Photocatalytic degradation of methylene blue using TiO2 nanoparticles Nupur Mittal Chemical Engineering‚ IIT (BHU) Varanasi. Abstract: The aim of this research is to reduce the pollution caused by methylene blue dye in waste water coming from textile industries. For this purpose‚ TiO2 nanoparticles are made as they show good photocatalytic activity in degradation of dyes into harmless products. Synthesis is done using titanium butoxide and 2-propanol. The particles formed were a little larger
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Enfermagem‚ Latino. Predictive Validity of the Braden Scale for Pressure Ulcer Risk. 2011 January. www.eerp.usp.pr/rlae. Enfermagem study implicates the efficiency of Braden scale as an indicative measures for PU development. Covering four intensive care units of general private hospital considering certain criteria of first‚ second and third assessment of Braden Scale‚ the study is indeed another step to obtain validation that using the scale is effective by achieving cut -off score of thirteen
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ECONOMIES OF SCALE When a firm moves from small scale to large scale production‚ the average cost of production of each unit falls. The reasons for which this happens are known as economies of scale – they are the benefits which result in the cost savings of large scale operations which come about when a firm expands. In other words‚ economies of scale are advantages reaped by firms engaging in large scale production. There are two types of economies of scale. They are: * Internal economies
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University’s wooded areas‚ the oldest was created in 1989 the second was created in 1994 and the youngest plot was created in 1999. For the hypothesis to be tested‚ there were soil PH meters to test the amount of PH in each plot’s soil. The hypothesis was incorrect; there was not a significant difference in the means of the PH from the oldest plot compared to the youngest plot. Introduction The definition of vegetation is plants considered collectively especially those found in a particular area
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CIA III Psychological Measurement and Statistics Likert Scale: A Critical Analysis By‚ Mahika Sharma Likert Scale: A Critical Analysis Introduction The Likert Format arises from the scale for measuring attitudes (Kaplan‚ & Saccuzzo‚ 2001)‚ the first of which was originated in 1932 by Rensis Likert (Edmondson‚ 2005). The rationale behind development of the Likert Scale by Rensis Likert was to measure psychological attitudes in a “scientific” way in 1932 and later in 1934 to expand upon the scaling
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Economies of scale Definition Reduction in long-run average and marginal costs‚ due to increase in size of an operating unit (a factory or plant‚ for example). Economics of scale can be internal to a firm (cost reduction due to technological and management factors) or external (cost reduction due to the effect of technology in an industry). Diseconomies of scale Definition Increase in long-term average cost of production as the scale of operations increases beyond a certain level
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Human Sexuality 21 Professor Lanoix December 4‚ 2012 Pros and Cons of the Kinsey’s Scale Sex was such a horrible topic to talk about‚ but a biologist of Indiana University introduced a scale that broke the silence. The silence changed due to this biologist named Alfred C. Kinsey (1894-1956). Kinsey broke the silence because before the scale everyone would keep their sexual orientation to themselves and most likely did not tell anyone. In other words‚ he was a great influence to people because
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differences between the Stanford Binet Intelligence Scale and the Wechsler Intelligence Scale. Intelligence: According to the Oxford Dictionary in psychology terms intelligence is the general mental ability involved in calculating‚ reasoning‚ perceiving relationships and analogies. It is also the ability to learning quickly‚ storing and retrieving information‚ using language fluently and adjusting to new situations. Stanford -Binet Intelligence Scale In 1857-1911 Alfred Binet invented the method
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Economies of scale The long run – increases in scale A firm’s efficiency is affected by its size. Large firms are often more efficient than small ones because they can gain from economies of scale‚ but firms can become too large and suffer from diseconomies of scale. As a firm expands its scale of operations‚ it is said to move into its long run. The benefits arising from expansion depend upon the effect of expansion on productive efficiency‚ which can be assessed by looking at changes in average
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Returns to Scale Returns to scale is a concept that tries to explain the behaviour of the output in relation to the change in the total scale of operations of the firm. A change of scale of operations means a change in the total size of the firm‚ i.e. a change in both labour and capital of the firm. For determining the returns to scale‚ we need to calculate the Output Elasticity where: Output Elasticity = % change in Output/% change in all inputs The different types of returns to scales are:
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