WorldWideScience

Sample records for metodami radiacyjnymi cz

  1. Erbium related centers in CZ-silicon

    NARCIS (Netherlands)

    Jantsch, W; Przybylinska, H; SuprunBelevich, Y; Stepikhova, M; Hendorfer, G; Palmetshofer, L; Suezawa, M; KatayamaYoshida, H

    1995-01-01

    CZ Si implanted with Er shows the same cubic crystal field splitting of the 1.54 mu m luminescence as FZ-SI together with otter, defect- and oxygen correlated Pr complexes. The cubic centers exhibit somewhat shorter radiative life- and excitation times. The 100 times higher luminescence yield of CZ

  2. 5th AKUTNE.CZ Congress

    Directory of Open Access Journals (Sweden)

    Petr Štourač

    2013-12-01

    Full Text Available This year's AKUTNE.CZ Congress was endorsed by the Faculty of Medicine of Masaryk University (MU, the University Hospital Brno, the Czech Society of Anaesthesiology and Intensive Care Medicine (CSARIM, the Czech Society of Intensive Care Medicine (CSIM, the Czech and Slovak Forum for Sepsis (CSFS, the MEdical FAculties NETwork (MEFANET, and the Expert Group for Obstetric Anaesthesia and Analgesia at CSARIM. The Congress was organized by the Department of Anaesthesiology and Intensive Care Medicine at the University Hospital Brno, the AKUTNE.CZ portal, the AKUTNE.CZ Foundation, the Czech Medical Chamber, and the Professional and Trade Union of Medical Workers of Bohemia, Moravia and Silesia.

  3. Marketingová strategie VOYO.cz

    OpenAIRE

    Novotná, Markéta

    2012-01-01

    The aim of the diploma thesis is to analyse and evaluate the marketing strategy of VOYO.cz and recommend improvements of the current strategy. Theoretical part is divided into three chapters. The first chapter deals with the basic concept of marketing and the definition of marketing process. Second chapter defines the process of marketing planning and the third chapter offers basic theoretical approaches for the formulation of product, pricing, promotional and distribution strategy, which are...

  4. Inżynierowany jedwab pajęczy: inteligentny biomateriał przyszłości. Część II

    Directory of Open Access Journals (Sweden)

    Katarzyna Kaźmierska

    2011-06-01

    Full Text Available Opracowanie i rozwój technologii produkcji inżynierowanego jedwabiu stworzyły realne możliwości jego praktycznych zastosowań. Rekombinowany inżynierowany pajęczy jedwab (IPJ stanowi substrat do produkcji różnych biomateriałów, takich jak: filmy, hydrożele, włókna, rusztowania, mikrokapsułki, mikro- i nanosfery. Wytwarzanie in vitro włókien odbywa się w sposób naśladujący warunki naturalnie panujące w gruczole przędnym pająka: w obecności jonów fosforanowych oraz sił ciągnących. Filmy otrzymywane są przez odparowanie rozpuszczalnika z roztworu jedwabiu, natomiast rezultatem odparowywania rozpuszczalnika w obecności porogenu są jedwabne rusztowania. Hydrożele powstają w wyniku polimeryzacji cząstek jedwabiu w roztworach o niskim pH. Polimer jedwabiu powstający na granicy niemieszających się faz wykorzystywany jest do otrzymywania mikrokapsułek. Najmniejsze z opisywanych form – jedwabne sfery powstają przez wysolenie białek jedwabiu jonami fosforanowymi. Cechami wspólnymi jedwabnych biomateriałów są biokompatybilność oraz biodegradowalność pozwalające na wykorzystanie ich w medycynie i farmacji, a strategia konstrukcji białek hybrydowych polegająca na nadaniu metodami inżynierii genetycznej pożądanej funkcji dalej rozszerza możliwości ich wykorzystania.

  5. Degradation of bulk diffusion length in CZ silicon solar cells

    Energy Technology Data Exchange (ETDEWEB)

    Reiss, J.H.; King, R.R.; Mitchell, K.W. [Siemens Solar Industries, Camarillo, CA (United States)

    1995-08-01

    Commercially-produced, unencapsulated, CZ silicon solar cells can lose 3 to 4% of their initial efficiency after exposure to light. After this initial, rapid ( < 30 min.) decrease, the cell power output remains stable. The cell performance recovers in a matter of hours in the dark at room temperature, and degrades again under light exposure. The different conditions under which CZ silicon cells degrade, and the reverse process, annealing, are characterized with the methods of spectral response and current-voltage (I-V) measurements. Iron impurities are a possible cause of this effect.

  6. Marketingová strategie firmy Interimex CZ a.s.

    OpenAIRE

    Škodová, Adéla

    2013-01-01

    The goal of the diploma thesis is to analyze the marketing strategy of the company Interimex CZ .a.s. that is noted for its brand O'Style on the sport and free time clothing Czech market. Based on the analysis I would like to propose some recommendations for changes to the internet marketing tools effectiveness. The thesis is divided into five chapters. First two chapters provide theoretical framework for practical part of the thesis. First chapter contains definition of internet marketing, i...

  7. GALVANIC CORROSION AND PROTECTION OF GECM/LY12CZ COUPLES UNDER DIFFERENT ATMOSPHERIC EXPOSURE CONDITIONS

    Institute of Scientific and Technical Information of China (English)

    F. Lu; Q.P. Zhong; C.X. Cao

    2003-01-01

    Galvanic compatibility between graphite epoxy composite materials (GECM) andLY12CZ aluminum alloy was evaluated in different atmospheric corrosion environ-ments and by laboratory electrochemical measurements. Open circuit potential elec-trochemical measurements showed a relatively large potential difference about 1 voltbetween the GECM and LY12CZ aluminum alloy, and this difference provided thedriving force for galvanic corrosion of the LY12CZ aluminum alloy as an anode.Having been exposed for 1, 3 or 5 years in Beijing, Tuandao and Wanning station,GECM/L Y12CZ couples showed significant losses of strength and elongation. Protec-tive coatings and non-conductive barriers breaking the galvanic corrosion circuit wereevaluated under the same atmospheric corrosive conditions. Epoxy primer paint, glasscloth barriers and LY12CZ anodizing were effective in galvanic corrosion control forGECM/L Y12CZ couples.

  8. GALVANIC CORROSION AND PROTECTION OF GECM/LY12CZ COUPLES UNDER DIFFERENT ATMOSPHERIC EXPOSURE CONDITIONS

    Institute of Scientific and Technical Information of China (English)

    F.Lu; Q.P.Zhong; 等

    2003-01-01

    Galvanic compatibility between graphite epoxy composite materials (GECM) and LY12CZ aluminum alloy was evaluated in different atmospheric corrosion environ-ments and by laboratory electrochemical measurements.Open circuit potential elec-trochemical measurements showed a relatively large potemtial difference about 1 volt between the GECM and LY12CZ aluminum alloy,and this difference provided the driving force for galvanic corrosion of the LY12CZ aluminum alloy as an anode. Having been exposed for 1,3or 5years in Beijing,Tuandao and Wanning station,GECM/LY12CZ couples showed significant losses of strength and elongation.Protec-tive coatings and non-conductive barriers breaking the galvanic corrosion circuit were evaluated under the same atmospheric corrosive conditions.Epoxy primer paint,glass cloth barriers and LY12CZ anodizing were effective in glvanic corrosion control for GECM/LY12CZ couples.

  9. First Measurement of Beam-Recoil Observables Cx and Cz

    Energy Technology Data Exchange (ETDEWEB)

    R. Bradford; R.A. Schumacher; G. Adams; M.J. Amaryan; P. Ambrozewicz; E. Anciant; M. Anghinolfi; B. Asavapibhop; G. Asryan; G. Audit; H. Avakian; H. Bagdasaryan; N. Baillie; J.P. Ball; N.A. Baltzell; S. Barrow; V. Batourine; M. Battaglieri; K. Beard; I. Bedlinskiy; M. Bektasoglu; M. Bellis; N. Benmouna; B.L. Berman; N. Bianchi; A.S. Biselli; B.E. Bonner; S. Bouchigny; S. Boiarinov; D. Branford; W.J. Briscoe; W.K. Brooks; S. B¨ultmann; V.D. Burkert; C. Butuceanu; J.R. Calarco; S.L. Careccia; D.S. Carman; B. Carnahan; S. Chen; P.L. Cole; A. Coleman; P. Collins; P. Coltharp; D. Cords; † P. Corvisiero; D. Crabb; H. Crannell; V. Crede; J.P. Cummings; R. De Masi; E. De Sanctis; R. De Vita; P.V. Degtyarenko; H. Denizli; L. Dennis; A. Deur; K.V. Dharmawardane; R. Dickson; C. Djalali; G.E. Dodge; J. Donnelly; D. Doughty; P. Dragovitsch; M. Dugger; S. Dytman; O.P. Dzyubak; H. Egiyan; ; K.S. Egiyan; L. El Fassi; L. Elouadrhiri; A. Empl; P. Eugenio; R. Fatemi; G. Fedotov; G. Feldman; R.J. Feuerbach; T.A. Forest; H. Funsten; M. Garcon; G. Gavalian; ; G.P. Gilfoyle; K.L. Giovanetti; F.X. Girod; J.T. Goetz; A. Gonenc; R.W. Gothe; K.A. Griffioen; M. Guidal; M. Guillo; N. Guler; L. Guo; V. Gyurjyan; C. Hadjidakis; K. Hafidi; H. Hakobyan; R.S. Hakobyan; J. Hardie; D. Heddle; F.W. Hersman; K. Hicks; I. Hleiqawi; M. Holtrop; J. Hu; M. Huertas; C.E. Hyde-Wright; Y. Ilieva; D.G. Ireland; B.S. Ishkhanov; E.L. Isupov; M.M. Ito; D. Jenkins; H.S. Jo; K. Joo; H.G. Juengst; N. Kalantarians; J.D. Kellie; M. Khandaker; K.Y. Kim; K. Kim; W. Kim; A. Klein; F.J. Klein; M. Klusman; M. Kossov; L.H. Kramer; V. Kubarovsky; J. Kuhn; S.E. Kuhn; S.V. Kuleshov; J. Lachniet; J.M. Laget; J. Langheinrich; D. Lawrence; A.C.S. Lima; K. Livingston; H.Y. Lu; K. Lukashin; M. MacCormick; J.J. Manak; C. Marchand; N. Markov; S. McAleer; B. McKinnon; J.W.C. McNabb; B.A. Mecking; M.D. Mestayer; C.A. Meyer; T. Mibe; K. Mikhailov; M. Mirazita; R. Miskimen; V. Mokeev; K. Moriya; S.A. Morrow; M. Moteabbed; V. Muccifora; J. Mueller; G.S. Mutchler; P. Nadel-Turonski; J. Napolitano; R. Nasseripour; N. Natasha; S. Niccolai; G. Niculescu; I. Niculescu; B.B. Niczyporuk; M.R. Niroula; R.A. Niyazov; M. Nozar; G.V. O’Rielly; M. Osipenko; A.I. Ostrovidov; K. Park; E. Pasyuk; C. Paterson; S.A. Philips; J. Pierce; N. Pivnyuk; D. Pocanic; O. Pogorelko; E. Polli; I. Popa; S. Pozdniakov; B.M. Preedom; J.W. Price; Y. Prok; D. Protopopescu; L.M. Qin; B.P. Quinn; B.A. Raue; G. Riccardi; G. Ricco; M. Ripani; B.G. Ritchie; F. Ronchetti; G. Rosner; P. Rossi; D. Rowntree; P.D. Rubin; F. Sabatie; J. Salamanca; C. Salgado; J.P. Santoro; ; V. Sapunenko; V.S. Serov; A. Shafi; Y.G. Sharabian; J. Shaw; N.V. Shvedunov; S. Simionatto; A.V. Skabelin; E.S. Smith; L.C. Smith; D.I. Sober; D. Sokhan; M. Spraker; A. Stavinsky; S.S. Stepanyan; S. Stepanyan; B.E. Stokes; P. Stoler; I.I. Strakovsky; S. Strauch; M. Taiuti; S. Taylor; D.J. Tedeschi; U. Thoma; R. Thompson; A. Tkabladze; S. Tkachenko; L. Todor; C. Tur; M. Ungaro; M.F. Vineyard; A.V. Vlassov; K. Wang; D.P. Watts; L.B. Weinstein; H. Weller; D.P. Weygand; M. Williams; E. Wolin; M.H. Wood; A. Yegneswaran; J. Yun; L. Zana; J. Zhang; B. Zhao; and Z.W. Zhao

    2007-03-01

    Spin transfer from circularly polarized real photons to recoiling hyperons has been measured for the reactions $\\vec\\gamma + p \\to K^+ + \\vec\\Lambda$ and $\\vec\\gamma + p \\to K^+ + \\vec\\Sigma^0$. The data were obtained using the CLAS detector at Jefferson Lab for center-of-mass energies $W$ between 1.6 and 2.53 GeV, and for $-0.85<\\cos\\theta_{K^+}^{c.m.}< +0.95$. For the $\\Lambda$, the polarization transfer coefficient along the photon momentum axis, $C_z$, was found to be near unity for a wide range of energy and kaon production angles. The associated transverse polarization coefficient, $C_x$, is smaller than $C_z$ by a roughly constant difference of unity. Most significantly, the {\\it total} $\\Lambda$ polarization vector, including the induced polarization $P$, has magnitude consistent with unity at all measured energies and production angles when the beam is fully polarized. For the $\\Sigma^0$ this simple phenomenology does not hold. All existing hadrodynamic models are in poor agreement with these results.

  10. The Multi-periodic Blazhko Modulation of CZ Lacertae

    CERN Document Server

    Sódor, Á; Szeidl, B; Váradi, M; Henden, A; Vida, K; Hurta, Zs; Posztobányi, K; Dékány, I; Szing, A

    2010-01-01

    Thorough analysis of the multicolour CCD observations of the RRab-type variable, CZ Lacertae is presented. The observations were carried out in two consecutive observing seasons in 2004 and 2005 within the framework of the Konkoly Blazhko Survey of bright, northern, short-period RRab variables. The O-C variation of CZ Lac indicated that a significant period decrease took place just around the time of the CCD observations. Our data gave a unique opportunity to study the related changes in the pulsation and modulation properties of a Blazhko star in detail. Two different period components ($\\approx$14.6 d and $\\approx$18.6 d) of the Blazhko modulation were identified. Both modulation components had similar strength. The periods and amplitudes of the modulations changed significantly from the first season to the next, meanwhile, the mean pulsation amplitude slightly decreased. The modulation frequencies were in a 5:4 resonance ratio in the first observing season then the frequencies shifted in opposite direction...

  11. A new approach to the CZ crystal growth weighing control

    Science.gov (United States)

    Kasimkin, P. V.; Moskovskih, V. A.; Vasiliev, Y. V.; Shlegel, V. N.; Yuferev, V. S.; Vasiliev, M. G.; Zhdankov, V. N.

    2014-03-01

    The aim of a new approach was to improve the robustness of the weighing control of CZ growth especially for semiconductors, for which the “anomalous“ behavior of the apparent weight provokes instability of the servo-loop. In the described method, the periodic reciprocating measuring motion of small amplitude is superposed on the uniform pull-rod movement. The cross-sectional area is determined from the weight sensor responses that are modulated mainly by the forces of hydrostatic pressure. By the example of germanium crystal growth, it is shown that in the control system, based on such a way of the diameter measuring, a simple PI control law provides a good close loop system's stability and dynamics for the materials with the “anomalous” behavior of a weighing signal. The effect of a meniscus on the modulation measuring of a crystal diameter is also discussed.

  12. Eutanazja. Potwierdzenie czy zaprzeczenie człowieczeństwa?

    OpenAIRE

    Kosowicz, Marcel

    2015-01-01

    Rozwój cywilizacji wpływa na jakość życia człowieka. Wraz z postępującymi przemianami pojawiają się pytania o moralność oraz godność ludzi. Zmianie ulegają także poglądy nt. eutanazji. Kościół, lekarze czy filozofowie w odmienny sposób motywują swoje stanowiska. Bez względu na przytaczane opinie i argumenty, eutanazja jest naruszeniem wartości życia. Zgoda na takie i inne działania powoduje erozję systemu wartości. Powoduje brak kontroli oraz niewiedzę, kiedy powiedzieć stop. The developme...

  13. Sample representativeness verification of the FADN CZ farm business sample

    Directory of Open Access Journals (Sweden)

    Marie Prášilová

    2011-01-01

    Full Text Available Sample representativeness verification is one of the key stages of statistical work. After having joined the European Union the Czech Republic joined also the Farm Accountancy Data Network system of the Union. This is a sample of bodies and companies doing business in agriculture. Detailed production and economic data on the results of farming business are collected from that sample annually and results for the entire population of the country´s farms are then estimated and assessed. It is important hence, that the sample be representative. Representativeness is to be assessed as to the number of farms included in the survey and also as to the degree of accordance of the measures and indices as related to the population. The paper deals with the special statistical techniques and methods of the FADN CZ sample representativeness verification including the necessary sample size statement procedure. The Czech farm population data have been obtained from the Czech Statistical Office data bank.

  14. La varias veces pionera Capilla Bakócz = The several times pioneer chapel Bakócz

    Directory of Open Access Journals (Sweden)

    Laura Corrales Pérez

    2014-12-01

    Full Text Available Resumen Levantada a principios del siglo XVI en Esztergom, la capilla  funeraria del cardenal Tamás Bakócz se aleja del gótico  dominante para constituir el ejemplo más precoz y depurado de arquitectura renacentista al norte de los Alpes. Prematuramente próxima a sus contemporáneos italianos, se vio influenciada por la procedencia artística de sus maestros constructores, y por la poderosa figura de su mecenas y su estrecha relación con el papa Julio II, embarcado en la concepción de la nueva basílica  vaticana. Relevante es también su historia tras la muerte de su patrón. Tras sobrevivir ilesa a casi 150 años de dominación  otomana, fue objeto a comienzos del siglo XIX de una  impresionante y pionera operación de despiece y traslado que aún hoy sigue sorprendiendo por su contemporánea concepción sobre el valor de lo monumental. Abstract Built in the first decade of the 16th century in the Hungarian city of Esztergom, the burial chapel of Cardinal Tamás Bakócz  abandoned the dominant Gothic style to constitute the earliest and most perfect example of Renaissance architecture north of the Alps. Surprisingly close to Italian examples from the same period, this Hungarian building was strongly conditioned by the artistic background of its building masters. However, its main influence came from the leading figure of the Cardinal and his close relationship with the Pope Julius II, who was working at that time in the project for the new Vatican basilica. It is also highly relevant the evolution of the chapel after Bakócz's death. It survived to 150 years of Turkish occupation before being cut into pieces and transferred to a new place. This pioneer process took place in the early beginning of XIX century and is still surprising for the modern concept about restoration that it involves.

  15. Infrared absorption peaks in nitrogen doped CZ silicon

    Energy Technology Data Exchange (ETDEWEB)

    Inoue, N. [RIAST, Osaka Prefecture University, Gakuen-cho, Sakai, Osaka 599-8570 (Japan); JEITA Nitrogen Measurement WG, 3-11 Kanda-surugadai, Chiyoda-ku, Tokyo 101-0062 (Japan)]. E-mail: inouen@riast.osakafu-u.ac.jp; Nakatsu, M. [RIAST, Osaka Prefecture University, Gakuen-cho, Sakai, Osaka 599-8570 (Japan); Ono, H. [Japan Fine Ceramics Center, 2-4-3 Nishi-shinbashi, Minato-ku, Tokyo 105-0003 (Japan); JEITA Nitrogen Measurement WG, 3-11 Kanda-surugadai, Chiyoda-ku, Tokyo 101-0062 (Japan); Inoue, Y. [Tokyo University of Education, Bunkyo-ku, Tokyo 117-0002 (Japan)

    2006-10-15

    Dependences on annealing temperature and nitrogen concentration were examined for new local vibration mode infrared absorption peaks at 856, 973, 984 and 1002 cm{sup -1} in nitrogen-doped CZ silicon crystal. The new absorption peaks were so weak that two sets of samples were examined for temperature and concentration dependences, respectively, to get reliable results. The peak at 1002 cm{sup -1} behaved similarly for annealing, though much weaker, to the known peaks at 810 and 1018 cm{sup -1} which are attributed to interstitial N pair accompanied by the two oxygen interstitials (NNO {sub i}O {sub i}). This suggests that the origin contains 2 O {sub i} also. It was strong in low concentration regime, which is similar to the behavior of shallow thermal donors. This suggests that the structure contains one nitrogen rather than two (N-O interstitial pair). The results were compared with the electronic transition absorption by shallow thermal donors (STD). The absorptions at 1002 and 240 cm{sup -1} behaved similarly. These suggest that the peak at 1002 cm{sup -1} is likely due to NOO {sub i}O {sub i} which is the candidate for STD. The temperature dependence of the other new peaks was slightly different from each other. Origin of the other peaks is not clear yet.

  16. Localized corrosion of LY12CZ under stress in chloride media

    Institute of Scientific and Technical Information of China (English)

    RAO Si-xian; ZHANG Zheng; ZHU Li-qun; ZHONG Qun-peng

    2006-01-01

    Electrochemical methods were applied to investigate the corrosion behaviour of LY12CZ under applied stress in 3% sodium chloride aqueous solution. The experimental results indicate that LY12CZ shows two breakdown potentials on its polarization curve: one is related to the dissolution of the intermetallic particles and the other is related to the cracking of oxidation film and the dissolution of the matrix. When the stress is applied, it varies both breakdown potentials and makes the intermetallic particles and matrix dissolute at lower potentials. The relationship between the variation of the two breakdown potentials and applied stress was summarized. At the same time the influence of stress on the pitting and intergranular corrosion sensitivity of LY12CZ was also investigated. From the results it can be concluded that the stress can significantly affect the localized corrosion behaviour of LY12CZ in 3% NaCl solution.

  17. A modified CZ-1 preserving solution for organ transplantation:comparative study with UW preserving solution

    Institute of Scientific and Technical Information of China (English)

    ZHENG Jun-hua; MIN Zhi-lian; LI Yu-li; ZHU You-hua; YE Ting-jun; LI Jian-qiu; PAN Tie-wen; DING Guo-shan; WANG Meng-long

    2008-01-01

    Background The University of Wisconsin colloid based preserving solution (UW solution) is the most efficient preserving solution for multiorgan transplantation. Unfortunately, unavailability of delayed organ preserving solutions hindered further progression of cardinal organ transplantation in China. In this study, we validated an organ preserving Changzheng Organ Preserving Solution (CZ-1 solution) and compared it with UW solution.Methods A series of studies were conducted on how and how long CZ-1 solution could preserve the kidneys, livers,hearts, lungs and pancreas of New Zealand rabbits and SD rats. Morphology of transplanted organs was studied by visible microscopy and electron microscopy; biochemical and physiological functions and the survival rate of the organs during prolonged cold storage were studied.Results There was no significant difference between CZ-1 and UW solutions in preserving the kidneys, livers, hearts or lungs of rabbits; kidneys, livers, intestinal mucosa or pancreases of SD rats or five deceased donors' testicles. In some aspects, such as preserving rabbits' hearts, rats' intestinal mucosa and pancreases, the effect of CZ-1 solution was superior to UW solution. CZ-1 could safely preserve kidneys for 72 hours, livers for 24 hours, hearts for 18 hours and lungs for 8 hours for SD rats. Twelve kidneys preserved in cold CZ-1 solution for 22-31 hours were transplanted successfully and the mean renal function recovery time was (3.83±1.68) days.Conclusions CZ-1 solution is as effective as UW solution for organ preservation. The development of CZ-1 solution not only reduces costs and improves preservation of organs, but also promotes future development of organ transplantation in China.

  18. Novel accelerated corrosion test for LY12CZ and LC4CS aluminum alloys

    Institute of Scientific and Technical Information of China (English)

    CAI Jian-ping; LIU Ming

    2006-01-01

    A new accelerated corrosion test-comprehensive environmental test (CET) was developed in order to estimate the outdoor corrosion of aluminum alloys in marine environment. The environmental characteristics in CET were studied by atmospheric corrosion monitor (ACM), and the morphology of corrosion product was observed by SEM. The correlation between the accelerated corrosion tests and outdoor exposure was discussed. The results show that the anti-corrosion ranking for LY12CZ, LC4CS, clad LY12CZ, and clad LC4CS in CET is the same as that of the alloys exposed outdoor, and ACM study shows that CET demonstrates the same environmental characteristics as that exposed outdoor. CET is a more accurate accelerated corrosion test, and a mathematical relation was obtained to describe the relation between CET and outdoor test.

  19. Bayesian Analysis of $C_{x'}$ and $C_{z'}$ Double Polarizations in Kaon Photoproduction

    CERN Document Server

    Hutauruk, P T P

    2010-01-01

    Have been analyzed the latest experimental data for $\\gamma + p \\to K^{+} + \\Lambda$ reaction of $C_{x'}$ and $C_{z'}$ double polarizations. In theoretical calculation, all of these observables can be classified into four Legendre classes and represented by associated Legendre polynomial function itself \\cite{fasano92}. In this analysis we attempt to determine the best data model for both observables. We use the bayesian technique to select the best model by calculating the posterior probabilities and comparing the posterior among the models. The posteriors probabilities for each data model are computed using a Nested sampling integration. From this analysis we concluded that $C_{x'}$ and $C_{z'}$ double polarizations require two and three order of associated Legendre polynomials respectively to describe the data well. The extracted coefficients of each observable will also be presented. It shows the structure of baryon resonances qualitatively

  20. Fatigue damage rule of LY12CZ aluminium alloy under sequential biaxial loading

    Science.gov (United States)

    Wang, YingYu; Zhang, DaChuan; Yao, WeiXing

    2014-01-01

    A series of biaxial two-level variable amplitude loading tests are conducted on smooth tubular specimens of LY12CZ aluminium alloy. The loading paths of 90° out-of-phase, 45° out-of-phase and 45° in-phase are utilized. The fatigue damage cumulative rules under two-level step loading of three loading paths are analyzed. By introducing a parameter α which is a function of the phase lag angle between the axial and the torsional loading, a new multiaxial nonlinear fatigue damage cumulative model is proposed. The proposed model is evaluated by the experimental data for two-level loading, multi-level loading of LY12CZ aluminium alloy, and multi-level loading of 45 steel. Fatigue lives predicted are within a factor of 2 scatter band.

  1. Implementation of Tunneling Passivated Contacts into Industrially Relevant n-Cz Si Solar Cells

    Energy Technology Data Exchange (ETDEWEB)

    Nemeth, William; LaSalvia, Vincenzo; Page, Matthew R.; Warren, Emily L.; Dameron, Arrelaine; Norman, Andrew G.; Lee, Benjamin G.; Young, David L.; Stradins, Paul

    2015-06-14

    We identify bottlenecks, and propose solutions, to implement a B-diffused front emitter and a backside pc-Si/SiO2 pasivated tunneling contact into high efficiency n-Cz Si cells in an industrially relevant way. We apply an O-precipitate dissolution treatment to make n-Cz wafers immune to bulk lifetime process degradation, enabling robust, passivated B front emitters with J0 <; 20fA/cm2. Adding ultralow recombination n+ pc-Si/SiO2 back contacts enables pre-metallized cells with iVoc=720 mV and J0=8.6 fA/cm2. However, metallization significantly degrades performance of these contacts due to pinholes and possibly, grain boundary diffusion of primary metal and source contaminates such as Cu. An intermediate, doped a-Si:H capping layer is found to significantly block the harmful metal penetration into pc-Si.

  2. Epilithic algae from caves of the Krakowsko-Częstochowska Upland (Southern Poland)

    OpenAIRE

    Joanna Czerwik-Marcinkowska; Teresa Mrozińska

    2011-01-01

    This paper describes the first study of algae assemblages in 20 caves in the Krakowsko-Częstochowska Upland (Southern Poland), in the period between 2005-2006. The investigations showed mostly on epilithic algae and their subaeric habitats (rock faces within caves and walls at cave entrances). The morphological and cytological variability of algae were studied in fresh samples, in cultures grown on agar plates and in SPURR preparations. A total of 43 algae species was identified, mostly epili...

  3. Analýza konkurence společnosti CZ TOP TRADE s.r.o.

    OpenAIRE

    Hrabovský, Lukáš

    2015-01-01

    Thesis on Analysis of Competitiveness of CZ TOP TRADE Ltd. mainly deals with the ability to compete with companies, who are on the Czech market in the engineering. To determine competitiveness and competitive advantage, I used both internal company environment and external. I have subsumed here Analysis of internal company environment and also analysis of external company environment like Porters model of five forces, PEST analysis and everything I summerized in the SWOT analysis. I applied m...

  4. Analysis of impact of Internet marketing on visits of the Lenovo Blog CZ

    OpenAIRE

    Ruskovská, Petra

    2013-01-01

    The thesis analyses the impact of Internet marketing tools on visits of the Lenovo Blog CZ, the official blog of the computer manufacturer Lenovo. It focuses evolution of visits of the blog over time, on the impact of social networks and Facebook posts paid promotion on visits. Finally, it observes to what extent the Internet marketing tools impact overall visits of the blog over the observed time.

  5. Lattice sites and stability of implanted Er in FZ and CZ Si

    CERN Document Server

    Wahl, U; Langouche, G; Vantomme, A

    1998-01-01

    We report on the lattice location of $^{167}$Er in Si measured by conversion electron emission channeling. In both FZ and CZ Si, a high fraction of Er (>65%) occupies near-tetrahedral interstitial (T) sites directly following 60 keV room temperature implantation at doses of 6 $\\times 10^{12}$ cm$^{-2}$. For higher doses, the as-implanted near-T fractions of Er visible by emission channeling are smaller, due to the beginning of amorphization. Following the recovery of implantation damage at 600°C, more than 70% of Er is found on near-T sites in both FZ and CZ Si. In FZ Si, Er exhibits a remarkable thermal stability and only prolonged annealing for several hours reduces the near-T fraction. On the other hand, annealing of CZ Si at 900°C for more than 10 minutes results in the majority of Er probes in sites of very low symmetry or disordered surroundings.

  6. Skladování v logistickém systému podniku Foxconn CZ

    OpenAIRE

    Lízálková, Jana

    2009-01-01

    The aim of the Diploma work is to design the storage system inside the logistics system of the company Foxconn CZ. To achieve this goal it is necessary to theoretically define the main terms concerning integrated logistics chain, describe the function and localization of warehouses, describe the most often used warehouse equipment, handling equipment and logistics technologies. Closer acquaintance with company Foxconn CZ allowed us to understand its strategy. Based on collected and analyzed i...

  7. Vliv sociálních medií na společnost Answear cz.

    OpenAIRE

    Zuková, Nela

    2017-01-01

    The dissertation Social Media effect on Answear CZ company focuses on marketing and on-line marketing issues and social media potential in terms of business performance and marketing awareness. In the theoretical part, a marketing and on-line marketing will be defined and described, followed by social media and possibilities of their application in business, such as Facebook, Instagram, Twitter and others. In practical part, a social media strategy of Answear CZ company will be presented, dis...

  8. A new method for welding aluminum alloy LY12CZ sheet with high strength

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    From the viewpoint of welding mechanics, a new welding technology-trailing peening was applied firstly to weld aluminum alloy LY12CZ sheet with high susceptibility to hot cracking. Trailing peening can exert a transverse extrusion strain on the metal in brittle temperature region (BTR) which can compensate for the tensioning strain during the cooling procedure post welding. So, welding hot cracking of LY12CZ sheet can be controlled effectively on the special jig for hot cracking experiment, and the phenomenon of hot cracking can't be found in specimens with large dimensions finally. At the same time, welding with trailing peening can decrease welding distortion caused by longitudinal and transverse shrinkage of weld obviously. Due to strengthening the poor position-weld toe during the process of welding, the residual stress distribution of welded joint is more reasonable. Contrast with conventional welding, mechanical properties such as tensile strength, prolongation ratio and cold-bending angle of welded joint with trailing peening can be improved obviously, and rupture position of welded joint transits from weld toe at conventional welding to weld metal at trailing peening. So, welding with trailing peening can be regarded as a dynamic welding method with low stress, little distortion and hot cracking-free really. As far as theoretical analysis is concerned, the technology of trailing peening can be used to weld the materials with high susceptibility to hot cracking such as LY12CZ and LD10, and solve the welding distortion of thin plate-shell welded structures which contain closed welds such as flange. In addition, the technology of trailing peening has many advantages: simple device, high efficiency, low cost and flexible application which make the welding method have widely applied foreground in the field of aeronautics and aerospace.

  9. COMPARISON OF PROCEDURAL RULES IN DISPUTE RESOLUTION OVER DOMAIN NAMES .GTLD, .CZ AND .EU

    Directory of Open Access Journals (Sweden)

    Tomáš Gongol

    2015-06-01

    Full Text Available The paper is focusing on out-of-court dispute resolution policy and especially includes the ways of so called ADR (Alternative Dispute Resolution used in domain name cases. The aim is to compare procedural rules which are used for solving dispustes over domain names in several levels – generic top level domains (global domains as .com, .net, .org, etc., regional top level domains (european domains .eu and country top level domain (Czech national domain name .cz. For each level exists not only different substantive law but also volume of procedural rules which differs not only in details, but also in the nature of final decision.

  10. Comparison of measurements and simulation results in 300 mm CZ silicon crystal growth

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    A special thermal modeling tool, CrysVUn, which was developed by Crystal Growth Laboratory (CGL) of Fraunhofer Institute of Integrated Systems and Devices Technology in Erlangen of Germany, was used for numerical analysis of growth Interface situation. The heat transportation, argon flow and melt convection have been considered. Cauchy's first and second laws of motion have been the governing partial equations for stress calculation. The measurement results and simulation results were compared and the interface shape and thermal stress distribution during 300 mm Czochralski (CZ) silicon crystal growth with different growth rates were predicted.

  11. First Measurement of Beam-Recoil Observables Cx and Cz in Hyperon Photoproduction

    CERN Document Server

    Bradford, R; Adams, G; Amaryan, M J; Ambrozewicz, P; Anciant, E; Anghinolfi, M; Asavapibhop, B; Asryan, G; Audit, G; Avakian, H; Bagdasaryan, H; Baillie, N; Ball, J P; Baltzell, N A; Barrow, S; Batourine, V; Battaglieri, M; Beard, K; Bedlinskiy, I; Bektasoglu, M; Bellis, M; Benmouna, N; Berman, B L; Bianchi, N; Biselli, A S; Bonner, B E; Bouchigny, S; Boiarinov, S; Branford, D; Briscoe, W J; Brooks, W K; Bültmann, S; Burkert, V D; Butuceanu, C; Calarco, J R; Careccia, S L; Carman, D S; Carnahan, B; Chen, S; Cole, P L; Coleman, A; Collins, P; Coltharp, P; Cords, D; Corvisiero, P; Crabb, D; Crannell, H; Credé, V; Cummings, J P; De Masi, R; De Sanctis, E; De Vita, R; Degtyarenko, P V; Denizli, H; Dennis, L; Deur, A; Dharmawardane, K V; Dickson, R; Djalali, C; Dodge, G E; Donnelly, J; Doughty, D; Dragovitsch, P; Dugger, M; Dytman, S; Dzyubak, O P; Egiyan, H; Egiyan, K S; El Fassi, L; Elouadrhiri, L; Empl, A; Eugenio, P; Fatemi, R; Fedotov, G; Feldman, G; Feuerbach, R J; Forest, T A; Funsten, H; Garçon, M; Gavalian, G; Gilfoyle, G P; Giovanetti, K L; Girod, F X; Goetz, J T; Gonenc, A; Gothe, R W; Griffioen, K A; Guidal, M; Guillo, M; Guler, N; Guo, L; Gyurjyan, V; Hadjidakis, C; Hafidi, K; Hakobyan, H; Hakobyan, R S; Hardie, J; Heddle, D; Hersman, F W; Hicks, K; Hleiqawi, I; Holtrop, M; Hu, J; Huertas, M; Hyde-Wright, C E; Ilieva, Y; Ireland, D G; Ishkhanov, B S; Isupov, E L; Ito, M M; Jenkins, D; Jo, H S; Joo, K; Jüngst, H G; Kalantarians, N; Kellie, J D; Khandaker, M; Kim, K Y; Kim, K; Kim, W; Klein, A; Klein, F J; Klusman, M; Kossov, M; Kramer, L H; Kubarovski, V; Kühn, J; Kuhn, S E; Kuleshov, S V; Lachniet, J; Laget, J M; Langheinrich, J; Lawrence, D; Lima, A C S; Livingston, K; Lu, H Y; Lukashin, K; MacCormick, M; Manak, J J; Marchand, C; Markov, N; McAleer, S; McKinnon, B; McNabb, J W C; Mecking, B A; Mestayer, M D; Meyer, C A; Mibe, T; Mikhailov, K; Mirazita, M; Miskimen, R; Mokeev, V; Moriya, K; Morrow, S A; Moteabbed, M; Muccifora, V; Müller, J; Mutchler, G S; Nadel-Turonski, P; Napolitano, J; Nasseripour, R; Natasha, N; Niccolai, S; Niculescu, G; Niculescu, I; Niczyporuk, B B; Niroula, M R; Niyazov, R A; Nozar, M; O'Rielly, G V; Osipenko, M; Ostrovidov, A I; Park, K; Pasyuk, E; Paterson, C; Philips, S A; Pierce, J; Pivnyuk, N; Pocanic, D; Pogorelko, O I; Polli, E; Popa, I; Pozdniakov, S; Preedom, B M; Price, J W; Prok, Y; Protopopescu, D; Qin, L M; Quinn, B P; Raue, B A; Riccardi, G; Ricco, G; Ripani, M; Ritchie, B G; Ronchetti, F; Rosner, G; Rossi, P; Rowntree, D; Rubin, P D; Sabatie, F; Salamanca, J; Salgado, C; Santoro, J P; Sapunenko, V; Serov, V S; Shafi, A; Sharabyan, Yu G; Shaw, J; Shvedunov, N V; Simionatto, S; Skabelin, A V; Smith, E S; Smith, L C; Sober, D I; Sokhan, D; Spraker, M; Stavinsky, A V; Stepanyan, S S; Stepanyan, S; Stokes, B E; Stoler, P; Strakovsky, I I; Strauch, S; Taiuti, M; Taylor, S; Tedeschi, D J; Thoma, U; Thompson, R; Tkabladze, A; Tkachenko, S I; Todor, L; Tur, C; Ungaro, M; Vineyard, M F; Vlassov, A V; Wang, K; Watts, D P; Weinstein, L B; Weller, H; Weygand, D P; Williams, M; Wolin, E; Wood, M H; Yegneswaran, A; Yun, J; Zana, L; Zhang, J; Zhao, B; Zhao, Z W

    2006-01-01

    Spin transfer from circularly polarized real photons to recoiling hyperons has been measured for the reactions $\\vec\\gamma + p \\to K^+ + \\vec\\Lambda$ and $\\vec\\gamma + p \\to K^+ + \\vec\\Sigma^0$. The data were obtained using the CLAS detector at Jefferson Lab for center-of-mass energies $W$ between 1.6 and 2.53 GeV, and for $-0.85<\\cos\\theta_{K^+}^{c.m.}< +0.95$. For the $\\Lambda$, the polarization transfer coefficient along the photon momentum axis, $C_z$, was found to be near unity for a wide range of energy and kaon production angles. The associated transverse polarization coefficient, $C_x$, is smaller than $C_z$ by a roughly constant difference of unity. Most significantly, the {\\it total} $\\Lambda$ polarization vector, including the induced polarization $P$, has magnitude consistent with unity at all measured energies and production angles when the beam is fully polarized. For the $\\Sigma^0$ this simple phenomenology does not hold. All existing hadrodynamic models are in poor agreement with these r...

  12. Residual Strength of Stiffened LY12CZ Aluminum Alloy Panels with Widespread Fatigue Damage

    Institute of Scientific and Technical Information of China (English)

    Li Zhong; Ge Sen; Lu Guozhi; Chen Li; Ding Huiliang

    2008-01-01

    Experimental and analytical investigations on the residual strength of the stiffened LY12CZ aluminum alloy panels with widespread fatigue damage (WFD) are conducted. Nine stiffened LY12CZ aluminum alloy panels with three different types of damage are tested for residual strength. Each specimen is pre-cracked at rivet holes by saw cuts and subjected to a monotonically increasing tensile load until failure is occurred and the failure load is recorded. The stress intensity factors at the tips of the lead crack and the adjacent WFD cracks of the stiffened aluminum alloy panels are calculated by compounding approach and finite element method (FEM) respectively. The residual strength of the stiffened panels with WFD is evaluated by the engineering method with plastic zone linkup criterion and the FEM with apparent fracture toughness criterion respectively. The predicted residual strength agrees well with the experiment results. It indicates that in engineering practice these methods can be used for residual strength evaluation with the acceptable accuracy. It can be seen from this research that WFD can significantly reduce the residual strength and the critical crack length of the stiffened panels with WFD. The effect of WFD crack length on residual strength is also studied.

  13. Optimalizace nástrojů marketingové komunikace společnosti SKF CZ, a.s.

    OpenAIRE

    Zastoupilová, Cecílie

    2016-01-01

    The content of this thesis is based on the marketing communication in B2B in engineering company SKF CZ, a.s. on the Czech market. First the theory regarding B2B marketing, evaluation of marketing communication, situation analysis and marketing research is introduced. It is followed by situation analysis of the company SKF CZ, a.s. using the 5C method, the description of marketing communication and evaluation of its effectivity based on primary and secondary data. The conclusion consists of a...

  14. Optimalizace nástrojů marketingové komunikace společnosti SKF CZ, a.s.

    OpenAIRE

    Zastoupilová, Cecílie

    2016-01-01

    The content of this thesis is based on the marketing communication in B2B in engineering company SKF CZ, a.s. on the Czech market. First the theory regarding B2B marketing, evaluation of marketing communication, situation analysis and marketing research is introduced. It is followed by situation analysis of the company SKF CZ, a.s. using the 5C method, the description of marketing communication and evaluation of its effectivity based on primary and secondary data. The conclusion consists of a...

  15. Plasma texturing on large-area industrial grade CZ silicon solar cells

    DEFF Research Database (Denmark)

    Davidsen, Rasmus Schmidt; Nordseth, Ørnulf; Boisen, Anja

    2013-01-01

    We report on an experimental study of nanostructuring of silicon solar cells using reactive ion etching (RIE). A simple mask-less, scalable RIE nanostructuring of the solar cell surface is shown to reduce the AM1.5-weighted average reflectance to a level below 1 % in a fully optimized RIE texturing......-mono-crystalline Si. The process was successfully integrated in fabrication of solar cells using only industry standard processes on a Czochralski (CZ) silicon starting material. The resulting cell performance was compared to cells with conventional texturing. For cells, where the nanostructuring was not fully......, and thus holds a significant potential for improvement of the cell performance compared to current industrial standards. The reflectance is shown to remain below that of conventional textured cells also at high angle of incidence. The process is shown to be equally applicable to mono-, multi- and quasi...

  16. Local vibration modes of shallow thermal donors in nitrogen-doped CZ silicon crystals

    Energy Technology Data Exchange (ETDEWEB)

    Inoue, N. [RIAST, Osaka Prefecture University, Sakai, 599-8570 (Japan) and Nitrogen Measurement WG, JEITA, Tokyo, 101-0062 (Japan)]. E-mail: inouen@riast.osakafu-u.ac.jp; Nakatsu, M. [RIAST, Osaka Prefecture University, Sakai, 599-8570 (Japan); Ono, H. [Japan Fine Ceramics Center, Tokyo, 105-0003 (Japan); Nitrogen Measurement WG, JEITA, Tokyo, 101-0062 (Japan)

    2006-04-01

    Local vibration mode (LVM) infrared absorption from shallow thermal donors (STD) composed of nitrogen-oxygen complexes in nitrogen-doped CZ silicon crystals was examined. The samples whose STD concentration had been determined were measured. The sample dependence of the peaks at 810 and 1018cm{sup -1} was similar to that of STD but the estimated concentration was slightly higher. New LVM peaks were found at 855, 973, 982, 1002cm{sup -1} and so on. Their magnitude and sample dependence agreed well with those of STD. Annealing temperature dependence of other samples supported the results. Annealing time dependence of STD concentration at 650 deg. C was examined. STD peaks at 250, 242 and those at 240, 234 and 238cm{sup -1} behaved differently, suggesting the presence of two kinds of STD origin.

  17. Research on Penetration Rules of LY-12cz Thin Sheet Subjected to Rod-Shaped Fragment

    Institute of Scientific and Technical Information of China (English)

    PAN Qing-jun; SONG Li-ru; HUANG Zao-wen; XIONG La-sen

    2007-01-01

    By establishing the finite element models and corresponding calculation methods for the target board and rod-shaped fragment, the penetration effect of the high-velocity rod-shaped fragments' impact on the LY-12cz thin sheet is analyzed by analog calculation.The variation rules of the residual velocity and residual mass of fragments, chock mass and crevasse shape are obtained when the fragment penetrates target board with different incidence velocities and attack angles.Corresponding fitting computation formulas are concluded from the above calculating data.The conclusions are helpful to analyzing the destructivity of fragment and protective ability of aircraft structure.In addition, they can guide the research for battle damage mode and assessment effectively.

  18. Back surface cell structures for reducing recombination in CZ silicon solar cells

    Science.gov (United States)

    King, R. R.; Mitchell, K. W.; Gee, J. M.

    1994-12-01

    Mass-produced terrestrial CZ silicon solar cells are currently entering the domain in which bulk diffusion length is comparable to the cell thickness, so that recombination at the back surface can have a significant effect on device performance. Three manufacturable processes that address the problem of back recombination are examined here: boron diffusion from a deposited doped SiO2, layer; Al-alloyed layers using screen-printed paste; and use of a collecting n* layer on the back interdigitated with the positive electrode. 104 sq cm cells fabricated at Siemens Solar Industries using these back surface structures are characterized by current-voltage, spectral response, photoconductivity decay, and SIMS measurements.

  19. Nutritional Requirements for the Mycelial Biomass and Exopolymer Production by Hericium erinaceus CZ-2

    Directory of Open Access Journals (Sweden)

    Daming Huang

    2007-01-01

    Full Text Available In this work, the effects of medium composition and fermentation parameters on the simultaneous production of mycelial biomass and exopolymer by medicinal mushroom Hericium erinaceus CZ-2 were investigated in shake flask cultures using one-factor-at-a-time method and orthogonal array design. Results showed that the most suitable carbon, nitrogen, mineral sources, and cofactors for the mycelial biomass and exopolymer production were: corn flour combined with 1 % glucose, yeast extract, KH2PO4 and corn steep liquor. The intuitive analysis of orthogonal array design results indicated that the effects of nutritional requirement on the mycelial growth of Hericium erinaceus CZ-2 were in regular sequence of corn flour combined with 1 % glucose > yeast extract > corn steep liquor > KH2PO4, and those on exopolymer production were in the order of corn flour combined with glucose > KH2PO4 > yeast extract > corn steep liquor. The maximal yield of mycelial biomass (16.07 g/L was obtained when the composition of the culture medium was (in g/L: corn flour 30, glucose 10, yeast extract 3, KH2PO4 1, CaCO3 0.5, and 15 mL/L of corn steep liquor; while the maximal exopolymer yield (1.314 g/L was achieved when the composition of medium was (in g/L: corn flour 30, glucose 10, yeast extract 5, KH2PO4 3, CaCO3 0.5, and 15 mL/L of corn steep liquor. In the 15-litre scale-up fermentation, the maximum mycelial biomass yield of 20.50 g/L was achieved using the optimized medium.

  20. The community-driven BiG CZ software system for integration and analysis of bio- and geoscience data in the critical zone

    Science.gov (United States)

    Aufdenkampe, A. K.; Mayorga, E.; Horsburgh, J. S.; Lehnert, K. A.; Zaslavsky, I.; Valentine, D. W., Jr.; Richard, S. M.; Cheetham, R.; Meyer, F.; Henry, C.; Berg-Cross, G.; Packman, A. I.; Aronson, E. L.

    2014-12-01

    Here we present the prototypes of a new scientific software system designed around the new Observations Data Model version 2.0 (ODM2, https://github.com/UCHIC/ODM2) to substantially enhance integration of biological and Geological (BiG) data for Critical Zone (CZ) science. The CZ science community takes as its charge the effort to integrate theory, models and data from the multitude of disciplines collectively studying processes on the Earth's surface. The central scientific challenge of the CZ science community is to develop a "grand unifying theory" of the critical zone through a theory-model-data fusion approach, for which the key missing need is a cyberinfrastructure for seamless 4D visual exploration of the integrated knowledge (data, model outputs and interpolations) from all the bio and geoscience disciplines relevant to critical zone structure and function, similar to today's ability to easily explore historical satellite imagery and photographs of the earth's surface using Google Earth. This project takes the first "BiG" steps toward answering that need. The overall goal of this project is to co-develop with the CZ science and broader community, including natural resource managers and stakeholders, a web-based integration and visualization environment for joint analysis of cross-scale bio and geoscience processes in the critical zone (BiG CZ), spanning experimental and observational designs. We will: (1) Engage the CZ and broader community to co-develop and deploy the BiG CZ software stack; (2) Develop the BiG CZ Portal web application for intuitive, high-performance map-based discovery, visualization, access and publication of data by scientists, resource managers, educators and the general public; (3) Develop the BiG CZ Toolbox to enable cyber-savvy CZ scientists to access BiG CZ Application Programming Interfaces (APIs); and (4) Develop the BiG CZ Central software stack to bridge data systems developed for multiple critical zone domains into a single

  1. Epilithic algae from caves of the Krakowsko-Częstochowska Upland (Southern Poland

    Directory of Open Access Journals (Sweden)

    Joanna Czerwik-Marcinkowska

    2011-01-01

    Full Text Available This paper describes the first study of algae assemblages in 20 caves in the Krakowsko-Częstochowska Upland (Southern Poland, in the period between 2005-2006. The investigations showed mostly on epilithic algae and their subaeric habitats (rock faces within caves and walls at cave entrances. The morphological and cytological variability of algae were studied in fresh samples, in cultures grown on agar plates and in SPURR preparations. A total of 43 algae species was identified, mostly epilithic species and tolerant of low light intensities. The largest group was formed by representatives of the division Chlorophyta (24 species, and then the division Chrysophyta (Heterokontophyta - 17 species, with 9 species belonging to the class Bacillariophyceae, 7 species - Xanthophyceae and 1 species representing the class Eustigmatophyceae. Dinophyta (2 species constituted the last and the smallest group. Among the collected algae, the following species deserve special attention: Thelesphaera alpina, Bracteacoccus minor, Trachychloron simplex, Tetracystis intermedia and T. cf. isobilateralis. The last species was not earlier found in Europe. Identification of species was greatly aided by examination of cell ultrastructure, which provided an array of further features, increasing chances of correct species identification. Furthermore, the studies focused that algae, although usually remaining under dominance of cyanobacteria, excellently differentiate this special area and even enrich it.

  2. Nie-Ewangeliczny model człowieka. Próba wyjaśnienia psychoanalitycznego

    OpenAIRE

    Paprzycki, Marcin

    2013-01-01

    Autor odwołuje się do podstawowych kategorii psychoanalizy Freuda: id, ego oraz superego, a także do zagadnienia lęku, którego konsekwencją jest niemożność przezwyciężenia trudności w sytuacji zagrożenia. Koncepcje te umożliwiają odmienną interpretację zjawisk zniewolenia oraz zbieszenia, będących częścią nie-Ewangelicznego modelu człowieka. W interpretacji zaprezentowanej w tym artykule zjawiska te są wynikiem działalności poszczególnych sfer osobowości jednostki: id, ego oraz superego, któr...

  3. The effect of radiation damage on optical and scintillation properties of BGO crystals grown by the LTG Cz technique

    CERN Document Server

    Gusev, V A; Kupriyanov, I N; Kuznecov, G N; Shlegel, V N; Antsygin, V D; Vasiliev, Y V

    2002-01-01

    BGO crystals grown by the low-thermal-gradient Czochralski technique (LTG Cz) exhibit two distinct types of behavior upon radiation damage and recovery. The crystals termed as of L-type remain colorless after gamma-radiation doses as high as 10 Mrad. As the irradiation dose increases the scintillation light output shows a weak monotonous degradation to 15-25%, saturating at around several hundreds krad doses. The crystals termed as of N-type attain yellow coloration after irradiation. The light output drops abruptly for 35-50% as early as after 1 krad and does not change further on. The present work is devoted to the study of radiation damage effects, self-recovery, optically stimulated recovery and thermo-stimulated current in the L- and N-type BGO crystals produced by LTG Cz.

  4. Vacancies in defect-free zone of point-defect-controlled CZ silicon observed by low-temperature ultrasonic measurements

    Energy Technology Data Exchange (ETDEWEB)

    Yamada-Kaneta, Hiroshi [Atsugi Laboratories, Fujitsu Ltd., Morinosato-Wakamiya, Atsugi 243-0197 (Japan)]. E-mail: kaneta.hiroshi@jp.fujitsu.com; Goto, Terutaka [Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan); Saito, Yasuhiro [Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan); Nemoto, Yuichi [Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan); Sato, Koji [Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan); Kakimoto, Koichi [Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580 (Japan); Nakamura, Shintaro [Center for Low-Temperature Science, Tohoku University, Sendai 980-8577 (Japan)

    2006-10-15

    The low-temperature ultrasonic measurements are performed for the direct observation of the vacancies in Czochralski-grown (CZ-grown) silicon crystal. The elastic softening similar to that we recently found for the floating-zone-grown (FZ-grown) silicon crystals is observed also for the vacancy-rich region of the defect-free zone (DFZ) in the CZ silicon crystal. We further uncover that both of the interstitial-rich region in the DFZ and the region of the ring-like oxidation-induced stacking faults of the same crystal ingot exhibit no such elastic softening of detectable magnitude, confirming our previous conclusion that the defects responsible for the low-temperature softening are the vacancies. We observe how the vacancy concentration in the DFZ varies along the pulling direction.

  5. A note on the connectedness locus of the families of polynomials Pc(z=z n - cz n-j

    Directory of Open Access Journals (Sweden)

    Carlos Arteaga

    2012-03-01

    Full Text Available Let j be a positive integer. For each integer n > j we consider the connectedness locus Mn of the family of polynomials Pc(z = z n - cz n-j, where c is a complex parameter. We prove that lim n→∞ Mn = D in the Hausdorff topology, where D is the unitary closed disk {c;|c|Seja j um inteiro positivo. Para cada inteiro n > j, consideramos o locus conexo Mn da família de polinômios Pc(z = z n - cz n-j, onde c é um parâmetro complexo. Provamos que lim n→∞ Mn = D na topologia de Hausdorff; onde D é o disco unitário {c;|c|<1}.

  6. High-efficiency one-sun photovoltaic module demonstration using solar-grade CZ silicon. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Gee, J.M.

    1996-10-01

    This work was performed jointly by Sandia National Laboratories (Albuquerque, NM) and Siemens Solar Industries (Camarillo, CA) under a Cooperative Research and Development Agreement (CRADA 1248). The work covers the period May 1994 to March 1996. The purpose of the work was to explore the performance potential of commercial, photovoltaic-grade Czochralski (Cz) silicon, and to demonstrate this potential through fabrication of high-efficiency cells and a module. Fabrication of the module was omitted in order to pursue further development of advanced device structures. The work included investigation of response of the material to various fabrication processes, development of advanced cell structures using the commercial material, and investigation of the stability of Cz silicon solar cells. Some important achievements of this work include the following: post-diffusion oxidations were found to be a possible source of material contamination; bulk lifetimes around 75 pts were achieved; efficiencies of 17.6% and 15.7% were achieved for large-area cells using advanced cell structures (back-surface fields and emitter wrap-through); and preliminary investigations into photodegradation in Cz silicon solar cells found that oxygen thermal donors might be involved. Efficiencies around 20% should be possible with commercial, photovoltaic-grade silicon using properly optimized processes and device structures.

  7. High-efficiency one-sun photovoltaic module demonstration using solar-grade CZ silicon. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Gee, J.M.

    1996-10-01

    This work was performed jointly by Sandia National Laboratories (Albuquerque, NM) and Siemens Solar Industries (Camarillo, CA) under a Cooperative Research and Development Agreement (CRADA 1248). The work covers the period May 1994 to March 1996. The purpose of the work was to explore the performance potential of commercial, photovoltaic-grade Czochralski (Cz) silicon, and to demonstrate this potential through fabrication of high-efficiency cells and a module. Fabrication of the module was omitted in order to pursue further development of advanced device structures. The work included investigation of response of the material to various fabrication processes, development of advanced cell structures using the commercial material, and investigation of the stability of Cz silicon solar cells. Some important achievements of this work include the following: post-diffusion oxidations were found to be a possible source of material contamination; bulk lifetimes around 75 pts were achieved; efficiencies of 17.6% and 15.7% were achieved for large-area cells using advanced cell structures (back-surface fields and emitter wrap-through); and preliminary investigations into photodegradation in Cz silicon solar cells found that oxygen thermal donors might be involved. Efficiencies around 20% should be possible with commercial, photovoltaic-grade silicon using properly optimized processes and device structures.

  8. Using the new board game SeCZ TaLK to stimulate the communication on sexual health for adolescents with chronic conditions

    NARCIS (Netherlands)

    Dr. H.A. van der Stege; A. Visser; Dr. S.R. Hilberink; Dr. A.L. van Staa

    2010-01-01

    This study evaluated the feasibility and appreciation of a new educational board game (SeCZ TaLK) that stimulates communication on sexuality and intimate relationships in youth with chronic conditions.

  9. Using the new board game SeCZ TaLK to stimulate the communication on sexual health for adolescents with chronic conditions

    NARCIS (Netherlands)

    Stege, H.A. van der; Staa, A.L. van; Hilberink, S.R.; Visser, A.

    2010-01-01

    This study evaluated the feasibility and appreciation of a new educational board game (SeCZ TaLK) that stimulates communication on sexuality and intimate relationships in youth with chronic conditions.

  10. Development, validity, and normative data study for the 12-word Philadelphia Verbal Learning Test [czP(r)VLT-12] among older and very old Czech adults.

    Science.gov (United States)

    Bezdicek, Ondrej; Libon, David J; Stepankova, Hana; Panenkova, Erika; Lukavsky, Jiri; Garrett, Kelly Davis; Lamar, Melissa; Price, Catherine C; Kopecek, Miloslav

    2014-01-01

    The aim of the present study was to assess the validity of a 12-word Czech version of the Philadelphia (repeatable) Verbal Learning Test [czP(r)VLT-12]. The construction of the czP(r)VLT-12 was modeled after the California Verbal Learning Test (CVLT) and the nine-word Philadelphia (repeatable) Verbal Learning Test [P(r)VLT]. The czP(r)VLT-12 was constructed from a large corpus of old (60-74) and very old (75-96) Czech adults (n = 540). Participants met strict inclusion criteria for the absence of any active or past neurodegenerative disorders and performed within normal limits on other neuropsychological measures. Principal component analysis (PCA) and correlations between czP(r)VLT-12 factor structure and other memory tests were conducted. The czP(r)VLT-12 produced a four-factor solution, accounting for 70.90% of variance, with factors related to: (1) recall, (2) extra-list intrusion errors/recognition foils, (3) interference, and (4) acquisition rate; a solution similar to the CVLT and P(r)VLT. Increasing age resulted in a decline in most czP(r)VLT-12 indices, women outperformed men, and higher education led to higher scores. Memory performance in normal aging did not correlate with instrumental activities of daily living. Low, but significant, correlations were seen with other tests of cognitive performance (divergent validity). Appendices are available that provide normed percentile estimates of individual czP(r)VLT-12 performance stratified by age, education, and gender. In accordance with previous studies, these results demonstrate the usefulness of czP(r)VLT-12 in assessing declarative memory in older adults.

  11. Establishment and biological characteristics of human multiple myeloma cell line CZ-1

    Institute of Scientific and Technical Information of China (English)

    侯健; 林法迎; 张波; 张玲珍; 丁思奇

    2004-01-01

    Background There were only 3 multiple myeloma (MM) cell lines established in China. In this study, we succeeded in establishing a novel MM cell line and analyzed its biological characteristics. Methods Mononuclear cells isolated from the peripheral blood (PB) and bone marrow (BM) of a patient with advanced MM (λ light chain type) were cultured in medium. Cell morphology was analyzed by Wright-Giemsa-staining and cytochemical staining, immunophenotyping by flow cytometry and cytogenetic analysis by chromosome RHG-banding technique. Quantitative fluorescent polymerase chain reaction (PCR) was used to detect Epstein - Barr virus (EBV) DNA. Results The established cell line could survive and proliferate in the presence of feeder cells or conditioned medium. The cells secreted λ light chain and were negative for EBV. The Wright-Giemsa-staining showed typical plasmablast or plasma cell morphology. The cytochemical staining of the cells showed the following reactivity patterns: positive for acid phosphatase, negative for myeloperoxidase. The immunoprofile of the cells was concordant with that of MM cells: positive for CD10, CD28, CD38, CD138, CD56, CD49d, CD44, CD54 and CD58, negative for CD19, CD40, CD95, CD95L, CD34, CD2 and CD5. The cytogenetic analysis showed complex chromosome abnormality of i (1q+), 8q+, 13q+, i (17q), i (18q) and +M. There was no difference in morphology, immunophenotype and cytogenetics between cells from PB and BM.Conclusions An MM cell line secreting λ light chain named CZ-1 was established. The cells from both PB and BM have the same biological characteristics.

  12. Simplified process of manufacture of solar cells with 17% efficiencies using Cz substrata of low resistivity; Monitoramento do processo de fabricacao de celulas solares de silicio de alto rendimento, com passivacao posterior e utilizando silicio Cz de Baixa Resistividade

    Energy Technology Data Exchange (ETDEWEB)

    Stem, N.; Cid, M.; Ramos, C. A.S.; Chenlo, F.

    2008-07-01

    This work describes the fabrication process of solar cells with rear passivated surface using low resistivity Cz silicon of two different manufacturers. the PCD technique allowed to quantify the lifetime, about 0,25 ms (p=2.5{omega}.cm) and 0.35 ms (p=3.3.{omega}.cm) measured at the end of the process, and the implied open-circuit voltages of 652.5mV and 662.6mV, respectively. Efficiencies higher than 20% were predicted for an optical frontal system composed by random texturization with ZnS-MgF{sub 2}. (Author)

  13. Nitrates and phosphates in cave waters of Kraków-Częstochowa Upland, southern Poland.

    Science.gov (United States)

    Różkowski, Jacek; Różkowski, Kazimierz; Rahmonov, Oimahmad; Rubin, Hanna

    2017-09-22

    The paper presents the varied presence of nitrates and phosphates in water from caves located in Częstochowa and Kraków, in urban, strongly anthropogenic conditions, representing the vadose zone of the fissure-karstic-porous massif of Upper Jurassic limestones. Hydrochemical research was carried out by the authors in the Cave on the Stone in Częstochowa in 2012-2015, in caves of the Zakrzówek horst from 1996 to 2002, and in the Dragon's Cave by the research team of J. Motyka in 1995-1998. A number of NO3 and PO4 measurements were performed in waters sampled at these research sites: 20 measurements each of NO3 and PO4 at the Cave on the Stone, 228 of NO3 and 422 of PO4 at Zakrzówek, and 19 each of NO3 and PO4 at the Dragon's Cave. To assess the quality aspect of N and P compounds in waters from the Cave on the Stone, the results of geochemical modelling were processed using PHREEQC software. In cave waters, the oxidised form of nitrogen NO3(-) predominates; in surface waters in the vicinity, unoxidised forms prevail: NH4+, NH3, and NH4SO4(-). Among phosphorus speciations, dissolved forms are dominant: HPO4(2-), H2PO4(-), and the insoluble form CaHPO4; in surface waters, these forms are practically absent. Transformations of water chemistry in 'urban' caves, often centuries old, manifest themselves in, inter alia, the occurrence of multi-ionic waters, including seasonal variations and extremely diversified concentrations, with very high concentrations in subpopulations of NO3 (0.2-485 mg dm(-3)) and P (0.02-6.87 mg dm(-3)). The common presence of NO3 in waters of the phreatic zone of the Częstochowa Upland, an area developed in an agricultural direction, is documented by, inter alia, the exploitation of intakes supplying the city of Częstochowa (10-57 mg dm(-3), 2011) and crenological studies from 2008 to 2015 (NO3, 2-58 mg dm(-3)), at simultaneously low phosphate concentrations (PO4, 0.02-0.24 mg dm(-3)).

  14. Yellow Organic Light-Emitting Devices Based on NPBX Doped CzHQZn%基于NPBX掺杂CzHQZn的黄色有机电致发光器件

    Institute of Scientific and Technical Information of China (English)

    高永慧; 姜文龙; 丁桂英; 丛林; 孟昭晖; 欧阳新华; 曾和平

    2011-01-01

    The performance of yellow organic light emitting devices (OLEDs) based on a no vel material [(E)- 2- (2-(9-ethyl-9H-carbazol-3-yl)vinyl) quinolato- zinc (CzHQZn)]with an emitting/hole- transporting layer as an acceptor was investigated.These devices were fabrica ted as follows: ITO/2T- NATA(30 nm)/NPBX: 25% CzHQZn(x nm)/BCP(10 nm)/Alq3(60- x) nm/LiF(0.5 nm)/Al(x: the thickness of doping layer).The x is 15,20,25,30 nm,respectively, the thickness of Alq3 is correspondingly changed, the total thickness of doping layer and Alq3 is a constant of 60 nm.When x is 20 nm, the thickness of Alq3 is 40 nm, a yellow OLED can be obtained with the CIE coordinates of (0.514 6,0.470 5), the luminance of 1.078 cd/m2 at 4 V.The maximum luminance is 449 0 cd/m2 at 14 V, and the maximum luminous efficiency is 0.98 cd/A.%利用一种既具有空穴传输特性又具有发光特性的新型荧光染料N-乙基咔唑-2-乙烯基-8-羟基喹啉锌[(E)-2-(2-(9-ethyl-9H-carbazol-3-yl)vinyl)quinolato-zinc,CzHQZn]掺杂在NPBX中作为空穴传输层,CzHQZn同时还作为发光的主体,制备了结构为ITO/2T-NATA(30 nm)/NPBX:25%CzHQZn(x nm)/BCP(10 nm)/Alq3(60-x)nm/LiF(0.5 nm)/Al的有机发光器件(x为掺杂发光层的厚度),掺杂发光层的厚度按照15,20,25,30 nm进行变化,相应改变Alq3的厚度,使得这两者的总厚度为60 nm保持不变.当掺杂发光层的厚度是20 nm,Alq3的厚度是40 nm,其他层厚度保持不变时,器件在4 V电压下实现了黄光发射,色坐标为(0.514 6,0.470 5),亮度是1.078 cd/m2.在14 V的电压下,器件最大发光亮度为449 0 cd/m2,最大发光效率为0.98 cd/A.

  15. Utilization of Tabula Rasa to Stabilize Bulk Lifetimes in n-Cz Silicon for High-Performance Solar Cell Processing

    Energy Technology Data Exchange (ETDEWEB)

    LaSalvia, Vincenzo; Jensen, Mallory Ann; Youssef, Amanda; Nemeth, William; Page, Matthew; Buonassisi, Tonio; Stradins, Paul

    2016-11-21

    We investigate a high temperature, high cooling-rate anneal Tabula Rasa (TR) and report its implications on n-type Czochralski-grown silicon (n-Cz Si) for photovoltaic fabrication. Tabula Rasa aims at dissolving and homogenizing oxygen precipitate nuclei that can grow during the cell process steps and degrade the cell performance due to their high internal gettering and recombination activity. The Tabula Rasa thermal treatment is performed in a clean tube furnace with cooling rates >100 degrees C/s. We characterize the bulk lifetime by Sinton lifetime and photoluminescence mapping just after Tabula Rasa, and after the subsequent cell processing. After TR, the bulk lifetime surprisingly degrades to <; 0.1ms, only to recover to values equal or higher than the initial non-treated wafer (several ms), after typical high temperature cell process steps. Those include boron diffusion and oxidation; phosphorus diffusion/oxidation; ambient annealing at 850 degrees C; and crystallization annealing of tunneling-passivating contacts (doped polycrystalline silicon on 1.5 nm thermal oxide). The drastic lifetime improvement during high temperature cell processing is attributed to improved external gettering of metal impurities and annealing of intrinsic point defects. Time and injection dependent lifetime spectroscopy further reveals the mechanisms of lifetime improvement after Tabula Rasa treatment. Additionally, we report the efficacy of Tabula Rasa on n-type Cz-Si wafers and its dependence on oxygen concentration, correlated to position within the ingot.

  16. Delimitation of Areas of Environmental Conflicts on the Background of Geological Conditions, Exemplified by Stary Sącz Commune

    Directory of Open Access Journals (Sweden)

    Gałaś Slávka

    2014-12-01

    Full Text Available Delimitation and characterization of areas of conflict are essential to assess suitability of land for different activities carried out in the field of rational land use. In the paper, delimitation of the conflict areas and conflicts categorization in terms of possibility of their overcoming, the scale of the range and the period of their occurrence exemplified by urban - rural commune Stary Sącz have been presented. The software ArcGIS 10.1, the method of maps superimposing and analysis of interactions between different geoenvironmental factors have been applied to obtain the goal of the investigation. Specific geological structure together with morphological and climatic conditions in Stary Sącz commune create ideal conditions for occurrence of con-flict areas on the background of the geological conditions. Accurate and early recognition of these conflicts - existing and potential ones, is a prerequisite for the environmental risk prevention and elimination of its effects through the proper preparation of planning documents and development plans and programs.

