H1 has measured a number of different known particles and compared their production to QCD models and to other reactions such as N-N collisions. ZEUS has also measured the production of K SK 0 S pairs with a view to searching for glueballs. Several resonances are seen which are glueball candidates. The results on the masses and widths are compared to other experiments. At HERA acceleration ring...

IEEE 802.11n could improve the network efficiency of WLAN by aggregating multiple frames into a single transmission. The frame aggregation technique especially benefits multi-hop transmissions that introduce enormous 802.11 medium access control (MAC) layer control overhead. This paper proposes a novel algorithm, namely dynamic aggregation selection and scheduling (DASS) algorithm, that can dyn...

The rendering process reduces the 3D geometry to a set of 2D triangles in the image plane. The projection from 3D is standard. The projected triangles are clipped and sorted so that the final collection of triangles in a pixel do not overlap each other. So at frame f , the image plane holds a collection of pixels Pk, k = 1, . . .M , each of which contains a set of 2D nonoverlapping triangles {T...

The Shunt active power filters are used in power systems for the compensation of harmonic currents generated for non linear loads. A reference current estimation method for control of SAPF using a digital filter based synchronous reference frame theory is presented. To extract the fundamental component of source current, the synchronous reference frame (SRF) theory is suitable because of its ea...

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...

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I discuss QCD sum rules determinations of the form factors governing the decay B → π(ρ)lν. For some of these form factors the computed dependence on the momentum transferred does not agree with the expectation from the nearest pole dominance hypothesis. Relations are observed among the form factors, that seem to be compatible with equations recently derived by B.Stech. The measurement of a numb...