Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleYalnız künye2014Scopus SJRQ2
    A large and rapid planar failure: Causes, mechanism, and consequences (Mordut, Gumushane, Turkey)

    Alemdag, S.; Akgun, A.; Kaya, A.; Gokceoglu, C.

    Gumushane is a small city located on highway connecting the harbour city Trabzon in the Black Sea Region of Turkey to the Eastern Anatolia. Following an excavation to create an area for housing on the northeast side of this highway, a large and rapid planar failure inclined to the southwest occurred. A large amount of fractured and weathered granitic material moved downward over this planar failure. After the failure, the highway was closed to traffic for 1 week, and more than ten houses on top of this failure were collapsed completely. The present study aims to investigate the mechanism of this failure. The study was performed using kinematical, limit equilibrium and numerical analyses for both post- and pre-failure conditions. Based on the detailed field observations, the failure mode was determined to be planar, and the slide mechanism was determined to be controlled by three fault planes. As a result of these analyses, it can be concluded that the slope before failure had critical conditions and that the excavation and uncontrolled blasting triggered and accelerated the slope failure.

    • SDG 11 · Sürdürülebilir Şehirler ve Topluluklar
    AtıfScopus45WoS42OpenAlex56
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2014Scopus SJRQ2
    A study on the determination of the morphological, Yield and quality characteristics of some sainfoin species (Onobrychis spp.) native to East Anatolia

    Okcu, Melih; Şengül, Süleyman

    Objective of the present study is to identify the species belonging to the genus Onobrychis (Fabaceae) growing native in and around Erzurum, and to determine their overall prevalence and morphological and quality characteristics. Species samples were collected from different locations in flowering periods of 2007, 2008 and 2009. At the end of the study, totally 10 genotypes were found representing 8 species and 2 sub-species. It was found that leaf length and leaflet frequency were the largest in O. atropatana var. grandiflora, the number of leaflets was the highest in O. viciifolia, the length and width of leaflets were maximum in O. radiata, the number of main branches and the number of fascicles in main branches were in O. hajastana, crude ash rate was highest in O. stenostachya, plant fresh and dry weight, ADF and NDF rate were highest in O. cornuta, where as crude protein rate was slightly higher in O. stenostachya subsp. sosnowskyi than other taxa.

    AtıfScopus2WoS3
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2014Scopus SJRQ3
    Investigation of the possible use of black cumin (Nigella sativa L.) essential oil on butter stability; [Tereyaǧi{dotless} stabilitesi üzerine çörekotu (Nigella sativa L.) uçucu yaǧi{dotless} kullani{dotless}labilirliǧinin araşti{dotless}ri{dotless}lmasi{dotless}]

    Çakmakçi, Songül; Gündoǧdu, Engin; Daǧdemir, Elif; Erdoǧan, Ümmügülsüm

    The aim of this study was to investigate the effect of black cumin (Nigella sativa L.) essential oil on butter stability. For this aim, 0.05, 0.1 and 0.2 wt-% essential oil was added to the butter. Antioxidant activity of the essential oil was compared to that of synthetic antioxidant BHT (100 ppm). All samples were stored at 4±1°C for 90 days. Thiobarbituric acid and peroxide values of all samples containing essential oil were decreased depending on concentrations. The amount of 0.2% of essential oil had showed strong antioxidant activity, which was almost equal to that of BHT. The addition of essential oil reduced total aerobic mesophilic bacteria, lactic acid bacteria and coliform bacteria count during storage period but did not show remarkable antifungal activity. Samples containing essential oil were preferred by the panellists compared to Control sample. Present results indicate that black cumin essential oil may be considered as a new source of natural antioxidant.