  17. Effectiveness of C5 or C6-Cz assembly in predicting immediate post operative facial nerve deficit.

    Science.gov (United States)

    Verst, Silvia Mazzali; Sucena, Andrea Caivano; Maldaun, Marcos Vinicius Calfat; Aguiar, Paulo Henrique Pires

    2013-10-01

    Intraoperative neurophysiology monitoring (IOM) is a valuable tool in cerebellopontine angle (CPA) surgeries posing risk to the cranial nerves. Transcranial electrical stimulation (TES) for cranial nerves has been performed in the last 7 years, for obtaining the facial nerve motor evoked potential (MEP), using either C3/C4-Cz or C3-C4 (or inverse) stimulating points, which have been correlated with facial nerve functional outcome. Intraoperative surgical and electrophysiological findings were documented prospectively. Patient files were reviewed for clinical data. We studied 23 patients undergoing CPA tumor resection using C5 or C6-Cz montage for TES, and were able to determine the correlation between facial nerve functional outcome and the amplitude drop of facial MEP above 50 %. Patients were evaluated for immediate facial nerve outcome and 6 months after the surgery. Follow-up was performed by structured telephone interviews with local physicians. The sensibility of the studied parameters was 92.8 % for amplitude drop of facial nerve MEP, with positive predictive value of 81.2 %. The absence of changes during IOM has shown a negative predictive value of 100 %. In this series, the used montage was effective in predicting new facial deficit.

  18. Delimitation of Areas of Environmental Conflicts on the Background of Geological Conditions, Exemplified by Stary Sącz Commune

    Science.gov (United States)

    Gałaś, Slávka

    2014-12-01

    Delimitation and characterization of areas of conflict are essential to assess suitability of land for different activities carried out in the field of rational land use. In the paper, delimitation of the conflict areas and conflicts categorization in terms of possibility of their overcoming, the scale of the range and the period of their occurrence exemplified by urban - rural commune Stary Sącz have been presented. The software ArcGIS 10.1, the method of maps superimposing and analysis of interactions between different geoenvironmental factors have been applied to obtain the goal of the investigation. Specific geological structure together with morphological and climatic conditions in Stary Sącz commune create ideal conditions for occurrence of con-flict areas on the background of the geological conditions. Accurate and early recognition of these conflicts - existing and potential ones, is a prerequisite for the environmental risk prevention and elimination of its effects through the proper preparation of planning documents and development plans and programs.

  19. Experience-based teaching of acute medicine for extra motivated medical students and young physicians – 4th Emergency Medicine Course and 6th AKUTNĚ.CZ Congress

    Directory of Open Access Journals (Sweden)

    Petr Štourač

    2014-12-01

    Full Text Available Faculty of Medicine of the Masaryk University (MU, and especially its departments focusing on acute medicine, make an active effort to find and to support extra motivated students by organising courses and congresses with simulation-based learning sessions for them. 4th Emergency Medicine Course (EMC and 6th AKUTNĚ.CZ Congress were organised during 2014. EMC was held during a weekend in mid-April for 80 medical students. The congress was held on 22nd November 2014. A group of more than 700 enthusiastic professionals including physicians, nursing staff and medical students interested in acute medicine met again in Brno at the University Campus Bohunice. We also report the evaluation of effectiveness of different types of sessions, as well as its influence on practical skills and the fixation of memory footprint. The website AKUTNĚ.CZ (www.akutne.cz is freely accessible, and anyone can find and watch all the videos and presentations there.

  20. On The Integral Solutions of Diophantine Equation ax2+by2+cz2=dw2%关于丢番图方程ax2+by2+cz2=dw2的整数解

    Institute of Scientific and Technical Information of China (English)

    张文忠

    2002-01-01

    当丢番图方程ax2+by2+cz2=dw2有整数解x0,y0,z0,w0(w0≠1),(x0,y0,z0,w0)=1时,给出了它满足(x,y,z,w)=1的全部整数解的公式:x=((an2+bm2+cp2)x0-2n(anx0+bmy0+cpz0))/(t), y=((an2+bm2+cp2)y0-2m(anx0+bmy0+cpz0))/(t),z=((an2+bm2+cp2)z0-2p(anx0+bmy0+cpz0))/(t), w=((an2+bm2+cp2)w0)/(t).

  1. Structure of a Questionnaire on Children's Attitudes towards Inclusive Physical Education (CAIPE-CZ [Struktura českého překladu dotazníku "Children's Attitudes toward Inclusive Physical Education" (CAIPE-CZ

    Directory of Open Access Journals (Sweden)

    Julie Wittmannová

    2011-12-01

    Full Text Available BACKGROUND: The process of educating children with and without disabilities together has had many titles in the past, starting with mainstreaming, changing into integration and finally arriving at the current title of inclusion. While inclusion has become widespread, studies aiming to help us understand this phenomenon and variables that influence it have been limited mainly to the study of inclusion as a process and attitudes of teachers towards inclusive physical education. In order to study inclusion we also need to have questionnaires to measure the beliefs of children without disabilities. OBJECTIVE: The purpose of this study was to translate and modify the CAIPE-R instrument, to describe the structure of its components and to compare the structure of CAIPE's Czech version (CAIPE-CZ to the original instrument. METHODS: The original questionnaire, CAIPE-R (Block, 1995, was modified and translated using a standard back translation procedure. Data were collected from 140 girls (mean age 13.12 years, SD = 1.61 and 146 boys (mean age 13.26 years, SD = 1.48 and analyzed using SPSS-PC 19.0 software. RESULTS: The results of principal component factor analysis with Varimax rotation have proven the two component structure of the CAIPE-CZ questionnaire. The first four items are loaded in one factor which was titled as "General beliefs about inclusion in physical education". In contrast with the original CAIPE-R questionnaire, the fifth and sixth items are loaded to the second component together with 4 other items. This component was titled "Beliefs about actual behavior". CONCLUSION: CAIPE-CZ was translated using a standardized procedure and shows a high internal consistency and is also sensitive to detecting differences between groups of children with personal experiences with students with disabilities and those without such experiences. Thus CAIPE-CZ is ready to use for future studies about the attitudes of children towards inclusive physical

  2. Effect of process parameters and crystal orientation on 3D anisotropic stress during CZ and FZ growth of silicon

    Science.gov (United States)

    Drikis, Ivars; Plate, Matiss; Sennikovs, Juris; Virbulis, Janis

    2017-09-01

    Simulations of 3D anisotropic stress are carried out in and oriented Si crystals grown by FZ and CZ processes for different diameters, growth rates and process stages. Temperature dependent elastic constants and thermal expansion coefficients are used in the FE simulations. The von Mises stress at the triple point line is 5-11% higher in crystals compared to crystals. The process parameters have a larger effect on the von Mises stress than the crystal orientation. Generally, the crystal has a higher azimuthal variation of stress along the triple point line ( 8%) than the crystal ( 2%). The presence of a crystal ridge increases the stress beside the ridge and decreases it on the ridge compared with the round crystal.

  3. Effect of Silica Sol on Boric-sulfuric Acid Anodic Oxidation of LY12CZ Aluminum Alloy

    Directory of Open Access Journals (Sweden)

    LIU Hui-cong

    2016-07-01

    Full Text Available Aluminum alloy anodizing coatings were prepared for LY12CZ in the boric-sulfuric acid solution (45g/L sulfuric acid,8g/L boric acid with the addition of 10%,20%,30% (volume fractionsilica sol,with the gradient voltage of 15V. The current and voltage transients of the anodizing process were collected by data collection instrument. The surface morphologies,microstructure and chemical composition of the anodic coatings were characterized by scanning electron microscopy (SEM. The corrosion resistance was examined by neutral salt spray,electrochemical impedance spectroscopy (EIS test and titrating test. The results show that the different concentration of silica sol addition can influence the forming and dissolution of anodizing coatings,improve the compactness smoothness and corrosion resistance during the anodizing process in the boric-sulfuric acid solution.

  4. Diatoms of the genus Gomphonema Ehr. (Bacillariophyceae from a karstic stream in the Krakowsko-Częstochowska Upland

    Directory of Open Access Journals (Sweden)

    Agata Wojtal

    2011-01-01

    Full Text Available This paper presents the results of a floristic study focusing on taxa representing the genus Gomphonema in Kobylanka stream, situated ca 30 km NW of Kraków. Species belonging to the genus Gomphonema Ehr. were very frequently observed diatom taxa in the material studied. Amongst 272 diatom taxa recorded in the studied material, 13 belong to this genus. Some of them are widespread and often found in Poland; others such as Gomphonema micropus Kutz. and G. sarcophagus Greg. are rarely or for the first time reported from the Kraków-Częstochowa Upland. G. brebissonii Reichardt, G. lagerheimii A. Cl. and G. parallelistriatum Lange-Bert. and Reichardt are new to the Polish flora. Identification of the diatom flora was based on light (LM and scanning electron microscopy (SEM. Morphological characters and dimensions of frustules were measured for all taxa reported. Ecological requirements, remarks on distribution, and photographic documentation are also given.

  5. Photovoltaic Small Molecules of TPA(FxBT-T-Cz)3: Tuning Open-Circuit Voltage over 1.0 V for Their Organic Solar Cells by Increasing Fluorine Substitution.

    Science.gov (United States)

    Wang, Qiong; Duan, Linrui; Tao, Qiang; Peng, Wenhong; Chen, Jianhua; Tan, Hua; Yang, Renqiang; Zhu, Weiguo

    2016-11-09

    To simultaneously improve both open-circuit voltage (Voc) and short-circuit current density (Jsc) for organic solar cells, a novel D(A-π-Ar)3 type of photovoltaic small molecules of TPA(FxBT-T-3Cz)3 was designed and synthesized, which contain central triphenylamine (TPA), terminal carbazole (Cz), armed fluorine-substituted benzothiadiazole (FxBT, where x = 1 or 2), and bridged thiophene (T) units. A narrowed ultraviolet-visible absorption and a decreasing highest occupied molecular orbital energy level were observed from TPA(F1BT-T-3Cz)3 to TPA(F2BT-T-3Cz)3 with increasing fluorine substitution. However, the TPA(F2BT-T-3Cz)3/PC71BM-based solar devices showed a rising Voc of 1.01 V and an enhanced Jsc of 10.84 mA cm(-2) as well as a comparable power conversion efficiency of 4.81% in comparison to the TPA(F1BT-T-3Cz)3/PC71BM-based devices. Furthermore, in comparison to the parent TPA(BT-T-3Cz)3 molecule without fluorine substitution, the fluorine-substituted TPA(FxBT-T-3Cz)3 molecules exhibited significantly incremental Voc and Jsc values in their bulk heterojunction organic solar cells, owing to fluorine incorporation in the electron-deficient benzothiadiazole unit.

  6. Komunikační online strategie cestovní agentury Invia.cz, s.r.o. při vstupu na nové trhy

    OpenAIRE

    Pazelskyi, Pavlo

    2009-01-01

    This work is focused on analysing and testing different internet marketing technologies that are usable for online travel agency to promote their website on new markets. As an example, practical work will be done in travel agency Invia.cz. In the end, results will be analysed and recommendation will be given.

  7. 矩阵方程AX+BY+CZ=F广义中心对称最小二乘解%The Generalized Centro-symmetric Solution of a Matrix Equation And Its Optimal Approximation

    Institute of Scientific and Technical Information of China (English)

    张远福; 周金贵; 叶正道

    2012-01-01

    研究矩阵方程AX+BY+CZ=F广义中心对称解,给出了AX+BY+CZ=F的最小二乘广义中心对称解的表达式,导出了AX+BY+CZ=F有广义中心对称解的条件.讨论了在AX+BY+CZ=F最小二乘广义中心对称解集合中求与给定矩阵最佳逼近解.%In this paper, the least-squares solution of the matrix equation AX+BY+CZ=F with respect to Generalized Centro-symmetric Matrices A ,B and C are considered. The general expression of the solution is given and some conditions are derived for the solvability of the matrix equation AX+BY+CZ=F over Generalized Centre— symmetric Matrices. The optimal approximation of the least—squares solution set of AX+BY+CZ=F is provided.

  8. Temperature-dependent Hall effect measurements on Cz-grown silicon pulled from compensated and recycled feedstock materials

    Science.gov (United States)

    Zhang, Song; Modanese, Chiara; Di Sabatino, Marisa; Tranell, Gabriella

    2015-11-01

    In this work, temperature-dependent Hall effect measurements in the temperature range 88-350 K were carried out to investigate the electrical properties of three solar grade p-type Czochralski (Cz) silicon ingots, pulled from recycled p-type multi-crystalline silicon top cuts and compensated solar grade (SoG) feedstock. Material bulk properties including Hall mobility, carrier density and resistivity as functions of temperature were studied to evaluate the influence of compensation and impurities. Recycled top cut replacing poly-silicon as feedstock leads to a more uniform resistivity. In addition, higher concentrations of O and C, give rise to oxygen related defects, which act as neutral scattering centers displaying only a slight influence on the electrical properties at low temperature compared to the dominant compensation effect. The electrical performances of all samples are shown to be strongly dependent on compensation level, especially at the lowest temperature (~88 K). A significant presence of incompletely ionized phosphorus was deduced through the measured carrier density. The temperature-dependent Hall effect measurements fit Klaassen's mobility model very well at low temperatures (silicon, while the deviation at the high temperature probably may be accounted for by the presence of as-grown defects, such as oxygen related defects and phosphorus clusters, which are usually neglected in most mobility models.

  9. Numerical Simulation of Yttrium Aluminum Garnet(YAG) Single Crystal Growth by Resistance Heating Czochralski(CZ) Method

    Energy Technology Data Exchange (ETDEWEB)

    You, Myeong Hyeon; Cha, Pil Ryung [Kookmin University, Seoul (Korea, Republic of)

    2017-01-15

    Yttrium Aluminum Garnet (YAG) single crystal has received much attention as the high power solid-state laser’s key component in industrial and medical applications. Various growth methods have been proposed, and currently the induction-heating Czochralski (IHCZ) growth method is mainly used to grow YAG single crystal. Due to the intrinsic properties of the IHCZ method, however, the solid/liquid interface has a downward convex shape and a sharp tip at the center, which causes a core defect and reduces productivity. To produce YAG single crystals with both excellent quality and higher yield, it is essential to control the core defects. In this study, using computer simulations we demonstrate that the resistance-heating CZ (RHCZ) method may avoid a downward convex interface and produce core defect free YAG single crystal. We studied the effects of various design parameters on the interface shape and found that there was an optimum combination of design parameter and operating conditions that produced a flat solid-liquid interface.

  10. Highly Efficient Sky-Blue Fluorescent Organic Light Emitting Diode Based on Mixed Cohost System for Thermally Activated Delayed Fluorescence Emitter (2CzPN).

    Science.gov (United States)

    Sun, Jin Won; Kim, Kwon-Hyeon; Moon, Chang-Ki; Lee, Jeong-Hwan; Kim, Jang-Joo

    2016-04-20

    The mixed cohosts of 1,3-bis(N-carbazolyl)benzene and 2,8-bis(diphenylphosphoryl)dibenzothiophene have been developed for a highly efficient blue fluorescent oragnic light emitting diode (OLED) doped with a thermally activated delayed fluorescence (TADF) emitter [4,5-di (9H-carbazol-9-yl) phthalonitrile (2CzPN)]. We have demonstrated one of the highest external quantum efficiency of 21.8% in blue fluorescent OLEDs, which is identical to the theoretically achievable maximum electroluminescence efficiency using the emitter. Interestingly, the efficiency roll-off is large even under the excellent charge balance in the device and almost the same as the single host based devices, indicating that the efficiency roll-off in 2CzPN based TADF host is related to the material characteristics, such as low reverse intesystem crossing rate rather than charge imbalance.

  11. First-principles study of new series of quaternary Heusler alloys CsSrCZ (Z=Si, Ge, Sn, P, As, and Sb)

    Energy Technology Data Exchange (ETDEWEB)

    Bouabça, A. [Condensed Matter and Sustainable Development Laboratory (LMCDD), University of Sidi Bel-Abbes, Sidi Bel-Abbes 22000 (Algeria); Rozale, H., E-mail: hrozale@yahoo.fr [Condensed Matter and Sustainable Development Laboratory (LMCDD), University of Sidi Bel-Abbes, Sidi Bel-Abbes 22000 (Algeria); Amar, A. [Condensed Matter and Sustainable Development Laboratory (LMCDD), University of Sidi Bel-Abbes, Sidi Bel-Abbes 22000 (Algeria); Wang, X.T. [School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400044 (China); Sayade, A. [UCCS, CNRS-UMR 8181, Université d’Artois, Faculté des Sciences Jean Perrin, Rue Jean Souvraz, SP 18, 62307 Lens Cedex (France); Chahed, A. [Condensed Matter and Sustainable Development Laboratory (LMCDD), University of Sidi Bel-Abbes, Sidi Bel-Abbes 22000 (Algeria)

    2016-12-01

    The structural, electronic, magnetic, and thermal properties of new quaternary Heusler alloys CsSrCZ (Z=Si, Ge, Sn, P, As, and Sb) were investigated using the full-potential linearized augmented plane wave (FPLAPW) within the generalized gradient approximation (GGA) and GGA plus modified Becke and Johnson as the exchange correlation. The results showed that all Heusler compounds were stable in Type (I) structure. The CsSrCZ (Z=Si, Ge, Sn) compounds had a nearly HM characteristic, and CsSrCZ (Z=P, As, Sb) compounds were true half-metallic (HM) ferromagnets. The strong spin polarization of p orbital for C, Si, Ge, Sn, P, As, and Sb atoms is found to be the origin of ferromagnetic. The half-metallicity is preserved up to a lattice contraction of 3.45%, 1.69%, 1.69%, 7.16%, 7.16%, and 11.2% for all six quaternary Heusler compounds. We also investigated the thermal effects using the quasi-harmonic Debye model. - Highlights: • Electronic, magnetic, and thermodynamic properties of CsSrCZ (Z=Si, Ge, Sn, P, As, and Sb) are investigated. • Until now, there have been no reports theoretical and experimental studies on d{sup 0} half-metals with quaternary structures. • The strong spin polarization of p orbital for C, Si, Ge, Sn, P, As, and Sb atoms is found to be the origin of ferromagnetic. • The half-metallicity is preserved up to a lattice contraction.

  12. Integration of bio- and geoscience data with the ODM2 standards and software ecosystem for the CZOData and BiG CZ Data projects

    Science.gov (United States)

    Aufdenkampe, A. K.; Mayorga, E.; Horsburgh, J. S.; Lehnert, K. A.; Zaslavsky, I.

    2015-12-01

    We have developed a family of solutions to the challenges of integrating diverse data from of biological and geological (BiG) disciplines for Critical Zone (CZ) science. These standards and software solutions have been developed around the new Observations Data Model version 2.0 (ODM2, http://ODM2.org), which was designed as a profile of the Open Geospatial Consortium's (OGC) Observations and Measurements (O&M) standard. The ODM2 standards and software ecosystem has at it's core an information model that balances specificity with flexibility to powerfully and equally serve the needs of multiple dataset types, from multivariate sensor-generated time series to geochemical measurements of specimen hierarchies to multi-dimensional spectral data to biodiversity observations. ODM2 has been adopted as the information model guiding the next generation of cyberinfrastructure development for the Interdisciplinary Earth Data Alliance (http://www.iedadata.org/) and the CUAHSI Water Data Center (https://www.cuahsi.org/wdc). Here we present several components of the ODM2 standards and software ecosystem that were developed specifically to help CZ scientists and their data managers to share and manage data through the national Critical Zone Observatory data integration project (CZOData, http://criticalzone.org/national/data/) and the bio integration with geo for critical zone science data project (BiG CZ Data, http://bigcz.org/). These include the ODM2 Controlled Vocabulary system (http://vocabulary.odm2.org), the YAML Observation Data Archive & exchange (YODA) File Format (https://github.com/ODM2/YODA-File) and the BiG CZ Toolbox, which will combine easy-to-install ODM2 databases (https://github.com/ODM2/ODM2) with a variety of graphical software packages for data management such as ODMTools (https://github.com/ODM2/ODMToolsPython) and the ODM2 Streaming Data Loader (https://github.com/ODM2/ODM2StreamingDataLoader).

  13. First-principles study of new series of quaternary Heusler alloys CsSrCZ (Z=Si, Ge, Sn, P, As, and Sb)

    Science.gov (United States)

    Bouabça, A.; Rozale, H.; Amar, A.; Wang, X. T.; Sayade, A.; Chahed, A.

    2016-12-01

    The structural, electronic, magnetic, and thermal properties of new quaternary Heusler alloys CsSrCZ (Z=Si, Ge, Sn, P, As, and Sb) were investigated using the full-potential linearized augmented plane wave (FPLAPW) within the generalized gradient approximation (GGA) and GGA plus modified Becke and Johnson as the exchange correlation. The results showed that all Heusler compounds were stable in Type (I) structure. The CsSrCZ (Z=Si, Ge, Sn) compounds had a nearly HM characteristic, and CsSrCZ (Z=P, As, Sb) compounds were true half-metallic (HM) ferromagnets. The strong spin polarization of p orbital for C, Si, Ge, Sn, P, As, and Sb atoms is found to be the origin of ferromagnetic. The half-metallicity is preserved up to a lattice contraction of 3.45%, 1.69%, 1.69%, 7.16%, 7.16%, and 11.2% for all six quaternary Heusler compounds. We also investigated the thermal effects using the quasi-harmonic Debye model.

  14. c.z. Roux

    African Journals Online (AJOL)

    A growth law isassodatcd with the non.unity root of the recursive system, so that it can be ... the powerful mathematical theory of linear algebra this ..... who takes the point of view that growth is an open system. If the parameters of (15) would ...

  15. The Search for Maximal Values of min(A,B,C) / gcd(A,B,C) for A^x + B^y = C^z

    CERN Document Server

    Townsend, Arthur R

    2010-01-01

    This paper answers a question asked by Ed Pegg Jr. in 2001: "What is the maximal value of min(A,B,C)/ gcd(A,B,C) for A^x + B^y = C^z with A,B,C >= 1; x,y,z >= 3?" Equations of this form are analyzed, showing how they map to exponential Diophantine equations with coprime bases. A search algorithm is provided to find the largest min/gcd value within a given equation range. The algorithm precalculates a multi-gigabyte lookup table of power residue information that is used to eliminate over 99% of inputs with a single array lookup and without any further calculations. On inputs that pass this test, the algorithm then performs further power residue tests, avoiding modular powering by using lookups into precalculated tables, and avoiding division by using multiplicative inverses. This algorithm is used to show the largest min/gcd value for all equations with C^z <= 2^100.

  16. Znaczenie badań farmakogenetycznych w efektywności leczenia metotreksatem chorych na reumatoidalne zapalenie stawów (część 1

    Directory of Open Access Journals (Sweden)

    Jerzy Świerkot

    2011-01-01

    Full Text Available Metotreksat (MTX jest nadal złotym standardem w leczeniu RZS i jest stosowany na świecie u ponad 0,5 mln chorych na RZS. Obecnie dużą nadzieję wiąże się z indywidualizacją leczenia chorych na RZS. Oprócz czynników klinicznych pomocna w jej ustaleniu może być predyspozycja genetyczna. Polimorfizm genów biorących udział w metabolizmie MTX może wpływać na jego skuteczność i częstość występowania działań niepożądanych. Badania farmakogenetyczne mogą się przyczynić do skuteczniejszej indywidualizacji leczenia chorych na RZS. Istnieje wiele potencjalnych enzymów i białek transportujących występujących w postaciach polimorficznych, które biorą udział w transporcie MTX do komórki, jego metabolizmie i wydalaniu z komórki. Obecnie próbuje się określić przydatność badań polimorfizmów genów do oceny skuteczności leczenia i występowania potencjalnych działań niepożądanych biorąc pod uwagę analizę farmakoekonomiczną. Istnieje szansa, że w przyszłości dzięki indywidualizacji terapii będziemy mogli dostosowywać leczenie (rodzaj leku, dawka leku, droga podania do danego molekularnego podtypu choroby oraz genotypu chorego. Chorzy, u których występują niekorzystne polimorfizmy mogliby być leczeni innymi LMPCH lub już od początku wdrożono by terapię kombinowaną, a w razie niepowodzenia leczenie biologiczne. Chorzy z określonym typem polimorfizmu wymagaliby częstszej kontroli reumatologicznej oceniającej skuteczność i bezpieczeństwo leczenia. Należy jednak pamiętać, że predyspozycje genetyczne są tylko jednymi z czynników wpływających na różnice podczas farmakoterapii u poszczególnych chorych.

  17. The tourism resources and possibilities using of its for development of the town and commune of Nałęczów and the commune of Wojciechów

    Science.gov (United States)

    Świeca, Andrzej; Brzezińska-Wójcik, Teresa

    2009-01-01

    Structural part of the resources of the tourism potential of the town and commune of Nałęczów and the commune of Wojciechów was studied in this paper. In the study, the attractiveness of tourism resources of the communes was assessed based on 48 features grouped into four divisions: sightseeing assets, recreational and special assets, tourist infrastructure and environmental protection. A field survey (listing, query) and a quantitative evaluation of tourist resources, carried out by means of a multidimensional comparative analysis, indicated an appreciable difference in features between the commune of Nałęczów and commune of Wojciechów. The tourist attractiveness index determined for the commune of Nałęczów was 0.695, almost twice as high as the index for the commune of Wojciechów (0.349). In the light of carrying out of investigations, the tourist attractiveness of the commune of Nałęczów results primarily from its environmental (mineral springs, unique flora) and cultural assets (historic monuments) as well as recreational assets (bioclimate, forest complexes, ravines; more than half of the commune's territory is within the Kazimierz Landscape Park) and special assets (angling). The tourism potential of the commune of Wojciechów is primarily determined by its recreational assets (diverse land relief) and special assets (hunting). The commune of Nałęczów is superior with regard to tourist infrastructure and environmental protection. Owing to the diversity of tourist assets, different degrees of tourist infrastructure development and varying quality of the natural environment, various forms of tourism exist in the two communes, i.e. educational tourism (environmental, geotourism, ecotourism, cultural and festival tourism), recreational tourism (agritourism), adventure tourism (walking, cycling, skiing and cross-country skiing) as well as health tourism (health, spa and wellness tourism).

  18. 关于丢番图方程ax2+by2+cz2+dxy+exz+fyz=gw2的整数解%On Integer Solution of Diophantine Equation ax 2+by2+cz2+dxy+exz+fyz=gw2

    Institute of Scientific and Technical Information of China (English)

    文贤武; 詹仕林

    2005-01-01

    当丢番图方程ax2+by2+cz2+dxy+exz+fyz=gw2有整数解x0,y0,z0,w0(w0≠0),(x0,y0,z0,w0)=1时给出它满足(x,y,z,w)=1,w≠0的全部整数解的公式:{x=ηx0-ξm/t,y=ηy0-ξn/t ,z=ηz0-ξp/t,w=ηw0/t其中η=am2+bn2+cp2+dmn+emp+fnp,ξ=2(ax0m+by0n+cz0p)+d(nx0+my0)+e(px0+mz0)+f(py0+nz0),(m,n,p)=1并利用所得结果证明几个推论.

  19. Optical and Infrared Photometry of the Type Ia Supernovae 1991T, 1991bg, 1999ek, 2001bt, 2001cn, 2001cz, and 2002bo

    CERN Document Server

    Krisciunas, K; Phillips, M M; Candia, P; Prieto, J L; Antezana, R; Chassagne, R; Chen, H W; Dickinson, M; Eisenhardt, P R M; Espinoza, J; Garnavich, P M; González, D; Harrison, T E; Hamuy, M; Ivanov, V D; Krzeminski, W; Kulesa, C; McCarthy, P; Moro-Martin, A; Muena, C; Noriega-Crespo, A; Persson, S E; Pinto, P A; Roth, M; Rubenstein, E P; Stanford, S A; Stringfellow, G B; Zapata, A; Porter, A; Wischnjewsky, M; Krisciunas, Kevin; Suntzeff, Nicholas B.; Phillips, Mark M.; Candia, Pablo; Prieto, Jose Luis; Porter, Alain; Wischnjewsky, Marina

    2004-01-01

    We present optical and/or infrared photometry of the Type Ia supernovae SN 1991T, SN 1991bg, SN 1999ek, SN 2001bt, SN 2001cn, SN 2001cz, and SN 2002bo. All but one of these supernovae have decline rate parameters Delta m_15(B) close to the median value of 1.1 for the whole class of Type Ia supernovae. The addition of these supernovae to the relationship between the near-infrared absolute magnitudes and Delta m_15(B) strengthens the previous relationships we have found, in that the maximum light absolute magnitudes are essentially independent of the decline rate parameter. (SN 1991bg, the prototype of the subclass of fast declining Type Ia supernovae, is a special case.) The dispersion in the Hubble diagram in JHK is only ~0.15 mag. The near-infrared properties of Type Ia supernovae continue to be excellent measures of the luminosity distances to the supernova host galaxies, due to the need for only small corrections from the epoch of observation to maximum light, low dispersion in absolute magnitudes at maxim...

  20. Wybrane aspekty wpływu asymetrii funkcjonalnej półkul mózgowych na funkcjonowanie poznawcze oraz emocjonalne człowieka

    Directory of Open Access Journals (Sweden)

    Magdalena Sabiniewicz

    2015-12-01

    Full Text Available Przez wiele lat asymetria półkul mózgowych rozpatrywana była jako wyraźny podział funkcjonalny. W tym dychotomicznym modelu badacze wiązali półkulę lewą wyłącznie z funkcjami werbalnymi, a prawą – ze zdolnościami niewerbalnymi. Podział ten jest jednak niewyczerpujący i zdecydowanie upraszcza tematykę specjalizacji półkul mózgowych. Najnowsze doniesienia wskazują na współpracę i zarazem pewną niezależność międzypółkulową w zakresie kontroli funkcjonowania człowieka. Ponadto podkreśla się, że różnice funkcjonalne istnieją, ale są znacznie subtelniejsze, niż zakładano na początku badań dotyczących tej tematyki. Aby ułatwić zrozumienie istoty asymetrii funkcjonalnej, stworzono modele, które wyjaśniały mechanizm specjalizacji półkulowej i odrębność stylów przetwarzania bodźców. Dane potwierdzające istnienie asymetrii funkcjonalnej półkul pochodzą m.in. z doniesień o jednostronnych uszkodzeniach mózgu, agenezji spoidła wielkiego, zabiegach komisurotomii czy hemisferektomii. Na tej podstawie dokonano analizy funkcjonowania kognitywnego i emocjonalnego pacjentów. Wykryto pewne prawidłowości dotyczące różnic i podobieństw w funkcjonowaniu półkul mózgowych w zakresie percepcji wzrokowej, funkcji werbalnych, praksji, uwagi, pamięci i uczenia się czy funkcji wykonawczych. Jeśli chodzi o lateralizację emocji w mózgu, pojawia się wiele sprzecznych doniesień. Potrzebne są dalsze, dobrze zaprojektowane badania, które pomogą zrozumieć, czy istnieje lateralizacja emocji w mózgu, a jeśli tak, to jakich aspektów funkcjonowania afektywnego ona dotyczy. Niniejsza praca przedstawia przegląd poglądów na wpływ asymetrii półkul mózgowych na funkcjonowanie poznawcze, emocjonalne i behawioralne człowieka.

  1. Partial Factors in Modelling of Steel Structures Reliability According to Eurocodes / Współczynniki Częściowe W Eurokodowym Modelu Niezawodności Konstrukcji Stalowych

    Directory of Open Access Journals (Sweden)

    Stachura Zbigniew

    2015-03-01

    Full Text Available Stan graniczny nośności konstrukcji, projektowanej w tradycyjnym podejściu na podstawie efektów oddziaływań jest oceniany z niezawodnościowego modelu szeregowego. Kalibrację współczynników częściowych do nośności przeprowadza się wówczas na podstawie analizy niezawodności pojedynczego elementu konstrukcji (pręta lub węzła. Eurokod stalowy [4] wprowadził zasady projektowania bazujące na bardziej złożonych modelach nośności niż w [8], gdyż stan graniczny można ocenić na podstawie warunku stateczności technicznej podukładu konstrukcji lub w ogólności, jak przedstawia to warunek (2.1 - na podstawie punktu granicznego na ścieżce równowagi wyznaczonej dla nieidealnego modelu całej konstrukcji. Pojawia się pytanie, czy stosowanie do nośności wyznaczonej na podstawie bardziej złożonych modeli mechaniki konstrukcji współczynników częściowych wyspecyfikowanych do oceny nośności pojedynczych elementów prowadzi do bezpiecznych oszacowań. Kalibracja współczynników częściowych w metodzie stanów granicznych może być dokonana przy różnych założeniach wyjściowych. Model niezawodności i ogólne zasady przyjętego w eurokodach rozdziału docelowego wskaźnika niezawodności na składowe odnoszące się do ustalenia obliczeniowych oddziaływań i ich kombinacji oraz do ustalania nośności obliczeniowej zostały podane w eurokodzie [1]. W artykule przedstawiono zagadnienia dotyczące przyjęcia współczynników częściowych do nośności układu lub podukładu konstrukcyjnego. Opisano eurokodową procedurę wykorzystującą wyniki badań doświadczalnych do kalibracji współczynników częściowych do nośności.

  2. Miłosz’s Response to Brzozowski. On Człowiek wśród skorpionów... [Man among Scorpions...] and More

    Directory of Open Access Journals (Sweden)

    Sylwia Panek

    2012-01-01

    Full Text Available The aim of the author of the article is to investigate Miłosz’s relation to Stanisław Brzozowski. Proceeding from the interpretation of Miłosz’s Człowiek wśród skorpionów..., and diagnosing his personal motivation for turning to Brzozowski’s works in 1963, the author investigates the avenues of dialogue between Miłosz and Brzozowski, and their unsys­tematically expresses common points. The article, thus, presents various stages of influence of Brzozowski’s work and ideas on Miłosz: from the 1930s, when Miłosz was inspired by Brzozowski’s left-wing fanaticism, through the common opposition against anti-intellectualism and the Polish identity understood as a set of Romantic symbols and gestures, up to the fascination with Russian culture and Marxism. The deepest affinity of both authors seems to be the attitude of anthropocentrism, identified and exposed by Miłosz himself, and understood as hostility towards nature and belief in nature’s determinism, but also as a formula that gives coherence to the philosophical themes, found in both authors’ work, which are thought to be polarised and incompatible. In the conclusion, the author of the article states that positioning himself with reference to Brzozowski was, for Miłosz, a tool of self-creation, an attempt to control the reception and interpretation of his own work, and to place Miłosz in a separate and exceptional position, akin to the position of Brzozowski, the extraordinary and unrecognized philosopher and critic of Polish early modernism.

  3. Low level of genetic variation within Melica transsilvanica populations from the Kraków-Częstochowa Upland and the Pieniny Mts revealed by AFLPs analysis

    Directory of Open Access Journals (Sweden)

    Magdalena Szczepaniak

    2011-01-01

    Full Text Available Fragmented distribution, the breeding system and effects of genetic drift in small-size populations occurring at edge of the species range play an important role in shaping genetic diversity of such a species. Melica transsilvanica is a plant rare in the flora of Poland, where it reaches the northern limit of its continuous range. Amplified Fragment Length Polymorphism (AFLP DNA profiling method was applied to measure genetic diversity among and within populations of M. transsilvanica. Additionally, genetic relationships between M. transsilvanica and Melica ciliata, two closely related species, were explored. A total of 68 plants from 7 populations of M. transsilvanica and 24 plants from 2 populations of M. ciliata, collected in Poland and outside it, were analyzed. Using 294 AFLP fragments from 3 primer combinations, accessions were grouped into two major clusters associating with M. ciliata and M. transsilvanica, respectively. Further, two subclusters, corresponding to the samples collected from the Pieniny Mts and from the Kraków - Częstochowa Upland were clearly distinguished within the M. transsilvanica group. The hierarchical AMOVA exhibited significant genetic distinction between these geographic regions (60.89%, p < 0.001. The obtained results showed that the most genetic diversity resided between the populations of M. transsilvanica (86.03% while considerably lower genetic variation was found within the populations (13.97%, which is consistent with the results reported for self-plants. The low level of AFLP genetic variation of M. transsilvanica can be caused by the geographic isolation of populations, which preserves the dominant self-mating breeding system of the species. Individual populations of M. transsilvanica are characterized by isolated gene pools differing by a small number of loci.

  4. CZ: Multiple Inheritance Without Diamonds

    Science.gov (United States)

    2008-12-01

    be solved by allowing renaming (e.g., Eiffel [24]) or by linearizing the class hierarchy [33, 32]. However, there is still no satisfactory solution to...desirable semantics; it is supported in languages such as Scala, Eiffel , and C++ (the last through virtual inheritance) [28, 24, 18]. Next, diamond...Languages that attempt to solve the object initialization problem include Eiffel [24], C++ [18], Scala [28] and Smalltalk with stateful traits [8

  5. Analýza genové exprese metodami sekvenace nové generace

    OpenAIRE

    Bláhová, Monika

    2014-01-01

    1 Abstract The main task of this work is create review today's available methods for gene expression analysis, introduce advantages and disadvantages of this metods and compare them. Nowadays sequencing is one of the most usable molecular methods. Sequencing methods are divided to three groups, a first generation sequencing, a second generation sequencing and a third generation sequencing. The most useful are the second generation sequencing. However, the third generation sequencing have a bi...

  6. Components/factors of the Czech version of the Physical Self Perception Profile (PSPP-CZ among high school students [Komponenty/faktory české verze dotazníku tělesného sebepojetí (PSPP-CZ u středoškolských studentů

    Directory of Open Access Journals (Sweden)

    Vlastimil Kudláček

    2010-12-01

    Full Text Available BACKGROUND: The physical self has been widely investigated as a determinant of exercise behaviors as well as a contributor to mental health and well being (Fox, 1997. Self esteem has been generally accepted as an important mediator of exercise and self esteem (Fox, 2000; Sonstroem, 1997. Understanding self development processes has increased in importance as self esteem and self perception components have become increasingly valued in educational, clinical and community health programs (Ferreira & Fox, 2008. In order to examine the relationships between various levels of physical activities and self perception we need to use standardized instruments to measure physical self perception among Czech teenagers. OBJECTIVE: The purpose of this study was to analyse the structure of the translated PSPP-CZ questionnaire among the population of high school students by finding components of PSPP-CZ using principal component analysis. The Physical Self Perception Profile (PSPP has never been used in the CZ population before. METHODS: Participants were high school students from five schools representing three kinds of high schools in the Czech Republic. Of these participants, 666 were boys and 403 were girls. The average age of the participants was 17.00 (± 1.34 in boys and 16.63 (± 1.39 in girls. Participants received a test battery containing a Czech version of PSPP (Fox, 1990. PSPP has four subscales: (a sports competence – SPORT; (b attractiveness of the figure – BODY; (c physical strength and musculature – STRENGTH; and (d physical conditioning and exercise – CONDITION (Fox, 1990. RESULTS: Data were analyzed using SPSS PC 11.0. Cronbach Alpha, representing the internal consistency measure consisted of: (a sport subscale (males = .86, females = .86; (b physical condition subscales (males = .82, females = .85; (c attractiveness of figure subscales (males = .78, females = .88; and (d strength subscale (males = .87, females = .85. Initially we

  7. Forecasting Method of Aircraft LY12CZ Structure Corrosion Damage in Airport Environment%机场环境下飞机LY12CZ结构腐蚀损伤预测方法研究

    Institute of Scientific and Technical Information of China (English)

    刘治国; 边若鹏; 蔡增杰

    2011-01-01

    依据LY1 2CZ材料的EXCO溶液浸泡加速腐蚀试验数据、飞机LY 12CZ构件在机场环境下的真实腐蚀损伤数据以及腐蚀损伤等效原则和当量关系原理,获得了该材料在2种环境下腐蚀的当量因子均值(α) =0.023 6,构建了LY12CZ材料于EXCO溶液中浸泡腐蚀的神经网络腐蚀深度预测模型.在此基础上提出了利用所建的神经网络模型和所获的当量因子进行机场环境下飞机用LY12CZ材料腐蚀损伤预测研究方法.预测结果表明该方法有效、可行.%Accelerated corrosion test of LY12CZ aluminum alloy was carried out in EXCO solution and the corrosion depth of the alloy was measured. Further more corrosion damage of aircraft LY12CZ structure with different service periods in true airport environment was counted. Based on the corrosion damage data of the two different environments and the corrosion damage equivalent relation, the equivalent relation factor between the EXCO solution and true airport environment was found. Then the neural network model based on EXCO solution test data with the BP algorithm was established. The corrosion damage of aircraft LY12CZ structure in the true airport environment was forecasted with the built model and the equivalent relation factor was found to be 0.023 6 under the two environments. The prediction results showed that the forecasting method is effective and applicable for LY12CZ corrosion damage estimation.

  8. Partial Factors in Modelling of Steel Structures Reliability According to Eurocodes / Współczynniki Częściowe W Eurokodowym Modelu Niezawodności Konstrukcji Stalowych

    Science.gov (United States)

    Stachura, Zbigniew; Giżejowski, Marian

    2015-03-01

    Problems associated with the estimation of partial factors for structural systems, subsystems and buckling of individual elements are dealt with in this paper. Aspects related to resistance factors for the section resistance and member resistance are in particular referred to. The Eurocode's approach of resistance partial factor calibration assisted by experimental data for subframe systems is also summarized. Stan graniczny nośności konstrukcji, projektowanej w tradycyjnym podejściu na podstawie efektów oddziaływań jest oceniany z niezawodnościowego modelu szeregowego. Kalibrację współczynników częściowych do nośności przeprowadza się wówczas na podstawie analizy niezawodności pojedynczego elementu konstrukcji (pręta lub węzła). Eurokod stalowy [4] wprowadził zasady projektowania bazujące na bardziej złożonych modelach nośności niż w [8], gdyż stan graniczny można ocenić na podstawie warunku stateczności technicznej podukładu konstrukcji lub w ogólności, jak przedstawia to warunek (2.1) - na podstawie punktu granicznego na ścieżce równowagi wyznaczonej dla nieidealnego modelu całej konstrukcji. Pojawia się pytanie, czy stosowanie do nośności wyznaczonej na podstawie bardziej złożonych modeli mechaniki konstrukcji współczynników częściowych wyspecyfikowanych do oceny nośności pojedynczych elementów prowadzi do bezpiecznych oszacowań. Kalibracja współczynników częściowych w metodzie stanów granicznych może być dokonana przy różnych założeniach wyjściowych. Model niezawodności i ogólne zasady przyjętego w eurokodach rozdziału docelowego wskaźnika niezawodności na składowe odnoszące się do ustalenia obliczeniowych oddziaływań i ich kombinacji oraz do ustalania nośności obliczeniowej zostały podane w eurokodzie [1]. W artykule przedstawiono zagadnienia dotyczące przyjęcia współczynników częściowych do nośności układu lub podukładu konstrukcyjnego. Opisano eurokodową procedur

  9. ‘Devoção mariana oficial na Polônia (N.S. do Monte Claro, Częstochowa e no Brasil (N.S. da Aparecida’ – reflexões comparativas

    Directory of Open Access Journals (Sweden)

    Renata Siuda-Ambroziak

    2015-01-01

    Full Text Available O artigo pretende apresentar reflexões comparativas entre os dois catolicismos: polonês e brasileiro por meio da tentativa da análise concisa de duas devoções marianas oficiais: polonesa (Nossa Senhora do Monte Claro em Częstochowa e brasileira (Nossa Senhora da Aparecida. A hipótese do autor é que, apesar das diferenças óbvias entre os dois países, as duas sociedades e as duas Igrejas, existem inegáveis semelhanças entre a Polônia e o Brasil no campo da devoção mariana e religiosidade popular.

  10. Arsenate reduction and methylation in the cells of Trichoderma asperellum SM-12F1, Penicillium janthinellum SM-12F4, and Fusarium oxysporum CZ-8F1 investigated with X-ray absorption near edge structure

    Energy Technology Data Exchange (ETDEWEB)

    Su, S.M., E-mail: shimingsu@163.com [Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture, Beijing (China); Zeng, X.B., E-mail: zengxb@ieda.org.cn [Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture, Beijing (China); Li, L.F.; Duan, R.; Bai, L.Y. [Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture, Beijing (China); Li, A.G.; Wang, J.; Jiang, S. [Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai (China)

    2012-12-15

    Highlights: Black-Right-Pointing-Pointer Three fungal strains are capable of As(V) reduction and methylation. Black-Right-Pointing-Pointer As(V) reduction might be more easily processed than the methylation in fungal cells. Black-Right-Pointing-Pointer As sequestration and speciation transformation might be the detoxification processes. - Abstract: Synchrotron radiation-based X-ray absorption near edge structure (XANES) was introduced to directly analysis chemical species of arsenic (As) in the cells of Trichoderma asperellum SM-12F1, Penicillium janthinellum SM-12F4, and Fusarium oxysporum CZ-8F1 capable of As accumulation and volatilisation. After exposure to As(V) of 500 mg L{sup -1} for 15 days, a total of 60.5% and 65.3% of the accumulated As in the cells of T. asperellum SM-12F1 and P. janthinellum SM-12F4, respectively, was As(III), followed by 31.3% and 32.4% DMA (dimethylarsinic acid), 8.3% and 2.3% MMA (monomethylarsonic acid), respectively. However, for F. oxysporum CZ-8F1, 54.5% of the accumulated As was As(III), followed by 37.8% MMA and 7.7% As(V). The reduction and methylation of As(V) formed As(III), MMA, and DMA as the primacy products, and the reduction of As(V) might be more easily processed than the methylation. These results will help to understanding the mechanisms of As detoxification and its future application in bioremediation.

  11. Model My Watershed and BiG CZ Data Portal: Interactive geospatial analysis and hydrological modeling web applications that leverage the Amazon cloud for scientists, resource managers and students

    Science.gov (United States)

    Aufdenkampe, A. K.; Mayorga, E.; Tarboton, D. G.; Sazib, N. S.; Horsburgh, J. S.; Cheetham, R.

    2016-12-01

    The Model My Watershed Web app (http://wikiwatershed.org/model/) was designed to enable citizens, conservation practitioners, municipal decision-makers, educators, and students to interactively select any area of interest anywhere in the continental USA to: (1) analyze real land use and soil data for that area; (2) model stormwater runoff and water-quality outcomes; and (3) compare how different conservation or development scenarios could modify runoff and water quality. The BiG CZ Data Portal is a web application for scientists for intuitive, high-performance map-based discovery, visualization, access and publication of diverse earth and environmental science data via a map-based interface that simultaneously performs geospatial analysis of selected GIS and satellite raster data for a selected area of interest. The two web applications share a common codebase (https://github.com/WikiWatershed and https://github.com/big-cz), high performance geospatial analysis engine (http://geotrellis.io/ and https://github.com/geotrellis) and deployment on the Amazon Web Services (AWS) cloud cyberinfrastructure. Users can use "on-the-fly" rapid watershed delineation over the national elevation model to select their watershed or catchment of interest. The two web applications also share the goal of enabling the scientists, resource managers and students alike to share data, analyses and model results. We will present these functioning web applications and their potential to substantially lower the bar for studying and understanding our water resources. We will also present work in progress, including a prototype system for enabling citizen-scientists to register open-source sensor stations (http://envirodiy.org/mayfly/) to stream data into these systems, so that they can be reshared using Water One Flow web services.

  12. Intra-Eu Capital Movements: Ten Years Of Poland’S Experiences As An Eu Member In The Global Context / Wewnątrz-Unijne Przepływy Kapitałowe: Doświadczenia 10 Lat Członkostwa Polski W Unii Europejskiej

    Directory of Open Access Journals (Sweden)

    Witkowska Janina

    2015-08-01

    Full Text Available Celem artykułu jest analiza i ocena konsekwencji ustanowienia swobodnego przepływu kapitału między Polską i innymi krajami członkowskimi Unii Europejskiej (EU z perspektywy dziesięciu lat jej członkostwa w UE. Szczególną uwagę zwrócono na rolę wewnątrz-unijnych bezpośrednich inwestycji zagranicznych (BIZ napływających do polskiej gospodarki. Rozszerzenie UE w 2004r. spowodowało poważne prawne i ekonomiczne procesy dostosowawcze w nowych krajach członkowskich. Ustanowienie swobodnego przepływu kapitału, jako jednej z czterech tzw. swobód w ramach jednolitego rynku europejskiego, było koniecznością między UE15 i nowymi krajami członkowskimi. Nowe kraje członkowskie UE musiały tego dokonać w stosunkowo krótkim okresie. Ustanowienie swobody przepływu kapitału między Polską a resztą UE nie tylko nie spowodowało zakłóceń w jej gospodarce, ale przyczyniło się do stabilizacji sfery ekonomicznej i społecznej. Wewnątrz-unijne BIZ ułatwiają procesy restrukturyzacji polskiej gospodarki. Rola inwestorów zagranicznych w sferze zatrudnienia i handlu zagranicznego jest znacząca dla stabilizacji sytuacji ekonomicznej Polski. Zaangażowanie inwestorów zagranicznych w procesy innowacyjne, chociaż rosnące, nie zmienia radykalnie pozycji Polski w tym obszarze. Według unijnych rankingów innowacyjności, Polska należy do grupy raczej słabych innowatorów.

  13. 基于SPH方法的LY12-CZ铝合金平板鸟撞模型%Model of bird impact on LY12-CZ aluminum alloy plate based on SPH

    Institute of Scientific and Technical Information of China (English)

    张鼎逆; 上官倩芡; 刘富

    2016-01-01

    To obtain the accurate analysis model of bird impact for aircraft structures,the numerical model of bird impact on LY1 2-CZ aluminum alloy flat plates was established based on the explicit finite element code of PAM-CRASH.Johnson-Cook equation was adopted to describe the constitutive model of LY1 2-CZ aluminum alloy.The stress-strain curves at 4 different strain rates of LY1 2-CZ were measured by dynamic tensile tests using electronic universal testing machine and split Hopkinson tensile bar (SHTB),and four constants in Johnson-Cook equation were fitted.Bird was modeled by smooth particle hydrodynamics (SPH ) method,and Monaghan EOS equation was introduced to simulate the bird material.Two corresponding bird impact experiments were implemented,and the strains of testing points were obtained.The calculation results were compared with the bird impact experimental results.The results show that the good agreement between numerical calculation and experimental results is obtained, which illuminates the bird constitutive model,the aluminum alloy constitutive model and the calculation method for high speed are reasonable and reliable.%为了得到更准确的飞机鸟撞分析模型,基于显式有限元分析程序PAM-CRASH建立了LY12-CZ铝合金平板的鸟撞数值模型.采用Johnson-Cook方程表述LY12-CZ材料的本构.LY12-CZ铝合金在4种不同应变率下的应力应变曲线通过电子万能试验机和分离式霍普金森拉杆(SHTB)拉伸试验获得,对曲线进行拟合得到Johnson-Cook 方程中的4个常数.基于光滑粒子流体动力学(SPH)方法建立了鸟体模型,引入Monaghan EOS 方程来描述鸟体材料.针对所建立的鸟撞数值计算模型,开展相对应的鸟撞试验,获得测试点的应变,并将数值计算结果和试验结果进行对比.结果表明:计算应变与试验测得的应变吻合较好,验证了鸟体、铝合金本构模型以及鸟体高速冲击计算分析模型的合理性、可靠性.

  14. 三种有机物对LY12CZ铝合金在酸性溶液中的缓蚀行为研究%Three Organic Corrosion Inhibitors on LY12CZ Aluminum Alloy in Acid Solution

    Institute of Scientific and Technical Information of China (English)

    刘建华; 盛华; 李明; 李松梅; 于美

    2011-01-01

    The inhibiting effect of three organic compounds on the corrosion of LY12CZ aluminum alloy in 0. 5M H2SO4 solution was investigated. The organic compounds are 2-mercaptobenzoxazole (MBIH), benzotriazole (BTA) and 8-hydroxy-quinoline(8Q). The inhibiting effect to the corrosion dynamics of LY12CZ aluminum alloy in 0. 5M H2SO4 solution was evaluated by using mass loss method and the corrosion morphology was observed by using optical microscopy (OM), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS). Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization were used to study the inhibiting mechanism. The results show that MBIH, BTA and 8Q all provide anti-corrosion protection for LY12CZ aluminum alloy by forming a thin organic layer of insoluble complexes on the surface of the alloy. Their in-hibitive properties are given by the following order: MBIH>BTA>8Q. MBIH and BTA provide anti-corrosion protection by absorbing selectively on the corrosion active intermetallic zones and suppressing the cathode processes of corrosion reaction. The whole surface of the alloy was absorbed by 8Q to form chelate 8Q complexes, but the absorbed layer was destroyed as the anode dissolution.%本工作选取了2-巯基苯并噻唑(MBIH)、苯并三氮唑(BTA)和8-羟基喹啉(8Q)等几种典型的缓蚀剂,研究了其对LY12CZ铝合金在酸性溶液中的缓蚀效果及机理.通过腐蚀失重法研究了三种缓蚀剂对LY12CZ铝合金在酸性溶液中腐蚀动力学的影响.利用光学显微镜(OM)、场发射扫描电子显微镜(FE-SEM)及能谱(EDS)等对合金组织和腐蚀形貌进行观察;利用动电位极化、交流阻抗谱(EIS)等研究了铝合金在含有这三种缓蚀剂溶液中的电化学特性,并对其缓蚀机理进行了探讨.结果表明:三种有机物均能在酸性溶液中对LY12CZ铝合金起到缓蚀作用;缓蚀效果MBIH>BTA>8Q.MBIH和BTA能够选择性地吸附在LY12CZ铝合金表面S相残

  15. 激光熔铸修理航空铝合金LY12CZ组织与疲劳性能%Microstructure and fatigue properties of aviation aluminum alloy LY12CZ repaired by laser melt casting

    Institute of Scientific and Technical Information of China (English)

    卢长亮; 胡芳友; 黄旭仁; 崔爱勇; 胡滨; 付鹏飞

    2011-01-01

    Corrosion damaged aluminum alloy (LY12CZ) was repaired by laser melt casting with Al based rare-earth alloy powder. The microstructure of melt casting zone was investigated, and comparison test of fatigue life was carried out between repaired specimens and no-damage specimens. It is found that fine equiaxed crystals distribute in the casting layer and the crystal size is about 3-4 pjn. The columnar crystals, axial direction size of which reaches 30-40 μm, exist near the substrate with its crystallographic axis perpendicular to the interface. The fatigue life of specimens repaired by laser melt casting is much shorter than that of no-damage specimens, due to the origin of crack resulting from flaws in the casting layer; the columnar grains in the bottom of casting zone are easy to crack under the tensile stress; the residual stress after melt casting accelerates the initiation and growth of crack.%为修复腐蚀损伤的飞机铝合金构件,使用铝基稀土合金粉末,对预置模拟腐蚀损伤的铝合金(LY12CZ)试样进行激光熔铸修复,分析试样修复后熔铸层的显微组织结构,并对熔铸修理试样和无损试样进行疲劳对比试验.结果表明:熔铸层内为尺寸较小的等轴晶粒,尺寸为3~4 μm;靠近熔铸界面处为具有定向凝固特征的柱状枝晶,晶轴垂直于界面,轴向尺寸可达30~40 μm;激光熔铸修复的试样疲劳性能较完好试样大幅下降,主要原因为熔铸层内的熔铸加工缺陷形成了裂纹源,熔铸层底部的柱状枝晶具有较强的应力开裂倾向,熔铸残余拉应力加速裂纹的萌生与扩展.

  16. 热原子层沉积氧化铝对硅的钝化性能及热稳定性%Passivation and stability of thermal atomic layer deposited Al2O3 on CZ-Si

    Institute of Scientific and Technical Information of China (English)

    何悦; 窦亚楠; 马晓光; 陈绍斌; 褚君浩

    2012-01-01

    原子层沉积氧化铝已经成为应用于钝化发射极和背面点接触(PERC)型晶硅太阳能电池优异的钝化材料.对于基于丝网印刷技术的太阳能电池,钝化材料的钝化效果及其热稳定性是非常重要的.本文在太阳能级硅片上用热原子层沉积设备制备了20nm和30nm的氧化铝,少子寿命测试结果显示初始沉积的氧化铝薄膜具有一定的钝化效果,在退火后可达到100μs以上,相当于硅表面复合速度小于100cm/s.经过制备传统晶硅太阳能电池的烧结炉后,少子寿命能够保持在烧结前的一半以上,可应用于工业PERC型电池的制备.通过电子显微镜观察到了较厚的氧化铝薄膜有气泡,解释了30nm氧化铝比20nm氧化铝钝化性能和稳定性更差的异常表现.%Atomic layer deposited (ALD) aluminum oxide (Al2O3) has been known as an almost-perfect candidate of passivation dielectric layer for PERC-type c-Si solar cell. Its passivation performance and thermal stability are key issues for industrial PERC c-Si solar cell based on screen-printed technology. In this paper, 20 nm and 30nm Al2O3 films are synthesized on the solar grade CZ-Si by thermal atomic layer deposition. The results show that the effective lifetime can reach 100 μs for CZ-Si after annealing and is kept a half after the sintering process in the industrial beltline furnace, and the materials can be used in PERC-type solar cell. The SEM image demonstrates that the blisters occur in a thicker Al2O3 film, which explains why the passivation and thermal stability of 30 nm film are inferior to those of 20 nm film.

  17. Structural and photoluminescence studies on europium-doped lithium tetraborate (Eu:Li2B4O7) single crystal grown by microtube Czochralski (μT-Cz) technique

    Science.gov (United States)

    A, Kumaresh; R, Arun Kumar; N, Ravikumar; U, Madhusoodanan; B, S. Panigrahi; K, Marimuthu; M, Anuradha

    2016-05-01

    Rare earth europium (Eu3+)-doped lithium tetraborate (Eu:Li2B4O7) crystal is grown from its stoichiometric melt by microtube Czochralski pulling technique (μT-Cz) for the first time. The grown crystals are subjected to powder x-ray diffraction (PXRD) analysis which reveals the tetragonal crystal structure of the crystals. UV-vis-NIR spectral analysis is carried out to study the optical characteristics of the grown crystals. The crystal is transparent in the entire visible region, and the lower cutoff is observed to be at 304 nm. The existence of BO3 and BO4 bonding structure and the molecular associations are analyzed by Fourier transform infrared (FTIR) spectroscopy. The results of excitation and emission-photoluminescence spectra of europium ion incorporated in lithium tetraborate (LTB) single crystal reveal that the observations of peaks at 258, 297, and 318 nm in the excitation spectra and peaks at 579, 591, 597, 613, and 651 nm are observed in the emission spectra. The chromaticity coordinates are calculated from the emission spectra, and the emission intensity of the grown crystal is characterized through a CIE 1931 (Commission International d’Eclairage) color chromaticity diagram. Project supported by the Department of Science and Technology-Science and Engineering Research Board (Grant No. SR/S2/LOP-0012/2011), the Government of India for Awarding Major Research Project, the University Grants Commission-Department of Atomic Research-Consortium for Scientific Research (Grant No. CSR-KN/CSR-63/2014-2015/503), and the Kalpakkam and Indore, India.

  18. High resolution studies of gully erosion, sedimentation processes, and land use changes since the late Pleistocene and future trajectories in the Kazimierz Dolny area (Nałęczów Plateau, SE-Poland)

    Science.gov (United States)

    Dotterweich, M.; Rodzik, J.; Zgłobicki, W.; Schmitt, A.; Schmidtchen, G.; Bork, H. R.

    2012-04-01

    This paper presents the results of 30 years of research on the Doły Podmularskie gully system (catchment 0.35 km2 in size), which is situated in the south-western part of the loess-covered Nałęczów Plateau in SE-Poland. Detailed topographic, stratigraphic and pedologic investigations, and monitoring of a tributary gully (gully area: 0.7 ha, catchment: 2.5 ha), combined with historical, archaeological and palaeoecological records reveal a long and complex history in terms of the temporal and spatial extent and the impact of land use on gully erosion, and the long-term feed-back mechanisms between land use changes and natural processes since the end of the Pleistocene are also expressed. Phases of gully erosion and subsequent filling occurred in the Bronze Age and around the 10th to 11th century. The most severe deepening and expansion of the gully took place in the 17th century. The results also show that field structures and land use intensity had a significant influence on the frequency and magnitude of run-off, soil erosion, piping, and landslide events. The last significant erosion phase started in the mid-19th century with renewed headward retreatment and down-cutting into older gully fills. Today, most of the catchment is either forested or the land is covered in berry shrubs. In the future, the area will continue to produce sediments, because of the steep slopes and because there are still areas of bare soil with a low resistance to erosion, a legacy from past land uses, which will remain a factor affecting soil erosion and sedimentation processes in the future. This study is an example of how important it is to observe and understand slow geomorphologic processes, changes and rare extreme events in the light of land use changes when investigating long-term human-environment interactions.

  19. Návrh odstředivého čerpadla metodami diferenciální geometrie

    OpenAIRE

    Sloupenský, Zdeněk

    2011-01-01

    Disertační práce se zabývá novým přístupem návrhu oběžného kola, lopatky a spirály odstředivého čerpadla. Matematický model proudění v meridiálním řezu oběžného kola i spirály se opírá o nástroje diferenciální geometrie aplikované na Bézieroy plochy. Tato již dříve představená teorie je v této práci hlouběji rozpracována a závěry jsou využity při návrhu součástí odstředivého čerpadla, které přicházejí do styku s kapalinou. Hlavním výstupem práce je matematický model a na jeho základě vytvořen...

  20. Analýza sportovního areálu vybranými metodami

    OpenAIRE

    Jelínek, Vojtěch

    2014-01-01

    Bakalářská práce se zabývá analýzou sportovního areálu U Hrocha, který má být dokončen v roce 2014. Obsahuje teoretická východiska, která jsou následně implementována do skutečné reality podniku, a to prostřednictvím PESTLE analýzy, Porterovy analýzy a SWOT analýzy. Závěrem je vyhodnocena situace a jsou navržena řešení pro optimalizaci chodu sportovního areálu. This bachelor´s thesis deals with analysis of the sports complex U Hrocha, which will be completed in 2014. It contains theoretica...

  1. Main: 1CZ2 [RPSD[Archive

    Lifescience Database Archive (English)

    Full Text Available perties Of A Wheat Nonspecific Lipid Transfer Protein. S...drot, A.Caille, J.-P.Douliez, D.Marion, F.Vovelle S.Tassin-Moindrot, A.Caille, J.-P.Douliez, D.Marion, F.Vovelle The Wide Binding Pro

  2. CZ: Multimethods and Multiple Inheritance Without Diamonds

    Science.gov (United States)

    2009-12-01

    renaming (e.g., Eiffel [31]) or by lin- earizing the class hierarchy [46, 45]. However, there is still no satisfactory solution to the dia- mond...the latter is the desirable semantics; it is supported in languages such as Scala, Eiffel , and C++ (the last through virtual inheritance) [38, 31, 21...certain. Previous Solutions. Languages that directly attempt to solve the object initialization problem include Eiffel [31], C++ [21], Scala [38] and

  3. „Legalizować czy nie?” – analiza związku pomiędzy stosowaniem kanabinoli a częstością występowania i obrazem klinicznym zaburzeń psychotycznych

    Directory of Open Access Journals (Sweden)

    Marta Gawłowska

    2010-03-01

    Full Text Available Związek pomiędzy zażywaniem kanabinoli a występowaniem zaburzeń psychotycznych jest opisywany od dawna. Udowodniono między innymi, że kanabinole mogą wywoływać przemijające objawy pozytywne, negatywne i poznawcze psychozy u zdrowych osób oraz zaostrzać objawy lub powodować ich nawrót w przebiegu wcześniej rozpoznanych zaburzeń psychotycznych. Jednak nadal niewiele wiadomo o mechanizmach, które powodują powstawanie tych symptomów. Zgodnie z najnowszymi doniesieniami mogą one angażować układy dopaminergiczny, GABA-ergiczny i glutaminergiczny. Ponieważ tylko u części osób zażywających kanabinole rozwijają się objawy psychotyczne, prawdopodobnie substancje te nie stanowią głównego czynnika sprawczego psychozy, lecz mogą stanowić ważny czynnik ryzyka, który przyczynia się do manifestacji jej objawów. Takie wskaźniki, jak dawka, długość stosowania oraz wiek pierwszego kontaktu z kanabinolami, stanowią uznane czynniki modyfikujące przebieg psychozy, jakkolwiek mechanizm tego zjawiska pozostaje w dużym stopniu niejasny. W ostatnim czasie coraz szersze uznanie zyskują nowe hipotezy, zakładające możliwy wpływ kanabinoli na rozwój centralnego układu nerwowego. Istnieją dowody na to, że endogenny układ kanabinoidalny może odgrywać istotną rolę w takich procesach, jak neurogeneza, różnicowanie, dojrzewanie i migracja neuronów, wydłu- żanie aksonów oraz formowanie struktur gleju. Zażywanie kanabinoidów egzogennych, zaburzając działanie układu endokanabinoidalnego oraz zakłócając procesy neurorozwojowe, może stanowić mechanizm, poprzez który ekspozycja na działanie tych substancji w okresie adolescencji zwiększa ryzyko rozwoju schizofrenii lub innych utrwalonych zaburzeń psychotycznych.

  4.  Ocena kondycji finansowej łączących się spółek na przykładzie jednostek z wybranych województw Polski Zachodniej

    Directory of Open Access Journals (Sweden)

    Piotr Luty

    2014-04-01

    Full Text Available  Celem artykułu było sprawdzenie kondycji finansowej łączących się spółek. Badania obejmowały kon-dycję finansową przystępujących do połączenia spółek akcyjnych z województw dolnośląskiego, opol-skiego, wielkopolskiego, lubuskiego i zachodniopomorskiego w latach 2008–2010. Spółki zostały wyty-powane na podstawie wpisów do Krajowego Rejestru Sądowego. Osiągnięcie celu badań nastąpiło po zweryfikowaniu dwóch hipotez badawczych. Pierwsza zakładała, że istnieje zależność między kondycją finansową spółki a jej przyporządkowaniem do grupy spółek przejmujących lub przejmowanych. Druga hipoteza zakładała, że w okresie spowolnienia gospodarczego spółki przejmujące są w dobrej sytuacji finansowej. Analiza kondycji finansowej była oparta na trzech modelach analizy dyskryminacyjnej, charakteryzujących się wysoką skutecznością predykcyjną, z których do dalszych badań wybrano model Korola. Analizowane były sprawozdania spółek na rok, na dwa lata i na trzy lata przed planowanym połączeniem. Współzależność została określona na podstawie współczynnika V-Cramera. Wyniki badań pozwalają stwierdzić, że istnieje słaba zależność między kondycją finansową a podziałem na spółki przejmujące i przejmowane. Ponadto występuje także bardzo słaba zależność między kondycją finanso-wą a okresem spowolnienia gospodarczego.

  5. Ocena częstości występowania składowych zespołu metabolicznego w grupie pacjentów ze stabilną dusznicą bolesną kwalifikowanych do planowej koronarografii = Assessment of frequency of components of metabolic syndrome in patients with stable angina qualified for planning angiography

    OpenAIRE

    Sawicka, Katarzyna; Kapłon, Marta; Łuczyk, Robert; Wawryniuk, Agnieszka

    2016-01-01

    Sawicka Katarzyna, Kapłon Marta, Łuczyk Robert, Wawryniuk Agnieszka. Ocena częstości występowania składowych zespołu metabolicznego w grupie pacjentów ze stabilną dusznicą bolesną kwalifikowanych do planowej koronarografii = Assessment of frequency of components of metabolic syndrome in patients with stable angina qualified for planning angiography. Journal of Education, Health and Sport. 2016;6(9):391-421. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.62069 http://ojs.ukw....

  6. Scientific Opinion of the Panel on Genetically Modified Organisms on an application (Reference EFSA-GMO-CZ-2006-33) for the placing on the market of the insect-resistant and glyphosate-tolerant genetically modified maize MON 88017 x MON 810, for food and feed uses, import and processing under

    DEFF Research Database (Denmark)

    Sørensen, Ilona Kryspin

    . Further information from applications for placing the single insert lines MON 88017 and MON 810 on the market under EU regulatory procedures was taken into account where appropriate. The scope of application EFSA-GMO-CZ-2006-33 is for food and feed uses, import and processing of genetically modified maize...... MON 88017 x MON 810 and all derived products, but excluding cultivation in the EU. The EFSA GMO Panel assessed maize MON 88017 x MON 810 with reference to the intended uses and the appropriate principles described in the Guidance Document of the Scientific Panel on Genetically Modified Organisms...... or survival of feral maize plants in case of accidental release into the environment of maize MON 88017 x MON 810 viable grains during transportation and processing. The scope of the post-market environmental monitoring plan provided by the applicant is in line with the intended uses of maize MON 88017 x MON...

  7. Napoved razvoja hiperbilirubinemije pri donošenih novorojenčkih z neinvazivnimi metodami: Prediction of hyperbilirubinemia by noninvasive methods in full-term newborns:

    OpenAIRE

    Bratanič, Borut; Pavlin, Tatjana; Gradecki, Mirjam; Furlan, Danijela; Žalec, Lidija; Oštir Mevželj, Darinka

    2013-01-01

    Introduction: The noninvasive screening methods for bilirubin determination were studied prospectively in a group of full-term healthy newborns with the aim of early prediction of pathological neonatal hyperbilirubinemia. Laboratory determination of bilirubin (Jendrassik- Grof (JG)) was compared to the noninvasive transcutaneous bilirubin (TcBIL) together with the determination of bilirubin in cord blood. Methods: The study group consisted of 284 full-term healthy consecutively born infants i...

  8. Amartya Sen o prawach człowieka

    Directory of Open Access Journals (Sweden)

    Katarzyna Guczalska

    2014-12-01

    Full Text Available The article discusses the idea of ‘human rights’ and the Amartya Sen’s reflections on that topic. By assumption, Sen does not present a catalogue of human rights, yet he claims that the language of human rights can be used to talk about the so-called human capabilities (the main concept of Sen’s theory. The aporia that exists in the current paradigm of human rights consists in the fact that it has been based on a few (liberal foundations, while, on the other hand, it has been extended into a broad system of individual rights/entitlements conflicting with their foundation. Each of those systems of rights entails a specific vision of social life. The liberal tradition postulates the existence of a minimal state, which guards freedom, life and property. In the leftist tradition, in contrast, there is postulated the existence of a welfare state, which satisfies people’s ever growing needs, based on an extensive bureaucracy and high taxes – under the patronage of the idea of social justice. Those social visions cannot be reconciled – they lead to conflicts. In this text, I present the problem of inconsistency and tension within the ‘human rights’, contrasting Amartya Sen’s theory with classical liberalism of John Locke. I claim that assessment of the contemporary ‘human rights’ theory should depend on whether a given theory is capable of proper determination and – at least to some extent – solving the problem of incoherence and tensions present in the Western ‘human rights’ paradigm. It seems that Sen’s conception cannot meet that challenge.

