The study presents original contributions to the researches developed in the class of heterocyclic derivatives with potential biological activity. The objective of this study is to evaluate antibacterial activity of new derivatives sinthetized. Synthesis was done by obtaining new molecules with pyralozone structure which combine two pharmacore entities: the amidosulfonyl-R1,R2 phenoxyacetil with the 3,5-dimethyl pyrazole which can have potential biological properties. The microbial properties were confirmed by the microbiological tests. The synthetized compounds were evaluated by measuring zone diameters of bacterial growth inhibition on different types of strains microorganisms: Staphylococcus aureus, Escherichia coli and Candida Albicans.

The abounding views on composite’s damage potential evaluations restricts composite’s lifecycle computations and associated decision making to metal-rooted composites due to the dearth of literature contributions on agro-rooted hardness evaluations of polymer composites. In recent times, nevertheless, appreciation has expanded that particulate forms of selected agro-rooted reinforced polymer composites such as orange peels, periwinkle shells, palm kernel shells, egg shell and coconut shells are as well substantial drivers of micro-hardness information for the life-cycle cost computations of automotive parts replacements due to their cassinogenic influences (i.e. brake pads). Rooted on experimental arguments, overwhelming facts are provide in a new way concerning the hardness values of some hitherto unexplored dual blends of reinforced agro-based composites mentioned earlier. Hardness tests was carried out on epoxy composites based on the dual reinforcement mixtures of (OPp/CSp), (PKSp/CSp), (PSp/ESp), (OPp/PSp) and (PKSp/ESp) in polymer composites of volume fractions. The composites were post-cured under three different temperatures, 80, 100 and 120oC. For the 80oC post-cured composites. The (15PKSp/10CSp) and (20PKSp/5CSp)% composites (formulation 2) had the highest hardness of 29.3 HV under all the post-cured conditions. A second aspect of the work is to explore an investigation on the relationship between the hardness, tensile, impact and flexural strength properties of five dual particle filled epoxy composites. The different relationships for each composite were represented by mathematical models with the hardness fitted as the response variable while the remaining properties were adjusted as the predictor variables at six levels of observations using the multiple regression analysis. A confidence interval of 95 % and p-value of < 0.05 were used in the build up to the models and each model showed good significance and high correlation (R 2 ) values with the (PKSp/ESp) model obtaining the highest R 2 of 0.972. The models helped to understand which of the predictor variables was most relevant to the hardness response variable of the composite which will help to make informed decisions on practical usage. The compelling results therefore influence the current research landscape and perceptions on micro-hardness determinations in an effort for more effective damage potential evaluations of polymer composites.

This research article presents use thermoelectric for reduce temperature of cell electric field corona of smell eliminator as this eliminator using intensity electric field force on principle of (plasma) corona discharge and pulse high voltage switching power supply. The power supply is based on a mini converter. The converter is designed to operate high frequency more than 30 kHz and Power MOSFET is switching device through high voltage high frequency switching transformer#TLF14690. The circuit is capable of electric field intensity at 15 kV/cm for electric field cell. The problem incurred is heat come up in electric field cell resulting high consumption rate of efficiency eliminate smell (smell is Hydrogen Sulfide : H2S). Therefore researcher tries to find a way to reduce temperature of electric field cell by using cool air producing from thermoelectric to observe temperature, ozone gas quantity and H2S gas quantity. Therefore in testing we measure temperature, ozone gas quantity and H2S gas quantity at cell electric field before and after installation of cool air production system from thermoelectric. The testing result appears that before installation cool air production system from thermoelectric temperature is 29?C, ozone gas quantity is 1.5 ppm and H2S quantity is 150 ppm. And after installation cool air production system from thermoelectric temperature is 23?C, ozone gas quantity is 2.95 ppm and H2S quantity is 25 ppm. Therefore it is conclude that cool air production system from thermoelectric can reduce temperature, increase ozone gas quantity and decrease H2S quantity. And in the future researcher will develop application of cool air system from thermoelectric to reduce temperature in other industrial system and commercial innovations application

Corrosion is a real risk of the steel constructions because this phenomenon cause mass loss. Some kind of the corrosion is well monitorable but others are difficult to detect. Known that the heat treatment caused microstructure changement can cause decreasing the corrosion resistance in case of unstabilized stainless steels. The reason of this problem, that the heat can cause chromium-carbide (Cr23C6) precipitation simultaneously with the reduction of the chromium content in the local grain boundaries. The chromium content ensures the corrosion resistance level. We wanted to find a relationship between the corrosion resistance and the heat treatment affected microstructural changement [1-3]

Nowadays, all the people are pursuing health for longevity. Thus, well sleeping is the extremely important physical need in our life time; however, there are 6 million people who have suffered from the Sleep apnea. The research shows that Sleep apnea has the relation between cause and effect to many diseases such as metabolic disease, obesity, and cardiovascular disease. Sleep apnea has to be diagnosed by polysomnography in some specific hospital sleep center; however, the testing equipment is expensive and not widespread currently. Therefore, the simple Sleep apnea detector is highly convenience and low cost should be expend on all the market directly. Our design takes the HT66F70A from Holtek Semiconductor Company as the overall control core; equipped with perfect functional user interface, assemble infrared sensor, temperature sensor and triaxial accelerometer to detect breathing, heartbeat, and blood oxygen saturation, according to all these data to inspect the symptom of Sleep apnea. This product which possesses advantages of high convenience and low cost is good to be promoted especially in the county side which is lack of medical resources.