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Sample records for kahevistlejate nite phjal

  1. Irradiation effect on Nite-SiC/SiC composites

    International Nuclear Information System (INIS)

    Hinoki, T.; Choi, Y.B.; Kohyama, A.; Ozawa, K.

    2007-01-01

    Full text of publication follows: Silicon carbide (SiC) and SiC composites are significantly attractive materials for nuclear application in particular due to exceptional low radioactivity, excellent high temperature mechanical properties and chemical stability. Despite of the excellent potential of SiC/SiC composites, the prospect of industrialization has not been clear mainly due to the low productivity and the high material cost. Chemical vapor infiltration (CVI) method can produce the excellent SiC/SiC composites with highly crystalline and excellent mechanical properties. It has been reported that the high purity SiC/SiC composites reinforced with highly crystalline fibers and fabricated by CVI method is very stable to neutron irradiation. However the production cost is high and it is difficult to fabricate thick and dense composites by CVI method. The novel processing called Nano-powder Infiltration and Transient Eutectic Phase (NITE) Processing has been developed based on the liquid phase sintering (LPS) process modification. The NITE processing can achieve both the excellent material quality and the low processing cost. The productivity of the processing is also excellent, and various kinds of shape and size of SiC/SiC composites can be produced by the NITE processing. The NITE processing can form highly crystalline matrix, which is requirement for nuclear application. The objective of this work is to understand irradiation effect of the NITESiC/SiC composites. The SiC/SiC composites used were reinforced with high purity SiC fibers, Tyranno TM SA and fabricated by the NITE method. The NITE-SiC/SiC composite bars and reference monolithic SiC bars fabricated by CVI and NITE were irradiated at up to 1.0 dpa and 600-1000 deg. C at JMTR, Japan. Mechanical properties of non-irradiated and irradiated NITESiC/ SiC composites bars were evaluated by tensile tests. Monolithic SiC bars were evaluated by flexural tests. The fracture surface was examined by SEM. Ultimate

  2. Miten tuotteistaa musiikkiäänite nykyistä kannattavammin?

    OpenAIRE

    Suortti, Niko

    2014-01-01

    KYMENLAAKSON AMMATTIKORKEAKOULU Liiketoiminnan logistiikka SUORTTI, NIKO Miten tuotteistaa musiikkiäänite nykyistä kannattavam-min? Opinnäytetyö 50 sivua + 1 liitesivu Työn ohjaaja lehtori Marianne Roslund Toimeksiantaja Spinefarm Records Lokakuu 2014 Avainsanat musiikki, äänite, tuotteistaminen, markkinointi Internet pakotti yleistyessään koko musiikkiteollisuuden tarkastelemaan vallitsevia ra-kenteitaan. Musiikkiäänitteiden myynnin ja markkinoinnin lisäksi myös musii...

  3. Elevated Temperature Properties of Commercially Available NITE-SiC/SiC Composites

    International Nuclear Information System (INIS)

    Choi, Y.B.; Hinoki, T.; Kohyama, A.

    2007-01-01

    Full text of publication follows: Continuous fiber-reinforced ceramic matrix composites (CMCs) have been expected as a new type of material having high fracture resistance up to a high temperature. In recent years, there have been extensive efforts in our research group to develop high performance SiC/SiC composites for energy applications, where improvements in mechanical properties and damage resistance by innovative new fabrication process with emphasis on interface improvement have been greatly accomplished. One of the most outstanding accomplishments is the Nano-powder Infiltration and Transient Eutectic (NITE) process using PyC coated Tyranno-SA fibers. For making SiC/SiC composites more attractive and competitive for high temperature structural components and for other industrial applications, one of the key issues is to demonstrate its reliability and safety under severe environments. Also to demonstrate the potential to produce SiC/SiC by NITE process from large scale production line at industries is very important. This paper provides fundamental database of mechanical properties and microstructure of Cera-NITE, the trade name of NITE-SiC/SiC composites. The mechanical properties were evaluated by uni-axial tensile test from room temperature to high temperatures. The tensile properties, including elastic modulus, PLS and ultimate tensile strength, are superior to those of other conventional SiC/SiC composites. The macroscopic observation of Cera-NITE indicated high density as planned with almost no-porosity and cracks. Furthermore, Cera-NITE showed outstanding microstructural uniformity. The characteristic variation coming from the sampling location was hardly observed.. Further information about database of properties and microstructure at evaluated temperature will be provided. (authors)

  4. Constraint-Based Abstraction of a Model Checker for Infinite State Systems

    DEFF Research Database (Denmark)

    Banda, Gourinath; Gallagher, John Patrick

    Abstract interpretation-based model checking provides an approach to verifying properties of infinite-state systems. In practice, most previous work on abstract model checking is either restricted to verifying universal properties, or develops special techniques for temporal logics such as modal t...... to implementation of abstract model checking algorithms for abstract domains based on constraints, making use of an SMT solver....

  5. Existence of Solution of Neutral Fractional Impulsive Differential Equations with Infinite Delay

    Directory of Open Access Journals (Sweden)

    K.Hilal

    2017-04-01

    Full Text Available In this work we define the solution of the fractional neutral impulsive differential equation with infinite delay. The results of existence are obtained by using the Banach contraction and Schafer fixed point. Some proprieties of probability density functions and semi-group theory are also used.

  6. Optimal design of a beam stop for Indus-2 using finite element heat

    Indian Academy of Sciences (India)

    The radiation source impinges ∼ 1 kW power on the beam stop and the heat transfer capabilities of the beam stop have been evaluated. Temperature distribution in the beam stop has been obtained under various cooling conditions using the finite element analysis calculations with ANSYS software. Design parameters of ...

  7. Microstructural optimization of high temperature SiC/SiC composites by nite process

    International Nuclear Information System (INIS)

    Shimoda, K.; Park, J.S.; Hinoki, T.; Kohyama, A.

    2007-01-01

    Full text of publication follows: SiC/SiC composites are one of the promising structural materials for future fusion reactor because of the excellent potentiality in thermal and mechanical properties under very severe environment including high temperature and high energy neutron bombardment. For fusion-grade SiC/SiC composites, high-crystallinity and near-stoichiometric characteristic are required to keep excellent stability against neutron irradiation. The realization of the reactor will be strongly depend on optimization of SiC/SiC composites microstructure, particularly in regard to the materials and processes used for the fiber, interphase and matrix constituents. One of the important accomplishments is the new process, called nano-particle infiltration and transient eutectic phase (NITE) process developed in our group. The microstructure of NITE-SiC/SiC composites, such as fiber volume fraction, porosity and type of pores, can be controlled precisely by the selection of sintering temperature/applied stress history. The objective of this study is to investigate thermal stability and mechanical properties of NITE-SiC/SiC composites at high-temperature. Two kinds of highly-densified SiC/SiC composites with the difference of fiber volume fraction were prepared, and were subjected to exposure tests from 1000 deg. C to 1500 deg. C in an argon-oxygen gas mixture with an oxygen partial pressure of 0.1 Pa. The thermal stability of the composites was characterized through mass change and TEM/SEM observation. The in-situ tensile tests at 1300 deg. C and 1500 deg. C were carried out in the same atmosphere. Most of SiC/SiC composites, even for the advanced CVI-SiC/SiC composites with multi-layered SiC/C inter-phases, underwent reduction in the maximum strength by about 20% at 1300 deg. C. In particular, this reduction was attributed to a slight burnout of the carbon interphase due to oxygen impurities in test atmosphere. However, there was no significant degradation for

  8. Microstructural optimization of high temperature SiC/SiC composites by nite process

    Energy Technology Data Exchange (ETDEWEB)

    Shimoda, K. [Kyoto Univ., Graduate School of Energy Science (Japan); Park, J.S. [Kyoto Univ., Institute of Advanced Energy (Japan); Hinoki, T.; Kohyama, A. [Kyoto Univ., lnstitute of Advanced Energy, Gokasho, Uji (Japan)

    2007-07-01

    Full text of publication follows: SiC/SiC composites are one of the promising structural materials for future fusion reactor because of the excellent potentiality in thermal and mechanical properties under very severe environment including high temperature and high energy neutron bombardment. For fusion-grade SiC/SiC composites, high-crystallinity and near-stoichiometric characteristic are required to keep excellent stability against neutron irradiation. The realization of the reactor will be strongly depend on optimization of SiC/SiC composites microstructure, particularly in regard to the materials and processes used for the fiber, interphase and matrix constituents. One of the important accomplishments is the new process, called nano-particle infiltration and transient eutectic phase (NITE) process developed in our group. The microstructure of NITE-SiC/SiC composites, such as fiber volume fraction, porosity and type of pores, can be controlled precisely by the selection of sintering temperature/applied stress history. The objective of this study is to investigate thermal stability and mechanical properties of NITE-SiC/SiC composites at high-temperature. Two kinds of highly-densified SiC/SiC composites with the difference of fiber volume fraction were prepared, and were subjected to exposure tests from 1000 deg. C to 1500 deg. C in an argon-oxygen gas mixture with an oxygen partial pressure of 0.1 Pa. The thermal stability of the composites was characterized through mass change and TEM/SEM observation. The in-situ tensile tests at 1300 deg. C and 1500 deg. C were carried out in the same atmosphere. Most of SiC/SiC composites, even for the advanced CVI-SiC/SiC composites with multi-layered SiC/C inter-phases, underwent reduction in the maximum strength by about 20% at 1300 deg. C. In particular, this reduction was attributed to a slight burnout of the carbon interphase due to oxygen impurities in test atmosphere. However, there was no significant degradation for

  9. Redefinition of thalénite-(Y) and discreditation of fluorthalénite-(Y): a re-investigation of type material from the Österby pegmatite, Dalarna, Sweden, and from additional localities

    Czech Academy of Sciences Publication Activity Database

    Škoda, R.; Plášil, Jakub; Jonsson, E.; Čopkajová, R.; Langhof, J.; Vašinová Galiová, M.

    2015-01-01

    Roč. 79, č. 4 (2015), s. 965-983 ISSN 0026-461X R&D Projects: GA ČR GP13-31276P Institutional support: RVO:68378271 Keywords : thalénite-(Y) * fluorthalénite-(Y) * fluorine * electron microprobe analysis * single crystal Xray diffraction * LA- ICP -MS * Y+REE Subject RIV: DB - Geology ; Mineralogy Impact factor: 2.212, year: 2015

  10. X-ray diffraction analysis of stan nite, wurtz-stan nite and pseudo-cubic quaternary compounds by Rietveld method

    Energy Technology Data Exchange (ETDEWEB)

    Quintero, M.; Quintero, E.; Moreno, E.; Alvarez, S.; Rincon, C.; Grima, P.; Bocaranda, P.; Rivero, D. [Universidad de Los Andes, Centro de Estudios de Semiconductores, 5101 Merida (Venezuela, Bolivarian Republic of); Marquina, J. [Universidad de Los Andes, Centro de Estudios Avanzados en Optica, 5101 Merida (Venezuela, Bolivarian Republic of); Henao, J. A.; Macias, M. A., E-mail: mquinterg@gmail.com [Universidad Industrial de Santander, Facultad de Ciencias, Escuela de Quimica, Grupo de Investigacion en Quimica Estructural, Apdo. Aereo 678, Bucaramanga (Colombia)

    2014-07-01

    Room temperature X-ray powder diffraction measurements were carried out on nine polycrystalline samples of the Cu{sub 2}B{sup II}C{sup IV}X{sub 4} (B=Mn, or Fe, or Co; C=Si, or Ge, or Sn; X=S, or Se or Te) magnetic semiconductor compounds. The diffraction patterns were used to show the equilibrium conditions and to derive crystalline parameters values. The results showed that four of these compounds have a tetragonal stan nite structure with space group 142 m(N{sup o} 121), two and orthorhombic wurtz-stan nite structure with space group Pmn2{sub 1}(N{sup o} 31) and three of them and orthorhombic pseudo-cubic structure with space group F222 (N{sup o} 22). In each case, the structure was refined using the Rietveld method. When the obtained atomic parameter values for the tetragonal compounds were plotted as a function of molecular weight W, it was found that the values of the atomic positions, the cation-anion bond distances, tetragonal distortion and internal distortion of the compounds containing S and /or Se lay on different lines. Also, it was found that when the experimental points of the cation-anion bond distances d{sub Cu-VI}, d{sub II-VI} and d{sub IV-VI} were plotted against the effective lattice parameter a{sub c} = (V/N){sup 1/3}, a linear variation of these distances with a{sub c} was obtained. Values of the ionic energy gap C{sub i} and homopolar energy gap E{sub h} using the Phillips-Van Vechten scheme, with the present experimental crystallographic results as well as using the atomic data, were determined. It was found that the observed and predicted values of C{sub i} and E{sub h} lie on the same straight line. (Author)

  11. Microstructure and hydrothermal corrosion behavior of NITE-SiC with various sintering additives in LWR coolant environments

    Energy Technology Data Exchange (ETDEWEB)

    Parish, Chad M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Terrani, Kurt A. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Kim, Young -Jin [GE Global Research Center, Schenectady, NY (United States); Koyanagi, Takaaki [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Katoh, Yutai [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2016-11-28

    Nano-infiltration and transient eutectic phase (NITE) sintering was developed for fabrication of nuclear grade SiC composites. We produced monolithic SiC ceramics using NITE sintering, as candidates for accident-tolerant fuels in light-water reactors (LWRs). In this work, we exposed three different NITE chemistries (yttria-alumina [YA], ceria-zirconia-alumina [CZA], and yttria-zirconia-alumina [YZA]) to autoclave conditions simulating LWR coolant loops. The YZA was most corrosion resistant, followed by CZA, with YA being worst. High-resolution elemental analysis using scanning transmission electron microscopy (STEM) X-ray mapping combined with multivariate statistical analysis (MVSA) datamining helped explain the differences in corrosion. YA-NITE lost all Al from the corroded region and the ytttria reformed into blocky precipitates. The CZA material lost all Al from the corroded area, and the YZA – which suffered the least corrosion –retained some Al in the corroded region. Lastly, the results indicate that the YZA-NITE SiC is most resistant to hydrothermal corrosion in the LWR environment.

  12. Esquisse d'une communication gestuelle yéménite (Taez et Sanaa

    Directory of Open Access Journals (Sweden)

    Vincent Battesti

    2001-09-01

    Full Text Available Cette étude donne un premier aperçu de la richesse des gestuelles yéménites utilisées dans des contextes de communication. Plus de 150 gestes sont classés selon deux modalités d'expression : être en relation avec quelqu'un (Saluer, s'opposer, promettre, etc. et décrire (une personne, un objet, etc..An Outline of Yemeni Gestural Communication (Taez et SanaaThis study is the first survey of the rich Yemeni gestures used as a means of communication. More than 150 gestures are classified as to whether they are used in interaction with someone (greeting, opposing, promising, etc. or to describe someone or something.

  13. Volcanism on Io: The Galileo NIMS Io Thermal Emission Database (NITED)

    Science.gov (United States)

    Davies, A. G.; Veeder, G. J.; Matson, D. L.; Johnson, T. V.

    2011-12-01

    In order to determine the magnitude of thermal emission from Io's volcanoes and variability with time at local, regional and global scales, we have calculated the 4.7 or 5 μm radiant flux for every hot spot in every Galileo Near Infrared Mapping Spectrometer (NIMS) observation obtained during the Galileo mission between June 1996 and October 2001. The resulting database contains over 1000 measurements of radiant flux, corrected for emission angle, range to target, and, where necessary, incident sunlight. Io's volcanoes produce the most voluminous and most powerful eruptions in the Solar System [1] and NIMS was the ideal instrument for measuring thermal emission from these volcanoes (see [1, 2]). NIMS covered the infrared from 0.7 to 5.2 μm, so measurement of hot spot thermal emission at ~5 μm was possible even in daytime observations. As part of a campaign to quantify magnitude and variability of volcanic thermal emission [1, 3-5] we examined the entire NIMS dataset (196 observations). The resulting NIMS Io Thermal Emission Database (NITED) allows the charting of 5-μm thermal emission at individual volcanoes, identifying individual eruption episodes, and enabling the comparison of activity at different hot spots [e.g., 6] and different regions of Io. Some ionian hot spots were detected only once or twice by NIMS (e.g., Ah Peku Patera, seen during I32), but most were detected many times (e.g., Culann, Tupan and Zamama, [6]). For example, the database contains over 40 observations of Loki Patera (some at high emission angle, and two partial observations). There are 55 observations of Pele. The 27 nighttime observations of Pele show a remarkably steady 5-μm radiant flux of 35 ± 12 GW/μm. There are 34 observations of Pillan, which erupted violently in 1997. Although in many observations low spatial resolution makes it difficult to separate hot spot pairs such as Susanoo Patera and Mulungu Patera; Tawhaki Patera and Hi'iaka Patera; and Janus Patera and Kanehekili

  14. In-situ Observation of Fracture Behavior on Nano Structure in NITE SiC/SiC Composite by HVEM

    International Nuclear Information System (INIS)

    Shibayama, Tamaki; Hamada, Kouichi; Watanabe, Seiichi; Matsuo, Genichiro; Kishimoto, Hirotatsu

    2011-01-01

    We have been successfully done in situ observation on the sequence of fracture event at the interface of NITE SiC/SiC composite examined by using miniaturized double notched shear specimen for TEM prepared by Focused Ion Beam method. In this study, we used nano-mechanics TEM experimental apparatus to investigate not only microstructure evolution and but also load and displacement curve at once in High Voltage Electron Microscope. Our results summarize as follows. Cracks were initiated at the interface between carbon coating layer on the SiC fiber and SiC matrices, and propagated along the interface. Load drop in the load and displacement curve during in-situ TEM was clearly observed at the crack initiation. The shear strength by using the miniaturized specimen is about ten times higher than that obtained by the standard testing.

  15. Charting thermal emission variability at Pele, Janus Patera and Kanehekili Fluctus with the Galileo NIMS Io Thermal Emission Database (NITED)

    Science.gov (United States)

    Davies, Ashley Gerard; Veeder, Glenn J.; Matson, Dennis L.; Johnson, Torrence V.

    2012-09-01

    Using the NIMS Io Thermal Emission Database (NITED), a collection of over 1000 measurements of radiant flux from Io’s volcanoes (Davies, A.G. et al. [2012]. Geophys. Res. Lett. 39, L01201. doi:10.1029/2011GL049999), we have examined the variability of thermal emission from three of Io’s volcanoes: Pele, Janus Patera and Kanehekili Fluctus. At Pele, the 5-μm thermal emission as derived from 28 night time observations is remarkably steady at 37 ± 10 GW μm-1, re-affirming previous analyses that suggested that Pele an active, rapidly overturning silicate lava lake. Janus Patera also exhibits relatively steady 5-μm thermal emission (≈20 ± 3 GW μm-1) in the four observations where Janus is resolved from nearby Kanehekili Fluctus. Janus Patera might contain a Pele-like lava lake with an effusion rate (QF) of ≈40-70 m3 s-1. It should be a prime target for a future mission to Io in order to obtain data to determine lava eruption temperature. Kanehekili Fluctus has a thermal emission spectrum that is indicative of the emplacement of lava flows with insulated crusts. Effusion rate at Kanehekili Fluctus dropped by an order of magnitude from ≈95 m3 s-1 in mid-1997 to ≈4 m3 s-1 in late 2001.

  16. Vavřínite Ni2SbTe2, a new mineral species from the Kunratice Cu–Ni sulfide deposit, Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Laufek, F.; Drábek, M.; Skála, Roman; Haloda, J.; Táborský, Z.; Císařová, I.

    2007-01-01

    Roč. 45, č. 5 (2007), s. 1213-1219 ISSN 0008-4476 Institutional research plan: CEZ:AV0Z30130516 Keywords : vavřínite * new mineral species * Ni–Sb telluride, * electron-microprobe data * reflectance data * synthetic Ni2SbTe2, X-ray-diffraction data * crystal structure * Kunratice (Czech Republic) Subject RIV: DB - Geology ; Mineralogy Impact factor: 1.057, year: 2007

  17. Evaluation of damage accumulation behavior and strength anisotropy of NITE SiC/SiC composites by acoustic emission, digital image correlation and electrical resistivity monitoring

    International Nuclear Information System (INIS)

    Nozawa, Takashi; Ozawa, Kazumi; Asakura, Yuuki; Kohyama, Akira; Tanigawa, Hiroyasu

    2014-01-01

    Understanding the cracking process of the composites is essential to establish the design basis for practical applications. This study aims to investigate the damage accumulation process and its anisotropy for nano-infiltration transient eutectic sintered (NITE) SiC/SiC composites by various characterization techniques such as the acoustic emission (AE), digital image correlation (DIC) and electrical resistivity (ER) measurements. Cracking behavior below the proportional limit stress (PLS) was specifically addressed. Similar to the other generic SiC/SiC composites, the 1st AE event was identified below the PLS for NITE SiC/SiC composites with a dependency of fabric orientation. The DIC results support that the primary failure mode depending on fiber orientation affected more than the other minor modes did. Detailed AE waveform analysis by wavelet shows a potential to classify the failure behavior depending on architecture. Cracking below the PLS is a potential concern in component deign but the preliminary ER measurements imply that the impact of cracking below the PLS on composite function was limited

  18. Tradition et innovations esthétiques dans la nouvelle yéménite contemporaine Tradition and aesthetic innovations in contemporary Yemeni short stories

    Directory of Open Access Journals (Sweden)

    Géraldine Jenvrin

    2008-04-01

    Full Text Available Le nouveau recueil de Mu/hammad ‘Abd al-Wakîl Jâzim témoigne d’une transformation capitale dans la littérature yéménite contemporaine :  le passage d’une forme expérimentale en rupture avec les règles de la nouvelle traditionnelle et avec la réalité yéménite, à une autre forme plus accomplie dans laquelle les principes traditionnels de la nouvelle sont ici associés sans complexe aux formes renouvelées du genre.  La nouvelle intitulée Le maître des vautours, présente, dans une structure narrative traditionnelle, un conte fantastique moderne qui mêle réalisme, symbolisme et poésie, et dans lequel l’auteur traite à sa manière les thèmes littéraires contemporains de la dualité du rêve et de la réalité, du désenchantement et de l’enfermement perpétuel.  C’est notamment en s’inspirant de la langue, des pratiques orales, des croyances et de l’imaginaire populaire, que l’auteur, soucieux de donner un ancrage au texte dans la réalité yéménite, transfigure cette expérience existentielle moderne.The latest collection of short stories by Mu/hammad 'Abd al-Wakîl signals a major shift in contemporary Yemeni literature: from an experimental form, breaking away from both traditional short story conventions and Yemeni reality, to another, more accomplished form, unabashedly mixing traditional short story principles with renewed genre forms. The short story entitled The Vulture Master presents us, from within a traditional narrative structure, with a modern fantasy tale blending in realism, symbolism and poetry, and where the writer deals in his own way with such contemporary literary themes as disenchantment, perpetual captivity, and the duality of dream and reality. Drawing his inspiration from language itself, oral practices, beliefs and popular imagery, the writer, seeking to set his tale firmly in Yemeni reality, manages to transfigure this modern existential experiment.

  19. Ahmad Yahyà al-Dhayfanî, La tendance nationaliste dans le mouvement des Yéménites libres

    Directory of Open Access Journals (Sweden)

    Hassan Ali Eissa

    2000-09-01

    Full Text Available Quelle était la nature du mouvement connu sous le nom des « Yéménites libres » dans la première moitié du XXe siècle ? Telle est la question à laquelle Ahmad al-Dhayfanî tente de répondre dans son ouvrage. Il retrace tout d’abord la genèse du mouvement, né d’oppositions individuelles et dispersées au régime de l’imam Yahyà après le départ des Turcs. Dans les années 1930, le mouvement cristallisa, d’abord à Sanaa, puis à Ta‘izz, l’opposition de trois groupes bien distincts, familles concurrent...

  20. Thermodynamic characterization of Ni3TeO6, Ni2Te3O8 and NiTe2O5

    Science.gov (United States)

    Dawar, Rimpi; Babu, R.; Ananthasivan, K.; Anthonysamy, S.

    2017-09-01

    Measurement of vapour pressure of TeO2(g) over the biphasic mixture Ni3TeO6 (s) + NiO(s) in the temperature range 1143-1272 K was carried out using transpiration-thermogravimetric technique (TTG). Gibbs energy of formation of Ni3TeO6 was obtained from the temperature dependence of vapour pressure of TeO2 (g) generated by the incongruent vapourisation reaction, Ni3TeO6 (s) → NiO(s) + TeO2 (g) + 1/2 O2 in the temperature range 1143-1272 K. An isoperibol type drop calorimeter was used to measure the enthalpy increments of Ni3TeO6, Ni2Te3O8 and NiTe2O5. Thermodynamic functions viz., heat capacity, entropy and Gibbs energy functions of these compounds were derived from the experimentally measured enthalpy increment values. Third-law analysis was carried out to ascertain absence of temperature dependent systematic errors in the measurement of vapour pressure of TeO2 (g). A value of -1265.1 ± 1.5 kJ mol-1 was obtained for Δ Hf,298K o (Ni3TeO6) using third-law analysis.

  1. Kobi niteliğindeki sağlık kuruluşlarında iç kontrol sistemi ve önemi

    Directory of Open Access Journals (Sweden)

    Güler GÜNEY

    2014-06-01

    Full Text Available Büyük küçük tüm sağlık kuruluşlarının, sürekliliklerini sağlayabilmeleri ve hedeflerine ulaşabilmeleri bakımından en önemli kriter etkili bir iç kontrol sistemine sahip olmalarıdır. Özellikle Türkiye gibi ekonomisi gelişmekte olan, ticari aktörlerinin çok büyük bir kısmı KOBİ statüsünde olan ülkelerde, ekonomik hayatı hareketlendirmek, sermaye piyasalarının gelişmesi ve işlerliğinin kuvvetlenmesinin sağlanmasında da yine en temel kriter etkin ve etkili bir iç kontrol siteminin varlığıdır. Çünkü etkili bir iç kontrol sistemi; hata, hile ve yolsuzlukların önlenmesinde ve işletme içinde uygulanan politika ve prosedürlerin uygulanma düzeyi ve verimliliğinin sağlanmasında da önemli bir etkendir. İster büyük, ister küçük olsun her işletmede etkin olan ya da olmayan bir iç kontrol mevcuttur. Ancak bu kontrollerin işletmede belirlenmiş bulunan belli politika ve prosedürlere göre yapılıp yapılmadığı ya da etkin olup olmadıkları tartışılabilmektedir. Ülkemizdeki sağlık kuruluşlarından, özellikle sermaye piyasalarında işlem gören kuruluşlarda mevzuatlar gereği iç kontrol sistemi kurulmuş olmasma rağmen, bu iç kontrol sisteminin tamamıyla örgütsel amaçlar doğrultusunda etkili ve verimli şekilde çalıştığını söylemek mümkün değildir. Ülkemizdeki KOBİ niteliğindeki sağlık kuruluşlarının hatırı bir kısmında ise iç kontrol sisteminin oldukça yetersiz ve zayıf olarak nitelenebilecek şekilde uygulandığı ifade edilebilir. Bu da diğer tüm KOBÎ'lerde olduğu gibi sağlık alanındaki kuruluşların büyüme, gelişme ve kurumsallaşması üzerine olumsuz etkide bulunmaktadır. Daha da önemlisi de kurumların örgütsel amaçlarını gerçekleştirmesinde zorluklarla karşılaşmasına sebep olmaktadır. Başka bir deyişle, etkin iç kontrol sisteminin işletmelerin ilgililerine fayda sağlaması gereklidir. Böylece i

  2. Stationary infinitely divisible processes

    DEFF Research Database (Denmark)

    Barndorff-Nielsen, Ole E.

    Several recent strands of work has led to the consideration of various types of continuous time stationary and infinitely divisible processes. A review of these types, with some new results, is presented.......Several recent strands of work has led to the consideration of various types of continuous time stationary and infinitely divisible processes. A review of these types, with some new results, is presented....

  3. Organik Gübre Kullanımının Yaygınlaştırılmasında Biogaz Üniteli Süt ve Besi Üretim Çiftlikleri Vasıtası ile ile Sözleşmeli Çiftçilik Modelinin Uygulanabilirliği

    Directory of Open Access Journals (Sweden)

    Jülide ERKMEN

    2012-03-01

    Full Text Available Ülkemizde mevcut süt ve besi işletmelerinin hayvansal yem ve maliyet girdilerinde problem yaşamaları, hayvansal yem üreticisinin ise hasat ettiği ürünü çoğu zaman elden çıkaramaması ekonomisi tarım ve hayvancılığa dayalı bölgelerde önemli bir sorun olarak karşımıza çıkmaktadır. Bununla birlikte biyogaz üniteli süt ve besi üretim çiftliklerinin biyogaz ünitelerinden elde edilen organik gübrenin yakın çevredeki hayvan yemi üreten çiftçiye dağıtılması ve karşılığında üretilen hayvansal yemin alınması suretiylegerçekleştirilecek sözleşmeli çiftçilik modeli, hem organik gübrenin yaygınlaştırılmasında hem de çevresel kirliliğe sebep olan hayvansal atık probleminin ortadan kaldırılmasında güçlü bir rol oynayacaktır. Ayrıca mevcut süt ve besi işletmeleri ile hayvansal yem üreticileri entegre edilerek üretilecek gübre yakın çevrede kullanılacağından paketleme ve pazarlama giderlerini ve ürünlerin elde kalma ihtimalini ortadan kaldıracaktır. Sonuç itibariyle özellikle kırsal bölgelerde biyogaz ünitesinin kurulumu ile organik gübrenin kullanımı teşvik edilecek, yapılacak sözleşme ile yine bu bölgelerde kimyasal gübrenin kullanımı önlenmiş olunacaktır

  4. Stochastic finite element analysis of long-span bridges with CFRP ...

    Indian Academy of Sciences (India)

    Stochastic seismic analysis of long-span bridges with Carbon fibre reinforced polymer (CFRP) cables are presented in this study through combination of the advantages ... Gümüşhane University, Department of Civil Engineering, 29000, Gümüşhane, Turkey; Karadeniz Technical University, Department of Civil Engineering, ...

  5. Linear, Transfinite and Weighted Method for Interpolation from Grid Lines Applied to OCT Images

    DEFF Research Database (Denmark)

    Lindberg, Anne-Sofie Wessel; Jørgensen, Thomas Martini; Dahl, Vedrana Andersen

    2018-01-01

    of a square grid, but are unknown inside each square. To view these values as an image, intensities need to be interpolated at regularly spaced pixel positions. In this paper we evaluate three methods for interpolation from grid lines: linear, transfinite and weighted. The linear method does not preserve...... and the stability of the linear method further away. An important parameter influencing the performance of the interpolation methods is the upsampling rate. We perform an extensive evaluation of the three interpolation methods across a range of upsampling rates. Our statistical analysis shows significant difference...... in the performance of the three methods. We find that the transfinite interpolation works well for small upsampling rates and the proposed weighted interpolation method performs very well for all upsampling rates typically used in practice. On the basis of these findings we propose an approach for combining two OCT...

  6. On permutation polynomials over finite fields: differences and iterations

    DEFF Research Database (Denmark)

    Anbar Meidl, Nurdagül; Odzak, Almasa; Patel, Vandita

    2017-01-01

    The Carlitz rank of a permutation polynomial f over a finite field Fq is a simple concept that was introduced in the last decade. Classifying permutations over Fq with respect to their Carlitz ranks has some advantages, for instance f with a given Carlitz rank can be approximated by a rational li...

  7. Stress and displacement analysis of a modern design lathe body by the fi nite element method (FEM

    Directory of Open Access Journals (Sweden)

    R. Staniek

    2012-01-01

    Full Text Available The Finite element method (FEM was used in this study for the analysis of the strain and stress of a turning machine body. The fi nal design decisions were made on the basis of stress and displacement fi eld analysis of various design versions related to the structure of the considered machine tool. The results presented in this paper will be helpful for practical static and dynamic strength evaluation as well as for the appropriate design of machine tools using the FEM.

  8. Time 2 tlk 2nite: use of electronic media by adolescents during family meals and associations with demographic characteristics, family characteristics, and foods served.

    Science.gov (United States)

    Fulkerson, Jayne A; Loth, Katie; Bruening, Meg; Berge, Jerica; Eisenberg, Marla E; Neumark-Sztainer, Dianne

    2014-07-01

    We examined the frequency of adolescents' use of electronic media (ie, television/movie watching, text messaging, talking on the telephone, listening to music with headphones, and playing with hand-held games) at family meals and examined associations with demographic characteristics, rules about media use, family characteristics, and the types of foods served at meals using an observational, cross-sectional design. Data were drawn from two coordinated, population-based studies of adolescents (Project Eating Among Teens 2010) and their parents (Project Families and Eating Among Teens). Surveys were completed during 2009-2010. Frequent television/movie watching during family meals by youth was reported by 25.5% of parents. Multivariate logistic regression analyses indicated significantly higher odds of mealtime media use (P<0.05) for girls and older teens. In addition, higher odds of mealtime media use (P<0.05) were also seen among those whose parents had low education levels or were black or Asian; having parental rules about media use significantly reduced these odds. Frequent mealtime media use was significantly associated with lower scores on family communication (P<0.05) and scores indicating less importance placed on mealtimes (P<0.001). Furthermore, frequent mealtime media use was associated with lower odds of serving green salad, fruit, vegetables, 100% juice, and milk at meals, whereas higher odds were seen for serving sugar-sweetened beverages (P<0.05). The ubiquitous use of mealtime media by adolescents and differences by sex, race/ethnicity, age, and parental rules suggest that supporting parents in their efforts to initiate and follow-through on setting mealtime media use rules may be an important public health strategy. Copyright © 2014 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  9. Maxwell-Cattaneo Heat Convection and Thermal Stresses Responses of a Semi-Infinite Medium to High-Speed Laser Heating due to High Speed Laser Heating

    Directory of Open Access Journals (Sweden)

    Abdallah I. A.

    2009-07-01

    Full Text Available Based on Maxwell-Cattaneo convection equation, the thermoelasticity problem is in- vestigated in this paper. The analytic solution of a boundary value problem for a semi- infinite medium with traction free surface heated by a high-speed laser-pulses have Dirac temporal profile is solved. The temperature, the displacement and the stresses distributions are obtained analytically using the Laplace transformation, and discussed at small time duration of the laser pulses. A numerical study for Cu as a target is performed. The results are presented graphically. The obtained results indicate that the small time duration of the laser pulses has no e ect on the finite velocity of the heat con- ductivity, but the behavior of the stress and the displacement distribution are affected due to the pulsed heating process and due to the structure of the governing equations.

  10. Etude de l’altération de la calcarénite des monuments de Rabat : Influence de la Pollution Atmosphérique et des Aérosols Marins

    Directory of Open Access Journals (Sweden)

    Zaouia Nouhad

    2014-04-01

    Le but du présent travail est de constituer une base de données pour orienter les recherches ultérieures sur la problématique de la conservation du patrimoine bâti et optimiser le choix des matériaux de remplacement, tout en prenant en compte tous les mécanismes et démarches nécessaires pour une meilleure protection dans lecadre d’un développement urbain en perpétuelle expansion.

  11. Accurate Locally Conservative Discretizations for Modeling Multiphase Flow in Porous Media on General Hexahedra Grids

    KAUST Repository

    Wheeler, M.F.; Xue, G.

    2010-01-01

    For many years there have been formulations considered for modeling single phase ow on general hexahedra grids. These include the extended mixed nite element method, and families of mimetic nite di erence methods. In most of these schemes either

  12. Découverte et signification d'une paragenèse à ilménite zincifère dans les métapélites des Jebilet centrales (Maroc)Occurrence and significance of zincian ilmenite in low-pressure metapelites from central Jebilet (Morocco)

    Science.gov (United States)

    Essaifi, Abderrahim; Ballèvre, Michel; Marignac, Christian; Capdevila, Ramon

    2001-10-01

    A zincian ilmenite paragenesis is found in metapelites from a contact metamorphic zone (central Jebilet, Morocco) induced by the emplacement of microgranitic intrusions. The zincian ilmenite is mainly preserved in syntectonic andalusite porphyroblasts. The growth of zincian ilmenite is related either to sphalerite breakdown during prograde metamorphism, or to the pervasive flow of a mineralizing fluid within the metapelites. The chlorine-rich fluid carried zinc and other metals leached in the microgranites, during its flow to discharge zones which were probably the Jebilet sulfide deposits.

  13. Gencine-i Adalet’te İktidar Aracı Niteliği İle Bilgi Üzerine Söylem Çözümlemesi Discourse Analysis On Knowledge As A Tool Of Power In Gencine-i Adalet

    Directory of Open Access Journals (Sweden)

    Hacı Ömer KARPUZ

    2012-12-01

    Full Text Available Manuscript pieces are one of the significant elements of ourcultural treasury. We think that besides their grammar features,contextual analysis of these pieces also needs to be done. Our study, wetry to do accordingly, is about 360-page text of talik calligraphy, entitledGencine-i Adalet, which had a characteristic of copyright book ofgovernment and which was presented to Ottoman Empire Sultan 1stAhmet in the 17th century. Along with its social features andnationalistic state government construction This historical text,,including multi-directional characteristics of Power concept, is analyseddiscursively according to Michel Foucault’s theory and methods who isthe owner of the leading views in both the fields’ of philosophy of powerand discourse analysis. Firstly we give a general theoretical informationabout power concept and philosophy of power and then discourseconcept and discourse analysis. Depending on these information wework on theory and method and introduce them within the intersectionline of philosophy and linguistics. After this, in the subchapter wherewe passed to the applications, base units of power philosophy,depending on Gencine-i Adalet and taken from it, are analyseddiscursively. Although Political Treatises (Siyasetname generally havetheoretical content, the theories in Gencine-i Adalet especially in fourthpart supported by story applications having historical aspects. Instories Arabic and Persian words and noun phrases replaced by Turkishones. Thus theories supported by applications presented in a moresimple language. The fact that theoretical expression are written in aintricate way can be explained with the necessity of narrators thesubject reality have. This rationale is used in the text, "ie, meaning,means" with the words "information" and thus making governmentmore powerful is aimed.

  14. KOBİ Niteliğindeki Tekstil ve Hazır Giyim İşletmelerinin Uluslararası Pazarlara Açılmasında Sektörel Dış Ticaret Şirketlerinin Etkisi(The Effect of Sectoral Foreign Trade Companies In Opening Up of Textile and Ready-Made Clothing SMES To The International Markets

    Directory of Open Access Journals (Sweden)

    Turan ATILGAN

    2006-01-01

    Full Text Available Although small and and medium size enterprises (SMES are the first models of management involved in the economic and social structure of the world they have unfortunately never received the necessary attention and importance. A German Economist Dr. E.F. Schumacher’s publication of “Small is Beautiful” in 1973, it was understood that they were economically and social organizations and since that date many researches importantstudied on them. SMES, not only by their economical altributes but also by their social aspects are among the most important factors in development and growth of a society. Besides, SMES undertake very significant roles in economical development of the society they are also economical and social influencing on a number of issues, such as resolving the employment problem, promoting the entrepreneuship and providing the economical and social justice. Today, in almost all of the contries 95-99 % of total enterprises comprises of SMES. In our country, while quantitatively SMES comprise 98 % of all enterprises, they also make considerable contributions to the employment, export and GNP. This study investigates the Turkish Sectoral Foreign Trade Enterprises considered as SMES and their effects on the Turkish economy and particularly on the textile industry .

  15. Dynamical systems and algebra associated with seperated graphs

    DEFF Research Database (Denmark)

    Lolk, Matias

    In this thesis, we study partial dynamical systems and graph algebras arising from nitely separated graphs. The thesis consists of an introduction followed by three papers, the rst of which is joint work with Pere Ara. In Article [A], we introduce convex subshifts, an abstract generalisation...... of the partial dynamical systems associated with nite separated graphs. We dene notions of a nite and innite type convex subshift and show that all such dynamical systems arise from a nite bipartite separated graph up to a suitable type of equivalence. We then study various aspects of the ideal structure...

  16. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana; Volume 37; Issue 3. Issue front cover thumbnail. Volume 37, Issue 3. June 2012, pages 319-423. pp 319-340. A reduced polynomial chaos expansion method for the stochastic finite element analysis · B Pascual S Adhikari · More Details Abstract Fulltext PDF. The stochastic finite element analysis ...

  17. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Interestingly, an esoteric branch of pure mathematics called “functional analysis”, more general and profound than variational calculus and originally developed by mathematicians, can be employed to explain clearly how the finite element machinery works. In a very abstract way, finite element results can be portrayed as ...

  18. Examining the best-fit paradigm for FEM at element level

    Indian Academy of Sciences (India)

    Interestingly, an esoteric branch of pure mathematics called “functional analysis”, more general and profound than variational calculus and originally developed by mathematicians, can be employed to explain clearly how the finite element machinery works. In a very abstract way, finite element results can be portrayed as ...

  19. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. K Mallikarjuna Rao. Articles written in Sadhana. Volume 26 Issue 6 December 2001 pp 549-590. A set of pathological tests to validate new finite elements · K Mallikarjuna Rao U Shrinivasa · More Details Abstract Fulltext PDF. The finite element method entails several approximations. Hence it is ...

  20. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. S Narayanan. Articles written in Sadhana. Volume 31 Issue 4 August 2006 pp 445-461. Solution of Fokker–Planck equation by finite element and finite difference methods for nonlinear systems · Pankaj Kumar S Narayanan · More Details Abstract Fulltext PDF. The response of a structural system ...

  1. Solution of Fokker–Planck equation by finite element and finite ...

    Indian Academy of Sciences (India)

    The response of a structural system to white noise excitation (delta-correlated) constitutes a Markov vector process whose transitional probability density function (TPDF) is governed by both the forward Fokker–Planck and backward Kolmogorov equations. Numerical solution of these equations by finite element and finite ...

  2. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    This talk discusses methods of extending lattice computations at finite temperature into regions of finite chemical potential, and the conditions under which such results from the lattice may be compared to experiments. Such comparisons away from a critical point are absolutely essential for quantitative use of lattice QCD in ...

  3. Hydrodynamic coefficients for water-wave diffraction by spherical ...

    Indian Academy of Sciences (India)

    ... the polynomials is utilized to simplify the expressions. Since the infinite series appearing in various expressions have excellent truncation properties, they are evaluated by considering only a finite number of terms. Gaussian quadrature is used to evaluate the integrals. Numerical estimates for the analytical expressions for ...

  4. On Graph C*-Algebras with a Linear Ideal Lattice

    DEFF Research Database (Denmark)

    Eilers, Søren; Restorff, Gunnar; Ruiz, Efren

    2010-01-01

    At the cost of restricting the nature of the involved K-groups, we prove a classication result for a hitherto unexplored class of graph C-algebras, allowing us to classify all graph C-algebras on nitely many vertices with a nite linear ideal lattice if all pair of vertices are connected by innitely...

  5. On character amenability of semigroup algebras | Maepa ...

    African Journals Online (AJOL)

    We study the character amenability of semigroup algebras. We work on general semigroups and certain semigroups such as inverse semigroups with a nite number of idempotents, inverse semigroups with uniformly locally nite idempotent set, Brandt and Rees semigroup and study the character amenability of the ...

  6. Local defect correction for boundary integral equation methods

    NARCIS (Netherlands)

    Kakuba, G.; Anthonissen, M.J.H.

    2013-01-01

    This paper presents a new approach to gridding for problems with localised regions of high activity. The technique of local defect correction has been studied for other methods as ¿nite difference methods and ¿nite volume methods. In this paper we develop the technique for the boundary element

  7. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The breakup temperature obtained from SMM also shows the same trend as seen in data. This trend is attributed primarily to the increasing Coulomb energy with finite size effects playing a smaller role. The percolation and Ising model studies for finite size neutral matter show behavior which is opposite to the one seen in ...

  8. General Equilibrium Model with a Convex Cone as the Set of Commodity Bundles

    NARCIS (Netherlands)

    Schalk, S.

    1996-01-01

    In this paper, we present a model for an exchange economy which is an extension of the classical model as introduced by Arrow and Debreu.In the classical model, there is a nite number of commodi- ties and a nite number of consumers.The commodities are treated separately, and so a commodity bundle is

  9. Plaadid / Andre Pichen

    Index Scriptorium Estoniae

    Pichen, Andre

    2006-01-01

    Uutest heliplaatidest Volbeat "The Strength, The Sound, The Songs", Soulwax "Nite Versions", Praful "Pyramid In Your Backyard", Eminem "Curtain Call", "Bossa 'n'' Stones", Mr Oizo "Moustache", Westlife "Face To Face"

  10. A New Criterion for Optimality in Nonlinear Programming

    Directory of Open Access Journals (Sweden)

    L.M. Graña Drummond

    2012-04-01

    Full Text Available We establish a sufficient condition for the existence of minimizers of real-valued convex functions on closed subsets of finite dimensional spaces. We compare this condition with other related results.

  11. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Committee on Scientific Values · Project Lifescape · Scientific Data of Public Interest ... Viaduct roads have wide application in big cities with high traffic loads, ... technique, finite elements analysis, experimentally and neural networks (NN).

  12. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Numerical simulation with finite element and artificial neural network of ball ... The methodology evolved in this work can be extended to predict material properties ... Reactor Safety Division, Bhabha Atomic Research Centre (BARC), Trombay, ...

  13. Finite element model updating in structural dynamics using design sensitivity and optimisation

    OpenAIRE

    Calvi, Adriano

    1998-01-01

    Model updating is an important issue in engineering. In fact a well-correlated model provides for accurate evaluation of the structure loads and responses. The main objectives of the study were to exploit available optimisation programs to create an error localisation and updating procedure of nite element models that minimises the "error" between experimental and analytical modal data, addressing in particular the updating of large scale nite element models with se...

  14. VizieR Online Data Catalog: MASCARA-2 b (HD185603) light curves and spectra (Talens+, 2018)

    Science.gov (United States)

    Talens, G. J. J.; Justesen, A. B.; Albrecht, S.; McCormac, J.; van Eylen, V.; Otten, G. P. P. L.; Murgas, F.; Palle, E.; Pollacco, D.; Stuik, R.; Spronck, J. F. P.; Lesage, A.-L.; Grundahl, F.; Fredslund Andersen, M.; Antoci, V.; Snellen, I. A. G.

    2018-02-01

    Photometric time-series and radial velocities obtained for MASCARA-2 using the MASCARA, NITES, IAC80 and SONG telescopes. The MASCARA photometry covers the period from February 2015 to December 2016 and utilizes no filter. The NITES and IAC80 photometry was obtained during the night of 4 June 2017 utilizing the R filter. The SONG RVs cover the period from May-June 2017. (26 data files).

  15. TRANSFORMATION ISOTHERME D'UN ACIER A HAUTE RESISTANCE 40 CDV 13

    Directory of Open Access Journals (Sweden)

    A BOUTEFNOUCHET

    2001-06-01

    Full Text Available L'étude dilatométrique du comportement de l'austénite en condition isotherme d'un acier ternaire, à haute résistance mécanique de nuance 40 CDV 13, nous a permis de tracer son diagramme TTT. L'austénitisation a été réalisée pendant 10 minutes à  qg = 950°C (utilisée dans  l'industrie. Les températures de maintien sont comprises entre Ac1 = 810°C et Ms  = 310°C. Dans ce diagramme TTT, on distingue deux domaines de transformation isotherme de l'austénite. Le domaine I (625°C £  qiso < Ac1 = 810°C dans lequel l'austénite se transforme en ferrite et en perlite, et le domaine II (325°C  £  qiso £ 475°C où l'austénite se transforme en bainite ou en ferrite probainitique. Ces transformations sont précédées pour toutes les températures de maintien isotherme d'une précipitation de carbures. En outre, ces deux domaines de transformation de l'austénite sont séparés par une large zone de stabilité de l'austénite comprise entre 500°C et 600°C. L'analyse approfondie des courbes dilatométriques enregistrées durant le maintien isotherme et le refroidissement final jusqu'à l'ambiante, nous a permis de déterminer qualitativement et quantitativement les phase mises en jeu par ces transformations isothermes de l'austénite.

  16. Ruin Probabilities in a Dependent Discrete-Time Risk Model With Gamma-Like Tailed Insurance Risks

    Directory of Open Access Journals (Sweden)

    Xing-Fang Huang

    2017-03-01

    Full Text Available This paper considered a dependent discrete-time risk model, in which the insurance risks are represented by a sequence of independent and identically distributed real-valued random variables with a common Gamma-like tailed distribution; the financial risks are denoted by another sequence of independent and identically distributed positive random variables with a finite upper endpoint, but a general dependence structure exists between each pair of the insurance risks and the financial risks. Following the works of Yang and Yuen in 2016, we derive some asymptotic relations for the finite-time and infinite-time ruin probabilities. As a complement, we demonstrate our obtained result through a Crude Monte Carlo (CMC simulation with asymptotics.

  17. Gas leak tightness of SiC/SiC composites at elevated temperature

    Energy Technology Data Exchange (ETDEWEB)

    Hayasaka, Daisuke, E-mail: hayasaka@oasis.muroran-it.ac.jp [OASIS, Muroran Institute of Technology, Muroran, Hokkaido (Japan); Graduate School of Engineering, Muroran Institute of Technology, Muroran, Hokkaido (Japan); Park, Joon-Soo. [OASIS, Muroran Institute of Technology, Muroran, Hokkaido (Japan); Kishimoto, Hirotatsu [OASIS, Muroran Institute of Technology, Muroran, Hokkaido (Japan); Graduate School of Engineering, Muroran Institute of Technology, Muroran, Hokkaido (Japan); Kohyama, Akira [OASIS, Muroran Institute of Technology, Muroran, Hokkaido (Japan)

    2016-11-01

    Highlights: • NITE-SiC/SiC has extremely densified microstructure compared with other SiC/SiC composite like CVI. • Excellent helium and hydrogen gas-leak tightness of SiC/SiC composites by DEMO-NITE method from prototype industrialization production line was presented. • The excellence against stainless steel and Zircaloy at elevated temperature, together with generic excellent properties of SiC will be inevitable for innovative blanket and divertors for DEMO- and power- fusion reactors. - Abstract: SiC/SiC composite materials are attractive candidates for high heat flux components and blanket of fusion reactor, mainly due to their high temperature properties, radiation damage tolerance and low induced radioactivity. One of the challenges for SiC/SiC application in fusion reactors is to satisfy sufficient gas leak tightness of hydrogen and helium isotopes. Although many efforts have been carried-out, SiC/SiC composites by conventional processes have not been successful to satisfy the requirements, except SiC/SiC composites by NITE-methods. Toward the early realization of SiC/SiC components into fusion reactor systems process development of NITE-process has been continued. Followed to the brief introduction of recently developed DEMO-NITE process, baseline properties and hydrogen and helium gas leak tightness is presented. SiC/SiC claddings with 10 mm in diameter and 1 mm in wall thickness are tested by gas leak tightness system developed. The leak tightness measurements are done room temperature to 400 °C. Excellent gas leak tightness equivalent or superior to Zircaloy claddings for light water fission reactors is confirmed. The excellent gas leak tightness suggests nearly perfect suppression of large gas leak path in DEMO-NITE SiC/SiC.

  18. NUMERICAL ANALYSIS OF AN INVERSE PROBLEM ORIGINATED IN PHENOMENON OF POLLUTION AIR URBAN

    Directory of Open Access Journals (Sweden)

    Aníbal Coronel

    2016-12-01

    Full Text Available This paper presents the calibration study of a two - dimensional mathematical model for the problem of urban air pollution. It is mainly assumed that air pollution is afected by wind convection, diffusion and chemical reactions of pollutants. Consequently, a convection-diffusion-reaction equation is obtained as a direct problem. In the inverse problem, the determination of the diffusion is analyzed, assuming that one has an observation of the pollutants in a nite time. To solve it numerically the nite volume method is used, the least squares function is considered as cost function and the gradient is calculated with the sensitivity method.

  19. Learning and Model-checking Networks of I/O Automata

    DEFF Research Database (Denmark)

    Mao, Hua; Jaeger, Manfred

    2012-01-01

    We introduce a new statistical relational learning (SRL) approach in which models for structured data, especially network data, are constructed as networks of communicating nite probabilistic automata. Leveraging existing automata learning methods from the area of grammatical inference, we can...... learn generic models for network entities in the form of automata templates. As is characteristic for SRL techniques, the abstraction level aorded by learning generic templates enables one to apply the learned model to new domains. A main benet of learning models based on nite automata lies in the fact...

  20. Dynamic income taxation without commitment: Comparing alternative tax systems

    OpenAIRE

    Guo, J-T; Krause, A

    2015-01-01

    This paper addresses the question as to whether it is optimal to use separating or pooling nonlinear income taxation, or to use linear income taxation, when the government cannot commit to its future tax policy. We consider both two- period and inÖnite-horizon settings. Under empirically plausible parameter values, separating income taxation is optimal in the two-period model, whereas linear income taxation is optimal when the time horizon is inÖnite. The welfare e§ects of varying the di...

  1. MFE revisited : part 1: adaptive grid-generation using the heat equation

    OpenAIRE

    Zegeling, P.A.

    1996-01-01

    In this paper the moving-nite-element method (MFE) is used to solve the heat equation, with an articial time component, to give a non-uniform (steady-state) grid that is adapted to a given prole. It is known from theory and experiments that MFE, applied to parabolic PDEs, gives adaptive grids which satisfy an equidistribution type law. This property is used to create non-uniform nite-element grids that are dictated by second-order derivatives of the solution. The proposed procedure could be u...

  2. VizieR Online Data Catalog: K2-19b light curve (Armstrong+, 2015)

    Science.gov (United States)

    Armstrong, D. J.; Santerne, A.; Veras, D.; Barros, S. C. C.; Demangeon, O.; Lillo-Box, J.; McCormac, J.; Osborn, H. P.; Tsantaki, M.; Almenara, J.-M.; Barrado, D.; Boisse, I.; Bonomo, A. S.; Brown, D. J. A.; Bruno, G.; Rey Cerda, J.; Courcol, B.; Deleuil, M.; Diaz, R. F.; Doyle, A. P.; Hebrard, G.; Kirk, J.; Lam, K. W. F.; Pollacco, D. L.; Rajpurohit, A.; Spake, J.; Walker, S. R.

    2015-08-01

    The Near Infrared Transiting ExoplanetS (NITES) Telescope is a semi-robotic 0.4m (f/10) Meade LX200GPS Schmidt-Cassegrain telescope installed at the ORM, La Palma. One transit of K2-19b was observed on 2015 Feb 28. The telescope was defocused slightly to 3.3 FWHM and 814 images of 20s exposure time were obtained with 5s dead time between each. Observations were obtained without a filter. The table presents data taken with the NITES telescope shown in Figure 1 of the publication. (1 data file).

  3. Inhomogeneous Spin Diffusion in Traps with Cold Atoms

    DEFF Research Database (Denmark)

    Heiselberg, Henning

    2012-01-01

    increases. The inhomogeneity and the smaller nite trap size signicantly reduce the spin diusion rate at low temperatures. The resulting spin diusion rates and spin drag at longer time scales are compatible with measurements at low to high temperatures for resonant attractive interactions...

  4. Evanescent magnetic field effects on entropy generation at the onset ...

    Indian Academy of Sciences (India)

    This paper numerically investigates the effect of an externally evanescent magnetic field on total entropy generation in a fluid enclosed in a square cavity by using a control volume finite element method to solve the conservation equations at Prandtl number of 0·71. The values of relaxation time of the magnetic field are ...

  5. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    In prosthetic applications, the reliability of implant materials over a period of thirty years is absolutely essential. Calculation of the lifetimes of alumina ceramic heads is generally made on the basis of experimental fatigue and slow crack growth tests using finite element analysis. This investigation is aimed at understanding ...

  6. Analytical solutions of one-dimensional advection–diffusion

    Indian Academy of Sciences (India)

    Analytical solutions are obtained for one-dimensional advection –diffusion equation with variable coefficients in a longitudinal finite initially solute free domain,for two dispersion problems.In the first one,temporally dependent solute dispersion along uniform flow in homogeneous domain is studied.In the second problem the ...

  7. EEG changes and neuroimaging abnormalities in relevance to ...

    African Journals Online (AJOL)

    Background: Autism is currently viewed as a genetically determined neurodevelopmental disorder although its defi nite underlying etiology remains to be established. Aim of the Study: Our purpose was to assess autism related morphological neuroimaging changes of the brain and EEG abnormalities in correlation to the ...

  8. Guessing and compression subject to distortion

    OpenAIRE

    Hanawal, Manjesh Kumar; Sundaresan, Rajesh

    2010-01-01

    The problem of guessing a random string is revisited. The relation-ship between guessing without distortion and compression is extended to the case when source alphabet size is countably in¯nite. Further, similar relationship is established for the case when distortion allowed by establishing a tight relationship between rate distortion codes and guessing strategies.

  9. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    In finite-size systems, we find that mesoscopic effects often dominate, leading to apparent non-universal scaling behavior in higher Landau levels. This is because localization length, which grows exponentially with Landau level index, exceeds the system sizes amenable to the numerical study at present. When band mixing ...

  10. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Volume 77 Issue 5 November 2011 pp 865-871 Synchronization, Coupled Systems and Networks. The effect of finite response–time in coupled dynamical systems · Garima Saxena Awadhesh Prasad Ram Ramaswamy · More Details Abstract Fulltext PDF. The paper investigates synchronization in unidirectionally coupled ...

  11. WEST AFRICAN JOURNAL OF MEDICINE

    African Journals Online (AJOL)

    user1

    WEST AFRICAN JOURNAL OF MEDICINE. Tuberculous Lymphadenitis: Skin Delayed-Type Hypersensitivity Reaction and. Cellular Immune Responses. Lymphadénite Tuberculeuse: Peau Réaction d'hypersensibilité Retardée de Type et les Réponses. Immunitaires Cellulaires. E. A. G. Khalil†*, A. A. Elnour†, A. M. Musa†, ...

