Internal Structure Research Papers - Academia.edu (original) (raw)

Modern coastal areas have natural and transported rocks (armourstone) on which various types of organisms live. Burrowing, boring and feeding by these organisms can destroy or modify the coastal rocks and hence change the coastal... more

Modern coastal areas have natural and transported rocks (armourstone) on which various types of organisms live. Burrowing, boring and feeding by these organisms can destroy or modify the coastal rocks and hence change the coastal morphology. Two rock types and three dominant types of organisms have been studied in Mersin Bay, Eastern Mediterranean of southern Turkey. In this study area, Plio-Quaternary conglomerates and variously aged limestone armourplates have been affected by Phoronida worms, bivalve Brachidontes pharaonis (Fischer P. 1870) and the limpet Patella sp. Phoronida colonies were found covering the hard substratum as a mat and form tubular endolithes of 35.0 mm depth and 1.5 mm diameter, whilst Brachidontes pharaonis (Fischer P. 1870) form 44 mm deep vase-shaped gastrochaenolites. The bioerosive activity of Limpet Patella sp., found intertidal and within the spray zone, cannot be significantly observed on the rocks over short time periods. The soft sandy matrix of the conglomerates present were found to disintegrate by bioerosional processes, with the released gravels being transported and deposited onto the beach. Within the armourstone limestone blocks, a maximum of 44.0 mm deep holes developed after 50–60 years. However, these biological activities do not threaten the stability of the blocks due to their hard and homogeneous internal structure. Furthermore, the organism colonies that cover these rocks as a strong mat (maximum 29.0 mm) act to protect their surfaces from further biological attack and wave action.

We apply Quinn and Rohrbaugh's (1983) competing values framework (CVF) as an organizing taxonomy to meta-analytically test hypotheses about the relationship between 3 culture types and 3 major indices of... more

We apply Quinn and Rohrbaugh's (1983) competing values framework (CVF) as an organizing taxonomy to meta-analytically test hypotheses about the relationship between 3 culture types and 3 major indices of organizational effectiveness (employee attitudes, operational performance [i.e., innovation and product and service quality], and financial performance). The paper also tests theoretical suppositions undergirding the CVF by investigating the framework's nomological validity and proposed internal structure (i.e., interrelationships among culture types). Results based on data from 84 empirical studies with 94 independent samples indicate that clan, adhocracy, and market cultures are differentially and positively associated with the effectiveness criteria, though not always as hypothesized. The findings provide mixed support for the CVF's nomological validity and fail to support aspects of the CVF's proposed internal structure. We propose an alternative theoretical approach to the CVF and delineate directions for future research.

The paper gives the description of up-to-date metho d for concrete testing based on the drypoint contact ultrasonic transducers technology, ad vanced methods of computer tomography and new techniques of signal processing using SAFT... more

The paper gives the description of up-to-date metho d for concrete testing based on the drypoint contact ultrasonic transducers technology, ad vanced methods of computer tomography and new techniques of signal processing using SAFT algorithm. The authors explain the operating principles of Low -frequency ultrasonic Tomograph for concrete A1040M MIRA, the main working element of which is 40 DPC shear wave transducers antenna array. The A1040M MIRA tomographer is applicable for concrete testing using the ultrasonic frequency range of 20-150 kHz. The main operation principle of the equipment is pulse-echo tomography based on the coherent accumulation of reflected signals, received by different elements of antenna array, with their fur ther processing. The implemented SAFT algorithm allows building the 3D data massive of st ructure’s reflected parameters in tested area and then reviewing it in different sections and ima ges. The practical trials on different objects confirmed the applic...

... As determined by EDS, the predominant elements in the fly ash samples were silicon, aluminum,iron, calcium and oxygen in various compounds. ... [16] suggested that the iron in the alumino-silicate glassy phase in fly ash is the source... more

... As determined by EDS, the predominant elements in the fly ash samples were silicon, aluminum,iron, calcium and oxygen in various compounds. ... [16] suggested that the iron in the alumino-silicate glassy phase in fly ash is the source of bioavailable iron in urban areas. ...

Based on an in-depth case study of Pilkington Plc, this study illustrates that received perspectives in organization theory and theory of the firm fall short of explaining organizational evolution. The framework of organizational... more

Based on an in-depth case study of Pilkington Plc, this study illustrates that received perspectives in organization theory and theory of the firm fall short of explaining organizational evolution. The framework of organizational evolution developed in this paper is combinatorial in two ways. First, it shows how factors drawn from different perspectives can be combined in understanding organizational evolution. Second,

This paper outlines the first part of a series of research studies to investigate the potential and approaches for using optical remote sensing to assess vegetation water content. It first analyzes why most methods used as approximations... more

This paper outlines the first part of a series of research studies to investigate the potential and approaches for using optical remote sensing to assess vegetation water content. It first analyzes why most methods used as approximations of vegetation water content (such as vegetation stress indices, estimation of degree of curing and chlorophyll content) are not suitable for retrieving water