In legal case-based reasoning (CBR), there exist problems concerning fuzziness, e.g., representation of precedents, their retrieval, and similarity measures. In our proposed fuzzy legal CBR system, the issues and features of precedent are characterized on the basis of the facts of precedent and statute rule. The case rule that is used for interpreting the court judgment, which cannot be obtained from the statute rule directly, is made by experts. Fuzziness is represented by membership functions. Features and case rules, written in terms of Compound Predicate Formula (CPF) and frame, are stored in a case base. Cases similar to a new case are retrieved by issues and features, and an inference is made by case rules. A user interface is devised for this system. The system proposed here will be used for law education, where the target law of the system is contract, especially as it relates to the United Nations Convention on Contracts for the International Sale of Goods (CISG).
Reinforced concrete chimney lining initiation time should be slightly behind the outer wall. Adopting blasting scheme of preliminary demolition and big blasting cut is helpful to control the collapse of chimney and reduce the blasting vibration directions. Combined with a real blasting engineering, blasting demolition design of the reinforced concrete chimney under complex environmental condition was introduced.
The effect of TIG-dressing on fatigue strength in support of the fillet weld of offshore platform was investigated experimentally in the paper. According to the causes in which most cracks are produced in actual structure, the model tests have been performed based upon cruciform weld bead characteristic. The TIG-dressing technique parameters were established by the actual structure and the fatigue specimen tests were done also. The life estimation equation after TIG-dressing is presented by least square method. The fatigue life used by TIG-dressing has increased over 100%. Therefore the TIG-technique gives a big potential for engineering application.
In order to completely consider affects of various subjective and objective factors for decision of soft ground improvement, according to quantitative index and qualitative index influencing soft ground improvement, a fuzzy integral decision model about definitive set was presented, based on improved Sugeno fuzzy integral on the basis of fuzzy measure. A computer program for applying the model to solve multi-objective decision making problem was given. The feasibility of its model was verified through the optimal choice for decision of soft ground improvement in practical engineering. The given example shows this model can be successfully used to make decision about soft ground improvement method of the expressway. At the same time, the decisional model above is useful and effective for evaluating the other complicated systems.
This paper presents a study for the interaction of a penny-shaped interfacial crack and a center of dilatation in an infinite bimaterial, which can model the rock fracture subjected to stress and thermal dilatation during some engineering process. The solution is obtained by decomposing the original problem into two auxiliary problems: (I) a center of dilatation near a bimaterial interface (no crack); and (II) a penny-shaped interfacial crack subject to internal tractions that cancel out those induced in auxiliary problem (I). The mode I, II and III stress intensity factors (SIFs) are calculated to investigate the possible propagation of the pre-existing penny-shaped interfacial crack. The convergence of the developed numerical method is checked, and the interaction of a penny-shaped interfacial crack and a center of dilatation are calculated and discussed.
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