김성현 교수

The use of industrial robots is widespread in diverse manufacturing fields. Hence, there have been attempts to use robot for machining processes instead of machine tools. However, limited machining accuracy has been a major obstacle hampering the adoption of robotic machining systems. Recently, substantial research has been carried out to address this issue. In this paper, recent progress in robotic machining has been summarized, such as kinematic calibration and compliance error compensation to

BACKGROUND: Complications are important indicators of immediate postoperative outcomes. The Clavien-Dindo classification (CDC) is a widely used index for the classification of surgical complications. More recently, the comprehensive complication index (CCI) has also been introduced for classifying postoperative complications. The aim of this study was to compare the relationship of CCI and CDC with clinical or economic parameters. METHODS: The study prospectively enrolled patients from April 201

Computed tomography or magnetic resonance can demonstrate the characteristic evolutionary pattern of fascioliasis that reflects the unique life cycle of Fasciola hepatica. The role of ultrasound, although limited in the parenchymal phase, was most useful in the ductal phase in that it demonstrated the moving worms themselves.

The anchored conjunctival rotational flap surgery showed similar pterygium recurrence rates and a lower incidence of flap edema, while enabling simple recognition of flap orientation, compared with the conjunctival autograft technique.

Particle size and metal species are important to both soil microbial toxicity and phytotoxicity in the soil ecosystem. The effects of CuO and ZnO nanoparticles (NPs) and microparticles (MPs) on soil microbial toxicity, phytotoxicity, and bioaccumulation in two crops (Cucumis sativus and Zea mays) were estimated in a soil microcosm. In the microcosm system, soil was artificially contaminated with 1,000 mg/kg CuO and ZnO NPs and MPs. After 15 days, we compared the microbial toxicity and phytotoxic

Preoperative plasma CFB can be used to predict the prognosis of resectable pancreatic cancers; it outperforms both CA 19-9 and CEA.

BACKGROUND: Tip plasty using a septal extension graft (SEG) is useful in the Asian population. However, complications such as decreased tip projection, infection, or deviation are noted post-surgery, and additional support using an SEG is often necessary. We aimed to transplant an additional 3D printed polycaprolactone (PCL) graft to the tip plasty using the SEG to reinforce the SEG. METHODS: The study included 43 patients (20 males and 23 females; mean age, 28.7 years; range, 17-58 years) who r

Single-site, single-system Langerhans cell histiocytosis (LCH) of the rib is one of the rarest causes of bone tumor in adults. Herein, we report a case of a healthy 35-year-old male who presented with upper back pain that was attributed to a solitary osteolytic lesion at the posterolateral aspect of his sixth rib. For diagnostic confirmation and treatment, partial resection of the sixth rib was performed and pathologic finding was consistent with LCH. At the final follow-up after 2 years, no loc

BACKGROUND: Lymph node (LN) metastasis is one factor indicating a poor prognosis after radical surgery for intrahepatic cholangiocarcinoma (ICC). Although several guidelines have recommended that LN dissection be strongly considered at the time of ICC surgery, no clear evidence regarding the appropriate number of harvested LNs has been established. Thus, we aimed to identify the minimum number of harvested LNs required for ICC by using a Bayesian Weibull model. METHODS: Data from 142 patients wh

SurgiGuard® is as effective and non-toxic as Surgicel® in achieving hemostasis after porcine abdominal surgery.

The development of sarcopenia, SO, and MetS is related to lifetime occupation, with BC workers being most affected by sarcopenia and WC workers being most affected by SO and MetS.