نتایج جستجو برای: spiral wound membrane

تعداد نتایج: 486863  

2012
Michael L. Johns Einar O. Fridjonsson Hans S. Vrouwenvelder M. L. Johns H. S. Vrouwenvelder

Magnetic Resonance Imaging (MRI) has been applied to non-invasively elucidate several aspects of bio-fouling of nano-filtration and reverse osmosis membranes (ROMs) modules as a function of fouling time. These include the spatial distribution of biomass accumulation and its effect on system hydrodynamics, the effect on these parameters of ROM cleaning protocols and the detailed validation of 3D...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده فنی و مهندسی 1387

چکیده ندارد.

Background: Equine wounds, particularly those involving the distal portion of the limbs, often undergo prolonged complex healing and may enter a non-healing state with obvious financial and welfare implications. Poor blood supply and lower levels of oxygen to the lower limbs lead to imbalance of growth factors related to wound healing. Decellular amniotic membrane has been widely used in soft t...

Journal: :Mechanical Engineering and Technology 2016

2007
Chi Yuan

Rings are common in disk galaxies. These rings are either indistinguishable from a pair of tightly wound spirals, or themselves are a part of the spiral structure. Furthermore, their occurrence is seen coincident with a bar in the center. In this paper, we interpret this spiral-ring structure as density waves resonantly excited by a rotating bar potential. The theory gives excellent agreement f...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده پزشکی 1390

nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...

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