نتایج جستجو برای: selection combining
تعداد نتایج: 444897 فیلتر نتایج به سال:
in order to determine combining ability, heritability and heterosis of some agronomic traits in rice, 4 pure lines were crossed with 2 cytoplasmic male sterile testers. parents and their f1 progenies arranged in rcb design with three replications. analysis of variance showed significant differences among genotypes for all traits, except for filled grains/panicle. furthermore, the crosses effect...
Switch and stay combining (SSC) is an attractive diversity technique due to its low complexity and compatibility to resourceconstrained wireless networks. This letter proposes a distributed SSC for partial relay selection networks in order to achieve spatial diversity as well as to improve spectral efficiency. Simulation results show that the performance loss (in terms of bit error probability)...
This paper explores antenna diversity issues for Orthogonal Frequency Division Multiplexing (OFDM) in frequency flat and selective fading environment using three combining methods – maximal ratio combining (MRC), equal gain combining (EGC), and selection combining (SC). For OFDM, diversity combining can be done on individual subcarriers (narrowband combining) or on the entire OFDM symbol (wideb...
Five rice genotypes (Hasseni, Dailamani, Shastak-mohammadi, Sange-tarom and Daei-shastak) and their 10 hybrids obtained through half diallel set were evaluated for combining ability and gene effect studies of grain density trait. Single seedlings of each entries were transplanted at 20×20 cm spacing in 3×5 plots in a randomized block design replicated three times during 2004-2005 at research s...
Information about combining ability of inbred lines and genetic variance components of different agronomic traits is a prerequisite for improving the productivity of sunflower hybrids. For this purpose, 20 hybrids obtained from the crosses between five cytoplasmic male sterile lines with four fertility restorer lines were evaluated in a randomized complete blocks design with three replications ...
Purpose: The purpose of this study is to evaluate service quality level in public libraries against Six Sigma quality level by combining SERVQUAL and Six Sigma techniques. Method: This is an applied study conducted as a survey. The population consists of all SANAEE public library members. Through simple random selection, 217 people are chosen. SERVQUAL questionnaire is used as research tool. Fi...
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