نتایج جستجو برای: morphological property

تعداد نتایج: 284333  

In this work, zinc ferrite magnetic and zinc ferrite-graphene oxide nanocomposite were synthesized through a facile hydrothermal method and dye removal capability as an adsorbent were studied. Fourier transform infrared spectroscopy FT-IR, X-ray diffraction XRD and scanning electron microscopy SEM were used to characterize the synthesized nanocomposite. The UV-Vis results showed that the additi...

1998
Henk J.A.M. Heijmans John Goutsias

This paper discusses the construction of perfect reconstruction filter banks using morphological operators. Two concrete examples are given: (i) the morphological Haar wavelet, and (ii) a wavelet decomposition obtained from the lifting scheme which has the nice property that local maxima are being preserved.

1998
R. S. ELLIS

I review recent observational progress concerning the evolution of the morphological distribution of galaxies in the rich cluster environment and in the faint field population. By coupling HST imagery with ground-based spectroscopic diagnostics, evidence accumulates that galaxy morphology can be a transient phenomenon reflecting various changes in the star formation rate. Possible physical proc...

2009
KYLE BEATTY JERRY M. STRAKA

This paper reviews the history of nomenclature used to describe the supercell spectrum. Studies are reviewed that attempt to explain the physical processes associated with variations in supercell morphology. The observational evidence for disparate risks associated with variations in morphology is examined. ––––––––––––––––––––––––

2015
Carl T. Friedrichs

In the context of STRATAFORM and EuroSTRATAFORM, the long-term goal of this project is to contribute toward simultaneously understanding (i) short term oceanic processes that erode, transport and deposit sediment in the margin system and (ii) the creation of the preserved stratigraphic architecture, seafloor morphology and sediment facies on continental margins. In order for models at such disp...

1997
Yasuhiro Hashimoto Huan Lin Douglas L. Tucker

We have used a sample of 15749 galaxies taken from the Las Campanas Redshift Survey (Shectman et al. 1996) to investigate the effects of environment on the rate of star formation in galaxies. For each galaxy we derive a measure of star formation rate (SFR) based on the strength of the [OII] emission line, and a measure of galactic structure based on the central concentration of the galaxy light...

1996
R. Buonanno M. Bellazzini F. Fusi Pecci

The Horizontal Branch (HB) morphology in the color – magnitude diagram of the Galactic globular clusters depends on many factors, and it is now firmly established that the so-called " Second Parameter " is not just the cluster age as claimed for several years. As a part of a wider program devoted to the search for the physical processes driving the Horizontal Branch Morphology, we re-address he...

2002
DAWN Y. SUMNER

The early evolution and diversification of life can be constrained by analysing the morphology of well preserved microbial communities. However, stromatolite morphology is a complex function of biological, chemical, and physical processes. Thus, to constrain microbial behaviour, the influences of various processes need to be carefully extracted. In some Neoarchean microbialites, physical and ch...

2004
Kelin X. Whipple

■ Abstract Bedrock rivers set much of the relief structure of active orogens and dictate rates and patterns of denudation. Quantitative understanding of the role of climate-driven denudation in the evolution of unglaciated orogens depends first and foremost on knowledge of fluvial erosion processes and the factors that control incision rate. The results of intense research in the past decade ar...

Journal: :Integrative and comparative biology 2005
Peter C Wainwright Michael E Alfaro Daniel I Bolnick C Darrin Hulsey

We introduce the concept of many-to-one mapping of form to function and suggest that this emergent property of complex systems promotes the evolution of physiological diversity. Our work has focused on a 4-bar linkage found in labrid fish jaws that transmits muscular force and motion from the lower jaw to skeletal elements in the upper jaws. Many different 4-bar shapes produce the same amount o...

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