Cluster analysis is a useful technique in multivariate statistical analysis. Different types of hierarchical cluster analysis and K-means have been used for data analysis in previous studies. However, the K-means algorithm can be improved using some metaheuristics algorithms. In this study, we propose simulated annealing based algorithm for K-means in the clustering analysis which we refer it a...

We studied the seated buttock pressure distribution in six paraplegic patients by means of computerized pressure mapping. They were all male and their age ranged from 18 to 48 years old. Their level of paralysis varied from Th5 to L1. Five kinds of wheelchair cushions were studied: an air cushion, a contour cushion, a polyurethane foam cushion, a Cubicushion (which is made of polyurethane foams...

The evaluation of the safety level in concrete structures should be done considering the stochastic behavior of main involved parameters not only in ultimate conditions but also in serviceability and durability ones. In fact, particularly in concrete structures, the large variability of fundamental mechanical parameters, may give rise to important deviations from the behavior expected if a dete...

Grasping power (GP) by means of functional electrical stimulation (FES) was measured in a patient with C6 complete tetraplegia. This was compared with GP by means of the dynamic tenodesis effect, the flexor hinge splint and the GP of normal female. Palmar grasp strength by means of FES was approximately 16 % of the control group and 2.4 times greater than the flexor hinge splint. Lateral grasp ...

The Chinese government invested considerable resources in developing the GIS software industry. Expert evaluation has been used as an important mechanism for assisting the distribution of R&D funds and to assess the performances of the funded projects. The expert evaluation serves as a resolution of the information asymmetry between the funding agencies and the GIS software developers. The form...

At the present time, data size and complexity of clustering tasks (e.g. machine learning) demand parallel computing on multiple cores. However, designing parallel applications using threads and blocking is prone to non-trivial errors. This thesis uses an structured parallelization approach called algorithmic skeletons to build a model to express variants of one of the most used algorithms in da...

Ever since Abraham Flexner formalized the idea of premedical education in 1910, medical educators have argued about how best to prepare students for medical school. This back-and-forth about the premedical years has focused almost exclusively on the range and content of the required course work; noticeably absent from the debate is consideration of the ways in which the experience of the premed...

Molecular descriptors have been explored extensively. From these studies, it is known that a large number of descriptors are strongly correlated and capture similar characteristics of molecules. In this paper, we evaluate 919 Dragon-descriptors of 6 different categories by means of clustering. Also, we analyze these different categories of descriptors also find a subset of descriptors which are...