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Wyszukujesz frazę "Klein, G." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-15 z 15
    Tytuł:
    An unusual trackway of a possibly bipedal archosaur from the Late Triassic of the Sichuan Basin, China
    Autorzy:
    Xing, L.
    Peng, G.
    Marty, D.
    Ye, Y.
    Klein, H.
    Li, J.
    Gierlinski, G.D.
    Shu, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/22572.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    The Longguan dinosaur tracksite in the Sichuan Basin (China) is described. It is located in the uppermost part of the Upper Triassic Xujiahe Formation and displays a single, unusual trackway consisting of 19 deeply impressed pes imprints. All tracks have suffered from erosion over many years of exposure, but they still reveal interesting details such as conspicuous elongated grooves, interpreted here as toe and claw drag marks. The trackmaker, a medium-sized archosaur, was walking in a thick and relatively soft layer of sand. The elongated, oval shape of the footprints resembles the ichnogenus Eosauropus from North America and Europe, assigned to facultative bipedal sauropodomorphs. The Chinese track differs by inward rotation of the footprints toward the midline, whereas in Eosauropus, these are turned strictly outward. Other ichnotaxa and possible trackmakers are discussed, but presently, a distinct assignment cannot be given. The Longguan trackway enlarges the scarce footprint record from the Triassic of China.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diffraction of light by acoustic waves in liquids
    Autorzy:
    Wijewardena Gamalath, K. A. I. L.
    Jayawardena, G. L. A. U.
    Powiązania:
    https://bibliotekanauki.pl/articles/411835.pdf
    Data publikacji:
    2012
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    opóźnienie fazy
    akustyczno-optyczne interakcje
    parametr Kleina-Cooka
    dyfrakcja Bragga
    dyfrakcja Ramana-Natha
    acusto-optic interactions
    Raman-Nath and Bragg diffraction
    Klein Cook parameter
    phase delay
    Opis:
    For the acusto-optic interactions in liquids, an equation for the diffraction light intensity was obtained in terms of Klein Cook parameter Q. With optimized parameters for Q, incident light wave length of _=633 nm, sound wave length of _=0.1 mm, acusto-optic interaction length L=0.1 m, and refractive index of the liquid in the range of 1 to 2, the existence of ideal Raman-Nath and Bragg diffractions were investigated in terms of phase delay and incident angle. The ideal Raman-Nath diffraction slightly deviated when the Klein Cook parameter was increased from 0 to 1 for low chase delay values and for large phase delay, the characteristics of the Bessel function disappeared. Higher value of Klein Cook parameter gave Bragg diffraction and ideal Bragg diffraction was obtained for Q~100. A slight variation of the incident angle from Bragg angle had a considerable effect on Bragg diffraction pattern. Klein Cook parameter with the change of acoustic wave frequency was investigated for liquids with refractive index in the range1.3-1.7 and their diffraction patterns were compared with practically applicable acusto-optic crystals. For acusto-optic diffractions in liquids, sound velocity plays an important role in Bragg regime with Q increasing with increasing acoustic frequency. As acoustic wave frequency exceeded 10 MHz most of the liquids reached Bragg regime before these crystals.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2012, 4; 39-57
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Local Magnetometry of $Cu_{0.064}TiSe_{2}$
    Autorzy:
    Pribulová, Z.
    Medvecká, Z.
    Kačmarčík, J.
    Komanický, V.
    Klein, T.
    Husaníková, P.
    Cambel, V.
    Šoltýs, J.
    Karapetrov, G.
    Samuely, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1372336.pdf
    Data publikacji:
    2014-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    74.25.Ha
    74.25.Wx
    Opis:
    Local magnetometry using miniature Hall-probe array was used to study vortex distribution in superconducting single crystal of $Cu_{x}TiSe_{2}$, with x=0.064 and $T_{c}$=3.2 K. We show that vortices after penetration into the sample move towards the center, resulting into a dome-shape field profile. Such a profile is a signature of relatively low pinning. We show that these measured profiles are consistent with a model proposed for the samples in the absence of bulk pinning. Modifications necessary to obtain quantitative agreement between the model and the data are presented.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 1; 370-371
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of monitoring strategies and reference data of the German Environmental Specimen Banking Program
    Autorzy:
    Paulus, M.
