Communication protocols issues are one of the effective factors in communicated networks performance. One of challenging problem in CMT-SCTP which sends data by multipath concurrently is Receive Buffer Blocking. This problem has important role in data transmission speed in computer networks. In this paper, we propose a control method based on fuzzy logic so that can solve Receive Buffer Blockin...

The capabilities of seven dynamic buffer overflow detection tools (Chaperon, Valgrind, CCured, CRED, Insure++, ProPolice and TinyCC) are evaluated in this paper. These tools employ different approaches to runtime buffer overflow detection and range from commercial products to opensource gcc-enhancements. A comprehensive testsuite was developed consisting of specifically-designed test cases and ...

VDII ~ I A new CMOS buffer is introduced. A compensation circuit is used to cancel the output voltage offset resulting from the body effect. The voltage offset cancellation is achieved over all the input range hence resulting in a highly linear voltage transfer gain, which is independent of process variation. Class AB output stage is used in order to minimize the power consumption and increase ...

one of the problems encountered in ce separations of basic compounds is the adsorption of analytes onto the negatively charged capillary wall which could lead to poor repeatability of migration time and peak area. additionally, separation of enantiomers of chiral of basic drugs is commonly carried out in low ph buffer which contributes to strong ionic interaction of the cationic drug ions with ...

Absfract-We a d h the pmblem of designing optimal bufYer management policies in shared memory switches when packets already accepted in the switcb can be dropped (pushed*ut). Our goal is to maximize the overall throughput, or equivalently to d n h h e the overall loss probability in the system. For a system with two output ports, we prove that the optimal policy is of push-out with threshold ty...

Intuitive navigation is extremely important for the exploration of virtual environments. The best navigation is available in computer games, where it is mandatory that the player can control the movements of his avatar quickly and with a steep learning curve. Such intuitive navigation requires collision detection. In this paper we present a system that performs a very fast and robust collision ...

Endothelial cells (ECs) are the metabolic gatekeepers of the body. All tissues require nutrients for growth and function, and those nutrients must pass the endothelial layer. In some tissues like the liver, the endothelium is discontinuous and marked by “fenestrae” (from the Latin for “window”), dedicated transcellular openings that allow free movement of nutrients. But in most tissues such as ...

Buffer overflow attacks are among the oldest and most common attacks used to gain privileged access to a computer system. In fact, statistics from Carnegie Mellon’s Computer Emergency Response Team reveal that buffer overflow vulnerabilities accounted for about 50% of all reported vulnerabilities in 2000 [2]. It is surprising that after almost 20 years of buffer overflow exploits, they are stil...

In this paper, the novel “tapered-Vth” approach to design energy-efficient CMOS buffers is introduced. In this approach, the substantial energy consumption due to leakage is reduced by tapering the threshold voltage throughout the buffer stages, other than tapering the transistor size. More specifically, the threshold voltage is progressively reduced when going from the last to the first stage....

In this report we deal with the time to buffer overflow in a finite-buffer queue with MMPP (Markov-modulated Poisson process) arrivals. The results include a closed-form formula for the transform of the distribution of the time to buffer overflow. The main benefit of this formula is that, using properties of the transform, we can easily compute the average overflow time and all the moments (var...