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This research proposes a noncontact heart rate measurement method using medical radar and artificial intelligence techniques. This technique has a significant role in the design and development of a wireless system that monitors the body’s vital signs. Firstly, based on a signal model describing chest surface movement, we propose a method to create a dataset for the training process using the long-short-term memory model. Secondly, a novel method to extract chest motion from the received radar signal is proposed. Finally, the heart rate will be estimated by using the obtained model and the received motion signal. The performance of the proposed method is evaluated through the root mean square error parameter as well as compared with other methods. Experimental results evaluated according to Bland–Altman achieved an accuracy of 96.67%.

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This study examines the relationship between the choices of family or outside CEO with company performance. The sample of this study covered 65 Vietnamese family companies in 17 industries. The findings indicate, as anticipated, that family CEO enhanced company performance greater than outside CEO. Within the family company, CEO-successor enhanced the firm value lower than the CEO-founder. Contacts with the business environment, education, experience and sufficient business capital may provide young CEOs with values added to better manage family companies than founders.