  9. Hydrogen-induced boron passivation in Cz Si

    Energy Technology Data Exchange (ETDEWEB)

    Castaldini, A.; Cavalcoli, D.; Cavallini, A. [INFM and Physics Department, Viale Berti Pichat 6/2, 40137 Bologna (Italy); Susi, E. [CNR-LAMEL, Via Gobetti 101, 40129 Bologna (Italy)

    2002-11-01

    Acceptor deactivation in the near-surface region of as-grown, boron-doped Si wafers was detected by in-depth profiles of the free-carrier density obtained by capacitance-voltage measurements. As this deactivation was only observed in wafers subjected to the standard cleaning procedures used in Si manufacturing, we ascribed it to boron passivation by an impurity introduced during the cleaning process. From the study of the free-carrier reactivation kinetics and of the diffusion behaviour of boron-impurity complexes, we have concluded that the impurity is possibly related to hydrogen introduced during the cleaning treatments. The characteristics of the deep level associated with this impurity have been analysed by deep-level transient spectroscopy. (orig.)

  10. Odejście „człowieka ferdydurkicznego”

    Directory of Open Access Journals (Sweden)

    Jerzy Jarzębski

    2013-01-01

    Full Text Available Gombrowicz’s life can be divided into two parts. During the first period of his life, Gombrowicz is preoccupied with the “Ferdydurke Man”, i.e. a funny character who is tortured by Form, which he tries to overcome but which he finally succumbs to by falling into inauthenticity. This man, though incoherent, is understandable both for the author and the reader because he comes from the world they both live in and epitomizes their own problems, which makes readers laugh. The second period of Gombrowicz’s life begins with a scene in Venice in 1938. He meets young Italian pilots who are ready to destroy the city if Mussolini gives such an order. This is when new and “savage” young people take the place of the “Ferdydurke Man”. They are a product of their time – they do not think independently and they constitute a breeding ground for totalitarian ideologies. Gombrowicz tries to understand this generation and presents a picture of the world these young people are building for themselves in consecutive dark literary works.

  11. Analysis of Suitability for Development of New Mining Field in Northern Part of Kosovo Lignite Basin - Sibovc / Analiza Możliwości Udostępnienia Nowego Obszaru Wybierania W Północnej Części Zagłębia Węgla Brunatnego Sibovc W Kosowie

    Science.gov (United States)

    Cehlár, Michal; Rybár, Radim; Pinka, Ján; Haxhiu, Lorik; Beer, Martin

    2013-06-01

    This review describes the possibility of development a new lignite deposit in northern Kosovo lignite basin - Sibovc. Analysis of the initial state briefly evaluates Kosovo energy sector, geomorphological conditions and quality of lignite from Sibovc deposit. With using Dataminesoft it was created geological model and approximate calculation of lignite reserves in the deposit. The data obtained from Dataminesoft were used as starting points of the financial analysis of project. The result of the analysis is exactly describe the qualitative and quantitative characteristics of deposit Sibovc compared to other deposits in the area and creating of geological model with productive horizons deposit of lignite. Based on these data lignite deposit Sibovc was classified, according to the classification of deposits the UN, as economical. W pracy tej omówiono możliwości udostępnienia nowego obszaru wybierania złoża węgla brunatnego (lignitu) w północnej części zagłębia węgla brunatnego Sibovc w Kosowie. W analizie stanu początkowego krótko scharakteryzowano sektor energetyczny Kosowa, warunki geo-morfologiczne oraz parametry jakościowe węgla brunatnego z zagłębia Sibovc. Przy pomocy pakietu Dataminesoft stworzono model geologiczny i przeprowadzono przybliżone obliczenia zasobów węgla brunatnego w złożu. Dane uzyskane przy zastosowaniu pakietu Dataminesoft zostały następnie wykorzystane jako dane wejściowe do analizy finansowej przedsięwzięcia. Na podstawie wyników analizy uzyskuje się jakościową i ilościową charakterystykę złoża w odniesieniu do pozostałych złóż w regionie. Opracowano model geologiczny ze szczegółowym wskazaniem poziomów wybierania lignitu. W oparciu o te dane dokonano klasyfikacji złoża węgla brunatnego (lignitu) w Sibovc zgodnie z międzynarodowymi zasadami klasyfikacji wykazując, że złoże będzie ekonomiczne.

  12. Analiza metod scalania arkuszy Numerycznego Modelu Terenu na przykładzie zlewni rzeki Kamiennej i Iłżanki

    Directory of Open Access Journals (Sweden)

    Paweł Gilewski

    2016-07-01

    Full Text Available Numeryczny Model Terenu znajduje coraz częstsze zastosowanie w inżynierii środowiska. Zaprezentowano aplikację pozwalającą na zamianę arkusza NMT w formacie TIN na rastrowy, a następnie połączenie wielu rastrów w jeden (mozaikowanie. Analizie poddano dokładność uzyskiwanych modeli w miejscach nakładania się arkuszy NMT. Łącznie analizie poddano 48 modeli rastrowych uzyskanych 2 metodami interpolacji, o 4 różnych rozdzielczościach i połączonymi za pomocą 6 metod mozaikowania.

  13. Badania Procesów Tribologicznych Węzłów Łożyskowych Metodami Fam-C I Fdm-A – Model Zwiększonych Oporów Biernych

    Directory of Open Access Journals (Sweden)

    Gębura Andrzej

    2014-12-01

    Full Text Available W artykule przedstawiono wybrane rezultaty zastosowania metod FAM-C (prądnica prądu przemiennego i FDM-A (prądnica prądu stałego do kompleksowego diagnozowania węzłów łożyskowych zespołu wirnikowego jednowałowego silnika turbinowego. Prądnice prądu przemiennego przenoszą informacje o procesach wolnozmiennych, na podstawie których można monitorować luzy promieniowe, luzy podłużne, przekoszenia wałów. Prądnice prądu stałego przenoszą informacje o procesach szybkozmiennych, na podstawie których można monitorować dynamikę poszczególnych łożysk tocznych: zmiany wartości dobroci mechanicznej, wartość oporów łącznych, współczynnik poślizgu elementów tocznych, szybkość wirowania koszyka względem czopa itp. Blisko dziesięcioletnie obserwacje diagnostyczne prowadzone na licznej próbie silników podczas ich eksploatacji umożliwiły klasyfikację procesów zużywania łożysk w postaci czterech modeli fenomenologicznych. W niniejszym artykule przedmiotem rozważań będzie model zwiększonych oporów biernych

  14. Počet somatických buněk v syrovém kravském mléce v souvislosti s použitými metodami prevence mastitid

    OpenAIRE

    MÍKOVÁ, Andrea

    2008-01-01

    Graduation theses are inquired into question of somatic cell count (SCC) in row cow milk in relation to the used methods of mastitis prevention. In the year 2005 and 2006 was following values of SCC in raw cow milk in tetra breeding dairy cows. Breeds are differentating from each other with technology of breeding (horsy, summer pasture), technology of lairege and milking. SCC in bulk tank milk was determined according to ČSN EN ISO 133366 {--} 3 milk. Lowest average funds PSB (156,3 {$\\cdot$}...

  15. Revision and update of the EGIB land-use database using the airborne laser scanning point cloud - the case study of Tuklecz village in 'wietokrzyskie voivodeship. (Polish Title: Weryfikacja i aktualizacja bazy klaso-użytków EGIB w oparciu o analizy chmury punktów z lotniczego skanowania laserowego na przykładzie wsi Tuklęcz w województwie świętokrzyskim)

    Science.gov (United States)

    Wężyk, P.; Gęca, T.

    2013-12-01

    Dynamic economic and social changes taking place for the past 20 years in Poland, effects often of such loss of extensive agriculture and abandonment of agricultural activities particularly on small and narrow plots , usually on the soils of poor grading. Even before the Polish accession to the EU, set - aside and fallow areas cover approx. 2.3 million ha (in 2002), but in subsequent years the area drastically decreased from 1.3 million ha (in 2004) , by 1.0 million ha ( 2 005 ) to 0.4 million hectares (2011). As a result of cessation of mowing meadows, grazing pastures and agricultural measures , we can observed the phenomenon of secondary forest succession ( plant communities of a forest properties ) leading to changes in land use and land cover classes structure . Recording changes in the agro - forestry space, update reference registers of the land and building (EGiB) and control granted to farmers subsidies ( direct EU payments) requires an efficient and automated technology acquisition, processing and analysis of spatial data. In addition to the used by ARiMR (in the LPIS system) vector data and aerial orthophotomaps , there is still a need to strengthen the decision - making process such as update of current ranges of land - use cla sses. One of the GI technologies that could be a real breakthrough is the Airborne Laser Scanning (ALS) . The study area cover 137.17 ha in the village Tuklęcz (commune Rytwiany, Staszów County , ?więtokrzyskie Voivodeship ). The EGiB geo data came from PODGiK in Staszów. They were two ALS point cloud data sets: one provided by the RZGW in Krakow (from airborne campaign Nov. 2009; density ~ 2 pts / m2) and the second from ISOK project (Nov. 2012; density ~ 4 pts / m2 ). The Terrasolid and FUSION (USDA Forest Service) and ArcGIS Esri software were used in the study . Detection of vegetation was carried out in 4 variants differ in the "height above ground" of the class "succession" (thresholds: from 0.4m , 1m, 2m and 3m ). The

  16. Electronic and optical properties of BxNyCz monolayers with adsorption of hydrogen atoms

    Science.gov (United States)

    Leite, L.; Azevedo, S.; de Lima Bernardo, B.

    2017-03-01

    We apply first-principles calculations, using density functional theory, to analyze the electronic and optical properties of monolayers of graphene with a nanodomain of 2D hexagonal boron nitrite (h-BN). It also investigated the effects of the adsorption of hydrogen atoms in different atoms at the edge of the h-BN nanodomain. We calculate the electronic band structure, the complex dielectric function and the optical conductivity. For such systems, the calculations demonstrate that the compounds exhibit a prominent excitement in the visible and near-infrared regions. In this form, the present study provides physical basis for potential applications of the considered materials in optoelectronic devices at the nanoscale.

  17. Striations in CZ silicon crystals grown under various axial magnetic field strengths

    Science.gov (United States)

    Kim, K. M.; Smetana, P.

    1985-10-01

    Inhibition of fluid flow instabilities in the melt by the axial magnetic field in Czochralski silicon crystal growth (AMCZ) is investigated precisely by a high-sensitivity striation etch in conjunction with temperature measurements. The magnetic field strength (B) was varied up to 4.0 kG, incremented mostly in 0.5-kG/2.5-cm crystal length. The convection flow was substantially suppressed at B greater than or equal to 1.0 kG. A low oxygen level of 2-3 ppm and a high resistivity of 400 ohm-cm is achieved in the AMCZ silicon crystals at B greater than or equal to 1.0 kG. Random striations at B = O, characteristic of turbulent convection, assumed progressively a periodicity, indicative of oscillatory convection at B from 0.35-4.0 kG. The striation contrast or 'intensity' decreased steadily with the increase in B. At B = 4 kG, most of the crystal was free of striations, although some weak, localized periodic striations persisted near the crystal periphery. Spreading-resistance measurement shows, however, a uniform dopant distribution in all crystal sections grown at B from 0.35-4.0 kG within a few percent.

  18. Excimer laser annealing: A gold process for CZ silicon junction formation

    Science.gov (United States)

    Wong, David C.; Bottenberg, William R.; Byron, Stanley; Alexander, Paul

    A cold process using an excimer laser for junction formation in silicon has been evaluated as a way to avoid problems associated with thermal diffusion. Conventional thermal diffusion can cause bulk precipitation of SiOx and SiC or fail to completely activate the dopant, leaving a degenerate layer at the surface. Experiments were conducted to determine the feasibility of fabricating high quality p-n junctions using a pulsed excimer laser for junction formation at remelt temperature with ion-implanted surfaces. Solar-cell efficiency exceeding 16 percent was obtained using Czochralski single-crystal silicon without benefit of back surface field or surface passivation. Characterization shows that the formation of uniform, shallow junctions (approximately 0.25 micron) by excimer laser scanning preserves the minority carrier lifetime that leads to high current collection. However, the process is sensitive to initial surface conditions and handling parameters that drive the cost up.

  19. World Energy Data System (WENDS). Volume II. Country data, CZ-KS

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-06-01

    The World Energy Data System contains organized data on those countries and international organizations that may have critical impact on the world energy scene. Included in this volume, Vol. II, are Czechoslovakia, Denmark, Egypt, Finland, France, Germany (East), Germany (West), Greece, Guinea, India, Indonesia, Iran, Italy, Japan, and Korea (South). The following topics are covered for most of the countries: economic, demographic, and educational profiles; energy policy; indigenous energy resources and uses; forecasts, demand, exports, imports of energy supplies; environmental considerations of energy use; power production facilities; energy industries; commercial applications of energy; research and development activities of energy; and international activities.

  20. Polskie czasopisma komputerowe. Cz. 3, Magazyny współczesne

    OpenAIRE

    Kolasa, Władysław Marek

    1999-01-01

    [Polish computer magazines. Part 3, Contemporary Magazines] Outline of development of Polish periodicals on science. Part 3, Contemporary Magazines. Attached bibliography - 151 item (journal and magazines).

  1. J.C. Greeff,* C.z. Raux and G.A. Wyma

    African Journals Online (AJOL)

    Merino (C x M) and Merino Landsheep x Merino (ML x M), with their flock structures in equilibrium, were evaluated ... Bleu de Maine, 6 Texel, 4 Cheviot and 5 Merino Land- sheep ... as maintenance requirements of the breeding ewes can be.

  2. Cellulose Acetate Replica Cleaning Study of Genesis Non-Flight Sample 3CZ00327

    Science.gov (United States)

    Kuhlman, K. R.; Schmeling, M.; Gonzalez, C. P.; Allton, J. H.; Burnett, D. S.

    2014-01-01

    The Genesis mission collected solar wind and brought it back to Earth in order to provide precise knowledge of solar isotopic and elemental compositions. The ions in the solar wind were stopped in the collectors at depths on the order of 10 to a few hundred nanometers. This shallow implantation layer is critical for scientific analysis of the composition of the solar wind and must be preserved throughout sample handling, cleaning, processing, distribution, preparation and analysis. We are working interactively with the community of scientists analyzing Genesis samples, using our unique laboratory facilities -- and, where needed, our unique cleaning techniques -- to significantly enhance the science return from the Genesis mission. This work is motivated by the need to understand the submicron contamination on the collectors in the Genesis payload as recovered from the crash site in the Utah desert, and -- perhaps more importantly -- how to remove it. That is, we are evaluating the effectiveness of the wet-chemical "cleaning" steps used by various investigators, to enable them to design improved methods of stripping terrestrial contamination from surfaces while still leaving the solar-wind signal intact.

  3. Plasma texturing on large-area industrial grade CZ silicon solar cells

    DEFF Research Database (Denmark)

    Davidsen, Rasmus Schmidt; Nordseth, Ørnulf; Boisen, Anja

    2013-01-01

    We report on an experimental study of nanostructuring of silicon solar cells using reactive ion etching (RIE). A simple mask-less, scalable RIE nanostructuring of the solar cell surface is shown to reduce the AM1.5-weighted average reflectance to a level below 1 % in a fully optimized RIE texturing...

  4. Model of Customer Buying Behavior in the CZ Mobile Telecommunication Market

    Directory of Open Access Journals (Sweden)

    Ondrej Grünwald

    2012-01-01

    Full Text Available The Czech mobile telecommunication market constitutes an oligopoly of three operators, who have built a privileged position and effectively crush any competition. The entry of a new operator has been considered by the government since the end of 2009. The new mobile operator should push down the prices of services, which are the highest in Europe and also affect the development of new mobile services. This paper analyzes consumer behavior in the mobile telecommunication market. It reveals how different elements are considered by customers and what is important when choosing a mobile tariff. With use conjoint analysis, we obtained empirical arguments about the preferences of customersin the Czech Republic. The analysis shows that the relatively high price of services greatly reduces the unsaturated demand in the mobile telecommunication market, and proves that the price is crucial in customer decision-making.

  5. Heideggerowski zwrot: jedność bycia i nieantropocentryczna filozofia człowieka

    OpenAIRE

    2013-01-01

    The article aims to show that one of the most important manifestations of Turn in the philosophy of Martin Heidegger is a change of the ontological status of beings other than human. Transformation of Dasein into Da-sein (which takes place in Heidegger's works written between year 1930 and 1936) is accompanied by the recognition of being of other beings, "things" (concrete individuals, animate and non-animated). While in "Being and Time", other entities are considered "lower" t...

  6. Amartya Sen o prawach człowieka [Sen on human rights

    Directory of Open Access Journals (Sweden)

    Katarzyna Guczalska

    2014-12-01

    Full Text Available The article discusses the idea of ‘human rights’ and the Amartya Sen’s reflections on that topic. By assumption, Sen does not present a catalogue of human rights, yet he claims that the language of human rights can be used to talk about the so-called human capabilities (the main concept of Sen’s theory. The aporia that exists in the current paradigm of human rights consists in the fact that it has been based on a few (liberal foundations, while, on the other hand, it has been extended into a broad system of individual rights/entitlements conflicting with their foundation. Each of those systems of rights entails a specific vision of social life. The liberal tradition postulates the existence of a minimal state, which guards freedom, life and property. In the leftist tradition, in contrast, there is postulated the existence of a welfare state, which satisfies people’s ever growing needs, based on an extensive bureaucracy and high taxes – under the patronage of the idea of social justice. Those social visions cannot be reconciled – they lead to conflicts. In this text, I present the problem of inconsistency and tension within the ‘human rights’, contrasting Amartya Sen’s theory with classical liberalism of John Locke. I claim that assessment of the contemporary ‘human rights’ theory should depend on whether a given theory is capable of proper determination and – at least to some extent – solving the problem of incoherence and tensions present in the Western ‘human rights’ paradigm. It seems that Sen’s conception cannot meet that challenge.

  7. Macromycetes of oak forests in the Jurassic Landscape Park (Częstochowa Upland - monitoring studies

    Directory of Open Access Journals (Sweden)

    Maria Ławrynowicz

    2014-08-01

    Full Text Available Mycological observations were carried out between 1994-1996 in two representative plots (1000 m2 each in 80-year-old oak plantation (Quercus robur and Qu. petraea on calcareous hill in the Mstów village in the Jurassic Landscape Park. The project was carried out in the frame of international network of the „Mycological monitoring in European oak forests". During 24 visits in the plots a total of 190 species of macromycetes was recorded: 80 mycorrhizal and 110 saprobic fungi. Among them 2 species are new to Poland and 16 are inscribed in the Red List of threatened macromycetes in Poland (Wojewoda and Ławrynowicz 1992.

  8. Data of evolutionary structure change: 1CZ7A-2ZFLA [Confc[Archive

    Lifescience Database Archive (English)

    Full Text Available A 371 66.114 -3.555 92.339 1.00 84.53 C -map> THR TRP THR CYS CYS...e>TRP CA 3.75 THR CA e-map> GLU CA 171 GLU CA 143ATOM 199 CA GLN A 29 11.466 27.434 -3.286 1.00 65.49 C ...80 ILE CA 3.79 GLN CA -map> GLU CA 246 -map> ILE LEU PRO SER VAL MET GLU PHE

  9. Infrared studies of oxygen-related complexes in electron-irradiated Cz-Si

    Institute of Scientific and Technical Information of China (English)

    Chen Gui-Feng; Yan Wen-Bo; Chen Hong-Jian; Cui Hui-Ying; Li Yang-Xian

    2009-01-01

    This paper investigates the infrared absorption spectra of oxygen-related complexes in silicon crystals irradiated with electron (1.5 MeV) at 360 K. Two groups of samples with low [Oi] = 6.9×1017 cm-3 and high [Oi] = 1.06 ×1018 cm-3 were used. We found that the concentration of the VO pairs have different behaviour to the annealing temperature in different concentration of oxygen specimen, it is hardly changed in the higher concentration of oxygen specimen. It was also found that the concentration of VO2 in lower concentration of oxygen specimen gets to maximum at 450℃ and then dissapears at 500℃, accompanied with the appearing of VO3. For both kinds of specimens, the concentration of VO3 reachs to maximum at 550 ℃ and does not disappear completely at 600℃.

  10. Model of Customer Buying Behavior in the CZ Mobile Telecommunication Market

    OpenAIRE

    Ondrej Grünwald

    2012-01-01

    The Czech mobile telecommunication market constitutes an oligopoly of three operators, who have built a privileged position and effectively crush any competition. The entry of a new operator has been considered by the government since the end of 2009. The new mobile operator should push down the prices of services, which are the highest in Europe and also affect the development of new mobile services. This paper analyzes consumer behavior in the mobile telecommunication market. It reveals how...

  11. Investigating thermal donors in n-type Cz silicon with carrier density imaging

    Directory of Open Access Journals (Sweden)

    Yu Hu

    2012-09-01

    Full Text Available A new method to map the thermal donor concentration in silicon wafers using carrier density imaging is presented. A map of the thermal donor concentration is extracted with high resolution from free carrier density images of a silicon wafer before and after growth of thermal donors. For comparison, free carrier density mapping is also performed using the resistivity method together with linear interpolation. Both methods reveal the same distribution of thermal donors indicating that the carrier density imaging technique can be used to map thermal donor concentration. The interstitial oxygen concentration can also be extracted using the new method in combination with Wijaranakula's model. As part of this work, the lifetime at medium injection level is correlated to the concentration of thermal donors in the as-grown silicon wafer. The recombination rate is found to depend strongly on the thermal donor concentration except in the P-band region.

  12. Komunikační strategie pro firmu Chytej.cz

    OpenAIRE

    Měřička, Radim

    2009-01-01

    Práce pojednává o možnostech firmy, jejíž aktivity se soustřeďují na prostředí internetu. Kromě provozování portálu pro rybáře se společnost zabývá výrobou instruktážních a výpravných filmů s rybářskou tématikou. V práci jsou hledány způsoby, jak přistupovat k rozdílným zájmovým skupinám a jak u nich své služby propagovat. Závěrem práce je několik návrhů, které by mohla firma za účelem svého růstu učinit. The thesis deals with potentialities of a company, whose activities are focused in th...

  13. DLTS Studies of high-temperature electron irradiated Cz n-Si

    Energy Technology Data Exchange (ETDEWEB)

    Neimash, V.; Kras' ko, M.; Kraitchinskii, A.; Voytovych, V.; Tishchenko, V. [Institute of Physics NANU, 46 Nauki Av., Kiev (Ukraine); Simoen, E.; Rafi, J.M. [IMEC, Kapeldreef 75, B-3001 Leuven (Belgium); Claeys, C. [IMEC, Kapeldreef 75, B-3001 Leuven (Belgium); E.E. Dept., KU Leuven, Kasteelpark Arenberg 10, B-3001 Leuven (Belgium); Versluys, J.; De Gryse, O.; Clauws, P. [Dept. Solid-State Sciences, Ghent University, Krijgslaan 281 S1, B-9000 Gent (Belgium)

    2004-02-01

    This paper reports on a Deep Level Transient Spectroscopy (DLTS) study of both oxygen-related thermal donors (OTDs) and radiation-induced defects (RDs) formed in high-temperature 1 MeV electron irradiated n-type Czochralski silicon. The heating of Si samples is done in-situ by the electron beam. The formation of deep levels is studied on both heat-treated and irradiated at high temperature sides of samples. The interaction between OTDs and RDs is investigated. (copyright 2004 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  14. DLTS Studies of high-temperature electron irradiated Cz n-Si

    Science.gov (United States)

    Neimash, V.; Kras'ko, M.; Kraitchinskii, A.; Voytovych, V.; Tishchenko, V.; Simoen, E.; Rafi, J. M.; Claeys, C.; Versluys, J.; de Gryse, O.; Clauws, P.

    2004-02-01

    This paper reports on a Deep Level Transient Spectroscopy (DLTS) study of both oxygen-related thermal donors (OTDs) and radiation-induced defects (RDs) formed in high-temperature 1 MeV electron irradiated n-type Czochralski silicon. The heating of Si samples is done in-situ by the electron beam. The formation of deep levels is studied on both heat-treated and irradiated at high temperature sides of samples. The interaction between OTDs and RDs is investigated.

  15. Corrosion behavior of LY12CZ aluminum alloy in simulated acid rain solution

    Institute of Scientific and Technical Information of China (English)

    安百刚; 张学元; 宋诗哲; 李洪锡; 韩恩厚

    2003-01-01

    The variations of corrosion potential, electrochemical impedance and surface morphology of LY12 alumi-num alloy with pH of simulated acidic rain solutions were investigated with EIS and SEM. It is found that corrosionpotential shifts to less noble value with increasing pH in the solutions of pH lower than 3.1 and shifts to more noblevalue in the solutions of pH higher than 3.1. In the solutions of pH lower than 3.1,the electrochemical impedancediagram has a capacitive loop at higher frequency and an inductive loop at lower frequency and the magnitude of highfrequency loop decreases with decreasing pH and increasing period of immersion. However, in the solutions of pHhigher than 3.4 two capacitive loops appear and the magnitude of high frequency loops increases with pH and periodof immersion. Observation of SEM shows that the pitting intensity increases with decreasing pH in the range ofpH2.0~3.4, no evident pits are observed at pH higher than 3.4. The experiment results were discussed from re-sistance of oxide film and adsorption processes of anions in simulated acid rain solution.

  16. Metoda nabycia a metoda łączenia udziałóww procesie łączenia jednostek gospodarczych– rozwiązania krajowe i międzynarodowe

    Directory of Open Access Journals (Sweden)

    Marzena Remlein

    2009-03-01

    Full Text Available Celem artykułu jest prezentacja metod i sposobów bilansowego rozliczania procesu łączenia się jednostek gospodarczych przewidzianych przepisami polskiego prawa bilansowego i rozwiązaniami MSSF, oraz ukazanie różnic między tymi regulacjami w zakresie rozliczania procesu połączeń. W poszczególnych częściach opracowania przedstawiono istotę i procedury postępowania zgodnie z polski prawem bilansowym w przypadku zastosowania metody nabycia i metody łączenia udziałów. Dokonano porównania obowiązujących metod oraz zaprezentowano istotne różnice między obowiązującymi w Polsce metodami. Zaprezentowano również rozwiązania przewidziane w MSSF 3. Omówiono etapy postępowania w metodzie nabycia oraz zwrócono uwagę na rozbieżności między rozwiązaniami krajowymi a Międzynarodowymi Standardami Sprawozdawczości Finansowej.

  17. Building America Case Study: Heat Pump Water Heater Ducting Strategies with Encapsulated Attics in Climate Zones 2 and 4, LaFayette, Georgia (CZ4), and Savannah, Georgia (CZ2)

    Energy Technology Data Exchange (ETDEWEB)

    2017-02-01

    The focus of this study is on the performance of HPWHs with several different duct configurations and their effects on whole building heating, cooling, and moisture loads. A.O. Smith 60 gallon Voltex (PHPT-60) heat pump water heaters (HPWHs) were included at two project sites and ducted to or located within spray foamed encapsulated attics. The effect of ducting a HPWH's air stream does not diminish its efficiency if the ducting does not reduce intake air temperature, which expands HPWH application to confined areas. Exhaust ducts should be insulated to avoid condensation on the exterior, however this imposes a risk of condensation occurring in the duct's interior near the HPWH due to large variation of temperatures between the compressor and the duct and the presence of bulk moisture around the condenser. The HPWH's air conditioning impact on HVAC equipment loads is minimal when the intake and exhaust air streams are connected to a sealed attic and not the living space. A HPWH is not suitable as a replacement dehumidifier in sealed attics as peak moisture loads were observed to only be reduced if the heat pump operated during the morning. It appears that the intake air temperature and humidity was the most dominant variable affecting HPWH performance. Different ducting strategies such as exhaust duct only, intake duct only, and exhaust and intake ducting did not have any effect on HPWH performance.

  18. Superdiffusion of Carbon by Vacancies Irradiated with Soft X-Rays in CZ Silicon / Superdifūzija Ar Vakancēm Iestarota Ar Mīkstajiem Rentgenstariem CZ Silīcijā

    Directory of Open Access Journals (Sweden)

    Janavičius A. J.

    2015-10-01

    Full Text Available Rezumējums: Rentgena staru fotoni, absorbēti Si atoma iekšējos slāņos, izstaro fotoelektronus un Ožē elektronus, ģenerējot vakances, starpmezglu silīcija atomus, vakanču un skābekļa kompleksus. Čohraļska silīcija kristāli, kas pārklāti ar oglekli 0.1 μm biezuma kārtā, tika apstaroti ar rentgena stariem, izmantojot krievu difraktometru DRON-3M. Oglekļa un skābekļa difūzija un koncentrāciju izmaiņa silīcijā tika izmērīta izmantojot infrasarkano staru FTIR spektroskopiju. Rentgena staru ģenerētās ļoti ātrās oglekļa difūzijas vai superdifūzijas koeficients istabas temperatūrā silīcijā ir simtiem tūkstošu reižu lielāks nekā termodifūzijas gadījumā.

  19. Polszczyzna wobec tendencji języków indoeuropejskich do szyku progresywnego (człon nadrzędny → człon podrzędny

    Directory of Open Access Journals (Sweden)

    Marek Gawełko

    2015-09-01

    Full Text Available Polish against the tendency of changing word-order in indo-European languages (left-branching shift to right-branching One of the evolutive tendencies in indo-European languages is the gradual shift toward right-branching constructions (the head precedes the modifier. The right-branching has begun to dominate in the Romance languages; but not in Latin and not in Polish. However, these languages show this tendency, too; Latin in a lesser degree than Polish. Despite the innovations, Latin still displayed a considerable number of left-branching constructions, which it inherited from the protolanguage. Its specificity is that the basic construction (OV is archaic, but some others, such as NG, Vmod Inf, N, Rel, NA are innovations. The majority of archaic constructions used in Latin are also acceptable in Polish, but they are much more rare. Contrary to the Romance languages, Polish 1 uses sometimes archaic constructions, and 2 its right-branching constructions are relatively rare.

  20. Changes in The Content of Biodegradable Organic Matter in Tap Water in The City of Częstochowa / Zmiany Zawartości Biodegradowalnej Materii Organicznej w Wodzie Wodociagowej Dla Miasta Częstochowy

    Science.gov (United States)

    Rakocz, Klaudia; Rosińska, Agata

    2016-03-01

    This paper presents research aimed at the assessment of biodegradable organic carbon content changes (BDOC) during water disinfection process. The water samples examined in the research came from intakes, pumping stations at treatment plants situated in the Silesia district and water consumers. The examined water was underground water. One water sample was disinfected by sodium sub chloride while the other one by ozone. BDOC was determined using the Joret method, which involves observation of dissolved organic carbon (DOC) decrease in the examined water. The research has shown that BDOC content fluctuates at every stage of the treatment process and distribution of the examined water. Another analyzed parameter was biological stability of water.

  1. Changes in The Content of Biodegradable Organic Matter in Tap Water in The City of Częstochowa / Zmiany Zawartości Biodegradowalnej Materii Organicznej w Wodzie Wodociagowej Dla Miasta Częstochowy

    Directory of Open Access Journals (Sweden)

    Rakocz Klaudia

    2016-03-01

    Full Text Available This paper presents research aimed at the assessment of biodegradable organic carbon content changes (BDOC during water disinfection process. The water samples examined in the research came from intakes, pumping stations at treatment plants situated in the Silesia district and water consumers. The examined water was underground water. One water sample was disinfected by sodium sub chloride while the other one by ozone. BDOC was determined using the Joret method, which involves observation of dissolved organic carbon (DOC decrease in the examined water. The research has shown that BDOC content fluctuates at every stage of the treatment process and distribution of the examined water. Another analyzed parameter was biological stability of water.

  2. Steady distribution structure of point defects near crystal-melt interface under pulling stop of CZ Si crystal

    Science.gov (United States)

    Abe, T.; Takahashi, T.; Shirai, K.

    2017-02-01

    In order to reveal a steady distribution structure of point defects of no growing Si on the solid-liquid interface, the crystals were grown at a high pulling rate, which Vs becomes predominant, and the pulling was suddenly stopped. After restoring the variations of the crystal by the pulling-stop, the crystals were then left in prolonged contact with the melt. Finally, the crystals were detached and rapidly cooled to freeze point defects and then a distribution of the point defects of the as-grown crystals was observed. As a result, a dislocation loop (DL) region, which is formed by the aggregation of interstitials (Is), was formed over the solid-liquid interface and was surrounded with a Vs-and-Is-free recombination region (Rc-region), although the entire crystals had been Vs rich in the beginning. It was also revealed that the crystal on the solid-liquid interface after the prolonged contact with the melt can partially have a Rc-region to be directly in contact with the melt, unlike a defect distribution of a solid-liquid interface that has been growing. This experimental result contradicts a hypothesis of Voronkov's diffusion model, which always assumes the equilibrium concentrations of Vs and Is as the boundary condition for distribution of point defects on the growth interface. The results were disscussed from a qualitative point of view of temperature distribution and thermal stress by the pulling-stop.

  3. Process research of non-CZ silicon material. Quarterly report No. 2, January 1, 1984-March 31, 1984

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, R.B.

    1984-05-01

    In this program, which started November 4, 1983, the fabrication of solar cells on N-base material using simultaneous diffusion of liquid boron and phosphorus dopants to from the desired P/sup +/NN/sup +/ cell structure is being studied. This simultaneous junction formation method is being compared to the sequential junction formation method where phosphorus is diffused to form an N/sup +/N back surface field followed by a boron diffusion for the P/sup +/N front junction. During the contract, the sensitivity of the process parameters will also be studied; and a cost analysis of the new junction formation process will be performed using SAMICS-IPEG methodology.

  4. Od metafizyki do empirii. Antropologiczno-filozoficzne wizje człowieka [From metaphysics to empiricism. Philosophical anthropology on man

    Directory of Open Access Journals (Sweden)

    Karol Chrobak

    2014-06-01

    Full Text Available This essay focuses on three conceptions of man formulated within the German school of philosophical anthropology. I discuss, one by one, theories by Max Scheler, Helmuth Plessner and Arnold Gehlen. First, I emphasize the common to these theoreticians methodological assumptions consisting primarily in an opposition against the Cartesian dualism and in founding a ground for philosophical analysis in the results of scientific research. Second, I present their conceptions of man stressing at the same time dissimilarities that differ them from each other. These differences concern first and foremost their general orientation: while Scheler’s understanding of man is clearly determined by a metaphysical idea of a permanent essence of man, Plessner’s conception focuses rather on a dynamic, historical way of manifesting of their existence. Philosophy by Gehlen in turn presents a picture of man as a biological being who by their own effort, by emerging institutional reality, stabilizes their existence.

  5. 3D global analysis of CZ-Si growth in a transverse magnetic field with rotating crucible and crystal

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Lijun; Kakimoto, Koichi [Research Institute for Applied Mechanics, Kyushu University, 6-1, Kasuga-Koen, Kasuga 816-8580 (Japan)

    2005-04-01

    Three-dimensional global simulations were carried out for a small Czochralski furnace for silicon crystal growth with a recently developed global model. The furnace is placed in a transverse magnetic field with rotating crucible and crystal. The convective, conductive and radiative heat transfers in the entire furnace were solved in a three-dimensionally conjugated way. Three-dimensional distributions of temperature and velocity were analyzed. The melt-crystal interface was found to have nearly rotational symmetry, and the azimuthal non-uniformity of temperature is much weaker on the crystal and crucible sidewalls in the case of high rotation rates of crucible and crystal than in the case of non-rotating crucible and crystal. (copyright 2005 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  6. Optical studies of defects generated in neutron-irradiated Cz-Si during HP-HT treatment

    Energy Technology Data Exchange (ETDEWEB)

    Surma, B.; Wnuk, A. [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Misiuk, A. [Institute of Electron Technology, Al. Lotnikow 32/46, 02-668 Warsaw (Poland); Londos, C.A. [Department of Physics, Panepistimiopolis, GR-15784 Zografos, Athens (Greece); Bukowski, A. [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Silicon CEMAT, Wolczynska 133, 01-919 Warsaw (Poland)

    2005-04-01

    Neutron-irradiated Czochralski grown silicon subjected to heat treatment (HT) at 350 C and 1000 C under enhanced hydrostatic pressure (HP) was studied in this work. It has been shown that external hydrostatic pressure enhances the creation of VO{sub 2} defects in neutron irradiated silicon subjected to the HP-HT treatment at 350 C. Enhanced formation of platelet-like oxygen precipitates was found in the samples treated at 1000 C under 1.1 GPa. This effect was more pronounced in the samples with VO{sub 2} defects. Presented results seem to suggest that probably HP helps to transform VO{sub 2} to some kind of defects or change alone VO{sub 2} defects in the form that can act as an additional nucleus for an additional oxygen precipitation at 1000 C. No correlation between the plate-like oxygen precipitates related absorption at 1225 cm{sup -1} and dislocation-related emission has been confirmed. (copyright 2005 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  7. Binary-induced magnetic activity? Time-series echelle spectroscopy and photometry of HD123351 = CZ CVn

    CERN Document Server

    Strassmeier, K G; Weber, M; Granzer, T; Bartus, J; Olah, K; Rice, J B

    2011-01-01

    We present a first and detailed study of the bright and active K0IV-III star HD 123351. The star is found to be a single-lined spectroscopic binary with a period of 147.8919+-0.0003 days and a large eccentricity of e=0.8086+-0.0001. The rms of the orbital solution is just 47 m/s, making it the most precise orbit ever obtained for an active binary system. The rotation period is constrained from long-term photometry to be 58.32+-0.01 days. It shows that HD 123351 is a very asynchronous rotator, rotating five times slower than the expected pseudo-synchronous value. Two spotted regions persisted throughout the 12 years of our observations. Four years of Halpha, CaII H&K and HeI D3 monitoring identifies the same main periodicity as the photometry but dynamic spectra also indicate that there is an intermittent dependence on the orbital period, in particular for Ca ii H&K in 2008. Line-profile inversions of a pair of Zeeman sensitive/insensitive iron lines yield an average surface magnetic-flux density of 54...

  8. Conductive Polymer Binder-Enabled SiO-SnxCoyCz Anode for High-Energy Lithium-Ion Batteries.

    Science.gov (United States)

    Zhao, Hui; Fu, Yanbao; Ling, Min; Jia, Zhe; Song, Xiangyun; Chen, Zonghai; Lu, Jun; Amine, Khalil; Liu, Gao

    2016-06-01

    A SiOSnCoC composite anode is assembled using a conductive polymer binder for the application in next-generation high energy density lithium-ion batteries. A specific capacity of 700 mAh/g is achieved at a 1C (900 mA/g) rate. A high active material loading anode with an areal capacity of 3.5 mAh/cm(2) is demonstrated by mixing SiOSnCoC with graphite. To compensate for the lithium loss in the first cycle, stabilized lithium metal powder (SLMP) is used for prelithiation; when paired with a commercial cathode, a stable full cell cycling performance with a 86% first cycle efficiency is realized. By achieving these important metrics toward a practical application, this conductive polymer binder/SiOSnCoC anode system presents great promise to enable the next generation of high-energy lithium-ion batteries.

  9. Annealing Behavior of New Micro-defects in p-type Large-diameter CZ-Si Crystal

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    New types of defects in 15.24 cm diameter and 20.32 cm diameter Czochralski silicon crystals were found after SCI cleaning. Their annealing behavior was studied. It was suggested that these defects become larger during high temperature annealing and disappear by annealing at 1250℃.

  10. Characterization of defects created in Cz and epitaxial Si doped with Ga or B using Laplace-DLTS

    Energy Technology Data Exchange (ETDEWEB)

    Nyamhere, Cloud [Department of Physics, University of Pretoria, Pretoria 0002 (South Africa)]. E-mail: s24455505@tuks.co.za; Deenapanray, P.N.K. [Centre for Sustainable Energy Systems, FEIT, Australian National University, Canberra ACT 0200 (Australia); Auret, F.D. [Department of Physics, University of Pretoria, Pretoria 0002 (South Africa); Farlow, F.C. [Department of Physics, Wright State University, Dayton, OH (United States)

    2006-04-01

    We have measured the electrical and annealing properties of defects created in epitaxial and Czochralski-grown Si doped with either B or Ga by electron irradiation using both conventional and Laplace deep level transient spectroscopy (L)-DLTS. With L-DLTS, we have been able to resolve several defects that cannot be resolved using conventional DLTS. L-DLTS provides a new avenue to study defect introduction rates and annealing kinetics in B- and Ga-doped Si. The isochronal annealing behaviour of the defects was also investigated.

  11. Dissolution of Oxygen Precipitate Nuclei in n-Type CZ-Si Wafers to Improve Their Material Quality: Experimental Results

    Energy Technology Data Exchange (ETDEWEB)

    Sopori, Bhushan; Basnyat, Prakash; Devayajanam, Srinivas; Tan, Teh; Upadhyaya, Ajay; Tate, Keith; Rohatgi, Ajeet; Xu, Han

    2017-01-01

    We present experimental results which show that oxygen-related precipitate nuclei (OPN) present in p-doped, n-type, Czochralski wafers can be dissolved using a flash-annealing process, yielding very high quality wafers for high-efficiency solar cells. Flash annealing consists of heating a wafer in an optical furnace to temperature between 1150 and 1250 degrees C for a short time. This process produces a large increase in the minority carrier lifetime (MCLT) and homogenizes each wafer. We have tested wafers from different axial locations of two ingots. All wafers reach nearly the same high value of MCLT. The OPN dissolution is confirmed by oxygen analysis using Fourier transform infrared spectra and injection-level dependence of MCLT.

  12. Terrestrial Laser Scanning (TLS as a detection method of the natural river valley microtopography – case study of the Upper Biebrza

    Directory of Open Access Journals (Sweden)

    Brach Marcin

    2014-12-01

    Full Text Available Naziemny skaning laserowy (TLS jako technologia defekcji naturalnej mikrorzeźby doliny rzecznej na przykładzie górnej Biebrzy. Niniejsza praca dotyczy wykorzystania metod Naziemnego Skaningu Laserowego (z ang. TLS - Terrestial Laser Scanning oraz analiz z wykorzystaniem Systemów Informacji Geografi cznej (z ang. GIS - Geographic Information Systems do określenia mikrorzeźby doliny rzecznej na przykładzie fragmentu doliny górnej Biebrzy. Pomiary TLS wykonano dla wybranych poletek pomiarowych zlokalizowanych w obszarze doliny, gdzie występują zbiorowiska turzyc kępowych, których systemy korzeniowe tworzą w połączeniu z namułami charakterystyczne pagórki. Przed wykonaniem skaningu części liściowe roślin zostały usunięte, aby odsłonić pagórki. W wyniku przeprowadzenia skaningu otrzymano obraz mikrorzeźby w postaci chmury punktów, który zwykle nie jest rejestrowany przez Lotniczy Skaning Laserowy (z ang. ALS - Airborne Laser Scanning i jest główną przyczyną niedokładno ści wykonywanego na jego podstawie Numerycznego Modelu Terenu (z ang. DTM - Digital Terrain Model. Na podstawie otrzymanych chmur punktów wygenerowano NMT dla każdego z pól pomiarowych. Otrzymany NMT został poddany fi ltracji różnymi metodami w celu zmniejszenia szumu oraz wypełnienia pustych miejsc modelu powstałych na skutek blokowania wiązki lasera przez kępy roślinności. Pozwoliło to określić strukturę przestrzenna każdego analizowanego poletka.

  13. Op-Ug TD Optimizer Tool Based on Matlab Code to Find Transition Depth From Open Pit to Block Caving / Narzędzie Optymalizacyjne Oparte O Kod Matlab Wykorzystane Do Określania Głębokości Przejściowej Od Wydobycia Odkrywkowego Do Wybierania Komorami

    Science.gov (United States)

    Bakhtavar, E.

    2015-09-01

    In this study, transition from open pit to block caving has been considered as a challenging problem. For this purpose, the linear integer programing code of Matlab was initially developed on the basis of the binary integer model proposed by Bakhtavar et al (2012). Then a program based on graphical user interface (GUI) was set up and named "Op-Ug TD Optimizer". It is a beneficial tool for simple application of the model in all situations where open pit is considered together with block caving method for mining an ore deposit. Finally, Op-Ug TD Optimizer has been explained step by step through solving the transition from open pit to block caving problem of a case ore deposit. W pracy tej rozważano skomplikowane zagadnienie przejścia od wybierania odkrywkowego do komorowego. W tym celu opracowano kod programowania liniowego w środowisku MATLAB w oparciu o model liczb binarnych zaproponowany przez Bakhtavara (2012). Następnie opracowano program z wykorzystujący graficzny interfejs użytkownika o nazwie Optymalizator Op-Ug TD. Jest to niezwykle cenne narzędzie umożliwiające stosowanie modelu dla wszystkich warunków w sytuacjach gdy rozważamy prowadzenie wydobycia metodą odkrywkową oraz wydobycie komorowe przy eksploatacji złóż rud żelaza. W końcowej części pracy podano szczegółową instrukcję stosowanie programu Optymalizator na przedstawionym przykładzie przejścia od wydobycia rud żelaza metodami odkrywkowymi poprzez wydobycie komorami.

  14. Miedź i ołów - zanieczyszczenia historyczne na Rynku Głównym w Krakowie

    Directory of Open Access Journals (Sweden)

    A. Garbacz-Klempka

    2012-12-01

    Full Text Available Zanieczyszczenie środowiska pierwiastkami metalicznymi związane jest z historyczną aktywnością człowieka, szczególnie tą o charakterzeprodukcyjnym, ale ma także genezę w handlu, przetwórstwie i wykorzystywaniu w codziennym życiu przedmiotów metalowych. W czasie badań archeologicznych, prowadzonych w latach 2005 - 2010 w obrębie Rynku Głównego w Krakowie, pozyskano liczne zabytki metalowe, świadczące o obecności surowców metali, głównie miedzi i ołowiu. Równocześnie zarejestrowano szereg zjawisk, potwierdzających obecność w gruncie obszarów o ponadnormatywnej koncentracji pierwiastków metalicznych. Najwyższe kumulacje miedzi i ołowiu obecne są w warstwach gruntu w rejonach związanych z funkcjonowaniem w średniowieczu urzędu Wielkiej Wagi. Zastosowano zarówno metody makro- i mikroskopowych obserwacji artefaktów, badania ich składu chemicznego metodami spektroskopii fluorescencji rentgenowskiej (XRF i fluorescencyjnej analizy rentgenowskiej w mikroobszarach (SEM EDS, jak i oznaczanie zawartości metali wyekstrahowanych z próbek gruntów za pomocą absorpcyjnej spektroskopii atomowej (AAS. Efekty przeprowadzonych badań z zakresu metaloznawstwa i geochemii przyniosły potwierdzenie faktu historycznej obróbki metali na Rynku Głównym w Krakowie, która stanowi główną przyczynę tak znacznego skażenia wielu komponentów środowiska ówczesnego miasta.

  15. Psychoterapia ADHD

    Directory of Open Access Journals (Sweden)

    Artur Kołakowski

    2010-09-01

    Full Text Available Zespół nadpobudliwości psychoruchowej jest jedną z najczęstszych pediatrycznych, neurologicznych i psychiatrycznych przypadłości u dzieci. Większość wytycznych dotyczących postępowania w ADHD sugeruje zastosowanie metod niefarmakologicznych, a dopiero gdy te okażą się nieskuteczne, rozważenie dołączenia leczenia farmakologicznego. Jednak badania pokazują, że w przypadku zarówno skrajnie nasilonego obrazu klinicznego ADHD, jak i towarzyszących zaburzeń zachowania (zaburzenie opozycyjno-buntownicze i poważne zaburzenia zachowania według DSM-IV-TR leczenie farmakologiczne powinno być włączane równocześnie z innymi metodami terapeutycznymi. W ostatnich dwudziestu latach w leczeniu ADHD stosowano wiele metod niefarmakologicznych: terapię indywidualną, grupową, diety restrykcyjne lub suplementacyjne, EEG biofeedback, treningi uwagi, jednak tylko jedna z nich – samodzielnie lub w połączeniu z farmakoterapią – ma potwierdzoną krótkoterminową skuteczność w leczeniu ADHD: behawioralna modyfikacja zachowań. Podobne interwencje powinny być również przeprowadzane w środowisku szkolnym. W chwili obecnej w Polsce – tak jak i w europejskich wytycznych – zaleca się kompleksowe leczenie ADHD, w którym jednym z elementów może być leczenie farmakologiczne. W artykule omówiono kolejne metody, które powinny znaleźć się w takim programie terapeutycznym, poczynając od psychoedukacji pacjenta i rodziny (pacjent oraz rodzice powinni usłyszeć, jaka jest specyfika ADHD, w szczególności uzyskać informacje o trzech osiowych grupach objawów, etiologii, przebiegu, rokowaniu i planowanym leczeniu; wiedza rodziców, opiekunów, członków rodzin i nauczycieli na temat zaburzenia pozwala wdrażać odpowiednie elementy pomocy nadpobudliwemu dziecku, ale także bardzo często zdejmuje z niego „winę za objawy”, edukacji i motywowaniu nastolatka do leczenia, a kończąc na dołączaniu specyficznych rodzaj

  16. Człowiek jako aktor na scenie życia. Teorie G.H. Meada i E. Goffmana a narracyjne gry fabularne

    OpenAIRE

    Ćwiklińska-Surdyk, Dorota; Surdyk, Augustyn

    2012-01-01

    Celem niniejszego artykułu jest wykazanie, iż teoria interakcjonizmu symbolicznego George’a Herberta Meada oraz teoria perspektywy dramaturgicznej Ervinga Goffmana mogą znaleźć zastosowanie w analizie narracyjnych gier fabularnych (ang. role-playing games) poprzez wspólne dla tych teorii koncepcje przyjmowania ról społecznych w interakcjach międzyludzkich. Po zestawieniu zrębów obu teorii ze zjawiskiem narracyjnych gier fabularnych autorzy wskazują na takie cechy tych ostatnich, które mogłyby...

  17. Chemical and electronic interface structure of spray pyrolysis deposited undoped and Al-doped ZnO thin films on a commercial Cz-Si solar cell substrate

    Energy Technology Data Exchange (ETDEWEB)

    Gabas, M.; Ramos-Barrado, J.R. [Dpto. de Fisica Aplicada I, Lab. de Materiales y Superficies, Universidad de Malaga 29071 Malaga (Spain); Barrett, N.T. [CEA DSM/IRAMIS/SPCSI, CEA Saclay, 91191 Gif sur Yvette (France); Gota, S. [Laboratoire Leon Brillouin, UMR 012 CEA-CNRS CEA Saclay, 91191 Gif sur Yvette (France); Rojas, T.C. [Instituto de Ciencia de Materiales de Sevilla, CSIC, Americo Vespucio 49, 41092 Sevilla (Spain); Lopez-Escalante, M.C. [Isofoton S.A., Parque Tecnologico de Andalucia, Severo Ochoa, 50, 29590 Malaga (Spain)

    2009-08-15

    We have studied differences in the interface between undoped and Al-doped ZnO thin films deposited on commercial Si solar cell substrates. The undoped ZnO film is significantly thicker than the Al-doped film for the same deposition time. An extended silicate-like interface is present in both samples. Transmission electron microscopy (TEM) and photoelectron spectroscopy (PES) probe the presence of a zinc silicate and several Si oxides in both cases. Although Al doping improves the conductivity of ZnO, we present evidence for Al segregation at the interface during deposition on the Si substrate and suggest the presence of considerable fixed charge near the oxidized Si interface layer. The induced distortion in the valence band, compared to that of undoped ZnO, could be responsible for considerable reduction in the solar cell performance. (author)

  18. Pożądany i unikany absenteizm członków rodziny w oczekiwaniach osób bezdomnych

    OpenAIRE

    Oliwa-Ciesielska, Monika

    2005-01-01

    The article discusses social exclusion and social inclusion of marginal groups such as homeless people. It examines poverty as such, and why poverty is passed on from one generation to another. Furthermore, the article explains the lifestyle of the homeless, discusses homelessness as a symptom of social adaptation, and presents a view of homelessness as a dramatic way of life for many people, showing kinds of adaptation that can take place in the lives of homeless people. The a...

  19. 商高数的Je(s)manowícz猜想%On Je(s)manowícz's Conjecture Concerning Pythagorean Numbers

    Institute of Scientific and Technical Information of China (English)

    胡永忠; 袁平之

    2010-01-01

    利用Bilu、Hanrot和Voutier关于本原素因子存在性理论及二次丢番图方程解的表示方面的一些精细结果证明:当α=+1,b=2n(n+1),C=2n(n+1)+1时,方程α~x+b~y=c~z仅有正整数解(x,y,z)=(2,2,2).

  20. Growth of Ce:LiYF{sub 4} bulk single crystal with high Ce concentration by Cz method and the scintillation properties

    Energy Technology Data Exchange (ETDEWEB)

    Yokota, Yuui; Yamaji, Akihiro; Kurosawa, Shunsuke [Institute for Materials Research, Tohoku University, Sendai, 9808577 Miyagi (Japan); Kawaguchi, Noriaki; Fukuda, Kentaro [Tokuyama Corp., Sendai, 9893204 Miyagi (Japan); Yoshikawa, Akira [Institute for Materials Research, Tohoku University, Sendai, 9808577 Miyagi (Japan); New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai, 9893204 Miyagi (Japan)

    2012-12-15

    Ce 2% doped LiYF4 [Ce:LYF] bulk single crystal was grown by Czochralski method and the structural phase, crystallinity, optical properties and scintillation properties were investigated. Grown Ce:LYF bulk single crystal included some cracks in the initial part of crystal and meanwhile there were no visible cracks in the center and end parts. Full width of half maximum of X-ray rocking curve on the plate crystal in center part of Ce:LYF bulk single crystal was 81.4 arcsec. Alpha-ray position in the pulse-height spectra under alpha-ray irradiation was almost quarter that of Li-glass(GS20). Decay times of the crystals in center and end parts were 69.9 and 58.3 ns, respectively (copyright 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  1. Resistencia a la corrosión de recubrimientos bicapa VxNbyCz/BixTiyOz depositados sobre acero para herramientas

    OpenAIRE

    Castro Hermosa, Sergio Alexis

    2014-01-01

    El objetivo de este trabajo, es presentar un estudio experimental del comportamiento electroquímico de los recubrimientos bicapa de VXNbYCZ y BiXTiYOZ producidos por medio de un proceso dúplex. En el proceso dúplex, los carburos fueron depositados por el tratamiento TRD y sobre ellos se crecieron películas de BiXTiYOZ usando la técnica de sputtering RF. Los tratamientos TRD se llevaron a cabo en una mezcla fundida, la cual estaba constituida por bórax, ferro-niobio, ferro-vanadio y aluminio; ...

  2. Structural characterisation of a water-soluble polysaccharide from tissue-cultured Dendrobium huoshanense C.Z. Tang et S.J. Cheng.

    Science.gov (United States)

    Si, Hua-Yang; Chen, Nai-Fu; Chen, Nai-Dong; Huang, Cheng; Li, Jun; Wang, Hui

    2017-07-10

    A water-soluble polysaccharide TC-DHPA4 with a molecular weight of 8.0 × 10(5) Da was isolated from tissue-cultured Dendrobium huoshanense by anion exchange and gel permeation chromatography. Monosaccharide analysis revealed that the homogeneous polysaccharide was made up of rhamnose, arabinose, mannose, glucose, galactose and glucuronic acid with a molar ratio of 1.28:1:1.67:4.71:10.43:1.42. The sugar residue sequence analysis based on the GC-MS files and NMR spectra indicated that the backbone of TC-DHPA4 consisted of the repeated units:→6)-β-Galp-(1→6)-β-Galp-(1→4)-β-GlcpA-(1→6)-β-Glcp-(1→6)-β-Glcp-(→. The sugar residue sequences β-Glcp-(1→)-α-Rhap-(1→3)-β-Galp-(1→, β-Glcp-(1→4)-α-Rhap-(1→3)-β-Galp-(1→, β-Galp-(1→6)-β-Manp-(1→3)-β-Galp-(1→, and α-l-Araf-(1→2)-β-Manp-(1→3)-β-Galp-(1→ were identified as the branches attached to the C-3 position of (1→6)-linked galactose in the backbone.

  3. Inżynierowany jedwab pajęczy: inteligentny biomateriał przyszłości. Część I

    Directory of Open Access Journals (Sweden)

    Anna Florczak

    2011-06-01

    Full Text Available Unikalne właściwości nici pajęczej, takie jak wytrzymałość, rozciągliwość, energia pękania (wiązkość, biokompatybilność oraz biodegradowalność spowodowały intensywny rozwój technologii biomateriałów opartych na białkach jedwabiu pajęczego. Postęp badań naukowych był hamowany przez długi czas brakiem metod pozyskiwania odpowiedniej ilości materiału. Przełomem technologicznym było opracowanie strategii biologii molekularnej, które doprowadziło do stworzenia warunków do produkcji inżynierowanych pajęczych białek jedwabiu (IPJ. Strategia ta polega na konstruowaniu sztucznych białek jedwabiu, których sekwencje oparte są na motywach konsensusowych białek naturalnych. Ponadto białka inżynierowane genetycznie, można skonstruować tak, aby nadać im „nowe” funkcje. Strategia białek hybrydowych zakłada, iż IPJ są rdzeniem, nośnikiem, nadającym strukturę, do którego można dołączyć (na poziomie DNA sekwencję nadającą funkcję np. rozpoznającą receptory komórkowe, enzymy, wiążącą metale, cukry i inne. Obecnie prowadzone są intensywne badania, które z jednej strony skupiają się na ustaleniu szczegółowej budowy i zrozumieniu procesu tworzenia się jedwabnej nici w naturze, a z drugiej strony próbuje się udoskonalić metody produkcji IPJ. Dzięki zdobytej wiedzy i rozwojowi powyższej technologii inżynierowany jedwab stanie się „inteligentnym” biomateriałem przyszłości, a otrzymywany na skalę przemysłową wywoła rewolucję biotechnologiczną.

  4. Rhipicephalus (Boophilus) microplus strain Deutsch, 5 BAC clone sequencing, including two encoding Cytochrome P450s and one encoding CzEst9 carboxylesterase

    Science.gov (United States)

    The cattle tick, Rhipicephalus (Boophilus) microplus, has a genome over 2.4 times the size of the human genome, and with over 70% of repetitive DNA, this genome would prove very costly to sequence at today's prices and difficult to assemble and analyze. BAC clones give insight into the genome struct...

  5. Analýza marketingového oddělení společnosti ASBIS CZ, spol. s r. o.

    OpenAIRE

    POŠVECOVÁ, Lenka

    2011-01-01

    The thesis is focused on activities of a marketing department of an IT distributor with a sight of an employee. The aim of the thesis is to analyze current situation, to compare the knowledge with studied professional literature and recommend an appropriate solution in case the marketing department doesn´t work according to the principles of marketing management. Based on the comparison I have to confirm that the department doesn´t fulfill its role according to the marketing strategic plannin...

  6. Low Cost Solar Array Project cell and module formation research area. Process research of non-CZ silicon material. Final report, November 26, 1980-September 30, 1983

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, R.B.

    1983-01-01

    The primary objective of the work reported was to investigate high-risk, high-payoff research areas associated with the Westinghouse process for producing photovoltaic modules using non-Czochralski sheet material. These tasks were addressed: technical feasibility study of forming front and back junctions using liquid dopant techniques, liquid diffusion mask feasibility study, application studies of antireflective material using a meniscus coater, ion implantation compatibility/feasibility study, and cost analysis. (LEW)

  7. Dołącz do nas, czyli jak skutecznie zaistnieć w mediach społecznościowych

    Directory of Open Access Journals (Sweden)

    Milc Piotr

    2016-06-01

    Full Text Available Availability of the Internet in Poland is already so widespread that even the smallest public libraries and branches are present in the web. More and more institutions also create their sites in social media. Building one’s own brand in the Internet, especially in social media, is a long process and requires systematic action. This paper presents short characteristics of the most popular social networking sites in Poland and the basic rules that must be respected by everyone who wants to run a business page in the social network.

  8. Ordering of SiOxHyCz islands deposited by atmospheric pressure microwave plasma torch on Si(100) substrates patterned by nanoindentation

    Science.gov (United States)

    Landreau, X.; Lanfant, B.; Merle, T.; Laborde, E.; Dublanche-Tixier, C.; Tristant, P.

    2011-12-01

    SiO x H y C z nanometric layers are deposited from hexamethyldisiloxane by atmospheric pressure microwave plasma torch on Si(100) substrates submitted to temperatures varying on the range [0 °C; 120 °C]. Atomic force microscopy (AFM) characterizations of samples grown at intermediate substrate temperatures (~30 °C) demonstrate a layer-by-layer growth (Frank van der Merwe growth) leading to smooth flat and compact films while films deposited at lower and higher substrates temperatures show an island-like growth (Volmer-Weber growth) generating a high surface roughness. Concomitantly, a detailed infrared spectroscopy analysis of the growing films evidences structural modifications due to changes in the bond types, Si-O-Si conformation and stoichiometry correlated with scanning electron microscopy and AFM characterizations. Then, deposition conditions and specific microstructure are selected with the aim of generating 3-dimensional SiO x H y C z nanostructure arrays on nanoindented Si (100) templates. The first results are discussed.

  9. Kategoria godności człowieka w świetle hermeneutyki (The concept of human dignity and the hermeneutics

    Directory of Open Access Journals (Sweden)

    Andrzej Bronk

    2012-09-01

    Full Text Available The object of my elementary semiotical and methodological considerations is the place and the function of the concept of human dignity in the hermeneutics of Hans-Georg Gadamer. The notion of human dignity is used today frequently – alas, often uncritically – in many political and ideological discussions as a tool to promote certain kinds of social policy. I am above all interested in the many meanings of the notion of human dignity and the philosophical (ontological and epistemologicalpresuppositions that lie at the bottom of its use. What precisely do we mean when we say that human beings are characterized by a dignity? However, I will not determine precisely the different meanings,past and present, of “human dignity”, much less give a projecting definition of this notion. I devote attention – though only indirectly – to objective questions raised by the notion of human dignity and to their answers as well as to arguments in their favour. When we accept the hermeneutics as a philosophical anthropology then we see also that the notion of human dignity plays a peculiar function in it. In conclusionI state that the thesis that the human being has an ontologically distinctive way of existence finds adequate rational explanation and justification only in philosophy and a non-rational explication and a full justification in Christian theology.

  10. Wychowanie szczęśliwego człowieka podstawowym celem rodziców/ Educating a happy man as the fundamental aim of education

    Directory of Open Access Journals (Sweden)

    EWELINA PIECUCH

    2012-06-01

    Full Text Available There are numerous definitions of education. They are dependent on the concept of who human beings are and what their place in the world is as well as on the conditions of their existence, on what the communities expect of their members, and on what the society expects of an individual. The educational act carried out as part of the process of education can be defined as the actions aimed at altering the behavior of an individual at a particular point in time and in a particular situation. Within the family, bringing up a happy child is the purpose of all educational acts. Contemporary studies on childhood suggest that a happy childhood constitutes a stable foundation allowing for a positive functioning in society. It also increases the chances of adults to maintain the balance in which they were brought up.

  11. Wareniklina – częściowy agonista receptorów nikotynowych w terapii zespołu uzależnienia od alkoholu

    Directory of Open Access Journals (Sweden)

    Natalia Obsada

    2016-06-01

    Full Text Available The pharmacotherapy currently used for alcohol dependence may reduce alcohol consumption and extend abstinence periods. However, it is effective in only about 30% of addicted subjects. Alcohol dependence is often accompanied by tobacco addiction, which can be caused by the fact that both alcohol and nicotine interact with neuronal nicotinic receptors. Experimental studies have been shown that varenicline, a nicotinic α4β2 partial agonist considered to be the most effective drug for smoking cessation, reduces voluntary ethanol intake and alcohol-seeking behaviour in experimental animals. In addition, varenicline reduces alcohol consumption and attenuates alcohol craving among heavily drinking smokers. These effects are probably the result of specific alcohol–medication interactions. Varenicline seems to be a promising therapeutic agent for the treatment of alcohol dependence, especially for subjects addicted to both alcohol and tobacco.

  12. OPTYMALIZACJA SKŁADU BETONÓW Z DODATKIEM METAKAOLINITU

    Directory of Open Access Journals (Sweden)

    Janusz KONKOL

    Full Text Available W artykule przedstawiono wyniki optymalizacji składu betonu modyfikowanego dodatkiem prażonego kaolinitu (metakaolinitu, użytego jako częściowy substytut cementu. Optymalizację przeprowadzono przy użyciu programu STATISTICA w oparciu o wyniki badań betonów o zróżnicowanym składzie, zdeterminowanym udziałem dodatku metakaolinitu do 15% masy spoiwa oraz stosunkiem woda/spoiwo od 0,35 do 0,54. Badania wykonano według centralnego kompozycyjnego planu doświadczenia, przewidującego wykonanie badań dziewięciu mieszanek betonowych o zróżnicowanym składzie. Jako kryteria optymalizacji przyjęto: maksimum wytrzymałości na ściskanie fc po 28, 90 i 180 dniach dojrzewania betonu, maksimum krytycznego współczynnika intensywności naprężeń KIcS i maksimum współczynnika sprężystości podłużnej E po 28 i 180 dniach dojrzewania betonu, minimum objętości porów powietrznych w betonie A oraz minimalny wymiar fraktalny określony metodą cięciwy DC i metodą pudełkową DBC. Objętość porów powietrznych określono na podstawie analizy płaskich przekrojów betonu metodami stereologicznymi. Analizie fraktalnej poddano uzyskane w badaniu odporności na pękanie powierzchnie przełomów betonów. Optymalizację przeprowadzono dla trzech wariantów I, II i III. Uzyskane wyniki potwierdziły występowanie ścisłej zależności między właściwościami a strukturą betonów, w tym betonów z dodatkiem metakaolinitu. Wykazano także, że ze względu na przyjęte kryteria optymalizacji celowe jest projektowanie betonów przy założeniu względnie niskiego stosunku woda/spoiwo oraz względnie dużego udziału dodatku metakaolinitu.

  13. Palingenio e Rej. Alcune osservazioni sulle affinità tra lo Zodiacus vitae e il Wizerunk własny żywota człowieka poczciwego [Palingenius and Rej. A few notes on the associations between Zodiacus vitae (The Zodiac of Life and Wizerunek własny człowieka poczciwego (The Image of a Good Man

    Directory of Open Access Journals (Sweden)

    Ewelina Drzewiecka

    2015-12-01

    Full Text Available "The paper focuses on the relations between two 16th century works: Marcellus Palingenius’ The Zodiac of Life and Mikołaj Rej’s The Image of a Good Man’s Life. The philosophical poem Zodiacus vitae fell into oblivion in Italy, but has gained considerable popularity all over Europe since the 16th century. In Poland all the greatest Renaissance humanists, such as Jan Kochanowski and Mikołaj Rej, knew and read it. The latter, clearly inspired by the work of the Italian master, published The Image of a Good Man’s Life in 1558. Since the 19th century there have been some comparative studies of The Zodiac and The Image in the field of Polish literature. This article presents the current state of the research and points out general similarities and differences between these works, regarding both the story line and philosophy. "

  14. Global thermal simulation of the Tri-Si Cz-process for the production of Si-crystals for the photovoltaics. Final report; Globale thermische Simulation des Tri-Si Cz-Verfahrens zur Herstellung von Si-Kristallen fuer die Photovoltaik. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Friedrich, J.; Mueller, G.

    2003-09-15

    The objective of the present project was to support the project partner SHELL SOLAR during its process development regarding the growth of tri-crystalline Silicium crystals for the photovoltaics by the aid of numerical simulations. For that purpose the software tools, which were available at the beginning of the project, were further developed in order to solve the heat and mass transport problems occurring during the growth of tri-crystalline Silicium crystals by the Czochralski method, as well as their impacts on the formation of crystal defects. The software tools were used to identify and propose the project partner SHELL SOLAR process conditions under which the growth of Silicium crystals is possible at a relatively high growth rate, but at a relatively small deflection of the solid/liquid interface and thus under conditions of relatively small thermal stress. Therefore, a comprehensive study was performed in order to analyze how the thermal conditions depend on the set-up of the growth facility and here especially on the application of heat shields above the melt crucible. Based on the modelling results proposal were made for the construction of the heat shields whose use would result in a higher growth rate at lower interface deflection resp. lower thermal stress as well as at a reduced formation of point defects. Furthermore, parameter studies were carried out to study the influence of magnetic fields on the heat and mass transport during the pulling of the trio-crystalline Silicium crystals. The use of magnetic fields results principally in an improvement of the process regarding higher growth rate and smaller interface deflection. However, the technological and economical effort for the application of magnetic fields is probably too high in comparison to the use of an optimized heat shield. (orig.)

  15. POŠTNI STREŽNIKI IN NJIHOVA KONFIGURACIJA

    OpenAIRE

    Cigelšek, Klemen

    2012-01-01

    V diplomskem delu se najprej seznanimo z metodami, ki so povezane s celotno namestitvijo poštnega strežnika. Nazadnje pa predstavimo namestitev in težave pri namestitvi poštnega strežnika hMailServer v operacijskem sistemu Microsoft Windows in Postfix v operacijskem sistemu Ubuntu.