  12. BioMAV : Bio-inspired intelligence for autonomous flight

    NARCIS (Netherlands)

    Gerke, P.K.; Langevoort, J.; Lagarde, S.; Bax, L.; Grootswagers, T.; Drenth, R.J.; Slieker, V.; Vuurpijl, L.; Haselager, P.; Sprinkhuizen-Kuyper, I.; Van Otterlo, M.; De Croon, G.C.H.E.

    2011-01-01

    This paper aims to contribute to research on biologically inspired micro air vehicles in two ways: (i) it explores a novel repertoire of behavioral modules which can be controlled through ?nite state machines (FSM) and (ii) elementary movement detectors (EMD) are combined with a center/surround edge

  13. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The objective of this paper is to estimate permanent displacements of Tehri dam due to an earthquake of magnitude M w = 8 · 5 , the occurrence of which has a high probability in the region, and for an earthquake of magnitude M w = 7 · 0 , for which the dam has been currently designed. A two-dimensional finite element ...

  14. Fluid Mechanics of Fish Swimming

    Indian Academy of Sciences (India)

    user

    W here does the energy expended by the m us- cles go? ... A s one goes from anguilliform to thunniform m odes the body undu- ... the wake will de¯nitely be turbulent. In contrast, for a sea ... B C F sw im m ers also m ay use M P F m odes for m ...

  15. Uppaal - Present and Future

    DEFF Research Database (Denmark)

    Behrmann, Gerd; David, Alexandre; Larsen, Kim Guldstrand

    2001-01-01

    with nite control structure and real-valued clocks, communicating through channels or shared variables. Typical application areas include real-time controllers and communication protocols in particular, those where timing aspects are critical. In this paper, we review the status of the currently distributed...

  16. The system Ni–Sb–Te at 400°C

    Czech Academy of Sciences Publication Activity Database

    Laufek, F.; Drábek, M.; Skála, Roman

    2010-01-01

    Roč. 48, č. 5 (2010), s. 1069-1079 ISSN 0008-4476 Institutional research plan: CEZ:AV0Z30130516 Keywords : phase relations * vavřínite * system Ni–Sb–Te * tellurides Subject RIV: DB - Geology ; Mineralogy Impact factor: 1.289, year: 2010

  17. Solving discrete zero point problems

    NARCIS (Netherlands)

    van der Laan, G.; Talman, A.J.J.; Yang, Z.F.

    2004-01-01

    In this paper an algorithm is proposed to .nd a discrete zero point of a function on the collection of integral points in the n-dimensional Euclidean space IRn.Starting with a given integral point, the algorithm generates a .nite sequence of adjacent integral simplices of varying dimension and

  18. The effects of gastrocnemius-soleus muscle forces on ankle biomechanics during triple arthrodesis

    DEFF Research Database (Denmark)

    Hejazi, Shima; Rouhi, Gholamreza; Rasmussen, John

    2017-01-01

    This paper presents a finite element model of the ankle, taking into account the effects of muscle forces, determined by a musculoskeletal analysis, to investigate the contact stress distribution in the tibio-talar joint in patients with triple arthrodesis and in normal subjects. Forces of major a...

  19. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Advanced constitutive models implemented in the finite element system ATENA serve as rational tools to explain the behaviour of connection between steel and concrete. Three nonlinear material models available in ATENA are described: crack band model based on fracture energy, fracture-plastic model with ...

  20. Complexity control in statistical learning

    Indian Academy of Sciences (India)

    Then we describe how the method of regularization is used to control complexity in learning. We discuss two examples of regularization, one in which the function space used is finite dimensional, and another in which it is a reproducing kernel Hilbert space. Our exposition follows the formulation of Cucker and Smale.

  1. Synthesis, characterization and gas sensing performance of ...

    Indian Academy of Sciences (India)

    death of an animal [11]. Some of the researchers have reported some metal oxide materials [12–20], polyaniline. [21], Nafion [22] and polypyrrole [23] thin ... The thermal behavior of the cancri- nite was examined within the temperature range of room tem- perature to 853 K. The MAS NMR of 23Na, and 29Si nuclei analysis ...

  2. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    In the present work, a functionally graded model of an air-cooled turbine blade with airfoil geometry conforming to the NACA0012 is developed which is then used in a finite element algorithm to obtain a non-linear steady state solution to the heat equation for the blade under convection and radiation boundary conditions.

  3. Information flow in quantum teleportation

    Indian Academy of Sciences (India)

    However there are cases [6] where FTL signaling is defi- nitely prohibited ... Alice now performs measurements on the joint system of particles 1 and 2 to distinguish between the ... To recover the original state, Bob then has to apply the appro-.

  4. The Theory of Equations and the Birth of Modern Group Theory

    Indian Academy of Sciences (India)

    In school, we learn how to solve quadratic equations ao + alx + a2x2 = O. ... mathematician or how sophisticated the method, one can- not get a 'formula' in the .... nite set of n elements, SeX) is usually denoted by Sn and is called the symmetric ...

  5. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    pp 241-253. An approximate method for lateral stability analysis of wall-frame buildings including shear deformations of walls ... A study on soil–structure interaction analysis in canyon-shaped topographies ... Stochastic finite element analysis of long-span bridges with CFRP cables under earthquake ground motion.

  6. Efficient explicit formulation for practical fuzzy structural analysis

    Indian Academy of Sciences (India)

    This paper presents a practical approach based on High Dimensional Model Representation (HDMR) for analysing the response of structures with fuzzy parameters. The proposed methodology involves integrated finite element modelling, HDMR based response surface generation, and explicit fuzzy analysis procedures.

  7. A retrial queueing-inventory system with J-additional options for ...

    African Journals Online (AJOL)

    A continuous review (s; S) inventory system at a service facility with nite homogeneous sources of demands and retrial is analysed. The lifetime of each item is assumed to be exponential. Before items are delivered to the customers, some basic service on the item must be performed. It is known as a regular or main service.

  8. Plastic collapse load of corroded steel plates

    Indian Academy of Sciences (India)

    Keywords. Corroded steel plate; plastic collapse; FEM; rough surface. ... The main aim of present work is to study plastic collapse load of corroded steel plates with irregular surfaces under tension. Non-linear finite element method ... Department of Ocean Engineering, AmirKabir University of Technology, 15914 Tehran, Iran ...

  9. The Dugdale solution for two unequal straight cracks weakening

    Indian Academy of Sciences (India)

    A crack arrest model is proposed for an infinite elastic perfectly-plastic plate weakened by two unequal, quasi-static, collinear straight cracks. The Dugdale model solution is obtained for the above problem when the developed plastic zones are subjected to normal cohesive quadratically varying yield point stress. Employing ...

  10. ABIOTIC DEHALOGENATION OF 1,2-DICHLOROETHANE AND 1,2-DIBROMETHANE IN AQUEOUS SOLUTION CONTAINING HYDROGEN SULFIDE

    Science.gov (United States)

    The detection of significant levels of halogenated ali- phatic contaminants in groundwater resources in the U- nited States (1, 2) has spurred a considerable effort to understand the various mechanisms-both microbiological and abiotic-by which these compounds may be trans- formed...

  11. ORiON - Vol 33, No 2 (2017)

    African Journals Online (AJOL)

    A retrial queueing-inventory system with J-additional options for service and nite source · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. VSS Yadavalli, K Jeganathan, T Venkatesan, S Padmasekaran, S Jehoashan Kingsly, 105-135 ...

  12. Gauss law constraints on Debye–Hückel screening

    Indian Academy of Sciences (India)

    We demand that the Gauss law at the edge must be obeyed by the electric potential () generated within a neutral plasma/electrolyte of strictly finite size by the introduction of a test charge b. Our proposal has the nice features that total ionic numbers are conserved, the point-Coulomb behaviour of () is guaranteed at ...

  13. Time and Frequency Activities at NICT, Japan

    Science.gov (United States)

    2009-11-01

    The NITE (National Institute of Technology and Evaluation) provided an accreditation of ISO / IEC 17025 to NICT on 31 January 2003, and also provided...an accreditation of ISO / IEC 17025 for the frequency remote calibration system to NICT on 2 May 2006; the BMC of the system is 5 × 10 -14 since

  14. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    A numerical model to simulate moisture flow through unsaturated zones is developed using the finite element method, and is validated by comparing the model results with those available in the literature. The sensitivities of different processes such as gravity drainage and infiltration to the variations in the unsaturated soil ...

  15. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The real and imaginary parts ( ε 1 and ε 2 ) of the complex dielectric constant () of sand, silt and clay with varied moisture content have been determined experimentally under laboratory conditions at 9.967 GHz. using infinite sample method. The values of ( ε 1 ) and ( ε 2 ) first increase slowly with moisture content upto a ...

  16. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... preformed cluster model (PCM). pp 623-638 Research Articles. Design and fabrication of a time-of-flight spectrometer for studies of multiple ionization of gases by charged particle impact .... pp 703-711 Brief Reports. Current correlation functions of ideal Fermi gas at finite temperature · R P Kaur K Tankeshwar K N Pathak.

  17. Distributed automata in an assumption-commitment framework

    Indian Academy of Sciences (India)

    We propose a class of finite state systems of synchronizing distributed processes, where processes make assumptions at local states about the state of other processes in the system. This constrains the global states of the system to those where assumptions made by a process about another are compatible with the ...

  18. Sharp asymptotics for stochastic dynamics with parallel updating rule

    NARCIS (Netherlands)

    Nardi, F.R.; Spitoni, C.

    2012-01-01

    In this paper we study the metastability problem for a stochastic dynamics with a parallel updating rule; in particular we consider a ¿nite volume Probabilistic Cellular Automaton (PCA) in a small external ¿eld at low temperature regime. We are interested in the nucleation of the system, i.e., the

  19. Monetary transmission, asset prices, and the business cycle indicator in Germany

    NARCIS (Netherlands)

    Sterken, Elmer

    2003-01-01

    In this paper I derive a complete characterization for the equilibria that may arise in a binary choice interaction model with a ?nite number of interacting agents. In particular, the correspondence between the interaction strength, the number of agents and the set of equilibria is derived.

  20. Does SMS Text Messaging Help or Harm Adults' Knowledge of Standard Spelling?

    Science.gov (United States)

    Powell, D.; Dixon, M.

    2011-01-01

    The recent increase in short messaging system (SMS) text messaging, often using abbreviated, non-conventional "textisms" (e.g. "2nite"), in school-aged children has raised fears of negative consequences of such technology for literacy. The current research used a paradigm developed by Dixon and Kaminska, who showed that exposure to phonetically…

  1. Point vortex modelling of the wake dynamics behind asymmetric vortex generator arrays

    NARCIS (Netherlands)

    Baldacchino, D.; Simao Ferreira, C.; Ragni, D.; van Bussel, G.J.W.

    2016-01-01

    In this work, we present a simple inviscid point vortex model to study the dynamics of asymmetric vortex rows, as might appear behind misaligned vortex generator vanes. Starting from the existing solution of the in_nite vortex cascade, a numerical model of four base-vortices is chosen to represent

  2. Aero-elastic Stability Analysis for Large-Scale Wind Turbines

    NARCIS (Netherlands)

    Meng, F.

    2011-01-01

    Nowadays, many modern countries are relying heavily on non-renewable resources. One common example of non-renewable resources is fossil fuel. Non-renewable resources are ?nite resources that will eventually dwindle, becoming too expensive or too environmentally damaging to retrieve. In contrast,

  3. Untitled

    Indian Academy of Sciences (India)

    where the Superscripts p, k and c represent the parallel composite membrane, kaoli- nite clay membrane element and crysotile clay membrane element. In view of the validity of the linear phenomenological equation (2) for the parallel composite clay membrane and its constituent clay membrane elements (figures 2 and 3) ...

  4. The divergence theorem for unbounded vector fields

    OpenAIRE

    De Pauw, Thierry; Pfeffer, Washek F.

    2007-01-01

    In the context of Lebesgue integration, we derive the divergence theorem for unbounded vector. elds that can have singularities at every point of a compact set whose Minkowski content of codimension greater than two is. nite. The resulting integration by parts theorem is applied to removable sets of holomorphic and harmonic functions.

  5. Case report

    African Journals Online (AJOL)

    abp

    28 juin 2017 ... Key words: Kikuchi-Fujimoto disease, histiocytic necrotizing lymphadenitis, adenopathies. Introduction. La maladie de Kikuchi-Fujimoto (KF) ou lymphadénite histiocytaire nécrosante est une affection ganglionnaire bénigne, décrite pour la première fois en 1972 au japon par Kikuchi et Fujimoto. Elle touche.

  6. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The experience of developing finite element models acceptable as per ISO 13232 standards has been described. The variation in dummy head accelerations on ... Author Affiliations. A Chawla1 S Mukherjee1. Transportation Research and Injury Prevention Program, Indian Institute of Technology Delhi, New Delhi 110 016 ...

  7. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. K K Vaze. Articles written in Sadhana. Volume 36 Issue 2 April 2011 pp 181-192. Numerical simulation with finite element and artificial neural network of ball indentation for mechanical property estimation · Kamal Sharma Vivek Bhasin K K Vaze A K ghosh · More Details Abstract Fulltext PDF.

  8. Permian Triassic palynofloral transition in Chintalapudi area ...

    Indian Academy of Sciences (India)

    Palynoassemblage-IV (Group II) is characterized by high percentage of taeniate disaccates chiefly. Lunatisporites spp. .... to the age assignment and identification of dis- ..... us pollenites. Platy saccus. Sch eurin gip olle nites. Ib is porites. In ap ertu ro pollen ites ..... graphic classification based on microfloras, macrofloras,.

  9. Kaja Vunder kõndis kokaiinijoonel

    Index Scriptorium Estoniae

    1998-01-01

    Äsja St. Martins'i lõpetanud Andrew Groves'i show'st 'Cocaine Nites' lõppenud Londoni moenädalal. Eesti modell Kaja Vunder kandis 1000 zhiletiteradest valmistatud kleiti ning peeglikildudest näomaski

  10. 76 FR 12992 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

    Science.gov (United States)

    2011-03-09

    ... Walnut. Also including the 100 block of W Campbell, Edinburgh, 11000126 Toner Historic District, E Main... Burnham St, Lowell, 11000120 Hohman Avenue Commercial Historic District, Approx. 3 blocks lining Hohman..., Limestone, 11000099 TEXAS Bexar County Lerma's Nite Club, 1602-1612 N Zarzamora, San Antonio, 11000135 Light...

  11. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. Kamal Sharma. Articles written in Sadhana. Volume 36 Issue 2 April 2011 pp 181-192. Numerical simulation with finite element and artificial neural network of ball indentation for mechanical property estimation · Kamal Sharma Vivek Bhasin K K Vaze A K ghosh · More Details Abstract Fulltext PDF.

  12. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The anomaly between public perception of the rollover susceptibility and available crash data has been resolved through finite element (FE) simulation. The optimum configuration of the vehicle and seating arrangement for varying numbers of passengers was determined. The safety of occupants and pedestrians in impact ...

  13. Investigation of (3, 3) resonance effects on the properties of neutron ...

    Indian Academy of Sciences (India)

    Home; Journals; Pramana – Journal of Physics; Volume 76; Issue 4. Investigation of (3,3) resonance effects on the properties of neutron-rich double magic spherical finite nucleus, 132Sn, in the ground state and under compression. Mohammed H E Abu-Sei'leek. Volume 76 Issue 4 April 2011 pp 573-589 ...

  14. Digital simulation of chronoamperometry at a disk electrode under a flat polymer film containing an enzyme

    DEFF Research Database (Denmark)

    Britz, Dieter; Strutwolf, Jörg

    2015-01-01

    Current-time and steady state current behaviour were simulated for an ultramicrodisk electrode (UMDE) inlaid flush with an insulating plane and overlaid by a flat film of polymer containing an enzyme, of various film thicknesses and essentially infinite extent. Steady state currents go through a maxim...

  15. Fast torque estimation of in-wheel parallel flux switching machines

    NARCIS (Netherlands)

    Ilhan, E.; Paulides, J.J.H.; Lomonova, E.

    2010-01-01

    Parallel ux switching machines (PFSM) come forward in automotive industry as a promising candidate for hybrid truck applications due to their high power density. Torque calculations, i.e cogging and electromagnetic, are important features of these machines, which require a ??nite element model (FEM)

  16. SWNT structure

    Indian Academy of Sciences (India)

    Using a tight-binding model and a transfer-matrix technique, we numerically investigate the effects of the coupling strength and the role of solitons on the electronic transmission through a system in which trans-polyacetylene (trans-PA) molecule is sandwiched between two semi-infinite single-walled carbon nanotubes ...

  17. Teletext Brings TV into the Computer Age.

    Science.gov (United States)

    Wollman, Jane

    1982-01-01

    Briefly reviews two teletext services being tested in Chicago--KEYFAX and NITE-OWL--and other teletext experiments. KEYFAX offers information on news, sports, weather/travel, and leisure, which can be selected and displayed on the screen of a home television set by punching code numbers on a remote-control device. (JJD)

  18. Metastability for Kawasaki dynamics at low temperature with two types of particles

    NARCIS (Netherlands)

    Hollander, den W.Th.F.; Nardi, F.R.; Troiani, A.

    2011-01-01

    This is the fi??rst in a series of three papers in which we study a two-dimensional lattice gas consisting of two types of particles subject to Kawasaki dynamics at low temperature in a large fi??nite box with an open boundary. Each pair of particles occupying neighboring sites has a negative

  19. Kawasaki dynamics with two types of particles : critical droplets

    NARCIS (Netherlands)

    Hollander, den W.Th.F.; Nardi, F.R.; Troiani, A.

    2012-01-01

    This is the third in a series of three papers in which we study a two-dimensional lattice gas consisting of two types of particles subject to Kawasaki dynamics at low temperature in a large ¿nite box with an open boundary. Each pair of particles occupying neighboring sites has a negative binding

  20. Numerical Methods for Nonlinear PDEs in Finance

    DEFF Research Database (Denmark)

    Mashayekhi, Sima

    Nonlinear Black-Scholes equations arise from considering parameters such as feedback and illiquid markets eects or large investor preferences, volatile portfolio and nontrivial transaction costs into option pricing models to have more accurate option price. Here some nite dierence schemes have be...

  1. Four essays in quantitative finance

    DEFF Research Database (Denmark)

    Karlsmark, Morten

    This thesis deals with derivatives, the pricing of them and the eect they can have on nancial markets. In the SABR model we develop a new expansion for call prices and a fast arbitrage free pricing scheme that uses a one step implicit nite dierence scheme. Next we consider perpetual claims. We su...

  2. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The effect of depression and protrusion of vertical walls and dielectric filling on electromagnetic propagation through -band rectangular waveguides is studied using the finite element method. The effect of these deformations and dielectric filling on TE10, TE20 mode cutoff frequencies and passband is studied. The results ...

  3. Numerical dissipation and dispersion of the homogenenous and complete flux schemes

    NARCIS (Netherlands)

    Thije Boonkkamp, ten J.H.M.; Anthonissen, M.J.H.

    2014-01-01

    We analyse numerical dissipation and dispersion of the homogeneous ¿ux (HF) and complete ¿ux (CF) schemes, ¿nite volume methods introduced in [1]. To that purpose we derive the modi¿ed equation of both schemes. We show that the HF scheme suffers from numerical diffusion for dominant advection, which

  4. The complete flux scheme in cylindrical coordinates

    NARCIS (Netherlands)

    Anthonissen, M.J.H.; Thije Boonkkamp, ten J.H.M.

    2014-01-01

    We consider the complete ¿ux (CF) scheme, a ¿nite volume method (FVM) presented in [1]. CF is based on an integral representation for the ¿uxes, found by solving a local boundary value problem that includes the source term. It performs well (second order accuracy) for both diffusion and advection

  5. Static deformation due to a long buried dip-slip fault in an isotropic

    Indian Academy of Sciences (India)

    Closed-form analytical expressions for the displacements and the stresses at any point of a two-phase medium consisting of a homogeneous, isotropic, perfectly elastic half-space in welded contact with a homogeneous, orthotropic, perfectly elastic half-space due to a dip-slip fault of finite width located at an arbitrary ...

  6. MFE revisited : part 1: adaptive grid-generation using the heat equation

    NARCIS (Netherlands)

    Zegeling, P.A.

    1996-01-01

    In this paper the moving-nite-element method (MFE) is used to solve the heat equation, with an articial time component, to give a non-uniform (steady-state) grid that is adapted to a given prole. It is known from theory and experiments that MFE, applied to parabolic PDEs, gives adaptive grids which

  7. Electron entanglement near a superconductor and Bell inequalities

    Indian Academy of Sciences (India)

    In the case of energy filters, Bell-inequality checks constitute a definite probe of entanglement. We formulate Bell-type inequalities in terms of current–current cross-correlations associated with contacts with varying magnetization orientations. We find maximal violation (as in photons) when a superconductor is the particle ...

  8. Using machine learning to speed up manual image annotation: application to a 3D imaging protocol for measuring single cell gene expression in the developing C. elegans embryo

    Directory of Open Access Journals (Sweden)

    Waterston Robert H

    2010-02-01

    Full Text Available Abstract Background Image analysis is an essential component in many biological experiments that study gene expression, cell cycle progression, and protein localization. A protocol for tracking the expression of individual C. elegans genes was developed that collects image samples of a developing embryo by 3-D time lapse microscopy. In this protocol, a program called StarryNite performs the automatic recognition of fluorescently labeled cells and traces their lineage. However, due to the amount of noise present in the data and due to the challenges introduced by increasing number of cells in later stages of development, this program is not error free. In the current version, the error correction (i.e., editing is performed manually using a graphical interface tool named AceTree, which is specifically developed for this task. For a single experiment, this manual annotation task takes several hours. Results In this paper, we reduce the time required to correct errors made by StarryNite. We target one of the most frequent error types (movements annotated as divisions and train a support vector machine (SVM classifier to decide whether a division call made by StarryNite is correct or not. We show, via cross-validation experiments on several benchmark data sets, that the SVM successfully identifies this type of error significantly. A new version of StarryNite that includes the trained SVM classifier is available at http://starrynite.sourceforge.net. Conclusions We demonstrate the utility of a machine learning approach to error annotation for StarryNite. In the process, we also provide some general methodologies for developing and validating a classifier with respect to a given pattern recognition task.

  9. Defects annihilation behavior of neutron-irradiated SiC ceramics densified by liquid-phase-assisted method after post-irradiation annealing

    Directory of Open Access Journals (Sweden)

    Mohd Idzat Idris

    2016-12-01

    Full Text Available Numerous studies on the recovery behavior of neutron-irradiated high-purity SiC have shown that most of the defects present in it are annihilated by post-irradiation annealing, if the neutron fluence is less than 1×1026 n/m2 (>0.1MeV and the irradiation is performed at temperatures lower than 973K. However, the recovery behavior of SiC fabricated by the nanoinfiltrated and transient eutectic phase (NITE process is not well understood. In this study, the effects of secondary phases on the irradiation-related swelling and recovery behavior of monolithic NITE-SiC after post-irradiation annealing were studied. The NITE-SiC specimens were irradiated in the BR2 reactor at fluences of up to 2.0–2.5×1024 n/m2 (E>0.1MeV at 333–363K. This resulted in the specimens swelling up ∼1.3%, which is 0.1% higher than the increase seen in concurrently irradiated high-purity SiC. The recovery behaviors of the specimens after post-irradiation thermal annealing were examined using a precision dilatometer; the specimens were heated at temperatures of up to 1673K using a step-heating method. The recovery curves were analyzed using a first-order model, and the rate constants for each annealing step were obtained to determine the activation energy for volume recovery. The NITE-A specimen (containing 12 wt% sintering additives recovered completely after annealing at ∼1573K; however, it shrank because of the volatilization of the oxide phases at 1673K. The NITE-B specimen (containing 18wt% sintering additives did not recover fully, since the secondary phase (YAG was crystallized during the annealing process. The recovery mechanism of NITE-A SiC was based on the recombination of the C and Si Frenkel pairs, which were very closely sited or only slightly separated at temperatures lower than 1223K, as well as the recombination of the slightly separated C Frenkel pairs and the migration of C and Si interstitials at temperatures of 1223–1573K. That is to say, the

  10. Revealed smooth nontransitive preferences

    DEFF Research Database (Denmark)

    Keiding, Hans; Tvede, Mich

    2013-01-01

    In the present paper, we are concerned with the behavioural consequences of consumers having nontransitive preference relations. Data sets consist of finitely many observations of price vectors and consumption bundles. A preference relation rationalizes a data set provided that for every observed...... consumption bundle, all strictly preferred bundles are more expensive than the observed bundle. Our main result is that data sets can be rationalized by a smooth nontransitive preference relation if and only if prices can normalized such that the law of demand is satisfied. Market data sets consist of finitely...... many observations of price vectors, lists of individual incomes and aggregate demands. We apply our main result to characterize market data sets consistent with equilibrium behaviour of pure-exchange economies with smooth nontransitive consumers....

  11. SiC/SiC composites through transient eutectic-phase route for fusion applications

    International Nuclear Information System (INIS)

    Katoh, Y.; Kohyama, A.; Nozawa, T.; Sato, M.

    2004-01-01

    Factors that may limit attractiveness of silicon-carbide-based ceramic composites to fusion applications include thermal conductivity, applicable design stress, chemical compatibility, hermeticity, radiation stability and fabrication cost. A novel SiC/SiC composite, which has recently been developed through nano-infiltration and transient eutectic-phase (NITE) processing route, surpasses conventional materials in many of these properties. In this paper, the latest development, property evaluation and prospect of the NITE SiC/SiC composites are briefly reviewed. The topics range from fundamental aspects of process development to industrial process development. Elevated temperature strength, fracture behavior, and thermo-physical properties in various environments are summarized. Future directions of materials and application technology development are also discussed

  12. SiC/SiC fuel cladding R and D Project 'SCARLET': Status and future plan

    International Nuclear Information System (INIS)

    Kishimoto, Hirotatsu; Kohyama, Akira

    2015-01-01

    This paper provides the recent progress in SiC/SiC development towards early utilisation for LWRs based on NITE method. After the March 11 Disaster in East-Japan, ensuring safe technology for LWR became a top priority R and D in nuclear energy policy of Japan. Along this line, replacement of Zircaloy claddings with SiC/SiC based fuel cladding is becoming one of the most attractive options and a MEXT fund based project, SCARLET, and a METI fund based project have been launched as 5-year termed projects at Muroran Institute of Technology. These projects care for NITE process for making long SiC/SiC fuel pins and connecting technology integration. The SCARLET project also includes coolant compatibility and irradiation effect evaluations as LWR and LMFBR materials. The outline and the present status of the SCARLET project will be briefly introduced in the present paper. (authors)

  13. Soil moisture in relation to geologic structure and lithology, northern California

    Science.gov (United States)

    Rich, E. I. (Principal Investigator)

    1980-01-01

    The author has identified the following significant results. Structural features in the Norther California Coast Ranges are clearly discernable on Nite-IR images and some of the structural linears may results in an extension of known faults within the region. The Late Mesozoic marine sedimentary rocks along the western margin of the Sacramento Valley are clearly defined on the Nite-IR images and in a gross way individual layers of sandstone can be differentiated from shale. Late Pleistocene alluvial fans are clearly differentiated from second generation Holocene fans on the basis of tonal characteristics. Although the tonal characteristics change with the seasons, the differentiation of the two sets of fans is still possible.

  14. Freedom as Satisfaction?

    DEFF Research Database (Denmark)

    Rostbøll, Christian Fogh

    2004-01-01

    with harmony in one's entire volitional system, Frankfurt may solve the infi nite regress objection but he does so at the cost of ending up with a description of freedom, which comes very close to being identical to his own description of the wanton. Frankfurt's account leaves open the question of whether......This article is a critical assessment of Harry Frankfurt's hierarchical theory of freedom. It spells out and distinguishes several different and irreconcilable conceptions of freedom present in Frankfurt's work. I argue that Frankfurt is ambiguous in his early formulation as to what conception...... of freedom of the will the hierarchical theory builds on, an avoidability or a satisfaction conception. This ambiguity causes problems in his later attempts to respond to the objections of wantonness of second-order desires and of infi nite regress. With his more recent idea of freedom as being satisfi ed...

  15. A high-order finite-difference linear seakeeping solver tool for calculation of added resistance in waves

    DEFF Research Database (Denmark)

    Amini Afshar, Mostafa; Bingham, Harry B.; Read, Robert

    During recent years a computational strategy has been developed at the Technical University of Denmark for numerical simulation of water wave problems based on the high-order nite-dierence method, [2],[4]. These methods exhibit a linear scaling of the computational eort as the number of grid points...... increases. This understanding is being applied to develop a tool for predicting the added resistance (drift force) of ships in ocean waves. We expect that the optimal scaling properties of this solver will allow us to make a convincing demonstration of convergence of the added resistance calculations based...... on both near-eld and far-eld methods. The solver has been written inside a C++ library known as Overture [3], which can be used to solve partial dierential equations on overlapping grids based on the high-order nite-dierence method. The resulting code is able to solve, in the time domain, the linearised...

  16. Modelamiento y análisis de pequeña señal de un generador de inducción y un STATCOM conectados a un sistema de potencia

    Directory of Open Access Journals (Sweden)

    Carlos David Zuluaga Ríos

    2011-12-01

    Full Text Available This paper presents the modeling and small-signal analysis of an induction generator (IG and a static synchronous compensator (STATCOM connected to an inÞ nite bus bar, representing a power system, the IG is modeled as Þ fth-order system and is coupled to a STATCOM is studied as a model of Þ rst order. The dynamic behaviorwas simulated and compared using MATLAB/ Simulink, two conditions of disturbance: a variation in the torque of the machine and a variationin the inÞ nite bus bar voltage because of a failure at this point. The responses obtained by the software show that the compensator acts appropriately counteracting power and voltage variations. Significantly, it must add a stage of tuning parameters to improve the responses.

  17. The Scientific Enterprise

    Indian Academy of Sciences (India)

    user

    and the ¯niteness ofour experiences,w hat w e think w e know m ay not be the total ..... eventually die,and a new generation grow s up that is fam iliar w ith it". .... u p liftin g , p sy ch o lo g ica lly sa tisfy in g , cu ltu ra lly en rich in g , a n d q u ite ...

  18. Electrospun nylon fibers for the improvement of mechanical properties and for the control of degradation behaviour of poly(lactide)-based composites

    CSIR Research Space (South Africa)

    Neppalli, R

    2012-05-01

    Full Text Available to the Hosemann model29 that assumes the presence of lamellar stacks having an in�nite side dimension. This assumption takes into account a monodimensional electron density change along the normal direction to the lamellae. The intensity pro�le was evaluated... features was previously noted for polyethylene and polypropylene composites �lled with polyethylene-grafted multiwall CNTs and polypropylene-grafted CNTs, respectively.34,35 A clear relationship between lamellar features and mechanical properties...

  19. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. Özlem Çavdar. Articles written in Sadhana. Volume 35 Issue 3 June 2010 pp 341-354. Stochastic finite element analysis of long-span bridges with CFRP cables under earthquake ground motion · Özlem Çavdar Alemdar Bayraktar Süleyman Adanur Hasan Basri Başaǧa · More Details Abstract ...

  20. ON THE STABILIZATION OF THE LINEAR HYBRID SYSTEM STRUCTURE

    Directory of Open Access Journals (Sweden)

    Kirillov

    2014-11-01

    Full Text Available The linear control hybrid system, consisting of a fi- nite set of subsystems (modes having different dimensions, is considered. The moments of reset time are determined by some complementary function – evolutionary time. This function satisfies the special complementary ordinary differential equation. The mode stabilization problem is solved for some class of piecewise linear controls. The method of stabilization relies on the set of invariant planes, the existence of which is due to the special form of the hybrid system.

  1. Variational Multi-Scale method with spectral approximation of the sub-scales.

    KAUST Repository

    Dia, Ben Mansour

    2015-01-07

    A variational multi-scale method where the sub-grid scales are computed by spectral approximations is presented. It is based upon an extension of the spectral theorem to non necessarily self-adjoint elliptic operators that have an associated base of eigenfunctions which are orthonormal in weighted L2 spaces. We propose a feasible VMS-spectral method by truncation of this spectral expansion to a nite number of modes.

  2. Fulltext PDF

    Indian Academy of Sciences (India)

    Admin

    than one. T he sam e argum ent show s that the average value of Y 2 is also 5. 4 . G e n e ra lisa tio n. N ow see if you can establish the follow ing m ore general resu lt. L et X 1 and X 2 be two random quantities tak- ing ¯nitely m any values such that (i) both are alw ays greater than zero;(ii) the random vectors (X 1 , X 2 ) sat-.

  3. Meta-Analysis of Human Factors Engineering Studies Comparing Individual Differences, Practice Effects and Equipment Design Variations.

    Science.gov (United States)

    1985-02-21

    Approvoid foT public 90Ieleol, 2* . tJni7nited " - . - o . - ’--. * . -... . 1 UNCLASSIFIED S, E CURITY CLASSIFICATION OF THIS PAGE-" REPORT DOCUMENTATION...ACCESSION NO. 11. TITLE (Include Security Classification) . Veta -Analysis of Human Factors Engineering Studies Comparing Individual Differences, Practice...Background C Opportunity D Significance E History III. PHASE I FINAL REPORT A Literature Review B Formal Analysis C Results D Implications for Phase II IV

  4. T I Eldho

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. T I Eldho. Articles written in Sadhana. Volume 31 Issue 6 December 2006 pp 743-754. Hydrodynamic modelling of flow over a spillway using a two-dimensional finite volume-based numerical model · M R Bhajantri T I Eldho P B Deolalikar · More Details Abstract Fulltext PDF. Spillway flow, a ...

  5. HCMM: Soil moisture in relation to geologic structure and lithology, northern California. [Sacremento Valley

    Science.gov (United States)

    Rich, E. I. (Principal Investigator)

    1979-01-01

    The author has identified the following significant results. A preliminary analysis of the HCMM imagery of the project area indicated that locally some differentiation of lithologic units within the Northern Coast Range may be possible. Of significance, however, was a thermally cool linear area that appeared on the 30 May 1978 Nite-IR. This linear feature seemed to coincide with the Bear Mt. Fault and with the axis of the Chico Monocline along the eastern margin of the Sacramento Valley.

  6. Fulltext PDF

    Indian Academy of Sciences (India)

    A Curious Set of Numbers. Problem. Find the largest possible set PeN ('largest' in the set-theoretic sense) with the property that a num- ber is in P if and only if it is a sum of two distinct integers in P or a sum of two distinct integers not in P? Solution. Such sets exist, trivially, and there are infi- nitely many of them; any singleton ...

  7. t NGOUNOUNO', B. DÉRUELLE'

    African Journals Online (AJOL)

    RÉSUMÉ. Le Mont Cameroun (N 4095 m d'altitude) est un grand (50 km de long pour 35 km de large) volcan plio-quaternaire appartenant à la "Ligne chaude du Cameroun ". Des xénolites de wchrlites et de clinopyroxénites ont été découverts dans des dépôts pyroclastîiques de 1'un des 140 cônes du Mont. Cameroun ...

  8. Entropy, Topological Theories and Emergent Quantum Mechanics

    Directory of Open Access Journals (Sweden)

    D. Cabrera

    2017-02-01

    Full Text Available The classical thermostatics of equilibrium processes is shown to possess a quantum mechanical dual theory with a finite dimensional Hilbert space of quantum states. Specifically, the kernel of a certain Hamiltonian operator becomes the Hilbert space of quasistatic quantum mechanics. The relation of thermostatics to topological field theory is also discussed in the context of the approach of the emergence of quantum theory, where the concept of entropy plays a key role.

  9. Large eddy simulation/dynamic thickened flame modeling of a high Karlovitz number turbulent premixed jet flame (Supplementary material).

    Energy Technology Data Exchange (ETDEWEB)

    Han, Wang [Technical Univ. of Darmstadt (Germany); Wang, Haiou [Univ. of New South Wales, Sydney, NSW (Australia); Kuenne, Guido [Technical Univ. of Darmstadt (Germany); Hawkes, Evatt R. [Univ. of New South Wales, Sydney, NSW (Australia); Chen, Jacqueline H. [Sandia National Lab. (SNL-CA), Livermore, CA (United States); Janicka, Johannes [Technical Univ. of Darmstadt (Germany); Hasse, Christian [Technical Univ. of Darmstadt (Germany)

    2017-12-01

    This supplementary material complements the article and provides additional information to the chemical mechanism used in this work, boundary conditions for the LES con guration and table generation, comparisons of axial velocities, results from a LES/ nite-rate chemistry (FRC) approach, and results from the LES/DTF/SPF approach with a particular chemistry table that is generated using a single strained premixed amelet solution.

  10. In vitro colorimetric evaluation of the efficacy of home bleaching and over-the-counter bleaching products.

    Science.gov (United States)

    Dietschi, Didier; Benbachir, Nacer; Krejci, Ivo

    2010-06-01

    Various bleaching modalities are now offered to patients, either monitored by the dental office or self-directed, for which relative efficiency is unknown. The aim of this in vitro study was to evaluate the ability of bleaching products and protocols to lighten enamel and dentin. Bovine tooth specimens of standardized thickness (2.5 +/- 0.025 mm with similar dentin and enamel thickness) were prepared and stained with whole blood and hemolysate before being submitted to seven supervised or self-directed bleaching regimens: tray-based bleaching using 10% (Opalescence, Ultradent; Nite White, Discus Dental) or light-activated 30% (Metatray, Metatray) carbamide peroxide (CP); 6% (Zoom, Discus Dental) or 9% (TresWhite, Ultradent) hydrogen peroxide (HP); strips (Whitening Strips, Oral B-Rembrandt); and paint-on gel (Paint on Plus, Ivoclar Vivadent) containing 8.1% and 6% HP, respectively. Colorimetric measurements were performed on each specimen side, according to the CIE L*a*b* system, before and after staining, as well as after 5, 10, and the recommended number of bleaching applications. Color change after recommended number of applications (DEr) varied from 15.72 (Metatray) to 29.67 (Nite White) at enamel and 14.91 (Paint on Plus) to 41.43 (Nite White) at dentin side; Nite White (10% CP) and TresWhite (9% HP) were more effective than Metatray (30% CP) and Paint on Plus (6% HP) after 5 or the recommended number of applications. In this in vitro study based on bovine teeth, tray-based systems produced the faster and better bleaching effect, regardless of the product and concentration used, at both enamel and dentin sides.

  11. United States Air Force Summer Faculty Research Program. 1980 Program Management Report.

    Science.gov (United States)

    1980-10-01

    COIVERECP _,-NITED ARFORCE_~~ 14ME FINAL f4- RESEARC - PROGRAM, AAEETRPOT 6. PERFORMING ORG. REPORT NURE 7. AUTH s4 ) ’..---- 8. CONTRACT OR GRANT NUMBFR(si...Winkofsky Multiband Airborne Radio System (MFBARS) Operational Impact Study: A Marketing Perspective 85 Application of Risk Analysis In the Dr. George...OPERATIONAL IMPACT STUDY: A MARKETING PEHSPECTIVE by E.P. WINKOFSKY ABSTRACT In order to transition technological advancements, research laboratories

  12. Political Party Development in the Arab World | Page 2 | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Iraqi Communist Party [Arabic language]. Documents. í€ l'épreuve du gouvernement urbain, les transformations du Parti de la Justice et du développement au Maroc. Documents. Rassemblement yéménite pour la réforme (al-Islâh) : la difficile construction d'un projet d'alternance. Documents. Socialist Union of Popular ...

  13. The Performance of Antennas in Their Operational Environment

    Science.gov (United States)

    1983-09-01

    signal is X dB below the direct signal. The disavantage of this method is that the reflected signal magnitude depends on the directivity of the...necessarily state or reflect those of the I’nited States (Government thereof, and shall not be used for advertising or product en- dorsement...used for advertising or product en- dorsement purposes. NOMERICAL MODELLING METHODS FOR PREDICTING ANTENNA PERFORR/^NCE ON AIRCRAFT by Stanley J

  14. Fulltext PDF

    Indian Academy of Sciences (India)

    T he A C M T uring A w ard for 2007 w as aw arded to. C larke, E m erson and Sifakis for their invention of m odel-checking, an autom ated technique for verifying ¯nite-state com puting system s. In this article, w e d escrib e th e cen tral id eas u n d erlyin g their approach. 1 . In tro d u ctio n. E ach year, the A ssociation for C ...

  15. SIMULATION OF THE BEHAVIOR OF THE WATER TABLE IN A COASTAL AQUIFER SYSTEM FINITE ELEMENT

    Directory of Open Access Journals (Sweden)

    Luis Lara Romero

    2016-06-01

    Full Text Available This paper presents the application of Galerkin method to discretize the model equation of groundwater ow in a conned aquifer semipermeable with tidal boundary conditions on one of its borders, the other borders remain constant. For the simulations was generated a numerical program, Ground Water Finite Element Method, which implements the method of nite elements with triangular elements with three nodes and a degree of freedom per node.

  16. Magnetization curves for general cylindrical samples in a transverse ...

    Indian Academy of Sciences (India)

    The method uses the technique of conformal mapping to express the sample surface and the flux-fronts in terms of a set of coefficients that depend on a parameter. The flux-fronts are to be determined by solving a system of nonlinear ordinary differential equations for the coefficients. Retaining only a certain finite number of ...

  17. Irradiation project of SiC/SiC fuel pin 'INSPIRE': Status and future plan

    International Nuclear Information System (INIS)

    Kohyama, Akira; Kishimoto, Hirotatsu

    2015-01-01

    After the March 11 Disaster in East-Japan, Research and Development towards Ensuring Nuclear Safety Enhancement for LWR becomes a top priority R and D in nuclear energy policy of Japan. The role of high temperature non-metallic materials, such as SiC/SiC, is becoming important for the advanced nuclear reactor systems. SiC fibre reinforced SiC composite has been recognised to be the most attractive option for the future, now, METI fund based project, INSPIRE, has been launched as 5-year termed project at OASIS in Muroran Institute of Technology aiming at early realisation of this system. INSPIRE is the irradiation project of SiC/SiC fuel pins aiming to accumulate material, thermal, irradiation effect data of NITE-SiC/SiC in BWR environment. Nuclear fuel inserted SiC/SiC fuel pins are planned to be installed in the Halden reactor. The project includes preparing the NITE-SiC/SiC tubes, joining of end caps, preparation of rigs to control the irradiation environment to BWR condition and the instruments to measure the condition of rigs and pins in operation. Also, basic neutron irradiation data will be accumulated by SiC/SiC coupon samples currently under irradiation in BR2. The output from this project may present the potentiality of NITE-SiC/SiC fuel cladding with the first stage fuel-cladding interaction. (authors)

  18. Photoionization cross-section of donor impurities in spherical GaAs quantum dots: hydrostatic pressure effects

    International Nuclear Information System (INIS)

    Correa, J.D.; Duque, C.A.; Porras-Montenegro, N.

    2004-01-01

    Full text: Using a variational procedure for a hydrogenic donor-impurity we have calculated the photoionization cross-section in spherical GaAs quantum dots. We discuss the dependence on the photoionization cross-section for hydrogenic donor impurity in in nite and nite barrier quantum dots as a function of the size of the dot, impurity position, polarization of the photon, applied hydrostatic pressure, and normalized photon energy. For the nite case, calculations for the pressure effects are both in direct and indirect GaAsAl gap regime. We have considered the different transition rules that depend of the impurity position and photon polarization. Calculations are presented for impurity on-center, and o -center in the spherical quantum dots. We found that the photoionization cross-section increases with the applied hydrostatic pressure both for on-center and o - center impurities. The photoionization cross-section increases or decreases depending of the impurity position, photon polarization, and radius of dots. Also we have showed that the photoionization cross-section decreases as the normalized photon energy increases. The results we have obtained show that the photoionization cross- section is strongly a effected by the quantum dot size, and the position of the impurity. The measurement of photoionization in such systems would be of great interest in understanding the optical properties of carriers in quantum dots. (author)

  19. Mineral transformations associated with goethite reduction by Methanosarcina barkeri

    Science.gov (United States)

    Liu, D.; Wang, Hongfang; Dong, H.; Qiu, X.; Dong, X.; Cravotta, C.A.

    2011-01-01

    To investigate the interaction between methanogens and iron-containing minerals in anoxic environments, we conducted batch culture experiments with Methanosarcina barkeri in a phosphate-buffered basal medium (PBBM) to bioreduce structural Fe(III) in goethite with hydrogen as the sole substrate. Fe(II) and methane concentrations were monitored over the course of the bioreduction experiments with wet chemistry and gas chromatography, respectively. Subsequent mineralogical changes were characterized with X-ray diffraction (XRD) and scanning electron microscopy (SEM). In the presence of an electron shuttle anthraquinone-2,6-disulfonate (AQDS), 30% Fe(III) in goethite (weight basis) was reduced to Fe(II). In contrast, only 2% Fe(III) (weight basis) was bioreduced in the absence of AQDS. Most of the bioproduced Fe(II) was incorporated into secondary minerals including dufr??nite and vivianite. Our data implied a dufr??nite-vivianite transformation mechanism where a metastable dufr??nite transformed to a more stable vivianite over extended time in anaerobic conditions. Methanogenesis was greatly inhibited by bioreduction of goethite Fe(III). These results have important implications for the methane flux associated with Fe(III) bioreduction and ferrous iron mineral precipitation in anaerobic soils and sediments. ?? 2011 Elsevier B.V.

  20. Accurate Locally Conservative Discretizations for Modeling Multiphase Flow in Porous Media on General Hexahedra Grids

    KAUST Repository

    Wheeler, M.F.

    2010-09-06

    For many years there have been formulations considered for modeling single phase ow on general hexahedra grids. These include the extended mixed nite element method, and families of mimetic nite di erence methods. In most of these schemes either no rate of convergence of the algorithm has been demonstrated both theoret- ically and computationally or a more complicated saddle point system needs to be solved for an accurate solution. Here we describe a multipoint ux mixed nite element (MFMFE) method [5, 2, 3]. This method is motivated from the multipoint ux approximation (MPFA) method [1]. The MFMFE method is locally conservative with continuous ux approximations and is a cell-centered scheme for the pressure. Compared to the MPFA method, the MFMFE has a variational formulation, since it can be viewed as a mixed nite element with special approximating spaces and quadrature rules. The framework allows han- dling of hexahedral grids with non-planar faces by applying trilinear mappings from physical elements to reference cubic elements. In addition, there are several multi- scale and multiphysics extensions such as the mortar mixed nite element method that allows the treatment of non-matching grids [4]. Extensions to the two-phase oil-water ow are considered. We reformulate the two- phase model in terms of total velocity, capillary velocity, water pressure, and water saturation. We choose water pressure and water saturation as primary variables. The total velocity is driven by the gradient of the water pressure and total mobility. Iterative coupling scheme is employed for the coupled system. This scheme allows treatments of di erent time scales for the water pressure and water saturation. In each time step, we rst solve the pressure equation using the MFMFE method; we then Center for Subsurface Modeling, The University of Texas at Austin, Austin, TX 78712; mfw@ices.utexas.edu. yCenter for Subsurface Modeling, The University of Texas at Austin, Austin, TX 78712; gxue

  1. Multi-Hadron Observables from Lattice Quantum Chromodynamics

    Energy Technology Data Exchange (ETDEWEB)

    Hansen, Maxwell [Univ. of Washington, Seattle, WA (United States)

    2014-01-01

    We describe formal work that relates the nite-volume spectrum in a quantum eld theory to scattering and decay amplitudes. This is of particular relevance to numerical calculations performed using Lattice Quantum Chromodynamics (LQCD). Correlators calculated using LQCD can only be determined on the Euclidean time axis. For this reason the standard method of determining scattering amplitudes via the Lehmann-Symanzik-Zimmermann reduction formula cannot be employed. By contrast, the nite-volume spectrum is directly accessible in LQCD calculations. Formalism for relating the spectrum to physical scattering observables is thus highly desirable. In this thesis we develop tools for extracting physical information from LQCD for four types of observables. First we analyze systems with multiple, strongly-coupled two-scalar channels. Here we accommodate both identical and nonidentical scalars, and in the latter case allow for degenerate as well as nondegenerate particle masses. Using relativistic eld theory, and summing to all orders in perturbation theory, we derive a result relating the nite-volume spectrum to the two-to-two scattering amplitudes of the coupled-channel theory. This generalizes the formalism of Martin L uscher for the case of single-channel scattering. Second we consider the weak decay of a single particle into multiple, coupled two-scalar channels. We show how the nite-volume matrix element extracted in LQCD is related to matrix elements of asymptotic two-particle states, and thus to decay amplitudes. This generalizes work by Laurent Lellouch and Martin L uscher. Third we extend the method for extracting matrix elements by considering currents which insert energy, momentum and angular momentum. This allows one to extract transition matrix elements and form factors from LQCD. Finally we look beyond two-particle systems to those with three-particles in asymptotic states. Working again to all orders in relativistic eld theory, we derive a relation between the

  2. Synthesis of single-phase L10-FeNi magnet powder by nitrogen insertion and topotactic extraction

    OpenAIRE

    Goto, Sho; Kura, Hiroaki; Watanabe, Eiji; Hayashi, Yasushi; Yanagihara, Hideto; Shimada, Yusuke; Mizuguchi, Masaki; Takanashi, Koki; Kita, Eiji

    2017-01-01

    Tetrataenite (L10-FeNi) is a promising candidate for use as a permanent magnet free of rare-earth elements because of its favorable properties. In this study, single-phase L10-FeNi powder with a high degree of order was synthesized through a new method, nitrogen insertion and topotactic extraction (NITE). In the method, FeNiN, which has the same ordered arrangement as L10-FeNi, is formed by nitriding A1-FeNi powder with ammonia gas. Subsequently, FeNiN is denitrided by topotactic reaction to ...

  3. Structural characterization of two new quaternary chalcogenides: CuCo{sub 2}InTe{sub 4} and CuNi{sub 2}InTe{sub 4}

    Energy Technology Data Exchange (ETDEWEB)

    Delgado, Gerzon E.; Grima-Gallardo, Pedro; Nieves, Luis, E-mail: gerzon@ula.ve [Universidad de Los Andes, Merida (Venezuela, Bolivarian Republic of); Cabrera, Humberto [Centro Multidisciplinario de Ciencias, Instituto Venezolano de Investigaciones Cientificas (IVIC), Merida (Venezuela, Bolivarian Republic of); Glenn, Jennifer R.; Aitken, Jennifer A. [Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA (United States)

    2016-11-15

    The crystal structure of the chalcogenide compounds CuCo{sub 2}InTe{sub 4} and CuNi{sub 2}InTe{sub 4} , two new members of the I-II{sub 2}-III-VI{sub 4} family, were characterized by Rietveld refinement using X-ray powder diffraction data. Both materials crystallize in the tetragonal space group I4-bar 2m (No. 121), Z = 2, with a stannite-type structure, with the binaries CoTe and NiTe as secondary phases. (author)

  4. Topology Optimization for Convection Problems

    DEFF Research Database (Denmark)

    Alexandersen, Joe

    2011-01-01

    This report deals with the topology optimization of convection problems.That is, the aim of the project is to develop, implement and examine topology optimization of purely thermal and coupled thermomechanical problems,when the design-dependent eects of convection are taken into consideration.......This is done by the use of a self-programmed FORTRAN-code, which builds on an existing 2D-plane thermomechanical nite element code implementing during the course `41525 FEM-Heavy'. The topology optimizationfeatures have been implemented from scratch, and allows the program to optimize elastostatic mechanical...

  5. Study of breakup mechanism of a loosely bound projectile in a region of Coulomb-breakup dominance

    Directory of Open Access Journals (Sweden)

    Uesaka T.

    2010-04-01

    Full Text Available A kinematically complete measurement of the deuteron elastic break reaction has been carried out at Ed = 140 MeV on 12C, 40Ca, 90Zr, and 208Pb targets in a wide angular range of θp , θn = 0° –8° for a detailed study of the reaction mechanism of loosely bound projectiles in kinematical regions of Coulomb-breakup dominance. A finite-range calculation of the post-form distorted-wave Born approximation is presented.

  6. SPLLIFT: Statically Analyzing Software Product Lines in Minutes instead of Years

    DEFF Research Database (Denmark)

    Bodden, Eric; Tolêdo, Társis; Ribeiro, Márcio

    2013-01-01

    IFDS framework for inter-procedural, finite, distributive, subset problems to an SPL-aware analysis formulated in the IDE framework, a well-known extension to IFDS. Using a full implementation based on Heros, Soot, CIDE and JavaBDD, we show that with SPLLIFT one can reuse IFDS-based analyses without...... changing a single line of code. Through experiments using three static analyses applied to four Java-based product lines, we were able to show that our approach produces correct results and outperforms the traditional approach by several orders of magnitude....

  7. The Consequences of Delaying Entrance into University

    DEFF Research Database (Denmark)

    Foley, Kelly; Groes, Fane

    Because the returns to education depend on the nite horizon of individuals' working lives, human capital models predict that if an individual is going to attend university, she should do so as soon as possible. Delaying university can also mean individuals have fewer years in which to accumulate...... post-schooling experience. In this paper, we use Danish administrative data to estimate the wage losses experienced by individuals who accumulate less post-schooling experience because they postponed entry into university following high school. All else equal, experience-related costs of delaying...

  8. Thermodynamics of the hot BIon

    DEFF Research Database (Denmark)

    Grignani, Gianluca; Harmark, Troels; Marini, Andrea

    2011-01-01

    We investigate the thermodynamics of the recently obtained nite temperature BIon solution of arXiv:1012.1494, focusing on two aspects. The first concerns comparison of the free energy of the three available phases for the finite temperature brane-antibrane wormhole configuration. Based on this we...... propose a heuristic picture for the dynamics of the phases that involves a critical temperature below which a stable phase exists. This stable phase is the finite temperature analogue of the thin throat branch of the extremal brane anti-brane wormhole configuration. The second aspect that we consider...

  9. Advanced Electronic Structure Calculations For Nanoelectronics Using Finite Element Bases and Effective Mass Theory.

    Energy Technology Data Exchange (ETDEWEB)

    Gamble, John King [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Nielsen, Erik [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Baczewski, Andrew David [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Moussa, Jonathan Edward [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Gao, Xujiao [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Salinger, Andrew G. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Muller, Richard P. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-07-01

    This paper describes our work over the past few years to use tools from quantum chemistry to describe electronic structure of nanoelectronic devices. These devices, dubbed "artificial atoms", comprise a few electrons, con ned by semiconductor heterostructures, impurities, and patterned electrodes, and are of intense interest due to potential applications in quantum information processing, quantum sensing, and extreme-scale classical logic. We detail two approaches we have employed: nite-element and Gaussian basis sets, exploring the interesting complications that arise when techniques that were intended to apply to atomic systems are instead used for artificial, solid-state devices.

  10. Modeling cavities exhibiting strong lateral confinement using open geometry Fourier modal method

    DEFF Research Database (Denmark)

    Häyrynen, Teppo; Gregersen, Niels

    2016-01-01

    We have developed a computationally efficient Fourier-Bessel expansion based open geometry formalism for modeling the optical properties of rotationally symmetric photonic nanostructures. The lateral computation domain is assumed infinite so that no artificial boundary conditions are needed. Instead,...... around a geometry specific dominant transverse wavenumber region. We will use the developed approach to investigate the Q factor and mode confinement in cavities where top DBR mirror has small rectangular defect confining the modes laterally on the defect region....

  11. MCTS Experiments on the Voronoi Game

    OpenAIRE

    Bouzy , Bruno; Métivier , Marc; Pellier , Damien

    2011-01-01

    International audience; Monte-Carlo Tree Search (MCTS) is a powerful tool in games with a finite branching factor. This paper describes an artificial player playing the Voronoi game, a game with an infi- nite branching factor. First, this paper shows how to use MCTS on a discretization of the Voronoi game, and the effects of en- hancements such as RAVE and Gaussian processes (GP). A first set of experimental results shows that MCTS with UCB+RAVE or with UCB+GP are first good solutions for pla...

  12. Submatrices of character tables and basic sets

    DEFF Research Database (Denmark)

    Bessenrodt, Christine; Olsson, Jørn Børling

    2012-01-01

    In this investigation of character tables of nite groups we study basic sets and associated representation theoretic data for complementary sets of conjugacy lasses. For the symmetric groups we nd unexpected properties of characters on restricted sets of conjugacy classes, like beautiful...... combinatorial determinant formulae for submatrices of the character table and Cartan matrices with respect to basic sets; we observe that similar phenomena occur for the transition matrices between power sum symmetric functions to bounded partitions and the k-Schur functions dened by Lapointe and Morse...

  13. SOLVING FRACTIONAL-ORDER COMPETITIVE LOTKA-VOLTERRA MODEL BY NSFD SCHEMES

    Directory of Open Access Journals (Sweden)

    S.ZIBAEI

    2016-12-01

    Full Text Available In this paper, we introduce fractional-order into a model competitive Lotka- Volterra prey-predator system. We will discuss the stability analysis of this fractional system. The non-standard nite difference (NSFD scheme is implemented to study the dynamic behaviors in the fractional-order Lotka-Volterra system. Proposed non-standard numerical scheme is compared with the forward Euler and fourth order Runge-Kutta methods. Numerical results show that the NSFD approach is easy and accurate for implementing when applied to fractional-order Lotka-Volterra model.

