نتایج جستجو برای: down tension system
تعداد نتایج: 2445400 فیلتر نتایج به سال:
Injection of gas into the eye, followed by face-down positioning, is a common protocol for the reseating of the retina in posterior and superior retinal tears and breaks. The physical mechanism by which injected gas helps reattach retinal flaps is often ascribed to the 'buoyancy' force of the injected gas bubble. The various forces at play in this system (surface tension and buoyancy) were calc...
The use of lightweight and cheap UAVs to detect the health of forests and identify the tension of planted can be useful to prevent the spread of pests and diseases. In the present research, a lightweight quadcopter drone with a 12-megapixel camera, visible light range was used. This UAV was emploied to detect leaf tension of pure Quercus Castanifolia plantation, pure Acer Velutinum and their mi...
Amniocentesis is a medical marvel. It allows us to gain information about the genetic formation of the fetus and, if mongoloid, allows the parents the option of aborting the fetus. Mongolism is a terrible illness, involving severe retardation and often distortion of one or more vital organs, and the human costs in guilt, conflict, and tension to most families who have mongoloid children are har...
Objectives: Falling down is one of the most common problems that involve old people. It may affect the physical, emotional and social aspects of individual’s health and may cause economical and social problems for individuals and society. Methods & Materials: In a cross sectional study, 750 old people with ages of 55 or more, living in the city of Shiraz (409 female, 341 male, mean age...
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