Computer Based Model for an Off-Grid Photovoltaic System with no DC – DC Adapter

Author(s):  
Alexandra POPESCU ◽  
Flaviu Mihai FRIGURA-ILIASA ◽  
Mirela IORGA ◽  
Mihaela FRIGURA-ILIASA
Author(s):  
M. Marko ◽  
A. Leith ◽  
D. Parsons

The use of serial sections and computer-based 3-D reconstruction techniques affords an opportunity not only to visualize the shape and distribution of the structures being studied, but also to determine their volumes and surface areas. Up until now, this has been done using serial ultrathin sections.The serial-section approach differs from the stereo logical methods of Weibel in that it is based on the Information from a set of single, complete cells (or organelles) rather than on a random 2-dimensional sampling of a population of cells. Because of this, it can more easily provide absolute values of volume and surface area, especially for highly-complex structures. It also allows study of individual variation among the cells, and study of structures which occur only infrequently.We have developed a system for 3-D reconstruction of objects from stereo-pair electron micrographs of thick specimens.


Author(s):  
Nestor J. Zaluzec

The Information SuperHighway, Email, The Internet, FTP, BBS, Modems, : all buzz words which are becoming more and more routine in our daily life. Confusing terminology? Hopefully it won't be in a few minutes, all you need is to have a handle on a few basic concepts and terms and you will be on-line with the rest of the "telecommunication experts". These terms all refer to some type or aspect of tools associated with a range of computer-based communication software and hardware. They are in fact far less complex than the instruments we use on a day to day basis as microscopist's and microanalyst's. The key is for each of us to know what each is and how to make use of the wealth of information which they can make available to us for the asking. Basically all of these items relate to mechanisms and protocols by which we as scientists can easily exchange information rapidly and efficiently to colleagues in the office down the hall, or half-way around the world using computers and various communications media. The purpose of this tutorial/paper is to outline and demonstrate the basic ideas of some of the major information systems available to all of us today. For the sake of simplicity we will break this presentation down into two distinct (but as we shall see later connected) areas: telecommunications over conventional phone lines, and telecommunications by computer networks. Live tutorial/demonstrations of both procedures will be presented in the Computer Workshop/Software Exchange during the course of the meeting.


1973 ◽  
Vol 37 (8) ◽  
pp. 27-31
Author(s):  
HA Brody ◽  
LF Lucaccini ◽  
M Kamp ◽  
R Rozen

2020 ◽  
Vol 63 (4) ◽  
pp. 1270-1281
Author(s):  
Leah Fostick ◽  
Riki Taitelbaum-Swead ◽  
Shulamith Kreitler ◽  
Shelly Zokraut ◽  
Miriam Billig

Purpose Difficulty in understanding spoken speech is a common complaint among aging adults, even when hearing impairment is absent. Correlational studies point to a relationship between age, auditory temporal processing (ATP), and speech perception but cannot demonstrate causality unlike training studies. In the current study, we test (a) the causal relationship between a spatial–temporal ATP task (temporal order judgment [TOJ]) and speech perception among aging adults using a training design and (b) whether improvement in aging adult speech perception is accompanied by improved self-efficacy. Method Eighty-two participants aged 60–83 years were randomly assigned to a group receiving (a) ATP training (TOJ) over 14 days, (b) non-ATP training (intensity discrimination) over 14 days, or (c) no training. Results The data showed that TOJ training elicited improvement in all speech perception tests, which was accompanied by increased self-efficacy. Neither improvement in speech perception nor self-efficacy was evident following non-ATP training or no training. Conclusions There was no generalization of the improvement resulting from TOJ training to intensity discrimination or generalization of improvement resulting from intensity discrimination training to speech perception. These findings imply that the effect of TOJ training on speech perception is specific and such improvement is not simply the product of generally improved auditory perception. It provides support for the idea that temporal properties of speech are indeed crucial for speech perception. Clinically, the findings suggest that aging adults can be trained to improve their speech perception, specifically through computer-based auditory training, and this may improve perceived self-efficacy.


