In ATM-based communication networks, the transmission links that interconnect the network nodes do not necessarily operate at the same transmission speeds. If the speed of the incoming link in a node exceeds the speed of the outgoing link, a rate adaptation buffer must be provided in order to avoid frequent cell loss. This paper presents an analytical queueing analysis of a rate adaptation buff...

Bit rate adaptation is one of the basic problems in universal multimedia access. Therefore, in many cases, there exists a strong requirement for a very fast transcoding implementation. Usually, open-loop transcoding architecture is the desired solution with the lowest computational complexity. However, severe drift error makes it infeasible to most applications. In this paper, we propose a drif...

The paper is related to the thread manufacturing process. This work clearly identified the different problems occurring during manufacturing. In the last process (winding), DMAIC tool is applied. The reason for choosing this work is to provide a better analysis of different processes in thread manufacturing. This textile firm has large departments where the thread produced from the waste clothe...

Block transform coding is widely used in image and video compression methods. Due to quantization error, there are blocking artifacts in the decoded image. This paper presents a pre-processing method, called pre-distortion, to reduce both the bitrate and blocking artifacts. The proposed algorithm is an iterative algorithm which reduces the blocking artifacts of the decoded image by introducing ...

The specific absorption rate is used as one of the main safety parameters in magnetic resonance imaging. The performance of imaging sequences is frequently hampered by the limitations imposed on the specific absorption rate that increase in severity at higher field strengths. The most well-known approach to reducing the specific absorption rate is presumably the variable rate selective excitati...

BACKGROUND Odontogenic cysts are defined as those cysts that arise from odontogenic epithelium and occur in the tooth-bearing regions of the jaws. Cystectomy, marsupialization or decompression of odontogenic cyst are treatment approach to this pathology. The aim of this study was to evaluate the effectiveness of the decompression as the primary treatment of the cystic lesions of the jaws and th...

Epidemiological studies have suggested that life expectancy is inversely related to resting heart rate and that the risks of development of heart failure and sudden cardiac death strongly increase with higher resting heart rates [1]. After myocardial infarction, the reduction in mortality with β-blocker treatment was correlated with the extent of heart rate reduction, and in patients with heart...

In previous techniques of bit rate reduction transcoding, reusing the mode of the input MB is widely adopted. However, directly re-using the mode of input MB will cause additional losses for H.264 bit-rate scaling. Variable-size block-matching based motion estimation makes H.264 much more efficient than other coding standards while increasing its complexity. As the target bit rate changes, the ...

BACKGROUND Inguinal hernia is one of the most common pathologies in the surgical setting. The introduction of the Lichtenstein technique in 1989 (tension-free hernioplasty with polypropylene mesh) represented one of the most significant breakthroughs in the treatment of this condition since Bassini's hernia repair. The aim of this study was to know the most significant predictive variables of c...

In order to cope with the increasing number of different display devices and the heterogeneity of transmission networks, fast and elegant adaptation of video content is required. Transcoding can be used for reduction of the bitrate, without fully decoding and recoding the bitstream. A significant reduction in computational complexity can be achieved by reusing information from the incoming bits...