Abstract The present research introduces a new configuration of thin-walled nested tube structure as possible energy absorber subjected to lateral compression. nested-tube structures were configured in system comprising four tubes arranged different ways. All the systems quasi-statically compressed direction on universal mechanical tester obtain their absorption characteristics. Two modes defor...

A finite element model of fractured tibia with Joshi’s External Stabilizing System (JESS) mounted on it was developed using 3D beam elements in the ANSYS software. The model was loaded in axial compression and the average axial stiffness of the model was calculated. The analytical value of axial stiffness was compared with reported experimental value to validate the finite element model. The va...

In this study, the light diffraction of temporal focusing multiphoton excitation microscopy (TFMPEM) and the excitation patterning of nonlinear structured-illumination microscopy (NSIM) can be simultaneously and accurately implemented via a single high-resolution digital micromirror device. The lateral and axial spatial resolutions of the TFMPEM are remarkably improved through the second-order ...

Despite their tremendous contribution to biomedical research and diagnosis, conventional spatial sampling techniques such as wide-field, point scanning or selective plane illumination microscopy face inherent limiting trade-offs between spatial resolution, field-of-view, phototoxicity and recording speed. Several of these trade-offs are the result of spatial sampling with diffracting beams. Her...

Siffness matrices for axial and bending deformations of a beam having a rectangular cross sectional area of constant width and linearly varying thickness are developed. A consistant load vector for a uniformly distributed lateral load is also calculated, using the principal of potential energy. The matrices are used to obtain numerical results for a variety of beams with non-uniform thickness t...

Recent advances in far-field fluorescence microscopy have led to substantial improvements in image resolution, achieving a near-molecular resolution of 20 to 30 nanometers in the two lateral dimensions. Three-dimensional (3D) nanoscale-resolution imaging, however, remains a challenge. We demonstrated 3D stochastic optical reconstruction microscopy (STORM) by using optical astigmatism to determi...

STUDY DESIGN This is an in vitro biomechanical study. OBJECTIVE To compare the biomechanical stability of the 3 C1-C2 transarticular screw salvaging fixation techniques. SUMMARY AND BACKGROUND DATA Stabilization of the atlantoaxial complex is a challenging procedure because of its complicated anatomy. Many posterior stabilization techniques of the atlantoaxial complex have been developed wi...

OBJECTIVE To compare the mechanical parameters between two methods for stabilization through compression: 1.5 mm axial compression plate versus conical compression screw used as an intramedullary tutor. METHODS Polyurethane models (Sawbone(®)) that simulated transverse fractures of the proximal phalanx were used. The models were divided into three groups: lateral plate, conical screw and no i...

Most anuran larvae show large lateral oscillations at both the tip of the tail and the snout while swimming in a straight line. Although the lateral deflections at the snout have long been considered an inefficient aspect of tadpole locomotion, a recent hydrodynamic model suggests that they may in fact help generate thrust. It is not clear though exactly where this bending takes place. The vert...

Study Design This was a double-blinded cross-sectional study, which obtained no financial support for the research. Purpose To obtain a detailed morphometry of the lateral mass of the subaxial cervical spine. Overview of Literature The literature offers little data on the dimensions of the lateral mass of the subaxial cervical spine. Methods We assessed axial, sagittal, and coronal comput...