LEACH (Low Energy Adapt Hierarchy) routing protocol is the convent communication protocol which is widely u Sensor Networks. However, in LEAC consume their energy quickly and the effic deceases because the nodes with low energ from base station become the cluster h analyzing the energy model and con important factors: The energy of each node times of nodes that are chosen to be the clu the dist...

T h e concept and real-time implementa t ion of a n experimental home-use digital H D T V recorder i s presented. An advanced motion-compensated DCT bit-rate reduct ion syst e m i s used to realize high-quality images at 50 Mbi t / s only, thereby enabling small recording m e chanics f o r portable applications and featuring a new h igh-e f ic iency channel code wi th embedded tracking in forma...

T he debate on whether healthcare professionals should be tested for the human immunodef ic iency virus J (HIV) has fired up recently, especially since the case of the Florida dentist who infected five patients. Until then most patients and healthcare professionals perceived the risk of patient infection as theoretical at best. Hut repeated questions have arisen recently about the mandatory tes...

A new method to achieve period: c reversal a of magnetization, necessaryto attain high mode conversion effIc.'encles In magneto-optic waveguides,is described. It la accomplished by .neans of a periodic permalloystructure overlaying the optical procuration path. With proper biasfields, we have observed an optimum Do conversion efficiency of (80 ±2)%at 1.15 pm in a Gd ,.Ga...

The au tonomic nervous sys tem i s v i ta l for homeostasis and its potency is gradually reduced wi th increas ing age (1 ) . Because ANS faci l i ta tes adaptat ion to physiological s t ress , au tonomic insuf f ic iency in e lder ly may not manifest itself under normal resting condi t ions , ye t may occur in response to changes in homeostasis (2). In old age though both sympathetic and paras...

The feasibility of generating high quality functional test vectors f o r sequential circuits using the Growth (G) and Disappearance ( 0 ) fault model has been demonstrated earlier. In this paper we provide a theoretical validation of the G and D fault model b y proving the ability of this model t o guarantee complete stuck fault coverage an combinational and sequential circuits synthesized empl...

The watershed transform is a very powerful segmentation tool which comes directly f rom the idea of watershed line in geohydrology. It has proved its e f ic iency in many computer vision application $fields. Th i s paper presents a new implementation of the watershed which is optimal according to computation, t ime. The flooding algorithm is reminded. Then , a massively parallel cellular automa...

To al low eff icient parallel processing of Prolog programs on distributed multiprocessors, a non-shared variable binding approach is required such that binding environments can be independently distributed among processors. This paper presents a binding scheme, which realises the independence of a clause's binding environment by eagerly instantiating variables across clause arguments. The appl...

Given a sequence of tasks to be performed serially, a parallel algorithm is proposed to accelerate the execution of the tasks on an asynchronous multiprocessor 1~y taking advantage of fluctuations in the execution times. A parallel program requiring no critical section is given to implement the algorithm and its correctness is proved . A spacewise more effic ient implementation is also given bu...

A new approach of reliable image and video transmission over noisy channel is proposed. The proposed subband modulation scheme combines source coding and channel modulation scheme t o achieve high compression ef ic iency and preferable quality. Further performance gain is obtained by multiresolution modulat ion and bits re-mapping scheme that assign e f i c i en t mapping f rom source codeword ...