نتایج جستجو برای: chang composite failure criterion
تعداد نتایج: 566335 فیلتر نتایج به سال:
The primary purpose of this study was to investigate the effectiveness of two different types of interviews—one that did (POSTICM) and one that did not (POSTI) embed a concept-mapping process—to elicit students’ postinstructional understandings about chlorofluorocarbons and their role in global atmospheric change (GAC). A chief criterion measure was accordance, the degree to which students held...
To find out how the representations of structured visual objects depend on the co-occurrence statistics of their constituents, we exposed subjects to a set of composite images with tight control exerted over (1) the conditional probabilities of the constituent fragments, and (2) the value of Barlow’s criterion of “suspicious coincidence” (the ratio of joint probability to the product of margina...
This paper is concerned with a progressive failure analysis methodology for fiber reinforced composite laminates combining various analytical models designed for investigating failure mechanisms at different length scales. The methodology here employs a fundamental mechanism based approach to predict failure or damage initiation with strong coupling between the multiple length scales. The discr...
The aim was to test the null-hypothesis that there is no difference in the cumulative survival rate of retained composite resin (CR) sealants and a high-viscosity glass-ionomer Atraumatic Restorative Treatment (ART) sealant in first permanent molars calculated according to the traditional and the modified retention assessment criteria over a period of 3 years. This cluster-randomized controlled...
C4.5 algorithm is the most widely used algorithm in the decision trees so far and obviously the most popular heuristic function is gain ratio. This heuristic function has a serious disadvantage – towards dealing with irrelevant featured data sources. The hill climbing is a machine learning technique used in searching. It has good searching mechanism. Considering the relationship between hill cl...
This study examined tenth-grade students’ (n = 263) problem solving ability (PSA) online through assessing students’ domain-specific knowledge (DSK) and reasoning skills (RS) in Earth sciences as well as their attitudes toward (AT) Earth sciences related topics in a secondary school of Taiwan. The students’ PSA was evaluated based on a previous model (Chang, C. Y. (2004, November 26–27). Trends...
Some cases of infant skull fracture fall under the category of forensic study where it is not obvious whether the head trauma happened due to an accident or abuse. To be able to determine the cause of the head trauma with sufficient accuracy, biomechanical analysis using finite element modeling of the infant cranium has been established. By simulating the trauma, one may be able to obtain the f...
Carbon / epoxy composite is one of the most useful polymer matrix composites that has special properties such as high strength-to-weight ratio, high hardness, high corrosion resistance, Resistance to nuclear radiation has high consumption in different industries such as aerospace industry. Therefor monitoring of loading of this type of composite is important. In order to determine failure mecha...
Background and Aims: Failure of bonding between artificial teeth and denture base material is a considerable problem for patients who wear dentures. Because of the cost of denture repair and the expensive price of foreign artificial teeth, this study was designed to compare the bond strength of composite and acrylic artificial teeth with heat-cured and auto-polymerized denture base resins.Mater...
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