O432.1 2003031620用单色亮度比较法确定高温黑体的温度=Determinationof high temperature of blackbody using monochromatic radianceratio method[刊,中]/代彩红(中国计量科学研究院.北京(100013)),于家琳∥光学技术.—2002,28(3)....O432.1 2003031620用单色亮度比较法确定高温黑体的温度=Determinationof high temperature of blackbody using monochromatic radianceratio method[刊,中]/代彩红(中国计量科学研究院.北京(100013)),于家琳∥光学技术.—2002,28(3).—250-252从Planck公式的定义出发,推导出用单色亮度比较法进行温度延伸的原理和方法。在国家光谱辐射度基准改造中,该方法被用来确定高温黑体的温度。实验证明:展开更多
A control problem of a chain of integrator system with measurement noise on feedback sensor is considered. We propose a gain-scaling controller for compensating measurement noise of feedback sensor. Because control sy...A control problem of a chain of integrator system with measurement noise on feedback sensor is considered. We propose a gain-scaling controller for compensating measurement noise of feedback sensor. Because control systems operate via feedback sensor＇s signal, the measurement noise in sensor＇ signal results in performance degradation or even system failure. Therefore, control systems often demand on compensating measurement noise. Our controller is equipped with a compensator and gain-scaling factor in order to reduce the effect of measurement noise on feedback sensor.展开更多
Performing surveys on a single section of a road is quite different from that on a road network. In the first case, the need for performance characteristics of the pavement may be of service to rehabilitation. Surveyi...Performing surveys on a single section of a road is quite different from that on a road network. In the first case, the need for performance characteristics of the pavement may be of service to rehabilitation. Surveying a road network, instead, aims to establish service levels, identify deficiencies and priorities and define budgets for maintenance. This challenge needs a methodological approach in order to widen the action plan and optimize the cost-benefit analysis of each asset through the use of preventive maintenance policies. High-speed monitoring systems on the market were specialized towards the necessity of measuring specific performance of the pavement or mapping land （data inventory）. The technological development of instrumentations such as inertial systems and synchronizers has enabled the integration of different devices and the achievement of the best correlation of data. This is the case of the LARAN （laser road analyzer）, whose helpfulness will be presented within a case study in which geometrical data and surface characteristic information-cracks, texture, profiles-were obtained through a unique survey. The cross-analysis resulted efficient for safety purposes and also for the identification of “black points” corresponding to boundary operative conditions of the road with respect to technical standards and recommendations.展开更多
文摘O432.1 2003031620用单色亮度比较法确定高温黑体的温度=Determinationof high temperature of blackbody using monochromatic radianceratio method[刊,中]/代彩红(中国计量科学研究院.北京(100013)),于家琳∥光学技术.—2002,28(3).—250-252从Planck公式的定义出发,推导出用单色亮度比较法进行温度延伸的原理和方法。在国家光谱辐射度基准改造中,该方法被用来确定高温黑体的温度。实验证明:
基金supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education,Science and Technology(2010-0007325)
文摘A control problem of a chain of integrator system with measurement noise on feedback sensor is considered. We propose a gain-scaling controller for compensating measurement noise of feedback sensor. Because control systems operate via feedback sensor＇s signal, the measurement noise in sensor＇ signal results in performance degradation or even system failure. Therefore, control systems often demand on compensating measurement noise. Our controller is equipped with a compensator and gain-scaling factor in order to reduce the effect of measurement noise on feedback sensor.
文摘Performing surveys on a single section of a road is quite different from that on a road network. In the first case, the need for performance characteristics of the pavement may be of service to rehabilitation. Surveying a road network, instead, aims to establish service levels, identify deficiencies and priorities and define budgets for maintenance. This challenge needs a methodological approach in order to widen the action plan and optimize the cost-benefit analysis of each asset through the use of preventive maintenance policies. High-speed monitoring systems on the market were specialized towards the necessity of measuring specific performance of the pavement or mapping land （data inventory）. The technological development of instrumentations such as inertial systems and synchronizers has enabled the integration of different devices and the achievement of the best correlation of data. This is the case of the LARAN （laser road analyzer）, whose helpfulness will be presented within a case study in which geometrical data and surface characteristic information-cracks, texture, profiles-were obtained through a unique survey. The cross-analysis resulted efficient for safety purposes and also for the identification of “black points” corresponding to boundary operative conditions of the road with respect to technical standards and recommendations.
