Half of each group (n = 36 each) was exposed to UV irradiation (as UV condition) (254 nm) while being incubated in an anaerobic environment (Modular Atmosphere Controlled System, DW Scientific, Shipley, Yorkshire, UK) at 37°C for 2 h, whereas the other halves (n = 36 each) were kept in a black box avoiding UV light penetration (as UV condition) at the same experimental conditions.
A typical clean room has an atmosphere-control system that rigidly regulates temperature and humidity and bars entrance, by means of filters, of all but minuscule contamination.
Atmosphere-control systems in low-rise residential buildings use natural gas, fuel oil, or electric resistance coils as central heat sources; usually the heat generated is distributed to the occupied spaces by a fluid medium, either air or water.
Simulated Martian conditions were achieved by using an atmosphere gas control system.
The air traffic control system is choking.
During acquisition, cells were maintained at 37 °C in a 5% CO2 humidified atmosphere using an environmental control system (Life Imaging Services, Basel, Switzerland).
In order to analyze the influence of atmosphere density to the stability of the control system theoretically, stability criterion of minimum phase systems is used to analyze the stability of the control system under highland environment.
The environmental chamber also provided a gas control system permitting the CO2 atmosphere of the imaging chamber to be monitored, controlled and matched to the buffers appropriate for the cell types under study.
However, the stage began to roll because of aerodynamic forces during the descent through the atmosphere, and the roll rate exceeded the capabilities of the booster attitude control system (ACS) to null it out.
Moreover, by considering integrated guidance and control loops, a solution of the guidance and control system is proposed by three-degree of freedom spherical earth simulation model in atmosphere.
To continue the analysis of passivity of non-linear, time-varying systems we study an entry capsule that enters the atmosphere in a lift-down configuration to avoid skipping flight, and which is controlled by a reaction control system only.
