we consider an m/g/1 queue with regular and optional phase vacation and withstate dependent arrival rate. the vacation policy is after completion of service if there are no customers in the system, the server takes vacation consisting of k -phases, each phase is generally distributed. here the first phase is compulsory where as the other phases are optional. for this model the supplementary var...

Native polyacrylamide gel electrophoresis is a powerful approach for visualizing RNA folding states and folding intermediates. Tris-borate has a high-buffering capacity and is therefore widely used in electrophoresis-based investigations of RNA structure and folding. However, the effectiveness of Tris-borate as a counterion for RNA has not been systematically investigated. In a recirculated Hep...

Extensive studies that have been conducted on the Pb(Mg1/3Nb2/3)O3 (PMN) family of relaxor ferroelectrics have led to the establishment and acceptance of the ‘‘spacecharge’’ model as a basis for explaining their structures and dielectric properties. In this model, the arrangement of the metal cations on the octahedral sites of the perovskite structure is interpreted in terms of the formation of...

C160 P.02.16.2 Acta Cryst. (2005). A61, C160 Crystal Structure Refinement of Sr(Mg1/3Nb2/3)O3 Hyun Min Park, Hwack Joo Lee, Su Jin Chung, Yang Koo Cho, Sahn Nahm, New Materials Evaluation Center, Korea Research Institute of Standards and Science, P.O. Box 102, Taejon, 305-600 Korea. Division of Materials and Metallurgical Engineering, Korea University, Seoul, 136-701, Korea. E-mail: hmpark@kris...

Copper substitution together with nano-structuring are applied the aim to increase bactericidal performances of rocksalt-type MgO oxide. The partial magnesium ions Cu2+ has been successfully achieved in both micrometer- and nanometer-sized particles up 20 mol% increments 5 mol%. Microstructural analyses using Integral Breadth method revealed that thermal decomposition single source precursor Mg...

La maladie de Gaucher de type 1 (MG1) est une maladie multisystémique rare due à un déficit génétique en bêtaglucocérébrosidase lysosomale. Ses signes cliniques sont très polymorphes: splénomégalie (95%), hépatomégalie (80%), cytopénies (thrombopénie, anémie, neutropénie)... L'atteinte ostéoarticulaire est une complication majeure qui se voit dans 70 à 100% des cas selon les séries. Les anomali...

Alternaria sp. MG1, an endophytic fungus previously isolated from Merlot grape, produces resveratrol from glucose, showing similar metabolic flux to the phenylpropanoid biosynthesis pathway, currently found solely in plants. In order to identify the resveratrol biosynthesis pathway in this strain at the gene level, de novo transcriptome sequencing was conducted using Illumina paired-end sequenc...

This paper represents linkage network of queues consisting of biserial and parallel servers linked to a common server in series with a flowshop scheduling system consisting of two machines. The significant transportation time of the jobs from one machine to another is also considered. Further, the completion time of jobs/customers (waiting time + service time) in the queue network is the set...