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Technical Paper

MOS Reliability Prediction Model

1970-02-01
700646
The determination of component part failure rates is required for most military contracts normally during the early portion of the program definition phase. For new technology devices whose failure rates have not been established nor available in recognized military documents, it has been impossible to accurately predict the reliability of the system using these new devices. A technique developed by authors enables a prediction to be made for new state-of-the-art devices using a mathematical transfer model. This paper describes a mathematical transfer model using established failure rate data from bipolar integrated circuits (IC). These bipolar devices contain similar characteristics, basic materials, processes, testing, inspection, environmental, physics of failure, and application, to the new device. Failure rates for the new device, large scale array (LSA ) metal-oxide-semiconductor (MOS) are obtained through use of this model.
Technical Paper

MOST Based Solutions for Implementing Digital Video in Vehicle Multimedia Applications

2002-03-04
2002-01-0268
Recent trends in automotive electronics point towards a growing demand for sophisticated audio and video systems in new vehicles. These systems are being driven by several factors including a migration of consumer electronic devices to vehicles and a need to control these devices in the vehicle's driver and passenger environment. The incorporation of digital network buses, such as MOST (Media Oriented Systems Transport), build the digital data infrastructure in the vehicle for these advanced audio/video systems. However, additional considerations must be given to the constraints around the deployment of the audio and video devices into the vehicle and adapting them to the vehicle's digital infrastructure bus. This paper will explore these constraints and discuss some of the approaches that are being taken to deploy digital video systems on the MOST optical network bus in emerging vehicle multimedia applications.
Technical Paper

MOSTVS: A New Class of Transient Voltage Suppressors to Reduce Voltage Rating and Cost of Automotive Power Electronics

2003-03-03
2003-01-0100
Power electronics is playing an increasingly important role in vehicle systems. The voltage rating of automotive power electronics is predominantly determined by the transient immunity requirement, which considerably exceeds the maximum operating voltages of 12V and 24V automotive power systems, and imposes a large cost penalty. In contrast, the emerging 42V systems require a much improved bus voltage regulation to maintain system affordability. In this paper, we introduce a new class of transient voltage suppressors termed as MOSTVS, which provides a more accurately controlled clamping voltage than the conventional Zener diodes and MOVs over a wide range of current and temperature. The new MOSTVS concept, based on power MOSFET and polysilicon thin-film technologies, makes it possible to relax the breakdown voltage requirement of automotive power electronics and result in significant cost reduction.
Technical Paper

MOTION ANALYSIS by Means of HIGH-SPEED PHOTOGRAPHY

1944-01-01
440148
IN analyzing the operation of aircraft-engine parts, the high-speed motion picture camera has many advantages over the older methods, which involved the use of vibration indicators, stroboscopes, and strain gages. High-speed motion picture studies have the advantages of forming a permanent record and of accurately evaluating transient conditions. Many subjects have been studied by means of high-speed motion pictures, some of which are here shown and discussed by Mr. Jackes.
Technical Paper

MOTOR RAIL-CARS 1

1924-01-01
240048
Referring to the McKeen gasoline-driven car and one of the gasoline-electric type that were introduced in the early part of the present century and were the pioneers among self-propelled cars for railroad use, the author ascribes their limited success to their excessive weight and to engine and transmission troubles. Both these types, he thinks, might have been developed successfully had the gasoline engine been in its present state of efficiency and reliability. The early attempts having been more or less unsuccessful, the construction of all types was discontinued during the war. More recently the progress in the design and construction of highway motor-trucks has caused them to be adapted to railroad service by applying flanged tires to the rear wheels, pivotal pony-trucks forward and a motorbus body for the carrying of passengers and a limited amount of baggage.
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