Fourier transform

No matter where a person may come from, everyone encounters a similar journey. The journey that is heard in stories is symbolic to what anyone may go through in life. In the story “A worn path”, an old women goes through many obstacles as she is on the pathway to acquiring what she sought after. In order to better convey the hero’s journey in the story A Worn Path, Eudora Welty uses characterization, symbolism, and conflict. In the story characterization is used to describe the main character…

greenhouse effect is what leads to global warming, but how does that happen? Let’s start with some historical analysis of the topic. The greenhouse effect (or at least a rough version) was originally thought of and recognized by Jean Baptiste Joseph Fourier in 1824. Starting with the concept that the earth’s atmosphere acts as an insulator for the sun’s energy and heat, Fourier’s idea was recognized and theorized into what is now the known as the greenhouse effect. A more thorough description…

wavelengths gives information on the molecules interactions with its surrounding moieties (Paschalis, 2009). FTIR (Fourier Transform spectroscopy) spectra offer information on all tissues components (Wen et al. 2009). Human proteins and mineral constituents give intense, structure sensitive to infrared radiation modes (Paschalis, 2009). Figure 1, is an example of Fourier Transform spectrum of bone powder (Paschalis,…

3.2 Mechanochemical synthesis The mechanochemical method was employed to synthesis CP and MgCP where calcium hydroxide (CaOH2), phosphoric acid (H3PO4) and magnesium hydroxide (MgOH2) were used as precursors. Table 3.1 shows the parameter used by varying the weight percentages (wt. %) of Mg. Table 3.1: The weight percentages ratio for magnesium doped calcium phosphate Samples Parameter Calcium Hydroxide Ca(OH)2 (g) Phosphoric Acid H2PH03 (g) Magnesium Hydroxide Mg(OH)2 (g) Undoped CP 27…

affordable method for separating the 100 % agave tequilas from the mixed ones. The purpose of this study was to examine the composition of various samples of authentic tequila purchased in Mexico and Germany using ion chromatography (IC) and Fourier transform infrared (FTIR) spectroscopy. It was expected…

2 OFDM SYSTEM:- OFDM system is divided into three parts 1. multi carrier modulation 2. frequency division multiplexing 3. Orthogonal frequency division multiplexing. 1.Frequency division multiplexing:- Frequency Division Multiplexing is a form of signal multiplexing which involves assigning non – overlapping frequency ranges or channels to different signals or to each user of a medium. A gap is left between each of these channels to ensure that the signal of one channel does not overlap with…

SPEECH RECOGNITION INTRODUCTION Speech recognition is also said to be automatic speech recognition or computer speech recognition which means understanding voice of the human and performing any required task or the ability to match a voice against a acquired or provided vocabulary.¬¬ It is a process by which a computer takes speech signal and converts it into words in real time according to an algorithm implemented as a computer program. It is achieved by following certain steps and the…

B Sridhar et al (2012) studied Purification and Characterization of Biosurfactants. The emulsifications of biosurfactants were checked in various oils such as olive, coconut, sunflower and rice bran oils, the emulsification activity of biosurfactants. Pseudomonas aeruginosa had higher emulsification activity than Saccharomyces cerevisiae. While checking the sugar and lipid content in biosurfactants by phenol sulphuric acid method and vanillin reagent method, found high in Pseudomonas aeruginosa…

Abstract In this paper CuO-NH-NH2 nanoparticle was synthesized and used to remove anionic dyes from single and binary systems. The scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), Energy-dispersive X-ray spectroscopy (EDAX) and X-ray diffraction (XRD) were used to characterize the nanoparticle. Direct Red 80 (DR80) and Direct Green 6 (DG6) were used as anionic dyes. The effect of adsorbent dosage, dye concentration and pH on dye removal was evaluated. Kinetic…

The development of new drug discovery technologies like high throughput screening, combinatorial chemistry, etc. has led to the discovery of a large number drugs that are poorly water soluble.(1,2) Approximately 40% of the NCEs are poorly water soluble and has poor bioavailability.(3) The successful clinical use of these molecules requires the application of solubility enhancement based formulation approaches. Among the various solubility enhancement technique like use of cosolvents,…