Objective: The purpose of the present investigation was to assess antifungal characterization of Burkholderia gladioli strain VIMP03 (JQ867372), an isolate from sugar beet rhizosphere.Methods: Antifungal characterization was carried out by biochemical, dual culture, and agar well diffusion methods against Ceratocystis paradoxa, a soilborne pathogen of sugarcane and other crops. Culture filtrate and ethyl acetate extract obtained from culture supernatant were analyzed by highperformance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) analyses, respectively.
Results:The culture filtrate and ethyl acetate extract exhibited effective antifungal activity. Organic acid profile of the culture filtrate was determined. Acetic acid was mainly produced by the culture under study. The GC-MS analysis of ethyl acetate extract documented the presence of compounds including tetratetracontane, 9-nonadecene, erucic acid, and other hydrocarbon derivatives.
Conclusion:The GC-MS, HPLC, and biochemical profiles of B. gladioli strain VIMP03 (JQ867372) revealed its agro clinical-antifungal potential.
Testing department of many automobile and electrical industries requires test rig for checking feasibility of the critical components at the very low temperature about-40℃ to-50℃. Automobile's electrical equipment's operating in cold weather regions are subjected to change their properties so their functions may not be desirable. There are always two factors for products used in cold weather-safety and function. Functionality of the electrical components can also be altered or negatively affected by cold temperatures. In military vehicles, due to low temperature electrical components may fail or may not work properly, hence safety will be in dangerous zone. Failure or functionality damage occurs in low temperature regions because water will condense on the circuit boards and cause problems. Therefore, testing at-50℃ is very essential to check feasibility of operation with temperatures because components change with temperatures, to the point where they may no longer operate reliably, may not start up or may quit entirely. Hence, verification of reliability of electrical, electronic and mechanical components for operating at low temperature region has become a necessity. This paper discusses the component design and readings obtained from cascade refrigeration system operating at-50℃ , which is designed for the temperature of-60℃. Further, it is shown how COP of actual system is differ from design COP.
In this research work, we have synthesized nanocrystalline Bi 2 Te 3 thin films for photoelectrochemical (PEC) solar cell application by potentiostatic electrodeposition method on stainless steel substrates. Subsequently films were irradiated with electron beam irradiation (EBI) of energy 4.5 MeV at various doses of irradiation ranging from 10 to 50 kGy. The experimental results showed that synthesized Bi 2 Te 3 thin films having polycrystalline nature and rhombohedral crystal structure with momentous morphological digression through various doses of irradiation. The electrochemical active surface area (ECSA) and photoelectrochemical (PEC) performance of Bi 2 Te 3 thin films were improved well at irradiation dose of 40 kGy. The calculated values of photoconversion efficiency and fill factor for Bi 2 Te 3 thin film were found to be 0.1837% and 0.5383, respectively. The values of photoconversion efficiency and fill factor of same electrode before irradiation have values 0.0987% and 0.3979, respectively. The enhancement in efficiency and fill factor due to EBI were found 53% and 74%, respectively. The enhancement in PEC properties is due to increased active surface area of the Bi 2 Te 3 films after irradiation dose. The results showed that, EBI are capable to strengthen the quality of electrode for PEC solar cell application.
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