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The concentration distribution of components and particles in the system: tomato-water-sodium nitrate and assessment of the oxidation-reduction potential at different temperatures

Nurzat ŞAYKİYEVA | Canarbek İZAKOV | Zarlık MAYMEKOV

The paper considers a triple complex system of tomato, water and sodium nitrate. Taking into account the average macronutrient composition and moisture content of field and greenhouse tomatoes, physicochemical modeling of the system was carried out tomato-water-sodium nitrate. The hydrogen index of tomato was determined at various temperatures and it was noted that tomato medium was acidic. It is shown that with an increase in the content of sodium nitrate in the system: tomato - water - sodium nitrate within the temperature range from 278 to 293 K, the hydrogen index of tomato increases, i.e. ...More

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Real time traffic signal timing approach based on artificial neural network

Abdullah Erdal TÜMER

As the population increases, is more and more increasing the number of vehicles in cities. The increasing number of vehicle make traffic management complicated. Difficult traffic management leads to more fuel consumption, CO2 and other harmful emissions. Therefore, real-time optimization of traffic lights (signaling) used in traffic management can make traffic management more efficient. In this study, green light time is optimized by estimating the number of vehicles in an intersection with signal lights in Konya city center through artificial neural network. The results are evaluated with dif ...More

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Synthesis and characterization of carboxymethyl shrimp chitosan (CMSCh) from waste shrimp shell

Mustafa DOLAZ

Chitin, the main component of shellfish such as crab and shrimp, is one of the most used biopolymers after cellulose. Today, although recycling of waste is becoming increasingly important, large quantities of seafood shells such as crab and shrimp are being destroyed around the world without much evaluation. Chitosan, which is non-toxic, biodegradable-biocompatible and has many application advantages compared to chitin, is used in many sectors, especially cosmetics, pharmaceuticals and agriculture, as it shows superior properties compared to other biopolymers in terms of chemical and physical ...More

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Investigation of rheological behavior of Kyrgyz traditional food Sary mai

Canıl İSKAKOVA

In this study, the rheological properties of shelf-stable and calorie-rich traditional product Sary mai, known as ghee were investigated at various temperatures for the first time. It was found that ghee at 20-30°C reacted as a non-Newtonian pseudoplastic fluid with yield stress value and flow curves fitted to the Herschel-Bulkley model. With increasing the temperature (40-50°C), ghee become more fluidly and Ostwald-De-Waele model was found as the most appropriate to fit the flow curves with correlation coefficient R2 = 0.9985‒0.9999. The effective viscosity of ghee decreased from 2.613 to 0.0 ...More

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On the Recursive Sequence x(n+!) = x(n-14) / [1 + x(n-2) x(n-5) x(n-8) x(n-11)]

Burak OĞUL

In this paper, given solutions fort he following difference equation x(n+!) = x(n-14) / [1 + x(n-2) x(n-5) x(n-8) x(n-11)] where the initial conditions are positive real numbers. The initial conditions of the equation are arbitrary positive real numbers. We investigate periodic behavior of this equation. Also some numerical examples and graphs of solutions are given.

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