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      • KCI등재

        Beyond Afghanistan NATO's partnership with Central Asia and South Caucasus: A tangled partnership?

        Arif Bağbaşlıoğlu 한양대학교 아태지역연구센터 2014 Journal of Eurasian Studies Vol.5 No.1

        This article examines how the Alliance's partnership policy has changed in Central Asia and South Caucasus since the 1990s and aims to clarify to what extent NATO's new partnership policy can affect its relations with these countries. NATO–Russian relations and the Afghanistan operation are evaluated as the main drivers of this process. The target date of the withdrawal of the ISAF combat mission in December 2014, set at the Lisbon Summit 2010, as well as the shifting of the focus of long-term US foreign policy to the Asia-Pacific region and the US aim of balancing China's influence in this region increase the necessity for the Alliance to redefine its future policy towards Central Asia and South Caucasus. The article claims these developments have caused the need to treat Russia more as a partner than a potential competitor in constituting the policy towards Central Asia and South Caucasus. Furthermore the article claims there is no possibility for new Alliance expansion in this part of the world in the short to medium term.

      • KCI등재

        The effect of mortar type and joint thickness on mechanical properties of conventional masonry walls

        Başak Zengin,Burak Toydemir,Serhan Ulukaya,Didem Oktay,Nabi Yüzer,Ali Kocak 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.67 No.6

        Masonry walls are of a complex (anisotropic) structure in terms of their mechanical properties. The mechanical properties of the walls are affected by the properties of the materials used in wall construction, joint thickness and the type of masonry bond. The carried-out studies, particularly in the seismic zones, have revealed that the most of the conventional masonry walls were constructed without considering any engineering approach. Along with that, large-scale damages were detected on such structural elements after major earthquake(s), and such damages were commonly occurred at the brick-joint interfaces. The aim of this study was to investigate the effect of joint thickness and also type of mortar on the mechanical behavior of the masonry walls. For this aim, the brick masonry walls were constructed through examination of both the literature and the conventional masonry walls. In the construction process, a single-type of brick was combined with two different types of mortar: cement mortar and hydraulic lime mortar. Three different joint thicknesses were used for each mortar type; thus, a total of six masonry walls were constructed in the laboratory. The mechanical properties of brick and mortars, and also of the constructed walls were determined. As a conclusion, it can be stated that the failure mechanism of the brick masonry walls differed due to the mechanical properties of the mortars. The use of bed joint thickness not less than 20 mm is recommended in construction of conventional masonry walls in order to maintain the act of brick in conjunction with mortar under load.

      • Effect of different oils and sugar syrups on the properties of tray kadayif (traditional Turkish dessert)

        Başar Burak,Boz Hüseyin 한국식품연구원 2023 Journal of Ethnic Foods Vol.10 No.13

        The aim of this study was to analyze the effect of different oils and sugar syrups on the sensory and textural properties of traditional Turkish dessert the tray kadayif. The textural parameters of the tray kadayif samples were significantly (P < 0.01) affected by the replacement of sunflower oil and hazelnut oil with butter. The cutting hardness values of the tray kadayif samples increased with the increase in the amount of sunflower oil added to the formulations. The highest hardness values were achieved in formulations without butter in terms of both cutting hardness and fork hardness. The stickiness values reached the highest level in formulations containing 50% sunflower oil, 50% butter and 0% hazelnut oil. When the sugar syrups were compared, the stickiness values of the samples with sucrose syrup were found to be higher than the samples with glucose syrup. As a result of the sensory analysis conducted, though all the formulations were accepted by panelists, the highest score from the panelists was received by the formulations containing 75% butter and 25% oil (sunflower and hazelnut oil). It was also determined that the tray kadayif samples prepared with sucrose syrup had higher scores than the samples prepared with glucose syrup in terms of sensory properties.

      • KCI등재후보

        Retrieval of Displaced Woven EndoBridge Intrasaccular Flow Disruptor Using Solitaire Platinum Revascularization Device

        Bañez Ramon Martin Francisco,Chong Winston 대한신경중재치료의학회 2022 Neurointervention Vol.17 No.2

        The Woven EndoBridge (WEB; MicroVention, Aliso Viejo, CA, USA) intrasaccular flow disruptor is a therapeutic option for wide neck bifurcation intracranial aneurysms that does not require the use of adjunctive techniques such as stents or balloon remodeling. As with other endovascular devices, displacement of the WEB is a recognized complication. Few reports have been published regarding the management of this type of complication. We describe a case of retrieval of a displaced WEB using a Solitaire Platinum revascularization device (Medtronic, Minneapolis, MN, USA). Interventionists should be aware of this option in the management of such a complication.

