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

2021 ◽  
Author(s):  
Anastasiia Evgenevna Kaskaeva ◽  
Tatyana Nikolaevna Adametskaya
Keyword(s):  
Plastic Products

Toxic effects of sub lethal concentration of dioctyl phthalate on the histology of liver of Clarias batrachus (Linn.).

2016 ◽  
Vol 5 (09) ◽  
pp. 4874
Author(s):  
Manisha Satpathi* ◽  
Ravinder Singh
Keyword(s):  
Acute Toxicity ◽  
Light Microscopy ◽  
Dioctyl Phthalate ◽  
Clarias Batrachus ◽  
Fresh Water Fish ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Water Fish ◽  
Toxicity Effects ◽  
Plastic Products

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.

Application of failure mode and effects analysis to reduce microplastic emissions

2021 ◽  
pp. 0734242X2110031
Author(s):  
Ana Pires ◽  
Paula Sobral
Keyword(s):  
Failure Mode ◽  
Quantitative Methods ◽  
Policy Instruments ◽  
Effect Analysis ◽  
Advantages And Disadvantages ◽  
Heuristic Technique ◽  
Single Use ◽  
Regulatory Measures ◽  
Plastic Products

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.

scholarly journals Advanced and Versatile Lignin-Derived Biodegradable Composite Film Materials Toward a Sustainable World

2021 ◽  
Author(s):  
Hanmin Wang ◽  
Tong-Qi Yuan ◽  
Guoyong Song ◽  
Runcang Sun
Keyword(s):  
Environmental Pollution ◽  
Composite Film ◽  
Biodegradable Plastic ◽  
Biodegradable Composite ◽  
Alternative Materials ◽  
Ecological Problems ◽  
Plastic Products

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...

scholarly journals Quality by design of optimum parameter to minimize the weight of plastic products

2021 ◽  
Vol 1073 (1) ◽  
pp. 012076
Author(s):  
M Hartono ◽  
G Gumono ◽  
W Wirawan ◽  
N Qosim ◽  
H Wicaksono
Keyword(s):  
Optimum Parameter ◽  
Quality By Design ◽  
Plastic Products

scholarly journals Plastic Products Leach Chemicals That Induce In Vitro Toxicity under Realistic Use Conditions

2021 ◽  
Author(s):  
Lisa Zimmermann ◽  
Zdenka Bartosova ◽  
Katharina Braun ◽  
Jörg Oehlmann ◽  
Carolin Völker ◽  
...  
Keyword(s):  
In Vitro Toxicity ◽  
Plastic Products

Study on characteristic identification of solid wastes of recycled PVC plastic products

2021 ◽  
Author(s):  
Chuan Luo ◽  
Xiatian Wang ◽  
Yangfeng Yu ◽  
Fen Sha ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Solid Wastes ◽  
Plastic Products

Transient Heat Transfer Simulation in Rapid Heat Cycle Molding with Electric Heating

2012 ◽  
Vol 497 ◽  
pp. 121-125
Author(s):  
Shao Fei Jiang ◽  
Yin Kong ◽  
Ji Quan Li ◽  
Guo Zhong Chai
Keyword(s):  
Heat Transfer ◽  
Injection Molding ◽  
Temperature Response ◽  
Electric Heating ◽  
High Quality ◽  
Heat Cycle ◽  
Heat Transfer Simulation ◽  
Plastic Injection ◽  
Plastic Products

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.

scholarly journals Sanitary pads and diapers contain higher phthalate contents than those in common commercial plastic products

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