  14. Electroplating and characterization of cobalt-nickel-iron and nickel-iron for magnetic microsystems applications

    DEFF Research Database (Denmark)

    Rasmussen, Frank Engel; Ravnkilde, Jan Tue; Tang, Peter Torben

    2001-01-01

    The magnetic properties of pulse reverse (PR) electroplated CoNiFe and DC electroplated NiTe are presented. CoNiFe is a very promising material for magnetic microsystems due to the possibility of achieving a high saturation flux density (B-s) and a low coercivity (H-c). A new bath formulation has...... been developed, which by means of PR electroplating makes it possible to deposit high B-s CoNiFe with a low residual stress level. The magnetic properties have been determined using a new simple measurement setup that allows for wafer level characterization. The results have been validated...

  15. Turbulence studies in tokamak boundary plasmas with realistic divertor geometry

    International Nuclear Information System (INIS)

    Xu, X.Q.; Cohen, R.H.; Porter, G.D.; Rognlien, T.; Ryutov, D.D.; Myra, J.R.; D'Ippolito, D.A.; Moyer, R.; Groebner, R.J.

    2001-01-01

    Results are presented from the 3D nonlocal electromagnetic turbulence code BOUT and the linearized shooting code BAL for studies of turbulence in tokamak boundary plasmas and its relationship to the L-H transition, in a realistic divertor plasma geometry. The key results include: (1) the identification of the dominant resistive X-point mode in divertor geometry and (2) turbulence suppression in the L-H transition by shear in the ExB drift speed, ion diamagnetism and nite polarization. Based on the simulation results, a parameterization of the transport is given that includes the dependence on the relevant physical parameters. (author)

  16. Finite element modeling of the vocal folds with deformable interface tracking

    DEFF Research Database (Denmark)

    Granados Corsellas, Alba; Brunskog, Jonas; Misztal, Marek Krzysztof

    2014-01-01

    Continuous and prolonged use of the sp eaking voice may lead to functional sp eech disorders that are not apparent for voice clinicians from high-sp eed imaging of the vo cal folds' vibration. However, it is hyp othesized that time dep endent tissue prop erties provide some insight into the injury...... pro cess. To infer material parameters via an inverse optimization problem from recorded deformation, a self sustained theoretical mo del of the vo cal folds is needed. With this purp ose, a transversely isotropic three-dimensional nite element mo del is prop osed and investigated. Sp ecial attention...

  17. Behavior of fluorine 18 in neutron irradiated zeolites

    International Nuclear Information System (INIS)

    Estevez Lopez, D.R.

    1992-01-01

    The transformation of Li-exchanged H-Y zeolite has been investigated at 300, 550, 850 and 1050 Centigrade degree, formation of quartz structure in addition to an amorphous phase, was nited. The Li-aluminosilicate obtained was neutron irradiated and the chemical behavior of 18 F produced by the reaction sequence 6 Li (n, α) 3 H, 16 O ( 3 H, n) 18 F, was studied. The neutron irradiated material was purged with argon-hydron gas streams. It was found that the amount of released 18 F depends on the temperature used (Author)

  18. Symbolic Block Decomposition In Hexahedral Mesh Generation

    Directory of Open Access Journals (Sweden)

    Andrzej Adamek

    2005-01-01

    Full Text Available Hexahedral mesh generation for three-dimensional solid objects is often done in stages. Usually an object is first subdivided into simple-shaped subregions, which then are filled withhexahedral finite elements. This article presents an automatic subdividing method of polyhedron with planar faces. The subdivision is based on medial surface, axes and nodes of a solid.The main emphasis is put on creating a topology of subregions. Obtaining such a topologyinvolves defining a graph structure OMG which contains necessary information about medialsurface topology and object topology, followed by simple symbolic processing on it.

  19. SOME ASPECTS OF CONTEMPORARY ATHEISM AND ST. THOMAS AQUINA

    Directory of Open Access Journals (Sweden)

    CH. MOREROD

    2010-10-01

    Full Text Available Atheism has become fashionable in the recent years. It has diff erent forms, but in many cases starts from the presupposition that the only rational approach is the one of natural sciences. Believers have the duty to provide some answers to the atheists, also at the philosophical level. St. Thomas Aquinas off ers several arguments that can be explained in contemporary terms: the Universe needs a fi rst cause, which acts also through created causes; our desire for the infi nite is a sign of God; the order of the Universe suggests and organizer

  20. Computational stress and damage modelling for rolling contact fatigue

    DEFF Research Database (Denmark)

    Cerullo, Michele

    Rolling contact fatigue in radial roller bearings is studied by means of a 2D plane strain nite element program. The Dang Van multiaxial fatigue criterion is firstly used, in a macroscopic study modeling the bearing raceway, to investigate the region where fatigue cracks are more likely to nucleate...... and of compressive residual stresses are also analyzed. The stress history of a material point at the depth where the maximum Dang Van damage factor is reached is then recorded and used in a subsequent micro-mechanical analysis. The stress history is applied as periodic boundary conditions in a representative volume...

  1. The Problem of Evil: Theodicy and Argumentation

    Directory of Open Access Journals (Sweden)

    Shokhin Vladimir

    2016-09-01

    Full Text Available The paper departs from differing of two modalities of the attitude of the theistic reason to the problem of evil, i.e. building of universally valid explanatonary models (theodicy and apologies in the particular contexts (defense. The first one contradicts to the foundations of theistic world-view inasmuch as the biblical texts persuade one that causes of evil are particular and not universal and are far sometimes to be in the scope of a finite reason. In addition, logical problems with mutual correlation of the main theodicies are demonstrated. The modality of defense seems much more epistemically justified and actual, but here by no means all persuasive resources of controversy are used. The author suggests his own answers to some atheistic challenges, in the fi rst place unmasking double standards in the corresponding argumentation unavoidable for any wishful thinking and contraposes to the idea of multitude of gratuitous evils that of infinite profusion of undeserved boons.

  2. Neutron-Proton Mass Difference in Nuclear Matter and in Finite Nuclei and the Nolen-Schiffer Anomaly

    Directory of Open Access Journals (Sweden)

    Yakhshiev U.T.

    2010-04-01

    Full Text Available The neutron-proton mass difference in (isospin asymmetric nuclear matter and finite nuclei is studied in the framework of a medium-modified Skyrme model. The proposed effective Lagrangian incorporates both the medium influence of the surrounding nuclear environment on the single nucleon properties and an explicit isospin-breaking effect in the mesonic sector. Energy-dependent charged and neutral pion optical potentials in the s- and p-wave channels are included as well. The present approach predicts that the neutron-proton mass difference is mainly dictated by its strong part and that it markedly decreases in neutron matter. Furthermore, the possible interplay between the effective nucleon mass in finite nuclei and the Nolen-Schiffer anomaly is discussed. In particular, we find that a correct description of the properties of mirror nuclei leads to a stringent restriction of possible modifications of the nucleon’s effective mass in nuclei.

  3. The effect of bleaching agents on the microhardness of dental aesthetic restorative materials.

    Science.gov (United States)

    Türker, S B; Biskin, T

    2002-07-01

    This study investigated the effects of three home bleaching agents on the microhardness of various dental aesthetic restorative materials. The restorative materials were: feldspatic porcelain, microfilled composite resin and light-cured modified glass-ionomer cement and the bleaching agents Nite-White (16% carbamide peroxide), Opalescence (10% carbamide peroxide and carbapol jel) and Rembrandt (10% carbamide peroxide jel). A total of 90 restorative material samples were prepared 1 cm diameter and 6 mm thick and kept in distilled water for 24 h before commencing bleaching which was carried out for 8 h day-1 for 4 weeks. Microhardness measurements were then made using a Tukon tester. Statistically significant differences with respect to unbleached controls were found only for the feldspatic porcelain and microfilled composite resins (P light cured modified glass-ionomer cement. For the composite resin, whereas Nite-White increased its microhardness, the other bleaching agents decreased it. There were no significant differences between the bleaching agents for any of the restorative materials.

  4. A Clinical Study of the Effectiveness of Two Different 10% Carbamide Peroxide Bleaching Products: A 6-Month Followup

    Directory of Open Access Journals (Sweden)

    S. R. Grobler

    2011-01-01

    Full Text Available The purpose of this study was to evaluate the efficacy of two different 10% carbamide peroxide bleaching products just after treatment and after a 6-month follow-up period. Methods. Two 10% carbamide peroxide products (Opalescence PF and Nite White ACP were applied nightly for 14 days, according to the manufacturers' instructions. The color of teeth 11 and 21 of thirty-four subjects having A2 or darker teeth were measured with a spectrophotometer (L∗;a∗;b∗ before treatment, just after treatment (14 days and after 6 months. Results and Conclusions. Both products produced significant whitening of teeth with total color change (ΔEab∗ of approximately 5.20 units. There was a significant improvement in all 3 color coordinates (L*,a*, and b∗ for up to 6 months postbleaching (P<.05. Nite White showed a higher degree of relapse (27% than Opalescence (18% over the 6-month period. It is suggested that rebleaching after 6 months is not necessary.

  5. A COMPARISON OF DNA DAMAGE PROBES IN TWO HMEC LINES WITH X-IRRADIATION

    Energy Technology Data Exchange (ETDEWEB)

    Wisnewski, C.L.; Bjornstad, K.A.; Rosen, C.J.; Chang, P.Y.; Blakely, E.A.

    2007-01-01

    In this study, we investigated γH2AXser139 and 53BP1ser25, DNA damage pathway markers, to observe responses to radiation insult. Two Human Mammary Epithelial Cell (HMEC) lines were utilized to research the role of immortalization in DNA damage marker expression, HMEC HMT-3522 (S1) with an infi nite lifespan, and a subtype of HMEC 184 (184V) with a fi nite lifespan. Cells were irradiated with 50cGy X-rays, fi xed with 4% paraformaldehyde after 1 hour repair at 37°C, and processed through immunofl uorescence. Cells were visualized with a fl uorescent microscope and images were digitally captured using Image-Pro Plus software. The 184V irradiated cells exhibited a more positive punctate response within the nucleus for both DNA damage markers compared to the S1 irradiated cells. The dose and time course will be expanded in future studies to augment the preliminary data from this research. It is important to understand whether the process of transformation to immortalization compromises the DNA damage sensor and repair process proteins of HMECs in order to understand what is “normal” and to evaluate the usefulness of cell lines as experimental models.

  6. Permasalahan Iman : Kritik Atas Iman Dalam Filsafat Barat dan Tawaran Jawaban

    Directory of Open Access Journals (Sweden)

    Setyo Wibowo

    2013-06-01

    Full Text Available Abstract : Faith becomes problematic in our modern world. In the age of secularization and emancipation man masters the Nature with his growing reason and ever developing technology. This new situation brings with itself a discredit toward faith and religion. Without refusing the existence of God, Immanuel Kant declares that theology is a paralogism (a fallacious reasoning. Auguste Comte corners the religion in the realm of infantile age to be overcomed by the progress of science. Meanwhile Friedrich Nietzsche, from his own view, analyses that the phenomenon of fanatism in religion hides the uncontrallble “need to believe” typically found among the weaks.The central critique of Martin Heidegger toward ontotheological metaphysics shows that theology defined as science does not think. Man of faith has already all the answer before a question is posed, therefore he cannot truly pariticipate in the question of Being. This article tries to consider these objections against faith. As an answer, this article offers to acknowledge “the act of believe” as an universal disposition in man. Much wider than his need to possess knowledge, man is driven by a desire for the infinite. Faith resumes this human desire for infinite.Keywords : Emancipation, theology, metaphysics, faith, knowledge, way of belief, act of belief, passivity, infinite horizon, anthropological disposision.Abstrak : Iman menjadi problem di dunia modern. Gerak sekularisasi dan emansipasi manusia berkat perkembangan rasionya, yang tampak dalam penguasaan manusia atas alam lewat teknologi, membuat keyakinan pada Tuhan dianggap ketinggalan roh jaman. Meskipun tidak menolak Tuhan, Immanuel Kant menganggap bahwa teologi adalah sebuah paralogisme. Auguste Comte tegas-tegas mengatakan bahwa jaman teologi dan agama adalah era kekanak-kanakan yang harus dilampaui demi kemajuan jaman. Friedrich Nietzsche memperingatkan bahwa fanatisme dalam agama adalah tanda besarnya kebutuhan manusia

  7. Caractérisation de formations Miocène de la région de Taza pour des valorisations et exploitations industrielles Industrial value of the Miocene calcarenites in the region of Taza

    Directory of Open Access Journals (Sweden)

    Lahrach A.

    2012-09-01

    Full Text Available La valorisation de la formation Miocène dans la région de Taza, représentée par les calcarénites, a été menée selon deux axes ; tout d’abord une étude géologique, couplée à des études de terrain nous a permis d’évaluer l’épaisseur de la formation, une carte d’épaisseur a été dressée à cet effet. L’étude géotechnique de ces matériaux révèle que ces calcarénites ont des qualités intéressantes pour des utilisations industrielles. En effet, en se basant sur les différents tests de dureté (Los Angeles et Micro Duval, la résistance à la rupture et la porosité de nos quatre échantillons, une valeur ajoutée industrielle peut leur être attribuée dans beaucoup de domaines, comme: -Graves non traités pour couches de fondations pour les chaussées ou grave bitumeux de fondation; -Ajouts dans les bétons; -Roche marbrière et pierre de façade. En fin, sur la base de ces études géologiques et géotechniques, on peut considérer que les calcarénites de la région de Taza répondent à l’ensemble des critères d’une exploitation industrielle. The valuation of the Miocene formation in the Taza region, represented by calcarenites, was conducted according two axes; first geological survey, coupled with field studies allowed us to evaluate the thickness of the formation, a thickness map was derived from this purpose. The geotechnical study of these materials reveals that these calcarenites have interesting qualities for industrial uses. Indeed, based on the different hardness tests (Los Angeles and Micro Duval, the tensile strength and porosity of our four samples, an industrial added value can be attributed to them in many areas, such as: - Untreated Graves for layers of foundations for pavements or bituminous serious foundation; - Additions in concrete; - Roche marble and stone facade. Finally, on the basis of geological and geotechnical studies, we can consider that the calcarenites of the Taza region meet

  8. New weather depiction technology for night vision goggle (NVG) training: 3D virtual/augmented reality scene-weather-atmosphere-target simulation

    Science.gov (United States)

    Folaron, Michelle; Deacutis, Martin; Hegarty, Jennifer; Vollmerhausen, Richard; Schroeder, John; Colby, Frank P.

    2007-04-01

    US Navy and Marine Corps pilots receive Night Vision Goggle (NVG) training as part of their overall training to maintain the superiority of our forces. This training must incorporate realistic targets; backgrounds; and representative atmospheric and weather effects they may encounter under operational conditions. An approach for pilot NVG training is to use the Night Imaging and Threat Evaluation Laboratory (NITE Lab) concept. The NITE Labs utilize a 10' by 10' static terrain model equipped with both natural and cultural lighting that are used to demonstrate various illumination conditions, and visual phenomena which might be experienced when utilizing night vision goggles. With this technology, the military can safely, systematically, and reliably expose pilots to the large number of potentially dangerous environmental conditions that will be experienced in their NVG training flights. A previous SPIE presentation described our work for NAVAIR to add realistic atmospheric and weather effects to the NVG NITE Lab training facility using the NVG - WDT(Weather Depiction Technology) system (Colby, et al.). NVG -WDT consist of a high end multiprocessor server with weather simulation software, and several fixed and goggle mounted Heads Up Displays (HUDs). Atmospheric and weather effects are simulated using state-of-the-art computer codes such as the WRF (Weather Research μ Forecasting) model; and the US Air Force Research Laboratory MODTRAN radiative transport model. Imagery for a variety of natural and man-made obscurations (e.g. rain, clouds, snow, dust, smoke, chemical releases) are being calculated and injected into the scene observed through the NVG via the fixed and goggle mounted HUDs. This paper expands on the work described in the previous presentation and will describe the 3D Virtual/Augmented Reality Scene - Weather - Atmosphere - Target Simulation part of the NVG - WDT. The 3D virtual reality software is a complete simulation system to generate realistic

  9. On the advancements of conformal transformations and their associated symmetries in geometry and theoretical physics

    International Nuclear Information System (INIS)

    Kastrup, H.A.

    2008-08-01

    The historical developments of conformal transformations and symmetries are sketched: Their origin from stereographic projections of the globe, their blossoming in two dimensions within the eld of analytic complex functions, the generic role of transformations by reciprocal radii in dimensions higher than two and their linearization in terms of polyspherical coordinates by Darboux, Weyl's attempt to extend General Relativity, the slow rise of nite dimensional conformal transformations in classical eld theories and the problem of their interpretation, then since about 1970 the rapid spread of their acceptance for asymptotic and structural problems in quantum eld theories and beyond, up to the current AdS=CFT conjecture. The occasion for the present article: hundred years ago Bateman and Cunningham discovered the form invariance of Maxwell's equations for electromagnetism with respect to conformal space-time transformations. (orig.)

  10. Fission product thermodynamic data: technical progress report 1 January-30 June 1991

    International Nuclear Information System (INIS)

    Ball, R.G.J.; Yates, A.D.; Bowsher, B.R.; Dickinson, S.; Freemantle, N.E.; Day, T.; Ogden, J.S.

    1991-07-01

    Thermodynamic data are being determined for a number of compounds formed from specific fission products and reactor materials. The compounds selected for experimental study and critical assessment were chosen because their thermodynamic data were inadequate or did not exist, as assessed and recommended at a specialists' meeting. These data can be used in the appropriate computer code so that the speciation and transport properties of the fission products can be predicted during a severe reactor accident. Experimental studies have focussed on the vaporization of tellurium dioxide, caesium ruthenate, strontium borate and indium hydroxide. Critical evaluations have begun for a number of tellurides of importance in severe accident assessments, and preliminary analyses have been made of the Fe-Te, Ni-Te and Cr-Te systems. (author)

  11. Soliton-like solutions to the ordinary Schroedinger equation

    Energy Technology Data Exchange (ETDEWEB)

    Zamboni-Rached, Michel [Universidade Estadual de Campinas (DMO/FEEC/UNICAMP), Campinas, SP (Brazil). Fac. de Engenharia Eletrica e de Computacao. Dept. de Microondas e Optica; Recami, Erasmo, E-mail: recami@mi.infn.i [Universita Statale di Bergamo, Bergamo (Italy). Facolta di Ingegneria

    2011-07-01

    In recent times it has been paid attention to the fact that (linear) wave equations admit of soliton-like solutions, known as Localized Waves or Non-diffracting Waves, which propagate without distortion in one direction. Such Localized Solutions (existing also for K-G or Dirac equations) are a priori suitable, more than Gaussian's, for describing elementary particle motion. In this paper we show that, mutatis mutandis, Localized Solutions exist even for the ordinary Schroedinger equation within standard Quantum Mechanics; and we obtain both approximate and exact solutions, also setting forth for them particular examples. In the ideal case such solutions bear infinite energy, as well as plane or spherical waves: we show therefore how to obtain nite-energy solutions. At last, we briefly consider solutions for a particle moving in the presence of a potential. (author)

  12. I fondamenti biblici dell'etica in Tolstoj

    Directory of Open Access Journals (Sweden)

    Marco Scarpa

    2009-01-01

    Full Text Available Biblical Foundation of Tolstoy's Ethics This paper points out the connection between the ethical fundamentals in Tolstoyan thought and the exegetical choices with reference to the Bible he made while developing his philosophy. In particular, this work tries to verify the manner in which he founded his ethics on the Bible and how the biblical text is at the base of his moral general lines. It proceeds by identifying and showing the hermeneutical choices which led Tolstoy to declare fundamental ethical criteria for the renovation of the social background. The biblical text, interpreted according to these hermeneutical choices, leads to the formulation of quite defi nite behavioural rules. The latter appear eventually to have their foundation in the biblical text.

  13. Cryptographic Protocols Based on Root Extracting

    DEFF Research Database (Denmark)

    Koprowski, Maciej

    In this thesis we design new cryptographic protocols, whose security is based on the hardness of root extracting or more speci cally the RSA problem. First we study the problem of root extraction in nite Abelian groups, where the group order is unknown. This is a natural generalization of the...... complexity of root extraction, even if the algorithm can choose the "public exponent'' itself. In other words, both the standard and the strong RSA assumption are provably true w.r.t. generic algorithms. The results hold for arbitrary groups, so security w.r.t. generic attacks follows for any cryptographic...... groups. In all cases, security follows from a well de ned complexity assumption (the strong root assumption), without relying on random oracles. A smooth natural number has no big prime factors. The probability, that a random natural number not greater than x has all prime factors smaller than x1/u...

  14. A Generic High-performance GPU-based Library for PDE solvers

    DEFF Research Database (Denmark)

    Glimberg, Stefan Lemvig; Engsig-Karup, Allan Peter

    , the privilege of high-performance parallel computing is now in principle accessible for many scientific users, no matter their economic resources. Though being highly effective units, GPUs and parallel architectures in general, pose challenges for software developers to utilize their efficiency. Sequential...... legacy codes are not always easily parallelized and the time spent on conversion might not pay o in the end. We present a highly generic C++ library for fast assembling of partial differential equation (PDE) solvers, aiming at utilizing the computational resources of GPUs. The library requires a minimum...... of GPU computing knowledge, while still oering the possibility to customize user-specic solvers at kernel level if desired. Spatial dierential operators are based on matrix free exible order nite dierence approximations. These matrix free operators minimize both memory consumption and main memory access...

  15. Regularity of C*-algebras and central sequence algebras

    DEFF Research Database (Denmark)

    Christensen, Martin S.

    The main topic of this thesis is regularity properties of C*-algebras and how these regularity properties are re ected in their associated central sequence algebras. The thesis consists of an introduction followed by four papers [A], [B], [C], [D]. In [A], we show that for the class of simple...... Villadsen algebra of either the rst type with seed space a nite dimensional CW complex, or the second type, tensorial absorption of the Jiang-Su algebra is characterized by the absence of characters on the central sequence algebra. Additionally, in a joint appendix with Joan Bosa, we show that the Villadsen...... algebra of the second type with innite stable rank fails the corona factorization property. In [B], we consider the class of separable C*-algebras which do not admit characters on their central sequence algebra, and show that it has nice permanence properties. We also introduce a new divisibility property...

  16. STABILITY OF LINEAR SYSTEMS WITH MARKOVIAN JUMPS

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Mayta Guillermo

    2016-12-01

    Full Text Available In this work we will analyze the stability of linear systems governed by a Markov chain, this family is known in the specialized literature as linear systems with Markov jumps or by its acronyms in English MJLS as it is denoted in [1]. Linear systems governed by a Markov chain are dynamic systems with abrupt changes. We give some denitions of stability for the MJLS system, where these types of stability are equivalent as long as the state space of the Markov chain is nite. Finally we present a theorem that characterizes the stochastic stability by means of an equation of the Lyapunov type. The result is a generalization of a theorem in classical theory.

  17. Model Checking as Static Analysis

    DEFF Research Database (Denmark)

    Zhang, Fuyuan

    fairness problems can be encoded into ALFP as well. To deal with multi-valued model checking problems, we have proposed multivalued ALFP. A Moore Family result for multi-valued ALFP is also established, which ensures the existence and uniqueness of the least model. When the truth values in multi-valued...... of states satisfying a CTL formula can be characterized as the least model of ALFP clauses specifying this CTL formula. The existence of the least model of ALFP clauses is ensured by the Moore Family property of ALFP. Then, we take fairness assumptions in CTL into consideration and have shown that CTL...... ALFP constitute a nite distributive complete lattice, multi-valued ALFP can be reduced to two-valued ALFP. This result enables to implement a solver for multi-valued ALFP by reusing existing solvers for twovalued ALFP. Our ALFP-based technique developed for the two-valued CTL naturally generalizes...

  18. Yémen : le Sud sur la voie de la sécession ?

    Directory of Open Access Journals (Sweden)

    Franck Mermier

    2008-06-01

    Full Text Available Depuis la guerre inter-yéménite de 1994, le ressentiment des populations du sud du pays face à la mainmise du pouvoir de Sanaa est amplifié par la gravité de la crise économique, une inflation galopante et un chômage élevé. Cette situation de désespoir social est un terreau particulièrement fertile sur lequel croît la revendication séparatiste ou fédéraliste.Since Yemen's internal war of 1994, the growing resentment of the populations of the South towards the power stronghold of Sanaa has been aggravated by a severe economic crisis, a galloping inflation and a high rate of unemployment. All of which have contributed to a situation of social despair that is now fertile grounds for separatist or federalist claims.

  19. A security architecture for the ALICE grid services

    CERN Document Server

    Schreiner, Steffen; Buchmann, Johannes; Betev, Latchezar; Grigoras, Alina

    2012-01-01

    Globally distributed research cyberinfrastructures, like the ALICE Grid Services, need to provide traceability and accountability of operations and internal interactions. This document presents a new security architecture for the ALICE Grid Services, allowing to establish non-repudiation with respect to creatorship and ownership of Grid files and jobs. It is based on mutually authenticated and encrypted communication using X.509 Public Key Infrastructure and the Transport Layer Security (TLS) protocol. Introducing certified Grid file entries and signed Grid jobs by implementing a model of Mediated Definite Delegation it allows to establish long-term accountability concerning Grid jobs and files. Initial submissions as well as any alteration of Grid jobs are becoming verifiable and can be traced back to the originator. The architecture has been implemented as a prototype along with the development of a new central Grid middleware, called jAliEn.

  20. A trace-based model for multiparty contracts

    DEFF Research Database (Denmark)

    Hvitved, Tom; Klaedtke, Felix; Zălinescu, Eugen

    2012-01-01

    In this article we present a model for multiparty contracts in which contract conformance is defned abstractly as a property on traces. A key feature of our model is blame assignment, which means that for a given contract, every breach is attributed to a set of parties. We show that blame...... assignment is compositional by de¿ning contract conjunction and contract disjunction. Moreover, to specify real-world contracts, we introduce the contract speci¿cation language CSL with an operational semantics. We show that each CSL contract has a counterpart in our trace-based model and from...... the operational semantics we derive a run-time monitor. CSL overcomes limitations of previously proposed formalisms for specifying contracts by supporting: (history sensitive and conditional) commitments, parametrised contract templates, relative and absolute temporal constraints, potentially in¿nite contracts...

  1. Characterization of residual stresses in heat treated Ti-6Al-4V forgings by machining induced distortion

    Directory of Open Access Journals (Sweden)

    Werner E.

    2010-06-01

    Full Text Available To provide a solid base for improved material exploitation in dimensioning calculations it is necessary to determine the stress state in the part prior to service loading. In order to achieve higher material strength at elevated temperatures, the surface temperature gradient with respect to time has to be sufficiently high during heat treatment. This results in non-negligable residual stresses that can reduce the allowable load level upon which yielding occurs. For titanium alloys there are two common heat treatments, namely solution treatment and mill annealing. The latter one is the method of choice within the presented project. Mill annealing is utilized in order to significantly reduce the residual stresses in the parts without loosing much of the improved strength at elevated temperatures. Quantification of residual stresses is done by solving an inverse problem. From the measurement of distortion, induced by dividing the investigated part, the residual stress state can be calculated via analytical modeling or correlation with finite element models. To assure a minimum perturbation of the residual stress state during specimen production, dividing of the part is accomplished by electric discharge machining. The parts of interest are v-shaped prisms with a length of approximatly 450 mm and a thickness in the cross sectional area from about 20 mm to 45 mm. Figure 1(a shows the forged part and 1(b the dimensions of the cross section in millimeters as well as the material properties considered in the finite element model. The heat exchange between the part and the environment is modelled as heat transfer by convection superimposed with heat radiation. Since the parts are exposed to air during forging and heat treatment, the surface develops a strongly adhesive oxide layer, the so called alpha-case. After forging the parts are cooled in air and heat treated at a temperature of 720° C for a duration of 120 min. Subsequent air cooling and

  2. Finite Volumes Discretization of Topology Optimization Problems

    DEFF Research Database (Denmark)

    Evgrafov, Anton; Gregersen, Misha Marie; Sørensen, Mads Peter

    , FVMs represent a standard method of discretization within engineering communities dealing with computational uid dy- namics, transport, and convection-reaction problems. Among various avours of FVMs, cell based approaches, where all variables are associated only with cell centers, are particularly...... computations is done using nite element methods (FEMs). Despite some limited recent eorts [1, 2], we have only started to develop our understanding of the interplay between the control in the coecients and FVMs. Recent advances in discrete functional analysis allow us to analyze convergence of FVM...... of the induced parametrization of the design space that allows optimization algorithms to eciently explore it, and the ease of integration with existing computational codes in a variety of application areas, the simplicity and eciency of sensitivity analyses|all stemming from the use of the same grid throughout...

  3. Soliton-like solutions to the ordinary Schroedinger equation

    International Nuclear Information System (INIS)

    Zamboni-Rached, Michel; Recami, Erasmo

    2011-01-01

    In recent times it has been paid attention to the fact that (linear) wave equations admit of soliton-like solutions, known as Localized Waves or Non-diffracting Waves, which propagate without distortion in one direction. Such Localized Solutions (existing also for K-G or Dirac equations) are a priori suitable, more than Gaussian's, for describing elementary particle motion. In this paper we show that, mutatis mutandis, Localized Solutions exist even for the ordinary Schroedinger equation within standard Quantum Mechanics; and we obtain both approximate and exact solutions, also setting forth for them particular examples. In the ideal case such solutions bear infinite energy, as well as plane or spherical waves: we show therefore how to obtain nite-energy solutions. At last, we briefly consider solutions for a particle moving in the presence of a potential. (author)

  4. Two-flavor QCD correction to lepton magnetic moments at leading-order in the electromagnetic coupling

    Energy Technology Data Exchange (ETDEWEB)

    Feng, Xu [DESY, Zeuthen (Germany). NIC; Muenster Univ. (Germany). Inst. fuer Theoretische Physik; Jansen, Karl; Renner, Dru B. [DESY, Zeuthen (Germany). NIC; Petschlies, Marcus [Humboldt Univ. Berlin (Germany). Inst. fuer Physik

    2011-03-15

    We present a reliable nonperturbative calculation of the QCD correction, at leading-order in the electromagnetic coupling, to the anomalous magnetic moment of the electron, muon and tau leptons using two-flavor lattice QCD. We use multiple lattice spacings, multiple volumes and a broad range of quark masses to control the continuum, in nite-volume and chiral limits. We examine the impact of the commonly ignored disconnected diagrams and introduce a modi cation to the previously used method that results in a well-controlled lattice calculation. We obtain 1.513(43).10{sup -12}, 5.72(16).10{sup -8} and 2.650(54).10{sup -6} for the leading-order QCD correction to the anomalous magnetic moment of the electron, muon and tau respectively, each accurate to better than 3%. (orig.)

  5. Vingt ans après…

    Directory of Open Access Journals (Sweden)

    François Burgat

    2002-05-01

    Full Text Available Le dixième numéro des Chroniques Yéménites, publié vingt ans après la création du Centre Français d'Archéologie et de Sciences Sociales de Sanaa reflète des ambitions souvent exprimées: donner une chance aux jeunes chercheurs et couvrir un large éventail disciplinaire au service de l'affirmation de la vocation régionale du Centre. Depuis Sanaa ou Paris, chercheurs, doctorants ou stagiaires, de l'Ecole normale supérieure, de l'INALCO, de l'Université de Sanaa et de bon nombre d'institu...

  6. Extruder ile Pişirme Yönteminin Gıda Bileşim Öğeleri

    Directory of Open Access Journals (Sweden)

    Nevzat Artık

    2015-02-01

    Full Text Available Gıdalara uygulanan diğer ısıl işlemler gibi extruder ile pişirme yönteminde yararlı ve zararlı etkileri birlikte söz konusudur. Bu yöntemin yararlı etkisi; gıdanın özelliklerini olumsuz etkileyen faktörlerin elemine edilmesi; olumsuz etkisi ise, proteinler ile şekerler arasında oluşan Maillard tepkimesidir. Anılan tepkime ile proteinlerin besleyici niteliği azalmaktadır. Ayrıca ısıl işlem nedeniyle vitamin kayıpları söz konusu olmaktadır (Bjorck ve Asp, 1982.

  7. Nanostructured platinum-free electrocatalysts in alkaline direct alcohol fuel cells: catalyst design, principles and applications

    CSIR Research Space (South Africa)

    Ozoemena, Kenneth I

    2016-01-01

    Full Text Available in nanoparticles and semi-innite surfaces. Table 1Table 1 Typical calculated segregation energies (eV) for binary alloy nanoparticles Core Shell Ag Pd Ni Ir Co Fe Ag 0 �0.82 �2.29 �3.54 �2.15 �5.20 Pd 0.70 0 �1.09 �1.71 �1.29 �3.26 Ni 0.67 0.46 0 �0.67 �0.20 �2... compares the Wigner–Seitz radii and electron densities of somemetallic elements that are useful for making alloy catalysts for AFC systems. Table 2 clearly indicates that Pd, for example, has a stronger tendency to surface-segregate in Ni, Fe, or Fe...

  8. On the advancements of conformal transformations and their associated symmetries in geometry and theoretical physics

    Energy Technology Data Exchange (ETDEWEB)

    Kastrup, H A [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Theory Group

    2008-08-15

    The historical developments of conformal transformations and symmetries are sketched: Their origin from stereographic projections of the globe, their blossoming in two dimensions within the eld of analytic complex functions, the generic role of transformations by reciprocal radii in dimensions higher than two and their linearization in terms of polyspherical coordinates by Darboux, Weyl's attempt to extend General Relativity, the slow rise of nite dimensional conformal transformations in classical eld theories and the problem of their interpretation, then since about 1970 the rapid spread of their acceptance for asymptotic and structural problems in quantum eld theories and beyond, up to the current AdS=CFT conjecture. The occasion for the present article: hundred years ago Bateman and Cunningham discovered the form invariance of Maxwell's equations for electromagnetism with respect to conformal space-time transformations. (orig.)

  9. Calculation of Gilbert damping in ferromagnetic films

    Directory of Open Access Journals (Sweden)

    Edwards D. M.

    2013-01-01

    Full Text Available The Gilbert damping constant in the phenomenological Landau-Lifshitz-Gilbert equation which describes the dynamics of magnetization, is calculated for Fe, Co and Ni bulk ferromagnets, Co films and Co/Pd bilayers within a nine-band tight-binding model with spin-orbit coupling included. The calculational effciency is remarkably improved by introducing finite temperature into the electronic occupation factors and subsequent summation over the Matsubara frequencies. The calculated dependence of Gilbert damping constant on scattering rate for bulk Fe, Co and Ni is in good agreement with the results of previous ab initio calculations. Calculations are reported for ferromagnetic Co metallic films and Co/Pd bilayers. The dependence of the Gilbert damping constant on Co film thickness, for various scattering rates, is studied and compared with recent experiments.

  10. Aeroelastic analysis of large horizontal wind turbine baldes?

    Institute of Scientific and Technical Information of China (English)

    Di TANG; Zhiliang LU; Tongqing GUO

    2016-01-01

    A nonlinear aeroelastic analysis method for large horizontal wind turbines is described. A vortex wake method and a nonlinear ?nite element method (FEM) are coupled in the approach. The vortex wake method is used to predict wind turbine aero-dynamic loads of a wind turbine, and a three-dimensional (3D) shell model is built for the rotor. Average aerodynamic forces along the azimuth are applied to the structural model, and the nonlinear static aeroelastic behaviors are computed. The wind rotor modes are obtained at the static aeroelastic status by linearizing the coupled equations. The static aeroelastic performance and dynamic aeroelastic responses are calculated for the NH1500 wind turbine. The results show that structural geometrical nonlinearities signi?cantly reduce displacements and vibration amplitudes of the wind turbine blades. Therefore, structural geometrical nonlinearities cannot be neglected both in the static aeroelastic analysis and dynamic aeroelastic analysis.

  11. Testing and Inference in Nonlinear Cointegrating Vector Error Correction Models

    DEFF Research Database (Denmark)

    Kristensen, Dennis; Rahbæk, Anders

    In this paper, we consider a general class of vector error correction models which allow for asymmetric and non-linear error correction. We provide asymptotic results for (quasi-)maximum likelihood (QML) based estimators and tests. General hypothesis testing is considered, where testing...... of non-stationary non-linear time series models. Thus the paper provides a full asymptotic theory for estimators as well as standard and non-standard test statistics. The derived asymptotic results prove to be new compared to results found elsewhere in the literature due to the impact of the estimated...... symmetric non-linear error correction considered. A simulation study shows that the fi…nite sample properties of the bootstrapped tests are satisfactory with good size and power properties for reasonable sample sizes....

  12. On the advancements of conformal transformations and their associated symmetries in geometry and theoretical physics

    Energy Technology Data Exchange (ETDEWEB)

    Kastrup, H.A. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Theory Group

    2008-08-15

    The historical developments of conformal transformations and symmetries are sketched: Their origin from stereographic projections of the globe, their blossoming in two dimensions within the eld of analytic complex functions, the generic role of transformations by reciprocal radii in dimensions higher than two and their linearization in terms of polyspherical coordinates by Darboux, Weyl's attempt to extend General Relativity, the slow rise of nite dimensional conformal transformations in classical eld theories and the problem of their interpretation, then since about 1970 the rapid spread of their acceptance for asymptotic and structural problems in quantum eld theories and beyond, up to the current AdS=CFT conjecture. The occasion for the present article: hundred years ago Bateman and Cunningham discovered the form invariance of Maxwell's equations for electromagnetism with respect to conformal space-time transformations. (orig.)

  13. Effects of neutron irradiation on mechanical properties of silicon carbide composites fabricated by nano-infiltration and transient eutectic-phase process

    International Nuclear Information System (INIS)

    Koyanagi, T.; Hinoki, T.; Shimoda, K.; Ozawa, K.; Katoh, Y.

    2014-01-01

    Unidirectional silicon carbide (SiC)-fiber-reinforced SiC matrix (SiC/SiC) composites fabricated by a nano-infiltration and transient eutectic-phase (NITE) process were irradiated with neutrons at 830°C to 5.9 dpa, and at 1270°C to 5.8 dpa. The in-plane and trans-thickness tensile and the inter-laminar shear properties were evaluated at ambient temperature. The mechanical characteristics, including the quasi-ductile behavior, the proportional limit stress, and the ultimate tensile strength, were retained subsequent to irradiation. Analysis of the stress–strain hysteresis loop indicated the increased fiber/matrix interface friction and the decreased residual stresses. The inter-laminar shear strength exhibited a significant decrease following irradiation. (author)

  14. Electronic structures and stability of Ni/Bi2Te3 and Co/Bi2Te3 interfaces

    KAUST Repository

    Xiong, Ka; Wang, Weichao; Alshareef, Husam N.; Gupta, Rahul P.; White, John B.; Gnade, Bruce E.; Cho, Kyeongjae

    2010-01-01

    We investigate the electronic structures and stability for Ni/Bi 2Te3, NiTe/Bi2Te3, Co/Bi 2Te3 and CoTe2/Bi2Te3 interfaces by first-principles calculations. It is found that the surface termination strongly affects the band alignment. Ni and Co are found to form Ohmic contacts to Bi2Te3. The interface formation energy for Co/Bi2Te3 interfaces is much lower than that of Ni/Bi2Te3 interfaces. Furthermore, we found that NiTe on Bi2Te3 is more stable than Ni, while the formation energies for Co and CoTe2 on Bi2Te3 are comparable. © 2010 IOP Publishing Ltd.

  15. Karagöl (Yamanlar, İzmir'ün Sucul Coleoptera (Classis: Insecta Faunasına Katkılar.

    Directory of Open Access Journals (Sweden)

    Esat Tarık Topkara

    2015-12-01

    Full Text Available Bu çalışmada, Karagöl (Yamanlar-İzmir’den 18 Mayıs 2006 tarihinde yapılan örnekleme sonucu elde edilen sucul Coleoptera örnekleri değerlendirilmiştir. Sistematik açıdan yapılan değerlendirmede, Adephaga altfamilyasının Gyrinidae ve Dytiscidae familyalarına ait 4 tür, Polyphaga altfamilyasının Helophoridae, Hydrophilidae, Hydraenidae ve Dryopidae familyalarına ait 7 tür tespit edilmiştir. Tespit edilen türler bu gölün sucul Coleoptera faunası için yeni kayıt niteliğindedir

  16. Modeling and imaging of the vocal fold vibration for voice health

    DEFF Research Database (Denmark)

    Granados, Alba

    Identication of abnormalities on the vocal fold by means of dierent diagnostic methods is a key step to determine the cause or causes of a voice disorder, and subsequently give an adequate treatment. To this end, clinical investigations benet from accurate mathematical models for prediction......, analysis and inference. This thesis deals with biomechanical models of the vocal fold, specially of the collision, and laryngeal videoendoscopic analysis procedures suitable for the inference of the underlying vocal fold characteristics. The rst part of this research is devoted to frictionless contact...... modeling during asymmetric vocal fold vibration. The prediction problem is numerically addressed with a self-sustained three-dimensional nite element model of the vocal fold with position-based contact constraints. A novel contact detection mechanism is shown to successfully detect collision in asymmetric...

  17. Generátor konečných automatů z grafického popisu pro jazyk VHDL

    OpenAIRE

    Janyš, Martin

    2013-01-01

    Práce seznamuje čtenáře s možnostmi návrhu a tvorby konečných stavových automatů s důrazem na reprezentaci pomocí jazyka VHDL. Hlavním tématem je aplikace, která implementuje generátor VHDL kódu na základě gra fického popisu, který je možné v něm vytvořit. Popsány jsou klíčové oblasti aplikace. Zejména jejich použití a implementace, která realizuje samotný převod stavového diagramu do VHDL. The work introduces the reader to the possibilities of design and creation of nite state machines wi...

  18. Relativistic BCS-BEC Crossover at Quark Level

    Directory of Open Access Journals (Sweden)

    Zhuang P.

    2010-10-01

    Full Text Available The non-relativistic G0G formalism of BCS-BEC crossover at finite temperature is extended to relativistic fermion systems. The theory recovers the BCS mean field approximation at zero temperature and the non-relativistic results in a proper limit. For massive fermions, when the coupling strength increases, there exist two crossovers from the weak coupling BCS superfluid to the non-relativistic BEC state and then to the relativistic BEC state. For color superconductivity at moderate baryon density, the matter is in the BCS-BEC crossover region, and the behavior of the pseudogap is quite similar to that found in high temperature superconductors.

  19. Level set methods for detonation shock dynamics using high-order finite elements

    Energy Technology Data Exchange (ETDEWEB)

    Dobrev, V. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Grogan, F. C. [Univ. of California, San Diego, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kolev, T. V. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Rieben, R [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Tomov, V. Z. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-05-26

    Level set methods are a popular approach to modeling evolving interfaces. We present a level set ad- vection solver in two and three dimensions using the discontinuous Galerkin method with high-order nite elements. During evolution, the level set function is reinitialized to a signed distance function to maintain ac- curacy. Our approach leads to stable front propagation and convergence on high-order, curved, unstructured meshes. The ability of the solver to implicitly track moving fronts lends itself to a number of applications; in particular, we highlight applications to high-explosive (HE) burn and detonation shock dynamics (DSD). We provide results for two- and three-dimensional benchmark problems as well as applications to DSD.

  20. H -Supermagic Labeling on Shrubs Graph and Lm ⨀ Pn

    International Nuclear Information System (INIS)

    Ulfatimah, Risala; Roswitha, Mania; Kusmayadi, Tri Atmojo

    2017-01-01

    A nite simple graph G admits an H -covering if every edge of E ( G ) belongs to a subgraph of G isomorphic to H . We said the graph G = ( V , E ) that admits H -covering to be H -magic if there exists a bijection function f : V ( G ) ∪ E ( G ) → {1, 2, …, | V ( G )| + | E ( G )|} such that for each subgraph H ′ of G isomorphic to H , f ( H ′) = ∑ υ ∈ V ′ f ( υ ) + ∑ e ∈ E ′ f ( e ) = m ( f ) is constant. Furthermore, if f ( V ) = 1, 2, …, | V ( G )| then G is called H -supermagic. In this research we de ned S 2,2 -supermagic labeling on shrub graph Š ( m 1 , m 2 , …, m n ) and fish-supermagic labeling on L m ⨀ P n for m , n ≥ 2. (paper)

  1. Electronic structures and stability of Ni/Bi2Te3 and Co/Bi2Te3 interfaces

    International Nuclear Information System (INIS)

    Xiong Ka; Wang Weichao; Alshareef, Husam N; Gupta, Rahul P; Gnade, Bruce E; Cho, Kyeongjae; White, John B

    2010-01-01

    We investigate the electronic structures and stability for Ni/Bi 2 Te 3 , NiTe/Bi 2 Te 3 , Co/Bi 2 Te 3 and CoTe 2 /Bi 2 Te 3 interfaces by first-principles calculations. It is found that the surface termination strongly affects the band alignment. Ni and Co are found to form Ohmic contacts to Bi 2 Te 3 . The interface formation energy for Co/Bi 2 Te 3 interfaces is much lower than that of Ni/Bi 2 Te 3 interfaces. Furthermore, we found that NiTe on Bi 2 Te 3 is more stable than Ni, while the formation energies for Co and CoTe 2 on Bi 2 Te 3 are comparable.

  2. truncSP: An R Package for Estimation of Semi-Parametric Truncated Linear Regression Models

    Directory of Open Access Journals (Sweden)

    Maria Karlsson

    2014-05-01

    Full Text Available Problems with truncated data occur in many areas, complicating estimation and inference. Regarding linear regression models, the ordinary least squares estimator is inconsistent and biased for these types of data and is therefore unsuitable for use. Alternative estimators, designed for the estimation of truncated regression models, have been developed. This paper presents the R package truncSP. The package contains functions for the estimation of semi-parametric truncated linear regression models using three different estimators: the symmetrically trimmed least squares, quadratic mode, and left truncated estimators, all of which have been shown to have good asymptotic and ?nite sample properties. The package also provides functions for the analysis of the estimated models. Data from the environmental sciences are used to illustrate the functions in the package.

  3. Normal Incidence for Graded Index Surfaces

    Science.gov (United States)

    Khankhoje, Uday K.; Van Zyl, Jakob

    2011-01-01

    A plane wave is incident normally from vacuum (eta(sub 0) = 1) onto a smooth surface. The substrate has three layers; the top most layer has thickness d(sub 1) and permittivity epsilon(sub 1). The corresponding numbers for the next layer are d(sub 2); epsilon(sub 2), while the third layer which is semi-in nite has index eta(sub 3). The Hallikainen model [1] is used to relate volumetric soil moisture to the permittivity. Here, we consider the relation for the real part of the permittivity for a typical loam soil: acute epsilon(mv) = 2.8571 + 3.9678 x mv + 118:85 x mv(sup 2).

  4. Identification and non-integer order modelling of synchronous machines operating as generator

    Directory of Open Access Journals (Sweden)

    Szymon Racewicz

    2012-09-01

    Full Text Available This paper presents an original mathematical model of a synchronous generator using derivatives of fractional order. In contrast to classical models composed of a large number of R-L ladders, it comprises half-order impedances, which enable the accurate description of the electromagnetic induction phenomena in a wide frequency range, while minimizing the order and number of model parameters. The proposed model takes into account the skin eff ect in damper cage bars, the eff ects of eddy currents in rotor solid parts, and the saturation of the machine magnetic circuit. The half-order transfer functions used for modelling these phenomena were verifi ed by simulation of ferromagnetic sheet impedance using the fi nite elements method. The analysed machine’s parameters were identified on the basis of SSFR (StandStill Frequency Response characteristics measured on a gradually magnetised synchronous machine.

  5. Production Optimization of Oil Reservoirs

    DEFF Research Database (Denmark)

    Völcker, Carsten

    with emphasis on optimal control of water ooding with the use of smartwell technology. We have implemented immiscible ow of water and oil in isothermal reservoirs with isotropic heterogenous permeability elds. We use the method of lines for solution of the partial differential equation (PDE) system that governs...... the uid ow. We discretize the the two-phase ow model spatially using the nite volume method (FVM), and we use the two point ux approximation (TPFA) and the single-point upstream (SPU) scheme for computing the uxes. We propose a new formulation of the differential equation system that arise...... as a consequence of the spatial discretization of the two-phase ow model. Upon discretization in time, the proposed equation system ensures the mass conserving property of the two-phase ow model. For the solution of the spatially discretized two-phase ow model, we develop mass conserving explicit singly diagonally...

  6. FAILURE MECHANISMS OF THERMAL BARRIER COATINGS INTERNAL COMBUSTION ENGINES AND llMPROVEMENTS

    Directory of Open Access Journals (Sweden)

    ADNAN PARLAK

    2003-04-01

    Full Text Available MechanicaJ properties of high performance ceramics have been improved to the point where their use in heat engines is possible. The high temperature strength and low thermal expansion properties of bigh performance ceramics offer an advantage over metals in the development of non-water cooling engine. However, because bard environment in diesel engine combustion chamber, solving the problem of durabiUty of TBC is important. DurabiUty of thermal barrier coatings(TBC is liınited by two main failure mechanisms: Therınal expansion nlİsmatch betwcen bond coat and top coat and bond coat oxidation. Both of these can cause failure of the ceramic top coat. Developments of recent years sholv that bond coats \\Vith higher oxidation resistance tend to have better coating system cyclic lives

  7. Electronic structures and stability of Ni/Bi2Te3 and Co/Bi2Te3 interfaces

    KAUST Repository

    Xiong, Ka

    2010-03-04

    We investigate the electronic structures and stability for Ni/Bi 2Te3, NiTe/Bi2Te3, Co/Bi 2Te3 and CoTe2/Bi2Te3 interfaces by first-principles calculations. It is found that the surface termination strongly affects the band alignment. Ni and Co are found to form Ohmic contacts to Bi2Te3. The interface formation energy for Co/Bi2Te3 interfaces is much lower than that of Ni/Bi2Te3 interfaces. Furthermore, we found that NiTe on Bi2Te3 is more stable than Ni, while the formation energies for Co and CoTe2 on Bi2Te3 are comparable. © 2010 IOP Publishing Ltd.

  8. Virginia Henderson and her timeless writings.

    Science.gov (United States)

    Halloran, E J

    1996-01-01

    This paper provides a reflection on the written works of Miss Virginia Avenel Henderson. Miss Henderson is a nurse, a scientist, an artist and a quintessential human being--all traits which informed her written output. Nursing practice, research and education were all subjects of her extensive chronicle. The four-volume Nursing Studies Index is her contribution to nursing research. The Index was sandwiched between two revisions of Principles and Practice of Nursing (5th and 6th eds), the placement of which caused the Index to focus on practice and the Principles (6th ed.) to be based on research. The sixth edition of Principles, written with Gladys Nite and 17 contributors, is considered the most important single professional document written in the twentieth century. The book synthesizes nursing practice, education, theory and research in an age when many nurses are challenged by the seeming incongruity in these essential professional functions.

  9. Progress on matrix SiC processing and properties for fully ceramic microencapsulated fuel form

    International Nuclear Information System (INIS)

    Terrani, K.A.; Kiggans, J.O.; Silva, C.M.; Shih, C.; Katoh, Y.; Snead, L.L.

    2015-01-01

    The consolidation mechanism and resulting properties of the silicon carbide (SiC) matrix of fully ceramic microencapsulated (FCM) fuel form are discussed. The matrix is produced via the nano-infiltration transient eutectic-forming (NITE) process. Coefficient of thermal expansion, thermal conductivity, and strength characteristics of this SiC matrix have been characterized in the unirradiated state. An ad hoc methodology for estimation of thermal conductivity of the neutron-irradiated NITE–SiC matrix is also provided to aid fuel performance modeling efforts specific to this concept. Finally, specific processing methods developed for production of an optimal and reliable fuel form using this process are summarized. These various sections collectively report the progress made to date on production of optimal FCM fuel form to enable its application in light water and advanced reactors

  10. Analysis of Logic Programs Using Regular Tree Languages

    DEFF Research Database (Denmark)

    Gallagher, John Patrick

    2012-01-01

    The eld of nite tree automata provides fundamental notations and tools for reasoning about set of terms called regular or recognizable tree languages. We consider two kinds of analysis using regular tree languages, applied to logic programs. The rst approach is to try to discover automatically...... a tree automaton from a logic program, approximating its minimal Herbrand model. In this case the input for the analysis is a program, and the output is a tree automaton. The second approach is to expose or check properties of the program that can be expressed by a given tree automaton. The input...... to the analysis is a program and a tree automaton, and the output is an abstract model of the program. These two contrasting abstract interpretations can be used in a wide range of analysis and verication problems....

  11. Shaping Ottoman Rule in Yemen, 1872-1919

    Directory of Open Access Journals (Sweden)

    Patrice Chevalier

    2006-10-01

    Full Text Available En s’intéressant de près au fonctionnement du gouvernement ottoman lors de la seconde occupation du Yémen, entre 1872 et 1919, la thèse de Thomas Kühn vise non seulement à combler des lacunes concernant notre connaissance de cette période historique charnière, mais également à apporter un éclairage essentiel à la compréhension de l’histoire contemporaine yéménite, à travers une analyse approfondie de la nature spécifique du colonialisme ottoman et de ses impacts. Par cette étude, l’auteur amb...

  12. Expectation-maximization algorithms for learning a finite mixture of univariate survival time distributions from partially specified class values

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Youngrok [Iowa State Univ., Ames, IA (United States)

    2013-05-15

    Heterogeneity exists on a data set when samples from di erent classes are merged into the data set. Finite mixture models can be used to represent a survival time distribution on heterogeneous patient group by the proportions of each class and by the survival time distribution within each class as well. The heterogeneous data set cannot be explicitly decomposed to homogeneous subgroups unless all the samples are precisely labeled by their origin classes; such impossibility of decomposition is a barrier to overcome for estimating nite mixture models. The expectation-maximization (EM) algorithm has been used to obtain maximum likelihood estimates of nite mixture models by soft-decomposition of heterogeneous samples without labels for a subset or the entire set of data. In medical surveillance databases we can find partially labeled data, that is, while not completely unlabeled there is only imprecise information about class values. In this study we propose new EM algorithms that take advantages of using such partial labels, and thus incorporate more information than traditional EM algorithms. We particularly propose four variants of the EM algorithm named EM-OCML, EM-PCML, EM-HCML and EM-CPCML, each of which assumes a specific mechanism of missing class values. We conducted a simulation study on exponential survival trees with five classes and showed that the advantages of incorporating substantial amount of partially labeled data can be highly signi cant. We also showed model selection based on AIC values fairly works to select the best proposed algorithm on each specific data set. A case study on a real-world data set of gastric cancer provided by Surveillance, Epidemiology and End Results (SEER) program showed a superiority of EM-CPCML to not only the other proposed EM algorithms but also conventional supervised, unsupervised and semi-supervised learning algorithms.

  13. Effect of various tooth-whitening products on enamel microhardness.

    Science.gov (United States)

    Grobler, S R; Majeed, A; Moola, M H

    2009-11-01

    The purpose of this in vitro study was to evaluate the effect of various tooth-whitening products containing carbamide peroxide (CP) or hydrogen peroxide (HP), on enamel microhardness. Enamel blocks were exposed to: Nite White ACP 10% CP (Group 2, n=10); Yotuel Patient 10% CP (Group 3, n=10); Opalescence PF 10% CP (Group 4, n=10); Opalescence PF 20% CP (Group 5, n=10); Opalescence Treswhite Supreme 10% HP (Group 6, n=10); Yotuel 10 Minutes 30% CP (Group 7, n=10); Opalescence Quick 45% CP (Group 8, n=10), Yotuel Special 35% HP (Group 9, n=10), Opalescence Boost 38% HP (Group 10, n=10) according to the instructions of the manufacturers. The control (Group 1, n=10) was enamel blocks kept in artificial saliva at 37 degrees C without any treatment. The microhardness values were obtained before exposure and after a 14-day treatment period. Specimens were kept in artificial saliva at 37 degrees C between treatments. Data were analysed using Kruskal-Wallis one-way ANOVA and Tukey-Kramer Multiple Comparison Test. Indent marks on the enamel blocks were also examined under the Scanning Electron Microscope. All whitening products decreased enamel microhardness except group 10 but only Groups 2, 3, 4, 5 and 7 showed significant decrease in enamel microhardness as compared to the control group (p enamel. All products tested in this study decreased enamel microhardness except Opalescence Boost 38% HP. The products containing carbamide peroxide were more damaging to enamel because of the longer application times. Nite White ACP 10% CP showed the highest reduction in enamel microhardness as compared to other products tested.

  14. Effective Field Theories for Hot and Dense Matter

    Directory of Open Access Journals (Sweden)

    Blaschke D.

    2010-10-01

    Full Text Available The lecture is divided in two parts. The first one deals with an introduction to the physics of hot, dense many-particle systems in quantum field theory [1, 2]. The basics of the path integral approach to the partition function are explained for the example of chiral quark models. The QCD phase diagram is discussed in the meanfield approximation while QCD bound states in the medium are treated in the rainbow-ladder approximation (Gaussian fluctuations. Special emphasis is devoted to the discussion of the Mott effect, i.e. the transition of bound states to unbound, but resonant scattering states in the continnum under the influence of compression and heating of the system. Three examples are given: (1 the QCD model phase diagram with chiral symmetry ¨ restoration and color superconductivity [3], (2 the Schrodinger equation for heavy-quarkonia [4], and (2 Pions [5] as well as Kaons and D-mesons in the finite-temperature Bethe-Salpeter equation [6]. We discuss recent applications of this quantum field theoretical approach to hot and dense quark matter for a description of anomalous J/ψ supression in heavy-ion collisions [7] and for the structure and cooling of compact stars with quark matter interiors [8]. The second part provides a detailed introduction to the Polyakov-loop Nambu–Jona-Lasinio model [9] for thermodynamics and mesonic correlations [10] in the phase diagram of quark matter. Important relationships of low-energy QCD like the Gell-Mann–Oakes–Renner relation are generalized to finite temperatures. The effect of including the coupling to the Polyakov-loop potential on the phase diagram and mesonic correlations is discussed. An outlook is given to effects of nonlocality of the interactions [11] and of mesonic correlations in the medium [12] which go beyond the meanfield description.