    • SDG 2 · Açlığa Son
    AtıfScopus20WoS15OpenAlex6
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2014Scopus SJRQ1
    The comparison of different mathematical methods to determine the BOD parameters, a new developed method and impacts of these parameters variations on the design of WWTPs

    Sibil, Rahim; Berkun, Mehmet; Bekiroglu, Serkan

    One of the most common tests for the determination of strength and organic content of wastewater is the biochemical oxygen demand (BOD). This test is widely applied to define organic water pollution and to control the performance of wastewater treatment plants. Generally, BOD is standardized by the measurement of oxygen consumption in 5days (BOD5). But, determination of the ultimate biochemical oxygen demand (BODu), which is taken 28days and the reaction rate constant (k) are necessary to understand the organic strength of the wastewater. In this study, the different mathematical methods in order to determine the BOD parameters (BODu, k) and two different BOD test method (respirometer and dilution method) are investigated comparatively. Also, a new method based on cubic spline method to estimate ultimate BOD values is developed. Moreover, the impacts of BOD parameters on the design of an activated sludge and aerated lagoon systems are analyzed by using a written user-friend program, which is developed for designing WWTPs by the mean of C++ programming language.Analytical results show that there is a satisfactory linear relationship between respirometric and dilution BOD values. Also, the mathematical methods, including new developed method generally provide consistent results with high correlation coefficients. On the other hand, it is found that LOG differences method for respirometric test and the new developed method for dilution test do not give good correlation coefficients. Moreover, activated sludge and aerated lagoons systems' sizes show significant changing depending on the variations of the BOD parameters. Consequently, BOD parameters show significant changes depending on the different test and mathematical methods. Therefore, the changing of these parameters impact a lot of situation such as ultimate BOD estimation, the wastewater treatment plants design, the dimensions of the plants and cost of the plants.

    • SDG 6 · Temiz Su ve Sanitasyon
    AtıfScopus20WoS15OpenAlex24
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2014Scopus SJRQ2
    Hybrid performance and heterosis in F1 offspring of triticale (× Triticosecale Wittm.)

    Yildirim, Mustafa; Gezginç, Hasan; Paksoy, Ali Haydar

    In this study, the combined ability effects and heterosis were determined for number of days to anthesis (AT), plant height (PH), fertile tillers plant-1 (FT), spike length (SL), spikelets spike-1 (SS) and grains spike-1 (GS), 1000-kernel weight (TW), and grain yield plant-1 (GY) of 4 triticale genotypes [Karma (G1), Presto (G2), Ayşehanım (G3), and Mehmetbey (G4)] and their 6 F1 offspring. The mean squares of general combining ability (GCA) and specific combining ability (SCA) were statistically significant for all traits. According to the GCA/SCA, additive gene effects were found for all traits. According to the desired values for traits on the basis of GCA and SCA, parents G1 were good general combiners for 3 traits, G3 for 6, and G4 for 6. Crosses G1 × G2 were good specific combiners for 3 traits, G1 × G3 for 3, G1 × G4 for 3, G2 × G3 for 5, G2 × G4 for 6, and G3 × G4 for 4. Heterosis and heterobeltiosis were -16.78% and -25.71% for AT, -1.66% and -11.02% for PH, 34.25% and 9.87% for FT, 14.62% and 11.44% for SL, 8.09% and 3.87% for SS, 4.57% and 0.91% for GS, 9.67% and 6.13% for TW, and 30.36% and 9.11% for GY, respectively. The results revealed that G2 × G3 and G2 × G4 combinations could be recommended for improved yield of triticale.

    • SDG 2 · Açlığa Son
    AtıfScopus6WoS5OpenAlex5TR Dizin1
    ScopusWeb of ScienceTR Dizinİncele
  • BildiriYalnız künye2014
    Inverse Neumann problem for an equation of elliptic type

    Ashyralyyev, Charyyar; Ashyralyev, A; Malkowsky, E

    Inverse problem for an elliptic differential equation with Neumann conditions is considered. Stability and coercive stability estimates for the solution of inverse problem with the overdetermination are obtained. The first and second order of accuracy difference schemes are presented. Stability and coercive stability inequalities for these difference schemes are given. In application, inverse problem for the multidimensional elliptic equation is studied. The first and second order of accuracy difference schemes for the multidimensional inverse problem are presented. Well-posedness of both difference problems are established. The results are supported by a numerical example for the two-dimensional elliptic equation.

