Large Scale Message Center Vacuum Fluorescent Display for Automotive Applications

1991 ◽  
Author(s):  
Todashi Iwasa ◽  
Yasuyuki Kikuchi ◽  
Hiroshi Yamaguchi ◽  
Tukasa Minato ◽  
Isao Ohtsuka
Keyword(s):  
Large Scale ◽  
Automotive Applications ◽  
Vacuum Fluorescent Display

System-Level Thermal Management and Reliability of Automotive Electronics: Goals and Opportunities Using Phase-Change Materials

2020 ◽  
Vol 142 (4) ◽  
Author(s):  
Bakhtiyar Mohammad Nafis ◽  
Ange-Christian Iradukunda ◽  
David Huitink
Keyword(s):  
Phase Change ◽  
Thermal Management ◽  
Large Scale ◽  
Phase Change Materials ◽  
Temperature Stability ◽  
System Level ◽  
Heat Of Fusion ◽  
Automotive Electronics ◽  
Automotive Applications ◽  
Power Module

Abstract Electronic packaging for automotive applications are at particular risk of thermomechanical failure due to the naturally harsh conditions it is exposed to. With the rise of electric and hybrid electric vehicles (EVs and HEVs), combined with a desire to miniaturize, the challenge of removing enough heat from electronic devices in automotive vehicles is evolving. This paper closely examines the new challenges in thermal management in various driving environments and aims to classify each existing cooling method in terms of performance. Particular focus is placed upon emerging solutions regarded to hold great potential, such as phase-change materials (PCMs). PCMs have been regarded for some time as a means of transferring heat quickly away from the region with the electronic components and are widely regarded as a possible means of carrying out cooling in large scale from small areas, because of their high latent heat of fusion, high specific heat, temperature stability, and small volume change during phase change, etc. They have already been utilized as a method of passive cooling in electronics in various ways, but their adoption in automotive power electronics, such as in traction inverters, has yet to be fulfilled. A brief discussion is made on some of the potential areas of application and challenges relating to more widespread adoption of PCMs, with reference to a case study using computational model of a commercially available power module used in automotive applications.

High Luminance Graphic Vacuum Fluorescent Display for Automotive Applications

1994 ◽  
Author(s):  
Tukasa Minato ◽  
Masahiro Torikai ◽  
Kazuyuki Yano ◽  
Robert Davis
Keyword(s):  
Automotive Applications ◽  
High Luminance ◽  
Vacuum Fluorescent Display

Macro-Scale Analysis of Large Scale PEM Fuel Cell Flow-Fields for Automotive Applications

2017 ◽  
Vol 164 (11) ◽  
pp. E3073-E3080 ◽  
Author(s):  
S. Shimpalee ◽  
S. Hirano ◽  
M. DeBolt ◽  
V. Lilavivat ◽  
J. W. Weidner ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Large Scale ◽  
Pem Fuel Cell ◽  
Flow Fields ◽  
Scale Analysis ◽  
Automotive Applications ◽  
Macro Scale

Universal Grid Vacuum Fluorescent Display for Automotive Applications

1994 ◽  
Author(s):  
Soichi Shinya ◽  
Yoshimichi Matsuda ◽  
Masanori Saito ◽  
Itaru Hatori ◽  
Martin A. Saunders
Keyword(s):  
Automotive Applications ◽  
Universal Grid ◽  
Vacuum Fluorescent Display

Chip-in-Glass Vacuum Fluorescent Display for Automotive Applications

1987 ◽  
Author(s):  
Soichi Shinya ◽  
Tatsuo Yamaura ◽  
Teruo Watanabe ◽  
Isao Ootsuka ◽  
Thomas Pykosz
Keyword(s):  
Automotive Applications ◽  
Vacuum Fluorescent Display

Some comments about observations and image processing of comet 29P/Schwassmann-Wachmann 1

1999 ◽  
Vol 173 ◽  
pp. 243-248
Author(s):  
D. Kubáček ◽  
A. Galád ◽  
A. Pravda
Keyword(s):  
Image Processing ◽  
Large Scale ◽  
Harvard College ◽  
Oak Ridge ◽  
Large Scale Structures ◽  
Short Period Comet ◽  
Short Period ◽  
Scale Structures ◽  
Harvard College Observatory ◽  
Period Comet

AbstractUnusual short-period comet 29P/Schwassmann-Wachmann 1 inspired many observers to explain its unpredictable outbursts. In this paper large scale structures and features from the inner part of the coma in time periods around outbursts are studied. CCD images were taken at Whipple Observatory, Mt. Hopkins, in 1989 and at Astronomical Observatory, Modra, from 1995 to 1998. Photographic plates of the comet were taken at Harvard College Observatory, Oak Ridge, from 1974 to 1982. The latter were digitized at first to apply the same techniques of image processing for optimizing the visibility of features in the coma during outbursts. Outbursts and coma structures show various shapes.

Evolution of Large-Scale Coronal Structures

1994 ◽  
Vol 144 ◽  
pp. 29-33
Author(s):  
P. Ambrož
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Large Scale ◽  
Coronal Magnetic Field ◽  
Source Surface ◽  
Solar Cycles ◽  
Characteristic Relationship ◽  
The Magnetic Field ◽  
Coronal Structures

AbstractThe large-scale coronal structures observed during the sporadically visible solar eclipses were compared with the numerically extrapolated field-line structures of coronal magnetic field. A characteristic relationship between the observed structures of coronal plasma and the magnetic field line configurations was determined. The long-term evolution of large scale coronal structures inferred from photospheric magnetic observations in the course of 11- and 22-year solar cycles is described.Some known parameters, such as the source surface radius, or coronal rotation rate are discussed and actually interpreted. A relation between the large-scale photospheric magnetic field evolution and the coronal structure rearrangement is demonstrated.

Large-scale Motion of Solar Filaments

2000 ◽  
Vol 179 ◽  
pp. 205-208
Author(s):  
Pavel Ambrož ◽  
Alfred Schroll
Keyword(s):  
Magnetic Flux ◽  
Proper Motion ◽  
Time Scale ◽  
Large Scale ◽  
Accuracy Of Measurements ◽  
Solar Filaments ◽  
General Movement ◽  
Scale Motion ◽  
Velocity Scatter

AbstractPrecise measurements of heliographic position of solar filaments were used for determination of the proper motion of solar filaments on the time-scale of days. The filaments have a tendency to make a shaking or waving of the external structure and to make a general movement of whole filament body, coinciding with the transport of the magnetic flux in the photosphere. The velocity scatter of individual measured points is about one order higher than the accuracy of measurements.

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