Password Guessing Attack 128 IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING‚ VOL. 9‚ NO. 1‚ JANUARY/FEBRUARY 2012 Revisiting Defenses against Large-Scale Online Password Guessing Attacks Mansour Alsaleh‚ Mohammad Mannan‚ and P.C. van Oorschot‚ Member‚ IEEE Abstract—Brute force and dictionary attacks on Premium11810 Words48 Pages Password Strength A password is a secret word or string of characters that is used for user authentication to prove identity‚ or for access approval to gain access
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Network Security at OSI Layers Muhammad Muzammil Syed Zeeshan Nasir Department of computer science FUUAST‚ Islamabad 1-OSI Model: In 1983‚ the International Organization for Standardization (ISO) and the International Telegraph and Telephone Consultative Committee (CCITT) merged documents and developed the OSI model‚ which is based on a specific hierarchy where each layer builds on the output of each adjacent layer. The OSI model is a protocol stack where the lower layers deal primarily
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DECAY AND DRTERIORATION OF BUILDINGS CAUSES OF OCCURANCE OF CRACKS The important causes responsible for occurrence of cracks in buildings‚ are as under: 1) Cracks due to moisture changes. 2) Cracks due to temperature variation. 3) Cracks due to elastic deformation and creep. 4) Cracks due to effect of chemical reaction. 5) Cracks due to movements of ground. 6) Cracks due to vegetation. The various causes of formation of cracks and measures adopted to prevent them are described
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CCIP-029 CI/Sfb UDC A cement and concrete industry publication 624.012.4.001.63 Properties of Concrete for use in Eurocode 2 Properties of Concrete for use in Eurocode 2 Properties of Concrete for use in Eurocode 2 How to optimise the engineering properties of concrete in design to Eurocode 2 Derek Chisholm is project manager for technical publications at The Concrete Centre and has a background in concrete materials technology. John Gibbs is technical advisor for the
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LEE 1 Silent Trauma: Representing Indian Partition in Subaltern Studies‚ Bapsi Sidhwa’s Cracking India I. Subaltern Studies: Silence of History of Partition and Subaltern In 1947‚ India gained its independence following 350 years of British colonization. At the same time‚ due to the serious communal conflicts that had long existed among the three main communities in India—Hindus‚ Muslims‚ and Sikhs‚ the Independence brought the Partition of India to create two newly independent
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(SBS) bitumens have been studied. Rubber-modified bitumens show improved viscoelastic characteristics and‚ therefore‚ higher viscosity than unmodified binders. Consequently‚ enhanced resistance to permanent deformation or rutting and low-temperature cracking should be expected in ground tire rubber-modified bitumens. In addition‚ rubber-modified bitumen (9 wt.%) shows very similar linear viscoelastic properties to SBS-modified bitumen having 3 wt.% SBS at −10 ◦ C‚ and 7 wt.% SBS at 75 ◦ C. © 2002 Elsevier
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Developing Fuels * All gases take up the same volume under the same conditions. AT room temperature and room pressure this volume is 24 dm3. * Number of moles= volume in dm3 24 * Balanced equations can also be used to work out gas volumes. In the equations: 2Na + 2H2O 2NaOH + H2‚ where 15g of sodium is reacted‚ you can work out the volume of gas from working out the number of moles in 15g Na = 0.65 mol. Then you see that 2 mol of Na 1mol of H2‚ Thus 0.65 mol Na 0.325 mol H2. 0.325
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plate to dive under the other or the edges of both plates crumple. 3. Transform Boundary- Plates slide past one another. [pic] Folds and Faults When two plates meet each other‚ they can cause a folding or cracking of the rock. The transformation of the crust by folding or cracking occurs very slowly‚ often only a few centimeters or inches a year. The rocks‚ which are under great pressure‚ become more flexible and bend or fold‚ create changes in the crust. [pic] Earthquakes As the plates
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Introduction Brasses are copper zinc alloys. It is a substitutional alloy. Brass has higher malleability than copper or zinc. In general‚ they have good strength and corrosion resistance‚ although their structure and properties are a function of zinc content. The relatively low melting point of brass (900 to 940°C‚ depending on composition) and its flow characteristics make it a relatively easy material to cast. By varying the proportions of copper and zinc‚ the properties of the brass can
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Computer fraud is the use of information technology to commit fraud. In the United States‚ computer fraud is specifically proscribed by the Computer Fraud and Abuse Act‚ which provides for jail time and fines. 1. Unauthorized access at North Bay Abdulswamad Nino Macapayad‚ a former accounts payable clerk for North Bay Health Care Group‚ admitted to using her computer to access North Bay’s accounting software without authorization‚ and in turn issued various checks payable to herself and others.
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