Denial of Service (DoS) is a prevalent threat in today’s networks because DoS attacks are easy to launch, while defending a network resource against them is disproportionately difficult. Despite the extensive research in recent years, DoS attacks continue to harm, as the attackers adapt to the newer protection mechanisms. For this reason, we start our survey with a historical timeline of DoS in...

An MS-DOS personal computer program for the analysis and design of DC/DC converters is presented. The program, named SPAC (Symbolic Program for Analysis of DC/DC Converters), is based on symbolic analysis techniques and is able to calculate automatically, starting from a graphical schematic entry, the circuit s-domain network functions in a completely symbolic form. By means of suitable algorit...

in present work, we have calculated the electronic properties including density of states (dos) and electron density for gan, inn and in wurtzite phase for x=0.5. the study is based on density functional theory (dft) with full potential linearized augmented plane wave method (fp-lapw) by generalized gradient approximation (gga-pbesol) for calculating electronic properties. in this report we con...

first-principle calculations were carried out to investigate the adsorption of co over cun nanoclusters. the structural, spectroscopic and electronic properties like optimized geometries, homo (highest occupied molecular orbital) and lumo (lowest unoccupied molecular orbital) energy levels, binding energy, adsorption energy, vibrational frequency and density of states (doss) of the pure cun nan...

the interaction of a nitrosyl hydride (hno) molecule with b12n12 nanocage was explored by means of density functional calculations. it was found that hno prefers to be adsorbing on a boron atom of the cage with adsorption energy of -0.65 ev. this adsorption process significantly shifts the homo-lumo gap (eg) of the cage to lower energies, thereby reducing eg of the cage from 6.84 to 2.45 ev. ti...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv CHAPTER 1. DENIAL OF SERVICE ATTACKS . . . . . . . . . . . . . . . 1 1.1 The Increasing Threat of DoS Attacks . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Roots of the DoS Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Classification of DoS Attacks . . . . . . . . . . . . . . . . . ....

In cloud computing, network Denial of Service (DoS) attacks are well studied and defenses have been implemented, but severe DoS attacks on a victim’s working memory by a single hostile VM are not well understood. Memory DoS attacks are Denial of Service (or Degradation of Service) attacks caused by contention for hardware memory resources on a cloud server. Despite the strong memory isolation t...

Phthalate plasticizers such as di(2-ethylhexyl) phthalate (DEHP) are being phased out of many consumer products because of their endocrine disrupting properties and their ubiquitous presence in the environment. The concerns raised from the use of phthalates have prompted consumers, government, and industry to find alternative plasticizers that are safe, biodegradable, and have the versatility f...

Denial of Service (DoS) attacks is a well-known problem with victims even among prestigious commercial sites. Such attacks in traditional networking are difficult to recognize and to handle. An active infrastructure that can dynamically respond to event-triggered requests can deal better with recognition and handling of DoS attacks. We present here a DoS attack response system architecture and ...

The positive gate-bias temperature stress (PBTS)-induced instability in top gate self-aligned coplanar InGaZnO thin-film transistors is experimentally decomposed into contributions of distinct mechanisms by combining the stress-time-divided measurements and the extraction of subgap density-of-states (DOS) from the optical response of C-V characteristics. It is found that a total threshold volta...