BACKGROUND Exercise training is of benefit for patients with restrictive lung disease. However, it tends to be intolerable for those with severe disease. We examined whether providing ventilatory assistance by using negative pressure ventilators (NPV) during exercise training is feasible for such patients and the effects of training. METHODS 36 patients with restrictive lung disease were pros...

We propose an alternative approach to branch resolution based on the earlier work on decoupled memory architectures. Branch decoupling is a technique to decouple a single instruction stream program into two streams. One stream is solely dedicated to resolving branches as early as possible (both the branch condition and the branch target). The resolved branch targets are consumed by the other co...

This paper discusses an approach to reducing mem ory latency in future systems It focuses on systems where a single chip DRAM processor will not be fea sible even in years e g systems requiring a large memory and or many CPU s In such systems a solu tion needs to be found to DRAM latency and bandwidth as well as to inter chip communication Utilizing the projected advances in chip I O bandwidth ...

It is known that requiring a controlled system to be decoupled may increase costs in terms of some performance measures. However, decoupling may be desirable from an applied perspective. This paper gives an explicit quantiication of the costs of decoupling. In particular, the average quadratic tracking error is used to quantify performance. The analysis exploits the parametrisation of all decou...

This thesis presents a study into a technique for improving performance in outof-order superscalar architectures. It identifies three technological trends limiting superscalar performance; they are the increasing cost of a main memory access, control dependencies and the greater hardware complexity of out-of-order execution. Decoupling is a technique that can provide higher performance through ...

The visual quality of photographs taken under imperfect lightness conditions can be degenerated by multiple factors, e.g., low lightness, imaging noise, color distortion, and so on. Current low-light image enhancement models focus on the improvement only, or simply deal with all degeneration factors as a whole, therefore leading to sub-optimal results. In this article, we propose decouple model...

ABSTRACT: We report on a strategy for achieving negative phase velocity (NPV) in a homogenized composite medium (HCM) conceptualized using the Bruggeman formalism. The constituent material phases of the HCM do not support NPV propagation. The HCM and its constituent phases are isotropic dielectric–magnetic mediums; the real parts of their permittivities/permeabilities are negative–valued wherea...