This paper presents a low-complexity pitch estimation algorithm for packet loss concealment. The algorithm divides the pitch estimation into three stages with each additional stage providing further accuracy. Compared with a system based on G.711 Appendix I, the proposed algorithm requires approximately 32 percent fewer cycles on a DSP processor integrated in a Bluetooth chip. Furthermore, obje...

The strain of Penicillium janthinellum NCIM 1171 was subjected to mutation involving treatment of Ethyl Methyl Sulfonate (EMS) for 24h followed by UV-irradiation for 3min. Successive mutants showed enhanced cellulase production (EMS-UV-8), clearance zone on Avicel containing plate (SM2) and rapid growth on Walseth cellulose agar plates containing 0.2% 2-deoxy-d-glucose (SM3). These mutants were...

Drought is an enduring abiotic constraint to stable and consistent maize productivity under climate change, especially for low rainfall regions with limited irrigation. One adaptation severe drought using drought-tolerant (DT) hybrids. Here, we characterize differences between conventional DT hybrids in terms of yield water-use efficiency conditions at a regional scale the Texas High Plains (TH...

the stability of ten winter safflower cultivars and lines was evaluated in three different environmental conditions in karaj, isfahan and darab in iran, a randomized complete block design with 4 replications over three years (1995, 1996 and 1997). simple analysis of variances of grain and oil yields from each experiment showed significant differences among the genotypes. after conducting a homo...