An intelligent measuring instrument for Franck Hertz experiment is developed by using AT90S 8535 microcontroller,which is able to measure weak current of 10 -9 A to 10 -12 A,provide a programmable linear regulated power supply from 0 to 50 V,fuzzily control temperature,display Chinese English characters and curves by graphic LCD,also print curves and data.
This preparation method of alignment layers can be considered a potentially useful technique in the LC display (LCD) industry in the future.
It was established that long-term work with an LCD monitor interferes with the perception of high spatial frequencies, while the use of the LS-KOM spectacles increases the SCS and allows its normal level to be maintained during 4 h of work.
The packing density of (DNA-polycation) complexes differs among LCD particles formed at different ionic strengths.
It was shown that LCD was hexagonal at 0.15 M ≤ CNaCl >amp;lt; 0.4 M and cholesteric at 0.4 M ≤ CNaCl >amp;lt; 0.55 M.
Cholesteric LCD displayed abnormal optical activity in the circular dichroism spectrum.
The active oxygen gas arising from a plasma reactor is used to realize progressive chemical modifications onto silane coatings that could be particularly interesting as alignment layers for liquid crystal display applications.
In these experiments, vision was also manipulated in certain trials with liquid crystal display glasses that occluded vision for the duration of the head turn.
The aim of this study was to evaluate feasibility of reporting brain CT examinations on liquid crystal display (LCD) flat-screen monitors vs state-of-the-art cathode-ray-tube (CRT) monitors.
The aim of the present study was to propose suitable display functions for CT image representation on liquid crystal display (LCD) monitors by analyzing the characteristics of the monitor's typical display functions using psychophysical analysis.
The purpose of the study was to compare the detection performance of a cathode ray tube (CRT) monitor versus a liquid crystal display (LCD) monitor for simulated subtle pulmonary lesions.
All operations are imaged on an LCD display (4 lines with 16 signs).
The experiments on structural textures such as a wooden surface, an LCD display, and a machined surface, and statistical textures such as granite, leather, and sandpaper have shown the efficiency and effectiveness of the proposed method.
Use of a Human Visual System Model to Predict Observer Performance with CRT vs LCD Display of Images
Performance as measured by receiver operating characteristic (ROC) analysis was significantly better overall on the LCD display (P = 0.0120).
Each pixel in an LCD display has its own individual transistor that controls the transmittance of that pixel.
The bistabilities in STN LCD' s Freedericksz transition at various temperature is reported in this paper,and we give a simple explanation to our experimental results. We also discuss about the potential possibilaty in application and influence on LC display.
Temperature dependence of the pretilt angle for nematic liquid crystals was studied. The pretilt angle is an important factor for liquid crystal display which is decreased with increasing of temperature. It was theorytically explained by steric interaction model.