  16. Dicty_cDB: SHB735 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available CZ283929 |CZ283929.1 cp32e11.f Candida parapsilosis Random Genomic Library Candida parapsilos... 188 4e-80 5 CZ283727 |CZ283727.1 cp31e01.r Candida parapsilosis Random Genomic Library Candida parapsilosis... genomic clone cp31e01, genomic survey sequence. 172 5e-80 6 CZ284282 |CZ284282.1 cp34f03.r Candida parapsilos...is Random Genomic Library Candida parapsilosis genomic clone cp34f03, genomic survey sequence. 172 5e-80 6... CZ288750 |CZ288750.1 cp60a04.f Candida parapsilosis Random Genomic Library Candida parapsilos

  17. Zeta Function of the Projective Curve $aY^{2l} = bX^{2l} + cZ^{2l}$ over a Class of Finite Fields, for Odd Primes

    Indian Academy of Sciences (India)

    N Anuradha

    2005-02-01

    Let and be rational primes such that is odd and the order of modulo is even. For such primes and , and for = , 2, we consider the non-singular projective curves $aY^e = bX^e + cZ^e (abc≠ 0)$ defined over finite fields $F_q$ such that $q = p^ ≡ 1 (\\mathrm{mod} e)$. We see that the Fermat curves correspond precisely to those curves among each class (for = , 2), that are maximal or minimal over $F_q$. We observe that each Fermat prime gives rise to explicit maximal and minimal curves over finite fields of characteristic 2. For = 2, we explicitly determine the -function(s) for this class of curves, over $F_q$, as rational functions in the variable , for distinct cases of , , and , in $F^*_q$. The -function in each case is seen to satisfy the Weil conjectures (now theorems) for this concrete class of curves. For = , 2, we determine the class numbers for the function fields associated to each class of curves over $F_q$. As a consequence, when the field of definition of the curve(s) is fixed, this provides concrete information on the growth of class numbers for constant field extensions of the function field(s) of the curve(s).

  18. Odległe powikłania i częstości reoperacji po zabiegach rekonstrukcji dna miednicy z użyciem materialów syntetycznych

    Directory of Open Access Journals (Sweden)

    Aleksandra Bartuzi

    2011-02-01

    Full Text Available Objectives: Although the efficacy of Prolift® System exceeds 90%, prolapse recurrence and other late postsurgicalcomplications may occur. The aim of the study was to assess the reoperation rate in a group of patientswho underwent Prolift® System procedure due to advanced pelvic organ prolapse. Material and methods: One hundred and eighteen patients who underwent reconstructive surgery withProlift® System due to pelvic organ prolapse were included in the study. Follow-up visits took place 6 weeksand between 3 and 6 as well as 12 months after the primary surgery. Results: Twenty eight patients (23.7%required an additional operation due to late post-surgical complications: 8 (6.8% with de novo SUI, 4 (3.4%with recurrence of SUI, 10 (8.5% with recurrence of prolapse, 1 (0.8% with granuloma and 6 (5.1% with mesherosions. In 8 patients who developed SUI and in 4 with recurrence of SUI, the IVS 04M surgery was performed.Cervix amputation including posterior colporrhaphy was performed in 9 patients with prolapse recurrence andin one woman sacrocolpopexy was done. In the case of mesh erosion and granuloma formation, partial removal of prosthesis and granuloma tissue was done. Analysis of cases with prolapse recurrence revealed that decreaseof urogenital hiatus by additional posterior colporrhaphy can reduce cervix prolapse. Conclusions: Surgery treatment of genital prolapse with synthetic prostheses interposed by the vaginalroute is effective and characterized by a low rate of late post-surgical complications. However, our study showsa certain number of such complications and the majority of them were de novo SUI and apical prolapse recurrence.Concomitant sling SUI treatment with POP correction is not less effective than midurethral sling alone. Morecareful diagnosis of possible occult SUI before treatment and concomitant anti-incontinence procedure mayreduce the incidence of postoperative urinary incontinence.

  19. Norwegian long-term care: Legacies, trends, and controversies - See more at: http://www.gigapp.org/index.php/component/jresearch/?view=publication&task=show&id=1807#sthash.eCzEqbqK.dpuf

    Directory of Open Access Journals (Sweden)

    Daatland, SveinOlav

    2015-02-01

    Full Text Available The NorSpaR project aims to analyse the main public policy initiatives by which Norway and Spain cope with the new social and economic challenges derived from the so-called New Social Risks (NSR. Although both countries present significant differences in their institutional settings (such as Spanish EU membership, or its belonging to diverse welfare regimes types (Norway is generally included in the Nordic regime, while Spain is part of the Mediterranean one, both countries share a common interest in addressing the aforementioned challenges while maintaining social cohesion. In the last decade, governments in both countries have tried to respond to those challenges by reforming their labour markets, adapting their unemployment schemes, as well as their gender, family and long-term care policies. The analysis covered in this project includes three areas of public policy addressing NSR. First, dependency is one of the most daunting challenges for post-industrial societies experiencing population ageing and with an increasing number of frail people in need of care. This situation is forcing governments to rethink their long-term care policies. Second, family and gender public programs need to respond to the growing difficulties of families in reconciling professional and family life. Third, in the transition to a post-industrial order, and in a context of mass unemployment, social protection systems have a renewed prominence. Along with the so-called passive policies offering financial support to the unemployed, active labour market policies are geared to put people back into work. In our analysis we try to find answers to the following questions: What are the challenges that each of these policies have been trying to address in recent years? How have these policies evolved? What kinds of reforms have been implemented, and which ones have been neglected? Have the policy goals and targets of welfare programs been modified in any significant way? Have the policy tools (services, transfers, funding or models of provision changed? To what extent have these policies been successful in coping with social and economic problems? To what extent a social demand in favour of these changes exist? What are the main political and social actors intervening as stakeholders in these policies? Finally, what are the major similarities and differences existing between the two countries? To what extent are there policy proposals that might easily travel between them? Could they foster mutually enriching exchanges of information? - See more at: http://www.gigapp.org/index.php/component/jresearch/?view=publication&task=show&id=1807#sthash.GBgfdaqa.dpuf

  20. Small violations of 3 x 3 unitarity, the phase in B{sup 0}{sub s}- B-bar {sup 0}{sub s} mixing and visible t -> cZ decays at the LHC

    Energy Technology Data Exchange (ETDEWEB)

    Botella, Francisco J; Branco, Gustavo C [Departament de Fisica Teorica and IFIC, Universitat de Valencia - CSIC, E-46100, Burjassot (Spain); Nebot, Miguel, E-mail: Francisco.J.Botella@uv.e, E-mail: gbranco@ist.utl.p, E-mail: nebot@roma3.infn.i [Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma Tre, and Dipartimento di Fisica ' Edoardo Amaldi' , Universita degli Studi Roma Tre, I-00146, Roma (Italy)

    2009-06-01

    We show that it is possible to accommodate the observed size of the phase in B{sub s}{sup 0}- B-bar {sub s}{sup 0} mixing in the framework of a model with violation of 3 x 3 unitarity. This violation is associated to the presence of a new Q = 2/3 isosinglet quark T, which mixes both with t and c and has a mass not exceeding 500 GeV. The crucial point is the fact that this framework allows for chi ident to arg(-V{sub ts}V{sub cb}V*{sub tb}V*{sub cs}) of order lambda, to be contrasted with the situation in the Standard Model, where chi is constrained to be of order lambda{sup 2}. We point out that this scenario implies rare top decays t->cZ at a rate observable at the LHC and |V{sub tb}| significantly different from unity. In this framework, one may also account for the observed size of D{sup 0}- D-bar {sup 0} mixing without having to invoke long distance contributions. It is also shown that in the present scenario, the observed size of D{sup 0}- D-bar {sup 0} mixing constrains chi' ident to arg(-V{sub cd}V{sub us}V{sub cs}*V*{sub ud}) to be of order lambda{sup 4}, which is significantly smaller than what is allowed in generic models with violations of 3 x 3 unitarity.

  1. 微晶硅/晶体硅HIT结构异质结太阳电池的模拟计算与分析%Simulation and Analysis of μc-Si :H/CZ-Si Heterojunction Hit Solar Cells

    Institute of Scientific and Technical Information of China (English)

    韩兵; 周炳卿; 郝丽媛; 王立娟; 那日苏

    2010-01-01

    运用AFORS-HET程序模拟分析μc-Si(p)/μc-Si(i)/c-si(n)HIT结构异质结太阳电池的光伏特性,并研究发射层厚度、本征层厚度、本征层能隙宽度、界面态密度以及能带失配等参数对太阳能电池光伏特性的影响,计算结果表明:插入5nm较薄微晶硅本征层,电池的转换效率最佳;随着微晶硅本征层厚度增加,电池性能降低,电池的界面缺陷态显著影响电池的开路电压和填充因子,对能带补偿情况进行模拟分析,结果显示,随着价带补偿(△Ev)的增大,由界面态所带来的电池性能的降低逐渐被消除,当△Ev=0.25 eV时,界面态带来的影响几乎完全消除,通过优化各参数,获得微晶硅/晶体硅HlT结构异质结太阳能电池的最佳转换效率为19.86%.

  2. Wpływ wybranych czynników środowiskowych na maksymalny przepływ nosowy wdechowy - część projektu ECAP (Epidemiologia Chorób Alergicznych w Polsce).

    Science.gov (United States)

    Krzych-Fałta, Edyta; Furmańczyk, Konrad; Piekarska, Barbara; Sybilski, Adam; Samoliński, Bolesław

    2017-02-28

    Celem niniejszej pracy była próba określenia wpływu wybranych czynników/parametrów na wynik maksymalnego przepływu nosowego wdechowego (PNIF, ang. peak nasal inspiratory flow) w badanej populacji polskiej projektu Epidemiologia Chorób Alergicznych w Polsce (ECAP). Materiał/metody: Badaną populację stanowiła grupa dzieci w wieku 6-7 lat (n=1123), młodzieży w wieku 13-14 lat (n=1136) oraz dorosłych (n=1876) zamieszkałych w siedmiu dużych polskich miastach. W badaniu posłużono się pomiarem maksymalnego przepływu nosowego wdechowego (PNIF). Do oceny wpływu wybranych czynników na wartości PNIF wykorzystano przetłumaczone i walidowane kwestionariusze opracowane na potrzeby światowych badań ECRHS II (European Community Respiratory Health Survey II) i ISAAC (International Study of Asthma and Allergies in Childhood). Wyniki: Określone warunki wewnątrz gospodarstwa domowego, m.in. ogrzewanie węglem, drewnem lub piecem gazowym, istotnie zwiększają przekrwienie błony śluzowej nosa. W grupie biernych palaczy PNIF był niższy niż w grupie czynnych palaczy. Wskaźnik PNIF malał wraz ze wzrostem liczby domowników palących papierosy. Wnioski: Wybrane czynniki środowiska.

  3. Penetration Mechanism of Cube-shaped Fragment for LY-12cz Thin Sheet%立方体破片对LY-12cz薄靶板的侵彻机理

    Institute of Scientific and Technical Information of China (English)

    潘庆军; 曾庆韬

    2011-01-01

    对高速立方体破片与飞机硬铝薄靶板的遭遇打击情况进行了模拟计算分析,得到了破片以不同的入射速度和攻角高速打击靶板时,靶板上的损伤情况以及破片的剩余速度、剩余质量、塞块质量以及塑性变形区域等随破片入射速度与攻角的变化规律,可用于分析破片的破坏能力及飞机结构的防护能力.

  4. Analýza a návrh informačního systému pro firmu eSports.cz, s.r.o.

    OpenAIRE

    Kobelka, Michal

    2015-01-01

    Diplomová práce se zabývá analýzou a návrhem informačního systému pro firmu eSports, s.r.o. První kapitola předkládá teoretická východiska nutná k pochopení celé problematiky. Druhá kapitola posuzuje současný stav společnosti eSports, s.r.o. a analyzuje hlavní firemní procesy. V poslední kapitole jsou předloženy návrhy datového modelu nového informačního systému. The master's thesis deals with analysis and design of information system for company eSports, s.r.o. First chapter presents theo...

  5. Majeutyczny autoportret – obraz człowieka w hermeneutycznej praxis Kierkegaarda (The maieutical self-portrait – the idea of human being in Soren Kierkegaard’s hermeneutical praxis

    Directory of Open Access Journals (Sweden)

    Jaromir Brejdak

    2012-09-01

    Full Text Available From the theologian Wilhelm Herrmann, who influenced both Rudolf Bultmann and Martin Heidegger comes the formulation that we can say about the God only as much as He did to and with us. In the article above I try to show that the same can be said about the human being and its idea: all we can atribute to it is what we have experienced. It means: a theologia experientiae implies an antropologia experientiae, a certain anthropology of experience and from an experience. I try to describe it in relation to the existential maieutics of Kierkegaard. What I claim is: a reliable idea of man is without such an existential maieutics not possible.

  6. Seeking the aetiology of autistic spectrum disorder. Part 2: functional neuroimaging [W poszukiwaniu przyczyn zaburzeń ze spektrum autyzmu – neuroobrazowanie funkcjonalne (część II

    Directory of Open Access Journals (Sweden)

    Bryńska, Anita

    2012-12-01

    Full Text Available Multiple functional imaging techniques help to a better understanding of the neurobiological basis of autism-spectrum disorders (ASD. The early functional imaging studies on ASD focused on task-specific methods related to core symptom domains and explored patterns of activation in response to face processing, theory of mind tasks, language processing and executive function tasks. On the other hand, fMRI research in ASD focused on the development of functional connectivity methods and has provided evidence of alterations in cortical connectivity in ASD and establish autism as a disorder of under-connectivity among the brain regions participating in cortical networks. This atypical functional connectivity in ASD results in inefficiency and poor integration of processing in network connections to achieve task performance. The goal of this review is to summarise the actual neuroimaging functional data and examine their implication for understanding of the neurobiology of ASD.

  7. Composita wewnątrzwspólnotowe – wyrazy złożone z cząstką евро- w języku bułgarskim

    Directory of Open Access Journals (Sweden)

    Natalia Długosz

    2015-08-01

    Full Text Available Intracommunitary compositas – compounds with евро- particle in Bulgarian From the observation of a contemporary Bulgarian word formation system results that the number of compounds which significant part is developed basing on new productive models is constantly increasing. Therefore the subject of this article constitute Bulgarian compounds with a disintegrated particle евро- that are thematically connected with the process of European Integration. I begin the analysis from the description of compositas’ word formation construction. Then I go to semantic dissertation (I make an attempt to classify all mentioned structures thematically and I create a dictionary definition of the евро- particle and on to stylistic ones (I pay special attention to the functioning of the discussed units both in a text, and in a lexical system.

  8. Transliteration und Analyse zweier Textpassagen aus dem Chamail von Aleksander Aleksandrowicz: „Opisanie dni miesięcznych“ und „Jakiego dnia znajduje się dusza w człowieku“

    Directory of Open Access Journals (Sweden)

    Insa J. Klemme

    2013-09-01

    Full Text Available This paper investigates the language of the so-called Aleksander Aleksandrowicz Chamail, a 19th-century manuscript by Polish-Lithuanian Tatars kept by the Departmental Library of Arabic and Islamic Studies at Warsaw University (without signatory. The manuscript’s main language has been identified as Polish written in Arabic script, although it contains traces of dialect, East Slavic interference and archaisms, as shown by the transliteration of two textual passages into Latin characters as well as by an accurate graphemic and phonemic analysis.

  9. The Impact of the Estimation of the Parameters Values on the Accuracy of Predicting the Impacts of Mining Exploitation / Wpływ Oszacowania Wartości Parametrów Modelu Na Dokładność Prognozowania Wpływów Eksploatacji Górniczej

    Science.gov (United States)

    Niedojadło, Zygmunt; Gruszczyński, Wojciech

    2015-03-01

    The possibility of the assessment of the probability that the acceptable values of deformation indexes will be exceeded and the introduction of the coefficient of safety are more and more seriously considered in case of predicting the impacts of exploitation both on the surface and the shaft tube. This article presents the mentioned above issue focusing on the authors' project of the exploitation in the protective pillars of the shafts of the Legnica and Głogów Copper Area (LGOM). To assess the accuracy of the predicted deformation indexes Monte Carlo method (often used in statistics) was proposed as well as the strict and approximate analysis using the law of error propagation. The values of vertical strains were analysed, as the most important at the assessment of the state of deformation of the shaft tube. The comparison of the results obtained with different methods confirmed the correctness of the carried out calculations. The applied methods allowed the analysis of the impact of individual parameters of the model on the prediction of the accuracy of forecast. This article makes the continuation of the solutions of the article (Niedojadło & Gruszczyński, 2010) thus some contents essential for the continuity of understanding were repeated here. Możliwość oceny prawdopodobieństwa przekroczenia dopuszczalnych wartości wskaźników deformacji oraz wprowadzenie współczynnika bezpieczeństwa coraz częściej są brane pod uwagę w przypadku prognozowania wpływów eksploatacji tak na powierzchnię jak i rurę szybową. W niniejszym artykule przedstawiono powyższe zagadnienie na przykładzie autorskiego projektu eksploatacji w filarach ochronnych szybów LGOM. Do oceny dokładności prognozowanych wskaźników deformacji zaproponowano wykorzystywaną w statystyce metodę Monte Carlo oraz analizę ścisłą i przybliżoną wykorzystującą prawo przenoszenia się błędów średnich. Analizowano wartości odkształceń pionowych, jako najistotniejsze przy

  10. Integrated Interdisciplinary Science of the Critical Zone as a Foundational Curriculum for Addressing Issues of Environmental Sustainability

    Science.gov (United States)

    White, Timothy; Wymore, Adam; Dere, Ashlee; Hoffman, Adam; Washburne, James; Conklin, Martha

    2017-01-01

    Earth's critical zone (CZ) is the uppermost layer of Earth's continents, which supports ecosystems and humans alike. CZ science aims to understand how interactions among rock, soil, water, air, and terrestrial organisms influence Earth as a habitable system. Thus, CZ science provides the framework for a holistic-systems approach to teaching Earth…

  11. Pogodba o zdravljenju

    OpenAIRE

    Čater, Amadej

    2016-01-01

    V diplomski nalogi je obravnavana pogodba o zdravljenju. Pogodba o zdravljenju je inominatna pogodba obligacijskega prava, ki v pravnih virih Republike Slovenije ni neposredno urejena. Gre za dvostransko oz. bilateralno sinalgmatično pogodbo, ki je lahko odplačna ali neodplačna. Stranki pogodbe sta zdravnik in pacient, kjer prvi s svojim znanjem in strokovnimi metodami skuša ozdraviti drugega ali pa mu nudi določeno medicinsko storitev. Skleneta jo lahko izrecno, s podpisom pogodbe o zdravlje...

  12. Modele produkcji sprzedanej przemysłu w ujęciu metod sztucznej inteligencji

    OpenAIRE

    Wąsikowska, Barbara

    2010-01-01

    W ostatnich latach wraz z dynamicznym rozwojem informatyki i dostarczanych przez nią coraz to większych mocy obliczeniowych obserwuje się ogromny wzrost zainteresowania metodami sztucznej inteligencji w takich dziedzinach, jak: finanse, medycyna, zastosowania inżynierskie, geologia czy fizyka. W obszarze ekonomii metody te znajdują zastosowanie w prognozowaniu bankructw, notowań giełdowych, kursów walut, wskaźników finansowo-ekonomicznych, klasyfikacji przedsiębiorstw, wycenie kontraktów term...

  13. Podaljšanje kronologije širin branik bukve iz območja Gorjancev

    OpenAIRE

    Ercek, Borut

    2014-01-01

    Izvedli smo dendrokronološke raziskave bukve (Fagus sylvatica L.) z območja Gorjancev. V raziskavo smo zajeli bukova drevesa iz okolice Krvavega Kamna in zgodovinske objekte z Dolža in okolice. Analizo širin branik smo opravili v skladu s standardnimi metodami na vzorcih iz 12 bukovih dreves in na 53 vzorcih iz 7 zgodovinskih objektov. S pomočjo zaporedij širin branik bukovih dreves smo sestavili kronologijo, dolgo 107 let, s pokritostjo nad 6 v obdobju 1898-2004. Podaljšali smo jo s kronolog...

  14. Assessment of the influence of composts on microbiological and biochemical parameters of substrates and the morphological traits of scarlet sage / Ocena wpływu kompostów na parametry mikrobiologiczne i biochemiczne podłoży oraz cechy morfologiczne szałwii błysz czącej

    Directory of Open Access Journals (Sweden)

    Wolna-Maruwka Agnieszka

    2015-09-01

    Full Text Available Celem badań była ocena stanu mikrobiologicznego (liczba bakterii heterotrofi cznych, promieniowców, pleśni i biochemicznego (aktywność ureazy i fosfatazy kwaśnej torfu z domieszką kompostów wytworzonych na bazie osadu ściekowego. Ponadto celem badań było wykazanie wpływu niniejszych podłoży na cechy morfologiczne szałwii błyszczącej (wysokość, liczba i długości pędów, liczba pąków i kwiatostanów, indeks zazielenienia (SPAD. Komposty wyprodukowane z osadu ściekowego, słomy pszennej, kukurydzianej i łubinowej zmieszano z torfem w różnym udziale procentowym, od 25% do 75%.

  15. Zapożyczenia litewskie oznaczające skłonności i stany człowieka oraz sposoby wyrażania czułości lub niechęci (na materiale gwar polskich na Litwie

    Directory of Open Access Journals (Sweden)

    Krystyna Rutkowska

    2015-07-01

    Full Text Available Lithuanian borrowings denoting human states, dispositions and the ways of expressing frankness and unwillingness (based on the material of Polish dialects in Lithuania The present article is a continuation of the previous studies (Rutkowska, 2009, 2010 dedicated to Lithuanian borrowings. Two previous articles have been related to human appearance and mental characteristics. The subject of the present article is Lithuanian borrowings which describe specific human dispositions and mental states, as well as the usage of epithets and the ways of addressing other people (terms of endearment. The lexical material of the article and vocabulary analyzed previously allows to state that the words referring to man make up a group of fairly large vocabulary of Lithuanian origin. It has been observed that words of such semantic categories as agriculture, weaving, fishery, construction are characterized nowadays as archaic because of the disappearance of a particular type of folk culture and changes in the field of rural activities. However, different ways of describing a person are still present in various dialect areas. A varying degree of adaptation of borrowed lexemes suggests that the penetration of such lexemes was a continuous process, which lasted throughout the period of the contact of Polish and Lithuanian dialects, and this process is continuing at the present day. The reason for the linguistic behavior of this type of Lithuanian words in Polish dialects is semantic capacity and expressiveness of these lexemes.   Литуанизмы, обозначающие состояния и склонности человека, а также способы выражения им нежности или пренебрежения (на материале польских говоров в Литве Данная статья является продолжением предыдущих исследований, посвященных заимствованиям из литовского языка, характеризующим человека (Rutkowska, 2009, 2010. Две предыдущих статьи были посвящены анализу лексики, определяющей внешний облик и черты характера человека. Предметом исследования в данной статье являются слова, связанные с типичными склонностями человека, а также афектонимы и прозвища. Лексика, представленная в трех очередных статьях, свидетельствует о многочисленности заимствований данной лексико-семантической группы и ее продуктивности. Если слова, принадлежащие к таким семантическим категориям, как земледелие, ткачество, строительство, характеризуются архаичностью в силу перемен, происходящих в сельскохозяйственной сфере жизни, то названия, определяющие человека, и в дальнейшем употребляются на разных диалектных ареалах Литвы. Различная степень адаптации данных лексем свидетельствует о том, что процесс проникновения заимствованной лексики был длительным и существовал на протяжениии всего периода контактирования польских и литовских говоров, активно подолжается и в настоящее время. Причиной сохранения в польских говорах данной лексики является ее антропоцентризм, семантическая наполненность

  16. ADM1-based modeling of anaerobic codigestion of maize silage and cattle manure – calibration of parameters and model verification (part II / Modelowanie kofermentacji kiszonki kukurydzy i obornika bydlęcego za pomocą ADM1 – kalibracja i weryfikacja modelu (część II

    Directory of Open Access Journals (Sweden)

    Bułkowska Katarzyna

    2015-09-01

    Full Text Available Celem pracy było wykorzystanie modelu ADM1xp do symulacji procesu kofermentacji kiszonki kukurydzy i obornika bydlęcego. Przydatność modelu oceniano wykorzystując dane z eksperymentu w skali laboratoryjnej. Badania prowadzono przy obciążeniu komory ładunkiem organicznym OLR = 2,1 gVS dm-3·d-1 oraz hydraulicznym czasie zatrzymania wsadu w fermentorze, HRT = 45d. Z powodu dużej liczby parametrów w modelu ADM1xp, zastosowano procedurę, która umożliwia zmniejszenie liczby weryfi kowanych parametrów podczas kalibracji. Najlepsze dopasowanie danych eksperymentalnych do modelowych uzyskano po weryfikacji 9 spośród 105 stechiometrycznych i kinetycznych parametrów. Wartości współczynnika dopasowania (Jc zmieniały się w zakresie od 0,003 (kwas walerianowy do 211 (produkcja biogazu.

  17. Assessment Index System and Comprehensive Assessment Methodology for Counselors' Performance in Institutions of Higher Education——Taking CZ University as an Example%高校辅导员工作绩效评价指标体系及综合评价方法——以CZ学院为例

    Institute of Scientific and Technical Information of China (English)

    王小婷; 李琳

    2011-01-01

    辅导员工作绩效评价是加强辅导员队伍建设,促进辅导员业务水平和工作质量提升的关键。本文从CZ学院学生工作发展任务和辅导员队伍建设目标出发,在问卷调查的基础上构建一套辅导员工作绩效考核指标体系并给出综合评价方法,以期为CZ学院辅导员队伍建设和学生工作管理提供一定的借鉴和参考。%The assessment of counselors' performance is the key to the augmenting of counseling staff and also vital to the increase of their professional skills and performance quality.Aiming at strengthening the development of student affairs management and the team of counselors,this paper tries to put forward an assessment index system for counselors' performance and bring about a comprehensive assessment methodology in the hope of providing some reference for the counseling staff building and student affairs management in Cuzhou University.

  18. A Study of Professional Happiness of the Grass-roots Management Personnel in Campus—Taking CZ University as an Example%高校基层管理人员职业幸福感研究——以CZ大学为例

    Institute of Scientific and Technical Information of China (English)

    马雪荣

    2013-01-01

    职业幸福感是人们在从事某职业时基于自我需要得到满足和自身价值得到体现所获得的持续性的快乐体验.通过研究,了解到高校基层管理人员总体幸福感处在中等偏上水平,但普遍职业认同感不强、自我实现感不高,校方应加强人性化管理和提供业务进修机会,职员需加强自我学习并融入和谐团队以积极应对.

  19. The construction of application-oriented university entrepreneurship education system--A case study of CZ College%浅析应用型本科高校创新创业教育体系的构建--以CZ学院为例

    Institute of Scientific and Technical Information of China (English)

    白绍业

    2014-01-01

    To strengthen the innovation and entrepreneurship education of applied undergraduate colleges and universities is the basic requirement to promote the construction of innovation oriented country, deepen the reform of higher education, enhance the fundamental need of college students' comprehensive quality. Colleges and universities must be clear of innovation and entrepreneurship education target, integrate the innovation and entrepreneurship education into the training system, from the reality of school, explore the cultivation mode has its own characteristics, open innovation and entrepreneurship education, construct the scientific and reasonable entrepreneurship education system.%应用型本科高校加强创新创业教育是推进创新型国家建设、深化高等教育改革、提升大学生综合素质的根本需要。高校必须明确创新创业教育的目标,将创新创业教育融入人才培养体系中,从学校实际出发,探索形成具有自己的特色的、开放性的创新创业教育人才培养模式,构建科学合理的创新创业教育体系。

  20. ADM1-based modeling of anaerobic codigestion of maize silage and cattle manure – a feedstock characterisation for model implementation (part I / Modelowanie kofermentacji kiszonki kukurydzy i obornika bydlęcego za pomocą ADM1 – charakterystyka wsadu surowcowego (część I

    Directory of Open Access Journals (Sweden)

    Klimiuk Ewa

    2015-09-01

    Full Text Available W pracy przedstawiono wyniki stężenia substancji chemicznych rozpuszczonych i nierozpuszczonych w mieszaninie kiszonki kukurydzy zwyczajnej i obornika bydlęcego (49:51% suchej masy organicznej, który wykorzystano jako substrat do wytwarzania biogazu. Do frakcjonowania nierozpuszczalnych związków organicznych, stanowiących kompozyt (Xc, wykorzystano metodę Weender’a. Udział poszczególnych frakcji (jako ChZT w kompozycie wyniósł: białka - 0,111, tłuszcze - 0,048, węglowodany - 0,500 oraz związki inertne - 0,341. Stężenie związków biodegradowalnych w kompozycie wyniosło 68%. Na podstawie bilansu materiałowego węgla i azotu obliczono, że stężenie węgla w kompozycie wynosi 0,0326 kmol C kg-1 ChZT, zaś azotu 0,0018 kmol N kg-1 ChZT. Odczyn (pH wsadu surowcowego wyznaczony z równowagi kwasowo-zasadowej odpowiadał rzeczywistemu, tj. 7,14.

  1. Wpływ simazyny na zawartość niektórych składników w częściach nadziemnych żyta na tie zróżnicowanego nawożenia azotoiwgo [Influence of simazine on contents of some constituents in tops of rye plants on the background of various nitrogen fertilization

    Directory of Open Access Journals (Sweden)

    M. Płoszyński

    2015-06-01

    Full Text Available Simazine retarded yields and provoked in tops of rye the increase of total nitrate and potassium. Protein nitrogen and phosphorus contet increased in smaller scale. The above effects were more distinct in treatments with smaller level of nitrogen fertilization. During vegetation period toxic action of preparation to rye decreased.

  2. Determination of Critical Conditions of Spontaneous Combustion of Coal in Longwall Gob Areas / Wyznaczanie Warunków Krytycznych Samozapalania Węgla W Zrobach Ścian

    Science.gov (United States)

    Cygankiewicz, Janusz

    2015-09-01

    pożaru niektórych warunków panujących w danym miejscu kopalni, takich jak: - skłonność węgla do samozapalania - zawartość tlenu w powietrzu dopływającym do zagrzewającego się węgla. W pracy przedstawiono numeryczną metodę wyznaczania warunków krytycznych samozapalania węgla w zrobach ścian, czyli takich po spełnieniu których może dojść do samozapalenia. Przyjęto, że znajdujący się w zrobach rozkruszony węgiel ma kształt płaskiej warstwy, sąsiadującej od stropu i spągu ze skałami. Rozważania ograniczono do węgli charakteryzujących się niską zawartością wilgoci. Przyjęto prosty model kinetyki utleniania na powierzchni węgla wyrażony równaniem Arrheniusa. Model ten zakłada niezależność szybkości utleniania od ilości tlenu pochłoniętego przez węgiel. Szybkość reakcji zależy jedynie od temperatury , przy czym występujące w równaniu parametry zmieniają się po osiągnięciu przez węgiel temperatury krytycznej. W artykule przedstawiono matematyczny model samozagrzewania warstwy węgla w zrobach opisujący bilans ciepła w węglu oraz bilans tlenu i bilans ciepła w przepływających gazach. Tworzące model układy równań różniczkowych cząstkowych rozwiązywane są metodami numerycznymi. Opracowany program komputerowy umożliwia wykonywanie stosownych obliczeń. W pracy, na przykładzie węgla z pokładu 405 , przedstawiono sposób wyznaczania warunków krytycznych warstwy rozkruszonego węgla: grubości warstwy, zawartości tlenu w przepływających przez warstwę gazach oraz przewodności cieplnej otaczających skał.

  3. Nijmegen breakage syndrome (NBS

    Directory of Open Access Journals (Sweden)

    Chrzanowska Krystyna H

    2012-02-01

    -causing mutations in both alleles of the NBN gene are known. No specific therapy is available for NBS, however, hematopoietic stem cell transplantation may be one option for some patients. Prognosis is generally poor due to the extremely high rate of malignancies. Zespół Nijmegen (Nijmegen breakage syndrome; NBS jest rzadkim schorzeniem z wrodzoną niestabilnością chromosomową dziedziczącym się w sposób autosomalny recesywny, charakteryzującym się przede wszystkim wrodzonym małogłowiem, złożonymi niedoborami odporności i predyspozycją do rozwoju nowotworów. Choroba występuje najczęściej w populacjach słowiańskich, w których uwarunkowana jest mutacją założycielską w genie NBN (c.657_661del5. Do najważniejszych objawów zespołu zalicza się: małogłowie obecne od urodzenia i postępujące z wiekiem, charakterystyczne cechy dysmorfii twarzy, opóźnienie wzrastania, niepełnosprawność intelektualną w stopniu lekkim do umiarkowanego oraz hipogonadyzm hipogonadotropowy u dziewcząt. Na obraz choroby składają się także: niedobór odporności komórkowej i humoralnej, który jest przyczyną nawracających infekcji, znaczna predyspozycja do rozwoju nowotworów złośliwych (zwłaszcza układu chłonnego, a także zwiększona wrażliwość na promieniowanie jonizujące. Wyniki badań laboratoryjnych wykazują: (1 spontaniczną łamliwość chromosomów w limfocytach T krwi obwodowej, z preferencją do rearanżacji chromosomów 7 i 14, (2 nadwrażliwość na promieniowanie jonizujące lub radiomimetyki, co można wykazać metodami in vitro, (3 radiooporność syntezy DNA, (4 hipomorficzne mutacje na obu allelach genu NBN, oraz (5 brak w komórkach pełnej cząsteczki białka, nibryny. Małogłowie i niedobór odporności występują także w zespole niedoboru ligazy IV (LIG4 oraz w zespole niedoboru NHEJ1. Rodzice powinni otrzymać poradę genetyczną ze względu na wysokie ryzyko (25% powtórzenia się choroby u kolejnego potomstwa. Możliwe jest

  4. Measurement of Small Values of Hydrostatic Pressure with the Compensation of Atmospheric Pressure Influence / Pomiar Małych Wartości Ciśnienia Hydrostatycznego Z Kompensacją Wpływu Ciśnienia Atmosferycznego

    Science.gov (United States)

    Broda, Krzysztof; Filipek, Wiktor

    2013-09-01

    structure has been simplified and the measurement accuracy has increased. Znajomość rozkładu ciśnienia (lub różnicy ciśnień) determinuje opis przepływu płynu przez ośrodek porowaty. W przypadku dużych liczb Reynoldsa nie nastręcza to większych trudności, lecz dla przepływów laminarnych (tj. dla liczb Re (Bear, 1988; Duckworth, 1983; Troskolański, 1957) z zakresu 0.01 do 3) jest to praktycznie niemożliwe w oparciu o dostępne na rynku przyrządy. Przyczyny powodujące taką sytuację zostały omówione w poprzednim opracowaniu (Broda i Filipek, 2012), w którym zwrócono uwagę na trudności pomiarów związane z napięciem powierzchniowym czy włoskowatością (Adamson, 1997). Zaproponowano (Broda i Filipek, 2012) nową, autorską metodę pomiaru bardzo małych różnic ciśnień oraz skonstruowano odpowiednie stanowisko składające się z dwóch oddzielnych zbiorników pomiarowych oraz przeprowadzono pomiary. Z przeprowadzonych badań (Broda i Filipek, 2012) wynikała konieczność zastosowania stabilizacji temperatury urządzenia oraz kompensacji wpływu ciśnienia atmosferycznego na proces pomiarowy. Niniejsza publikacja przedstawia wyniki kontynuacji badań nad metodami i aparaturą do pomiaru bardzo małych różnic ciśnień z uwzględnieniem zdobytych doświadczeń, w oparciu o nowe stanowisko pomiarowe, którego zasadę działania i budowę przedstawiono na rys. 1-5, kolejno przedstawiając koncepcję wykonania pomiaru małych wartości ciśnienia hydrodynamicznego z kompensacją wpływu ciśnienia atmosferycznego rys. 1; ilustrację obrazującą stan odpowiadający przypadkowi braku przepływu płynu przez badany obiekt rys. 2; omawiając stan odpowiadający przypadkowi przepływu płynu przez badany obiekt rys. 3. Kolejno omówiono stan odpowiadający pomiarowi spadku ciśnienia na badanym obiekcie rys. 4 oraz przedstawiono metodykę pomiaru (zależności (1) - (20)). Zdjęcie stanowiska badawczego oraz jego elementów ilustruje rys. 5. W

  5. Strength characteristics of light weight concrete blocks using mineral admixtures

    Science.gov (United States)

    Bhuvaneshwari, P.; Priyadharshini, U.; Gurucharan, S.; Mithunram, B.

    2017-07-01

    This paper presents an experimental study to investigate the characteristics of light weight concrete blocks. Cement was partially replaced with mineral admixtures like Fly ash (FA), limestone powder waste (LPW), Rice husk ash (RHA), sugarcane fiber waste (SCW) and Chrysopogonzizanioides (CZ). The maximum replacement level achieved was 25% by weight of cement and sand. Total of 56 cubes (150 mm x 150 mm x150 mm) and 18 cylinders (100mmφ and 50mm depth) were cast. The specimens being (FA, RHA, SCW, LPW, CZ, (FA-RHA), (FA-LPW), (FA-CZ), (LPW-CZ), (FA-SCW), (RHA-SCW)).Among the different combination, FA,FA-SCW,CZ,FA-CZ showed enhanced strength and durability, apart from achieving less density.

  6. Automatizace technologického projektování

    OpenAIRE

    Pavlíček, Michal

    2008-01-01

    Diplomová práce se zabývá návrhem programu, který provádí technologa-projektanta základními úkoly spojenými s technologickým projektováním. Zabývá se metodami kapacitních propočtů a metodami technologického projektování. Tyto metody byly implementovány v programu Excel umožňujícího výpočet kapacitních propočtů a v programu AutoCAD obsahující kreslící nástroje. Bylo dosaženo sestavení průvodce ve formátu html, který slučuje všechny části programu. This thesis deal with suggestion of program...

  7. Development and evaluation of N-naphthyl-N,O-succinyl chitosan micelles containing clotrimazole for oral candidiasis treatment.

    Science.gov (United States)

    Tonglairoum, Prasopchai; Woraphatphadung, Thisirak; Ngawhirunpat, Tanasait; Rojanarata, Theerasak; Akkaramongkolporn, Prasert; Sajomsang, Warayuth; Opanasopit, Praneet

    2017-03-01

    Clotrimazole (CZ)-loaded N-naphthyl-N,O-succinyl chitosan (NSCS) micelles have been developed as an alternative for oral candidiasis treatment. NSCS was synthesized by reductive N-amination and N,O-succinylation. CZ was incorporated into the micelles using various methods, including the dropping method, the dialysis method, and the O/W emulsion method. The size and morphology of the CZ-loaded micelles were characterized using dynamic light scattering measurements (DLS) and a transmission electron microscope (TEM), respectively. The drug entrapment efficiency, loading capacity, release characteristics, and antifungal activity against Candida albicans were also evaluated. The CZ-loaded micelles prepared using different methods differed in the size of micelles. The micelles ranged in size from 120 nm to 173 nm. The micelles prepared via the O/W emulsion method offered the highest percentage entrapment efficiency and loading capacity. The CZ released from the CZ-loaded micelles at much faster rate compared to CZ powder. The CZ-loaded NSCS micelles can significantly hinder the growth of Candida cells after contact. These CZ-loaded NSCS micelles offer great antifungal activity and might be further developed to be a promising candidate for oral candidiasis treatment.

  8. Dicty_cDB: SHB868 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available |M26017.1 D.discoideum elongation factor 2 mRNA, complete cds. 482 e-154 2 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilos...is Random Genomic Library Candida parapsilosis genomic clone cp6...2f05, genomic survey sequence. 64 1e-18 4 CZ291650 |CZ291650.1 cp76h06.f Candida parapsilosis Random Genomic Library Candida parapsil...1 cp27c04.f Candida parapsilosis Random Genomic Library Candida parapsilosis geno...s. 64 2e-17 3 AF107291 |AF107291.1 Candida parapsilosis elongation factor 2 (EFT2

  9. Dicty_cDB: SHD156 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 78 4e-45 6 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilosis Random Genomic Library Candida parapsilosis ...64.1 C.albicans EFT2 gene. 78 2e-44 6 CZ282959 |CZ282959.1 cp27c04.f Candida parapsilosis Random Genomic Library Candida parapsilos...1 |AF107291.1 Candida parapsilosis elongation factor 2 (EFT2) gene, partial cds. 72 1e-41 7 AY497652 |AY497652.1 Candida parapsilos

  10. Dicty_cDB: CHP870 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available cds. 78 1e-44 5 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilosis Random Genomic Library Candida parapsilos...44 6 CZ282959 |CZ282959.1 cp27c04.f Candida parapsilosis Random Genomic Library Candida parapsilos...tropicalis elongation factor 2 (EFT2) gene, partial cds. 70 1e-42 6 AF107291 |AF107291.1 Candida parapsilosi...s elongation factor 2 (EFT2) gene, partial cds. 72 1e-41 7 AY497652 |AY497652.1 Candida parapsilos

  11. Alternative activation and increase of Trypanosoma cruzi survival in murine macrophages stimulated by cruzipain, a parasite antigen.

    Science.gov (United States)

    Stempin, Cinthia; Giordanengo, Laura; Gea, Susana; Cerbán, Fabio

    2002-10-01

    We studied the macrophage (Mo) activation pathways through Mo interaction with immunogenic Trypanosoma cruzi antigens as cruzipain (Cz) and R13. J774 cells, peritoneal and spleen Mo from normal mice, were used. Although Mo classic activation was observed in the presence of lipopolysaccharide, evaluated through nitric oxide (NO) and interleukin (IL)-12 production, Cz and R13 did not activate Mo in this way. To study the alternative pathway, we examined the arginase activity in Mo cultured with Cz. An increase of arginase activity was detected in all Mo sources assayed. An increase of IL-10 and transforming growth factor-beta in culture supernatants from Mo stimulated with Cz was observed. The study of expression of B7.1 and B7.2 in spleen Mo revealed that Cz induces preferential expression of B7.2. In vitro studies revealed that Cz stimulated J774 cells and then, infected with trypomastigotes of T. cruzi, developed a higher number of intracellular parasites than unstimulated infected Mo. Thus, Cz favors the perpetuation of T. cruzi infection. In addition, a down-regulation of inducible NO synthase was observed in J774 cells stimulated with Cz. These results suggest that Cz interaction with Mo could modulate the immune response generated against T. cruzi through the induction of a preferential metabolic pathway in Mo.

  12. Dicty_cDB: SHE269 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available .f OR_ABa Oryza ridleyi genomic clone OR_ABa0074P22 5', genomic survey sequence. 42 2.9 1 CZ796627 |CZ796627....1 OC__Ba0165O17.f OC__Ba Oryza coarctata genomic clone OC__Ba0165O17 5', genomic survey sequence. 42 2.9 1 ...CZ764028 |CZ764028.1 OC__Ba0118L24.f OC__Ba Oryza coarctata genomic clone OC__Ba0118L24 5', genomic survey

  13. Photodegradation of the azole fungicide climbazole by ultraviolet irradiation under different conditions: Kinetics, mechanism and toxicity evaluation.

    Science.gov (United States)

    Liu, Wang-Rong; Ying, Guang-Guo; Zhao, Jian-Liang; Liu, You-Sheng; Hu, Li-Xin; Yao, Li; Liang, Yan-Qiu; Tian, Fei

    2016-11-15

    Climbazole (CZ) has been known to persist in various environmental media, and may cause potential risks to aquatic organisms. This study investigated the photodegradation of CZ by ultraviolet (UV, 254nm) under different conditions. The results revealed that CZ could be effectively degraded in aqueous solutions under UV-254 irradiation with a half-life of 9.78min (pH=7.5), and the photodegradation followed pseudo-first-order kinetics. pH had almost no effect on its rate constants and quantum yields; but the water quality of natural waters could affect the photolysis of CZ, and the coexisting constituents such as Fe(3+), NO3(-), and HA obviously inhibited its photolysis. The addition of different radical scavengers also inhibited the photodegradation of CZ due to the reduction of reactive oxygen species (ROS). CZ underwent direct and self-sensitized photolysis involving ROS. Based on the identified photodegradation by-products, the proposed pathways included hydroxylative dechlorination, dechlorination and de-pinacolone. Moreover, toxicity evaluation using duckweed found significant toxicity reduction in the photodegradation system of CZ after the irradiation of UV-254, and the remaining by-products did not pose extra toxicity compared with CZ itself. These findings from present study suggest that CZ in effluent could be further reduced by applying UV photolysis treatment. Copyright © 2016 Elsevier B.V. All rights reserved.

  14. Atmospheric deposition levels of chosen elements in the Czech Republic determined in the framework of the International Bryomonitoring Program 1995

    Energy Technology Data Exchange (ETDEWEB)

    Sucharova, J.; Suchara, I. [Research Institute of Ornamental Gardening, Laboratory of Trace Elements, CZ-252 43, Pruhonice (Czech Republic)

    1998-11-03

    In order to determine the atmospheric loads of 13 elements (Al, As, Cd, Co, Cr, Cu, Fe, Mo, Ni, Pb, S, V, Zn), samples of Pleurozium schreberi (81.1%), Hypnum cupressiforme (11.2%) and Pseudoscleropodium purum (7.7%) bryophytes (mosses) were taken and analysed from an approx. 20x20-km grid extending over the entire territory (78-864 km{sup 2}) of the Czech Republic (abbreviated 'the CZ' in this study). The level of the elements found in the bryophytes reflects the relative atmospheric deposition loads of the elements at the investigated sites. Five hot spots indicating relatively high deposition levels were identified in the CZ. The marginal hot spots are the following: the CZ part of the so-called Black Triangle I territory in northwestern CZ; the CZ part of the Black Triangle II territory in northeastern CZ; and the CZ part of the Sudeten mountains (Jizerske Mts and Giant Mts) and their foothills in northern CZ. Inland hot spots were found in the southwestern industrial part of central Bohemia and in the southern Moravian industrial district. The average element contents in CZ bryophytes were comparable with the respective average values obtained in Germany and Poland. However, the CZ average bryophyte values were higher and lower in comparison to the average Austrian and Slovak values, respectively. The CZ average relative atmospheric deposition loads of the elements were found to be 2-3 times higher than the respective loads in the cleanest parts of Europe (e.g. clean parts of Nordic countries). A comparison of the analytical results obtained repeatedly at 20 identical localities in the CZ showed a significant decrease in the relative deposition loads of all of the investigated elements in 1995 as compared to 1991. This decrease has been caused by the dramatic restriction of the industrial production, mainly that of the metallurgical and chemical industries, in the CZ. Desulphurisation programs and the effective trapping of flying dust particles in CZ

  15. Photocatalytic Oxygenation of Substrates by Dioxygen with Protonated Manganese(III) Corrolazine.

    Science.gov (United States)

    Jung, Jieun; Neu, Heather M; Leeladee, Pannee; Siegler, Maxime A; Ohkubo, Kei; Goldberg, David P; Fukuzumi, Shunichi

    2016-04-04

    UV-vis spectral titrations of a manganese(III) corrolazine complex [Mn(III)(TBP8Cz)] with HOTf in benzonitrile (PhCN) indicate mono- and diprotonation of Mn(III)(TBP8Cz) to give Mn(III)(OTf)(TBP8Cz(H)) and [Mn(III)(OTf)(H2O)(TBP8Cz(H)2)][OTf] with protonation constants of 9.0 × 10(6) and 4.7 × 10(3) M(-1), respectively. The protonated sites of Mn(III)(OTf)(TBP8Cz(H)) and [Mn(III)(OTf)(H2O)(TBP8Cz(H)2)][OTf] were identified by X-ray crystal structures of the mono- and diprotonated complexes. In the presence of HOTf, the monoprotonated manganese(III) corrolazine complex [Mn(III)(OTf)(TBP8Cz(H))] acts as an efficient photocatalytic catalyst for the oxidation of hexamethylbenzene and thioanisole by O2 to the corresponding alcohol and sulfoxide with 563 and 902 TON, respectively. Femtosecond laser flash photolysis measurements of Mn(III)(OTf)(TBP8Cz(H)) and [Mn(III)(OTf)(H2O)(TBP8Cz(H)2)][OTf] in the presence of O2 revealed the formation of a tripquintet excited state, which was rapidly converted to a tripseptet excited state. The tripseptet excited state of Mn(III)(OTf)(TBP8Cz(H)) reacted with O2 with a diffusion-limited rate constant to produce the putative Mn(IV)(O2(•-))(OTf)(TBP8Cz(H)), whereas the tripseptet excited state of [Mn(III)(OTf)(H2O)(TBP8Cz(H)2)][OTf] exhibited no reactivity toward O2. In the presence of HOTf, Mn(V)(O)(TBP8Cz) can oxidize not only HMB but also mesitylene to the corresponding alcohols, accompanied by regeneration of Mn(III)(OTf)(TBP8Cz(H)). This thermal reaction was examined for a kinetic isotope effect, and essentially no KIE (1.1) was observed for the oxidation of mesitylene-d12, suggesting a proton-coupled electron transfer (PCET) mechanism is operative in this case. Thus, the monoprotonated manganese(III) corrolazine complex, Mn(III)(OTf)(TBP8Cz(H)), acts as an efficient photocatalyst for the oxidation of HMB by O2 to the alcohol.

  16. Earth's Critical Zone and hydropedology: concepts, characteristics, and advances

    Directory of Open Access Journals (Sweden)

    H. Lin

    2010-01-01

    Full Text Available The Critical Zone (CZ is a holistic framework for integrated studies of water with soil, rock, air, and biotic resources in the near-surface terrestrial environment. This most heterogeneous and complex region of the Earth ranges from the vegetation top to the aquifer bottom, with a highly variable thickness globally and a yet-to-be clearly defined lower boundary of active water cycle. Interfaces among different compartments in the CZ are critical, which provide fertile ground for interdisciplinary research. The reconciliation of coupled geological and biological cycles (vastly different in space and time scales is essential to understanding the complexity and evolution of the CZ. Irreversible evolution, coupled cycling, interactive layers, and hierarchical heterogeneity are the characteristics of the CZ, suggesting that forcing, coupling, interfacing, and scaling are grand challenges for advancing CZ science. Hydropedology – the science of the behaviour and distribution of soil-water interactions in contact with mineral and biological materials in the CZ – is an important contributor to CZ study. The pedosphere is the foundation of the CZ, which represents a geomembrance across which water and solutes, as well as energy, gases, solids, and organisms are actively exchanged with the atmosphere, biosphere, hydrosphere, and lithosphere, thereby creating a life-sustaining environment. Hydropedology emphasizes in situ soils in the landscape setting, where distinct pedogenic features and soil-landscape relationships are essential to understanding interactive pedologic and hydrologic processes. Both CZ science and hydropedology embrace an evolutionary and holistic worldview, which offers stimulating opportunities through steps such as integrated systems approach, evolutionary mapping-monitoring-modeling framework, and fostering a global alliance. Our capability to predict the behaviour and evolution of the CZ in response to changing environment can

  17. Dicty_cDB: SHB573 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 245 |BD460245.1 Diagnosis of Diseases Associated with Cell Cycle. 40 0.16 4 BD452167 |BD452167.1 Diagnosis o...f Diseases Associated with Cell Cycle. 40 0.16 4 CZ945208 |CZ945208.1 310727 Tomato EcoRI BAC Library Lycope

  18. Graphics Conference Calendar

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    1. The 13th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision'2005, University of West Bohemia, Campus-Bory Plzen (very close to Prague, the capital of the Czech Republic)Czech Republic, January 31 - February 4, 2005. http://wscg.zcu.cz, skala@kiv.zcu.cz

  19. Specificity in liquid metal induced embrittlement

    CSIR Research Space (South Africa)

    Fernandes, PJL

    1996-12-01

    Full Text Available compounds between the solid and liquid metals. To study the embrittlement of two brass alloys by molten gallium (Tm = 29.8 °C), Tensile tests on smooth, unnotched specimens were used. The alloys used were CZ106, a 70/30 alpha-brass, and CZ109, a 60/40 alpha...

  20. Finanční a srovnávací analýza společnosti DPD s.r.o.

    OpenAIRE

    Vinohradská, Veronika

    2014-01-01

    Bachelor thesis "Financial and comparative analysis of the company DPD CZ, s.r.o." analyzes and evaluates financial situation and financial health of the company in years 2008 - 2012, offers comparison with competing businesess and presents financial plan for the company DPD CZ, s.r.o. in 2013.

  1. Effect of heavy-metal-resistant bacteria on enhanced metal uptake and translocation of the Cu-tolerant plant, Elsholtzia splendens.

    Science.gov (United States)

    Xu, Chen; Chen, Xincai; Duan, Dechao; Peng, Cheng; Le, Thu; Shi, Jiyan

    2015-04-01

    A hydroponics trial was employed to study the effects of Pseudomonas putida CZ1 (CZ1), a heavy-metal-resistant bacterial strain isolated from the rhizosphere of Elsholtzia splendens (E. splendens), on the uptake and translocation of copper (Cu) in E. splendens. Significant promotion of plant growth coupled with the obvious plant-growth-promoting (PGP) characters of the bacteria suggested that CZ1 would be a plant-growth-promoting rhizobacterium (PGPR) to E. splendens under Cu stress condition. The results of inductively coupled plasma optical emission spectrometry (ICP-OES) showed that CZ1 increased the concentration of Cu in the shoots (up to 211.6% compared to non-inoculation treatment) and translocation factor (TF) (from 0.56 to 1.83%) of those exposed to Cu. The distribution of Cu in root cross section measured by synchrotron-based X-ray fluorescence microscopy (SRXRF) indicated that CZ1 promoted the transport of Cu from cortex to xylem in roots, which contributed to the accumulation of Cu in shoots. Furthermore, CZ1 improved the uptake of nutrient elements by plants to oppose to the toxicity of Cu. In summary, P. putida CZ1 acted as a PGPR in resistance to Cu and promoted the accumulation and translocation of Cu from root to shoot by element redistribution in plant root; hence, CZ1 is a promising assistance to phytoremediation.

  2. Dicty_cDB: Contig-U03323-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available NG DRAFT SEQU... 50 0.087 1 ( AC230096 ) Bos taurus clone CH240-521N4, WORKING DRAFT SEQUE... 50 0.087 1 ( CZ256672 ) LQCX088TV Pain...ted Turtle BAC Library Chrysemys pi... 50 0.087 1 ( CZ256458 ) LQCX051TV Pain

  3. Transliteration und Analyse zweier Textpassagen aus dem Chamail von Aleksander Aleksandrowicz: „Opisanie dni miesięcznych“ und „Jakiego dnia znajduje się dusza w człowieku“ (= Транслитерация и анализ двух текстов из хамаила Александра Александрόвича: “Opisanie dni miesięcznych” и “Jakiego dnia znajduje się dusza w człowieku”

    Directory of Open Access Journals (Sweden)

    Insa J. Klemme

    2013-09-01

    Full Text Available This paper investigates the language of the so-called Aleksander Aleksandrowicz Chamail, a 19th-century manuscript by Polish-Lithuanian Tatars kept by the Departmental Library of Arabic and Islamic Studies at Warsaw University (without signatory. The manuscript’s main language has been identified as Polish written in Arabic script, although it contains traces of dialect, East Slavic interference and archaisms, as shown by the transliteration of two textual passages into Latin characters as well as by an accurate graphemic and phonemic analysis. ____________________ В статье исследуется так называемый хамаил Александра Александрόвича, рукопись XIX века, возникшая в среде польско-литовских татар и хранящаяся ныне (без шифра в библиотеке факультета арабистики и исламоведения Варшавского университета. Установлено, что рукопись написана арабицей на одном из польских диалектов и отражает восточнославянское языковое влияние, а также содержит некоторые архаизмы, в чём можно убедиться на основе публикации двух фрагментов рукописи, выполненной латиницей, и орфографического и фонематического анализа.

  4. Sedimentary Rocks Associated with the Coal Seams of the Saddle Beds from the Chwałowice Trough - West Part of Upper Silesian Coal Basin / Skały Osadowe Towarzyszące Pokładom Węgla Warstw Siodłowych Niecki Chwałowickiej - Zachodnia Część Górnośląskiego Zagłębia Węglowego

    Science.gov (United States)

    Stanienda, Katarzyna

    2015-03-01

    The results of investigation of the associated rocks with the Saddle Beds Coals Seams from Chwałowice Trough were presented in this article. The results of researches show that sandstones and mudstones dominate in the investigating profile. Claystones are situated mainly in ceilings and floors of coal seams. Grains of sandstones include mainly quartz, feldspars, micas and also quartzite's and gneiss's fragments. It is also possible to observe small grains of heavy minerals. Some of sandstones present bad compactness and are destroyed during transportation. This feature is connected with presence of little quantity of cement, especially in medium grained sandstones, which include more matrix than typical cement. The cement is built mainly of clay minerals, kaolinite and illite, carbonates and chalcedony but X-ray diffraction confirmed also the presence of halite in the cement of investigated sandstones. Mudstones and claystones are composed mainly of clay minerals. It's also possible to find quartz and micas there. Higher amounts of quartz and micas are possible to find rather in mudstones. The associated rocks with the Saddle Beds Coal Seams from Chwałowice Trough include also organic matter. W artykule przedstawiono wyniki badań skał towarzyszących pokładom węgla warstw siodłowych Niecki Chwałowickiej. Wyniki badań wskazują, że w badanym profilu dominują piaskowce oraz mułowce. Iłowce natomiast występują głównie w stropach i spągach pokładów węgla. Okruchy piaskowców to głównie ziarna kwarcu, skaleni, mik oraz fragmenty kwarcytów i gnejsów. Można tu również zaobserwować drobne okruchy minerałów ciężkich. Niektóre piaskowce charakteryzują się obniżoną zwięzłością i podczas transportu ulegają rozpadowi. Cecha ta związana jest z niewielką ilością spoiwa, szczególnie w piaskowcach średnioziarnistych, w których matrix przeważa nad typowym cementem. Spoiwo zbudowane jest głównie z minerałów ilastych, takich jak kaolinit i illit, węglanów i chalcedonu, chociaż wyniki dyfraktometrii rentgenowskiej potwierdziły występowanie w spoiwie badanych piaskowców również halitu. Na podstawie składu mineralnego piaskowców, dokonano ich klasyfikacji, stosując podziały skał okruchowych Krynina (1948) i Pettijohn'a-Potter'a-Siever'a (1973). Według klasyfikacji Krynina badane piaskowce reprezentują szarogłazy (szarowaki). W klasyfikacji Pettijohn'a, próbki 6, 8 i 13 reprezentują arenity lityczne, natomiast próbki 3 i 10- waki. Mułowce i iłowce zbudowane SA głównie z minerałów ilastych. Można w nich również spotkać ziarna kwarcu oraz miki. Wyższy udział kwarcu i mik jest jednak charakterystyczny dla mułowców. Skały towarzyszące pokładom węgla warstw siodłowych Niecki Chwałowickiej zawierają również domieszki substancji organicznej.

  5. Effect of hydrothermal treatment on catalytic activity of amorphous mesoporous Cr{sub 2}O{sub 3}–ZrO{sub 2} nanomaterials for ethanol oxidation

    Energy Technology Data Exchange (ETDEWEB)

    Mahmoud, Hala R., E-mail: halamahmoud2@yahoo.com

    2015-07-15

    Mesoporous 0.25Cr{sub 2}O{sub 3}–0.75ZrO{sub 2} binary oxide catalysts (CZ-H) with high specific surface areas were successfully synthesized by hydrothermal treatment. The effect of synthesis conditions, such as hydrothermal temperature and time of CZ-H nanomaterials were investigated by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), energy dispersive spectroscopic (EDS), UV–vis diffuse reflectance spectroscopy (DRS) and N{sub 2} adsorption–desorption measurements (BET). The XRD analysis indicated the formation of amorphous materials of binary oxides. The results showed that hydrothermal temperature and time of CZ-H nanomaterials had great influence on the average particle diameter and surface area. Under the optimum synthesis conditions, the best CZ-H nanomaterial synthesized at 210 °C for 3 h (i.e., CZ-H213), presented spherical structure with smallest average particle diameter found to be 1.5 nm and possessed highest surface area of 526.6 m{sup 2}/g. Optical studies by UV–vis spectroscopy for the different CZ-H nanomaterials exhibit slightly blue shift from 3.20 to 3.33 eV due to quantum confined exciton absorption. Moreover, hydrothermal synthesis leads to catalysts with higher surface area and with better acid–base properties than conventional co-precipitation method. Compared to the other nanomaterials, the CZ-H213 catalyst appears to be the best candidate for further application in acid–base catalysis and reusability. - Graphical abstract: Display Omitted - Highlights: • Mesoporous 25%Cr{sub 2}O{sub 3}–75%ZrO{sub 2} catalysts (CZ-H) were prepared by hydrothermal method. • The hydrothermal temperature and time modified the properties of CZ-H nanomaterials. • The best CZ-H nanomaterial synthesized at 210 °C for 3 h (i.e., CZ-H213). • A CZ-H213 nanomaterial had the highest S{sub BET} and smallest average particle diameter. • A mesoporous CZ-H213 used as a reusable active catalyst in the ethanol

  6. Michelsonův interferometr

    OpenAIRE

    Rýc, Jan

    2011-01-01

    Diplomová práce se zabývá bezkontaktními optickými metodami měření vzdálenosti a rychlosti (vibrací). Je zde uveden základní přehled a teoretická rešerže těchto metod. Podrobně je zde rozebrána zejména problematika interferometrických metod pro měření vibrací. Obsahuje rozdělení interferometrů, popis principu jejich funkce a rovněž obsahuje kapitoly zabývající se prvky, které se v interferometrech používají, jako lasery, fotodetektory a prvky v optické trase paprsku (polarizátory, retardéry a...

  7. Critical Zone services as environmental assessment criteria in intensively managed landscapes

    Science.gov (United States)

    Richardson, Meredith; Kumar, Praveen

    2017-06-01

    The Critical Zone (CZ) includes the biophysical processes occurring from the top of the vegetation canopy to the weathering zone below the groundwater table. CZ services provide a measure for the goods and benefits derived from CZ processes. In intensively managed landscapes, cropland is altered through anthropogenic energy inputs to derive more productivity, as agricultural products, than would be possible under natural conditions. However, the actual costs of alterations to CZ functions within landscape profiles are unknown. Through comparisons of corn feed and corn-based ethanol, we show that valuation of these CZ services in monetary terms provides a more concrete tool for characterizing seemingly abstract environmental damages from agricultural production systems. Multiple models are combined to simulate the movement of nutrients throughout the soil system, enabling the measurement of agricultural anthropogenic impacts to the CZ's regulating services. Results indicate water quality and atmospheric stabilizing services, measured by soil carbon storage, carbon respiration, and nitrate leaching, among others, can cost more than double that of emissions estimated in previous studies. Energy efficiency in addition to environmental impact is assessed to demonstrate how the inclusion of CZ services is necessary in accounting for the entire life cycle of agricultural production systems. These results conclude that feed production systems are more energy efficient and less environmentally costly than corn-based ethanol.

  8. Effects of Cropping System and Cowpea Variety on Symbiotic Potential and Yields of Cowpea (Vigna unguiculata L. Walp and Pearl Millet (Pennisetum glaucum L. in the Sudano-Sahelian Zone of Mali

    Directory of Open Access Journals (Sweden)

    Zoumana Kouyaté

    2012-01-01

    Full Text Available Many cowpea varieties (Vigna unguiculata L. Walp have been proposed by research in Mali. None of these varieties were investigated for their symbiotic potential in terms of root nodulation and mycorrhizal infection. An experiment was conducted at Cinzana Research Station, from 2007 to 2009 with an objective to identify a cowpea variety with high symbiotic potential which may improve millet/cowpea cropping global production. Randomized complete block (RCBD design with a factorial combination of 3 cowpea varieties (IT89KD-374, CZ1-94-23-1, and CZ11-94-5C and 2 cropping systems (millet/cowpea intercropping and cowpea-millet rotation was used. On farm test was conducted to evaluate CZ11-94-5C and IT89KD-374 nodulation performance. Cowpea variety CZ11-94-5-C had the highest nodule number and nodule weight. Millet/cowpea alternate rows intercropping (1/1, only, had a significant influence on cowpea root infection rates by mycorrhizae, on the 45th day after emergence. IT89KD-374 gave the best cowpea grain yield (1540 kg ha−1 in sole crop. The highest millet grain yield (1650 kg ha−1 was obtained under CZ11-94-5C-millet rotation. Farmers' fields assessments results confirmed CZ11-94-5C performance on research station. The CZ11-94-5C cowpea variety needs to be more characterized.

  9. Research Regarding Genetic Polymorphism on the Main Lactoproteins at Sură de Stepă Breeds

    Directory of Open Access Journals (Sweden)

    Şteofil Creangă

    2010-10-01

    Full Text Available Research was carried out on a number of 30 Sură de Stepă cows raised in semi-intensive stalling at S.C.D.C.B. - Dancu, Iasi. On this nucleus we studied the main lacto-proteins systems and the correlations with milk production indicators. At Sură de Stepă breed were identified alleles for the six loci codifying the six types of major milk proteins (α S1-cz; β-cz; K-cz; β-lg; α-la; α S2-cz. In the system αS1-cz allele s1-Cn B has the greatest frequency (0.700, in the system β-cz allele -Cn A2 (0.550, in the system K-cz allele k-CnA2 (0.583 and heterozygous genotype AB (0.416 respectively BB (0.375, in the system β-lg allele β-lgA1 has the greatest frequency (0.542 and heterozygous genotype AB (0.500, in the system α-la could be found a mono-morphism for allele -la B and similar in the system αS2-cz for allele s2-Cn A. Kappa–casein (K-cz is positive and strongly correlated with fat % respectively protein % (rp = 0.58-0.77, rg = 0.67-0.83, rm = 0.64-0.87.

  10. Effects of chlorate on the sulfation process of Trypanosoma cruzi glycoconjugates. Implication of parasite sulfates in cellular invasion.

    Science.gov (United States)

    Ferrero, Maximiliano R; Soprano, Luciana L; Acosta, Diana M; García, Gabriela A; Esteva, Mónica I; Couto, Alicia S; Duschak, Vilma G

    2014-09-01

    Sulfation, a post-translational modification which plays a key role in various biological processes, is inhibited by competition with chlorate. In Trypanosoma cruzi, the agent of Chagas' disease, sulfated structures have been described as part of glycolipids and we have reported sulfated high-mannose type oligosaccharides in the C-T domain of the cruzipain (Cz) glycoprotein. However, sulfation pathways have not been described yet in this parasite. Herein, we studied the effect of chlorate treatment on T. cruzi with the aim to gain some knowledge about sulfation metabolism and the role of sulfated molecules in this parasite. In chlorate-treated epimastigotes, immunoblotting with anti-sulfates enriched Cz IgGs (AS-enriched IgGs) showed Cz undersulfation. Accordingly, a Cz mobility shift toward higher isoelectric points was observed in 2D-PAGE probed with anti-Cz antibodies. Ultrastructural membrane abnormalities and a significant decrease of dark lipid reservosomes were shown by electron microscopy and a significant decrease in sulfatide levels was confirmed by TLC/UV-MALDI-TOF-MS analysis. Altogether, these results suggest T. cruzi sulfation occurs via PAPS. Sulfated epitopes in trypomastigote and amastigote forms were evidenced using AS-enriched IgGs by immunoblotting. Their presence on trypomastigotes surface was demonstrated by flow cytometry and IF with Cz/dCz specific antibodies. Interestingly, the percentage of infected cardiac HL-1 cells decreased 40% when using chlorate-treated trypomastigotes, suggesting sulfates are involved in the invasion process. The same effect was observed when cells were pre-incubated with dCz, dC-T or an anti-high mannose receptor (HMR) antibody, suggesting Cz sulfates and HMR are also involved in the infection process by T. cruzi.

  11. Cherenkov and Scintillation Properties of Cubic Zirconium

    Science.gov (United States)

    Christl, M.J.; Adams, J.H.; Parnell, T.A.; Kuznetsov, E.N.

    2008-01-01

    Cubic zirconium (CZ) is a high index of refraction (n =2.17) material that we have investigated for Cherenkov counter applications. Laboratory and proton accelerator tests of an 18cc sample of CZ show that the expected fast Cherenkov response is accompanied by a longer scintillation component that can be separated by pulse shaping. This presents the possibility of novel particle spectrometers which exploits both properties of CZ. Other high index materials being examined for Cherenkov applications will be discussed. Results from laboratory tests and an accelerator exposure will be presented and a potential application in solar energetic particle instruments will be discussed

  12. Maximum length of large diameter Czochralski silicon single crystals at fracture stress limit of seed

    Science.gov (United States)

    Kim, K. M.; Smetana, P.

    1990-03-01

    Growth of large diameter Czochralski (CZ) silicon crystals require complete elimination of dislocations by means of Dash technique, where the seed diameter is reduced to a small size typically 3 mm in conjunction with increase in the pull rate. The maximum length of the large CZ silicon is estimated at the fracture stress limit of the seed neck diameter ( d). The maximum lengths for 200 and 300 mm CZ crystals amount to 197 and 87 cm, respectively, with d = 0.3 cm; the estimated maximum weight is 144 kg.

  13. Dicty_cDB: SHE540 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available ) gene, partial cds. 64 5e-41 6 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilosis Random Genomic Library Candida parapsilos...282959 |CZ282959.1 cp27c04.f Candida parapsilosis Random Genomic Library Candida parapsilosis genomic clone ...cp27c04, genomic survey sequence. 72 9e-40 6 AY497632 |AY497632.1 Candida parapsilosis strain ATCC 96140 tra...nslation elongation factor gene, partial cds. 84 9e-38 5 AF107291 |AF107291.1 Candida parapsilos

  14. Dicty_cDB: SHB164 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available niensis strain CBS 7987 translation elongation factor gene, partial cds. 78 1e-44 5 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilos...is Random Genomic Library Candida parapsilosis genomic clone cp62f05, genomic surve... |CZ282959.1 cp27c04.f Candida parapsilosis Random Genomic Library Candida parapsilosis genomic clone cp27c0...ne, partial cds. 70 1e-42 6 AF107291 |AF107291.1 Candida parapsilosis elongation ...factor 2 (EFT2) gene, partial cds. 72 2e-41 7 AY497652 |AY497652.1 Candida parapsilosis strain CBS 604 trans

  15. Kinetics of Nitrogen Indiffusion in Czochralski Silicon Annealed in Nitrogen Ambient

    Institute of Scientific and Technical Information of China (English)

    LI Ming; MA Xiang-Yang; YANG De-Ren

    2008-01-01

    By means of low-temperature(10K)Fourier transform infrared absorption spectroscopy,the kinetics of nitrogen indiffusion in Czochralski(CZ)silicon annealed 8t 1150-1250°C in nitrogen ambient is investigated.Moreover,the nitrogen diffusivities in CZ silicon at elevated temperatures deduced herein are in good agreement with those previously obtained in float-zone silicon,thus leading to the conclusion that the nitrogen indiffusion in CZ silicon at elevated temperatures is via nitrogen pairs.

