results the results show the artificial lighting obtained by difference methods of the overall lighting from natural lighting in closed blinds mode equal to 266 lux and night lighting 283.5 lux that they have no significant differences with each other (p = 0.269). as well as the illumination intensity obtained from a standard grid method is 283.5 lux and illumination intensity based on luminair...

the fundamental natural frequency of vibration of an inflatable cantilever beam is computed from the system of the three equeations given for vibratory motion of the beam. the effect of various parameters is discussed, and it is shown that, as internal pressure increases, fundamental natural frequency will increase , indicating the stiffening characteristics of internal pressure. a single exper...

Tissue engineering is based on three main factors including scaffolds, cells and growth factors. Natural scaffolds derived from decellularized tissues and organs have been successfully used in tissue engineering. Decellularization studies have shown that natural scaffolds which maintaine their main structure and properties could be a suitable tool for studying cellular behaviors and preparation...

decreasing water loss and increasing the irrigation times are basic methods to develop agriculture, success in natural recourse projects, minimize the stress to planted bushes in natural fields and increase the productivity of soil and water sources. the use of super absorbent is one of these strategies to achieve these goals. the main purpose of this research was to study the effect of super a...

This paper reviews indoor heat convection and buoyancy-driven natural ventilation in enclosed space with sources different forms such as point, line, plane, volume or combination of them. The thermal flow is driven by these accumulated the enclosure. Thermal plume evolves based on its dynamic law above conversely affected environment geometric structure. Therefore, thermal-driven flows restrict...

The article is devoted to the peculiarities of taking into account natural and climatic conditions when designing a highway. It shown that environmental directly affect specifics designed roads. However, they can play dual role: both promote counteract long service life roadbed. Since it impossible influence weather conditions, necessary provide full protection All factors affecting road condit...