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Hydrogen Storage Via Physisorption: The Combined Role Of Adsorption Enthalpy And Entropy, Carlos Otero Arean, Barbara Bonelli, Montserrat Rodriguez Delgado, Edoardo Garrone
Hydrogen Storage Via Physisorption: The Combined Role Of Adsorption Enthalpy And Entropy, Carlos Otero Arean, Barbara Bonelli, Montserrat Rodriguez Delgado, Edoardo Garrone
Turkish Journal of Chemistry
Materials capable of cost-effective on-board hydrogen storage and delivery are currently being sought worldwide as a means to facilitate a hydrogen-based energy transition in the transportation sector. Among the solutions proposed, hydrogen storage by physisorption on porous solids constitutes a main avenue of research, and for intelligent design of such materials a detailed knowledge of gas adsorption thermodynamics is of the utmost importance. Analysis of the available data for hydrogen adsorption on alkali and alkaline-earth cation exchanged zeolites clearly shows that standard adsorption enthalpy (\Delta H^0) and entropy (\Delta S^0) are correlated, in the sense that larger \Delta S^0 values …
Synthesis And Physical Studies Of Polycarbonate Of P-Tert-}Butylcalix[4]Arene: A Highly Selective Receptor For Na^+, Muhammad Ashram, Nawash Al Ghezawi, Ibrahim Abu Awaad, Gülsen Asman
Synthesis And Physical Studies Of Polycarbonate Of P-Tert-}Butylcalix[4]Arene: A Highly Selective Receptor For Na^+, Muhammad Ashram, Nawash Al Ghezawi, Ibrahim Abu Awaad, Gülsen Asman
Turkish Journal of Chemistry
The synthesis and characterization of a polycarbonate of p-tert-butylcalix[4]arene 4 are reported. It was synthesized by condensation of p-tert-butylcalix[4]arenetetraol derivative 3 with ethyl chloroformate. This new polymer possesses a hydrolyzable backbone and tunable hydrophobic/hydrophilic properties. The experimental results indicate that the polycarbonate was successfully synthesized with average molecular weight \overline{M}_{w}, (2.328 \times 10^4 g/mol), which was determined by static light scattering method using a Berry plot. The structure of this polymer was determined by IR spectroscopy. The thermal properties were investigated using differential scanning calorimetry (DSC). The degree of crystallinity was measured by means of XRD. The extraction ability of …
Electrochemical And Optical Properties Of An Azo Dye Based Conducting Copolymer, Ati̇lla Ci̇haner, Fati̇h Algi
Electrochemical And Optical Properties Of An Azo Dye Based Conducting Copolymer, Ati̇lla Ci̇haner, Fati̇h Algi
Turkish Journal of Chemistry
The electrochemical and optical properties of a novel conducting copolymer called poly(2,5'-dimethyl-[4-(2,5-di-thiophen- 2-yl-pyrrol-1-yl)-phenyl]azobenzene-co-(3,4-ethylenedioxythiophene)) (poly(1-co-EDOT)) are reported. Electrochemically synthesized poly(1-co-EDOT) based on the azo dye has a well-defined and reversible redox couple (0.37 V vs. Ag/AgCl) with good cycle stability. The copolymer film exhibits high conductivity (13 S/cm) as well as electrochromic behavior (magenta when neutralized and transmissive sky blue when oxidized). Furthermore, electro-optically active copolymer film has a low band gap of 1.79 eV with a \pi-\pi* transition at 555 nm.
