Koleksiyon/r/bayburt/10001

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Koleksiyondaki öğeler

  • MakaleAçık Erişim2021Scopus SJRQ1
    Assessment of Artificial Intelligence Models for Estimating Lengths of Gradually Varied Flow Profiles

    Niazkar, Majid; Hajizadeh Mishi, Farshad; Eryilmaz Türkkan, Gökçen

    The study of water surface profiles is beneficial to various applications in water resources management. In this study, two artificial intelligence (AI) models named the artificial neural network (ANN) and genetic programming (GP) were employed to estimate the length of six steady GVF profiles for the first time. The AI models were trained using a database consisting of 5154 dimensionless cases. A comparison was carried out to assess the performances of the AI techniques for estimating lengths of 330 GVF profiles in both mild and steep slopes in trapezoidal channels. The corresponding GVF lengths were also calculated by 1-step, 3-step, and 5-step direct step methods for comparison purposes. Based on six metrics used for the comparative analysis, GP and the ANN improve five out of six metrics computed by the 1-step direct step method for both mild and steep slopes. Moreover, GP enhanced GVF lengths estimated by the 3-step direct step method based on three out of six accuracy indices when the channel slope is higher and lower than the critical slope. Additionally, the performances of the AI techniques were also investigated depending on comparing the water depth of each case and the corresponding normal and critical grade lines. Furthermore, the results show that the more the number of subreaches considered in the direct method, the better the results will be achieved with the compensation of much more computational efforts. The achieved improvements can be used in further studies to improve modeling water surface profiles in channel networks and hydraulic structure designs.

    • SDG 6 · Temiz Su ve Sanitasyon
    AtıfScopus11WoS7OpenAlex12
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  • MakaleAçık Erişim2020Scopus SJRQ3
    Model-based dynamic fractional-order sliding mode controller design for performance analysis and control of a coupled tank liquid-level system

    Sekban, Hayriye Tugba; Can, Kaan; Basci, Abdullah

    In this paper, a model-based dynamic fractionalorder sliding mode controller (FOSMC) is designed and implemented to a coupled tank experimental setup for controlling the liquid level. First, a model-based dynamic sliding-mode controller is designed by using the dynamic equations of a vertically positioned coupled tank system. Then, the sliding surface of the sliding-mode controller is defined in fractional order so that the designed controller can make better water level tracking. The liquid level control of the system is realized in two different steps. In the first step, the water level of the upper tank is controlled by a pump and in this application the bottom tank is not considered. In the second step, the water level of the bottom tank is controlled with upper tank's output water. In addition, a model-based dynamic sliding mode controller (SMC) is also applied to the system to show the performance of the proposed controller in terms of robustness to disturbances, reference tracking and error elimination capability. Experimental results show that the proposed controller reduces the reference tracking error by 3.68% and 10.17% for the upper tank and 17.07% for the bottom tank when compared to the SMC, and the control signal contains more chattering than the SMC.

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  • Editöre MektupAçık Erişim2022Scopus SJRQ2
    Three new records for the flora of Turkey: Campanula lyrata subsp. icarica (Campanulaceae), Erysimum aureum (Brassicaceae) and Stachys benthamiana (Lamiaceae)

    Özdöl, Tuǧkan; Güner, Özal; Sefali, Abdurrahman; Akçiçek, Ekrem; Dirmenci, Tuncay; Yildirim, Hasan

    AtıfScopus6WoS5
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  • MakaleYalnız künye2021Scopus SJRQ1
    Production of lactose derivative hetero-oligosaccharides from whey by glucansucrase E81 and determination of prebiotic functions

    İspirli, Hümeyra; Dertli, Enes

    Bioactive oligosaccharides are important compounds for development of functional foods and ingredients. In this study, lactose derivative hetero-oligosaccharides were produced by acceptor reaction of glucansucrase E81 with whey. The synthesis of oligosaccharides was monitored by Thin Layer Chromatography (TLC) analysis followed by 1H and 13C Nuclear Magnetic Resonance (NMR) spectroscopy analysis which demonstrated the glycosylation of lactose with α-(1 → 2), α-(1 → 3) and α-(1 → 4) linkages. Liquid chromatography–mass spectrometry (LC-MS) analysis demonstrated the formation of DP 7 oligosaccharides from whey. The synthesized oligosaccharides were not digested under in vitro human gastric juice and α-amylase conditions. The prebiotic effect of lactose derivative hetero-oligosaccharides was tested and no growth in pathogenic strains was observed whereas certain probiotic strains utilised lactose derivative hetero-oligosaccharides as Carbon source and their growth was promoted. These findings can be important to reveal the potential of glucansucrases to produce functional oligosaccharides from different sources including waste materials.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus17WoS16OpenAlex16
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  • MakaleAçık Erişim2022Scopus SJRQ1
    Optimization of Biocatalytic Production of Enantiopure (S)-1-(4-Methoxyphenyl) Ethanol with Lactobacillus senmaizuke Using the Box–Behnken Design-Based Model

