Abstract Hydrodynamic noise is one of the three major sources submarines, which has a great impact on concealment submarines. Using finite element method, submarine modeled, and sound pressure distribution at various monitoring points under different diving angles studied. The results show that each point small when angle about 10°, provides certain reference for submarine’s covert navigation.

Total elbow arthroplasty is the current gold standard of treatment for unreconstructable distal humerus fractures; however, longevity of the implant remains a concern in younger, more active patients. Distal humerus hemiarthroplasty offers an alternative and may allow for more durable results. The authors retrospectively evaluated the short-term clinical outcomes of 10 patients who underwent el...

Proximal humerus fractures are commonly encountered in elderly patients. Surgical treatment demonstrates high complication rates, including varus construct collapse and screw cutout. In this study, the authors evaluate the clinical outcome of locking plate fixation with intramedullary fibular strut graft augmentation as a primary surgical treatment in the prevention of early collapse and screw ...

background humerus supracondyllar fracture is one of the most common elbow injuries. choice of treatment depends on grading of the displacement. closed reduction and pinning is the preferred method of treatment. open reduction is indicated when we encounter neurovascular injury after closed reduction. one of the most important factors in the outcome of surgery is an appropriate approach that wo...

BACKGROUND There has been lack of epidemiology of proximal humerus fracture using nationwide database in Asia. The purpose of this study was to investigate the incidence of proximal humerus fracture and its mortality following proximal humerus fracture in Korean over 50 years of age. METHODS The Korean National Health Insurance data were evaluated to determine the incidence and mortality of p...

The aim of this study was to evaluate the influence of long-term denervation on volumetric bone mineral density, and geometrical and mechanical properties of the humerus in turkeys. The experiment was conducted from d 22 after hatching until wk 17 of life. All experimental birds (male turkeys) were randomly divided into 2 weight-matched groups. The first group of turkeys served as the control g...