Preparation And Characterization Of Magnetic Chitosan Nanospheres, Doina Hritcu, Marcel I. Popa, Nuculina Popa, Vasile Badescu, Vera Balan
Preparation And Characterization Of Magnetic Chitosan Nanospheres, Doina Hritcu, Marcel I. Popa, Nuculina Popa, Vasile Badescu, Vera Balan
Turkish Journal of Chemistry
A method for the preparation of magnetite/chitosan composite nanoparticles was developed. Colloidal magnetite particles (Fe_3O_4 produced by co-precipitation and stabilized in suspension by adding a non-ionic surfactant (Pluronic F127) were subsequently covered with a layer of chitosan (CS) prepared by ionotropic gelation using sodium tripolyphosphate (STPP) as a crosslinking agent. The products were characterized in terms of the following parameters: size distribution and \zeta-potential (by laser diffraction analysis), surface morphology (TEM), composition (FTIR, elemental analysis), magnetic properties (magnetic susceptibility analysis), and concentration of surface functional groups (potentiometric titration). The synthesis parameters were optimized for obtaining uniformly distributed colloidally stable, biocompatible …
4h-Pyran-4-One Derivatives:; Leading Molecule For Preparation Of Compounds With Antimycobacterial Potential, Demet Us, Ece Gürdal, Barkin Berk, Si̇nem Öktem, Tanil Kocagöz, Berrak Çağlayan, Işil Aksan Kurnaz, Di̇lek Demi̇r Erol
4h-Pyran-4-One Derivatives:; Leading Molecule For Preparation Of Compounds With Antimycobacterial Potential, Demet Us, Ece Gürdal, Barkin Berk, Si̇nem Öktem, Tanil Kocagöz, Berrak Çağlayan, Işil Aksan Kurnaz, Di̇lek Demi̇r Erol
Turkish Journal of Chemistry
A series of 3-hydroxy-6-methyl-2-((4-substitutedpiperazin-1- yl)methyl)-4H-pyran-4-one structured compounds were synthesized by reacting 5-hydroxy-2-methyl-4H-pyran-4-one with suitable piperazine derivatives using Mannich reaction conditions. Antibacterial activities of the compounds for E. coli, S. paratyphi, S. flexneri, E. gergoviae, and M. smegmatis were assessed in vitro by using broth dilution for determination of the minimum inhibitory concentration (MIC). In addition, their inhibitory effects over DNA gyrase enzyme were evaluated using a DNA gyrase supercoiling assay. Among the synthesized compounds; compound 7 showed a 4 \mu g/mL MIC value for M. smegmatis, whereas the other compounds demonstrated moderate to high activity. Those tested in the supercoiling …
Partial Regeneration Of Ni-Based Catalysts For Hydrogen Production Via Methane Cracking Part Ii: Modeling And Optimization, Reyyan Koç, Erdoğan Alper, Eric Croiset, Ali Elkamel
Partial Regeneration Of Ni-Based Catalysts For Hydrogen Production Via Methane Cracking Part Ii: Modeling And Optimization, Reyyan Koç, Erdoğan Alper, Eric Croiset, Ali Elkamel
Turkish Journal of Chemistry
High purity, carbon monoxide-free hydrogen and filamentous carbon can be produced by thermo-catalytic cracking of methane. Carbon filaments continue to grow until the catalyst deactivates because of carbon encapsulation. Regeneration of catalyst is important to maintain a continuous process. Our work on optimization of the partial regeneration method showed that activity of the catalyst can be sustained for longer times by gasifying not all but some extent of the deposited carbon. In the previous work, a kinetic model was developed to be able to understand the reaction mechanism of deactivation of fresh catalyst at the molecular level. The objective of …
Pore Structure And Surface Acidity Evaluation Of Fe-Pilcs, Suna Balci, Eli̇f Gökçay
Pore Structure And Surface Acidity Evaluation Of Fe-Pilcs, Suna Balci, Eli̇f Gökçay
Turkish Journal of Chemistry
