SEARCH

Found 520 related files. Current in page 1

frequency sirius 2 3

Use of instructional resources in Senior High School  accounting lessons: The tale of teachers and l

The use of instructional resources makes teaching and learning less arduous. It enhances learners’ ability to grasp what is taught with ease. Yet most teachers fail to apply the relevant teaching and learning resources in the instructional intercourse. This study explored the views of Senior High School accounting students and teachers on the use of instructional resources in accounting instructions. In all, 12 accounting teachers, who were selected purposely, and 151 accounting students, who were selected randomly, from four selected Senior High schools in Cape Coast Metropolis responded to a set of questionnaire. Frequency and percentages were used in the data analysis. The study found that accounting teachers hardly used instructional resources to promote understanding in accounting lessons. In most cases, the appropriate instructional resources that could be used were not available. It was further noted that the key barriers to use the appropriate instructional

Histopathological and Cytogenetic analysis in oral  potentially malignant disorders and oral squamou

Tobacco related oral cancer occurs due to accumulation of genetic alterations induced by the genotoxins present in betel quid. The objective of the study was evaluate the cytogenetic damage in the peripheral blood of oral cancer patients and control subjects by anaysing the structural aberrations (STAs) .The frequency of STAs was analyzed in 60 histopathologically confirmed oral potentially malignant disorders (OPMDs) and oral squamous cell carcinoma (OSCC) patients. STAs showed a significant P value between the Controls, OPMDs & OSCC cases through ANOVA.

Generation of Optical Carrier Suppressed Signal for  Radio-over-Fiber (RoF) System Using Dual-Drive

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.

Image Transmission with COFDM Using Trigonometric  Transform

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

Some interesting issues about rameesh online payment

Moreover, with increasing frequency, employers and employees alike are seeking answers to the question: many employers legally monitor employee e-mail and Internet use? Administrators of any of these hosts can easily eavesdrop on the mail traffic.

Frequency and Clinical Significance of Conus Artery and Its Variant  Third Coronary Artery (TCA) in

In most of the cases two coronary arteries supply oxygenated blood to the heart, the right coronary artery (RCA) and the left coronary artery (LCA). One of the important branches of RCA is the conus artery (CA) which supplies the infundibulum of the right ventricle or pulmonary conus.

Online Product Support - Generac Power Systems, Inc.

All input connections in one single area High coolant temperature shutdown Low oil pressure shutdown Low coolant level automatic shutdown Low fuel pressure Overspeed automatic shutdown Adjustable cranking timer Adjustable exercise timer Oil drain extension Cool flow radiator Closed coolant recovery system UV/Ozone resistant hosesWatertight state of the art electrical connectors Mainline circuit breaker Oil drain extension to frame rail Radiator drain extension Battery charge alternator 10 Amp static battery charger Battery and battery cables Battery rack Fan and belt guards Isochronous governor Coolant HeaterBuilt-in kW, kVAR and power factor meters Watertight electrical connectors Rodent proof construction High efficiency, low distortion Generac designed alternator Vibration isolated from mounting base Matching Generac transfer switches engineered and tested to work as a system All components easily accessible for maintenance Electrostatically applied powder paintInnovative design and fully prototype tested UL2200 Listed Solid state frequency compensated digital voltage regulator Dynamic and static battery charger Sound attenuated acoustically designed enclosure Quiet test for low noise level exercise Acoustically designed engine cooling system High flow low noise factory engineered exhaust system State of the art digital control system with H-100 microprocessor control panel

Factors of Bluetooth Technology to Mitigate Interference with Wi-Fi

Bluetooth wireless technology (BT) operates in the unlicensed Industrial, Scientific, Medical (ISM) band in the 2.4GHz frequency range. It randomly uses 79 1Mhz wide channels ranging from 2.402MHz to 2.480MHz. Each channel is occupied for a maximum time slot of 625us. During this time the radio must change the operating frequency, receive or transmit data, and provide enough off time before switching to the next hop frequency. In reality, the time the radio is actually transmitting on a given channel is much less and is dependent on the amount of data being transmitted. WIFI WiFi or 802.11 b/g, also operates in the same ISM band as BT. Due to complicated modulation techniques, 802.11g channels are 20MHz wide while 802.11b channels are 22MHz wide. This means a common WiFi channel can occupy from 20 to 22 BT channels. COURTESY: HTTP://EN.WIKIPEDIA.ORG/ WIKI/IEEE_802.11B-1999 INTERFERENCE For an RF signal to be received by the radios receiver, the RF signal must contain enough energy to be detected by the receiver circuit. The minimum receive level is known as the receivers sensitivity. This is similar to the lowest whisper that a human ear can detect. What if there happens to be two signals present at the same time and both are greater than the receiver’s sensitivity? Which signal will the radio detect? One would think that it would not be able to correctly detect either signal. That would be true if both signals are close to the same power level. If one signal had a higher power level than the other signal by a specific amount, the radio would be able to detect the more powerful signal. This is similar to a human ear being able to clearly understand members at a dinner table while there are many others talking at tables that are further away. The minimum ratio of power level for two signals when a radio can correctly detect the desired signal is known as the carrier/interferer ratio, or C/I. This means that two RF signals can exist on the same frequency at the same time without causing interference if the ratio of their power levels meet the radios C/I specification.

DVG-5112S VoIP Gateway User's Manual - D-Link

© 2007 D-Link Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-Link logo are trademarks of D-Link Corporation/D-Link Systems Inc.; Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link Corporation disclaims any proprietary interest in trademarks and trade names other than its own. Warranty: please contact your D-Link Authorized Reseller or the D-Link Branch Office nearest your place of purchase for information about the warranty offered on your D-Link product. Information in this document is subject to change without notice. FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation.

DVG-2016S/2032S VoIP Gateway User's Manual - D-Link

© 2008 D-Link Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-Link logo are trademarks of D-Link Corporation/D-Link Systems Inc.; Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link Corporation disclaims any proprietary interest in trademarks and trade names other than its own. Warranty: please contact your D-Link Authorized Reseller or the D-Link Branch Office nearest your place of purchase for information about the warranty offered on your D-Link product. Information in this document is subject to change without notice. FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‧ Reorient or relocate the receiving antenna. ‧ Increase the separation between the equipment and receiver.

« previous  123456789