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Ivan D. Trofimov(Ivan D. Trofimov ),Ahmed Sharaan(Ahmed Sharaan ) 서울대학교 경제연구소 2022 Seoul journal of economics Vol.35 No.4
This study examines GDP per capita convergence by adjusting the official data by the size of the shadow economy and the transaction sector. The findings demonstrate the reduction of income per capita absolute distance from the relevant benchmarks and smaller income per capita dispersion in a global panel and sub-groups. The intra-distributional mobility of economies and the gamma convergence were absent. The stochastic convergence was observed in all specifications, both vis-à-vis the world average or the high-income economies. With regard to club convergence, the stability of the relative transition paths and the club composition were indicated (hence, little convergence across the clubs and more substantial convergence within the clubs).
Ivan Ivanšić ...et al KYUNGPOOK UNIVERSITY 2000 Kyungpook mathematical journal Vol.40 No.1
We develop a theory of P-shape for the class of compact Hausdorff spaces and for certain CW-complexes P. The complexes P which are allowed are those which, for each given weight α, admit a P-invertible map of a compact Hausdorff space of weight ≤ α and of extension dimension ≤ P onto the Tychonoff cube I^(α) . In particular it will be seen that classical shape theory comes from the case P = {pt}. Our concept is based on extension theory, and hence for any extension equivalent CW-complex P' , P-shape and P' -shape will be identical. Indeed, if the extension theories of P and P' are related so that P ≤ P' , then we shall obtain a relation between their shape functors, one factoring through the other.
Health care and the ‘Common Pool’ Federalism in Canada
Ivan Jankovic(Ivan Jankovic ) 한국캐나다학회 2013 Asia-Pacific Journal of Canadian Studies (APJCS) Vol.19 No.2
Canadian federal system is often praised as a ‘laboratory of change’ capable of producing gradually a high quality policy innovation. In the same time, the system is described as extremely decentralized. This paper challenges both claims by concentrating on the case study of health care policy which is usually taken as an ultimate success story of Canadian federalism. By using the model of ‘common pool’ federalism, the paper argues that Canadian system is characterized by a systematic mismatch between who makes the taxing and who makes the spending decisions, which leads to a paradoxical situation in which the new programs are relatively easy to ‘federalize’, whereas it is very difficult to scale them back or reform, once they are entrenched. Combination of spending decentralization and taxing centralization blurs the lines of accountability allowing both orders of government to profit from increased spending and protect-ing them from blame if the program fails to deliver. The case study of health care system provides the evidence for this theory.
Ivan V. Ivanov,Daria V. Lazurenko,Andreas Stark,Florian Pyczak,Alexander Thömmes,Ivan A. Bataev 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.1
This paper presents a comparison between the “classical” and the modified Williamson–Hall and Warren–Averabach methodsapplied to an analysis of the microstructure of -titanium. The microstructural parameters of cold-rolled titanium specimenswere retrieved from analysis of the X-ray diffraction (XRD) peaks. The high-quality XRD patterns were received at the P07beamline (The High Energy Materials Science) at the German electron synchrotron. The dependence of the crystallite size,the inhomogeneous microstrains, the average dislocation density, the dislocation cut-off radius and some other parameterson the plastic strain were estimated. The results clearly indicate that, due to the consideration of the dislocation contrasteffect, the modified models are a much better fit to the experimental data in comparison with the “classical” models. Theresults of hardness and corrosion resistance measurements of Ti samples can be explained based on the results obtainedfrom the XRD analysis.
Distribution of Stress in Deformation Zone of Niobium Microalloyed Steel
Ivan Jandrlić,Stoja Rešković,Tin Brlić 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.4
Microalloyed steels today represent a signifi cant part of total world production and processing of steel. Although widelyused, there are scarce data on the stress distribution in the deformation zone of these steels. Research was carried out ontwo steel grades, both low-carbon structural steels with the same basic chemical composition, with one of them additionallymicroalloyed with niobium. Differences in the stress distribution in the deformation zone between two tested steels werecontinuously observed and measured using the methods of digital image correlation and thermography. It has been foundout that niobium microalloyed steel has signifi cantly more complex material fl ow and stress distribution in the deformationzone when compared to the plain low carbon steel.
(Re-) Meshing using interpolative mapping and control point optimization
Ivan Voutchkov,Andy Keane,Shahrokh Shahpar,Ron Bates 한국CDE학회 2018 Journal of computational design and engineering Vol.5 No.3
This work proposes a simple and fast approach for re-meshing the surfaces of smooth-featured geome-tries prior to CFD analysis. The aim is to improve mesh quality and thus the convergence and accuracy of the CFD analysis. The method is based on constructing an interpolant based on the geometry shape and then mapping a regular rectangular grid to the shape of the original geometry using that interpolant. Depending on the selected interpolation algorithm the process takes from less than a second to several minutes. The main interpolant discussed in this article is a Radial Basis Function with cubic spline basis, however other algorithms are also compared. The mesh can be optimized further using active (flexible) control points and optimization algorithms. A range of objective functions are discussed and demon-strated. The difference between re-interpolated and original meshes produces a metric function which is indicative of the mesh quality. It is shown that the method works for flat 2D surfaces, 3D surfaces and volumes.
Ivan Ho 대한핵의학회 2023 핵의학 분자영상 Vol.57 No.1
Metastasis from unknown primary is always a challenge because finding the true primary tumor significantly affects subsequentmanagement. We present a case of malignant abdominal wall nodule initially diagnosed as metastasis from hepatocellularcarcinoma through excisional biopsy and immunohistochemical (IHC) staining. Dual-tracer positron emissiontomography/computed tomography (PET/CT) with 11C-acetate and 18F-FDG, however, showed metabolic findings in favorof metastasis from lung origin, which was finally confirmed by ensuing a lung biopsy with additional IHC stains. This caseillustrates the complementary molecular role of PET to pathology, particularly when dual-tracer or multi-tracer PET is usedin conjunction with pathology methods for cross referencing and confirmation.
Ivan N. Shatsky,Sergey E. Dmitriev,Ilya M. Terenin,D.E. Andreev 한국분자세포생물학회 2010 Molecules and cells Vol.30 No.4
During the last decade the concept of cellular IRESelements has become predominant to explain the continued expression of specific proteins in eukaryotic cells under conditions when the cap-dependent translation initiation is inhibited. However, many cellular IRESs regarded as cornerstones of the concept, have been compromised by several recent works using a number of modern techniques. This review analyzes the sources of artifacts associated with identification of IRESs and describes a set of control experiments, which should be performed before concluding that a 5′ UTR of eukaryotic mRNA does contain an IRES. Hallmarks of true IRES-elements as exemplified by well-documented IRESs of viral origin are presented. Analysis of existing reports allows us to conclude that there is a constant confusion of the cap-independent with the IRES-directed translation initiation. In fact, these two modes of translation initiation are not synonymous. We discuss here not numerous reports pointing to the existence of a cap- and IRES-independent scanning mechanism of translation initiation based on utilization of special RNA structures called cap-independent translational enhancers (CITE). We describe this mechanism and suggest it as an alternative to the concept of cellular IRESs.