نتایج جستجو برای: vi improvers
تعداد نتایج: 43287 فیلتر نتایج به سال:
We now introduce some notations for further development. Let α(vi) the set of all ancestors of vi ∈ V and ᾱ(vi) = α(vi) ∪ vi (ancestors and the node itself). Let σ(vi) be the set of all descendants of vi ∈ V and σ̄(vi) = σ(vi)∪vi. Let (vi) be the set of exclusive nodes, those sharing an exclusion edge with vi. Let o(vi) be the set of overlapping nodes, those sharing no edges with vi. Depending o...
To expand the applications of polymer friction modifiers in low viscosity oils suitable for hybrid power systems, tribological properties five kinds oil samples at different temperatures were studied, which compounded with Perfad XG 2500, molybdenum dialkyl dithiocarbamate (MoDTC), zinc dithiophosphate (ZDDP). When 2500 is used alone, it forms a brush-like surface film temperatures, can provide...
Development of novel, eco-friendly coating systems for application in lawn and turf management.
Recognition of Indian language scripts is a challenging problem. Work for the development of complete OCR systems for Indian language scripts is still in infancy. Complete OCR systems have recently been developed for Devanagri and Bangla scripts. Research in the field of recognition of Telugu script faces major problems mainly related to the touching and overlapping of characters. Segmentation ...
Heavy metals in textile wastewater represent a major environmental problem, and are a potential danger to human health when present on textiles. Furthermore, the presence of some metals influences the production of textiles. Heavy metals are often used as oxidizing agents, as metal complex dyes, dye stripping agents, fastness improvers, and finishers. Thus, they act as hazardous sources through...
در بخش اول این پایان نامه، سنتز نانوذرات نقره صفر ظرفیتی داخل تخلخل های مزوحفره سیلیکا با استفاده از کاهش نمک نقره گزارش شده است. مزوحفره سیلیکا و مزوحفره سیلیکای حاوی نانوذرات نقره صفر ظرفیتی با استفاده از تکنیک پراش اشعه ایکس (xrd)، میکروسکوپ الکترونی عبوری (tem)، اسپکتروسکوپی تبدیل فوریه (ft-ir) و روش بارت-امت-تلر (bet) شناسایی شدند. با استفاده از بستر مزوحفره سیلیکای حاوی نانوذرات نقره صفر ...
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