The well known problem among most random access protocols in wireless networks is that the throughput drops rapidly in heavy load. To cope with this problem, one has to control to the load ooered to a network. Unlike the traditional backoo policy in Ethernet where backoo occurs after collision, in this paper we propose various control schemes based on the new idea of resampling, where carrier s...

Autonomous robots in unstructured and dynamically changing retail environments have to master complex perception, knowledge processing, and manipulation tasks. To enable them to act competently, we propose a framework based on three core components: (◦) a knowledge-enabled perception system, capable of combining diverse information sources to cope with occlusions and stacked objects with a vari...

Steel storage racks are widely used in logistics for storing materials and goods. Rack design is carried out by adopting the so-called design-assisted-by-testing procedure. In particular, experimental analyses must be rack producers on key structural components order to adopt approach proposed more traditional carpentry frames. For existing racks, i.e., those in-service decades, it required eva...

Waste material flowing in rivers creates several problems various aspects, especially environmental aspects. One of the waste-capturing mechanisms which is widely applied trash rack. However, studies show that racks have potential to block river flow increases risk flooding. This study proposes a screw conveyor-based waste capturing mechanism with modification blade’s design resembling rack and...

The purpose of this communication is to describe a rack which permits the simultaneous handling of 24 culture vials for purposes of plaque assays of viruses, interferon assays, cloning of cells, and other related procedures in cell culture. In this laboratory, the rack has been found to decrease significantly the time and effort required for the manipulation of moderate to large numbers of cult...

Experimental test are carried out on a semi-heavy duty Motorsazan MT4.244 agricultural engine at various loads in order to evaluate performance and emissions of DI diesel engine using the blends of diesel fuel with 5%, 10%,15%,20% , 30%(by volume) Castor oil and pure diesel fuel separately. The result show that maximum decreasing of PM emission is 73.2% and is observed in B15 at 50%load and the...

of the Dissertation Memory-Based Rack Area Networking

In this paper, a novel and simple search algorithm called distributed weighted fair queuing (DWFQ) algorithm is proposed for the quality-of-service (QoS) in IEEE 802.11e wireless local area networks (WLANs). We first propose that the IEEE 802.11e enhanced distributed coordination function (EDCF) is an efficient algorithm to support the QoS in WLANs, although it can provide more bandwidth to pac...