Seon Wook Kim

Recent proposals for multithreaded architectures allow threads with unknown dependences to execute speculatively in parallel. These architectures use hardware speculative storage to buffer uncertain data, track data dependences and roll back incorrect executions. Because all memory references access the speculative storage, current proposals implement this storage using small memory structures for fast access. The limited capacity of the speculative storage causes considerable performance loss d

BACKGROUND: Epidrum® is a recently developed, air operated, loss of resistance (LOR) device for identifying the epidural space. We investigated the usefulness of Epidrum® by comparing it with the conventional LOR technique for identifying the epidural space. METHODS: One hundred eight American Society of Anesthesiologists (ASA) physical status I or II patients between the ages of 17 and 68 years old and who were scheduled for elective surgery under combined spinal-epidural anesthesia were enroll

Recent proposals for multithreaded architectures employ speculative execution to allow threads with unknown dependences to execute speculatively in parallel. The architectures use hardware speculative storage to buffer speculative data, track data dependences and correct incorrect executions through roll-backs. Because all memory references access the speculative storage, current proposals implement speculative storage using small memory structures to achieve fast access. The limited capacity of

The Indian meal moth, Plodia interpunctella, causes massive damage to stored grains and processed foods. Heat treatment has been widely used to control insect pests infesting stored grains. However, heat treatment may result in unsatisfactory control owing to heat tolerance of target insects. This study quantified the heat tolerance and analyzed its induction in P. interpunctella. Susceptibility of P. interpunctella to different high temperatures was assessed in all developmental stages. Heat tr

We propose an improved generalized sidelobe canceller (GSC) utilizing a phase-error filter (PEF) for multi-channel signal enhancement. The PEF is first incorporated for improving the fixed beamformer (BF) of the GSC. Furthermore, the weight update of the GSC is formulated using the PEF spectral gain. The experimental results show that the proposed method provides better perceptual evaluation and intelligibility scores under multiple noise conditions than conventional BFs, including the GSC and P

In the past, developers of parallel science and engineering applications have been reluctant to embrace objectoriented languages due to the high abstraction penalties they incur at runtime. However, recent advances in design techniques and compiler technology have allowed C++ to emerge as a practical choice for these applications. Due to the lag in acceptance of these languages for parallel computing, there has also been a lag in commercial tool support for this application domain. This paper pr