Equilibrium Shrinkage-Force Measurement — A Method Describing the State of Order of Pet-Fibres

1980 ◽  
pp. 345-349 ◽  
Author(s):  
Hans-Joachim Berndt ◽  
Gerhard Heidemann
Keyword(s):  
Force Measurement ◽  
The State ◽  
Shrinkage Force

scholarly journals ANALYSIS OF THE ERROR COMPONENTS OF LEVER TYPE FORCE-GENERATING MACHINES

2021 ◽  
pp. 31-37
Author(s):  
Olexander Tsiporenko
Keyword(s):  
Mathematical Model ◽  
Power Plants ◽  
Force Measurement ◽  
Primary Standard ◽  
The State ◽  
National Standards ◽  
National Standard ◽  
Measuring Instruments ◽  
Unit Size ◽  
Calibration Laboratories

The national standards are the basis of the technical base of the state metrological system. The developing of a na-tional primary standard of force unit solves such tasks as ensuring the uniformity of force measurements, transmitting the size of a unit of force with the required accuracy, metrological support of a large fleet of working standards and measuring instruments used in Ukraine. One of the main stages in the creation of the national standard is the development of a mathematical model of the process of reproducing the unit size of a physical quantity, namely N - Newton. The purpose of this study is to analyze the components of the error of force-generating installations of the multi-lever type, which are part of the national standard. Force generating installations used by calibration laboratories are usually traced to national standards through verification using precision force transducers. Calibration of force measuring instruments will typically be performed on these installations according to a documented procedure, such as ISO 376, and the components of error and uncertainty of calibration results will depend on the calibration and measurement capabilities of the unit size reproduction. Similarly, the uncertainty of the calibration of industrial force measuring in-struments will depend in part on the uncertainty contributing by the force measuring instrument, and the uncertainty of any subsequent force measurement will depend in part on the uncertainty associated with the reproduction of a unit of force, including national standard. It can be seen that the uncertainty of the final strength measurement depends on all previous stages of the measurement, and this work aims to make recommendations on how these contributions can be estimated. The purpose of this study is to analyze the components of the error of power plants of the multi-lever type, which are part of the state standard. The paper analyzes the method of reproduction, storage and transmission of the unit size, lever reinforcement installations, which can be used as reference metrological institutes and calibration laboratories. The basic principles of operation of the above reference installations are considered and the mathematical model of reproduction of the size of unit of force is created.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

Pragmatic versus Morphological/Syntactic Criteria for Language Referrals

1980 ◽  
Vol 11 (2) ◽  
pp. 85-94 ◽  
Author(s):  
Jack Damico ◽  
John W. Oller
Keyword(s):  
Grade Level ◽  
The State ◽  
Verb Agreement ◽  
Remedial Programs ◽  
Service Training ◽  
Traditional Approaches ◽  
Communicative Effectiveness

Two methods of identifying language disordered children are examined. Traditional approaches require attention to relatively superficial morphological and surface syntactic criteria, such as, noun-verb agreement, tense marking, pluralization. More recently, however, language testers and others have turned to pragmatic criteria focussing on deeper aspects of meaning and communicative effectiveness, such as, general fluency, topic maintenance, specificity of referring terms. In this study, 54 regular K-5 teachers in two Albuquerque schools serving 1212 children were assigned on a roughly matched basis to one of two groups. Group S received in-service training using traditional surface criteria for referrals, while Group P received similar in-service training with pragmatic criteria. All referrals from both groups were reevaluated by a panel of judges following the state determined procedures for assignment to remedial programs. Teachers who were taught to use pragmatic criteria in identifying language disordered children identified significantly more children and were more often correct in their identification than teachers taught to use syntactic criteria. Both groups identified significantly fewer children as the grade level increased.

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