【摘 要】
:
The main goal of the present study was to compare the impact of dynamic and static light on work performance and means of different measures of alertness.Ten participants experienced four sessions.Eac
【机 构】
:
State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,Hangzhou,CHINA
论文部分内容阅读
The main goal of the present study was to compare the impact of dynamic and static light on work performance and means of different measures of alertness.Ten participants experienced four sessions.Each session had a different lighting: 6000K static light,9000K static light,CCT- low-frequency dynamic light (cycle = 4 hours,CCT between 6000 and 12000 K) and CCT- high-frequency dynamic light (cycle = 2 hours,CCT between 6000 and 12000 K).Each session lasted 5.5 hours.Altogether,12 testing methods were used and they can be divided into four categories: questionnaire,task performance,physiological methods and biochemical methods.The present results suggest that dynamic light generated a higher alertness than static light,and CCT-high-frequency dynamic light had a stronger impact than that of low frequency CCT-dynamic light.
其他文献
The aerospace TT&C system plays an important role in tracking space-craft,and it is necessary for maintaining its good performance and precision.This paper focuses on the application of BDS in the pre
Earth Orientation Parameters (EOP) is essential for spacecraft navigation missions,such as deep space navigation and GNSS navigation mission,directly affecting navigation accuracy of spacecraft.Firstl
In this paper,a high-performance compact rubidium frequency standard (CRFS) has been successfully developed,of which the frequency stability (Allan variance) reached 3E-12/τ0.5(τ=1s~1000s) and frequen
Based on the correlation coefficient between the time series of the GPS network,extracting the common mode error(CME) using principal component analysis(PCA) in Crustal Movement Observation Network of
Three different LED intelligent lighting architectures are analyzed and four interoperability support elements are extracted.Three levels of lighting interoperation modes that can be utilized in LED i
Sidereal filtering is effectiveto mitigatemultipath errors from observations or coordinates by taking advantage of the sidereal repeatability of GPS multipath signals.However,the characteristics of BD
Light emmiting diode (LED) lighting is becoming more and more popular in both commercial and residential lighting system for its energy-efficiency and environmental-friendly merits.For high end lighti
LED light source module is developed according to the design of light distribution of RRGB chip based on the demand of plants for light,temperature and humidity.Several light source modules constitute
An asymmetric PWM controlled LLCC LED driver with capacitor connected in series with secondary winding of the transformer is proposed.Due to the presence of the secondary side resonant capacitor,the D
A psychophysical experiment was conducted to study lighting uniformity across a desk top and the wall as well.The data were used to evaluate three uniformity metrics.Four attributes were scaled includ