نتایج جستجو برای: glass cover
تعداد نتایج: 180967 فیلتر نتایج به سال:
الیاف شیشه، الیاف ظریف خمش پذیری از خانواده شیشه با اجزاء اصلی sio2-al2o3-cao-mgo و ناخالصی های قلیایی، اکسید های معدنی tio2,fe2o3 و افزودنی b2o3 و فلئور می باشد و در حالت مذاب بصورت رشته های نخی شکل، رشته رشته می شود.الیاف شیشه به دو گروه اصلی پشم شیشه و الیاف پیوسته تقسیم بندی می شود و الیاف شیشه نیز بر حسب شرایط مصرف به چندین نوع e-glass , a-glass, c-glass , r-glass , s-glass , ecr-glas...
Gold Mosaic glass has been used to decorate items and places since ancient time. The glass structure is divided into three layers: cover glass, gold layer and glass substrate. In this study, the composition of old-styled Thai gold mosaic glass samples was analyzed using SEM/EDX and Raman spectroscopy. It was found that the glass composition was sodiumsilicate based glass. Raman spectroscopy als...
sludge, which is produced as a by-product of all treatment processes, has considerable potential as a fertilizer and soil conditioner. many authorities now discharge the sludge after treatment directly to agricultural land in liquid form, while some others dewater and dry it first. in either case, with proper marketing, it is generally possible for an authority to earn revenue by this means, al...
This paper presents the experimental work conducted on Conventional Basin type Solar Still in order to investigate the effect of some design and operating parameters on the performance of the still. The vapour leakage from the still may significantly vary the performance, lot of literature can be found on this topic. The misalignment or crookedness of distillate channel may be seemingly ignorab...
Solar energy is primary source of all type of energy which is present in nature i.e. all the energy derived from it. So, direct utilization of solar energy into useful energy is important. There are so many solar thermal equipments in which concentrating type collector heated the fluid up to 100 to 400C. It is employed for a variety of applications such as power generation, industrial steam gen...
THE purpose of this paper is to try to explain the phenomenon of the transformation of the mammalian erythrocytes from disks to spheres when a small drop of a saline suspension is placed between glass slide and cover-glass. Ponder (1934) several years ago reviewed the work which had been done in connexion with this phenomenon. As was pointed out by Ponder, who was the first to show clearly the ...
1. Foreign body giant cells may be produced in vitro by the addition of foreign objects such as lycopodium spores and cotton fibers to cultures of chick embryo spleen. 2. These giant cells are formed by the fusion of large mononuclear wandering cells, probably endothelial cells and pulp cells. Connective tissue cells do not take part in their formation. 3. The large giant cells sometimes seen s...
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