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Night Shift Entertainment is centrally located in Boston's Artisanal South End. Founded Over twenty Years ago, the company was framed around the success of the wedding industry's most celebrated band, Night Shift.
This paper presents the generation of optical carrier suppressed signal for RoF system. RoF refers to an analog transmission over fiber technology where light is modulated by radio frequency (RF) signal and transmitted over an optical fiber link to wireless access. Both optical carrier suppression and signal modulation are made by using a Dual-Drive Mach-Zehnder modulator (DD-MZM). Suppressed carrier modulation is achieved by biasing at the null point of DD-MZM. Optical carrier suppression improves the performance of RoF system such as link gain and noise figure (NF).In this research, a single RF at 2100 MHz having data rate of a 1 Gbps modulates the 1550.12 nm optical carrier in the DD-MZM. In this paper, the carrier suppression and performances of RoF system are investigated by theory and simulation. The various values of optical carrier suppression ratio can be obtained by adjusting the extinction ratio of the DD-MZM.
In this paper a new scheme is proposed for progressive image transmission over coded Orthogonal Frequency Division Multiplexing (OFDM) system with Low Density Parity Check Coding (LDPC). Trigonometric transforms are used in this scheme for improving the performance of the OFDM systems and reducing the PeakTo- Average Power Ratio (PAPR) of OFDM signal. It improves the error resilience ability and transmission efficiency for progressive image transmission over Additive White Gaussian Noise (A WGN) channel. The Set Partitioning In Hierarchical Trees (SPIHT) algorithm is used for source coding of the images to be transmitted. In the proposed scheme the transmit data sequence of the OFDM signal after Inverse Fast Fourier Transform (lFFT) is grouped into in-phase and in-quadrature components, then each component is transformed using either the Discrete Cosine Transform (DCT) or the Discrete Sine Transform (DST). The simulation results show that adding the DST to the system im
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studied the online price dispersion of hotel rooms in Mainland China and found mixed results as above Clemens et al. 2002 studied the US online travel market for air tickets from a product differentiation perspective with mixed findings
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Using quantitative approach, a descriptive comparative study was conducted to assess and compare the adolescent school children's knowledge, attitudes and beliefs regarding STIs/HIV in rural and urban settings in Sri Lanka participating 294 students. The study tool was self administered questionnaire. This study identified the lacuna in the STIs/HIV knowledge, attitudes and beliefs among adolescent students in both settings. More than half (74.5%) of the students had not heard about STIs but all students had heard about HIV/AIDS in both settings. Most of the students responded correctly identifying unprotected sex, blood transfusion and injecting illegal drugs as modes of transmission of HIV. Half of the students in both settings did not know that the use of condom is the main safe method for prevention and control of STIs/HIV. http://www.scirj.org/jul-2014-paper.php?rp=P0714155