Abstract In order to study the influence of square-cone energy-absorbing structures on mechanical behaviour collision performance leading vehicle, a parameterization method for rapidly changing was proposed. Firstly, finite element simulation model vehicle with structure constructed. Then, platform force, slope force and initial peak force-displacement curve derived from were studied vehicle. F...

Structural properties of AlN buffer layers, grown by Metal Organic Chemical Vapor Deposition (MOCVD) on 4H-SiC substrate with thicknesses 61.34, 116.88, 129.46 and 131.50 nm, are investigated High Resolution X-Ray Diffraction (HR-XRD) technique. Interfacial roughness layer was determined XRR The interface value nm thick sample is as 0.50 nm. Mosaic defects, tilt angle, vertical lateral coherenc...

Buffer overflows have become the most common target for network-based attacks. They are also the primary propagation mechanism used by worms. Although many techniques (such as StackGuard) have been developed to protect servers from being compromised by buffer overflow attacks, these techniques cause the server to crash. In the face of automated, repetitive attacks such as those due to worms, th...

This work introduces S-buffer, an efficient and memory-friendly gpu-accelerated A-buffer architecture for multifragment rendering. Memory is organized into variable contiguous regions for each pixel, thus avoiding limitations set in linked-lists and fixed-array techniques. S-buffer exploits fragment distribution for precise allocation of the needed storage and pixel sparsity (empty pixel ratio)...

Repeaters are widely used to combat the quadratic delay of long on-chip wires. A conventional repeater is a CMOS inverter placed periodically along the long wire. This design has two drawbacks. The wire must have an even number of repeaters to preserve signal polarity. This forces the designer to sometimes use a suboptimal number of repeaters. It is also awkward when a wire branches because rep...

In this paper, many details of database buffer management including goals, roles, organization, and schemes are discussed. There is a focus on the LRU-K scheme and its features.

Aggregating bandwidth from multiple radio access technologies (RATs) provides an opportunity for network providers to enhance network capacity. This is important for serving applications that require more bandwidth than a single RAT can offer. One of the important elements of bandwidth aggregation is the selection of a suitable set of RATs to achieve efficient aggregation. In this paper, we pro...

Buffered crossbar switches are special crossbar switches with each crosspoint equipped with a small exclusive buffer. The crosspoint buffers decouple input ports and output ports, and simplify switch scheduling. In this paper, we propose a scheduling algorithm called Fair and Localized Asynchronous Packet Scheduling (FLAPS) for buffered crossbar switches, to provide tight performance guarantees...

This paper proposes a new MPEG-4 rate control algorithm for single or multiple object video sequences. The algorithm aims to achieve an accurate bit rate with the maximum picture quality while efficiently handling buffer fullness and scene change. In addition to estimating the bit budget of a frame based on its global coding complexity, the algorithm dynamically distributes the target bits for ...