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Aoccdrnig to a rscheearch at an Elingsh uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht frist and lsat ltteer is at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae we do not raed ervey lteter by itslef but the wrod as a wlohe.
 
Prof Gopalan receives a new patent
Friday, 24 July 2009

Congratulations to Dr. Kaliappan Gopalan, Professor of Electrical and Computer Engineering on receiving another new patent as follows.

Audio steganography method and apparatus using cepstrum modification
 
United States Patent No. 7,555,432
KaliappanGopalan
June 30, 2009
 
Abstract
Audio steganography methods and apparatus using cepstral domain techniques to make embedded data in audio signals less perceivable. One approach defines a set of frames for a host audio signal, and, for each frame, determines a plurality of masked frequencies as spectral points with power level below a masking threshold for the frame. The two most commonly occurring masked frequencies f1 and f2 in the set of frames are selected, and a cepstrum of each frame is modified to produce complementary changes of the spectrum at f1 and f2 to correspond to a desired bit value. Another aspect of the invention involves determining a masking threshold for a frame, determining masked frequencies within the frame having a power level below threshold, obtaining a cepstrum of a sinusoid at a selected masked frequency, and modifying the frame by an offset to correspond to an embedded data value, the offset derived from the cepstrum.
 
Engineering students help design cooling towers
Thursday, 30 April 2009

 
Purdue Alumni Calumet (PAC) Outstanding Student Award
Wednesday, 29 April 2009
Purdue Alumni Calumet (PAC) Outstanding Student Award

The spring 2009 recipient of the PAC Outstanding Student Award is Tyamo Okosun. Tyamo will graduate with a Bachelor of Science Degree in Mechanical Engineering. As the award recipient, Tyamo will receive a plaque, $500 monetary award and he will represent his graduating class by offering the traditional student response at Commencement.

 
Tyamo has served as a Supplemental Instruction Leader for General Thermodynamics II (Fall 2008) and Heat Transfer classes (Spring 2009). He has been one of the key members of the Purdue Calumet NASA 2008 Moonbuggy Team, conducting and supervising the design and analysis of the suspension system for PUC’s new engineering student-designed Moonbuggy, including axles, wheels, and shocks using ProE and FEA software programs.

 
Since spring 2007, Tyamo has conducted four research projects and received several research awards. His presentations include:
· “The Effect of the Angle of Attack on an Airfoil’s Lift and Drag”, Student Research Day, Purdue University Calumet (March 2007);
· “Lift and Drag: Continuing Challenges in Aerodynamics” at the University of KwaZulu Natal, Durban, South Africa (August 2007);
· “Lift and Drag: Continuing Challenges in Aerodynamics” at the Third Annual LSAMP/AGEP Conference, Bloomington, IN (November 2007); and
· “Determining the Optimum Velocity of an Airbus A310 by Utilizing CFD” Student Research Day, Purdue University Calumet (March 2008).

 
Tyamo has received numerous honors and awards including – Outstanding Student Award, 2007-2008 and 2008-2009; Who’s Who among Students in American Universities and Colleges, 2008; Vice Chancellor’s Academic Award, 2006-2007; 2007-2008; and the Best and Brightest Scholarship. He is also an honors student.

 
Tyamo has been accepted into the Ph.D.in Mechanical Engineering program at Purdue’s West Lafayette campus, where he plans to advance research in the aerospace industry.
Last Updated ( Friday, 08 May 2009 )
 
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