  15. L’Arabie du Sud antique vue de l’intérieur :

    Directory of Open Access Journals (Sweden)

    Rémy Crassard

    2007-03-01

    Full Text Available Le Yémen a vu se développer ces dernières années des programmes de prospections et fouilles menés exclusivement par les Yéménites, jusqu’alors réalisés par les missions étrangères en coopération avec les équipes du GOAM et des universités yéménites. Parallèlement, une nouvelle génération des chercheurs formés aux universités de Sanaa et d’Aden ou aux universités étrangères s’est constituée. Nombreux ouvrages de recherches sur l’archéologie et l’histoire de Yémen préislamique, rédigés en langue arabe, ont vu le jour. Ces ouvrage font apparaître pour la première fois une approche de l’histoire du Yémen préislamique fondée, non pas sur les mythes et les légendes, mais sur l’archéologie et l’épigraphie. Cette nouvelle vision de l’histoire proposée par les chercheurs Yéménites doit faire face à une école traditionnelle, bien ancrée dans la mentalité de la population, qui défend une lecture légendaire de l’histoire du Yémen avant l’Islam.Ancient South Arabia as Seen from the Inside: The Archeological Excavations of the Yemeni ResearchersThough until recently, prospecting and archeological excavations have been carried out mostly by foreign expeditions (with the collaboration of the research teams from the Antiquities Department, during the past few years there have been programs in Yemen run exclusively by Yemeni institutions.Simultaneously, a new generation of researchers has appeared who graduated not from foreign universities but received their education at the universities of Sanaa, Aden and Dhamar. Numerous archeological and historical studies of the pre-Islamic period of Yemen were published in Arabic. For the first time, such studies adopt a methodology based not on myths and legends but on the strictly scientific data of archeology and epigraphy. Being in conflict with a more traditional school, which still dominates collective mentality and which defends a legendary

  16. Oxidation and Reduction of Iron-Titanium Oxides in Chemical Looping Combustion: A Phase-Chemical Description Oxydation et réduction des minerais de fer-titane dans la combustion en boucle chimique

    Directory of Open Access Journals (Sweden)

    den Hoed P.

    2011-05-01

    Full Text Available Ilmenite (FeTiO3 is being explored as an oxygen carrier in chemical looping processes. Its reduction and oxidation are described by the system Fe-Fe2O3-TiO2-Ti2O3. The phase diagram at 1 000°C, presented here, offers a useful tool for predicting reactions and their products. We see that Fe2TiO5 (pseudobrookite and TiO2 (rutile form a stable phase assemblage following the oxidation of FeTiO3 (ilmenite in air. The subsequent reduction of Fe2TiO5 at oxygen partial pressures of 10-15.5atm stabilizes Fe1.02Ti0.98O3, a solid solution of ilmenite. Further reduction will produce metallic iron, which compromises the integrity of the oxygen carrier for chemical looping processes. We speculate that the reduction of Fe-Ti oxides in several practical instances does not reach completion (and equilibrium under the imposed atmospheres operating in fuel reactors. L’ilménite (FeTiO3 est considéré comme un transporteur d’oxygène potentiel pour les procédés en boucle chimique. Ses mécanismes de réduction et d’oxydation sont décrits à travers le système Fe-Fe2O3-TiO2-TiO3. Le diagramme de phase à 1 000°C, présenté ici, est un outil utile pour prédire les réactions et les produits. Nous constatons que Fe2TiO5 (pseudobrookite et TiO2 (rutile forment un assemblage de phase stable après oxydation de l’ilménite (FeTiO3 dans l’air. La réduction subséquente de Fe2TiO5 à la pression partielle de 10−15,5atm stabilise vers Fe1.02Ti0.98O3, une solution solide d’ilménite. Une réduction plus poussée va produire du fer métallique et compromettre l’intégrité du transporteur d’oxygène dans la boucle chimique. Il est probable que la réduction des oxydes Fe-Ti ne soit pas, en pratique, complète et n’atteigne pas l’équilibre dans les conditions rencontrées en opération dans les réacteurs de réduction.

  17. Caractérisation de l'état chimique d'un élément par fluorescence X : l'aluminium dans les zéolithes Characterizing the Chemical State of an Element by X-Ray Fluorescence: Aluminium in Zeolites

    Directory of Open Access Journals (Sweden)

    Freund E.

    2006-11-01

    Full Text Available La fluorescence X est essentiellement connue dans le domaine de l'analyse quantitative, mais c'est aussi une méthode qui permet d'obtenir des informations détaillées sur la structure électronique des éléments. Dans cet article, nous montrons qu'il est possible de mettre au point une technique simple de caractérisation de l'état chimique d'un élément en utilisant de façon conjointe un spectromètre commercial et un programme adapté de traitement des données. Nous avons appliqué cette technique au cas de l'aluminium dans une zéolithe particulière : la mordénite dite à petits pores modifiée par différents traitements. Nous avons ainsi pu classer les solides suivant leur rapport (AI hexa-coordinné/AI tétracoordinné et montrer que le débouchage de la mordénite dite à petits pores est lié à l'extraction d'atomes d'aluminium de la charpente cristalline. X-ray fluorescence is mainly known in the field of qua-titative analysis, but it is also a useful method for obtaining detailed informations about the electronic structure of elements. This article shows that it is possible to develop a simple technique for characterizing the chemical state of an element by combining a commercial spectrometer with a program suited for data processing. This technique has been applied to the case of aluminum in a specific zeolite, ( small portmodernite, modified by various treatments. We were thus able to classify the solids according to the ratio of hexacoordinated AI/tetracoordinated AI and to show that the deblocking of the small portmordenite is linked to the extraction of aluminum atomrs from the crystalline structure.

  18. La poterie contemporaine au Yémen 

    Directory of Open Access Journals (Sweden)

    Jeanne Bonnefoy-Mercuriali

    2010-07-01

    Full Text Available Contrairement à d’autres traditions et arts populaires, la poterie yéménite contemporaine suscite peu l’intérêt, que ce soit de la part du public yéménite ou étranger, ou des chercheurs. Le rendu final des pièces apparaît en effet souvent comme décevant et de qualité médiocre, laissant penser que l’on aurait affaire à un artisanat mineur. Pourtant, au vu des contraintes auxquelles sont confrontés les potiers, il faut reconnaître que ceux-ci font preuve d’un réel savoir-faire technique. à travers l’étude de trois ateliers situés dans différentes régions du Yémen, cet article entend dresser un état des lieux de la poterie contemporaine. Il se focalise notamment sur les forces et les faiblesses d’un artisanat aujourd’hui confronté à de multiples défis liés par exemple à la transmission des savoirs, au renouvellement des techniques ou à la concurrence de produits de consommation importés.Contrary to other forms of popular arts and crafts, contemporary Yemeni pottery is often overlooked by the public, whether Yemeni or foreign, and by academics. The production often appears as disappointing and mediocre, letting one feel that it is a minor and uninteresting craft industry. Yet, if one takes into account the different constraints that they have to deal with, Yemeni potters appear to master a specific technique. Building on three case-studies located in different Yemeni regions, this article presents an inventory of contemporary pottery. It focuses on the strengths and weaknesses of a craft industry confronted to a wide range of challenges amongst which the transmission of knowledge, the renewal of techniques and the competition created by imported products.

  19. Baladiyya ! De l'informalité à l'illégalité

    Directory of Open Access Journals (Sweden)

    Blandine Destremau

    2001-09-01

    Full Text Available Au cours des années 1990, les brouettes, destinées à des usages variés (portage, vente et souvent équipées en conséquence, sont apparues en nombre dans les espaces publics yéménites des grandes villes. Comment situer ce phénomène par rapport à l'économie et la société yéménite ? Il est avant tout la marque du développement d'activités informelles dans la ville, faciles d'accès et exigeant peu de capital, mais qui ne semble pas être le fait des couches les plus pauvres de la population. Indépendance et mobilité sont les deux caractères mis en avant par les utilisateurs des brouettes pour expliquer leur succès. Toutefois, l'application de la législation d' " hygiène publique " promulguée en 1999 remet progressivement en cause ces avantages, en transformant ce qui était jusque-là un usage informel en usage illégal. Les brouettes se voient forcées à la sédentarisation, à défaut de disparaître totalement du paysage.Baladiyya ! From informal to illegal : Wheelbarrows in SanaaDuring the 1990s, wheelbarrows used for portage and small-scale commerce, have appeared in great number in public spaces of Yemen’s important cities. How can this phenomenon be related to the economy and society of Yemen ? It is first of all an indicator for informal urban economic activities that are easily accessible and require little capital, and yet it does not seem only an activity of the poorest. Independence and mobility are the two factors put forward by owners of wheelbarrows to explain their success. The application of a new "public hygiene" law passed in 1999 progressively challenges these benefits, by changing what was up to then an informal use into an illegal use. Under the new law, wheelbarrows are required to be stationary or disappear from the cities.

  20. The whitening effect of bleaching agents on tetracycline-stained rat teeth.

    Science.gov (United States)

    Shin, D H; Summitt, J B

    2002-01-01

    This study compared the whitening effect of three bleaching agents on the teeth of rats and demonstrated differences in bleaching where dentin was exposed or enamel was thin. Thirty Albino rats were peritoneally injected with tetracycline solution daily for two weeks. Thirty-two disc-shaped specimens were cut from the crowns of incisors removed from sacrificed rats and were irradiated with UV light for 16 hours. Sections were stored in saline. Eight sections served as controls and were not bleached. Three bleaching agents (Opalescence, Rembrandt and Nite White) were applied to eight specimens each, five times a day for two weeks, and images of the sections were recorded at the following times: before bleaching (baseline), day 1, day 3, day 5, day 7, day 9, day 11 and day 14. Mean colors to demonstrate any change (deltaE) from baseline for each time period were as follows: control-9.78 (baseline), 9.17, 9.36, 9.65, 9.40, 9.99, 10.57, 11.36; Opalescence-10.08, (baseline) 7.63, 6.72, 6.04, 5.10, 4.87, 4.89, 4.27; Rembrandt-9.83 (baseline), 11.27, 9.55, 8.36, 7.75, 6.94, 7.11, 7.04; Nite White-10.44 (baseline), 9.92, 7.58, 6.80, 5.45, 5.05, 4.73, 4.01. All bleached teeth were lightened (p<.01). Another 56 tetracycline-stained rat incisors were UV irradiated for three days. Three different penetration depths were tested: penetration through lingual dentin and labial enamel (DN group), penetration through labial enamel only (RE group) and penetration through labial enamel covered with 1.0 mm human enamel (HE group). Specimens were bleached with Opalescence for one hour five times a day for one week or four weeks. A control group of unbleached teeth was also examined. Results (deltaE) were as follows: control--11.67; 1-week DN--13.55; 1-week RE--12.80; 1-week HE--12.07; 4-week DN--7.48; 4-week RE--7.50; 4-week HE--11.69. The color change in the 4-week DN and the 4-week RE groups showed the greatest reduction (p<.01).

  1. Final Report - Subcontract B6183769

    Energy Technology Data Exchange (ETDEWEB)

    Bank, R. [Univ. of California, San Diego, CA (United States)

    2017-06-12

    During my visit to LLNL during July 5{15, 2016, we worked on linear system solvers. The two level hierarchical solver that initiated our study was developed to solve linear system arising from hp adaptive finite element calculations, and is implemented in the PLTMG software package, version 12 [1]. This preconditioner typically requires 3-20% of the space used by the stiffness matrix for higher order elements. It has multigrid like convergence rates for a wide variety of PDEs (self-adjoint positive definite elliptic equations, convection dominated convection-diffusion equations, and highly inde nite Helmholtz equations, among others). The convergence rate is not independent of the polynomial degree p as p ! 1, but but remains strong for p 9, which is the highest polynomial degree allowed in PLTMG, due to limitations of numerical quadrature formulae. A more complete description of the method and some numerical experiments illustrating its effectiveness appear in [2]. Like traditional geometric multilevel methods, this scheme relies on extensive knowledge of the underlying finite element space in order to construct both the smoother and the coarse grid correction components.

  2. Synthesis of single-phase L10-FeNi magnet powder by nitrogen insertion and topotactic extraction.

    Science.gov (United States)

    Goto, Sho; Kura, Hiroaki; Watanabe, Eiji; Hayashi, Yasushi; Yanagihara, Hideto; Shimada, Yusuke; Mizuguchi, Masaki; Takanashi, Koki; Kita, Eiji

    2017-10-16

    Tetrataenite (L1 0 -FeNi) is a promising candidate for use as a permanent magnet free of rare-earth elements because of its favorable properties. In this study, single-phase L1 0 -FeNi powder with a high degree of order was synthesized through a new method, nitrogen insertion and topotactic extraction (NITE). In the method, FeNiN, which has the same ordered arrangement as L1 0 -FeNi, is formed by nitriding A1-FeNi powder with ammonia gas. Subsequently, FeNiN is denitrided by topotactic reaction to derive single-phase L1 0 -FeNi with an order parameter of 0.71. The transformation of disordered-phase FeNi into the L1 0 phase increased the coercive force from 14.5 kA/m to 142 kA/m. The proposed method not only significantly accelerates the development of magnets using L1 0 -FeNi but also offers a new synthesis route to obtain ordered alloys in non-equilibrium states.

  3. Bleaching agent action on color stability, surface roughness and microhardness of composites submitted to accelerated artificial aging.

    Science.gov (United States)

    Rattacaso, Raphael Mendes Bezerra; da Fonseca Roberti Garcia, Lucas; Aguilar, Fabiano Gamero; Consani, Simonides; de Carvalho Panzeri Pires-de-Souza, Fernanda

    2011-04-01

    The purpose of this study was to evaluate the bleaching agent action on color stability, surface roughness and microhardness of composites (Charisma, Filtek Supreme and Heliomolar - A2) submitted to accelerated artificial aging (AAA). A Teflon matrix (12 x 2 mm) was used to fabricate 18 specimens (n=6) which, after polishing (Sof-Lex), were submitted to initial color reading (ΔE), Knoop microhardness (KHN) (50 g/15 s load) and roughness (R(a)) (cut-off 0.25 mm) tests. Afterwards, the samples were submitted to AAA for 384 hours and new color, microhardness and roughness readings were performed. After this, the samples were submitted to daily application (4 weeks) of 16% Carbamide Peroxide (NiteWhite ACP) for 8 hours and kept in artificial saliva for 16 hours. New color, microhardness and roughness readings were made at the end of the cycle, and 15 days after bleaching. Comparison of the ΔE means (2-way ANOVA, Bonferroni, P<.05) indicated clinically unacceptable color alteration for all composites after AAA, but without significant difference. Statistically significant increase in the KHN values after AAA was observed, but without significant alterations 15 days after bleaching. For R(a) there was no statistically significant difference after AAA and 15 days after bleaching. The alterations promoted by the bleaching agent and AAA are material dependent.

  4. Design of a micro-irrigation system based on the control volume method

    Directory of Open Access Journals (Sweden)

    Chasseriaux G.

    2006-01-01

    Full Text Available A micro-irrigation system design based on control volume method using the back step procedure is presented in this study. The proposed numerical method is simple and consists of delimiting an elementary volume of the lateral equipped with an emitter, called « control volume » on which the conservation equations of the fl uid hydrodynamicʼs are applied. Control volume method is an iterative method to calculate velocity and pressure step by step throughout the micro-irrigation network based on an assumed pressure at the end of the line. A simple microcomputer program was used for the calculation and the convergence was very fast. When the average water requirement of plants was estimated, it is easy to choose the sum of the average emitter discharge as the total average fl ow rate of the network. The design consists of exploring an economical and effi cient network to deliver uniformly the input fl ow rate for all emitters. This program permitted the design of a large complex network of thousands of emitters very quickly. Three subroutine programs calculate velocity and pressure at a lateral pipe and submain pipe. The control volume method has already been tested for lateral design, the results from which were validated by other methods as fi nite element method, so it permits to determine the optimal design for such micro-irrigation network

  5. Probabilistic Damage Characterization Using the Computationally-Efficient Bayesian Approach

    Science.gov (United States)

    Warner, James E.; Hochhalter, Jacob D.

    2016-01-01

    This work presents a computationally-ecient approach for damage determination that quanti es uncertainty in the provided diagnosis. Given strain sensor data that are polluted with measurement errors, Bayesian inference is used to estimate the location, size, and orientation of damage. This approach uses Bayes' Theorem to combine any prior knowledge an analyst may have about the nature of the damage with information provided implicitly by the strain sensor data to form a posterior probability distribution over possible damage states. The unknown damage parameters are then estimated based on samples drawn numerically from this distribution using a Markov Chain Monte Carlo (MCMC) sampling algorithm. Several modi cations are made to the traditional Bayesian inference approach to provide signi cant computational speedup. First, an ecient surrogate model is constructed using sparse grid interpolation to replace a costly nite element model that must otherwise be evaluated for each sample drawn with MCMC. Next, the standard Bayesian posterior distribution is modi ed using a weighted likelihood formulation, which is shown to improve the convergence of the sampling process. Finally, a robust MCMC algorithm, Delayed Rejection Adaptive Metropolis (DRAM), is adopted to sample the probability distribution more eciently. Numerical examples demonstrate that the proposed framework e ectively provides damage estimates with uncertainty quanti cation and can yield orders of magnitude speedup over standard Bayesian approaches.

  6. Cumulative hierarchies and computability over universes of sets

    Directory of Open Access Journals (Sweden)

    Domenico Cantone

    2008-05-01

    Full Text Available Various metamathematical investigations, beginning with Fraenkel’s historical proof of the independence of the axiom of choice, called for suitable definitions of hierarchical universes of sets. This led to the discovery of such important cumulative structures as the one singled out by von Neumann (generally taken as the universe of all sets and Godel’s universe of the so-called constructibles. Variants of those are exploited occasionally in studies concerning the foundations of analysis (according to Abraham Robinson’s approach, or concerning non-well-founded sets. We hence offer a systematic presentation of these many structures, partly motivated by their relevance and pervasiveness in mathematics. As we report, numerous properties of hierarchy-related notions such as rank, have been verified with the assistance of the ÆtnaNova proof-checker.Through SETL and Maple implementations of procedures which effectively handle the Ackermann’s hereditarily finite sets, we illustrate a particularly significant case among those in which the entities which form a universe of sets can be algorithmically constructed and manipulated; hereby, the fruitful bearing on pure mathematics of cumulative set hierarchies ramifies into the realms of theoretical computer science and algorithmics.

  7. HTST (Yüksek Sıcaklık, Kısa Zaman Metodunda Sıcaklık Derecesi ve Depolama Zamanının Pastörize Süt Kalitesine Etkisi

    Directory of Open Access Journals (Sweden)

    Nurhan Akyüz

    2015-02-01

    Full Text Available Yaratanın yavruya en değerli armağanı olan süt, canlının ihtiyaç duyduğu çeşitli besin maddelerini yeter miktar, dengeli oran ve alınabilir formda içeren çok değerli bir besin maddesidir. Başka ürünlere çevrilmeden olduğu gibi içilmesi halinde, bu mükemmel besin maddesinden azami derecede faydalanmak mümkündür. Süt ürünlerine işlendiğinde besin değerinde farklı oranlarda kayıplar ortaya çıkmakta, çok yönlü gıda olma niteliği önemli ölçüde azalmaktadır.

  8. HTST (Yüksek Sıcaklık, Kısa Zaman) Metodunda Sıcaklık Derecesi ve Depolama Zamanının Pastörize Süt Kalitesine Etkisi

    OpenAIRE

    Akyüz, Nurhan; Çağlar, Abdullah

    2014-01-01

    Yaratanın yavruya en değerli armağanı olan süt, canlının ihtiyaç duyduğu çeşitli besin maddelerini yeter miktar, dengeli oran ve alınabilir formda içeren çok değerli bir besin maddesidir. Başka ürünlere çevrilmeden olduğu gibi içilmesi halinde, bu mükemmel besin maddesinden azami derecede faydalanmak mümkündür. Süt ürünlerine işlendiğinde besin değerinde farklı oranlarda kayıplar ortaya çıkmakta, çok yönlü gıda olma niteliği önemli ölçüde azalmaktadır....

  9. A generalization of Bertrand's test

    Directory of Open Access Journals (Sweden)

    Amirali Tabatabai Adnani

    2014-07-01

    Full Text Available One of the most practical routine tests for convergence of a positive series makes use of the ratio test. If this test fails, we can use Rabbe's test. When Rabbe's test fails the next sharper criteria which may sometimes be used is the Bertrand's test. If this test fails,we can use a generalization of Bertrand's test and such tests can be continued in nitely. For simplicity, we call ratio test, Rabbe's test, Bertrand's test as the Bertrand's test of order 0, 1 and 2, respectively. In this paper, we generalize Bertrand's test in order k for natural k > 2. It is also shown that for any k, there exists a series such that the Bertrand's test of order fails, but such test of order k + 1 is useful, furthermore we show that there exists a series such that for any k, Bertrand's test of order k fails. The only prerequisite for reading this article is a standard knowledge of advanced calculus.

  10. Effects of sintering additives on the microstructural and mechanical properties of the ion-irradiated SiCf/SiC

    Science.gov (United States)

    Fitriani, Pipit; Sharma, Amit Siddharth; Yoon, Dang-Hyok

    2018-05-01

    SiCf/SiC composites containing three different types of sintering additives viz. Sc-nitrate, Al2O3-Sc2O3, and Al2O3-Y2O3, were subjected to ion irradiation using 0.2 MeV H+ ions with a fluence of 3 × 1020 ions/m2 at room temperature. Although all composites showed volumetric swelling upon ion irradiation, SiCf/SiC with Sc-nitrate showed the smallest change followed by those with the Al2O3-Sc2O3 and Al2O3-Y2O3 additives. In particular, SiCf/SiC containing the conventional Al2O3-Y2O3 additive revealed significant microstructural changes, such as surface roughening and the formation of cracks and voids, resulting in reduced fiber pullout upon irradiation. On the other hand, the SiCf/SiC with Sc-nitrate showed the highest resistance against ion irradiation without showing any macroscopic changes in surface morphology and mechanical strength, indicating the importance of the sintering additive in NITE-based SiCf/SiC for nuclear structural applications.

  11. Mersin-Aydıncık İlçesi Anıt Dallı Servileri (Cupressus sempervirens L. var. horizontalis (Mill. Gord.

    Directory of Open Access Journals (Sweden)

    R. ÖZÇELİK

    2009-04-01

    Full Text Available Ülkemizde bugüne kadar bir çok anıt ağaç ve meşcerenin tespiti yapılmıştır. Bu çalışmada, Mersin ili Aydıncık İlçesindeki; çap, boy, yaş, tepe çapı (somut özellikler ve Mistik özellikleri (soyut özellikler nedeniyle anıt ağaç niteliği taşıyan iki adet Dallı Servi (Cupresus sempervirens L. var. horizontalis (Mill. Gord. tanıtılmıştır. Bu iki ağaç, şimdiye kadar anıt ağaç olarak tescili yapılmış en uzun boylu servi bireyleridir. Bu nedenle; doğal, kültürel ve estetik değere sahip bu doğal varlıkların korunması gerekmektedir.

  12. The finite element method for evaluating files rotary Nickel-Titanium: Literature review

    Directory of Open Access Journals (Sweden)

    Laura Marcela Aldana Ojeda

    2014-07-01

    Full Text Available Objective: To analyse through the evaluation of the articles found in this literature review, the usefulness of Finite Element Method in determining fracture mechanisms les Ni–Ti and correlated with experimental results. Materials and methods: A search of the literature aiming experimental and theoretical studies in databases and journals was performed. Results: The comparison of the experimental and theoretical results Mtwo® found that the best system is the cyclical fracture resistance occurs in correlation with low accumulation of Von Mises stress, the ProTaper® system has low tensile strength cyclic correlated with a large accumulation of Von Mises stress in extreme conditions, the QUANTEC® system was more exible but with a large accumulation of Von Mises stress system. Conclusions: We found that the nite element method has agreement with experimental methods; in rotary systems the best for handling curved canals is the Mtwo® system, ProTaper® system is the best torsional resistance presents; concluded that the cross–sectional design of the le is directly related to the mechanical performance of it.

  13. Finite-element modelling of physics-based hillslope hydrology, Keith Beven, and beyond

    Science.gov (United States)

    Loague, Keith; Ebel, Brian A.

    2016-01-01

    Keith Beven is a voice of reason on the intelligent use of models and the subsequent acknowledgement/assessment of the uncertainties associated with environmental simula-tion. With several books and hundreds of papers, Keith’s work is widespread, well known, and highly referenced. Four of Keith’s most notable contributions are the iconic TOPMODEL (Beven and Kirkby, 1979), classic papers on macropores and preferential flow (Beven and Germann, 1982, 2013), two editions of the rainfall-runoff modelling bible (Beven, 2000a, 2012), and the selection/commentary for the first volume from the Benchmark Papers in Hydrology series (Beven, 2006b). Remarkably, the thirty-one papers in his benchmark volume, entitled Streamflow Generation Processes, are not tales of modelling wizardry but describe measurements designed to better understand the dynamics of near-surface systems (quintessential Keith). The impetus for this commentary is Keith’sPhD research (Beven, 1975), where he developed a new finite-element model and conducted concept-development simu-lations based upon the processes identified by, for example, Richards (1931), Horton (1933), Hubbert (1940), Hewlett and Hibbert (1963), and Dunne and Black (1970a,b). Readers not familiar with the different mechanisms of streamflow generation are referred to Dunne (1978).

  14. Final Report - Subcontract B623760

    Energy Technology Data Exchange (ETDEWEB)

    Bank, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-11-17

    During my visit to LLNL during July 17{27, 2017, I worked on linear system solvers. The two level hierarchical solver that initiated our study was developed to solve linear systems arising from hp adaptive finite element calculations, and is implemented in the PLTMG software package, version 12. This preconditioner typically requires 3-20% of the space used by the stiffness matrix for higher order elements. It has multigrid like convergence rates for a wide variety of PDEs (self-adjoint positive de nite elliptic equations, convection dominated convection-diffusion equations, and highly indefinite Helmholtz equations, among others). The convergence rate is not independent of the polynomial degree p as p ! 1, but but remains strong for p 9, which is the highest polynomial degree allowed in PLTMG, due to limitations of the numerical quadrature rules implemented in the software package. A more complete description of the method and some numerical experiments illustrating its effectiveness appear in. Like traditional geometric multilevel methods, this scheme relies on knowledge of the underlying finite element space in order to construct the smoother and the coarse grid correction.

  15. An adjoint-based scheme for eigenvalue error improvement

    International Nuclear Information System (INIS)

    Merton, S.R.; Smedley-Stevenson, R.P.; Pain, C.C.; El-Sheikh, A.H.; Buchan, A.G.

    2011-01-01

    A scheme for improving the accuracy and reducing the error in eigenvalue calculations is presented. Using a rst order Taylor series expansion of both the eigenvalue solution and the residual of the governing equation, an approximation to the error in the eigenvalue is derived. This is done using a convolution of the equation residual and adjoint solution, which is calculated in-line with the primal solution. A defect correction on the solution is then performed in which the approximation to the error is used to apply a correction to the eigenvalue. The method is shown to dramatically improve convergence of the eigenvalue. The equation for the eigenvalue is shown to simplify when certain normalizations are applied to the eigenvector. Two such normalizations are considered; the rst of these is a fission-source type of normalisation and the second is an eigenvector normalisation. Results are demonstrated on a number of demanding elliptic problems using continuous Galerkin weighted nite elements. Moreover, the correction scheme may also be applied to hyperbolic problems and arbitrary discretization. This is not limited to spatial corrections and may be used throughout the phase space of the discrete equation. The applied correction not only improves fidelity of the calculation, it allows assessment of the reliability of numerical schemes to be made and could be used to guide mesh adaption algorithms or to automate mesh generation schemes. (author)

  16. RECIPES FOR BUILDING THE DUAL OF CONIC OPTIMIZATION PROBLEM

    Directory of Open Access Journals (Sweden)

    Diah Chaerani

    2010-08-01

    Full Text Available Building the dual of the primal problem of Conic Optimization (CO isa very important step to make the ¯nding optimal solution. In many cases a givenproblem does not have the simple structure of CO problem (i.e., minimizing a linearfunction over an intersection between a±ne space and convex cones but there areseveral conic constraints and sometimes also equality constraints. In this paper wedeal with the question how to form the dual problem in such cases. We discuss theanswer by considering several conic constraints with or without equality constraints.The recipes for building the dual of such cases is formed in standard matrix forms,such that it can be used easily on the numerical experiment. Special attention isgiven to dual development of special classes of CO problems, i.e., conic quadraticand semide¯nite problems. In this paper, we also brie°y present some preliminariestheory on CO as an introduction to the main topic

  17. Eigenvectors and fixed point of non-linear operators

    Directory of Open Access Journals (Sweden)

    Giulio Trombetta

    2007-12-01

    Full Text Available Let X be a real infinite-dimensional Banach space and ψ a measure of noncompactness on X. Let Ω be a bounded open subset of X and A : Ω → X a ψ-condensing operator, which has no fixed points on ∂Ω.Then the fixed point index, ind(A,Ω, of A on Ω is defined (see, for example, ([1] and [18]. In particular, if A is a compact operator ind(A,Ω agrees with the classical Leray-Schauder degree of I −A on Ω relative to the point 0, deg(I −A,Ω,0. The main aim of this note is to investigate boundary conditions, under which the fixed point index of strict- ψ-contractive or ψ-condensing operators A : Ω → X is equal to zero. Correspondingly, results on eigenvectors and nonzero fixed points of k-ψ-contractive and ψ-condensing operators are obtained. In particular we generalize the Birkhoff-Kellog theorem [4] and Guo’s domain compression and expansion theorem [17]. The note is based mainly on the results contained in [7] and [8].

  18. Contes et histoires du Yémen

    Directory of Open Access Journals (Sweden)

    Muhammad 'Alî Abduh

    2001-09-01

    Full Text Available Deux contes de la région de Taez, traduits en français, illustrent plusieurs aspects de la vie sociale traditionnelle des villages yéménites. " La brebis devenue hyène " conte les mésaventures d'un groupe d'hommes partis pour une lointaine visite, chargés de qat et accompagnés d'une brebis. " La divination par les os " met en scène le face-à-face entre l'honneur perdu d'un cheikh et celui du hérault de sa tribu.Traditional Tales of YemenThe two tales from the Taez area, translated into French, express different aspects of the traditional social life in Yemeni villages. "The sheep that became a hyena" is about the misfortunes of a group of men that left for a journey transporting qat and a sheep. The other, "Divination by bones", consists in a direct exchange between the lost  honour of a sheikh and the one of the tribe’s herald.

  19. Aux marges du monde arabe

    Directory of Open Access Journals (Sweden)

    Hélène Thiollet

    2004-09-01

    Full Text Available L’étude des migrations contemporaines des Érythréens vers le Yémen au tournant des années quatre-vingt-dix permet d’observer les transformations des dynamiques régionales à l’œuvre dans le monde arabe. Les migrations sont un phénomène sensible aux différents aspects (politiques, économiques, culturels, géographiques de l’intégration régionale. Celle si est envisagée dans cet article à travers une approche doublement marginale : -la marginalité géographique de l’Érythrée arabo-africaine et du Yémen, économi­quement isolé dans la péninsule Arabique, -l’étude des migrations formelles et informelles, élément souvent marginal dans l’étude des institutions et des échanges qui constituent un système régional intégré. Cette étude est fondée sur une série d’entretiens menés au Yémen entre février et avril 2002 auprès des administrations yéménites et de la population érythréenne.

  20. The finite element method for evaluating files rotary Nickel-Titanium: Literature review

    Directory of Open Access Journals (Sweden)

    Laura Marcela Aldana Ojeda

    2015-01-01

    Full Text Available Objective: To analyse through the evaluation of the articles found in this literature review, the usefulness of Finite Element Method in determining fracture mechanisms les Ni–Ti and correlated with experimental results. Materials and methods: A search of the literature aiming experimental and theoretical studies in databases and journals was performed. Results: The comparison of the experimental and theoretical results Mtwo® found that the best system is the cyclical fracture resistance occurs in correlation with low accumulation of Von Mises stress, the ProTaper® system has low tensile strength cyclic correlated with a large accumulation of Von Mises stress in extreme conditions, the QUANTEC® system was more exible but with a large accumulation of Von Mises stress system. Conclusions: We found that the nite element method has agreement with experimental methods; in rotary systems the best for handling curved canals is the Mtwo® system, ProTaper® system is the best torsional resistance presents; concluded that the cross–sectional design of the le is directly related to the mechanical performance of it.

  1. Numerical Study of Mixed Convection of Nanofluid in a Concentric Annulus with Rotating Inner Cylinder

    Directory of Open Access Journals (Sweden)

    G. A. Sheikhzadeh

    2013-01-01

    Full Text Available In this work, the steady and laminar mixed convection of nanofluid in horizontal concentric annulus withrotating inner cylinder is investigated numerically. The inner and outer cylinders are kept at constanttemperature Ti and To respectively, where Ti>To. The annular space is filled with Alumina-water nanofluid.The governing equations with the corresponded boundary conditions in the polar coordinate are discretizedusing the finite volume method where pressure-velocity coupling is done by the SIMPLER algorithm.Numerical results have been obtained for Rayleigh number ranging from 102 to 105, Reynolds number from 1 to 300 and nanoparticles volume fraction from 0.01 to 0.06. The effects of the Reynolds and Rayleigh numbers, average diameter of nanoparticles and the volume fraction of the nanoparticles on the fluid flow and heat transfer inside the annuli are investigated. According to the results, the average Nusselt number decreases with increasing the Reynolds number. However, the average Nusselt number increases by increasing the Rayleigh number. Moreover, the maximum average Nusselt number occurs for an optimal nanoparticle volume fraction except situations that heat conduction predominates over the heat convection. In these conditions the average Nusselt number is close to unity.

  2. COMPARATIVE ANALYSIS OF BEHAVIOURS RELATED TO FUNCTIONAL FOODS AMONG SELECTED YOUNG CONSUMERS IN POLAND AND GERMANY

    Directory of Open Access Journals (Sweden)

    Magdalena Zegan

    2016-12-01

    Full Text Available Nutrition is one of the key factors infl uencing human health. Consuming foods that either naturally contain or have been enriched with bioactive substances may aid the organism’s proper development and functioning and, most importantly, be a vital element in the prophylaxis of many non-communicable diseases as well as improve general sense of well-being. The aim of the study was to compare behaviours related to functional foods among a selected group of young people. The survey was conducted among 153 purposively selected young consumers from Poland and Germany in March/April 2015. An original survey questionnaire was employed. IBM SPSS Statistics ver. 23 software was used for statistical analysis (chi-squared test p < 0.05. The term “functional foods” was largely unknown among the respondents. A defi nite majority of the survey participants reported having bought and consumed products that, in fact, belong to this group of foods. The main source of information on the topic of functional foods was the Internet. While buying these products, respondents from both countries chiefl y took into account the price, the quality and the list of ingredients. The results point to the need to popularize information about functional foods using trustworthy sources, in order to foster nutritional awareness. Consumer knowledge is the basis for the positive perception and acceptance of health-promoting foods and for making rational dietary choices. 

  3. AJZEN’İN PLANLANMIŞ DAVRANIŞ TEORİSİ BAĞLAMINDA WHISTLEBLOWING (BİLGİ İFŞASI)

    OpenAIRE

    MERCAN, Nuray

    2015-01-01

    Whistleblowing uzun yıllardan beri Amerika’da bir fenomen olarak politik kültürün bir unsuru olmuştur. Örgütsel yanlış uygulamalar ve etik dışı davranışlar niteliğindeki işyerlerinde her türlü etik dışı davranış whistleblowing kapsamındadır. İşyerlerinde etik dışı davranışlardan korunmak ve etkilerini azaltmak için whistleblowing örgütlerde artırılmalıdır. Örgütlerdeki etik dışı ve yasal olmayan davranışların ve olayların açıklanması ve sistemli bir şekilde incelenmesi ile etik dışı olan...

  4. Peccei–Quinn Transformations and Black Holes: Orbit Transmutations and Entanglement Generation

    Directory of Open Access Journals (Sweden)

    Thiago Prudêncio

    2017-02-01

    Full Text Available In a recent paper (Mod. Phys. Lett. A 2015, 30, 1550104, the black-hole/qubit correspondence (BHQC was exploited to define “black hole quantum circuits” allowing for a change of the supersymmetry-preserving features of electromagnetic charge configurations supporting the black hole solution. This resulted in switching from one U-duality orbit to another, or equivalently, from an element of the corresponding Freudenthal triple system with a definite rank to another one. On the supergravity side of BHQC, such quantum gates are related to particular symplectic transformations acting on the black hole charges; namely, such transformations cannot belong to the U-duality group, otherwise switching among orbits would be impossible. In this paper, we consider a particular class of such symplectic transformations, namely the ones belonging to the so-called Peccei–Quinn symplectic group, introduced some time ago within the study of very special Kähler geometries of the vector multiplets’ scalar manifolds in N = 2 supergravity in D =4 spacetime dimensions.

  5. DİVANÜ LÜGATİ’T- TÜRK’TE YER ALAN TÜRK HALK KÜLTÜRÜ ÖGELERİNİN İLKÖĞRETİM 4. VE 5. SINIF SOSYAL BİLGİLER PROGRAMLARINDA İŞLENİŞİ

    Directory of Open Access Journals (Sweden)

    Namık ÇENCEN

    2016-05-01

    Full Text Available 1074 yılında Kaşgarlı Mahmut tarafından kaleme alınan Divan-ı Lûgati't Türk, XI. yüzyıl Türk dünyasının sağlam bir dil ve kültür mirasıdır. Kaşgarlı Mahmut bu değerli eseri ile Türk milletinin kalbinde olduğu kadar Türk dil ve kültür tarihine de adını altın harflerle yazdırmaya hak kazanmış üstün değerlerimizden biridir. Türk kültür mirasının korunmasında ve yaşatılmasında ders programları ve kitaplarının önemli işlevleri bulunmaktadır.Bu makalede Divanü Lügati’t Türk’te yer alan yüksek Türk kültürünün öğeleri (yemek adetleri, doğum, düğün, ölüm adetlerinden, oyun ve eğlencesine vb… ele alınarak bunların “İlköğretim 4. ve 5. Sınıf Sosyal Bilgiler Programlarında işlenişi ve bu kültür öğeleriyle ilgili genel amaçlar, kazanımlar vurgulanarak, programdaki işlenişi ve oranı üzerinde durulmaktadır. Bu çalışma nitel bir araştırma olup veriler doküman incelemesi kullanılarak toplanmıştır. 4. sınıf Sosyal Bilgiler öğretim programında yer alan sekiz ünite içerisinde Divanü Lügati’t Türk’te yer alan Türk Kültür öğeleri yalnızca iki ünite içerisinde ele alınmaktadır. 5.sınıf Sosyal Bilgiler öğretim programında, sekiz ünite içerisinde Divanü Lügati’t Türk’te yer alan Türk Kültür öğeleri yalnızca bir ünite içerisinde ele alınmaktadır. Kültür aktarımına yardımcı olduğu düşünülen; öğrencileri kültürel değerler bakımından besleyici ve duyarlılığı yüksek bireyler olarak yetiştirmeye yönelik bir ders olan Sosyal Bilgiler dersinin öğretim programında Türk halk kültürü öğelerinin daha fazla yer alması gerektiği düşünülmektedir. Anahtar Kelimeler: Sosyal Bilgiler Programı, Divanü Lügati’t Türk, Ders Programı, Değerler,  Kazanımlar TEACHING TURKISH FOLKLOR ELEMENTS FROM DİVANÜ LÜGATİ’T- TURK in 4TH AND 5TH GRADE SOCIAL SCIENCES CURRICULUMAbstract: Divan

  6. Unexplored regions in QFT: an alternative resolution of the gauge-theoretic clash between localization and the Hilbert space of quantum theory

    International Nuclear Information System (INIS)

    Schroer, Bert; FU-Berlin

    2012-02-01

    Massive quantum matter of prescribed spin permits infinitely many possibilities of covariantization in terms of spinorial (undotted/dotted) pointlike fields, whereas massless nite helicity representations lead to large gap in this spinorial spectrum which for s=1 excludes vector potentials. Since the nonexistence of such pointlike generators is the result of a deep structural clash between modular localization and the Hilbert space setting of QT, there are two ways out: gauge theory which sacrifices the Hilbert space and keeps the pointlike formalism and the use of string like potentials which allows to preserve the Hilbert space. The latter setting contains also string-localized charge-carrying operators whereas the gauge theoretic formulation is limited to point-like generated observables. This description also gives a much better insight into the Higgs mechanism which leads to a revival of the more physical 'Schwinger-Higgs' screening idea. The new formalism is not limited to m=0, s=1, it leads to renormalizable inter- actions in the sense of power-counting for all s in massless representations. The existence of string like vector potentials is preempted by the Aharonov-Bohm effect in QFT; it is well-known that the use of pointlike vector potentials in Stokes theorem would with lead to wrong results. Their use in Maxwell's equations is known to lead to zero Maxwell charge. The role of string-localization in the problem behind the observed invisibility and confinement of gluons and quarks leads to new questions and problems. (author)

  7. Biology and fertility life table of Hypercompe indecisa on artificial diet

    International Nuclear Information System (INIS)

    Nava, Dori Edson; Diez-Rodriguez, Gabriela Ines; Melo, Mirtes; Afonso, Ana Paula Schneid

    2008-01-01

    The objective of this work was to study the biology of Hypercompe indecisa and construct a life table of fertility on an artificial diet, aiming at insect rearing in the laboratory. The following variables were determined: duration and survival of egg, larval and pupal phases; number of larval stages; sexual ratio; pupal weight; longevity; fecundity; and the period of pre-oviposition and oviposition. The embrionary, larval and pupal phases were 6, 25.4 and 64.3 days, with survival of 92.7, 92 and 71.9%, respectively. Six larval stages with variable durations were observed. Pupal weight was 1.04 g for females and 0.726 g for males. The biological cycle was 95.6 days, with 61.3% total survival. Females laid in average 1,531 eggs, during 8.3 days, with a pre-oviposition period of two days. The average longevity of males and females was 21.9 and 21.8 days, respectively, and the sexual ratio of males to females was 0.54. Increase of H. indecisa was 283 times through each generation, with the generation average duration of 98 days, and the fi nite ratio of increase of 1.0593. The used artificial diet was adequate for rearing H. indecisa, in the laboratory. (author)

  8. Simulation of a 3D unsteady flow in an axial turbine stage

    Directory of Open Access Journals (Sweden)

    Straka Petr

    2012-04-01

    Full Text Available The contribution deals with a numerical simulation of an unsteady flow in an axial turbine stage. The solution is performed using an in-house numerical code developed in the Aeronautical and Test Institute, Plc. in Prague. The numerical code is based on a finite volume discretization of governing equations (Favre averaged Navier-Stokes equations and a two-equations turbulence model. The temporal integration is based on the implicit second-order backward Euler formula, which is realized through the iteration process in dual time. The proposed numerical method is used for solution of the 3D, unsteady, viscous turbulent flow of a perfect gas in the axial turbine stage. The flow path consists of an input nozzle, stator blade-wheel, rotor blade-wheel, a shroud-seal gap and a diffuser. Attention is paid to the influence of a secondary flow structures, such as generated vortices and flow in shroud-seal gap.

  9. Genetiği Değiştirilmiş Tohum Yağları ve Özellikleri

    Directory of Open Access Journals (Sweden)

    Şükran Kuleaşan

    2015-02-01

    Full Text Available Günümüzde genetik mühendisliğinin tarımsal uygulamalardaki gelişimi sayesinde yağ bitkilerinde genetik modifikasyonlar yapılarak tohum yağının yağ asidi kompozisyonunu belirlemek olanaklı hale gelmiştir. Dünya'da bitkisel yağ üretiminin yaklaşık olarak 87 milyon ton olduğu bildirilmektedir. Bu üretimin ekonomik değeri ise 40 milyar Amerikan Doları'dır. Yağların insan beslenmesindeki öneminin yanı sıra bitkisel yağ asitleri, sabun, deterjan, gres, biyoyakıt, kozmetik ve boya sanayi için de hammadde niteliğindedir. Bu nedenle bitkisel yağlara olan ilgi son yıllarda giderek artmaktadır. Ayrıca bitkisel üretim fazlası yağın, petrole alternatif olarak kullanılabileceği de belirtilmektedir.

  10. İSTANBUL’DA YER ALAN YEŞİL RESTORAN İŞLETMELERİ HİZMET KALİTESİNİN GRSERV MODELİ İLE DEĞERLENDİRİLMESİ

    OpenAIRE

    Kurnaz, Alper; Özdoğan, Osman Nuri

    2017-01-01

    İnsanların çevreye ve sağlıklı ürüne olanilgileri sürekli artmaktadır. Bu artış ile birlikte dışarıda yeme içme ihtiyacısonucu yiyecek içecek işletmelerinde sunulan hizmetin kalitesi önemkazanmaktadır. Yeşil restoranların sürdürülebilir ürünler kullanması ve çevreyeduyarlı hizmetleri tercih etmesi müşteriler tarafından talep edilenuygulamalardır. Bu bağlamda yeşil restoranların sunmuş olduğu hizmetin niteliğive bunun ölçülmesi ihtiyaç haline gelmiştir. Bu ihtiyaç hizmet kalitesikavramını ön p...

  11. MEMS-based contact stress field measurements at a rough elastomeric layer: local test of Amontons’ friction law in static and steady sliding regimes

    Directory of Open Access Journals (Sweden)

    Debrégeas G.

    2010-06-01

    Full Text Available We present the results of recent friction experiments in which a MEMS-based sensing device is used to measure both the normal and tangential stress fields at the base of a rough elastomer film in frictional contact with smooth, rigid, glass indentors. We consider successively multicontacts under (i static normal loading by a spherical indentor and (ii frictional steady sliding conditions against a cylindrical indentor, for an increasing normal load. In both cases, the measured fields are compared to elastic calculations assuming (i a smooth interface and (ii Amontons’ friction law. In the static case, significant deviations are observed which decrease with increasing load and which vanish when a lubricant is used. In the steady sliding case, Amontons’ law reproduces rather satisfactorily the experiments provided that the normal/tangential coupling at the contact interface is taken into account. We discuss the origin of the difference between the Amontons fields and the measured ones, in particular the effect of the finite normal and tangential compliances of the multicontact interface.

  12. Circumferential tensile test method for mechanical property evaluation of SiC/SiC tube

    Energy Technology Data Exchange (ETDEWEB)

    Yu, Ju-Hyeon, E-mail: 15096018@mmm.muroran-it.ac.jp [Graduate School, Muroran Institute of Technology, 27-1, Muroran, Hokkaido (Japan); Kishimoto, Hirotatsu [Graduate School, Muroran Institute of Technology, 27-1, Muroran, Hokkaido (Japan); OASIS, Muroran Institute of Technology, 27-1, Muroran, Hokkaido (Japan); Park, Joon-soo [OASIS, Muroran Institute of Technology, 27-1, Muroran, Hokkaido (Japan); Nakazato, Naofumi [Graduate School, Muroran Institute of Technology, 27-1, Muroran, Hokkaido (Japan); Kohyama, Akira [OASIS, Muroran Institute of Technology, 27-1, Muroran, Hokkaido (Japan)

    2016-11-01

    Highlights: • NITE SiC/SiC cooling channel system to be a candidate of divertor system in future. • Hoop strength is one of the important factors for a tube. • This research studies the relationship between deformation and strain of SiC/SiC tube. - Abstract: SiC fiber reinforced/SiC matrix (SiC/SiC) composite is expected to be a candidate material for the first-wall, components in the blanket and divertor of fusion reactors in future. In such components, SiC/SiC composites need to be formed to be various shapes. SiC/SiC tubes has been expected to be employed for blanket and divertor after DEMO reactor, but there is not established mechanical investigation technique. Recent progress of SiC/SiC processing techniques is likely to realize strong, having gas tightness SiC/SiC tubes which will contribute for the development of fusion reactors. This research studies the relationship between deformation and strain of SiC/SiC tube using a circumferential tensile test method to establish a mechanical property investigation method of SiC/SiC tubes.

  13. Experimental and Numerical Investigation of Rock Dynamic Fracture

    Directory of Open Access Journals (Sweden)

    Aliasghar Mirmohammadlou

    2017-06-01

    Full Text Available Rapid development of engineering activities expands through a variety of rock engineering processes such as drilling, blasting, mining and mineral processing. These activities require rock dynamic fracture mechanics method to characterize the rock behavior. Dynamic fracture toughness is an important parameter for the analysis of engineering structures under dynamic loading. Several experimental methods are used for determination of dynamic fracture properties of materials. Among them, the Hopkinson pressure bar and the drop weight have been frequently used for rocks. On the other hand, numerical simulations are very useful in dynamic fracture studies. Among vast variety of numerical techniques, the powerful extended finite element method (XFEM enriches the finite element approximation with appropriate functions extracted from the fracture mechanics solution around a crack-tip. The main advantage of XFEM is its capability in modeling different on a fixed mesh, which can be generated without considering the existence of discontinuities. In this paper, first, the design of a drop weight test setup is presented. Afterwards, the experimental tests on igneous (basalt and calcareous (limestone rocks with single-edge-cracked bend specimen are discussed. Then, each experimental test is modeled with the XFEM code. Finally, the obtained experimental and numerical results are compared. The results indicate that the experimentally predicted dynamic fracture toughness has less than 8 percent difference with calculated dynamic fracture toughness from extended finite element method

  14. HCMM: Soil moisture in relation to geologic structure and lithology, northern California. [Sacramento Valley, California

    Science.gov (United States)

    Rich, E. I. (Principal Investigator)

    1980-01-01

    The author has identified the following significant results. Empirical observations on the ground and examination of aerial color IR photographs indicate that in grassland terrain, the vegetation overlying sandstone tends to become less vigorous sooner in the late spring season than does the area overlain by an adjacent shale unit. The reverse relationship obtains in the fall. These relationships are thought to be a reflection of the relative porosity of each of the units and hence of their ability to retain or lose soil moisture. A comparison of the optically enlarged day and nite IR imagery of the Late Mesozoic interbedded sandstone and shale units along the western margin of the Sacramento Valley, California, taken at seasonally critical times of the year (late spring/early summer and late fall/early winter) reveals subtle seasonal variations of graytone which tend to support the empirical observations after consideration of Sun angle and azimuth, and the internal consistency of the data on each set of satellite imagery.

  15. Performance requirements of the MedAustron beam delivery system

    CERN Document Server

    AUTHOR|(CDS)2073034

    The Austrian hadron therapy center MedAustron is currently under construction with patient treatment planned to commence in 2015. Tumors will be irradiated using proton and carbon ions, for which the steeply rising Bragg curve and finite range offer a better conformity of the dose to the geometrical shape of the tumor compared to conventional photon irradiation. The current trend is to move from passive scattering toward active scanning using a narrow pencil beam in order to reach an even better dose conformation and limit the need of patient specific hardware. The quality of the deposited dose will ultimately depend on the performance of the beam delivery chain: beam profile and extraction stability of the extracted beam, accuracy and ramp rate of the scanning magnet power supplies, and precision of the beam monitors used for verifying the delivered dose. With a sharp lateral penumbra, the transverse dose fall-off can be minimized. This is of particular importance in situations where the lesion is adjace...

  16. GEORG CANTOR’UN SONSUZLARI

    OpenAIRE

    GÜNEY, Zekeriya; KORKMAZ, Nebiye

    2014-01-01

     Özet Georg Cantor, kümeler kuramı ve matematiksel biçimciliğin öncüsüdür. Cantor’un özellikle sonsuzluklarla ilgili çalışmaları matematikte devrim niteliğindedir ve başta topoloji olmak üzere matematiğin çeşitli alanlarında önemli gelişmelere yol açmıştır. Cantor Kuramı’nın pür matematiksel karakteri, matematiğe ve matematik eğitimine yeni bir bakış açısı getirmiş ve matematiğin asıl eğitimsel öneminin, bir zihin jimnastiği olmasından geldiği daha iyi anlaşılır olmuştur. Matematiğin, herhang...

  17. Multimodal Code-pairing and Switching of Visual-verbal Texts in Selected Nigerian Stand-up Comedy Performances

    Directory of Open Access Journals (Sweden)

    Mufutau Temitayo Lamidi

    2017-10-01

    Full Text Available This study examines multimodal pairing and switching of codes as features of visual-verbal texts and how they are used as strategies for evoking humour in Nigerian stand-up comedy performances, an area that has not attracted much scholarly attention. Data were obtained through purposive random sampling and analysed through content analysis. Six DVDs (Vols. 3, 7, 8 & 28 of Nite of a Thousand Laughs; Vols. 27 & 28 of AY LIVE Happiness Edition and 6 video clips (downloaded from the Internet all totalling 8 hours and 20 minutes of play were selected for the study. Incongruity, Layered Meaning and Visual Semiotics serve as theoretical framework. The study identifies different multimodal strategies such as code-pairing and integration in different forms of oral codes, gestures, costume, and symbols; intertextuality; incongruous translations/ deliberate misinterpretations; and mimicry, quotes and paralanguage used to elicit laughter. It suggests that these features are also useful in other speech-making events, and concludes that the integration of codes and modes of communication serves as an effective strategy in evoking humour and laughter in stand-up comedy

  18. Fault-Tolerant Conflict-Free Coloring

    DEFF Research Database (Denmark)

    Abam, Mohammad; de Berg, Mark; Poon, Sheung-Hung

    2008-01-01

    ] introduced conict-free colorings, as de ned next, to model this problem. Let S be a set of n objects, and let R be a, possibly in nite, family of ranges. In this paper, we only consider objects and ranges that are subsets of R2, or sometimes of R1. For a range r 2 R, let S(r) be the subset of objects from S...... intersecting the range r. A conict-free coloring (CF-coloring) of S with respect to R is a coloring of S with the following property [5]: for any range r 2 R for which S(r) 6= ; there is an object o 2 S(r) with a unique color in S(r), that is, with a color not used by any other object in S(r). Trivially......, a conict-free coloring always exists: just assign a different color to each object. However, one would like to nd a coloring with only few colors. This is the conict-free coloring problem. Note that if we take S to be a set of disks|namely, the regions within reach of each base station|and we take R...

  19. Achieving consensus in robot swarms design and analysis of strategies for the best-of-n problem

    CERN Document Server

    Valentini, Gabriele

    2017-01-01

    This book focuses on the design and analysis of collective decision-making strategies for the best-of-n problem. After providing a formalization of the structure of the best-of-n problem supported by a comprehensive survey of the swarm robotics literature, it introduces the functioning of a collective decision-making strategy and identifies a set of mechanisms that are essential for a strategy to solve the best-of-n problem. The best-of-n problem is an abstraction that captures the frequent requirement of a robot swarm to choose one option from of a finite set when optimizing benefits and costs. The book leverages the identification of these mechanisms to develop a modular and model-driven methodology to design collective decision-making strategies and to analyze their performance at different level of abstractions. Lastly, the author provides a series of case studies in which the proposed methodology is used to design different strategies, using robot experiments to show how the designed strategies can b...

  20. Development and acceleration of unstructured mesh-based cfd solver

    Science.gov (United States)

    Emelyanov, V.; Karpenko, A.; Volkov, K.

    2017-06-01

    The study was undertaken as part of a larger effort to establish a common computational fluid dynamics (CFD) code for simulation of internal and external flows and involves some basic validation studies. The governing equations are solved with ¦nite volume code on unstructured meshes. The computational procedure involves reconstruction of the solution in each control volume and extrapolation of the unknowns to find the flow variables on the faces of control volume, solution of Riemann problem for each face of the control volume, and evolution of the time step. The nonlinear CFD solver works in an explicit time-marching fashion, based on a three-step Runge-Kutta stepping procedure. Convergence to a steady state is accelerated by the use of geometric technique and by the application of Jacobi preconditioning for high-speed flows, with a separate low Mach number preconditioning method for use with low-speed flows. The CFD code is implemented on graphics processing units (GPUs). Speedup of solution on GPUs with respect to solution on central processing units (CPU) is compared with the use of different meshes and different methods of distribution of input data into blocks. The results obtained provide promising perspective for designing a GPU-based software framework for applications in CFD.

  1. NONLINEAR MULTIGRID SOLVER EXPLOITING AMGe COARSE SPACES WITH APPROXIMATION PROPERTIES

    Energy Technology Data Exchange (ETDEWEB)

    Christensen, Max La Cour [Technical Univ. of Denmark, Lyngby (Denmark); Villa, Umberto E. [Univ. of Texas, Austin, TX (United States); Engsig-Karup, Allan P. [Technical Univ. of Denmark, Lyngby (Denmark); Vassilevski, Panayot S. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-01-22

    The paper introduces a nonlinear multigrid solver for mixed nite element discretizations based on the Full Approximation Scheme (FAS) and element-based Algebraic Multigrid (AMGe). The main motivation to use FAS for unstruc- tured problems is the guaranteed approximation property of the AMGe coarse spaces that were developed recently at Lawrence Livermore National Laboratory. These give the ability to derive stable and accurate coarse nonlinear discretization problems. The previous attempts (including ones with the original AMGe method, [5, 11]), were less successful due to lack of such good approximation properties of the coarse spaces. With coarse spaces with approximation properties, our FAS approach on un- structured meshes should be as powerful/successful as FAS on geometrically re ned meshes. For comparison, Newton's method and Picard iterations with an inner state-of-the-art linear solver is compared to FAS on a nonlinear saddle point problem with applications to porous media ow. It is demonstrated that FAS is faster than Newton's method and Picard iterations for the experiments considered here. Due to the guaranteed approximation properties of our AMGe, the coarse spaces are very accurate, providing a solver with the potential for mesh-independent convergence on general unstructured meshes.