Fe-PILCs via different conditions using smectites from Hancili (Turkey) and Wyoming (USA) were synthesised. Presaturation had little effects on the basal spacing values while it had important effects on thermal stabilities of the products. Products having basal spacing (d_{001}) around 1.30 nm and surface area up to 160 m^2 g^{-1} were obtained. The thermal behaviour, X-ray diffraction (XRD) patterns, and nitrogen adsorption/desorption experiments confirmed that thermally stable and micro-mesoporous products were obtained although at elevated calcination temperature. Delaminated sample with basal spacing value of 2.79 nm was obtained. Surface acidity of clay was enhanced by pillaring. Chemically sorbed pyridine Fourier …
Synthesis And Single Crystal Structure Analysis Of Three Novel Benzoylthiourea Derivatives, Gülten Kavak, Süheyla Özbey, Gün Bi̇nzet, Nevzat Külcü
Synthesis And Single Crystal Structure Analysis Of Three Novel Benzoylthiourea Derivatives, Gülten Kavak, Süheyla Özbey, Gün Bi̇nzet, Nevzat Külcü
Turkish Journal of Chemistry
N,N-dimethyl-N' -(2-methylbenzoyl)thiourea, C_{11}H_{14}N_2SO (HL^1), N,N-dibutyl-N' -(2-methylben\-zoyl)thiourea, C{17}H{26}N2SO (HL^2), and N,N-dihexyl-N' -(2-methylbenzoyl) thiourea, C{21}H{34}N2SO (HL^3) were synthesized and characterized by elemental analysis, spectroscopic methods (FT-IR, NMR), and single crystal X-ray diffraction. Compound HL^1 crystallizes in the monoclinic system, space group P21/c, Z = 4. Compound HL^3 also crystallizes in the monoclinic system, space group P21/n, Z = 8 with 2 independent molecules in the asymmetric unit. Compound HL^2 crystallizes in the orthorhombic system, space group Pcnn, Z = 8. In all compounds, molecules form dimers through the strong intermolecular N-H...S hydrogen bonds. Moreover, there are different types of intra- and inter-molecular …
Tau Sleptons And Tau Sneutrino Decays In Mssm Under The Cosmological Bounds, Levent Selbuz, Z. Zekeri̇ya Aydin
Tau Sleptons And Tau Sneutrino Decays In Mssm Under The Cosmological Bounds, Levent Selbuz, Z. Zekeri̇ya Aydin
Turkish Journal of Physics
We present a numerical investigation of the fermionic two-body decays of tau sleptons \tilde \tau_{1,2} and \tau sneutrino in the Minimal Supersymmetric Standard Model with complex parameters. In the analysis we particularly take into account the cosmological bounds imposed by WMAP data. We plot the CP-phase dependences for each fermionic two-body channel of \tilde \tau_{1,2} and \tau sneutrino and speculate about the branching ratios and total (two-body) decay widths. We find that the phase dependences of the decay widths of the third family sleptons are quite significant which can provide viable probes of additional CP sources. We also draw attention …
Alteration Mineralogy And Geochemistry Of The Hydrothermally Altered Rocks Of The Kutlular (Sürmene) Massive Sulfide Deposit, Ne Turkey, Emel Abdi̇oğlu, Mehmet Arslan
Alteration Mineralogy And Geochemistry Of The Hydrothermally Altered Rocks Of The Kutlular (Sürmene) Massive Sulfide Deposit, Ne Turkey, Emel Abdi̇oğlu, Mehmet Arslan
Turkish Journal of Earth Sciences
Volcanogenic massive sulfide deposits accompanying the Upper Cretaceous felsic rocks in the intra-arc rift zone of the Pontide palaeo-arc are common in the NE Turkey. One of them, the Kutlular (Sürmene, Trabzon) deposit, is an abandoned mine within the Upper Cretaceous mafic, felsic volcanics and subvolcanic rocks. Detailed mineralogical and geochemical studies indicate the presence of hydrothermal alteration zones around the Kutlular deposit; these alteration zones are represented by silicification-pyrite-illite zone, illite-silicification zone, illite/smectite-silicification zone, smectite zone accompanying kaolinite and halloysite in the dacitic pyroclastics, and additionally chlorite zone in the mafic volcanics. Lithogeochemical data indicate that the footwall dacitic …
