نتایج جستجو برای: کامپوزیت frp
تعداد نتایج: 8143 فیلتر نتایج به سال:
Functional Reactive Programming (FRP) is a programming framework for constructing interactive applications in a declarative manner. FRP is now used in animation, vision, robotics and other control systems. Behaviors and Events – values and conditions which are functions of time – play a key role in FRP. In this paper we present an implementation of main FRP features in C++, an widely used imper...
The overall objective of this research project was to conduct an extensive study of the behavior and use of glass fiber-reinforced polymer (GFRP) and carbon FRP (CFRP) materials for bridge construction. In particular, GFRP honeycomb sandwich panels were used as bridge panels and steel-supported bridge deck panels and CFRP and GFRP bars were used as internal reinforcement for precast concrete br...
رزین پلی استر غیراشباع یکی از مهمترین ماتریس های کامپوزیت پلیمرهای ترموست می باشد. در این پروژه علاوه بر اینکه تهیه نیمه صنعتی پلی استر غیراشباع ارتوفتالیک با استفاده از «روش فرایند ذوب با استفاده از کاتالیزور و کمترین مقدار حلال آزئوتروپ- بدون تزریق گاز بی اثر» با موفقیت صورت پذیرفت، زمان انجام واکنش نیز به میزان حدود 15% کاهش داده شد. سالهاست استفاده از کامپوزیت های تقویت شده با الیاف (frp) ...
در دهه 80 میلادی، پژوهشگرانی برای اولین بار در اروپا و آمریکا چسباندن کامپوزیت ها به بتن و سقف را آزمایش کردند. نتایج مثبت آزمایش ها جامعه علمی را تشویق کرد تا ستون ها و سایر قسمت های سازه را نیز با کامپوزیت ها پوشش داده و مورد مطالعه قرار دهند.پس از آن در ژاپن هم به زودی متوجه شدند که روش های مقاوم سازی می تواند در برابر زلزله های شدیدی که آن کشور را تهدید می کند، روش مناسبی باشد.امروزه مقاوم ...
Thin laminates made of high-strength pultruded fiber reinforced polymers (FRP) have been developed to reinforce gluelaminated timber (glulam) beams. The FRP reinforced glulams are significantly stiffer, stronger, and have less variation in bending strength than a conventional (unreinforced) glulam of equal size. Following the technical development and model building code approval of design proc...
Tension stiffening behavior of post-cracking concrete is an important phenomenon which has been extensively studied for reinforced concrete structures. Although externally bonded fibre reinforced polymer (FRP) composites are widely used for strengthening existing RC structures, it remains unclear to what extent the tension stiffening of post-cracking concrete is quantitatively influenced by the...
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We studied the relationship between the atrioventricular nodal functional refractory period (FRP) and refractoriness by mathematical analysis and by measurement during antegrade Wenckebach cycles in 16 dogs. The FRP relates directly to the conduction time of the control beat, and inversely to the coordinates of the point on the A'-H' vs. A-A refractory curve where the slope is -1. The FRP can v...
Characterising the dynamics of landscape-scale wildfires at very high temporal resolutions is best achieved using observations from Earth Observation (EO) sensors mounted onboard geostationary satellites. As a result, a number of operational active fire products have been developed from the data of such sensors. An example of which are the Fire Radiative Power (FRP) products, the FRP-PIXEL and ...
The Vibrio harveyi NADPH-specific flavin reductase FRP follows a ping-pong mechanism but switches to a sequential mechanism in the luciferase-coupled reaction. The bound FMN co-isolated with FRP, while acting as a genuine cofactor in the single-enzyme reaction, functions in the luciferase-coupled reaction as a prebound substrate and is directly transferred to luciferase once it is reduced [Lei,...
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