The variation of the thermo-hydrodynamic behavior airflow in ventilated cavity behind external claddings a wall structure could potentially affect overall thermal resistance entire structure. Although impact an enclosed air-space on total R-value assembly has been thoroughly investigated literature, it not addressed for cavity. In present study, as first step, plausible definitions to determine...

this paper is a computational study of the behavior of aerodynamics  characteristics of an airfoil with blunt trailing edge and  studies the effects aerodynamic performance caused by modifications made to the trailing edge. blunt trailing edge airfoils are of interest in the engineering of large wind turbine blades because they allow for a strong structure with a high aerodynamic lift to struct...

The stability of ventilated supercavitation is strongly influenced by gas leakage characteristics the cavity. In this study we conduct a systematic investigation such under different closure conditions including re-entrant jet (RJ), quad vortex (QV), twin (TV), and pulsating (PTV), generated from tunnel speeds ventilation conditions. Using high speed digital inline holography (DIH), all individ...

For high-speed underwater vehicles, cavitation can be one of the most important speed barriers. The cavitating flow even complex when an vehicle is sailing close to free surface/wall. In this study, mutual effects surface and near-wall on cloud that surrounds axisymmetric projectile are investigated by water tank experiment computational fluids dynamics (CFD). Split-Hopkinson pressure bar (SHPB...

Copyright © 2010 Frederick Furness Publishing 20 Chronic sinusitis is one of the most commonly diagnosed chronic illnesses, and approximately 10-15% of the European and US population suffer from chronic rhinosinusitis. Inflammation of the nasal mucosa (i.e. rhinitis), due to bacterial, fungal or viral infections, allergies, or exposure to inhaled irritants, leads to acute sinusitis and CRS. Chr...

BACKGROUND Delivery of critical care within a certain window of opportunity is paramount in many disease states, and providing the right care to these patients at the right time in the Emergency Department (ED) can significantly reduce mortality. However, aggressive treatment of these patients often requires endotracheal intubation and mechanical ventilation either in the pre-hospital or ED pha...

background: underlying diseases and aggressive procedures, such as different types of surgery and care, for patients with critical conditions in intensive care units (icu) may be associated with physiological disorders. objectives: this study intended to determine the effect of therapeutic touch on physiological variables of patients undergoing mechanical ventilation in icu. methods: this rando...

Inadequate oral hygiene in intensive care units (ICUs) has been recognized as a critical issue, for it is an important risk factor for ventilator associated pneumonia (VAP). VAP is an aspiration pneumonia that occurs in mechanically ventilated patients, mostly caused by bacteria colonizing the oral cavity and dental plaque. It is the second most common nosocomial infection and the leading cause...

OBJECTIVES Relationships of mechanical ventilation to pneumothorax in neonates and care procedures in particular are rarely studied. We aimed to evaluate the relationship of selected ventilator variables and risk events to pneumothorax. METHODS Pneumothorax was defined as accumulation of air in pleural cavity as confirmed by chest radiograph. Relationship of ventilator mode, selected settings...

plantlets grown in conventional tissue culture systems usually encounter physiological and anatomical abnormalities including inability to photosynthesize, low chlorophyll content, open stomata, lack of a cuticle layer in the leaf, abnormal xylem parenchyma etc. photoautotrophic and photomixotrophic systems could diminish these problems. the purpose of this study was to increase the chlorophyll...