ahmed ehab m (8 risultati)

Taschenbuch. Condizione: Neu. Unconventional Oxide Glass | Structure, Conductivity, Negative Resistance | Ehab M. Ahmed | Taschenbuch | 192 S. | Englisch | 2013 | LAP LAMBERT Academic Publishing | EAN 9783659366109 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A special sub-set of oxide glasses is called Unconventional Oxide Glass. These oxides do not form glasses alone but can do so in binary or multicomponent mixtures with other oxides such as vanadium oxide, lead oxide, bismuth oxide and some others. The importance of such glasses is found in their interesting properties and application in switching and data storage memories. Therefore, these materials have many useful application in the field of manufacturing of many information technological systems. However, this work aimed to prepare a new unconventional transition metal oxide glass system based on both vanadium and iron oxides with the introduction of different strontium oxide concentrations. After successful preparation, some important questions appeared in mind and they have to be addressed. Such questions are: 1- Are these glasses exhibit semiconducting properties in their ac and dc electrical conductivities, or they stay in the dielectric limits , and What is the origin of the conductivity mechanism 2- Does these glasses exhibit a Negative Resistance phenomenon or not 3- What are the roles and the positions in which the used cations occupy in the glass network 192 pp. Englisch.

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Ahmed Ehab M.Ehab M. Ahmed, PhD: Studied Physics at Faculty of Science, Aswan University. Lecturer of Solid State Physics at Faculty of Science, Damietta University.A special sub-set of oxide glasses is called Unconventional Oxid.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -A special sub-set of oxide glasses is called Unconventional Oxide Glass. These oxides do not form glasses alone but can do so in binary or multicomponent mixtures with other oxides such as vanadium oxide, lead oxide, bismuth oxide and some others. The importance of such glasses is found in their interesting properties and application in switching and data storage memories. Therefore, these materials have many useful application in the field of manufacturing of many information technological systems. However, this work aimed to prepare a new unconventional transition metal oxide glass system based on both vanadium and iron oxides with the introduction of different strontium oxide concentrations. After successful preparation, some important questions appeared in mind and they have to be addressed. Such questions are: 1- Are these glasses exhibit semiconducting properties in their ac and dc electrical conductivities, or they stay in the dielectric limits , and What is the origin of the conductivity mechanism 2- Does these glasses exhibit a Negative Resistance phenomenon or not 3- What are the roles and the positions in which the used cations occupy in the glass network VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 192 pp. Englisch.

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - A special sub-set of oxide glasses is called Unconventional Oxide Glass. These oxides do not form glasses alone but can do so in binary or multicomponent mixtures with other oxides such as vanadium oxide, lead oxide, bismuth oxide and some others. The importance of such glasses is found in their interesting properties and application in switching and data storage memories. Therefore, these materials have many useful application in the field of manufacturing of many information technological systems. However, this work aimed to prepare a new unconventional transition metal oxide glass system based on both vanadium and iron oxides with the introduction of different strontium oxide concentrations. After successful preparation, some important questions appeared in mind and they have to be addressed. Such questions are: 1- Are these glasses exhibit semiconducting properties in their ac and dc electrical conductivities, or they stay in the dielectric limits , and What is the origin of the conductivity mechanism 2- Does these glasses exhibit a Negative Resistance phenomenon or not 3- What are the roles and the positions in which the used cations occupy in the glass network.

Paperback. Condizione: new. Paperback. Date: 2071 Location: South Arab Nations (Egypt, Sudan and the Nuba Sector - Eastern Desert ) The World: women and men and. dragonflies (Yaaseeb) A scary new world under the control of a harsh and unforgiving Queen. She has a hatred of men and everything to do with Y chromosome. There are 3 groups in the population. Women, who she has put at the forefront of university education, prestigious jobs and making them senior, she ensures their dominance in society. The ordinary man who she despises and hates and who she abuses for labour and other low jobs. And then the "Yasseeb" (dragonflies), this is a subset of men built from the smartest, talented, strongest men. For the "Yaaseeb" she has built self-contained colonies offering everything they would ever want, universities, clubs, accommodation. All of which is built up on the labour and toil of the hard working, ignorance and poverty of the ordinary man. " Seif," a dragonfly spent 14 years inside the colony of the royal palace. He finds himself on a highway on the border of Aswan. He does not recall how he came to be at this place, nor where he is, but he knows one fact: He does not want to go back to the colony, and he does not want to be " yasoob, instead he would like to become an ordinary man where there is nothing, but poverty, ignorance and arduous business . Any insurgency or failure to comply with the Queens strict rules have a penalty and no other options existent: the eternal stay in (waterfalls prison) or log on to the announcement undergo room after five years. " Seif" meets a group of men in the Colonial jail who put their minds together to achieve two goals: first, to escape from the hellish prison, and second: the elimination of the Queen' and return life to being normal where there is males and female as equals! Will these men succeed in returning things the to normal and their natural right to work and learn and have fair treatment? This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.