scholarly journals Data Visualization in Engineering Pedagogy through Determination of Colour Variance in Contaminated Grass Samples

2018 ◽  
Vol 8 (5) ◽  
pp. 4
Author(s):  
Conor White ◽  
James Uhomoibhi

Big Data and Data Analytics have in recent times become important areas of focus in academia, in business and in society. This paper utilises experiments involving data visualisation of oil pollution studies and their effects on environment for enhanced learning in engineering education. Tracking and analysis of images and the use of accessible applications for the analysis of acquired data revealed the level of impact of the different types of oil pollution on grass vegetation. In accounting for these changes the primary RGB colours and corresponding values are used. The use of spectral analysis applications available in spectroscopy and comparison of results would in future prove useful in assessing some aspects of these changes in relation to wavelength and colours changes. The results of these studies would contribute in no small measure to the determination of best cleaning strategies for oil spills.

1989 ◽  
Vol 1989 (1) ◽  
pp. 473-478
Author(s):  
J. A. Nichols ◽  
H. D. Parker

ABSTRACT Oil spills in coastal waters sometimes give rise to concerns that oil may become entrained in the seawater intakes of power stations, desalination units, and other industrial plants. This paper reviews the findings of an investigation, undertaken by the International Tanker Owners Pollution Federation and Sir M. MacDonald & Partners, on the effects of oil pollution on water-cooled electricity-generating stations and desalination plants using multistage flash distillation and reverse osmosis. The various components that could be contaminated by oil are described and, using case studies wherever possible, the effects on equipment, heat transfer surfaces, and potable water are discussed. Finally considered are various methods of minimizing the impact of oil and financial implications of oil contamination for the different types of industrial plant.


1987 ◽  
Vol 1987 (1) ◽  
pp. 43-47
Author(s):  
Pu Bao-Kang

ABSTRACT The most important objectives of the International Maritime Organization (IMO) have been improving maritime safety and preventing marine pollution. The Marine Environment Protection Committee (MEPC), which is responsible for coordinating IMO's activities in preventing and controlling marine pollution from ships, agreed that spills of 100 tons of oil or more should be regarded as “significant.”1 Analyses of significant oil spills (more than 100 metric tons) from ships have helped develop spill statistics, categories of spill incidents, geographical data on spills, and so on. Analyses for the past 10 years show that about 75 percent of the incidents were caused by grounding, collision, and breakdown; about 8 percent were caused by operational errors while loading, discharging, or washing tanks; and about 17 percent were due to rough weather, fire, and other causes. These analyses suggest that measures can be taken to prevent oil pollution from ships chiefly by improving safety standards for ship construction, equipment, and operation. This paper analyzes several incidents to understand the causes, actions taken, and results of oil spills in different circumstances and with different types of oil. It also examines IMO's achievements in combating oil pollution and the difficulties that have been met in implementing Annex I of the Regulations for the Prevention of Pollution by Oil, the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 (MARPOL 73/78).


2013 ◽  
Vol 726-731 ◽  
pp. 495-498
Author(s):  
Li Na Zheng ◽  
Ge Tian ◽  
Hai Feng Wei ◽  
Heng Ming Liu

Iodometric determination of dissolved oxygen is used as experimental methods, through the determination of oxygen consumption of crude oil, gasoline , diesel , three different types of oil, oxygen consumption of Philippines clams and oxygen consumption of Philippines clams under the conditions of three oil pollution, variations of DO under the conditions of three oil pollution is researched. The results show that oxygen consumption of gasoline> oxygen consumption of diesel oil> oxygen consumption of crude oil. At the same time, oxygen consumption of gasoline changes with time by a big margin, diesel oil comes second, oxygen consumption of crude oil changed slightly with time.


2020 ◽  
Vol 70 (12) ◽  
pp. 4594-4600

The purpose of this study was to characterize some types of biomass wastes resulted from different activities such as: agriculture, forestry and food industry using thermogravimetric and ICP-MS analyses. Also, it was optimized an ICP-MS method for the determination of As, Cd and Pb from biomass ash samples. The ICP-MS analysis revealed that the highest concentration of metals (As, Cd, Pb) was recorded in the wood waste ash sample, also the thermogravimetric analysis indicated that the highest amount of ash was obtained for the same sample (26.82%). The biomass wastes mentioned in this study are alternative recyclable materials, reusable as pellets and briquettes. Keywords: ash, biomass, ICP-MS, minor elements, TG