  16. Interaction of Non-Metallic Inclusion Particles with Advancing Solidification Front

    Directory of Open Access Journals (Sweden)

    Kalisz D.

    2014-06-01

    Full Text Available Praca zajmuje się zjawiskiem oddziały wania przemieszczającego frontu krystalizacji na cząstki wydzieleń niemetalicznych. Analizowano zachowanie pojedynczej cząstki wydzielenia w pobliżu poziomego i pionowego frontu. Scharakteryzowano siły działające na cząstkę w pobliżu frontu i sformułowano warunek równowagi, z którego wynika szybkość krytyczna frontu. Wyniki obliczeń zilustrowano w postaci wykresów.

  17. A New Star-shaped Carbazole Derivative with Polyhedral Oligomeric Silsesquioxane Core: Crystal Structure and Unique Photoluminescence Property.

    Science.gov (United States)

    Xu, Zixuan; Yu, Tianzhi; Zhao, Yuling; Zhang, Hui; Zhao, Guoyun; Li, Jianfeng; Chai, Lanqin

    2016-01-01

    A new inorganic–organic hybrid material based on polyhedral oligomeric silsesquioxane (POSS) capped with carbazolyl substituents, octakis[3-(carbazol-9-yl)propyldimethylsiloxy]-silsesquioxane (POSS-8Cz), was successfully synthesized and characterized. The X-ray crystal structure of POSS-8Cz were described. The photophysical properties of POSS-8Cz were investigated by using UV–vis,photoluminescence spectroscopic analysis. The hybrid material exhibits blue emission in the solution and the solid film.The morphology and thermal stablity properties were measured by X-ray diffraction (XRD) and TG-DTA analysis.

  18. The Influence of Peripheral Substituent Modification on P(V), Mn(III), and Mn(V)(O) Corrolazines: X-ray Crystallography, Electrochemical and Spectroscopic Properties, and HAT and OAT Reactivities.

    Science.gov (United States)

    Joslin, Evan E; Zaragoza, Jan Paulo T; Baglia, Regina A; Siegler, Maxime A; Goldberg, David P

    2016-09-06

    The influence of remote peripheral substitution on the physicochemical properties and reactivity of phosphorus and manganese corrolazine (Cz) complexes was examined. The substitution of p-MeO for p-t-Bu groups on the eight phenyl substituents of the β-carbon atoms of the Cz ring led to changes in UV-vis transitions and redox potentials for each of the complexes. The oxygen atom transfer (OAT) and hydrogen atom transfer (HAT) reactivity of the Mn(V)(O) complexes was also influenced by p-MeO substitution. The OAT reactivity of Mn(V)(O)(MeOP8Cz) (MeOP8Cz = octakis(p-methoxyphenyl)corrolazinato(3-)) with triarylphosphine (PAr3) substrates led to second-order rate constants from 10.2(5) to 3.1(2) × 10(4) M(-1) s(-1). These rates of OAT are slower than those seen for Mn(V)(O)(TBP8Cz) (TBP8Cz = octakis(p-tert-butylphenyl)corrolazinato(3-)). A Hammett study involving para-substituted PAr3 substrates reveals a Hammett ρ-value for Mn(V)(O)(MeOP8Cz) that is more negative than that observed for Mn(V)(O)(TBP8Cz), consistent with a less electrophilic Mn center. The HAT reactivity of Mn(V)(O)(MeOP8Cz) with C-H substrates was examined and revealed second-order rate constants from 6.8(5) × 10(-5) to 1.70(2) × 10(-1) M(-1) s(-1). The rate constants varied with the C-H bond strength of the substrate. Slightly faster HAT rates with C-H substrates were observed with Mn(V)(O)(MeOP8Cz) compared to Mn(V)(O)(TBP8Cz), indicating that the basicity of the putative [Mn(IV)(O)](-) intermediate likely compensates for the more negative redox potential in the driving force for HAT. In addition, the complete, large-scale synthesis of the para-phenyl-substituted porphyrazines RP8PzH2 (R = p-tert-butylphenyl (TB), p-methoxyphenyl (MeO), and p-isopropylphenyl) and corrolazines RP8CzH3 (TBP8CzH3 and MeOP8CzH3) is presented. The crystal structures of the monoprotonated, metal-free corrolazine [(TBP8CzH3)(H)](+)[BArF](-), P(V)(OMe)2(MeOP8Cz), and Mn(III)(MeOP8Cz)(MeOH) are presented. This work

  19. Dicty_cDB: CHP509 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available or 2 (EFT2) gene, partial cds. 78 4e-45 6 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilosis Random Genomic Library Candida parapsil...l cds. 78 9e-45 5 Y09664 |Y09664.1 C.albicans EFT2 gene. 78 2e-44 6 CZ282959 |CZ282959.1 cp27c04.f Candida parapsilos...is Random Genomic Library Candida parapsilosis genomic clone cp27c04, ge...artial cds. 70 8e-43 6 AF107291 |AF107291.1 Candida parapsilosis elongation factor 2 (EFT2) gene, partial cd...s. 72 1e-41 7 AY497652 |AY497652.1 Candida parapsilosis strain CBS 604 translatio

  20. Magnetic Czochralski silicon as detector material

    CERN Document Server

    Härkönen, J; Luukka, P; Nordlund, H K; Tuominen, E

    2007-01-01

    The Czochralski silicon (Cz-Si) has intrinsically high oxygen concentration. Therefore Cz-Si is considered as a promising material for the tracking systems in future very high luminosity colliders. In this contribution a brief overview of the Czochralski crystal growth is given. The fabrication process issues of Cz-Si are discussed and the formation of thermal donors is especially emphasized. N+/p−/p+ and p+/n−/n+ detectors have been processed on magnetic Czochralski (MCz-Si) wafers. We show measurement data of AC-coupled strip detectors and single pad detectors as well as experimental results of intentional TD doping. Data of spatial homogeneity of electrical properties, full depletion voltage and leakage current, is shown and n and p-type devices are compared. Our results show that it is possible to manufacture high quality n+/p−/p+ and p+/n−/n+ particle detectors from high-resistivity Cz-Si.

  1. Dicty_cDB: SHI412 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 1.1 ZMMBBb0386M12.f ZMMBBb Zea mays subsp. mays genomic clone ZMMBBb0386M12 5', genomic survey sequence. 40 ... genomic clone ZMMBBb0601E20 3', genomic survey sequence. 38 0.005 2 CL127218 |CL127218.1 ISB1-92C10_Sp6.1 I...SB1 Silurana tropicalis genomic clone ISB1-92C10, genomic survey sequence. 36 0.005 3 CZ393130 |CZ393130.1 Z...MMBF0171F02f ZMMBF Zea mays genomic clone ZMMBF0171F02 5', genomic survey sequenc...e. 38 0.006 2 CZ185040 |CZ185040.1 OA_BBa0100O09.r OA_BBa Oryza alta genomic clone OA_BBa0100O09 3', genomic survey

  2. 78 FR 69367 - Membership of the Departmental Performance Review Board

    Science.gov (United States)

    2013-11-19

    ... members of the DPRB will expire December 31, 2015. DATES: Effective Date: The effective date of service of... Secretary Theodore C.Z. Johnston, Director, Office of White House Liaison Office of General Counsel...

  3. 40 CFR 205.158 - Labeling requirements.

    Science.gov (United States)

    2010-07-01

    ..., and four spaces for the advertised engine displacement respectively. (7) All motorcycle manufacturers... HOD Honda HON Husqvarna HUS JAWA/CZ JAW Kawasaki KAW KTM KTM Laverda LAV Moto Benilli BEN Moto Guzzi...

  4. AcEST: BP918006 [AcEST

    Lifescience Database Archive (English)

    Full Text Available ult : TrEMBL tr_hit_id A0EGN4 Definition tr|A0EGN4|A0EGN4_PARTE Chromosome undetermine...s) Value tr|A0EGN4|A0EGN4_PARTE Chromosome undetermined scaffold_95, whol... 33 5.4 tr|A7E781|A7E781_SCLS1 P...-like e... 33 9.2 tr|A0CZ91|A0CZ91_PARTE Chromosome undetermined scaffold_32, who...l... 33 9.2 >tr|A0EGN4|A0EGN4_PARTE Chromosome undetermined scaffold_95, whole genome shotgun sequence OS=Pa...LEPLFPASLIEQEMTT 59 >tr|A0CZ91|A0CZ91_PARTE Chromosome undetermined scaffold_32, whole genome shotgun sequen

  5. Impurity engineering for germanium-doped Czochralski silicon wafer used for ultra large scale integrated circuit

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Jiahe; Yang, Deren [State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou (China)

    2009-07-01

    Internal gettering (IG) technology has been challenged by both the reduction of thermal budget during device fabrication and the enlargement of wafer diameter. Improving the properties of Czochralski (Cz) silicon wafers by intentional impurity doping, the so-called 'impurity engineering (IE)', is defined. Germanium has been found to be one of the important impurities for improving the internal gettering effect in Cz silicon wafer. In this paper, the investigations on IE involved with the conventional furnace anneal based denudation processing for germanium-doped Cz silicon wafer are reviewed. Meanwhile, the potential mechanisms of germanium effects for the IE of Cz silicon wafer are also interpreted based on the experimental facts. (copyright 2009 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  6. Efficient fluorescent deep-blue and hybrid white emitting devices based on carbazole/benzimidazole compound

    KAUST Repository

    Yang, Xiaohui

    2011-07-28

    We report the synthesis, photophysics, and electrochemical characterization of carbazole/benzimidazole-based compound (Cz-2pbb) and efficient fluorescent deep-blue light emitting devices based on Cz-2pbb with the peak external quantum efficiency of 4.1% and Commission Internationale dÉnclairage coordinates of (0.16, 0.05). Efficient deep-blue emission as well as high triplet state energy of Cz-2pbb enables fabrication of hybrid white organic light emitting diodes with a single emissive layer. Hybrid white emitting devices based on Cz-2pbb show the peak external quantum efficiency exceeding 10% and power efficiency of 14.8 lm/W at a luminance of 500 cd/m2. © 2011 American Chemical Society.

  7. 75 FR 56503 - Membership of the Departmental Performance Review Board

    Science.gov (United States)

    2010-09-16

    ... Secretary: ] John C. Connor, Director, Office of White House Liaison Tene A. Dolphin, Director, Executive... Secretary for Market Access and Compliance Theodore C.Z. Johnston, Chief of Staff for ITA Minority Business...

  8. Dicty_cDB: CHO776 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available , partial cds. 78 4e-45 6 CZ289188 |CZ289188.1 cp62f05.f Candida parapsilosis Random Genomic Library Candida parapsilos...5 Y09664 |Y09664.1 C.albicans EFT2 gene. 78 2e-44 6 CZ282959 |CZ282959.1 cp27c04.f Candida parapsilosis Rand...om Genomic Library Candida parapsilosis genomic clone cp27c04, genomic survey seq...e-43 6 AF107291 |AF107291.1 Candida parapsilosis elongation factor 2 (EFT2) gene, partial cds. 72 1e-41 7 AY...497652 |AY497652.1 Candida parapsilosis strain CBS 604 translation elongation fac

  9. Critical Zone Science: a new scientific paradigm?

    Science.gov (United States)

    Gaillardet, J.; Longuevergne, L.; Nord, G.; André, F.

    2014-12-01

    The main merit of the Critical Zone (CZ) Science is to foster multidisciplinary approaches on one of the most important envelopes of our Planet, the zone on which humanity lives and on which humans develop their societies. Policy makers and stakeholders also require a more unified scientific vision on the behavior of the CZ. The CZ science is not new and many communities have been doing CZ science for many decades. CZ-type observatories have been developed in most of the countries for different aims but generally lack of an integrated approach. When hydrologic measurements are made, they are generally not associated to geochemical measurements and the situation is worst for biological parameters. Instrumental geophysics of the CZ has done impressive progresses over the last decades but the misfit between the scientific questions and instrumental development is still a challenging issue. We will take the example of the French initiatives to build up a wide community of CZ scientists ("critical zonists") at the national scale taking into account decades of instrumentation and observation. More than creating new CZOs the French national research agencies helped foster collaboration between existing infrastructures by funding networking activities and developing significant investment programs for new equipment. We will review the main challenges of creating CZ networks based on existing funded research infrastructures and highlight the main instrumental challenges that need to be addressed to explore and understand the CZ in a modern way. The French initiatives mirror the European initiatives and the need for developing the links between the geo-centered initiative CZ concept and the ecology-centered concepts of LTER (and more recently LTSER) at the European scale. This willingness of linking historically separated communities is a stimulating opportunity for the advance of integrated Earth and Life sciences. As quoted by Bruno Latour (2014) the new environmental

  10. Critical zone architecture and processes: a geophysical perspective

    Science.gov (United States)

    Holbrook, W. S.

    2016-12-01

    The "critical zone (CZ)," Earth's near-surface layer that reaches from treetop to bedrock, sustains terrestrial life by storing water and producing nutrients. Despite is central importance, however, the CZ remains poorly understood, due in part to the complexity of interacting biogeochemical and physical processes that take place there, and in part due to the difficulty of measuring CZ properties and processes at depth. Major outstanding questions include: What is the architecture of the CZ? How does that architecture vary across scales and across gradients in climate, lithology, topography, biology and regional states of stress? What processes control the architecture of the CZ? At what depth does weathering initiate, and what controls the rates at which it proceeds? Based on recent geophysical campaigns at seven Critical Zone Observatory (CZO) sites and several other locations, a geophysical perspective on CZ architecture and processes is emerging. CZ architecture can be usefully divided into four layers, each of which has distinct geophysical properties: soil, saprolite, weathered bedrock and protolith. The distribution of those layers across landscapes varies depending on protolith composition and internal structure, topography, climate (P/T) and the regional state of stress. Combined observations from deep CZ drilling, geophysics and geochemistry demonstrate that chemical weathering initiates deep in the CZ, in concert with mechanical weathering (fracturing), as chemical weathering appears concentrated along fractures in borehole walls. At the Calhoun CZO, the plagioclase weathering front occurs at nearly 40 m depth, at the base of a 25-m-thick layer of weathered bedrock. The principal boundary in porosity, however, occurs at the saprolite/weathered bedrock boundary: porosity decreases over an order of magnitude, from 50% to 5% over an 8-m-thick zone at the base of saprolite. Porosity in weathered bedrock is between 2-5%. Future progress will depend on (1

  11. Photophysical properties and computational investigation on substituent effects on the structural and electronic properties of 3,6-di(thiophene-2-yl)-carbazole-based derivatives

    Science.gov (United States)

    Sriyab, Suwannee; Gleeson, Matthew Paul; Hannongbua, Supa; Suramitr, Songwut

    2016-12-01

    A series of 3,6-carbazole-based derivatives, 3,6-CzTh-(1), 3,6-CzTh-(2), 3,6-CzTh-(3) and 3,6-CzTh-(4), were synthesized to investigate the influence of structural distortion on intramolecular charge transfer (ICT) complexation between the conjugation components and carbazole core unit of the 3,6-carbazole-based derivatives. The 3,6-carbazole-based derivatives were synthesized and analysed using UV-Visible, photoluminescence spectroscopy and DFT calculations. The electron-donating substituents on the carbazole core unit, which was linked by formyl and acetyl at the 3,6-positions of the carbazole core so as to directly involve the electron-donating edge substituents in backbone, exhibited conjugation breaks in the middle of the carbazole core units. The break lead to a planar structure with an extraordinary ability to stabilize on the excited state resulting in a strong fluorescence quantum yield (Vfluo ≈ 0.6-0.7). The results of the Time-dependent density functional theory (TD-DFT) calculations were in agreement with the experimental results, and indicated that the low fluorescence of 3,6-CzTh-(1) and 3,6-CzTh-(2) is derived not only from intersystem crossing but also from internal conversion due to the proximity effect; this inference was also supported by the measurements of the photoluminescence spectra at low temperatures. In addition, factors leading efficiently to non-radiative processes were shown to be absent in 3,6-CzTh-(3) and 3,6-CzTh-(4). This work deepens our understanding of 3,6-di(thiophen-2-yl)-carbazole-based derivatives and provides insight into the future design of novel materials for improved fluorescence efficiencies and optoelectronic devices.

  12. Menger curvature and rectifiability in metric spaces

    OpenAIRE

    2012-01-01

    We show that for any metric space $X$ the condition \\[ \\int_X\\int_X\\int_X c(z_1,z_2,z_3)^2\\, d\\Hm z_1\\, d\\Hm z_2\\, d\\Hm z_3 < \\infty, \\] where $c(z_1,z_2,z_3)$ is the Menger curvature of the triple $(z_1,z_2,z_3)$, guarantees that $X$ is rectifiable.

  13. Multilingual Europe

    DEFF Research Database (Denmark)

    Phillipson, Robert

    2013-01-01

    Review of: Multilingual Europe: Multilingual Europeans. (European Studies: An Interdisciplinary Series in European Culture, History and Politics, Vol. 29). Eds. Láslá Maràcz & Mireille Rosello. Rodopi, 2012. 323 pp.......Review of: Multilingual Europe: Multilingual Europeans. (European Studies: An Interdisciplinary Series in European Culture, History and Politics, Vol. 29). Eds. Láslá Maràcz & Mireille Rosello. Rodopi, 2012. 323 pp....

  14. Photochemical Oxidation of a Manganese(III) Complex with Oxygen and Toluene Derivatives to Form a Manganese(V)-Oxo Complex

    Science.gov (United States)

    Jung, Jieun; Ohkubo, Kei; Prokop-Prigge, Katharine A.; Neu, Heather M.; Goldberg, David P.; Fukuzumi, Shunichi

    2013-01-01

    Visible light photoirradiation of an oxygen-saturated benzonitrile solution of a manganese(III) corrolazine complex [(TBP8Cz)MnIII (1): [TBP8Cz = octakis(p-tert-butylphenyl)corrolazinato3−] in the presence of toluene derivatives resulted in formation of the manganese(V)-oxo complex [(TBP8Cz)MnV(O)]. The photochemical oxidation of (TBP8Cz)MnIII with O2 and hexamethylbenzene (HMB) led to the isosbestic conversion of 1 to (TBP8Cz)MnV(O), accompanied by the selective oxidation of HMB to pentamethylbenzyl alcohol (87%). The formation rate of (TBP8Cz)MnV(O) increased with methyl group substitution, from toluene, p-xylene, mesitylene, durene, pentamethylbenzene, up to hexamethylbenzene. Deuterium kinetic isotope effects (KIEs) were observed for toluene (KIE = 5.4) and mesitylene (KIE = 5.3). Femtosecond laser flash photolysis of (TBP8Cz)MnIII revealed the formation of a tripquintet excited state, which was rapidly converted to a tripseptet excited state. The tripseptet excited state was shown to be the key, activated state that reacts with O2 via a diffusion-limited rate constant. The data allow for a mechanism to be proposed in which the tripseptet excited state reacts with O2 to give the putative (TBP8Cz)MnIV(O2•−), which then abstracts a hydrogen atom from the toluene derivatives in the rate-determining step. The mechanism of hydrogen abstraction is discussed by comparison of the reactivity with the hydrogen abstraction from the same toluene derivatives by cumylperoxyl radical. Taken together, the data suggest a new catalytic method is accessible for the selective oxidation of C-H bonds with O2 and light, and the first evidence for catalytic oxidation of C–H bonds was obtained with 10-methyl-9,10-dihydroacridine as a substrate. PMID:24219426

  15. Usability Testing Of Web Mapping Portals

    Directory of Open Access Journals (Sweden)

    Petr Voldán

    2011-05-01

    Full Text Available This study presents a usability testing as method, which can be used to improve controlling of web map sites. Study refers to the basic principles of this method and describes particular usability tests of mapping sites. In this paper are identified potential usability problems of web sites: Amapy.cz, Google maps and Mapy.cz. The usability testing was focused on problems related with user interfaces, addresses searching and route planning of the map sites.

  16. Valence tautomerism in a high-valent manganese-oxo porphyrinoid complex induced by a Lewis acid.

    Science.gov (United States)

    Leeladee, Pannee; Baglia, Regina A; Prokop, Katharine A; Latifi, Reza; de Visser, Sam P; Goldberg, David P

    2012-06-27

    Addition of the Lewis acid Zn(2+) to (TBP(8)Cz)Mn(V)(O) induces valence tautomerization, resulting in the formation of [(TBP(8)Cz(+•))Mn(IV)(O)-Zn(2+)]. This new species was characterized by UV-vis, EPR, the Evans method, and (1)H NMR and supported by DFT calculations. Removal of Zn(2+) quantitatively restores the starting material. Electron-transfer and hydrogen-atom-transfer reactions are strongly influenced by the presence of Zn(2+).

  17. Critical zone study in Korea: integration of hydrogeology, mineralogy, sedimentology and molecular biogeochemistry

    Science.gov (United States)

    Lee, J. Y.; Kwon, K.; Jo, K. N.; Lee, J. S.

    2015-12-01

    Critical Zone (CZ) is the topmost layer of the Earth ranging from the vegetation canopy down to the soil, groundwater, and bedrock that sustains our ecosystem including human life. This CZ is being greatly influenced by the climate change and anthropogenic forces. We introduce the Critical Zone Frontier Research Laboratory (CFRL), a critical zone research lab recently funded by the Korean government for 2015-2020. The objective of CFRL is to unravel the relationships between climate and CZ changes to propose a prediction model for future responses of CZ to climate change. For this ultimate goal, we establish multiple CZ observatories in Kangwon areas and investigate soil, groundwater, and cave environments by integration of hydrogeology, mineralogy, sedimentology and molecular biogeochemistry. This study will enhance our understanding about CZ and local resolution of a climate change model. This research is financially supported by the Basic Research Laboratory Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT and Future Planning.

  18. Determination of cetirizine dihydrochloride, related impurities and preservatives in oral solution and tablet dosage forms using HPLC.

    Science.gov (United States)

    Jaber, A M Y; Al Sherife, H A; Al Omari, M M; Badwan, A A

    2004-10-29

    An HPLC method was developed and validated for the determination of cetirizine dihydrochloride (CZ) as well as its related impurities in commercial oral solution and tablet formulations. Furthermore, two preservatives associated with the drug formulations, namely, propyl (PP) and butylparabens (BP) were successfully determined by this method. The chromatographic system used was equipped with a Hypersil BDS C18, 5 microm column (4.6 x 250 mm) and a detector set at 230 nm in conjunction with a mobile phase of 0.05 M dihydrogen phosphate:acetonitrile:methanol:tetrahydrofuran (12:5:2:1, v/v/v/v) at a pH of 5.5 and a flow rate of 1 ml min(-1). The calibration curves were linear within the target concentration ranges studied, namely, 2 x 10(2) - 8 x 10(2) microg ml(-1) and 1-4 microg ml(-1) for CZ, 20-100 microg ml(-1) for preservatives and 1-4 microg ml(-1) for CZ related impurities. The limits of detection (LOD) and quantitation (LOQ) for CZ were, respectively, 0.10 and 0.34 microg ml(-1) and for CZ related impurities were in the ranges of 0.08-0.26 microg ml(-1) and 0.28-0.86 microg ml(-1), respectively. The method proved to be specific, stability indicating, accurate, precise, robust and could be used as an alternative to the European pharmacopoeial method set for CZ and its related impurities.

  19. Synthesis gas production by methane partial oxidation on Ni Fe3O4-Ce0.75Zr0.25O2 catalysts: kinetic study

    Energy Technology Data Exchange (ETDEWEB)

    Sosa Vasquez, M.I.; Salinas Gutierrez, J.; Delgado Vigil, D.; Collins-Martinez, V.; Lopez Ortiz, A.

    2011-01-15

    FeCZ is an oxygen carrier material aimed to produce syngas through methane partial oxidation in absence of oxygen gas feed. This research studies the catalytic effect of Ni on FeCZ using an evaluation of the global kinetics (activation energy, reaction rate, order and constant) of its reaction with methane for syngas production. The kinetic study of this material is crucial to realistically determine the feasibility of a potential process and to provide better understanding of the influence of reaction conditions over the material and to help postulate a possible future reaction mechanism that fits the kinetic results of the process. The initial reaction rate was obtained from the slope of the linear region of the weight change signal as a function of time. Results indicate a first order global reaction rate for all materials. Activation energies for samples FeCZ, 0.05NiFeCZ and 2NiFeCZ were 52.2, 39.5 and 28.3 respectively, reflecting the catalytic effect of Ni over the FeCZ global reaction rate.

  20. Fabrication of mucoadhesive chitosan coated polyvinylpyrrolidone/cyclodextrin/clotrimazole sandwich patches for oral candidiasis.

    Science.gov (United States)

    Tonglairoum, Prasopchai; Ngawhirunpat, Tanasait; Rojanarata, Theerasak; Panomsuk, Suwanee; Kaomongkolgit, Ruchadaporn; Opanasopit, Praneet

    2015-11-05

    This study aims to fabricate clotrimazole (CZ)-composite sandwich nanofibers using electrospinning. The CZ-loaded polyvinylpyrrolidone (PVP)/hydroxypropyl-β-cyclodextrin (HPβCD) fiber was coated with chitosan-cysteine (CS-SH)/polyvinyl alcohol (PVA) to increase the mucoadhesive properties and to achieve a sustained release of the drug from the nanofibers. The nanofibers were characterized using scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy and X-ray diffractometry (XRD). The nanofibers mechanical and mucoadhesive properties, drug release, antifungal activity and cytotoxicity were also assessed. The fibers were in the nanoscale with good mucoadhesive properties. The XRPD revealed a molecular dispersion of amorphous CZ in the nanofibers. The initial fast release of CZ from the nanofibers was achieved. Moreover, the sandwich nanofibers coated for longer times resulted in slower release rates compared with the shorter coating times. The CZ-loaded nanofibers killed the Candida significantly faster than the commercial CZ lozenges at 5, 15 and 30 min and were safe for a 2-h incubation. Therefore, these nanofibers may be promising candidates for the treatment of oral candidiasis.

  1. Strong Inhibition of O-Atom Transfer Reactivity for Mn(IV)(O)(π-Radical-Cation)(Lewis Acid) versus Mn(V)(O) Porphyrinoid Complexes.

    Science.gov (United States)

    Zaragoza, Jan Paulo T; Baglia, Regina A; Siegler, Maxime A; Goldberg, David P

    2015-05-27

    The oxygen atom transfer (OAT) reactivity of two valence tautomers of a Mn(V)(O) porphyrinoid complex was compared. The OAT kinetics of Mn(V)(O)(TBP8Cz) (TBP8Cz = octakis(p-tert-butylphenyl)corrolazinato(3-)) reacting with a series of triarylphosphine (PAr3) substrates were monitored by stopped-flow UV-vis spectroscopy, and revealed second-order rate constants ranging from 16(1) to 1.43(6) × 10(4) M(-1) s(-1). Characterization of the OAT transition state analogues Mn(III)(OPPh3)(TBP8Cz) and Mn(III)(OP(o-tolyl)3)(TBP8Cz) was carried out by single-crystal X-ray diffraction (XRD). A valence tautomer of the closed-shell Mn(V)(O)(TBP8Cz) can be stabilized by the addition of Lewis and Brønsted acids, resulting in the open-shell Mn(IV)(O)(TBP8Cz(•+)):LA (LA = Zn(II), B(C6F5)3, H(+)) complexes. These Mn(IV)(O)(π-radical-cation) derivatives exhibit dramatically inhibited rates of OAT with the PAr3 substrates (k = 8.5(2) × 10(-3) - 8.7 M(-1) s(-1)), contrasting the previously observed rate increase of H-atom transfer (HAT) for Mn(IV)(O)(TBP8Cz(•+)):LA with phenols. A Hammett analysis showed that the OAT reactivity for Mn(IV)(O)(TBP8Cz(•+)):LA is influenced by the Lewis acid strength. Spectral redox titration of Mn(IV)(O)(TBP8Cz(•+)):Zn(II) gives Ered = 0.69 V vs SCE, which is nearly +700 mV above its valence tautomer Mn(V)(O)(TBP8Cz) (Ered = -0.05 V). These data suggest that the two-electron electrophilicity of the Mn(O) valence tautomers dominate OAT reactivity and do not follow the trend in one-electron redox potentials, which appear to dominate HAT reactivity. This study provides new fundamental insights regarding the relative OAT and HAT reactivity of valence tautomers such as M(V)(O)(porph) versus M(IV)(O)(porph(•+)) (M = Mn or Fe) found in heme enzymes.

  2. Synthesis, measurements, and theoretical analysis of carbazole derivatives with high-triplet-energy

    Energy Technology Data Exchange (ETDEWEB)

    Li Jianli; Mi Xiaoyun; Wan Yuchun [School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China); Si Zhenjun, E-mail: szj@cust.edu.cn [School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China); Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Praha 6 16610 (Czech Republic); Sun Haiying; Duan Qian [School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China); He Xingquan [School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022 (China); Yan Dong; Wan Sha [School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China)

    2012-05-15

    In order to obtain the blue light-emitting organic materials with high triplet state energy, two 3,5-diphenyl-4H-1,2,4-triazole (Tz) containing carbazole (Cz) derivatives of 9-(4-(3,5-diphenyl-4H-1,2,4-triazol-4-yl)phenyl)-9H-carbazole (TzCz1) and 3,6-di-tert-butyl-9-(4-(3,5-diphenyl-4H-1,2,4-triazol-4-yl)phenyl) -9H-carbazole (TzCz2) are synthesized using Cz acting as the starting material, as well as characterized by the {sup 1}H NMR spectra, ultraviolet-visible (UV-vis) absorption spectra, and the IR absorption spectra. The luminescence quantum yields (LQYs) of TzCz1 and TzCz2 are measured in CH{sub 2}Cl{sub 2} solution to be 32.1% and 47.5%, respectively. The electrochemical analysis and the photophysical measurements suggest that the triplet energy levels and the energy gaps of the highest-occupied orbital and the lowest-unoccupied orbital are 2.83 eV and 3.59 eV for TzCz1, and 2.80 eV and 3.43 eV for TzCz2. At last, the theoretical analyses of their ground state geometries and the simulated UV-vis absorption spectra are carried out at B3LYP1/6-31G Low-Asterisk level. The studies mentioned above indicate that both TzCz1 and TzCz2 are suitable for the host materials of blue light-emitting diodes. - Highlights: Black-Right-Pointing-Pointer Synthesis of two blue light-emitting Carbazole derivatives. Black-Right-Pointing-Pointer Photophysical and electrochemical properties are systematically studied. Black-Right-Pointing-Pointer Theoretical analysis of geometry of the ground states and the UV-vis absorption are performed with Firefly package. Black-Right-Pointing-Pointer The triplet energy levels are measured to be ca. 2.83 eV.

  3. Highly sensitive colorimetric and fluorescent sensor for cyanazine based on the inner filter effect of gold nanoparticles

    Science.gov (United States)

    Dong, Liang; Hou, Changjun; Yang, Mei; Fa, Huanbao; Wu, Huixiang; Shen, Caihong; Huo, Danqun

    2016-06-01

    Cyanazine residue poses a great threat to human health and its derivatives would remain in soils, natural waters, and other environmental domains for a long time. Herein, a simple, rapid, and ultra-sensitive analytical method for the determination of cyanazine (CZ) based on inner filter effect (IFE) of Au nanoparticles (AuNPs) on the fluorescence of CdTe quantum dots (QDs) is first described in this study. With the presence of citrate-stabilized AuNPs, the fluorescence of GSH-capped CdTe QDs was remarkably quenched by AuNPs via IFE. The fluorescence of the AuNP-CdTe QD system was recovered upon addition of CZ. CZ can adsorb on to the surface of AuNPs due to its cyano group that has good affinity with gold, which could induce the aggregation of AuNPs accompanying color change from red to blue. Thus, the IFE of AuNPs on CdTe QDs was weakened, and the fluorescence intensity of CdTe QDs was recovered accordingly. A good linear correlation for detection of CZ was exhibited from 0.05 to 9 μM, and the detection limit reached 0.1568 μM, which was much lower than the safety limit required by the USA, the UK, and China. In order to probe into the selectivity of AuNPs towards CZ over other pesticides, various frequently used pesticides were mixed with AuNPs. AuNP composite solution shows good selectivity towards CZ among other pesticides. This method was successfully carried out for the assessment of CZ in real samples with satisfactory results, which revealed many advantages such as high sensitivity, low cost, and non-time-consuming compared with traditional methods.

  4. Barriers and potential solutions for Critical Zone data integration between environmental genomics and the geosciences

    Science.gov (United States)

    Aronson, E. L.; Meyer, F.; Packman, A. I.; Mayorga, E.

    2015-12-01

    The Earth's permeable near-surface layer from bedrock to canopy is referred to as the Critical Zone (CZ). Integration of bio- and geoscience data is critical for understanding physical, biological and chemical interactions in the CZ. Genomic and meta-genomic scientists study organisms both in laboratory settings and in the environment, in order to understand the interactions of organisms with the environment. Geoscientists are using environmental data to describe and model dynamics of physical and chemical properties. Yet, there is no agreed upon method for integrating genomic and environmental data to address interactions of living and non-living components of the CZ. There are standards for data interchange being developed in the geosciences and genomics sciences, via standards organization such as the Open Geospatial Consortium (OGC), as well as by research communities in biogeochemistry, hydrology, climatology, and other fields. These are in parallel to, but typically not in coordination with the standards the Genomics Standards Consortium (GSC) is developing for genomics. In addition, efforts are being made to allow for intercompatability of these CZ data with data generated by NEON, Inc. The interoperability of these types of data is limited with current software and cyberinfrastructure. A group of CZ geoscientists, environmental genomic scientists and cyberinfrastructure scientists are coming together to develop a set of common data collection and integration methods and sets of common standards. The data generated by this effort across multiple CZ sites (including the US CZ Observatories, or CZOs) around the world, along with NEON facility data, will be used to test EarthCube (an NSF initiative to develop cyberinfrastructure for the geosciences) cyberinfrastructure, with the goal of bridging this gap in standards and interoperability. Potential solutions to these issues of interoperability will be presented, and a way forward will be described.

  5. Fabrication of a novel scaffold of clotrimazole-microemulsion-containing nanofibers using an electrospinning process for oral candidiasis applications.

    Science.gov (United States)

    Tonglairoum, Prasopchai; Ngawhirunpat, Tanasait; Rojanarata, Theerasak; Kaomongkolgit, Ruchadaporn; Opanasopit, Praneet

    2015-02-01

    Clotrimazole (CZ)-loaded microemulsion-containing nanofiber mats were developed as an alternative for oral candidiasis applications. The microemulsion was composed of oleic acid (O), Tween 80 (T80), and a co-surfactant such as benzyl alcohol (BzOH), ethyl alcohol (EtOH) or isopropyl alcohol (IPA). The nanofiber mats were obtained by electrospinning a blended solution of a CZ-loaded microemulsion and a mixed polymer solution of 2% (w/v) chitosan (CS) and 10% (w/v) polyvinyl alcohol (PVA) at a weight ratio of 30:70. The nanofiber mats were characterized using various analytical techniques. The entrapment efficiency, drug release, antifungal activity and cytotoxicity were investigated. The average diameter of the nanofiber mats was in the range of 105.91-125.56 nm. The differential scanning calorimetry (DSC) and powder X-ray diffractometry (PXRD) results revealed the amorphous state of the CZ-loaded microemulsions incorporated into the nanofiber mats. The entrapment efficiency of CZ in the mats was approximately 72.58-98.10%, depended on the microemulsion formulation. The release experiment demonstrated different CZ release characteristics from nanofiber mats prepared using different CZ-loaded microemulsions. The extent of drug release from the fiber mats at 4h was approximately 64.81-74.15%. The release kinetics appeared to follow Higuchi's model. In comparison with CZ lozenges (10mg), the nanofiber mats exhibited more rapid killing activity. Moreover, the nanofiber mats demonstrated desirable mucoadhesive properties and were safe for 2h. Therefore, the nanofiber mats have the potential to be promising candidates for oral candidiasis applications.

  6. Multiscale geophysical imaging of the critical zone

    Science.gov (United States)

    Parsekian, A. D.; Singha, K.; Minsley, B. J.; Holbrook, W. S.; Slater, L.

    2015-03-01

    Details of Earth's shallow subsurface—a key component of the critical zone (CZ)—are largely obscured because making direct observations with sufficient density to capture natural characteristic spatial variability in physical properties is difficult. Yet this inaccessible region of the CZ is fundamental to processes that support ecosystems, society, and the environment. Geophysical methods provide a means for remotely examining CZ form and function over length scales that span centimeters to kilometers. Here we present a review highlighting the application of geophysical methods to CZ science research questions. In particular, we consider the application of geophysical methods to map the geometry of structural features such as regolith thickness, lithological boundaries, permafrost extent, snow thickness, or shallow root zones. Combined with knowledge of structure, we discuss how geophysical observations are used to understand CZ processes. Fluxes between snow, surface water, and groundwater affect weathering, groundwater resources, and chemical and nutrient exports to rivers. The exchange of gas between soil and the atmosphere have been studied using geophysical methods in wetland areas. Indirect geophysical methods are a natural and necessary complement to direct observations obtained by drilling or field mapping. Direct measurements should be used to calibrate geophysical estimates, which can then be used to extrapolate interpretations over larger areas or to monitor changing processes over time. Advances in geophysical instrumentation and computational approaches for integrating different types of data have great potential to fill gaps in our understanding of the shallow subsurface portion of the CZ and should be integrated where possible in future CZ research.

  7. Earth's Critical Zone and hydropedology: concepts, characteristics, and advances

    Directory of Open Access Journals (Sweden)

    H. S. Lin

    2009-04-01

    Full Text Available The Critical Zone (CZ is a holistic framework for integrated studies of water with soil, rock, air, and biotic resources in terrestrial environments. This is consistent with the recognition of water as a unifying theme for research on complex environmental systems. The CZ ranges from the top of the vegetation down to the bottom of the aquifer, with a highly variable thickness (from <0.001 to >10 km. The pedosphere is the foundation of the CZ, which represents a geomembrance across which water and solutes, as well as energy, gases, solids, and organisms are actively exchanged with the atmosphere, biosphere, hydrosphere, and lithosphere to create a life-sustaining environment. Hydropedology – the science of the behaviour and distribution of soil-water interactions in contact with mineral and biological materials in the CZ – is an important contributor to CZ research. This article reviews and discusses the basic ideas and fundamental features of the CZ and hydropedology, and suggests ways for their advances. An "outward" growth model, instead of an "inward" contraction, is suggested for propelling soil science forward. The CZ is the right platform for synergistic collaborations across disciplines. The reconciliation of the geological (or "big" cycle and the biological (or "small" cycle that are orders of magnitude different in space and time is a key to understanding and predicting complex CZ processes. Because of the layered nature of the CZ and the general trend of increasing density with depth, response and feedback to climate change take longer from the above-ground zone down to the soil zone and further to the groundwater zone. Interfaces between layers and cycles are critical controls of the landscape-soil-water-ecosystem dynamics, which present fertile grounds for interdisciplinary research. Ubiquitous heterogeneity in the CZ can be addressed by environmental gradients and landscape patterns, where hierarchical structures control the

  8. Structure-Property Study on Two New D-A Type Materials Comprising Pyridazine Moiety and the OLED Application as Host.

    Science.gov (United States)

    Liu, Shaojie; Zhang, Xunlu; Ou, Changjin; Wang, Shulei; Yang, Xinli; Zhou, Xinhui; Mi, Baoxiu; Cao, Dapeng; Gao, Zhiqiang

    2017-08-09

    In this paper, two new pyridazine based donor-acceptor type materials, i.e., 3CzPyaPy: 9,9'-(3-(6-(9H-carbazol-9-yl)pyridazin-3-yl)pyridine-2,6-diyl)bis(9H-carbazole) and 4CzPyPyaPy: 3,6-bis(2,6-di(9H-carbazol-9-yl)pyridin-3-yl)pyridazine, were synthesized with high yields. These two materials exhibited strong absorption/emission with high molar extinction coefficients and moderate photoluminescence quantum yield. The glass transition temperature of 3CzPyaPy was detected to be as high as 131 °C, showing its high thermal stability. Although the absorption energies and oxidation/reduction behaviors of the two materials were similar, the emission from 4CzPyPyaPy with longer effective-conjugation length presented hypsochromic shift both in films and in dilute solutions, contradicting to the common sense. The single crystal structure study disclosed their different space stretching and packing: 3CzPyaPy was twisted in larger angles and adopted dimerlike packing, while 4CzPyPyaPy showed smaller torsion angles and exhibited slipped herringbone packing. The dimerlike packing in 3CzPyaPy is responsible for its bathochromic shift of emission in solid state, while its unsymmetrical molecular structure accounts for that in solution. We believe that the unsymmetrical molecular structure of 3CzPyaPy is partially responsible for its high thermal-stability and also responsible for its HOMO dispersion which renders it slightly more difficult to oxidize. 3CzPyaPy was proved to be a bipolar-transport material and when served as a phosphor host, a green phosphorescent device achieved maximum efficiencies of 54.0 cd A(-1), 42.4 lm W(-1), and 17.7%, which are among the best with nonoptimized device structure, demonstrating its great potential for optoelectronic application. Furthermore, the new synthesized pyridazine derivatives and the corresponding structural and molecular-packing influences on material properties give a new insight into molecule tailoring.

  9. Results from Coalbed Methane Drilling in Winn Parish, Louisiana

    Science.gov (United States)

    Hackley, Paul C.; Warwick, Peter D.; Breland, F. Clayton; Richard, Troy E.; Ross, Kirk

    2007-01-01

    A coalbed methane (CBM) well in Winn Parish, Louisiana, named CZ Fee A No. 114, was drilled by Vintage Petroleum, Inc., in January 2004. The CZ Fee A No. 114 CBM well was drilled to a total depth of 3,114 ft and perforated at 2,730-2,734 ft in a Wilcox Group (Paleocene-Eocene) coal bed. Analytical data from the drilling project have been released by Vintage Petroleum, Inc., and by the current well operator, Hilcorp Energy Corporation (see Appendix) to the Louisiana Geological Survey (LGS) and the U.S. Geological Survey (USGS) for publication. General information about the CZ Fee A No. 114 CBM well is compiled in Table 1, and analytical data from the well are included in following sections. The CZ Fee A No. 114 well is located in eastern Winn Parish, approximately 30 mi east of where Wilcox Group strata crop out on the Sabine Uplift (fig. 1). In the CZ Fee A No. 114 well, lower Wilcox Paleocene coal beds targeted for CBM production occur at depths of 2,600-3,000 ft (fig. 2). Average monthly gas production for the reporting period August 1, 2004, through May 1, 2005, was 450 thousand cubic feet (Mcf) (Louisiana Department of Natural Resources, 2005).

  10. Solvent-dependent fluorescence enhancement and piezochromism of a carbazole-substituted naphthopyran

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Lihui; Wang, Aixia [Faculty of Chemistry, Northeast Normal University, Changchun 130024 (China); Wang, Guang, E-mail: wangg923@nenu.edu.cn [Faculty of Chemistry, Northeast Normal University, Changchun 130024 (China); Munyentwari, Alexis [Faculty of Chemistry, Northeast Normal University, Changchun 130024 (China); Zhou, Yihan, E-mail: yhzhou@ciac.ac.cn [National Analytical Research Center of Electrochemistry and Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (China)

    2015-09-15

    A novel carbazole-substituted naphthopyran, 3,3-bis-(4-carbazolylphenyl)-[3H]-naphtho[2,1-b]pyran (CzNP) was designed and synthesized. The new compound exhibited normal photochromism in dichloromethane solution and the UV irradiation did not influence its fluorescence. On the contrary, the fluorescence of CzNP in N,N-dimethylformamide (DMF) was intensively enhanced to 29 times after 60 min of the UV irradiation and this enhanced fluorescence can be quenched by addition of triethylamine (TEA). The study of enhanced extent of fluorescence of CzNP in solvents with different polarities and in mixed solvents demonstrated that the enhanced fluorescence is dependent on the polarity of solvents. The larger the polarity of solvent was, the stronger was the fluorescence of CzNP. CzNP also exhibited piezochromic performance and the pressure led to the cleavage of the C–O bond of pyran ring. - Highlights: • A carbazole-substituted photochromic naphthopyran was designed and synthesized. • The fluorescence was enhanced under the existence of DMF and UV irradiation. • The polarity of solvent was the dominating factor to affect the fluorescence. • The new compound also displayed piezochromic performance.

  11. Influence of climate variability on water partitioning and effective energy and mass transfer in a semi-arid critical zone

    Science.gov (United States)

    Zapata-Rios, Xavier; Brooks, Paul D.; Troch, Peter A.; McIntosh, Jennifer; Rasmussen, Craig

    2016-03-01

    The critical zone (CZ) is the heterogeneous, near-surface layer of the planet that regulates life-sustaining resources. Previous research has demonstrated that a quantification of the influxes of effective energy and mass transfer (EEMT) to the CZ can predict its structure and function. In this study, we quantify how climate variability in the last 3 decades (1984-2012) has affected water availability and the temporal trends in EEMT. This study takes place in the 1200 km2 upper Jemez River basin in northern New Mexico. The analysis of climate, water availability, and EEMT was based on records from two high-elevation SNOTEL stations, PRISM data, catchment-scale discharge, and satellite-derived net primary productivity (MODIS). Results from this study indicated a decreasing trend in water availability, a reduction in forest productivity (4 g C m-2 per 10 mm of reduction in precipitation), and decreasing EEMT (1.2-1.3 MJ m2 decade-1). Although we do not know the timescales of CZ change, these results suggest an upward migration of CZ/ecosystem structure on the order of 100 m decade-1, and that decadal-scale differences in EEMT are similar to the differences between convergent/hydrologically subsidized and planar/divergent landscapes, which have been shown to be very different in vegetation and CZ structure.

  12. Coadministration of cruzipain and GM-CSF DNAs, a new immunotherapeutic vaccine against Trypanosoma cruzi infection.

    Science.gov (United States)

    Cerny, Natacha; Sánchez Alberti, Andrés; Bivona, Augusto E; De Marzi, Mauricio C; Frank, Fernanda M; Cazorla, Silvia I; Malchiodi, Emilio L

    2016-01-01

    Therapeutic vaccine research and development are especially important in Chagas disease considering the characteristics of the chronic infection and the number of people in the Americas living with a parasite infection for decades. We have previously reported the efficacy of attenuated Salmonella enterica (S) carrying plasmid encoding cruzipain (SCz) to protect against Trypanosoma cruzi infection. In the present work we investigated whether Cz DNA vaccine immunotherapy could be effective in controlling an ongoing T. cruzi infection in mice. We here report the intramuscular administration of naked Cz DNA or the oral administration of Salmonella as Cz DNA delivery system as therapeutic vaccines in mice during acute or chronic infection. The coadministration of a plasmid encoding GM-CSF improved vaccine performance, indicating that the stimulation of innate immune cells is needed in the event of an ongoing infection. These therapeutic vaccines were able to address the response to a protective and sustained Th1 biased profile not only against Cz but also against a variety of parasite antigens. The combined therapeutic vaccine during the chronic phase of infection prevents tissue pathology as shown by a reduced level of enzyme activity characteristic of tissue damage and a tissue status compatible with normal tissue. The obtained results suggest that immunotherapy with Cz and GM-CSF DNAs, either alone or in combination with other drug treatments, may represent a promising alternative for Chagas disease therapy.

  13. Klaster Bibliotek Bi@lskich próbą poszukiwania płaszczyzn synergii lokalnych bibliotek

    Directory of Open Access Journals (Sweden)

    Marzena Dziołak

    2012-01-01

    Full Text Available W części wprowadzającej artykułu pokrótce przedstawiono koncepcję i typologię klastrów, a także cechy wspólne i różnice między klastrami a organizacjami sieciowymi. Prezentowane w drugiej części artykułu zagadnienia dotyczą szeroko rozumianego zarządzania: strategii powstawania klastra, barier rozwoju, czynników decydujących o powodzeniu projektu i korzyści wynikających z jego funkcjonowania w otoczeniu lokalnym. W części końcowej zaprezentowano przykłady współdziałania uczestników klastra wyzwalające efekt synergii.

  14. Crystal front shape control by use of an additional heater in a Czochralski sapphire single crystal growth system

    Science.gov (United States)

    Hur, Min-Jae; Han, Xue-Feng; Choi, Ho-Gil; Yi, Kyung-Woo

    2017-09-01

    The quality of sapphire single crystals used as substrates for LED production is largely influenced by two defects: dislocation density and bubbles trapped in the crystal. In particular, the dislocation density has a higher value in sapphire grown by the Czochralski (CZ) method than by other methods. In the present study, we predict a decreased value for the convexity and thermal gradient at the crystal front (CF) through the use of an additional heater in an induction-heated CZ system. In addition, we develop a solute concentration model by which the location of bubble formation in CZ growth is calculated, and the results are compared with experimental results. We further calculate the location of bubble entrapment corresponding with the use of an additional heater. We find that sapphire crystal growth with an additional heater yields a decreased thermal gradient at the CF, together with decreased CF convexity, improved energy efficiency, and improvements in terms of bubble formation location.

  15. Radar Cross Section Prediction for Coated Perfect Conductors with Arbitrary Geometries.

    Science.gov (United States)

    1986-01-01

    DELIrE + UNrr-26,FORM-%WNORMATIED) DO 147 J-1,JUNKNS 147 WlRrTE26XCZ(IJ),I-1J) TYPE *,’ CZ6 COMPLETED’ C RETURN...3001 CONTINUE ENDEF 2002 CONTINUE ENDEF 2003 CONTINUE 2004 CONTINUE 2005 CONTINUE C C OPENFILE-’CZ7’,STATUS-’NEW’DISPOSE-’ DELIrE + UNrT-27,FORM...FE-𔃾’.SrATUS-’DISOSE. DELIrE , + UNrr-24,FORM- UNFORM.A1TEJ) DO 147 J-1,NUNKNS 147 WRrrE24XCZ(IJflIJuNKNS) C C TYPE *,’ CZ13 COMPLETED’ C RETURN END

  16. Advancing Replicable Solutions for High-Performance Homes in the Southeast

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, S. G. [Partnership for Home Innovation, Upper Marlboro, MD (United States). Southface Energy Inst.; Sweet, M. L. [Partnership for Home Innovation, Upper Marlboro, MD (United States). Southface Energy Inst.; Francisco, A. [Partnership for Home Innovation, Upper Marlboro, MD (United States). Southface Energy Inst.

    2016-03-01

    The work presented in this report advances the goals of the U.S. Department of Energy Building America program by improving the energy performance of affordable and market-rate housing. Southface Energy Institute (Southface), part of the U.S. Department of Energy Building America research team Partnership for Home Innovation, worked with owners and builders with various market constraints and ultimate goals for three projects in three climate zones (CZs): Savannah Gardens in Savannah, Georgia (CZ 2); JMC Patrick Square in Clemson, South Carolina (CZ 3); and LaFayette in LaFayette, Georgia (CZ 4). This report documents the design process, computational energy modeling, construction, envelope performance metrics, long-term monitoring results, and successes and failures of the design and execution of these high-performance homes.

  17. Simulation of V/G During Φ450 mm Czochralski Grown Silicon Single Crystal Growth Under the Different Crystal and Crucible Rotation Rates

    Directory of Open Access Journals (Sweden)

    Guan X J

    2016-01-01

    Full Text Available For discovering the principle of processing parameter combination for the stable growth and better wafer quality of Φ450 mm Czochralski grown silicon single crystal (shortly called Cz silicon crystal, the effects of crystal rotation rate and crucible one on the V/G ratio were simulated by using CGSim software. The results show that their effect laws on the V/G ratio for Φ450 mm Cz silicon crystal growth are some different from that for Φ200 mm Cz silicon one, and the effects of crucible rotation rate are relatively smaller than that of crystal one and its increasing only makes the demarcation point between two regions with different V/G ratio variations outward move along radial direction, and it promotes the wafer quality to weaken crystal rotation rate and strengthen crucible one.

  18. Novel conjugated polymers based on dithieno[3,2-b:6,7-b]carbazole for solution processed thin-film transistors.

    Science.gov (United States)

    Chen, Yagang; Liu, Chengfang; Tian, Hongkun; Bao, Cheng; Zhang, Xiaojie; Yan, Donghang; Geng, Yanhou; Wang, Fosong

    2012-10-26

    Two conjugated polymers (CPs) P-tCzC12 and P-tCzC16 comprising alternating dithieno[3,2-b:6,7-b]carbazole and 4,4'-dihexadecyl-2,2'-bithiophene units have been designed and synthesized. Upon thermal annealing, they can form ordered thin films in which the polymer backbones dominantly adopted an edge-on orientation respective to the substrate with a lamellar spacing of ≈24 Å and a π-stacking distance of ≈3.7 Å. Organic thin-film transistors (OTFTs) were fabricated by solution casting. A hole mobility of 0.39 cm(2) V(-1) s(-1) has been demonstrated with P-tCzC16. This value is the highest among the CPs containing heteroacenes larger than 4 rings.

  19. Preparation of ceria-zirconia by modified coprecipitation method and its supported Pd-only three-way catalyst.

    Science.gov (United States)

    Lan, Li; Chen, Shanhu; Cao, Yi; Zhao, Ming; Gong, Maochu; Chen, Yaoqiang

    2015-07-15

    A CeO2-ZrO2 compound with mixed phase composition (CZ4) was prepared by modified co-precipitation method, and for comparison, single-phase Ce(0.2)Zr(0.8)O2, Ce(0.5)Zr(0.5)O2 and Ce(0.8)Zr(0.2)O2 were synthesized via simultaneous co-precipitation method. The textural, structural and redox properties, together with the catalytic performance of the supported Pd-only three-way catalysts were investigated systematically. The results revealed that the generation of numerous interface sites in Pd/CZ4 due to its mixed phase composition (as confirmed by TEM observation) had a positive influence on modifying its structural, redox properties and thermal stability. The XRD and Raman results revealed that the highest structural stability was obtained by Pd/CZ4 with negligible lattice variation and slightest grain growth after aging treatment. The XPS analysis demonstrated that the compositional heterogeneity of Pd/CZ4 could facilitate the formation of Ce(3+), and was beneficial to preserve high dispersion of Pd as well as maintain Pd at a more oxidized state. The H2-TPR and oxygen storage capacity measurements indicated that Pd/CZ4 possessed highest reduction ability as well as largest oxygen storage capacity regardless of thermal aging treatment. And consequently Pd/CZ4 exhibited improved three-way catalytic activity compared with the catalysts supported on single-phase Ce(x)Zr(1-x)O2 both before and after thermal aging treatment.

  20. Inhibitory activity of Indian spice plant Cinnamomum zeylanicum extracts against Alternaria solani and Curvularia lunata, the pathogenic dematiaceous moulds

    Directory of Open Access Journals (Sweden)

    Sharma Bechan

    2009-03-01

    Full Text Available Abstract Background Dematiaceous moulds are pathogenic microorganisms and act as etiological agents of mycoses with different degrees of severity in humans and animals. These moulds also cause loss of food crops and storage food products. The information regarding antimicrobial efficacy of the plant preparations on these moulds is scanty. The present study reveals phytochemical characterization and the effect of bark and leaf extracts of Indian spice plant, Cinnamomum zeylanicum (Cz, against the growth of two species of dematiaceous moulds, Alternaria solani and Curvularia lunata. Methods Cz bark and leaf samples were sequentially extracted in different solvents using Soxhlet apparatus. Phytochemical analyses of extracts were done as per standard protocols. The antifungal bioassay of extracts was done by hanging drop technique. The inhibition of fungal spore germination was monitored under influence of three different concentrations of extracts. Results The lowest test concentration (50 μg/ml of extracts of Cz bark prepared into acetone and that of Cz leaf into petroleum ether and ethanol exhibited complete inhibition (100% of spore germination in both the moulds. At 100 μg/ml concentration all the extracts showed about 50 to 100% inhibition. However, the treatment of the spores of the two fungal species with highest concentration (500 μg/ml of bark and leaf extracts in all the solvents showed 100% fungicidal activity as it completely arrested the germination of spores. Relatively lower activity of aqueous extracts at 50 and 100 μg/ml concentrations suggests that the antifungal ingredients present in Cz bark and leaf are more soluble in organic solvents than water. Conclusion The results demonstrated that the Cz bark and leaves contain certain fungicidal constituents exhibiting potential antimould activity against A. solani and C. lunata.

  1. Evaluation of Three Models for Simulating Pesticide Runoff from Irrigated Agricultural Fields.

    Science.gov (United States)

    Zhang, Xuyang; Goh, Kean S

    2015-11-01

    Three models were evaluated for their accuracy in simulating pesticide runoff at the edge of agricultural fields: Pesticide Root Zone Model (PRZM), Root Zone Water Quality Model (RZWQM), and OpusCZ. Modeling results on runoff volume, sediment erosion, and pesticide loss were compared with measurements taken from field studies. Models were also compared on their theoretical foundations and ease of use. For runoff events generated by sprinkler irrigation and rainfall, all models performed equally well with small errors in simulating water, sediment, and pesticide runoff. The mean absolute percentage errors (MAPEs) were between 3 and 161%. For flood irrigation, OpusCZ simulated runoff and pesticide mass with the highest accuracy, followed by RZWQM and PRZM, likely owning to its unique hydrological algorithm for runoff simulations during flood irrigation. Simulation results from cold model runs by OpusCZ and RZWQM using measured values for model inputs matched closely to the observed values. The MAPE ranged from 28 to 384 and 42 to 168% for OpusCZ and RZWQM, respectively. These satisfactory model outputs showed the models' abilities in mimicking reality. Theoretical evaluations indicated that OpusCZ and RZWQM use mechanistic approaches for hydrology simulation, output data on a subdaily time-step, and were able to simulate management practices and subsurface flow via tile drainage. In contrast, PRZM operates at daily time-step and simulates surface runoff using the USDA Soil Conservation Service's curve number method. Among the three models, OpusCZ and RZWQM were suitable for simulating pesticide runoff in semiarid areas where agriculture is heavily dependent on irrigation.

  2. Investigating the influence of subsurface heterogeneity on chemical weathering in the critical zone using high resolution reactive transport models

    Science.gov (United States)

    Pandey, S.; Rajaram, H.

    2014-12-01

    The critical zone (CZ) represents a major life-sustaining realm of the terrestrial surface. The processes controlling the development and transformation of the CZ are important to continued health of the planet as human influence continues to grow. The CZ encompasses the shallow subsurface, a region of reaction, unsaturated flow, and transport. Chemical weathering in the subsurface is one of the important processes involved in the formation and functioning of the CZ. We present two case studies of reactive transport modeling to investigate the influence of subsurface heterogeneity and unsaturated flow on chemical weathering processes in the CZ. The model is implemented using the reactive transport code PFLOTRAN. Heterogeneity in subsurface flow is represented using multiple realizations of conductive fracture networks in a hillslope cross-section. The first case study is motivated by observations at the Boulder Creek Critical Zone Observatory (BCCZO) including extensive hydrologic and geochemical datasets. The simulations show that fractures greatly enhance weathering as compared to a homogeneous porous medium. Simulations of north-facing slope hydrology with prolonged snowmelt pulses also increases weathering rates, showing the importance of slope aspect on weathering intensity. Recent work elucidates deteriorating water quality caused by climate change in the CZ of watersheds where acid rock drainage (ARD) occurs. The more complex reactions of ARD require a customized kinetic reaction module with PFLOTRAN. The second case study explores the mechanisms by which changes in hydrologic forcing, air and ground temperatures, and water table elevations influence ARD. For instance, unreacted pyrite exposed by a water table drop was shown to produce a 125% increase in annual pyrite oxidization rate, which provides one explanation for increased ARD.

  3. Screening and characterization of a high ethyl acetate-producing yeast%1株乙酸乙酯高产酵母的筛选及其特性研究

    Institute of Scientific and Technical Information of China (English)

    陈维新; 李静; 王瑶; 黄桂凤; 邓毛程

    2015-01-01

    以腐烂菠萝为原料,通过发酵筛选和产物分析,获得1株乙酸乙酯高产菌种CZ-17.经过形态特征、生理生化特征和18S rDNA分子生物学分析,该菌种被鉴定为马克斯克鲁维酵母(Kluyveromyces marxianus).通过发酵条件的优选试验,确定菌种CZ-17的最佳摇瓶发酵条件为:温度28℃、初始pH值为5.5,转速180 r/min,乙酸乙酯的最高产量达3.13 g/L.在含有0~ 160 g/L NaCl的培养基中进行耐盐性试验,菌种CZ-17表现出较强的耐盐性.%By fermentation screening and product analysis, a strain named CZ-17 with high ethyl acetate-production was isolated from natural rotten pineapple.The strain CZ-17 was identified as Kluyveromyces marxianus by morphological characteristics observation, physiological and biochemical test and 18S rDNA sequences analysis.By means of optimal tests, the best fermentation conditions for ethyl acetate production were determined as temperature of 28 ℃, initial pH of 5.5 and rotation speed of 180 r/min.The highest yield of ethyl acetate reached 3.13 g/L under the optimal conditions.Series of salt tolerance tests were performed in a medium containing 0 ~ 160 g/L sodium chloride.Result showed that the strain CZ-17 possessed great salt resistance.

  4. Inhibitory activity of Indian spice plant Cinnamomum zeylanicum extracts against Alternaria solani and Curvularia lunata, the pathogenic dematiaceous moulds.

    Science.gov (United States)

    Mishra, Ajay K; Mishra, Amita; Kehri, H K; Sharma, Bechan; Pandey, Abhay K

    2009-03-07

    Dematiaceous moulds are pathogenic microorganisms and act as etiological agents of mycoses with different degrees of severity in humans and animals. These moulds also cause loss of food crops and storage food products. The information regarding antimicrobial efficacy of the plant preparations on these moulds is scanty. The present study reveals phytochemical characterization and the effect of bark and leaf extracts of Indian spice plant, Cinnamomum zeylanicum (Cz), against the growth of two species of dematiaceous moulds, Alternaria solani and Curvularia lunata. Cz bark and leaf samples were sequentially extracted in different solvents using Soxhlet apparatus. Phytochemical analyses of extracts were done as per standard protocols. The antifungal bioassay of extracts was done by hanging drop technique. The inhibition of fungal spore germination was monitored under influence of three different concentrations of extracts. The lowest test concentration (50 microg/ml) of extracts of Cz bark prepared into acetone and that of Cz leaf into petroleum ether and ethanol exhibited complete inhibition (100%) of spore germination in both the moulds. At 100 microg/ml concentration all the extracts showed about 50 to 100% inhibition. However, the treatment of the spores of the two fungal species with highest concentration (500 microg/ml) of bark and leaf extracts in all the solvents showed 100% fungicidal activity as it completely arrested the germination of spores. Relatively lower activity of aqueous extracts at 50 and 100 microg/ml concentrations suggests that the antifungal ingredients present in Cz bark and leaf are more soluble in organic solvents than water. The results demonstrated that the Cz bark and leaves contain certain fungicidal constituents exhibiting potential antimould activity against A. solani and C. lunata.

  5. Critical Zone Science and Global Societal Challenges

    Science.gov (United States)

    Goldhaber, M. B.; Banwart, S. A.

    2014-12-01

    Earth's Critical Zone (CZ) is the thin outer veneer of our planet from the top of the tree canopy to the bottom of our drinking water aquifers that supports almost all human activity. Despite its fundamental importance to terrestrial life, understanding of the operation of the coupled geologic, hydrologic, topographic, and biotic CZ processes across time and space is far from complete. These interactions are complex and they establish a mechanistic 'chain of impact' that transmits the effects of environmental change throughout the CZ. Characterization of these processes is made more urgent by the fact that globally, the CZ is experiencing ever-increasing pressure from growth in human population and wealth. Within the next four decades, demand for food and fuel is expected to double along with a more than 50% increase in demand for clean water. Understanding, predicting and managing intensification of land use and associated economic services, while mitigating and adapting to rapid climate change, is now one of the most pressing societal challenges of the 21st century. In this talk we summarize the profound global societal impacts to the Earth's near surface arising from exponential human population growth, increasing affluence, and technological advance, to provide context for discussions on constructing an array of CZ observatories to both characterize fundamental critical zone processes and forecast the effects of planetary change. We will suggest goals and options relevant to planning for a future international array of CZ observatories and a research agenda that matches the urgency of the projected resource demands and environmental pressures of the coming four decades.

  6. Electrotherapy

    OpenAIRE

    Slavíček, Milan

    2008-01-01

    Tato bakalářská práce se zabývá metodami fyziatrické léčby a realizací generátoru a přípravku pro elektroléčbu. V první části práce je elektroléčba rozebrána podrobněji a ostatní metody jsou uvedeny jen stručně (jsou uvedeny pro úplnost). Při rozboru elektroléčby byla hlavní pozornost věnována těm proudů, které se v současnosti používají nejvíce. Jsou zmíněny i diagnózy, pro které je elektroléčba vhodná. Druhá část této práce se zabývá návrhem generátoru pro elektroléčbu v prostředí Labview a...

  7. Zpracování řečových signálů ve spektrální oblasti

    OpenAIRE

    PAVLÍČEK, TOMÁŠ

    2012-01-01

    Hlavním cílem bakalářské práce je seznámení s formanty, metodami zpracování řečových signálů ve spektrální oblasti a vytvoření autonomního programu na určování formantů. V první části je pozornost věnována definici formantu, vztahu češtiny k formantům a uvedení a popsání použití formantů v praxi. Dále je zde představeno předzpracování signálu před samotnou analýzou. Práce obsahuje výčet nejpoužívanějších metod výpočtu spektra řečových signálů se zaměřením především na odhad spektra pomocí lin...

  8. Optimalizace metody PCR-RFLP pro taxonomické zařazení kvasinek

    OpenAIRE

    Olivová, Radana

    2009-01-01

    Tato diplomová práce se zabývá optimalizací metody PCR – RFLP pro taxonomické zařazení kvasinek. Konvenční metody pro identifikaci kvasinek jsou časově náročné. Molekulárně biologické metody založené na PCR slouží k rychlé a precizní identifikaci v porovnání s tradičními fenotypovými metodami. V této práci byla použita molekulárně biologická metoda PCR – RFLP, která bere v úvahu , že v ribozomální DNA kvasinek se opakují konzervativní nekódující oblasti(tzv. spacery), jež jsou charakteristick...

  9. Podpora tvorby map pomocí metod zpracování obrazu

    OpenAIRE

    Jaroš, Ján

    2012-01-01

    Tato bakalářská práce se zabývá metodami detekce vybraných objektů ve videu a importováním těchto objektů do centrální databáze OpenStreetMap na základě jejich geografické poloze. Zaměřena je z velké části na rozpoznávání dopravních značek.  První část stručně popisuje některé nejpoužívanější metody a samotný projekt OpenStreetMap. V nasledujících kapitolách je uveden podrobnější přehled použitých metod navrhnutého systému, jeho implementace a testování. Závěr obsahuje zhodnocení celé práce a...

  10. The Valve Gear Systems Timing Parameters Identification for Marine Diesel Engines Diagnostics / Identyfikacja Parametrów Układów Rozrządu Silników Okrętowych Dla Potrzeb Diagnostyki

    Directory of Open Access Journals (Sweden)

    Lus Tomasz

    2015-09-01

    Full Text Available W referacie przedstawiono wyniki badań, których celem było opracowanie metody diagnozowania okrętowych szybkoobrotowych silników tłokowych. Polska Marynarka Wojenna eksploatuje znaczną liczbę silników tego typu również na okrętach podwodnych. Silniki tego typu nie posiadają zaworów indykatorowych, co komplikuje możliwość oceny procesu spalania i ich stanu technicznego. Akademia Marynarki Wojennej w Gdyni od lat prowadzi badania związane z rozwojem metod diagnozowania okrętowych tłokowych silników spalinowych. W ostatnich latach prowadzone są prace nad metodami diagnozowania szybkoobrotowych silników okrętowych bazującymi na analizie obwiedni przyspieszeń drgań generowanych przez układy rozrządu zaworowego i układ paliwowy. W referacie zaprezentowano wybrane wyniki badań prowadzonych na silnikach Mercedes-Maybach typu MB820 stosowanych na okrętach podwodnych klasy Kobben.

  11. Charakterizace chemického složení dehtu po zplyňování biomasy

    OpenAIRE

    Mahelová, Zora

    2016-01-01

    Biomasa je obnovitelný zdroj energie a představuje vhodnou alternativu fosilních paliv. Vhodnými metodami energetického využití biomasy jsou její spalování nebo zplyňování. V posledních letech je velký zájem právě o zplyňování, jehož principem je konverze organického materiálu na využitelný plynný produkt, zvaný syntézní plyn. Ten je možné využít jako palivo pro výrobu energie. Jako vedlejší produkt spalování a zplyňování biomasy však vzniká velké množství dehtu. Dehet je tvořen rozmanitou sm...

  12. Pokročilá analýza spontánních mluvených dialogů

    OpenAIRE

    Musil, David

    2014-01-01

    První částí této semestrální práce jsou základní informace o call centrech. Kapitola se zaměřuje na vznik a historii call center a základnímu rozdělení softwaru v nich používaného. Druhá kapitola se zabývá způsoby zpracování řeči a metodami pro hodnocení kvality služeb. Další kapitola poskytuje popis základních příznaků dialogu jako reakce, váhání a přerušení. Následující kapitoly obsahují návrh a popis grafického prostředí v programovacím jazyce Matlab pro extrakci již zmíněných základních p...

  13. Technology and Properties PMN-PT-PS-PFN:LI Material for Multilayer Capacitor

    Directory of Open Access Journals (Sweden)

    Niemiec P.

