In the context of multimedia and hypermedia systems, the aspects of image quality are gaining increasingly in importance. Two tasks have to be fulfilled. First, a suitable quality level of a visual presentation for a specific task in the context of compression and bandwidth limitation has to be achieved. Second, an optimized design of multimedia applications for complete control of the quality ...

OBJECTIVES The aim of this study was to evaluate whether computed tomography (CT) attenuation, as a measure of fat quality, is associated with cardiometabolic risk factors above and beyond fat quantity. BACKGROUND Visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) are pathogenic fat depots associated with cardiometabolic risk. Adipose tissue attenuation in CT images is variab...

BACKGROUND/INTRODUCTION Aidi injection plus radiotherapy is widely used for lung cancer in China. Can Aidi injection alleviate the toxicity and improve the clinical efficacy of radiotherapy in lung cancer? Has Aidi injection the attenuation and synergistic efficacy to radiotherapy? There is lack of strong evidence to prove it. OBJECTIVES To reveal its real attenuation and synergistic efficacy...

In this paper, the H∞ robust control problem for a class of uncertain neutral system with time-varying delays is considered. Based on Lyapunov-Krasovskii functional theory and Leibniz-Newton formula, some criteria for theH∞ robust control with disturbance attenuation are derived. Delay-dependent and delay-independent criteria are proposed to guarantee the stabilization and disturbance attenuati...

Cells possess ER quality control systems to adapt to ER stress and maintain their function. ER-stress-induced pre-emptive quality control (ER pQC) selectively degrades ER proteins via translocational attenuation during ER stress. However, the molecular mechanism underlying this process remains unclear. Here, we find that most newly synthesized endogenous transthyretin proteins are rerouted to t...

Echo cancellation is one of the most challenging tasks in the design of IP based telephone networks. The degradation of conversational speech quality caused by impairments introduced by echo cancellers can be considerably reduced when using an echo delay controlled approach: The non-linear processor provides a sufficient, but limited additional attenuation based on the talker echo tolerance cur...

In the context of multimedia and hypermedia systems, the aspects of image quality measurement and guarantee are gaining increasingly in importance. To achieve this goal, two tasks have to be fulfilled: First, the definition and implementation of methods for complete media quality control is necessary. Secondly, suitable quality levels for visual presentations in the context of task specific req...

This paper considers the modeling and compensator design for Self-ServoWriting (SSW) process in disk drives. An Iterative Learning Control (ILC) based scheme is established to deal with radial error propagation and improve the quality of written tracks. In the proposed scheme, a feedback controller for track following is first designed to achieve good disturbance attenuation. Then, an ILC struc...