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Databases : Ulakbim (DergiPark) ✕Faculty / Institute : Mühendislik Fakültes ... ✕
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Water is an effective additive to fuel oil to reduce the concentration of soot in the gas phase

Mirlan MOLDOBAYEV | Kubat KEMELOV | Zarlık MAYMEKOV

Soot is one of the products of incomplete combustion of hydrocarbon fuels. It has the property of adsorption of active and carcinogenic substances on the surface of soot particles. In this regard, in burner equipment of medium and small power, it is required to develop and implement effective environmental measures to reduce emissions of soot particles. In this paper, the fuel oil-water-air system at a wide temperature range (T500-3000K) was studied and the ratio of gas-liquid flows (water content in fuel oil 5-15) at the maximum entropy of the system and the formation of soot in flue gases wa ...More

Article 2022 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)10 ( 2 ) 77 Views
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AMINO ACID COMPOSITION AND SOME PHYSICOCHEMICAL PARAMETERS OF MULTI-FLORAL HONEY FROM MOUNTAINOUS REGIONS OF KYRGYZSTAN = Kırgızistan'ın Dağlık Bölgelerinden Elde Edilen Polifloralı (Çok Çiçekli) Balın Amino Asit Bileşimi ve Bazı Fizikokimyasal Parametreleri

Ayçürök MACİTOVA

Mountain animal food products are at the center of attention due to their intrinsic value and, as such, mountain beekeeping products deserve attention and effort for their valorisation. The work aimed at investigating the quality traits of mountain honey samples from Kyrgyzstan, giving particular emphasis on the amino acid profiles and their possible relationship with the other chemical-physical characteristics. The moisture content, acidity, pH, and diastase activity of honey samples were within the limits established by normative documents. The honey samples showed a higher diastase activity ...More

Article 2022 Mühendislik Fakültesi Uludağ Arıcılık Dergisi22 ( 2 ) 53 Views
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Chemical Composition and Antioxidant Activity of Sea-Buckthorn (Hippophae rhamnoides L.) Grown in Issyk-Kul Region, Kyrgyz Republic

Aygül USUBALİYEVA | Nurzat TOTUBAYEVA

The fruit of sea-buckthorn (Hippophae rhamnoides L.) is a rich source of nutrients and phytochemicals. This study determined the chemical composition and antioxidant activity of sea-buckthorn grown in Issyk-Kul region, Kyrgyz Republic, during maturation from August to November. Three different assays [ferric reducing antioxidant power (FRAP), DPPH radical scavenging activity (DPPH), and cupric ion reducing antioxidant capacity (CUPRAC)] were used to determine the antioxidant activity of sea-buckthorn fruits. Sea-buckthorn fruits had a sugar content of 6.57-8.08 g/100g, a dietary fiber content ...More

Article 2022 Mühendislik Fakültesi Akademik Gıda20 ( 4 ) 53 Views
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Prediction of the formation of low-molecular components, particles, and condensed phases during thermal destruction of oil-contaminated soil

Kubat KEMELOV | Zarlık MAYMEKOV

In this study, thermodynamic modelling of the process of thermal destruction of oil-contaminated soil of Ozenmunaigas JSC, which includes compounds such as carbon, silicon, aluminum, iron, calcium, magnesium, sodium, potassium, chromium, phosphorus, manganese, copper, titanium, molybdenum, nickel, vanadium, and water, was carried out. The physicochemical and thermodynamic parameters of the complex system were calculated at P0.1 MPa, T598-3000 K. The concentration distribution of components, particles, and condensed phases in the gas phase has been established. In the process of thermal destruc ...More

Article 2023 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)11 ( 1 ) 36 Views
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Investigation of chemical, sensory, and rheological properties of Kyrgyz ethnic fermented beverage from cereals during cold storage

Canıl İSKAKOVA

Maksym is a Kyrgyz ethnic beverage made from milled cereals such as wheat, barley, or maize, boiled in water, and then fermented using yeast and lactic acid bacteria as a starter culture. The aim of this study was to investigate the changes in the consistency and sensory properties of Maksym after industrial production during refrigerated storage. The acidity of the beverage increases and the total soluble solids decrease after 21 days. The amount of lactic acid bacteria (LAB) and yeast after production were 9.36 and 9.46 log cfu/mL, respectively. After 21 days it is indicated that the amount ...More

Article 2023 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)11 ( 1 ) 25 Views
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Evaluation of Pomological Characteristics and Bioactive Compounds of Wild Sea Buckthorn (Hippophae Rhamnoides L.) and Hawthorn (Crataegus songarica) from Walnut-Fruit Forest Kyzyl-Unkur, Kyrgyzstan

Canıl İSKAKOVA | Cıldız ÖSKÖNBAEVA

There are different berries and fruits naturally growing in the walnut-fruit forests of Kyrgyzstan, however, their composition and bioactive compounds have not been studied. This study aims to contribute to the limited literature on dietary fibres, ash, bioactive compounds such as vitamin C, polyphenols, antioxidant activity, and physical parameters of wild sea buckthorn (Hippophae rhamnoides L.) and hawthorn (Crataegus songarica) from walnut-fruit forests of Kyrgyzstan. The standard food analysis techniques and DPPH assay were used to determine the nutritional composition and antioxidant acti ...More

