نتایج جستجو برای: time storage
تعداد نتایج: 2035810 فیلتر نتایج به سال:
MicrosoftInternetExplorer4 Background and Objectives: Heavy metals including antimony and cobalt as two contaminant factors leach from polyethylene terephthalate packages into water under some conditions. Therefore, their detection was concerned at different storage conditions. Materials and Methods: Five time-temperature treatments were carried out for 5 water samples. Storage conditions ...
In this article the aging of HTPB based composite solid propellants have been studied by Van’t Hoff method. The F-factor of Van’t Hoff equation was calculated by dynamic mechanical analysis (DMA) for reference propellants sample that was equal 2.5. Then the accelerated aging program conditions have been determined by Van’t Hoff equation. According to accelerated aging program the reference prop...
The impact of chemical desiccation on yield showed contrasting results depending on seedmoisture content at the time of application. Its effects on seed deterioration are still unknownand could be modified by seed composition. Objectives were to evaluate the impact of chemicaldesiccation on: i) hybrid sunflower seed yield and composition at harvest time, ii) seeddeterioration during long-term s...
One of the difficulties of the liquid fuels is theirs shelf life because these fuels like other chemical materials become off spec after a period of time due to the tendency to the destructive reactions. This variation in fuel spec affects the chemical and physical properties of fuel and therefore the combustion performance. This subject is significant because of need to long time storage of fu...
The competitive storage model is analyzed in the literature discrete time and applied for empirical studies of markets agricultural commodities. In this model, there a storable commodity supplied at every period with stochastic disturbances, are traders who aim making speculative profits by using their storage. has established results such as existence an equilibrium price function, which depen...
In this research the effect of conventional and ohmic pasteurization and storage time at different temperatures on some bioactive components of Aloe vera gel juice was investigated. Aloe vera gel juice was pasteurized conventionally and ohmically at 90 ºC for 1 min. The effect of pasteurization on vitamin C, total phenolic content and juice color was evaluated. The samples pasteurized conv...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید