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Till date polymeric membranes play a major role in Reverse Osmosis Desalination Industries. Many researchers have been concentrated in order to develop optimum polymeric membranes. The optimization is done in previous decades by controlling the membrane formation reactions and by use of catalysts and some additives but the emergence of Nano-technology in membrane could provide a better alternative for polymer based membranes. In this research a general review on different conventional membrane process that are currently employed are discussed and how Nano-structured membranes that can be employed which will enhance the Reverse osmosis desalination performance and but number of challenges remain with regard to their practical execution.

Analysis of earth dams Stability, and their arching phenomenon, is one of the most important issues in geotechnical engineering. Arching dam, you can use one or more methods are analyzed. The main factor of instability dams, gravity effect, but other factors can, intensify or provoke them to be effective. To understand the factors intensifying landslide, could contribute significantly to the experts, and the stability of the dam dirt, and prevent the arching. The purpose of this paper is to examine the phenomenon of arching in the bathroom tight barrier with finite element method, and compared with studies of dam instrumentation, numerical analysis by finite element software PLAXIS, has been made. Analysis, using behavioral models Mohr-Coulomb, is done. On the other hand, we can say that, numerical methods in the analytical methods is very rapid, reliable and accurate, and therefore these methods, able to perform parametric studies, the boundary conditions are complex. So in this study, AH stresses dam Tang-e Hamam, has been studied, and then perform parametric studies, it was concluded that increasing the angle of internal friction shell dam, the dam will lead to increased confidence. However, by changing the geometry of the dam core, core thickness miles to miles and increase confidence rises Dam. Also, the arching, the barrier height is variable, and strongly arching and the maximum arching, core thickness depends on the height of the dam.

This study is a first neuropsychological evaluation of cognitive Impairment generated by the job strain to the teleoperators in call centers in sub-Saharan Africa; Particularly in the Democratic Republic of Congo, city of kinshasa. This study established a statistically significant relationship between Exposure to psychosocial factors (high psychological demand and low decision latitude) and the appearance of job strain in teleoperators. It also showed a statistically significant relationship between job strain and the appearance of cognitive disorders in teleoperators. Lastly, the exposure duration at the call center of six months or more, was retained as necessary time to see the psychosocial factors negatively impacting the mental health of the call center teleoperators.

The paper evaluates the effectiveness of recent initiatives introduced by the Royal Thai Government proliferate Broadband services in Thailand. With globalization, the society is constantly changing resulting by information technology and Internet access to play an important role in communication, social, political, economic or even environmental. Because of the rapid-technological advancement, it causes that many countries moving up their focus on developing infrastructure to enhance the information technology and innovation. The data transmission not only text messages but also pictures such as VDO conference is important to make use of information technology is faster and more efficient. The perception is very convenient and fast and hence requires a good core broadband infrastructure. The role of Information and Communication Technology infrastructure (ICT infrastructure) enables leaders on governments’ decision based on the real time and reliable information. Of course, the government leaders in many countries realized that the quality and performance on ICT infrastructure would directly affect developing countries. In order to monitor the countries in the crisis situation, the stable and qualified network is required which the government called as S-M-A-R-T network. Under ICT2020 Policy Framework and Broadband Policy, Ministry of ICT accelerates connected S-M-A-R-T network to develop ICT infrastructure in Thailand recently. On another hand, Thailand economy is also important mechanism for strengthening competitiveness. The new business opportunities with many other countries have defined a policy and planning in developing Broadband seriously and continuously. In this paper, the study will identify the policies and plans of development and building broadband infrastructure of the leaders in the development of broadband top of the world, including Japan, South Korea, Singapore, The United States, Australia and Sweden, a country that have a clear policy and plan development. The projects initiated and measures taken by the Government of Thailand in the broadband sector have been studied. The information has been gathered by interacting with the executive officers of the National Broadcasting and Telecommunications Commission (NBTC), Ministry of Information Communication and Technology, Thailand, from interviewing the officers of government departments: Ministry of Education (MOE), Ministry of Public Health (MOH) and etc.

In the economics of Iran according to the mixture of the incomes of the country, tax can be considered as a kind of assured income. Whereas the important part of tax revenues in Iran depends directly and non-directly on oil revenues, this important matter has severely damaged the tax incomes against fluctuated oil revenues. Being lower 20 percent share of direct incomes to general budget can be assessed as an increased share of oil from the incomes of government. The results of this research present that the extent of the oil revenues of the country has negative effect on tax revenues during research ages. The result is that for revising the structure of country tax system, this matter should be considered in execution process and how to use of expertise people power and revision in this case must be done?in order that tax system be efficient in national economy.

