نتایج جستجو برای: layer
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This document proposes a four level abstraction hierarchy for CAETI systems architectures for review and discussion by the CAETI community. Some possible applications are described brie y.
In this paper, we describe the design and implementation of a hypermedia system that has the following characteristics. First, being designed according to the Dexter hypertext reference model, it has a lay-ered architecture and thus maintains commonality with other hypermedia systems based on the Dexter model. Second, being designed based on the MHEG standard, it has data structures that are in...
Optimizing sensor networks involves addressing a wide range of issues steaming from limited energy reserves, computation power, communication capabilities, and self-managing sensor nodes. The ns-2 simulation environment is a flexible tool for network engineers to investigate how various protocols perform with different configurations and topologies. This paper describes how we extended the ns-2...
an experiment was conducted to determine the differences in body weight (bw), feed intake (fi) and some egg production traits of two strains of layer chickens (isa brown and nera black) and correlate the relationships between the tested traits. the study commenced when the layers were 26 weeks old and a total of 200 (100 of each strain) were used. sixty fresh eggs (30 from each strain) were col...
rice bran (rb) is a major by-product, produced from the rice milling process. this study was conducted to evaluate the performance, egg quality, and blood biochemical parameters of 288 hy-line laying hens fed diets with rice bran and commercial microbial phytase natuphos®5000. the experiment was a 4×2 factorial one with four rb levels (0, 5, 10, and 15%) by two phytase levels (0 and 5000 ftu/kg...
stachys genus with medicinal properties and high polymorphic features has been considered oneof the largest genera of lamiaceae. the aim of this study was to determine the flavonoid patternvariations and flavonoid groups in ten stachys species belonging to two sections; fragilicaulis,and aucheriana. the studied species were collected from natural habitats in iran and analysedfor their flavonoid...
two experiments were conducted to determine the effect of phytase supplementation on layer hens and broiler chickens performance and compare the use of phytase nutrient equivalency values in feed formulation with those fed conventional diet. in the first ex-periment, 640 commercial broiler chicks were used from 11 to 49 days of age. the ex-perimental units were allocated at random to 4 dietary ...
purpose: to determine agreement between peripapillary retinal nerve fiber layer (rnfl) thickness measurements by two different spectral domain optical coherence tomography (sd-oct) machines. methods: both eyes of 89 subjects were evaluated using cirrus oct (carl zeiss meditec, inc. dublin, ca, usa) and topcon oct (3d oct 1000, topcon corporation, tokyo, japan). one eye was randomly selected in ...
بهینه سازی پیکربندی سیستم های مخابراتی، نیازمند داشتن دانش عمیقی از عملکرد و تنظیمات فرستنده و گیرنده می باشد. عملکرد سیستم های مخابراتی، توسط پارامترهای مختلفی از لایه های شبکه ای آن توصیف می شود. در این پژوهش پارامترهای کیفی تعیین کننده ی کارآیی سیستم dvb-t، در لایه-های شبکه ای آن معرفی شده و روابط مربوط به نحوه ی اندازه گیری آنها، مورد بررسی قرار گرفته است. این پارامترها در لایه های فیزیکی، ...
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