    2013-12-01

    Full Text Available W pracy zaprojektowano i otrzymano wieloskładnikowy materiał o wzorze 0.6075PMN-0.2025PT-0.09PS-0.1PFN:Li (PMN-PT-PS-PFN:Li dla zastosowań na podłoża do wielowarstwowych kondensatorów MLCC. Otrzymywanie materiału PMN-PT-PS-PFN:Li było prowadzone dwiema metodami syntetyzowania. W pierwszej metodzie do otrzymania PMN-PT-PS- PFN:Li zastosowano syntetyzowanie prostych związków (tlenki, węglany, w drugiej metodzie zastosowano syntetyzowanie złożonych związków (MgNb2O6, i FeNbO4 oraz prostych związków (tlenków PbO. Ti O: i węglanu U2CO3. Z syntetyzowanego proszku materiału PMN-PT-PS-PFN:Li otrzymano ceramiczne próbki które zostały poddane kom- pleksowym badaniom. Przeprowadzono badania rentgenowskie, mikrostrukturalne oraz ferroelektrycznych, dielektrycznych i sprężystych właściwości.

  14. Rimbaud i historia przestrzenna

    Directory of Open Access Journals (Sweden)

    Kristin Ross

    2017-03-01

    Full Text Available Artykuł stanowi zmodyfikowany fragment książki Kristin Ross poświęconej Komunie Paryskiej i Rimbaudowi. Autorka rozwija w nim trzy równoległe opowieści o konfliktach organizujących ówczesną literaturę, politykę i rozwijającą się pod koniec XIX wieku naukową geografię. Choć realizowany różnymi metodami, cel tych walk miałby być jednakowy i dotyczyć sposobu konstruowania przestrzeni. Jak przekonuje bowiem Ross, ideologiczne pojęcie przestrzeni (zgodnie z którym biernie oczekuje ona na podbój zostaje wypracowane wspólnymi siłami przez antykomunardzkich polityków, elitarystycznych poetów parnasistowskich oraz ojców francuskiej akademickiej geografii. Rimbaud zaś (wespół z takimi radykałami jak Vermersch i Reclus szkicował w swoich pracach taką koncepcję przestrzeni, w której nie będzie już miejsca na podbój, hierarchię czy charakterystyczne dla kapitalistycznego kolonializmu całkowite ujednolicenie rzeczywistości.

  15. Modern trends of using ceramic cores for aerospace and IGT sector

    OpenAIRE

    Karafa, Pavel

    2014-01-01

    Bakalářská práce pojednává o výrobním procesu a aplikacích keramických jader pro použití ve slévárnách přesného lití. Tato keramická jádra nalézají použití ve velké míře v leteckém a energetickém průmyslu pro výrobu lopatek turbín, či někdy také pro vytvoření dutin u odlitků, jež nelze jinými metodami vytvořit. Samostatná úloha keramických jader popisovaných v práci spočívá ve vytvoření chladících kanálků uvnitř těla lopatky pro zdokonalení pracovního chodu turbíny. Práce v úvodu stručně popi...

  16. Porovnání navařování svazkem elektronů a plazmou

    OpenAIRE

    2014-01-01

    Tato diplomová práce se zabývá metodami navařování plazmou a svazkem elektronů. V teoretické části rozdělené na několik kapitol se zaměřuje na popis těchto metod navařování. V praktické části je popsán konkrétní experiment navařování svazkem elektronů (EBC) a navařování plazmou (PC). Na závěr byly vyhodnoceny výsledky, porovnány obě zmíněné metody a bylo popsáno možné využití pro průmyslovou praxi. This diploma thesis deals with plasma cladding and electron beam cladding. The theoretical p...

  17. Where microorganisms meet rocks in the Earth's Critical Zone

    Directory of Open Access Journals (Sweden)

    D. M. Akob

    2011-12-01

    Full Text Available The Critical Zone (CZ is the Earth's outer shell where all the fundamental physical, chemical, and biological processes critical for sustaining life occur and interact. As microbes in the CZ drive many of these biogeochemical cycles, understanding their impact on life-sustaining processes starts with an understanding of their biodiversity. In this review, we summarize the factors controlling where terrestrial CZ microbes (prokaryotes and micro-eukaryotes live and what is known about their diversity and function. Microbes are found throughout the CZ, down to 5 km below the surface, but their functional roles change with depth due to habitat complexity, e.g. variability in pore spaces, water, oxygen, and nutrients. Abundances of prokaryotes and micro-eukaryotes decrease from 1010 or 107 cells g soil−1 or rock−1, or ml water−1 by up to eight orders of magnitude with depth. Although symbiotic mycorrhizal fungi and free-living decomposers have been studied extensively in soil habitats, where they occur up to 103 cells g soil−1, little is known regarding their identity or impact on weathering in the deep subsurface. The relatively low abundance of micro-eukaryotes in the deep subsurface suggests that they are limited in space, nutrients, are unable to cope with oxygen limitations, or some combination thereof. Since deep regions of the CZ have limited access to recent photosynthesis-derived carbon, microbes there depend on deposited organic material or a chemolithoautotrophic metabolism that allows for a complete food chain, independent from the surface, although limited energy flux means cell growth may take tens to thousands of years. Microbes are found in all regions of the CZ and can mediate important biogeochemical processes, but more work is needed to understand how microbial populations influence the links between different regions of the CZ and weathering

  18. Dicty_cDB: SHF291 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available ac53e10.g1 Strongyloides ratti whole genome shotgun library(SRAAGSS 004) Strongyloides ratti genomic, genomic survey...ratti whole genome shotgun library (SRAAGSS 004) Strongyloides ratti genomic, genomic survey sequence. 34 0....rongyloides ratti genomic, genomic survey sequence. 34 0.51 3 CZ536483 |CZ536483....1 SRAA-aad03e04.g1 Strongyloides ratti whole genome shotgun library (SRAAGSS 004) Strongyloides ratti genomic, genomic survey... shotgun library (SRAAGSS 004) Strongyloides ratti genomic, genomic survey sequen

  19. Dicty_cDB: SHG429 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available sequence. 42 2.5 1 DX204628 |DX204628.1 OR_ABa0074P22.f OR_ABa Oryza ridleyi genomic clone OR_ABa0074P22 5', genomic survey...e OC__Ba0165O17 5', genomic survey sequence. 42 2.5 1 CZ764028 |CZ764028.1 OC__Ba0118L24.f OC__Ba Oryza coar...ctata genomic clone OC__Ba0118L24 5', genomic survey sequence. 42 2.5 1 AC160147

  20. Dyskurs edukacyjny w nauczaniu języka angielskiego dzieci przedszkolnych: studium etnograficzne

    OpenAIRE

    2011-01-01

    Wydział Neofilologii: Instytut Filologii Angielskiej Rozprawa doktorska dotyczy dyskursu edukacyjnego w nauczaniu języka angielskiego dzieci w wieku przedszkolnym i składa się z sześciu rozdziałów. Trzy pierwsze rozdziały mają charakter teoretyczny, dwa kolejne stanowią część empiryczną pracy. Ostatni rozdział zawiera wnioski z przeprowadzonych przez autorkę rozprawy badań oraz implikacje dla dydaktyki języka obcego na poziomie przedszkolnym oraz wczesnoszkolnym. W części teoretycznej pra...

  1. Effect of attention division on movement detection and execution in dual-task conditions

    DEFF Research Database (Denmark)

    Aliakbaryhosseinabadi, Susan; Kamavuako, Ernest Nlandu; Farina, Dario

    2017-01-01

    -invasive electroencephalographic (EEG). Participants were asked to perform a series of cue-based ankle dorsiflexions as the primary task (single task level). In some experimental runs, in addition to the primary task they concurrently attended an auditory oddball paradigm consisting of three tones while they were asked to count...... the number of sequences of special tones (dual task level). EEG signals were recorded from nine channels centered on Cz. Analysis of event-related potential (ERP) signals from Cz confirmed that the oddball task decreased the attention to the ankle dorsiflexion significantly. Furthermore, movement...

  2. Developing a Paradigm to Measure and Model the Form and Function of the Critical Zone

    Science.gov (United States)

    Brantley, S. L.

    2014-12-01

    The Critical Zone (CZ) includes all chemical, physical, and biological processes in our environment. As humans change the CZ, it becomes more important for us to understand how the CZ will respond. The problem with understanding the CZ is that so many different processes are tightly coupled and exhibit threshold behaviors. We therefore have difficulty creating models that accurately describe CZ evolution. CZ science targets the development of models to understand these processes. To parameterize the models requires CZ characterization and observatories to measure fluxes of water, energy, solutes, and sediments (WESS). WESS fluxes can then, in turn, be compared to the time-integrated histories of those fluxes that are recorded in soil profiles, sediment deposits, and rocks. By using scenarios of human behavior along with models to cross timescales from minutes to millenia, we will learn to forecast the impacts of anthropogenic activity. In the Susquehanna Shale Hills Critical Zone Observatory, a large team of researchers are developing a suite of models to simulate CZ processes over a range of timescales. At the same time, this team is moving from a paradigm of "measure everything everywhere" to "measure only what we need" as we scale up from the 0.1 km2 watershed at Shale Hills to the 165 km2 Shavers creek watershed. At Shale Hills, we made densely spaced measurements. In the Shavers creek watershed, we are targetting catenas in sub-catchments of the watershed as well as measurements of the main-branch streams. Sub-catchments were chosen to explore the different lithologies and land use characteristics. Instrumentation is already deployed in one first-order sub-catchment located on Tuscarora sandstone. The next sub-catchment to be instrumented, like Shale Hills, will be located on shale bedrock. Unlike Shale Hills, however, the sub-catchment will host agricultural activity. We are targetting our intensive chemical, physical, and biological measurements on catenas

  3. Hidden Grassmann structure in the XXZ model

    CERN Document Server

    Boos, H; Miwa, T; Smirnov, F A; Takeyama, Y

    2006-01-01

    For the critical XXZ model, we consider the space W of operators which are products of local operators with a disorder operator. We introduce two anti-commutative family of operators b(z), c(z) which act on the space W. These operators are constructed as traces over representations of the q-oscillator algebra, in close analogy with Baxter's Q-operators. We show that the vacuum expectation values of operators in W can be expressed in terms of an exponential of a quadratic form of b(z), c(z).

  4. Využití segmentace v rámci on-line prodeje vybrané CA

    OpenAIRE

    JUHAŇÁKOVÁ, Veronika

    2010-01-01

    The aim of this thesis is to analyze the online sales of the travel agency New Travel.cz for the past year 2010 and then use the particular results of the analysis and find out and characterize the major market segments of this company. The travel agency gets through the market segmentation better general view of it's customers and consumer's behavior and comapny can effectively focusing their marketing activities. This analysis can be regarded as pilot project of the New Travel.cz., therefor...

  5. Research on Synthesis and Luminous Mechanism of a Soluble Blue-Light Luminescence Material Derived from Carbazole%一种基于咔唑的可溶性蓝光发光材料的合成与发光机理研究

    Institute of Scientific and Technical Information of China (English)

    李娟; 王华; 宋春丽; 张存; 张俊萍; 郝玉英; 许并社

    2011-01-01

    通过SN1亲核反应机理及SUZUKI偶联反应,设计并合成了一种含有咔唑及8-苄氧基喹啉基团的有机蓝光发光材料,即N-[6-(8-苄氧基喹啉基)-己基]咔唑(CzBQ).通过紫外-可见吸收光谱和荧光光谱等测试方法对其结构及光物理性能等进行了表征.研究结果表明:CzBQ为一种蓝光有机发光材料,其光学带隙为3.02 eV,在乙醇溶液中的发射峰波长为410 nm;CzBQ具有优良的溶解性和成膜性,适用于湿法制备蓝光有机电致发光器件.%In the present paper, a kind of blue light-emitting organic small molecule luminescent materials was designed and synthesized, which is composed of carbazole and 8-benzyloxyquinoline functional groups. Alkyl chain can effectively play the role of electron transfer barrier. The synthesis principle was on the basis of the mechanisms of Snlnucleophilic reaction and SUZUKI coupling reaction mechanisms. It is entitled N-[6-(8-benzylquinoline)-hexyl] carbazole(CzBQ). Its molecular structure was simulated and optimized by Gaussian03. Its chemical structure was identified by measurements of ultraviolet-visible spectra and H1 NMR spectra. It photo physical property was characterized by method of fluorescence spectra, t is indicated that CzBQ was a kind of blue-light luminescence material and its optical band gap is 3. 02 eV. Ethanol solution of CzBQ exhibits the maximal emission peak at 410 nm in photoluminescence spectra. In the luminescence process of CzBQ, carbazole groups and 8-benzylquin-oline groups were separately involved in excitation and light emission. This kind of blue-light luminescence material possesses excellent solubility, It can be dissolved in different solvents such as ethanol and ethyl acetate and dichloromethane. The test results of AFM show that CzBQ was provided with very good film formability. It is expected to be utilized in blue-light organic light-emitting device fabricated by wet method such as spin-coding method and screen

  6. CAE技术在井架设计中的应用%CAE Technology in the Design of the Mast

    Institute of Scientific and Technical Information of China (English)

    张明亮

    2014-01-01

    对 CAE 技术在井架设计中的应用进行深入分析,探究 ZJ30/1700CZ 钻机井架在有钩载情况、自然状态下的模态和静态,为井架的合理设计提供参考。%CAE technology in the design of the derrick-depth analysis, explore ZJ30/1700CZ rig derrick hook load in case there is, modal and static natural state, provide a reference for the rational design of the derrick.

  7. Missile Aerodynamic Parameter and Structure Identification from Flight Test Data

    Science.gov (United States)

    1977-11-01

    MODEL AEhODYNAMIC MATHEMATICAL MODELo |.rrtrr . x Body Force AQC y Body Forco A0(CyR + Cy6 rAr) I "Body Force AQ(Cz ax + Cz6,6q) Moment About x 0 MOment...TIME isec) (g’) FLTEE RESDUAL, a (h) FILTER RESIDUAL, w I I 0.4 A5 l I I t theI ISI I I II II I’ W 1 I &I - -_ __-+I 171 -0.06 •l-’ l • , -,I.o ’- "r

  8. Orientacje socjo-biograficzne młodych Polek na podstawie ich wyborów życiowych dokonanych i deklarowanych

    OpenAIRE

    Czarnota, Wanda

    2014-01-01

    Wanda Czarnota Rozprawa doktorska „Orientacje socjo-biograficzne młodych Polek na podstawie ich wyborów życiowych dokonanych i deklarowanych” Rozprawa składa się z dziewięciu rozdziałów rozmieszczonych w czterech częściach. Część I jest wprowadzeniem do problematyki badań. Rozdział pierwszy dotyczy kategorii „kobieta” – „kobiecość” i zawiera przegląd wybranych fragmentów koncepcji antropologicznych, filozoficznych, psychologicznych i socjologicznych na temat podmiotu „kobieta/kobie...

  9. Rozwój sumienia u dzieci w wieku 10 – 12 lat

    OpenAIRE

    Czarnota, Ilona

    2016-01-01

    Wydział Studiów Edukacyjnych Praca stanowi teoretyczno – empiryczne studium na temat rozwoju sumienia dzieci w okresie późnego dzieciństwa. W części teoretycznej przedstawiono koncepcje sumienia powstałe na gruncie różnych nauk. Ukazano koncepcje rozwoju moralnego J. Piageta, L. Kohlberga, H. Muszyńskiego, M.L. Hoffmana. Scharakteryzowano wyrzuty sumienia, zachowania moralne, empatię oraz mechanizmy działania sumienia oparte na zinternalizowanych normach. W części empirycznej zostały przed...

  10. A 532 nm Chaotic Fiber Laser Transmitter for Underwater Lidar

    Science.gov (United States)

    2013-04-23

    scattered light, the received power is Prx = Ptxe −cz (2.1) where Ptx is the transmitted power, a is the absorption coefficient, b is the scat- 9 Figure...receiver does see a fraction k of the scattered light, the simple modification Prx = Ptxe −(a+b(1−k))z (2.2) gives the correct power [27]. However...attenuation coefficients c are between 0.5 and 2.5 m−1. At c = 2.0 m−1, 5 m represents 10 attenuation lengths (here L = cz), so the received power Prx

  11. Measurement for titanium density distribution on Ti:sapphire rods for high intensity pump source

    Energy Technology Data Exchange (ETDEWEB)

    Usami, Tsutomu; Nishimura, Akihiko; Sugiyama, Akira [Japan Atomic Energy Research Inst., Kizu, Kyoto (Japan). Kansai Research Establishment

    2001-10-01

    A Ti:sapphire rod of 190 mm length made by Czochralski (CZ) technique was used in the flashlamp pumped high intensity laser for Yb:glass chirped pulse amplification. In the absorption spectroscopy of the rod immersed in an index matching liquid of methylene iodide, heterogeneous Ti{sup 3+} density distribution was measured along the direction of length. It has been first clarified that the Ti:sapphire rod grown by the CZ technique has 20% difference of the Ti{sup 3+} density at the both ends. (author)

  12. Biogeneza małych RNA powstających z prekursorów wybranych mikro RNA Arabidopsis thaliana

    OpenAIRE

    Sobkowiak, Łukasz

    2012-01-01

    Wydział Biologii: Instytut Biologii Molekularnej i Biotechnologii W trakcie realizacji niniejszej rozprawy doktorskiej dokonano charakterystyki sekwencji nukleotydowych 14 HYL1-zależnych prekursorów miRNA Arabidopsis thaliana Col-0. Poznanie sekwencji nukleotydowych cząsteczek pri-miRNA i ich mapowanie do sekwencji genomowej A. thaliana pozwoliło poznać budowę 14 genów MIR. Charakterystykę sekwencji nukleotydowych cząsteczek pri-miRNA wykonano w oparciu o techniki 5'RACE oraz 3'...

  13. Geometry of guanidinium groups in arginines.

    Science.gov (United States)

    Malinska, Maura; Dauter, Miroslawa; Dauter, Zbigniew

    2016-09-01

    The restraints in common usage today have been obtained based on small molecule X-ray crystal structures available 25 years ago and recent reports have shown that the values of bond lengths and valence angles can be, in fact, significantly different from those stored in libraries, for example for the peptide bond or the histidine ring geometry. We showed that almost 50% of outliers found in protein validation reports released in the Protein Data Bank on 23 March 2016 come from geometry of guanidine groups in arginines. Therefore, structures of small molecules and atomic resolution protein crystal structures have been used to derive new target values for the geometry of this group. The most significant difference was found for NE-CZ-NH1 and NE-CZ-NH2 angles, showing that the guanidinium group is not symmetric. The NE-CZ-NH1 angle is larger, 121.5(10)˚, than NE-CZ-NH2, 119.2(10)˚, due to the repulsive interaction between NH1 and CD1 atom.

  14. Clozapine-carboxylic acid plasticized co-amorphous dispersions: Preparation, characterization and solution stability evaluation

    Directory of Open Access Journals (Sweden)

    Ali Ahmed Mahmoud Abdelhaleem

    2015-06-01

    Full Text Available This study addressed the possibility of forming of co-amorphous systems between clozapine (CZ and various carboxylic acid plasticizers (CAPs. The aim was to improve the solubility and oral bioavailability of clozapine. Co-amorphous dispersions were prepared using modified solvent evaporation methodology at drug/plasticizer stoichiometric ratios of 1:1, 1:1.5 and 1:2. Solid state characterization was performed using differential scanning calorimetry, X-ray diffraction and infra red spectroscopy. Highly soluble homogeneous co-amorphous dispersions were formed between clozapine and CAPs via hydrogen bonding. The co-amorphous dispersions formed with tartaric acid (1:2 showed the highest dissolution percentage (> 95 % in 20 minutes compared to pure crystalline CZ (56 %. Highly stable solutions were obtained from co-amorphous CZ-citric and CZ-tartaric acid at 1:1.5 molar ratio. The prepared dispersions suggest the possibility of peroral or sublingual administration of highly soluble clozapine at a reduced dose with the great chance to bypass the first pass metabolism.

  15. Status Evaluation of Loose of Jig Bed Based on Fuzzy Inference System

    Institute of Scientific and Technical Information of China (English)

    CHENG Jian; GUO Yi-nan; SUN Wei; MU Jun-ying

    2003-01-01

    This paper mainly describes that loose of jig bed affects jig's separation effect, and the corresponding fuzzy rules were built. Using the evaluating index of jig's separation effect--imperfection (I) and total misplaced material (Cz), it evaluates status of loose of jig bed by fuzzy inference system. Experimental simulation and applications in practice prove the method's feasibility.

  16. THE PUPPIS CLUSTER OF GALAXIES BEHING THE GALACTIC PLANE AND THE ORIGIN OF THE LOCAL ANOMALY

    NARCIS (Netherlands)

    LAHAV, O; YAMADA, T; SCHARF, C; KRAANKORTEWEG, RC

    1993-01-01

    Recent surveys of galaxies behind the Galactic plane have revealed the Puppis cluster, centred at l approximately 240-degrees, b approximately 0-degrees and redshift cz approximately 1000-2000 km s-1. We supplement the recent 2-Jy IRAS redshift survey of Strauss et al. for absolute value of b >

  17. Countdown

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Beijing Review photographer Wang Xiang attended the launch of the Tiangong-1 unmanned space lab module.Left:The module prepared for launch Bottom (left to right):A medical unit in attendance,and fuelling preparations Below:The Long March CZ-2F rocket that will carry the

  18. Genesis Solar Wind Collector Cleaning Assessment: 60366 Sample Case Study

    Science.gov (United States)

    Goreva, Y. S.; Gonzalez, C. P.; Kuhlman, K. R.; Burnett, D. S.; Woolum, D.; Jurewicz, A. J.; Allton, J. H.; Rodriguez, M. C.; Burkett, P. J.

    2014-01-01

    In order to recognize, localize, characterize and remove particle and thin film surface contamination, a small subset of Genesis mission collector fragments are being subjected to extensive study via various techniques [1-5]. Here we present preliminary results for sample 60336, a Czochralski silicon (Si-CZ) based wafer from the bulk array (B/C).

  19. Identification (ID) Cards for Members of the Uniformed Services, Their Dependents, and Other Eligible Individuals

    Science.gov (United States)

    1992-12-30

    Colombia CO Comoros CN Congo CF Cook Islands CW Coral Sea Islands CR Costa Rica CS Cuba CU Cyprus CY Czechoslovakia CZ Denmark DA Djibouti DJ Dominica DO...Grenadines VC San Marino SM Sao Tome and Principe TP Saudi Arabia SA Senegal SG Seychelles SE Sierra Leone SL Singapore SN Solomon Islands BP Somalia

  20. Dicty_cDB: VFL110 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available PTE MVENATSKLDEMIMEYHNTSPTSSPTNTRKSITPVQQQQ--- ---ttnsttnsttnsttnsttttttnstn*sssknd***n**nwinddirtkhiitklds ...... 56 0.003 1 ( AC116979 ) Dictyostelium discoideum chromosome 2 map 6445720... 32 0.010 15 ( AC117070 ) Di...ctyostelium discoideum chromosome 2 map 2097701... 36 0.012 10 ( CZ964675 ) 16308

  1. Czochralski crystal growth: Modeling study

    Science.gov (United States)

    Dudukovic, M. P.; Ramachandran, P. A.; Srivastava, R. K.; Dorsey, D.

    1986-01-01

    The modeling study of Czochralski (Cz) crystal growth is reported. The approach was to relate in a quantitative manner, using models based on first priniciples, crystal quality to operating conditions and geometric variables. The finite element method is used for all calculations.

  2. निमो: क्लाउन फ़िश

    Digital Repository Service at National Institute of Oceanography (India)

    Pawar, H.B.; Sanaye, S.V.; Sreepada, R.A

    ’$e E VZw EM. ~r. ndma E Eg. dr. gZ¶o E Ama. E. lrnX ’$mBª[S>J {Z‘mo Zm‘H$ {’$ë‘ Zo bmoJm| H$mo ŠbmCZ {µ’$e Ho$ ~mao ‘| OmZZo Ho$ {b`o CËgwH$ ~Zm {X`m Am¡a Bgr Ho$ gmW ŠbmCZ {µ’$e go Ow‹S>o VÏ` IwbH$a gm‘Zo Am`o h¢ & `h bo...I ŠbmCZ {µ’$e gå~pÝYV OmZH$mar àmá H$aZo ‘| AmnH$s ghm`Vm H$aoJm & ŠbmCZ {µ’$e g‘wÐ ‘|o nmB© OmVr h¡ Am¡a BgH$s bJ^J 30 {d{^Þ àOm{V`m± kmV h¢ & `h ‘N>br {XIZo ‘| nrbo VWm bmb a§J go boH$a Zma§Jr a§J H$s hmoVr h¢ {Og na gµ’$oX Ym[a`m± hmoVr h¢ & `h...

  3. 75 FR 80112 - Designation of Three Individuals and Seven Entities Pursuant to Executive Order 13224

    Science.gov (United States)

    2010-12-21

    ....k.a. GOLFRATE AFRICA; a.k.a. GOLFRATE DISTRIBUTION; a.k.a. GOLFRATE FOOD INDUSTRIES; a.k.a. GOLFRATE... Muhsin), Avenida Jose Maria de Brito 929, Centro,, Foz Do Iguacu, Parana State, Brazil; DOB 7 Jan 1967; Identification Number 77688048 (Brazil); Passport CZ74340 (Brazil); alt. Passport 0083628 (Lebanon);...

  4. Pd-Modified Cu–Zn Catalysts for Methanol Synthesis from CO2/H2 Mixtures : Catalytic Structures and Performance

    NARCIS (Netherlands)

    Fierro, J.L.G.; López Granados, M.; Melián-Cabrera, I.

    2002-01-01

    The effect of palladium incorporation on the performance of a CuO–ZnO catalyst for methanol synthesis by hydrogenation of carbon dioxide is studied. Three different catalysts are prepared: the reference CuO-ZnO (CZ), and two Pd-based CuO–ZnO catalysts, PCZ-CP and PCZ-SP, which are prepared by co-pre

  5. Parallel Algorithm for Wireless Data Compression and Encryption

    Directory of Open Access Journals (Sweden)

    Qin Jiancheng

    2017-01-01

    Full Text Available As the wireless network has limited bandwidth and insecure shared media, the data compression and encryption are very useful for the broadcasting transportation of big data in IoT (Internet of Things. However, the traditional techniques of compression and encryption are neither competent nor efficient. In order to solve this problem, this paper presents a combined parallel algorithm named “CZ algorithm” which can compress and encrypt the big data efficiently. CZ algorithm uses a parallel pipeline, mixes the coding of compression and encryption, and supports the data window up to 1 TB (or larger. Moreover, CZ algorithm can encrypt the big data as a chaotic cryptosystem which will not decrease the compression speed. Meanwhile, a shareware named “ComZip” is developed based on CZ algorithm. The experiment results show that ComZip in 64 b system can get better compression ratio than WinRAR and 7-zip, and it can be faster than 7-zip in the big data compression. In addition, ComZip encrypts the big data without extra consumption of computing resources.

  6. Extended Subadiabatic Layer in Simulations of Overshooting Convection

    Science.gov (United States)

    Käpylä, Petri J.; Rheinhardt, Matthias; Brandenburg, Axel; Arlt, Rainer; Käpylä, Maarit J.; Lagg, Andreas; Olspert, Nigul; Warnecke, Jörn

    2017-08-01

    We present numerical simulations of hydrodynamic overshooting convection in local Cartesian domains. We find that a substantial fraction of the lower part of the convection zone (CZ) is stably stratified according to the Schwarzschild criterion while the enthalpy flux is outward directed. This occurs when the heat conduction profile at the bottom of the CZ is smoothly varying, based either on a Kramers-like opacity prescription as a function of temperature and density or a static profile of a similar shape. We show that the subadiabatic layer arises due to nonlocal energy transport by buoyantly driven downflows in the upper parts of the CZ. Analysis of the force balance of the upflows and downflows confirms that convection is driven by cooling at the surface. We find that the commonly used prescription for the convective enthalpy flux being proportional to the negative entropy gradient does not hold in the stably stratified layers where the flux is positive. We demonstrate the existence of a non-gradient contribution to the enthalpy flux, which is estimated to be important throughout the convective layer. A quantitative analysis of downflows indicates a transition from a tree-like structure where smaller downdrafts merge into larger ones in the upper parts to a structure in the deeper parts where a height-independent number of strong downdrafts persist. This change of flow topology occurs when a substantial subadiabatic layer is present in the lower part of the CZ.

  7. Navy Commercial Access Control System Did Not Effectively Mitigate Access Control Risks

    Science.gov (United States)

    2013-09-16

    the capability to perform NCIC checks to vet contractor employees, and not all Navy installations nave the ability to access NCIC, NCACS is not...Management Corp 10,017 REA to contract N40085-06-D-1260 Goodwill Industries 199,148 Overhead charge to contract N00189-09- C-Z003 DynCorp international

  8. Spread of the invasive ladybird Harmonia axyridis in the Czech Republic and Denmark

    DEFF Research Database (Denmark)

    Nedved, Oldrich; Steenberg, Tove; Harding, Susanne

    Faculty of Agricultural Sciences, University OF Aarhus, Skovbrynet 14, DK-2800 Kgs. Lyngby, Denmark 4 Faculty of Life Sciences, University of Copenhagen, Bülowsvej 13, DK - 1870 Frederiksberg C, Denmark nedved@prf.jcu.cz Introduction: Harmonia axyridis (Coleoptera: Coccinellidae) is an invasive alien...

  9. The effects of fast neutron irradiation on oxygen in Czochralski silicon

    Institute of Scientific and Technical Information of China (English)

    Chen Gui-Feng; Yan Wen-Bo; Chen Hong-Jian; Li Xing-Hua; Li Yang-Xian

    2009-01-01

    The effects of fast neutron irradiation on oxygen atoms in Czochralski silicon (CZ-Si) are investigated systemically by using Fourier transform infrared (FTIR) spectrometer and positron annihilation technique (PAT). Through isochronal annealing, it is found that the trend of variation in interstitial oxygen concentration ([Oi]) in fast neutrons irradiated CZ-Si fluctuates largely with temperature increasing, especially between 500 and 700℃. After the CZ-Si is annealed at 600℃, the V4 appearing as three-dimensional vacancy clusters causes the formation of the molecule-like oxygen clusters, and more importantly these dimers with small binding energies (0.1-1.0eV) can diffuse into the Si lattices more easily than single oxygen atoms, thereby leading to the strong oxygen agglomerations. When the CZ-Si is annealed at temperature increasing up to 700℃, three-dimensional vacancy clusters disappear and the oxygen agglomerations decompose into single oxygen atoms (O) at interstitial sites. Results from FTIR spectrometer and PAT provide an insight into the nature of the [Oi] at temperatures between 500 and 700℃. It turns out that the large fluctuation of [Oi] after short-time annealing from 500 to 700℃ results from the transformation of fast neutron irradiation defects.

  10. China Report Science and Technology No. 196

    Science.gov (United States)

    2007-11-02

    institute made improvements this year and developed a new model , the A C-Z80 single-board computer. Its internal memory capacity was increased...due to not using mercury thyratrons ,the pro- duct value increased 37»3 percent and the profit increased 32.6 percent. The pro- duction quota of

  11. Effect of the ratio of zinc amino acid complex to zinc sulfate on the performance of Holstein cows

    National Research Council Canada - National Science Library

    Nayeri, A; Upah, N C; Sucu, E; Sanz-Fernandez, M V; DeFrain, J M; Gorden, P J; Baumgard, L H

    2014-01-01

    Multiparous (n=70) and primiparous (n=66) Holstein cows were balanced by 305-d previous mature-equivalent milk yield and parity and assigned to 1 of 3 dietary treatments to evaluate the ratio of zinc sulfate to zinc amino acid complex (CZ...

  12. Ceria-Zirconia Nanoparticles as an Enhanced Multi-Antioxidant for Sepsis Treatment.

    Science.gov (United States)

    Soh, Min; Kang, Dong-Wan; Jeong, Han-Gil; Kim, Dokyoon; Kim, Do Yeon; Yang, Wookjin; Song, Changyeong; Baik, Seungmin; Choi, In-Young; Ki, Seul-Ki; Kwon, Hyek Jin; Kim, Taeho; Kim, Chi Kyung; Lee, Seung-Hoon; Hyeon, Taeghwan

    2017-09-11

    The two oxidation states of ceria nanoparticles, Ce(3+) and Ce(4+) , play a pivotal role in scavenging reactive oxygen species (ROS). In particular, Ce(3+) is largely responsible for removing O2(-) and (.) OH that are associated with inflammatory response and cell death. The synthesis is reported of 2 nm ceria-zirconia nanoparticles (CZ NPs) that possess a higher Ce(3+) /Ce(4+) ratio and faster conversion from Ce(4+) to Ce(3+) than those exhibited by ceria nanoparticles. The obtained Ce0.7 Zr0.3 O2 (7CZ) NPs greatly improve ROS scavenging performance, thus regulating inflammatory cells in a very low dose. Moreover, 7CZ NPs are demonstrated to be effective in reducing mortality and systemic inflammation in two representative sepsis models. These findings suggest that 7CZ NPs have the potential as a therapeutic nanomedicine for treating ROS-related inflammatory diseases. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  13. Towards an Integrated Approach to Cabin Service English Curriculum Design: A Case Study of China Southern Airlines' Cabin Service English Training Course

    Science.gov (United States)

    Xiaoqin, Liu; Wenzhong, Zhu

    2016-01-01

    This paper has reviewed the history of EOP (training) development and then illustrated the curriculum design of cabin service English training from the three perspectives of ESP, CLIL and Business Discourse. It takes the cabin crew English training of China Southern Airlines (CZ) as the case and puts forward an operational framework composed of…

  14. Knowledge, Attitude and Practice of Family Planning

    African Journals Online (AJOL)

    Knowledge and approval of family planning was high, 81.7% and 86.2% respectiveljï, but the practice of ... the regional average of 2.8"/cz.1 The effects of .... Method Number Perccntage .... In fact some people have pictured family planning.

  15. Using RNA Interference to Reveal Genetic Vulnerabilities in Human Cancer Cells

    Science.gov (United States)

    2005-07-01

    Luo, B., Heard, A.D. & Lodish , H.F. Small interfering RNA production by enzymatic engineering of DNA (SPEED). Proc Natl Acad Sci U S A 101, 5494-9...suppressors identifies REST. Cell 121, 837-48 (2005). 44. Chen, C.Z., Li, L., Lodish , H.F. & Bartel, D.P. MicroRNAs modulate hematopoietic lineage

  16. Oxalate co-precipitation synthesis of calcium zirconate and calcium titanate powders.

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez-Sanchez, Bernadette A.; Tuttle, Bruce Andrew

    2009-06-01

    Fine powders of calcium zirconate (CaZrO{sub 3}, CZ) and calcium titanate (CaTiO{sub 3}, CT) were synthesized using a nonaqueous oxalate co-precipitation route from Ca(NO{sub 3}){sub 2}{center_dot}4 H{sub 2}O and group(IV) n-butoxides (Ti(OBu{sup n}){sub 4} or Zr(OBu{sup n}){sub 4}). Several reaction conditions and batch sizes (2-35 g) were explored to determine their influence on final particle size, morphology, and phase. Characterization of the as-prepared oxalate precursors, oven dried oxalate precursors (60-90 C), and calcined powders (635-900 C) were analyzed with TGA/DTA, XRD, TEM, and SEM. Densification and sintering studies on pressed CZ pellets at 1375 and 1400 C were also performed. Through the developed oxalate co-precipitation route, densification temperatures for CZ were lowered by 125 C from the 1500 C firing temperature required for conventional mixed oxide powders. Low field electrical tests of the CZ pellets indicated excellent dielectric properties with dielectric constants of {approx}30 and a dissipation factor of 0.0004 were measured at 1 kHz.

  17. WetVegEurope

    NARCIS (Netherlands)

    Landucci, Flavia; Řezníčková, Marcela; Šumberová, Kateřina; Hennekens, S.M.; Schaminée, J.H.J.

    2015-01-01

    WetVegEurope is a research project (http://www.sci.muni.cz/botany/vegsci/wetveg) whose goal is to provide a synthesized formalized classification of the aquatic and marsh vegetation across Europe at the level of phytosociological associations. In order to achieve the project objective, a WetVegEu

  18. Eletrencefalografia quantitativa no transtorno obsessivo-compulsivo: resultados preliminares

    Directory of Open Access Journals (Sweden)

    FONTENELLE LEONARDO

    2000-01-01

    Full Text Available Investigamos o valor preditivo de variáveis da eletrencefalografia quantitativa (EEGq sobre a resposta ao tratamento farmacológico do transtorno obsessivo-compulsivo (TOC. Foram estudados 10 pacientes com TOC, segundo critérios da DSM-IV, inicialmente não medicados. As seguintes variáveis eletrencefalográficas foram selecionadas: potência relativa bipolar na faixa alfa para os eletrodos Cz-C3, Cz-C4, T3-T5, T4-T6, T3-F7 e T4-F8, potência relativa bipolar na faixa teta para os eletrodos Cz-C3, Cz-C4, T3-T5, T4-T6, T3-F7 e T4-F8 e potência relativa monopolar na faixa teta para os eletrodos Fp1, Fp2, F7, F3, Fz, F4 e F8. Dos 10 pacientes examinados, 5 apresentaram desvios estatisticamente significativos da potência relativa bipolar na faixa alfa em regiões centrais, quando comparados com o banco normativo de dados (grupo controle. Os demais não apresentaram desvios com significado estatístico. O grupo de pacientes com alterações eletrencefalográficas se caracterizou por idade de início do TOC significativamente mais precoce e pior resposta ao tratamento com inibidores da recaptação da serotonina.

  19. Genetics Home Reference: Partington syndrome

    Science.gov (United States)

    ... on PubMed Sherr EH. The ARX story (epilepsy, mental retardation, autism, and cerebral malformations): one gene leads to many phenotypes. Curr Opin Pediatr. 2003 Dec;15(6):567-71. Review. Citation on PubMed Shoubridge C, Fullston T, Gécz ...

  20. A review of high-efficiency silicon solar cells

    Science.gov (United States)

    Rohatgi, A.

    1986-01-01

    Various parameters that affect solar cell efficiency were discussed. It is not understood why solar cells produced from less expensive Czochralski (Cz) silicon are less efficient than cells fabricated from more expensive float-zone (Fz) silicon. Performance characteristics were presented for recently produced, high-efficient solar cells fabricated by Westinghouse Electric Corp., Spire Corp., University of New South Wales, and Stanford University.

  1. PROTEOMIC ANALYSIS OPTIMIZATION: SELECTIVE PROTEIN SAMPLE ON-COLUMN RETENTION IN REVERSE-PHASE LIQUID CHROMATOGRAPHY

    Science.gov (United States)

    Why work was done? To be able to identify, on a proteomic level, cytochromes P450 (CYP) and UDP-glucuronosyltransferases (UGT) in mouse liver microsomes for the conazole exposure study IRP # NHEERL-ECD-SCN-CZ-2002-01-R1_Addendum 1. The new enrichment method was necessary beca...

  2. Introducing a new Book on the Ural-Altaic Language Classification (Towards Eurasian Linguistic Isoglosses: the Case of Turkic and Hungarian)

    NARCIS (Netherlands)

    Marácz, L.

    2014-01-01

    In this article, László Marácz introduces his own book on a new approach to the Ural-Altaic language classification. The book entitled ‘Towards Eurasian Linguistic Isoglosses: the Case of Hungarian and Turkic’ (henceforth ‘Towards Eurasian Linguistic Isoglosses…’ abbreviated as TELI) develops a

  3. Three-Dimensional Heat Transfer Analysis of Metal Fasteners in Roofing Assemblies

    Directory of Open Access Journals (Sweden)

    Manan Singh

    2016-11-01

    Full Text Available Heat transfer analysis was performed on typical roofing assemblies using HEAT3, a three-dimensional heat transfer analysis software. The difference in heat transferred through the roofing assemblies considered is compared between two cases—without any steel fasteners and with steel fasteners. In the latter case, the metal roofing fasteners were arranged as per Factor Mutual Global (FMG approvals, in the field, perimeter, and corner zones of the roof. The temperature conditions used for the analysis represented summer and winter conditions for three separate Climate Zones (CZ namely Climate Zone 2 or CZ2 represented by Orlando, FL; CZ3 represented by Atlanta, GA; and CZ6 zone represented by St. Paul, MN. In all the climatic conditions, higher energy transfer was observed with increase in the number of metal fasteners attributed to high thermal conductivity of metals as compared to the insulation and other materials used in the roofing assembly. This difference in heat loss was also quantified in the form of percentage change in the overall or effective insulation of the roofing assembly for better understanding of the practical aspects. Besides, a comparison of 2D heat transfer analysis (using THERM software and 3D analysis using HEAT3 is also discussed proving the relevance of 3D over 2D heat transfer analysis.

  4. Motivational Factors in Discussing Sexual Health with Young People with Chronic Conditions or Disabilities

    Science.gov (United States)

    Van der Stege, Heleen A.; Hilberink, Sander R.; Visser, Adriaan P.; Van Staa, AnneLoes

    2014-01-01

    The objective of this study was to identify determinants of professionals' intention to use the new board game SeCZ TaLK to facilitate sexual health discussions with young people with chronic health conditions and disabilities, and to gauge whether intention led to actual use. A cross-sectional web-based survey of 336 professionals before they…

  5. Cancellation of Surface Reverberation from a Bistatic Sonar.

    Science.gov (United States)

    1982-01-20

    output ref. 1 LMS adaptive + m ref. K jso• -’ filtr / + filter Tw second ×mit counter Figure 2- 1. Multiple Canceller Strutue for Application to CZ...No. 12, Dec. 1973. [3] B. Widrow, "Adaptive Filters" in Aspects of Network and System Theory, R. Kalman and N. DeClarts Eds., New York: Rinehart and

  6. NATO Air Command-Afghanistan: The Continuing Evolution of Airpower Command and Control

    Science.gov (United States)

    2014-02-01

    under the same AETF roof have been overwhelmingly positive. By having the EASOG commander in- volved in the weekly 9 AETF-A commander’s battle...single, perfect solution for CZ in a complex, constantly changing coalition environment-change itself is the only constant. Knowing this, we can

  7. Using a Board Game About Sexual Health with Young People with Chronic Conditions in Daily Practice

    NARCIS (Netherlands)

    Dr. H.A. van der Stege; MSc E.J.M. Bakker; Dr. S.R. Hilberink; Dr. A.L. van Staa

    2016-01-01

    The aim of the study was to gain insight into use of a new board game (SeCZ TaLK) to facilitate discussing sexual health with adolescents with chronic conditions in healthcare and special education, and to establish impeding and facilitating factors for using the game.

  8. Inertial Navigation System Standardized Software Development. Volume IV. Program Listings

    Science.gov (United States)

    1976-06-01

    8217 der 0’ ftI L’_ ’* C. C’ T iC C..C ’ C , -1 >’ C ." C’ý C’.. a’ c C’! 1 I.. b.. * I cc Cs c - ., ( Cz jeo -~ -e- Cj.c .j , j j uj m mU.. LU.C,~ t LAw L

  9. Soil processes and functions in critical zone observatories: hypotheses and experimental design

    NARCIS (Netherlands)

    Banwart, S.; Bernasconi, S.M.; Bloem, J.; Blum, W.; Ruiter, de P.C.; Gaans, van P.; Riemsdijk, van W.H.

    2011-01-01

    European Union policy on soil threats and soil protection has prioritized new research to address global soil threats. This research draws on the methodology of Critical Zone Observatories (CZOs) to focus a critical mass of international, multidisciplinary expertise at specific field sites. These CZ

  10. Facebook a jeho využití v marketingu

    OpenAIRE

    Míka, Michal

    2009-01-01

    Text is describing social networks from their beginning to present boom. It mentions the role of people within social networks and the role of moderny technologies. It describes in detail Facebook and marketing in its enviroment. In conclusion, this work contains a case study, where are some current methods of marketing on Facebook. This study is illustrated on the project Playzone.cz.

  11. Share Capital Increase Strategies and the Efficiency of Listed Companies – A Polish-German Comparative Analytical Study

    Directory of Open Access Journals (Sweden)

    Sajnóg Artur

    2014-06-01

    Full Text Available Wiodącym nurtem badań teoretyczno-empirycznych zaprezentowanych podjętych w opracowaniu stanowi porównawcza analiza wpływu określonych strategii kształtowania kapitału zakładowego na efektywność ekonomiczną spółek notowanych na polskim i niemieckim rynku kapitałowym. Przedstawiony problem badawczy realizowany jest w trzech częściach. Rozważania zawarte w części pierwszej zawierają ocenę możliwych powiązań efektywności działania przedsiębiorstwa z procesem podwyższania kapitału zakładowego. W części drugiej znajdują się wyniki badań empirycznych nad zmianami kapitału zakładowego badanych spółek wchodzących w skład indeksu WIG-20 oraz DAX, zaś część trzecia zawiera wyniki badań ich efektywności w kontekście wykorzystywanych metod podwyższania kapitału zakładowego.

  12. New Feedstock for c-Si Photovoltaics

    Science.gov (United States)

    Kravtsov, Alexey; Shagun, Alexander; Kravtsov, Anatoly

    2015-03-01

    Results from functional tests of highly doped silicon purified with electron beam melting, a new feedstock for photovoltaics are presented. Possibility of obtaining dislocation free single crystals from such feedstock in typical industrial processes (CZ and FZ) is shown, crystals' parameters are tested for coherence with requirements for PV silicon.

  13. Conference Proceedings Manoeuvring Aerodynamics Held in Toulouse, France on 1-2 May 1991 (La Manoeuvrabilite par l’Aerodynamique)

    Science.gov (United States)

    1991-11-01

    conatitue tine temps lea hvolutions du coefficient de ilustration. force normale Cz iaau du vol et de celul calculh par ls modble. Dana tin...10 comportefont obsorvE on vol et celul prdvu par Is simulation. Bibliographie "The phenomenon of dynamic stall’ Mac Croskoy W.J. ’JKI LS 1981-4

  14. The influence of inherited extensional structures on the tectonic evolution of an intracratonic chain: the example of the Western Pyrenees

    Science.gov (United States)

    Velasque, P. C.; Ducasse, L.; Muller, J.; Scholten, R.

    1989-05-01

    A geotraverse, constructed on the basis of surface and subsurface data across the Basque-Béarnais portion of the Pyrenees, east of the Pamplona fault, reveals, from north to south, the existence of three major tectono-sedimentary units: the North Pyrenean Zone (NPZ), the Central Zone (CZ) and the Axial Zone (AZ). These zones are characterized both by the type and age of their sediments and volcanics, and by the style of their Cretaceous synsedimentary structures. Paleogeographically, they correspond to a Cretaceous platform (AZ), margin (CZ) and basin (NPZ), separated by zones of normal faults. During Alpine convergence, the Cretaceous fault system was to varying degrees reactivated in the reverse sense. The NPZ grades into the CZ without any significant hiatus. By contrast, the CZ is separated from the AZ by a major southward overthrust, the Orly-Lakhoura overthrust, which shows up as the most important fault in the cross-section. Its subsurface continuation is constrained by regional microseismicity and other seismic data. All these data lead us to consider the Orhy-Lakhoura overthrust as the surface evidence of the Alpine crustal underthrust of Iberia below the European continental domain. Restoration of the cross-section suggests that this Alpine underthrust follows a previous crustal discontinuity linked to the Cretaceous extensional episode.

  15. Continuous Czochralski growth: Silicon sheet growth development of the large area silicon sheet task of the Low Cost Silicon Solar Array project

    Science.gov (United States)

    1978-01-01

    The primary objective of this contract is to develop equipment and methods for the economic production of single crystal ingot material by the continuous Czochralski (CZ) process. Continuous CZ is defined for the purpose of this work as the growth of at least 100 kilograms of ingot from only one melt container. During the reporting period (October, 1977 - September, 1978), a modified grower was made fully functional and several recharge runs were performed. The largest run lasted 44 hours and over 42 kg of ingot was produced. Little, if any, degradation in efficiency was observed as a result of pulling multiple crystals from one crucible. Solar efficiencies observed were between 9.3 and 10.4% AMO (13.0 and 14.6% AMI) compared to 10.5% (14.7% AMI) for optimum CZ material control samples. Using the SAMICS/IPEG format, economic analysis of continuous CZ suggests that 1986 DoE cost goals can only be met by the growth of large diameter, large mass crystals.

  16. QTL Information Table: 19 [Q-TARO

    Lifescience Database Archive (English)

    Full Text Available K., and Wu, P. (2004). Comparative mapping of QTLs for Al tolerance in rice and identification of positional Al-induced genes. J Zhejiang Univ Sci 5, 634-643. ... ...)Interval RIL Azucena IR1552 A RZ801 RG323 pha Mao, C.Z., Yang, L., Zheng, B.S., Wu, Y.R., Liu, F.Y., Yi, K.

  17. Synthesis, structure, photophysical and electroluminescent properties of a blue-green self-host phosphorescent iridium(III) complex

    Energy Technology Data Exchange (ETDEWEB)

    Sun, Jing; Wang, Hua [Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024 (China); Xu, Huixia, E-mail: xuhuixiatyut@163.com [Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024 (China); Li, Jie; Wu, Yuling; Du, Xiaogang [Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024 (China); Xu, Bingshe, E-mail: xubs@tyut.edu.cn [Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024 (China); College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024 (China)

    2015-07-15

    A kind of blue-green self-host phosphorescent iridium(III) complex, (CzPhBI){sub 2}Ir(tfmptz) [CzPhBI = 9-(6-(2-phenyl-1-benzimidazolyl)hexyl)-9-carbazole; tfmptz = 2-(5-trifluoromethyl-1,2,4-triazolyl)pyridine], was designed and synthesized. The synthesized iridium(III) complex was characterized by {sup 1}H NMR, {sup 19}F NMR, FT-IR, elemental analysis and X-ray single-crystal diffraction, respectively. Its thermal properties, optical properties and electrochemical properties were also investigated. The host-free organic electroluminescent devices with the configuration of ITO/MoO{sub 3} (3 nm)/NPB (30 nm)/TAPC (15 nm)/(CzPhBI){sub 2}Ir(tfmptz) (30 nm)/TBPI (30 nm)/LiF (1 nm)/Al (100 nm) had been fabricated. The devices exhibited excellent performance indicating that (CzPhBI){sub 2}Ir(tfmptz) was a promising phosphorescent material. - Highlights: • A blue-green self-host phosphorescent iridium(III) complex was synthesized. • The molecular structure, and photophysical properties were investigated. • Electroluminescent performance in host-free devices were discussed. • The maximum current efficiency 8.2 cd A{sup −1} and the maximum brightness 5420 cd m{sup −2} were achieved.

  18. Motivational factors in discussing sexual health with young people with chronic conditions or disabilities

    NARCIS (Netherlands)

    Stege, H.A. van der; Hilberink, S.R.; Visser, A.P.; Staa, A.L. van

    2014-01-01

    The objective of this study was to identify determinants of professionals’ intention to use the new board game SeCZ TaLK to facilitate sexual health discussions with young people with chronic health conditions and disabilities, and to gauge whether intention led to actual use. A cross-sectional web-

  19. Short-term effects of natural and NH4+-enriched chabazite zeolitite amendments to soil microbial biomass

    Science.gov (United States)

    Ferretti, Giacomo; Keiblinger, Katharina Maria; Di Giuseppe, Dario; Faccini, Barbara; Colombani, Nicolò; Zechmeister-Boltenstern, Sophie; Coltorti, Massimo; Mastrocicco, Micòl

    2017-04-01

    Natural zeolite-bearing rocks (zeolitites) are known to be a suitable material for agricultural purposes by improving soil physicochemical properties and nitrogen use efficiency (NUE). However, little is known about their effects on soil microbial biomass. Aim of this work is to evaluate short-term effects of different chabazite-zeolitite amendments on soil microbial biomass (and activity). To this purpose a silty-clay agricultural soil was amended in three different ways, by the addition of 5 and 15 wt% of natural chabazite zeolitites (NZ) and 10 wt% of NH4+-enriched chabazite zeolitites (CZ). Soil pH, water content, dissolved organic carbon (C), total dissolved N, NH4+, NO3-, NO2-, microbial biomass C and N and ergosterol were periodically measured over a time course of 16 days in a laboratory incubation experiment. In order to verify the immobilization of N derived from CZ into microbial biomass, the δ15N signature of microorganisms was evaluated by the Extraction-Fumigation-Extraction method followed by EA-IRMS analysis. This latter investigation was possible because zeolitites were enriched with NH4+ derived from pig-slurry, which have a very high 15N natural abundance that allow to trace microbial incorporation. Soil amended with 5 wt% of NZ showed increased ergosterol content as well as microbial C/N ratio starting from day 9 of incubation, suggesting that fungal biomass was probably favored, although the same behavior was not found in the soil amended with 15 wt% of the same material. On the other hand, the NH4+-enriched CZ showed strong interactions with soil microbial biomass N. Isotopic measurements supported microbial assimilation of the N introduced with CZ since the second day of incubation. The high dissolved organic C and microbial biomass N suggested an increase of mineralization and immobilization processes. In addition, in CZ amended soil, microbial biomass N was related to NO3- production over time and inversely related to NH4+, suggesting high

  20. Surface stabilized nanosized Ce(x)Zr(1-x)O(2) solid solutions over SiO(2): characterization by XRD, Raman, and HREM techniques.

    Science.gov (United States)

    Reddy, Benjaram M; Lakshmanan, Pandian; Khan, Ataullah; Loridant, Stéphane; López-Cartes, Carlos; Rojas, Teresa C; Fernandez, Asunción

    2005-07-21

    Ce(x)Zr(1)(-)(x)O(2) solid solutions deposited over silica surface were investigated by X-ray diffraction (XRD), Raman spectroscopy (RS), and high-resolution transmission electron microscopy (HREM) techniques in order to understand the role of silica support and the temperature stability of these composite oxides. For the purpose of comparison, an unsupported Ce(x)Zr(1)(-)(x)O(2) was also synthesized and subjected to characterization by various techniques. The Ce(x)Zr(1)(-)(x)O(2)/SiO(2) (CZ/S) (1:1:2 mole ratio based on oxides) was synthesized by depositing Ce(x)Zr(1)(-)(x)O(2) solid solution over a colloidal SiO(2) support by a deposition precipitation method and unsupported Ce(x)Zr(1)(-)(x)O(2) (CZ) (1:1 mole ratio based on oxides) was prepared by a coprecipitation procedure, and the obtained catalysts were subjected to thermal treatments from 773 to 1073 K. The XRD measurements disclose the presence of cubic phases with the composition Ce(0.75)Zr(0.25)O(2) and Ce(0.6)Zr(0.4)O(2) in CZ samples, while CZ/S samples possess Ce(0.75)Zr(0.25)O(2), Ce(0.6)Zr(0.4)O(2), and Ce(0.5)Zr(0.5)O(2) in different proportions. The crystallinity of these phases increased with increasing calcination temperature. The cell a parameter estimations indicate contraction of ceria lattice due to the incorporation of zirconium cations into the CeO(2) unit cell. Raman measurements indicate the presence of oxygen vacancies, lattice defects, and displacement of oxygen ions from their normal lattice positions in both the series of samples. The HREM results reveal, in the case of CZ/S samples, a well-dispersed nanosized Ce-Zr-oxides over the surface of amorphous SiO(2). The structural features of these crystals as determined by digital diffraction analysis of experimental images reveal that the Ce-Zr-oxides are mainly in the cubic geometry and exhibit high thermal stability. Oxygen storage capacity measurements by a thermogravimetric method reveal a substantial enhancement in the oxygen

  1. Where microorganisms meet rocks in the Earth's Critical Zone

    Directory of Open Access Journals (Sweden)

    D. M. Akob

    2011-03-01

    Full Text Available The Earth's Critical Zone (CZ is the critical, outer shell of the Earth that provides an arena for the interplay of diverse physical, chemical, and biological processes that are fundamental for sustaining life. As microbes are the principle drivers of biogeochemical cycles, it is necessary to understand the biodiversity of the CZ unseen majority and their impact on life-sustaining processes. This review aims to summarize the factors controlling where microbes (prokaryotes and micro-eukaryotes live within the CZ and what is known to date about their diversity and function. Microbes live in all regions of the CZ down to 5 km depth, but due to changing habitat complexity, e.g., variability in pore spaces, water, oxygen, and nutrients, their functional role changes with depth. The abundance of prokaryotes and micro-eukaryotes decreases from a maximum of 1010 or 107 cells g soil−1 up to eight orders of magnitude with depth. Symbiotic mycorrhizal fungi and free-living decomposers are best understood in soil habitats, where they are up to 103 cells g soil−1. However, little is known about their identity and impact on weathering in the deep subsurface. The relatively low abundance of micro-eukaryotes in the deep subsurface suggests that these organisms are either limited in space or nutrients or unable to cope with oxygen limitations. Since deep regions of the CZ are limited in the recent input of photosynthesis-derived carbon, microbes are dependent on deposited organic material or on chemolithoautotrophic metabolism that allows for the establishment of a complete food chain independent from the surface. However, the energy flux available might only allow cell growth over tens to thousands of years. The recent development of "omics" technologies has provided microbial ecologists with methods to link the composition and function of in situ microbial communities. We should expect new metabolic

  2. Inoculation with chlamydospores of Trichoderma asperellum SM-12F1 accelerated arsenic volatilization and inlfuenced arsenic availability in soils

    Institute of Scientific and Technical Information of China (English)

    WANG Xiu-rong; SU Shi-ming; ZENG Xi-bai; BAI Ling-yu; LI Lian-fang; DUAN Ran; WANG Ya-nan; WU Cui-xia

    2015-01-01

    Fungi capable of arsenic (As) accumulation and volatilization are hoped to tackle As-contaminated environment in the future. However, little data is available regarding their performances in ifeld soils. In this study, the chlamydospores of Trichoderma asperel um SM-12F1 capable of As resistance, accumulation, and volatilization were inoculated into As-contaminated Chen-zhou (CZ) and Shimen (SM) soils, and subsequently As volatilization and availability were assessed. The results indicated that T. asperel um SM-12F1 could reproduce wel in As-contaminated soils. After cultivated for 42 days, the colony forming units (cfu) of T. asperel um SM-12F1 in CZ and SM soils reached 1010–1011 cfu g–1 fresh soil when inoculated at a rate of 5.0%. Inoculation with chlamydospores of T. asperel um SM-12F1 could signiifcantly accelerate As volatilization from soils. The contents of volatilized As from CZ and SM soils after being inoculated with chlamydospores at a rate of 5.0%for 42 days were 2.0 and 0.6μg kg–1, respectively, which were about 27.5 and 2.5 times higher than their corresponding controls of no inoculation (CZ, 0.1μg kg–1;SM, 0.3μg kg–1). Furthermore, the available As content in SM soils was decreased by 23.7%, and that in CZ soils increased by 3.3%compared with their corresponding controls. Further studies showed that soil pH values signiifcantly decreased as a function of cultivation time or the inoculation level of chlamydospores. The pH values in CZ and SM soils after being inoculated with 5.0%of chlamydospores for 42 days were 6.04 and 6.02, respectively, which were lowered by 0.34 and 1.21 compared with their corresponding controls (CZ, 6.38;SM, 7.23). The changes in soil pH and As-binding fractions after inoculation might be responsible for the changes in As availability. These observations could shed light on the future remediation of As-contaminated soils using fungi.

  3. How deep can surface signals be traced in the critical zone? Merging biodiversity with biogeochemistry research in a central German Muschelkalk landscape

    Science.gov (United States)

    Küsel, Kirsten; Totsche, Kai; Trumbore, Susan; Lehmann, Robert; Steinhäuser, Christine; Herrmann, Martina

    2016-04-01

    The Earth's Critical Zone (CZ) is a thin living layer connecting atmosphere and geosphere, including aquifers. Humans live in the CZ and benefit from the vital supporting services it provides. However, the CZ is increasingly impacted by human activities including land and resource use, pollution and climate change. Recent interest in uniting the many disciplines studying this complex domain has initiated an international network of research infrastructure platforms that allow access to the CZ in a range of geologic settings. In this paper a new such infrastructure platform associated with the Collaborative Research Center AquaDiva is described, that uniquely seeks to combine CZ research with detailed investigation of the functional biodiversity of the subsurface. Overall, AquaDiva aims to test hypotheses about how water connects surface conditions set by land cover and land management to the biota and biogeochemical functions in the subsurface. With long-term and continuous observations, hypotheses about how seasonal variations and extreme events at the surface impact subsurface processes, community structure and function, are tested. AquaDiva has established the Hainich Critical Zone Exploratory (CZE) in central Germany in an alkaline geological setting of German Triassic Muschelkalk formations. The Hainich CZE includes specialized monitoring wells to access the vadose zone and two main groundwater complexes in limestone and marlstone parent materials along a ~6 km transect spanning forest, pasture and agricultural land uses. Initial results demonstrate fundamental differences in the biota and biogeochemistry of the two aquifer complexes that trace back to the land uses in their respective recharge areas. They also show the importance of antecedent conditions on the impact of precipitation events on responses in terms of groundwater dynamics, chemistry and ecology. Thus we find signals of surface land use and events can be detected in the subsurface CZ. Future

  4. Promoting US-China Critical Zone Science Collaboration and Coordination Through Established Subnational Bilateral Science Partnerships: The US-China EcoPartnership for Economic and Environmental Sustainability.

    Science.gov (United States)

    Filley, T. R.; Guo, D.; Plante, A. F.

    2015-12-01

    The concept of critical zone (CZ) science has gained wide recognition with actively funded and emerging CZ observatory programs across the globe. There is much to be gained through international collaboration that links field, laboratory, and modeling efforts from across the emerging global CZ networks, but building international ties is difficult, especially when peer-to-peer connections are nascent, separated by great distances, and span different cultural and political environments. The U.S. and China share many climatic and geological similarities but differ greatly in the magnitude and timescale of human alteration of their landscapes making the comparative study of their respective pasts, current state, and future co-evolution an outstanding scientific opportunity to better understand, predict, and respond to human influence on the CZ. Leveraging the infrastructure and trust capital of longstanding sub-national volunteer scientific networks to bring together people and organizations is a resource-efficient mechanism to build cross-network CZ programs. The U.S.-China EcoPartnership for Environmental Sustainability (USCEES) is one of 30 current EcoPartnerships established beginning in May 2008 by a joint agreement between the U.S. Department of State and China's National Development and Reform Commission with the overarching goal of addressing the interconnected challenges of environmental, social, and economic sustainability through bi-national research innovation, communication, and entrepreneurship. The 2015 USCEES annual conference on "Critical Zone Science, Sustainability, and Services in a Changing World" was co-sponsored by the U.S. Cross-CZO Working Group on Organic Matter Dynamics and hosted three NSF-funded workshops on organic matter dynamics:1) methods for large and complex data analysis, 2) erosion and deposition processes, and 3) mineralogical and microbial controls on reactivity and persistence. This paper highlights outcomes from the workshops

  5. Tribological Properties of Copper-Based Composites with Lubricating Phase Particles

    Directory of Open Access Journals (Sweden)

    Juszczyk B.

    2014-06-01

    Full Text Available W pracy zamieszczono wyniki badań dotyczące wpływu składu chemicznego na strukturę oraz właściwości tribologiczne materiałów kompozytowych na osnowie miedzi przeznaczonych na łożyska ślizgowe. Przedmiot badań stanowiły stopy miedzi z udziałem cząstek faz smarnych w postaci grafitu, dwusiarczku wolframu (WS2, dwusiarczku molibdenu (M0S2 oraz węgla szklistego. Metaliczną osnowę materiałów kompozytowych stanowiły stopy z układu Cu-Sn-Zn. Udział masowy cząstek faz smarnych wynosił od 5 do 20%. Proces wytwarzania badanych materiałów obejmował procesy przebiegające z całkowitym oraz częściowym udziałem fazy ciekłej i przebiegał dwutorowo. Do wytwarzania kompozytów zastosowano zarówno metodę klasycznej metalurgii proszków, jak i metodę topienia i odlewania z jednoczesnym mieszaniem tzw. stir casting. Do ciekłej kąpieli metalicznej wprowadzono podgrzane do temperatury 200°C cząstki faz smarnych a następnie realizowano proces mieszania i odlewania do form. W przypadku otrzymywania kompozytów na drodze metalurgii proszków proces obejmował mieszanie proszków brązu oraz cząstek faz smarnych, a następnie ich konsolidację. Proces spiekania prowadzono w temperaturze z zakresu 750+800°C. Wytworzone stopy poddano badaniom mikrostruktury oraz oceny właściwości tribologicznych na tribometrze CSM Instruments.

  6. Elevating the triplet energy levels of dibenzofuran-based ambipolar phosphine oxide hosts for ultralow-voltage-driven efficient blue electrophosphorescence: from D-A to D-π-A systems.

    Science.gov (United States)

    Han, Chunmiao; Zhang, Zhensong; Xu, Hui; Li, Jing; Zhao, Yi; Yan, Pengfei; Liu, Shiyong

    2013-01-21

    A series of donor (D)-π-acceptor (A)-type phosphine-oxide hosts (DBF(x) POPhCz(n)), which were composed of phenylcarbazole, dibenzofuran (DBF), and diphenylphosphine-oxide (DPPO) moieties, were designed and synthesized. Phenyl π-spacer groups were inserted between the carbazolyl and DBF groups, which effectively weakened the charge transfer and triplet-excited-state extension. As the result, the first triplet energy levels (T(1)) of DBF(x)POPhCz(n) are elevated to about 3.0 eV, 0.1 eV higher than their D-A-type analogues. Nevertheless, the electrochemical analysis and DFT calculations demonstrated the ambipolar characteristics of DBF(x)POPhCz(n). The phenyl π spacers hardly influenced the frontier molecular orbital (FMO) energy levels and the carrier-transporting ability of the materials. Therefore, these D-π-A systems are endowed with higher T(1) states, as well as comparable electrical properties to D-A systems. Phosphorescent blue-light-emitting diodes (PHOLEDs) that were based on DBF(x)POPhCz(n) not only inherited the ultralow driving voltages (2.4 V for onset, about 2.8 V at 200 cd m(-2), and efficiencies, including about 26 cd A(-1) for current efficiency, 30 Lm W(-1) for power efficiency, and 13% for external quantum efficiency, which were more than twice the values of devices that are based on conventional unipolar host materials. This performance makes DBFDPOPhCz(n) among the best hosts for ultralow-voltage-driven blue PHOLEDs reported so far. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  7. Surface localization of glucosylceramide during Cryptococcus neoformans infection allows targeting as a potential antifungal.

    Directory of Open Access Journals (Sweden)

    Ryan Rhome

    Full Text Available Cryptococcus neoformans (Cn is a significant human pathogen that, despite current treatments, continues to have a high morbidity rate especially in sub-Saharan Africa. The need for more tolerable and specific therapies has been clearly shown. In the search for novel drug targets, the gene for glucosylceramide synthase (GCS1 was deleted in Cn, resulting in a strain (Δgcs1 that does not produce glucosylceramide (GlcCer and is avirulent in mouse models of infection. To understand the biology behind the connection between virulence and GlcCer, the production and localization of GlcCer must be characterized in conditions that are prohibitive to the growth of Δgcs1 (neutral pH and high CO(2. These prohibitive conditions are physiologically similar to those found in the extracellular spaces of the lung during infection. Here, using immunofluorescence, we have shown that GlcCer localization to the cell surface is significantly increased during growth in these conditions and during infection. We further seek to exploit this localization by treatment with Cerezyme (Cz, a recombinant enzyme that metabolizes GlcCer, as a potential treatment for Cn. Cz treatment was found to reduce the amount of GlcCer in vitro, in cultures, and in Cn cells inhabiting the mouse lung. Treatment with Cz induced a membrane integrity defect in wild type Cn cells similar to Δgcs1. Cz treatment also reduced the in vitro growth of Cn in a dose and condition dependent manner. Finally, Cz treatment was shown to have a protective effect on survival in mice infected with Cn. Taken together, these studies have established the legitimacy of targeting the GlcCer and other related sphingolipid systems in the development of novel therapeutics.

  8. A quarter century of biomonitoring atmospheric pollution in the Czech Republic.

    Science.gov (United States)

    Suchara, Ivan; Sucharová, Julie; Holá, Marie

    2017-05-01

    The Czech Republic (CZ) had extremely high emissions and atmospheric deposition of pollutants in the second half of the 1980s. Since the beginning of the 1990s, moss, spruce bark and forest floor humus have been used as bioindicators of air quality. In the first half of the 1990s, seven larger areas were found to be affected by high atmospheric deposition loads. Six of these "hot spots" were caused by industrial pollution sources, mainly situated in coal basins in the NW and NE part of the country, and one large area in the SE was affected by increased deposition loads of eroded soil particles. After restructuring of industry in CZ, these hot spots were substantially reduced or even disappeared between 1995 and 2000. Since 2000, only two larger areas with slightly increased levels of industrial pollutant deposition and a larger area affected by soil dust have repeatedly been identified by biomonitoring. The distribution of lead isotope ratios in moss showed the main deposition zones around important emission sources. Very high SO2 emissions led to extreme acidity of spruce bark extracts (pH of about 2.3) at the end of the 1980s. The rate of increasing bark pH was strikingly similar to the rate of recovery of acid wet deposition measured at forest stations in CZ. By about 2005, when the median pH value in bark increased to about 3.2, the re-colonisation of trees by several epiphyte lichen species was observed throughout CZ. An increase in the accumulation of Chernobyl-derived (137)Cs in bark was detected at about ten sites affected by precipitation during the time when radioactive plumes crossed CZ (1986). Accumulated deposition loads in forest floor humus corresponded to the position of the moss and bark hot spots.

