heat capacity ratio was calculated from measurements of the speed of sound in each gas. An apparatus designed to measure the wavelength and frequency of sound waves in each gas was used to determine the speed of sound as a frequency was passed through each gas. The apparatus consisted of a Kundt ’s tube‚ an osilliscope‚ a ruler‚ an audio oscillator‚ and a frequency counter. The experimental values of heat capacity were found to agree with the theoretical values within the range of uncertainty. This experiment
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Kenan-Flagler Business School The University of North Carolina Recency‚ Frequency and Monetary (RFM) Analysis RFM is widely used by direct marketers of all types for selecting which customers to target offers to. The fundamental premise underlying RFM analysis is that customers who have purchased recently‚ have made more purchases and have made larger purchases are more likely to respond to your offering than other customers who have purchased less recently‚ less often and in smaller amounts
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Doppler effect. The Doppler effect states that a change in frequency of a wave will occur for an observer that moves relative to the wave. This is seen in our everyday life‚ for example‚ when the siren of a police car or fire truck passes you‚ you are experiencing the Doppler effect. Key Variables Independent Variable: Original position of moving object (sound maker and sound recorder) Dependent Variable: Change in Wave Frequency (pitch of the note) Object moves at varying speeds of 5 mph
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Ultrasound instruments which are also known as sonographic instruments operate by using high frequency sound waves. These sound waves operate using a frequency range of 1 to 18 megahertz that can be used for imaging. These high-frequency sound waves are out of range of human hearing. The lower frequency of the sound waves produce less resolution but can produce images deeper into the human body. Higher frequency sound waves are capable of reflecting or scattering from smaller structures but are limited
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Ultrasound Quick Project Ultrasounds are sound waves with frequency beyond the human limits‚ therefore humans are unable to hear them. It even travels at exactly the same speed as sound in any medium. Humans can hear sound within the frequency range of about 20 to 20‚000 Hz‚ so any sound above 20 kHz is ultrasound. Ultrasound or ultrasonography is a medical imaging technique that uses high frequency sound waves and their echoes. The technique is similar to the echolocation used by bats‚ whales
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impedance matching on the interface between electro-acoustical transducer and electrical transmitter has been the most important subject to confirm the high transmitting efficiency. Because the impedance of a wide band transducer depends on signal frequency‚ it is difficult to design a matching network between power amplifier and the transducer for maximum power transfer. A novel method is proposed to attain the goal in which‚ impedance matching is achieved by designing a lumped network. The values
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INTRODUCTION Load frequency control (LFC) or Automatic generation control (AGC) is an emerging issue in electric power systems. The objective is to maintain the system frequency and the power exchange between the areas within specified limits‚ irrespective of sudden change in load. The prime mover governing system provides a means of controlling power and frequency; and this function commonly called Load Frequency Control or Automatic Generation Control. The automatic load frequency control (ALFC) loop
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International Journal of Mechanical Engineering and Technology ENGINEERING – INTERNATIONAL JOURNAL OF MECHANICAL (IJMET)‚ ISSN 0976 6340(Print)‚ ISSN 0976 – 6359(Online) Volume 3‚ Issue 3‚ Sep- Dec (2012) © IAEME AND TECHNOLOGY (IJMET) ISSN 0976 – 6340 (Print) ISSN 0976 – 6359 (Online) Volume 3‚ Issue 3‚ Septmebr - December (2012)‚ pp. 214-228 © IAEME: www.iaeme.com/ijmet.html Journal Impact Factor (2012): 3.8071 (Calculated by GISI) www.jifactor.com IJMET ©IAEME DESIGN AND DEVELOPMENT
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measuring tape The width of the study area was measured The slope of the beach was measured with a clinometers Pictures were taken together with observations identifying the coastal features The wave height of the study area was measured The wave frequency of the study area was measured using a stop-watch When The study took place on Thursday 15th May‚ 2014 from 8:30am-2:00pm at the Las Cuevas Bay‚ North Trinidad. This date and time were more convenient to students. The period in which this study
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mechanical system is involved. The vibrations involved at in these places will of high frequency. There will some places where the vibrations of lo0w frequency will be present which will also disturb the normal operation of the system or faultiness in the values measured by the system. These low frequency vibrations are mostly involved in the machinery used in the fields of medicine. So‚ depending on the frequency of vibrations they may be desirable for some applications like mobile phones and they
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