نتایج جستجو برای: razor shells

تعداد نتایج: 19844  

ژورنال: سلامت و محیط زیست 2008
فرهمند کیا, زهره, مهراسبی, محمد رضا,

Background and Objectives: Heavy Metals in Water resources is one of the most important environmental problems of countries. Up to now various methods of removing of these metals is considered, which is including using of low prices materials. In this study the potential of banana shells was assessed for adsorption of heavy metal ions such as Pb and Cd from aqueous solution. Materials and Metho...

2016
Nathan J Robinson Roksana Majewska Eric A Lazo-Wasem Ronel Nel Frank V Paladino Lourdes Rojas John D Zardus Theodora Pinou

The macro-epibiotic communities of sea turtles have been subject to growing interest in recent years, yet their micro-epibiotic counterparts are almost entirely unknown. Here, we provide the first evidence that diatoms are epibionts for all seven extant species of sea turtle. Using Scanning Electron Microscopy, we inspected superficial carapace or skin samples from a single representative of ea...

Journal: :The Journal of experimental biology 2006
Jan M Hemmi Justin Marshall Waltraud Pix Misha Vorobyev Jochen Zeil

Colour changes in fiddler crabs have long been noted, but a functional interpretation is still lacking. Here we report that neighbouring populations of Uca vomeris in Australia exhibit different degrees of carapace colours, which range from dull mottled to brilliant blue and white. We determined the spectral characteristics of the mud substratum and of the carapace colours of U. vomeris and fou...

2008
Marek Kasztelnik Tomasz Guba Maciej Malawski Marian Bubak

Creating applications that use distributed Grid resources is a complex and time-consuming process. To help developers and end users to create, test and execute this kind of applications, the integrated environment is needed. This paper shows how to develop and execute collaborative applications on the ViroLab virtual laboratory. Furthermore, the collaboration tools which allow to communicate be...

2008
M. Balcells C. del Burgo E. A. Valentijn

Context. Shells in Elliptical Galaxies are faint, sharp-edged features, believed to provide evidence for a merger event. Accurate photometry at high spatial resolution is needed to learn on presence of inner shells, population properties of shells, and dust in shell galaxies. Aims. Learn more about the origin of shells and dust in early type galaxies. Methods. V-I colours of shells and underlyi...

In this study, discrepancies between the free vibration of fiber-metal laminate (FML) and composite cylindrical shells reinforced by carbon nanotubes (CNTs) based on Love’s first approximation shell theory have been considered by beam modal function model. The representative volume elements consist of three and four phases for composite and FML structures, respectively, which include fiber, CNT...

Journal: :Visual Journal of Emergency Medicine 2021

1999
Elizabeth G. Day George M. Branch Cecilia Viljoen

The energetic cost of replacing shell loss due to erosion has been overlooked in previous research on molluscan energy budgets, although several studies have shown that shell breakage incurs a significant short-term cost and may reduce growth. We measured the rate of shell erosion for two species of patellid limpets: Patella granatina, which has a shell predominated by calcite, and P. argenvill...

2008
M. Relaño J. E. Beckman

Aims. Large HI shells, with diameters of hundreds of pc and expansion velocities of 10-20 km s−1 have been detected in their hundreds in the Milky Way and are well observed features of local gas rich galaxies. These shells could well be predicted as a result of the impact of OB associations on the ISM, but doubt has been cast on this scenario by the apparent absence of OB stars close to the cen...

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