The purpose of this study is to develop a rational fabricating system for determining retentive force of cast clasps. The radius of curvature of a circumferential clasp arm is considered to be one of the important factors affecting dynamical properties of cast clasps. In this study, a device for determining the radius of curvature and a computer system for Akers clasps and I-bar clasps were dev...

We investigate whether applying an internal radiocarpal-spanning plate with the wrist in slight extension affects the biomechanical stability of the construct. An unstable distal radius fracture was simulated in 10 cadaveric specimens and immobilized with a radiocarpal-spanning plate holding the wrist in a neutral position. This construct was then physiologically loaded through the wrist flexor...

Although distal radius fractures are in the centre of orthopedic surgeons' attention, the rate of unsatisfactory treatment results remains very high. This study evaluates the analytical approach to distal radius fracture treatment. We observed 59 patients divided into 4 groups according to a modified Fernandez classification, regarding the patomechanism of injury: 1. bending extraarticular frac...

Advancements in thin-film transistor (TFT) technology have extended to electronics that can withstand extreme bending or even folding. Although the use of ultrathin plastic substrates has achieved considerable advancement towards this end, free-standing ultrathin plastics inevitably suffer from mechanical instability and are very difficult to handle during TFT fabrication. Here, in addition to ...

On the development of flexible electronics, a highly flexible nonvolatile memory, which is an important circuit component for the portability, is necessary. However, the flexibility of existing nonvolatile memory has been limited, e.g. the smallest radius into which can be bent has been millimeters range, due to the difficulty in maintaining memory properties while bending. Here we propose the ...

In this article, element free Galerkin method is used for static analysis of thin micro/nanoscale plates based on the nonlocal plate theory. The problem is solved for the plates with arbitrary boundary conditions. Since shape functions of the element free Galerkin method do not satisfy the Kronecker’s delta property, the penalty method is used to impose the essential boundary conditions. Discre...

Abstract Wearable electronic devices are evolving from current rigid configurations to flexible and ultimately stretchable structures. These emerging systems require soft circuits for connecting the various working units of overall system. This paper presents fabrication by electrohydrodynamic (EHD) inkjet-printing technique. Multi-nozzle EHD printing head is employed rapid electric on a wide s...

Springback is a common defect caused by elastic recovery in the plastic forming process, which can cause formed workpiece to deviate from target shape. The purpose of this paper grasp influence law process parameters on springback deviation so as optimize reduce springback. Taking Y-profile research object, such horizontal bending radius, vertical transition zone length, radius roller dies, and...