests results are accomplished.

偏振微波雷达探测大气研究进展及几个问题的考虑

近年国际上偏振微波雷达探测大气研究有了重要进展,成为雷达气象学研究的新热点,并可能成为天气雷达发展的重要方向。介绍了微波圆偏振技术现状和双线偏振测量技术体制的重要进展,以及近年在气象应用中所获得的最新研究结果,展望了偏振探测技术的应用前景。进一步讨论了开展偏振探测技术研究所应考虑的有关偏振类型、实现体制、方案设计、产品算法和波段选择中的问题,对偏振探测技术研究具有参考价值。

基于哈肯模型的产业生态系统演化机制研究

对中国产业生态系统演化机制的研究是生态工业领域的一项探索性工作。本文运用自组织理论中的哈肯模型,建立产业生态系统演化方程,以北京、上海等21个省市为样本进行实证研究,结果表明反映环境科技进步的环保生产率是产业生态系统演化的序参量,从自组织理论角度增强了生态工业主要依靠技术创新这一结论的可信性和说服力。

技术创新群落形成与演化的行为生态学研究

文章运用行为生态学理论和方法,在对技术创新群落形成与演化的行为生态学特征分析基础上,提出了技术创新群落形成与演化的四阶段CLC模型及其行为生态学机制,并探讨了技术创新群落形成与演化的内部条件和外部环境。

基于焊点虚拟成形技术的SMT焊点质量保证技术研究

基于焊点形态理论和焊点虚拟成形技术的表面组装技术焊点质量检测与控制技术的基本思想是,将利用图像获取及处理技术得到的实际焊点形态,与通过焊点虚拟成形技术形成的合理焊点形态进行比较,根据比较的差异,通过智能鉴别得出实际焊点组装故障的类型与产生主因,然后形成调整组装工艺参数的反馈信息对相关组装工艺进行调整控制,以达到提高和保证焊点组装质量的目的。在阐述其基本思想和原理的基础上,结合实例介绍了该技术的实现方法与步骤,对其中焊点图像的获取与处理、焊点质量的分析评价等主要内容与关键技术进行了研究和探讨,并对结果进行了分析验证。

中国高技术产业成长的时空演变特征及其空间布局研究

文章对中国高技术产业成长的时空演变特征进行分析和研究,结果表明:从时间序列上看,中国高技术产业呈现高增长率的成长和发展,无论是高技术产业年产值、增加值,还是利润和出口额等经济指标的年平均增长率均达到10%以上;但从地理空间上分析,各地区高技术产业成长、发展水平存在明显的差异性,电子通信设备制造业、电子计算机及办公设备制造业广东占有极显著的优势;医药制造业、医疗设备及仪器仪表制造业二个行业具有明显地区性优势的分别是浙江、广东、上海、河北和江苏、浙江、上海、北京;而航空航天器制造业的地区性优势分布在前期国家投资重点地区陕西、黑龙江、江西、辽宁。分地区高技术产业投入地理集中度指数和高技术产业产出地理集中度指数清楚地反映了我国高技术产业呈现较明显的集群发展态势,集群主要发生在以京津唐、长江三角洲和珠江三角洲三大地区。基于上述分析进一步探讨了中国高技术产业发展的空间布局问题,并提出菱形状态的高技术产业发展空间战略布局。

激光推进流场演化的高速阴影测量方法

介绍了高速阴影技术在激光推进流场演化诊断过程中的应用。采用了阴影技术和高速摄影相结合的方法,对激光推进流场演化过程进行了考察。由高速相机提供时序零时,控制激光器和闪光源的延迟时间,再对高速相机进行同步曝光,解决了高速阴影测量过程中高速相机、闪光仪和激光器的时序控制问题,实验获得了清晰的流场演化图像,为进一步研究提供了实验依据和便利条件。

技术创新、交易效率与专业市场制度演化

通过建立一个创新影响传导流程的分析框架,剖析技术创新、交易效率与专业市场制度演化之间的机理,在此基础上论证技术创新是影响专业市场制度演化的关键因素,其传导机理是:技术创新→交易成本、交易收益→交易效率→专业化分工→专业市场制度演化。在此理论分析的基础上,以浙江专业市场为例,对专业市场这一传统的市场组织的未来发展趋势进行展望。