Polycyclic aromatic hydrocarbons are a group of important organic pollutants and should be concerned. General sources of PAHs are contamination of petroleum hydrocarbons and incomplete combusion of organic compounds. The recalcitrance of these compounds depends on the arrangment of benzene rings and their molecular weight. Besides they are carcinogenic and mutagenic to animals PAHs show several toxicity to plant such as decreasing shoot and root growth and photosynthetic rate. PAHs are toxic to plant at molecular level such as increasing oxidation pressure and decreasing gene expression of cell wall-loosening protein expansion. Photooxidized PAHs showed higher toxicity to plant than parent compounds. Plant species and some environmental factors such as soil pH affect to PAHs phytotoxicity. Phytotoxiciy of Polycyclic aromatic hydrocarbons to crop plant growing in Polycyclic aromatic hydrocarboncontaminated soil is an important environmental concern

Extractions of bioactive constituent from the Russula eburneureolata Hongo.stem bark of Xylocarpus gangeticus Parking. root and leaf of Walsura trichostemon Miq.and Parinari anamense Hancewith a polarity sequential extraction and maceration technique with hexaneethyl acetate and methanol.respectively.Crude extract was employed to evaluate the biological activity for their cytotoxic activity against human mouth carcinoma (KB) human small cell lung cancer (NCI-H187) and breast cancer (MCF-7)cancer cell lines tested using the Resazurin microplate assay (REMA).Antimycobacterial activity against Mycobacterium tuberculosis H37Ra strain (Anti-TB) using the Green Fluirescent Protein Microplate Assay (GFPMA)

The purpose of this reserch was study status problems and needs in media utilization of instructors of Rajamangala Institute Technology Chotwet Campus. Reserch gathers information from population 47 instructors. Quastionnaires were reserch tools. Percentage mean and standard deviation were used for data analysis. The result revesled that There was moderate in media utilization Tesching method and instruction were used moderately such as description discussion and demonstration highly used fechnique was experiment. Tools and equipments were used wodeklately such as loud-spesker overhead transparency projector were used highly. Instructional medias were used moderately highly used matenak were transparencies. transparent pens boards and resl meterials. The problem in media utilization was moderately perparation and buying had a moderste problem. High problem was lack of comveniency to produce educational media such as personel officers tools materials equipments buildings places and lack of budget in order to buy educational media. Chosen and use in educational media had a little bit problem but there weremoderately level in time consuming to prepare themselves and complicated to move. Quality and quantity of educational media had a moderste problem such as places rwewnt suitable with media utilization couldnt control the light of projectors amount of educational medias weremt sufficient with needs. SeNice had a moderate problem highly problem were lack of personnel to make photoes slides cassette videotape and lack of personnel to produce graphic chart and portary works for teaching compose not enough. The need of media utilization was highly in tools and equipments. Moderately needs were overhead transparency projectors and transpatent pens. The following needs were opaque projectors and projectors videotapes. Service had highly needs such as buying high quality educational media as a teaching compose The following was preparatory necessary educational media such as overhead transparency projectors loud-speskers and microphones permanency in all of class rooms.

This paper presents the development of an initial rotor position estimation of permanent magnet synchronous motors (PMSM) without a position sensors drives with embedded digital signal controller. The principle of the estimation is based on induced voltage of electromagnetic flux by injecting high-frequency voltage at standstill. The controller is embedded digital signal controller (DSC) due to the small and cheap controller. Experimental results show that changing initial frequency capable of reliable.

This research is an exploring research to be connected with the main purpose of learning about the satisfactions in working as other sides for supporting personal consists of supporting for government officers supporting for government staffs university staffs permanent employees and temporary employees in total 635 people. There are only 360 people of samples from the total as mentioned to be analyzed the factors and other satisfactions the result of this research is the level of surrounding factors in working as showing the average rate for all over as the normal level. In comparing with the personal factor and satisfaction were found that Male are much more than Female about satisfaction in all factors mentioned. And also single government staff there is most of satisfying than married and divorced status. Additionally the level of satisfaction will be reduced respectively as referring with ages type of working opportunity colleague and facilities but the satisfaction of reward will be much more which is depended on ages. Moreover the experienced staff will be much satisfied as follows: Type of working Reward Opportunity and Facilities but another side to be less satisfied are Colleague. However the responsibility of members in their family will be less satisfied almost all sides. Another thing the position is the most of satisfying colleague & facilities are next and reward & opportunity to be promoted as the last one. Moreover chief executive position satisfies more than head of department and operation respectively. Noise temperature dust smell air flow and colleague are the surrounding factors to be reflected with the satisfactions.