2018 ◽  
Vol 69 (5) ◽  
pp. 1139-1144
Author(s):  
Iosif Lingvay ◽  
Adriana Mariana Bors ◽  
Livia Carmen Ungureanu ◽  
Valerica Stanoi ◽  
Traian Rus

For the purpose of using three different types of painting materials for the inner protection of the transformer vats, their behavior was studied under actual conditions of operation in the transformer (thermal stress in electro-insulating fluid based on the natural ester in contact with copper for electro-technical use and electro-insulating paper). By comparing determination of the content in furans products (HPLC technique) and gases formed (by gas-chromatography) in the electro-insulating fluid (natural ester with high oleic content) thermally aged at 130 �C to 1000 hours in closed glass vessels, it have been found that the presence the investigated painting materials lead to a change in the mechanism and kinetics of the thermo-oxidation processes. These changes are supported by oxygen dissolved in oil, what leads to decrease both to gases formation CO2, CO, H2, CH4, C2H4 and C2H6) and furans products (5-HMF, 2-FOL, 2 -FAL and 2-ACF). The painting materials investigated during the heat treatment applied did not suffer any remarkable structural changes affecting their functionality in the electro-insulating fluid based on vegetable esters.


Medicina ◽  
2021 ◽  
Vol 57 (7) ◽  
pp. 679
Author(s):  
Monica Iuliana Ungureanu ◽  
Liliana Sachelarie ◽  
Radu Ciorap ◽  
Bogdan Aurelian Stana ◽  
Irina Croitoru ◽  
...  

Background and Objectives: Different types of food introduced gradually in the diet will expose children to different food allergens, increasing the chance of developing allergic diseases. The aim of our study was to determine if allergen-specific IgE values can influence, depending on the diet, the prediction of remission of urticaria in children. Materials and Methods: This prospective study was conducted in 132 patients diagnosed over two years with urticaria, admitted to “Sf. Maria” Clinical Pediatric Hospital Iaşi. Total IgE assay was performed by ELISA, and determination of specific serum IgE by the CLA System Quanti Scan method (Innogenetics, Heiden, Germany). Data were gathered and statistical analysis was performed using statistical software SPSS, using descriptive and inferential statistics. Results: The determination of specific IgE to food allergens was performed on a total of 132 cases. The values of specific IgE were positive for one or more food allergens in 84 patients (63.64%). The most common allergens involved were: cow’s milk in 33.3% cases, egg white in 22.6% cases, and hazelnuts in 11.9% cases. The specific IgE values for the different types of food included in our study had a predictive value for disease remission. Conclusions: The determination of specific IgE confirms the presence of a particular food allergen and may have predictive value for the future development of an allergic manifestation.


2021 ◽  
Vol 13 (12) ◽  
pp. 6660
Author(s):  
Marco Ferrante ◽  
Anuma Dangol ◽  
Shoshana Didi-Cohen ◽  
Gidon Winters ◽  
Vered Tzin ◽  
...  

Vachellia (formerly Acacia) trees are native to arid environments in Africa and the Arabian Peninsula, where they often support the local animal and plant communities acting as keystone species. The aim of this study was to examine whether oil pollution affected the central metabolism of the native keystone trees Vachellia tortilis (Forssk.) and V. raddiana (Savi), as either adults or seedlings. The study was conducted in the Evrona Nature Reserve, a desert ecosystem in southern Israel where two major oil spills occurred in 1975 and in 2014. Leaf samples were collected to analyze the central metabolite profiles from oil-polluted and unpolluted adult trees and from Vachellia seedlings growing in oil-polluted and unpolluted soils in an outdoor setup. We found that oil pollution had a stronger effect on one-year-old seedlings than on adult trees, reducing the levels of amino acids, sugars, and organic acids. While adult trees are mildly affected by oil pollution, the effects on young seedlings can cause a long-term reduction in the population of these keystone desert trees, ultimately threatening this entire ecosystem.


2021 ◽  
Vol 33 (2) ◽  
pp. 435-441
Author(s):  
Pham Van Tan

Oil pollution damage caused by oil spills at sea generally occurs on a large scale across numerous regions and countries, causing significant harm to marine ecosystems as well as worldwide economic loss. The costs are so severe in many instances that the owner of the ship responsible for the pollution cannot afford to pay compensation to those who have suffered loss. As a consequence, the need to cover oil pollution damages has given rise to compulsory liability insurance, which provides a financial guarantee against the costs of oil spills. Compulsory civil liability insurance has therefore become an indispensable part of the liability regime for owners of oil tankers and bunkers.


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