نتایج جستجو برای: plastic

تعداد نتایج: 54845  

M. Movahedi Rad,

For application of the plastic analysis and design methods the control of the plastic behaviour of the structures is an important requirement. In this study, the complementary strain energy of the residual forces is considered as an overall measure of the plastic performance of the structure. Shakedown theorem for the analysis of the plastic behaviour of the laterally loaded piles is developed ...

Journal: :international journal of iron & steel society of iran 2012
h. moosalu a. noori teymorlu n. parvini ahmadi s. yazdani

this study was conducted in order to investigate the influence of plastic deformation on the transformation of retained austenite in a trip steel with a high content of al and a low content of si. to the aim, appropriate treatments were used to produce the starting material (trip steel). the microstructure of the obtained steel was composed of bainite and phases including ferrite and retained a...

Journal: :Science 2018
Joleah B Lamb Bette L Willis Evan A Fiorenza Courtney S Couch Robert Howard Douglas N Rader James D True Lisa A Kelly Awaludinnoer Ahmad Jamaluddin Jompa C Drew Harvell

Plastic waste can promote microbial colonization by pathogens implicated in outbreaks of disease in the ocean. We assessed the influence of plastic waste on disease risk in 124,000 reef-building corals from 159 reefs in the Asia-Pacific region. The likelihood of disease increases from 4% to 89% when corals are in contact with plastic. Structurally complex corals are eight times more likely to b...

Journal: :Marine pollution bulletin 2012
Valerie A Lindborg Julia F Ledbetter Jean M Walat Cinamon Moffett

We analyzed dietary habits and presence of plastic in 589 boluses of Glaucous-winged Gulls (Larus glaucescens) as one of two studies on the impact of plastics on marine life in the US Salish Sea. Volunteers dissected boluses collected (2007-2010) from Protection Island, Washington. Components were separated into 23 food and non-food categories. Plastic was found in 12.2% of boluses, with plasti...

2014
Salvatore Taglialatela Scafati Luigi Maria Lapalorcia

Dear Editor: Social networking has become an integral part of everyday life with an increasing number of hours spent per day interacting online with both familiar and unfamiliar people. Geographic boundaries have changed and communication costs have decreased drastically. Today, we can interact with others with a simple click, and smartphone technology has made these interactions not only globa...

Journal: :Marine pollution bulletin 2001
C J Moore S L Moore M K Leecaster S B Weisberg

The potential for ingestion of plastic particles by open ocean filter feeders was assessed by measuring the relative abundance and mass of neustonic plastic and zooplankton in surface waters under the central atmospheric high-pressure cells of the North Pacific Ocean. Neuston samples were collected at 11 random sites, using a manta trawl lined with 333 u mesh. The abundance and mass of neustoni...

Journal: :Nanotechnology & Applications 2018

2016
S. H. Chen T. M. Yue C. P. Tsui K. C. Chan

Inheriting amorphous atomic structures without crystalline lattices, bulk metallic glasses (BMGs) are known to have superior mechanical properties, such as high strength approaching the ideal value, but are susceptible to catastrophic failures. Understanding the plastic-flow dynamics of BMGs is important for achieving stable plastic flow in order to avoid catastrophic failures, especially under...

2005
Robert H. Day David G. Shaw

The distribution, abundance, and characteristics of neuston plastic in the North Pacific, Bering Sea, and Japan Sea were studied during the 4-year period 1985-88 at 203 neuston stations encompassing ca. 91,000 m2 of sampling. The highest total density of neuston plastic was 316,800 pieces/km2 at lat. 35"59'N, long. 152"OO'E in Transitional Water east of Japan. The highest total concentration of...

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