2020 ◽  
Vol 63 (4) ◽  
pp. 1071-1082
Author(s):  
Theresa Schölderle ◽  
Elisabet Haas ◽  
Wolfram Ziegler

Purpose The aim of this study was to collect auditory-perceptual data on established symptom categories of dysarthria from typically developing children between 3 and 9 years of age, for the purpose of creating age norms for dysarthria assessment. Method One hundred forty-four typically developing children (3;0–9;11 [years;months], 72 girls and 72 boys) participated. We used a computer-based game specifically designed for this study to elicit sentence repetitions and spontaneous speech samples. Speech recordings were analyzed using the auditory-perceptual criteria of the Bogenhausen Dysarthria Scales, a standardized German assessment tool for dysarthria in adults. The Bogenhausen Dysarthria Scales (scales and features) cover clinically relevant dimensions of speech and allow for an evaluation of well-established symptom categories of dysarthria. Results The typically developing children exhibited a number of speech characteristics overlapping with established symptom categories of dysarthria (e.g., breathy voice, frequent inspirations, reduced articulatory precision, decreased articulation rate). Substantial progress was observed between 3 and 9 years of age, but with different developmental trajectories across different dimensions. In several areas (e.g., respiration, voice quality), 9-year-olds still presented with salient developmental speech characteristics, while in other dimensions (e.g., prosodic modulation), features typically associated with dysarthria occurred only exceptionally, even in the 3-year-olds. Conclusions The acquisition of speech motor functions is a prolonged process not yet completed with 9 years. Various developmental influences (e.g., anatomic–physiological changes) shape children's speech specifically. Our findings are a first step toward establishing auditory-perceptual norms for dysarthria in children of kindergarten and elementary school age. Supplemental Material https://doi.org/10.23641/asha.12133380


1981 ◽  
Vol 9 (1) ◽  
pp. 100-107
Author(s):  
Susan Phillips ◽  
Peter Cairo ◽  
Roger Myers

1978 ◽  
Vol 6 (1) ◽  
pp. 54-58
Author(s):  
G.P. Kearsley ◽  
E.W. Romaniuk ◽  
J. Rowand

2003 ◽  
Vol 15 (1) ◽  
pp. 13-23
Author(s):  
Berit Baeßler ◽  
Stephanie Lücke ◽  
Bernhard Koring ◽  
Susanne Kinnebrock ◽  
Patrick Rössler

Zusammenfassung. Der vorliegende Beitrag entwickelt auf der Basis von pädagogischen Überlegungen und lernpsychologischen Forschungsergebnissen zur computerunterstützten Wissensvermittlung eine Konzeptualisierung von E-Learning-Systemen und deren von konsequentem Qualitätsmanagement begleitete Umsetzung. Die vorgestellte theoriegeleitete Vorgehensweise wird anhand der Entwicklung und Realisierung des internetgestützten Lernsystems “CLIC Computer-based Learning: Introduction to Communications“ veranschaulicht, das an der Universität Erfurt erarbeitet wird. Der Aufsatz befasst sich sowohl mit der Koordination auf der Ebene der Produktion (Didaktik, Inhalt, Technik) als auch auf der Ebene der Rezeption (Lern- und Kommunikationsformen, Lernorganisation). Die explorativ angelegte Evaluation des ersten Einsatzes von CLIC belegt ein weitgehend gelungenes Konzept und Qualitätsmanagement. Vorgestellt werden ausgewählte Evaluationsergebnisse zur Koordination und Organisation der Wissensvermittlung sowie des sozialen Kontaktes zwischen Studierenden und Dozierenden. Anhand von drei in der Evaluation empirisch ermittelten E-Learning-Typen werden Probleme und Potenziale beim E-Learning aufgezeigt und Schlussfolgerungen für die koordinierende Gestaltung von E-Learning-Systemen gezogen.


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