75,588 research outputs found
Influence of gas adsorption on the impedance of porous GaAs
No full textPorous GaAs was formed electrochemically on n-type GaAs in a HF:C2H5OH (1:3) electrolyte. The surface morphology of porous GaAs has been studied using atomic force microscopy (AFM). The hodographs of the total impedance and the adsorption influence of ethanol and acetone vapor on the charge transfer were examined
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Nanohyperthermia of malignant tumors. I. Lanthanum-strontium manganite magnetic fluid as potential inducer of tumor hyperthermia
Get PDFNanohyperthermia of malignant tumors. I. Lanthanum-strontium manganite magnetic fluid as potential inducer of tumor hyperthermia / S.Solopan, A. Belous, Yelenich A., Kovelskaya A., Chekhun V., Podoltsev A., Kondratenko I., Osinsky S. // Exp. Oncol. - 2011. - № 33(3). - 130-135.To synthesize magnetic particles of lanthanum-strontium manganite, prepare the magnetic fluid (MF), evaluate the generation of heat by particles and determine their common toxiсity. Methods: Nanoparticles based on the solid solutions of lanthanum-strontium manganite (La1-xSrxMnO3) have been synthesized by a sol-gel method. Conventional methods of experimental oncology were used. Results: Nanoparticles of ferromagnetic materials on the basis of solid solutions of lanthanum strontium manganite by sol-gel method were synthesized. It was shown the possibility to regulate the aggregate form of particles that are formed during the synthesis. Magnetic fluid based on the synthesized nanoparticles and water solutions of agarose have been produced. It was shown the possibility to heat this magnetic fluid up to 42–45 °С in externally applied alternating magnetic field (AMF) operated at 100–400 kHz. It was determined that under long-term influence of AMF nanofluid is heated up to temperature which is not over that of magnetic phase transition. It was detected that magnetic powder as well as fluid have not displayed acute toxicity or side effects (intraperitoneal or intratumoral administration) in animals either intact or with transplanted tumors. Conclusions: Possibility of synthesized magnetic fluid to generate heat in externally applied AMF as well as lack of side effects allow to consider its as a potential mean for tumor hyperthermia (HT)
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
JETP Letters V. 66, I .10
No full textJETP Letters -- November 25, 1997
Volume 66, Issue 10, pp. 661-704
Combined effect of nonmagnetic and magnetic scatterers on the critical temperatures of superconductors with different anisotropies of the gap
L. A. Openov
Full Text: PDF (101 kB)
Quasi-one-dimensional transport of nondegenerate electrons in two-dimensional systems with a fluctuation potential
B. A. Aronzon, E. Z. Meilikhov, D. A. Bakaushin, A. S. Vedeneev, and V. V. Ryl'kov
Full Text: PDF (81 kB)
Low-temperature motion of dislocations as a possible mechanism of formation of one-dimensional electronic structures in semiconductor crystals
N. I. Tarbaev, G. A. Shepel'skii, and E. A. Sal'kov
Full Text: PDF (163 kB)
Jahn–Teller effect on Sm3+ ions in fluctuating-valence compounds
T. S. Al'tshuler and M. S. Bresler
Full Text: PDF (113 kB)
New model for systems of mesoscopic Josephson junctions
A. I. Belousov and Yu. E. Lozovik
Full Text: PDF (109 kB)
Phase transition in liquid 3He in an aerogel at zero temperature
V. P. Mineev
Full Text: PDF (95 kB)
Formation of amorphous carbon on melting of microcrystalline graphite by picosecond laser pulses
M. B. Agranat, S. I. Ashitkov, A. V. Kirillin, A. V. Kostanovskii, V. E. Fortov, S. I. Anisimov, and P. S. Kondratenko
Full Text: PDF (2612 kB)
Erratum: Does the Unruh effect exist? [JETP Lett. 65, No. 12, 902–908 (25 June 1997)]
V. A. Belinskii, B. M. Karnakov, V. D. Mur, and N. B. Narozhnyi
Full Text: PDF (27 kB)Archived web conten
Long-term wind-driven X-ray spectral variability of NGC 1365 with Swift
