In this dissertation, we explore the potential of using PDR for program verification and - as product of this endeavor - present a sound and complete algorithm for intraprocedural verification of programs with static memory allocation that is based on Property Directed Reachability.

关键词：程序验证；算法设计；属性指示可达性

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我国便利店业态便是一个红海与蓝海交错，随着城镇化的提升与消费习惯的变迁容量持续稳定增长的终端市场，而且在购物移动转型中具备本地生活购物、服务、社交线下流量入口的核心地位，是未来零售渠道核心业态之一。经济发展与消费习惯变迁推动便利店兴起与发展。极致便利、精选品类+丰富服务、高效管理成就强大竞争力。便利店转型之变革求生：差异化经营和海外拓展推动新一轮增长。便利店转型之拥抱未来：移动转型本地生活购物、服务、社交入口。

关键词：经济发展；消费习惯；便利店；极致便利；精选品类

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Virtualization software is increasingly a part of the infrastructure behind our online activities.In this work, we investigate the verification of isolation properties for virtualization software.We identify large data structures as one of the biggest challenges in applying traditional formal methods to the verification of isolation properties in virtualization software.

关键词：形式化方法；虚拟化安全；模型；虚拟化软件；信息安全

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This paper contributes new theory and new experiments. For the former, we provide a succinct derivation of the square-root model based on optimal control theory. We present data from two experimental user studies, one a controlled (in-lab) study and the second an uncontrolled (online) study with a total of 94,580 timing measurements. We consider three two-parameter models that relate motion duration to the ratio of target distance over target size: LOG (the classic logarithmic function), SQR (square-root), and LOG' (logarithmic plus 1.0). We find that: (1) the data from the controlled and uncontrolled studies are remarkably consistent; (2) for homogeneous targets, the SQR model yields a significantly better fit than LOG or LOG', except with the most difficult targets (i.e., the ratio of target distance over target size is large) where the models are not significantly different; (3) for heterogenous targets, SQR yields a significantly better fit than LOG for easier targets and LOG yields a significantly better fit than both LOG and SQR on more difficult targets.

关键词：费茨定律；人机交互界面；时间动作研究；人体运动时间

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The report presents a systematic framework for automatically deriving high-level structures from the gate-level netlist of a digitial circuit and techniques And the author crafted a library ,leveraging formal verification techniques to further address the problem of a large implementation space per function, and recover structure from an unstructured netlist.

关键词：逆向工程；门级网表；形式化方法

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We study three electricity grids and develop a methodology to scale renewables penetration. Analyzing these grids yields key insights about rigid limits to renewables penetration and their implications in meeting long-term emissions targets.We argue that to achieve deep penetration of renewables, the operational model of the grid must be inverted, changing the paradigm from load-following supplies to supply-following loads.

关键词：现代电网；可再生能源；深层渗透；供给负载

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In this thesis, we consider three seemingly simple but fundamental problems to understand explicit and implicit information ows for control, as initial building blocks for a theory that we hope will eventually lead to novel and efficient designs for modern control systems.

关键词：线性系统；信息流；控制系统

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We present FlexPRET, a processor designed specifically for mixed-criticality systems by allowing each task to make a trade-off between hardware-based isolation and efficient processor utilization. FlexPRET uses fine-grained multithreading with flexible scheduling and timing instructions to provide this functionality.

关键词：混合临界系统；处理平台；FlexPRET；分级存储器；时间指令

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In this report, I present NbQ-CLOCK, a novel, lock-free variant of the Generalized CLOCK algorithm particularly suited for web-object caching. My solution benefits from Generalized CLOCK’s low-latency updates and high hit rates, and its non-blocking implementation makes it scalable with only 10 bytes per-object space overhead. I compare the solution to existing algorithms, including Intel’s Bag-LRU, and demonstrate that NbQ-CLOCK’s fast update operation scales well with the number of threads and in a in-memory key-value store prototype, NbQ-CLOCK offers an overall throughput improvement of as much as 9.20% over the best of the other algorithms. In addition, NbQ-CLOCK’s hit rate exceeds the next best algorithm’s hit rate by as much as 1.40%.

关键词：web缓存；非阻塞；时钟算法；LRU；队列

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全新的网络营销渠道：微博、微信、人人。高效低成本的品牌推广：社交网络、点评。线上+线下“全渠道”O2O：“沃尔玛+亚马逊”。背后需要重新梳理定价体系：“左右手互搏”。细分品类、“小而美”品牌的出现：黄飞红花生。适应线上的子品牌与新产品：罗莱LOVO。企业价值链的重新架构：盈利模式发生变化。移动互联下的商业法则：建设或融入“生态圈”。

关键词：电子新营销；新渠道；定价体系；新产品；商业模式变革；电子商务

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