1,721,277 research outputs found
Menzel´s adaptations of Hrabal´s literary works of art
No full textTato práce se zabývá Menzlovými adaptacemi děl Bohumila Hrabala. Naším záměrem bylo porovnání vybraných literárních předloh a jejich filmových adaptací. Zaměřili jsme se na dvě konkrétní díla a to na Ostře sledované vlaky a Obsluhoval jsem anglického krále a jejich stejnojmenné adaptace od Jiřího Menzela.This bachelor thesis deals with Menzel´s adaptations of Hrabal´s literary works. Our aim was comparison of selected literary works and their subsequent adaptation. We focuse on two concrete works: Closely watched trains and I served the English king and their subsequent adaptation performed by Jiří Menzel.Katedra historických vědDokončená práce s úspěšnou obhajobo
Exploring the Dynamics of Real-World Memristors on the Basis of Circuit Theoretic Model Predictions
No full textThe memristor represents the key circuit element for the development of the constitutive blocks of future non-volatile memory architectures and neuromorphic systems. However, resistance switching memories offer a plethora of further opportunities for the electronics of the future. By virtue of the compatibility between the well-established CMOS technology and the fabrication process of most memristors, the exploitation of the peculiar dynamic behaviour of resistance switching memories, which, in general, differ depending upon their material composition, may allow the development of new circuits, which, processing information in unconventional forms, may extend and/or complement the functionalities of state-of-the-art electronic systems. Further, the attractive capability of real-world non-volatile memristors to store and process information in the same physical nanoscale location open the fascinating opportunity to improve the low throughput of Von Neumann computing machines, due to the limited bandwidth of the bus transferring data between the memory and the central processing unit. Finally, the extreme sensitivity of their electrical behaviour to small changes in their initial condition/input and the intrinsic stochastic variability in their switching dynamics may be harnessed to develop innovative bio-signal sensors as well as new cryptographic circuits and systems. The derivation of accurate mathematical models for the electrical behaviour of real-world memristor nano-devices, and their later circuit- and system-theoretic investigation aimed at drawing a comprehensive picture of their peculiar nonlinear dynamic behaviour under the set of inputs and initial conditions expected of the application of interest are fundamental steps towards their conscious future use in integrated circuit design. With this in mind, the present paper adopts a powerful theoretic tool known as Dynamic Route Map to analyse some of the most reliable physics-based models of real-world resistance switching memories to reveal how a particular dynamic phenomenon, known as fading memory, and recently discovered in a tantalum oxide non-volatile memristor device fabricated at Hewlett Packard Labs, is ubiquitous at nanoscale. The physical mechanisms behind the emergence of history-erase effects in non-volatile memristor nano-devices is explained thoroughly for both the DC and the AC periodic excitation scenarios
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Requirements and Challenges for Modelling Redox-based Memristive Devices
No full textDeveloping highly accurate and predictive models
of redox-based memristive devices is highly important to enable
future memory and logic design. As the switching mechanism is
not known in all details yet, accurate device modeling is quite
challenging. Here, we introduce six evaluation criteria for
modeling filamentary switching devices based on the valence
change mechanism, which is a subclass of redox-based
memristive devices. The criteria include the plausibility of the
simulated I-V and I-t characteristics, the nonlinearity of the
switching kinetics, the feasibility of predicting complementary
resistive switching correctly, the possibility of programming
different resistance states, the state-dependence of the resistive
switching, and the occurrence of a fading memory behavior. Four
different models that have been proposed in literature are
analyzed with respect to these criteria. These models are
Kvatinsky's VTEAM model, the Stanford RRAM model,
Strachan's TaOx memristor model and a nonlinear physicsbased
model proposed by our group
System Theory Enables a Deep Exploration of ReRAM Switching Phenomena
No full textNo major advancement in integrated circuit design
with highly-nonlinear resistance switching devices may be
expected unless a robust theoretical framework, allowing to
draw a comprehensive picture of the operating principles of
these devices, is first developed. Recurring to nonlinear system
theory, and, where necessary, developing novel methodologies
for analysing the complex dynamics of resistive random access
memories, is thus a fundamental preliminary step toward the
subsequent development of a conscious and systematic approach
to memristive circuit design. In this paper the Dynamic Route
Map, a powerful system-theoretic analysis method for first-order
nonlinear systems, is employed to uncover and explain the hidden
mechanisms behind the emergence of memory loss effects in nonvolatile
resistive random access memories fabricated at the Peter
Grunberg Institut 7 (PGI-7) Forschungszentrum Julich (FZJ)
GmbH in Julich
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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