Azimuthal correlation between the (p l , p X b) and (p l , P t) planes in the semileptonic rest frame decay of a polarized top quark: An O(α s) effect Abstract The azimuthal correlation between the planes formed by the vectors (p l , p X b) and (p l , P t) in the semileptonic rest frame decay of a polarized top quark t(↑) → X b + l + + ν l belongs to a class of polarization observables involvin...

Infilled walls are the major non-structural elements which have significant effects on the seismic behavior of structures. The shape and strength of the brick elements are the main parameters affect the strength of the walls. In addition existence of openings may have a reduction effect. To increase the strength of the wall and to improve its behavior, the borders of the openings may be strengt...

an experimental study is conducted on three ½ scales, single-story, single-bay, frame specimens. the first specimen was a reinforced concrete frame with solid-brick infill. the second specimen was a reinforced concrete frame with hollow clay perforated-brick infill. the last specimen was a reinforced concrete frame without any infill. these three specimens were tested by pseudostatic method. di...

MAC level efficiency constraints of the RFID Reader-Tag communication require proper frame size selection in order to achieve maximum throughput. To set optimal frame size, one needs to estimate the number of tags. Deriving optimal frame size results in reducing time for identification of large RFID tag populations, and thus increases throughput of RFID system. In accordance with the standard D...

‎for any archimedean$f$-ring $a$ with unit in whichbreak$awedge‎‎(1-a)leq 0$ for all $ain a$‎, ‎the following are shown to be‎‎equivalent‎:‎‎1‎. ‎$a$ is isomorphic to the $l$-ring ${mathfrak z}l$ of all‎‎integer-valued continuous functions on some frame $l$‎. 2‎. ‎$a$ is a homomorphic image of the $l$-ring $c_{bbb z}(x)$‎‎of all integer-valued continuous functions‎, ‎in the usual sense‎,‎on som...

We argue that the search for dark vector boson through $e^+e^-\to Z_d\gamma$ can determine Lorentz structure of $Z_dl^+l^-$ couplings with detection leptonic decays $Z_d\to l^+l^-$. assume a general framework interacts ordinary fermions and axial-vector couplings. As consequence Ward-Takahashi identity, $Z_d$ is transversely polarized in limit $m_{Z_d}\ll \sqrt{s}$. On other hand, fraction long...

In this study we discuss critical issues in modelling the structure and function of lymph nodes (LNs), with emphasis on how LN physiology is related to its multi-scale structural organization. In addition to macroscopic domains such as B-cell follicles and the T cell zone, there are vascular networks which play a key role in the delivery of information to the inner parts of the LN, i.e., the co...

In the study of Weyl-Heisenberg frames the assumption of having a finite frame upper bound appears recurrently. In this note it is shown that it actually depends critically on the timefrequency lattice used. Indeed, for any irrational > 0 we can construct a smooth g 2 L2(R) such that for any two rationals a > 0 and b > 0 the collection (gna;mb)n;m2Zof time-frequency translates of g has a finite...

Previous work in the animation of plant development and expansion has centered on the botom-up approach, whereby models are specified in terms of developmental ruls. These models are inherently difficult to use for goal oriented modeling as the final structure and development of these models are emergent properties. Top-down modeling has previously been introduced to remedy this problem by allo...