Design and Realization of Testing and Evaluation System for Recycling Equipment of Type of Electronic Device

Author(s):  
Xuedong Xue ◽  
Dongyan Liu ◽  
RongLi Liu ◽  
Bo Yang ◽  
HanBing Wang
1990 ◽  
Vol 37 (2) ◽  
pp. 331-335
Author(s):  
M.S. Gorbics ◽  
H.B. Crawley ◽  
R. McKay ◽  
W.T. Meyer ◽  
E.I. Rosenberg ◽  
...  

2020 ◽  
pp. 85-89

In the new digital environment and due to the need for competitive professional specialists, it has become increasingly necessary to create a modern educational model that is consistent with the digital development period. The need to combine training and work requires students to be evaluated in a virtual environment which involves the development of online testing and evaluation systems, as well as authorship verification, authentication of test subjects and support of the exam process with real student results. The EU-funded Horizon 2020 (TeSLA) project has a similar purpose: to develop and implement an online testing and evaluation system by identifying subjects with a group of combined parameters in terms of avoiding time limits for the authentication and verification of authorship.


Author(s):  
Mansour Rahimi ◽  
Don E. Malzahn

Appropriate design and modification of industrial tasks must consider the matching of human physical abilities with task requirements. This paper describes the Available Motions Inventory (AMI) as a testing and evaluation system for measuring human physical ability based on components of manual industrial tasks. Using a microcomputer, one can transform the AMI scores (71 for each hand) into raw scores, ability scores, motion class scores, and performance prediction indices. Examples of task modification strategies using the design-oriented scoring of AMI are illustrated. Also, the reliability of the AMI testing system was evaluated using a multivariate canonical correlation analysis. A high test-retest reliability of 0.85 was obtained.


Author(s):  
William Krakow

An electronic device has been constructed which manipulates the primary beam in the conventional transmission microscope to illuminate a specimen under a variety of virtual condenser aperture conditions. The device uses the existing tilt coils of the microscope, and modulates the D.C. signals to both x and y tilt directions simultaneously with various waveforms to produce Lissajous figures in the back-focal plane of the objective lens. Electron diffraction patterns can be recorded which reflect the manner in which the direct beam is tilted during exposure of a micrograph. The device has been utilized mainly for the hollow cone imaging mode where the device provides a microscope transfer function without zeros in all spatial directions and has produced high resolution images which are also free from the effect of chromatic aberration. A standard second condenser aperture is employed and the width of the cone annulus is readily controlled by defocusing the second condenser lens.


Author(s):  
Russell L. Steere ◽  
Eric F. Erbe ◽  
J. Michael Moseley

We have designed and built an electronic device which compares the resistance of a defined area of vacuum evaporated material with a variable resistor. When the two resistances are matched, the device automatically disconnects the primary side of the substrate transformer and stops further evaporation.This approach to controlled evaporation in conjunction with the modified guns and evaporation source permits reliably reproducible multiple Pt shadow films from a single Pt wrapped carbon point source. The reproducibility from consecutive C point sources is also reliable. Furthermore, the device we have developed permits us to select a predetermined resistance so that low contrast high-resolution shadows, heavy high contrast shadows, or any grade in between can be selected at will. The reproducibility and quality of results are demonstrated in Figures 1-4 which represent evaporations at various settings of the variable resistor.


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