    Bartel, M.
    Klein, R.
    Nentwich, K.
    Quack, M.
    Teubner, D.
    Wagner, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/147782.pdf
    Data publikacji:
    2005
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    environmental specimen banking
    effect monitoring
    reference system
    critical tissue concentration
    bioaccumulation
    biometric specimen characterization
    Opis:
    The constitution of the German Environmental Specimen Bank (ESB) has started in 1985, subsequent to a successful pilot study concerning the feasibility. Since that time, a multitude of technological and methodical standards have been developed, which allow for a high quality of the storage-samples and of the specimen characterization. While the storage-samples are kept for retrospective analysis, by now, already comprehensive data on the material-developing in the environment are available due to a real time monitoring of selected environmental chemicals over a period of up to twenty years. Thus, spatial and temporal trends can be described. Since the state of knowledge on critical tissue concentrations in the sublethal range is extremely low at present, it is however not possible to accomplish a direct assessment of relevancy of the substance concentrations. Hence, within the scope of the German ESB Program, the following strategies on assessment of relevancy are observed: use of biomarkers, histopathological examinations, biometric specimen characterization, use of ecological indicator groups, and development of a reference system with analytical and biometric data. Thus, for example endocrine effects in male breams in the river Saar, which correlate directly to operational discharges from municipal sewage plants, could be detected. By histopathological examinations, fibrotic and necrotic tissue adaptations on the gonads had been ascertained cumulatively, which unambiguously imply a restricted fertility of the male breams. In the river Rhine, an improved growth along the timeline could be described on the basis of biometric characterization of breams, which is regarded as rate for the reaction to all structural and material changes in the water body. Presently, with the development of a reference system based on the data collected in the scope of the Environmental
    Źródło:
    Nukleonika; 2005, 50,suppl.1; 53-58
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modern tendencies in the design of autonomous utility vehicles
    Autorzy:
    Mężyk, A.
    Czapla, T.
    Klein, W.
    Krzystała, E.
    Gembalczyk, G.
    Domagała, D.
    Dudek, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/245027.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    autonomous vehicles
    machine design
    utility vehicles
    hybrid drive
    Opis:
    The article discusses the role of the modern approach to the design of autonomous utility vehicles. The study has been exemplified by a currently designed multi-purpose hybrid engineer vehicle. The article covers the application of modern hybrid drive and the suspension allowing for the regulation of the tension wheel. The drive system used in the described vehicle is a serial type. In contrast to the conventional solutions used so far in a similar vehicle, this system eliminate heavy and difficult parts to produce (e.g., gears) which allows to significant reduction of a vehicle's weight. The suspension system is based on the classical concept - with a torsional shafts. A movable tension wheel is an innovative element, which has been used in this suspension system. When the wheel is in the lower position the area of pressure increased so the force exerted on the ground is less. This option is useful in difficult, muddy off-road conditions. The Volvo Company wants to apply similar capabilities in their prototype diggers. In the article, the importance of the external appearance of the vehicle has been considered as well. A removable cab allows the remote control of the vehicle at any time and the same has been provided as an example of a modern solution concerning the external appearance of the vehicle.
    Źródło:
    Journal of KONES; 2015, 22, 1; 227-234
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena stanu sanitarnego powietrza w otoczeniu wybranej oczyszczalni ścieków
    Assessing air quality in the proximity of a municipal sewage treatment plant: A case study
    Autorzy:
    Kołwzan, B.
    Jadczyk, P.
    Pasternak, G.
    Głuszczak, J.
    Pawlik, M.
    Krawczyńska, M.
    Klein, J.
