in this paper two nodes to model isotropic and anisotropic media in transmission line matrix method (tlm) are presented. by using these two nodes, the permeability and permittivity of an anisotropic media can be modeled simultaneously. another application of these nodes is in modeling media with permittivity and permeability less than one. in the conventional 2 dimensional tlm, the stubs repres...

designing wireless sensor networks should meet appropriate parameters such as quality of service (qos) defined by different users. the variable physical conditions of the environment, processing and transmission power limitations and limited communication capabilities are the most important obstacles that influence qos parameters such as throughput, delay, reliability and network lifetime. the ...

The changes in major nitrogenous components during the germination of pea seeds have been followed. During the period of rapid axis growth, 3 to 8 days following germination, the nitrogen content of the cotyledons declines rapidly with an accompanying increase of nitrogen in the developing axis. The accumulation of alcohol soluble nitrogen, primarily amino nitrogen, in the cotyledons and axis d...

A method for transformation of B.napus is presented in this study. The protocol is based on infection of cotyledonary petioles of 5-day-old and hypocotyl segments of 14-day-old seedlings with an Agrobacterium tumefaciens strain LBA 4404 carrying a disarmed binary vector pBI121. The T-DNA region of this binary vector contains the neomycin phosphotransferase II (NPTII) and glucuronidase (GUS) gen...

Developmental patterns of glyoxylate cycle and photosynthetic activities have been correlated with electrophoretic profiles of cotyledonary RNA and protein in both light- and dark-grown cucumber seedlings (Cucumis sativus L.) Cytoplasmic rRNA increases 10-fold between days 0 and 5, and the steepest increase coincides with the most rapid rise in activities of the glyoxysomal enzymes, isocitrate ...

An efficient selection system and Agrobacterium mediated transformation for chickpea (Cicer arietinum L.) cotyledonary nodes were investigated. Effect of selective agents and antibiotics on multiple shoot and root induction of cotyledonary nodes and effects of mechanical injury and vacuum infiltration on transformation efficiency were evaluated. Selective agents and antibiotics were applied to ...

Soybean plants are promising bioreactors for the expression of biochemically complex proteins that cannot be produced in a safe and/or economically viable way in microorganisms, eukaryotic culture cells or secreted by transgenic animal glands. Soybeans present many desirable agronomic characteristics for high scale protein production, such as high productivity, short reproductive cycle, photope...

ewe abortion and neonatal mortality are serious problems to sheep farmer. the objective of this paper was to report isolation of erysipelothrix rhusiopathiae from aborted fetuses in a flock in tehran, iran. abortion occurred in 10% of ewes in the flock. the fetuses were well developed and pinpoint, necrotic-like lesions were recorded on the placental cotyledons, whilst the inter -cotyledonary a...