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- The two currently widely used indexes, Near Point Distance (NP) and Critical Flicker Fusion Frequency (CFF), have their intrinsic defects. 目前广泛使用的调节近点距离和闪烁融合频率这二项评价视觉疲劳的指标存在着固有的缺欠。
- critical flicker fusion frequency 临界闪烁融合频率
- critical fusion frequency(flicker fusion threshold) 临界融合频率
- flicker fusion frequency(test) 闪烁合频率(试验)
- Apreliminary Study in the Change of the Flicker Fusion Frequency in Different Exercised Loads 闪烁值在不同运动负荷中变化初探
- 3.The two currently widely used indexes, Near Point Distance (NP) and Critical Flicker Fusion Frequency (CFF), have their intrinsic defects. 目前广泛使用的调节近点距离和闪烁融合频率这二项评价视觉疲劳的指标存在着固有的缺欠。
- flicker fusion frequency 闪光临界融合频率
- flicker fusion frequency, FFF 闪光融合频率
- Then,the neural network to estimate critical flicker fusion(CFF)value and subjective fatigue symptom (SFS) from the measurement described above has been built. 应用神经网络,从测定中推定疲劳的闪光融合值和主观疲劳特征。
- In terms of visual fatigue, results showed that both light source and display medium had no significant effects on the change of CFF (Critical Flicker Fusion). 对于受试者的视觉疲劳，实验结果显示，光源和显示媒介两者均对CFF的变化影响不显著。
- flicker fusion critical frequency 闪光融合临界频率
- Multifunction for frequency test, period test, crystal oscillation test and frequency calculation. 多功能设计,具测频,测周期,测晶振及计数功能。
- Multifunction for frequency test, period test, crystal oscillation test, frequency calculation and 13M output test. 多功能设计,具测频,测周期,测晶,振计数及特有13M输出测试功能。
- Then the parameterand implement frame of variable frequency test system are dis cussed. 对变频试验系统的参数和实际组件进行了讨论。
- Evaluation criteria were subjective assessments, near point accommodation (NPA), critical fusion frequency (CFF) and work performance. 衡量效标则包括主观评比、近点调节值(NPA)、闪光融合阈值(CFF)和作业绩效。
- Four dependent measures were Critical Fusion Frequency value (CFF value), subjective visual fatigue, identification performance and attention. 因变项为：CFF值、视觉疲劳主观评量、文字辨识绩效、注意力。
- Furthermore, self-managed rest pattern would also be the best pattern in using near point accommodation (NPA), critical fusion frequency (CFF) as response variables. 而在客观眼睛疲劳数据(CFF差异值、NPA差异值)显示，在自主式休息模式的情况下，眼睛最不容易疲劳。
- This paper intends to introduce a method of frequency test of various circuits of type 8031 SCP and its application in the comprehensive figure display instrument of tower cranes. 本文介绍8031单片机多路测频的一种方法及其在塔吊综合数显仪中的应用。
- critical flicker fusion threshold 临界闪烁融合阈限
- Multifunction for frequency testing, accumulation frequency and crystal frequency. 具备频率,累计频率及晶体频率的多项测量功能。
