Sacroiliac screw fixation in elderly patients with pelvic fractures is prone to failure owing impaired bone quality. Cement augmentation has been proposed as a possible solution, because other anatomic areas this shown reduce loosening. However, our knowledge, not evaluated for sacroiliac screws.We investigated the potential biomechanical benefit of cement cadaver model osteoporotic bone, specifically respect loosening, construct survival, and fracture-site motion.Standardized complete...

The aim of this study was to examine how the interaction between ligament tensions and contact forces guides knee joint through its specific pattern passive motion. A computer model built based on cadaver data. motion lengthening force patterns predicted by were verified with data from literature. contribution each measured in terms rotational moment that it produced about tibial medial plateau anterior-posterior (AP) exerted tibia. high tension anterior cruciate (ACL) geometric constraints...

Objectives Numerous complications following total knee replacement (TKR) relate to the patellofemoral (PF) joint, including pain and patellar maltracking, yet options for in vivo imaging of PF joint are limited, especially after TKR. We propose a novel sequential biplane radiological method that permits accurate tracking tibiofemoral (TF) joints throughout range movement under weightbearing, test it knees pre- post-arthroplasty. Methods A three with end-stage osteoarthritis had undergone TKR...

Bicruciate retaining knee arthroplasty, although has shown improved functions and patient satisfaction compared to other designs of total replacement, remains a technically demanding option for treating severe cases arthritic knees. One the main challenges in bicruciate arthroplasty is proper balancing soft tissue during surgery. In this study biomechanics was investigated using validated computational model joint with high fidelity definitions structures along Taguchi method design...

Non-intrusive activity monitoring of occupants in a home environment plays an important role developing the next generation smart environments and remote health systems. One challenge this research area is lack comprehensive dataset. In paper, we introduce new dataset related to environment, which can be used for human recognition. addition, benchmark our proposed action recognition algorithm some other state-of-the-art methods using

Today, improving the performance of reformers by increasing octane number products has received more attention in refineries. In this regard, researchers have been looking for ways content high-octane such as aromatics. The present research proposes an alternative configuration a conventional moving bed naphtha reactor. new configuration, membrane concept is applied reactors to increase aromatics and hydrogen yields. Most studies on simulation continuous catalytic regenerative (CCR) focused...

The motion of the unloaded knee is associated with tibial internal rotation and femoral posterior translation. Although it known that passive result interaction between articular surfaces ligaments, mechanism through which particular pattern guided not completely understood. goal this study was to focus on geometry identify roles its geometric features have in guiding motion. method used simplified plateaux menisci into basic could be eliminated individually. generated implemented a computer...

We consider the problem of human action recognition using non-negative sparse representation extracted features from spatiotemporal video patches. Our algorithm trains dictionaries for calculation a feature vectors and uses linear Support Vector Machine (SVM) to distinguish between different actions. evaluate performance proposed techniques by two datasets (KTH IXMAS). In both cases, technique outperforms state-of-the-art techniques, achieving 100% accuracy on KTH dataset.

Low weight and high load capacity are remarkable advantages of sandwich panels with corrugated core, which make them more considerable by engineering structure designers. It is important to consider the limitations such as yielding buckling design constraints for optimal these panels. In this paper, multi-objective optimization core carried out minimizing two supposed objective functions, structure’s deflection. The finite element model created using commercial software ANSYS, employed...

In this paper, we propose an efficient human action recognition technique, which utilizes Depth and RGB information of the scene. Our proposed first builds a pair classifiers based on depth to independently predict actions within Then, obtained results from these are combined achieve high accuracies in recognition. experimental show that using amalgamation depth-based RGB-based improves smart home applications.

This study investigates the design requirements for guiding features that can be incorporated into shapes of femoral condyles and tibial component geometry a knee replacement system without occupying intercondylar space joint so cruciates spared still produce more physiological motions. A conceptual surface-guided is introduced to induce effective both in flexion extension by novel shape lateral condyle. accommodate preservation either while deficiencies functions other are compensated...

The authors propose a new approach for network lifetime maximisation in visual wireless sensor networks (VWSN). existence of redundant multiple sensing some parts the field results additional computational complexity and requires more bandwidth battery power nodes, hence reducing lifetime. In VWSN, efficient node collaboration data gathering is key factor to determine proposed provides jointly optimised traffic routing camera selection strategy enhance whole network. this approach, different...

Correct orientation of the acetabular cup considering patient-specific functional pelvic angles is an important factor for improving outcomes and avoiding complications after total hip arthroplasty. This study introduces a new, noninvasive radiographic tool accurately determining patient's specific tilt angle preoperatively, as well assessing with respect to bony landmarks intraoperatively postoperatively. The method was validated by imaging bone replica model pelvis implanted components, in...

Decalin can be used as an energy carrier and hydrogen storage. This paper conducts analysis of the decalin looping approach in optimized thermally coupled dual methanol reactor (OTCDMR) for simultaneous production consumption. configuration takes advantages couple technique membrane technology simultaneously. In first reactor, synthesis dehydrogenation take place tube shell sides, respectively. second one, naphthalene hydrogenation occurs side to produce decalin. this configuration, obtained...