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Svjetlana Cvjetan, Helle-Viivi Tolk, L. B. Lauc, Ivana Čolak, D. Dordević, L. Efremovska, B. Janićijević, A. Kvesić et al.

Djenan Ganic, X. Gan, M. Gu

There has been an interest to understand the trapping performance produced by a laser beam with a complex wavefront structure because the current methods for calculating trapping force ignore the effect of diffraction by a vectorial electromagnetic wave. In this letter, we present a method for determining radiation trapping force on a micro-particle, based on the vectorial diffraction theory and the Maxwell stress tensor approach. This exact method enables one to deal with not only complex apodization, phase, and polarization structures of trapping laser beams but also the effect of spherical aberration present in the trapping system.

Xiang Zhang, Malik Cabaravdic, K. Kneupner, B. Kuhlenkoetter

Industrial robots are introduced to belt grinding processes of free-formed surface with elastic wheel nowadays in order to obtain high quality product and high efficiency. However, it is a laborious task to plan grinding paths and write programs for the robot. To release people from it partially, it is necessary to simulate the belt grinding processes which are useful for path generating and dynamic robot control. In this paper, we present a framework of the robot controlled belt grinding simulation system and some key issues in it. We enhance the global removal model to local process model, which can simulate the grinding process more exactly. We also point out the bottleneck of the real-time simulation and put forward a neural network based regression method to meet this difficulty. At the end of the paper, some simple simulation examples are given.

M. Handzic, Don Agahari

This paper reports a case study of a knowledge sharing culture in a large Australian consulting firm, Deloitte. An exploratory study was conducted to examine the extent to which knowledge sharing behaviour occurs within Deloitte and its relationships with the firm's core values, structures and practices. The study identified widespread knowledge sharing behaviour as demonstrated by a high degree of communication and collaboration activities. It also identified the firm's core values and corresponding procedures that cultivated trust, redundancy, staff empowerment, motivation and remuneration. Structures and practices were also found to convey a high degree of leadership commitment and provision for continuous learning.

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