    Kavi, Mervenur; Özdemir, Akın; Dertli, Enes; Şahin, Engin

    Enantiomerically pure (S)-1-(4-methoxyphenyl) ethanol is a significant molecule for the production of various drug intermediates. (S)-1-(4-methoxyphenyl) ethanol was synthesized from 4-methoxyacetophenone using Lactobacillus senmaizuke as a biocatalyst. In addition, optimization of experimental conditions is important to analyze the role of culture parameters for catalytic bioreduction reactions. For this particular purpose, the experimental conditions of pH, incubation period, temperature, and agitation speed were investigated with the Box–Behnken experimental design-based proposed optimization model. (S)-1-(4-methoxyphenyl) ethanol, which can be used for the synthesis of antihistamines, including diphenhydramine hydrochloride and loratadine cycloalkyl [b] indoles that have the treatment function for an allergic response, was obtained in > 99% conversion, > 99% enantiomeric excess and 96% yield with whole cells of L. senmaizukei at this optimization conditions: pH = 5.80, the temperature = 29 °C, incubation period = 50 h, and agitation speed = 155 rpm. The bioreduction of 4-methoxyacetophenone efficiency was importantly affected by the quadratic and linear effects of experimental design parameters. Besides, the results demonstrate the importance of design parameters for catalytic bioreduction reactions. It is also concluded that the results show the effectiveness of the Box–Behnken experimental design-based proposed model to obtain optimum operating conditions of design parameters for catalytic bioreduction reactions.

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  • MakaleYalnız künye2019Scopus SJRQ1
    Partial characterization of a levan type exopolysaccharide (EPS) produced by Leuconostoc mesenteroides showing immunostimulatory and antioxidant activities

    Taylan, Osman; Yilmaz, Mustafa Tahsin; Dertli, Enes

    Leuconostoc mesenteroides S81 was isolated from traditional sourdough as an exopolysaccharide (EPS) producer strain. The monosaccharide composition of the EPS from strain S81 was characterized by HPLC analysis and only fructose was found in the repeating unit structure. The NMR spectroscopy analysis revealed that EPS was a levan type EPS as a β-(2 → 6)-linked fructan. The FTIR analysis further confirmed the presence of the furanoid rings in the EPS structure. The levan S81 showed high level of thermal stability determined by DSC and TGA analysis. The lyophilised levan S81 showed a sheet-like compact morphology and its aqueous solution formed spheroidal lumps with a compact structure detected by SEM and AFM analysis, respectively. Importantly the levan S81 showed a high level of immunomodulatory role, induced the anti-inflammatory cytokine IL-4, and exhibited a strong antioxidant capacity with EC50 value 1.7 mg mL−1 obtained by hydroxyl radical scavenging activity test under in vitro conditions. These findings reveal potential of levan S81 for technological purposes and as a potential natural immunomodulatory and antioxidant.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus132WoS112OpenAlex126
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  • MakaleAçık Erişim2022Scopus SJRQ1
    Broadband Soil Permittivity Measurements Using a Novel De-Embedding Line-Line Method

    Hasar, Hafize; Hasar, Ugur C.; Kaya, Yunus; Oztas, Taskin; Canbolat, Mustafa Y.; Aslan, Nevzat; Ertugrul, Mehmet; Ramahi, Omar M.

    A new de-embedding line-line method has been proposed for accurate complex relative permittivity ( ε ᵣ ) determination of soil samples loaded into an EIA 1-5/8' coaxial transmission line measurement system. The method has three main features. First, it bypasses the requirement of calibration of this system by using only two identical coaxial lines with different lengths. Second, it does not need any numerical technique for ε ᵣ determination. Third, it does not require knowledge of electromagnetic properties and thickness information of the bead used for supporting soil samples. The method is next validated by simulations performed using a full 3-D electromagnetic simulation program (CST Microwave Studio) and by ε ᵣ measurement of a polyethylene (PE) material. Finally, ε ᵣ values of three air-dried and water-saturated soil samples having 90% or more sand content with different electrical conductivities (ECs) and gathered from different areas of the city Gaziantep in Turkey, were measured.