    AtıfScopus17WoS14OpenAlex16
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2014Scopus SJRQ1
    Pushover and nonlinear time history analysis evaluation of a RC building collapsed during the Van (Turkey) earthquake on October 23, 2011

    Çavdar, Özlem; Bayraktar, Alemdar

    The nonlinear seismic behavior of a collapsed reinforced concrete (RC) residential building in the city of Van in Turkey is investigated by the static pushover and nonlinear time history analyses. The selected RC structure was designed according to the 1975 version of Turkish Earthquake Code (TEC-1975). The building had experienced heavy damage, and it was demolished in the Van earthquake on October 23, 2011. The 2007 version of Turkish Earthquake Code (TEC-2007) is considered for the assessing seismic performance evaluation of the selected RC building. The RC structure presents collapse performance level under the earthquake loads. Besides, the analytical solutions show that different performance levels for the sections are obtained from the pushover and nonlinear time history methods.

    AtıfScopus30WoS23
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2014Scopus SJRQ3
    Improvement of Coercivity and Curie Temperature of Sintered Nd-Fe-B Permanent Magnets by Addition of Cu and Ni

    Başoğlu, M.; Yanmaz, E.

    Sintered Nd-Fe-B magnets are some of the strongest magnetic materials showing magnetic properties. Blending addition is frequently performed in order to improve the magnetic properties of these materials. In this work, high-melting point Ni and low-melting point Cu were added to Nd15Fe77B8 ingot by blending. As a result of structural analysis, it was observed that 0.2 wt% Cu + Ni addition improved the structure of the material; on the other hand, excessive addition resulted in porosity. It was also observed that 0.2 wt% addition improved the magnetic properties, and Curie temperature increased with increasing addition ratio.

    AtıfScopus1WoS1OpenAlex1
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2014Scopus SJRQ1
    The effects of chemical attacks on physical and mechanical properties of concrete produced under cold weather conditions

    Çullu, Mustafa; Arslan, Metin

    This study investigates the effects of corrosive conditions on the physical and mechanical properties of concrete produced in cold weather. 30% calcium nitrate and 5% hydroxyethylaminemixture (HEA) were used as additives in antifreeze. Within 15 min of placing the prepared concrete samples in molds, the samples were put in a deep freezer. They were exposed to frost at 0 C, -5 C, -10 C, -15 C and -20 C degrees in the deep freezer over two days. The samples were taken out of the freezer and removed from the forms one day later. They were cured in water at room temperature until the 28th day. The samples were then exposed to sulfuric acid of 5% concentration (H2SO4), magnesium sulfate of 7500 mg/L concentration (MgSO4), sodium sulfate of 5% concentration (NaCl), and corrosive cure and water-curing until the 120th day. At the end of the curing period, the permeable pore space volume, water absorption ratio, unit volume weight, capillarity ratio, impermeability, compressive strength, static modulus of elasticity, Poisson's ratio and tensile strength values of the concrete samples were determined. The results showed that the physical and mechanical properties of the concrete were negatively affected by the corrosive conditions.

    AtıfScopus22WoS17OpenAlex25
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2014Scopus SJRQ1
    Characterization of novel VIM carbapenemase, VIM-38, and first detection of GES-5 carbapenem-hydrolyzing β-lactamases in Pseudomonas aeruginosa in Turkey

    Iraz, Meryem; Duzgun, Azer Ozad; Cicek, Aysegul Copur; Bonnin, Remy A.; Ceylan, Aysenur; Saral, Aysegul; Nordmann, Patrice; Sandalli, Cemal