    Rybak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/236866.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
    Tematy:
    oczyszczalnia ścieków
    powietrze atmosferyczne
    bioaerozol
    bakterie
    grzyby mikroskopowe
    sewage treatment plant
    air pollution
    bioaerosol
    bacteria
    fungi
    Opis:
    Omówiono wyniki badań mikrobiologicznych powietrza na terenie sąsiadującym z miejską oczyszczalnią ścieków. Pomiary wykonano w latach 2011-2012, uwzględniając wszystkie pory roku. Podstawą do klasyfikacji stopnia mikrobiologicznego zanieczyszczenia powietrza była liczba bakterii mezofilnych, promieniowców, Pseudomonas fluorescens, gronkowców [alfa]- i [beta]-hemolizujących oraz zarodników grzybów. Wykazano, że liczba mikroorganizmów w powietrzu w otoczeniu oczyszczalni ścieków zależała od pory roku i była bardzo zróżnicowana na poszczególnych stanowiskach badawczych, w wielu przypadkach przekraczając wartości charakterystyczne w powietrzu niezanieczyszczonym. Najwięcej drobnoustrojów w powietrzu stwierdzono latem i jesienią, natomiast najmniejsze wartości oznaczono zimą, z uwagi na niską temperaturę ograniczającą przeżywalność mikroorganizmów. Jednocześnie zaobserwowano wyraźny wzrost liczby mikroorganizmów po stronie zawietrznej. Uzyskane wyniki oraz dane literaturowe potwierdzają potrzebę hermetyzowania obiektów oczyszczalni ścieków, a także objęcia ich systematycznym monitoringiem stanu sanitarnego powietrza atmosferycznego.
    Air in the vicinity of a municipal sewage treatment plant was assessed for microbial quality. Measurements were carried out in the time span of 2011 and 2012, taking into account seasonal patterns of change. Classification of the extent of microbial contamination was based on the number of mesophilic bacteria, actinomycetes, Pseudomonas fluorescens, [alpha]- and [beta]-hemolyzing staphylococci, and fungal spores. It was demonstrated that the number of airborne microorganisms in the vicinity of the sewage treatment plant followed a seasonal pattern and differed from one measuring point to another, in many instances exceeding the characteristic values measured in unpolluted air. The highest number of microorganisms were determined in summer and fall, and the lowest in winter, when low air temperature limited microbial viability. Simultaneously, a noticeable increase in microbial numbers was observed on the lee side. The results obtained in this study, as well as the available literature data, substantiate the need for hermetizing the objects of the sewage treatment plant and subjecting them to periodical air quality monitoring.
    Źródło:
    Ochrona Środowiska; 2012, 34, 2; 9-14
    1230-6169
    Pojawia się w:
    Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Superconducting Transition in Boron Doped Silicon Films
    Autorzy:
    Kociniewski, T.
    Débarre, D.
    Grockowiak, A.
    Kačmarčík, J.
    Marcenat, C.
    Bustarret, E.
    Ortega, L.
    Klein, T.
    Prudon, G.
    Dubois, C.
    Gautier, B.
    Dupuy, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1535297.pdf
    Data publikacji:
    2010-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    74.62.Dh
    73.61.Cw
    74.70.Ad
    Opis:
    We report on a detailed analysis of the superconducting properties of boron-doped silicon films grown along the 001 direction by gas immersion laser doping. This technique is proved to be a powerful technique to dope silicon in the alloying range 2-10 at.% where superconductivity occurs. The superconducting transitions are sharp and well defined both in resistivity and magnetic susceptibility. The variation of $T_{c}$ on the boron concentration is in contradiction with a classical exponential dependence on superconducting parameters. Electrical measurements were performed in magnetic field on the sample with $c_{B}$ = 8 at.% (400 laser shots) which has the highest $T_{c}$ (0.6 K). No hysteresis was found for the transitions in magnetic field, which is characteristic of a type-II superconductor. The corresponding upper critical field was on the order of 1000 G at low temperatures, much smaller than the value previously reported. The temperature dependence of $H_{c2}$ is very well reproduced by the linearized Gorkov equations neglecting spin effects in the very dirty limit. These measurements in magnetic field allow an estimation of the electronic mean-free path, the coherence length, and the London penetration depth within a simple two-band free electron model.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 5; 1026-1027
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Current Annealing on Domain Structure in Amorphous and Nanocrystalline FeCoMoB Microwires
    Autorzy:
    Klein, P.
