scholarly journals Symbolic and Stylistic Features of the Image Scheme of the Theromorph in Metal-Plastic Products of the Perm Animal Style

Author(s):  
Anastasiia Evgenevna Kaskaeva ◽  
Tatyana Nikolaevna Adametskaya
Keyword(s):  
2016 ◽  
Vol 5 (09) ◽  
pp. 4874
Author(s):  
Manisha Satpathi* ◽  
Ravinder Singh

Dioctyl phthalate (DOP) commonly used as plasticizer enters into aquatic environment from the industries manufacturing plastic products, PVC resins, cosmetics and many other commercial products. Therefore, this study was designed to evaluate the acute toxicity effects of Dioctyl phthalate on fresh water fish Clarias batrachus. The 96 hour LC50 of Dioctyl phthalate in Clarias batrachus was estimated as 14.5ml/L. Histopathological changes in liver of Clarias batrachus were determined by exposing them to a fraction of LC50(1/5th) dose with every change of water for 30 days.The liver of Clarias batrachus was excised at every interval of 30 days and histological changes of liver were studied under light microscopy. Liver tissues showed abnormalities. Centrilobular vacuolation, necrosis, eccentric nuclei and enlarged nuclei, Centrilobular degeneration of hepatocytes were observed in liver tissue of fish.


2021 ◽  
pp. 0734242X2110031
Author(s):  
Ana Pires ◽  
Paula Sobral

A complete understanding of the occurrence of microplastics and the methods to eliminate their sources is an urgent necessity to minimize the pollution caused by microplastics. The use of plastics in any form releases microplastics to the environment. Existing policy instruments are insufficient to address microplastics pollution and regulatory measures have focussed only on the microbeads and single-use plastics. Fees on the use of plastic products may possibly reduce their usage, but effective management of plastic products at their end-of-life is lacking. Therefore, in this study, the microplastic–failure mode and effect analysis (MP–FMEA) methodology, which is a semi-qualitative approach capable of identifying the causes and proposing solutions for the issue of microplastics pollution, has been proposed. The innovative feature of MP–FMEA is that it has a pre-defined failure mode, that is, the release of microplastics to air, water and soil (depending on the process) or the occurrence of microplastics in the final product. Moreover, a theoretical recycling plant case study was used to demonstrate the advantages and disadvantages of this method. The results revealed that MP–FMEA is an easy and heuristic technique to understand the failure-effect-causes and solutions for reduction of microplastics and can be applied by researchers working in different domains apart from those relating to microplastics. Future studies can include the evaluation of the use of MP–FMEA methodology along with quantitative methods for effective reduction in the release of microplastics.


2021 ◽  
Author(s):  
Hanmin Wang ◽  
Tong-Qi Yuan ◽  
Guoyong Song ◽  
Runcang Sun

The excessive use of petroleum-based non-biodegradable plastic products has resulted in severe environmental pollution and ecological problems, which has stimulated the development of biodegradable and renewable alternative materials. Lignin, as...


2021 ◽  
Vol 1073 (1) ◽  
pp. 012076
Author(s):  
M Hartono ◽  
G Gumono ◽  
W Wirawan ◽  
N Qosim ◽  
H Wicaksono

Author(s):  
Lisa Zimmermann ◽  
Zdenka Bartosova ◽  
Katharina Braun ◽  
Jörg Oehlmann ◽  
Carolin Völker ◽  
...  

2021 ◽  
Author(s):  
Chuan Luo ◽  
Xiatian Wang ◽  
Yangfeng Yu ◽  
Fen Sha ◽  
Chao Zhang ◽  
...  

2012 ◽  
Vol 497 ◽  
pp. 121-125
Author(s):  
Shao Fei Jiang ◽  
Yin Kong ◽  
Ji Quan Li ◽  
Guo Zhong Chai

The demand of high quality for plastic products has facilitated the development of Plastic Injection Molding Technology, many new sorts of methods were created to improve the surface quality of plastic products, such as Rapid Heat Cycle Molding. But the temperature response law hasn’t figured out yet, and the influence elements of this process haven’t been clear, which seriously delay the appliction of Rapid Heat Cycle Molding.


2019 ◽  
Vol 84 ◽  
pp. 114-121 ◽  
Author(s):  
Chan Jin Park ◽  
Radwa Barakat ◽  
Alexander Ulanov ◽  
Zhong Li ◽  
Po-Ching Lin ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document