1,720,958 research outputs found
Vertically Integrated In-Sensor Processing System Based on Three-Dimensional Reservoir for Artificial Tactile System
No full textNext-generation artificial tactile systems demand seamless integration with neuromorphic architectures to support on-edge computation and high-fidelity sensory signal processing. Despite significant advancements, current research remains predominantly focused on optimizing individual sensor elements, and systems utilizing single neuromorphic components encounter inherent limitations in enhancing overall functionality. Here, we present a vertically integrated in-sensor processing platform, which combines a three-dimensional antiferroelectric field-effect transistor (AFEFET) device with an aluminum nitride (AlN) piezoelectric sensor. This innovative architecture leverages a Zr-rich, leaky antiferroelectric HZO film-a novel material for physical reservoir computing (PRC) devices capable of responding to external stimuli within the microsecond-to-millisecond range. We further demonstrate the 3D AFEFET's adaptability by tuning its discharge current via structural modifications, enabling sophisticated multilayered processing. As an integrated in-sensor processing unit, the 3D AFEFET and AlN sensor array surpass a comparable 2D configuration in both pattern recognition and information density. Our findings showcase a pioneering prototype for future artificial tactile systems, demonstrating the transformative potential of 3D AFEFET PRC devices for advanced neuromorphic applications.
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
Experimental Analysis and Mathematical Modeling of Program Efficiency in Gate-Side Injection Type FeFETs Depending on the Gate Interlayer
No full textWe experimentally analyze the incremental step pulse programming (ISPP) characteristics of gate-side injection type MIFIS FeFETs, which feature a metal - gate interlayer (G.IL) - ferroelectrics - channel interlayer (Ch.IL) - Si stack, with a focus on the role of the G.IL. We also propose a mathematical model considering ferroelectric (FE) switching behavior. MIFIS FeFETs have recently garnered attention due to their ability to achieve lower program (PGM) voltages and wider memory windows (MWs) compared to typical channel-side injection type charge trap flash (CTF) devices, thanks to the injection of charges (Q(it)') from the gate and polarization switching dynamics. However, guidelines on the influence of the G.IL on ISPP characteristics and endurance, critical for NAND cell, are lacking. Here, we experimentally investigate the impact of the G.IL on the ISPP slope of MIFIS FeFETs and, through mathematical modeling, propose a G.IL design to optimize MIFIS FeFET performance. Furthermore, we analyze the degradation of endurance characteristics depending on the type of G.IL, suggesting that the excessive Q(it) injected from the Ch.IL, together with polarization pinning, contributes to overall endurance degradation. Lastly, we demonstrate that by utilizing a low-kappa SiO2 G.IL (6 nm), a MW of 6.5 V and an ISPP slope greater than 3 can be achieved. Our MIFIS FeFET also exhibits disturbance immunity even at voltages exceeding 14 V, which is critical in preventing V-th shifts during various disturbances. Our research and model can provide valuable guidelines for the study of gate-injection type FeFET, which are actively being explored as next-generation NAND Flash memory technologies.
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
