the share of dc-based renewable energy resources (rers) and electricity storage systems are increasing due to developments of smart grid technologies. moreover, the share of dc-based load has rapid growth due to significant developments of power electronic technologies. therefore, a more flexible power system is required for efficient integration of emerging loads and generators. in this paper,...

UNLABELLED Attenuation, photon scatter, and distance-dependent collimator-detector response are major degrading factors in myocardial SPECT images. The current study investigated whether compensation for these factors improves perfusion defect detectability, and compared the results for human observers with a previous study using a mathematical observer. METHODS Four methods were investigated...

A number of surgical procedures have been described for reconstruction of the disrupted acromioclavicular (AC) joint. Among these is the use of anchor sutures tied over a small button plate. The present study aims to evaluate the preliminary results with this technique in 15 patients with a mean age of 31 years (range: 19-48 years). The shoulder was evaluated clinically using the Constant-Murle...

The role of local nanometric thinning in trivalent chromium conversion coating for the electrochemical stability buried metal-oxide-model epoxy interface formed on a rough (arithmetic average roughness parameter Ra = 5 µm) electrodeposited substrate is presented. For different morphologies and sizes thinned zones, was tested AC-DC-AC procedure. Local oxide at zones <0.25 mm2 successfully detect...

AIM Combined PET/MR systems have now become available for clinical use. Given the lack of integrated standard transmission (TX) sources in these systems, attenuation and scatter correction (AC) must be performed using the available MR-images. Since bone tissue cannot easily be accounted for during MR-AC, PET quantification can be biased, in particular, in the vicinity of the skull. Here, we ass...

BACKGROUND Articular cartilage (AC) injuries and malformations are commonly noticed because of trauma or age-related degeneration. Many methods have been adopted for replacing or repairing the damaged tissue. Currently available AC repair methods, in several cases, fail to yield good-quality long-lasting results, perhaps because the reconstructed tissue lacks the cellular and matrix properties ...

This paper presents a model based vision system for dentistry that will assist in diagnosis treatment plan ning and surgical simulation Dentistry requires an ac curate D representation of the teeth and jaws for di agnostic and treatment purposes The proposed inte grated computer vision system constructs a D model of the patient s dental occlusion using an intra oral video camera The space carvi...

BACKGROUND Acromioclavicular (AC) joint injuries, particularly sprains, are common in athletic populations and may result in significant time lost to injury. However, surprisingly, little is known of the epidemiology of this injury. PURPOSE To define the incidence of AC joint injuries and to determine the risk factors for injury. STUDY DESIGN Descriptive epidemiological study. METHODS A l...

and their multifunctional applications Kai Li,*ac Yuanyuan Liu,a Yuanyuan Li,b Qi Feng,a Hongwei Hou*a and Ben Zhong Tang*c a College of Chemistry and Molecular Engineering, Zhengzhou University, Henan 450001, P. R. China. b College of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Henan 450001, P. R. China. c Department of Chemistry and Hong Kong Branch of C...