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Abstract

Today, the new era with Very High Resolution Satellite (VHRS) imageries as IKON OS, QuickBird, EROS, Orb View etc., provides orthophoto in large scale of 1 :5 OOO, to update existing maps, to compile general-purpose or thematic maps. Orthophotomap in the scale of I :5 OOO with Ground Sampling Distance of 0.5 m is one of three important sources for establishing GIS together with a Digital Elevation Model of ±LO m accuracy in height and a topographic map in the scale of 1: IO OOO. Therefore, the accuracy of products of VHRS imageries affects reliability of GIS. Nevertheless, the accuracy of products of processing VHRS imageries is at first dependent on chosen geometrical sensor models. The understanding of geometrical sensor models of VHRS imageries is very important for improving processing of VHRS imageries. The polynomial models are to provide a simple, generic set of equations to represent the indirect relationship between the ground and its image. The polynomial models or replacement sensor models must not only model the ground-to-image relationship accurately. Physical (or parametrical) model describes dir~ctly strict geometrical relations between the terrain and its image, using satellite's orbital parameters and basing on the co-linearity condition. In such model, the above-mentioned multi-source distorting factors are taken into consideration. In this paper a review of practical accuracy of geometrical models of VHRS imageries taken from different research institutions in the world in last years has been presented.
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Authors and Affiliations

Chinh Ke Luong
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Abstract

Iron production’s waste materials include significant quantities of blast furnace slag (BFS) which could potentially be used as a substitute for natural aggregates in hot mix asphalt (HMA) used in highway projects. Although many of properties of slag are interesting, its porosity and absorption rate would lead to greater consumption of asphalt. For this study, a Portland cement (PC) paste was used to reduce the porosity of a BFS. This PC treated BFS (called BFS-C) was then used in an HMA to replace the coarse fraction of a natural aggregate. Marshall, Indirect Tensile Strength (ITS), resilient modulus and Cantabro tests were then carried out on different HMA mixtures that included BFS-C. Using BFS-C, HMA’s resistance under monotonic loading, stiffness under cyclic loading, and resistance to moisture damage increased remarkably. In addition, the Cantabro abrasion resistance of BFS-C improved was better than that of the HMA mixture produced with untreated BFS.

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Authors and Affiliations

H.A. Rondón-Quintana
J.C. Ruge-Cardenas
J.G. Bastidas-Martínez
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Abstract

This article examines the relationship of Maryla Wolska with the poets and artists of the Young Poland in Lwów and, more broadly, with the literary community of the early 20th century. She was a leading light of Płanetnicy (The Rainmakers), an informal group of artists who met at her house in Lwów. The role of a friend and mate, someone who was treated equally as a writer, did not sit well, however, with her role as mistress of the house, hostess of a literary salon and representative of a family which occupied a high position in the social hierarchy. To ride on the crest of the wave she strove to combine two strategies, a modern jauntiness and a studious attention to 19th-century proprieties. Although she did well for herself, her success was by no means complete.

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Authors and Affiliations

Anna Czabanowska-Wróbel
ORCID: ORCID

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