Ice accumulation causes great risks to aircraft, electric power lines, and wind-turbine blades. For the ice on structural surfaces, adhesion force is a crucial factor, which generally has two main sources, for exampple, electrostatic mechanical interlocking. Herein, we present that surface acoustic waves (SAWs) can be applied minimize by simultaneously reducing interlocking, generating interfac...

In a previous publication the authors proposed a continuous model for describing the mechanical behaviour of ‘Running Bond’ masonry walls. Here a different masonry structure is considered. This structure is ‘bi-atomic’ in the sense that its pattern consists in two kind of blocks with different. The homogenization by differential expansions technique is used for obtaining an equivalent Cosserat ...

The Long Island Railroad (LIRR) operates one of the busiest passenger rail networks in the US, and for over 100 years, the Jamaica terminal is essential to maintain passenger trains to and from Manhattan. Over this time, the patterns of ridership have changed dramatically and there is a new terminal stop at Grand Central Station for LIRR passengers. The “East Side Access” will provide the LIRR ...

Given a family I of intervals, two intervals in I interlock if they overlap but neither of them strictly contains the other. A set of intervals in which every two are related in the reeexive transitive closure of the interlock relation is referred to as an interlocking set. The task of determining the maximal interlocking sets of I arises in numerous applications including traac control, robot ...

A railway interlocking system (RIS) plays a vital role in the safe transportation of a railway system. It is responsible for the safe routes of trains making sure that each train movement follows the other in a proper and safe sequence. Detailed verifications and evaluations are mandatory before deploying an RIS, since it is a safety critical system (SCS). But the increasing complexity of the R...

BACKGROUND Plate osteosynthesis is the most commonly used technique for the treatment of diaphyseal forearm fractures in adults. However, application of a plate can disrupt the periosteal blood supply and necessitates skin incisions that may be unsightly, and there is a risk of refracture if the implant is removed. The purpose of this study was to assess the early results of the use of a contou...

<p>Technological developments in the field of railway signaling have allowed more and flexibility management rail traffic, especially with computer interlocking. However, differences principles from one country to another as well structure interlocking software communication protocols depending on suppliers lead interoperability difficulties at borders between Some deployed projects deal ...

This study was designed to compare bone mineral density, periosteal callus production, new bone formation, bone porosity, histologic appearance, and union of mid-diaphyseal segmental allografts of the femur stabilized with an interlocking nail technique in a canine model 6 months after the procedure. An in vivo study was performed to compare the effects of augmenting interlocking nail fixation ...

PURPOSE To assess the clinical outcome of unreamed intramedullary interlocking nailing in open fractures of tibia, and to evaluate the incidence of complications in these open fractures as a result of the unreamed intramedullary nailing. METHODS Between June 1999 and May 2000, a total of 60 cases of open tibial shaft fractures were operated on with unreamed interlocking nails at Safdarjung Ho...

BACKGROUND Acetabular reinforcement devices (ARDs) are frequently used as load-sharing devices to allow allograft incorporation in revision hip arthroplasty with massive acetabular bone loss. The key to a successful reconstruction is robust fixation of the device to the host acetabulum. Interlocking fixation is expected to improve the initial stability of the postoperative construct. However, a...