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On the use of new generation mobile phone (smart phone) for retrospective accident dosimetry
Lee, J.I.,Chang, I.,Pradhan, A.S.,Kim, J.L.,Kim, B.H.,Chung, K.S. Pergamon 2015 Radiation physics and chemistry Vol.116 No.-
Optically stimulated luminescence (OSL) characteristics of resistors, inductors and integrated-circuit (IC) chips, extracted from new generation smart phones, were investigated for the purpose of retrospective accident dosimetry. Inductor samples were found to exhibit OSL sensitivity about 5 times and 40 times higher than that of the resistors and the IC chips, respectively. On post-irradiation storage, the resistors exhibited a much higher OSL fading (about 80 % in 36h as compared to the value 3min after irradiation) than IC chips (about 20 % after 36h) and inductors (about 50 % in 36h). Higher OSL sensitivity, linear dose response (from 8.7mGy up to 8.9Gy) and acceptable fading make inductors more attractive for accident dosimetry than widely studied resistors.
INSURANCE MARKET DEVELOPMENT AND MACROECONOMIC INTERACTIONS IN TWENTY-SIX COUNTRIES
RUDRA P. PRADHAN,MAK B. ARVIN,JOHN H. HALL,NEVILLE R. NORMAN 중앙대학교 경제연구소 2017 Journal of Economic Development Vol.42 No.4
This paper examines the cointegrating and causal relationships between insurance market development (IMD) and economic growth based on panel-data estimation techniques. It also investigates the dynamic interrelationships amongst a number of important macroeconomic variables on IMD-growth nexus. The sample consists of 26 countries observed over the period 1980-2013. We use six different indicators of IMD, covered under both insurance density and insurance penetration, to validate the robustness of our results. Our findings affirm a long-run equilibrium relationship between insurance market development, economic growth, and six other macroeconomic variables selected, namely broad money supply (relative to national income), real interest rates, inflation rates, urban population growth, youth dependency ratios, and government consumption expenditure (relative to national income). We use a panel vector auto-regression model to examine the nature of Granger causality among the variables. Most significantly, we find that IMD and some macroeconomic variables Granger-cause economic growth in the long run, irrespective of which measure of IMD we use.
RUDRA P. PRADHAN,MAK B. ARVIN,MAHENDHIRAN NAIR,JOHN H. HALL 중앙대학교 경제연구소 2022 Journal of Economic Development Vol.47 No.1
This paper examines the short-term and long-term dynamics between public sector debt, economic openness, and economic growth in European countries between 1990 and 2018. Using the panel vector error correction model, we find that both public debt and economic openness contribute to long-term economic growth in European countries. The empirical analysis also shows that there are strong endogenous links between public debt, economic openness and economic growth in Europe in the short run. These relationships suggest that governments in Europe should give careful attention to the co-curation of macroeconomic policies pertaining to public sector spending/taxation, economic openness, and economic growth.
Garillo, E.P.,Pradhan, R.,Tobioka, H. Asian Australasian Association of Animal Productio 1995 Animal Bioscience Vol.8 No.1
This study was carried out to investigate the effects of activated carbon (AC) on growth, ruminal charateristics, blood profiles and feed digestibility in sheep, using roughage-based or concentrate-based diets. Twelve Suffolk breed of sheep of similar age and weight were distributed into 4 groups in a $2{\times}2$ factorial design. Two groups were fed a roughage-based diet with (R + AC) and without AC (R - AC), while the other two were fed a concentrate-based diet with (C + AC) and without AC (C - AC), respectively. The addition of 0.3% AC was based on dry matter of feed offered to animals. The incorporation of AC in roughage and concentrate based diets had no marked effects on feed intake, daily gain and feed conversion of the animals within experimental diets. The results obtained might be due to the low level of AC added in the diet. The animal on both concentrate-based diets were higher than the roughage-based diets in terms of daily gain and feed conversion ratio. However, it was observed that the animals provided with AC in the concentrate-based diet did not suffer from diarrhea and easily adjusted to high concentrate feeding. Further, the pH value for all diets before feeding was noted to be similar. After feeding, however, pH was shown to be higher in R + AC (p < 0.05) than in C + AC diet. Rumen protozoa number was decreased after feeding for both + AC diets, but in C - AC diet it was higher than in the roughage-based diets. For ammonia-nitrogen, C - AC was found to be higher than C + AC diet and the roughage-based diets before feeding. Total volatile fatty acid concentration, propionate and valerate molar ratios for both diets and time of collection were not affected. However, acetate, butyrate and valerate molar ratios were observed to be affected by diets and time of collections. The diets with AC increased (p < 0.05) before feeding for acetate molar ratio, but not different within diet, however, the roughage diets were found to be higher (p < 0.05) in acetate than the concentrate diet. In the blood parameters, the glutamic pyruvic transaminase (GPT), red and white blood cell (RBC, WBC) counts and packed cell volume (PCV) did not differ within and among the diets. Likewise, the WBC differential count in both diets with either - AC or + AC were similar in trend. However, lymphocyte count was noted to be increased in R + AC than the R - AC diet. The addition of AC in both diets did not affect nutrient digestibilities within diets.