    Pseudomonas aeruginosa isolates were collected form a Turkish hospital. Antimicrobial susceptibility was performed using the Vitek 2 Compact system, and 24 isolates were categorized as multidrug resistant (n = 18), extensively-drug resistant (n = 5), or pan-drug resistant (n = I). PCR and DNA sequence analysis revealed that 1 strain possessed the bla(GES-5) and another carried a novel bla(VIM) variant, named VIM-38. This new gene exhibited 1 amino acid substitution (Ala265Val) in comparison to its closest variant, VIM-5. Both VIM encoding genes were clones and demonstrated similar susceptibility profile when expressed in identical background. The presence of VIM-38 increases the diversity of carbapenemases in Turkey. (C) 2014 Elsevier Inc. All rights reserved.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus27WoS24OpenAlex24
    ScopusWeb of SciencePubMedİncele
  • MakaleAçık Erişim2014Scopus SJRQ3
    Protective effects of growth hormone on bacterial translocation and intestinal damage in rats with partial intestinal obstruction

    Kaymakci, A.; Guven, S.; Ciftci, I; Akillioglu, I; Aktan, M.; Eker, H. H.; Sutcu, A.; Abasiyanik, A.

    Objective: One of the reasons of bacterial translocation (BT) is the complete or partial intestinal obstructions (PIO) of the gastrointestinal system. In this study, we aimed to investigate the effects of recombinant human Growth Hormone (rhGH) on BT in rats with partial intestinal obstruction (PIO). Material and methods: The rats were randomly divided into the 4 groups: Group I: Sham-operated (SO) (n = 12), Group II control PIO (n = 12), Group III: PIO with rhGH treatment for 5 days (n = 12), Group IV: PIO with rhGH treatment 5 days before PIO and 5 days after PIO (a total of 10 days) (n = 12). In the groups III and IV, the effects of 5 and 10 days administered rhGH were examined. Results: The level of serum and of intestinal fluid IgA was significantly higher in the Group IV compared to the Group I, Group II and Group III. In the Group IV, the number of small intestinal goblet and colonic goblet cells, and the lengths of intestinal mucosal villi and crypt depths were statistically significantly higher than in Groups II and III. The rate of bacterial translocation was higher in the Group II: 100 % in MLNs, 41.6 % in blood culture and 50.8 % in the liver cultures, it was significantly higher compared to the other groups (p < 0.01). Conclusions: The study results demonstrated that administration of rhGH to the rats with PIO for at least 10 days decreased bacterial translocation (Fig. 3, Ref. 25). Text in PDF www.elis.sk.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus12WoS10OpenAlex11
    ScopusWeb of SciencePubMedİncele
  • MakaleAçık Erişim2014Scopus SJRQ3
    Molecular Epidemiology, Antimicrobial Resistance and Characterization of Extended-Spectrum Beta-Lactamases of Salmonella enterica Serotype Paratyphi B Clinical Isolates

    Bayramoglu, Gulcin; Özgümüs, Osman Birol; Kolayli, Fetiye; Kamburoglu, Ahu; Besli, Yesim; Dinç, Ugur; Tosun, Ilknur; Aydin, Faruk