This paper takes a look at Campus Radio Presentation World from analytical secondary data and observers discovery over a span of many years of professional radio broadcasting practice and offered different perspectives with recommendations for excellent presentations on Campus Radio.

In this paper, a helical coil tube in tube heat exchanger was designed and used in carbon dioxide solar assisted heat pump system (SAHP) to provide hot water for domestic applications and to operate an air gap membrane desalination (AGMD) unit. Both theoretical and experimental studies to investigate the performance of the gas cooler with Glycol Ethylene 50% and water as coolants were performed. The experimental part to study the behavior of the carbon dioxide in the supercritical region was conducted on the R744 heat pump test rig located at Department of Energy and Process Engineering – NTNU. On the other hand, FEA using ANSYS Fluent 18.1 was used to conduct the theoretical analysis. The study includes effect of inlet temperature of both coolants, effect of discharge pressure, effect of mass flow rate of water, and logarithmic mean temperature difference (LMTD). Good agreements between Experimental and simulation results were achieved. Results showed that the outlet temperature of the refrigerant from the gas cooler decreased from 81 oC to 40 oC, with 0.085 bar average pressure drop due to the heat rejection process. The outlet temperature of the refrigerant from the gas cooler in case of water is 8 oC lower than with ethylene glycol 50%. The outlet temperature of water reached 57 oC which is enough for domestic applications and to operate the AGMD unit to produce fresh water. It is observed that the pressure drop in the refrigerant by using water as coolant is higher by 0.2 bar than when ethylene glycol 50% used. Results also revealed that the value of LMTD of the gas cooler using ethylene glycol 50% is 24.3 % higher than the LMTD value when using water.

A tree T is called starlike [2], if it contains a vertex v for which deg (v) ? 3 and all other vertices of T have degree 1 or 2. If deg (v) = k, the starlike tree T is k – branched and T – v has k components, each of which are trees. In this paper, we characterize the 3 – branched starlike spanning trees of a given two dimensional mesh M(m, n) m, n ? 3 and then find its number with junction vertex [2] of degree 3.

100 g of dried leaves of Mentha spicata produced 1.1% of volatile oil by hydro distillation method. GC-MS, method used to identified the chemical compound of the volatile oil, it contained eighteen compounds, ten of them constituted as the major compounds, carvone (58.3%), cis-carveol 14.99%), limonene (8.5%), carvyl acetate (3.10%), ?-pinene (1.22%), ß –Pinene (2.11%), Menthone (1.08%), Menthol (1.01%), ß- bourbonene (1.98) and trans-Caryophyllene (1.75). The spearmint volatile oil more actively against gram positive bacteria (Staphylococcus aurous and Bacillus cereus) than gram negative bacteria,( Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa and Salmonella typhimurium). The activity of antibiotic Chloramphenicol, Ciprofloxacin, Tetracycline Ceftriaxone, and Gentamycin against bacteria found differences inhibition zoon. Among all antibiotic. ciprofloxacin have more activity against bacteria while Ceftriaxone have the lower activity.

Seafood is divinely rich by virtue of its high nutritional value. With the increasing knowledge of bio-functional properties associated with marine foods, utilization of the marine derivatives has been accelerated which will also prevent pollution in coastal areas. The objective of the study was to process chitosan by deacetylating chitin of crab and prawn shells. The degree of deacetylation was determined by FTIR. The fresh chitosan has been analyzed for its antioxidant and antimicrobial property that helps to determine the health benefits of the derived product. The chitosan was also incorporated in a food product to develop value added products and the shelf life of the products was evaluated. The antioxidant and antimicrobial activity of the chitosan was directly propositional to the concentration used. Value added product was prepared i.e. Cereal bar, Beetroot Squash, Orange Squash and Ice cream with three variations. 5% chitosan from crab and prawn was added in two variations and compared with the control one. The sensory evaluation was done with semi- trained panel members. The proximate analysis and quality indices was done with standard methods. The shelf life of the product was determined by the total aerobic microbial count in the period of 15 days. There was increase in the antioxidant and antimicrobial activity level in the chitosan as concentration was increased. The sensory acceptability was good in Crab based chitosan when compared with other variations. Similarly proximate and quality enhancement was observed in prawn based chitosan products than the other variations. The shelf life of the product was also increased. Hence, chitosan can be encouraged in value addition, since it acts as a functional compound and does not interferes with the sensorial factors. It also helps to improve the shelf life of the product.