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Publisher: Sami Publishing Company (Total: 3 journals) [Sort by number of followers]

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	Advanced J. of Chemistry, Section A (Followers: 3)
	Advanced J. of Chemistry, Section B (Followers: 1)
	J. of Chemical Reviews

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Advanced Journal of Chemistry, Section B
Number of Followers: 1

This is an Open Access Journal

Open Access journal
ISSN (Online) 2716-9634
Published by Sami Publishing Company

[3 journals]

Effects of Environmental Pollution in Industry (Case Study: Soil
Pollution)
- Abstract: Soil pollution has increasing risks for human health and environment. Heavy elements are considered among the most important pollutants in the environment, which have been highly concerned in the last few decades. The accumulation of heavy elements in the soil, especially in agricultural fields, is gradual and the concentration of heavy elements can reach a level that threatens human food security. Every year, thousands of tons of these elements, which are caused by urban, industrial, and agricultural activities, enter the soil. The study of different researchers inside the country shows that the intensification of industrial activities, on one hand, and the non-compliance of environmental issues and standards by some of the industrial owners, on the other hand, has caused environmental pollution in some areas of the country. Soil is one of the important components of earth's bio-travel and plays an important role in the health of humans and animals. Soil not only plays an important role in the production of food and clothing, but also has a significant effect on maintaining the environmental quality. Therefore, soil contamination by chemicals is one of the most important biological issues. In the last few decades, with the progress of industry, the amount of toxic elements in the soil has been increased. Municipal and industrial effluents, solid wastes from various urban, industrial and agricultural activities, various fertilizers, and chemical poisons are important sources of soil pollution with toxic elements.
Investigating Causes of Global Warming and Environmental Consequences
- Abstract: The 80s showed the world that the human environment has been so destroyed and the growth of the population and the ever-increasing increase in human production power have given such dimensions to this destruction that the habitability of the earth has been threatened and the lives of human beings have been endangered. The researches that took place in this decade and the huge changes that took place in the natural conditions of the earth indicated that the earth is warming. Global warming has brought drought, famine, and water scarcity. The cold and snowy winters of the past are no more. Summers have become hot and long, and also the amount of annual rainfall has decreased. This heat damages agricultural products and causes shortage of water needed for agriculture and drinking water. In addition, the increase in the earth's temperature has endangered the living conditions of many animal and plant species, and a large number of them have disappeared so far. This increase also includes the risk of melting polar ice and icebergs. If this happens, the sea level will rise. As a result, many coastal cities and low-lying deltas of the world will go under water, including the city of Miami in the United States of America and the delta of Bangladesh. 
Use Chemical Materials in Automatic Segmentation of Teeth Using X-ray
- Abstract: One of the most complicated tasks in digital image processing is image segmentation. Due to increasing attention to this technique by researchers and turning it into a vital role, it is used in many practical fields such as medical applications. Today, in modern dentistry, techniques based on the use of computers, such as planning and planning before surgery, are being developed day by day. Each of these sub-bands contains important information that can be used in image segmentation. This important information is ignored in image segmentation. The main idea is to somehow add this information to the original image. The sub-bands of wavelet coefficients are added to the first sub-band of wavelet transform coefficients, corresponding to approximation coefficients, which are closer to the original image in terms of value and appearance, using integration methods. After that, the wavelet transform image is done. In this case, the obtained image contains more information than the original image, and better and more accurate segmentation is done. In this study, the EM algorithm was used to segment the dental radiology images, and to improve this algorithm, the k-means algorithm was used for the initial estimation of the parameters of the EM algorithm. Despite its simplicity, this algorithm is considered a basic method for many other clustering methods. Morphological operators have been used to improve segmentation.