Browsing by Publisher "Elsevier Science"
Now showing items 1-20 of 33
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A new energy paradigm for Turkey: A political risk-inclusive cost analysis for sustainable energy
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Publisher and Date:(Elsevier Science, 2011)Implementing sustainable development policies in order to achieve economic and social development while maintaining adequate environmental protection to minimize the damage inflicted by the constantly increasing world population must be a major priority in the 21st century. While the emerging global debate on potential cost-effective responses has produced potential solutions such as cap and trade systems and/or carbon taxes as part of evolving sustainable energy/environmental policies this kind ...
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An assessment of mining efficiency in Turkish lignite industry
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Publisher and Date:(Elsevier Science, 2015)This article focuses on the mining activities of Turkish Coal Enterprises (TKI) the major lignite supplier in Turkey. First we analyzed the lignite production and overburden removal activities of TKI from a historical perspective and then employed the Principle Component Analysis to build a mining efficiency index of TKI and investigated its historical development since the establishment of the company. We found that labor productivity and operational structure have been the most important factors ...
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Antihepatitis B response to hepatitis B vaccine administered simultaneously with tetanus toxoid in nonresponder individuals
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Publisher and Date:(Elsevier Science, 2002)In this prospective study our aim was to test the effect of simultaneous administration of preS2 and S containing recombinant hepatitis B vaccine (S2SRHB) with tetanus toxoid (TT) to the individuals who did not respond after three doses of hepatitis B vaccine previously. There were three groups (healthy individuals pregnant women hemodialysis patients) each was divided into two subgroups as groups A and B. Group A received S2SRHB + TT and group B received only S2SRHB. We found that in groups ...
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Assessing the importance of international tourism for the Turkish economy: a social accounting matrix analysis
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Publisher and Date:(Elsevier Science, 2012)The international tourism sector has grown rapidly in Turkey since the 1980s and Turkey ranks among the top ten countries in terms of tourist arrivals and receipts. Previous studies on international tourism in Turkey are partial equilibrium studies which emphasized the importance of the sector for foreign exchange earnings employment creation and economic growth. The social accounting matrix (SAM) modeling approach is superior to partial equilibrium analysis as it takes into account intersectoral ...
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Carboxylic acid derivatives display potential selectivity for human histone deacetylase 6: Structure-based virtual screening molecular docking and dynamics simulation studies
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Publisher and Date:(Elsevier Science, 2018)Human histone deacetylase 6 (HDAC6) has been shown to play a major role in oncogenic cell transformation via deacetylation of alpha-tubulin making it a viable target of anticancer drug design and development. The crystal structure of HDAC6 catalytic domain 2 has been recently made available providing avenues for structure-based drug design campaign. Here in our continuous effort to identify potentially selective HDAC6 inhibitors structure-based virtual screening of similar to 72 461 compounds was ...
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Civilizational futures: Clashes or alternative visions in the age of globalization?
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Publisher and Date:(Elsevier Science, 2010)This article underlines the existing similarities between Samuel Huntington's civilizational approach hypothesis and the fundamentals of political Islam. The similarity pertains to the argument related to the gradual weakening of nation-states which also constitutes the main theme of the globalization debate. The civilizational approach and political Islam signify new efforts to reach a much larger political community and organization in world politics. Both of them argue that the formation of new ...
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Computing finite time non-ruin probability and some joint distributions in discrete time risk model with exchangeable claim occurrences
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Publisher and Date:(Elsevier Science, 2017)In this paper we study a discrete time risk model based on exchangeable dependent claim occurrences. In particular we obtain expressions for the finite time non-ruin probability and the joint distribution of the time to ruin the surplus immediately before ruin and the deficit at ruin. An illustration of the results is given and some implications of the results are provided. Comparisons are made with the corresponding results for the classical compound binomial model of independent and identically ...
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Contraction and deletion blockers for perfect graphs and H-free graphs
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Publisher and Date:(Elsevier Science, 2018)We study the following problem: for given integers d k and graph G can we reduce some fixed graph parameter pi of G by at least d via at most k graph operations from some fixed set S? As parameters we take the chromatic number chi clique number omega and independence number alpha and as operations we choose edge contraction ec and vertex deletion vd. We determine the complexity of this problem for S = {ec} and S = {vd} and pi is an element of{chi omega alpha} for a number of subclasses of perfect ...
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Critical phenomenon during photoinitiated gelation at different temperatures: A Photo-DSC study
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Publisher and Date:(Elsevier Science, 2011)The behaviour of photoinitiated radical polymerization of an 80 wt% epoxy diacrylate (EA) and 20 wt% tripropyleneglycoldiacrylate (TPGDA) mixture with 2-mercaptothioxanthone (TX-SH) photoinitiator was studied at different temperatures by using photo-differential scanning calorimetric (Photo-DSC) technique. All photopolymerization reactions were carried out under the same conditions. It was observed that all conversion curves during gelation at different temperatures present nice sigmoidal behaviour ...
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Cumulative prospect theory preferences in rent-seeking contests
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Publisher and Date:(Elsevier Science, 2018)We investigate the equilibrium behavior for agents with cumulative prospect theory preferences in rent-seeking contests. Characterizing the equilibrium effort levels we present results on the existence of equilibrium and total rent dissipation. (C) 2018 Elsevier B.V. All rights reserved.
