range 0.05≤x≤0.20 were synthesized by standard solid state reactions. Fe and Cu substitution effects on the phase stabilityand electrical performance in the parent bismuth vanadate and was investigated by combining results obtained fromPowder X-ray diffraction (PXRD)‚ Differential Thermal analysis (DTA)‚ Thermogravimetric analysis (TGA)‚Scanning Electron Microscopy(SEM) and AC impedance spectroscopy. The PXRD results show that the composition x= 0.05 and 0.07 have monoclinic while for x= 0.10 orthorhombic
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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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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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4002DFPHAR PHYSICAL PHARMACEUTICS Particle Size Analysis The study of particle dimensions is important in many areas of manufacture and technology. Many solid materials are at some point powder or granular in form e.g. foods (grain‚ flour‚ sugar)‚ ceramics and building materials (sand and cement). In pharmaceutical development and manufacture‚ particle size greatly influences physical properties such as powder flow‚ powder mixing‚ drug dissolution‚ deposition from inhaler devices and the stability
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NANYANG TECHNOLOGICAL UNIVERSITY School of Electrical and Electronic Engineering Laboratory Experiment ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Laboratory Report ------------------------------------------------- ------------------------------------------------- For ------------------------------------------------- -------------------------------------------------
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Since light has a dual nature‚ it can travel both like a particle and like that of a wave. As the light travels from a person’s eyes‚ images can be form as it is reflected by the mirror. Properties such as reflection‚ refraction‚ interference and diffraction is identified in this study. Mirrors being specifically used as an optical instrument‚ gathers light and forms images‚ and is therefore the most common apparatus used in observing the porperties light particels and waves have. Similarly‚ we see
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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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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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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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