  9. Oxygen aggregation kinetics, thermal donors and carbon-oxygen defect formation in silicon containing carbon and tin

    Energy Technology Data Exchange (ETDEWEB)

    Angeletos, T.; Sgourou, E. N.; Andrianakis, A.; Diamantopoulou, A.; Londos, C. A. [Solid State Section, Physics Department, University of Athens, Panepistimiopolis, Zografos, 157 84 Athens (Greece); Chroneos, A. [Faculty of Engineering and Computing, Coventry University, Priory Street, Coventry CV1 5FB (United Kingdom); Department of Materials, Imperial College London, London SW7 2BP (United Kingdom)

    2015-07-07

    Localized vibrational mode spectroscopy measurements on Czochralski silicon (Cz-Si) samples subjected to isothermal annealing at 450 °C are reported. First, we studied the effect of carbon (C) and tin (Sn) isovalent dopants on the aggregation kinetics of oxygen. It is determined that the reduction rate of oxygen is described by the Johnson-Mehl-Avrami equation in accordance with previous reports. The activation energy related with the reaction rate constant of the process is calculated to increase from Cz-Si, to C-doped Cz-Si (CCz-Si), to Sn-doped Cz-Si contained C (SnCz-Si). This is attributed to the presence of the isovalent dopants that may impact both the kinetics of the oxygen atoms and also may lead to the formation of other oxygen-related clusters. Second, we studied the effect of Sn on the formation and evolution of carbon-oxygen (C-O) defects. It was determined that the presence of Sn suppresses the formation of the C-O defects as indicated by the reduction in the strength of the 683, 626, and 586 cm{sup −1} well-known bands of C{sub s}O{sub i} defect. The phenomenon is attributed to the association of Sn with C atoms that may prevent the pairing of O with C. Third, we investigated the effect of C and Sn on the formation of thermal donors (TDs). Regarding carbon our results verified previous reports that carbon suppresses the formation of TDs. Interestingly, when both C and Sn are present in Si, very weak bands of TDs were observed, although it is known that Sn alone suppress their formation. This may be attributed to the competing strains of C and Sn in the Si lattice.

  10. The effect of Pd precursor on Pd/Ce0.67Zr0.33O2 catalysts for automotive emission control%钯前驱体对汽车尾气处理Pd/Ce0.67Zr0.33O2催化剂催化性能的影响

    Institute of Scientific and Technical Information of China (English)

    林嗣煜; 杨林颜; 阳雪; 周仁贤

    2015-01-01

    分别以Pd(NO3)2, Pd(NH3)4(NO3)2和H2PdCl4为钯前驱体制备了Pd/Ce0.67Zr0.33O2(CZ)催化剂.以硝酸钯为钯前驱体制得的Pd/CZ(NO)催化剂具有较高的储氧量,存在较多的小的钯簇,其钯与载体间相互作用较强,因此在三种新鲜催化剂中对HC和CO的消除表现出了最好的催化活性.以硝酸四氨钯为钯前驱体制得的Pd/CZ(NH)催化剂具有较高的钯分散度,存在较多的大的钯簇,同时存在金属态和氧化态的钯,从而对NO和NO2的消除表现出了较好的催化活性.以氯钯酸为钯前驱体制得的Pd/CZ(Cl)催化剂由于钯分散度较小,钯与载体间作用较弱,存在的CeOCl抑制了氧空穴的生成,因此对各种反应物的催化活性都较低.但Pd/CZ(Cl)催化剂表现出了较好的热稳定性,这是由于老化处理消除了残余的氯物种并且促进了钯与载体间的作用.%A Pd/CZ(NO) catalyst prepared with Pd(NO3)2 as the metal precursor exhibited the best catalytic performance for HC and CO elimination because of a higher oxygen storage capacity, abundant small Pdn clusters and a strong Pd‐support interaction that facilitated electron transfer from PdOx particles to the CZ support. A Pd/CZ(NH) catalyst prepared with Pd(NH3)4(NO3)2 as the metal pre‐cursor exhibited good performance for NO and NO2 elimination due to a higher Pd dispersion, abundant bigger Pdn clusters and oxidized/metallic Pd coexistence. A Pd/CZ(Cl) catalyst prepared with H2PdCl4 as the metal precursor exhibited low catalytic activity due to a low Pd dispersion, weak Pd‐support interaction, and the trace amount of CeOCl which inhibited oxygen vacancy crea‐tion. However, it showed good thermal stability, and benefited when an aging treatment removed the residual chlorine species and also promoted the interaction between PdOx and the support.

  11. Structural characterization of CeO(2)-ZrO(2)/TiO(2) and V(2)O(5)/CeO(2)-ZrO(2)/TiO(2) mixed oxide catalysts by XRD, Raman spectroscopy, HREM, and other techniques.

    Science.gov (United States)

    Reddy, Benjaram M; Lakshmanan, Pandian; Khan, Ataullah; López-Cartes, Carlos; Rojas, Teresa C; Fernandez, Asunción

    2005-02-10

    Structural characteristics of CeO(2)-ZrO(2)/TiO(2) (CZ/T) and V(2)O(5)/CeO(2)-ZrO(2)/TiO(2) (V/CZ/T) mixed oxide catalysts have been investigated using X-ray diffraction (XRD), BET surface area, Raman spectroscopy (RS), and high-resolution transmission electron microscopy (HREM) techniques. The CeO(2)-ZrO(2) (1:1 mole ratio) solid solution was deposited over a finely powdered TiO(2) support by a deposition precipitation method. A nominal 5 wt % V(2)O(5) was impregnated over the calcined (773 K) CZ/T mixed oxide carrier by a wet impregnation technique. The obtained CZ/T and V/CZ/T samples were further subjected to thermal treatments from 773 to 1073 K to understand the dispersion and temperature stability of these materials. In the case of CZ/T samples, the XRD results suggest the formation of different cubic and tetragonal Ce-Zr-oxide phases, Ce(0.75)Zr(0.25)O(2), Ce(0.6)Zr(0.4)O(2), Ce(0.5)Zr(0.5)O(2), and Ce(0.16)Zr(0.84)O(2) in varying proportions depending on the treatment temperature. With increasing calcination temperature from 773 to 1073 K, the intensity of the lines pertaining to cubic Ce(0.6)Zr(0.4)O(2) and Ce(0.5)Zr(0.5)O(2) phases increased at the expense of cubic Ce(0.75)Zr(0.25)O(2), indicating more incorporation of zirconia into the ceria lattice. The TiO(2) was mainly in the anatase form whose crystallite size also increased with increasing treatment temperature. A better crystallization and more incorporation of zirconia into the ceria lattice was noted when CZ/T was impregnated with V(2)O(5). However, no crystalline V(2)O(5) could be seen from both XRD and RS measurements. In particular, a preferential formation of CeVO(4) compound and an intense tetragonal Ce(0.16)Zr(0.84)O(2) phase were noted beyond 873 K. The HREM results indicate, in the case of CZ/T samples, a well-dispersed Ce-Zr-oxide of the size approximately 5 nm over the bigger crystals ( approximately 40 nm) of TiO(2) when treated at 873 K. The exact structural features of these

  12. Stepen ispitanosti šumadijsko-vojvođanskog dijalekta

    Directory of Open Access Journals (Sweden)

    Bošnjaković Žarko

    2009-01-01

    Full Text Available Avtory v nastojaščej rabote ukazyvajut na nedostatočnuju issledovannost' narodnyh govorov šumadijsko-voevodinskogo dialekta metodami tradicionnoj i urbanistskoj dialektologii. V rabote kartografičeski predstavleny oblasti, v kotoryh issledovanija zakončeny (oni prednaznačeny dlja nužd monografičeskih opisanij, Serbskogo dialektologičeskogo atlasa i Obščeslavjanskogo lingvističeskogo atlasa. Odnovremenno vydvinuty geografičeskie i administrativnye punkty s inventarem dereven', kotorye dolžny byt' podvergnuty issledovaniju. Karty pokazali, čto voevodinskoj poddialekt issledovan polnost'ju, pri naličii gustoj seti punktov. Ishodja iz togo, čto govory Bački i Srema issledovalis' let pjat'desjat tomu nazad, a material banatskih govorov zaregistrirovan primerno v to že samoe vremja, a opublikovan tol'ko v poslednie gody HH veka, sledovalo by ustanovit' napravlenija v razvitii dannyh govorov, a takže nastupivšie izmenenija. Odnako, ëtnografičeskie i jazykovye punkty na territorii šumadijsko-voevodinskogo dialekta ne issledovany v podhodjaščej stepeni. Do sih por issledovany govory časti Mačvy, Šumadijskoj Kolubary, Kraguevackoj Lepenicy i Gruži. Sporadičeskaja issledovannost' nalico v Kačere, Valevskoj Kolubare, Pocerine i v okrestnostjah Belgrada. Neissledovannymi ostalis' govory Jadara, Radževiny, Valevskoj Podgoriny, Posavotamnavy, Tamnavy Takovo, a takže čast' govorov meždu Dragačevom i Gružej.

  13. Temporal correlation between two channels EEG of bipolar lead in the head midline is associated with sleep-wake stages.

    Science.gov (United States)

    Li, Yanjun; Tang, Xiaoying; Xu, Zhi; Liu, Weifeng; Li, Jing

    2016-03-01

    Whether the temporal correlation between inter-leads Electroencephalogram (EEG) that located on the boundary between left and right brain hemispheres is associated with sleep stages or not is still unknown. The purpose of this paper is to evaluate the role of correlation coefficients between EEG leads Fpz-Cz and Pz-Oz for automatic classification of sleep stages. A total number of 39 EEG recordings (about 20 h each) were selected from the expanded sleep database in European data format for temporal correlation analysis. Original waveform of EEG was decomposed into sub-bands δ (1-4 Hz), θ (4-8 Hz), α (8-13 Hz) and β (13-30 Hz). The correlation coefficient between original EEG leads Fpz-Cz and Pz-Oz within frequency band 0.5-30 Hz was defined as r(EEG) and was calculated every 30 s, while that between the two leads EEG in sub-bands δ, θ, α and β were defined as r(δ), r(θ), r(α) and r(β), respectively. Classification of wakefulness and sleep was processed by fixed threshold that derived from the probability density function of correlation coefficients. There was no correlation between EEG leads Fpz-Cz and Pz-Oz during wakefulness (|r| r > 0.1 for r(EEG) and r(δ)), while low correlation existed during sleep (r ≈ -0.4 for r(EEG), r(δ), r(θ), r(α) and r(β)). There were significant differences (analysis of variance, P sleep when in comparison with that during wakefulness, respectively. The accuracy for distinguishing states between wakefulness and sleep was 94.2, 93.4, 89.4, 85.2 and 91.4% in terms of r(EEG), r(δ), r(θ), r(α) and r(β), respectively. However, no correlation index between EEG leads Fpz-Cz and Pz-Oz could distinguish all five types of wakefulness, rapid eye movement (REM) sleep, N1 sleep, N2 sleep and N3 sleep. In conclusion, the temporal correlation between EEG bipolar leads Fpz-Cz and Pz-Oz are highly associated with sleep-wake stages. Moreover, high accuracy of sleep-wake classification could be achieved by the temporal correlation

  14. Service Offering at Electrical Equipment Manufacturers

    Directory of Open Access Journals (Sweden)

    Lucie Kaňovská

    2015-09-01

    Full Text Available Purpose of the article: The aim of the paper is to uncover ways of managing service offering provid-ed by electrical equipment manufactures in the Czech Republic. The segment is extremely important for Czech industry nowadays, especially because of many companies being subcontractors for the car industry and mechanical engineering. The producers of electric equipment comply with the Czech in-dustry classification CZ-NACE 27. Methodology/methods: The questionnaire in the form of the Likert scale was prepared to gather in-formation about customer services. The respondents were usually directors or managers, e.g. employ-ees with high competencies of knowing customer services in this particular market. The total of 22 companies were included in the survey. Research was focused on the following industries classifica-tions belonging to CZ-NACE 27: CZ-NACE 27, CZ-NACE 271 and CZ-NACE 273. According to Czech Statistical Office the total number of companies belonging to these 3 segments is 136. It means 16,2 % companies belonging to CZ-NACE 27 participated in our research. Basic statistical methods were used to analyse the complete database. Scientific aim: The paper deals with the problem of service offering provided by today’s manufactur-ers. Global understanding of services that manufacturers really develop, sell, deliver and manage is still limited. Findings: Managing service offering provided by today‘s manufacturers shows that 1 Manufacturers not offer only tangible products, but also wide range of services and even information and support. 2 New products are not designed only according to company technicians, but also according to their cus-tomers. Their products and services are developed, tested and improved according to their needs. 3 Services provide complex customer care from time product selection to its end. Conclusions: Manufacturers of tangible products need to enlarge their product offering to be able to satisfy customers. Therefore

  15. Geographic List of Prime Contract Awards. Oct 91 - Sep 92. FY92. (Goodells Michigan - Warrenton Missouri)

    Science.gov (United States)

    1993-01-01

    34; "! f0)(JC1.1 " N INcJ0) N (IjN (14 " N \\IC~ . - 11 1 (-4 IC)-mO to Inmu ) u) n n u) t I n otu l r t i inm mtfflfl trCi n nu,•U) I~n n inInIn tonIn 1n u) C...ZZZZZ2ZZZ ZZZZZZZZZZZZZZ2ZzzzzzZZZz It CnOOCF .. CZ cz cZZZZZZZZZ Czzzzzz2zzzzzzzzzzzzz22Zzz!Z 41 C :000 MW)0 .0#0) 0)C~c 0ICOL0 r. 0 000c0 3* InMU )mr

  16. The electronic transport characteristics of hybridized hexagon beryllium sulfide and graphene nanoribbons

    Science.gov (United States)

    Wang, Lihua; Ding, Bingjun; Guo, Yong

    2017-01-01

    Hybridized Z-BexSyCz (x + y + z = 16) systems connected by zigzag beryllium-sulfide (BeS) and graphene nanoribbons are theoretically designed, and their electronic transport characteristics are explored by first-principles approach. For the hybridized systems with unequal number of x and y, i.e. z is an odd number, an exceptional negative differential resistance (NDR) property occurs. However, for the hybridized systems including an even number of zigzag carbon chains, namely x equal to y, an interesting current-limited behavior happens. Meanwhile, the NDR phenomenon disappears. The spin transport properties of these hybridized Z-BexSyCz systems with parallel magnetism configuration also reveal the above odd-even dependence conductance behavior.

  17. Modeling of Performance And Safety of a Multi-Task Unmanned Autonomous Maritime Vehicle / Modelowanie Ruchu i Bezpieczeństwa Wielozadaniowego Bezzałogowego Autonomicznego Pojazdu Wodnego

    Directory of Open Access Journals (Sweden)

    Gerigk Mirosław K.

    2015-09-01

    Full Text Available W początkowej części artykułu przedstawiono cel badań. Następnie, opisano metodę badań. Potem, zaprezentowano przedmiot badań: bezzałogowy autonomiczny pojazd wodny. Z kolei, przedstawiono model zachowania się pojazdu, w tym jego balastowania i ruchu. W artykule przedstawiono wybrane informacje na temat zintegrowanego systemu sterowania, pozycjonowania i stabilizacji pojazdu. Taki system umożliwia otrzymanie w pełni autonomicznego pojazdu. W końcowej części pracy przedstawiono wybrane problemy związane z oceną ryzyka i bezpieczeństwa pojazdu.

  18. Investigation of Backside Textures for Genesis Solar Wind Silicon Collectors

    Science.gov (United States)

    Gonzalez, C. P.; Burkett, P. J.; Rodriguez, M. C.; Allton, J. H.

    2014-01-01

    Genesis solar wind collectors were comprised of a suite of 15 types of ultrapure materials. The single crystal, pure silicon collectors were fabricated by two methods: float zone (FZ) and Czochralski (CZ). Because of slight differences in bulk purity and surface cleanliness among the fabrication processes and the specific vendor, it is desirable to know which variety of silicon and identity of vendor, so that appropriate reference materials can be used. The Czochralski method results in a bulk composition with slightly higher oxygen, for example. The CZ silicon array wafers that were Genesis-flown were purchased from MEMC Electronics. Most of the Genesis-flown FZ silicon was purchased from Unisil and cleaned by MEMC, although a few FZ wafers were acquired from International Wafer Service (IWS).

  19. Shape-controlled crystal growth of Sr3NbGa3Si2O14 and Sr3TaGa3Si2O14 piezoelectric crystals by the micro-pulling-down method.

    Science.gov (United States)

    Yokota, Yuui; Sato, Masato; Futami, Yoshisuke; Tota, Kazushige; Onodera, Ko; Yanagida, Takayuki; Yoshikawa, Akira

    2012-09-01

    We grew column-shaped Sr(3)NbGa(3)Si(2)O(14) (SNGS) and Sr(3)TaGa(3)Si(2)O(14) (STGS) langasite-type piezoelectric single crystals by the micro-pulling-down (μ-PD) method. 3-mm-diameter SNGS and STGS crystals were grown using a Pt-Rh crucible with a 3-mm-diameter columnar die. According to X-ray rocking curve measurements, the grown crystals had crystallinity equivalent to that of crystals grown by the Czochralski (Cz) method. The crystals were single-phase materials with langasite-type crystal structure. The lattice parameters of the grown crystals were almost consistent with those of crystals grown by the Cz method.

  20. Scale up aspects of directional solidification and Czochralski silicon growth processes in traveling magnetic fields

    Science.gov (United States)

    Dropka, Natasha; Ervik, Torunn; Czupalla, Matthias; Kiessling, Frank M.

    2016-10-01

    We performed 3D simulations of directional solidification (DS) and Czochralski (Cz) silicon growth processes in traveling magnetic fields (TMFs) and verified them with the experimental data that were available. Particularly, we studied silicon DS growth in real G1, G2 and G5 size setups and Cz growth in 6″ and 24″ crucibles in furnaces provided with KRISTMAG® heater magnet modules (HMMs). TMFs were used for a solid/liquid interface shaping and for a melt stirring. Based on our simulation findings, we discussed scale up challenges and proposed a method for safe upscaling. The method related all present driving forces using dimensionless numbers: Grashof (Gr), Stephan (Ste), Reynolds (Re), Shielding (S) and magnetic forcing number (F).

  1. Potential productivity benefits of float-zone versus Czochralski crystal growth

    Science.gov (United States)

    Abe, T.

    1985-01-01

    Efficient mass production of single-crystal silicon is necessary for the efficient silicon solar arrays needed in the coming decade. However, it is anticipated that there will be difficulty growing such volumes of crystals using conventional Czochralski (Cz) methods. While the productivity of single crystals might increase with a crystal diameter increase, there are two obstacles to the mass production of large diameter Czochralski crystals, the long production cycle due to slow growth rate and the high heat requirements of the furnaces. Also counterproductive would be the large resistivity gradient along the growth direction of the crystals due to impurity concentration. Comparison between Float zone (FZ) and Cz crystal growth on the basis of a crystal 150 mm in diameter is on an order of two to four times in favor of the FZ method. This advantage results from high growth rates and steady-state growth while maintaining a dislocation-free condition and impurity segregation.

  2. Identification of lifetime limiting defects by temperature- and injection-dependent photoluminescence imaging

    Science.gov (United States)

    Schön, Jonas; Youssef, Amanda; Park, Sungeun; Mundt, Laura E.; Niewelt, Tim; Mack, Sebastian; Nakajima, Kazuo; Morishita, Kohei; Murai, Ryota; Jensen, Mallory A.; Buonassisi, Tonio; Schubert, Martin C.

    2016-09-01

    Identification of the lifetime limiting defects in silicon plays a key role in systematically optimizing the efficiency potential of material for solar cells. We present a technique based on temperature and injection dependent photoluminescence imaging to determine the energy levels and capture cross section ratios of Shockley-Read-Hall defects. This allows us to identify homogeneously and inhomogeneously distributed defects limiting the charge carrier lifetime in any silicon wafer. The technique is demonstrated on an n-type wafer grown with the non-contact crucible (NOC) method and an industrial Czochralski (Cz) wafer prone to defect formation during high temperature processing. We find that the energy levels for the circular distributed defects in the Cz wafer are in good agreement with literature data for homogeneously grown oxide precipitates. In contrast, the circular distributed defects found in NOC Si have significantly deeper trap levels, despite their similar appearance.

  3. Process design and simulation for optimizing the oxygen concentration in Czochralski-grown single-crystal silicon

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Y. J.; Kim, W. K.; Jung, J. H. [Yeungnam University, Gyeongsan (Korea, Republic of)

    2014-08-15

    The highest-concentration impurity in a single-crystal silicon ingot is oxygen, which infiltrates the ingot during growth stage. This oxygen adversely affects the wafer is quality. This study was aimed at finding an optimal design for the Czochralski (Cz) process to enable high-quality and low cost (by reducing power consumption) wafer production by controlling the oxygen concentration in the silicon ingots. In the Cz process, the characteristics of silicon ingots during crystallization are greatly influenced by the design and the configuration of the hot zone, and by crystallization rate. In order to identify process conditions for obtaining an optimal oxygen concentration of 11 - 13 ppma (required for industrial-grade ingots), designed two shield shapes for the hot zone. Furthermore, oxygen concentrations corresponding to these two shapes were compared by evaluating each shape at five different production speeds. In addition, simulations were performed to identify the optimal shield design for industrial applications.

  4. Visual evoked potentials and selective attention to points in space

    Science.gov (United States)

    Van Voorhis, S.; Hillyard, S. A.

    1977-01-01

    Visual evoked potentials (VEPs) were recorded to sequences of flashes delivered to the right and left visual fields while subjects responded promptly to designated stimuli in one field at a time (focused attention), in both fields at once (divided attention), or to neither field (passive). Three stimulus schedules were used: the first was a replication of a previous study (Eason, Harter, and White, 1969) where left- and right-field flashes were delivered quasi-independently, while in the other two the flashes were delivered to the two fields in random order (Bernoulli sequence). VEPs to attended-field stimuli were enhanced at both occipital (O2) and central (Cz) recording sites under all stimulus sequences, but different components were affected at the two scalp sites. It was suggested that the VEP at O2 may reflect modality-specific processing events, while the response at Cz, like its auditory homologue, may index more general aspects of selective attention.

  5. Dicty_cDB: SHJ450 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available .1 RPCI44_335H13.r RPCI-44 Sus scrofa genomic clone RPCI44_335H13, genomic survey sequence. 44 0.92 1 CL3536...10 |CL353610.1 RPCI44_403G22.r RPCI-44 Sus scrofa genomic clone RPCI44_403G22, genomic survey..._Ba0271M13.r OC__Ba Oryza coarctata genomic clone OC__Ba0271M13 3', genomic survey... sequence. 44 0.92 1 CZ860090 |CZ860090.1 OC__Ba0252O24.r OC__Ba Oryza coarctata genomic clone OC__Ba0252O24 3', genomic survey... clone OC__Ba0076F04 5', genomic survey sequence. 44 0.92 1 dna update 2006. 5.13 Homology vs Protein *****

  6. Performance of the INTPIX6 SOI pixel detector

    Science.gov (United States)

    Arai, Y.; Bugiel, Sz.; Dasgupta, R.; Idzik, M.; Kapusta, P.; Kucewicz, W.; Miyoshi, T.; Turala, M.

    2017-01-01

    Characterization of the monolithic pixel detector INPTIX6, designed at KEK and fabricated in Lapis 0.2 μ m Fully-Depleted, Low-Leakage Silicon-On-Insulator (SOI) CMOS technology, was performed. The INTPIX6 comprises a large area of 1408 × 896 integrating type squared pixels of 12 micron pitch. In this work the performance and measurement results of the prototypes produced on lower resistivity Czochralski type (CZ-n) and high resistivity floating zone (FZ-n) sensor wafers are presented. Using 241Am radioactive source the noise of INTPIX6 was measured, showing the ENC (Equivalent Noise Charge) of about 70 e-. The resolution calculated from the FWHM of the Iron-55 X-ray peak was about 100 e-. The radiation hardness of the SOI pixel detector was also investigated. The CZ-n type INTPIX6 received a dose of 60 krad and its performance has been continuously monitored during the irradiation.

  7. Medyczny aspekt legalizacji miękkich narkotyków – zagrożenie czy szansa na skuteczne leczenie?

    OpenAIRE

    Habib, Amalia

    2016-01-01

    Obecnie temat medycznego zastosowania marihuany poruszany jest publicznie częściej niż w ubiegłych latach. Najnowsze badania kliniczne potwierdzają leczniczy aspekt jej działania na organizm człowieka w walce z różnymi chorobami, które dotąd nie były możliwe do wyleczenia lub choćby do zmniejszenia ich wyniszczających skutków. Na świecie kolejne kraje dopuszczają obrót konopiami, albo całkowicie, albo jako quasi-legalizację. Polski system prawny nie dopuszcza obecnie wariantu l...

  8. Spread of the invasive ladybird Harmonia axyridis in the Czech Republic and Denmark

    DEFF Research Database (Denmark)

    Nedved, Oldrich; Steenberg, Tove; Harding, Susanne

    Spread of the invasive ladybird Harmonia axyridis in the Czech Republic and Denmark Oldřich Nedvěd1,2 and Tove Steenberg3 and SUSANNE HARDING4 1Faculty of Science, University of South Bohemia, and 2Institute of Entomology, Biology Centre; Branišovská 31, CZ370 05 České Budějovice, Czech Republic. 3......Faculty of Agricultural Sciences, University OF Aarhus, Skovbrynet 14, DK-2800 Kgs. Lyngby, Denmark 4 Faculty of Life Sciences, University of Copenhagen, Bülowsvej 13, DK - 1870 Frederiksberg C, Denmark nedved@prf.jcu.cz Introduction: Harmonia axyridis (Coleoptera: Coccinellidae) is an invasive alien...... that H. axyridis will continue to spread rapidly in Europe, particularly northwards and eastwards. Although there may consequently be a reduction in pest insects, our records support that this species may have significant detrimental impact. The records of the axyridis colour morph in the Czech Republic...

  9. Antibacterial activity of commercially available plant-derived essential oils against oral pathogenic bacteria.

    Science.gov (United States)

    Bardají, D K R; Reis, E B; Medeiros, T C T; Lucarini, R; Crotti, A E M; Martins, C H G

    2016-01-01

    This work investigated the antibacterial activity of 15 commercially available plant-derived essential oils (EOs) against a panel of oral pathogens. The broth microdilution method afforded the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) of the assayed EOs. The EO obtained from Cinnamomum zeylanicum (Lauraceae) (CZ-EO) displayed moderate activity against Fusobacterium nucleatum (MIC and MBC = 125 μg/mL), Actinomyces naeslundii (MIC and MBC = 125 μg/mL), Prevotella nigrescens (MIC and MBC = 125 μg/mL) and Streptococcus mutans (MIC = 200 μg/mL; MBC = 400 μg/mL). (Z)-isosafrole (85.3%) was the main chemical component of this oil. We did not detect cinnamaldehyde, previously described as the major constituent of CZ-EO, in specimens collected in other countries.

  10. Weaving independently generated photons into an arbitrary graph state

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Qing [College of Information Science and Engineering, Huaqiao University (Xiamen), Xiamen 361021 (China); He, Bing [University of California, Merced, 5200 North Lake Road, Merced, California 95343 (United States); Institute for Quantum Information Science, University of Calgary, Alberta T2N 1N4 (Canada)

    2011-12-15

    The controlled-Z (cz) operations acting separately on pairs of qubits are commonly adopted in the schemes of generating graph states, the multipartite entangled states for the one-way quantum computing. For this purpose, we propose a setup of cascade cz operation on a whole group of qubits in sequence. The operation of the setup starts with entangling an ancilla photon with the first photon as qubit, and this ancilla automatically moves from one entanglement link to another in assisting the formation of a string in graph states. The generation of some special types of graph states, such as the three-dimensional ones, can be greatly simplified in this approach. The setup presented uses weak nonlinearities, but an implementation using probabilistic linear optics is also possible.

  11. Down syndrome and hyperthyroidism - two case reports.

    Science.gov (United States)

    Szatkowska, Marta; Zimny, Dominika; Barg, Ewa

    2016-02-18

    Trisomia 21 pary chromosomów (Zespół Downa, DS) jest jednym z częściej występujących zaburzeń chromosomalnych w praktyce pediatrycznej. Zaburzenia funkcji tarczycy często występują u tych pacjentów. Niedoczynność tarczycy jest rozpoznawana u blisko 50% pacjentów z ZD, a liczba ta wzrasta wraz z wiekiem. Nadczynność tarczycy jest rozpoznawana znaczniej rzadziej u dzieci z ZD. Odpowiednia strategia leczenia nadczynności tarczycy jest bardzo istotna ze względu na możliwość zaburzenia rozwoju dzieci. Przedstawiamy dwa przypadki dzieci z zespołem Downa i nadczynnością tarczycy. Proces leczenia tych pacjentów był odmienny.

  12. Esferas (beads de alginato como agente encapsulante de óleo de croton zehntneri Pax et Hoffm ALG/Ca beads as an encapsulation agent of croton zehntneri Pax et Hoffm essential oil

    Directory of Open Access Journals (Sweden)

    Haroldo C. B. de Paula

    2010-06-01

    Full Text Available Esferas de alginato (ALG reticuladas com cálcio e revestidas com goma do cajueiro (GC foram preparadas e dopadas com óleo essencial de Croton zehntneri Pax et Hoffm (Cz, visando a seu emprego como larvicida para combate ao vetor da dengue. As esferas foram caracterizadas estruturalmente por espectroscopia de infravermelho, análise térmica, microscopia eletrônica de varredura e em relação aos seus parâmetros de transporte líquido, dopagem, embebição (Q e cinética de liberação in vitro e in vivo. Os resultados revelaram que as esferas possuem morfologia com uma alta regularidade esférica, com superfície porosa. A matriz ALG:Cz =1:1 apresentou maior dopagem e eficiência de encapsulamento e valores de Q entre 10 e 12. O perfil de liberação do óleo encapsulado apresentou-se mais prolongado nas esferas contendo goma do cajueiro, ALG-GC:Cz =1:1. A taxa de mortalidade de larvas de Stegomyia aegypti para teores de 1,81 a 4,25 mg de óleo nas esferas resultou em valores na faixa de 72 a 100%, após 24 h. A matriz polimérica mostrou-se efetiva para proteção do principio ativo até cerca de 70 dias, com perdas da ordem de 35%. A análise térmica revelou que a incorporação de Cz e GC resulta em uma matriz polimérica termicamente mais estável.Alginate beads (ALG crosslinked with calcium and coated with cashew gum (GC were prepared and loaded with an essential oil from Croton zehntneri Pax et Hoffm (Cz. The beads were characterized by FTIR, thermal properties, with respect to their size, shape, larvicide loading, swelling, and in vitro and in vivo release kinetics. Results showed that beads with ALG:Cz =1:1 relative ratio showed higher loading and encapsulation efficiency, although presenting a faster release kinetics. On the other hand, ALG beads coated with GC showed Q values from 10 to 12, representing a significant increase in the hydrophilic character of the matrix. Infrared spectroscopy and thermal analysis confirmed the

  13. Synthesis and properties of a star-shaped organic material with triphenylamine and N-vinyl carbazole units

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    A starburst triphenylamine cored N-vinyl carbazole (V-Cz) branched compound was designed and synthesized via optimized Heck reaction in a yield of 40-60%. Moderate yield came from decomposition of V-Cz and self-coupling of triiodo-triphenylamine.TCz-TPA adopts a highly twisted propeller conformation by molecular mechanical optimization. It is readily soluble for its highly twisted conformation. Transparent and pinhole free films could be easily fabricated by spin-coating for its starburst structure. It emits blue-greenish light in CH2Cl2 peaked at 460 nm with a narrow full-width at half-maximum (FWHM) of 65 nm. As compared,the absorption peaks of the spin-coated film blue shifted and emission peak red shifted to 510 nm with a FWHM of 96 nm.

  14. Chemo- and Regioselective Organo-Photoredox Catalyzed Hydroformylation of Styrenes via a Radical Pathway.

    Science.gov (United States)

    Huang, He; Yu, Chenguang; Zhang, Yueteng; Zhang, Yongqiang; Mariano, Patrick S; Wang, Wei

    2017-07-26

    An unprecedented, chemo- and regioselective, organo-photoredox catalyzed hydroformylation reaction of aryl olefins with diethoxyacetic acid as the formylation reagent is described. In contrast to traditional transition metal promoted ionic hydroformylation reactions, the new process follows a unique photoredox promoted, free radical pathway. In this process, a formyl radical equivalent, produced from diethoxacetic acid through a dye (4CzIPN) photocatalyzed, sequential oxidation-decarboxylation route, regio- and chemoselectively adds to a styrene substrate. Importantly, under the optimized reaction conditions the benzylic radical formed in this manner is reduced by SET from the anion radical of 4CzIPN to generate a benzylic anion. Finally, protonation produces the hydroformylation product. By using the new protocol, aldehydes can be generated regioselectively in up to 90% yield. A broad array of functional groups is tolerated in the process, which takes place under mild, metal-free conditions.

  15. Optimization of energy extraction in transverse galloping

    Science.gov (United States)

    Sorribes-Palmer, F.; Sanz-Andres, A.

    2013-11-01

    A numerical method to analyse the stability of transverse galloping based on experimental measurements, as an alternative method to polynomial fitting of the transverse force coefficient Cz, is proposed in this paper. The Glauert-Den Hartog criterion is used to determine the region of angles of attack (pitch angles) prone to present galloping. An analytic solution (based on a polynomial curve of Cz) is used to validate the method and to evaluate the discretization errors. Several bodies (of biconvex, D-shape and rhomboidal cross sections) have been tested in a wind tunnel and the stability of the galloping region has been analysed with the new method. An algorithm to determine the pitch angle of the body that allows the maximum value of the kinetic energy of the flow to be extracted is presented.

  16. Repair bond strength of resin composite to a novel CAD/CAM hybrid ceramic using different repair systems.

    Science.gov (United States)

    Elsaka, Shaymaa E

    2015-01-01

    This study evaluated the repair bond strength of a nanohybrid resin composite to a novel CAD/CAM hybrid ceramic based on four intraoral ceramic repair systems. Vita Enamic (VE) CAD/CAM hybrid ceramic was used in this study. Specimens were divided into five test groups according to the repair method performed on the ceramic surface: Gr C (No treatment; control); Gr CZ (Cimara Zircon); Gr PR (Porcelain Repair); Gr CR (Clearfil Repair); and Gr CS (CoJet system). Nanohybrid resin composite (GrandioSO) was packed onto treated ceramic surfaces for adhesion testing using microtensile bond strength test. Debonded specimens were examined with a stereomicroscope and SEM to determine the fracture mode. Data were analyzed using ANOVA and Tukey's HSD test. PR and CZ repair systems significantly enhanced the bond strength of nanohybrid resin composite to VE CAD/CAM hybrid ceramic when compared with the other tested repair systems.

  17. Surface electronic structure and molecular orientation of poly(9-vinylcarbazole) thin film: ARUPS and NEXAFS

    CERN Document Server

    Okudaira, K K; Hasegawa, S; Ishii, H; Azuma, Y; Imamura, M; Shimada, H; Seki, K; Ueno, N

    2001-01-01

    The molecular orientation at the surfaces of poly(9-vinylcarbazole) (PvCz) thin films was studied by angle-resolved ultraviolet photoelectron spectroscopy and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. The observed take-off angle (theta) dependence of photoelectron intensities from top pi band peaks clearly at larger theta than the calculated one for the three-dimensional isotropic random orientation model. The results indicate that there are more pendant groups with large tilt angles than the three-dimensional isotropic random orientation model, which is in good agreement with the result obtained from NEXAFS spectroscopy. The surface electronic states of PvCz may be rather dominated by sigma(C-H) states at the pendant carbazole group than pi states

  18. Ocena jakości obsługi klienta w procesie kształtowania jego satysfakcji

    OpenAIRE

    2012-01-01

    Celem pracy jest analiza wybranych sposobów oceny jakości obsługi klienta w procesie kształtowania jego satysfakcji. W pracy skupiono się na istocie i zastosowaniu mystery shopping. W części teoretycznej pracy zostały przedstawione wybrane zagadnienia z zakresu marketingu usług, satysfakcji klienta, standardów obsługi klienta, a także metodologia badań satysfakcji klienta. W części praktycznej pracy znajduje się opis badania jakości obsługi klientów ING Banku Śląskiego, kt...

  19. Alterações na distribuição de potência cortical em função da consolidação da memória no aprendizado de datilografia Changes in cortical power distribution produced by memory consolidation as a function of a typewriting skill

    Directory of Open Access Journals (Sweden)

    Marlo Cunha

    2004-09-01

    Full Text Available O objetivo do presente estudo foi investigar alterações nos padrões eletroencefalográficos de sujeitos normais e destros durante o aprendizado de uma tarefa motora (datilografia. Estudos têm demonstrado que o córtex cerebral é susceptível a modificações durante a aprendizagem e que alterações nos padrões elétricos corticais ocorrem em função da aquisição de uma habilidade motora e da consolidação da memória. Assim, a atividade elétrica cortical dos sujeitos foi analisada antes e depois da prática motora. Os dados foram captados pelo "Braintech" 3000 e analisados pelo programa "Neurometrics". Para a análise estatística, variáveis comportamentais tais como tempo e erro, foram analisadas através do teste ANOVA "one-way" (diferenças entre blocos. Em seguida, foi utilizado um Teste-t pareado para os pares de eletrodos CZ-C3/CZ-C4, nas bandas de freqüência teta e alfa. Os resultados principais demonstraram mudança na performance através das variáveis comportamentais "tempo" e "número de erros". Concomitantemente, não foram observadas alterações na variável neurofisiológica "Potência Absoluta" na banda teta. Em contrapartida, houve um aumento significativo na banda alfa em áreas centrais (CZ-C3/CZ-C4. Tais resultados sugerem uma adaptação do córtex sensório-motor em função do treinamento de datilografia.The present study aimed to investigate alterations in EEG patterns in normal, right-handed individuals, during the process of learning a specific motor skill (typewriting. Recent studies have shown that the cerebral cortex is susceptible to several changes during a learning process and that alterations in the brain's electrical patterns take place as a result of the acquisition of a motor skill and memory consolidation. In this context, subjects' brain electrical activity was analyzed before and after the motor task. EEG data were collected by a Braintech 3000 and analyzed by Neurometrics. For the

  20. Electron beam silicon purification

    Energy Technology Data Exchange (ETDEWEB)

    Kravtsov, Anatoly [SIA ' ' KEPP EU' ' , Riga (Latvia); Kravtsov, Alexey [' ' KEPP-service' ' Ltd., Moscow (Russian Federation)

    2014-11-15

    Purification of heavily doped electronic grade silicon by evaporation of N-type impurities with electron beam heating was investigated in process with a batch weight up to 50 kilos. Effective temperature of the melt, an indicative parameter suitable for purification process characterization was calculated and appeared to be stable for different load weight processes. Purified material was successfully approbated in standard CZ processes of three different companies. Each company used its standard process and obtained CZ monocrystals applicable for photovoltaic application. These facts enable process to be successfully scaled up to commercial volumes (150-300 kg) and yield solar grade silicon. (copyright 2014 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  1. Process for production of wood charcoal from fine-particle lignocellulose wastes and installation for its accomplishment

    Energy Technology Data Exchange (ETDEWEB)

    Babicki, R.; Perzynski, B.

    1979-05-15

    For producing wood charcoal from sawdust, shells of nuts, and other lignin-containing wastes by drying, roasting, and cooling the obtainable carbon, a multizone kiln is used, consisting of zones for drying (DZ), low-temperature carbonization (SCZ), and cooling (CZ), each of which is divided by racks into two parts. Between the zones racks having openings for feedstock charging are also arranged. In the SCZ, air nozzles are mounted, above which there is a ceramic screen. Waste gases from the SCZ and CZ pass through the heat exchanger-afterburner and are admitted into the condenser, whence they are released into the atmosphere. The temperature in the DZ is 120-60/sup 0/, and in the SCZ -- 400-600/sup 0/.

  2. Populism in the first European elections in the Czech Republic

    Directory of Open Access Journals (Sweden)

    Markéta Pitrová

    2007-03-01

    Full Text Available The paper seeks to examine the phenomenon of populism in connection with the first EP elections in the Czech Republic (CZ. It aspires to answer the question whether the first EP elections can be described as populist and, if yes, then owing to which parties. It gives a basic overview of the electoral system, the actors involved and the voter turnout. It attempts to define populism and distinguish it from euroscepticism. The paper’s key focal point is then the application of the identified attributes of populism on those political parties that received more than 1 % of the vote. The findings lead to the rejection of the assertion about a populist character of the EP elections in the CZ, and a classification of individual actors is suggested.

  3. speciation through asexuality in fish: postzygotic reproductive isolation may be completed in spite of fertility of hybrids

    Directory of Open Access Journals (Sweden)

    Karel Janko

    2015-12-01

    Altogether, it appears that initiation of hybrid asexuality and the completion of speciation process through formation of postRIMs are interconnected phenomena. Both processes are linked to the genetic divergence of hybridizing taxa: initially, hybridization between little diverged species leads to recombinant and fertile hybrids allowing intensive gene flow. As the hybridizing taxa continue to diverge, clonally reproducing hybrid females and sterile males become dominant and the gene flow ceases. The speciation may therefore be completed through asexuality of hybrids The work was supported by grant no. 13-12580S provided by the Czech Science Foundation (www.gacr.cz. Further support was provided by the Academy of Sciences of the Czech Republic (www.cas.cz by the grant no. RVO 67985904

  4. MOLEonline 2.0: interactive web-based analysis of biomacromolecular channels.

    Science.gov (United States)

    Berka, Karel; Hanák, Ondrej; Sehnal, David; Banás, Pavel; Navrátilová, Veronika; Jaiswal, Deepti; Ionescu, Crina-Maria; Svobodová Vareková, Radka; Koca, Jaroslav; Otyepka, Michal

    2012-07-01

    Biomolecular channels play important roles in many biological systems, e.g. enzymes, ribosomes and ion channels. This article introduces a web-based interactive MOLEonline 2.0 application for the analysis of access/egress paths to interior molecular voids. MOLEonline 2.0 enables platform-independent, easy-to-use and interactive analyses of (bio)macromolecular channels, tunnels and pores. Results are presented in a clear manner, making their interpretation easy. For each channel, MOLEonline displays a 3D graphical representation of the channel, its profile accompanied by a list of lining residues and also its basic physicochemical properties. The users can tune advanced parameters when performing a channel search to direct the search according to their needs. The MOLEonline 2.0 application is freely available via the Internet at http://ncbr.muni.cz/mole or http://mole.upol.cz.

  5. A LARGE CLASS OF BINARY ZCZ SEQUENCE FAMILIES CONSTRUCTED BY PERIOD DOUBLING

    Institute of Scientific and Technical Information of China (English)

    Wang Jinsong; Qi Wenfeng

    2007-01-01

    In an Approximately Synchronized Code Division Multiple Access(AS-CDMA)communication svstem,a family with large number of Zero Correlation Zone(ZCZ)sequences is desired,which can satisfy the rapid increase of users.This paper presents a method to generate a(2L,2M,Z'cz)-ZCZ sequence family from an original(L,M,Zcz)-ZCZ sequence family,where Z'cz=Zcz if Zcz is even and Z'cz=Zcz-1 if Zcz is odd.This method can also recursively act on a ZCZ sequence family to construct a series of ZCZ sequence families with large sequence nutuber and zero correlation zone length identical to or one less than that of original ZCZ sequences.

  6. SKUTKI FINANSOWE DECYZJI PRZEDSIĘBIORSTWA ŚWIETLE RACHUNKOWOŚCI TRZECH SOCZEWEK (AUTORSKIE PODEJŚCIE METODOLOGICZNE)

    OpenAIRE

    Józefa Famielec

    2016-01-01

    Hipoteza badawcza artykułu zakłada, że rachunkowość jest wykorzystywana w niewielkim stopniu do wypracowywania w jednostce optymalnych decyzji. Taki rachunek jak, przepływy pieniężne netto, czy też przepływy pieniężne działalności inwestycyjnej, stanowią często tylko biurokratyczny załącznik do wniosków o finansowanie czy też o pomoc publiczną. Jednostki nie mają przekonania co do ich przydatności a często i wiedzy merytorycznej dla ich interpretacji oraz reakcji na ustalane wielkości i w...

  7. The Intuitive Manager and the Concept of Strategic Leadership

    Directory of Open Access Journals (Sweden)

    Malewska Kamila

    2014-12-01

    Full Text Available Celem referatu jest przedstawienie spójności między cechami i umiejętnościami intuicyjnego menedżera a atrybutami strategicznego przywódcy. Referat składa się z trzech zasadniczych części. W pierwszej kolejności zaprezentowano istotę i ewolucję koncepcji przywództwa oraz zestawiono role strategicznego przywódcy z wymogami funkcjonowania współczesnych organizacji. Następnie podjęto próbę zdefi niowania pojęcia intuicji oraz scharakteryzowania intuicyjnego menedżera. W ostatniej części referatu poddano analizie atrybuty strategicznego przywódcy oraz cechy i umiejętności intuicyjnego menedżera w celu ukazania zbieżności między tymi kategoriami

  8. On Stability and Trajectory Boundedness in Mean-square Sense for ARMA Processes

    Institute of Scientific and Technical Information of China (English)

    Han-Fu Chen

    2003-01-01

    For the multidimensional ARMA system A(z)yk = C(z)wk it is shown that stability (det A(z) ≠0, ∨z: |z| ≤ 1) of A(z) is equivalent to the trajectory boundedness in the mean square sense (MSS)lim supn→∞1/nn∑k=1 ||yk||2 <∞ a.s.,which, as a rule, is a consequence of a successful stochastic adaptive control leading the closed-loop of an ARMAX system to a steady state ARMA system. In comparison with existing results the stability condition imposed on C(z) is no longer needed. The only structural requirement on the system is that det A(z) and det C(z) have no unstable common factor.

  9. Solar cells on low-resistivity boron-doped Czochralski-grown silicon with stabilized efficiencies of 20%

    Science.gov (United States)

    Lim, Bianca; Hermann, Sonja; Bothe, Karsten; Schmidt, Jan; Brendel, Rolf

    2008-10-01

    Recently, it was shown that the boron-oxygen complex responsible for the light-induced lifetime degradation in oxygen-rich boron-doped silicon can be permanently deactivated by illumination at elevated temperatures. Since the degradation is particularly harmful in low-resistivity Czochralski silicon (Cz-Si), we apply the deactivation procedure to a high-efficiency rear interdigitated single evaporation emitter wrap-through solar cell made on 1.4Ωcm B-doped Cz-Si. The energy conversion efficiency is thereby increased by more than 1% absolute compared to the degraded state to 20.3% on a designated area of 92cm2 and is furthermore shown to be stable under illumination at room temperature.

  10. Industrial n-type solar cells with >20% cell efficiency

    Energy Technology Data Exchange (ETDEWEB)

    Romijn, I.G.; Anker, J.; Burgers, A.R.; Gutjahr, A.; Koppes, M.; Kossen, E.J.; Lamers, M.W.P.E.; Heurtault, Benoit; Saynova-Oosterling, D.S.; Tool, C.J.J. [ECN Solar Energy, Petten (Netherlands)

    2013-03-15

    To realize high efficiencies at low costs, ECN has developed the n-Pasha solar cell concept. The n-Pasha cell concept is a bifacial solar cell concept on n-Cz base material, with which average efficiencies of above 20% have been demonstrated. In this paper recent developments at ECN to improve the cost of ownership (lower Euro/Wp) of the n-Pasha cell concept are discussed. Two main drivers for the manufacturing costs of n-type solar cells are addressed: the n-type Cz silicon material and the silver consumption. We show that a large resistivity range between 2 and 8 cm can be tolerated for high cell efficiency, and that the costs due to the silver metallization can be significantly reduced while increasing the solar cell efficiency. Combining the improved efficiency and cost reduction makes the n-Pasha cell concept a very cost effective solution to manufacture high efficient solar cells and modules.

  11. Magnetic spots on hot massive stars

    CERN Document Server

    Cantiello, Matteo

    2011-01-01

    Hot luminous stars show a variety of phenomena in their photospheres and winds which still lack clear physical explanation. Among these phenomena are photospheric turbulence, line profile variability (LPV), non-thermal emission, non-radial pulsations, discrete absorption components (DACs) and wind clumping. Cantiello et al. (2009) argued that a convection zone close to the stellar surface could be responsible for some of these phenomena. This convective zone is caused by a peak in the opacity associated with iron-group elements and is referred to as the "iron convection zone" (FeCZ). Assuming dynamo action producing magnetic fields at equipartition in the FeCZ, we investigate the occurrence of subsurface magnetism in OB stars. Then we study the surface emergence of these magnetic fields and discuss possible observational signatures of magnetic spots. Simple estimates are made using the subsurface properties of massive stars, as calculated in 1D stellar evolution models. We find that magnetic fields of suffici...

  12. Analysis of Dissimilar Material Defect Based on Eddy Current Conductivity Testing

    Science.gov (United States)

    Zhang, Xiaofan; Li, Lifu

    In this experiment, the conductivity distribution of lack of penetration (LOP) in friction stir welding (FSW) of dissimilar materials has been tested, and has been compared with the conductivity distribution of the same kind of material, by using eddy current conductivity meter. CZ state and M state LY12 aluminum alloy has been studied. The results show that when the depth of LOP is small, the conductivity of M state is the highest, the conductivity decreases gradually to the weld center, reduce to the minimum until reach the CZ state base metal. When the depth of LOP is larger, the conductivity of the weld center decreases sharply with the depth of LOP increases gradually. Scilicet, the larger the depth of LOP, the lower the conductivity. The conductivity distribution of other areas is similar to the distribution when the depth of LOP is small.

  13. Narrow bandgap host material for high quantum efficiency yellow phosphorescent organic light-emitting diodes doped with iridium(III) bis(4-phenylthieno[3,2-c]pyridine)acetylacetonate

    Energy Technology Data Exchange (ETDEWEB)

    Yook, Kyoung Soo; Lee, Jun Yeob, E-mail: leej17@skku.edu

    2015-05-15

    A narrow bandgap host material, 4,5-di(9H-carbazol-9-yl)phthalonitrile (2CzPN), was used as a bipolar host material to improve the device performances of yellow phosphorescent organic light-emitting diodes(PHOLEDs). The device performances of the yellow PHOLEDs were optimized at a low doping concentration of 1%. A low turn-on voltage of 3.0 V and high quantum efficiency of 19.3% were achieved using the 2CzPN host material and no efficiency roll-off of the device was observed up to 1000 cd/m{sup 2} compared with 25% of reference device. - Highlights: • High quantum efficiency in yellow phosphorescent organic light-emitting diodes. • Narrow bandgap host material with donor–acceptor structure for low driving voltage. • Low optimum doping concentration of 1% for high quantum efficiency and power efficiency.

  14. Topically applied methotrexate is rapidly delivered into skin by fractional laser ablation

    DEFF Research Database (Denmark)

    Taudorf, Elisabeth Hjardem; Lerche, Catharina; Vissing, Anne-Cathrine

    2015-01-01

    Objectives: Methotrexate (MTX) is a chemotherapeutic and anti-inflammatory drug that may cause systemic adverse effects. This study investigated kinetics and biodistribution of MTX delivered topically by ablative fractional laser (AFXL). Methods: In vitro passive diffusion of 10 mg/ml MTX (1 w...... of 690 µm ablation depth, lined by the 47 µm thermal coagulation zone (CZ). Quantitatively, MTX was detectable by HPLC in mid-dermis after 15 min, significantly exceeded deposition in intact skin after 1.5 h, and saturated skin after 7 h at a 10-fold increased MTX-deposition versus intact skin (3.08 vs 0.......30 mg/cm3, p = 0.002). Transdermal permeation was saturation, and increased up to 8.0% after 24 h. Qualitatively, MTX distributed into CZ within 15 min (p = 0.015) and further into surrounding dermal tissue after 1.5 h (p = 0.004). After skin saturation at 7 h, MTX...

  15. Robust and High Fidelity Quantum Logic with the Rydberg-Dressed Blockade

    Science.gov (United States)

    Keating, Tyler; Cook, Robert; Deutsch, Ivan; Hankin, Aaron; Jau, Yuan-Yu; Biedermann, Grant

    2015-05-01

    We study a scheme for implementing a controlled-Z (CZ) gate between two neutral-atom qubits based on the Rydberg blockade mechanism in a manner that is robust to errors caused by atomic motion. By adiabatically dressing the ground electronic state, we can protect the gate from decoherence due to random phase errors that typically arise from atomic thermal motion. The adiabatic protocol also allows for a Doppler-free configuration with counterpropagating lasers in a σ+ /σ- orthogonal polarization geometry that further reduces motional errors due to Doppler shifts. The residual error is dominated by dipole-dipole forces acting on doubly-excited Rydberg atoms when the blockade is imperfect. For reasonable parameters, with qubits encoded into the clock states of 133Cs, we predict that our protocol could produce a CZ gate in logic.

  16. Robust quantum logic in neutral atoms via adiabatic Rydberg dressing

    Science.gov (United States)

    Keating, Tyler; Cook, Robert L.; Hankin, Aaron M.; Jau, Yuan-Yu; Biedermann, Grant W.; Deutsch, Ivan H.

    2015-01-01

    We study a scheme for implementing a controlled-Z (cz) gate between two neutral-atom qubits based on the Rydberg blockade mechanism in a manner that is robust to errors caused by atomic motion. By employing adiabatic dressing of the ground electronic state, we can protect the gate from decoherence due to random phase errors that typically arise because of atomic thermal motion. In addition, the adiabatic protocol allows for a Doppler-free configuration that involves counterpropagating lasers in a σ+/σ- orthogonal polarization geometry that further reduces motional errors due to Doppler shifts. The residual motional error is dominated by dipole-dipole forces acting on doubly excited Rydberg atoms when the blockade is imperfect. For reasonable parameters, with qubits encoded into the clock states of 133Cs, we predict that our protocol could produce a cz gate in <10 μ s with error probability on the order of 10-3.

  17. Dicty_cDB: Contig-U14711-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available ... 52 0.030 3 ( DY383037 ) CL__Ea0001H22.r CL__Ea Curcuma longa cDNA clone C... 40 0.041 2 ( CZ539777 ) SRA...48248 ) Otolemur garnettii clone CH256-113E5, WORKING DRA... 52 0.051 1 ( DY392100 ) CL__Eb0006G18.r CL__Eb Curcuma

  18. Nowe zasady działalności firm audytorskich

    Directory of Open Access Journals (Sweden)

    Kazimierz Sawicki

    2009-03-01

    Full Text Available W artykule przedstawiono zmiany, stanowiące implementację Dyrektywy 2006/43/WE Unii Europejskiej w części dotyczącej funkcjonowania firm audytorskich w Polsce. Zgłoszono uwagi popierające nowe rozwiązania, jak też zawierające wątpliwości dotyczące skuteczności ich stosowania w praktyce.

  19. MesonNet 2013 International Workshop : Mini-proceedings

    CERN Document Server

    Kupsc, A; Masjuan, P

    2013-01-01

    The mini-proceedings of the MesonNet 2013 International Workshop held in Prague from June 17th to 19th, 2013, are presented. MesonNet is a research network within EU HadronPhysics3 project (1/2012 -- 12/2014). The web page of the conference, which contains all talks, can be found at http://ipnp.mff.cuni.cz/mesonnet13.

  20. Differential Pulse Anodic Stripping Voltammetry for Mercury Determination

    OpenAIRE

    2015-01-01

    In the present work voltammetric investigations have been performed on HgCl2 aqueous solutions prepared from a Cz 9024 reagent. Carbon paste electrode (CPE), eriochrome black T modified carbon paste electrode (MCPE/EBT) and KCl 1M as background electrolyte, were involved within the experimental procedures. Cyclic voltammetry (CV) has been performed in order to compare the behaviour of the two electrodes in both K3[Fe(CN)6] and mercury calibration aqueous solution. Differential pulse anodic st...

  1. Moderní nástroje marketingové komunikace a jejich použití konkrétním internetovým obchodem

    OpenAIRE

    Jochimová, Natálie

    2016-01-01

    This Master´s thesis entitled Modern marketing communication tools and their use of a particular online store dedicated to modern methods of promotion on the Internet market of fashion in the Czech Republic, namely the largest of these deals ZOOT.cz. The aim of the work is based on quantitative and qualitative research to evaluate the use of modern tools of marketing communication in the example mentioned internet business when compared with other entities. The theoretical part of this thesis...

  2. Growth and scintillation properties of 3 in. diameter Ce doped Gd3Ga3Al2O12 scintillation single crystal

    Science.gov (United States)

    Kamada, Kei; Shoji, Yasuhiro; Kochurikhin, Vladimir V.; Okumura, Satoshi; Yamamoto, Seiichi; Nagura, Aya; Yeom, Jung Yeol; Kurosawa, Shunsuke; Yokota, Yuui; Ohashi, Yuji; Nikl, Martin; Yoshikawa, Akira

    2016-10-01

    The 3 in. size Ce1%:Gd3Al2Ga3O12 single crystals were prepared by the Czochralski (Cz) method. Optical constants were measured. Chemical composition analysis and uniformity of scintillation decay and light yield along growth direction were evaluated. The timing resolution measurement for a pair of 3 mm×3 mm×3 mm size Ce:GAGG scintillator crystals was performed using Si-PMs.

  3. E-Commerce

    OpenAIRE

    Kubička, Tomáš

    2013-01-01

    Diploma thesis "E-commerce" aimed to create a suitable solution for marketing mix of the e-shop Levneelektro.cz. Based on performed analyzes I concluded that improvement of a communication with customers is very important for company ELEKTRA PV. I found that a crucial step for maintenance of competitiveness is the foundation of a loyalty program which is responsible for keeping customer loyalty. I have designed two different solutions of the loyalty program that are appropriate for the company.

  4. Novel, Post-Stall, Thrust-Vectored F-15 RPVs: Laboratory and Flight Tests

    Science.gov (United States)

    1990-04-24

    probe and aipha/ betta probes PCM receiver 2 accelerometers for alpha & hetta aooeleration 0n-hoard oomputer1 in relation to the 5 asoeleremeters at e.g...Fig. 7e 7he betta probe (up), the alpha probe (center) and the velocity probe (see also Fig. 4). -23- 0O.r6.0.AO(1N-O I, 8co C)z CC a: ;mi 00 cla: - 24

  5. Advantage in solar cell efficiency of high-quality seed cast mono Si ingot

    Science.gov (United States)

    Miyamura, Yoshiji; Harada, Hirofumi; Jiptner, Karolin; Nakano, Satoshi; Gao, Bing; Kakimoto, Koichi; Nakamura, Kyotaro; Ohshita, Yoshio; Ogura, Atsushi; Sugawara, Shin; Sekiguchi, Takashi

    2015-06-01

    We have grown 50 cm2 mono Si ingots by the seed cast technique. The carbon and oxygen concentrations of the ingots have been significantly reduced by improving the gas flow condition and coating. The dislocation density was also reduced by eliminating the extra dislocation generation sources. Owing to these developments, the lifetime of wafers has reached 465 µs. Finally, the efficiency of 18.7% has been achieved, which is comparable to 18.9% of the reference Czochralski (CZ) Si wafer.

  6. Extended defects in Si wafers implanted with ions of rare-earth elements

    Energy Technology Data Exchange (ETDEWEB)

    Vdovin, V.I. E-mail: icpm@mail.girmet.ru; Yugova, T.G.; Sobolev, N.A.; Shek, E.I.; Makovijchuk, M.I.; Parshin, E.O

    1999-01-01

    Structural defects arising in Cz-Si wafers after implantation with high-energy ions of rare-earth elements (Er, Ho, Dy) and annealing in a chlorine-containing ambience were studied by transmission electron microscopy and chemical etching/Nomarski microscopy. Regularities of extended defect formation in dependence on implant and annealing conditions as well as evolution of structural defect patterns during thermal annealing have been established.

  7. An attempt to correlate surface physics with chemical properties: molecular beam and Kelvin probe investigations of Ce1-xZrxO2 thin films.

    Science.gov (United States)

    Kolekar, Sadhu K; Dubey, Anjani; Date, Kalyani S; Datar, Suwarna; Gopinath, Chinnakonda S

    2016-10-05

    What is the correlation between physical properties of the surfaces (such as surface potential, electronic nature of the surface), and chemical and catalysis properties (such as chemisorption, sticking probability of surface)? An attempt has been made to explore any correlation that might exist between the physical and chemical properties of thin film surfaces. Kelvin probe microscopy (KPM) and the molecular beam (MB) methods were employed to carry out the surface potential, and oxygen adsorption and oxygen storage capacity (OSC) measurements on Ce1-xZrxO2 thin films. A sol-gel synthesis procedure and spin-coating deposition method have been applied to make continuous nanocrystalline Ce1-xZrxO2 (x = 0-1) (CZ) thin films with uniform thickness (35-50 nm); however, surface roughness and porosity inherently changes with CZ composition. MB studies of O2 adsorption on CZ reveal high OSC for Ce0.9Zr0.1O2, which also exhibits highly porous and significantly rough surface characteristics. The surface potential observed from KPM studies varied between 30 and 80 mV, with Ce-rich compositions exhibiting the highest surface potential. Surface potential shows large changes after reduction or oxidation of the CZ film demonstrating the influence of Ce(3+)/Ce(4+) on surface potential, which is also a key to catalytic activity for ceria-based catalysts. The surface potential measured from KPM and the OSC measured from MB vary linearly and they depend on the Ce(3+)/Ce(4+) ratio. More and detailed studies are suggested to arrive at a correlation between the physical and chemical properties of the surfaces.

  8. MRI to predict prostate growth and development in children, adolescents and young adults

    Energy Technology Data Exchange (ETDEWEB)

    Ren, Jing; Liu, Huijia; Wen, Didi; Huang, Xufang; Ren, Fang; Huan, Yi [Fourth Military Medical University, Department of Radiology, Xijing Hospital, Xi' an City (China); Wang, He [Fourth Military Medical University, Department of Urology, Tangdu Hospital, Xi' an City (China)

    2014-08-06

    The purpose of this study was to investigate the use of MRI in predicting prostate growth and development. A total of 1,500 healthy male volunteers who underwent MRI of the pelvis were included in this prospective study. Subjects were divided into five groups according to age (group A, 2-5 years; group B, 6-10 years; group C, 11-15 years; group D, 16-20 years; group E, 21-25 years). Total prostate volume (TPV) as well as prostate central zone (CZ) and peripheral zone (PZ) were measured and evaluated on MRI. Data of the different groups were compared using variance analysis, Scheffe's method, Kruskal-Wallis H-test, and Pearson's correlation. Statistical significance was inferred at P < 0.05. In groups A and B, the prostates were barely visible. In group C, although TPV was measured, it was hard to distinguish CZ and PZ. In group D, 136 CZ and PZ were clearly visible. In group E, 377 CZ and PZ were clearly visible on T2-weighted imaging (T2WI). The median TPVs of groups A, B, C, D, and E were 0.00 cm{sup 3}, 0.05 cm{sup 3}, 2.83 cm{sup 3}, 8.32 cm{sup 3,} and 11.56 cm{sup 3}, respectively, and the median prostate development scores were 0.08, 0.69, 1.56, 2.38, and 2.74, respectively. Both TPVs and zonal anatomy scores varied significantly among the five groups (P = 0.000). TPV and zonal anatomy score increased with increasing age. MRI provides a reliable quantitative reference for prostate growth and development. (orig.)

  9. Dicty_cDB: Contig-U06833-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 1 ( CZ509053 ) GMW2-63N3a.b1 GMW2 Glycine max genomic, genomic s... 44 5.8 1 ( EE299190 ) SA_RG0_22c06_SP6 Dogfish Shark..... 44 5.8 1 ( EC945442 ) WIN0534.C21_N01 Cab Sauv flower, leaf and root no... 44 5.8 1 ( DV498868 ) Sa_em0_09p16_5prime Dogfish Shark

  10. Coring the deep critical zone in the Jemez River Basin Critical Zone Observatory, Valles Caldera National Preserve, Northern New Mexico

    Science.gov (United States)

    Moravec, B. G.; White, A. M.; Paras, B.; Sanchez, A.; McGuffy, C.; Fairbanks, D.; McIntosh, J. C.; Pelletier, J. D.; Gallery, R. E.; Rasmussen, C.; Carr, B.; Holbrook, W. S.; Chorover, J.

    2016-12-01

    The Critical Zone (CZ) is the focus of current interdisciplinary Earth surface science research that aims to describe the interactions between geological and biological processes that influence ecosystem function, soil formation, nutrient and carbon cycling, hydrologic partitioning, biological activity and diversity, and mineral weathering. Prior research at the Catalina-Jemez (C-J) CZO has focused on the CZ near-surface, including remote sensing, and sampling/analysis of vegetation and soil microbiota, soils and saprolite, and surface water. However, the extent to which weathering, water/rock interaction, and solute mobility along flowpaths in the deep CZ respond to near surface CZ processes (i.e. water, energy, and mass fluxes) is not well understood. The goal of the present research is to understand depth-dependent trends in weathering dynamics from the mobile soil to unweathered bedrock in relation to landscape position (hillslope aspect and downgradient hollow). We used diamond core drilling techniques to excavate three boreholes to depths of 18.9, 41.8, and 46.3 meters in an instrumented forested sub-catchment of the C-J CZO in northern New Mexico. Here we present field methodology and preliminary data collected during the field campaign conducted during summer 2016. Element concentrations were measured during core extractions using portable X-ray fluorescence (XRF), which was subsequently validated against bench-scale XRF. Depth-dependent trends in both regolith depth and chemical depletion patterns show significant variation with landscape position. All three boreholes show complex weathering profiles with differences potentially due to textural controls on weathering, development of preferential flowpaths, and differing hydrologic base levels. Preliminary data indicate that chemical depletion patterns are not monotonic, but rather comprise large excursions that are being investigated for their relation to variation in local mineralogical composition and

  11. Single crystal growth of Ce:Gd3(Ga,Al)5O12 with various Mg concentration and their scintillation properties

    Science.gov (United States)

    Kamada, Kei; Shoji, Yasuhiro; Kochurikhin, Vladimir V.; Nagura, Aya; Okumura, Satoshi; Yamamoto, Seiichi.; Yeom, Jung Yeol; Kurosawa, Shunsuke; Pejchal, Jan; Yokota, Yuui; Ohashi, Yuji; Nikl, Martin; Yoshino, Masao; Yoshikawa, Akira

    2017-06-01

    1 in. diameter Mg 0.05, 0.1, 0.2, 0.5 mol% and Zr 0.015% co-doped Ce1%:GGAG crystals were grown by Cz method. Relationship between Mg concentration and absorption, luminescence, light output, decay time, timing resolution was investigated. Mg 0.2 mol% co-doped sample showed the fastest timing resolution of 165 ps among the Mg-co-doped samples.

  12. Emergence of sequence type 11 Klebsiella pneumoniae coproducing NDM-1 and VIM-1 metallo-β-lactamases in a Greek hospital.

    Science.gov (United States)

    Papagiannitsis, C C; Malli, E; Florou, Z; Sarrou, S; Hrabak, J; Mantzarlis, K; Zakynthinos, E; Petinaki, E

    2017-03-01

    Sequence type 11 Klebsiella pneumoniae, coproducing NDM-1 and VIM-1 metallo-β-lactamases, were isolated in a Greek hospital. blaNDM-1 was part of a Tn125 derivative, located on an ~90-kb plasmid similar to the NDM-1-encoding plasmid pB-3002cz. blaVIM-1 was located in an In-e541-like integron, carried on a multireplicon (IncA/C and IncR) plasmid of ~180kb.

  13. Evaluating the Impact of Offshoring on US National Security

    Science.gov (United States)

    2011-05-15

    China and India (Washington, DC: U.S. Government Accountability Office, September 2006), 10. 9 Ibid., 8. 18 10 Patrick Thibodeau , “Budget Woes...Software Industries Increasingly Produce in China and India, 20. 13 Ibid., 13. 14 Thibodeau , “Budget Woes Could Boost Government Offshoring.” 15...Unemployment Trends Since 1995,” http://www.mpsv.cz/files/clanky/1676/Unemployment_Trends_since_1995.pdf (accessed April 30, 2011). 34 Thibodeau , “Budget

  14. Erich Fromm: ke kořenům etiky

    Directory of Open Access Journals (Sweden)

    Pavel Žďárský

    2008-05-01

    Full Text Available Článek je zaměřený na Frommovu nenáboženskou, psychologicky pojatou interpretaci židovsko-křesťanské tradice o dvou cestách člověka. Jde o upravenou verzi článku publikovaného v e-journalu PAIDEIA 2/2005, www.pedf.cuni.cz/paideia.

  15. Silicon solar cells with high efficiencies. Final report; Silicium-Solarzellen mit hoechsten Wirkungsgraden. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Wettling, W.; Knobloch, J.; Glunz, S.W.; Henninger, V.; Kamerewerd, F.J.; Koester, B.; Leimenstoll, A.; Schaeffer, E.; Schumacher, J.; Sterk, S.; Warta, W.

    1996-06-01

    In this report the basic activities for the development of the silicon high efficiency solar cell technology are described. The project had two main goals: (i) The improvement of efficiencies using a systematic optimization of all cell parameters and technology steps and (ii) the simplification of the technology towards the possibilities of an industrial production, keeping the cell efficiency at a high level. Starting from the LBSF technology, developed at Fraunhofer ISE, the reduction of all loss mechanisms led to efficiencies up to 22.5% on FZ-silicon. Using a modification of this technology efficiencies of up to 21.7% have been reached on Cz-silicon. Even after the reduction of the number of photolithographic steps from six to three efficiencies up to 21.6% on FZ- and 19.5% on Cz-silicon have been obtained. These are best values in an international comparison. (orig.) [Deutsch] In diesem Projektbericht werden grundlegende Arbeiten zur Entwicklung der Silicium-`Highefficiency`-Solarzellentechnologie beschrieben. Das Projekt hatte zwei Hauptziele: (i) Die Erhoehung der Wirkungsgrade durch eine systematische Optimierung aller Zellparameter und aller Technologieschritte und (ii) die Vereinfachung der Technologie unter Beibehaltung sehr hoher Wirkungsgrade mit dem Ziel einer Annaeherung an die Moeglichkeiten der Industriefertigung. Ausgehend von der im Fraunhofer ISE entwickelten LBSF-Technologie gelang es durch Reduzierung aller Verlustmechanismen, Wirkungsgrade bis zu 22.5% auf FZ-Silicium zu erreichen. Nach Anpassung der Technologie wurden auf Cz-Silicium Wirkungsgrade bis 21.7% erzielt. Ein von sechs auf drei Fotomaskenschritte reduzierter Prozess erzielte immerhin noch Werte bis 21.6% auf FZ- und 19.5% auf Cz-Material. Alle dieser Werte stellen im internationalen Vergleich Spitzenleistungen dar. (orig.)

