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Lamarck formed the hypothesis Inheritance of acquired characteristics, which states that offspring inherit characters acquired by their parents. However, this hypothesis has now been rejected in the field of genetics. Baldwin offered an explanation for observations of inheritance of acquired characters, despite the fact that they are not inherited; an idea referred to as the Baldwin effect. To verify...
This paper presented evaluation of electromagnetic (EM) energy absorption rate in terms of a specific absorption rate (SAR) in a fetus that was exposed to the EM wave from a portable radio terminal when used in the vicinity of the maternal abdomen. As for the numerical calculation, the electric fields around the antenna were analyzed by the finite-difference time-domain method. We considered analyzing...
In this paper, we focus on the concept of time to contact and propose a simple sensor system for detecting the time to contact, and apply it to autonomous control of a flying robot. To discuss the effectiveness of the proposed sensor system and a controller using the sensor system, we develop a flying robot simply without CPU(s) or high spec sensors. We employ only 5 CdS cells and simple analogue...
Understanding the mechanisms which the brain uses to control body movements have been important in the both fields of robotics and neuroscience. Recent neuroscience studies have shown that humans can acquire a neural representation of the relation between motor command and movement, i.e., learn an internal model of the environment dynamics. In this paper, we investigate motor adaptation of human arm...
The inherent dynamics of a vehicle are important factors in automatic vehicle control systems. This paper discusses the stability of an automatic lateral motion controlled vehicle equipped with a four wheel steering system focusing in particular on the vehicle dynamics. The four wheel steering system is configured around a model following control theory. The results of a stability analysis and simulations...
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