The editors of this special issue asked Todd LaPorte to reflect on the issues that emerge from the discussions in this special issue and, more in general, from the discussions that have proliferated in the wake of recent crises and disasters. In his contribution, Professor LaPorte contemplates what political leaders can do to prepare for catastrophic surprises. A crucial initiative, he argues, ...

The main task of drilling the formation by the bit is done via scraping, crushing and grinding. Discharging the fluid from the bit nozzles is done with high pressure which assists to break the rocks. Different parameters affect the bit selection and design for each drilling formation, but the most important one is drillability that depends on hardness of the formation. In this paper, the design...

Nowadays, we are witnessing the growth of firms that distribute the production capacity of their products to a wide geographic range to supply the demand of several markets. In this article, the relationships and interactions between cell design and supply chain design are investigated. For this purpose, a novel integrated model is presented for designing dynamic cellular manufacturing systems ...

This paper investigates a novel design of penternary logic gates usingcarbon nanotube field effect transistors (CNTFETs). CNTFET is a suitable candidate forreplacing MOSFET with some useful properties, such as the capability of having thedesired threshold voltage by regulating the diameter of the nanotubes. Multiple-valuedlogic (MVL) such as ternary, quaternary, and penternary is a promising al...

as a result of higher distributed consanguinity in the mediterranean region and the middle east, autosomal-recessive forms of charcot-marie-tooth (arcmt) are more common in these areas. cmt disease caused by mutations in the ganglioside-induced differentiation-associated protein 1 (gdap1) gene is a severe autosomal recessive neuropathy resulting in either demyelinating cmt4a neuropathy or axona...

This paper presents a multi-octave power amplifier based on modified simplified real frequency method. The approximate range of the optimal impedance transistor in wide band Smith chart is obtained by load-pull technique, and coincidence degree value input matching circuit taken as new optimization objective added into algorithm. Then improved algorithm used to design amplifier’s wideband circu...

zola, in his book the experimental novel, introduces the aspects of what is now called the naturalistic novel. later on, zola’s ideas were exported to the english literature and the works of english novelists. george gissing is one of the english authors who have successfully adopted the premises and the key elements of zola’s naturalistic novel in their work. this paper deals with the naturali...

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normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background : during august 2009, novel h1n1 influenza virus began causing illness in isfahan. since rates of hospitalization and mortality due to the disease have varied widely in different countries, we described the clinical, radiologic, and demographic features of h1n1 hospitalized patients in a hospital in isfahan. met...

political novel is one of the kinds of persian literature with special factors, which are different from other contemporary story writing styles.  these types of stories are more accommodated with critical discourse analysis (cda) among other methods of novel analyses compared to other types, because of their specificity and unique quality of and their close relations with society and political...