Hitoshi Yamaguchi

Learn More
As emerging technologies are being developed, a ubiquitous computing environment will be established in the near future. Researches on service provisions for users over the ubiquitous computing environment have been started. The implementation method of an actual service, based on our proposed service-provision framework, is described in this paper. The(More)
To evaluate the environmental contamination and radiation exposure dose rates due to artificial radionuclides in Kawauchi Village, Fukushima Prefecture, the restricted area within a 30-km radius from the Fukushima Dai-ichi Nuclear Power Plant (FNPP), the concentrations of artificial radionuclides in soil samples, tree needles, and mushrooms were analyzed by(More)
For the current on-site evaluation of the environmental contamination and contributory external exposure after the accident at the Chernobyl Nuclear Power Plant (CNPP) and the nuclear tests at the Semipalatinsk Nuclear Testing Site (SNTS), the concentrations of artificial radionuclides in soil samples from each area were analyzed by gamma spectrometry. Four(More)
We examined the upper limit of a diver's fin-kick thrust force using a stationary-swimming ergometer. Heart rate, respiratory minute volume, oxygen uptake, and performance rate were measured in four male subjects who swam constantly for 8 min to maintain a horizontal position against an applied force at a depth of 0.7 m. The water temperature was controlled(More)
OBJECTIVE To ensure good outcomes in the management of subarachnoid haemorrhage (SAH), accurate prediction is crucial for initial assessment of patients presenting with acute headache. We conducted this study to develop a new clinical decision rule using only objectively measurable predictors to exclude SAH, offering higher specificity than the previous(More)
In a ubiquitous computing environment, people can obtain and transmit information anytime, anywhere. In this situation, a user's context plays a key role. Unfortunately, the ubiquitous environment introduces some problems. The first is ease of access to what users truly want. The second important problem is handling private information. In utilizing a(More)
  • 1