    AtıfScopus18WoS16OpenAlex16
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  • MakaleAçık Erişim2019
    Articles on biotechnology teaching: Thematic content analysis study

    Toman, Ufuk

    This thematic content analysis done about teaching biotechnology which is researched in Turkey is conducted with 64 articles, from a total of 45 magazines published in Turkey from 2003 to 2018. An analysis of the research trends of Turkish researchers based on teaching biotechnology. In this research, it has been tried to guide the researchers by determining the trends in the field and research methods frequently used(changes according to publication years and languages, what kind of research problems on qualitative research subjects are emphasised, what research methods are used, data collection tools, sample or working group, data analysis methods). In studies conducted to investigate the biotechnology education in Turkey, it shows that there is not adequate studies to address the issue of biotechnology education. Biotechnology and its sub-rules, cloning, genetically modified organisms, biotechnological vaccines, genetic engineering and microbiology may require more space in curricula at early learning levels.

    • SDG 4 · Nitelikli Eğitim
    AtıfScopus7OpenAlex8
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  • MakaleYalnız künye2022Scopus SJRQ2
    Evaluation of γ-rays and neutron shielding parameters of high dense bismo-boro-tellurite glasses: Comparative study

    Şakar, E.; Özpolat, Ö.F.; Alım, B.; Alsaif, Norah A.M.; Rammah, Y.S.

    The main high energy radiation-matter interaction parameters of the 30B2O3-(70-x)TeO2-xBi2O3, where x = 40, 50, 60 and 70 mol% (BTB) glasses have been studied in the wide energy range. The theoretical calculations were made for some special X and γ-ray energies emitted from Fe (55), Am (241), Cs (137) and Co (60) radioactive sources for photon energies in the range of 15 keV - 15 MeV. All evaluated radiation shielding parameters were compared with some selected concretes (Ordinary concrete (OC), Hematite-Serpenite (HS) and Basalt-Magnetide (BM)), and glasses (Te and Pb based). The BTB- glasses have higher mass attenuation coefficient (MAC) values than other glasses (Te and Pb based) and concretes (OC, HS, and BM). The half value layer (HVL) of the investigated BTB-glasses has the following trend: OC > HS > BM > Te-Glass > Pb-glass > BTB40 > BTB50 > BTB60 > BTB70. In terms of mean free path (MFP), the BTB70 coded glass has the lowest MFP values due to the highest Bi2O3 content. In terms of the Zeff values of BTB coded glasses vary between 70 and 75 at the lowest energy level. The effective atomic number (Zeff) values in this energy region were 48.974 and 63.102 for Te and Pb glasses, respectively, and 13,339, 15.520 and 15.894 for OC, HS and BM concretes. The BTB-coded glasses have lower exposure buildup factor (EBF) than all other glass and concrete up to 3 MeV photon energies. The energy absorption buildup factor (EABF) values range from 1 to 4.2 for all samples at 1 MFP and at 40 MFP values, it reaches 108 for BTB coded glasses and 1010 for Te-based glass. Results confirmed that BTB- glasses, especially BTB70 glass sample can be used in applications requiring radiation safety.

    AtıfScopus17WoS16OpenAlex17
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  • Kitap BölümüYalnız künye2020
    Marketing finance, infrastructure, and entrepreneurshi

    Kara, Adnan

    This chapter examines the relationship between marketing finance, infrastructure, and entrepreneurship. The aim of the study is to show that countries' financial development improves infrastructure, reduces risks, and increases entrepreneurship. Marketing finance is the provision and management of monetary funds in order to carry out marketing activities. Marketing infrastructure is the existence of physical systems such as logistics, advertising agencies and research companies that carry out marketing activities. Marketing entrepreneurship is the transformation of innovative ideas into economic activities in coordination with marketing process management. In conclusion of the study, the development of the financial system affects the competitiveness. Thus, more marketing investments are made in a more competitive environment.