  2. COMPARISON OF THE THERMAL SHOCK RESlST ANCE IN Alı03-SG AND Zr02-l2°/oSi+AI COATING SYSTEMS

    Directory of Open Access Journals (Sweden)

    AHMET ÖZEL

    1998-12-01

    Full Text Available In this investigation� thennal and structure fınite eleınent analysis has been employed to aııalyse tlıe level of the thennal stresses developed in A1203-SG and Zr02- 12%Si+ Al coatings subjected to them1al loading. Systeıns \\Vith 0.4nıın coating thickness and 4nıın substrate ınaterial thickness were nıodelled. Alumina -Ductile Ca st Iran coatings \\Vith Ni Al, Ni Cr AIY, NiCoCrAIY inte rlayer \\vere also modelled. Noıninal and shear stresses at the cıitical interface regions ( filnı /inter laycr/substrate \\vere obtained and compared. The results showed that the Al203-SG coatings has higher tlıennal shock resistance than Zr02- 12o/oSi+Al coating systeıns. Furthern1ore� tlıe inte rlayer thickness and ınate rial coınbinations have a significant influence on the level of the devcloped tl1ennal stresses. It is also concluded that the finite eleınent technique can be used to optiınise the design and the processing of ceranı ic . coatıngs.

  3. Números Tribonacci, S-unidades y triplas diofánticas

    Directory of Open Access Journals (Sweden)

    Carlos Alexis Gómez Ruiz

    2015-12-01

    Full Text Available La sucesión Tribonacci T := {Tn}n≥0 tiene valores iniciales T0 = T1 =0,T2 =1 y cada término posterior es la suma de los tres términos precedentes. En este artículo, estudiamos la ecuación Tn = kTm, donde k es una S-unidad, para un conjunto finito S de primos. Particularmente, mostramos que cualquier par de miembros de la tripla diofántica {9, 56, 103} asociada a T +1, no se puede extender a otra tripla diofántica asociada a T +1. abstract.Tribonacci numbers, S-units and diophantine triples The Tribonacci sequence T := {Tn}n≥0 has initial values T0 = T1 =0, T2 =1 and each term afterwards is the sum of the preceding three terms. In this paper, we study the equation Tn = kTm, where k is an S-unit, for a finite set S of primes. In particular, we show that any two members of the diophantine triple {9, 56, 103} associated to T +1, can not be extended to other diophantine triple associated to T +1.

  4. Towards Optimal Transport Networks

    Directory of Open Access Journals (Sweden)

    Erik P. Vargo

    2010-08-01

    Full Text Available Our ultimate goal is to design transportation net- works whose dynamic performance metrics (e.g. pas- senger throughput, passenger delay, and insensitivity to weather disturbances are optimized. Here the fo- cus is on optimizing static features of the network that are known to directly affect the network dynamics. First, we present simulation results which support a connection between maximizing the first non-trivial eigenvalue of a network's Laplacian and superior air- port network performance. Then, we explore the ef- fectiveness of a tabu search heuristic for optimizing this metric by comparing experimental results to the- oretical upper bounds. We also consider generating upper bounds on a network's algebraic connectivity via the solution of semidefinite programming (SDP relaxations. A modification of an existing subgraph extraction algorithm is implemented to explore the underlying regional structures in the U.S. airport net- work, with the hope that the resulting localized struc- tures can be optimized independently and reconnected via a "backbone" network to achieve superior network performance.

  5. EKONOMİK KARŞILIKLI BAĞIMLILIK KAPSAMINDA AB-ÇİN İLİŞKİLERİ

    OpenAIRE

    Akçadağ Alagöz, Emine

    2017-01-01

    Bu çalışma, AB ve Çin arasındaki ekonomik ve ticari ilişkileri Keohane ve Nye tarafından formüle edilen karşılıklı bağımlılık teorisi çerçevesinde irdeleme amacı taşımaktadır. Farklı ekonomik parametreler aracılığıyla bu iki önemli güç arasındaki ekonomik ve ticari ilişkilerin mevcut durumu analiz edilerek, karşılıklı bağımlılığın asimetrik niteliği ortaya konulacaktır. Karşılıklı bağımlılıktaki asimetrilerin bir güç unsuru olduğu varsayımından hareketle, bu asimetrik karşılıklı bağımlılığın ...

  6. PRESENTEEISM: NEDENLERİ, YARATTIĞI ÖRGÜTSEL SORUNLAR VE ÇÖZÜM ÖNERİLERİ ÜZERİNE BİR ALANYAZIN TARAMASI

    OpenAIRE

    ÇOBAN, Ömer; HARMAN, Serhat

    2012-01-01

    Presenteeism, işgörenin rahatsızlığı bulunmasına rağmen işe gitmesini ve bu durumdan kaynaklanan verimlilik kayıplarını ifade etmektedir. Türkiye’de presenteeism ile ilgili görgül çalışma sayısı yok denecek kadar azdır. Bu nedenle, presenteeism kavramı ile ilgili daha önce yapılmış çalışmaların incelendiği alanyazın taraması niteliğinde nitel bir çalışma gerçekleştirilmiştir. Yapılan alanyazın taraması sonucunda 28 adet tam metin çalışmaya ulaşılmıştır. 28 adet çalışmanın incelenmesinin ardın...

  7. The attempt to legalize the church administration of the Leningrad’s diocese in 1926 as the prehistory of the “josephite-alexis” division

    Directory of Open Access Journals (Sweden)

    Mazyrin Aleksandr, priest

    2013-04-01

    Full Text Available The article deals with the failed attempt to organize and legalize the Leningrad’s diocesan administration of the Russian Orthodox Church in 1926. At the suggestion of OGPU the group of Leningrad’s clergy has propounded legalization. Bishop Alexius (Simanskiy became the leader of the group in the summer of 1926. The initiative group’s activity aroused suspicion of the part of the Leningrad clergy assuring a top church management to transfer bishop Alexey to another diocese and to appoint Joseph (Petrovyh to be a Leningrad metropolitan. The conflict situation was complicated by the provocative politics of a state authority. It prevented metropolitan Joseph from carrying out his duties of ruling archbishop and, on the contrary, permitted the initiative group to hold a meeting led by bishop (archbishop Alexius. All attempts of church workers to find the unconflicted way out were unsuccessful. The author analyses arguments of supporters and opponents of the diocesan legalization, estimates the correlation between personal and based on principles motives. He investigates the position of church authority represented by metropolitan Sergey (Stragorodskiy. The author considers either side was not unjust one in the Leningrad church collision in 1926. Only the politics of the soviet power that used legalization as the demoralization’s instrument of the Church was defi nitely malicious.

  8. AceTree: a tool for visual analysis of Caenorhabditis elegans embryogenesis

    Directory of Open Access Journals (Sweden)

    Araya Carlos L

    2006-06-01

    Full Text Available Abstract Background The invariant lineage of the nematode Caenorhabditis elegans has potential as a powerful tool for the description of mutant phenotypes and gene expression patterns. We previously described procedures for the imaging and automatic extraction of the cell lineage from C. elegans embryos. That method uses time-lapse confocal imaging of a strain expressing histone-GFP fusions and a software package, StarryNite, processes the thousands of images and produces output files that describe the location and lineage relationship of each nucleus at each time point. Results We have developed a companion software package, AceTree, which links the images and the annotations using tree representations of the lineage. This facilitates curation and editing of the lineage. AceTree also contains powerful visualization and interpretive tools, such as space filling models and tree-based expression patterning, that can be used to extract biological significance from the data. Conclusion By pairing a fast lineaging program written in C with a user interface program written in Java we have produced a powerful software suite for exploring embryonic development.

  9. Competencias conductuales, estrés y calidad de vida en personas VIH+ 100% adherentes. Un análisis en función del estadio clínico de infección

    Directory of Open Access Journals (Sweden)

    Oscar Cázares Robles

    2010-01-01

    Full Text Available A cross-sectional study was carried out with themain objective to assess the effects of psychologicalvariables on quality of life in terms on the clinicalstage of the infection among 51 HIV+ persons,whom were 100% adherent. The physical health dimensionyielded results as follows: in clinical stageA an effect of current behavioral competencies wasobserved (F [1, 13] = 13,372; p < 0,001; in stage B,effects included low stress-related factors with oftolerance to ambiguity and tolerance to frustration(F [2, 17] = 19,648; p < 0,001, and in stage C noeffect was apparent. For the dimension of psychologicalhealth, results revealed: in clinical stage A,an effect of current behavioral competencies (F[1, 13] = 4,899; p < 0,05; in B, stage no effect wasfound, whereas in stage C low stress-related toleranceto ambiguity had an effect (F [1, 14] = 4,906;p < 0,05. The study suggests defi nitely effects ofpsychological variables on quality of life, includingboth physical and psychological dimensions, withdifferential role in function of the clinical stage ofthe infection. Some implications are discussed forthe development of intervention programs, aimedat improving adherence to medical treatment andquality of life among HIV+ persons.

  10. Arrhenius Rate: constant volume burn

    Energy Technology Data Exchange (ETDEWEB)

    Menikoff, Ralph [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-12-06

    A constant volume burn occurs for an idealized initial state in which a large volume of reactants at rest is suddenly raised to a high temperature and begins to burn. Due to the uniform spatial state, there is no fluid motion and no heat conduction. This reduces the time evolu tion to an ODE for the reaction progress variable. With an Arrhenius reaction rate, two characteristics of thermal ignition are illustrated: induction time and thermal runaway. The Frank-Kamenetskii approximation then leads to a simple expression for the adiabatic induction time. For a first order reaction, the analytic solution is derived and used to illustrate the effect of varying the activation temperature; in particular, on the induction time. In general, the ODE can be solved numerically. This is used to illustrate the effect of varying the reaction order. We note that for a first order reaction, the time evolution of the reaction progress variable has an exponential tail. In contrast, for a reaction order less than one, the reaction completes in a nite time. The reaction order also affects the induction time.

  11. On performance of Krylov smoothing for fully-coupled AMG preconditioners for VMS resistive MHD

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Paul T. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Shadid, John N. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States). Department of Mathematics and Statistics,; Tsuji, Paul H. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-11-01

    Here, this study explores the performance and scaling of a GMRES Krylov method employed as a smoother for an algebraic multigrid (AMG) preconditioned Newton- Krylov solution approach applied to a fully-implicit variational multiscale (VMS) nite element (FE) resistive magnetohydrodynamics (MHD) formulation. In this context a Newton iteration is used for the nonlinear system and a Krylov (GMRES) method is employed for the linear subsystems. The efficiency of this approach is critically dependent on the scalability and performance of the AMG preconditioner for the linear solutions and the performance of the smoothers play a critical role. Krylov smoothers are considered in an attempt to reduce the time and memory requirements of existing robust smoothers based on additive Schwarz domain decomposition (DD) with incomplete LU factorization solves on each subdomain. Three time dependent resistive MHD test cases are considered to evaluate the method. The results demonstrate that the GMRES smoother can be faster due to a decrease in the preconditioner setup time and a reduction in outer GMRESR solver iterations, and requires less memory (typically 35% less memory for global GMRES smoother) than the DD ILU smoother.

  12. Quench simulations for superconducting elements in the LHC accelerator

    CERN Document Server

    Sonnemann, F

    2000-01-01

    The design of he protection system for he superconducting elements in an accel- erator such as the Large Hadron Collider (LHC),now under construction at CERN, requires a detailed understanding of the hermo-hydraulic and electrodynamic pro- cesses during a quench.A numerical program (SPQR -Simulation Program for Quench Research)has been developed o evaluate temperature and voltage dis ri- butions during a quench as a func ion of space and ime.The quench process is simulated by approximating the heat balance equation with the finite di fference method in presence of variable cooling and powering conditions.The simulation predicts quench propagation along a superconducting cable,forced quenching with heaters,impact of eddy curren s induced by a magnetic field change,and heat trans- fer hrough an insulation layer in o helium,an adjacen conductor or other material. The simulation studies allowed a better understanding of experimental quench data and were used for determining the adequ...

  13. Spin degeneracy of Hadronic molecules in the heavy quark region

    Science.gov (United States)

    Yamaguchi, Yasuhiro

    2018-03-01

    Hadronic molecules have been considered to appear close to the hadron-hadron threshold. For the heavy mesons, \\bar D and B, the one pion exchange potential is enhanced by the mass degeneracy of heavy pseudoscalar and vector mesons, caused by the heavy quark spin symmetry. In this study, we investigate new hadronic molecules formed by the heavy meson {P≤ft( * \\right)} = {\\bar D≤ft( * \\right)},{B≤ft( * \\right)} and a nucleon N, being P (*) N. As the interaction between P (*) and N, the pion and vector meson (ρ and ω) exchanges are considered. By solving the coupled-channel Schrödinger equations for P N and P*N, we obtain the bound and resonant states in the charm and bottom sectors, and in the in nite heavy quark mass limit. In the molecular states, the PN - P*N mixing effect is important, where the tensor force of the one pion exchange potential generates the strong attraction. In the heavy quark limit, we obtain the degeneracy of the states for J P = 1/2- and 3/2-.

  14. Shear dominated failure in the 'hat' specimen from the 2013 Sandia Fracture Challenge.

    Energy Technology Data Exchange (ETDEWEB)

    Corona, Edmundo [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2016-11-01

    The objective of this memo is to present a brief report of the progress achieved during FY2016 on the investigation of ductile failure in the 2013 Sandia Fracture Challenge specimen. It is a follow-up to the results of an experimental investigation presented in [1]. The experi- mental investigation was conducted with both the original steel A286 material used in the fracture challenge as well as with Al 7075-T651. The new results include further microscopy work for the steel A286 specimens, failure criterion veri cation for both materials and the implementation of a nite element model containing `material imperfections' to simulate the limit load in the response of the steel A286 specimens. Funding used to conduct the work presented here was provided by the ASC V&V program on validation of shear failure (Benjamin Reedlunn, PI) and from Sandia's LDRD program. This memo assumes that the reader is familiar with the material in [1].

  15. A novel non-thermostable deuterolysin from Aspergillus oryzae.

    Science.gov (United States)

    Maeda, Hiroshi; Katase, Toru; Sakai, Daisuke; Takeuchi, Michio; Kusumoto, Ken-Ichi; Amano, Hitoshi; Ishida, Hiroki; Abe, Keietsu; Yamagata, Youhei

    2016-09-01

    Three putative deuterolysin (EC 3.4.24.29) genes (deuA, deuB, and deuC) were found in the Aspergillus oryzae genome database ( http://www.bio.nite.go.jp/dogan/project/view/AO ). One of these genes, deuA, was corresponding to NpII gene, previously reported. DeuA and DeuB were overexpressed by recombinant A. oryzae and were purified. The degradation profiles against protein substrates of both enzymes were similar, but DeuB showed wider substrate specificity against peptidyl MCA-substrates compared with DeuA. Enzymatic profiles of DeuB except for thermostability also resembled those of DeuA. DeuB was inactivated by heat treatment above 80° C, different from thermostable DeuA. Transcription analysis in wild type A. oryzae showed only deuB was expressed in liquid culture, and the addition of the proteinous substrate upregulated the transcription. Furthermore, the NaNO3 addition seems to eliminate the effect of proteinous substrate for the transcription of deuB.

  16. MASCARA-2 b. A hot Jupiter transiting the mV = 7.6 A-star HD 185603

    Science.gov (United States)

    Talens, G. J. J.; Justesen, A. B.; Albrecht, S.; McCormac, J.; Van Eylen, V.; Otten, G. P. P. L.; Murgas, F.; Palle, E.; Pollacco, D.; Stuik, R.; Spronck, J. F. P.; Lesage, A.-L.; Grundahl, F.; Fredslund Andersen, M.; Antoci, V.; Snellen, I. A. G.

    2018-04-01

    In this paper we present MASCARA-2 b, a hot Jupiter transiting the mV = 7.6 A2 star HD 185603. Since early 2015, MASCARA has taken more than 1.6 million flux measurements of the star, corresponding to a total of almost 3000 h of observations, revealing a periodic dimming in the flux with a depth of 1.3%. Photometric follow-up observations were performed with the NITES and IAC80 telescopes and spectroscopic measurements were obtained with the Hertzsprung SONG telescope. We find MASCARA-2 b orbits HD 185603 with a period of 3.4741119-0.000006+0.000005 at a distance of 0.057 ± 0.006 au, has a radius of 1.83 ± 0.07 RJ and place a 99% upper limit on the mass of http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/612/A57

  17. The Multi一physics Research on I ron一Core Vibration Noise of Power Reactor

    Directory of Open Access Journals (Sweden)

    LI U Ja

    2017-02-01

    Full Text Available On the basis of theoretical research releted to the magnetostriction and maxwell’.s equations,the fi- nite element coupling in the transient electromagnetic field coupling,structure and sound field coupling has been developed In thts paper by using the flnlte element sOftWare CO}IS01., Whleh establish a serles three-phase COT’e re- actor model, to analyzing the power frequency magnetic field distribution,core magnetostrictive displacement,max- well force displacement and sound pressure level of the three-phase series core reactor under the power frequency working state. According to transient magnetic field distribution in the simulation of the reactor,the magnetic flux density distribution inside the reactor and the vibration displacement distribution are calculated,the acoustic field distribution is measured alao. It is shown that physical field simulation results and measured data are basically in consisent by experiment,it is proved multi-physics coupling is an effective method for forecast of noise.

  18. Confronting The Threat of Relativism : Views from Islamic Philosophy

    Directory of Open Access Journals (Sweden)

    Moh. Nasrin Nasir

    2011-12-01

    Full Text Available Today the issue of ethics and most importantly moral values are being seen as merely based upon opinions and emotions. This has led towards a relativisation of moral values and thus towards the erosion of values amongst societies. This paper would analyze and suggest ways of  preserving values for the structuring of developmental ideas for thinkers in developing countries. Coming from an Islamic standpoint the ideas of virtues have to be rooted within the transcendent or the Absolute. Such defense of virtues are definitely beyond the grasp of usual western philosophy as the philosophy that is propagated by Islam is not a mere intellectual exercise but a transformative exercise which connects the profane to the sacred, the outer to the inner and the physical world to the spiritual world. The loci or the focus point is the human being thus developing the idea of being human via the inculcation of and preservation of virtues is of utmost importance. The virtues most important in Islam such as justice, moderation or temperance have been discussed by various muslim philosophers. These virtues are rooted in the Absolute and through His presence in the various levels of existences are they known. For Using ideas from malay cosmology and soteriology based upon the writings of Malay scholars, this paper would highlight ways to preserve and ensure Malay society does not fall under the threat of relativism of moral values.

  19. Analysis of Multi Muon Events in the L3 Detector

    CERN Document Server

    Schmitt, Volker

    2000-01-01

    The muon density distribution in air showers initiated by osmi parti les is sensitive to the hemi al omposition of osmi rays. The density an be measured via the multipli ity distribution in a nite size dete tor, as it is L3. With a shallow depth of 30 meters under ground, the dete tor provides an ex ellent fa ility to measure a high muon rate, but being shielded from the hadroni and ele troni shower omponent. Subje t of this thesis is the des ription of the L3 Cosmi s experiment (L3+C), whi h is taking data sin e May 1999 and the analysis of muon bundles in the large magneti spe trometer of L3. The new osmi trigger and readout system is brie y des ribed. The in uen e of dierent primaries on the multipli ity distribution has been investigated using Monte Carlo event samples, generated with the CORSIKA program. The simulation results showed that L3+C measures in the region of the \\knee" of the primary spe trum of osmi rays. A new pattern re ognition has been developed and added to the re onstru tion ode, whi h ...

  20. La marâtre dans les contes merveilleux du Yémen

    Directory of Open Access Journals (Sweden)

    Jean Lambert

    2010-07-01

    Full Text Available La figure de la marâtre est particulièrement répandue dans les contes merveilleux du Yémen. Comme en Europe, ce genre de la littérature orale remplit des fonctions d’éducation enfantine, mais il s’adresse aussi aux adultes. Au Yémen, la figure de la marâtre doit être remise dans son contexte socio-économique des familles recomposées dans une société encore rurale et patriarcale. Sans négliger le contexte de performance du conte au Yémen, ni l’intertextualité des différentes formes de contes (se rapprochant du mythe et de l’histoire de ruse, la présentation et l’analyse de cinq contes yéménites et de diverses variantes permettent d’explorer les thèmes fantasmatiques de la mère cruelle et de la monstruosité des autres membres de la famille nucléaire. D’un autre côté, inséparables du merveilleux, les agents magiques sont principalement des animaux qui symbolisent et idéalisent des degrés de parenté proche. Tout en déformant les enjeux de la vie réelle dans un sens moral, le conte yéménite révèle, par ses structures symboliques, l’existence de ce que l’on peut appeler le « complexe anthropologique » de la marâtre, et qui s’exprime aussi, au Yémen, sous d’autres formes littéraires orales qui restent encore à explorer.The literary figure of the stepmother is widely spread in the fairy tales in Yemen. Like in Europe, this genre fulfils educative functions for the children, but it is also addressed to adults. In Yemen, the figure of the stepmother must be put in perspective in the socio-economical context of recomposed families in a still rural and patriarchal society. Without neglecting the performance context of the narration, neither the intertextual weaving of different forms of “tales” (myths, tricksters tales, the presentation and the analysis of five Yemeni tales and their variants allows us to explore the fantasy themes of the cruel mother and other kinds of monstrous kinship

  1. Chemical Looping Combustion of Solid Fuels in a 10 kWth Unit Combustion de charge solide en boucle chimique dans une unité de 10 kWth

    Directory of Open Access Journals (Sweden)

    Berguerand N.

    2011-02-01

    Full Text Available The present study is based on previous results from batch experiments which were conducted in a 10 kWth chemical looping combustor for solid fuels using ilmenite, an iron titanium oxide, as the oxygen carrier with two solid fuels: a Mexican petroleum coke and a South African bituminous coal. These experiments involved testing at different fuel reactor temperatures, up to 1030°C, and different particle circulation rates between the air and fuel reactors. Previous results enabled modeling of the reactor system. In particular, it was possible to derive a correlation between measured operational data and actual circulation mass flow, as well as a model that describes the carbon capture efficiency as a function of the residence time and the char reactivity. Moreover, the kinetics of char conversion could be modeled and results showed good agreement with experimental values. The purpose of the present study was to complete these results by developing a model to predict the conversion of syngas with ilmenite in the fuel reactor. Here, kinetic data from investigations of ilmenite in TGA and batch fluidized bed reactors were used. Results were compared with the actual conversions during operation in this 10 kWth unit. Cette étude est basée sur des résultats antérieurs obtenus dans une unité de combustion de charges solides en boucle chimique d’une puissance de 10 kWth. Le transporteur d’oxygène utilisé est de l’ilménite, un minerai de fer et de titane, et les charges solides étudiées sont, d’une part, un coke de pétrole mexicain et, d’autre part, un charbon bitumineux sud africain. Les résultats expérimentaux ont été obtenus à des températures allant jusqu’à 1030°C avec différents débits de transporteur d’oxygène entre les réacteurs d’oxydation et de réduction. La modélisation de la combustion en boucle chimique de charges solides a déjà permis d’établir une corrélation entre le débit de circulation de

  2. Expanding the molecular toolbox for Lactococcus lactis: construction of an inducible thioredoxin gene fusion expression system

    LENUS (Irish Health Repository)

    Douillard, Francois P

    2011-08-09

    Abstract Background The development of the Nisin Inducible Controlled Expression (NICE) system in the food-grade bacterium Lactococcus lactis subsp. cremoris represents a cornerstone in the use of Gram-positive bacterial expression systems for biotechnological purposes. However, proteins that are subjected to such over-expression in L. lactis may suffer from improper folding, inclusion body formation and\\/or protein degradation, thereby significantly reducing the yield of soluble target protein. Although such drawbacks are not specific to L. lactis, no molecular tools have been developed to prevent or circumvent these recurrent problems of protein expression in L. lactis. Results Mimicking thioredoxin gene fusion systems available for E. coli, two nisin-inducible expression vectors were constructed to over-produce various proteins in L. lactis as thioredoxin fusion proteins. In this study, we demonstrate that our novel L. lactis fusion partner expression vectors allow high-level expression of soluble heterologous proteins Tuc2009 ORF40, Bbr_0140 and Tuc2009 BppU\\/BppL that were previously insoluble or not expressed using existing L. lactis expression vectors. Over-expressed proteins were subsequently purified by Ni-TED affinity chromatography. Intact heterologous proteins were detected by immunoblotting analyses. We also show that the thioredoxin moiety of the purified fusion protein was specifically and efficiently cleaved off by enterokinase treatment. Conclusions This study is the first description of a thioredoxin gene fusion expression system, purposely developed to circumvent problems associated with protein over-expression in L. lactis. It was shown to prevent protein insolubility and degradation, allowing sufficient production of soluble proteins for further structural and functional characterization.

  3. Old Testament Anthropology in the Translation of the Septuagint: the Composition of the Human Being (Fundamental Principles

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    . VEVYURKO

    2015-02-01

    Full Text Available The author examines the meaning of the Old Testament corpus contained in the Greek translation of the Septuagint in order to better understand the anthropology of the Bible on the basis of the work of classifi cation done by G. Wolff in his survey. The author studies the derivation of terminology and defines its original meaning. This is fundamental for the study of the way the human person was conceived on the cusp of the Old and New Testaments. The Septuagint translation may be analyzed under two aspects: etymology and interpretation. In many cases, the translation allows us to understand more clearly how the translators understood not only individual words but also whole concepts. The author understands the term biblical anthropology in the German sense as the description of the nature of the human person and his place in the world from the point of view of the Bible. The author highlights the semantics underlying the use of the term body (soma, which in itself is poorly conveyed by ancient Hebrew, but which is used in the Septuagint in a way consistent with that employed by the New Testament. The word body describes the figure of the human person with great objectivity and is itself replete with definite descriptive attributes. Also new is the understanding of the word spirit (pneuma, which, in this case, is used to describe a person. In this context, it begins to enter the anthropological lexicon and at the same time foreshadows its use in the problematic surrounding early-Christian trichotomy.

  4. Depth camera-based 3D hand gesture controls with immersive tactile feedback for natural mid-air gesture interactions.

    Science.gov (United States)

    Kim, Kwangtaek; Kim, Joongrock; Choi, Jaesung; Kim, Junghyun; Lee, Sangyoun

    2015-01-08

    Vision-based hand gesture interactions are natural and intuitive when interacting with computers, since we naturally exploit gestures to communicate with other people. However, it is agreed that users suffer from discomfort and fatigue when using gesture-controlled interfaces, due to the lack of physical feedback. To solve the problem, we propose a novel complete solution of a hand gesture control system employing immersive tactile feedback to the user's hand. For this goal, we first developed a fast and accurate hand-tracking algorithm with a Kinect sensor using the proposed MLBP (modified local binary pattern) that can efficiently analyze 3D shapes in depth images. The superiority of our tracking method was verified in terms of tracking accuracy and speed by comparing with existing methods, Natural Interaction Technology for End-user (NITE), 3D Hand Tracker and CamShift. As the second step, a new tactile feedback technology with a piezoelectric actuator has been developed and integrated into the developed hand tracking algorithm, including the DTW (dynamic time warping) gesture recognition algorithm for a complete solution of an immersive gesture control system. The quantitative and qualitative evaluations of the integrated system were conducted with human subjects, and the results demonstrate that our gesture control with tactile feedback is a promising technology compared to a vision-based gesture control system that has typically no feedback for the user's gesture inputs. Our study provides researchers and designers with informative guidelines to develop more natural gesture control systems or immersive user interfaces with haptic feedback.

  5. Depth Camera-Based 3D Hand Gesture Controls with Immersive Tactile Feedback for Natural Mid-Air Gesture Interactions

    Directory of Open Access Journals (Sweden)

    Kwangtaek Kim

    2015-01-01

    Full Text Available Vision-based hand gesture interactions are natural and intuitive when interacting with computers, since we naturally exploit gestures to communicate with other people. However, it is agreed that users suffer from discomfort and fatigue when using gesture-controlled interfaces, due to the lack of physical feedback. To solve the problem, we propose a novel complete solution of a hand gesture control system employing immersive tactile feedback to the user’s hand. For this goal, we first developed a fast and accurate hand-tracking algorithm with a Kinect sensor using the proposed MLBP (modified local binary pattern that can efficiently analyze 3D shapes in depth images. The superiority of our tracking method was verified in terms of tracking accuracy and speed by comparing with existing methods, Natural Interaction Technology for End-user (NITE, 3D Hand Tracker and CamShift. As the second step, a new tactile feedback technology with a piezoelectric actuator has been developed and integrated into the developed hand tracking algorithm, including the DTW (dynamic time warping gesture recognition algorithm for a complete solution of an immersive gesture control system. The quantitative and qualitative evaluations of the integrated system were conducted with human subjects, and the results demonstrate that our gesture control with tactile feedback is a promising technology compared to a vision-based gesture control system that has typically no feedback for the user’s gesture inputs. Our study provides researchers and designers with informative guidelines to develop more natural gesture control systems or immersive user interfaces with haptic feedback.

  6. A Geometric Approach to Modeling Microstructurally Small Fatigue Crack Formation. 2; Simulation and Prediction of Crack Nucleation in AA 7075-T651

    Science.gov (United States)

    Hochhalter, Jake D.; Littlewood, David J.; Christ, Robert J., Jr.; Veilleux, M. G.; Bozek, J. E.; Ingraffea, A. R.; Maniatty, Antionette M.

    2010-01-01

    The objective of this paper is to develop further a framework for computationally modeling microstructurally small fatigue crack growth in AA 7075-T651 [1]. The focus is on the nucleation event, when a crack extends from within a second-phase particle into a surrounding grain, since this has been observed to be an initiating mechanism for fatigue crack growth in this alloy. It is hypothesized that nucleation can be predicted by computing a non-local nucleation metric near the crack front. The hypothesis is tested by employing a combination of experimentation and nite element modeling in which various slip-based and energy-based nucleation metrics are tested for validity, where each metric is derived from a continuum crystal plasticity formulation. To investigate each metric, a non-local procedure is developed for the calculation of nucleation metrics in the neighborhood of a crack front. Initially, an idealized baseline model consisting of a single grain containing a semi-ellipsoidal surface particle is studied to investigate the dependence of each nucleation metric on lattice orientation, number of load cycles, and non-local regularization method. This is followed by a comparison of experimental observations and computational results for microstructural models constructed by replicating the observed microstructural geometry near second-phase particles in fatigue specimens. It is found that orientation strongly influences the direction of slip localization and, as a result, in uences the nucleation mechanism. Also, the baseline models, replication models, and past experimental observation consistently suggest that a set of particular grain orientations is most likely to nucleate fatigue cracks. It is found that a continuum crystal plasticity model and a non-local nucleation metric can be used to predict the nucleation event in AA 7075-T651. However, nucleation metric threshold values that correspond to various nucleation governing mechanisms must be calibrated.

  7. Devre Mülkün Hukuki Yapısı ve Tapuya Kayıt Sistemi: Kızılcahamam Örneği

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    F. Feza YILMAM MENDEŞ

    2017-01-01

    Full Text Available Bu çalışmada; çağımızın en büyük gereksinimlerinden, dinlenme ve tatil ihtiyacını daha makul fiyatlarla gidermek için tercih edilebilir iyi bir alternatif olan devre mülkün, hukuki niteliği ve Türkiye uygulamasında devre mülkün tapu sicilinde kayıt altına alınması örnek olay üzerinden incelenip, kayıt işlemlerinin daha etkin yapılabilmesi yönünde önerilerde bulunulması amaçlanmaktadır. Öneriler, tapu kütüğü defterinin daha etkin kullanılması, işlemlerin kolaylaştırılması, bunun sonucunda işlemsel hata payının en düşük seviyeye indirgenmesi, taşınmazın devre mülk olarak kullanılmasından dolayı ortaya çıkan değer artışının kayıt altına alınması ve bu artı değerin vergilenmesi yönünde olarak sıralanabilir.

  8. Characterizing Wheel-Soil Interaction Loads Using Meshfree Finite Element Methods: A Sensitivity Analysis for Design Trade Studies

    Science.gov (United States)

    Contreras, Michael T.; Trease, Brian P.; Bojanowski, Cezary; Kulakx, Ronald F.

    2013-01-01

    A wheel experiencing sinkage and slippage events poses a high risk to planetary rover missions as evidenced by the mobility challenges endured by the Mars Exploration Rover (MER) project. Current wheel design practice utilizes loads derived from a series of events in the life cycle of the rover which do not include (1) failure metrics related to wheel sinkage and slippage and (2) performance trade-offs based on grouser placement/orientation. Wheel designs are rigorously tested experimentally through a variety of drive scenarios and simulated soil environments; however, a robust simulation capability is still in development due to myriad of complex interaction phenomena that contribute to wheel sinkage and slippage conditions such as soil composition, large deformation soil behavior, wheel geometry, nonlinear contact forces, terrain irregularity, etc. For the purposes of modeling wheel sinkage and slippage at an engineering scale, meshfree nite element approaches enable simulations that capture su cient detail of wheel-soil interaction while remaining computationally feasible. This study implements the JPL wheel-soil benchmark problem in the commercial code environment utilizing the large deformation modeling capability of Smooth Particle Hydrodynamics (SPH) meshfree methods. The nominal, benchmark wheel-soil interaction model that produces numerically stable and physically realistic results is presented and simulations are shown for both wheel traverse and wheel sinkage cases. A sensitivity analysis developing the capability and framework for future ight applications is conducted to illustrate the importance of perturbations to critical material properties and parameters. Implementation of the proposed soil-wheel interaction simulation capability and associated sensitivity framework has the potential to reduce experimentation cost and improve the early stage wheel design proce

  9. Objects of consciousness

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    Donald David Hoffman

    2014-06-01

    Full Text Available Current models of visual perception typically assume that human vision estimates true properties of physical objects, properties that exist even if unperceived. However, recent studies of perceptual evolution, using evolutionary games and genetic algorithms, reveal that natural selection often drives true perceptions to extinction when they compete with perceptions tuned to fitness rather than truth: Perception guides adaptive behavior; it does not estimate a preexisting physical truth. Moreover, shifting from evolutionary biology to quantum physics, there is reason to disbelieve in preexist-ing physical truths: Certain interpretations of quantum theory deny that dynamical properties of physical objects have defi-nite values when unobserved. In some of these interpretations the observer is fundamental, and wave functions are com-pendia of subjective probabilities, not preexisting elements of physical reality. These two considerations, from evolutionary biology and quantum physics, suggest that current models of object perception require fundamental reformulation. Here we begin such a reformulation, starting with a formal model of consciousness that we call a conscious agent. We develop the dynamics of interacting conscious agents, and study how the perception of objects and space-time can emerge from such dynamics. We show that one particular object, the quantum free particle, has a wave function that is identical in form to the harmonic functions that characterize the asymptotic dynamics of conscious agents; particles are vibrations not of strings but of interacting conscious agents. This allows us to reinterpret physical properties such as position, momentum, and energy as properties of interacting conscious agents, rather than as preexisting physical truths. We sketch how this approach might extend to the perception of relativistic quantum objects, and to classical objects of macroscopic scale.

  10. Contributions possibles des innovations génétiques pour l'améloration de la compétitivité des filières cotonnières africaines

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    Mergeai G.

    2006-01-01

    Full Text Available Possible contributions of genetic innovations to improvement in the competitivity of the cotton production and marketingchains in Africa. The 3 components of the profi tability of the cotton production and marketing chains which can beimproved following the development of genetic innovations concern: (i the production cost of the cottonseed, thanks tothe introduction in the cultivated varieties of genes allowing to decrease the impact of the biotic (weeds, pests and diseasesand abiotic (drought, soil poverty, acidity and salinity constraints, (ii the cost of the ginning of the cottonseed and (iii thequality of the various products of the cotton plant (fi ber, cakes, oil. The priorities to be retained for Africa regarding these3 components must absolutely take into account the characteristics of the local farming systems. In Africa, most of cottonis produced in farms of relatively small size with a low level of mechanization of the farming operations and a recourseto quantities of manure and pesticides defi nitely lower than elsewhere in the world whereas the levels of biotic and abioticconstraints are at least as high there as in the other continents. In this context, the priority of the genetic improvement programsshould aim at developing varieties with high quality fi ber, multi-resistant to the biotic and abiotic adversities, with the highestpossible ginning outturn and presenting an inhibition of the synthesis of the gossypol only at seed level. According to the localpriorities and resources available, the development of the new varieties should ideally be done by combining the approachesof the traditional genetic improvement assisted by the use of DNA markers and the functional genomics tools to direct theimplementation of targeted genetic transformations. This will not be possible without the maintenance of strong structures ofgenetic improvement directly in contact with the fi eld realities specifi c to each great zone of production. The

  11. ANKARA’DA ERKEN BİZANS DÖNEMİ MEZAR ALANI KAZISI / EARLY BYZANTINE CEMETERY EXCAVATION IN ANKARA

    Directory of Open Access Journals (Sweden)

    Mahmut AYDIN

    2016-06-01

    Full Text Available Roma Dönemi’nde Galatia Eyaleti’nin başkentliğini yapan Ankyra kentinin anıtsal yapıları ve diğer çarpıcı kalıntıları ile olası nekropol alanları genellikle Ankara’nın Erken Cumhuriyet Dönemi imar faaliyetleri sırasında gerçekleşen hafriyat çalışmaları ile açığa çıkarılmıştır. Ankara Celal Bayar Bulvarı üzerindeki Gazi Üniversitesi Sıhhiye Kampüsünde inşa edilen Mühendislik ve Mimarlık Fakültesindeki yapılaşma faaliyetleri sırasında ortaya çıkarılan Maltepe Erken Bizans Dönemi Mezar Alanı olasılıkla Ankyra kentinin daha önce bir bölümü tespit edilen güney nekropolü’nün devamı niteliğindedir. Gerçekleştirilen kurtarma kazısı sonucunda bu alanda tahrip edilmiş olası bir kilisenin küçük bir kısmı ve kilise cemaatine ait olması muhtemel beşik tonozlu bir mezar yapısı ortaya çıkarılmıştır.

  12. Révolution : mode d'emploi

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    Marie Camberlin

    2001-09-01

    Full Text Available Pourquoi, en 1948 d'abord, en 1955 ensuite, les tentatives du mouvement des " Yéménites Libres " fondé par Muhammad al-Zubayrî et Ahmad Nu'mân de mettre un terme à l'absolutisme et à l'immobilisme de l'imamat zaydite ont-elles échoué à capitaliser un mécontentement populaire qui était pourtant manifeste ? Pourquoi l'imam Ahmad est-il parvenu à mobiliser avec tant de facilité les masses rurales (des tribus contre le programme de l'intelligentsia éclairée ? Derrière l'inventaire lucide des "erreurs des Libres" que dresse al-Zubayrî, résident certaines péripéties révélatrices des résistances à la modernisation politique au Yémen.Muhammad Mahmûd al-Zubayrî and the mistakes of the Free Yemeni MovementWhy have the attempts of the Free Yemeni movement, founded by Muhammad Mahmûd al-Zubayrî and AΩmad al-Nu'mân to put an end to the absolutism and standstill of the Zaydi Imamate, failed to capitalize on the manifest popular discontent in 1948 and 1955 ? Why did Imam Ahmad manage so easily to gather the tribal rural masses against the project of an enlightened intelligentsia ? This article assesses the mistakes of the Free Yemeni movement as seen by Muhammad al-Zubayrî and relates a number of episodes that reveal some of the resistance to political modernization in Yemen at the time.

  13. Le Yémen, la mondialisation et l'OMC

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    'Ali Zayd

    2001-10-01

    Full Text Available Alors que le Yémen est officiellement candidat à l'entrée dans l'Organisation mondiale du commerce, il paraît nécessaire de s'interroger sur les enjeux de cette adhésion. Le Yémen n'échappe pas à la mondialisation de l'économie. La structure de ses échanges et de sa production montre d'ores et déjà une forte dépendance vis-à-vis des marchés internationaux (pétrole, produits agricoles, technologies, main-d'œuvre, etc.. Les réformes liées à l'ajustement structurel ont parallèlement consacré l'ouverture économique du pays. Dans ces conditions, plusieurs pistes doivent être explorées par les responsables yéménites pour préparer au mieux l'intégration du Yémen : ajustement des tarifs douaniers, adhésion à des regroupements régionaux, réformes structurelles.Yemen, Globalization and the WTO As Yemen recently officially applied for entry in the World Trade organization, it seems necessary to question what is at stake in this membership. The structure of Yemen's exchange and production is already strongly dependent on world markets (oil, agriculture, technology, labour, etc. and the reforms implied by the structural adjustment policy have led to a more profound opening towards the world. In this framework, Yemeni officials must explore the different possibilities that would best prepare Yemen for WTO membership : adjustment of custom dues, membership in regional organizations or structural economic reforms.

  14. Numerical solution of a flow inside a labyrinth seal

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    Šimák Jan

    2012-04-01

    Full Text Available The aim of this study is a behaviour of a flow inside a labyrinth seal on a rotating shaft. The labyrinth seal is a type of a non-contact seal where a leakage of a fluid is prevented by a rather complicated path, which the fluid has to overcome. In the presented case the sealed medium is the air and the seal is made by a system of 20 teeth on a rotating shaft situated against a smooth static surface. Centrifugal forces present due to the rotation of the shaft create vortices in each chamber and thus dissipate the axial velocity of the escaping air.The structure of the flow field inside the seal is studied through the use of numerical methods. Three-dimensional solution of the Navier-Stokes equations for turbulent flow is very time consuming. In order to reduce the computational time we can simplify our problem and solve it as an axisymmetric problem in a two-dimensional meridian plane. For this case we use a transformation of the Navier-Stokes equations and of the standard k-omega turbulence model into a cylindrical coordinate system. A finite volume method is used for the solution of the resulting problem. A one-side modification of the Riemann problem for boundary conditions is used at the inlet and at the outlet of the axisymmetric channel. The total pressure and total density (temperature are to be used preferably at the inlet whereas the static pressure is used at the outlet for the compatibility. This idea yields physically relevant boundary conditions. The important characteristics such as a mass flow rate and a power loss, depending on a pressure ratio (1.1 - 4 and an angular velocity (1000 - 15000 rpm are evaluated.

  15. Fethiye Yöresinde (Akdeniz Paraketeyle Kılıç (Xiphias gladius Linnaeus, 1758 Avcılığı Üzerine Bir Ön Çalışma.

    Directory of Open Access Journals (Sweden)

    Mustafa Erdem

    2015-12-01

    Full Text Available Fethiye yöresinde, ticari parakete tekneleriyle, 1 Nisan – 15 Haziran / 1 Eylül – 30 Ekim tarihleri arasında yedi sörvey yürütülmüştür. Bu ön çalışma sonuçları, paraketeyle kılıç balığı (Xiphias gladius L. avcılığında filonun boyutu, ekipmanları, balıkçılık alanları, parakete özellikleri, total av, balıkçılık gücü ve birim çabaya düşen av (CPUE miktarlarıyla ilgilidir. Bu çalışmada, boy aralığı 62 – 252 cm ve ağırlık aralığı 3.8 – 168.3 kg arasında değişen 60 birey incelenmiştir. Fethiye limanına bağlı, boyları 8.5 – 14.5 m, makine güçleri 11 – 135 HP arasında değişen ve 400 – 750 iğnelı paraketeye sahip 14 tekne vardır. CPUE’nin günde her 1000 iğnelik ünite için 15.6 ile 27.8 kg olarak değiştiği bulunmuştur

  16. Aspects of Dzyaloshinskii-Moriya Interaction in Two Dimensional Magnetic Structures

    Science.gov (United States)

    Kundu, Anirban

    Research on topologically protected chiral magnetic structures such as magnetic domain walls (DWs) and skyrmions, have gained extensive interest because of their possible applications in magnetic data storage industries. The recently observed chiral DW structures in ultrathin ferromagnetic lms with perpendicular magnetic anisotropy has been attributed to the presence of a strong Dzyaloshinskii-Moriya interaction (DMI). In this thesis, the DMI mediated by the conduction electrons in two dimensional magnetic systems such as magnetic thin lms or at the interfaces between two magnetic materials has been studied. I calculate the Ruderman-Kittel- Kasuya-Yosida (RKKY) type indirect exchange coupling between two magnetic moments at nite temperature using the free electron band. At high temperature, the coupling strength decays with distance faster than the coupling at zero temperature but the period of oscillation remains same. However, the free electron band alone could not produce DMI. In the next step, I show addition of Rashba spin-orbit coupling (RSOC) with the spin-polarized conduction electron band produces the DMI between two magnetic ions. The essential feature of this DMI is: the coupling strength increases with the strength of RSOC, but decreases signi cantly with the Heisenberg exchange coupling. The DMI calculated with this model well explains the possibility of preferred Neel or Bloch DW structures with specifc chirality. In addition: I study switching of magnetization with ultrafast laser pulse by inverse Faraday e ect (IFE) where an optically induced non-equilibrium orbital momentum generates an e ective magnetic eld via spin-orbit coupling for magnetization switching. I calculate the magnitude of induced orbital moment for the generic itinerant band and show that magnitude is not large enough to make the switching by a single pulse, however, switching could be possible if multiple pulses are applied to the material.

  17. ULUSLARIN REKABET ÜSTÜNLÜĞÜ VE ELMAS MODELI ÜZERINE BIR DEĞERLENDIRME

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    Murat KOC

    2014-07-01

    Full Text Available Günümüzde, rekabet kavramı daha çok firma düzeyinde bir kavram olmakla beraber, artık ulusal düzeyde de ele alınmaya başlanmıştır. Rekabet şartlarının değişken bir yapı içerisinde olması ve yaşanan küreselleşme, bir ulusun rekabet üstünlüğünün analiz edilebilmesi açısından yeni yöntemlerin uygulanması gerekliliğini ortaya koymuştur. Bu kapsamda Michael E. Porter, kapsamlı bir araştırma niteliği taşımakta olan, Elmas Modeli (Diamond Model’ni ortaya koymuştur. “Bazı ulusların neden diğerlerine göre belirli sektörlerde daha rekabetçi olduğu” sorusuna yanıt vermeye çalışılan model, belirli bir sektörde ulusal rekabet gücünü belirleyen bazı unsurların birbirleriyle ilişkili olarak incelenmesini öngörmektedir. Bu çalışmanın amacı, ulusların rekabet üstünlüğü sağlamasında Porter’ın literatüre kazandırdığı “Elmas Modeli” yaklaşımının değerlendirilmesi ve modele yönelik eleştirilerin ortaya konulmasıdır.

  18. Potential for bispecific T-cell engagers: role of blinatumomab in acute lymphoblastic leukemia

    Directory of Open Access Journals (Sweden)

    Le Jeune C

    2016-02-01

    Full Text Available Caroline Le Jeune, Xavier Thomas Hospices Civils de Lyon, Hematology Department, Lyon-Sud Hospital, Pierre Bénite, France Abstract: Patients with relapsed/refractory (R/R B-precursor acute lymphoblastic leukemia (ALL and patients whose minimal residual disease persists during treatment have a poor leukemia-free survival. Despite improvements in front-line therapy, the outcome in these patients remains poor, especially after relapse. As there are no standard chemotherapeutic regimens for the treatment of patients with R/R B-precursor ALL, T-cell-based therapeutic approaches have recently come to the forefront in ALL therapy. Recently, monoclonal antibodies have been developed to target specific antigens expressed in B-lineage blast cells. In this setting, CD19 is of great interest as this antigen is expressed in B-lineage cells. Therefore, it has been selected as the target antigen for blinatumomab, a new bi-specific T-cell engager antibody. This sophisticated antibody binds sites for both CD19 and CD3, leading to T-cell proliferation and activation and B-cell apoptosis. Owing to its short serum half-life, blinatumomab has been administrated by continuous intravenous infusion with a favorable safety profile. The most significant toxicities were central nervous system events and the cytokine release syndrome. This new therapeutic approach using blinatumomab has been shown to be effective in patients with positive minimal residual disease and in patients with R/R B-precursor ALL leading to a recent approval by the US Food and Drug Administration after an accelerated review process. This review focuses on the profile of blinatumomab and its efficacy and safety. Keywords: B-cell lineage acute lymphoblastic leukemia, relapsed/refractory, minimal residual disease, BiTE monoclonal antibodies, blinatumomab

  19. Al-Ḥudayyda sous occupation ottomane (1849-1918

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    Patrice Chevalier

    2011-12-01

    Full Text Available Petit port de pêche situé sur les côtes de la mer Rouge, al-Ḥudayyda change progressivement de statut et de dimensions avec l’arrivée de l’armée ottomane en 1839. Al-Ḥudayyda se voit alors choisi comme l’un des points stratégiques (militaire et politique du dispositif colonial ottoman.Grâce aux différentes infrastructures mises en place par l’administration ottomane, mais aussi grâce à l’ouverture du canal de Suez en 1869, le village attire peu à peu une population multi-ethnique et cosmopolite venue y commercer ou simplement y trouver refuge, dans un contexte politique régional passablement agité. D’une centaine de Yéménites à l’origine, il compte 42 000 âmes à la veille de la première guerre mondiale.La cohabitation sous administration ottomane va-t-elle générer ou non des échanges ou emprunts entre les différentes communautés ? Les Ottomans vont-ils réussir à transcender les multiples appartenances identitaires au profit d’une appartenance citoyenne à l’empire, comme le prévoit leur ambitieux programme de réformes ? La ville d’al- Ḥudayyda sera-t-elle dotée d’une identité spécifique suffisamment forte pour que les individus appartenant aux différentes communautés présentes s’identifient à la ville ? Voilà quelques-unes des questions auxquelles cet article tente de répondre.

  20. Pressure of a partially ionized hydrogen gas: numerical results from exact low temperature expansions

    Energy Technology Data Exchange (ETDEWEB)

    Alastuey, A. [Laboratoire de Physique, ENS Lyon, CNRS, Lyon (France); Ballenegger, V. [Institut UTINAM, Universite de Franche-Comte, CNRS, Besancon (France)

    2010-01-15

    We consider a partially ionized hydrogen gas at low densities, where it reduces almost to an ideal mixture made with hydrogen atoms in their ground-state, ionized protons and ionized electrons. By performing systematic low-temperature expansions within the physical picture, in which the system is described as a quantum electron-proton plasma interacting via the Coulomb potential, exact formulae for the first.ve leading corrections to the ideal Saha equation of state have been derived[A. Alastuey, V. Ballenegger et al., J. Stat. Phys. 130, 1119 (2008)]. Those corrections account for all effects of interactions and thermal excitations up to order exp(E{sub H} /kT) included, where E{sub H} {approx_equal} -13.6 eV is the ground state energy of the hydrogen atom. Among the.ve leading corrections, three are easy to evaluate, while the remaining ones involve suitably truncated internal partition functions of H{sub 2} molecules and H{sup -} and H{sub 2}{sup +} ions, for which no analytical formulae are available in closed form. We estimate those partitions functions at.nite temperature via a simple phenomenology based on known values of rotational and vibrational energies. This allows us to compute numerically the leading deviations to the Saha pressure along several isotherms and isochores. Our values are compared with those of the OPAL tables (for pure hydrogen) calculated within the ACTEX method (copyright 2010 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  1. Perspectives for mass rearing of Iphiseiodes zuluagai Denmark and Muma (Acari: Phytoseiidae)

    International Nuclear Information System (INIS)

    Albuquerque, Fabio A. de

    2008-01-01

    Iphiseiodes zuluagai Denmark and Muma is an important predator of Brevipalpus phoenicis (Geijskes) on citrus in Brazil. The suitability of Tyrophagus putrescentiae (Schrank) as a food source of I. zuluagai in laboratory rearing was investigated at 25.5 ± 0.5 deg C, 88 ± 7% RU and photophase of 12h. Initially, levels of oviposition of the predator fed on eggs were evaluated, as well as the dead or live post-embryonic stages of T. putrescentiae, in a period of 10 days. The daily oviposition rate was 1.3 egg per female when they were fed on eggs on T. putrescentiae, 0.7 egg per female when they were fed on dead post embryonic stages and about 0.3 egg per female when they were fed on live post-embryonic stages. Later, the life table of I. zuluagai was constructed, when eggs of T. putrescentiae were offered to the predators as prey. The immature stages were observed every 8 h, to determine the corresponding durations. In the adult phase, the mites were observed every 24 h, to determine the reproductive parameters. The intrinsic rate of natural increase (r m ) was 0.11 female/ female/day; resulting in a fi nite rate of increase of 1.11 (λ). The net reproductive rate (R 0 ) was 7.1 females/generation, with a mean generation time (T) 18.6 days. The results show that T. putrescentiae is a favorable food source for the development of I. zuluagai. (author)

  2. Cluster Dynamics Modeling with Bubble Nucleation, Growth and Coalescence

    Energy Technology Data Exchange (ETDEWEB)

    de Almeida, Valmor F. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Blondel, Sophie [Univ. of Tennessee, Knoxville, TN (United States); Bernholdt, David E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wirth, Brian D. [Univ. of Tennessee, Knoxville, TN (United States)

    2017-06-01

    The topic of this communication pertains to defect formation in irradiated solids such as plasma-facing tungsten submitted to helium implantation in fusion reactor com- ponents, and nuclear fuel (metal and oxides) submitted to volatile ssion product generation in nuclear reactors. The purpose of this progress report is to describe ef- forts towards addressing the prediction of long-time evolution of defects via continuum cluster dynamics simulation. The di culties are twofold. First, realistic, long-time dynamics in reactor conditions leads to a non-dilute di usion regime which is not accommodated by the prevailing dilute, stressless cluster dynamics theory. Second, long-time dynamics calls for a large set of species (ideally an in nite set) to capture all possible emerging defects, and this represents a computational bottleneck. Extensions beyond the dilute limit is a signi cant undertaking since no model has been advanced to extend cluster dynamics to non-dilute, deformable conditions. Here our proposed approach to model the non-dilute limit is to monitor the appearance of a spatially localized void volume fraction in the solid matrix with a bell shape pro le and insert an explicit geometrical bubble onto the support of the bell function. The newly cre- ated internal moving boundary provides the means to account for the interfacial ux of mobile species into the bubble, and the growth of bubbles allows for coalescence phenomena which captures highly non-dilute interactions. We present a preliminary interfacial kinematic model with associated interfacial di usion transport to follow the evolution of the bubble in any number of spatial dimensions and any number of bubbles, which can be further extended to include a deformation theory. Finally we comment on a computational front-tracking method to be used in conjunction with conventional cluster dynamics simulations in the non-dilute model proposed.

  3. Universal Laws and the Structure of the “Total Universe”

    Directory of Open Access Journals (Sweden)

    David McGraw Jr

    2017-09-01

    Full Text Available Recent developments in Particle Physics and Cosmology lead one naturally to the existence of many universes. Although direct confi rmation of other universes is diffi cult, it is not impossible. This paper is a look at a new theory of multiple universes. The idea of t = 0, goes back long before the creation of our universe. The “Total Universe’ contains many universes like our universe. The number of universes is infi nite, so some universes are far older than our universe. These ultimate areas of space were our universe started, is still creating new universes. Many big bangs have occurred in the past, and many big bangs will occur in the future. Big bangs are not something that happens just once or twice. Many diff erent universes exist; in this larger area of space we can call the ‘Total Universe’. In the ‘Total Universe’ the second law of thermodynamics is violated. The second Law of thermodynamics is a general law; it is not a universal law. The level of disorder in the ‘Total Universe’ is both increasing, and decreasing. In the ‘Total Universe’, entropy can increase, decrease, or remain constant. Individual universes are being created in the ‘Total Universe’; in these areas of the ‘Total Universe’ energy is not conserved. The ‘Total Universe’ is an energy creating machine. The conservation of energy is a general law because there are areas where external forces are being created so that the conservation of energy would not be valid.

  4. Development and deployment of constitutive softening routines in Eulerian hydrocodes.

    Energy Technology Data Exchange (ETDEWEB)

    Fuller, Timothy Jesse; Dewers, Thomas A.; Swan, Matthew Scot

    2013-03-01

    The state of the art in failure modeling enables assessment of crack nucleation, propagation, and progression to fragmentation due to high velocity impact. Vulnerability assessments suggest a need to track material behavior through failure, to the point of fragmentation and beyond. This eld of research is particularly challenging for structures made of porous quasi-brittle materials, such as ceramics used in modern armor systems, due to the complex material response when loading exceeds the quasi-brittle material's elastic limit. Further complications arise when incorporating the quasi-brittle material response in multi-material Eulerian hydrocode simulations. In this report, recent e orts in coupling a ceramic materials response in the post-failure regime with an Eulerian hydro code are described. Material behavior is modeled by the Kayenta material model [2] and Alegra as the host nite element code [14]. Kayenta, a three invariant phenomenological plasticity model originally developed for modeling the stress response of geologic materials, has in recent years been used with some success in the modeling of ceramic and other quasi-brittle materials to high velocity impact. Due to the granular nature of ceramic materials, Kayenta allows for signi cant pressures to develop due to dilatant plastic ow, even in shear dominated loading where traditional equations of state predict little or no pressure response. When a material's ability to carry further load is compromised, Kayenta allows the material's strength and sti ness to progressively degrade through the evolution of damage to the point of material failure. As material dilatation and damage progress, accommodations are made within Alegra to treat in a consistent manner the evolving state.