    Although Salmonella enterica serotype Paratyphi B is the less frequently isolated serotype worldwide and in Turkey, it is the most common serotype in our hospital, with a marked increase in 2007. The purpose of this study was to investigate the antibiotic susceptibility and the extended spectrum beta-lactamase (ESBL) profile, and molecular epidemiology of S. Paratyphi B isolates detected in our hospital microbiology laboratory. Seventy isolates identified as S. Paratyphi B from 109 Salmonella isolates obtained from clinical specimens from different patients between October 2005 and December 2012, were included in the study. In addition to conventional methods, isolates were identified using the Phoenix automated microbiology system (Becton Dickinson, USA). Serotyping of the isolates was performed on the basis of slide agglutination and the Kauffmann-White scheme. The antibiotic susceptibility of the isolates was determined using the BD Phoenix (TM) automated system and disk diffusion test. ESBL enzymes were investigated using the combined disk test, isoelectric focusing, polymerase chain reaction (PCR) and sequence analysis. The molecular epidemiology of the 51 isolates obtained between October 2005 and August 2008 was examined with pulsed-field gel electrophoresis (PFGE) using the Xbal enzyme. S. Paratyphi B isolates were obtained from 70 specimens (46 blood, 16 fecal, 4 bone marrow, 2 urine and 2 wound) each from different patients. Resistance to nalidixic acid was determined in 18.6%, resistance to ampicillin, cefotaxime and cefepime in 2.9% and to ceftazidime and co-trimoxazole in 1.4% of the isolates. ESBL production was detected only in two isolates; in one TEM-1 was accompanied by CTX-M-15 and in the other isolate CTX-M-3 was found. Forty-six of the 51 isolates (90%) were found to be genetically related by PFGE and were placed in cluster A. The distribution of the isolates in cluster A revealed six subtypes as A1 (n= 7), A2 (n= 11), A3 (n= 7), A4 (n= 18), AS (n= 2) and A6 (n= 1). Three different patterns not related to the cluster A were determined in the remaining five isolates (two were B, one of each was C, D and E). In conclusion, although the rate of antibiotic resistance was low in the S. Paratyphi B isolates in our hospital, rare types of ESBLs such as CTX-M-3 and CTX-M-15 were detected in Salmonellae. As far as the current literature is considered, this is the first report in Turkey of bla(CTX-M-15) in Salmonella spp. and bla(CTX-M-3) genes in S. Paratyphi B. The results may indicate a possible future threat to the treatment of Salmonella infections. Since most of the isolates were genetically related, this might suggest an epidemic in our region.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfWoS2OpenAlex3
    Web of SciencePubMedİncele
  • MakaleAçık Erişim2014Scopus SJRQ1
    Poly(ε-caprolactone) Composite Scaffolds Loaded with Gentamicin-Containing β-Tricalcium Phosphate/Gelatin Microspheres for Bone Tissue Engineering Applications

    Sezer, Umran Aydemir; Arslantunali, Damla; Aksoy, Eda Ayse; Hasirci, Vasif; Hasirci, Nesrin

    In this study, novel poly(epsilon-caprolactone) (PCL) composite scaffolds were prepared for bone tissue engineering applications, where gentamicin-loaded -tricalcium phosphate (-TCP)/gelatin microspheres were added to PCL. The effects of the amount of -TCP/gelatin microspheres added to the PCL scaffold on various properties, such as the gentamicin release rate, biodegradability, morphology, mechanical strength, and pore size distribution, were investigated. A higher amount of filler caused a reduction in the mechanical properties and an increase in the pore size and led to a faster release of gentamicin. Human osteosarcoma cells (Saos-2) were seeded on the prepared composite scaffolds, and the viability of cells having alkaline phosphatase (ALP) activity was observed for all of the scaffolds after 3 weeks of incubation. Cell proliferation and differentiation enhanced the mechanical strength of the scaffolds. Promising results were obtained for the development of bone cells on the prepared biocompatible, biodegradable, and antimicrobial composite scaffolds. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40110.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus25WoS22OpenAlex23
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2014Scopus SJRQ2
    Oxidant-Antioxidant Balance during On-Pump Coronary Artery Bypass Grafting

    Mentese, Umit; Dogan, Orhan Veli; Turan, Ibrahim; Usta, Sefer; Dogan, Emre; Mentese, Seda Oztas; Demir, Selim; Ozer, Tanil; Aykan, Ahmet Cagri; Alver, Ahmet

