摘要：通过工程实例，运用建筑结构加固补强的理论，解决框架结构在设沉降缝受限制条件下的扩建技术。阐述了框架梁、柱加固、基础拓宽的设计方法和加固补强的施工工艺等问题。

摘要：The adoption of both Nature-based Solutions(NbS)and a system perspective is a hot issue and an area in which there is much room for improvement in ecological protection and *** study takes Altay region as an example,an area located in Xinjiang,China,which is an important ecological corridor of the national key functional area and the core area of the Belt and Road but has a fragile ecological environment and needs much enhancement in ecological protection and *** by the concept of"mountains-rivers-forestsfarmlands-lakes-grasslands(MRFFLG)system is a life community",the coupling relationship of the various MRFFLG elements,the main ecological environmental problems and the integrated countermeasures for protection and restoration in Altay region have been analyzed in this *** study shows that Altay region has a typical meta-ecosystem of mountain,oasis,and desert,and the connections by rivers and lakes make the ecosystem links within the region much *** interweaving of resource-environmental-ecological issues of the aquatic ecosystem,degradation of the quality of terrestrial ecosystems such as forests,grasslands and farmlands,the increased ecosystem fragmentation and ecological risks are the major ecological environmental issues in this *** study takes the improvement of the ecosystem health and function in Altay region as the core goal of regional ecological protection and ***,we establish a zoning governance pattern from the perspective of ecosystem integrity;second,we design governance strategies for different zones with the goal of synergistic improvements in the ecosystem functions;and finally,we clarify the key engineering tasks in different zones from the perspective of ecosystem *** conservation and restoration of the MRFFLG system is a prime example of the application and development of NbS in *** paper constructs an analytical framework for identifying regional life communiti

摘要：本文设计了一种新型栅控双向可控硅晶闸管(GDDSCR)防护器件,用Rx元件代替可控硅晶闸管(SCR)的触发面来模拟SCR的触发和保持行为,实现了一种用于静电放电(ESD)防护的SCR宏模型.基于0.18μm BCD工艺制造的GDDSCR器件的传输线脉冲(TLP)测试结果与模型仿真结果的触发电压误差为0.008V,维持电压误差为0.006V.实验结果表明建立的SCR宏模型能够有效地模拟SCR器件在ESD应力下的物理机制.该宏模型以直.接的方式从被保护电路中使用的相同SCR结构中提取相关参数,大大提高了建模效率,消除了传统SCR模型仿真过程中存在的收敛性问题,对ESD保护电路的设计与验证具有重要意义.

摘要：用地效率是影响早期污水厂提标改造工艺选择重要因素之一。以海南省海口市某市政污水处理厂为例,不征地前提下,挖掘生化池处理潜力、优化小型构筑物布局、新建加砂高效沉淀池等方式提标改造。