    Varga, R.
    Onufer, J.
    Ziman, J.
    Badini-Confalonieri, G.
    Vazquez, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032776.pdf
    Data publikacji:
    2017-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Kj
    75.60.Ej
    75.60.Jk
    75.70.Kw
    75.60.Ch
    Opis:
    The influence of current annealing on the complex domain structure in amorphous and nanocrystalline FeCoMoB microwire has been studied. The thickness of radial domain structure together with the switching field of single domain wall change as a consequence of variation of complex internal stress distribution inside metallic core. Firstly, radial domain structure thickness monotonously increases with increasing annealing DC current density for amorphous state. Switching field exhibits local minimum in nanocrystalline sample annealed at 500 MA/m^2 for 10 min when the lowest thickness of outer shell (182 nm) was observed. Such annealed sample (which magnetic properties exhibit excellent temperature stability) is suitable candidate for miniaturized sensor construction for sensing the magnetic field or mechanical stress.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 4; 681-683
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Fixation Patterns on Magnetic Characteristics of Amorphous Glass-Coated Sensoric Microwires
    Autorzy:
    Hudak, R.
    Varga, R.
    Hudak, J.
    Praslicka, D.
    Blazek, J.
    Polacek, I.
    Klein, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1202355.pdf
    Data publikacji:
    2014-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    87.85.G-
    87.85.fk
    85.70.Ay
    Opis:
    Some of the frequent reasons of titanium implant failures in human body are incorrect biomechanical interactions within the tissue-implant interface and inflammatory processes arising around the implant's application area. For both processes, it is crucial to locate them and intervene in time. One of the monitoring possibilities of the mentioned processes is the application of amorphous glass-coated sensoric microwires (AGCSM). Magnetic characteristics of these microwires are influenced by both mechanical tension (magnetoelastic interaction of the magnetic moment with mechanical stress) and by temperature (different coefficient of thermal expansion of the metal core and glass coating). The key task, in order to change the magnetic characteristics of AGCSM from both clinical and scanning point of view, appears to be the fixation pattern of AGCSM in the implant's body. The presented study shows the impact of four types of AGCSM fixation patterns (at one ending, at both endings, in the middle and along the entire length) on the thermal response process tested in laboratory conditions. The obtained results will enable to establish the AGCSM fixation methodology in the implant's body in order to achieve optimal output temperature parameters form the implant and the tissue-implant interface by magnetic contactless measurements.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 1; 417-418
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On soluble groups of automorphisms of nonorientable Klein surfaces
    Autorzy:
    Gromadzki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1214948.pdf
    Data publikacji:
    1992
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Tematy:
    Riemann surfaces
    Klein surfaces
    automorphism groups
    soluble groups
    Opis:
    We classify up to topological type nonorientable bordered Klein surfaces with maximal symmetry and soluble automorphism group provided its solubility degree does not exceed 4. Using this classification we show that a soluble group of automorphisms of a nonorientable Riemann surface of algebraic genus q ≥ 2 has at most 24(q-1) elements and that this bound is sharp for infinitely many values of q.
