The contents of H-3 and C-14 in groundwater and surface waters around low and medium-level atomic waste repository site in
Korea were determined. The concentrations of C-14 were in the range 0.186–0.287 Bq/L. The H-3 concentration of the groundwaters
and surface waters were <0.06–5.75 and 1.22–4.74 Bq/L. The average H-3 contents of west, north and south direction were 1.18 ± 0.12,
1.11 ± 0.78 and 2.85 ± 2.66. H-3 and C-14 concentrations in the south direction were relatively higher than west and north
direction samples. The surface waters sampled from catchment were four times higher than average H-3 concentration in precipitation.
The concentrations of H-3 and C-14 within 5 km area samples were much higher than other samples.
A synthesis of14C and35S double labelled hexylthiols: C6H13SH–1/1, 2, 3, 4–14C1/4/, /1-thiol[35S]/ and C6H13SSH–2/1, 2, 3, 4–14C1/4/, /2-thiol[35S]/ based on H235S and C6H12–/1, 2, 3, 4–14C1/4/ has been developed and described.
. It can be used to synthesize body protein, anti-cancer drugs, antiviral drugs, vitamin B 6 , and food and beverage additives.
The molecular formula of NTBLP is C14 H 19 NO 4 , the molar mass is 265.3 g mol −1 and the molecular structure is
The yield and average cross section for the reactions11B(p, n)11C,12C(p, )13N,13C(p, n)13N,
C(d, n)13N,14N(p, )11C,16O(p, )13N,16O(d, n)17F,16O(t, n)18F, and18O(p, n)18F have been measured in different compounds. The charged particles were created in the samples themselves either through recoil by scattering of 14 MeV neutrons off hydrogen and deuterium, or by the (n, t) reaction on6Li using thermal neutrons. The yields of reactions12C(d, n);16O(p, );16O(t, n) and18O(p, n) have been measured using proton, deuteron and triton spectra generated by 14 MeV neutrons in the reactions D(n, p)2n;6Li(n, d);7Li(n, d) and10B(n, d);7Li(n, t) and10B(n, t), respectively.
Authors:G. Newton, V. Robinson, E. Shaw, R. Smith, and H. Sims
Data from the quasi-elastic transfer reaction products140La and92mNb exhibit near zero effective ranges, flat excitation functions over large energy ranges and Q independent yields. These features are used to characterise quasi elastic reactions via the target-like product.
Authors:X. Z. Lan, H. R. Pei, X. Yan, and W. B. Liu
very important to petroleum industry. Alkanes and the mixtures are also useful models for study of polymer and biomembrane [ 16 ]. Among this family, tetradecane (C14 ) and dodecane (C 12 ) are isomorphous with medium-sized carbon chains [ 16 ]. Their
Financial markets in the Visegrad countries have undergone several changes in lending business over the past decade. This study evaluates the efficiency of the largest commercial banks by focusing on their lending decisions using Data Envelopment Analysis. First, we define the concept of efficiency, then we analyse loan efficiency between 2007 and 2013. The results indicate that average efficiency declined. When we studied the loan efficiency in each country separately, we found that Hungarian banks had the lowest efficiency while the highest efficiency was achieved mainly by Czech banks. The results of the study also suggest that efficiency is positively related to profitability and capital adequacy, and negatively related to the share of non-performing loans, which confirms the bad management hypothesis.
The h-index and EigenfactorTM values of top and specialized scientific/engineering journals are tabulated and combined to provide a simple graphical representation
of the journals. The information may be tailored to specific uses by respective stakeholders to aid decision making processes
with regards to scholarly research and scientific journal publications.
Authors:Joanna Wolszczak-Derlacz and Aleksandra Parteka
The purpose of this study is to examine efficiency and its determinants in a set of higher education institutions (HEIs) from several European countries by means of non-parametric frontier techniques. Our analysis is based on a sample of 259 public HEIs from 7 European countries across the time period of 2001–2005. We conduct a two-stage DEA analysis (Simar and Wilson in J Economet 136:31–64, ), first evaluating DEA scores and then regressing them on potential covariates with the use of a bootstrapped truncated regression. Results indicate a considerable variability of efficiency scores within and between countries. Unit size (economies of scale), number and composition of faculties, sources of funding and gender staff composition are found to be among the crucial determinants of these units’ performance. Specifically, we found evidence that a higher share of funds from external sources and a higher number of women among academic staff improve the efficiency of the institution.
The aim of the paper is to estimate cost efficiency and its determinants of the Czech and Slovak commercial banks within the period of 2005–2015. In this paper two-stage Data Envelopment Analysis (DEA) is used. In the first stage, I estimate the relative cost efficiency applying the input-oriented model with variable return to scale and find that the Czech banks were more cost efficient than the Slovak banks. The main reason of cost inefficiency is the excess of clients' deposits in the banks' balance sheet. In the second stage, I use the panel data analysis and estimate the determinants of cost efficiency in the two countries. I choose 8 bank-specific and macroeconomic factors that influence cost efficiency. The results show that the larger banks with higher liquidity risk and with a lower value of the net interest margin were more efficient. It confirms the reason of inefficiency determined from the DEA model. Banks were highly cost efficient during the economic expansion with a lower value of the inflation rate.