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Open access

Lucian Ioan Tarnu

References 1. Massey, Doug S. et al. “Theories of International Migration: A Review and Appraisal”, Population and Development Review, vol. 19, no. 3, (1993): 431-466. 2. Data are provided by the National Institute of Statistics. 3. Ibidem. Aelenei Victor, The Law of State Border, volume I, Bucharest: Pro Universitaria Publishing House, 2006. Albu Alexandru D., International Migration of Work Force, Bucharest: Science and Encyclopedic Publishing House, 1976

Open access

Tomasz Bąk

References [1] After: K. Białek, Migracje na świecie (Migration in the World), [23.03.2016] [2] , [23.03.2016] [3] Ibid. [4] , [23.03.2016] [5] , [23.03.2016] [6] Cf. , [23.03.2016] [7] A. Staszczyk, Skutki migracji dla bezpieczeństwa wewnętrznego (Migration Consequences for Internal Security

Open access

R. Major, K. Maksymow, J. Marczak, J.M. Lackner, M. Kot and B. Major


Seeding of cells on functional, biocompatible scaffolds is a crucial step in achievement the desired engineered tissue. In the present study, a pulsed laser modification onto inorganic substrate was made to promote endothelium cells migration and spread. Presented scaffolds were fabricated on carbon and titanium based coatings. Fabricated films provided very good mechanical properties together with a chemical stability preservation. The substrate modification consisted of grid-like template fabrication of micrometer size meshes. The microstructure analysis of laser traces revealed the grain size increase in the zone of laser beam interaction, which exerts an influence on a surface topography. Endothelium cells locomotion was observed within 10 day time period. As a result it was shown that the modified area enhanced cells adhesion with a preferred static behavior. The performed research work improved our understanding on the pulsed laser ablation process and template size influence on cells spatial arrangement. It constituted an important step towards fabrication of inorganic, biocompatible scaffolds for successful substrate endothelialization.

Open access

J. Liu, X.M. Suo, S.S. Zhou, S.Q. Meng, S.S. Chen and H.P. Mu


The tracking of the migration of ice frontal surface is crucial for the understanding of the underlying physical mechanisms in freezing soil. Owing to the distinct advantages, including non-invasive sensing, high safety, low cost and high data acquisition speed, the electrical capacitance tomography (ECT) is considered to be a promising visualization measurement method. In this paper, the ECT method is used to visualize the migration of ice frontal surface in freezing soil. With the main motivation of the improvement of imaging quality, a loss function with multiple regularizers that incorporate the prior formation related to the imaging objects is proposed to cast the ECT image reconstruction task into an optimization problem. An iteration scheme that integrates the superiority of the split Bregman iteration (SBI) method is developed for searching for the optimal solution of the proposed loss function. An unclosed electrodes sensor is designed for satisfying the requirements of practical measurements. An experimental system of one dimensional freezing in frozen soil is constructed, and the ice frontal surface migration in the freezing process of the wet soil sample containing five percent of moisture is measured. The visualization measurement results validate the feasibility and effectiveness of the ECT visualization method

Open access

Marta Toda and Katarzyna Ewa Grabowska

Analysis. Textile Research Journal 2010; 80; 623-630. Pandita S.D., Verpoest I.:Prediction of the tensile stiffness of weft knitted fabric composites based on X-ray tomography images. Composites Science and Technology 63 (2003) 311–325. Badel P. , E. Vidal-Sallé E., Maire E., Boisse P.: Simulation And Tomography Analysis of Textile Composite Reinforcement Deformation at the Mesoscopic Scale. Int J Mater Form (2009) Vol. 2 Suppl 1:189–192. El-Behery H.M.: Study of Theories of Fiber Migration— Need for More Fundamental Approach and Further Studies. Textile

Open access

Eva Vitkovská and Peter Ballo

. Mater. 426 (2012), 182–188. [4] MISHIN, Y.—ASTA, M.—LI, J. : Atomistic Modelling of Interfaces and their Impact on Microstructure and Properties, Acta Mater. 58 No. 148 (2010), 1117–1151. [5] RACE, C. P.—HADIAN, R.—von PEZOLD, J.—GRABOWSKI, B.—NEUGEBAUER, J. : Mechanisms and Kinetics of the Migration of Grain Boundaries Containing Extended Defects, Phys. Rev. B 92 (2015), 174115. [6] COMBE, N.—MOMPIOU, F.—LEGROS, M. : Disconnections Kinks and Competing Modes in Shear-Coupled Grain Boundary Migration, Phys. Rev. B 93 (2016), 024109. [7

Open access

Anca Dinicu

References [1] [2] (Tito Boeri, The Immigration Game )] [3] [4] [5] [6]

Open access

Anca Dinicu and Daniel-Sorin Constantin

:// [7] . [8] . [9] . [10] . [11] . [12] http

Open access

Marta Okoń-Fąfara, Piotr Serafin and Adam Kawalec

Transaction on Geoscience and Remote Sensing , vol. 48, no. 4 (2010), pp.2109-2118, DOI: 10.1109/TGRS.2009.2034368 [7] G. Xue, J. Yang and P. Liu, “Modified range migration algorithm integrated with motion compensation for FMCW SAR”, IET International Radar Conference 2013 , 14-16 April 2013, DOI: 10.1049/cp.2013.0191 [8] I. Cumming and F. H. Wong, “Digital processing of synthetic aperture radar data: algorithms and implementation”, pp. 323-361, Artech House Publishers, London, 2005. [9] R. Bamler, “A comparison of range-doppler and wavenumber domain SAR

Open access

Jurij Tasinkevych and Ihor Trots

References [1] AGRANOVSKY M.L., QUINTO E.T. (1996), Injectivity sets for the Radon transform over circles and complete systems of radial functions , J. Funct. Anal., 139, 383-413. [2] CAFFORIO C., PRATI C., ROCCA F. (1991), SAR data focusing using seismic migration techniques , IEEE Trans. Aerosp. Electron. Syst., 27, 194-207. [3] COOLEY C., ROBINSON B. (1994), Synthetic focus imaging using partial data-sets , Proc. 1994 IEEE Ultrason. Symp., 3, 1539-1542. [4] CORL P.D., GRANT P.M., KINO G. (1978), A Digi-tal Synthetic Focus Acoustic Imaging