Lead And Sulfur Isotope Studies Of The Koru (Çanakkale, Turkey) Lead-Zinc Deposits, Gülcan Bozkaya, Ahmet Gökçe
Lead And Sulfur Isotope Studies Of The Koru (Çanakkale, Turkey) Lead-Zinc Deposits, Gülcan Bozkaya, Ahmet Gökçe
Turkish Journal of Earth Sciences
Koru (Çanakkale) barite-bearing lead-zinc deposits are typical examples of the lead-zinc deposits occurring in the Tertiary volcanic rocks which crop out in the Biga Peninsula. Volcanic rocks around the investigated deposits are distinguished as Eocene Akçaalan andesite, Oligocene Adadağı pyroclastics, Miocene Dededağ dacite and Plio-Quaternary Karaömerler basalt. The investigated deposits are hosted by Adadağı pyroclastics and show two different mineralization styles such as stockwork ore veinlets in the upper parts and ore veins along the fault zones in WNW-ESE direction, in the lower parts. Sphalerite, galena, pyrite, chalcopyrite, quartz, barite and calcite are the main minerals and they are accompanied …
^{207}Pb-^{206}Pb, ^{40}Ar-^{39}Ar And Apatite Fission-Track Geothermochronology Revealing The Emplacement, Cooling And Exhumation History Of The Karaçayır Syenite (N Sivas), East-Central Anatolia, Turkey, Durmuş Boztuğ, Esra Türksever, Matt Heizler, Raymond J. Jonckheer, Marion Tichomirowa
^{207}Pb-^{206}Pb, ^{40}Ar-^{39}Ar And Apatite Fission-Track Geothermochronology Revealing The Emplacement, Cooling And Exhumation History Of The Karaçayır Syenite (N Sivas), East-Central Anatolia, Turkey, Durmuş Boztuğ, Esra Türksever, Matt Heizler, Raymond J. Jonckheer, Marion Tichomirowa
Turkish Journal of Earth Sciences
The Karaçayır syenite, intruding the Palaeozoic crustal metamorphics and unconformably overlain by Upper Paleocene to Eocene Tokuş formation in the north of Sivas (east-central Anatolia), has been studied with respect to ^{207}Pb-^{206}Pb single zircon evaporation, biotite ^{40}Ar-^{39}Ar, and apatite fission-track geothermochronology. ^{207}Pb-^{206}Pb single zircon evaporation dating yields an age of 99.0±11.0 Ma (Cenomanian-Turonian) which is considered to be the intrusion age. Biotite ^{40}Ar-^{39}Ar age determination gives a cooling age of ca. 65 Ma. Apatite fission-track dating, combined with T-t modeling based on track-length distribution data, determines a fast tectonic exhumation with an uplift rate of > 1 mm/a which occurred 58-61 …
Mineral Chemistry And Petrochemistry Of Post-Collisional Tertiary Mafic To Felsic Cogenetic Volcanics In The Ulubey (Ordu) Area, Eastern Pontides, Ne Turkey, İrfan Temi̇zel, Mehmet Arslan
Mineral Chemistry And Petrochemistry Of Post-Collisional Tertiary Mafic To Felsic Cogenetic Volcanics In The Ulubey (Ordu) Area, Eastern Pontides, Ne Turkey, İrfan Temi̇zel, Mehmet Arslan
Turkish Journal of Earth Sciences
Post-collisional Tertiary volcanic rocks in the Ulubey (Ordu) area at the western edge of the eastern Pontides palaeo-arc are divided into four suites. The Yenisayaca basalt (TB) contains plagioclase (An_{61-83}), clinopyroxene (Wo_{42-44}En_{39-41}Fs_{15-18}) and olivine phenocrysts and titanomagnetite microphenocrysts, whereas the Çatal Tepe and Elekçioğlu Tepe suite (ÇES), Işık Tepe suite (ITS) and andesite/ trachyandesite suite (ATS) rocks include plagioclase (An_{23-78}), clinopyroxene (Wo_{27-48}En_{37-55}Fs_{11-26}), hornblende (Mg#= 0.63-0.76), biotite (Mg#= 0.63-0.82), sanidine phenocrysts and titanomagnetite and apatite microphenocrysts. Petrochemically, the volcanic rocks show tholeiitic-alkaline to the calc-alkaline affinities, and have medium to high-K contents. Most samples have low Mg#, Cr, and Ni, which …
Geochemical Characteristics Of Mafic And Intermediate Volcanic Rocks From The Hasandağ And Erciyes Volcanoes (Central Anatolia, Turkey), Aykut Güçteki̇n, Nezi̇hi̇ Köprübaşi
Geochemical Characteristics Of Mafic And Intermediate Volcanic Rocks From The Hasandağ And Erciyes Volcanoes (Central Anatolia, Turkey), Aykut Güçteki̇n, Nezi̇hi̇ Köprübaşi
