نتایج جستجو برای: bode plote
تعداد نتایج: 1157 فیلتر نتایج به سال:
This study investigated the static and dynamic characteristics of the pupillary light reflex (PLR) in the alert rhesus monkey. Temporal characteristics of the PLR were investigated with Maxwellian viewing during sinusoidal changes in illumination of a 36 degrees stimulus in both monkeys and humans. Bode plots of the PLR response were fitted by a linear model composed of a delay combined with a ...
BACKGROUND Depression and smoking decrease health status in Chronic Obstructive Pulmonary Disease (COPD), but the combined effect of the two factors is unknown. This study aimed to assess the interactive effects of depression and smoking on the severity of patients with COPD. METHODS A prospective cohort study including 2,268 patients with COPD was conducted in seven rural communities from Ma...
RATIONALE Patients with chronic obstructive pulmonary disease (COPD) are afflicted by comorbidities. Few studies have prospectively evaluated COPD comorbidities and mortality risk. OBJECTIVES To prospectively evaluate COPD comorbidities and mortality risk. METHODS We followed 1,664 patients with COPD in five centers for a median of 51 months. Systematically, 79 comorbidities were recorded. ...
RATIONALE Accurate prediction of mortality helps select patients for interventions aimed at improving outcome. OBJECTIVES Because chronic obstructive pulmonary disease is characterized by low-grade systemic inflammation, we hypothesized that addition of inflammatory biomarkers to established predictive factors will improve accuracy. METHODS A total of 1,843 patients enrolled in the Evaluati...
The theory of fundamental design limitations is well understood for the case that the performance variable is measured for feedback. In the present paper, we extend the theory to systems for which the performance variable is not measured. We consider only the special case for which the performance and measured outputs and the control and exogenous inputs are all scalar signals. The results of t...
One of the mostperplexing passages in Wittgenstein's Philosophical Investigations occurs in Part Two where it is asserted: "Ifa lion could talk, we could not understand him."[ This remark has been interpreted as anything from a mere comment concerning our conception of a lion to an empirical claim regarding the communicative capacities of lions and nonhumans in general to a highly speculative a...
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