  • Derleme MakaleAçık Erişim2021
    Grammar teaching in the turkish language course curriculum: An examination in the context of acquisitions, activity, and teachers' opinions

    Kodan, Hülya; Kara, Kürşad

    This research aimed to reveal teachers' opinions about how the grammar-teaching process is related to the acquisitions in the curriculum, activities, and acquisitions presented in the textbooks teaching in mother tongue, the study reviewed different textbooks from four publishers, Cem, Sonuç, Koza, and Ministry of National Education (MEB) publications prepared for the 2018 primary school Turkish language course curriculum and Education Information Network (EBA) of the Turkish Ministry of Education. Moreover, opinions of ten primary school teachers who have taught all grades regarding the teaching process for grammar acquisition were investigated. The study conducted a case study method, which is one of the qualitative research techniques. Besides, a document analysis was conducted to obtain the research findings. Structured interview protocol and document review were used as the data collection tool. The findings of the study revealed that acquisition in the learning areas of reading and writing for grammar in the curriculum was not clearly and transparently identified, and the limits of the teaching framework were not specified. The study findings also revealed that information was transferred only in the majority of the grammar activities in the textbooks. Also, classroom teachers reported that they used different methods on the subjects they could embody in the teaching process, but they claimed to have difficulties in teaching abstract concepts.

    • SDG 4 · Nitelikli Eğitim
    AtıfScopus1OpenAlex1
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  • MakaleAçık Erişim2019Scopus SJRQ3
    Integrated QFD, fuzzy linear regression and ZOGP: An application of e-store design

    Celik, Pelin; Ustasuleyman, Talha

    In the current, highly competitive marketplace, customer demand is a major factor in the product design process. Most firms make an effort to indicate that their products differ from the competitors’ products. The purpose of this paper is to understand customers’ expectations of and technical requirements for e-stores and to evaluate most popular e-stores in Turkey (i.e., ES1, ES2, ES3). In this study, the authors aim to understand the customer expectations and technical requirements by using quality function deployment (QFD). To prepare the house of quality (HoQ), the authors surveyed 20 experts who are customers who have elite membership (their expenses for these e-stores are more than regular customers and have elite cards) of the three e-stores and academicians. After creating the HoQ, the authors employ fuzzy linear regression to evaluate the relationships between customer expectations and technical requirements and among technical requirements themselves. Finally, the authors use zero-one goal programming (ZOGP) to select the most desirable e-store.

    AtıfScopus1WoS1OpenAlex1
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  • MakaleYayıncıda açık erişim2021Scopus SJRQ2
    Determination of flexural properties of hybrid composite using Cowper-Symonds rate-dependent material model

    Erbayrak, Engin

    This study addressed to determine the flexural properties of hybrid composite laminates (HCAFRE) under the strain rate sensitivity. The hybrid composite laminate was formed as consecutive stacking of a sequence of plain woven carbon fiber reinforced epoxy (CFRE) and a plain-woven aramid fiber reinforced epoxy (AFRE) laminates. The flexural tests were carried out at four different strain rates (0.01, 0.11, 0.55, 1.1 s−1) to determine the strain rate sensitivity of the HCAFRE. Moreover, the strain rate sensitivity of CFRE and AFRE was also determined individually. The effect of different fiber orientations (0°, 45°, and 90°) on the flexural properties of the composite laminates were also investigated at the scope of this study. In numerical analysis, composite laminates (CFRE, AFRE, and HCAFRE) were constituted in LS-DYNA finite element program using the Cowper-Symonds material model (MAT 112) which includes strain rate dependency. Consequently, it was seen that the experimental and numerical results were indicated a similar tendency to each other. Therefore, it was understood that the Cowper-Symonds material model is suited for the flexural behavior model of composite laminates under different strain rates.

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  • MakaleYalnız künye2022Scopus SJRQ2
    Synthesis of 7-azaindole based carbohydrazides and 1,3,4-oxadiazoles; Antioxidant activity, α-glucosidase inhibition properties and docking study

    Izgi, Samet; Sengul, Ibrahim F.; Şahin, Engin; Koca, Mehmet Serdar; Cebeci, Fatma; Kandemir, Hakan

    In this current work, 7-azaindole based 1,3,4-oxadiazoles have been successfully prepared by treatment of 3-(hydrazonomethyl)-7-azaindole with the different acyl chlorides or acetic anhydrides to give the corresponding carbohydrazides, followed by iodine mediated synthetic protocol in order to afford the corresponding 2,5-disubstituted 1,3,4-oxadiazoles. The full characterization data of the novel compounds were obtained by utilizing 1H NMR, 13C NMR, FT-IR, high-resolution mass spectrometry and single crystal X-ray diffraction techniques. The antioxidant activity and α-glucosidase inhibition potential of the prepared compounds are examined by in vitro assays. The targeted hydrazide linked 7-azaindoles and their corresponding cyclized form 1,3,4-oxadiazoles exhibited inhibitory potential with IC50 values ranges between 0.46 and 24.92 mM. Plausible binding mode and interaction of ligands with α-glucosidase enzyme have been studied by molecular docking, supporting the experimental results.