    Źródło:
    Fundamenta Mathematicae; 1992, 141, 3; 215-227
    0016-2736
    Pojawia się w:
    Fundamenta Mathematicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Satzzeichenitis (?!?) ovvero „Nichts ist mir zu klein…“ – Allererste Notizelchen1 zur Qualitätseinschätzung von Übersetzungen über die Zeichensetzung in grafisch kodierten Texten (Arno Schmidts)
    Punctuation Marks (?!?) or „Nothing is too small for me ...“ – Very First Notes on the Quality Assessment of Translations about Punctuation in Graphically Coded Texts (Arno Schmidt)
    Autorzy:
    Bauske, Bernd G.
    Powiązania:
    https://bibliotekanauki.pl/articles/458719.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
    Tematy:
    Arno Schmidt
    Zeichensetzung
    Übersetzung(en)
    Auszeichnungen
    Gelehrtenrepublik
    Aus_dem_Leben_eines_Fauns
    Übersetzungsqualität
    punctuation
    translation(s)
    awards
    Republic of Letters
    Scenes from the Life
    of a Faun
    translation quality
    Opis:
    Our aim is to relate criteria for quality assessment in translation to micro elements. Punctuation in Arno Schmidt seems to be a good bet as, with him, this supposedly formal element is instrumental in constituting the sense of a text to a degree far beyond standard state-of-the-art routine.
    Der Beitrag versucht an Minimalelementen Übersetzungsqualität festzumachen. Bei Arno Schmidt bietet sich dafür die Zeichensetzung an, da diese in seinen Texten ein konstitutives Element darstellt, das in seiner Komplexität über Standard und Mainstream weit hinausgeht.
    Źródło:
    Linguistische Treffen in Wrocław; 2019, 15; 17-28
    2084-3062
    2657-5647
    Pojawia się w:
    Linguistische Treffen in Wrocław
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    N. Klein Sellea, B. Verschuereb, M. Kindt, E. Meijer, T. Naharia, G. Ben-Shakhar, “Memory Detection: The Effects of Emotional Stimuli”, Biological Psychology 2017, 129, pp. 25–35
    Autorzy:
    Amsel, Tuvya T.
    Powiązania:
    https://bibliotekanauki.pl/articles/523524.pdf
    Data publikacji:
    2018
    Wydawca:
    Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
    Źródło:
    European Polygraph; 2018, 12, 1(43); 37-39
    1898-5238
    2380-0550
    Pojawia się w:
    European Polygraph
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The use of continuous centrifugal gravity concentration in grinding circuit. Modified approach for improved metallurgical performance and reduced grinding requirements
    Autorzy:
    Altun, N. E.
    Sakuhuni, G.
    Klein, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/109786.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    centrifugal gravity concentrator
    grinding
    classification
    liberation
    Opis:
    The use of centrifugal gravity concentration in the closed-grinding circuit of a gold-containing massive sulphide ore was tested on classifier underflow and overflow. A continuous Knelson CVD6 was retrofitted to the hydrocyclone underflow for recovery of Au and Pb at a coarser feed size. The objective of treatment of overflow was recovering unliberated Au prior to flotation. The tests were performed in actual operating conditions at Nyrstar’s Myra Falls Mine. The results of the tests on the cyclone underflow revealed that both liberated and unliberated Au and Pb were recovered by the Centrifugal Variable Discharge (CVD) concentrator. Concentrate grades <60g/Mg Au were attainable at a more than 20% recovery. This application also allowed early and increased Pb recovery before it became gravity unrecoverable by over-grinding. Other benefits included capturing middlings for regrinding as well as potential coarser grinding and increase in mill throughput. A coarse grind also corresponds to a reduction in deformation of Au-particles, and is beneficial for increased Au recovery in downstream processing. Treatment of cyclone overflow by the CVD also provided favourable results. The outcomes included capturing unliberated gold prior to flotation and potentially reducing pumping requirements and reagent consumption. A comparison of the metallurgical performances showed that CVD application on classifier underflow was more effective. The CVD was capable of recovering unliberated gold in sulphides and performed better at a coarser particle size. Therefore, when used with the grinding circuit, a coarser grind can be applied and the CVD could be used to reject gangue at a coarser size.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2015, 51, 1; 115-126
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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