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Nishi-Tokyo-shi, Japan

Sogabe M.,Structure Mechanics Laboratory | Asanuma K.,TESS Co. | Nakamura T.,Track Structures and Geotechnology Laboratory | Kataoka H.,Track Structures and Geotechnology Laboratory | And 2 more authors.
Quarterly Report of RTRI (Railway Technical Research Institute) | Year: 2013

Research has been carried out on the safety of ballasted track with a view to minimizing damage during earthquakes. There remains however a lack of insight into the dynamic behavior of ballasted track itself during earthquakes. Consequently the authors of this paper first carried out static analyses to evaluate stability of straight track resistance to buckling when using continuous welded rails. Secondly the authors carried out dynamic analyses of ballasted track behavior laid directly on the ground or on a structure, under earthquake conditions, based on parameters such as lateral peak resistance of ballast and scale of earthquake, inter alia.

Xia H.,Beijing Jiaotong University | Xia H.,Catholic University of Leuven | Deng Y.,Beijing Jiaotong University | Deng Y.,Catholic University of Leuven | And 6 more authors.
Structural Engineering and Mechanics | Year: 2013

As a new type of vibration reduction, the ladder track system has been successfully used in engineering. In this paper, a numerical model of the train-track-viaduct system is established to study the dynamic responses of an elevated bridge with ladder track. The system is composed of a vehicle submodel, a track submodel and a bridge submodel, with the measured track irregularities as the system self-excitation. The whole time histories of a train running through an elevated bridge with 3×27m continuous PC box girders are simulated. The dynamic responses of the bridge such as deflections, lateral and vertical accelerations, and the vehicle responses such as derailment factors, offload factors and car-body accelerations are calculated. The calculated results are partly validated through the comparison with the experimental data. Compared to the common slab track, adapting the ladder sleeper can effectively reduce the accelerations of the bridge girder, and also reduce the car-body accelerations and offload factors of the train vehicle. © 2013 Techno-Press, Ltd.

Tess Corporation | Date: 1998-02-17

toothbrushes, and protective bristle caps for toothbrushes.

Tess Corporation | Date: 1999-06-01

Non-electric toothbrushes.

Vantage Brands Llc, Tess Skincare Inc. and Tess Llc | Date: 2008-05-13

Non-medicated skincare preparations and cosmetics; nail care preparations, body care preparations, and hair care preparations.

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