Parallel Computer Technology - A Solution for Automobiles?

2009 ◽  
Author(s):  
Stefan Aust ◽  
Harald Richter
Keyword(s):  
Computer Technology ◽  
Parallel Computer

Design of objective lens for 200-kV high-resolution electron microscopes

1983 ◽  
Vol 41 ◽  
pp. 314-315
Author(s):  
K. Tsuno ◽  
T. Honda ◽  
Y. Harada ◽  
M. Naruse
Keyword(s):  
Optical Properties ◽  
Computer Technology ◽  
Axial Magnetic Field ◽  
Chromatic Aberration ◽  
Objective Lens ◽  
Resolution Electron ◽  
Correction Of Astigmatism ◽  
Three Stages ◽  
Electron Microscopes ◽  
Stage 1

Developement of computer technology provides much improvements on electron microscopy, such as simulation of images, reconstruction of images and automatic controll of microscopes (auto-focussing and auto-correction of astigmatism) and design of electron microscope lenses by using a finite element method (FEM). In this investigation, procedures for simulating the optical properties of objective lenses of HREM and the characteristics of the new lens for HREM at 200 kV are described.The process for designing the objective lens is divided into three stages. Stage 1 is the process for estimating the optical properties of the lens. Firstly, calculation by FEM is made for simulating the axial magnetic field distributions Bzc of the lens. Secondly, electron ray trajectory is numerically calculated by using Bzc. And lastly, using Bzc and ray trajectory, spherical and chromatic aberration coefficients Cs and Cc are numerically calculated. Above calculations are repeated by changing the shape of lens until! to find an optimum aberration coefficients.

Detection, Averaging, and 3D Reconstruction of Biological Specimens on Hypercubes (Transputer-based) Computers

1990 ◽  
Vol 48 (1) ◽  
pp. 454-455
Author(s):  
Jose-Maria Carazo ◽  
I. Benavides ◽  
S. Marco ◽  
J.L. Carrascosa ◽  
E.L. Zapata
Keyword(s):  
3D Reconstruction ◽  
3D Structure ◽  
Three Dimensional ◽  
Software Tools ◽  
Mapping Method ◽  
Computer Architectures ◽  
Parallel Computer ◽  
Reconstruction Process ◽  
Computing Power ◽  
Order Of Magnitude

Obtaining the three-dimensional (3D) structure of negatively stained biological specimens at a resolution of, typically, 2 - 4 nm is becoming a relatively common practice in an increasing number of laboratories. A combination of new conceptual approaches, new software tools, and faster computers have made this situation possible. However, all these 3D reconstruction processes are quite computer intensive, and the middle term future is full of suggestions entailing an even greater need of computing power. Up to now all published 3D reconstructions in this field have been performed on conventional (sequential) computers, but it is a fact that new parallel computer architectures represent the potential of order-of-magnitude increases in computing power and should, therefore, be considered for their possible application in the most computing intensive tasks.We have studied both shared-memory-based computer architectures, like the BBN Butterfly, and local-memory-based architectures, mainly hypercubes implemented on transputers, where we have used the algorithmic mapping method proposed by Zapata el at. In this work we have developed the basic software tools needed to obtain a 3D reconstruction from non-crystalline specimens (“single particles”) using the so-called Random Conical Tilt Series Method. We start from a pair of images presenting the same field, first tilted (by ≃55°) and then untilted. It is then assumed that we can supply the system with the image of the particle we are looking for (ideally, a 2D average from a previous study) and with a matrix describing the geometrical relationships between the tilted and untilted fields (this step is now accomplished by interactively marking a few pairs of corresponding features in the two fields). From here on the 3D reconstruction process may be run automatically.

Computer Usage by Speech-Language Pathologists in Public Schools

1988 ◽  
Vol 19 (4) ◽  
pp. 423-427 ◽  
Author(s):  
Gail Ruppert Houle
Keyword(s):  
Public Schools ◽  
Public School ◽  
Computer Technology ◽  
Computer Usage ◽  
Attitudes Toward Computers ◽  
Speech Language Pathologists ◽  
Frequent Users ◽  
Service Training

This study investigated factors that influence public school speech-language pathologists' acceptance and/or resistance to computer technology. Significant differences were found between speech-language pathologists who are frequent users of computers in the workplace and those who seldom or never use them. These differences were attributed to differences in attitudes toward computers, available funding for computers, in-service training, and physical facilities.

A Multimedia Situational Test With a Constructed-Response Format

2011 ◽  
Vol 10 (2) ◽  
pp. 78-88 ◽  
Author(s):  
Janneke K. Oostrom ◽  
Marise Ph. Born ◽  
Alec W. Serlie ◽  
Henk T. van der Molen
Keyword(s):  
Cognitive Ability ◽  
Computer Technology ◽  
Psychology Students ◽  
Learning Activities ◽  
Ability Test ◽  
Constructed Response ◽  
Job Experience ◽  
Relationship Of ◽  
The Relationship ◽  
Situational Test

Advances in computer technology have created opportunities for the development of a multimedia situational test in which responses are filmed with a webcam. This paper examined the relationship of a so-called webcam test with personality, cognitive ability, job experience, and academic performance. Data were collected among 153 psychology students. In line with our expectations, scores on the webcam test, intended to measure interpersonally oriented leadership, were related to extraversion, conscientiousness, emotional stability, and job experience. Furthermore, the webcam tests significantly predicted students’ learning activities during group meetings over and above a cognitive ability test and a personality questionnaire. Overall, this study demonstrates that webcam tests can be a valid complement to traditional predictors in selection contexts.

Computer Technology Use and Attitudes Among Older Adults

2013 ◽  
Author(s):  
Virginia Wadley ◽  
Rachel Benz ◽  
Martha Frankel ◽  
David Ball ◽  
Daniel Roenker
Keyword(s):  
Older Adults ◽  
Computer Technology ◽  
Technology Use

Applications of computer technology to problems of human judgment and interpersonal conflict

1971 ◽  
Author(s):  
David A. Summers ◽  
Thomas R. Stewart ◽  
Peter J. R. Boyle ◽  
Monroe J. Miller ◽  
Kenneth R. Hammond
Keyword(s):  
Computer Technology ◽  
Interpersonal Conflict ◽  
Human Judgment

Domain Identification Measure--Computer Technology Version

2005 ◽  
Author(s):  
Jessie L. Smith ◽  
Carolyn L. Morgan ◽  
Paul H. White
Keyword(s):  
Computer Technology ◽  
Domain Identification

Introduction to CD-ROM Production in Health Education

2003 ◽  
Vol 1 (1) ◽  
pp. 60-69
Author(s):  
Mark Tomita
Keyword(s):  
Health Education ◽  
Computer Technology ◽  
Compact Disc ◽  
Health Educators ◽  
Cd Rom

Compact disc (CD-ROM) computer technology have been around for at least a decade, but health educators have been slow to use this technology for health education purposes. This paper describes the process of CD-ROM production in health education.

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