Considering digital image features with high volumes and video data‚ especially in real-time applications‚ the use of classic encryption methods like DES‚ AES‚ ...‚ is not efficient in terms of being time cosuming. In this article‚ a new method is proposed to encrypt digital images‚ using chos systems and utilizing DNA patterns. A central idea in the method suggested is to produce a pseudo-random DNA strand using chaos functions‚ which an encrypted strand is created‚ using the random strand and the
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New forensic laser technique for hair analysis Using a new laser technique‚ Jim Moran and his colleagues at Pacific Northwest National Laboratory‚ have devised a method of separating out the parts of hair samples that can reveal details about the recent history of the person to whom it belongs. In their paper‚ published in Rapid Communications in Mass Spectrometry‚ they describe a process they’ve devised whereby hair samples are pulled apart‚ rather than burned as a whole before being measured
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4035‚ Communications IV Lecture Notes Prof. Derek Abbott Dr. Mark McDonnell‚ A/Prof. Bruce R. Davis School of Electrical and Electronic Engineering © The University of Adelaide. 4035 - Communications IV‚ Notes School of Electrical & Electronic Engineering School of Electrical & Electronic Engineering Lectures 4035 Communications IV Lectures: 18 Tutorials: 4 Lecturer: Prof. Derek Abbott‚ Rm N237 • Slides - These contain the salient points‚ but are not a complete coverage of topics
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2.3.7.2 Fourier Transforms Infrared Spectroscopy (FTIR). Compatibility studies of pure Zolmitriptan and excipients were performed via using fourier transformed infrared spectrophotometer (Shimadzu‚ Japan) in the range of 400-4000/cm-1 by using KBr disc method. A base line correction was made using dried potassium bromide KBr and
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The natural plant exudate gum tragacanth is obtained from the stem of the bush like plant “goat’s-horn”‚ Astragalus species. Gum tragacanth has been used commercially for well over 2000 years and is currently widely used as a thickener and emulsifier in emulsion systems in different pharmaceutical‚ food‚ cosmetic and diverse industrial uses. In addition‚ it is on the list of stabilizers that are permitted by Food and Agriculture Organization/ World Health Organization that could be used during the
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8 micrometers) Mid IR- (2.5- 50 micrometers) Far IR- (50-1000 micrometers) Most common region used is Mid IR btwn 2.5- 15 micrometers Mid IR: based on diffracting gratings but now current instrumentation are of Fourier transform type Far-IR: useful now that Fourier transform instruments are available. Can measure IR absorption‚ emission‚ and reflection in energy in order for a species to absorb IR radiation‚ it needs to undergo a net change in dipole moment (vibrational/rotational motion)
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Lecture Notes for Analog Electronics Raymond E. Frey Physics Department University of Oregon Eugene‚ OR 97403‚ USA rayfrey@cosmic.uoregon.edu December‚ 1999 Class Notes 1 1 Basic Principles In electromagnetism‚ voltage is a unit of either electrical potential or EMF. In electronics‚ including the text‚ the term “voltage” refers to the physical quantity of either potential or EMF. Note that we will use SI units‚ as does the text. As usual‚ the sign convention for current I
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Digital signal processor [edit] Typical characteristics Digital signal processing algorithms typically require a large number of mathematical operations to be performed quickly and repetitively on a set of data. Signals (perhaps from audio or video sensors) are constantly converted from analog to digital‚ manipulated digitally‚ and then converted again to analog form‚ as diagrammed below. Many DSP applications have constraints on latency; that is‚ for the system to work‚ the DSP operation must
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institute. The faculty members can also get help from this software by detecting proxy of students also. The Project actually describes the process behind implementing a voice recognition algorithm in MATLAB. The algorithm utilizes the Discrete Fourier Transform in order to compare the frequency spectra of two voices. Chebyshev’s Inequality is then used to determine (with reasonable certainty) whether two voices came from the same person or not. If the two voices matches each other than a present is
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PTU/BOS/EC/101/08-05-2004/BATCH 2004 Punjab Technical University‚ Jalandhar B.Tech. Electronics & Communication Engg. Study scheme 3rd Semester Course code AM-201 EE-201 EC-201 EC-203 Course Title Applied MathematicsIII Network Analysis & Synthesis Electronics Devices & Circuits Electronic Measurement & Instrumentation L 4 3 3 3 T 1 2 1 1 P 0 0 0 0 Int. 40 40 40 40 Ext. 60 60 60 60 TOTAL 100 100 100 100 Object Oriented CS –252 Programming using C++ Lab.-I (Electronic EC-205 Devices & Networks)
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