城市空间建设的高质量发展对中国式现代化具有重要的促进作用。本文从空间设计策略出发,建立可持续性量化系统模型(Sustainable Systems Integration Model,以下简称SSIM)对城市空间设计方案进行系统性评估,实现由“盲目无序建设”向“...城市空间建设的高质量发展对中国式现代化具有重要的促进作用。本文从空间设计策略出发,建立可持续性量化系统模型(Sustainable Systems Integration Model,以下简称SSIM)对城市空间设计方案进行系统性评估,实现由“盲目无序建设”向“科学定标量化”的方式转变。以天津生态城作为研究对象,首先重构空间设计指标系统。其次,对建立的空间情景系统进行优化组合,经过经济测算形成初选方案。再次,利用测度算法对关键指标进行评价,最终形成空间设计优选方案。结果显示:优选方案符合城市规划逻辑,符合地域振兴的演化策略。说明可持续性量化系统模型对城市空间设计具有较强的应用性。也为区域振兴的可持续发展提供了求解方法和创新思路。展开更多
The rapid development of the Network makes the comprehensive analysis as well as the quantitative evaluation of its security become more and mere important. This paper illustrates the major realization process of a Ne...The rapid development of the Network makes the comprehensive analysis as well as the quantitative evaluation of its security become more and mere important. This paper illustrates the major realization process of a Network Security Quantitative Evaluation System,which,from an intruder's angle ,established a Hierarchy Intrusion Relationship Graph by analyzing the credit degree fusion and relevancy of the secure information of the target network and by combining with powerful database information. At last, by applying some relative mathematics model and arithmetic, the paper analyzes and evaluates the security of this Network Hierarchy Intrusion Relationship Graph comprehensively and quantitatively.展开更多
量化状态系统(Quantized State System,QSS)方法是一种新的数值积分方法,在求解一般常微分方程(Ordinary Differential Equation,ODE)系统时,比传统基于时间离散的积分方法更具优势,但QSS方法存在量子选择困难的问题,为此提出一种带自...量化状态系统(Quantized State System,QSS)方法是一种新的数值积分方法,在求解一般常微分方程(Ordinary Differential Equation,ODE)系统时,比传统基于时间离散的积分方法更具优势,但QSS方法存在量子选择困难的问题,为此提出一种带自适应量子的量化状态系统方法(VQSS),它结合变步长龙格库塔方法中步长控制的思想,能够在计算过程中对量子进行自适应变化,以提高QSS算法的精度和效率。通过两个算例和一个汽车运动实例的仿真求解,验证了算法的可行性。将其与传统QSS, ODE45和ODE23等算法进行比较,结果表明VQSS具有更高的计算精度和计算效率。展开更多
文摘城市空间建设的高质量发展对中国式现代化具有重要的促进作用。本文从空间设计策略出发,建立可持续性量化系统模型(Sustainable Systems Integration Model,以下简称SSIM)对城市空间设计方案进行系统性评估,实现由“盲目无序建设”向“科学定标量化”的方式转变。以天津生态城作为研究对象,首先重构空间设计指标系统。其次,对建立的空间情景系统进行优化组合,经过经济测算形成初选方案。再次,利用测度算法对关键指标进行评价,最终形成空间设计优选方案。结果显示:优选方案符合城市规划逻辑,符合地域振兴的演化策略。说明可持续性量化系统模型对城市空间设计具有较强的应用性。也为区域振兴的可持续发展提供了求解方法和创新思路。
文摘The rapid development of the Network makes the comprehensive analysis as well as the quantitative evaluation of its security become more and mere important. This paper illustrates the major realization process of a Network Security Quantitative Evaluation System,which,from an intruder's angle ,established a Hierarchy Intrusion Relationship Graph by analyzing the credit degree fusion and relevancy of the secure information of the target network and by combining with powerful database information. At last, by applying some relative mathematics model and arithmetic, the paper analyzes and evaluates the security of this Network Hierarchy Intrusion Relationship Graph comprehensively and quantitatively.