Turkish Journal of Earth Sciences
Hasandağ and Erciyes stratovolcanoes, which are the two important stratovolcanoes in Central Anatolia, erupted volcanic products with both calc-alkaline and alkaline compositions, although the calc-alkaline activity is more widespread. There are three stages of geochemical evolution in the history of the Hasandağ stratovolcanic complex: (1) Keçikalesi tholeiitic volcanism, (2) Hasandağ calc-alkaline volcanism, and (3) Hasandağ alkaline volcanism. The geochemical evolution of Erciyes volcanic complex also exhibits three distinct evolutionary stages: (1) Koçdağ alkaline volcanism, (2) Koçdağ calc-alkaline volcanism and (3) Erciyes calc-alkaline volcanism. The volcanic rocks from both suites show enrichments in LREE relative to HREE. The rocks as a …
Compositional Variations, Zoning Types And Petrogenetic Implications Of Low-Pressure Clinopyroxenes In The Neogene Alkaline Volcanic Rocks Of Northeastern Turkey, Faruk Aydi̇n, Orhan Karsli, M. Burhan Sadiklar
Compositional Variations, Zoning Types And Petrogenetic Implications Of Low-Pressure Clinopyroxenes In The Neogene Alkaline Volcanic Rocks Of Northeastern Turkey, Faruk Aydi̇n, Orhan Karsli, M. Burhan Sadiklar
Turkish Journal of Earth Sciences
Clinopyroxene phenocrysts and microphenocrysts in different series of the Neogene alkaline volcanic rocks from the eastern Pontides (NE Turkey) record various stages in the crystallization conditions and evolution history of the alkaline melt as well as its origin. Crystal chemical studies reveal that the clinopyroxenes in each rock series show strong textural and compositional similarities, which all reflect a common petrogenetic affinity. They have relatively high Mg-numbers (0.68-0.95), variable Al_2O_3 (1.3-9.6 wt%), low TiO_2 (
The Relationship Between The Tectonic Setting Of The Lake İznik Basin And The Middle Strand Of The North Anatolian Fault, Kurultay Öztürk, Cenk Yaltirak, Bedri̇ Alpar
The Relationship Between The Tectonic Setting Of The Lake İznik Basin And The Middle Strand Of The North Anatolian Fault, Kurultay Öztürk, Cenk Yaltirak, Bedri̇ Alpar
Turkish Journal of Earth Sciences
The İznik Basin is an active depression created by a series of faults developed in relation to the Middle Strand of the North Anatolian Fault (NAFMS). The most important of these faults is the oblique Sölöz fault, which runs parallel to the NAFMS. It is interpreted as a releasing bend, and plays a crucial role in the evolution of the 75-m-deep ellipsoid-shaped depression in the southern part of the lake. The faults that limit the coastal alluvial plain on land, some of which developed during the early evolution of the NAFMS, are equally important in the development of the İznik …
Two-And-Three-Dimensional Crustal Thickness Of The Eastern Pontides (Ne Turkey), Nafiz Maden, Kenan Geli̇şli̇, Yener Eyüboğlu, Osman Bektaş
Two-And-Three-Dimensional Crustal Thickness Of The Eastern Pontides (Ne Turkey), Nafiz Maden, Kenan Geli̇şli̇, Yener Eyüboğlu, Osman Bektaş
Turkish Journal of Earth Sciences
The Eastern Pontide orogenic belt is divided into three subzones (northern, southern and axial zones) based on present lithologies and facies associations. NE-SW-, NW-SE- and E-W-trending fault systems, which play an important role in palaeotectonics and neotectonics of the Eastern Pontides, separate these zones. Three different methods were used to estimate the Moho depth from observed gravity value, namely (i) empirical relationship between Moho depth and Bouguer anomaly; (ii) spectral analysis of the radial wave number and; (iii) by the gravity inversion method. Power spectrum, a statistical approach, is a widely used technique to determine the depth of geological sources …
