Optically anisotropic subwavelength scale dielectric particles have been shown to enable studies of the mechanical properties of bio-molecules via optical trapping and manipulation. However, techniques emphasized to date for fabrication of such particles generally suffer from limited uniformity and control over particle dimensions, or low throughput and high cost. Here, an approach for rapid, l...

INTRODUCTION Primary stability achieved by press-fit is critical for the longterm success of cementless hip stems [1]. It is recognized that micromotions over 30-150 micron prevent osteointegration and lead to implant failure [2]. Conversely, excessive press-fit can cause intra-op fractures [3]. A device able to intraoperatively assess stem stability was developed and validated [4]. It consists...

Preload is applied to screws manually or using a torque wrench in dental implant systems, and the preload applied must be appropriate for the purpose. The aim of this study was to assess screw loosening and bending/torsional moments applied by clinicians of various specialties following application of manual tightening torque to combinations of implants and abutments. Ten-millimeter implants of...

Increasing demand for higher production flexibility and smaller batch size pushes the development of manufacturing industry towards robotic solutions with fast setup reprogram capability. Aiming to facilitate assembly lines robots, learning from demonstration (LfD) paradigm has attracted attention. A robot LfD framework designed skillful small parts applications is developed, which takes positi...

The articular surface of the normal humeral head has a variable posterior and medial offset with respect to the central axis of the humeral shaft. Recreation of the normal humeral head shaft offset is postulated to be an important consideration during shoulder arthroplasty. However, the effect of humeral head malposition is unknown. The purpose of this study was to determine the effect of artic...

OBJECTIVES The purpose of this study was to clarify the occurrence of Raynaud's phenomenon among workers using an impact wrench for a long time. METHODS The subjects were 704 workers regularly using an impact wrench and taking special medical examinations for vibration syndrome from 1981 to 2008. Raynaud's phenomenon was observed in 39 subjects during the observation period. RESULTS The mea...

The motivation of our current research is to devise motion planners for legged locomotion that are able to exploit the robot’s actuation capabilities. This means, when possible, to minimize joint torques or to propel as much as admissible when required. For this reason we define two new 6-dimensional bounded polytopes that we name Actuationconsistent Wrench Polytope (AWP) and Feasible Wrench Po...