A membrane-associated lipoxygenase from breaker-stage fruit of tomato (Lycopersicon esculentum Mill.) was purified and partially sequenced. Using degenerate oligonucleotides corresponding to portions of this sequence, a cDNA was amplified by PCR and used to screen a breaker fruit cDNA library. Two clones, tomloxA and tomloxB, were isolated and one of these (tomloxA) corresponded to the isolated...

Ultra Wide Band Radio (UWB) is also known as the impulse radio (IR). It will become one of the most competitive technologies, especially in the high speed data transmission, high precision positioning, tracking and other fields; it has broad application prospects in the future. The main function of the highvoltage circuit breaker in the power grid is breaking, closing and carrying run normal cu...

Abstract Foamed materials play an important role in a lightweight design. Foam injection molding (FIM) is advanced and convenient way to fabricate structural materials. Recently, new foam machine developed, which only needs ultra‐low gas pressure microcellular foam. As universal plastic, polypropylene (PP) widely used due its good mechanical properties. But after foaming, the toughness of PP te...

Flexible polyurethane foam is widely used in numerous applications such as seats and mattresses, due to its low stiffness and its ability to absorb deformation energy. The main objective of this paper is to model the quasi-static mechanical behavior of three types of polyurethane foam in large deformation and to compare these three foams with three proposed models. The uniaxial compression/ dec...

Many natural structures use a foam core and solid outer shell to achieve high strength and stiffness with relatively small amounts of mass. Biological foams, however, must also resist crack growth. The process of crack propagation within the struts of a foam is not well understood and is complicated by the foam microstructure. We demonstrate that in cancellous bone, the foam-like component of w...

Cellular structures (in general) and auxetic topologies particular) have excellent energy-dissipation characteristics can be used as lightweight impact-energy absorbers. This paper aims to experimentally computationally examine the behaviour of novel re-entrant graded aluminium panels filled with polyurethane foam in an pattern. The performance is compared 3 non-graded, 1 2 foam-filled panels. ...

in this study, lactic acid production by repeated batch fermentation using cell entrapped methods was compared. barium alginate beads, agar gel and polyurethane foam cubes were employed as carriers to immobilize lactobacillus casei subsp. casei for the purpose of l (+)-lactic acid production. increasing concentrations of lactic acid during fermentation were better tolerated by barium alginate e...

We study Maker/Breaker games on the edges of the complete graph, as introduced by Chvátal and Erdős. We show that in the (m : b) clique game played on KN , the complete graph on N vertices, Maker can achieve a Kq for q = ( m log 2 (b+1) − o(1) ) · logN , which partially solves an open problem by Beck. Moreover, we show that in the (1:1) clique game played on KN for a sufficiently large N , Make...