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by conduction. As we know, Q=UA ∆T For the parallel flow heat exchanger shown the heat transfer is given by, dq= -m_h c_h dT_h= m_c c_c dT_c The heat transfer is also given as, dq=U(T_h-T_c )dA dT_h=(-dq)/(m_h c_h ) dT_c=dq/(m_c c_c ) dT_h- dT_c=d(T_h-T_c )= -dq(1/(m_h c_h )-1/(m_c c_c )) Putting the value of dq from previous equation, (dT_h- dT_c)/(T_h-T_c )=-U(1/(m_h c_h )-1/(m_c c_c ))dA ln (T_h2-T_c2)/(T_h1-T_c1 )=-UA(1/(m_h c_h )-1/(m_c c_c )) m_h c_h=q/(T_h1-T_h2 ) m_c…

For example, if σ = 45% and ρ = 0.2, then the standard deviation with 50 stocks would be 20.91%, and would rise to 22.05% when only 20 stocks are held. Such an increase might be acceptable if the expected return is increased sufficiently. Hennessy could contain the increase in risk by making sure that he maintains reasonable diversification among the 20 stocks that remain in his portfolio. This entails maintaining a low correlation among the remaining stocks. For example, in part (a), with ρ = 0…

Double Bond, J. Wiley & Sons, London, 1970. 34. C.M. Metzler, A. Cahill and D.E. Metzler, J. Am. Chem. Soc., 102 (1980) 6075. 35. B. Clarke, N. Clarke, D. Cunningham, T. Higgins, P. McArdle, M. Ni Cholchu and M.O’Gara, J. Organomet. Chem., 559 (1998) 55. 36. S.N. Pandeya, D. Sriram, G. Nath and E. De Clercq, Pharm. Acta Helv., 74 (1999) 11. 37. S.N. Pandeya, D. Sriram, G. Nath and E.De Clercq, Arzneimittel Forsch.,50(2000) 55, 32 38. W.M. Singh and B.C. Dash, Pesticides, 22 (1988)…

T h e S c a r l e t L e t t e r b y N a t h a n i e l H a w t h o r n e h a s m a n y s y m b o l s i n i t . A s y m b o l i s s o m e t h i n g used for representing something else. Three symbols used in the Scarlet Letter are the scarlet letter, Pearl, and the scaffold and all of these symbols are used differently by the Puritans and by the author. The meaning of the scarlet letter in the novel is for Hester to wear it because she has committed adultery. It is supposed to attract attention…

Bottled Water Is A Life Saver “In 2004, Americans, on average, drank 24 gallons of bottled water per person, making it second only to soft drinks in popularity”(Standage par.4). Bottled water, like many other things, has its advantages as well as its disadvantages. There have been many disputes over the controversial topic of whether the benefits of bottled water outweigh the costs. Bottled water has become very expensive in more than just one way. “Globally, bottled water is a staggering $46…

A lot of people who have used Lifespan Fitness TR200 Fold-N-Stor Compact Treadmill praised it for its easy to store capability and long-lasting performance. If you have a space problem, don’t worry much because this machine collapses easily and stores anywhere, making it your number one space-saving running equipment. Another advantage is the machine comes in fully assemble and you need not worry about assembling each part specifically. The manual is very user-friendly and teaches well how to…

N., & Thornton, A. (2012). Identification of Learning Mechanisms in a Wild Meerkat Population. PLoS ONE, 7(8). doi:10.1371/journal.pone.0042044 Nicolson, S. W., Veer, L. D., Kohler, A., & Pirk, C. W. (2013). Honeybees prefer warmer nectar and less viscous nectar, regardless of sugar concentration. Proceedings of the Royal Society B: Biological Sciences…

M., Lundmark, V., Kiesler, S., Mukophadhyay, T., & Scherlis, W. (1998). Internet paradox: A social technology that reduces social involvement and psychological well-being? American psychologist, 53(9), 1017. Lai, C.-Y., & Yang, H.-L. (2014). The reasons why people continue editing Wikipedia content–task value confirmation perspective. Behaviour & Information Technology, 33(12), 1371-1382. Mowday, R. T., Steers, R. M., & Porter, L. W. (1979). The measurement of organizational commitment.…

2,4-dichlorophenoxyacetic acid (2,4-D) (Sigma-Aldrich), 2,4 dichlorophenol (2,4-DCP) (Sigma-Aldrich), ferric sulfate (nH2O) (Carlo Erba), hydrogen peroxide (H2O2) (Carlo Erba), acetonitrile (Sigma-Aldrich) and Milli-Q water were used to perform all the experiments . All the reagents were used without further purification. Natural groundwater samples Samples were taken from groundwater wells localized in a small rural community (coordinates: 3º21’03.38” N, 76º26’24.51”) near to the…

References: 1. Catalytic Reduction of p-Nitrophenol and Hexacyanoferrate (III) by Borohydride Using Green Synthesized Gold Nanoparticles, G. Bhagavanth Reddy.; D. Ramakrishna,; A. Madhusudhan,; D. Ayodhya,; M. Venkatesham and G. Veerabhadram*.Journal of Chinese Chemical Society. 17, 2015; 420-428. 2. G.Bhagavanth Reddy,; A. Madhusudhan,; D. Ramakrishna,;D.Ayodhya,;M. Venkatesham.; G. Veerabhadram,; Green chemistry approach for the synthesis of gold nanoparticles with gum kondagogu:…