This empirical research was undertaken as part of a multi method programme of research to investigate unsupported claims made of object oriented technology A series of subject based laboratory experiments including an internal replication tested the e ect of inheritance depth on the maintainability of object oriented software Subjects were timed performing identical maintenance tasks on object ...

in data envelopment analyze (dea) the scale efficiency in the input-oriented ccr model is less than or equal to the scale efficiency in dea based on the fractional analysis (dea-r). also, the scale efficiency in case of multiple inputs and one output and vice versa the scale efficiencies are equal in dea and dea-r. in this paper, first, dea-r model with weight restrictions when there is relativ...

Satellite observation scheduling plays a significant role in improving the efficiency of satellite observation systems. Although many scheduling algorithms have been proposed, emergency tasks, characterized as importance and urgency (e.g., observation tasks orienting to the earthquake area and military conflict area), have not been taken into account yet. Therefore, it is crucial to investigate...

Stereo vision displays a well-known anisotropy: disparity-defined slant is easier to detect for rotations about a horizontal axis than about a vertical axis, and low-frequency sinusoidal depth corrugations are easier to detect when the corrugations are horizontal than when they are vertical. Here, we determined disparity thresholds for vertically and horizontally oriented depth corrugations wit...

2 sets of tasks—mental addition tasks and concept tasks—were given to 12 Ss and the effects of these tasks on 2 EEG rhythms—kappa and alpha—observed. On the mental addition tasks the difficulty of the task was shown to increase the output of kappa significantly but not the output of alpha. On the concept task, however, the difficulty of the task was shown to depress the output of alpha signific...

This empirical research was undertaken as part of a multi-method programme of research to investigate unsupported claims made of object-oriented technology. A series of subject-based laboratory experiments, including an internal replication, tested the eeect of inheritance depth on the maintainability of object-oriented software. Subjects were timed performing identical maintenance tasks on obj...

abstract there are varieties of researches for appraisal of results obtained by countries in olympics, using data envelopment analysis method. this research is aimed to make such appraisal for iranians’ results in olympics games using the dea method. before taking any measures, main issues of dea methods for appraisal of olympics games in the previous research were discussed, afterward optimiza...