H. Nagahama

Time-scale invariant changes in atmospheric radon concentration and crustal strain prior to a large earthquake (2007)

Y. Kawada, H. Nagahama, Y. Omori, Y. Yasuoka, T. Ishikawa, S. Tokonami, ...

Prior to large earthquakes (e.g. 1995 Kobe earthquake, Japan), an increase in the atmospheric radon concentration is observed, and this increase in the rate follows a power-law of the...

Time-scale invariant changes in atmospheric radon concentration and crustal strain prior to a large earthquake (2007)

Kawada, Y., Nagahama, H., Omori, Y., Yasuoka, Y., Ishikawa, T., Tokonami, S., ...

Prior to large earthquakes (e.g. 1995 Kobe earthquake, Japan), an increase in the atmospheric radon concentration is observed, and this increase in the rate follows a power-law of the...

Anomalous radon emanation linked to preseismic electromagnetic phenomena (2007)

Omori, Y., Yasuoka, Y., Nagahama, H., Kawada, Y., Ishikawa, T., Tokonami, S., ...

Anomalous emanation of radon (222Rn) was observed preceding large earthquakes and is considered to be linked to preseismic electromagnetic phenomena (e.g. great changes of atmospheric electric field...

Time-scale invariances in preseismic electromagnetic radiation, magnetization and damage evolution of rocks (2007)

Kawada, Y., Nagahama, H., Nakamura, N.

We investigate the time-scale invariant changes in electromagnetic and mechanical energy releases prior to a rock failure or a large earthquake. The energy release processes are caused by damage...

Time-scale invariant changes in atmospheric radon concentration and crustal strain prior to a large earthquake (2007)

Kawada, Y., Nagahama, H., Omori, Y., Yasuoka, Y., Ishikawa, T., Tokonami, S., ...

Prior to large earthquakes (e.g. 1995 Kobe earthquake, Japan), an increase in the atmospheric radon concentration is observed, and this increase in the rate follows a power-law of the...

Anomalous radon emanation linked to preseismic electromagnetic phenomena (2007)

Omori, Y., Yasuoka, Y., Nagahama, H., Kawada, Y., Ishikawa, T., Tokonami, S., ...

Anomalous emanation of radon (222Rn) was observed preceding large earthquakes and is considered to be linked to preseismic electromagnetic phenomena (e.g. great changes of atmospheric electric field...

Time-scale invariances in preseismic electromagnetic radiation, magnetization and damage evolution of rocks (2007)

Kawada, Y., Nagahama, H., Nakamura, N.

We investigate the time-scale invariant changes in electromagnetic and mechanical energy releases prior to a rock failure or a large earthquake. The energy release processes are caused by damage...

Time-scale invariances in preseismic electromagnetic radiation, magnetization and damage evolution of rocks (2007)

Y. Kawada, H. Nagahama, N. Nakamura

We investigate the time-scale invariant changes in electromagnetic and mechanical energy releases prior to a rock failure or a large earthquake. The energy release processes are caused by damage...

Anomalous radon emanation linked to preseismic electromagnetic phenomena (2007)

Y. Omori, Y. Yasuoka, H. Nagahama, Y. Kawada, T. Ishikawa, S. Tokonami, ...

Anomalous emanation of radon (²²²Rn) was observed preceding large earthquakes and is considered to be linked to preseismic electromagnetic phenomena (e.g. great changes of...

Mechanical Properties of Rapidly Solidified Aluminium Alloys Extruded from Amorphous or Nanocrystalline Powders. (1998)

Nagahama, H., Ohtera, K., Higashi, K., Inoue, A., Masumoto, T.

Amorphous powders of the al-ni-mm system and nanocrystalline powders of the al-ni-mm system (mm is defined as misch metal) were produced by a high-pressure gas atomization technique. following...

High Mechanical Strength and Strengthening Mechanism of Aluminum Alloys With an Ultrafine Grain Structure. (1998)

Ohtera, K., Kita, K., Nagahama, H., Inoue, A., Masumoto, T.

The al alloys extruded from rapidly solidified powders in al-ni-x (x=zr, ti or mm; mm is mischmetal) systems have very fine structures consisting of the al phase and a large volume fraction of...

Predictive factors for tumor response to systemic chemotherapy in patients with hepatocellular carcinoma (1997)

Nagahama, H, Okada, S, Okusaka, T, Ishii, H, Ikeda, M, Nakasuka, H, ...

Hepatocellular carcinoma with gastrointestinal hemorrhage caused by direct tumor invasion to the duodenum (1997)

Okusaka, T, Okada, S, Ishii, H, Nagahama, H, Yoshimori, M, Yamasaki, S, ...

Clinical response to systemic combined chemotherapy with 5-fluorouracil and cisplatin (FP therapy) in patients with advanced pancreatic cancer (1996)

Okusaka, T, Okada, S, Ishii, H, Nose, H, Nakasuka, H, Nakayama, H, ...