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The Development of Ecological Constitutions in German Speaking Countries (Secondary Report)
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The Resurgence of the Swiss Watch Industry--A study on SWATCH in terms of global marketing
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A Study on Structural Vibration Control Devices
Get PDFThe Hanshin-Awaji Great Earthquake that happened five years ago revealed the fragility of structures against earthquakes. In light of this calamity, improvement of earthquake-resistance of structures is required. The present study is aimed at improving vibration-control efficiency of a structure against earthquakes, focusing on the vibration-control device to control vibration of buildings caused by the wind and earthquakes and improve the safety as well as habitability of buildings. In this study, two kinds of experiments are conducted: one on the passive-control system, and the other on the active-control system. The passive-control system utilizes the inertial force of the water in a U-shaped pipe attached to a model structure. The active-control system utilizes the optimum signals input by a computer to electric devices based on vibration responses detected from the structure, and vibration of the building is controlled by the output from these devices.departmental bulletin pape
Nonlinear Effects of Collective Excitation of a Trapped Bose-Einstein Condensate
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High Temperature Sensing System--Characteristics of an Operational Amplifier at High Temperatures--
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Some Results Concerning to Unit Group of Bicyclic Biquadratic Fields
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