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Double branch outage modeling and simulation: Bounded network approach
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Publisher and Date:(Elsevier Science, 2015)Energy management system operators perform regular outage simulations in order to ensure secure operation of power systems. AC power flow based outage simulations are not preferred because of insufficient computational speed. Hence several outage models and computational methods providing acceptable accuracy have been developed. On the other hand double branch outages are critical rare events which can result in cascading outages and system collapse. This paper presents a double branch outage model ...
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Energy consumption and income in Chinese provinces: heterogeneous panel causality analysis
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Publisher and Date:(Elsevier Science, 2012)Recently energy production in China fell behind energy consumption. This poses important challenges for the rapidly growing Chinese economy. As a consequence the causal relationship between energy consumption and GDP is an important empirical issue. This paper examines Granger causality between energy consumption and GDP in China using province-level data. The current paper extends the Granger causality analysis employed in previous studies by taking into account panel heterogeneity. Specifically ...
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Fluorescence study of film formation from PS/Al2O3 nanocomposites
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Publisher and Date:(Elsevier Science, 2014)Steady state fluorescence (SSF) and UV-vis (UVV) techniques were used to study the film formation behavior of pyrene (P) labeled polystyrene (PS) latex and Al2O3 (PS/Al2O3) composites depending on PS particles size and Al2O3 content. The close-packed arrays of PS spheres (SmPS: 203 nm ; LgPS: 382 nm) templates on clean glass substrates were covered with various layers of Al2O3 by dip-coating method. Two different film series (SmPS/Al2O3 and LgPS/Al2O3) were prepared in various Al2O3 layer content. ...
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Forecasting the Coal Production: Hubbert Curve Application on Turkey's Lignite Fields
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Publisher and Date:(Elsevier Science, 2016)The dependence on imported energy sources is one of the biggest challenges that Turkey and many other similar countries face in the 21st Century and the gap between production and consumption cannot be decreased without increasing the domestic production. Forecasting of domestic energy production therefore plays a vital role in order to be able to develop sound energy policies towards maintaining sustainable development. However although this question is essential in this respect especially for ...
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Implicit evaluations about driving skills predicting driving performance
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Publisher and Date:(Elsevier Science, 2018)Self-reported measures of driving skills have the potential shortcomings of the general self report methodology such as social responding and self-enhancement biases. In the present study the Implicit Association Test (IAT) procedure was adapted to measure the implicit evaluations of driving skills. The performance of IAT and an explicit self-report measure of driving skills were compared in predicting driver behaviors and performance. Ninetyone Turkish male drivers participated in the study. The ...
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In situ steady state fluorescence (SSF) technique to study drying of PAAm hydrogels made of various cross-linker contents
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Publisher and Date:(Elsevier Science, 2009)Drying experiments of polyacrylamide (PAAm) gels were performed using steady-state fluorescence (SSF) spectrometer. Pyranine (P) was introduced as a fluorescence probe and intensity of P from various crosslinker content gel samples was monitored. It was observed that the intensity of P increased during the in situ drying processes. Gravimetrical and volumetric experiments were also performed. An empirical model was derived and introduced to determine the desorption coefficient D of water molecules ...
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Lignite resources of Turkey: Geology reserves and exploration history
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Publisher and Date:(Elsevier Science, 2014)This article aims to emphasize the importance of lignite which is the mostly used domestic energy source in the Turkish energy mix by briefly overviewing its geology reserves and exploration. Lignites are distributed in mostly continental sedimentary basins of Tertiary age all over the country. The lignite-bearing basins display the characteristics of different geological settings of which grabens and half-grabens are the most common ones especially in western Anatolia. The geological and chemical ...
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Measurement of bivariate risks by the north-south quantile points approach
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Publisher and Date:(Elsevier Science, 2014)This paper attempts to determine the Value at Risk (VaR) and Conditional Value at Risk (CVaR) measures for the sum of bivariate risks under dependence. The computation of these risk measures is performed by the north-south quantile points of bivariate distributions. The Farlie-Gumbel-Morgenstern (FGM) copula model is chosen to express dependence of bivariate risks. The behaviors of VaR and CVaR are examined by varying dependence parameter values of the copula model and probability levels of the ...
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Municipal solid waste management via multi-criteria decision making methods: A case study in Istanbul Turkey
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Publisher and Date:(Elsevier Science, 2018)In contemporary era solid waste management has become an important issue for developing countries. Rapidly increasing population higher life-standards and technological advancements consistently increase the amount and the diversity of solid waste. In such a complicated environment municipal authorities need to develop the most effective disposal solution to manage the ever-growing municipal solid waste. In this study various disposal techniques that are utilized globally are investigated and ...
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On concomitants of upper record statistics and survival analysis for a pseudo-Gompertz distribution
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Publisher and Date:(Elsevier Science, 2014)This paper presents upper record statistics and their concomitants for a bivariate pseudo-Gompertz distribution about paired lifetime variables. Survival and hazard functions are derived for the distribution. The survival and hazard functions are displayed for some selected values of the parameters of concern. Interpretations are given for the potential reliability and actuarial applications of the obtained results. (C) 2013 Elsevier B.V. All rights reserved.