Ophiolite-Hosted Copper And Gold Deposits Of Southeastern Turkey: Formation And Relationship With Seafloor Hydrothermal Processes, Ömer Tezcan Akinci
Ophiolite-Hosted Copper And Gold Deposits Of Southeastern Turkey: Formation And Relationship With Seafloor Hydrothermal Processes, Ömer Tezcan Akinci
Turkish Journal of Earth Sciences
The paper documents evidence about the physical and chemical controls on the behaviour of Au and Cu sulphide deposits in fossil seafloor hydrothermal systems of SE Turkey. Observations from actively forming sulphides at mid-ocean ridges (MOR) and in back-arc environments are compared briefly with ancient analogues of gold and pyritic copper deposits such as Kisecik, Ergani and Siirt-Madenköy, formed at mid-oceanic ridges, or possibly at seamounts and back-arc settings. Many ophiolite-hosted Au- and Cu-deposits, of various sizes, are known to exist along the Bitlis-Zagros Suture Zone (BZS), the boundary between Anatolian and Arabian plates in SE Turkey. These deposits are …
Contemporaneous Late Cretaceous Calc-Alkaline And Alkaline Magmatism In Central Anatolia, Turkey: O Isotope Constraints On Petrogenesis, Nurdane İlbeyli̇, Julian A. Pearce, Ian G. Meighan, Anthony E. Fallick
Contemporaneous Late Cretaceous Calc-Alkaline And Alkaline Magmatism In Central Anatolia, Turkey: O Isotope Constraints On Petrogenesis, Nurdane İlbeyli̇, Julian A. Pearce, Ian G. Meighan, Anthony E. Fallick
Turkish Journal of Earth Sciences
A wide variety of rock types were produced by the latest Cretaceous magmatism in the Central Anatolian Crystalline Complex. These rocks can be divided into three distinct units: (i) calc-alkaline, (ii) subalkaline/transitional, and (iii) alkaline. The calc-alkaline rocks are mainly metaluminous (I-type) ranging from monzodiorite to granite. The subalkaline/transitional rocks are also metaluminous (I-type) ranging from monzonite to granite. The alkaline rocks are mainly peralkaline (A-type), ranging from feldspathoid-bearing monzosyenite to granite. Whole-rock oxygen isotope data from the complex have a considerable range of \delta18O values between 6.5 per thousand and 14.8 per thousand. Initial 87Sr/86Sr versus 143Nd/144Nd ratios, and …
U-Pb Zircon Shrimp Ages, Geochemical And Sr-Nd Isotopic Compositions Of The Early Cretaceous I-Type Sarıosman Pluton, Eastern Pontides, Ne Turkey, Abdullah Kaygusuz, Bin Chen, Zafer Aslan, Wolfgang Siebel, Cüneyt Şen
U-Pb Zircon Shrimp Ages, Geochemical And Sr-Nd Isotopic Compositions Of The Early Cretaceous I-Type Sarıosman Pluton, Eastern Pontides, Ne Turkey, Abdullah Kaygusuz, Bin Chen, Zafer Aslan, Wolfgang Siebel, Cüneyt Şen
Turkish Journal of Earth Sciences
The petrogenesis and U-Pb SHRIMP zircon ages of the Late Cretaceous Sarıosman pluton in the Eastern Pontides is investigated by means of whole-rock Sr-Nd isotope data with field, petrographic and whole-rock geochemical studies. The bulk of the I-type Sarıosman pluton consists of biotite-hornblende monzogranite, with minor quantities of porphyritic hornblende-biotite monzogranite. The biotite-hornblende monzogranite contains a number of mafic microgranular enclaves (MMEs) of quartz monzodiorite composition. U-Pb zircon sensitive high-resolution ion microprobe dating (SHRIMP) dates the magma emplacement age of the biotite-hornblende monzogranite at 82.7±1.5 Ma. The rocks of the pluton show high-K calc-alkaline, metaluminous to slightly peraluminous characteristics, and …
Benthic Faunal Assemblages Of The Holocene Sediments From The Southwest Black Sea Shelf, Demet Ongan, Oya Algan, Sevi̇nç Kapan Yeşi̇lyurt, Ati̇ke Nazi̇k, Mustafa Ergi̇n, Christ Eastoe
Benthic Faunal Assemblages Of The Holocene Sediments From The Southwest Black Sea Shelf, Demet Ongan, Oya Algan, Sevi̇nç Kapan Yeşi̇lyurt, Ati̇ke Nazi̇k, Mustafa Ergi̇n, Christ Eastoe
