The static failure strength of a frangible laminated composite canister cover subjected to uniform external pressure is studied via both theoretical and experimental approaches. The frangible canister cover, which is fabricated with four plate-like laminated composite parts, which is designed in such a way that it will fail in a predetermined pattern when subjected to an impulsive internal pres...

pressure in congestive heart failure in infancy. A retrospective study was made of the mean right atrial pressure in 131 infants with congenital heart disease. 56 are considered to have been in congestive heart failure at the time of cardiac catheterization, and 75 patients are considered not to have been so. The mean value for mean right atrial pressure was 7-7 mm. in the group who were in hea...

objectivethis study aimed to assess brain natriuretic peptide in early diagnose of cardiac function in children with congenital heart diseases.methodologythis study was performed on children with chd and healthy. severity of heart failure modified ross classification system was used for grouping patients in four classes. for all participants, height, weight and head circumference were measured....

nowadays, due to the increasing power of diesel engines, especially heavy duty diesel engines, and increasing gas pressure inside the combustion chamber, the forces acting on the engine bearings have dramatically raised. on the other hand, becaus eof the competition in the market, it is necessary to increase the engine bearing life and reduce its failure as much as possible. the engine bearings...

inclined retaining walls with slopes less than perpendicular are appropriate candidates in several engineering problems. yet, to the knowledge of authors, only a few analytical solution for calculation of active earth pressure on such walls, which will be usually smaller than the same pressure on vertical ones, has been presented neither in research papers nor in design codes. considering limit...

OBJECTIVE To describe post-extubation noninvasive positive pressure ventilation use in intensive care unit clinical practice and to identify factors associated with noninvasive positive pressure ventilation failure. METHODS This prospective cohort study included patients aged ≥ 18 years consecutively admitted to the intensive care unit who required noninvasive positive pressure ventilation wi...

Continuous arteriovenous hemofiltration (CAVH) was carried out in 8 patients with refractory congestive heart failure. All these patients had heart failure and oliguria for over 24 hours and intensive treatment with digitalis, diuretics, catecholamines and vasodilators was prescribed. Hemodynamics were followed closely during CAVH. During CAVH, pulmonary arterial pressure and pulmonary capillar...

Aging is often associated with increased systolic blood pressure and decreased diastolic blood pressure. Isolated systolic hypertension or an elevated systolic blood pressure without an elevated diastolic blood pressure is a known risk factor for incident heart failure in older adults. In the current study, we examined whether isolated diastolic hypotension, defined as a diastolic blood pressur...

Levels of BP have been associated with increasing rates of renal allograft failure from cadaveric donors, independent of renal function. The effect of BP, a modifiable risk factor, on the failure rates of renal allografts from living donors is unknown and maybe obscured by the rate of decline of renal function from this source of organs. A nonconcurrent cohort study collecting data from 392 rec...