نتایج جستجو برای: cyclical time
تعداد نتایج: 1896179 فیلتر نتایج به سال:
This paper analyses two well-known features of interest rates, namely their time dependence and their cyclical structure. Specifically, it focuses on the monthly Euribor rate, using monthly data from January 1994 to May 2011. Models based on fractional integration at the long run or zero frequency, although adequately describing the persistent behaviour of the series, do not take into account i...
AC servomotor speed or current controller based on PI control and/or optimal control, can not eliminate the cyclical fluctuations of speed or current when subject to periodic disturbances. However, repetitive control performs well when the disturbance is cyclical with constant period (frequency). For a PWM (Pulse Width Modulated) inverter driven AC servomotor, a time delay is inserted between t...
This paper analyses two well-known features of interest rates, namely their time dependence and their cyclical structure. Specifically, it focuses on the monthly Euribor rate, using monthly data from January 1994 to May 2011. Models based on fractional integration at the long run or zero frequency, although adequately describing the persistent behaviour of the series, do not take into account i...
Vascular smooth muscle cells (VSMCs) are exposed to hormonal and mechanical stress in vivo. Hormonal factors have been shown to affect hypoxia-inducible factor-1alpha (HIF-1alpha). How mechanical stress affects the regulation of HIF-1alpha in VSMCs has not been reported previously, and therefore we sought to investigate the regulation of HIF-1alpha by cyclical mechanical stretch in cultured rat...
Low personal savings rates are an important social issue in the United States. We propose and test one particular method to get people to save more money that is based on the cyclical time orientation. In contrast to conventional, popular methods that encourage individuals to ignore past mistakes, focus on the future, and set goals to save money, our proposed method frames the savings task in c...
While the cycle time research literature often advocates the principle of “cyclical thinking,” it also often fails to disclose important assumptions, requirements, and ramifications of the use of this tool. As a result, practitioners may encounter significant roadblocks in applying “cyclical thinking” to their cycle time reduction projects. These critical prerequisite and ensuing conditions hav...
I propose a method to estimate cyclical DSGE models using the raw data. The approach links the observables to the model counterparts via a exible speci cation which does not require that the cyclical component is solely located at business cycle frequencies and allows the noncyclical component to take various time series patterns. Applying standard data transformation induces distortions in st...
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