      • KCI등재

        Physicochemical and Microbiological Characterization of Protected Designation of Origin Ezine Cheese: Assessment of Non-starter Lactic Acid Bacterial Diversity with Antimicrobial Activity

        Baş,ar Uymaz,Nefise Akç,elik,Zerrin Yü,ksel 한국축산식품학회 2019 한국축산식품학회지 Vol.39 No.5

        Ezine cheese is a non-starter and long-ripened cheese produced in the Mount of Ida region of Çanakkale, Turkey, with a protected designation of origin status. Nonstarter lactic acid bacteria (NSLAB) have a substantial effect on the quality and final sensorial characteristics of long-ripened cheeses. The dominance of NSLAB can be attributed to their high tolerance to the hostile environment in cheese during ripening relative to many other microbial groups and to its ability to inhibit undesired microorganisms. These qualities promote the microbiological stability of long-ripened cheeses. In this study, 144 samples were collected from three dairies during the ripening period of Ezine cheese. Physicochemical composition and NSLAB identification analyses were performed using both conventional and molecular methods. According to the results of a 16S rRNA gene sequence analysis, 13 different species belonging to seven genera were identified. Enterococcus faecium (38.42%) and E. faecalis (18.94%) were dominant species during the cheese manufacturing process, surviving 12 months of ripening together with Lactobacillus paracasei (13.68%) and Lb. plantarum (11.05%). The results indicate that NSLAB contributes to the microbiological stability of Ezine cheese over 12 months of ripening. The isolation of NSLAB with antimicrobial activity, potential bacteriocin producers, yielded defined collections of natural NSLAB isolates from Ezine cheese that can be used to generate specific starter cultures for the production of Ezine cheese (PDO).

      • KCI등재

        Optimization of β-Galactosidase Production in Stirred Tank Bioreactor Using Kluyveromyces lactis NRRL Y-8279

        Seval Da?ba?lı,Yekta Goksungur 한국식품과학회 2009 Food Science and Biotechnology Vol.18 No.6

        This paper investigates the production and optimization of β-galactosidase enzyme using synthetic medium by Kluyveromyces lactis NRRL Y-8279 in stirred tank bioreactor. Response surface methodology was used to investigate the effects of fermentation parameters on β-galactosidase enzyme production. Maximum specific enzyme activity of 4,622.7 U/g was obtained at the optimum levels of process variables (aeration rate 2.21 vvm, agitation speed 173.4 rpm, initial sugar concentration 33.8 g/ℓ, incubation time 24.0 hr). The optimum temperature and pH of the β-galactosidase enzyme produced under optimized conditions were 37℃ and pH 7.0, respectively. The enzyme was stable over a pH range of 6.0-7.5 and a temperature range of 25-37℃. The Km and Vmax values for O-nitrophenol-β-D-galactopyranoside (ONPG) were 1.20 mM and 1,000 μ㏖/minㆍ㎎ protein, respectively. The response surface methodology was found to be useful in optimizing and determining the interactions among process variables in β-galactosidase enzyme production. Hence, this study fulfills the lack of using mathematical and statistical techniques in optimizing the β-galactosidase enzyme production in stirred tank bioreactor.

      • Promoting Sport Tourism:A Success Story in Turkey

        Koray Başol,R. Aysen Wolff,Aysa İ,Erdoğan,Emre Tilev 세계문화관광학회 2011 Conference Proceedings Vol.12 No.-

        The purpose of this study is to evaluate sport tourism and how a country develops into a major sport destination. Governments and companies are well aware of future trends in tourism and consequently promote international events with the potential to draw large audience and more famous participants. Arel University allows students in the MBA program to research success stories like Formula 1(auto-sports) in order to develop a positioning and targeting strategy for the developing economy.

      • KCI등재

        Estimating the Optimal Dexketoprofen Pharmaceutical Formulation with Machine Learning Methods and Statistical Approaches

        Atakan Başkor,Yağmur Pirinçci Tok,Burcu Mesut,Yıldız Özsoy,Tamer Uçar 대한의료정보학회 2021 Healthcare Informatics Research Vol.27 No.4

        Objectives: Orally disintegrating tablets (ODTs) can be utilized without any drinking water; this feature makes ODTs easy touse and suitable for specific groups of patients. Oral administration of drugs is the most commonly used route, and tabletsconstitute the most preferable pharmaceutical dosage form. However, the preparation of ODTs is costly and requires longtrials, which creates obstacles for dosage trials. The aim of this study was to identify the most appropriate formulation usingmachine learning (ML) models of ODT dexketoprofen formulations, with the goal of providing a cost-effective and timereducingsolution. Methods: This research utilized nonlinear regression models, including the k-nearest neighborhood (k-NN), support vector regression (SVR), classification and regression tree (CART), bootstrap aggregating (bagging), randomforest (RF), gradient boosting machine (GBM), and extreme gradient boosting (XGBoost) methods, as well as the t-test, topredict the quantity of various components in the dexketoprofen formulation within fixed criteria. Results: All the modelswere developed with Python libraries. The performance of the ML models was evaluated with R2 values and the root meansquare error. Hardness values of 0.99 and 2.88, friability values of 0.92 and 0.02, and disintegration time values of 0.97 and10.09 using the GBM algorithm gave the best results. Conclusions: In this study, we developed a computational approach toestimate the optimal pharmaceutical formulation of dexketoprofen. The results were evaluated by an expert, and it was foundthat they complied with Food and Drug Administration criteria.

      • DETERMINATION OF THE REMAINING METHANE POTENTIAL OF LANDFILLED WASTES

        ( Adem Baştürk ),( Ahmet Demir ),( M. Siuan Bilgili ),( Bestamin Özkaya ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1

        In this study, a comparison of methane (CH₄) generation rates for two test cells, one operated with (enhanced) and one without leachate recirculation at Odayeri Sanitary Landfill was performed by biological methane potential (BMP) test. Initial methane potential was approximately 34,5㎥ CH₄/wet ton. The remaining methane potential for the control cell (H1) and the enhanced cell (H2) is determined to be 32,6 ㎥ CH₄/wet ton and 31,1 ㎥CH₄/wet ton of refuse after 8 months of operation. Thus, H2 test cell shows more decomposition relative to the H1 test cell.

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