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RISS 인기검색어
- 검색키워드
- 저자 : Balagopal, P.G. (검색결과 4 건)
- 무료
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Balagopal, P.G.,George, N.A.,Venugopal, A.,Mathew, A.,Ahamed, M. Iqbal,Sebastian, P. Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.1
This prospective study records the tobacco related habits among the relatives of patients with advanced head and neck cancers who underwent both surgery and chemotherapy as part of their treatment from September 2009 to March 2010. A total of 200 relatives were interviewed (148 males and 52 females). 198 (99%) were aware of the fact that tobacco use can lead to cancer and 168 (84%) had any one of the habits. Smoking alone was reported in 36 (18%) individuals, pan chewing alone in 66 (33%) and multiple habits in 64 (32%). Alcohol and tobacco chewing alone was reported in one case each. There were change in habits following diagnosis of head and neck cancers among the relatives, 33 (16.5%) stopped their habits and smoking was reduced by 25% in 72 (36%)and by 50% in 63 (31.2%) individuals. However, 135 continued the habit even after the diagnosis of cancer in their relatives. Of note, 15 out of the 33 who quit the habit did it because of health advice given to them during the hospital visit.
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Balagopal N. Nair,Daishi Yoshikawa,Hisatomi Taguchi 한국막학회 2004 멤브레인 Vol.14 No.1
Direct Methanol Fuel Cell (DMFC) is considered as a candidate technology for applications in stationary, transportation as well as electronic power generation purposes. To develop a high performance direct methanol fuel cell (DMFC), a competent electrolyte membrane is needed. The electrolyte membrane should be durable and methanol cross- over must be low. One of the approaches to increase the stability of generally used polymer electrolyte membranes such as Nafion against swelling or thermal degradation is to bond it with an inorganic material physically or chemically. In Noritake Company, we have developed a novel method of reinforcing the polymer electrolyte matrix with inorganic fibers. Methanol crossover values measured were significantly lower than the original polymer electrolyte membranes. These fiber reinforced electrolyte membranes (FREM) were used for DMFC study and stable power output values as high 160 mW/cm2 were measured. The details of the characteristics of the membranes as well as I-V data of fuel cell stacks are detailed in the paper.
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COMPARISON OF DISCRETE TIME INVENTORY SYSTEMS WITH POSITIVE SERVICE TIME AND LEAD TIME
Balagopal, N,Deepthy, CP,Jayaprasad, PN,Varghese, Jacob The Kangwon-Kyungki Mathematical Society 2021 한국수학논문집 Vol.29 No.2
This paper investigates two discrete time queueing inventory models with positive service time and lead time. Customers arrive according to a Bernoulli process and service time and lead time follow geometric distributions. The first model under discussion based on replenishment of order upto S policy where as the second model is based on order placement by a fixed quantity Q, where Q = S - s, whenever the inventory level falls to s. We analyse this queueing systems using the matrix geometric method and derive an explicit expression for the stability condition. We obtain the steady-state behaviour of these systems and several system performance measures. The influence of various parameters on the systems performance measures and comparison on the cost analysis are also discussed through numerical example.
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Nair Balagopal N.,Yoshikawa Daishi,Taguchi Hisatomi 한국막학회 2004 멤브레인 Vol.14 No.1
Direct Methanol Fuel Cell (DMFC) is considered as a candidate technology for applications in stationary, transportation as well as electronic power generation purposes. To develop a high performance direct methanol fuel cell(DMFC), a competent electrolyte membrane is needed. The electrolyte membrane should be durable and methanol crossover must be low. One of the approaches to increase the stability of generally used polymer electrolyte membranes such as Nafion against swelling or thermal degradation is to bond it with an inorganic material physically or chemically. In Noritake Company, we have developed a novel method of reinforcing the polymer electrolyte matrix with inorganic fibers. Methanol crossover values measured were significantly lower than the original polymer electrolyte membranes. These fiber reinforced electrolyte membranes (FREM) were used for DMFC study and stable power output values as high 160 mW/cm2 were measured. The details of the characteristics of the membranes as well as I-V data of fuel cell stacks are detailed in the paper.
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