In this paper, we propose a TDMA slot assignment protocol to improve the channel utilization, which controls the excessive increase of unassigned slots by changing the frame length dynamically. Our proposed protocol assigns one of the unassigned slots to a node which joins the network. If there is no unassigned slots available, our proposed protocol generates unassigned slots by depriving one o...

An analysis of laminar natural convection in inclined slots subjected to patterned heating has been performed. The imposed takes a simple form characterized by single Fourier mode combined with uniform heating. It is shown that periodic applied at the lower plate produces no net flow when slot either horizontal or vertical, but upward generated tilted. Periodic upper downward situation. additio...

In this paper a method of ordering slots of verb schemata related by diathesis alternations is presented. Such schemata are grouped together and represent a single meaning of a verb. The schema dominating in a group is found and its slots are numbered w.r.t. their obliqueness hierarchy. These numbers are propagated to other schemata accordingly to alternations linking slots of schemata related ...

Recently, single linear induction motor(SLIM), which comes from rotary induction motor(RIM), has been widely applied in transportation systems, especially in intermediate speed arrange, because of its merits, such as ability to exert thrust on the secondary without mechanical contacts, high acceleration or deceleration, less wear of the wheels, smaller turn circle radius and more flexible road ...

The appearance of 'filler syllables' (called here PAEs, for Prefixed Additional Elements) in the late single-word period is analysed in relation to the emergence of grammatical morphemes, by confronting data from the longitudinal study of one child acquiring French, video-recorded between 1;3.2 and 2;2.6, with four hypotheses making different claims about the kind of language knowledge underlyi...

A Dynamic MAC protocol is developed for WCDMA wireless multimedia networks. It uses multiple slots per frame allowing multiple users to transmit simultaneously using their own CDMA codes. The proposed MAC protocol is based on contention .If there is low contention users can access any slots and if there is high level contention the owners of the slots have priority to access slots .If the owner...

A dual-band slotted substrate-integrated waveguide four-element array antenna for the 5G communication system is presented in this manuscript. Two longitudinal slots are responsible generating frequency bands of 28 and 38 GHz. The proposed designed on substrate duroid 5880/Rogers having a loss tangent dielectric constant 0.003 2.2, respectively. developed single-element design at GHz provides 6...