In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed.

本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。

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The wire on many headsets can act as an antenna, which can deliver a dose of electromagnetic radiation to your head.

许多耳机的线可以当做天线，将电磁辐射传播到你的头部。

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Dr Martha Linet, the head of radiation epidemiology at the us National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion.

美国国立癌症研究所的辐射列病学主任Martha Linet博士也曾做过与Carpenter教授一样的研究，但得出的结论却不同。

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The study, which was put together by Finland's Radiation and Nuclear Safety Authority, suggests that people who used cellphones longer than 10 years were 40 percent more likely to develop gliomas (a nervous system tumor) on the side of the head where the cellphone's radiation would enter the head.

ENGADGET: Cellphones are dangerous/not dangerous, inconclusive edition

The next big trial results for Erbitux are expected next spring, when ImClone is likely to release results of a big phase-3 trial combining Erbitux with radiation in treating head and neck cancer.

FORBES: Bristol, ImClone File On Erbitux

MediPharma has two drugs derived from Chinese herbs in midstage clinical trials in the U.S., one to improve the potency of radiation therapy on head and neck cancer and the other to treat Crohn's disease, an inflammation of the digestive tract.

FORBES: Ancient Secrets