1) signed digraphs
带号有向图
1.
In this paper, we study the problem about the characterizations of S 2NS signed digraphs which have close relationships with the S 2NS matrices.
据此研究与S2 NS矩阵直接相关的S2 NS带号有向图的特征刻画问题 。
2) Signed direct graph(SDG)
带符号的有向图
3) anti-symmetric signed digraph
反对称带号有向图
1.
Local bases of primitive non-powerful anti-symmetric signed digraphs with loops
带环的本原不可幂反对称带号有向图的局部基
4) signed directed graph
符号有向图
1.
After analyzing the information transfer characteristics of large-scale complex systems,a new fault description model-fuzzy probability signed directed graph(FPSDG) was proposed by introducing the status association probability,fuzzy information and object-oriented technology in SDG.
通过分析复杂系统的故障信息传递特性,在符号有向图(SDG)中引入了状态关联概率和模糊信息,并结合面向对象技术提出了一种新的故障描述模型——模糊概率有向图。
2.
Signed Directed Graph (SDG) is used for a mathematical model representing the influences among elements of the system, which considers the characteristic of system’s structure and can deal with the complex process of system in a large-scale, and it is a self-contained method to diagnosis system failures.
基于符号有向图(SignedDirectedGraph,SDG)的定性推理方法用有向图将故障传播模型化,并用节点间的符号逻辑关系定位系统的故障源,是一种完备的揭示系统故障的有效方法。
3.
There are two topics about the method being given: fault propagation digraph and signed directed graph( SDG) .
该文给出了基于图论的故障诊断原理,综述了基于图论的故障诊断研究现状,包括两种主要方法:基于故障传播有向图和基于符号有向图的诊断方法。
5) SDG
符号有向图
1.
Algorithms of SDG-based Fault Diagnosis with Unmeasured Nodes for Deaerator;
除氧器故障诊断的含未测节点的符号有向图方法
2.
Application of SDG in Chemical Hazard Assessment
符号有向图在化工安全评价中的应用进展
3.
On the basis of analyzing the theory of signed directed graph(SDG)technology,practical application of SDG qualitative model in computer aided HAZOP and fault diagnosis was discussed.
在分析符号有向图(SDG)技术的理论基础上,探讨了SDG定性模型在计算机辅助HAZOP安全评价和故障诊断中的实际应用,并针对石化领域中常用的加热炉设备,建立SDG模型进行HAZOP和故障诊断分析。
6) signed directed graph(SDG)
符号有向图
1.
The former method derives rules through rough set reduction of a genetic algorithm,while the latter transforms the cause-effect graph to rules by using the automatic reasoning result of a signed directed graph(SDG).
其中基于历史数据的规则提取方法通过基于遗传算法的粗糙集约简来实现;基于模型的规则提取方法利用了符号有向图(SDG)的计算机自动推理结果,将因果图转化为规则。
2.
The process signed directed graph(SDG) model represents the cause and effect linkages to connect the fault origin to the observed symptoms of the fault.
基于符号有向图(signed directed graph,SDG)的化工过程模型可以表征过程故障与故障源之间的因果关系,SDG故障分析方法通过有向图定性推理技术实现故障诊断。
3.
In view of the characteristics of modern chemical process flow,this paper models the process flow of chemical production by utilizing Signed Directed Graph(SDG) model,and obtains causality diagram that describes the mechanism of process flow.
针对现代流程工业的特点,利用符号有向图模型(SDG)对化工生产工艺流程进行建模,运用SDG的推理能力,将其因果图转化为产生式规则,获得对整个生产流程的规则描述。
补充资料：清代刺绣《金带图图轴》
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参考词条