Jongman Kim

The increased deployment of System-on-Chip designs has drawn attention to the limitations of on-chip interconnects. As a potential solution to these limitations, Networks-on -Chip (NoC) have been proposed. The NoC routing algorithm significantly influences the performance and energy consumption of the chip. We propose a router architecture which utilizes adaptive routing while maintaining low latency. The two-stage pipelined architecture uses look ahead routing, speculative allocation, and optim

Much like multi-storey buildings in densely packed metropolises, three-dimensional (3D) chip structures are envisioned as a viable solution to skyrocketing transistor densities and burgeoning die sizes in multi-core architectures. Partitioning a larger die into smaller segments and then stacking them in a 3D fashion can significantly reduce latency and energy consumption. Such benefits emanate from the notion that inter-wafer distances are negligible compared to intra-wafer distances. This attri

Packet-based on-chip networks are increasingly being adopted in complex System-on-Chip (SoC) designs supporting numerous homogeneous and heterogeneous functional blocks. These Network-on-Chip (NoC) architectures are required to not only provide ultra-low latency, but also occupy a small footprint and consume as little energy as possible. Further, reliability is rapidly becoming a major challenge in deep sub-micron technologies due to the increased prominence of permanent faults resulting from ac

Network-on-Chip (NoC) architectures employing packet-based communication are being increasingly adopted in System-on-Chip (SoC) designs. In addition to providing high performance, the fault tolerance and reliability of these networks is becoming a critical issue due to several artifacts of deep sub-micron technologies. Consequently, it is important for a designer to have access to fast methods for evaluating the performance, reliability, and energy-efficiency of an on-chip network. Towards this

BACKGROUND/AIMS: To analyze the incidence and risk factors of outcomes after liver transplantation (LT) in the Korean population. METHODS: This study analyzed data from the liver cohort of Korean Organ Transplantation Registry (KOTRY) who had LT between May 2014 and December 2017. Study measures included the incidence of post-LT outcomes in recipients of living donor LT (LDLT) and deceased donor LT (DDLT). Cox multivariate proportional hazards model was used to determine the potential risk facto

Much like multi-storey buildings in densely packed metropolises, three-dimensional (3D) chip structures are envisioned as a viable solution to skyrocketing transistor densities and burgeoning die sizes in multi-core architectures. Partitioning a larger die into smaller segments and then stacking them in a 3D fashion can significantly reduce latency and energy consumption. Such benefits emanate from the notion that inter-wafer distances are negligible compared to intra-wafer distances. This attri

BACKGROUND: Hepatectomy is the standard treatment for HCC. However, large HCC poses a difficult challenge because of the technical complexity of surgical resection and the fear of postoperative hepatic decompensation. We analyzed the outcome and prognostic factors in patients with large hepatocellular carcinoma (HCC ≥10 cm) after surgery. METHODS: We retrospectively investigated the medical records of 91 patients who had undergone hepatectomy between January 2006 and June 2010. A survival analys

Packet-based on-chip networks are increasingly being adopted in complex system-on-chip (SoC) designs supporting numerous homogeneous and heterogeneous functional blocks. These network-on-chip (NoC) architectures are required to not only provide ultra-low latency, but also occupy a small footprint and consume as little energy as possible. Further, reliability is rapidly becoming a major challenge in deep sub-micron technologies due to the increased prominence of permanent faults resulting from ac

OBJECTIVE: To identify optimal surgical methods and the risk factors for long-term survival in patients with hepatocellular carcinoma accompanied by macroscopic bile duct tumor thrombus (BDTT). SUMMARY BACKGROUND DATA: Prognoses of patients with hepatocellular carcinoma accompanied by BDTT have been known to be poor. There have been significant controversies regarding optimal surgical approaches and risk factors because of the low incidence and small number of cases in previous reports. METHODS:

Massive intraoperative bleeding during liver transplantation often requires large amounts of blood products. The goal of this study was to investigate long-term outcomes of living donor liver transplantation (LDLT) recipients with hepatocellular carcinoma (HCC) who underwent intraoperative use of intraoperative blood salvage (IBS) and leukocyte depletion filter (LDF). In this study, we included 230 LDLT recipients with HCC from two transplantation centers, between February 2002 and December 2007

Cytomegalovirus (CMV) infections contracted after liver transplantation put patients at an increased risk of morbidity and mortality. We analyzed the effects of CMV infection by time of onset, mortality, and graft failure risk factors in liver recipients who were CMV donor-positive/recipient-positive (D+/R+). We reviewed 618 medical records for consecutive adult liver transplant cases. CMV pp65 antigenemia assays to determine patient CMV status were administered monthly. The incidences of CMV in

Pediatric liver transplantation is the standard of care for treatment of liver failure in children. The aim of this study was to identify the characteristics of pediatric liver transplantation in centers located in Korea and determine factors that influence outcomes. This retrospective study was performed using data from between 1988 and 2010 and included all recipients 18 yr old and younger who underwent pediatric liver transplantation in Korea during that period. Our data sources were hospital