  5. Türkiye Türkçesinde "gibi" Edatıyla Kurulan Benzetmeli Anlatımlar The Expressions of Simile with the Postposition of "gibi" in Turkey Turkish

    Directory of Open Access Journals (Sweden)

    İ. Gülsel SEV

    2012-12-01

    çerisinde yer alan benzetmelere başvurmaktır. Benzetme, niteliği anlatılmak istenen nesnenin veya varlığın bir başka nesneye ya da varlığa dayanılarak onunla benzerliği ortaya konarak anlatılmasıdır. Bu eğilim dilimizde daha çok benzetme edatı diye adlandırılan gibi edatıyla, edat grubu niteliğinde, gerçekleştirilir. duvar gibi: Sağır, fitil gibi: Çok sarhoş, peri gibi: Çok güzel, kıyamet gibi: Pek çok, ay parçası gibi: Güzel kız, çocuk, gâvur ölüsü gibi: Çok ağır, hantal, kör değneğini beller gibi: Hep aynı işi yapmak. vb. örneklerde olduğu gibi. Söz konusu kelime grupları fiillerle birlikte kullanıldığında (isim-fiil grubu kalıbında deyim niteliği kazandığı açıktır. Kedi ciğere bakar gibi bak-: İmrenerek bakmak, arpacı kumrusu gibi düşün-: Ne yapacağını bilmeyerek derin derin düşünmek, pişmiş kelle gibi sırıt-: Dişlerini göstererek yersiz ve aptalca gülmek. vb. örneklerde olduğu gibi.Bu yazıda Türk dilinde yaygın olarak kullanılagelen gibi edatıyla kurulan kalıplaşmış söz öbeklerinin işleyişi üzerinde durulacaktır. Çalışmamızın esas konusunu dilimizde fiilsiz kullanılan gibi edatlı kalıplaşmış kelime grupları teşkil ettiğinden bu yapılar için TDK Türkçe Sözlük taranarak söz konusu gruplar çıkarılacak; bunlar anlam ilişkileri, kalıplaşma dereceleri, yapıları vb. bakımından incelenmeye çalışılacaktır.

  6. Geleneksel Anlatı Formları Olarak Mesnevîler ve Klâsik Aşk Mesnevîlerinin Motif Yapısı In Traditional Narrative Forms Mathnavies And Structure Motif Of Classic Love Mathnavies

    Directory of Open Access Journals (Sweden)

    Timuçin AYKANAT

    2012-12-01

    rnekleridir. Anlatı niteliği taşıyan hemen her sanat eserinin ortak özelliği, anlatım esasına dayalı metinler olmalarından ileri gelir ve bu metinler, kurmaca-anlatı niteliği taşır. Kurmaca-anlatı niteliğindeki hemen her edebî metin ise; müellifi tarafından farklı motiflerin örülmesi ile oluşturulur. Bir eser, çokça farklı motifin bir araya gelmesi ile örülse de aynı bağlam üzere yazılmış daha başka eserler, aynı ortak motifleri işleyebilir. Böylelikle; motifleri ve hâliyle kurgusu aynı, sanatkârının, sanat yetileri nispetinde nicelik ve nitelik vasıfları farklı başka başka yapıtlar ortaya çıkar. Anılan tarzdaki eserlerin kurgusundaki müştereklik, onların metinlerarası bir bağlam oluşturmalarını da sağlar. Bu çalışma; çağlar boyunca insanlığın anlatı ihtiyacını karşılamış ve geleneksel anlatı formları arasında kendine yer edinmiş, on sekiz ikili aşk mesnevîsinden hareketle; geleneksel anlatı formaları olarak mesnevîler üzerinde kısa bir takım değerlendirmeleri içermekte ve klâsik aşk mesnevîlerini kurgusal açıdan ören motiflerin izini sürerek; anılan tarzdaki metinlerin oluşturduğu bağlama işâret etmektedir.

  7. Il concetto di Natura nella filosofia di Denis Diderot

    Directory of Open Access Journals (Sweden)

    Francesco Consiglio

    2014-03-01

    Full Text Available L’immagine della Natura che emerge dalla lettura delle opere di Diderot, è quella di una sorta di organismo in cui tutto risulta legato da una rete di forze inquadrate in un ordine omogeneo e dinamico. Le leggi di quest’ordine sono riscontrabili in tutti gli eventi naturali ed ogni fenomeno non è mai frutto del caso, ma ordinato deterministicamente. Allo spinozismo di quest’ordine geometrico si coniuga un atomismo di matrice epicurea, speci camente nella versione lucreziana del De Rerum Natura: gli atomi che costituiscono la materia si combinano da sempre e all’in nito in un continuo divenire di forme normate da leggi intrinseche, e gli individui nascono dal cozzare e dall’ammassarsi di questi atomi. Non esiste uno stadio culmine di questa “evoluzione”, piuttosto esistono in nite varianti, nel tempo e nello spazio, di un unico modello prototipico che, secondo Diderot, evolve in una specie o in un'altra in maniera totalmente a- nalistica, sebbene assolutamente determinis- tica. La regolarità dell’ordine (per no nell’apparente caos di un turbine di pol- vere e il continuo farsi e rifarsi delle forme si connettono al principio di conti- nuità della natura: la natura non fa salti, tutto è connesso come in una ragnatela e la materia continua muta la sua disposizione in grumi di atomi che, secondo il principio dell’epigenesi, giungono a formare gli individui. Le opere in cui Diderot elabora in maniera più organica e precisa la sua concezione della natura sono particolarmente due: L’interpretazione della natura (1753 e Il sogno di d’Alembert (1769. In mezzo a queste stanno gli scritti sui Sa- lons, tra i quali è particolarmente saliente, per il discorso sulla natura, quello del 1767, in cui, con la Promenade Vernet, molti di questi temi vengono a rontati o ripresi nel pittoricismo della narrazione, attraverso limpide metafore. Natura e arte, in Diderot, sono strettamente connesse. La seconda imita la prima, ma non tenta

  8. Doğu Karadeniz Bölgesinde Üretilen Balların Kimyasal ve Duyusal Nitelikleri

    Directory of Open Access Journals (Sweden)

    Zehra Güler

    2015-02-01

    Full Text Available Bal, başlıca karbonhidrat (glikoz ve früktoz ve sudan oluşan doğal bir üründür. Bu bileşenlerin yanı sıra protein, enzimler, organik asitler, mineral maddeler ve polen de içermektedir. Bal bileşimini ve özellikle de duyusal niteliğini üretildiği bölgenin florası önemli düzeyde etkilemektedir. Bu nedenle çalışmamız farklı florası ile bilinen Karadeniz bölgesinde (özellikle Hemşin üretilen ballar üzerinde gerçekleştirilmiştir. Üç yıl süresince her yıl Ağustos ayının son haftasında 10 adet bal örneği alınarak toplam 30 adet balın kimyasal ve duyusal nitelikleri incelenmiştir. Ballarda rutubet, invert şeker, sakkaroz, hidroksi metil furfural ve pH gibi nitelikler ortalama olarak sırasıyla % 18,90; % 68,42; % 1,54; 3,83 mg/kg ve 4,96 belirlenmiş ve yalnızca 1 örnekte ticari glikoz varlığına rastlanmıştır. Duyusal nitelikler bakımından ballar, açık sarı renkten-kahverengi ya da kahverengi-kırmızı renge, tat ve kokusu ise yavan bir aroma ve tat'dan çiçek kokusu, tatlı ve kinin acılığı benzeri bir tada kadar değişim göstermiştir. Elde edilen sonuçlara göre, bal örnekleri arasında kimyasal niteliklerin büyük farklılıklar göstermediği ancak duyusal bakımından belirgin bir değişim ortaya koydukları belirlenmiştir.

  9. Technological Advances Impacting Libraries and Libraries of the Future Kütüphaneleri Etkileyen Teknolojik Yenilikler ve Geleceğin Kütüphaneleri

    Directory of Open Access Journals (Sweden)

    Nazan Özenç Uçak

    1995-03-01

    Full Text Available Developments in libraries which began with the use of computers accelerate with the emergence of new technologies every day. Especially, the widespread use of microcomputers, developments in communication and optic disk technologies, and the use ofartifxcal intelligence and expert systems in libraries have impact upon the library profession. The assortment, quality and speed of library services have increased due to these developments. Along with the technological advances, the organizational structure of , and the management approcah to, libraries changes, too. These ongoing changes bring forth the question of what would happen to the libraries and librarianship of the future. Kütüphanelerde bilgisayarların kullanımı ile başlayan gelişmeler, her geçen gün yeni teknolojilerin ortaya çıkmasıyla giderek büyümektedir, özellikle mikrobilgisayarların geniş kullanım alanı bulması, iletişim teknolojisinin hızlı gelişimi, optik disk teknolojisindeki yenilikler, yapay zeka ve uzman sistemlerden kütüphanecilik alanında yararlanılabilmesi kütüphanecilik mesleğini etkilemektedir. Bu gelişmelere bağlı olarak verilen hizmetlerin çeşidi, niteliği ve hızı artmaktadır. Kütüphanelerin Örgüt yapılarında, yönetim anlayışlarında da değişimler söz konusudur. Bugün yaşanan bu değişimler geleceğin kütüphanelerinin ve kütüphaneciliğinin neolacağı sorularını gündeme getirmektedir.

  10. Deploy Nalu/Kokkos algorithmic infrastructure with performance benchmarking.

    Energy Technology Data Exchange (ETDEWEB)

    Domino, Stefan P. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Ananthan, Shreyas [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Knaus, Robert C. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Williams, Alan B. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-09-29

    The former Nalu interior heterogeneous algorithm design, which was originally designed to manage matrix assembly operations over all elemental topology types, has been modified to operate over homogeneous collections of mesh entities. This newly templated kernel design allows for removal of workset variable resize operations that were formerly required at each loop over a Sierra ToolKit (STK) bucket (nominally, 512 entities in size). Extensive usage of the Standard Template Library (STL) std::vector has been removed in favor of intrinsic Kokkos memory views. In this milestone effort, the transition to Kokkos as the underlying infrastructure to support performance and portability on many-core architectures has been deployed for key matrix algorithmic kernels. A unit-test driven design effort has developed a homogeneous entity algorithm that employs a team-based thread parallelism construct. The STK Single Instruction Multiple Data (SIMD) infrastructure is used to interleave data for improved vectorization. The collective algorithm design, which allows for concurrent threading and SIMD management, has been deployed for the core low-Mach element- based algorithm. Several tests to ascertain SIMD performance on Intel KNL and Haswell architectures have been carried out. The performance test matrix includes evaluation of both low- and higher-order methods. The higher-order low-Mach methodology builds on polynomial promotion of the core low-order control volume nite element method (CVFEM). Performance testing of the Kokkos-view/SIMD design indicates low-order matrix assembly kernel speed-up ranging between two and four times depending on mesh loading and node count. Better speedups are observed for higher-order meshes (currently only P=2 has been tested) especially on KNL. The increased workload per element on higher-order meshes bene ts from the wide SIMD width on KNL machines. Combining multiple threads with SIMD on KNL achieves a 4.6x speedup over the baseline, with

  11. Milli eğitim bakanlığı sisteminin kuvvetler ayrılığından kuvvetler birliğine doğru dönüştürülmesi [The transformation of ministry of national education system from separation of powers to unity of powers

    Directory of Open Access Journals (Sweden)

    İrfan ERDOĞAN

    2014-10-01

    Full Text Available Kuramsal ve tarihsel bir değerlendirme niteliğinde olan bu makalenin amacı genelde Türkiye’deki Milli Eğitim Bakanlığı’nı (MEB demokratik bir sistem örneği temelinde ele almak, özelde de MEB bünyesindeki Talim ve Terbiye Kurulu’nun (TTK işlevlerindeki değişiklikleri irdelemektir. MEB’e ve TTK’ya dair irdelemeler, demokratik sistemlerin dayalı olduğu kuvvetler ayrılığı prensibi ile işleyen hukuk düzeni temel alınarak yapılmıştır. Bu anlamda MEB sisteminin çağdaş hukuk düzeninin temel dayanağı olan yasama, yürütme ve yargı unsurlarından oluşan bir sistem olarak yapılandırılmış olduğu; Talim ve Terbiye Kurulu’nun da bu düzenin temel organlarından biri olduğu varsayılmaktadır. Makalede MEB’in yapısının Türkiye Büyük Millet Meclisi’nden geçen yeni torba yasayla değiştiği ve Talim ve Terbiye Kurulu’nun karar organı olmaktan çıkarılarak danışma birimi haline getirildiği ileri sürülmektedir. Bu şekilde yetki ve sorumlulukların büyük ölçüde bir merkezde toplanmış olduğu, bununla birlikte MEB sisteminin daha merkeziyetçi hale dönüşeceği, dolayısıyla daha katı ve otoriter eğilimlerin ortaya çıkacağı iddia edilmektedir. Bu bağlamda Milli Eğitim Bakanlığı sisteminin tekrar ele alınması ve Talim ve Terbiye Kurulu’nun sistem içindeki yerinin ve rolünün güçlendirilmesi gerektiği önerilmektedir.

  12. Enhanced thermoelectric properties of metal film on bismuth telluride-based materials

    International Nuclear Information System (INIS)

    Chao, Wen Hsuan; Chen, Yi Ray; Tseng, Shih Chun; Yang, Ping Hsing; Wu, Ren Jye; Hwang, Jenn Yeu

    2014-01-01

    Diffusion barriers have a significant influence on the reliability and life time of thermoelectric modules. Although nickel is commonly used as a diffusion barrier in commercial thermoelectric modules, several studies have verified that Ni migrates to bismuth telluride-based material during high temperature cycles and causes a loss in efficacy. In this paper, the influence of metal layers coated to p-type and n-type Bi 2 Te 3 on the interface characterization and thermoelectric property is studied using a RF magnetron sputtering. The findings from this study demonstrate the structural and thermoelectric properties of p-type and n-type Bi 2 Te 3 coated with different metal layers. The crystalline phase and compositional change of the interface between the Bi 2 Te 3 materials and the metal layers were determined using an X-ray diffractometer and scanning electron microscopy with energy dispersive spectroscopy. Formation of NiTe was observed in the sample of Ni/p-type Bi 2 Te 3 based films post-annealed in an N 2 atmosphere at 200 °C. In contrast, no Co x Te y was formed in the sample of Co/p-type Bi 2 Te 3 based films post-annealed at 200 °C. For as-deposited Ni/p-type and n-type Bi 2 Te 3 based legs, the Ni slightly diffused into the Bi 2 Te 3 based legs. A similar phenomenon also occurred in the as-deposited Co/p-type and n-type Bi 2 Te 3 based legs. The Seebeck coefficients of the Co contacts on the Bi 2 Te 3 based material displayed better behavior than those of the Ni contacts on the Bi 2 Te 3 based legs. Thus Co could be a suitable diffusion barrier for bulk Bi 2 Te 3 based material. The observed effects on the thermoelectric and structural properties of metal/Bi 2 Te 3 based material are crucial for understanding the interface between the diffusion barrier and thermoelectric materials. - Highlights: • Interface characterization of metal coated to p-type and n-type Bi 2 Te 3 is studied. • We examined the phase transformation of metal/Bi 2 Te 3 based films

  13. Survival and Development of Hermetia illucens (Diptera: Stratiomyidae): A Biodegradation Agent of Organic Waste.

    Science.gov (United States)

    Clariza Samayoa, Ana; Chen, Wei-Ting; Hwang, Shaw-Yhi

    2016-12-01

    The black soldier fly, Hermetia illucens (L.) (Diptera: Stratiomyidae), was reared on artificial diet (wheat bran and chicken feed) in the laboratory at 28ºC (immature stages) and under a greenhouse set at 28ºC (adults). Data were collected and analyzed based on an age-stage, two-sex life table. The intrinsic rate of increase (r), finite rate of increase (λ), net reproduction rate (R 0 ), and mean generation time (T) were 0.0759 (d -1 ), 1.0759 (d -1 ), 68.225 offspring, and 55.635 d, respectively. The maximum reproductive value of females occurred at 54 d. Only six females out of 21 were able to successfully oviposit. The number of eggs laid per female ranged from 236 to a maximum of 1,088 eggs. We demonstrated that first-instar larvae of H. illucens are more susceptible to perishing when reared under artificial diet than are later instars. La mosca soldado negro, Hermetia illucens (L.) (Diptera: Stratiomyidae), fue alimentada en una dieta artificial (salvado de trigo y alimento para pollos) en el laboratorio a 28ºC (estados inmaduros) y en un invernadero a 28ºC (adultos). Los datos fueron recopilados y analizados en base a la tabla de vida de ambos sexos, edad y etapa. La tasa intrínseca de crecimiento (r), tasa finita de crecimiento (λ), la tasa neta de reproducción (R 0 ) y el tiempo medio generacional (T) fueron 0.0759 (d), 1.0759 (d), 68.225 crías, y 55.635 (d), respectivamente. El valor reproductivo máximo de las hembras se produjo a los 54 días. Sólo 6 de las 21 hembras fueron capaces de poner huevos con éxito. El número de huevos por hembra varió de 236 a un máximo de 1088 huevos. Hemos demostrado que cuando han sido criados en una dieta artificial, las larvas de H. illucens durante el primer instar son más susceptibles a perecer que los instares posteriores. © The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  14. Determining the fracture resistance of advanced SiC fiber reinforced SiC matrix composites

    International Nuclear Information System (INIS)

    Nozawa, T.; Katoh, Y.; Kishimoto, H.

    2007-01-01

    Full text of publication follows: One of the perceived advantages for highly-crystalline and stoichiometric silicon carbide (SiC) and SiC composites, e.g., advanced SiC fiber reinforced chemically-vapor-infiltrated (CVI) SiC matrix composites, is the retention of fast fracture properties after neutron irradiation at high-temperatures (∼1000 deg. C) to intermediate-doses (∼15 dpa). Accordingly, it has been clarified that the maximum allowable stress (or strain) limit seems unaffected in certain irradiation conditions. Meanwhile, understanding the mechanism of crack propagation from flaws, as potential weakest link to cause composite failure, is somehow lacking, despite that determining the strength criterion based on the fracture mechanics will eventually become important considering the nature of composites' fracture. This study aims to evaluate crack propagation behaviors of advanced SiC/SiC and to provide fundamentals on fracture resistance of the composites to define the strength limit for the practical component design. For those purposes, the effects of irreversible energies related to interfacial de-bonding, fiber bridging, and microcrack forming on the fracture resistance were evaluated. Two-dimensional SiC/SiC composites were fabricated by CVI or nano-infiltration and transient-eutectic-phase (NITE ) methods. Hi-Nicalon TM Type-S or Tyranno TM -SA fibers were used as reinforcements. In-plane mode-I fracture resistance was evaluated by the single edge notched bend technique. The key finding is the continuous Load increase with the crack growth for any types of advanced composites, while many studies specified the gradual load decrease for the conventional composites once the crack initiates. This high quasi-ductility appeared due primarily to high friction (>100 MPa) at the fiber/matrix interface using rough SiC fibers. The preliminary analysis based on the linear elastic fracture mechanics, which does not consider the effects of irreversible energy

  15. Moisture and temperature in a proppant-enveloped silt block of a recharge dam reservoir: Laboratory experiment and 1-D mathematical modelling

    Directory of Open Access Journals (Sweden)

    Anvar Kacimov

    2018-01-01

    Full Text Available Mosaic 3-D cascade of parallelepiped-shaped silt blocks, which sandwich sand- lled cracks, has been discovered in the eld and tested in lab experiments. Controlled wetting-drying of these blocks, collected from a dam reservoir, mimics field ponding-desiccation conditions of the topsoil layer subject to caustic solar radiation, high temperature and wind, typical in the Batinah region of Oman. In 1-D analytical modelling of a transient Richards’ equation for vertical evaporation, the method of small perturbations is applied, assuming that the relative permeability is Avery-anov’s 3.5-power function of the moisture content and capillary pressure is a given (measured function. A linearized advective dispersion equation is solved with respect to the second term in the series expansion of the moisture content as a function of spatial coordinates and time. For a single block of a nite thickness we solve a boundary value problem with a no- ow condition at the bottom and a constant moisture content at the surface. Preliminary comparisons with theta-, TDR- probes measuring the moisture content and temperature at several in-block points are made. Results corroborate that a 3-D heterogeneity of soil physical properties, in particular, horizontal and vertical capillary barriers emerging on the interfaces between silt and sand generate eco-niches with stored soil water compartments favourable for lush vegetation in desert conditions. Desiccation significantly increases the temperature in the blocks and re-wetting of the blocks reduces the daily average and peak temperatures, the latter by almost 15°C. This is important for planning irrigation in smartly designed soil substrates and sustainability of wild plants in the region where the top soil peak temperature in the study area exceeds 70°C in Summer but smartly structured soils maintain lash vegetation. Thee layer of dry top-blocks acts as a thermal insulator for the subjacent layers of wet blocks that

  16. POETRY AFTER TANZİMAT AND ISMAİL SAFÂ TANZİMAT SONRASI ŞİİR ANLAYIŞI VE İSMAİL SAFÂ

    Directory of Open Access Journals (Sweden)

    Sefa YÜCE

    2011-06-01

    Full Text Available İsmail Safâ was a poet of a transitional period. He was ipraised by Muallim Naci and he attracted the attention of his peers. In the discussion of antiqutiy-innovation, he took Ekrem’s stand and adopts new approach in poetry. He participated to Servet-i Fünûn (Wealth of Sciences Community. He took Ekrem’s “Talim-i Edebiyat” (Instruction of Literature production as a model. He wrote theoretical productions regarding main problems of literature.İsmail Safâ was a poet who knew poetry well and attracted attention with having command of the language. Also one of his characteristics seperating him from other poets is to put forward the concept of “national language”. Believing that art can not exist without science poet became a model to young poets in this case by defending the vitality of science of literature.In this study, Literature’s theorectical problems are tried to be assessed by addressing from the point of İsmail Safâ’s productions İsmail Safâ, bir geçiş dönemi şairidir. Edebiyatta eskilik-yenilik tartışmalarında Recaizâde Ekrem’in tarafını tutar ve yeni şiir anlayışını benimser. Servet-i Fünûn topluluğuna katılır. Ekrem’in “Talim-i Edebiyat” eserinden etkilenerek edebiyatın temel sorunlarıyla ilgili teorik eserler yazar. İsmail Safâ, şiir ve şiiriyeti iyi bilen, dile hakimiyeti ile dikkat çeken bir şairdir. Ayrıca onu diğer şairlerden ayıran bir niteliği de “millî dil” kavramını öne çıkarmasıdır. İlimsiz sanat olamayacağını düşünen şair, edebiyat ilminin gerekliliğini savunarak bu konuda genç şairlere örnek olur.Bu çalışmada, İsmail Safâ’nın eserlerinden hareketle edebiyatın teorik sorunları ele alınarak değerlendirilmeye çalışılmaktadır.

  17. Leishmaniose canine dans le Rif (côte méditerranéenne marocaine : enquête séro-épidémiologique

    Directory of Open Access Journals (Sweden)

    Rami M.

    2003-03-01

    Full Text Available Dans le but d'évaluer la situation de la leishmaniose canine dans le foyer situé dans le versant Nord-Est de la chaîne montagneuse du Rif, une enquête séro-épidémiologique a été menée dans différentes localités de la province de Nador (côte méditerranéenne marocaine. Des échantillons de sérum collectés sur 257 chiens ont été analysés par les techniques d'immunofluorescence indirecte (IFI et d'enzyme-linked immunosorbent assay (ELISA pour détecter les anticorps anti-Leishmania infantum. Les résultats montrent que 48 (18,7 % des chiens examinés sont positifs en IFI et 54 (21,0 % le sont en ELISA ; la concordance des deux méthodes étant de 96,1 %. D'autre part, le taux d'infection est significativemenl plus élevé chez les chiens âgés de plus de quatre ans et ne dépend pas du sexe de l'animal. Les symptômes les plus fréquemment relevés sur les chiens séropositifs sont la polyadénite (57,4 %, l'amyotrophie (51,9 % et les lésions cutanéo-muqueuses ( 25,9 %. Cependant, 38,9 % de ces mêmes chiens ne présentent pas de symptômes pouvant évoquer la leishmaniose. Des Leishmania isolées sur trois des chiens examinés ont toutes été identifiées comme étant L. infantum MON-1. Ces résultats montrent que le versant Nord-Est des montagnes du Rif est l'un des foyers les plus actifs de leishmaniose viscérale dans le pourtour méditerranéen et confirment le rôle que joue le chien comme principal réservoir de L. infantum.

  18. NSR&D FY17 Report: CartaBlanca Capability Enhancements

    Energy Technology Data Exchange (ETDEWEB)

    Long, Christopher Curtis [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dhakal, Tilak Raj [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Zhang, Duan Zhong [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-10-19

    Over the last several years, particle technology in the CartaBlanca code has been matured and has been successfully applied to a wide variety of physical problems. It has been shown that the particle methods, especially Los Alamos's dual domain material point method, is capable of computing many problems involves complex physics, chemistries accompanied by large material deformations, where the traditional finite element or Eulerian method encounter significant difficulties. In FY17, the CartaBlanca code has been enhanced with physical models and numerical algorithms. We started out to compute penetration and HE safety problems. Most of the year we focused on the TEPLA model improvement testing against the sweeping wave experiment by Gray et al., because it was found that pore growth and material failure are essentially important for our tasks and needed to be understood for modeling the penetration and the can experiments efficiently. We extended the TEPLA mode from the point view of ensemble phase average to include the effects of nite deformation. It is shown that the assumed pore growth model in TEPLA is actually an exact result from the theory. Alone this line, we then generalized the model to include finite deformations to consider nonlinear dynamics of large deformation. The interaction between the HE product gas and the solid metal is based on the multi-velocity formation. Our preliminary numerical results suggest good agreement between the experiment and the numerical results, pending further verification. To improve the parallel processing capabilities of the CartaBlanca code, we are actively working with the Next Generation Code (NGC) project to rewrite selected packages using C++. This work is expected to continue in the following years. This effort also makes the particle technology developed with CartaBlanca project available to other part of the laboratory. Working with the NGC project and rewriting some parts of the code also given us an

  19. Biscoito integral: fonte de fibra, isento de lactose e gordura trans. = Integral cookie: fiber source, free of lactose and trans fats.

    Directory of Open Access Journals (Sweden)

    Meire Ferrari de Castro

    2008-12-01

    different levels cookie produced. For purchase intention, 79% of the evaluaters showed themselves willing to purchase. In 21% of cases, the evaluaters or would be in doubt (15% or defi nitely would not buy the product (6%. The final product showed satisfactory amounts of fiber, being exempt from lactose and trans fat.

  20. Current possibilities of chorioretinites diagnostics

    Directory of Open Access Journals (Sweden)

    O. V. Chudinova

    2014-07-01

    observation using OCt and monitoring of regional hemodynamics using USDG in patients with chorioreti- nites of different etiology are visualized the complications of the posterior part of the eye at early stages, to determine inflammatory process reactivation in time, as well as the dynamics of inflammation curing processes through the treatment performed. the prelimi- nary results obtained, as well as further studying this problem will allow to develop more constructive approaches to chorioretinites diagnostics.

  1. AKILLI KARTLAR İLE YAPILAN MAL VE HİZMET SATIŞLARININ TMS-18 HASILAT STANDARDI ÇERÇEVESİNDE MUHASEBELEŞTİRİLMESİ-RECOGNITION OF SOLD GOODS AND SERVICES BY SMART CARDS WITHIN TMS-18 REVENUE STANDARD

    Directory of Open Access Journals (Sweden)

    Abitter ÖZULUCAN

    2012-06-01

    Full Text Available Bu çalışmada;, önce akıllı kart / yemek çekleri sistemi tanıtılmakta, tarafların sağladıkları fayda ve maliyetler belirtilmekte ve gerçekleşen satış işleminin taraflarca kayda geçirilmesi hususu TMS 18 Hasılat standardı kapsamında ele alınmaktadır. Elde edilen hasılatın ölçümünde, sistemin işleyişinde temel unsur olan ve üye iş yeri tarafından yemek kartı tedavül eden işletmeye hizmet faturası karşılığında ödenen komisyonların, hasılatla doğrudan ilişkilendirilebilen bir gider niteliği taşıyıp taşımaması; bu türden giderlerin Tekdüzen Muhasebe Sistemi’nden farklı olarak, TMS 18 kapsamındaki ölçümünün ve muhasebeleştirilmesinin farklı olup olmadığının belirlenmesi amacıyla kaleme alınan bu çalışma, giriş ve sonuç bölümlerinin dışında dört bölümden oluşmaktadır.-The main part of the smart card system is sellers and while they are measuring of their revenue, they should associate the commissions with revenues to record at inception. So in this paper, after the smart card system is introduced, the advantages and disadvantages of this system are exposed and then how to recognise of the selling is considered within TMS 18, Revenues Standard. In other words, the reason that we conduct this paper can be expressed that the expense of the selling commissions which arise from the selling products with smart card whether should or should not deduct to revenue while the revenue is been measured.

  2. Natura relacji epistemicznej (The nature of epistemic relation

    Directory of Open Access Journals (Sweden)

    Stanisław Judycki

    2012-03-01

    unknown to human subjects, are also possible as constituents of epistemic relation. Truth also must be taken as the necessary element of epistemic relation and here I try to show the importance of the distinction between truth in the judgmental sense (propositional truth and truth in the pre-judgmental (pre-propositional sense (passive or receptive truth. In this context arguments are considered for the thesis that for all fi nite subjects each particular cognition is true in this pre-judgmental sense.

  3. Düzce Orman Ürünleri Sanayi İşletmelerinin Yeşil Pazarlama Konusunda Tutum ve Davranışlarının İncelenmesi

    Directory of Open Access Journals (Sweden)

    Tarık GEDİK

    2015-06-01

    Full Text Available Gelişen teknoloji ile birlikte çevrenin korunmasına verilen önem giderek artmaktadır. Hem bireysel hem de sivil toplum örgütlerinin çevreye karşı duyarlılığının günden güne artması sonucunda üretici konumunda bulunan işletmeler rakiplerinin önüne geçmek için çevreye daha fazla önem verdiklerini faaliyetlerinde tüketicilere yansıtmak istemektedirler. Bu bağlamda işletmelerin yeşil pazarlama kavramına olan ilgileri de günden güne artış göstermektedir. Yapılan bu çalışma Düzce orman ürünleri sanayi işletmelerinin yeşil pazarlama konusunda tutum ve davranışlarını belirlemeye yönelik bir araştırma niteliğindedir. Bu amaç doğrultusunda Ocak-Nisan 2014 döneminde Düzce ilinde Düzce Ticaret ve Sanayi Odasına Kayıtlı 66 orman endüstri işletmesinin anket yardımıyla incelenmesi hedeflenmiştir. İnceleme sonucunda yapılan istatitiksel analizlerle yeşil pazarlama konusunda Düzce orman ürünleri sanayi işletmelerinin yeşil pazarlama kapsamında yaptıkları faaliyetlerle daha yüksek bir tatmine ve müşteri memnuniyetine ulaştıkları belirlenmiştir. Yeşil pazarlama kapsamında işletmelerin daha fazla sorumluluk almaları gerektiği ve bunun sonucunda da daha yüksek finansmana gereksinim duydukları belirtilirken, işletmelerin yeşil pazarlamaya verecekleri önemle güvenilirliklerini arttıracağı görülmüştür.

  4. Yerel Hizmet Sunumunda Bilgi Teknolojisi Kullanımının Önemi Üzerine Uygulamalı Bir Çalışma: Kırşehir İl Özel İdaresi

    Directory of Open Access Journals (Sweden)

    Mustafa KOCAOĞLU

    2014-04-01

    Full Text Available Dünyada bilgi ve iletişim teknolojilerinde yaşanan gelişmelere paralel olarak Türkiye’de de kamusal hizmetlerin bilişim teknolojileri aracılığı ile sağlanmasına yönelik çalışmalar hız kazanmıştır. Bu gelişmelerin yanısıra 2000’li yıllarda yapılan reform çalışmaları sonucunda yerel yönetimlerin görevlerinin niteliğinde ve niceliğinde önemli değişimler meydana gelmiştir. Bilişim teknolojilerinin hizmet sunumu ve karar verme süreçlerinde kullanımı, yerel yönetim birimlerinin kendilerinden beklenen görev ve sorumluluklarının üstesinden gelebilmelerine önemli katkılarda bulunmaktadır. Bu çalışma, Kırşehir İl Özel İdaresi’nde gerçekleştirilen yerel hizmet sunumunda bilişim teknolojileri kullanımını analiz etmeyi amaçlamaktadır. Çalışma, alan araştırmasına dayanmaktadır. Alan araştırmasında anket ve mülakat yöntemleri kullanılmış ve ayrıca kurumun web sitesi analiz edilmiştir. Araştırma sonuçlarına göre kurum, internet kullanıcılığı ve hizmetlerin internet aracılığı ile sunumu açısından gelişme aşamasındadır. İnternet aracılığı ile hizmet sunumu ve yönetimin internete taşınması konusunda çalışmaların devam etmesi beklenmektedir.

  5. « Yémen nouveau, futur meilleur » ? “New Yemen and a brighter future ?” Getting back to the 2006 presidential election

    Directory of Open Access Journals (Sweden)

    Marine Poirier

    2008-04-01

    Full Text Available Si l’élection présidentielle du 20 septembre 2006 reconduit ‘Alî ‘Abd Allâh /Sâli/h au sommet de l’ état avec 77% des voix, elle ne marque pas moins une transformation majeure de la scène politique yéménite. Pour la première fois, le président est mis en situation de compétition électorale par une opposition qui, en se réunissant autour d’un candidat unique, parvient à transcender le clivage opposant traditionnellement les partisans de la gauche aux formations islamistes. Cependant, la rénovation de l’enjeu électoral n’éloigne pas significativement le Yémen de la « norme institutionnelle arabe », le régime s’assurant du verrouillage autoritaire du scrutin. Quel est donc l’effet « élection 2006 » ? Dans quelle mesure le jeu politique a-t-il été durablement remodelé par l’introduction de la concurrence ? En offrant des horizons pluralistes sans toutefois contrarier les dynamiques de personnalisation du pouvoir, l’élection n’a-t-elle pas favorisé l’essor de nouvelles formes de contestation politique ?If the presidential election of September 2006 confirmed ‘Alî ‘Abd Allâh /Sâli/h at the head of the State with 77% of the votes, it nonetheless represents a major transformation of Yemeni political scene. For the first time, the president was confronted to electoral contest, as the opposition, gathered around a unique candidate, succeeded in surpassing the traditional leftist - islamist antagonism. However, the renewal of the electoral stake has not really averted Yemen from the “Arab institutional norm”, the regime ensuring an authoritarian lock of the poll. What is, then, the “2006 election” effect? To which extent has the political game been durably remodelled? By offering pluralist prospects without challenging the dynamics of personalization of power, hasn’t the election encouraged the rise of new forms of political contestation?

  6. “Hak Temelli” Sosyal Politikadan “Hayırseverlik Temelli” Sosyal Politikaya Geçişte Sivil Toplum Örgütlerinin Rolü / Roles of NGOs in the Transition from “Rights-Based” Social Policy to “Charity-Based” Social Policy

    Directory of Open Access Journals (Sweden)

    Doğa Başar SARIİPEK

    2017-02-01

    Full Text Available Sosyal politikanın geleceğini tartışmak, aslında sosyal politika kurumlarının geleceğini ve aralarındaki işbölümünün niteliğini tartışmaktır. Nitekim devlet, aile, piyasa ve sivil toplum örgütleri şeklinde sayabileceğimiz bu kurumlar arasındaki ilişkinin niteliği, aslında her toplumun sosyal koruma rejimini de belirlemektedir. Bu kurumlar arası ilişkide asli ve değişmez olması gereken aktör devlettir. Yani devletsiz bir sosyal politika düşünmek mümkün değildir. Devletin bu değişmezliği içinde diğer kurumların rolü ise onu tamamlamaktır. Ancak son yıllarda neoliberal düşüncelerin başını çektiği bir dizi değişimle birlikte, devlet temelli refahtan, çoğulcu refah düzenine geçişin önü açılmaya çalışılmakta ve sivil toplum örgütlerinin rol ve sorumluluğu da yeniden tanımlanmaktadır. Bu süreçte, sosyal politika kurumları arasındaki geleneksel birbirini “tamamlama” ilişkisi, “ikame” ilişkisine dönüştürülmeye çalışılmakta ve devletin sorumluluğu diğer kurumlara devredilmeye çabalanmaktadır. Sosyal korumaya sadece maliyet penceresinden bakan ve sosyal harcamaları azaltmayı tek hedef olarak belirleyen bu bakış açısı, iddia ettiğinin aksine sosyal politikanın değişen toplum koşullarına uyarlanması ve geleceğinin güvence alınması değil, aksine “hak temelli sosyal politika” yaklaşımından uzaklaşıp, “hayırseverlik temelli sosyal politika” yaklaşımına geçiş anlamına gelmektedir. Sivil toplum örgütlerinin bizzat devlet tarafından güçlendirilmesiyle koşut yürütülmeye çalışılan bu süreç, kesin olarak vatandaşların sosyal politika haklarında bir gerilemeye işaret etmekte ve sivil toplum örgütlerinin geleneksel olarak üstlendiği bireylerin sosyal koruma rol ve sorumluluğunun da içini boşaltmaktadır. / Discussion of the future of social policy cannot be managed without referring to its institutions

  7. Geometric constraint subsets and subgraphs in the analysis of assemblies and mechanisms Geometric constraint subsets and subgraphs in the analysis of assemblies and mechanisms

    Directory of Open Access Journals (Sweden)

    Oscar E Ruiz

    2006-06-01

    Full Text Available Geometric Reasoning ability is central to many applications in CAD/CAM/CAPP environments. An increasing demand exists for Geometric Reasoning systems which evaluate the feasibility of virtual scenes specified by geometric relations. Thus, the Geometric Constraint Satisfaction or Scene Feasibility (GCS/SF problem consists of a basic scenario containing geometric entities, whose context is used to propose constraining relations among still undefined entities. If the constraint specification is consistent, the answer of the problem is one of finitely or infinitely many solution scenarios satisfying the prescribed constraints. Otherwise, a diagnostic of inconsistency is expected. The three main approaches used for this problem are numerical, procedural or operational and mathematical. Numerical and procedural approaches answer only part of the problem, and are not complete in the sense that a failure to provide an answer does not preclude the existence of one. The mathematical approach previously presented by the authors describes the problem using a set of polynomial equations. The common roots to this set of polynomials characterizes the solution space for such a problem. That work presents the use of Groebner basis techniques for verifying the consistency of the constraints. It also integrates subgroups of the Special Euclidean Group of Displacements SE(3 in the problem formulation to exploit the structure implied by geometric relations. Although theoretically sound, these techniques require large amounts of computing resources. This work proposes Divide-and-Conquer techniques applied to local GCS/SF subproblems to identify strongly constrained clusters of geometric entities. The identification and preprocessing of these clusters generally reduces the effort required in solving the overall problem. Cluster identification can be related to identifying short cycles in the Spatial Constraint graph for the GCS/SF problem. Their preprocessing

  8. Matematik Dersinde İsteğe Bağlı Çevrimiçi Kısa Sınav Uygulanması Hakkında Öğrenci Görüşleri

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    Harun ÇİĞDEM

    2014-12-01

    Full Text Available Bu çalışmanın amacı öğrencilerin harmanlanmış öğretim kapsamında kullandıkları çevrimiçi quiz sistemi hakkındaki görüşlerinin ortaya konmasıdır. Harmanlanmış öğretim, yüz yüze öğretim ile web tabanlı öğrenme yönetim sisteminin birlikte kullanılmasıyla oluşturulmuştur. Betimsel yöntem desenindeki çalışma bir meslek yüksekokulunda Matematik-I dersini alan 204 öğrenci üzerinde gerçekleştirilmiştir. Dersler sınıf ortamında yürütülmüş ve intranet üzerinden öğrencilere powerpoint (ppt sunuları, ders notları ve quizler sunulmuştur. Çevrimiçi quizler ile ünite bazlı toplam 126 maddelik çoktan seçmeli test maddesi havuzundan öğrencilerin yararlanmaları sağlanmıştır. Dönem sonunda öğrencilerin çevrimiçi quizler hakkındaki görüşlerini belirlemek amacıyla Çevrimiçi Quiz Değerlendirme Formu kullanılmıştır. Hazırlanan form, 103 öğrenci tarafından cevaplanmıştır. Verilerin analizinde frekans, ortalama ve t testi kullanılmıştır. Öğrencilerin genel olarak çevrimiçi quiz konusunda kararsız kaldıkları belirlenmiştir. Bilgisayar sahibi olan öğrencilerin bilgisayar sahibi olmayanlara göre, evinde internet bağlantısı olan öğrencilerin evinde internet bağlantısı olmayan öğrencilere göre ve daha önce web tabanlı sınav deneyimi olan öğrencilerin, web tabanlı sınav konusunda herhangi bir deneyimi olmayan öğrencilere göre çevrimiçi quizler konusunda daha olumlu oldukları bulunmuştur. Çevrimiçi quiz uygulamasının soru bankasının oluşturulmasının özellikle Matematik dersi için oldukça zaman alıcı olduğu belirlenmiştir. Uygulamanın en önemli avantajları öğrenci quizlerini okumak için gereken zamanın azalması ve kaynakların etkin kullanılmasıdır.

  9. The functional renormalization group for interacting quantum systems with spin-orbit interaction

    International Nuclear Information System (INIS)

    Grap, Stephan Michael

    2013-01-01

    We studied the influence of spin-orbit interaction (SOI) in interacting low dimensional quantum systems at zero temperature within the framework of the functional renormalization group (fRG). Among the several types of spin-orbit interaction the so-called Rashba spin-orbit interaction is especially intriguing for future spintronic applications as it may be tuned via external electric fields. We investigated its effect on the low energy physics of an interacting quantum wire in an applied Zeeman field which is modeled as a generalization of the extended Hubbard model. To this end we performed a renormalization group study of the two particle interaction, including the SOI and the Zeeman field exactly on the single particle level. Considering the resulting two band model, we formulated the RG equations for the two particle vertex keeping the full band structure as well as the non trivial momentum dependence of the low energy two particle scattering processes. In order to solve these equations numerically we defined criteria that allowed us to classify whether a given set of initial conditions flows towards the strongly coupled regime. We found regions in the models parameter space where a weak coupling method as the fRG is applicable and it is possible to calculate additional quantities of interest. Furthermore we analyzed the effect of the Rashba SOI on the properties of an interacting multi level quantum dot coupled to two semi in nite leads. Of special interest was the interplay with a Zeeman field and its orientation with respect to the SOI term. We found a renormalization of the spin-orbit energy which is an experimental quantity used to asses SOI effects in transport measurements, as well as renormalized effective g factors used to describe the Zeeman field dependence. In particular in asymmetrically coupled systems the large parameter space allows for rich physics which we studied by means of the linear conductance obtained via the generalized Landauer

  10. Gezi’nin Dili: Göstergebilimsel Bir İnceleme / The Language of Taksim Gezi Park Protests: A Semiotic Review

    Directory of Open Access Journals (Sweden)

    Ahmet GÜVEN

    2014-09-01

    Full Text Available Türkiye’nin yakın tarihinde meydana gelmiş olan ve birçok açıdan ilkleri barındıran Gezi Parkı Olayları, göstericilerin kullandıkları dil açısından da dikkat çekicidir. Özellikle sloganlar ve duvar yazıları şeklinde karşımıza çıkan bu farklı dil, olaylar esnasında da sıkça dile getirilmiş, pek çok köşe yazısına ve mizah dergisine de konu olmuştur. Önceki dönemlerdeki gösteri ve protestoların dillerine kıyasla Gezi’nin dili belirgin bir farklılık arz etmektedir. Dildeki bu değişim/dönüşüm toplumsal olayları okumak açısından anahtar niteliğindedir. Kültürün ve dolayısıyla toplumsal olayların dil gibi yapılandığı kabul edildiğinde doğrudan göstergebilimsel bir incelemenin alanına girilmiş olur. Bu çalışmada Gezi Parkı Olaylarındaki söylem göstergebilim kavramlarından olan metaforik ve metonimik bağlamlarda incelenecektir. Bunu yaparken Gezi Parkı Olayları sürecinde kullanılan sloganlar ve duvar yazıları temel alınacaktır. Bu slogan ve duvar yazılarının yapılarında metaforik düzlemden metonimik düzleme doğru bir dönüşüm olduğunu varsayıyoruz. Metonimik düzleme doğru meydana gelen dönüşümü ise toplumsal dönüşümün okunabilmesi için uygun bir anahtar olarak değerlendiriyoruz. / The protesters’ language used in Taksim Gezi Park Protests which has included many initials in many aspects in Turkey is remarkable. That this different language has been manifested especially in the form of slogans and graffitis has been subjected to many column and humor magazines during the protests. In comparison to older protests Gezi has many distinct differences. This transformation in language has played a key role to understand social movements. When we accept the culture and accordingly social movements are structured as language we enter the field of semiotics directly. The aim of this study is to examine the discourse of Gezi Park Protests in the

  11. Phytophagous Arthropod Species Associated with Oil Bearing Rose, Rosa damascena Miller, in Isparta Province with Distributional Remarks

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    Ozan Demirözer

    2011-05-01

    Full Text Available Abstract: The study is based on field researches made in 2006–2007 in order to determine the phytophagous arthropod species and the deployment of those species that are economically important in the oil-bearing rose production fields in the province of Isparta. As a result, 62 species were determined, 60 of which belongs to 24 families of 6 orders in Insecta and 2 of which belongs to 2 families of 1 order in Arachnida. In the study, 57 species were identified up to species level and 5 species were identified up to genus level. It is seen that 20 species of them are previously identified as pests in Rosa damascena Miller in production fields in the literature. Ten of the species determined in the study are recorded as new for the oil-bearing rose pest fauna in the province of Isparta. Key words: Oil Bearing Rose, Rosa damascena, pest, phytophagous, Isparta Özet: Bu çalışma, Isparta ili yağ gülü üretim alanlarında bulunan fitofag türlerin belirlenmesi ve ekonomik açıdan önemlilerinin yayılışlarının ortaya çıkarılması amacıyla 2006-2007 yılları arasında yürütülmüştür. Çalışma sonucunda, Insecta sınıfının 6 takımına ait 24 familyadan toplam 60, Arachnida sınıfına ait 1 takıma bağlı 2 familyadan 2 olmak üzere toplamda 62 türün varlığı belirlenmiştir. Çalışmada 57 adet örneğin tür düzeyinde teşhisleri tamamlanırken, 5 türün cins düzeyine kadar teşhisleri yapılmıştır. Yapılan literatür çalışmalarında bu araştırmada belirlenen türlerden 20'sinin daha önceden Rosa damascena Miller üretim alanlarında zararlı olarak bildirildiği saptanmıştır. Çalışmada belirlenen türlerden 10'u ise Isparta ili yağ gülü zararlı faunası için yeni kayıt niteliği taşımaktadır. Anahtar kelimeler: Yağ gülü, Rosa damascena, zararlı, fitofag, Isparta

  12. ASSESSMENT OF THE INFLUENCE OF MODERN CRUSTAL MOVEMENTS AND THE RECENTLY ACTIVATED PRECAMBRIAN STRUCTURAL PLAN ON THE RELIEF OF THE LAKE LADOGA REGION (THE SOUTHEASTERN BALTIC SHIELD

    Directory of Open Access Journals (Sweden)

    A. O. Agibalov

    2017-01-01

    Full Text Available This paper describes the influence of modern crustal movements and the recently activated Precambrian structural plan on the relief of theLakeLadogaregion. It presents the results of comprehensive studies, including processing of the regional geological and geomorphological data by the modern methods, as the major novelty of our work. The solutions of earthquake focal mechanisms suggest the current subhorizontal NW compression in the study area. Based on the computer simulation by the Roxar software, we have identified areas wherein new fractures are most likely to occur, determined the dominant directions of such fractures, and revealed the areas of intense vertical movements in the given stress state. The input database included a digital model of the relief and the spatial patterns of ancient faults represented by large-size inhomogeneities influencing the stress field. Strain values were estimated from the horizontal displacements recorded by the International GPS Service for Geodynamics (IGS and the GPS networks in theRepublicofKareliaand the southeastern regions ofFinland. Using the LESSA software, we have estima­ted the relief orientation characteristics: the density of lineaments, and elongation lines, which are indicative of the changes in the dominant directions of the strike of the lineaments (‘hatches’ in the study area. By interpreting the satellite images and the topographic maps (scale 1:20000, we reveal a number of geological structures, such as gra­nite-gneiss domes and large-size faults, which are directly reflected in the relief. The study results give grounds to establish an indirect relationship between the relief and the modern field of deformation: the areas with high strain values correspond to the areas with steep slopes. The computer simulation data show a NE-trending linear zone with the increased amplitudes of vertical movements. This zone occupies the region along the NW shoreLakeLadoga. In the block

  13. The magmatic evolution and genesis of the Quaternary basanite-trachyphonolite suite of Itasy (Madagascar) as inferred by geochemistry, Sr-Nd-Pb isotopes and trace element distribution in coexisting phases

    Science.gov (United States)

    Melluso, L.; Tucker, R. D.; Cucciniello, C.; le Roex, A. P.; Morra, V.; Zanetti, A.; Rakotoson, R. L.

    2018-06-01

    feature also shown in the trace element composition of the phenocrysts in trachyphonolites. Supplementary Table S2: synopsis of the mineral assemblages of the main lithotypes of the Itasy complex. Supplementary Table S3: composition of olivine of the Itasy rocks. Supplementary Table S4: composition of oxides of the Itasy rocks. Supplementary Table S5: composition of pyroxene of the Itasy rocks. Supplementary Table S6: composition of amphibole, biotite and rhönite of the Itasy rocks. Supplementary Table S7: composition of feldspar and glass of the Itasy rocks. Supplementary Table S8: composition of feldspathoids of the Itasy rocks. Supplementary Table S9: composition of titanite, apatite, other accessories of the Itasy rocks. Supplementary Table S10: Recapitulation of mass balance calculations between rocks of different degree of magmatic evolution, and detailed results. The composition of the phases is reported in the supplementary tables. Supplementary Table S11: average REE mineral/bulk rock ratios for titanite, amphibole and clinopyroxene. The partition coefficients of titanite, clinopyroxene, apatite and amphibole are taken from Olin and Wolff (2012), Fedele et al. (2009, 2015) and Tiepolo et al. (2007). Note that amphibole of RT-06I-355 could not be considered in equilibrium with the host rock (cf. Supplementary Figs. S1a, S1b, S1c).

  14. The possibilities of a modelling perspective for school mathematics

    Directory of Open Access Journals (Sweden)

    Dirk Wessels

    2009-09-01

    complex teaching methodology requires in-depth thinking about the role of the teacher, the role of the learner, the nature of the classroom culture, the nature of the negotiation of meaning between the teacher and individuals or groups, the nature of selected problems and material, as well as the kind of integrative assessment used in the mathematics classroom. Modelling is closely related to the problem-centred teaching approach, but it also smoothly relates to bigger and longer mathematical tasks. This article gives a theoretical exposition of the scope and depth of mathematical modelling. It is possible to introduce modelling at every school phase in our educational sytem. Modelling in school mathematics seems to make the learning of mathematics more effective. The mastering of problem solving and modelling strategies has definitely changed the orientation, the competencies and performances of learners at each school level. It would appear from research that learners like the application side of mathematics and that they want to see it in action. Genuine real life problems should be selected, which is why a modelling perspective is so important for the teaching and mastering of mathematics. Modelling should be integrated into the present curriculum because learners will then get full access to involvement in the classroom, to mathematisation, to doing problems, to criticising arguments, to finding proofs, to recognising concepts and to obtaining the ability to abstract these from the realistic situation. Modelling should be given a full opportunity in mathematics teacher education so that our learners can get the full benefit of it. This will put the mathematical performances of learners in our country on a more solid base, which will make our learners more competitive at all levels in the future. 

  15. The Vision of the Role of Hydrogen in Energy Supply in the Future

    International Nuclear Information System (INIS)

    Barbir, F.

    2008-01-01

    Europe is in a very difficult situation regarding the future of energy supply because it is highly dependent on import of oil and natural gas. In addition, because of environmental pollution, global climate changes, ?nite World reserves of fossil fuels and geo-political implications of distribution of those reserves, such an energy system is not sustainable. The need for inevitable changes in energy supply is becoming more and more obvious. This includes not only a change of the energy sources, but also in energy carriers and technologies for their conversion into useful forms of energy, as well as a change in the ways energy is used today. Based on present knowledge, the only energy sources that satisfy the sustainability requirements are the renewable energy sources - direct solar insolation and its consequences (wind, hydro, biomass). As the renewable energy sources cannot be utilized directly in most of applications there is a need for such energy carriers which can be produced from renewable energy sources and which can satisfy all the energy needs at the end use, again satisfying the sustainability requirements. Electricity is one of such energy carrier which may be used in most but not in all applications. There is a need for other energy carriers in the form of fuels which can be stored and used, for example, in the transportation sector. This is a role that hydrogen can fulfill in a future energy system - hydrogen satisfies the conditions of sustainability, can be produced from renewable energy sources and together with electricity can satisfy all energy needs. Although the role of hydrogen in a future energy system can be envisioned with some certainty, the problem is the transition, i.e. switching from the present energy system based on fossil fuels to the future energy system based on renewable energy sources. Of course, such transition cannot happen overnight, but the question is where and how to start and at which pace to proceed. Insistence on short

  16. DETERMINATION AND STUDY OF NARRATION TOOLS IN ‘HUSBAND AND WIFE TALE’ OF AHMET MİTHAT EFENDİ AHMET MİTHAT EFENDİ’NİN “KARI KOCA MASALI”NDA ANLATI ARAÇLARININ TESPİTİ VE İNCELEMESİ

    Directory of Open Access Journals (Sweden)

    Kadir Can DİLBER

    2010-01-01

    ın metodolojisinden yararlanmaya çalıştık. Bu metodolijiye göre anlatı kendi içerisinde öykü ve söylem diye ikiye ayrılır. Bu çerçeve de değerlendirmeye çalıştığımız “Karı Koca Masalı”nda ilk karşımıza çıkan şey, anlatıcı ve yazarın karşılıklı konuşmaları olur. Bu konuşmalar, anlatının üst kurmaca bir niteliğe sahip olduğunu bize gösterir. Daha sonra bir geciktirme ve oyalama taktiği ile hikâyeyi sonuna kadar okutmayı planlayan yazar ile karşılaştık. Metin içerisinde karı koca tabirlerinden felsefe ve matematiğe kadar uzanan farklı konuları dinledik. İdeal okurunu arayan yazarın okur ile girdiği kurmaca anlaşmasına tanık olduk.

  17. Radiation-induced bystander effect: The important part of ionizing radiation response. Potential clinical implications

    Directory of Open Access Journals (Sweden)

    Maria Wideł

    2009-08-01

    Full Text Available It has long been a central radiobiological dogma that the damaging effects of ionizing radiation, such as cell death, cytogenetic changes, apoptosis, mutagenesis, and carcinogenesis, are the results of the direct ionization of cell structures, particularly DNA, or indirect damage via water radiolysis products. However, several years ago attention turned to a third mechanism of radiation, termed the “bystander effect” or “radiation-induced bystander effect” (RIBE. This is induced by agents and signals emitted by directly irradiated cells and manifests as a lowering of survival, cytogenetic damage, apoptosis enhancement, and biochemical changes in neighboring non-irradiated cells. The bystander effect is mainly observed in in vitro experiments using very low doses of alpha particles (range; mGy, cGy, but also after conventional irradiation (X-rays, gamma rays at low as well as conventional doses. The mechanisms responsible for the bystander effect are complex and still poorly understood. It is believed that molecular signals released from irradiated cells induce different signaling ways in non-irradiated neighboring cells, leading to the observed events. The molecular signals may be transmitted through gap junction intercellular communication and through a medium transfer mechanism. The nature of these transmitted factors are diverse, and still not defi nitely established. It seems that RIBE may have important clinical implications for health risk associated with radiation exposure. Potentially, this effectmay have important implications in the creation of whole-body or localized side effects in tissues beyond the irradiation fi eld and also in low-dose radiological and radioisotope diagnostics. Factors emitted by irradiated cells may result in the risk of genetic instability, mutations, and second primary cancer induction. They might also have their own part in inducing and extending post-radiation side effects in normal tissue. The

  18. Documentation for the MODFLOW 6 Groundwater Flow Model

    Science.gov (United States)

    Langevin, Christian D.; Hughes, Joseph D.; Banta, Edward R.; Niswonger, Richard G.; Panday, Sorab; Provost, Alden M.

