This letter describes the potential attenuation mechanism of the charged human body due to walking on the polymer floor. A model is proposed for analyzing the human body potential. The validity is verified by measuring the potentials of the charged acrylic sheet.

For investigating the validity of the two exclusion criteria in the ANSI safety guide revised in 1982, this paper examines numerically the specific absorption rate (SAR) in the lossy sphere simulating a human head exposed to the microwave near-fields due to a half wavelength dipole antenna. The SAR patterns on the spherical surface are calculated with respect to the antenna input powers and the frequencies.

For investigating the pantograph discontact phenomena, this letter describes the statistical measurements of the discontact properties in the sliding-contacts. The current-dependences of the discontact and the discharge rates are elucidated.

This letter presents a new method of estimating the discontact rate of the pantograph using the noise currents in arc discharges, which is independent of the BPF overlapped responses that give large estimation error for the previous methods. The validity is confirmed experimentally.

This letter describes the electrification properties of the human body by walking. A method is presented for measuring the electrified charge of the human body. The quantitative relationships between the electrified charge behaviors and the walking actions are also shown.

This letter describes quantification measurements of the discontact phenomena appearing in the sliding-contacts. The inherent properties of the discontact phenomena are shown by statistically measuring the occurrence time-rates of the discontacts and the discharges.

For studying the harmful influences of a portable transmitter on the human eyeball, this letter examines numerically the specific absorption rate (SAR) using the sphere model exposed to the near-fields of a half-wavelength dipole antenna. The SAR's inside the eyeball due to the 1.5 GHz near-field exposure are calculated in relation to the antenna location.

This letter describes the occurrence-frequencies of the microarcs in the carbon sliding-contacts which are known to give the low radio-noises. A method is presented for statistically evaluating the arc occurrence-frequencies. The measurement results are also shown.

This letter presents a method for estimating the discontact rate by the pantograph noise current using a statistical test. This method requires no apriori information on the current collection system used in the previous methods. The experiment is performed to verify the validity of the above method.

This letter presents a method for real-time visualization of static electricity distribution which can be achieved by rapidly measuring the voltages induced on the array electrodes. For verifying the validity of this method, the measurement examples on the charged sheets are demonstrated.

This letter presents a method for visualizing the 2-dimensional distribution of electrostatic charge, which is based on the principle of the X-ray CT. For confirming the possibility of this method, the focusing images of the simple model are also demonstrated by a computer computation.

For the effectively therapeutic conditions of laser acupuncture, as a first step, this letter examines the thermal stress inside the skin tissue produced by laser acupuncture. A method is presented of calculating the 3-dimensional thermal stress. The numerical results are also shown.