    Backround. The aim of this study was to evaluate the changes in perioperative oxidant-antioxidant balance in ONCABG. Methods. Twenty-three patients were included in this study. Serum total oxidant status (TOS), total antioxidant status (TAS), and oxidative stress index (OSI) values were assessed preoperatively, at 20 minutes after aortic clamping and at 30 minutes, 6 hours, and 48 hours after declamping (reperfusion). The patients were divided into 2 groups according to the median aortic cross clamping (XC) time: group 1 (XC time < 42 minutes) and group 2 (XC time >= 42 minutes). Results. TOS and OSI values of whole patients at 30 minutes after reperfusion were higher than preoperative values (P = 0.045, P = 0.015), while perioperative TAS levels of the patients were similar to the preoperative levels (P = 0.173). XC time was correlated with TOS levels at 30 minutes after reperfusion (P = 0.43, P = 0.041). In group 2, TOS and OSI values at 30 minutes after reperfusion were higher than preoperative values (P = 0.023, P = 0.048), whereas a significant difference was not found in group 1 (P = 0.601, P = 0.327). Conclusions. Oxidative imbalance and increase in TOS at reperfusion in ONCABG may be associated with XC time.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus21WoS24OpenAlex24
    ScopusWeb of SciencePubMedİncele
  • MakaleAçık Erişim2014Scopus SJRQ1
    Oxidation of cyanobenzocycloheptatrienes: Synthesis, photooxygenation reaction and carbonic anhydrase isoenzymes inhibition properties of some new benzotropone derivatives

    Güney, Murat; Coskun, Ahmet; Topal, Fevzi; Dastan, Arif; Gülçin, Ilhami; Supuran, Claudiu T.

    The oxidation of some cyanocycloheptatrienes with CrO3 and pyridine was investigated and a few new nitrile functionalised benzotropone derivatives were obtained. Photooxygenation reaction of these products was also studied. The structures of the formed products were determined on the basis of NMR spectroscopy and the formation mechanism of unusual products was discussed. Human carbonic anhydrase isoenzymes I, and II (hCA I and hCA II) inhibition properties of nitrile functionalized new benzotropone derivatives were also studied. Both CA isozymes were inhibited in the low micromolar range by these nitrile functionalized benzotropone analogues. The newly synthesized benzotropone derivatives showed inhibition constants in the sub-micromolar range (2.51-4.06 mu M). The best hCA I inhibition was observed in 5H-benzocycloheptene-7-carbonitrile (K-1: 2.88 +/- 0.86 mu M). On the other hand, 5-oxo-5H-benzocycloheptatriene-7-carbonitrile showed the powerful inhibitory effect against hCA II (K-i: 2.51 +/- 0.34 mu M). (C) 2014 Elsevier Ltd. All rights reserved.

    AtıfScopus128WoS132OpenAlex127
    ScopusWeb of SciencePubMedİncele
  • MakaleYalnız künye2014Scopus SJRQ1
    The Eastern Black Sea-type volcanogenic massive sulfide deposits: Geochemistry, zircon U-Pb geochronology and an overview of the geodynamics of ore genesis

    Eyuboglu, Yener; Santosh, M.; Yi, Keewook; Tuysuz, Necati; Korkmaz, Sadettin; Akaryali, Enver; Dudas, Francis O.; Bektas, Osman

    The Meso-Cenozoic geodynamic evolution of the eastern Pontides orogenic belt provides a key to evaluate the volcanogenic massive sulfide (VMS) deposits associated with convergent margin tectonics in a Cordilleran-type orogenic belt. Here we present new geological, geochemical and zircon U-Pb geochronological data, and attempt to characterize the metallogeny through a comprehensive overview of the important VMS mineralizations in the belt. The VMS deposits in the northern part of the eastern Pontides orogenic belt occur in two different stratigraphic horizons consisting mainly of felsic volcanic rocks within the late Cretaceous sequence. SHRIMP zircon U-Pb analyses from ore-bearing dacites yield weighted mean Pb-206/U-238 ages ranging between 91.1 +/- 1.3 and 82.6 +/- 1 Ma. The felsic rocks of first and second horizons reveal geochemical characteristics of subduction-related calc-alkaline and shoshonitic magmas, respectively, in continental arcs and represent the immature and mature stages of a late Cretaceous magmatic arc. The nature of the late Cretaceous magmatism in the northern part of the eastern Pontides orogenic belt and the various lithological associations including volcaniclastics, mudstones and sedimentary facies indicate a rift-related environment where dacitic volcanism was predominant. The eastern Pontides VMS deposits are located within the caldera-like depressions and are closely associated with dome-like structures of felsic magmas, with their distribution controlled by fracture systems. Based on a detailed analyses of the geological, geophysical and geodynamic information, we propose that the VMS deposits were generated either in intra arc or near arc region of the eastern Pontides orogenic belt during the southward subduction of the Tethys oceanic lithosphere. (C) 2013 Elsevier B.V. All rights reserved.

