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General Managers' Overview
Published in Scott Wright, The Broadcaster's Guide to RDS, 1997
Quite possibly. Listeners will tune to your station to obtain the services their new RDS receiver offers. By using the RDS features to their fullest, you may attract new listeners who are interested in this new era of "interactive radio." By using the alternate frequency feature, you increase your listenership by sheer coverage area and keep people tuned to your station without requiring the listener to remember multiple frequencies or retune the receiver.
Complex scaling circle criteria for Luré systems
Published in International Journal of Control, 2019
An alternative frequency-domain approach for interpreting the circle criteria in the Luré problem is suggested in this paper, by exploiting the complex scaling stability criterion, that is, Theorem 2.1. The re-explicated circle criteria, namely Theorem 3.1 and its corollaries, have unified and sufficient conditions for various types of sector nonlinearities, which involve no open-loop poles of LTI plants by employing the complex scaling loci and the band of disks. The suggested circle criteria are equivalent to the positivity theorem, that is Proposition 3.1, and thus can provide sufficient conditions less conservative to some extent than those of the conventional circle criteria, namely Proposition 3.2. Further significance of this work is that it is also revealed that frequency-domain features in Luré systems have not been exhausted and fully exploited; there are points worth further investigating.
Biomechanical response of the human foot when standing in a natural position while exposed to vertical vibration from 10–200 Hz
Published in Ergonomics, 2019
Katie A. Goggins, Marco Tarabini, W. Brent Lievers, Tammy R. Eger
As suggested by Dong et al. (2013), an increased knowledge of the foot’s response to vertical vibration may also be used to quantify vibration exposures for risk assessments. Moreover, as researchers learn more about the biomechanical response of the foot and lower leg segment, members of the ISO committee for human health should consider the development of a standard to evaluate health risks associated with occupational exposure to FTV. The current study found the resonant frequencies for the toes, midfoot, and ankle ranged from 99–147 Hz, 51–84 Hz, and 16–39 Hz, respectively. These results may suggest that the current method of evaluating standing WBV exposure (ISO 1997) may not be appropriate for evaluating health/injury risk specifically to the feet, as the weighting curve (Wk) decreases the influence of frequencies above 10 Hz. The HAV standard (ISO 2004) may be more appropriate for identifying health/injury risk to the feet as it does not apply such a negative weighting (Wh) to the higher frequencies where the toes are known to resonate. Nevertheless, future research, including studies examining impedance and apparent mass, will be required before alternative frequency-weighting curves appropriate for determining health effects associated with exposure to FTV can be recommended.
An improved Huffman coding with encryption for Radio Data System (RDS) for smart transportation
Published in Enterprise Information Systems, 2018
C. H. Wu, Kuo-Kun Tseng, C. K. Ng, G. T. S. Ho, Fu-Fu Zeng, Y. K. Tse
In one group of RDS data structure, there is 64 bits information available and each data segment has its own meaning, and the remaining bits are controlled bits. RDS works in 16 modes, which have two corresponding versions, A or B. The first 5 bits of block 2 in every group represent a Group Type Code. The first 4 bits define 16 modes and the 5th bit defines the two versions. In the RDS standard protocols, each field also represents different meanings according to the Group Type Code, but they all contain Programme Identification (PI) code, Programme Type (PTY) code and Traffic Programme (TP) identification code. As shown in Figure 2, when the Group Type Code is 0A, the contents of block 3 are AF (Alternative Frequency) code and the contents of block 4 are PS (Programme Service) name.