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Generalized Analysis of Gasifier Performance using Equilibrium Modeling
Ravikiran, Anapagaddi,Renganathan, Thiruvengadam,Pushpavanam, Subramaniam,Voolapalli, Ravi Kumar,Cho, Young Sang American Chemical Society 2012 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Vol.51 No.4
<P>Thermodynamic modeling of gasification process provides a quick estimate of performance of the gasifier. Most of the earlier work on thermodynamic modeling is restricted to a particular feedstock–gasification agent combination and hence the results cannot be generalized. In the present work, the equilibrium modeling based on Gibb’s free energy minimization approach is used to analyze the performance of gasification of any fuel using oxygen or steam. The performance is analyzed at the carbon boundary point at which the cold gas efficiency is maximum. The gasification temperature, amount of gasification agent required, composition of syngas, and cold gas efficiency are predicted using Aspen Plus. The results are presented as contour plots on Van Krevelen coordinates (<I>H/C</I> vs <I>O/C</I>) and interpreted based on simplified gasification reactions. The performance for different feedstocks represented in Van Krevelen diagram is also analyzed. Finally, advantage of cogasification of feedstocks is highlighted.</P>
Strategies for Stimulating Customer Relationship: A Study of Some Public and Private Sector Banks
Ravi Kiran,Ridhima Sharma 한국유통과학회 2013 유통과학연구 Vol.11 No.3
Purpose - The present research has been undertaken to examine the Customer Relationship Management (CRM) strategies adopted by public and private sector banks in India. The initial part of research helps to identify the factors of overall satisfaction of customers. The study also tries to identify the key determinants of CRM of Indian banking. Research design, data, methodology - The present research uses a self-structured questionnaire having a reliability score of 0.817 to elicit responses from customers in New Delhi and surrounding areas in India to examine the CRM used by public and private sector banks for enhancing customer satisfaction. The scale had 32 questions covering customer perceptions related to overall satisfaction and factors contributing to CRM. Results - The results highlight that overall satisfaction comprises of two factors namely personalised Services; and reliability and dependability. The determinants of CRM as identified through survey are: Speed, safety and security; Employee CRM; on time services; customer targeting; and friendly and helpful staff. The results also highlight that safety and security was preferred to other factors by the respondents. Conclusions - The findings of this study show that in terms of performance private sector banks fared better in providing CRM services than public sector banks.