The construction of grouting butt joints bamboo tubes is simple and efficient. However, when the joint bent, low tensile strength mortar easily leads to cracking prior failure tube. In this paper, a comparative test bending capacity was performed on reinforced by nonperforated, fully perforated, semiperforated steel plates embedded in obtain load-displacement curves ultimate bearing various spe...

Transmission spectra of thin metal films perforated by a high density of disordered sub-wavelength diameter cylindrical holes have been measured. The films, consisting of duplex layers of chromium and gold or chromium and silver, were characterised by perforations of mean diameter, hdi and fractional area coverage, F: films with hdi and F of 187F 50 nm and 0.21, and 340F 67 nm and 0.28 were stu...

PURPOSE Emergency operations for perforated peptic ulcer are associated with a high incidence of postoperative complications. While several studies have investigated the impact of perioperative risk factors and underlying diseases on the postoperative morbidity after abdominal surgery, only a few have analyzed their role in perforated peptic ulcer disease. The purpose of this study was to deter...

The effects of repairing the perforated sinus membrane with collagen membrane are unknown. The purpose of this pilot study was to clinically, histologically, and histomorphometrically evaluate the results of repairing the perforated sinus membrane with resorbable collagen membrane. A split-mouth design was followed in the current study. Five subjects requiring bilateral sinus grafting were incl...

The study of the acoustic effect of perforated plates by Large-Eddy Simulations is reported. The ability of compressible Large-Eddy Simulations to provide data on the flow around a perforated plate and the associated acoustic damping is demonstrated. In particular, assumptions of existing models of the acoustic effect of perforated plate are assessed thanks to the Large-Eddy Simulations results...

The ingestion of non-steroidal anti-inflammatory drugs (NSAID) in 272 patients with bleeding or perforated peptic ulcer was compared with 272 age/sex matched controls. A significantly higher proportion of patients with gastric ulcers had received NSAID than those with duodenal ulcers. Twelve of 90 (13%) patients admitted with bleeding duodenal ulcers had received NSAID compared with 11 of 26 (4...

Perforated appendix is a serious .surgical condition that carries a high morbidity. Antibiotic treatment is often started before the availability of bacteriological reports. The choice of antibiotics would depend on the bacteriology associated with perforated appendix. In a retrospective survey of the bacteriology of peritoneal pus obtained from cases of perforated appendix at the General Hospi...

OBJECTIVE To examine whether density of providers or health care facility factors have a significant effect on the rates of perforated appendicitis in the pediatric population. DESIGN A retrospective database analysis. Data were linked to the Area Resource File to determine if there was an association between perforated appendicitis and density of provider and facility factors. SETTING The ...