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33. Random Jitter Beamforming for point-and-link communications.

Author

Kwak, Byung-Jae, Seon-Ae Kim, Young-Hoon Kim, and Nah-Oak Song

Abstract

We introduce a new concept of communication technology called point-and-link communications, which aims to bring convenience to the users of D2D communications in LOS situations. We also propose a new beamforming scheme called Random Jitter Beamforming (RJBF), which is a key component in implementing point-and-link communications. RJBF is designed to eliminate the harmful effect of the side lobes and improve the angular resolution of the conventional beamforming. Simulation results showing the performance of RJBF is presented. [ABSTRACT FROM PUBLISHER]

Published
2012
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40. Evaluer les effets de la gestion des connaissances.

Author

Jong-Ae Kim

Abstract

Copyright of IFLA Conference Proceedings is the property of IFLA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2006

41. Measuring the impacts of knowledge management.

Author

Jong-Ae Kim

Abstract

With the growing popularity of knowledge management, the need for frameworks for evaluating the impacts of knowledge management on organizational performance has been recognized by practitioners. Despite the wide implementations of knowledge management, there is yet no standardized framework for measuring the performance within organizations. This paper provides an overview of the approaches to evaluate the contributions of knowledge management implementations to organizational performance. It presents methods such as return on investment, balanced scorecard approach, qualitative case studies, and success case method to aid practitioners to identify and develop the evaluation frameworks. Thus, it seeks to serve as a foundation for further research and development. [ABSTRACT FROM AUTHOR]

Published
2006

43. Measurement of Total Cross Sections at Pohang Neutron Facility.

Author

Kim, Guinyun, Meaze, A. K. M. M. H., Ahmed, Hossain, Son, Dongchul, Young Seok Lee, Hengsik Kang, Moo-Hyun Cho, In Soo Ko, Won Namkung, Tae-Ik. Ro, Won-Chung Chung, Young Ae Kim, Kun Joong Yoo, and Jong Hwa Chang

Subjects
NEUTRON cross sections, COLLISIONS (Nuclear physics), FISSION cross sections, NUCLEAR physics, PHYSICS, LINEAR accelerators, PARTICLE accelerators
Abstract

The Pohang Neutron Facility, which consists of an electron linear accelerator, a water-cooled Ta target with a water moderator, and a time-of-flight path with an 11 m length has been operated since 2000. We report the status activities on the neutron total cross-section measurements in the neutron energy region from 0.01 eV to 100 eV by the neutron time-of-flight method at Pohang Neutron Facility. A 6Li-ZnS(Ag) scintillator with a diameter of 12.5 cm and a thickness of 1.5 cm has been used as a neutron detector. The background level has been determined by using notch-filters of Co, In, and Cd sheets. In order to reduce the gamma rays from Bremsstrahlung and that from neutron capture, we have employed a neutron-gamma separation system based on their different pulse shape. The present measurements for Ag, Hf, and Ta samples are compared with the previous ones and the evaluated data in ENDF/B-VI. The resonance parameters for Ag and Hf samples have been extracted from the transmission data by using the SAMMY code. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2005
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