  16. MEROMORPHIC SOLUTIONS OF SYSTEM OF FUNCTIONAL EQUATIONS%函数方程组的亚纯解

    Institute of Scientific and Technical Information of China (English)

    李海绸; 高凌云

    2012-01-01

    This article investigates the problem of the growth and the exist of meromorphic solutions of system of functional equations of the form {fn1(CZ)=a(z)f1m1(z)/f2m2(z),fn2(CZ)=b(z)f2m1(z)/f1m2(z),where a(z),b(z) are rational functions,|c| ≠ 0,1,n > 1,mi > 1(i =1,2).By using Nevanlinna theory of the value distribution of meromorphic functions and some methods of researching complex function equation,we obtain three results of the system of functional equations,which extend the results of function equation.%本文主要研究以下类型函数方程组亚纯解的存在性和增长性问题{fn1(CZ)=a(Z)f1m1(z)/f2m2(z),fn2(CZ)=b(Z)f2m1(z)/f1m2(z),其中a(z),b(z)为有理函数,|c|≠0,1,n>1,mi>1(i=1,2).利用亚纯函数的Nevanlinna值分布理论与及复函数方程研究部分方法,获得了定理1,2,3三个关于函数方程组的结果,推广了函数方程中的一些结果.

  17. Ćwiczenia z narastającym oporem w usprawnianiu pacjentów z reumatoidalnym zapaleniem stawów leczonych operacyjnie

    Directory of Open Access Journals (Sweden)

    Agnieszka Prusinowska

    2010-08-01

    Full Text Available W artykule przedstawiono formę ćwiczeń czynnych oporowychwykorzystywanych do usprawniania pacjentów z rozpoznaniemreumatoidalnego zapalenia stawów po typowych zabiegach ortopedycznychw obrębie narządu ruchu. Forma ćwiczeń umożliwiausprawnianie pacjenta zarówno w warunkach klinicznych, jaki domowych. Jest atrakcyjna dla pacjenta, nie wymaga zakupu drogiegoi często skomplikowanego w obsłudze sprzętu.

  18. Novel carbazole-phenothiazine dyads for dye-sensitized solar cells: a combined experimental and theoretical study.

    Science.gov (United States)

    Marotta, Gabriele; Reddy, Marri Anil; Singh, Surya Prakash; Islam, Ashraful; Han, Liyuan; De Angelis, Filippo; Pastore, Mariachiara; Chandrasekharam, Malapaka

    2013-10-09

    We report a joint experimental and computational work on new organic donor-acceptor dye sensitizers in which a carbazole (CZ) and a phenothiazine (PTZ) units are linked together by an alkyl C6H13, while two different anchoring groups are employed: the cyanoacrylic acid (CS1A, CSORG1) and the rhodanine-3-acetic acid (CS4A, CSORG4). The CZ moiety has multiple roles of (i) acting as an extra-electron donor portion, providing more electron density on the PTZ; (ii) suppressing the back-electron transfer from TiO2 to the electrolyte by forming a compact insulating dye layer; (iii) modulating dye aggregation on the semiconductor surface; and (iv) acting as an antenna, collecting photons and, through long-range energy transfer, redirecting the captured energy to the dye sensitizer. We show that the introduction of the CZ donor remarkably enhances the photovoltaic performances of the rhodanine-based dye, compared to the corresponding simple PTZ dye, with more than a two-fold increase in the overall efficiencies, while it does not bring beneficial effects in the case of the cyanoacrylic-based sensitizer. Based on quantum mechanical calculations and experimental measurements, we show that, in addition to a favored long-range energy transfer, which increases the light absorption in the blue region of the spectrum, the presence of the CZ unit in the CSORG4 dye effectively induces a beneficial aggregation pattern on the semiconductor surface, yielding a broadened and red-shifted light absorption, accounting for the two-fold increase in the generated photocurrent.

  19. Effect of diets supplemented with different sources of astaxanthin on the gonad of the sea urchin Anthocidaris crassispina.

    Science.gov (United States)

    Peng, Juan; Yuan, Jian-Ping; Wang, Jiang-Hai

    2012-08-01

    The effect of the microalgae Haematococcus pluvialis and Chorella zofingiensis, and synthetic astaxanthin on the gonad of the sea urchin Anthocidaris crassispina was studied. The basal diet was supplemented with H. pluvialis, C. zofingiensis, or synthetic astaxanthin, at two levels of astaxanthin (approximately 400 mg/kg and 100 mg/kg), to obtain the experimental diets HP1, HP2, CZ1, CZ2, AST1, and AST2, respectively, for two months of feeding experiment. The results showed that the concentrations of astaxanthin in the gonads of the sea urchins fed these experimental diets ranged from 0.15 to 3.01 mg/kg dry gonad weight. The higher astaxanthin levels (>2.90 mg/kg) were found in the gonads of the sea urchins fed the diets HP1 (containing 380 mg/kg of astaxanthins, mostly mono- and diesters) and AST1 (containing 385 mg/kg of synthetic astaxanthin). The lowest astaxanthin level (0.15 mg/kg) was detected in the gonads of the sea urchins fed the diet CZ2 (containing 98 mg/kg of astaxanthins, mostly diesters). Furthermore, the highest canthaxanthin level (7.48 mg/kg) was found in the gonads of the sea urchins fed the diet CZ1 (containing 387 mg/kg of astaxanthins and 142 mg/kg of canthaxanthin), suggesting that astaxanthins, especially astaxanthin esters, might not be assimilated as easily as canthaxanthin by the sea urchins. Our results show that sea urchins fed diets containing astaxanthin pigments show higher incorporation of these known antioxidant constituents, with the resultant seafood products therefore being of potential higher nutritive value.

  20. Excimer Laser Research

    Science.gov (United States)

    1979-01-01

    experiment as kHg = 4 x 10- ]1 cm3 Is. The saturation flux s can be computed using the following expres- sion S= I + k T[ACZ] + k rT [Ar] ; AsT. AACr(2...kxe T[Xe] + kHg T[Hg]I where a is the stimulated emission cross section, hv is thes photon energy, T is the HgCZ* radiative lifetime, and k. the1

  1. Využití internetového marketingu a sociálních sítí pro podporu internetového obchodu

    OpenAIRE

    Heideker, Petr

    2012-01-01

    The thesis is about internet marketing tools and their possible usage, shown on exact example from internet shop Minibike-shop.cz. The thesis is divided in three logical parts, which are built on each other. There are theoretically described tools in the first part, which can be used for an online promotion of the shop. The individual tools describe their advantages and possibilities of usage, which can result in improvement of business competitiveness. The fourth chapter of the thesis is com...

  2. Dicty_cDB: CHR416 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available e (fcsA) mRNA, complete cds. 58 7e-08 2 BQ875501 |BQ875501.1 QGI8E20.yg.ab1 QG_ABCDI lettuce salinas Lactuca...21.yg.ab1 QG_ABCDI lettuce salinas Lactuca sativa cDNA clone QGI10G21, mRNA sequence. 54 0.003 1 CZ968225 |C

  3. Inoculating chlamydospores of Trichoderma asperellum SM-12F1 changes arsenic availability and enzyme activity in soils and improves water spinach growth.

    Science.gov (United States)

    Su, Shiming; Zeng, Xibai; Bai, Lingyu; Williams, Paul N; Wang, Yanan; Zhang, Lili; Wu, Cuixia

    2017-05-01

    Arsenic (As)-contaminated agricultural soils threaten crop yields and pose a human health risk. Augmentation of exogenous microorganisms exhibiting plant-growth promoting and As speciation changing shows potential to improve crop growth and change soil As availability. Trichoderma asperellum SM-12F1 exhibiting both traits was developed into chlamydospores to improve its persistence in contaminated soils. After inoculation, As availability and enzyme activity in two types of soils and the growth as well as As uptake of water spinach (Ipomoea aquatic Forsk.) were investigated. The results indicated that inoculation significantly improved water spinach growth in both soils. Inoculating chlamydospores at 5% significantly increased As concentration (139%), bioconcentration factor (150%), and translocation factor (150%) in water spinach grown in Chenzhou (CZ) soils, while no significant change for these in Shimen (SM) soils. Inoculating chlamydospores at 5% caused a significant increase (16%) of available As content in CZ soils, while a significant decrease (13%) in SM soils. Inoculation significantly caused As methylation in both soils, while significant As reduction merely observed in CZ soils. The differential changes in available As contents in both soils were attributed to the soil pH, As fractionations and speciation characteristics. Furthermore, Inoculating chlamydospores at 5% significantly improved the activities of β-glucosidase (155%), chitinase (211%), and phosphatase (108%) in SM soils, while significant decreases in β-glucosidase (81%), phosphatase (54%), aminopeptidase (60%), and catalase (67%) in CZ soils. Bioaugmentation and As availability change were responsible for this result. These observations will be helpful for the application of fungal chlamydospores in the future bioremediation. Copyright © 2017. Published by Elsevier Ltd.

  4. Ultrasound imaging in the general practitioner's office - a literature review.

    Science.gov (United States)

    Genc, Alicja; Ryk, Małgorzata; Suwała, Magdalena; Żurakowska, Tatiana; Kosiak, Wojciech

    2016-03-01

    Ultrasonografia, będąca bezpieczną i nieinwazyjną metodą diagnostyczną, wykorzystującą coraz bardziej udoskonalone techniki obrazowania, stała się badaniem pierwszego wyboru w wielu schorzeniach. Coraz częściej stosowana jest w gabinecie lekarza rodzinnego jako metoda uzupełniająca badania podmiotowe i przedmiotowe.

  5. Polska literatura powojenna wobec malarstwa holenderskiego złotego wieku

    OpenAIRE

    Śniedziewska, Magdalena

    2012-01-01

    Wydział Filologii Polskiej i Klasycznej: Instytut Filologii Polskiej W pierwszej części pracy doktorskiej przedstawiona została historia recepcji malarstwa holenderskiego złotego wieku w polskiej literaturze powojennej. Recepcja, która zapośredniczona jest w dziewiętnastowiecznej wizji sztuki Niderlandów. Interpretacje polskich pisarzy skonfrontowane zostały z odczytaniami siedemnastowiecznego malarstwa holenderskiego zaproponowanymi przez dziewiętnastowiecznych francuskich pisarzy i kryty...

  6. CNET OPN Automated Budget System (COABS)

    Science.gov (United States)

    1981-03-01

    the cursor , ove cursor rive spaces to right. Move cursor one space to right. Move cursor gne space to lert. Move curso ive spaces to left. Return to...4Hard Co~ Printer 4• 4 tj7 Add Sonobuoy & CZ/BB Cap. J 4 ingle /5 Beam gode Audio Volume 0 8r pIove Performance & Realism 59000 R epace Ampex VR 0

  7. Organic photoredox catalysis for the oxidation of silicates: applications in radical synthesis and dual catalysis.

    Science.gov (United States)

    Lévêque, Christophe; Chenneberg, Ludwig; Corcé, Vincent; Ollivier, Cyril; Fensterbank, Louis

    2016-08-01

    Metal free photooxidation of alkyl bis(catecholato)silicates with the organic dye 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyano-benzene (4CzIPN) allows the smooth formation of alkyl radicals. The latter can be efficiently engaged either with radical acceptors to provide homolytic addition products or in photoredox/nickel dual catalysis reactions to obtain cross-coupling products.

  8. Mojave Compliant Zone Structure and Properties: Constraints from InSAR and Mechanical Models

    Science.gov (United States)

    Hearn, E. H.; Fialko, Y.; Finzi, Y.

    2007-12-01

    Long-lived zones with significantly lower elastic strength than their surroundings are associated with active Mojave faults (e.g., Li et al., 1999; Fialko et al., 2002, 2004). In an earthquake these weak features concentrate strain, causing them to show up as anomalous, short length-scale features in SAR interferograms (Fialko et al., 2002). Fault-zone trapped wave studies indicate that the 1999 Hector Mine earthquake caused a small reduction in P- and S-wave velocities in a compliant zone along the Landers earthquake rupture (Vidale and Li, 2003). This suggests that coseismic strain concentration, and the resulting damage, in the compliant zone caused a further reduction in its elastic strength. Even a small coseismic strength drop should make a compliant zone (CZ) deform, in response to the total (not just the coseismic) stress. The strain should be in the sense which is compatible with the orientations and values of the region's principal stresses. However, as indicated by Fialko and co-workers (2002, 2004), the sense of coseismic strain of Mojave compliant zones was consistent with coseismic stress change, not the regional (background) stress. Here we use finite-element models to investigate how InSAR measurements of Mojave compliant zone coseismic strain places limits on their dimensions and on upper crustal stresses. We find that unless the CZ is shallow, narrow, and has a high Poisson's ratio (e.g., 0.4), CZ contraction under lithostatic stress overshadows deformation due to deviatoric background stress or coseismic stress change. We present ranges of CZ dimensions which are compatible with the observed surface deformation and address how these dimensions compare with new results from damage-controlled fault evolution models.

  9. Ženská otázka v českém ekonomickém myšlení před rokem 1948

    OpenAIRE

    Machátová, Hana

    2013-01-01

    The thesis deals with the czech economic thought till 1948, specifically its part called woman's issue. Woman's issue was part of the social issue and it touched many of economical and social topics in theoretical and practical economy. Thesis explores interpretation of czech economists and summarizes their attitudes towards woman's issue, it defines main topics of woman's issue along with the prevailing opinions of economists and it analyses development of opinions of woman's issue in the cz...

  10. Propagace internetové cestovní agentury

    OpenAIRE

    Poláková, Kateřina

    2010-01-01

    The aim of the diploma thesis "Promotion of internet travel agency" is to analyze the communication mix of travel agency Invia.cz and to formulate proposals for its improvement. The thesis is divided into four chapters. The first chapter defines internet as a medium and the possibilities of online communication. The second chapter describes the specific characteristics of tourism marketing and the expanded marketing mix. The third chapter analyzes survey results about consumer behavior in sel...

  11. Marketingový audit zvoleného subjektu

    OpenAIRE

    Trpák, Pavel

    2016-01-01

    The purpose of my thesis is to conduct the marketing audit of Dřevocentrum CZ company aimed at trading of wood products. In the theoretical part are explained terms like marketing, marketing mix, mystery shopping, marketing research and benchmarking. In the application part are processed particular analyses of marketing audit. Special attention is paid to assortment, prices, communication and market shares, compared to competitors afterwards. Acquired information are evaluated. At the conclus...

  12. Quantitative Methods in Economics. Didactic and Cognitive Perspective.

    Directory of Open Access Journals (Sweden)

    Janusz Buga

    2008-01-01

    Full Text Available Od wielu lat metody ilościowe są stałym przedmiotem wykładanym na uczelniach ekonomicznych. Są co najmniej dwie obiektywne przesłanki uzasadniają- ce taki stan rzeczy. Pierwsza, to wspłczesny rozwj teorii ekonomii i dyscyplin z nią związanych, ktre nie tylko w badaniach podstawowych, ale także w zastosowaniach coraz częściej wykorzystują wiedzę matematyczną. Trudno obecnie zrozumieć wiele zagadnień ekonomicznych, a szczeglnie podstaw teoretycznych, bez posiadania określonej wiedzy natury ilościowej. Druga, to intelektualny rozwj człowieka, w ktrym żelazne prawa logiki wspłkształtują jego zdolność do poprawnego odczytywania rzeczywistości. A podstawowe zależności logiczne znajdujemy właśnie w matematyce, ktrej odnośny dział jest nazywany wstępem do matematyki lub logiką matematyczną. Można zatem powiedzieć, że wspłcześnie wykształcony człowiek, człowiek kreatywny, a nie tylko konsumujący, powinien posiąść znajomość określonego zakresu wiedzy ilościowej. W szczeglności dotyczy to ekonomistw zarwno trudzących się badaniem i analizą teorii gospodarowania, jak i (może w mniejszym zakresie jej stroną praktyczną.

  13. Anti-allergic effect of intranasal administration of type-A procyanidin polyphenols based standardized extract of cinnamon bark in ovalbumin sensitized BALB/c mice.

    Science.gov (United States)

    Aswar, Urmila M; Kandhare, Amit D; Mohan, Vishwaraman; Thakurdesai, Prasad A

    2015-03-01

    The objective of the present work was to evaluate anti-allergic effects of intranasal administration of type-A procynidines polyphenols (TAPP) based standardized hydroalcoholic extract of Cinnamomum zeylanicum bark (TAPP-CZ) in ovalbumin (OVA)-induced experimental allergic rhinitis (AR) in BALB/c mice. Sixty male BALB/c mice were divided into six groups of ten each (G1-G6). The mice from G1 were nonsensitized and maintained as normal group. Remaining mice (G2-G6) were sensitized with OVA (500 μL solution, intraperitoneal) on alternate days for 13 days and had twice daily intranasal treatment from day 14-21 as follows: G2 (AR control) received saline, G3 (positive control, XLY) received xylometazoline (0.5 mg/mL, 20 μL/nostril) and G4-G6 received TAPP-CZ (3, 10 and 30 µg/kg in nostril), respectively. On day 21, mice were challenged with OVA (5 μL/nostril, 5% solution) and assessments (nasal signs, biochemical and histopathological) were performed. Treatment with TAPP-CZ (10 and 30 µg/kg in nostril) showed significant attenuation in OVA-induced alterations of the nasal (number of nasal rubbing and sneezing), biochemical markers (serum IgE and histamine), haematological, morphological (relative organ weight of spleen and lung) and histopathological (nasal mucosa and spleen) parameters. In conclusion, TAPP-CZ showed anti-allergic efficacy in animal model of AR.

  14. The Annual Conference on HAN (Hydroxylammonium Nitrate) Based Liquid Propellants (3rd) Held in Aberdeen Proving Ground, Maryland on 25-27 August 1987.

    Science.gov (United States)

    1988-03-01

    469 o cz 700 SRS 1M KNO3 DROPLET No 3 H 0 1 VHO0 2 vH 0v w 2? z 1st 2nd 1000 1100 2100 3400 3500 4400 4500 4600 STOKES RAMAN SHIFT (cm-1) I (NO) I...Bracuti HQDA J. Lannon DAMA-ART-M SMCAR-CCH, R. Price Washington, DC 20310 SMCAR-FSS-A, L. Frauen SMCAR-FSA-S, Commander H. Liberman S US Army

  15. Effects of argon gas flow rate and guide shell on oxygen concentration in Czochralski silicon growth

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    φ200 mm silicon single crystals were grown in the φ450 mm hot zone of a Czochralski (CZ) furnace. By modifying the pattern and the velocity of the argon flow, the silicon single crystals with different oxygen concentrations were obtained. Through numerical simulation, the velocity of the argon gas flow was plotted for the first time. The experiment results were analyzed and the optimum condition of the argon flow with the lowest oxygen concentration was obtained.

  16. Marketing in Health Care

    OpenAIRE

    Stejskal, Martin

    2009-01-01

    This bachleor thesis was created to analyse variety of marketing strategies, such as consumer orientation, segmentation, targeting or positioning. As the theoretical part continues, an overview of the Ethicon product portfolio is introduced. For the purposes of this thesis, products were divided into particular groups. Furthermore, for Ethicon CZ, a Johnson and Johnson Medical Company, there was a SWOT analysis prepared as well as the analysis of the Czech market and its competitors. In the p...

  17. Produktová strategie firmy Starbucks na českém trhu

    OpenAIRE

    Jedlička, Michal

    2013-01-01

    The Bachelor's thesis characterises Starbucks Corporation and its product strategy over the world as well as in the Czech Republic. The first chapter is theoretical and covers the product in marketing, international product policy, product mix strategy, product innovation and SWOT analysis. The remaining two chapters are practical. The second chapter describes Starbucks, its world product strategy and its Czech competition. The last chapter analyses the product strategy of Starbucks in the Cz...

  18. Research on polyfluorene derivatives end-capped by N-hexyl-carbazole and benzene

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Copolymers of 9,9-dioctylfluorene (DOF) and 2-thienyl-benzothiadiazole (DBT) were synthesized by Suzuki reaction and end-capped by N-hexyl-carbazole and benzene, which were abbreviated as PDOF-DBT-Cz and PDOF-DBT-B, respectively. The photophysical, electrochemical and thermal properties of the copolymers were studied. The results indicated that replacement of N-hexyl-carbazole as end-capping group of PDOF-DBT can vary light color and improve luminescence efficiency.

  19. Annealing behaviors of vacancy in varied neutron irradiated Czochralski silicon

    Institute of Scientific and Technical Information of China (English)

    CHEN Gui-feng; LI Yang-xian; LIU Li-li; NIU Ping-juan; NIU Sheng-li; CHEN Dong-feng

    2006-01-01

    The difference of annealing behaviors of vacancy-oxygen complex (VO) in varied dose neutron irradiated Czochralski silicon: (S1 5×1017 n/cm3 and S2 1.07×1019 n/cm3) were studied. The results show that the VO is one of the main defects formed in neutron irradiated Czochralski silicon (CZ-Si). In this defect,oxygen atom shares a vacancy,it is bonded to two silicon neighbors. Annealed at 200 ℃,divacancies are trapped by interstitial oxygen(Oi) to form V2O (840 cm-1). With the decrease of the 829 cm-1 (VO) three infrared absorption bands at 825 cm-1 (V2O2),834 cm-1 (V2O3) and 840 cm-1 (V2O) will rise after annealed at temperature range of 200-500 ℃. After annealed at 450-500 ℃ the main absorption bands in S1 sample are 834 cm-1,825 cm-1 and 889 cm-1 (VO2),in S2 is 825 cm-1. Annealing of A-center in varied neutron irradiated CZ-Si is suggested to consist of two processes. The first is due to trapping of VO by Oi in low dose neutron irradiated CZ-Si (S1) and the second is due to capture the wandering vacancy by VO,etc,in high dose neutron irradiated CZ-Si (S2),the VO2 plays an important role in the annealing of A-center. With the increase of the irradiation dose,the annealing behavior of A-center is changed.

  20. Racionalizace toku přepravních prostředků mezi firmou Continental Teves a jejími dodavateli

    OpenAIRE

    Voleníková, Štěpánka

    2008-01-01

    The diploma thesis deals with the rationalization of the flow of transport units among the company Continental Teves CZ, s.r.o. and suppliers. The objective of the thesis is to map the flow of transport units, to suggest possible solutions and to pass judgment on a possible implementation of automatic identification that can facilitate monitoring of such marked transport units. The theoretical part of the thesis describes specifics of automotive industry and of supply chains that operate there.

  1. AcEST: BP912022 [AcEST

    Lifescience Database Archive (English)

    Full Text Available FEKGLEL-------YSNGVLIMEKCPDLLPD 321 >sp|P46082|BXEN_CLOBO Botulinum neurotoxin type E, nontoxic component OS...2|BXEN_CLOBO Botulinum neurotoxin type E, nontoxic compo... 29 8.4 >sp|P96195|LEUC_AZOVI 3-isopropylmalate d...us influenzae ... 29 6.4 sp|Q65CZ5|HTPG_BACLD Chaperone protein htpG OS=Bacillus lichenif... 29 8.4 sp|P4608

  2. New Solution of Famous Theorem

    Institute of Scientific and Technical Information of China (English)

    钟开莱

    2003-01-01

    @@ About 1923, the great mathematician Paul Lévy invented a family of probability distributions (laws) called "stable". If X and Y are independent randon variables with the law L, then for any constants a > 0 and b, there exist constants c > 0 and d such that the law of aX + bY is the same as cZ + d, where Z is a randon variable with the same law L.

  3. Marketingová komunikace nově vznikajícího dámského eshopu

    OpenAIRE

    Myšíková, Adéla

    2013-01-01

    Title: Marketing Communication of Recently Made Ladies' Eshop Objectives: The main aim of the Dissertation thesis is to create marketing communications for recently made ladies' eshop. This main aim will be reached on the basis of marketing research. Methods: In this thesis I will be use a marketing questionnaire, which will be source for marketing communications for recently made women's eshop Activelady.cz. Results: With the help of marketing research was the properties and behaviour of wom...

  4. Dicty_cDB: Contig-U16401-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available lanum lycopersicum chromosome 9 clone C09HBa010... 46 3.6 1 ( AZ928522 ) 479.dif10f11.s1 Saccharomyces kluyveri Lachance...a ... 46 3.6 1 ( AZ928134 ) 479.dif05a01.s1 Saccharomyces kluyveri Lachancea ... 46 3.6 1 ( AZ92...8121 ) 479.dif04g11.s1 Saccharomyces kluyveri Lachancea ... 46 3.6 1 ( CZ528675 )

  5. Influence of carbonation under oxy-fuel combustion flue gas on the leachability of heavy metals in MSWI fly ash.

    Science.gov (United States)

    Ni, Peng; Xiong, Zhuo; Tian, Chong; Li, Hailong; Zhao, Yongchun; Zhang, Junying; Zheng, Chuguang

    2017-09-01

    Due to the high cost of pure CO2, carbonation of MSWI fly ash has not been fully developed. It is essential to select a kind of reaction gas with rich CO2 instead of pure CO2. The CO2 uptake and leaching toxicity of heavy metals in three typical types of municipal solid waste incinerator (MSWI) fly ash were investigated with simulated oxy-fuel combustion flue gas under different reaction temperatures, which was compared with both pure CO2 and simulated air combustion flue gas. The CO2 uptake under simulated oxy-fuel combustion flue gas were similar to that of pure CO2. The leaching concentration of heavy metals in all MSWI fly ash samples, especially in ash from Changzhou, China (CZ), decreased after carbonation. Specifically, the leached Pb concentration of the CZ MSWI fly ash decreased 92% under oxy-fuel combustion flue gas, 95% under pure CO2 atmosphere and 84% under the air combustion flue gas. After carbonation, the leaching concentration of Pb was below the Chinese legal limit. The leaching concentration of Zn from CZ sample decreased 69% under oxy-fuel combustion flue gas, which of Cu, As, Cr and Hg decreased 25%, 33%, 11% and 21%, respectively. In the other two samples of Xuzhou, China (XZ) and Wuhan, China (WH), the leaching characteristics of heavy metals were similar to the CZ sample. The speciation of heavy metals was largely changed from the exchangeable to carbonated fraction because of the carbonation reaction under simulated oxy-fuel combustion flue gas. After carbonation reaction, most of heavy metals bound in carbonates became more stable and leached less. Therefore, oxy-fuel combustion flue gas could be a low-cost source for carbonation of MSWI fly ash. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Observations on the Synergistic Interactions of Aqueous Oxidizers and Ultraviolet Radiation for Decontamination Applications

    Science.gov (United States)

    1986-05-20

    alkylbenzene sulfonic acids to carbon dioxide and water using UV irradiation and aqueous hypochlorite. Thus, the synergistic effect of high energy...Perhydroxyl Radicals. A Flash Photolysis Study," Cz.7 J. Cbem. 57, 3017-3022 (1979). M. Nakamura and Y.Ogata, "Photolytic Oxidation of AlkylBenzene Sulfonic ...the low concentration of quinine in the test solution, fluorescence is linear with concentration (Ewing, 1969). Since the pH of 2 x 10-4 quinine

  7. Variable Star and Exoplanet Section of the Czech Astronomical Society

    Science.gov (United States)

    Brát, L.; Zejda, M.

    2010-12-01

    We present activities of Czech variable star observers organized in the Variable Star and Exoplanet Section of the Czech Astronomical Society. We work in four observing projects: B.R.N.O. - eclipsing binaries, MEDUZA - intrinsic variable stars, TRESCA - transiting exoplanets and candidates, HERO - objects of high energy astrophysics. Detailed information together with O-C gate (database of eclipsing binaries minima timings) and OEJV (Open European Journal on Variable stars) are available on our internet portal http://var.astro.cz.

  8. SMEs growth in the Czech Republic: Some macroeconomic perspectives

    OpenAIRE

    Osakwe, Christian Nedu; Verter, Nahanga; Bečvářová, Věra; Chovancová, Miloslava

    2015-01-01

    Small and medium enterprises (SMEs) are seen as a vehicle for employment generation, wealth creation, economic growth and development in countries that have a sound investment climate. SMEs, account for approximately one-third of GDP, over 50% of the value added, 99% of the share of total registered enterprises, and represent 60% of total employment in the Czech Republic. In the light of this background, the paper explores the influence of some macroeconomic variables on SMEs growth in the Cz...

  9. Analýza podnikové kultury ve vybrané společnosti

    OpenAIRE

    STOWASSEROVÁ, Petra

    2009-01-01

    The objective of my diploma thesis was to find out the way the chosen corporate culture is realised in use and what it's impact on company employees. The diploma thesis resulted in a compact summary of the company corporate culture as well as gave suggestions how to improve imperfections in given areas. For this particular analysis of the corporate culture in Vodafone CZ company I have created a concept of procedure and a selection of techniques usable for information acquisiton neccessary fo...

  10. Control of Sensors for Sequential Detection: A Stochastic Approach

    Science.gov (United States)

    2013-11-13

    Sensors,” in IEEE Transactions on Automatic Control , To be Submitted, 2013. Students Supported: The following students have been partially or fully... Transactions on Automatic Control , To be Submitted, 2013. In summary, by performing core research on information gathering and fusion, this proposal has...described in the paper: • C.-Z. Bai, V. Gupta, and Y.-F. Huang, “An On-line Sensor Selection Algorithm for SPRT with Multiple Sensors,” in IEEE

  11. The influence of precipitation temperature on the properties of ceria–zirconia solid solution composites

    Energy Technology Data Exchange (ETDEWEB)

    Cui, Yajuan [College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan (China); Fang, Ruimei; Shang, Hongyan [College of Chemical Engineering, Sichuan University, Chengdu 610064, Sichuan (China); Shi, Zhonghua; Gong, Maochu [Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan (China); Center of Engineering of Vehicular Exhaust Gases Abatement, Chengdu 610064, Sichuan (China); Center of Engineering of Environmental Catalytic Material, Chengdu 610064, Sichuan (China); Chen, Yaoqiang, E-mail: nic7501@scu.edu.cn [College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan (China); College of Chemical Engineering, Sichuan University, Chengdu 610064, Sichuan (China); Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan (China); Center of Engineering of Vehicular Exhaust Gases Abatement, Chengdu 610064, Sichuan (China); Center of Engineering of Environmental Catalytic Material, Chengdu 610064, Sichuan (China)

    2015-04-15

    Highlights: • The crystallite size of precipitate increases as the precipitation temperature rises. • The stack of large crystallite can form nanoparticles with big pore size. • Big pore sizes are advantageous to improve the thermal stability. • Phase segregation is restricted in CZ solid solution precipitated at 70 °C. • The reducibility and OSC of the solid solution precipitated at 70 °C are improved. - Abstract: The ceria–zirconia composites (CZ) with a Ce/Zr mass ratio of 1/1 were synthesized by a back-titration method, in which the influence of precipitation temperature on the properties of ceria–zirconia precipitates was investigated. The resulting precipitation and mixed oxides at different precipitation temperatures were then characterized by a range of techniques, including textural properties, X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), H{sub 2}-temperature programmed reduction (H{sub 2}-TPR) as well as oxygen storage capacity (OSC) measurement. The results revealed that ceria–zirconia composites were formed as solid solution and such structure is favored of thermostability and texture properties. In particular, the composite CZ-70 synthesized at 70 °C exhibited prominent thermostability with a surface area of 32 m{sup 2}/g as well as a pore volume of 0.15 cc/g after aging treatment at 1000 °C for 5 h. And this was found to be associated with the wider pore size distribution which maybe owed to the formation of large crystal at the primary stage of precipitation. Additionally, the composite CZ-70 showed excellent reduction property and OSC benefiting from stable texture and structure.

  12. Measurement of physical property values of molten semiconductor in microgravity environments and analysis of heat flow in silicon crystal growing furnace; Bisho juryoku kankyoka ni okeru handotai yueki no busseichi sokutei oyobi silicon kessho seicho ronai netsu ryudo kaiseki no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Imaishi, Y. [Kyushu University, Fukuoka (Japan). Institute of Advanced Material Study; Tsukada, T. [Tohoku University, Sendai (Japan). The Institute for Chemical Reaction Science; Kitagawa, S.

    1997-09-10

    Simulation is conducted, covering a range from microscopic atom scale phenomena to a Cz furnace as a whole, for the analysis of high-quality silicon crystal growing Cz furnaces and for the evaluation of the degree of soundness represented by measured physical property values. Physical property value measuring experiments are being conducted in microgravity environments using the JAMIC (Japan Micro Gravity Center) free-fall tower, etc., and part of the results achieved so far is reported. In an `analysis of behavior of droplets afloat in an electromagnetic field,` electromagnetic levitation furnace coils and molten silicon drops are modelled, and the effect of gravitational acceleration on the drop shape and on the gravity center displacement upon application of a high-frequency current to the levitation coils is examined. In a `study of organization of comprehensive analysis codes for Cz furnace,` analysis programs for all the factors, a heat conduction analysis code, and a heat radiation code have been completed. In a `microsimulation,` studies of crystals and phenomena in molten semiconductor on the atomic scale are discussed. 6 figs.

  13. Reproductive traits of the gray ratsnake Ptyas korros from three geographically distinct populations

    Institute of Scientific and Technical Information of China (English)

    Long-Hui LIN; Fei MAO; Ce CHEN; Xiang JI

    2012-01-01

    We collected gravid gray rat snakes Ptyas korros from three geographically distinct populations in China,Chenzhou (CZ),Jiangshan (JS) and Dinghai (DH),to study geographical variation in female reproductive traits.Egg-laying dates differed among the three populations such that at the most northern latitude egg-laying was latest,and earliest at the most southern latitutde.Clutch size,clutch mass,egg mass,egg shape,within clutch variability in egg sizes and relative clutch mass differed among the three populations,whereas post-oviposition body mass did not.Except for egg-laying date,none of the traits examined varied in a geographically continuous trend.CZ and DH females,although separated by a distance of approximately 1100 km as the crow flies,were similar in nearly all traits examined.JS females were distinguished from CZ and DH females by their higher fecundity (clutch size),greater reproductive output (clutch mass) and more rounded eggs.Our data do not validate the prediction that larger offspring should be produced in colder localities.The absence of an egg size-number trade-off in each of the three populations presumably suggests that P.korros is among species where eggs are well optimized for size within a population.

  14. Childhood physical neglect promotes development of mild cognitive impairment in old age - A case-control study.

    Science.gov (United States)

    Wang, Lan; Yang, Linlin; Yu, Lulu; Song, Mei; Zhao, Xiaochuan; Gao, Yuanyuan; Han, Keyan; An, Cuixia; Xu, Shunjiang; Wang, Xueyi

    2016-08-30

    This study aimed to investigate the role of early traumatic experiences in development of mild cognitive impairment (MCI) in Chinese elderly people. Seventy six patients and 61 controls were selected and assigned into two study groups, MCI and control, respectively. Childhood Trauma Questionnaire-Short Form (CTQ-SF) was used for assessment of early trauma, episodic memory and association learning scales for memory evaluation. In addition, event-related potentials (ERPs) were measured using electroencephalography (EEG) to indicate brain electrical activity of subjects during memory/cognitive tests. MCI patients showed higher scores of physical neglect and lower scores of emotional abuse in childhood than control group. Physical neglect score was negatively correlated with scores of MMSE, MoCA, episodic memory, calculation, and the amplitude of CzP300, FzP300 and PzP300, while a positive correlation was seen between the score of physical neglect and the latency of PzN200, FzN200, CzN200, CzP300, FzP300 and PzP300. The score of emotional abuse was weakly correlated with FzP300 amplitude, but not with any other ERP components. Our results suggested that early childhood exposure to physical neglect may lead to impairment in learning and memory, particularly in the associative learning and episodic memory, in old age.

  15. Comparative evaluation of antimicrobial efficacy of three herbal irrigants in reducing intracanal E. faecalis populations: An in vitro study

    Science.gov (United States)

    Wadhwa, Jitesh; Duhan, Jigyasa

    2016-01-01

    Background The present study aimed to evaluate the intracanal bacterial reduction promoted by chemomechanical preparation using three different herbal extracts named Ocimum sanctum (OS), Cinnamomum zeylanicum (CZ), Syzygium aromaticum (SA) against Enterococcus faecalis. Material and Methods Root canals from extracted teeth were contaminated with Enterococcus faecalis ATCC 29212 for 7 days and then randomly distributed into 3 experimental groups of 10 teeth each: which includes conventional irrigation with OS, CZ and SA. The control groups included 5 teeth each consisting of NaOCl (positive control) and distilled water (negative control). Samples taken before and after chemomechanical procedures were cultured, and the colony-forming units (CFUs) were counted. Bacterial identification was performed using Polymerase chain reaction technique. The statistical analyses were performed with various tests. Results Reduction in the intracanal bacterial populations was highly significant for all the experimental groups. CZ and SA showed 80 to 85% intracanal bacterial reduction while O. Sanctum revealed only 70 to 75 % reduction. NaOCl showed 96 to 100 % bacterial reduction on the other hand distilled water showed very minimal bacterial reduction i.e 10 to 16%. Conclusions Cinnamomum zeylanicum, Syzygium aromaticum and Ocimum sanctum showed intracanal bacterial reduction against Enterococcus faecalis. The 3 experimental groups were less effective in terms of intracanal bacterial reduction as compare to NaOCl but more effective than distilled water. Key words:Antimicrobial activity, Cinnamomum zeylanicum, Enterococcus faecalis, Ocimum sanctum, Syzygium aromaticum, herbal extracts. PMID:27398170

  16. An eight-dimensional quantum mechanical Hamiltonian for X + YCZ3 system and its applications to H + CH4 reaction.

    Science.gov (United States)

    Liu, Rui; Xiong, Hongwei; Yang, Minghui

    2012-11-07

    An eight-dimensional quantum mechanical Hamiltonian has been proposed based on Palma and Clary's model in which the non-reacting CZ(3) group keeps a C(3v) symmetry in the X + YCZ(3) ↔ XY + CZ(3) reaction J. Palma and D. C. Clary [J. Chem. Phys. 112, 1859 (2000)]. By transforming the original cartesian coordinate system (x, s) into a scaled polar coordinate system (q, γ), the vibrational Hamiltonian of CZ(3) group is expressed in a simple form with a clear physical picture. This Hamiltonian is used to investigate the H + CH(4) → H(2) + CH(3) reaction on the Jordan-Gilbert potential energy surface. The total reaction probabilities are calculated for the initial ground state, and umbrella, bending, symmetric, and asymmetric stretching excited states of CH(4) with total angular momentum J = 0. The integral cross sections for the reaction are also studied for these initial vibrational states with a centrifugal-sudden approximation. The total integral cross sections for the asymmetric stretching vibrational excited state are in good agreement with the experimental observations. The results also showed the difference of dynamical behavior between reactions from symmetric and asymmetric stretching excited states. The thermal rate constants are calculated for the temperature range T = 250-2000 K and compared with the experimental and other theoretical results.

  17. Water Transport in the Micro Porous Layer and Gas Diffusion Layer of a Polymer Electrolyte Fuel Cell

    Science.gov (United States)

    Qin, C.; Hassanizadeh, S. M.

    2015-12-01

    In this work, a recently developed dynamic pore-network model is presented [1]. The model explicitly solves for both water pressure and capillary pressure. A semi-implicit scheme is used in updating water saturation in each pore body, which considerably increases the numerical stability at low capillary number values. Furthermore, a multiple-time-step algorithm is introduced to reduce the computational effort. A number of case studies of water transport in the micro porous layer (MPL) and gas diffusion layer (GDL) are conducted. We illustrate the role of MPL in reducing water flooding in the GDL. Also, the dynamic water transport through the MPL-GDL interface is explored in detail. This information is essential to the reduced continua model (RCM), which was developed for multiphase flow through thin porous layers [2, 3]. C.Z. Qin, Water transport in the gas diffusion layer of a polymer electrolyte fuel cell: dynamic pore-network modeling, J Electrochimical. Soci., 162, F1036-F1046, 2015. C.Z. Qin and S.M. Hassanizadeh, Multiphase flow through multilayers of thin porous media: general balance equations and constitutive relationships for a solid-gas-liquid three-phase system, Int. J. Heat Mass Transfer, 70, 693-708, 2014. C.Z. Qin and S.M. Hassanizadeh, A new approach to modeling water flooding in a polymer electrolyte fuel cell, Int. J. Hydrogen Energy, 40, 3348-3358, 2015.

  18. The anionic biosurfactant rhamnolipid does not denature industrial enzymes

    Directory of Open Access Journals (Sweden)

    Jens Kvist Madsen

    2015-04-01

    Full Text Available Biosurfactants (BS are surface-active molecules produced by microorganisms. Their combination of useful properties and sustainable production make them promising industrial alternatives to petrochemical and oleochemical surfactants. Here we compare the impact of the anionic BS rhamnolipid (RL and the conventional/synthetic anionic surfactant sodium dodecyl sulfate (SDS on the structure and stability of three different commercially used enzymes, namely the cellulase Carezyme® (CZ, the phospholipase Lecitase Ultra® (LT and the α-amylase Stainzyme® (SZ. Our data reveal a fundamental difference in their mode of interaction. SDS shows great diversity of interaction towards the different enzymes. It efficiently unfolds both LT and CZ, but LT is unfolded by SDS through formation of SDS clusters on the protein well below the cmc, while CZ is only unfolded by bulk micelles and on average binds significantly less SDS than LT. SDS binds with even lower stoichiometry to SZ and leads to an increase in thermal stability. In contrast, RL does not affect the tertiary or secondary structure of any enzyme at room temperature, has little impact on thermal stability and only binds detectably (but at low stoichiometries to SZ. Furthermore all enzymes maintain activity at both monomeric and micellar concentrations of RL. We conclude that RL, despite its anionic charge, is a surfactant that does not compromise the structural integrity of industrially relevant proteins. This makes RL a promising alternative to current synthetic anionic surfactants in a wide range of commercial applications.

  19. Comparison of temperature and moisture requirements for sporulation of Aspergillus flavus sclerotia on natural and artificial substrates.

    Science.gov (United States)

    Giorni, Paola; Camardo Leggieri, Marco; Magan, Naresh; Battilani, Paola

    2012-06-01

    A key step in the infection cycle by Aspergillus flavus in maize is sporulation of sclerotia present in soil or in crop debris. However, little information is available on this critical and important phase. This study included experiments on artificial (Czapek Dox Agar (CZ)) and natural (maize stalks) substrates under different conditions of temperature (T; from 5 to 45 °C) and water activity (a(w); from 0.50 to 0.99) levels to quantify sporulation from sclerotia. The mean numbers of spores were higher on defined nutritional medium in vitro on CZ agar than on maize stalks (4.5×10(6) spores/sclerotium versus 4.2×10(4) spores/sclerotium) with production initiated after 6 and 24h, respectively. Surprisingly, the optimal temperature was found at 30-35 °C for CZ agar (9.23×10(6) spores/sclerotium) and to be 20-25 °C for maize stalks (6.26×10(4) spores/sclerotium). Water stress imposition only reduced sporulation at ≤0.90 a(w.) With more available water no significant differences were found between 0.90 and 0.99 a(w). This type of data is critical in the development of a mechanistic model to predict the infection cycle of A. flavus in maize in relation to meteorological conditions.

  20. Particle detectors made of high-resistivity Czochralski silicon

    CERN Document Server

    Härkönen, J; Ivanov, A; Li, Z; Luukka, Panja; Pirojenko, A; Riihimaki, I; Tuominen, E; Tuovinen, E; Verbitskaya, E; Virtanen, A

    2005-01-01

    We have processed pin-diodes and strip detectors on n- and p-type high-resistivity silicon wafers grown by magnetic Czochralski method. The Czochralski silicon (Cz-Si) wafers manufactured by Okmetic Oyj have nominal resistivity of 900 Omega cm and 1.9 kOmega cm for n- and p-type, respectively. The oxygen concentration in these substrates is slightly less than typically in wafers used for integrated circuit fabrication. This is optimal for semiconductor fabrication as well as for radiation hardness. The radiation hardness of devices has been investigated with several irradiation campaigns including low- and high-energy protons, neutrons, gamma-rays, lithium ions and electrons. Cz-Si was found to be more radiation hard than standard Float Zone silicon (Fz-Si) or oxygenated Fz-Si. When irradiated with protons, the full depletion voltage in Cz-Si has not exceeded its initial value of 300 V even after the fluence of 5 multiplied by 10**1**4 cm**-**2 1-MeV eq. n cm **-**2 that equals more than 30 years operation of...

  1. Thermal-capillary analysis of Czochralski and liquid encapsulated Czochralski crystal growth

    Science.gov (United States)

    Derby, J. J.; Brown, R. A.

    1986-01-01

    Results are presented from finite element analysis of the Czochralski (CZ) and Liquid Encapsulated Czochralski (LEC) crystal growth processes based on a thermal-capillary model which governs the heat transfer in the system simultaneously with setting the shapes of the melt/solid interface, the melt and encapsulant menisci, and the radius of a steadily growing crystal. Calculations are performed for the small-scale growth of silicon (CZ) and gallium arsenide (LEC). The effects of melt volume and crucible position relative to the heater on the radius of the crystal and the shape of the melt/solid interface are predicted for the CZ system, and the importance of including an accurate representation of the melt meniscus for modeling the process is demonstrated. The additional effect of an encapsulant layer on heat transfer is treated for the LEC method for the cases of totally transparent and opaque encapsulant. The responses of these LEC prototype systems are examined for changes in pull rate and encapsulant volume.

  2. Photometry of some neglected bright cataclysmic variables and candidates

    Science.gov (United States)

    Bruch, Albert

    2017-04-01

    As part of an effort to better characterize bright cataclysmic variables (CVs) which have received little attention in the past light curves of four confirmed systems (CZ Aql, BO Cet, V380 Oph and EF Tuc) and one candidate (Lib 3) are analyzed. For none of these stars time resolved photometry has been published previously. While no variability was found in the case of Lib 3, which thus cannot be confirmed as a CV, the light curves of all other targets are dominated by strong flickering. Modulations on hourly time scales superimposed on the flickering can probably be related to orbital variations in BO Cet and V380 Oph, but not in CZ Aql and EF Tuc. Variations on the time scale of 10 min in CZ Aql, while not yet constituting convincing evidence, together with previous suspicions of a magnetically channeled accretion flow may point at an intermediate polar nature of this star. Some properties of the flickering are quantified in an effort to enlarge the data base for future comparative flickering studies in CVs and to refine the classification of the target stars.

  3. Event-related potentials reflect the efficacy of pharmaceutical treatments in children and adolescents with attention deficit/hyperactivity disorder.

    Science.gov (United States)

    Yamamuro, Kazuhiko; Ota, Toyosaku; Iida, Junzo; Nakanishi, Yoko; Matsuura, Hiroki; Uratani, Mitsuhiro; Okazaki, Kosuke; Kishimoto, Naoko; Tanaka, Shohei; Kishimoto, Toshifumi

    2016-08-30

    Few objective biological measures of pharmacological treatment efficacy exist for attention deficit/hyperactivity disorder (ADHD). Although we have previously demonstrated that event-related potentials (ERPs) reflect the effects of osmotic-release methylphenidate in treatment of naïve pediatric patients with ADHD, whether this is true for the therapeutic effects of atomoxetine (ATX) is unknown. Here, we used the Japanese version of the ADHD rating-scale IV to evaluate 14 patients with ADHD, and compared their ERP data with 14 age- and sex-matched controls. We measured P300 and mismatch negativity (MMN) components during an auditory oddball task before treatment (treatment naïve) and after 2 months of ATX treatment. Compared with controls, P300 components at baseline were attenuated and prolonged in the ADHD group at Fz (fronto-central), Cz (centro-parietal), Pz (parietal regions), C3 and C4 electrodes. ATX treatment reduced ADHD symptomology, and after 2 months of treatment, P300 latencies at Fz, Cz, Pz, C3, and C4 electrodes were significantly shorter than those at baseline. Moreover, MMN amplitudes at Cz and C3 electrodes were significantly greater than those at baseline. Thus, ERPs may be useful for evaluating the pharmacological effects of ATX in pediatric and adolescent patients with ADHD.

  4. Effect of the packing structure of silicon chunks on the melting process and carbon reduction in Czochralski silicon crystal growth

    Science.gov (United States)

    Liu, Xin; Nakano, Satoshi; Kakimoto, Koichi

    2017-06-01

    Carbon (C) contamination in Czochralski silicon (CZ-Si) crystal growth mainly originates from carbon monoxide (CO) generation on the graphite components, which reaches a maximum during the melting stage. Loading a crucible with poly-Si feedstock includes many technical details for optimization of the melting and growth processes. To investigate the effect of the packing structure of Si chunks on C accumulation in CZ-Si crystal growth, transient global simulations of heat and mass transport were performed for the melting process with different packing structures of poly-Si. The heat transport modeling took into account the effective thermal conductivity (ETC) of the Si feedstock, which is affected by the packing structure. The effect of the chunk size on the melting process and C accumulation were investigated by parametric studies of different packing structures. The heat transport and melting process in the crucible were affected by the ETC and the emissivity of the Si feedstock. It was found that smaller Si chunks packed in the upper part could speed up the melting process and smooth the power profile. Decreasing the duration of the melting process is favorable for reduction of C contamination in the Si feedstock. Parametric studies indicated that optimization of the melting process by the packing structure is possible and essential for C reduction in CZ-Si crystal growth.

  5. Análise da distribuição de potência cortical em função do aprendizado de datilografia Analisis da distribuición de potencia cortical en función del aprendizado de dactilografia Analysis of cortical power distribution as a function of the typewriting skill

    Directory of Open Access Journals (Sweden)

    Victor Hugo Bastos

    2004-12-01

    Full Text Available O objetivo do presente estudo foi investigar alterações nos padrões eletroencefalográficos de sujeitos normais e destros durante o aprendizado motor de uma tarefa manual. Estudos recentes têm demonstrado que o córtex cerebral é suscetível a modificações em vários aspectos durante a aprendizagem e que tais alterações nos padrões eletrocorticais são resultado da aquisição de habilidades motoras e consolidação de memória. Para tal, a atividade elétrica cortical dos sujeitos foi analisada antes e depois da prática motora. Os dados foram captados pelo Braintech 3000 e analisados pelo programa Neurometrics. Para a análise estatística, variáveis comportamentais tais como tempo e erro foram observadas através de uma ANOVA one-way, blocos como efeito principal. Na variável neurofisiológica, potência absoluta, foi utilizado um teste t pareado a fim de detectar alterações entre os momentos pré e pós-aprendizagem, e diferentes eletrodos, CZ-C3/CZ-C4 em teta e alfa, e O1-P3/T3-F7 em beta. Os resultados principais demonstraram mudança na performance através das variáveis tempo e número de erros. Concomitantemente, foi verificado aumento de potência na banda alfa sobre áreas centrais (CZ-C3/CZ-C4 e diminuição em beta localizada na área temporoparietal esquerda (O1-P3/T3-F7. Alterações na banda teta, como demonstradas em outros experimentos, não ocorreram neste estudo. Tais resultados sugerem uma adaptação do córtex sensório-motor em que a alteração da atividade elétrica cortical é condizente com uma transição ao automatismo motor.El objetivo del presente estudio fue el de investigar alteraciones en los padrones electroencefalográficos de sujetos normales y diestros durante el aprendizaje motor de una tarea manual Estudios recientes tienen demostrado que en el cortex cervical es susceptible a varias modificaciones en varios aspectos durante el aprendizaje, y que tales alteraciones en los padrones

  6. Pozvánka na konferenci "Vzdělávání v ochraně přírody a krajiny"

    Directory of Open Access Journals (Sweden)

    Jiří Dlouhý

    2010-12-01

    Podmínkou účasti na konferenci je registrace na webových stránkách projektu ENVIRUPwww.envirup.upol.cz od 1.12.2010. Na tomto webu budou uveřejněny podrobnější informace a upřesněný program konference na základě výběru konferenčních příspěvků.   Bližší informace: Doc. Ing. Ivo Machar, Ph.D., předseda organizačního výboru ( ivo.machar@upol.cz; tel. +420 585 635 188   V rámci projektu: „Environmentální vzdělávání rozvíjející uplatnění v praxi“ reg. číslo: CZ.1.07/2.2.00/07.0086

  7. Structural analysis and implicit 3D modelling of high-grade host rocks to the Venetia kimberlite diatremes, Central Zone, Limpopo Belt, South Africa

    Science.gov (United States)

    Basson, I. J.; Creus, P. K.; Anthonissen, C. J.; Stoch, B.; Ekkerd, J.

    2016-05-01

    The Beit Bridge Complex of the Central Zone (CZ) of the Limpopo Belt hosts the 519 ± 6 Ma Venetia kimberlite diatremes. Deformed shelf- or platform-type supracrustal sequences include the Mount Dowe, Malala Drift and Gumbu Groups, comprising quartzofeldspathic units, biotite-bearing gneiss, quartzite, metapelite, metacalcsilicate and ortho- and para-amphibolite. Previous studies define tectonometamorphic events at 3.3-3.1 Ga, 2.7-2.5 Ga and 2.04 Ga. Detailed structural mapping over 10 years highlights four deformation events at Venetia. Rules-based implicit 3D modelling in Leapfrog Geo™ provides an unprecedented insight into CZ ductile deformation and sheath folding. D1 juxtaposed gneisses against metasediments. D2 produced a pervasive axial planar foliation (S2) to isoclinal F2 folds. Sheared lithological contacts and S2 were refolded into regional, open, predominantly southward-verging, E-W trending F3 folds. Intrusion of a hornblendite protolith occurred at high angles to incipient S2. Constrictional-prolate D4 shows moderately NE-plunging azimuths defined by elongated hornblendite lenses, andalusite crystals in metapelite, crenulations in fuchsitic quartzite and sheath folding. D4 overlaps with a: 1) 2.03-2.01 Ga regional M3 metamorphic overprint; b) transpressional deformation at 2.2-1.9 Ga and c) 2.03 Ga transpressional, dextral shearing and thrusting around the CZ and d) formation of the Avoca, Bellavue and Baklykraal sheath folds and parallel lineations.

  8. Modeling turbulent mixing and sand distribution in the bottom boundary layer

    CERN Document Server

    Absi, Rafik

    2011-01-01

    For the calculation of turbulent mixing in the bottom boundary layer, we present simple analytical tools for the mixing velocity wm and the mixing length lm. Based on observations of turbulence intensity measurements, the mixing velocity wm is represented by an exponential function decaying with z. We suggest two theoretical functions for the mixing length, a first lm1 obtained from the k-equation written as a constant modeled fluctuating kinetic energy flux and a second lm2 based on von K\\'arm\\'an's similarity hypothesis. These analytical tools were used in the finite-mixing-length model of Nielsen and Teakle (2004). The modeling of time-mean sediment concentration profiles C(z) over wave ripples shows that at the opposite of the second equation lm2 which increases the upward convexity of C(z), the first equation lm1 increases the upward concavity of C(z) and is able to reproduce the shape of the measured concentrations for coarse sand.

  9. The effects of bromazepam over the central and frontal areas during a motor task: an EEG study

    Directory of Open Access Journals (Sweden)

    Suzete Fortunato

    2015-04-01

    Full Text Available The present study investigates the influence of bromazepam while executing a motor task. Specifically, we intend to analyze the changes in alpha absolute power under two experimental conditions, bromazepam and placebo. We also included analyses of theta and beta frequencies. We collected electroencephalographic data before, during, and after motor task execution. We used a Two Way ANOVA to investigate the condition (PL × Br6 mg and moment (pre and post variables for the following electrodes: Fp1, Fp2, F7, F3, Fz, F4, F8, C3, CZ and C4. We found a main effect for condition on the electrodes FP1, F7, F3, Fz, F4, C3 and CZ, for alpha and beta bands. For beta band we also found a main effect for condition on the electrodes Fp2, F8 and C4; for theta band we identified a main effect for condition on C3, Cz and C4 electrodes. This finding suggests that the motor task did not have any influence on the electrocortical activity in alpha, and that the existing modifications were a consequence due merely to the drug use. Despite its anxiolytic and sedative action, bromazepam did not show any significant changes when the individuals executed a finger extension motor task.

  10. Gamma band oscillations under influence of bromazepam during a sensorimotor integration task: an EEG coherence study.

    Science.gov (United States)

    Minc, Daniel; Machado, Sergio; Bastos, Victor Hugo; Machado, Dionis; Cunha, Marlo; Cagy, Mauricio; Budde, Henning; Basile, Luis; Piedade, Roberto; Ribeiro, Pedro

    2010-01-18

    The goal of the present study was to explore the dynamics of the gamma band using the coherence of the quantitative electroencephalography (qEEG) in a sensorimotor integration task and the influence of the neuromodulator bromazepam on the band behavior. Our hypothesis is that the needs of the typewriting task will demand the coupling of different brain areas, and that the gamma band will promote the binding of information. It is also expected that the neuromodulator will modify this coupling. The sample was composed of 39 healthy subjects. We used a randomized double-blind design and divided subjects into three groups: placebo (n=13), bromazepam 3mg (n=13) and bromazepam 6 mg (n=13). The two-way ANOVA analysis demonstrated a main effect for the factors condition (i.e., C4-CZ electrode pair) and moment (i.e., C3-CZ, C3-C4 and C4-CZ pairs of electrodes). We propose that the gamma band plays an important role in the binding among several brain areas in complex motor tasks and that each hemisphere is influenced in a different manner by the neuromodulator. (c) 2009 Elsevier Ireland Ltd. All rights reserved.

  11. The effects of bromazepam over the central and frontal areas during a motor task: an EEG study.

    Science.gov (United States)

    Fortunato, Suzete; Tanaka, Guaraci Ken; Araújo, Fernanda; Bittencourt, Juliana; Aprigio, Danielle; Gongora, Mariana; Teixeira, Silmar; Pompeu, Fernando Augusto Monteiro Saboia; Cagy, Mauricio; Basile, Luis F; Ribeiro, Pedro; Velasques, Bruna

    2015-04-01

    The present study investigates the influence of bromazepam while executing a motor task. Specifically, we intend to analyze the changes in alpha absolute power under two experimental conditions, bromazepam and placebo. We also included analyses of theta and beta frequencies. We collected electroencephalographic data before, during, and after motor task execution. We used a Two Way ANOVA to investigate the condition (PL × Br6 mg) and moment (pre and post) variables for the following electrodes: Fp1, Fp2, F7, F3, Fz, F4, F8, C3, CZ and C4. We found a main effect for condition on the electrodes FP1, F7, F3, Fz, F4, C3 and CZ, for alpha and beta bands. For beta band we also found a main effect for condition on the electrodes Fp2, F8 and C4; for theta band we identified a main effect for condition on C3, Cz and C4 electrodes. This finding suggests that the motor task did not have any influence on the electrocortical activity in alpha, and that the existing modifications were a consequence due merely to the drug use. Despite its anxiolytic and sedative action, bromazepam did not show any significant changes when the individuals executed a finger extension motor task.

  12. Characterization of the loss of the dislocation-free growth during Czochralski silicon pulling

    Science.gov (United States)

    Lanterne, Adeline; Gaspar, Guilherme; Hu, Yu; Øvrelid, Eivind; Di Sabatino, Marisa

    2017-01-01

    The loss of the dislocation-free growth (structure loss) during Czochralski (Cz) silicon pulling can have a strong negative impact on the production yield of the Cz photovoltaic industry. As almost no publication has been dedicated to this phenomenon in the past, this paper aims at investigate in detail the loss of the dislocation-free growth and its origin by characterizing an industrial-scale n-type Cz silicon ingot exhibiting such issue. After the occurrence of a perturbation, generation and propagation of slip dislocations in the already grown crystal have been observed. These dislocations, generated over the whole ingot cross-section, propagate with the solidification front during further growth. Additional small perturbations seem then to be responsible for their multiplication together with the transition to a multicrystalline structure. Investigations were conducted to find the perturbation causing the structure loss in the ingot. A pinhole, small gas bubble of 0.5 mm diameter, was identified as the main cause for the generation of dislocations.

  13. RAPD-SCAR marker and genetic relationship analysis of three Demodex species (Acari: Demodicidae).

    Science.gov (United States)

    Zhao, Ya-E; Wu, Li-Ping

    2012-06-01

    For a long time, classification of Demodex mites has been mainly based on their hosts and phenotype characteristics. The study was the first to conduct molecular identification and genetic relationship analysis for six isolates of three Demodex species by random amplified polymorphic DNA (RAPD) and sequence-characterized amplified region (SCAR) marker. Totally, 239 DNA fragments were amplified from six Demodex isolates with 10 random primers in RAPD, of which 165 were polymorphic. Using a single primer, at least five fragments and at most 40 in the six isolates were amplified, whereas within a single isolate, a range of 35-49 fragments were amplified. DNA fingerprints of primers CZ 1-9 revealed intra- and interspecies difference in six Demodex isolates, whereas primer CZ 10 only revealed interspecies difference. The genetic distance and dendrogram showed the intraspecific genetic distances were closer than the interspecific genetic distances. The interspecific genetic distances of Demodex folliculorum and Demodex canis (0.7931-0.8140) were shorter than that of Demodex brevis and D. canis (0.8182-0.8987). The RAPD-SCAR marker displayed primer CZ 10 could be applied to identify the three Demodex species. The 479-bp fragment was specific for D. brevis, and the 261-bp fragment was specific for D. canis. The conclusion was that the RAPD-SCAR multi-marker was effective in molecular identification of three Demodex species. The genetic relationship between D. folliculorum and D. canis was nearer than that between D. folliculorum and D. brevis.

  14. Photometry of some neglected bright cataclysmic variables and candidates

    CERN Document Server

    Bruch, Albert

    2016-01-01

    As part of an effort to better characterize bright cataclysmic variables (CVs) which have received little attention in the past light curves of four confirmed systems (CZ Aql, BO Cet, V380 Oph and EF Tuc) and one candidate (Lib 3) are analyzed. For none of these stars time resolved photometry has been published previously. While no variability was found in the case of Lib 3, which thus cannot be confirmed as a CV, the light curves of all other targets are dominated by strong flickering. Modulations on hourly time scales superimposed on the flickering can probably be related to orbital variations in BO Cet and V380 Oph, but not in CZ Aql and EF Tuc. Variations on the time scale of 10 minutes in CZ Aql, while not yet constituting convincing evidence, together with previous suspicions of a magnetically channeled accretion flow may point at an intermediate polar nature of this star. Some properties of the flickering are quantified in an effort to enlarge the data base for future comparative flickering studies in ...

  15. Changes in absolute theta power in bipolar patients during a saccadic attention task.

    Science.gov (United States)

    Cartier, Consuelo; Diniz, Claudia; Di Girogio, Luiza; Bittencourt, Juliana; Gongora, Mariana; Ken Tanaka, Guaraci; Teixeira, Silmar; Basile, Luis F; Novis, Fernanda; Angélica Silveira, Luciana; da Silva, Rafael de Assis; Cagy, Mauricio; Cheniaux, Elie; Ribeiro, Pedro; Velasques, Bruna

    2015-08-30

    The present study analyzed absolute theta power (ATP) in brain areas involved with attention in the three phase of BD while the patients performing a saccadic attention task. We hypothesized that patients in depression and mania states show a higher ATP compared to euthymic patients, since a higher ATP is indicative of attention deficit. We analyzed the frontal (F7, F3, Fz, F4 and F8) and central (C3, Cz and C4) areas. Thirty bipolar patients were enrolled in this study. The subjects performed a saccadic attention task while their brain activity pattern was recorded using quantitative electroencephalography (20 channels). Our results showed a main effect for group over C3, C4, Cz, F7, F4, F8 electrodes, and a main effect for moment over Cz, F7, F8 electrodes. These results indicate that both task and groups produce changes in theta activity in distinct cortical areas that participate in the organization of attention. Our results therefore demonstrate that, although it is well established in the literature that theta has a relevant role in the attention process, it is necessary to deepen the investigations to better understand the specifics of theta during visual processing tasks that have a demand for attention.

  16. Growth of Czochralski silicon under magnetic field

    Institute of Scientific and Technical Information of China (English)

    XU Yuesheng; LIU Caichi; WANG Haiyun; ZHANG Weilian; YANG Qingxin; LI Yangxian; REN Binyan; LIU Fugui

    2004-01-01

    Growth of Czochralski (CZ) silicon crystals under the magnetic field induced by a cusp-shaped permanent magnet of NdFeB has been investigated. It is found that the mass transport in silicon melt was controlled by its diffusion while the magnetic intensity at the edge of a crucible was over 0.15 T. In comparison with the growth of conventional CZ silicon without magnetic field, the resistivity homogeneity of the CZ silicon under the magnetic field was improved. Furthermore, the Marangoni convection which has a significant influence on the control of oxygen concentration was observed on the surface of silicon melt. It is suggested that the crystal growth mechanism in magnetic field was similar to that in micro-gravity if a critical value was reached, named the growth of equivalent micro-gravity. The relationship of the equivalent micro-gravity and the magnetic intensity was derived as g=(v0/veff)g0. Finally, the orders of the equivalent micro-gravity corresponding to two crucibles with characteristic sizes were calculated.

  17. Effects of Characteristics of Fly Ash on the Properties of Geopolymer

    Institute of Scientific and Technical Information of China (English)

    杜海燕; 杨立娜; 高婉琪; 刘家臣

    2016-01-01

    The properties of two types of fly ash geopolymers made from class F fly ashes produced in wet bottom and dry bottom boilers were investigated in the present study. The source material used in the geopolymer concrete was activated with sodium hydroxide and sodium silicate solution. The results revealed that the geopolymer pro-duced with wet bottom boiler fly ash(CZ-FA)hardened quickly, and had higher early-age strength and lower shrinkage than the geopolymer produced with dry bottom boiler fly ash(SX-FA). The compressive strength of the two geopolymers made from CZ-FA and SX-FA was 45 MPa and 15 MPa respectively when cured at 60℃ and delayed for 14 d. However, after 90 days’ delay, the compressive strength of both the samples is almost the same, up to 80 MPa. Nearly 20% volume shrinkage of the samples made from SX-FA was much higher than that made from CZ-FA, which was almost zero. XRD, SEM/EDS and FT-IR were used to analyze the main reason of the dif-ferences.

  18. Different Culture Metabolites of the Red Sea Fungus Fusarium equiseti Optimize the Inhibition of Hepatitis C Virus NS3/4A Protease (HCV PR)

    Science.gov (United States)

    Hawas, Usama W.; Al-Farawati, Radwan; Abou El-Kassem, Lamia T.; Turki, Adnan J.

    2016-01-01

    The endophytic fungus Fusarium equiseti was isolated from the brown alga Padina pavonica, collected from the Red Sea. The fungus was identified by its morphology and 18S rDNA. Cultivation of this fungal strain in biomalt-peptone medium led to isolation of 12 known metabolites of diketopeprazines and anthraquinones. The organic extract and isolated compounds were screened for their inhibition of hepatitis C virus NS3/4A protease (HCV PR). As a result, the fungal metabolites showed inhibition of HCV protease (IC50 from 19 to 77 μM), and the fungus was subjected to culture on Czapek’s (Cz) media, with a yield of nine metabolites with potent HCV protease inhibition ranging from IC50 10 to 37 μM. The Cz culture extract exhibited high-level inhibition of HCV protease (IC50 27.6 μg/mL) compared to the biomalt culture extract (IC50 56 μg/mL), and the most potent HCV PR isolated compound (Griseoxanthone C, IC50 19.8 μM) from the bio-malt culture extract showed less of an inhibitory effect compared to isolated ω-hydroxyemodin (IC50 10.7 μM) from the optimized Cz culture extract. Both HCV PR active inhibitors ω-hydroxyemodin and griseoxanthone C were considered as the lowest selective safe constituents against Trypsin inhibitory effect with IC50 48.5 and 51.3 μM, respectively. PMID:27775589

  19. New high performance Si for optical devices

    Science.gov (United States)

    Tenma, T.; Matsuzaka, M.; Sako, R.; Takase, K.; Chiba, K.

    2016-05-01

    Against the backdrop of a growing demand in the areas of smart buildings, security, vehicle installation, and other applications, the market for far infrared cameras is expected to grow significantly in the future. However, since germanium (Ge) and chalcogenide glass, which have been used as the lens materials of far infrared cameras, are very expensive or highly toxic, there are some problems supporting the growing demand. We have therefore focused attention on silicon, which is inexpensive and less toxic. Although silicon has been used as a lens material of far infrared cameras, there are some problems remaining to be solved: Cz silicon is inexpensive but delivers low transmittance, and Fz silicon delivers sufficient transmittance but is expensive. We have developed New Cz silicon, which delivers high transmittance as Fz silicon does, and is inexpensive as conventional Cz silicon is. We have already started its sample work at both companies in Japan and overseas and have obtained excellent performance results. Mass production is scheduled to start in this fiscal year.

  20. Doped and non-doped organic light-emitting diodes based on a yellow carbazole emitter into a blue-emitting matrix

    CERN Document Server

    Choukri, H; Forget, S; Chenais, S; Castex, M C; Geffroy, B; Ades, D; Siove, A; Choukri, Hakim; Fischer, Alexis; Forget, Sebastien; Chenais, Sebastien; Castex, Marie-Claude; Geffroy, Bernard; Ades, Dominique; Siove, Alain

    2007-01-01

    A new carbazole derivative with a 3,3'-bicarbazyl core 6,6'-substituted by dicyanovinylene groups (6,6'-bis(1-(2,2'-dicyano)vinyl)-N,N'-dioctyl-3,3'-bicarbazyl; named (OcCz2CN)2, was synthesized by carbonyl-methylene Knovenagel condensation, characterized and used as a component of multilayer organic light-emitting diodes (OLEDs). Due to its -donor-acceptor type structure, (OcCz2CN)2 was found to emit a yellow light at max=590 nm (with the CIE coordinates x=0.51; y = 0.47) and was used either as a dopant or as an ultra-thin layer in a blue-emitting matrix of 4,4'-bis(2,2'-diphenylvinyl)-1,1'-biphenyl (DPVBi). DPVBi (OcCz2CN)2-doped structure exhibited, at doping ratio of 1.5 weight %, a yellowish-green light with the CIE coordinates (x = 0.31; y = 0.51), an electroluminescence efficiency EL=1.3 cd/A, an external quantum efficiency ext= 0.4 % and a luminance L= 127 cd/m2 (at 10 mA/cm2) whereas for non-doped devices utilizing the carbazolic fluorophore as a thin n...