No full textWe present long-term (months–years) X-ray spectral variability of the Seyfert 1.8 galaxy NGC 1365 as observed by Swift, which provides well-sampled observations over a much longer time-scale (six years) and a much larger flux range than is afforded by other observatories. At very low luminosities, the spectrum is very soft, becoming rapidly harder as the luminosity increases and then, above a particular luminosity, softening again. At a given flux level, the scatter in hardness ratio is not very large, meaning that the spectral shape is largely determined by the luminosity. The spectra were therefore summed in luminosity bins and fitted with a variety of models. The best-fitting model consists of two power laws, one unabsorbed and another, more luminous, which is absorbed. In this model, we find a range of intrinsic 0.5–10.0 keV luminosities of approximately 1.1–3.5 erg s?1, and a very large range of absorbing columns, of approximately 1022–1024 cm?2. Interestingly, we find that the absorbing column decreases with increasing luminosity, but that this result is not due to changes in ionization. We suggest that these observations might be interpreted in terms of a wind model in which the launch radius varies as a function of ionizing flux and disc temperature and therefore moves out with increasing accretion rate, i.e. increasing X-ray luminosity. Thus, depending on the inclination angle of the disc relative to the observer, the absorbing column may decrease as the accretion rate goes up. The weaker, unabsorbed, component may be a scattered component from the wind
Novye materialy dlâ bureniâ, dobyči i transportirovki uglevodorodov i povyšeniâ resursa burovyh nasosov
No full textTyt. z nagłówka.Bibliogr. s. 172-173.Dostępny również w formie drukowanej.STRESZCZENIE:W artykule przeprowadzona została analiza przyczyn awarii rur wiertniczych oraz ich połączeń. Zbadano wpływ zawartości węgla na właściwości mechaniczne rur stalowych. Przedstawiono również zalety zastosowania wielowarstwowej stali o wysokiej odporności na korozję do produkcji rur oraz poszczególnych części urządzeń wiertniczych. SŁOWA KLUCZOWE: urządzenia wiertnicze, pompy wiertnicze. ABSTRACT: The causes of failure of casing and its connections are discussed in the paper. The influence of carbon on the mechanical properties of steel pipes was analysed. The advantages of a multilayer steel highly resistant to corrosion were analysed in view of pipes and other operation elements production. KEYWORDS: drilling rigs, drilling pumps
54.5 Tb/s WDM Transmission over Field Deployed Fiber Enabled by Neural Network-Based Digital Pre-Distortion
No full textWe demonstrate a record 54.5 Tb/s WDM transmission at 11.35 bit/s/Hz over 48 km of field-deployed SMF connecting business and academic parks enabled by a novel joint I-Q Neural Network-based transmitter digital pre-distortion technique.Accepted Author ManuscriptTeam Sander Wahl
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
The Nature of Author Relevance in Literary Interpretation
Get PDFOne ongoing debate in literary interpretation focuses on the relevance (or not) of the author to interpreting a literary work‟s meaning. Traditionally the dominant opposing positions in this debate are intentionalism, where the author‟s intentions are relevant to and even determinate of meaning, and (strong) anti-intentionalism, where the author is in no way relevant to interpretation. In this thesis I demonstrate that these two positions do not form a straightforward opposition. I show that this arises from a dialectical mixing of metaphysical claims and methodological claims. For example, if an intentionalist argues that the meaning of a work is metaphysically determined by its author‟s intentions then the anti-intentionalist response may be that accessing the author‟s actual intentions are methodologically impossible for the interpreter. Resulting from this I frame the debate in terms of metaphysical questions of meaning and methodological questions of interpretation. In my discussion of the metaphysics of meaning I show that there is at least a minimal sense in which the author is relevant to the meaning of a work. I argue that there are features of the work that the author, due to his or her historical and geographical context, could not help but have included in it, and in this sense the author limits the meaning of a work. Following this, my discussion of the methodology of interpretation argues that a reasonable regulatory question for interpretive practice is: what could the author possibly mean? Finally I consider my conclusions in relation to the most recent positions in the debate, showing that they are best reflected in Alexander Nehamas‟ “postulated author”
- …