    2017-08-10

    This report documents the Groundwater Flow (GWF) Model for a new version of MODFLOW called MODFLOW 6. The GWF Model for MODFLOW 6 is based on a generalized control-volume finite-difference approach in which a cell can be hydraulically connected to any number of surrounding cells. Users can define the model grid using one of three discretization packages, including (1) a structured discretization package for defining regular MODFLOW grids consisting of layers, rows, and columns, (2) a discretization by ver­tices package for defining layered unstructured grids consisting of layers and cells, and (3) a general unstruc­tured discretization package for defining flexible grids comprised of cells and their connection properties. For layered grids, a new capability is available for removing thin cells and vertically connecting cells overlying and underlying the thin cells. For complex problems involving water-table conditions, an optional Newton-Raphson formulation, based on the formulations in MODFLOW-NWT and MODFLOW-USG, can be acti­vated. Use of the Newton-Raphson formulation will often improve model convergence and allow solutions to be obtained for difficult problems that cannot be solved using the traditional wetting and drying approach. The GWF Model is divided into “packages,” as was done in previous MODFLOW versions. A package is the part of the model that deals with a single aspect of simulation. Packages included with the GWF Model include those related to internal calculations of groundwater flow (discretization, initial conditions, hydraulic conduc­tance, and storage), stress packages (constant heads, wells, recharge, rivers, general head boundaries, drains, and evapotranspiration), and advanced stress packages (streamflow routing, lakes, multi-aquifer wells, and unsaturated zone flow). An additional package is also available for moving water available in one package into the individual features of the advanced stress packages. The GWF Model

  19. The Language of Paradox in the Ironic Poetry of Emily Dickinson

    Directory of Open Access Journals (Sweden)

    Mustafa Zeki Cirakli

    2015-12-01

    Full Text Available The Language of Paradox in the Ironic Poetry of Emily Dickinson Abstract Emily Dickinson’s poetry is characterized by her emphasis on ironic use of discourse that amounts to her persistent manifestation of individuality against hypocrisy and vanity. She exerts her peculiar poetic language in a way that helps deplore as well as explore the paradoxical human condition. This paper argues that Dickinson produces a language of poetry, which, in Cleanth Brooks’ terms, provides the reader with the “language of paradox.” Dickinson’s ironic poetry exemplifies Brooks’ idea that ironic poetry is self-conscious and satiric in nature and is made up of a language of paradox. The study, therefore, aims to reveal how the language of paradox in Dickinson’s poetry yields to irony which is primarily associated with her salient assertiveness, isolation and strong individuality. Emily Dickinson’ın İronik Şiirlerinde Paradokslu Dil Öz Emily Dickinson’ın şiirlerini söylemin ironik kullanımı karakterize eder ve bu özellik onun şiirlerinin toplumdaki iki yüzlülük ve riyakârlığa karşı sürdürdüğü kararlı bireysel duruş ve isyanının dışavurumudur. Dickinson, kendine özgü şiirsel dili insanlık durumunun paradoksal niteliğini araştırmak için olduğu kadar eleştirmek için de etkili biçimde kullanmıştır. Dickinson’ın şiiri, Cleanth Brooks’un “paradokslu dil” olarak tanımladığı bir dil kullanır. Brooks, ironik şiirin öz-farkındalığı olan ve doğası gereği eleştirel tonu yüksek ve temelde paradokslu dilden oluşmuş olduğunu ileri sürer. Bu çalışma, Dickinson’ın ironik şiir dilinin Brooks’un bu kanısını doğruladığını ortaya koymaktadır. Dolayısıyla bu çalışma, Dickinson’un şiirlerindeki paradokslu dilin yazarın dikkat çekici sesi, kendini toplumdan soyutlaması ve toplum karşısındaki güçlü bireyselliğinin dışa vurumunu imleyen ironiyi incelemektedir.

  20. Solid State Studies Section

    Energy Technology Data Exchange (ETDEWEB)

    None

    1974-12-31

    magnetic transitions. Heats of transition as small as 2 cal/mole were detected. Studies on the thermodynamics of high temperature materials showed the effects of water vapor on the volatility of U/sub 3/O/sub 8/ phase. Similar studies were completed on germanium oxide and Group IV oxides. Phase transformation in lanthanum cobaltate was deiineated by solid galvanic cell techniques and the free energy formation was calculated. Electrical properties of polycrystalline NiTe thin films showed that the electrical resistivity, temperature coefficient of resistance, and the Hall coefficient were functions of the film thickness. Work has been initiated to use these thin films for developing gauss-meters. In the field of instrumentation, efforts were directed on the microthermogravimetric system incorporating the Sartorius Model 4102 thermobalance. The system, as developed, is capable of continuous operation at 1 microgram sensitivity in static air or vacuum up to 1000 deg C or at 5 microgram sensitivity in flowing gases. In theoretical work the s --d mixing model was used to derive spin wave dispersion relation and obtain the shape of the optical absorption spectrum in transition metals. Spin wave dispersion relations were derived for Mn/sub x/Co/ sub 1-x/F/sub 2/ and gave qualitative agreement with experiment. The Hartree-- Fock and Unrestricted Hartree-- Fock calculations on H/sub 2/ were extended to include configuration interaction. The semilocalized orbital method was extended to HeH/sup +/. (auth)

  1. ULUSLARARASI ÇALIŞMA ÖRGÜTÜ (ILO VE ULUSLARARASI SOSYAL GÜVENLİK TEŞKİLATI (ISSA TARAFINDAN YAYINLANAN ULUSLARARASI BELGELERDE SOSYAL GÜVENLİĞİN KAPSAMI VE TÜRKİYE AÇISINDAN DEĞERLENDİRİLMESİ

    Directory of Open Access Journals (Sweden)

    Cenkhan ALTINTAŞ

    2015-02-01

    Full Text Available Sosyal güvenlik hakkının, evrensel insan haklarından biri olarak kabul edilmesinden bu yana, sosyal güvenliğin kapsamının genişletilmesine yönelik çabalar giderek artmıştır. Uluslararası boyutlara varan bu çabalar, özellikle düşük gelire sahip bireylerin malullük, yaşlılık, ölüm, analık, hastalık, iş kazası ve meslek hastalığı gibi temel sosyal risklere karşı güvence altına alınması üzerine odaklanmaktadır. Uluslararası Çalışma Örgütü (ILO ve Uluslararası Sosyal Güvenlik Teşkilatı (ISSA, sosyal güvenliğin kapsamının genişletilmesi noktasında uluslararası düzeyde çalışmalar yapmakta ve ortaya koydukları parametrelerle sosyal güvenliğin kapsamına ilişkin olarak uluslararası standartlar geliştirmektedirler. Özellikle sosyal güvenliğin kapsamının sınırlı seviyede olduğu düşük ve orta gelire sahip ülkelerde sosyal güvenliğin kapsamının genişletilmesine yönelik bir takım tavsiyeleri de içeren bu tarz çalışmalar, ülkelerin sosyal güvenliğin kapsamını genişletme girişimlerine yardımcı olmakta ve bir nevi rehber olma niteliği taşımaktadır. Bu bağlamda, çalışmada öncelikle ILO ve ISSA’nın sosyal güvenliğin kapsamına ilişkin olarak uluslararası metinlerle ortaya koydukları kavramlar ve parametrelere yer verilmektedir. Diğer bir başlıkta ise Türkiye’de sosyal güvenliğin kapsamı ILO ve ISSA’nın ortaya koyduğu parametreler çerçevesinde ele alınmaktadır.

  2. Otizm Spektrum Bozukluğu (OSB Olan Bireylerin Fiziksel Aktivitelerine İlişkin Yapılan Çalışmaların Gözden Geçirilmesi

    Directory of Open Access Journals (Sweden)

    Bora Görgün

    2016-12-01

    Full Text Available Bu araştırmada, Türkiye’de ve dünyada otizm spektrum bozukluğu (OSB olan bireylerin fiziksel aktivitelerine ilişkin 2004-2014 yılları arasında yapılan tez ve makale çalışmalarının gözden geçirilmesi amaçlanmıştır. Bu araştırma için Yükseköğretim Kurulu (YÖK Ulusal Tez Merkezi, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu Ulusal Akademik Ağ ve Bilgi Merkezi (TÜBİTAK ULAKBİM, EbscoHost, Proquest Dissertations and Theses Global, SAGE ve SpringerLink veritabanları taranmış ve konuyla ilgili 16 tez çalışmasına ve hakemli dergilerde yayınlanmış 33 makaleye ulaşılmıştır. Elde edilen çalışmalar dört kategoride incelenmiştir. “OSB olan bireylerin fiziksel aktivitelerini karşılaştırma” kategorisinde altı, “fiziksel aktivite programının OSB olan bireyler üzerine etkisi” kategorisinde 26, “fiziksel aktiviteye yönelik ailelerin ve öğretmenlerin görüşleri” kategorisinde altı ve “fiziksel aktivite programlarının niteliklerini belirleme ve artırmaya yönelik çalışmalar” kategorisinde 11 çalışma yer almaktadır. Sonuçlar fiziksel aktivitenin OSB olan bireylerin gelişimlerine olumlu katkı sağladığını, ülkemizde yapılan çalışmaların fiziksel aktivitenin etkisi üzerine yoğunlaştığını ve fiziksel aktivite programlarının niteliği, farklı yetersizlik gruplarındaki bireylerle fiziksel aktivite düzeylerinin karşılaştırılması gibi farklı alanlarda çalışmalara ihtiyaç olduğunu göstermektedir. The aim of this study is to review thesis and articles on physical activities of individuals with autism spectrum disorders (ASD published between 2004 and 2014 in Turkey and in the world. Council of Higher Education (YÖK National Thesis Center, The Scientific and Technological Research Council of Turkey National Academic Network and Information Center (TÜBİTAK ULAKBİM, EbscoHost, Proquest Dissertations and Theses Global, SAGE and Springer

  3. Agreement for depression diagnosis between DSM-IV-TR criteria, three validated scales, oncologist assessment, and psychiatric clinical interview in elderly patients with advanced ovarian cancer

    Directory of Open Access Journals (Sweden)

    Rhondali W

    2015-07-01

    Full Text Available Wadih Rhondali,1 Gilles Freyer,2 Virginie Adam,3 Marilène Filbet,4 Martine Derzelle,5 Gaelle Abgrall-Barbry,6 Sophie Bourcelot,7 Jean-Louis Machavoine,8 Muriel Chomat-Neyraud,9 Olivier Gisserot,10 Rémi Largillier,11 Annick Le Rol,12 Frank Priou,13 Pierre Saltel,14 Claire Falandry15 1Clinique Mon Repos, Clinea, Marseille, France; 2Medical Oncology Unit, Centre Hospitalier Lyon Sud, Université Lyon 1, Pierre-Benite, France; 3Institut de Cancérologie de Lorraine Alexis Vautrin, Vandoeuvre-lès-Nancy, France; 4Palliative Unit, Centre Hospitalier Lyon Sud, Université Lyon 1, Pierre-Benite, France; 5Institut Jean Godinot, Reims, France; 6Tenon Hospital, Assistance Publique Hôpitaux de Paris, Paris, France; 7Centre Léon Bérard, Lyon, France; 8Centre François Baclesse, Caen, France; 9Centre Hospitalier de la région d’Annecy, Pringy, France; 10Hôpital d’Instruction des Armées Sainte-Anne, Toulon, France; 11Centre Azuréen de Cancérologie, Mougins, France; 12Medical Oncology, Hôpital Perpétuel Secours, Levallois-Perret, France; 13Medical Oncology, Centre Hospitalier Départemental Les Oudairies, La Roche-sur-Yon, France; 14Supportive Care Department, Centre Léon Bérard, Lyon, France; 15Geriatrics and Oncology Unit, Centre Hospitalier Lyon Sud, Université Lyon 1, Pierre-Bénite, France Background: Depression, a major outcome in cancer patients, is often evaluated by physicians relying on their clinical impressions rather than patient self-report. Our aim was to assess agreement between patient self-reported depression, oncologist assessment (OA, and psychiatric clinical interview (PCI in elderly patients with advanced ovarian cancer (AOC.Methods: This analysis was a secondary endpoint of the Elderly Women AOC Trial 3 (EWOT3, designed to assess the impact of geriatric covariates, notably depression, on survival in patients older than 70 years of age. Depression was assessed using the Geriatric Depression Scale-30 (GDS, the Hospital

  4. Offshore pipelaying dynamics

    Energy Technology Data Exchange (ETDEWEB)

    Jensen, Gullik Anthon

    2010-02-15

    . A passivity analysis establishing input output passivity of the system is performed. This model is applicable in simulations where the main dynamics are required, and the available computation time is limited. Static and dynamic analysis of pipelines during installation is characterized by a combination of geometrical nonlinearities and extreme exibilities of the system. A nonlinear PDE formulation for the pipeline is developed based on a three- dimensional elastic beam model, taking into account the internal forces of longitudinal extension, shearing, twist and bending, as well as external loads from gravity, buoyancy, hydrodynamic drag, seabed interaction, and environmental loads. This highly exible system is then coupled to a dynamic model of the pipe lay vessel. A passivity analysis establishing input-output passivity of these systems separately, and combined, is performed. A nonlinear FEM model, based on exact kinematics, is derived to approximate the solution of the PDE pipe formulation. The weak formulation of the PDE is semi discretized in the curve parameter into a nite dimensional space to obtain an explicit set of ordinary differential equations. This semi-discretized model is solved by using standard integrators for time. The set of ordinary differential equations is a convenient representation for simulation and control of pipe lay operations under dynamic positioning. The model is successfully validated against the natural cautionary and the commercial FEM code Rifle. The model has potentially numerous applications in dynamical analysis, in control system design and simulation, and in tools for training and decision support. (Author)

  5. On the possibility of non-invasive multilayer temperature estimation using soft-computing methods.

    Science.gov (United States)

    Teixeira, C A; Pereira, W C A; Ruano, A E; Ruano, M Graça

    2010-01-01

    This work reports original results on the possibility of non-invasive temperature estimation (NITE) in a multilayered phantom by applying soft-computing methods. The existence of reliable non-invasive temperature estimator models would improve the security and efficacy of thermal therapies. These points would lead to a broader acceptance of this kind of therapies. Several approaches based on medical imaging technologies were proposed, magnetic resonance imaging (MRI) being appointed as the only one to achieve the acceptable temperature resolutions for hyperthermia purposes. However, MRI intrinsic characteristics (e.g., high instrumentation cost) lead us to use backscattered ultrasound (BSU). Among the different BSU features, temporal echo-shifts have received a major attention. These shifts are due to changes of speed-of-sound and expansion of the medium. The originality of this work involves two aspects: the estimator model itself is original (based on soft-computing methods) and the application to temperature estimation in a three-layer phantom is also not reported in literature. In this work a three-layer (non-homogeneous) phantom was developed. The two external layers were composed of (in % of weight): 86.5% degassed water, 11% glycerin and 2.5% agar-agar. The intermediate layer was obtained by adding graphite powder in the amount of 2% of the water weight to the above composition. The phantom was developed to have attenuation and speed-of-sound similar to in vivo muscle, according to the literature. BSU signals were collected and cumulative temporal echo-shifts computed. These shifts and the past temperature values were then considered as possible estimators inputs. A soft-computing methodology was applied to look for appropriate multilayered temperature estimators. The methodology involves radial-basis functions neural networks (RBFNN) with structure optimized by the multi-objective genetic algorithm (MOGA). In this work 40 operating conditions were

  6. Apport diagnostique de la cervicotomie exploratrice: étude rétrospective de 300 cas

    Science.gov (United States)

    Darouassi, Youssef; Chihani, Mehdi; Touati, Mohamed Mliha; Ammar, Haddou; Bouaity, Brahim

    2015-01-01

    Les tuméfactions cervicales représentent un motif fréquent de consultation, et les adénopathies en constituent l’étiologie la plus fréquente. L'examen clinique et les bilans paracliniques permettent, dans la majorité des cas de retrouver une étiologie. Néanmoins certaines de ces tuméfactions restent d'origine non précisée, portant donc l'indication d'une cervicotomie exploratrice. Il s'agit d'une étude rétrospective d'une série de 300 cas de tuméfactions cervicales isolées colligées au service d'ORL de l'hôpital militaire Avicenne de Marrakech entre 2001 et 2014. Tous nos patients ont bénéficié d'une cervicotomie exploratrice avec étude anatomo-pathologique. L’âge des patients varie entre 1 et 76 ans avec un âge moyen de 32,57 ans et une légère prédominance masculine de 52%. La symptomatologie qui a motivé une consultation chez 81% des patients était la tuméfaction latérocervicale. La localisation la plus fréquente était sous mandibulaire (33,34%). Les tuméfactions d'installation progressive ont été retrouvées chez 93,34% des patients. Les principales étiologies retrouvées dans notre étude après examen anatomopathologique étaient de deux types: soit d'origine ganglionnaire dominées par la tuberculose ganglionnaire cervicale (53,66%), le lymphome malin non hodgkinien (6,66%), les adénites réactionnelles non spécifiques (4,66%), la maladie deHodgkin (4,33%) et les métastases ganglionnaires cervicales (3,33%); soit d'origine non ganglionnaire dont le lipome cervicale (17,66%), les kystes branchiaux (6%), les kystes du tractus thyréoglosse (1,66%) et le lymphangiome kystique (1,66%). A la lumière des résultats obtenus et des données de la littérature, nous allons discuter l'intérêt et l'utilité de la cervicotomie exploratrice dans le diagnostic étiologique des tuméfactions cervicales lorsque les examens cliniques et paracliniques ne sont pas concluants, et ainsi d'analyser les aspects

  7. Avrupa Merkez Bankası'nın (AMB Euro Yönetimindeki Etkinlik Sorununun Analizi ( Efficiency Management Problem Of European Central Bank (ECB About The Euro

    Directory of Open Access Journals (Sweden)

    Hüseyin ÖZDEŞER

    2015-12-01

    Full Text Available The necessity of a monetary integration process in the European Union is inarguable. Monetary Union has a corner stone role for letting Economy in the EU to act as a whole. Only 19 members of the EU take place in the Euro Zone. In this case; there is a long time needed for completion the monetary integration process. European Central Bank (ECB which is responsible for the monetary policy application in Euro Zone, will have serious weakness and desperation and having them is inevitable; because the economic and political integration of the EU is not completed yet. All kinds of conflicts in political and economic integration process of the EU and economic crises, will have negative impacts on the EU and also on Euro. ECB is helpless about any negative developments that take place or may take place in European Monetary Union (EMU Area and it does not have an efficient intervention chance for preventing the negative impacts occurring on the Euro. The aim of the study is to present the weakness and desperation of the ECB about applying policies for a stable Euro. Avrupa Birliği'nde (AB Parasal Birlik sürecinin gerekliliği tartışılmazdır. Parasal Birlik; ekonominin AB içerisinde bir bütünsel olarak hareketliliğinin sağlanabilmesi açısından köşe taşı niteliğindedir. AB'nde şu an için toplam 28 olan AB üyesi ülkeden yalnızca 19 üye euro bölgesinde yer almaktadır. Bu durum parasal entegrasyonun tamamlanabilmesi için uzun süreye ihtiyaç olduğunun göstergesidir. Euro bölgesinde para politikalarının uygylanmasından sorumlu olan Avrupa Merkez Bankası (AMB, AB'nin ekonomik ve siyasi entegrasyonunun tamamlanmamasından dolayı ciddi zaaflar ve çaresizlikler yaşamaktadır; ve yaşaması da kaçınılmazdır. AB ve euro bölgesinde yaşanan her türlü sayasi ve ekonomik entegrasyon süreçlerindeki çatışmalar ve aynı zamanda ekonomik krizler; AB'ni ve euroyu olumsuz etkilemektedir. Yalnızca euronun y

  8. Gifted and Talented Education in Turkey: Critics and Prospects/Türkiye'de Üstün Yeteneklilerin Eğitiminin Eleştirel Bir Değerlendirmesi

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    Uğur Sak

    2015-12-01

    rkiye’de üstün yeteneklilerin eğitiminin son yıllarda dikkate değer düzeyde gelişmesine karşın tanımlardaki tutarsızlıklar, tanım ve uygulama arasındaki uyumsuzluk, ulusal tanılamalardaki yetersizlikler, program türlerinin yetersizliği, öğretmen niteliğinin düşüklüğü, program geliştirmede uzman yetersizliği ve üstün yeteneklilerin eğitimine karşı olan tutumlar gibi önemli bazı problemler hala çözüm beklemektedir. Anahtar Sözcükler: Türkiye, üstün yeteneklilerin eğitimi

  9. City Satires in the Classical Turkish Poetry and Arpaemîni-zâde Mustafa Samî’s Qasida of Edirne Klasik Türk Şiirinde Şehir Hicivleri ve Arpaemîni-zâde Mustafa Samî’nin Edirne Kasidesi

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    Fatma Sabiha KUTLAR

    2011-06-01

    Full Text Available ABSTRACT In the classical Turkish poetry, there are satirical examples among the poems which is subject about settlement places like cities, towns and villages. Poets, in these texts, had satirized various settlement place at imperial geography, generally because of its place name and folk features under cover of rhetoric and argo, reasons such as “disapprobation, aversion of the folk, disappointment, getting irritate from nature or geographical location, to be dispatched involuntarily”. In this study, the city satires that put down on paper by the Divan poets shortly familiarized which we have made firm, and it is focused on the Edirne satire of the XVIII. century poets Arpaemîni-zâde Mustafa Samî which put down on paper his negative feelings about the Edirne city, combining by negative features of the winter season. By the expressions in this qasida, the poet revealed intimately that he doesn’t like the Edirne and its folk. Likewise, he had indicated the contention among the two capital city of Ottoman Empire which its root reached to conquest years, continued implicitly beginnig of the XVIII. Century. Klasik Türk şiirinde şehir, kasaba, köy gibi yerleşim yerlerinin konu edildiği manzumeler arasında hiciv niteliği taşıyan örnekler de bulunmaktadır. Şairler, bu metinlerde “beğenmeme, halkından hoşlanmama, umduğunu bulamama, doğasından ya da coğrafî konumundan rahatsızlık duyma, isteği dışında gönderilme” gibi çok farklı gerekçelerle İmparatorluk coğrafyasına ait birçok yerleşim yerini, genellikle isminden ya da halkının özelliklerinden hareketle söz sanatlarından ve argo ifadelerden de yararlanarak hicvetmişlerdir. Bu çalışmada divan şairlerinin kaleme aldığı şehir hicivlerinin tespit ettiğimiz örnekleri kısaca tanıtılmış ve XVIII. yüzyıl şairlerinden Arpaemîni-zâde Mustafa Samî’nin, Edirne’ye ilişkin olumsuz duygularıyla kış mevsiminin olumsuz

  10. Mise en solution et précipitation de l'uranium et du thorium dans les conditions de moyenne et haute température (résumé Solution and Precipitation of Uranium and Thorium under Average and High-Temperature (Summary

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    Moreau M.

    2006-11-01

    Full Text Available Les études tant analytiques qu'expérimentales réalisées au cours des vingt dernières années ont bien montré le rôle joué par les complexes d'uranylcarbonates dans le transport de l'uranium en milieu hydrothermal oxydant ou faiblement réducteur. Les travaux expérimentaux actuels sur la mobilité de U et Th, à haute température et haute pression, montrent la très grande différence de solubilité entre UO2 et ThO2, comme l'influence des ions complexants et celles de fO2 et aH+. Ces résultats expérimentaux sont comparés aux données recueillies sur les leucogranites et les granites calcoalcalins (France et divers gisements ou anomalies en uranium (Québec, Rössing, Madagascar, etc.. Dans la catazone U et Th précipitent sous forme de solutions solides d'uranothorianite dans les milieux déficitaires en silice, et sous forme d'uranothorite dans les granites et les syénites La précipitation d'uraninite non thorifère dans les leucogranites français s'explique d'abord par la faible concentration en thorium des solutions aqueuses durant la phase deutérique. Au cours du métamorphisme progressif on peut observer un retard dans la mobilisation de l'uranium en conditions relativement oxydantes, quand U est associé à Ti et OH. Dans le domaine mésozonal la brannérite stabilise l'uranium en présence de titane jusqu'à l'anatexie. Au-delà elle se dissocie en donnant de l'uraninite non thorifère et du rutile. Both analytic and experimental research done over the Iast twenty years has revealed the role played by uranylcarbonate complexes in the transfer of uranium in an oxidant or slightly reducing hydrothermal medium. Recent experimental research on the mobility of U and Th, at high temperature and high pressure, shows the great difference in solubility between UO2 and ThO2, like the influence of complexing ions and of fO2 and aH+. These experimental findings are compared to data gathered on leucogranites and colcoalkaline granites

  11. Does intraoperative neuromonitoring of recurrent nerves have an impact on the postoperative palsy rate? Results of a prospective multicenter study.

    Science.gov (United States)

    Mirallié, Éric; Caillard, Cécile; Pattou, François; Brunaud, Laurent; Hamy, Antoine; Dahan, Marcel; Prades, Michel; Mathonnet, Muriel; Landecy, Gérard; Dernis, Henri-Pierre; Lifante, Jean-Christophe; Sebag, Frederic; Jegoux, Franck; Babin, Emmanuel; Bizon, Alain; Espitalier, Florent; Durand-Zaleski, Isabelle; Volteau, Christelle; Blanchard, Claire

    2018-01-01

    neuromonitoring does not decrease postoperative recurrent laryngeal nerve palsy rate. Due to its high specificity, however, intraoperative neuromonitoring is useful to predict normal vocal cord mobility. From the CHU de Nantes, a Clinique de Chirurgie Digestive et Endocrinienne, Nantes, France; CHU Lille, Université de Lille, b Chirurgie Générale et Endocrinienne, Lille, France; CHU Nancy-Hôpital de Brabois, c Service de Chirurgie Digestive, Hépato-Biliaire, et Endocrinienne, Nancy, France; CHU Angers, d Chirurgie Digestive et Endocrinienne, Angers, France; CHU de Toulouse-Hôpital Larrey, e Chirurgie Thoracique, Pôle Voies Respiratoires, Toulouse; CHU Saint-Etienne-Hôpital Nord, f ORL et Chirurgie Cervico-Faciale et Plastique, Saint-Etienne, France; CHU de Limoges-Hôpital Dupuytren, g Chirurgie Digestive, Générale et Endocrinienne, Limoges, France; CHU de Besançon-Hôpital Jean Minjoz, h Chirurgie Digestive, Besançon, France; Centre Hospitalier du Mans, i Service ORL et Chirurgie Cervico-Faciale, Le Mans, France; Centre Hospitalier Lyon-Sud, j Chirurgie Générale, Endocrinienne, Digestive et Thoracique, Pierre Bénite, France; AP-HM-Hôpital de La Conception, k Chirurgie Générale, Marseille, France; CHU de Rennes-Hôpital Pontchaillou, l Service ORL et Chirurgie Maxillo-Faciale, Rennes, France; CHU de Caen, m ORL et Chirurgie Cervico-Faciale, Caen, France; CHU d'Angers, n ORL et Chirurgie Cervico-Faciale, Angers, France; CHU de Nantes, o Service ORL, Nantes, France; AP HP URCEco île-de-France, p hôpital de l'Hôtel-Dieu, Paris, France; DRCI, département Promotion, q Nantes, France. Copyright © 2017 Elsevier Inc. All rights reserved.

  12. Ferhat İle Şirin Hikâyesi’nde Büyülü Gerçekçilik Magical Realism In The Tale Of Ferhat And Şirin

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    Mehmet Emin BARS

    2012-12-01

    depths of oral literature. In our study, in the writing work, placed in Seyfettin Özege bookcase in Atatürk University Central Library by the name of the tale of Ferhat and Şirin, the being of the style of magical realism is going to be studied. Halk hikâyeleri, göçebelikten yerli hayata geçişin ilk mahsullerindendir. Genellikle aşk ve kahramanlık konularını işlerler. Kaynağını Türk, Arap-İslam ve Hint-İran kültüründen alan bu ürünler, büyük ölçüde âşıklar ve meddahlar tarafından anlatılan nazım nesir karışık anlatımlardır. Türk halk hikâyeleri milletimizin roman ihtiyacını karşılayan eserlerdir. Ferhat ile Şirin hikâyesi de uzun yıllar halkın bu ihtiyacını karşılamıştır. Ferhat ile Şirin hikâyesi İran edebiyatının mesnevi konuları arasında önemli yer tutar. Hüsrev ü Şirin adıyla da bilinen hikâye divan edebiyatında da mesnevi konusu olarak işlenmiştir. Hikâye halk edebiyatında Ferhat ile Şirin adıyla anılmıştır. Ferhat ile Şirin hikâyesi, Hüsrev ü Şirin mesnevisinin bir parçasıdır. Hüsrev ü Şirin mesnevisinin konusu Sasani hükümdarlarından Hüsrev Perviz’in hayatına ve aşk maceralarına dayanmaktadır. Hikâye yüksek zümre edebiyatında olduğu gibi halk edebiyatında da ele alınmış ve geniş halk kitleleri tarafından beğenilerek dinlenmiştir. Hikâye yazılı metinlerden sözlü edebiyata geçişte bazı değişikliklere uğramış, birçok varyantı meydana gelmiş, hikâyenin tarihî ve coğrafî çerçevesi de değişerek bir kısmı Anadolu’ya adapte edilmiştir. Büyülü gerçekçilik terimi ise, ilk olarak Alman sanat eleştirmeni ve tarihçisi Franz Roh tarafından, 1925’te dönemin Alman ressamlarının, konuları ve temaları hayal ürünü, fantastik ve rüyamsı niteliğe sahip çalışmalarını anlatmak amacıyla kullanılmıştır. Terim, edebiyatta ilk olarak, İtalyan yazar ve eleştirmen Massimo Bontempelli tarafından kullanılmıştır. Bu

  13. Schwinger terms from external field problems

    Science.gov (United States)

    Ekstrand, Christian

    1999-01-01

    The current algebra for second quantized chiral fermions in an external eld contains Schwinger terms. These are studied in two di erent ways. Both are non-perturbative and valid for arbitrary odd dimension of the physical space, although explicit expressions are only given for lower dimensions. The thesis is an introductory text to the four appended research papers. In the rst two papers, Schwinger terms are studied by realizing gauge transformations as linear operators acting on sections of the bundle of Fock spaces parametrized byvector potentials. Bosons and fermions are mixed in a Z2-graded fashion. Charged particles are considered in the rst paper and neutral particles in the second. In the the third and the fourth paper, Schwinger terms are identi ed with cocycles obtained from the family index theorem for a manifold with boundary. A generating form for the covariant anomaly and Schwinger term is obtained in the third paper. The rst three papers consider Yang-Mills while the fourth (in cooperation with Jouko Mickelsson) also includes gravitation. Key words: Schwinger terms, external anomaly, Z2-grading, index theory. eld problems, higher dimensions, chiral iii iv Preface This thesis will be about Schwinger terms. It is terms that appear in equal time commutators of currents in quantum eld theory. As a mathematical physicist I nd it hard to write a thesis about this subject. Both the physical and mathematical aspects should preferably be covered. Ihavedecided to focus on some of the mathematical tools that the Schwinger term and the closely related chiral anomaly have in common. This is part of what I have learned during the years 1994{1999 as a graduate student attheRoyal Institute of Technology. The following conventions and assumptions will be made throughout the thesis: All manifolds are assumed to be second countable and Hausdor . They are assumed to be paracompact whenever a partition of unity argument is needed. In nite-dimensional manifolds are also

  14. Bilmecelerin Dil-Düşünme Bağlamında Eğitimdeki Yeri ve Önemi The Place and Importance of Riddles in the Context of Language and Thinking

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    Elif Emine BALTA

    2013-03-01

    bilmeceler, eski popülerliğini kaybetmiştir. Yaşam koşullarının farklılaşması, sosyal ortamların niteliğini değişmesi, bireyselleşme ve benzer sebepler, insanların ihtiyaçları ve anlayışlarında olduğu gibi ilgi ve zevklerini de değiştirdiği için bu durum normal karşılanabilir.Akademik anlamda, bilmeceler ile ilgili çalışmalar halkbilim sahasında sınırlı kalmıştır. Bu sahada yapılmış olan değerli çalışmalar ise eğitim-öğretim boyutunda yeteri kadar değerlendirilmemiştir. Eğitim öğretim alanında da bilmecelere yeteri kadar yer verilmediği görülmektedir. Oysa bilmeceler, dil ve kavram öğretiminde, bunlarla yakından ilişkili olan düşünme öğretiminde de başarı sağlamada araç olarak kullanılabilecek zenginlik ve derinlik özelliğine sahiptir. Eğitim-öğretim sürecinde, bilmecelerin en önemli katkısı, anadili eğitiminde görülür. Kavram öğretiminde ve kelime hazinesini zenginleştirmede bilmeceler yardımcı araç olarak görülebilir. Bilmecede cevabı arama süreci dinamiktir; birey, zihninden geçen tüm kavramları soruda belirtilen özellikleri ile karşılaştırır. Açık bir ifadeyle bilmeceler üst düzey düşünme becerilerinden olan yaratıcı düşünme, eleştirel düşünme ve problem çözme becerileri ile ilişkilidir. Bilmecelerin eğitsel ve düşünsel bağlamda değerinin farkına varılmalı ve diğer edebi türler gibi eğitim ortamlarına dahil edilmelidir. Bu çalışmada, bilmece türünün eğitim-öğretimde etkili bir araç, zengin bir uyaran olarak yeri ve önemi belirlenmiş ve açıklanmıştır.

  15. THE EFFECT OF 4+1 PLANNED WRITING AND EVALUATION MODEL TO DEVELOP THE ATTITUDES OF PRESERVICE TEACHERS AS TO WRITTEN EXPRESSION AND THEIR WRITING SKILLS 4+1 PLANLI YAZMA VE DEĞERLENDİRME MODELİNİN ÖĞRETMEN ADAYLARININ YAZILI ANLATIM TUTUMLARINI VE YAZMA BECERİLERİNİ GELİŞTİRMEYE ETKİSİ

    Directory of Open Access Journals (Sweden)

    Halit KARATAY

    2011-09-01

    ında yazılı anlatım derslerine yer verilir. Bu derslerde yapılan yazılı anlatım etkinliklerinde genellikle öğrencilere yazma ürünlerinin niteliği ile ilgili yeteri kadar dönüt verilmez ve yazma süreci belli aralıklarla öğretmenler tarafından gözden geçirilerek öğrencilere dönüt verilmediği için doğrusal ilerler. Bu geleneksel yazma eğitimi anlayışında öğrencilerin yazma ürünlerinin şekilsel özellikleri; yazının okunaklığı yazım ve noktalama kurallarının doğru kullanılıp kullanılmadığı önemlidir. Oysa iyi bir yazma ürünü ortaya koymak iyi tasarlanmış, belli aralıklarla izlenerek yönlendirilmiş bir yazma süreci ile elde edilebilir. Sürece dayalı yazma eğitimi çalışmalarında öğretmenler, öğrencilerin yazılı anlatım becerilerini geliştirmek için yazma sürecinin belli aşamalarında yazılarının gelişimleri hakkında onlara dönütler verir. Yazma sürecinin bir aşamasını tamamlamadan diğer aşamaya geçmelerine izin vermez, nerede, neyi, eksik yaptıklarını göstererek yazma süreci hakkında bilişsel farkındalık edinmelerini sağlar. Bu araştırmada, hazırlık, plan, düzenleme, düzeltme ve yayınlama aşamalarını içeren sürece dayalı 4+1 Planlı Yazma ve Değerlendirme Modelinin öğrencilerin yazılı anlatım becerilerini ve yazılı anlatıma karşı tutumlarını geliştirmeye etkisi incelenmiştir. Çalışma ön test-son test kontrol gruplu deneysel modelde desenlenmiştir. Batı Karadeniz’de bulunan iki üniversitenin Türkçe öğretmenliği 1. sınıfları araştırmada örneklem alınmıştır. Sürece dayalı 12 haftalık deneysel uygulama sonunda 4+1 Planlı Yazma ve Değerlendirme Modelinin öğretmen adaylarının hem yazılı anlatım becerilerini hem de yazılı anlatıma karşı tutumlarını anlamlı düzeyde geliştirdiği belirlenmiştir.

  16. Öğrenme-Öğretme Sürecinde Sosyal Medya Kullanımı

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    Fırat SARSAR

    2014-12-01

    Full Text Available Sosyal medya ortamlarından Blogger ve Facebook, kullanım kolaylığı ve ücretsiz olması nedeniyle yaygın şekilde kullanılmaktadır. Söz konusu ağların eğitimi desteklemek amacıyla kullanımı ve bu konudaki araştırmaların giderek arttığı dikkate alındığında söz konusu uygulamalara ilişkin bir örnek durumun incelenmesi ve öğrenen tepkilerinin ortaya çıkartılmaya çalışılması önemli görülmektedir.  Bu doğrultuda uygulaması 14 hafta süren araştırmanın amacı; öğrenenlerin öğretme-öğrenme sürecinde sosyal medya kullanımına ilişkin görüşlerini belirlemektir. Tek desenli durum çalışması niteliğinde olan bu araştırma 2012-2013 eğitim-öğretim yılı güz döneminde Ege Üniversitesi Eğitim Fakültesinde yürütülmekte olan Doktora Formasyon Programı kapsamındaki Gelişim ve Öğrenme dersinde yapılmıştır. Bu dönemde dersi alan ve farklı enstitülerde doktora programlarına kayıtlı 10 erkek ve 8 kadın olmak üzere toplam 18 öğrenci araştırmaya katılmıştır. Araştırmada veriler anket yoluyla çevrimiçi olarak işlemden önce ve sonra olmak üzere iki aşamada toplanmıştır. Dersler sınıf ortamındaki paylaşımların yanı sıra sosyal medya ortamlarındaki etkinliklerle de yürütülmüştür. Verilerin analizinde nitel veriler için; temalar ve kodlar çalışmanın tasarlanmasından itibaren hem alanyazın, hem çalışmanın amaçları hem de elde edilen veriler doğrultusunda oluşturulmuştur. Elde edilen bulgulara göre beklentiler, sosyal ağlar, öğrenme ortamı, duyuşsal özellikler, öğrenen katkısı ve öğretim elemanı özellikleri ana temaları ortaya çıkmıştır. Bulgulara göre öğrenenlerin tamamının dersle ilgili beklentilerinin karşılandığı; ders etkinlikleri için Facebook kullanımının öğrenenlerin tamamı tarafından olumlu olarak değerlendirildiği; Blogger kullanımının ise öğrenenlerin yarısı tarafından olumlu

  17. Gazi Üniversitesi Gazi Eğitim Fakültesi Güzel Sanatlar Eğitimi Bölümü Müzik Eğitimi Anabilim Dalı Keman Öğrencilerinin Aldıkları Keman Eğitiminde Karşılaştıkları Sorunlar ve Sorunları Çözmede İzledikleri Yollar Problems Encountered by Violin Students From Gazi University Faculty of Education Department of Education of Fine Arts Department of Music Education During Violin Education and Methods to be Followed to Solve These Problems

    Directory of Open Access Journals (Sweden)

    Gamze Elif TANINMIŞ

    2013-07-01

    olarak toplanan verilerin niteliği açısından durum saptamaya yönelik betimsel bir çalışmadır. Araştırma için konuyla ilgili kaynaklar taranmış ve Gazi Üniversitesi Gazi Eğitim Fakültesi Güzel Sanatlar Eğitimi Bölümü Müzik Eğitimi Anabilim Dalı’nda 2011-2012 eğitim öğretim yılında lisans öğrenimi gören 87 keman öğrencisine aldıkları keman eğitiminde ne gibi sorunlarla karşılaştıkları ve bu sorunları çözmede izledikleri yolları belirlemek amacıyla anket uygulanmıştır. Anket sonucunda elde edilen veriler tablolar halinde verilerek yorumları yapılmıştır. Veriler ışığında, kemana küçük yaşta başlamamış olmak, günlük bireysel keman çalışmalarına yeterli zaman ayıramamak ve ders saatinin yetersizliği öğrencilerin karşılaştığı en önemli üç sorun olarak görülmektedir. Alıştırma, etüt, eser vb. öğretim materyallerini çalışırken karşılaştıkları en önemli üç sorun ise yay kullanım alanına, yay tekniklerinin kullanımına ve çift ses çalmaya ilişkin sorunlardır. Öğrencilerin büyük bir çoğunluğunun alıştırma, etüt, eser vb. öğretim materyallerini çalışırken karşılaştıkları sorunları çözmede baştan sona çalmak yerine parça parça çalıştıkları, ders öğretim elemanından yardım aldıkları ve yardım aldıkları kişi veya kişilerin 68.96 oranla sorunlarına çözüm buldukları dikkati çekmektedir.

  18. Mustafa Bin Bâlî ve İlm-i Firâset’i Mustafa Bin Bâlî And İlm-i Firâset

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    Ramazan SARIÇİÇEK

    2012-12-01

    alışma niteliğindedir. Yalnızca Fahreddin Razi ve Muhyiddin-i Arabî değil Hamdullah Hamdi’den İbni Sina’ya kadar daha birçok ilim adamının eserlerinden de yararlanılmıştır. Bu yönüyle alanında tektir diyebiliriz. Zira bu alanda yazılan eserler genellikle firâset ilminin uygulaması üzerinedir. Yani bu ilmin temel kıstasları üzerinde durmak yerine sonuçları üzerinde dururlar. Halbuki bu eser bütün olarak firâset üzerine yapılmış derli toplu bir çalışmadır. Diğer eserlerde bilgiler bölük pörçük ve dağınık iken bu eser firâsetle ilgili bilgileri bir akademisyen titizliğiyle derleyip bir araya getirmiştir.Ayrıca eser mensur olmasına rağmen içinde Arapça, Farsça ve Türkçe olmak üzere çeşitli manzumeler de bulunmaktadır. Dil bakımından ise Eski Anadolu Türkçesine ait dil malzemeleri içermektedir.

  19. Konya Kültür ve Tarihi Açısından Anıt Dergisi Anit Journal In Terms Of Culture And History Of Konya

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    Muammer ULUTÜRK

    2013-03-01

    ıkolarak fakat düzensiz aralıklarla yayınlanmış bir arkeoloji, folklor ve tarihdergisidir. Anıt Dergisi; tarih, tarihi coğrafya, vakfiye vesikaları, mimari,ibadethaneler, bibliyografyalar, etnografya, arkeoloji, halkbilim, felsefe,şehir tarihi, Mevlana ve Mesnevi gibi birçok alanı kapsayan yazılarıylaözellikle Konya ve çevresinin tarihine ışık tutması bakımındanincelenmeye değer özelliklere sahiptir. Anıt Dergisi, Mart 1949’dan Mart1964 tarihine kadar düzensiz aralıklarla toplam 31 sayı çıkmıştır. 19.sayısını Temmuz 1950’de çıkaran dergi uzun bir aradan sonra 20.sayısını Nisan 1957’de çıkarabilmiş, Mart 1964’deki son sayısıyla yayınhayatına nokta koymuştur. Dergi, özellikle Konya ve çevresinin kültürelmirasına ciddi katkılar sağlayan yazar ve yazılarla önemli bir boşluğudoldurmuştur. Dernek sadece dergi çıkarmakla kalmamış, tüzüğündebelirtildiği şekilde Konya il merkezindeki taşınmaz maddi kültürvarlıklarımızın onarım işlerini de hayırsever Konyalıların maddi manevidestekleriyle gerçekleştirmiştir. Selimiye ve Kapı Camileri kurşunlarınınelden geçirilmesi, Şems-i Tebrizî, Emir İshak ve Şeyh Aleman türbelerininonarımı, Abdülaziz, Zenburi, Beyhekim ve Tercüman mescitlerininkurtarılması, Sahip Ata manzumesinin cami kısmı çatısı ile avluduvarının onarımı bunlardan birkaçıdır. Günümüz zaviyesindenbakıldığında, tarihsel belge niteliği taşımakta olan derginin içerik vefihristinin, sosyal bilimler sahasında çalışmalar yapanlar için önemlikatkılar sağlayacağına inanıyoruz.

  20. Konuşma ve Ses Eğitimi Arasında Konuşmanın Ezgisi Açısından Akrabalık İlişkisi Kindship of Speaking and Voice Education Through Speaking Melody

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    Kıvanç AYCAN

    2012-09-01

    ılara uygun bir şekilde seslerini kullanabilmeleri için gerekli davranışların kazandırıldığı bir eğitim niteliğindedir. Diğer taraftan konuşma eğitimi ise “diksiyon”, “hitabet”, “retorik” (belâgat gibi sözcüklerle Türkçe diline yerleşmiş bu amaca yönelik öğretilerdir. Kendi dilini doğru bir şekilde konuşmak ve kendini doğru ifade edebilmek, yani doğru bir diksiyona sahip olmak isteyen bir kişi diksiyon sanatının içeriğini oluşturan, artikülasyon, ses-nefes, fonetik, vurgu, tonlama ve ulama gibi önemli maddeleri öğrenmeli ve uygulamalıdır. Bu noktada mesleğini konuşarak yürütmek durumunda olan avukatlar, hatipler, politikacılar ve öğretmenlerin doğru, etkili ve güzel konuşma biçimini öğrenmekle kalmayıp, ses sağlığı ve korunması hakkında da bilgilendirilmeleri gerekmektedir. İnsanların, doğuştan gelen konuşma yeteneklerini düzgün ve doğru bir şekilde kullanabilmeleri için okul hayatlarında alacakları konuşma eğitimi oldukça önemlidir. Eğitim kurumlarındaki konuşma derslerinin genel amacı, öğrencilere duygu, düşünce, gözlem, hayal ve isteklerini dil kurallarına uygun ve etkin bir şekilde ifade etme becerisi kazandırmaktır. Öğrenciler bu noktadan hareketle soluk almaya yarayan organlar, soluk basıncını düzenleyen organlar ile sesin oluşumunu sağlayan organların yapı ve işlevlerini birlikte tanıyıp öğrenmelidirler. Konuşma eğitiminde teorik olarak işlenen bu konular ses eğitimde nefes egzersizi yapılarak uygulama boyutunda ele alınmaktadır. Ses ve konuşma eğitimleri arasındaki temel akrabalık ilişkisi bu noktada konuşma eğitiminin teorik içeriğinin ses eğitiminin uygulama boyutunda özellikle konuşmanın ezgilenmesi temelinde gelişmesidir. Bu makale bu akrabalığı betimsel olarak ele almaya çalışan bir derlemedir.

  1. YAZILI BASINDA ADVERTORIAL: “GAZETECİLER İÇİN ŞEYTANIN TA KENDİSİ”

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    Elif KORAP ÖZEL

    2015-01-01

    Full Text Available ÖZ: Reklamların hedef kitleler üzerindeki etkisinin azaldığına yönelik endişe, halkla ilişkiler uzmanlarını ve reklamcıları yeni arayışlara yöneltmiştir. Bunun sonucunda advertorial olarak adlandırılan haber görünümündeki reklam içerikleri, gazetelerde sıkça kullanılır hale gelmiştir. Advertorialin hedef kitleler üzerindeki etkisiyle ilgili çok sayıda çalışma bulunmasına karşın konu gazetecilik mesleği açısından ele alınmamıştır. Öte yandan advertorialler, reklamdan kesin sınırlarla ayrılması gereken haberin inandırıcılığını tehdit etme potansiyelini taşımaktadır. Bu çalışma, gazetecilerin advertoriallere bakışını ve bunların gazetecilik mesleğine etkisini ortaya koymayı amaçlamıştır. Verilerin elde edilmesinde nitel bir araştırma yöntemi olan derinlemesine görüşme kullanılmıştır. Araştırma kapsamında Mayıs 2014’te Hürriyet, Sabah, Habertürk, Zaman ve Posta gazetelerinde görev yapan 15 gazeteciyle yüz yüze görüşmeler gerçekleştirilmiştir. Araştırma sonucunda advertoriallerin, gazetecilik mesleğine yönelik olumsuz etkilerinin altı kategoride toplandığı tespit edilmiştir. Bunlar; haber ile reklam arasındaki sınırın belirsizliği, gazeteciliğin güvenilirliğinin zedelenmesi, okurun kandırılması, metinlerin haber niteliği taşımaması, gazetecilerin reklam yazarı olarak kullanılması, reklam gelirlerine etkisidir. Anahtar Kelimeler: Advertorial, Haber, Gazetecilik, Halkla İlişkiler, Reklamcılık. ABSTRACT: Concerns about the decreasing impact of advertisements on target audiences have led public relations professionals and advertisers to search for new ideas. As a result, advertisement content in the form of news, called advertorial, has become commonly used in newspapers. Although there have been many studies on the effects of advertorials on target audiences, this issue has not been addressed in terms of the profession of

  2. Isparta Güneyindeki Tersiyer Kaya Birimlerinin Petrol Olanaklarının Araştırılması (GB-Türkiye

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    İbrahim İbrahim ABUBAKAR

    2016-10-01

    Full Text Available Çalışma alanı GB-Türkiye’de Isparta Açısı olarak bilinen bir coğrafik yapının batı bölgesindeki Kışla Köyü ile Yazır Köyü (Isparta – Burdur arasında yer almak­tadır. Sahada otokton ve allokton birimler gözlenir. Kretase – Jura yaşlı, Beydağları kireçtaşları ile Akitaniyen yaşlı Yazır kireçtaşları ve Burdigaliyen yaşlı Ağlasun Formasyonu bölgenin en önemli otokton kaya birimlerini oluşturur. Bunların tümü, yörede Pliyo-Kuvaterner yaşlı Gölcük volkanitleri ve Kuvaterner yaşlı güncel sedimanlar tarafından üzerlenmektedir. Çalışma bölgesinde yer alan allokton bi­rimler, Antalya naplarına ait Isparta Çay Formasyonu ile bunlara eşlik eden ofiyolitik kayalardan oluşur. Yörede Ağlasun Formasyonunun üzerine bindirmeli bir dokanak ile gelen, Eosen yaşlı Isparta Filişi (Kayiköy Formasyonu, çalışma bölgesinin diğer önemli allokton birimini oluşturur.İnceleme alanında yer alan bu birimlerin yayılımları ve birbirleri ile olan dokanak özellikleri incelenerek bölgenin yer altı jeolojik yapısı ortaya çıkarılmıştır. Çalışma alanında geniş yayılım gösteren ve organik maddece zengin özellik sunan Yazır ve Ağlasun Formasyonları bölgenin en önemli petrol anakayası niteliğindeki kaya birimleridir. Diğer taraftan resifal özellikteki Yazır Kireçtaşları içerdiği yaygın gözenekli yapısı ile yörenin en önemli hazne kaya özelliğine sahip birimini oluşturur.Örnekler üzerinde yapılan petrografik incelemeler sonucunda, Yazır kireçtaşlarının daha çok bağlamtaşı ve istiftaşı özelliğine sahip oldukları saptanmıştır. Benzer şekilde, Beydağları kireçtaşları vaketaşı ve çamurtaşı olarak sınıflandırılmıştır. Ağlasun Formasyonu içindeki kumtaşları büyük bölümü ile feldispatik litarenit ve litarenitten oluşmaktadır.Bölgede hazne kaya özelliği gösteren Yazır kireçtaşları ortalama olarak % 10 ile

  3. Yaşamların Özü Olan Mevsimsel Bahâr Zemininde Ulusal Bahâr National Spring In Ground Seasonal Spring Being Essence Of Life

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    Ahmet ADIGÜZEL

    2013-09-01

    ı anlam halesi”ni oluşturan bir milletin manevi bahârını, maddi ve mevsimsel bahâr ekseninde yorumlayacağız.Halide Nusret Zorlutuna’nın Git Bahâr, Ağla Bahâr, Gel Bahâr, Bahâr Geldi şiirleri ayrı birer manzume olmakla beraber bir birinin devamı niteliğinde olan eserlerdir. Şair, Mondros mütarekesiyle başlayan bu makûs kaderi, manzumeleriyle fotoğraf ize etmektedir. Git Bahâr, Ağla Bahâr, Gel Bahâr, Bahâr Geldi dörtlü manzume tedrici olarak esaretten kazanımlara, kurtuluşa uzanan ulusal başarıları anlatmaktadır. Belirtik ve örtük manalarla mücehhez olan bu manzumelerde bahâr mevsimi ile Türk milletinin yaşadığı hadiseler ve atlattığı badireler ifade edilmektedir. Türk tarihinde iz bırakan bu hadiseler, Türk milli şuurunda ve mizacında derunî bir tekevvün oluşturmuştur. Sanatkârın bu dört manzumesine damgasını vuran bu dominant unsurları, imajların zengin doku oluşturduğu güçlü döngüsel kavramlarla terennüm etmektedir. Willemaine’nin ifade ettiği; eserin içinde doğduğu ortam, memleket, medeniyet anlam blokları ile Türk milletinin psikolojisini, şuurunu, Anadolu’daki mücadelesini ve muştusunu dile getirmiştir, sanatkâr, Türk milletinin dili, tercümanı olmaya çabalamıştır. Sanatkâr, toplumsal aidiyet ve bireysel duruşuyla millet vicdanın sesi olma çabası içerisindedir. Vicdanın ve aklın egemen olduğu bu ruh hali, Türk milletinin yaşadığı halet-i ruh iyenin tüm hüviyetiyle izharıdır. Hayatın bir şubesi hatta kendisi olan edebiyat, toplumun sosyal meselelerini ve mefhumlarını şümullü bir idrak, insicamlı ve olgunlaşmış bir zevkle terennüm etmektedir.

  4. Ortaokulda Doğrudan Kazandırılacak Değerlerin Vatandaşlık Ve Demokrasi Eğitimi Kitabına Yansıma Düzeyleri Reflection Levels Of The Values Attained Explicitly In Secondary Schools In The Citizenship And Democracy Textbook

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    Tekin ÇELİKKAYA

    2013-09-01

    programında doğrudan kazandırılacak değerlere hangi ünitede ne kadar sıklıkla ve ne şekilde yer verildiği belirlenmeye çalışılmıştır. Bu araştırmada 2012-2013 eğitim –öğretim yılında 8.sınıflarda Vatandaşlık ve Demokrasi Eğitimi Dersinde kullanılan öğretmen kılavuz kitabı, ders kitabı ve çalışma kitapları incelenmek üzere ele alınmıştır. Öğretim programlarında kazandırılması hedeflenen 19 değerden özsaygı ve diğergamlık değerleri ünite içerisinde doğrusundan kazandırılacak değerler arasında yer almadığından dolayı geriye kalan 17 değer esas alınmıştır. Sonuç olarak, ünitelerin tamamı dikkate alındığında en fazla bahsedilen değer sorumluluk (129 olup bunu sırasıyla, millî, manevi ve evrensel değerlere duyarlı olma (98 ve eşitlik (77 değerleri izlerken; en az ele alınan değerler vatanseverlik (4 olup bunu sırasıyla yardımseverlik (9 ve paylaşma (13 değerleri izlemektedir.