Turkish Journal of Earth Sciences
Benthic faunal content (benthic foraminifera, mollusca and ostracoda) of sediment cores from the SW Black Sea shelf were examined. Based on the vertical distribution of abundance and diversity of the benthic fauna, three benthic assemblages were distinguished. These assemblages are BF1, BF2 and BF3, and reflect the changes in bottom water from the termination of the Neoeuxinian period to present. BF1 displays high abundance and diversity in the surroundings of the Bosporus channel, diminishing in the shelf sediments further away from the channel. In the Mid-Shelf and Outer Shelf, it displays low abundance and low diversity. BF1 which started to …
Empirical Attenuation Relationships For Western Anatolia, Turkey, Ni̇hal Akyol, Özlem Karagöz
Empirical Attenuation Relationships For Western Anatolia, Turkey, Ni̇hal Akyol, Özlem Karagöz
Turkish Journal of Earth Sciences
Seismic hazard studies have become progressively more important for earthquake engineering applications in western Anatolia, which contains one of the world’s best examples of a rapidly extending intra-continental tectonic regime. A two-stage regression analysis was applied to peak ground acceleration and 5%-damped spectral acceleration values of 168 recordings from 49 earthquakes in order to develop empirical attenuation relationships which can be used to predict ground motion for western Anatolia. Moment magnitudes for earthquakes range between 4.0 and 6.4 while the hypocentral distances range between 15 and 200 km in our dataset. Site classifications, as one of the predictor variables for …
The Effect Of Garlic (Allium Sativum L.) On Some Quality Properties And Shelf-Life Of Set And Stirred Yoghurt, Engi̇n Gündoğdu, Songül Çakmakçi, Eli̇f Dağdemi̇r
The Effect Of Garlic (Allium Sativum L.) On Some Quality Properties And Shelf-Life Of Set And Stirred Yoghurt, Engi̇n Gündoğdu, Songül Çakmakçi, Eli̇f Dağdemi̇r
Turkish Journal of Veterinary & Animal Sciences
This study was conducted to determine some properties of set and stirred type yoghurts containing 0.5% and 1% garlic (Allium sativum L.) during storage period of 28 days at 4±1 °C. Some microbiological, physical, chemical, and sensory properties of yoghurts were determined in days 1, 7, 14, 21, and 28 of the storage period. Coliform bacteria were not detected in all samples during the storage period ( 0.05) and sensory scores of yoghurts decreased during the storage period. It was also shown that the control group could be safely consumed up to day 7 of storage while garlic groups could …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Single Strand Conformation Polymorphism In Intron I Of The Chicken Apovldl-Ii Gene, And Its Relationship With Triglyceride And Very Low Density Lipoprotein Concentrations, Hassan Hussein Musa, Guo H. Chen, Jin H. Cheng, Wen B. Bao, Adam H. Suleiman
Single Strand Conformation Polymorphism In Intron I Of The Chicken Apovldl-Ii Gene, And Its Relationship With Triglyceride And Very Low Density Lipoprotein Concentrations, Hassan Hussein Musa, Guo H. Chen, Jin H. Cheng, Wen B. Bao, Adam H. Suleiman
Turkish Journal of Veterinary & Animal Sciences
Genetically fat and lean chickens reared identically in the same environment were used to investigate the effect of the apoVLDL-II gene (intron I) on total cholesterol, triglyceride, and lipoprotein concentrations. The overall allele frequency in the 2 populations was 0.59 for allele A and 0.41 for allele B. The allele frequency in the Rugao breed was 0.52 for allele A and 0.48 for allele B; however, in the Anka breed it was 0.65 for allele A and 0.35 for allele B. The apoVLDL-II genotype in the genetically fat Anka breed was associated with a significant increase in serum triacylglyceride concentration …