The study is focused on the dynamic response of head and thoracic area an anthropomorphic test device (ATD) during low-impact collisions with a tram. Two collision scenarios were analyzed: frontal impact (a chest as primary contact area) side thigh area). measurements used pedestrian dummy (Hybrid III 50th percentile male dummy, Jasti Co., ltd., Tokyo, Japan) unique pendulum testing machine (im...

This study focuses on advancing the inversion of aerosol data measured by a cascade impactor. We aim to find and validate comprehensive robust mathematical model for reconstructing particle...

ABSTRACT Aerosol size information is very important for risk estimation of radon exposure. Size measurements of aerosol particles attaching radon progeny were made by using the Dekati's ELPI (Electrical Low Pressure Impactor), and its attachment function was determined. The impactor, which covers a wide size range from 0.03 to 10 μm in diameter, gives number size distribution in real time by an...

A three-dimensional (3D) finite element model (FEM) that simulates the Impactor weight-drop experimental model of traumatic spinal cord injury (SCI) was developed. The model consists of the rat spinal cord, with distinct element sets for the gray and white matter, the cerebrospinal fluid (CSF), the dura mater, a rigid rat spinal column, and a rigid impactor. Loading conditions were taken from t...

The purpose of this study was to develop injury risk functions for dynamic bending of the human femur in the lateral-to-medial and posterior-to-anterior loading directions. A total of 45 experiments were performed on human cadaver femurs using a dynamic three-point drop test setup. An impactor of 9.8 kg was dropped from 2.2 m for an impact velocity of 5 m/s. Five-axis load cells measured the im...

Abstract In the present study, a finite element impact model was developed and analyzed using commercial FEM code ANSYS® then validated via drop-weight experiment. Moreover, double-impactor models were designed with different distribution locations of two impactors to compare properties. A total 18 scenarios comprised asymmetric symmetric types performed. The effect location on resistance force...