FT-IR spectroscopic FTIR spectroscopy was conducted to analyze functional groups and identify structural characteristic of each fraction. The spectrum obtained by Thermo Nicolet Avatar 370. All samples powder were mixed with potassium bromide to prepare tablet. The FT-IR spectra were recorded between wavelengths of 4000 and 400 cm−1. 2.5. Functional properties 2.5.1. Surface tension
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solution to its pure vapour pressure p∗ by its mole fraction in solution χa . a pa = χa p∗ a This allows us to calculate the mole fraction of 2-propanol χp (in the solution with the dissolved unknown) to the solutions vapour pressure pp and the vapour pressure of pure 2-propanol p∗ . p χp = pp /p∗ p 1 CHEM 3411‚ Fall 2010 Solution Set 5 Additionally‚ we know the solution only contains 2-propanol and the unknown with moles fraction of χp and χu respectively‚ and therefore χp + χu =
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n-propanol. This can be seen in the simple refractive graphs for n-propanol since each consecutive 5 mL have traces of both water and n-propanol. For example‚ the n-propanol simple refractive graph were spread out throughout the graph with the mole fractions of 0.73‚ 0.75‚ 0.83‚ 0.571. Also‚ the temperatures are spread out throughout the graphs for both simple and fractional distillation. For example‚ the simple distillation had its temperature increasing constantly since the initial volume at about
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Autism Spectrum Disorder Felix Maymi Nova Southeastern University Life-Span Human Development PSYC 2350 Roberta Arrigo Autism Spectrum Disorder Key Findings: Population Attributable Fractions for Three Perinatal Risk Factors for Autism Spectrum Disorders‚ 2002 and 2008 Autism and Developmental Disabilities Monitoring Network Autism is a developmental disability that affects a person’s verbal and non-verbal communication‚ understanding of language‚ and socialization with peers. The
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population have equal probabilities of being chosen. Some basic terms • • • • N - the number of cases in the sampling frame n - the number of cases in the sample NCn - the number of combinations (subsets) of n from N f = n/N - the sampling fraction 1. Simple Random Sampling The simplest form of random sampling is called simple random sampling. • • Objective: To select n units out of N such that each NCn has an equal chance of being selected. Procedure: Use a table of random numbers
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Tweet spammers are driven by several goals‚ such as to spread advertise to generate sales‚ disseminate pornography‚ viruses‚ phishing‚ or simple just to compromise system reputation. First‚ we crawled a near-complete dataset from Twitter‚ containing more than 54 million users‚ 1.9 billion links‚ and almost 1.8 billion tweets. Second‚ we created a labeled collection with users “manually” classified as spammers and non-spammers. Third‚ we conducted a study about the characteristics of tweet
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and fire. These operations create a high chance of deforestation before sufficient recovery can occur for healthy trees to re-grow. To monitor these changes to the forest‚ scientist use satellite observations and satellite-based forest canopy gap fraction maps. The measurements are timed over a period of years‚ mainly in the span of 4-6 years. Within these years‚ studies are conducted to measure the level of damage distributed across the forest and the chance of deforestation. There are roughly 120
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fluids‚ and the volume fraction of each of the fluids in each computational cell is tracked throughout the domain. The tracking of the interface between the phases is accomplished by the solution of a continuity equation for the volume fraction of one (or more) of the phases. For the ‘q’th phase‚ this
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protein loading and the bound proteins were eluted with a linear gradient of NaCl (0-0.5M) in the same buffer over 10 CV at a flow rate of 1mL/min. The negative ions (Cl-) in the salt solution were competed with protein in binding to the resin. Fractions of 2mL were collected and the purity was assessed by 10% SDS-PAGE. 3.5 Determination of the Concentration of the DNA Polymerase SK72 The amount of protein was measured using the commercialized Bradford reagent as described by Bradford (1976)
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Chapter 8. Phase Change Simulations This chapter describes the phase change model available in FLUENT and the commands you use to set up a phase change problem. Information is organized into the following sections: Section 8.1 : Section 8.2 : Section 8.3 : Section 8.4 : Overview of Phase Change Modeling Phase Change Modeling Theory User Inputs for the Phase Change Model Solution Strategies for Phase Change Problems 8.1 Overview of Phase Change Modeling in FLUENT FLUENT can be used to solve uid
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