    AtıfScopus28WoS27
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  • MakaleAçık Erişim2019Scopus SJRQ1
    Impact of heat treatment and acid gelation on polyphenol enriched milk samples

    Bayraktar, M. Kilic; Harbourne, N.B.; Fagan, C.C.

    The effects of heat treatment and the stage of polyphenol addition to milk before or after heat treatment on the total phenolic content (TPC), ferric-ion reducing antioxidant power (FRAP), pH, casein micelle size (CMS) and whey protein denaturation content of milk-polyphenol mixtures were investigated. Four sources of phenolic compounds (green tea, white grape, tannic acid, gallic acid) were incorporated into pasteurized-skim milk. A heat treatment (85 °C for 30 min) was applied to pasteurized-skim milk either before (MhP) or after polyphenols addition (MhPh). Acid milk gels were produced using MhPh samples, and their TPC and FRAP were determined. Heat treatment decreased the TPC and FRAP values of the samples, except for tannic acid, probably due to increased polyphenol-protein interactions. However, MhPh tannic acid sample resulted in significantly higher FRAP value than MhP. The addition of gallic acid before heat treatment (MhPh) significantly increased CMS due to the lower pH of this sample during heating. Acid gelation decreased the extractable polyphenols, however there was no significant different on FRAP between acid gel and MhPh milk samples. This study showed that the properties of phenolic source, particularly pH, and the stage of polyphenol addition to milk had an impact on selected properties.

    AtıfScopus25WoS23OpenAlex24
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  • MakaleYalnız künye2020Scopus SJRQ2
    Electrical properties of Graphene/Silicon structure with Al2O3 interlayer

    Kaymak, Nuriye; Bayram, Ozkan; Tataroğlu, Adem; Bilge Ocak, Sema; Oz Orhan, Elif

    The electrical properties of the fabricated Al/Gr/Al2O3/p-Si structure have been analyzed using frequency-dependent capacitance/conductance–voltage (C/G–V) measurements. Graphene (Gr) nanosheets were grown on to copper (Cu) catalyst substrate, which has 99.99% purity, by Chemical Vapor Deposition (CVD) technique, and then the Graphene was transferred on Al2O3/p-Si by the standard transfer process. The Graphene structures have been characterized by Raman Spectroscopy and Transmission Electron Microscopy (TEM) analyses, and the results of both analyses confirmed the monolayer/bilayer Graphene nanostructure. The forward and reverse bias G–V and C–V measurements of this structure have been performed in 10 kHz–400 kHz and at 300 K. The frequency dispersion in C and G can be evaluated for interface state density (Dit) and series resistance (Rs) values. The values of Dit and Rs are dependent on frequency and increase with decreasing frequency. The Rs- V graph shows a peak form at all frequencies in the depletion region and vanishes with increasing frequency. The obtained results suggest that the prepared structure can be used in electronic device applications.

    AtıfScopus25WoS23OpenAlex23
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  • MakaleAçık Erişim2020
    APPLICATION OF VARIATION OF THE PARAMETERS METHOD FOR MICROPOLAR FLOW IN A POROUS CHANNEL

    Güngör, Osman; Arslantürk, Cihat

    This work devoted to study the injective micropolar flow in a porous channel. The flow is driven by suction or injection on the channel walls, and the micropolar model is used to characterize the working fluid. The governing nonlinear partial differential equations are reduced to the nonlinear ordinary coupled differential equations by using Ber-man’s similarity transformation. These equations are solved for large mass transfer via variation of parameters method (VPM) which has been used effectively in the solution of nonlinear equations recently. This method has not previously been applied to a problem of micropolar flow. The results of the variation of parameters method are found to be in excellent agreement with the results of the Matlab bvp4c solver (NUM). With this validity, the effects of the some important parameters on the velocity and rotation profile of micropolar flow are discussed in detail. It can be seen that increases in the values N1 and N3have different results in comparison with N2 increasing.

