In new generation aero-engines, lean-burn combustors are equipped with swirl injectors in order to reduce pollutant emissions. At the exit of these combustors, flow is dominated by temperature non-uniformity (hot-streak) and residual swirl. Available research has focused mainly on isolated effects only or hot-streak aerodynamic performance thermal high-pressure turbine (HPT). Only few studies i...

Several migratory bird species show active cycles of hypertrophy and atrophy of nutritional organs and selected muscle groups. We develop a model for nutritional organs to identify the conditions under which such a pattern of structural change is optimal. Migrants may choose the size of two components of lean mass: a constant component that they carry throughout the entire migration period and ...

A significant proportion of the mortality and morbidity of severe burns is attributable to the ensuing hypermetabolic response. This response can last for as long as 1 year after injury and is associated with impaired wound healing, increased infection risks, erosion of lean body mass, hampered rehabilitation, and delayed reintegration of burn survivors into society. Pharmacologic and nonpharma...

Severe burn patients are some of the most challenging critically ill patients, with an extreme state of physiological stress and an overwhelming systemic metabolic response. Increased energy expenditure to cope with this insult necessitates mobilization of large amounts of substrate from fat stores and active muscle for repair and fuel, leading to catabolism. The hypermetabolic response can las...

How much to spend is a key managerial decision for entrepreneurs. Arguments favoring lean startups rely on the burden of rapid growth, reduced monitoring costs or the inefficient use of cash. Arguments favoring high “burn rates” rely on the early creation of economies of scale and complementary assets; and the motivation benefits of efficiency wages and experimentation. We argue that survival b...

Severe burn patients are some of the most challenging critically ill patients, with an extreme state of physiological stress and an overwhelming systemic metabolic response. Increased energy expenditure to cope with this insult necessitates mobilization of large amounts of substrate from fat stores and active muscle for repair and fuel, leading to catabolism. The hypermetabolic response can las...

During the rehabilitation phase of burn injury, patient care transitions from critical care medicine to restorative treatment strategies that encompass physical and occupational therapies, nutrition repletion, and psychosocial support for community reintegration. As pediatric burn patients undergo rehabilitation, nutrition assessment remains ongoing to define nutritional status and any alterati...

Recently, ammonia is emerging as a potential source of energy in power generation and industrial sectors. One the main concerns with combustion large amount NO emission. Air staging conventional method reducing emission which similar to Rich-Burn, Quick-Mix, Lean-Burn (RQL) concept. In air-staged combustion, major reduction based on near zero at fuel-rich NH3/Air mixture. A secondary air stream...

Molecular weight (Mw) effects in poly(vinylidene fluoride) (PVDF) influence both processability and combustion behavior energetic Al–PVDF filaments. Results show decreased viscosity unloaded fuel-lean (i.e., 15 wt% Al) In highly loaded filaments 30 Al), reduced is minimal due to higher electrostatic interaction between Al particles low Mw chains as confirmed by Fourier-transform infrared spectr...