A general procedure for the three dimensional analysis of a gas cavity by the concept of four pole parameters has been developed by Kim and Soedel [1]; the procedure was later extended by Lai and Soedel [2] to two dimensional analysis, which is more efficient in computation than the 3~D analysis method and can solve some geometries which are difficult to solve by the 3-D method. In this study, ...

We express the number of distinct primitive cuboids with given odd diagonal in terms of the twisted Euler function with alternating Dirichlet character of period four, and two counting formulas for binary sums of squares. Based on the asymptotic behaviour of the sums of these formulas, we derive an approximation formula for the cumulative number of primitive cuboids.

In the current work, a magnetic resonance (MR) imaging procedure to evaluate quasi-static motion of the calcaneus, cuboid, navicular, and talus is presented. It is focused on the applicability of a newly developed foot loading and positioning device. For that purpose, tarsal bone positions of three healthy subjects in a pronated and a supinated foot excursion under bodyweight were repeatedly me...

Purpose. To investigate the effect of cuboid osteotomy lateral column lengthening (LCL) for the correction of stage II B adult-acquired flatfoot deformity in cadaver. Methods. Six cadaver specimens were loaded to 350 N. Flatfoot models were established and each was evaluated radiographically and pedobarographically in the following conditions: (1) intact foot, (2) flatfoot, and (3) cuboid osteo...

Determine an optimal set of design parameter of PR whose DW fits a prescribed workspace as closely as possible is an important and foremost design task before manufacturing. In this paper, an optimal design method of a linear Delta robot (LDR) to obtain the prescribed cuboid dexterous workspace (PCDW) is proposed. The optical algorithms are based on the concept of performance chart. The perform...

The os peroneum (OP) is a small sesamoid bone located inside the peroneus longus tendon (PLT), close to the cuboid. The OP can be the cause of pain and can be associated with lesions of the PLT. OP involvement in PLT disorders is frequently misdiagnosed by radiologists. Painful os peroneum syndrome (POPS) refers to a variety of conditions presenting with pain localized on the lateral aspect of ...

Dynamic feature description in human action recognition Ruoyun Gao ii Acknowledgement I wish to thank all those who helped me. Without them, I could not have completed this project. Firstly, I wish to express my deepest gratitude to Dr. Michael S. Lew for his valuable suggestions and unwavering support during my research project and graduation project. Without his encouragement and trust, I cou...

INTRODUCTION We present a rare case of plantar dislocation of the cuboid, fourth and fifth metatarsal joints. Fracture-dislocation in the midfoot region may be subtle and difficult to recognise at the emergency department. CLINICAL PICTURE A 16-year-old girl presented with lateral foot pain and swelling following a fall from a height of 3 m. Initial radiograph revealed a third metatarsal shaf...