Article 2023 Mühendislik Fakültesi KSU Tarım ve Doğa Dergisi - KSU Journal of Agriculture and Nature26 ( 5 ) 12 Views
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A new approach for the bigeometric newton method

Ercan ÇELİK

In this study, quadratic convergent new bigeometric Newton's method (nBGNM) was developed. For this, the basic definitions and theorems of bigeometric analysis, which is one of the non-Newtonian analysis, were used. Using the bigeometric Taylor expansion, a convergence analysis of this new method was given. Also, the new bigeometric Newton method (nBGNM) was compared in detail with the geometric (multiplicative) Newton method (GNM) and the classical Newton method (NM). Keyword: bigeometric analysis; bigeometric newton method; quadratic convergence; bigeometric taylor expansion

Article 2023 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)11 ( 2 ) 26 Views
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Development Of Haccp Plan For Flour Production Line = Un Üretim Hattında HACCP Planının Uygulanması

Ece SEMERCİOĞLU | Aydaykan KASIMAKUNOVA | Ruslan ADİL AKAY TEGİN

In this study, it is aimed to determine the critical control points of a flour production line in a millot Kyrgyzstan. Hazard analysis of the production line was done and 5 different critical control points have been identified and corresponding process steps are classified as follows: Reseiving of wheat, storage of wheat, removal of foreign materials by metal magnite, storage of ready-made product without packaging, storage of ready-made product. The safety of control points outside the critical control points is ensured by prerequisite programs. The HACCP Plan has been established for the pr ...More

Article 2017 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)5 ( 3 ) 91 Views
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Определение аминокислотного состава коровьего молока методом жидкостной хроматографии с применением предколоночной дериватизации = Determination of Amino Acid Composition of Cow’s Milk by Liquid Chromatography Using Precolumn Derivatization

Ayçürök MACİTOVA | Asılbek KULMIRZAYEV

Применение процедуры предколоночной дериватизации с диэтилэтоксиметиленмалонатом в определении содержания аминокислот молока, методом обращенно-фазовой хроматографии с диодно матричным детектированием было исследовано. Установлено влияние рН среды на коэффициент отклика. Оптимизированы условия модификации аминокислот образцов при проведении процедуры пробоподготовки. Было достигнуто полное разделение 18 аминокислот. В молоке коровы преобладала глутаминовая кислота, концентрация которой была в два раза больше чем лейцин и лизин, и в три раза больше чем аспарагиновая кислота.- The application o ...More

Article 2017 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)5 ( 3 ) 95 Views
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Жергиликтүү ак сорттогу төө буурчактар, кээ бир физикалык касиеттери жана аминкислоталык курам өзгөчөлүктөрү = Local Monophonic White Varieties Of Beans: Some Physical Properties And Especially The Amino Acid Composition

Aybek BODOŞOV

Изилдөөнүн максаты бир өӊчөй ак сорттогу: лопатка, китаянка, сахарный төө буурчак сортторунун дандын формасы, дандын өлчөмдөрү, 1000 даана дандын массасы, үймө тыгыздыгы, төгүлүү бурчу сыяктуу кээ бир физикалык касиеттерин жана аминкислоталык курамын изилдөө. Төө буурчактардын физикалык касиеттерин изилдөө буурчактарды өстүрүүдө, транспортоодо, тазалоодо, сорттоодо жана кутулоодо маанилүү роль ойнойт. Изилденген буурчак сортторунун дан катуулугу 0,43 мм, 0,08 мм, 0,05 мм жана үймө тыгыздыгы 685,11 кг/м3, 719,60 кг/м3, 666,84 кг/м3 болуп табылды. Изилдөөнүн экинчи баскычында төө буурчактардын а ...More

Article 2016 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)4 ( 1 ) 118 Views
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Assessment of the Simplified Equations Used For the Determination of µ1 and Biot Number in Unidirectional Drying Calculations in Solids

Coşkan ILICALI

The accuracy of the two simplified methods : Dincer and Dost (1996) and Dincer and Hussain (2004), used for the determination of the first root of the characteristic equation and the Biot numbers from experimental lag factor data in unidirectional drying of solids has been investigated. The tabulated values relating the lag factor to the first root of the characteristic equation and Biot number were taken as basis in the assessment. None of the methods considered yielded accurate predictions for the complete lag factor range. The calculation of μ1 and Biot number from the tabulated values of l ...More

Article 2016 Mühendislik Fakültesi MANAS Journal of Agriculture, Veterinary and Life Science (MJAVL)6 ( 1 ) 63 Views
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Определение некоторых физических и химических свойств зерен фасоли, выращиваемых в Кыргызстане = Determination of Some Physical and Chemical Properties of the Grains Beans Grown in Kyrgyzstan

Aybek BODOŞOV

Таласская область (северо-западная часть Кыргызстана) является основным производителем фасоли в Кыргызстане. Несмотря на достаточный объем производимой фасоли не изучены физические свойства и химический состав местных сортов зерен фасоли, хотя играют большую роль при производстве, транспортировке, хранении. Посев, обработка и уборка фасоли требуют специализированной техники, которая учитывает физические особенности зерен фасоли. В этой статье изучены физические свойства:масса 1000 шт., число падения, объемная масса, твердость, длина, ширина, толщина, форма и цвет зерен, а также химический сост ...More

Article 2016 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)4 ( 2 ) 111 Views
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