    AtıfScopus90WoS88OpenAlex86
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2013Scopus SJRQ3
    A PRACTICAL APPROACH FOR TREATMENT OF MUNICIPAL WASTEWATER BY ACTIVATED SLUDGE PROCESS

    Nas, S. S.

    This study deals with calculating reactor volumes using a graphical process in treatment of wastewaters by activated sludge process for discharge and carbonaceous biochemical oxygen demand (CBOD), different sludge ages, biomass concentrations, pollution loads and effluent soluble CBOD concentration. CBOD, measurements are carried out by using the standard oxidation (or incubation) test. Ultimate CBOD values are also estimated by the moment ad the least square methods. This study shows that the daily average pollution load of wastewaters is 352.5 kg d(-1) (monthly average discharge 20.4 1 s(-1), influent CBOD concentration 200 mg l(-1), activated sludge pond volume is 203-258 m(3) for different effluent CBOD concentration (50-40-30-20-10 mg l(-1) and biomass concentrations (3-3.5-4-4.5-5 g l(-1)) that are obtained from pollution loads volume charts. Therefore, data collection and the facility sizing are being illustrated by determining both quality quantity profile of a residential (KTU Central Campus) wastewater and the effect of the various parameters to the reactor.

    AtıfWoS1
    Web of Scienceİncele
  • BildiriYalnız künye2013Scopus SJRQ2
    EFFORT DYSPNEA CAUSED BY AN UNUSUAL MEMBRANE LOCALIZED IN THE LEFT VENTRICLE OF THE HEART

    Kutlu, R.; Memetoglu, M. E.; Arik, O. Z.; Karal, H.; Avsar, E.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • MakaleYalnız künye2013
    Social Construction in the Context of Being a Model of Hazrat Prophet in the Verses Descended in Madina

    Deliser, Bilal

    In this study it was processed that the Hazrat Prophet's revelation and the revelation's main principles, how they are set an example in all area of the life by discussing with general classification. Thus, the subject tried to be based in terms of epistemic perspective. This foundation, in the society where Hazrat Prophet lived, without granting to the case with all dimensions, is concrete models crossing the case revealing direction of revelation. These models consisting of believes about conviction, practical, moral, political and social virtues concretized himself in a position without diseppearing in the horizon of humanity. In this sense, the revolution, which Quran fulfilled, can be said that entirely happened through his close relatives. The word of construction which was mentioned in the title of the study was not used in the mean of construction of the absent, but it was used in the mean of developmentand reform, meeting some on ewith his creation in all areas. As method, verses consisting of concrete models were determined in the verses descended in Madina and classificated under some titles. About verses and groups of verses was given information just fore liminating obliqueness, it was not detailed. Int his way, it was searched finding possibilities of an approachto be foundation for interpreting and a rising point. Our study has not an aim of explaining the history of spreading Quran must be taken into consideration.

  • BildiriAçık Erişim2013
    The link between unemployment rate and real output in Eurozone: A panel error correction approach

    Dogru, Bulent; Ozsahin, M

    In this paper we investigate the relationship between economic growth andunemployment in Eurozone through the implementation of Okun's Law using annual panel dataset covering the time period 2000-2012. Panel error correction and panel co-integration methods are used to test the linkage between unemployment and growth rate. We also investigate unemployment hysteresis using several non-stationary panel unit root techniques for unemployment hysteresis in all Euroregions. Findings suggest that Okun's Law is valid but coefficients are less thanOkun's coefficient for USA and other empirical studies on developed countries. Also we find that the relationship between economic growth rate and unemployment rate vary between countries.

    • SDG 8 · İnsana Yakışır İş ve Ekonomik Büyüme
    AtıfWoS12OpenAlex24
    Web of Scienceİncele