Phased Array Radar Advanced Mobile Robotics Conventional Detection Platforms • RADAR • SONAR • LIDAR 1 Conventional Detection Limitations • • • • • High Cost Limited Resolution Limited Scanning Frequency Unwanted Interference Mechanical Failure What is a Phased Array Antenna? • In wave theory‚ a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern
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Extreme Ultraviolet Lithography MD JAWWAD REZANOOR (113001040); AMLAN SEN(092100040); MIZANUR RAHMAN(093052040) Azimur Rahman School of Engineering‚ Presidency University‚ Dhaka Abstract- Extreme Ultraviolet lithography (EUVL) is the leading technology‚ widely believed to take semiconductor lithography to the next generation. EUVL is the technology being considered for printing circuits at the 32nm node and below in a high volume manufacturing (HVM) environment fab. Compared to the traditional
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Physics Formulas: Mechanics Mechanics is the oldest branch of physics. Mechanics deals with all kinds and complexities of motion. It includes various techniques‚ which can simplify the solution of a mechanical problem. Here are some of the often required physics formulas falling in mechanics domain. Motion in One Dimension The physics formulas for motion in one dimension (Also called Kinematical equations of motion) are as follows. (Here ’u’ is initial velocity‚ ’v’ is final velocity‚ ’a’ is
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NANYANG TECHNOLOGICAL UNIVERSITY School of Electrical and Electronic Engineering Laboratory Experiment ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Laboratory Report ------------------------------------------------- ------------------------------------------------- For ------------------------------------------------- -------------------------------------------------
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theories Kepler’s inverse square law of light intensity and distance can be explained by both wave and particle theories Foucault’s determination of the change in the speed of light in refraction supports the wave theory over the particle theory diffraction effects support the wave theory over the particle theory interference effects can be successfully explained by the wave theory only Maxwell’s equations can explain the properties of light by assuming that it consists of electromagnetic waves
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Abstract The Greek-Roman Isis temple is located on the west bank of Luxor; Upper Egypt was made of sandstone and decorated with different kinds of wall paintings. It suffers from many causes of deterioration and degradation mainly ground water‚ salt weathering‚ and different types of dirt accumulations on the relives and paint surface such as soot‚ grease‚ wax‚ biodeteriorated colored patches‚ bat patches‚ waste of birds and even house fly specks. All these lead to the gradual disappearance of paintings
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2131cm-1(-CΞN‚CΞC‚-C-H strech)‚1786 cm-1(-C=O of ketones and esters)‚1643 cm-1(-C=O of amides and carboxylic acids stretch )‚1045 cm-1(-C=O of esters). Fig. 4 FTIR Spectra of Cocos nucifera Silver Nanopparticles (CNAgNPs) 3.4. XRD Analysis X-ray Diffraction (XRD) analysis confirmed the existence of crystalline silver nanoparticles in the sample. The Bragg’s reflections observed in the XRD pattern at 2θ = 31.411‚ 37.86‚ 37.77‚ 37.68‚ 32.56‚ 38.04‚ 77.21‚ 77.12 were Shown in Fig. 5. Sharp lines in the
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Light that is visible to the human eye is a small portion of the electromagnetic spectrum which can vary in colour based on the wavelength of what is being seen at any particular time. This visible light has a primary function of causing electrons to become more active with higher energy rates. The colour that is seen revolves around the size of this portion which is noted as the wavelength. White light is a culmination of all colours which is the cause of it being the brightest. Furthermore‚ when
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Biophysicist Maurice Wilkins was born on December 15‚ 1916‚ in Pongaroa‚ New Zealand. He worked with the Manhattan Project before turning to biophysics. He produced the first image of DNA fibers. Also a conflict did occur between him and his colleague Rosalind Franklin‚ helped do the Watson and Crick double-helix model shared in 1953. Wilkins got the Nobel Prize for his work. He died on October 6‚ 2004. Early life Maurice Wilkins was born by two Irish parents. When he was born his father‚ Edgar
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Shoreline: A Note of Caution” [3]. Bender‚ C.J. and Dean‚ R.G. (2003). “Wave Field Modification by Bathymetric Anomalies and Resulting Shoreline Changes: A Review with Recent Results” [4]. Berkhoff‚ J.C.W. (1972). “Computation of Combined Refraction-Diffraction”. 13th Coastal Engineering Conf.‚ Vol [5]. Berkhoff‚ J.C.W.‚ Booy‚ N.‚ and Radder‚ A.C. (1982). “Verification of Numerical Wave Propagation Models for Simple Harmonic Linear Water Waves”
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