This article describes a multimodal cardiovascular information measurement method using a wearable device composed of piezoelectric transducers. Cardiovascular diseases are increasing with the aging population, and they constitute a significant portion of the causes of death and long-term care. In recent years, daily-life monitoring using wearable sensor devices has attracted particular attention for the prevention and early detection of cardiovascular diseases. However, recent wearable devices can only measure limited cardiovascular information such as the heart rate. In contrast, the proposed method can simultaneously measure heart rate variability, pulse wave propagation velocity, and blood flow velocity using only a piezoelectric transducer array.
This article describes a multimodal cardiovascular information measurement method using a wearable device composed of piezoelectric transducers. Cardiovascular diseases are increasing with the aging population, and they constitute a significant portion of the causes of death and long-term care. In recent years, daily-life monitoring using wearable sensor devices has attracted particular attention for the prevention and early detection of cardiovascular diseases. However, recent wearable devices can only measure limited cardiovascular information such as the heart rate. In contrast, the proposed method can simultaneously measure heart rate variability, pulse wave propagation velocity, and blood flow velocity using only a piezoelectric transducer array.
This paper presents a new method for robot spray painting simulation. First, the authors introduce a method for rigid body motion interpolation proposed by Zefran for generating smooth trajectories of a spray gun. Second, the authors propose a method to solve inverse kinematics problems using Lie algebra for computing the motion of the robot manipulator from the spray gun’s motion. Third, the authors propose a method for calculation of color depth of the workpiece painted with the spray gun. Finally, in order to evaluate the usefulness of the three proposed methods, the authors develop a simulation system for robot spray painting.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.