Search results

Filter

Filetype

Your search for "*" yielded 530042 hits

Errors in organizations: Opportunities for crisis management

In the traditional crisis management literature organizational errors are seen as something entirely negative, even though error-free organizations should be considered as a chimera (Clarke, 1999). At-tention to errors is an important characteristic of so called high reliability organizations (HRO). These organizations have a safety culture that function proactively and errors are understood as vi

Optical techniques for measurements of atmospheric trace gases

Differential optical absorption spectroscopy (DOAS) and differential absorption lidar (DIAL) have been used for measurement of atmospheric trace gases. A fully automated system for atmospheric pollution monitoring of a medium-sized city has been constructed, based on the DOAS technique. Detection of ammonia and aromatic hydrocarbons in the ultraviolet spectral region has been investigated and demo

Direct and inverse scattering from dispersive media

Direct and inverse scattering from dispersive media are studied in the time domain. The media are one-dimensional and homogeneous but can be impedance mismatched to the surrounding media. A time domain method is introduced where the reflection and transmission kernels are obtained from Volterra equations of the second kind. Numerical examples are given based upon both synthetic and measured data f

Promoting the best as an incentive : reply to Pluchino et al. on the Peter Principle

The Peter Principle states that employees tend to be promoted until they reach their level of incompetence. In a sophisticated simulation study, Pluchino et al (2010) confirmed a version of the principle. However, they also noted that their model has the counterintuitive consequence that “the best ways for improving the efficiency of a given organization are either to promote each time an agent at

Discontinuity preserving visual reconstruction by means of potential theory

Discontinuity preserving interpolation methods are often desirable in image reconstruction from sparse visual data. Two such schemes are constructed by interpreting the image as the potentialcause by some distribution of charges, and then detecting certain patterns (notably dipole curves) among the charges. Experiments have been performed on an ink-jet plotter, showing good performance.

Positioning Accuracy of a Parallel Kinematic Gantry-Tau Robot

Parallel robots are generally said to be more accurate and have a smaller workspace compared to serial robots. With the Gantry-Tau robot, a parallel robot with relatively large workspace was presented. This article examines the end-effector positioning accuracy of the Gantry-Tau robot. End-effector positioning errors arising from joint positioning or modeling errors are studied. A geometric approa