Micro-stamping process is one of the most cost-effective methods to manufacture metallic bipolar plates (BPPs). This research investigates the forming of titanium thin sheet as a potential candidate for BPPs in proton exchange membrane fuel cell (PEMFC). In this regard, the process was first simulated using finite element (FE) code Abaqus. Afterward, experimental tests were implemented and the ...

In this paper, a cooperative algorithm to improve the orthogonal space-timefrequency block codes (OSTFBC) in frequency selective channels for 2*1, 2*2, 4*1, 4*2 MIMO-OFDM systems, is presented. The algorithm of three node, a source node, a relay node and a destination node is formed, and is implemented in two stages. During the first stage, the destination and the relay antennas receive the sym...

In this paper the authors reported 2 cases of Sinus Histiocy-tosis . The first , an 11 year s o1d gir1 with massive 1ymphadnopathy of 10 CM diameter and 3 months duration otherwise normal. Paraclinic exams wer normal including BM. Diagnosis was confirmed by cervical node biopsy. She was followed clinically and was cured in 8 months. The second case, a 6 years old boy with massive cervical lymph...

In this paper, we propose an energy efficient cluster based communication protocol for wireless sensor network. Our protocol considers both the residual energy of sensor nodes and the distance of each node from the BS when selecting cluster-head. This protocol can successfully prolong the network’s lifetime by 1) reducing the total energy dissipation on the network and 2) evenly distributing en...

We present GS, a distributed algorithm for scalable self-configuration and self-healing in multi-hop wireless sensor networks. The algorithm enables network nodes in a 2D plane to configure themselves into a cellular hexagonal structure where cells have tightly bounded geographic radius and the overlap between neighboring cells is low. The structure is self-healing under various perturbations, ...

We present GS, a distributed, scalable, self-configuration and self-healing algorithm for multi-hop wireless networks. The algorithm enables network nodes in a 2D plane to configure themselves into a cellular hexagonal structure such that cells have tightly bounded geographic radius and low overlap between neighboring cells. The structure is self-healing under various perturbations, such as nod...

Centralized strategies based on Model Predictive Control (MPC) are applied to inventory management problems associated with semiconductor supply chains. Specifically, two benchmark problems of relevance to semiconductor manufacturing are examined. The first is a single product, two node problem consisting of a Fab/Sort and an Assembly/Test facility controlled with a predictive controller using ...