김수현 교수

As the novel coronavirus (COVID-19) pandemic continues, frontline nurses caring for COVID-19 patients are experiencing severe fatigue and mental stress. This study explored nurses' adaptation process in caring for COVID-19 patients and examined how nurses interact with the phenomenon using a grounded theory approach. The study aimed to develop a substantive theory and provide basic data with which to develop intervention programs that can support nurses caring for COVID-19 patients. Data were co

A simple and reproducible method to control the thickness of black phosphorus flakes in real time using a UV/ozone treatment is demonstrated. Back-gated black phosphorus field-effect transistors (FETs) were fabricated using thick black phosphorus flakes obtained by thinning of black phosphorus, as oxygen radicals generated by UV irradiation formed phosphorus oxides on the surface. In order to monitor the thickness effect on the electrical properties, the fabricated FETs were loaded in the UV/ozo

While the effects of simulation education and the importance of the clinical reasoning process have been well-reported, an acute myelocytic leukemia (AML) patient-care simulation program has yet to be formulated exclusively for the clinical experience of students. This study developed and subsequently applied a simulation program based on clinical reasoning for AML to improve the learning outcomes and describe the learning experience for nursing students. Following a mixed-methods framework, the

In this study, the Taguchi experimental design method using an L16 orthogonal array was attempted in order to investigate the optimal operating conditions for the CO2 methanation process in Ni-based catalysts. The relative influence of the main factors affecting CO2 conversion and CH4 yield was ranked as follows: reactor pressure > space velocity > reaction temperature. The optimal combination of operating conditions was a reactor temperature of 315 °C, a pressure of 19 bar, and a space ve

Black phosphorus (BP) has attracted significant attention due to its excellent optical and electrical properties. However, the rapid degradation of BP under ambient air limits further research on its properties and implementation in various fields. This degrading behavior lowers the performance of BP-based devices and can even result in a complete failure when exposed to air for an extended period of time. In our research, the degraded surface with "bubbles" was recovered to its pristine state b

This participatory action research study was conducted to confirm the implementation process and effect of developing and applying a preceptor education program based on the One-Minute Preceptor Model to foster the competence of preceptor clinical nurses. The study was conducted for eight weeks from March 2020 on 30 preceptor nurses in South Korea. Nursing standards were developed for two weeks and six cycles (comprising four stages) were performed. Data collection was integrated using both quan

Some nursing students experience errors related to patient safety, such as falls, medication administration errors, and patient identification errors during clinical practice. However, only a few nursing students report errors during clinical practice. Accordingly, the present study aimed to investigate patient safety errors that nursing students experience during clinical practice in the context of the COVID-19 pandemic. This study conducted in-depth interviews with 14 candidates for graduation

Epoxy resins are widely used in various industrial fields due to their low cost, good workability, heat resistance, and good mechanical strength. However, they suffer from brittleness, an issue that must be addressed for further applications. To solve this problem, additional fillers are needed to improve the mechanical and thermal properties of the resins; zirconia is one such filler. However, it has been reported that aggregation may occur in the epoxy composites as the amount of zirconia incr

To investigate the heat loads imposed on a reactor vessel through the natural convection of core melts insevere accidents, mass transfer experiments were performed based on the heat transfer/mass transferanalogy, using two- (2-D) and three-dimensional (3-D) facilities of various heights. The modified Rayleighnumbers ranged from 1012 to 1015, with a fixed Prandtl number of 2,014. The measured Nusseltnumbers showed a trend similar to those of existing studies, but the absolute values showed discre

BACKGROUND: Evidence-based practice (EBP) is crucial for delivering high-quality healthcare and effective self-care. Enhancing clinical nurses' research competencies through structured mentorship is key to the widespread application of EBP. This study evaluated a newly developed Research Competency Enhancement Program (RCEP), aimed at bolstering EBP among experienced nurses. METHODS: Conducted in a tertiary university hospital in Korea, this single-group study employed a pretest-post-test design