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  • MakaleYalnız künye2021Scopus SJRQ2
    Determination of mechanical properties of polymer matrix composites reinforced with electrospinning N66, PAN, PVA and PVC nanofibers: A comparative study

    Uslu, Emin; Gavgali, Mehmet; Erdal, Mehmet Okan; Yazman, Şakir; Gemi, Lokman

    Fiber-reinforced polymer matrix composites are widely used in many structural applications thanks to their exceptional properties. In recent years, the use of electrospinning nanofibers with unique properties as reinforcement agents has attracted a great deal of attention in improving the performance of these composites. Although there are many promising studies on this subject in the literature, there are still many issues that need to be investigated. In this study, an experimental research reporting on the production and mechanical properties of two-phase polymer matrix composites reinforced with various types of thermoplastic nanofibers is presented. Nanofiber mats were produced from N66, PAN, PVA, and PVC polymers by electrospinning technique. Composites were obtained by embedding these nanofibers into epoxy resin by using vacuum infusion process. Mechanical properties of the composites were determined by performing tensile tests and the results were compared. The morphologies of nanofibers and the fracture surfaces of the composites were examined with SEM. Finally, statistical evaluations were carried out using mechanical data. According to tensile test results, the best ultimate tensile strength of 38.04 ± 3.7 MPa, elongation of 2.46 ± 0.4 % and toughness of 532 ± 137 kJ/m3 were obtained from N66 nanofiber composite, while PVA nanofiber composite was the most favorable in terms of Young's modulus (2.40 GPa). It was observed that the polymer type significantly affected the performance of the composite. In addition to the best mechanical properties, N66 composite was found to be more stable and reproducible than other specimens. Due to the good impregnation of nanofibers, it was conclusively determined that the use of vacuum infusion process is suitable for the production of these materials.

    AtıfScopus79WoS73OpenAlex81
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  • MakaleAçık Erişim2022Scopus SJRQ3
    Production of enantiomerically enriched chiral carbinols using whole-cell biocatalyst

    Baydaş, Yasemin; Kalay, Erbay; Şahin, Engin

    Biocatalytic asymmetric reduction of ketone is an efficient method for the production of chiral carbinols. The study indicates selective bioreduction of different ketones (1–8) to their respective (R)-alcohols (1a–8a) in low to high selectivity (0- >99%) with good yields (11–96%). In this work, whole-cell of Lactobacillus kefiri P2 catalysed enantioselective reduction of various prochiral ketones was investigated. (R)-4-Phenyl-2-butanol 2a, which is used as a precursor to antihypertensive agents and spasmolytics (anti-epileptic agents), was obtained using L kefiri P2 in 99% conversion and 91% enantiomeric excess (ee). Moreover, bioreduction of 2-methyl-1-phenylpropan-1-one substrate 8, containing a branched alkyl chain and difficult to asymmetric reduction with chemical catalysts as an enantioselective, to (R)-2-methyl-1-phenylpropan-1-ol (8a) in enantiomerically pure form was carried out in excellent yield (96%). The gram-scale production was carried out, and 9.70 g of (R)-2-methyl-1-phenylpropan-1-ol (8a) in enantiomerically pure form was obtained in 96% yield. Also especially, the yield and gram scale of (R)-2-methyl-1-phenylpropan-1-ol (8a) synthesised through catalytic asymmetric reduction using the biocatalyst was the highest report so far. The efficiency of L kefiri P2 for the conversion of the substrates and ee of products were markedly influenced by the steric factors of the substrates. This is a cheap, clean and eco-friendly process for production of chiral carbinols compared to chemical processes.

    AtıfScopus5WoS5OpenAlex6
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  • MakaleYalnız künye2020
    DYNAMIC BEHAVIOUR OF HISTORICAL BAYBURT GRAND MOSQUE

    Yurdakul, Muhammet; Yilmaz, Fatih; Artar, Musa

    In this study, the locations of the damages that would occur when a historical building was exposed to different earthquakes were determined. The selected building is Bayburt Ulu Mosque located in the city center of Bayburt and it was built by the Anatolian Seljuk Sultan II. Gıyaseddin. This selected historical building is modelled according to the macro modelling technique in the SAP2000 program using the finite element method. Modules of elasticity, poisson's ratio and weight per unit of volume of Bayburt Stone which is used in the mosque are determined by the experiment. Also, the properties of the ground on which the building was built are determined. As earthquake records which recorded on similar grounds, components of DZC180 and DZC270 of 17 August 1999 Kocaeli earthquake, components BOL000 and BOL090 of 12 November 1999 Düzce earthquake and components of ERZE-EW and ERZE-NS of 13 March 1999 Erzincan earthquake are used. In the results of the dynamic analysis made, quantities and locations of the strains that can occur in the historic mosque are determined.