  5. Parlamenter ve Başkanlık Sistemiyle Yönetilen Ülkelerde Gelir Dağılımı Eşitsizliği ve Yoksulluk / Inequality of Income Distribution and Poverty in Countries Governed by Parliamentary and Presidential Systems

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    H. Emre BAĞCE

    2017-02-01

    Full Text Available Bu makalede parlamenter, başkanlık ve yarı başkanlık sistemiyle yönetilen ülkeler gelir dağılımı eşitsizliği ve yoksulluk bakımından incelenmektedir. Bu şekilde, yönetim sistemlerinin avantaj veya dezavantajlarına dair hipotetik tartışmaların aşılması, somut araştırma sonuçları üzerinden yönetim sistemlerinin niteliğine dair daha rafine bilgiye ulaşılması amaçlanmıştır. Çalışmanın ilk kısmında, dünyada hangi ülkelerin parlamenter sistemle, hangilerinin başkanlık ve yarı başkanlık sistemleriyle yönetildiği belirlenmiş ve tasnif edilmiştir. İkinci bölümde, yüz elliden fazla ülkenin gelir dağılımı eşitsizliği – Gini Endeksi (Dünya Bankası tahmini yönetim sistemlerine göre gözden geçirilmiş ve karşılaştırılmıştır. Üçüncü bölümde ise Oxford Yoksulluk ve İnsani Gelişme Girişimi’nin Çok Boyutlu Yoksulluk Endeksi’ndeki yüz bir ülkenin yoksulluk seviyesi rakip siyasi sistemlere bağlılıkları açısından incelenmiştir. Çalışmanın sonuçlarına göre, parlamenter sistemle yönetilen ülkelerde gelir dağılımı eşitsizliğinin daha az olduğu, bu ülkelerin benzer şekilde yoksulluk açısından da daha olumlu durumda olduğu tespit edilmiştir. Başkanlık ve yarı başkanlık ülkelerinin ise bilakis her iki kategoride de olumsuz durumda bulunduğu belirlenmiştir. / In this article, parliamentary, presidential and semi-presidential governments are examined in terms of inequality of income distribution and poverty. In this way, it is aimed that hypothetical discussions about the advantages or disadvantages of political systems can be overcome and more refined knowledge about the nature of political systems can be reached through the concrete results of the analyses. In the first part of the study, it is determined and classified which countries in the world are governed by parliamentary system and which are governed by presidential and semi

  6. MEDYA İŞLETMELERİNDE DENETİMİN FİNANSAL YÖNETİMDEKİ ÖNEMİ - THE IMPORTANCE OF AUDITING FOR FINANCIAL MANAGEMENT IN MEDIA COMPANIES

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    Türkân Uğur DÂİ

    2014-01-01

    Full Text Available ÖzetBu çalışmanın amacı özellikle bağımsız dış denetimin medya işletmelerinde oynadığı rolün önemini araştırmaktır. Medya sektöründeki işletmeler değişik niteliğe sahiptir. Medya yöneticilerinin bu şirketlerin sosyal sorumluluklarını, ekonomik, politik ve toplumsal alanlardaki etkilerini dikkate almaları gerekir. Bağımsız dış denetimin Türkiye’deki medya endüstrisindeki yöneticiler, finansal bilgileri kullananlar, ulusal ve uluslararası yatırımcılar, ortaklar, ulusal ve uluslararası kredi kuruluşları ile müşteriler, devlet ve diğer ilgili gruplar yönünden önemi detaylı şekilde açıklanmıştır. Bir medya holdinginin bağımsız denetimden geçmiş konsolide gelir tablosu ve konsolide bilançosu örnek olarak verilmiştir. Yeni Türk Ticaret Kanunu ve diğer yasal düzenlemelerle uluslararası finansal raporlama standartlarına sağlanan uyum incelenmiştir. Türkiye’deki medya kuruluşlarının iç kontrol sistemleriyle periyodik iç denetim mekanizmalarını geliştirmeye çalışmalarının, hata ve yanlışlıkların önlenmesi kadar etkili bir finansal yönetimin de gerçekleştirilmesine katkı sağlayacağı belirtilmiştir. Aslında etkili bir iç denetim sistemi bağımsız dış denetçilerin, denetim sürecinde uygulayacağı prosedürün derinliğini de belirlemektedir. Çağdaş profesyonel yöneticiler iyi bir finansal performans için bağımsız dış denetçilerin hazırladıkları raporlara önem vererek gerekli değerlendirmeleri yaparlar.AbstractThe aim of this study is to analyze the important role of the independent external auditing for media organizations. The nature of the companies in media sector is different. Their social liabilities and the effects on economic, political, social areas should be taken into account by themanagers. The important role of independent external auditing in Turkish media industry for externalfinancial information users, national and

  7. MEDYA İŞLETMELERİNDE DENETİMİN FİNANSAL YÖNETİMDEKİ ÖNEMİ - THE IMPORTANCE OF AUDITING FOR FINANCIAL MANAGEMENT IN MEDIA COMPANIES

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    Türkân Uğur DÂİ

    2014-03-01

    Full Text Available ÖzetBu çalışmanın amacı özellikle bağımsız dış denetimin medya işletmelerinde oynadığı rolün önemini araştırmaktır. Medya sektöründeki işletmeler değişik niteliğe sahiptir. Medya yöneticilerinin bu şirketlerin sosyal sorumluluklarını, ekonomik, politik ve toplumsal alanlardaki etkilerini dikkate almaları gerekir. Bağımsız dış denetimin Türkiye’deki medya endüstrisindeki yöneticiler, finansal bilgileri kullananlar, ulusal ve uluslararası yatırımcılar, ortaklar, ulusal ve uluslararası kredi kuruluşları ile müşteriler, devlet ve diğer ilgili gruplar yönünden önemi detaylı şekilde açıklanmıştır. Bir medya holdinginin bağımsız denetimden geçmiş konsolide gelir tablosu ve konsolide bilançosu örnek olarak verilmiştir. Yeni Türk Ticaret Kanunu ve diğer yasal düzenlemelerle uluslararası finansal raporlama standartlarına sağlanan uyum incelenmiştir. Türkiye’deki medya kuruluşlarının iç kontrol sistemleriyle periyodik iç denetim mekanizmalarını geliştirmeye çalışmalarının, hata ve yanlışlıkların önlenmesi kadar etkili bir finansal yönetimin de gerçekleştirilmesine katkı sağlayacağı belirtilmiştir. Aslında etkili bir iç denetim sistemi bağımsız dış denetçilerin, denetim sürecinde uygulayacağı prosedürün derinliğini de belirlemektedir. Çağdaş profesyonel yöneticiler iyi bir finansal performans için bağımsız dış denetçilerin hazırladıkları raporlara önem vererek gerekli değerlendirmeleri yaparlar.AbstractThe aim of this study is to analyze the important role of the independent external auditing for media organizations. The nature of the companies in media sector is different. Their social liabilities and the effects on economic, political, social areas should be taken into account by themanagers. The important role of independent external auditing in Turkish media industry for externalfinancial information users, national and

  8. Examination of Services Provided for the Hearing Impaired in Republic of Kosovo: From Diagnosis to Education

    Directory of Open Access Journals (Sweden)

    Murat Doğan

    2016-04-01

    şitme Engelli Çocuklara Yönelik Düzenlemelerin İncelenmesiÖzBağımsızlığını 2008’de tek taraflı ilan etmesinin ardından Kosova Cumhuriyeti diğer tüm alanlarda olduğu gibi eğitim alanında da yeniden yapılanma sürecine girmiştir. Bunun bir yansıması olarak Kosova Cumhuriyeti Eğitim Bakanlığı ile Anadolu Üniversitesi arasında yapılan bir protokol çerçevesinde gerçekleştirilen bu araştırmanın amacı, Kosova’daki işitme engelli çocukların tanı, değerlendirme ve eğitimlerine yönelik düzenlemelerin incelenmesi yoluyla sorun ve gereksinimlerin ortaya konmasıdır. Karma yöntem araştırmalarından eşzamanlı çeşitleme deseniyle ve toplam 92 katılımcıyla yürütülen çalışmada Kosova’daki işitme engelli çocukların ailelerine (n = 34, öğretmenlerine (n = 28 ve sağlık personeline (n = 20 anket uygulanmış, ayrıca bir grup aile (n = 4 ve öğretmenle (n = 6 yarı-yapılandırılmış görüşme gerçekleştirilmiştir. Nicel bir araç olan anket ve nitel bir teknik olan yarı-yapılandırılmış görüşmelerin betimsel analizi iki temel alanda ciddi sorunlara işaret etmiştir: (a tanı, değerlendirme ve müdahale ve (b eğitimsel düzenlemeler. İlk grupta öne çıkan sorunlar işitme kaybının tanılanması, değerlendirilmesi, çocuğun cihazlandırılması, tanı sonrası aileye destek hizmetleri ve okul öncesi eğitim alanlarında belirgin yoksunluk ya da yetersizliklerdir. İkinci gruptaki sorunlar ise ailelerin istediği iletişim yaklaşımı ile okullarda kullanılanın örtüşmemesi, öğretmen sayı ve niteliğinin, eğitim ortamındaki fiziksel düzenlemelerin, öğretim planlanması ve uygulanmasının ve kaynaştırma uygulamalarının ciddi derecede sorgulanabilir olmasıdır. Araştırma, anılan problem alanlarında ciddi yapısal düzenlemelerin acil olarak gerçekleştirilmesi gerektiğini açık biçimde ortaya koymuştur. Anahtar Sözcükler: İşitme engelli çocuklar, Kosova

  9. Expert vs. Novices Dimensions of Tagging Behaviour in an Educational Setting = Bir Akademik Çevrede Uzman ve Deneyimsiz Kullanıcıların Etiketleme Davranışlarının Boyutları

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    Špiranec, Sonja

    2012-04-01

    olarakgörülen folksonomilerin gelişmesiyle değişmeye başlamıştır. Bu çalışmanın amacı etiketleme ve folksonominin etkisini araştırmaktır. Etiketlemenin esnek yapısı, kullanıcılara kendi dermelerindeki bilgi kaynaklarını faydalı buldukları yöntemlerle sınıflandırmalarına olanak sağlamaktadır. Buna rağmen farklı kişiselleştirilmiş kavramlar, arama yaparken ve görüntülerken bazı zorluklara nedenolabilmektedir. Etiketlemenin etkililiğini belirleyebilmek için, etiketlemenin doğası ve özel kullanıcı gruplarının etiketleme davranışı hakkında araştırma yapmak gereklidir. Bu araştırma, uzman ve deneyimsiz kullanıcılar arasındaki farkı belirlemeyi amaçlayan bir çalışmadan elde edilen bulguları sunmakta, ilgili alana katkı sağlamaktadır. Araştırma aynı zamanda, etiketleme veya indeksleme hakkında bilgisi olmayan ve “deneyimsiz kullanıcılar” olarak tanımlanan Üniversite 1. sınıf öğrencilerine sosyal işaretleme hizmeti sunan Delicious’da yer alan bir makale verilerek gerçekleştirilmiştir. Her öğrenciden, makalenin sadece başlık, alt başlık ve özünü bilerek onu etiketlemesi ve sonra makalenin tümünü okuyarak bir kez daha aynı işi yapması beklenmiştir. Aynı süreç Bilgi Bilim Bölümünde etiketleme ve indeksleme konusunda yeterli deneyim ve bilgiye sahip olan lisansüstü öğrencilerle tekrarlanmıştır. Deneyimli, orta düzeydeki ve deneyimsiz kullanıcıların etiketleme davranışları arasındaki farklılıklar ve benzerlikler bu yolla analiz edilmiş ve karşılaştırılmıştır. Araştırma, etiket numaraları ve etiket dağılımlarındaki farklılıkları ortaya koymaktadır. Uzman grubun etiketleme davranışlarında daha kesin ve daha tutarlı bulgulara rastlanmış, ayrıca uzun dönemde etiketleme eğitiminin folksonomilerin niteliğini artıracağı sonucu elde edilmiştir.

  10. Öğretmenlerde A Tipi Kişilik, Stres Kaynakları, Öz Yeterlik ve İş Doyumu Type A Personality, Stress Resources, Self Efficacy And Job Satisfaction Among Teachers

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    Hikmet YAZICI

    2013-09-01

    Full Text Available Job satisfaction that is defined as work-related well-being of a person, is a form of assessment on job or the state of one’s job, positively or negatively. Job satisfaction is affected stressful life events such as work load and role conflict, and some psychological variables such as self-efficacy and personality. Also, job satisfaction is related to the kind and nature of the profession. There are some researches examining the teachers' job satisfaction depending on the different variables. The main aim of this study is to examine the relationships between teachers' job satisfaction and Type-A personality traits, stress resources, self-efficacy beliefs. In this study, the relationships between teachers' job satisfaction and age, gender, marital status, kind of working institution and administration experience also are investigated. The research was carried out in the academic year 2012-2013, with the participation 689 teachers (Female = 346, Male = 343 working in private and public educational institutions in Trabzon. The Personal Information Form, Type A Personality Scale, Job Satisfaction Scale, Stress Sources Scale, General Self-Efficacy Scale were used as data collection tools. According to the findings of the study, Type A personality traits, stress sources and self-efficacy beliefs predicted job satisfaction of teachers significantly. In addition, findings showed that age, kind of working institution were significant predictors of the job satisfaction. The obtained results were discussed in accordance with the findings of the literature and were made recommendations. İşe bağlı iyi olma halini ifade eden iş doyumu, bireyin işe ya da iş durumuna ilişkin olumlu ya da olumsuz değerlendirme biçimidir. İş doyumu, iş yoğunluğu, rol çatışmaları gibi stres yapıcı yaşam olayları ile kişilik ve öz-yeterlik gibi psikolojik değişkenlerden etkilenir. İş doyumu aynı zamanda sürdürülen işin türü ve niteliği ile ili

  11. Ali Emirî'nin Osmanlı Tarih ve Edebiyat Mecmuası Ali Emiri's Ottoman History And Literature Periodicals

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    Seher ERDOĞAN ÇELTİK

    2013-03-01

    î Efendi'nin de "Osmanlı Tarih ve Edebiyat Mecmuası" ile "Tarih ve Edebiyat Mecmuası" adında birbirinin devamı niteliğinde olan iki dergisi vardır. Dergilerden Osmanlı Tarih ve Edebiyat Mecmuası 31, Tarih ve Edebiyat Mecmuası 5 sayı olmak üzere toplam 36 sayı olarak yayınlanır. Yayınlandığı dönemde dergiler etrafında oluşan edebî atmosfer gençleri edebî faaliyetlerinde teşvik edici bir misyon üstlenmiştir.Bu çalışmada Ali Emirî Efendi'nin Osmanlı Tarih ve Edebiyat Mecmuası ile Tarih ve Edebiyat Mecmuası adlı dergileri kısaca tanıtılmış; bu dergilerin tarih, edebiyat ve kültür hayatımıza yaptığı katkılara yer verilmiştir.Ali Emirî Efendi, "Osmanlı Tarih ve Edebiyat Mecmuası" ile "Tarih ve Edebiyat Mecmuası"nı öncelikle vatan ve milletine faydalı olmak gayesi ile çıkarır. Daha sonra Osmanlı tarih ve edebiyatına ışık tutacak bilgileri ortaya çıkarmayı ve bilgi-belge yanlışlıklarını düzeltmeyi hedefler. Yazar dergi vasıtasıyla kendi aleyhinde çıkan yazılara da cevap vermek istemiş, başta Mehmet Fuat Köprülü olmak üzere pek çok kişi ve kuruma yönelik tenkitlerde bulunmuştur.Divanu Lügati't-Türk'ü Türk dünyasına kazandıran Ali Emirî Efendi, görevi gereği çeşitli yerlere seyahatlerde bulunmuş ve buralarda sürekli bilgi ve belge toplamıştır. Bu bilgileri, zaman zaman dergi vasıtasıyla okuyucuya sunmuştur.

  12. John Brown as an Independent Character from Warburton Circle / Warburton Camiası’ndan Bağımsız Bir Karakter Olarak John Brown

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    Pervin Yigit

    2017-09-01

    ve onun akımını takip edenler (Warburton camiası Büyük Britanya’yı hoşgörüsüzlük, batıl inanç, dini  fanatizm ve dinsel uzlaşmazlığın etkilerinden korumayı ve Anglikan düzeni korumayı amaçlarlar. Warburton camiası’nın sadık bir üyesi olan Brown, sonradan bu camiadan ayrılmış olsa da Warburton’u takip eden diğer bireyler gibi dönemin İngilteresi için reform stratejileri önermiştir. Bu çalışmada, Brown’un Warburton’dan daha farklı bir reform program sunduğu gösterilmiştir. İddiam şudur ki, Brown’un esas çalışması olan “Dönemin İlke ve Davranışlarına Dair bir Tahmin- An Estimate of the Manners and Principles of The Times (1757 adlı eseri Warburton’un ve onun camiasının düşüncelerini ve reform programlarını çürütme niteliğinde bir yazı olarak okunabilir. Bu yüzden Brown bağımsız bir siyasi reformist olarak değerlendirilmelidir.

  13. Amaç ve Beklenti Karşısında Karşılaştırmalı Edebiyatın Tanı(MSal Krizine İlişkin Birtakım Tartışmalı Saptamalar Some Argumentative Determinations Regarding Diagnostic/Definitional Crisis Of Comparative Literature In Terms Of Accordance With Its Purpose And Expectation

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    Abdulhakim TUĞLUK

    2013-09-01

    Full Text Available Comparison which possesses the characteristics of critic in linewith its purposes and ambitions keeps on its actuality and differenceperception because of its argumentative position within the science ofliterature. “Comparative Literature Science” which has become effectivein literature argumentations in recent years in Turkey has not beenable to make its identity and conceptual entity acceptable, yet. Not onlythe uncertainties in the definition, but also some problems in practicekeep the questions against comparative literature in a certain level.There are also some uncertainties whether it is a method or a science initself as well as the acceptability of it by national men of literature.Comparison, which is seen as easy to do at first in terms of feasibility,shows itself as a complex process when the literal and aestheticmissions attributed by the concept to it are taken into consideration.This complexity becomes a crisis in which there are many questionswhen it is faced with diagnostic and definitive problems. On the otherhand, West-centered perception of the comparative literature and itsinternational face embracing the concept of „world literature‟(Weltliteratur make global scale expectations committed by the conceptmore argumentative rather than meeting these expectations. In thisstudy, the main starting point is gaining a certain point of view to theidentity confusion of comparative literature and establishing a generalargumentation basis. The purpose of this study is revealing somecomplex points in theory and practice considering existential problemsof comparative literature and bringing some expansion to somehandicaps regarding essence of the comparative literature. Amaç ve hedefleri doğrultusunda bir eleştiri türü niteliği taşıyan karşılaştırma, edebiyat bilimi içerisindeki tartışmalı konumu nedeniyle güncelliğini ve farklılık algısını sürdürmektedir. Türkiye‟de, son yıllarda, edebi tart

  14. Emsâl ü Nesâyih-i Türkî ve Dil Özellikleri Üzerine The Emsâl ü Nesâyih-i Türkî and Its Language Properties

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    Talip DOĞAN

    2013-09-01

    ıca, güçlü bir anlatıma ve kavram zenginliğine sahip olmaları yönüyle öne çıkan dil unsurlarındandır. Yerinde kullanıldığı zaman düşünceye büyük bir zenginlik katan atasözlerinde, dilin bütün imkânlarından istifade edildiği göze çarpmaktadır. Sözlü kültür ortamının ürünlerinden olan atasözleri, hayata dair her türlü hadiseyi, durumu birçok yönüyle ve renkliliğiyle aksettirir. Bundan dolayı atasözlerinde Türk milletinin ahlâk anlayışı, ortak değerleri, dini, zekâ parıltıları ve hayal gücü yer alır. Türk atasözleri, coğrafya, lehçe gibi farklılıkların ötesinde Türklüğün karakterini göstermekle birlikte aynı zamanda bir tarihî belge niteliğindedir. Türkçede atasözü, tarih boyunca sav, mesel ve darbımesel gibi kelimelerle karşılanmıştır. Bugün Azerbaycan Türklerinde atasözü yerine atalar sözü, ata baba sözleri, emsâl, emsâl-i Türkân gibi terimler kullanılmaktadır.Emåāl ü Neṣāyiḥ-i Türkì, Mìrzā ‘Elineḳì Merāġì tarafından İran Azerbaycanı’nın Meraga şehrinde 20. yüzyılın başlarında yazılmıştır. Müellif yazması olan eser, Talîk-Divanî kırması yazı ile yazılmıştır. Emåāl ü Neṣāyiḥ-i Türkì, otuz üç sayfadan ibaret olan atasözlerini ihtiva etmektedir. Atasözleri eserde, ağız özellikleri korunarak kaydedilmiş olup Arap alfabesinin harf sırasına göre dizilmiştir.Bu çalışmada, Emåāl ü Neṣāyiḥ-i Türkì’de yer alan atasözlerinin yazım, ses ve şekil özellikleri üzerinde durulmuştur. Dil özellikleri aynı zamanda tarihî lehçeler ve Oğuz grubu ağızlarıyla mukayese edilmiştir.

  15. TARIHI TÜRK BAHÇELERINDE HAVUZ YAPILARI

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    Hilal Turgut

    2012-09-01

    Full Text Available Hızla değişen ve kalıcı olmayan bahçe tasarımları göçebe hayattan yerleşik hayata geçen Türk toplumunun değişim süreci için önemli ipuçları verebilirdi. Ancak değerlendirme yapılabilecek bahçe örnekleri çok az bulunmakta ve olanların da değişime uğrayıp uğramadıkları net olarak bilinmemektedir. Bu çalışmada; farklı sanat akımları ile tanışmış olan, çoğunun varlığını ancak kitaplardan bildiğimiz tarihi Türk Bahçelerinin havuz detaylarının incelenerek Türk bahçe kültürü hakkında bilgi edinilmesi amaçlanmıştır. Çalışmada, ağırlıklı olarak son tanık olan Sedad Hakkı Eldem’in kaynakları Türk dünyasının önemli sanat kollarından olan tarihi belge niteliği taşıyan minyatürler, gezgin notları, çeşitli rehber nitelikli kaynaklar incelenmiştir. Çalışmada minyatürlerin tercih edilme sebebi, minyatürlerin ince ayrıntıların gösterildiği resimler olmasının yanı sıra Türk resminden önce minyatür sanat örneklerinin var olması ve arşiv niteliğinde çalışmalar olarak değerlendirilebilmesidir. Minyatürde görünümden çok fikir ve gerçeklik ön plandadır. Çalışmanın sonucunda bundan sonra yapılacak Türk Bahçesi çalışmaları için daha detaylı bir bakış açısı ortaya konulması umut edilmektedir. The Pool Structures in Historical Turkish Gardens The fast changes and non-permanent designs in Historical Turkish gardening could have given us important hints about the process of how nomadic Turkish people transformed into the settled life. But there are few samples of these designs to know if they underwent any changes. This study aims at giving information about the pool structures in the historical Turkish gardens, which are closely related to the Turkish culture. In doing so, the study examines the works of Sedad Hakki Eldem, together with miniatures, travel notes and various guiding notes. The reason why miniatures are chosen is

  16. Doktor Abdullah Cevdet’in Samsun, Giresun, Ordu ve Trabzon Seyahat Notları Doctor Abdullah Cevdet’s travel notes of Samsun, Ordu, Giresun and Trabzon

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    Ersin MÜEZZİNOĞLU

    2012-09-01

    commanders. This study aims to narrate and introduce the travel notes of Dr. Abdullah Cevdet, who has an important place in local and city history and describes the cities extensively, to our present language and make a general evaluation of the given information and observation. Tarih araştırmalarında seyahat yazıları birinci el kaynaklar olarak vazgeçilmez bir niteliğe sahiptirler. Özellikle insan, yaşam ve çevreye dair verilen bilgilerin çıplak gözle yansıtılması bu tür kaynakları daha önemli hale getirir. Bu çerçevede son devrin önemli fikir ve siyaset adamlarından biri olan Doktor Abdullah Cevdet 28 Eylül 1912’de Samsun, Giresun, Ordu ve Trabzon şehirlerini kapsayan bir inceleme seyahati gerçekleştirmiştir. Sahibi ve yazarı bulunduğu İçtihat dergisinin 67, 69 ve 70. sayılarında yayınlanan bu seyahat notlarında, bulunduğu şehirlerin iktisadi, coğrafi, toplumsal, sağlık, kültürel, yerel yönetim durumları hakkında gördüklerini, edindiği bilgileri ve düşüncelerini anlatmıştır. Karşılaştığı, iktisadi gelişmenin eksikliği (ekonomik kaynaklarının değerlendirilememesi veya verimli kullanılamaması gibi kötü sağlık şartları, yerel yönetici ve memurların olumsuz davranışları ve çalışma disiplinine sahip olmayışları, devlete ait binaların perişanlığı, Müslüman olmayanların Müslümanlara göre daha iyi şartlarda yaşamaları gibi olumsuz durumlardan dolayı hoşnutsuzluğunu göstermiş ve tenkitlerini sıralamıştır. Diğer taraftan gördüğü iyilik, güzellik, çalışkanlık, iktisadi kalkınma onu memnun etmiş, bunlara dair örnekler sunmuştur. Ayrıca O, Müslümanların daha iyi şartlara sahip kılınmaları ve kalkınmaları için neler yapılması gerektiği noktasında tavsiyelerde bulunmuştur. Gezi notlarında gayrimüslimlerin Müslümanlara göre iyi imkânlara sahip oldukları üzerinde de durulmuştur. Samsun bahsinde gerek gözlemler sonucu gerekse tapu kay

  17. Qualities of Ideal Teacher Educators

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    Nihal Tunca

    2015-04-01

    principles and social responsibilities’. Keywords: Ideal teacher educator, teacher candidates, qualities of teacherÖz Dünyada öğretmen eğitimcilerinin niteliği ile öğretmen yetiştirmenin kalitesi arasındaki ilişki yeterli düzeyde tartışılmamaktadır. Bununla birlikte, Batı alan yazınında eğitim fakültelerindeki öğretim üyelerinin özelliklerini inceleyen çeşitli araştırmalara rastlanmaktadır. Öğretmen eğitimcilerinin öğretmen adayları üzerindeki etkilerinin bilinmediği Türkiye’de ise eğitim fakültelerindeki öğretim elemanlarıyla ilgili sınırlı sayıda araştırma bulunmaktadır. Çoğu nicel araştırma yaklaşımıyla desenlenen bu çalışmalarda, öğretmen eğitimcilerinin bazı özellikleri açısından değerlendirildikleri dikkat çekmektedir. Öğretmen eğitimcilerinin, bir bütün olarak hangi özelliklere sahip olmaları gerektiği ise araştırma konusu olmamıştır. Oysa sahip olması gereken özellikler açısından sürekli tartışma konusu olan öğretmenler kadar öğretmen eğitimcileri de araştırma konusu olmalıdır. Bu gerekçeden hareketle araştırmada, geleceğin öğretmenleri olan eğitim fakültesi öğrencilerinin bakış açısıyla ideal bir öğretim üyesinin sahip olması gereken niteliklerin belirlenmesi amaçlanmıştır. Araştırma, olgu bilim (fenomonoloji deseninde nitel bir araştırmadır. Araştırmanın katılımcılarını,  Fen ve Teknoloji Öğretmenliği, Okulöncesi Öğretmenliği, Sınıf Öğretmenliği, Sosyal Bilgiler Öğretmenliği ve Türkçe Öğretmenliği programlarında, üçüncü ve dördüncü sınıflarda öğrenim gören toplam 214 öğretmen adayı oluşturmaktadır. Araştırma verileri, yapılandırılmış görüşme tekniklerinden açık uçlu anket ile (29 Nisan-18 Mayıs 2013 toplanmıştır. Araştırmada elde edilen veriler, NVivo8.0. Paket Programı kullanılarak içerik analizi yaklaşımına göre analiz edilmiştir. Araştırmada

  18. Akdeniz Üniversitesi’nde taşeron sağlık işçilerinin işçi sağlığı ve iş güvenliği durum tespiti

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    Mustafa Cumhur İzgi

    2012-12-01

    Full Text Available

    Amaç: Neoliberal politikaların Türkiye’deki yansımalarından biri olan Sağlıkta Dönüşüm Projesi taşeronlaşmayı içeren bir programdır. Sağlıkta taşeronlaşma, çalışanın sağlığını ve ürettiği hizmetin niteliği nedeniyle toplum sağlığını etkilemektedir. Çalışmanın amacı, bir üniversite hastanesinde taşeronlaşma sonrası çalışanların işçi sağlığı ve iş güvenliği açısından durumlarını değerlendirmek, konuya yönelik farkındalık yaratmak ve geniş çaplı çalışmaların planlanıp gerekli önlemlerin alınmasına katkı sağlamaktır. Yöntem: Akdeniz Üniversitesi Hastanesi’nde taşeron olarak çalışan 1175 işçiden, meslek grupları temel alınarak tanımlayıcı araştırmanın 153 kişilik örneği belirlenmiş ve araştırmaya katılmayı kabul eden 128 çalışana iki bölümden oluşan anket uygulanmıştır. Anketin ilk bölümünde sosyodemografik veriler ve araştırmaya ilişkin açık uçlu sorular, ikinci bölümünde ise beşli Likert tipi soru kökleri yer almaktadır. Bulgular: Katılımcıların %62.5’i iş öncesi sağlık risk eğitimi almadığını, %82.8’i riskler konusunda işveren tarafından bilgilendirilmediğini, %85.2’si aşı yapılmadığını, %57.0’si koruyucu donanımın yetersiz olduğunu, %73.4’ü yaptıkları işin sağlık riski yarattığını, %71.1’i taşeron çalışmanın sağlığı olumsuz etkilediğini, %94.6’sı kadrolu çalışmanın güvenceli olduğunu belirtmişlerdir. Sonuç: Çalışma ortamının sağlık risklerinden arındırılması, iş güvencesinin sağlanması ve sağlık hizmet üretiminde insan haklarının yaşama geçirilmesi için taşeronlaşmaya son verilmesi gerekir.

    Anahtar Kelimeler: Taşeronlaşma, sağlık hakkı, işçi sağlığı, iş güvenliği

  19. Ortaöğretim Öğrencilerinin Savaş Ve Barış Kavramı İle İlgili Düşüncelerinin Çeşitli Değişkenler Açısından Değerlendirilmesi An Evaluation Of The Views Of Secondary Education Students Over The A Of War And Peace In Terms Of Different Variables

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    Özgür AKTAŞ

    2013-09-01

    ılının birinci döneminde Ankara ilinin Altındağ, Çankaya, Mamak ve Yenimahalle ilçelerinde bulunan liselerde uygulama yapılmıştır. Araştırma tarama yöntemine dayanmaktadır. Çalışma 3026 ortaöğretim öğrencisiyle gerçekleştirilmiştir. Ortaöğretim öğrencilerinin savaş ve barış konuları ile ilgili tutumları tespit edilmeye çalışılmıştır. Savaş ve barış tutum ölçeği 40 maddeden oluşmaktadır. Elde edilen veriler SPSS 15,0 paket programıyla değerlendirilmiştir. Araştırma sonuçları değerlendirildiğinde öğrencileri cinsiyet, savaş oyunu oynayıp oynamama ve bilgisayar oyunu oynayıp oynamama değişkenlerine göre farklıkları olduğu gözlenmiştir. Öğrenciler arasında en az farklılığın ise baba eğitim düzeyi ve sınıf düzeyi arasında olduğu görülmüştür.Ortaöğretim öğrencileri insanın savaşçılık özelliği ile doğduğu şeklindeki önermeye kararsız kalmıştır. Öğrenciler savaşların Tanrının takdiri olduğu görüşüneyse katılmamıştır. Ortaöğretim öğrencileri savaşların masum insanlara acı getirdiği ve savaşların başka savaşlara yol açtığı görüşünde olmuştur. Öğrencilere göre savaşı kazanan da savaşı kaybeden de savaşsın sonuçlarından acı çekmektedir. Ortaöğretim öğrencileri en büyük başarıların savaş meydanlarında kazanıldığı fikrine kararsız bir tutum sergilemiştir. Yine öğrenciler vatanseverlik gibi yüce duyguların savaş meydanlarında doğduğu fikrinde de kararsızdır. Buna karşı öğrenciler savaş kazanmak kadar barış kazanmanın da önemli olduğunu belirtmiştir. Öğrencilere göre barışa katkı sağlayan insanlar da kahraman ilan edilmelidir.Türkiye’de savaş ve barış kavramının hangi yaşlarda anlaşılabildiğine dair araştırmalar yapılmamıştır. Bu alanda araştırmalar alana katkı sağlayacaktır. Ayrıca savaşların niteliğine göre ayrılarak da araştırma yapılmasının önemli olduğu düşünülmektedir.

  20. 美国网络高等教育“极化”现象解读--基于斯隆联盟2013年度报告的分析%Polarization Phenomenon of Online Higher Education in the United States

    Institute of Scientific and Technical Information of China (English)

    张超

    2014-01-01

    2014年1月,斯隆联盟发布2013年度美国网络高等教育调研报告。该报告分为网络高等教育和MOOCs两部分。通过分析,笔者发现,美国网络高等教育呈现“一热一冷”的“极化”现象。2013年三分之一的美国在校生选择了网络教育课程,为历年最高,且网络教育的覆盖率与学校规模呈正相关。通过梳理斯隆联盟发布的2003至2013年度美国网络高等教育调研报告发现,11年间美国网络高等教育的“热”趋势表现在发展规模持续扩大、战略地位上升、教学质量不断提升。这主要得益于美国完善的教育制度保障和教学认证评估机制,也得益于政府、高校、企业间良性的合作。与之形成对比的是,近两年MOOCs在美国高校遇冷,主要原因在于MOOCs不符合美国高等教育的发展目标,且缺少可持续发展的运作模式。对中国而言,MOOCs的初期发展需要政府支持,长远看需要选择恰当的运作模式。否则,MOOCs会沦为一个教育概念而非良性的教学实践。%In January of 2014, the Sloan Consortium released 2013's annual research report titled, Grade Change:Tracking Online Education in the United States. This is the 11th research report from the Sloan Consortium on online higher education. The report sets a new record of sampling, with a total of 2,831 college and universities participating in the study ( compared to 994 in 2003 ) , accounting for 59 . 9% of the total institutions of higher education in the U-nited States, and reflects the importance of this Consortium. The report consists of two parts:online higher education and MOOCs. It reveals two contrary trends in America's online higher education. The survey shows that one-third of American students choose online education courses in 2013, reaching the highest level in 11 years. The report also shows a positive correlation between the increases in on-line students and the size of the university. 82. 5% of

  1. The Mikea Forest Under Threat (southwest Madagascar : How public policy leads to conflicting territories

    Directory of Open Access Journals (Sweden)

    Chantal Blanc-Pamard

    2009-10-01

    é à plusieurs facteurs : pression démographique due à l’immigration, saturation des terres les plus fertiles, assouplissement de la réglementation de l’état sur le défrichement des forêts, et surtout rôle de la culture du maïs associé à l’essor des exportations. La fièvre du maïs entraîne une destruction irréversible de la forêt sèche car le processus de déforestation est suivi d’un processus de savanisation. Le défrichage est une stratégie qui permet de contrôler les ressources et le développement d’un territoire. Ce n’est qu’à la fin des années 1990 que des politiques environnementales ont été mises en œuvre pour réduire le recul de la forêt et préserver la flore et la faune endémiques d’un si grand territoire. La création du parc national Mikea est en cours mais le processus a été ralenti par un projet de mine d’ilménite qui menace une nouvelle fois la forêt. De plus, depuis 2008, une licence de prospection de pétrole dans la région a été accordée. Trois projets contradictoires d’utilisation des terres financés par le gouvernement déstabilisent les populations locales qui ont été encouragées par l’état à préserver la forêt.Con 10 millones de hectáreas, el bosque cubría sólo en 2005 el 16% del territorio de Madagascar. La deforestación está alcanzando proporciones alarmantes y se reconoce como un importante problema ambiental. Este proceso se ha acelerado recientemente, especialmente en el suroeste del país. El principal factor que promueve la deforestación es el cultivo de maíz de tala y quema. La agricultura pionera se está desarrollando rápidamente a costa del bosque. La pérdida de bosque está ligada a varios factores: presión demográfica causada por la inmigración, saturación de las tierras más fértiles, la relajación de las regulaciones estatales en materia de tala de bosques, y sobre todo el papel del cultivo de maíz asociado a un mercado de exportación en auge. La

  2. Strengthening Social Inclusion in Multicultural Societies Through Information Literacy=Çok Kültürlü Toplumlarda Bilgi Okuryazarlığı Aracılığıyla Sosyal Bütünleşmenin Artırılması

    Directory of Open Access Journals (Sweden)

    Esin Sultan Oğuz

    2013-12-01

    needs of foreign residents in Turkey and the level of fulfillment of their information needs will be presented. The findings of the research will also be used to make suggestions for developing information literacy programs which address the specific information needs of culturally and linguistically diverse communities./İçinde yaşadığımız toplum giderek çeşitlenmektedir. Uluslararası göç hareketleri birçok ülkede kültürel çeşitliliği artırmaktadır. Kültürel ve dilsel çeşitliğe sahip toplumlarda bilgi kaynaklarının ve hizmetlerinin sağlanmasında her türden kütüphane adres gösterilmektedir. Uluslararası Kütüphane Dernekleri ve Kuruluşları Federasyonu (IFLA tarafından yayımlanan Çok Kültürlü Kütüphane Bildirisi’ne göre toplumda her bireyin kütüphane ve bilgi hizmetlerine tam ve eksiksiz erişme hakkı vardır. Dezavantajlı gruplar olarak adlandırılan azınlıklar, göçmenler gibi kültürel ve dilsel çeşitliliğe sahip topluluklara bilgi hizmetlerinin sağlanmasında özel önem gösterilmelidir. Halk kütüphaneleri bilginin demokratikleşmesinde sosyal aracı niteliğindeki önemli kurumlar arasındadır. Göçmenlerin sosyal ve kültürel bütünleşme sürecinde sosyal değişimin sağlanacağı yegâne kuruluşlar halk kütüphaneleridir. Ev sahibi ülkenin değerlerinin kavranması, vatandaşlık bilincinin kazandırılması ve yeni bir kültüre uyumun sağlanması aşamasında göçmenleri yeni hayatlarına hazırlarlar. Kütüphaneler kullanıcıların bilgiye erişmesini sağlamanın ötesinde onların toplumsal katılımını artırmak amacıyla bilgi ve becerilerini geliştirecek alanlar yaratırlar. Örgün ve yaygın eğitimde, gündelik yaşamda yaşam boyu öğrenmenmenin kilit noktası olan bilgi okuryazarlığı becerileri göçmenler ve yabancılar tarafından göç ettikleri ülkeye uyum sağlayabilmeleri ve bu uyumu sürdürebilmeleri için geliştirmeleri gereken temel beceriler aras

  3. Annan Planı Referandumu Sürecinde Rauf Denktaş’ın Ötekileştirilmesi: Yeni Düzen Gazetesi Örneği

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    Ümmü Bayraktar

    2016-10-01

    Full Text Available Annan Planı Referandumu Sürecinde Rauf Denktaş’ın Ötekileştirilmesi: Yeni Düzen Gazetesi ÖrneğiDr. Ümmü Altan Bayraktar[1]Özet24 Nisan 2004’te gerçekleştirilen Annan Planı Referendumu, Kıbrıs’ın siyasal yapısında ve Kıbrıs sorununun çözümüne ilişkin atılan adımlar üzerinde etkisi halen süren önemli izdüşümler oluşturmuştur. Bu süreçte, Kuzey Kıbrıs Türk Cumhuriyeti (K.K.T.C, Güney Kıbrıs Rum Yönetimi (GKRY, Türkiye ve Yunanistan’da farklı siyasi anlayışların iktidara gelmesi, Kıbrıs sorunu ile ilgili gelişmelerin seyrini de etkilemiş, K.K.T.C ve Türkiye’de bir iç politika anlaşmazlığı niteliği kazanmıştır. Türkiye’de AK Parti iktidarı, K.K.T.C’de Cumhuriyetçi Türk Partisi (CTP ve Demokrat Parti koalisyonu, Türk tarafının Kıbrıs politikasını şekillendiren belirleyici etken olmuştur. Türkiye’deki iktidar ve uluslararası konjöktürün dinamiklerine göre değişiklik gösteren Rauf Denktaş ve Ankara ilişkileri, AK Parti dönemine kadar çoğu zaman Ankara’nın tam desteğiyle ilerlemiş; Kıbrıs meselesi, Türkiye dış politikasında ‘milli dava’ olarak ele alınmıştır. Kıbrıs siyasetinin milli dava ekseninden kaydığı iddia edilen dönemde Kuzey Kıbrıs’ta statükoyu temsil eden ve kendi ifadesiyle ‘çözümsüzlük çözümdür’ siyasetiyle; Kıbrıs’ta Türk milliyetçiliğinin sözcülüğünü yapan Rauf Denktaş, muhalif kesim için ‘öteki’ olmuş, referandum sürecinde plana hayır diyen tarafta olması nedeniyle, evet diyen taraflarca dışlanmış ve geçmişten beri uzlaşmayı reddeden taraf olduğu gerekçesiyle de sürekli eleştirilmiştir. Araştırma konusunun odaklandığı dönemde siyasi iktidarın büyük ortağı CTP’nin yayın organı ve yüksek tirajlı gazetelerden biri olması, çözümden yana, statükoya muhalif sol basını temsil etmesi nedeniyle seçilen Yeni Düzen gazetesi’nde referandum

  4. Bir Mecmû’a Ekseninde Bazı Tespît ve Değerlendirmeler Some Determinations And Evaluations In The Context Of A Mecmû’a

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    Timuçin AYKANAT

    2013-03-01

    şılanmaktadır. Bu anlamdan hareketle; bir şekilde birbiriyle ilintili olan manzûm, mensûr veya manzûm-mensûr karışık sözleri içeren risâle ya da daha hacimli ürünlere de mecmû’a denilmektedir. Mecmû’alar, içeriklerine ve oluşturulma biçimlerine göre farklı adlarla anılırlar. Söz gelimi, hadîslerden oluşan bir mecmû’a “mecmû’atü’l-ehâdis” ya da tıpla ilgili bir mecmû’a “mecmû’a-yı tıb” biçiminde adlandırılırken, doğrudan bir kişiye ya da farklı birkaç kişiye âit şiirleri içeren mecmû’alar, “mecmû’a-yı eş’âr” şeklinde isimlendirilir. Süreç içerisinde te’lîf bir edebî ürün görünümü kazanan mecmû’alar, klâsik Türk edebiyatı bağlamında; temel olarak, belli nazım şekillerine âit şiirleri içerenler (mecmû’a-yı gazeliyyât gibi, birden çok şâirin dîvânını barındıranlar (mecmû’atü’t-devâvîn, birbirine cevâp niteliği taşıyan şiirlere yer verenler (mecmû’atü’n-nezâ’ir ve derleyicisinin adı ile anılanlar (Pervâne Bey Mecmû’ası gibi biçiminde tasnîf olunabilir. Edebiyat söz konusu olduğunda mecmû’alar, araştırmacıya birçok yönden kolaylık sağlayabildiği gibi onu birtakım yanlışlara da sürükleyebilir. Bu bakımdan hemen her materyalde olduğu gibi mecmû’alara da imtinâ ile yaklaşılmalıdır. Bu makale ile metinler üzerinden yapılacak tespit ve değerlendirmelerin daha sağlıklı sonuçlar sunacağı düşüncesinden hareketle; Millî Kütüphâne Yazmalar Katoloğu’nda 06 Hk 4041 arşiv numarası ve Mecmû’a-yı Eş’âr isimlendirmesiyle Şeyh Osmân Şemseddîn adına kayıtlı mecmû’a ekseninde ve ilgili mecmû’a metninin sunduğu veriler üzerinden bazı tespît ve değerlendirmelerde bulunuldu.

  5. Erken Çocukluk Dönemi Dini Gelişim Teorileri Bağlamında Din Eğitimi Religious Education in the Context of Early Childhood Religious Development Theories

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    Cemil ORUÇ

    2013-09-01

    make senseanymore, moving with these approaches lead to many permanentproblems. The child's religious education must be different from adultsin terms of both content and method. In terms of Islamic religiouseducation, doctrinal and normative religious education for children ofthis period can be said to bring harm rather than goodness. During thisperiod, religious education should take into consideration ofcontribution to emotional development, increasing communication andlanguage skills, feeling the sacred and eternal with different dimensionand being familiar with the language of religion. İnsan hayatının önemli bir alanını oluşturan dinin ya da kutsalın kaynağı, gelişimi ve kurumsallaşması konusunda yaklaşık yarım yüzyıldır birçok çalışma yapılmıştır. Bu çalışmalar bize özellikle erken çocukluk döneminin birçok açıdan keşfedilmeyi bekleyen önemli bir gelişim alanı olduğunu göstermektedir. Gelişim psikolojisindeki yaklaşımların konuyu ele alış tarzları farklı olmakla beraber, yaklaşık yedi yaşlarına kadar çocukta canlı bir dini merakın varlığı, özellikle de son dönem araştırmaların çocuk-yetişkin ilişkisini kısmen farklı bir boyutta ele almaları bu dönemdeki din eğitiminin niteliğini de etkiler mahiyettedir. Bu konuda yapılan çalışmaları üç aşamada incelemek mümkündür. İlk aşama Freud, Piaget, Erikson, Jung gibi psikanalitik ve bilişsel psikolojinin önemli temsilcilerinin çalışmalarından etkilenen ilk dini gelişim çalışmalarıdır. İkinci aşama bu teorilerin yanı sıra Kohlberg’in geliştirdiği ahlakî gelişim kuramından etkilenen ikinci dalga dini gelişim teorileridir. Üçüncü aşama ise son yirmi yıldır kültürel antropolojiden etkilenen dini gelişim çalışmalarıdır. Bu çalışmalar kaçınılmaz bir şekilde erken çocukluk dönemi din eğitimini birçok yönüyle etkilemiştir. Çünkü çocuğun yaklaşık yedi yaşlarına kadar dini bir nitelik g

  6. REBIRTH OF AN OLD HISTORY: INTERTEXUAL ANALYSIS OF THEME AND IMAGERY IN BLACK BOOK IN FIRST CONTEXT ESKİ BİR HİKÂYENİN YENİDEN DOĞUŞU: KARA KİTAP’TAKİ İZLEK VE İMGELEMİN METİNLERARASILIK BAĞLAMINDA İNCELENMESİ

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    Ülkü ELİUZ

    2012-01-01

    reaching divine love from human love Modern Türk edebiyatı metinlerinde, “eski”nin zamansal ve mekânsal sınırlamaları aşılarak kültürel bellek mekânları metinsel arketip niteliğinde kullanılır. Geleneğin aşılacak değil, kaynak olarak kullanılacak bir birikim şeklinde algılanması gerektiğinin göstergesi olan bu metinlerde özellikle içerik ödünçlemesi yapılarak Doğu ve Batı edebiyatlarının evrensel izlekleri metinlerarası yöntemlerle yeniden yazılır. Hafızanın ayak seslerinin tüm anlatı boyunca varlığını sürdürdüğü Orhan Pamuk‟un Kara Kitap adlı romanı da gelenek-modernizm buluşmasında varlık bulan postmodern bir yeni‟den yazma/ yeni‟den yaratma çabasının sonucudur. Eserde eski imgeler (Hüsn ü Aşk, Mantıku‟t- Tayr, Mevlana-Şems aşkı ile yeni metin arasında bir sürerlilik ve bütünlük oluştuğu görülür. Kara Kitap‟ın arka planında Şeyh Galip‟in Hüsn ü Aşk, Attar‟ın Mantıku‟t-Tayr adlı mesnevileri ve Mevlana-Şems imgeleri ile aktarılan kendi-öteki bütünleşmeleri yer alır. Üç metin de metaforik bir arayış yolculuğunun hikâyesini yansıtırlar. Tasavvufi düşünceye göre “arayış” kendi varoluş hakikatine (insan-ı kâmil ulaşmak isteyen insanın içsel yolculuğu (seyr ü sülûk dur. Söz konusu arayışı motive eden güç ise “aşk”tır. Bu bağlamda üst anlatı (tasavvuf ile gönderge metinler (Hüsn ü Aşk; Mantıku‟t-Tayr; Mevlana-Şems aşkı ve ana metnin (Kara Kitap, sabit ve değişmez bir doğası olmayan bireye ait hiç bitmeyen değerleri aktaran yaratım deneyimleridir.Bu çalışma, geçmişin, „şimdi‟nin, belleğin ve bireysel özdeşliğin devamlılığına olanak tanıyan bu metinlerin gelenek-içi parametrelerin kuramsal ve yöntemsel kullanımları bağlamında metinlerarası incelenmesinden oluşmaktadır. Bireye ve topluma ait değerler dizgesinin irdelendiği; söylemsel izlekler ve tinsel bağıntıda bulu

  7. Eleştirel Okuma-Yazma Eğitimi Programının Türkçe Öğretmeni Adaylarının Türkçe Dersini Planlama Ve Uygulama Sürecine Etkisi The Effects Of Critical Reading-Writing Training On Turkish Language Teacher Candidates’ Turkish Course Planning And Practice Skills

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    Ayşegül KARABAY

    2013-09-01

    ı bir fark bulunmuştur. Araştırmanın nitel bulguları da nicel bulgusunu desteklemektedir. Öğretmen adaylarının ders planlarında hazırlayıp uyguladıkları etkinliklerin özellikleri göz önüne alındığında eleştirel okuma-yazmanın nitelikleriyle tutarlı olduğu ve eleştirel okuma-yazmayı geliştirici niteliğinde olduğu söylenebilir.

  8. Türkçe Öğrenimi İçin Web Tabanlı Zeki Öğretim Sistemi (Türkzös Ve Değerlendirmesi Web Based Intelligent Tutoring System For Turkish Learning (Türkzös And Evaluation

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    Nursal ARICI

    2013-09-01

    ştirilmiş olup; web, ses sentezleme-tanıma sistemleri, animasyon, resim, şekil gibi zenginleştirilmiş öğelerin kullanılmasına imkân sağlar. Zenginleştirilmiş öğelerle desteklenen sistemin, Türkçe dil eğitiminde okuma, konuşma, yazma, dinleme temel becerilerin geliştirilmesine katkıda bulunması hedeflenmektedir. TÜRKZÖS’ün bir diğer özelliği de; yapay zekâ teknikleri ile geliştirilen bir zeki öğretim sistemi (ZÖS olmasıdır. Sistemi zeki kılan özellikler şu şekilde sıralanabilir; (i.sisteme yüklenen alan bilgisi içeriğini öğrencinin bilgi seviyesine ve bireysel yeterliliklerine göre uyarlanabilir biçimde sunabilmesi, (ii.öğrencinin ihtiyacına uygun zeki yardım, rehberlik ve yönlendirmeler yapabilmesidir. TÜRKZÖS sekiz bileşenden meydana gelmektedir; Bunlardan üçü Zeki Öğretim Sistemleri içinde yer alan standart bileşenlerdir. Diğer bileşenlerden ses sentezleme ve sesli ifade tanıma bileşenleri okuma ve konuşma becerilerinin geliştirilmesine yönelik etkinliklerin düzenlenmesi ve bunların öğrenciler tarafından uygulanabilmesini sağlar. Bilgisayar uyarlamalı test ve öğrenci izleme bileşenleri Yapay Zekâ teknikleri ile geliştirilen özgün modellerdir. Bu bileşenler, öğrencinin bilgi seviyesi ve yeterliliklerini belirleyip, ona uygun içerik, yardım ve yönlendirmeler sunar. İçerik yönetim sistemi bileşeni ise öğrenciye sunulacak ders içeriklerinin hazırlanması ve yönetilmesini sağlar. Bu bileşenin esnek ve kullanışlı bir yapısı vardır. Bu sayede, hem anadil, hem de ikinci dil olarak Türkçe eğitimine yönelik ders içeriklerinin oluşturulabilmesi veyönetilebilmesi mümkündür. Sistemi bu yönüyle test edebilmek üzereöncelikle Türkçe anadil eğitimine yönelik bazı ders içeriklerioluşturulmuştur. Bu içerikler, İlkokul 5 ve 6. Sınıf Türkçe dersmüfredatına uygun ünite ve konulardan seçilmiştir. Türkçe dersi verenöğretmen ve öğretmen adaylarına sistemi

  9. Yeşilçam Döneminde Van’ın Sinema Kültürü Van’s Cinema Culture in Yeşilçam Period

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    Arzu ERTAYLAN

    2013-09-01

    österici olması amaçlanmıştır.Bu tür bir çalışmada, önceki dönemlere ışık tutacak araştırmalara ya da en azından kanıt niteliğindeki resmi belgelere ihtiyaç duyulmaktadır. Ancak çalışma süresince yapılan araştırmalarda ciddi bir kaynak sıkıntısı ile karşı karşıya kalınmıştır. Bu sorun çalışmanın görüşme tekniğine dayalı olarak gelişmesini zorunlu kılmıştır. Bu nedenle de gerek dönemin eski sinema salonu sahipleri gerekse sinema ve sanata ilgisiyle tanınmış Vanlılar ile görüşmeler yapılarak elde edilen bilgiler betimsel analiz yöntemi ile analiz edilmiş, sonuçlar da Türkiye’nin o dönemlerdeki genel sosyo-politik ve sosyo-kültürel durumu ile ilişkilendirilerek yorumlanmıştır.Çalışmanın ‘giriş’ bölümünde çalışmanın amacı, önemi ve kapsamı belirtilmiş ardından çalışma sırasında karşılaşılan sorunlar ve sınırlılıklar açıklanmıştır. İkinci bölümde çalışmanın dayandığı ‘betimsel analiz yöntemi’ ve bu yöntemin kullanılması için veri sağlayacak olan ‘yapılandırılmamış görüşme tekniği' kavramları ele alınmış söz konusu yöntem ve tekniğin avantaj ve dezavantajları belirtilmiştir. Daha sonraki bölümlerde, yapılandırılmamış görüşme tekniğinin gereklerine uygun olarak belirlenen temalar çerçevesinde Van’ın 1980’li yıllara kadar devam eden sinema kültürü ortaya konulmaya çalışılmıştır. Sonuç bölümünde ise çalışma boyunca elde edilen veriler, Türk sinemasının geneline ilişkin bilgiler çerçevesinde değerlendirilerek Türkiye’nin genel sosyo-politik durumu ile bağlantılı olarak açıklanmaya çalışılmıştır.

  10. Kongre İzlenimleri

    Directory of Open Access Journals (Sweden)

    Yasemin Günay Balcı

    1999-12-01

    Compostela Katedralinin görkemini kelimelerle ifade edemeyeceğim. Doç. Dr. M.Akif İnanıcı ve Doç. Dr. Ahmet Yılmaz fotoğraflarını çekip kameraya aldılar. Bilgisayar ortamına da aktarmayı planlıyorlardı. Santiago de Compostela, Vatikan’dan sonraki dünyanın 2. büyük katedraline sahip olmakla ünlü. Bu yüzden bir çok uluslararası dinsel toplantı, konferans ve kongrelerin de düzenlendiği bir merkez niteliğinde. Beyoğlu ve eski Bodrum sokaklarını andıran, iki taraflı restoran ve meyhanelerin bulunduğu sokakları ve bu sokaklarla katedral çevresinde verilen, çevredeki herkesi etrafına çeken sokak konserleri de bahsetmeden geçilemez. AVRUPA’DA HALK SAĞLIĞINDA CİNSİYET EŞİTLİĞİNİN GELİŞTİRİLMESİ, 9-12 Eylül 2000, Dublin, İRLANDA 9-\t12 Eylül 2000 tarihleri arasında yapılan kongre, merkezi Dublin’de bulunan Avrupa Kadın Sağlığı Ens- titüsü’nce Trinity College’de düzenlendi. Avrupa Topluluğu ve Dünya Sağlık Örgütü’nün kadın ve çocuk sağlığı ile ilgili bölge sorumluları, danışman ve proje yöneticilerinin de bulunduğu kongrede çoğunluğu Avrupa Topluluğu üyesi ülkelerden, değişik üniversite ve hükümet dışı kuruluşlardan yaklaşık 250-300 civarında katılımcı mevcuttu. 18 sözlü sunum ve konferans ile 27 poster sunulan, ayrıca 6 değişik konuda yuvarlak masa toplantıları yapılan kongreye Türkiye’den Uzm. Dr. Yasemin Günay, "Physical Violence Against Women" ve "Gender Inequity in Working Adolescents & Searches for Solutions in Girls Point of View" başlıklı 2 poster bildirisi ile katıldı. Kongrede kalp-damar hastalıklarının eskiden bilindiği gibi erkek hastalığı olmadığı, değişen yaşam tarzı ile birlikte kadınlarda da aynı oranda rastlandığı, erkeklerin daha fazla riskli grup olarak değerlendirildiği klasik yaklaşımla erken teşhis için kadınlarda yapılması gereken tetkiklerin atlanabileceği, keza osteoporoz, demans ve Alzheimer

  11. LANGUAGE SKILLS AND THE CRITICAL THINKING DİL BECERİLERİ VE ELEŞTİREL DÜŞÜNME

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    Adnan KARADÜZ

    2010-07-01

    ştirme hedefi, eğitimin temel hedeflerinden biri hâline gelmiştir. Dil becerilerinin herhangi birinde hedeflenen kazanımların, eleştirel nitelikte gerçekleşmesi bireylerin düşünce gelişimine simetrik olarak dil gelişimini de etkinleştirir. Eleştirel okuma, eleştirel dinleme ve konuşma, eleştirel ve yaratıcı yazma çalışmaları öğrencilerin yaratıcı düşünme, iletişim kurma, problem çözme, araştırma, karar verme gibi temel becerilerinin gelişmesini destekler. Bireyin ne yapacağına ve neye inanacağına karar vermesi için çözümleyici, değerlendirmeye yönelik bilinçli olarak yargılarda bulunması ve bu yargıları ifade etmesidir. Eleştirel düşünme becerisinin temelinde sağlıklı, disiplinli, sistematik ve sorgulayıcı düşünme vardır ve bireyin eleştirel düşünme becerilerini geliştirebilmesi için yeterli düzeyde düşünce alt yapısına sahip olması gerekir. Bireyin düşünce gelişimi ya da düşünmeyi öğrenmesi kendisi olmasına, kendi düşüncelerini oluşturmasına dayanak oluşturur.Okuma becerisine yönelik kazanımlar, öğrencilerde eleştirel niteliğe dönüştüğünde, onlar, okuduklarından sonuçlar çıkarıp değerlendirme yapabilirler. Eleştirel okuyucular, kullanmalık bir metinde yazarın kendisine aktardığı bilginin gerçek hayattaki karşılığını aramaya, bulmaya çalışır. Okuyucu, okuduğunu anladıktan sonra onu bir değerlendirmeye tabi tutar, yorumlayabilir, eleştirir. Bireylerin anlama becerilerinin eleştirel düzeyde gelişmesi okumayla olduğu kadar dinlemeyle de gerçekleştirilebilir. Eleştirel dinleme, bir bakıma dinlenenlerin doğru olup olmadıklarını kontrol etme, bildirileri etkin bir yolda alma ve yorumlama sürecidir. Algılama, kavrama gibi birtakım zihinsel tepkileri içerir.Anlatma becerileri arasında yer alan konuşma ve yazma becerilerinin eleştirel düzeyde geliştirilmesi de oldukça önemlidir. Eleştirel anlatıcılar sosyal becerilere sahip

  12. Dergilerden Özetler

    Directory of Open Access Journals (Sweden)

    Zeki Kır

    2006-04-01

    Full Text Available DALAK TÜMÖRLERİ- ON YILLIK OTOPSİ ÇALIŞMASI Indian ] Pathol Microbiol, 2005;48(2:186-9 Splenic tumours-autopsy study of ten years. Rane SR, Bagwan IN, Pingle P, Holla VV. Retiküloendotelyal sistemin en büyük komponenti olan dalakta tümör metastazlarına seyrek olarak rastlanılır. Dalak metastazlar genellikle multiorgan metastazlarının bir bölümü olarak karşımıza çıkar. 10 yıllık otopsi çalışmamızda dalakta neo-plazm insidansmı %1.45 (4812/70 olarak bulduk. Çalışmada ayrıca nadirde olsa primer dalak neoplazmlarma da rastladık. BOTOX’A BAĞIT ANAFLAKTİK ÖLÜM VAKASI Journal of Forensic Sciences, 2005;50(l:169-72 Fatal case of BOTOX®-related anaphylaxis Li M, Goldberger BA, Hopkins C Anaflaktik ilaç reaksiyonları seyrek olarak meydana gelmesine rağmen ciddi seyrederler. Yaygm olarak BOTOX adıyla bilinen Botolinum Toksin A; servikal distoni, aim kırışıklığı, ble-ferospazm, strabismus ve 7. kranyal sinir hastalıklarında kullanılmaktadır. Kronik boyun ve bel ağrısı olan vakamız, botox-lidokain karışımı kullanımı sonucu ölen ilk vaka olarak literatüre geçmiştir. Tıbbi kayıtlar, otopsi ve laboratuvar bulgularına göre ölümün botox-lidokain karışımına bağlı anaflaksi sonucu meydana geldiği anlaşılmıştır. Botox’un tek başma anaflaksi yapabileceği kanıtlanmasa bile bu vaka günümüzde kullanımı hızla artan bu ilaç için bir uyarı niteliği taşımaktadır. ÇÜRÜMÜŞ CESETLERDE DOLAYLI YOLDAN DERİ-ELDİVEN METODU YOLUYLA PARMAK İZİ ELDE EDİLMESİ SAfrMedJ. 2005;95(9:665-6. Taking fingerprints from a decomposed body using the "indirect cadaver hand skin-glove method" Knobel GJ. Nehirden çürümüş olarak çıkarılan vakada sağ el derisi dış muayene esnasında soyularak çıkmıştır. Elde edilen deri parçasınm eldiven tarzında kullanılması sonucu elde edilen parmak izi veri bankalarıyla karşılaştırılmış 1 saat içerisinde vakan