11 Result(s)
within
Sung Hyun Park
Science, Humanities and Social Sciences, multidisciplinary
Science, multidisciplinary
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Article
Open AccessIn-situ and wavelength-dependent photocatalytic strain evolution of a single Au nanoparticle on a TiO2 film
Photocatalysis is a promising technique due to its capacity to efficiently harvest solar energy and its potential to address the global energy crisis. However, the structure–activity relationships of photocata...
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Article
Open AccessHigh-performance piezoelectric energy harvesting in amorphous perovskite thin films deposited directly on a plastic substrate
Most reported thin-film piezoelectric energy harvesters have been based on cantilever-type crystalline ferroelectric oxide thin films deposited on rigid substrates, which utilize vibrational input sources. Her...
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Article
Open AccessRobust 2D layered MXene matrix–boron carbide hybrid films for neutron radiation shielding
Large-scale fabrication of neutron-shielding films with flexible or complex shapes is challenging. Uniform and high boron carbide (B4C) filler loads with sufficient workability are needed to achieve good neutron-...
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Article
Open AccessSafety and feasibility of reduced-port robotic distal gastrectomy for gastric cancer: a phase I/II clinical trial using the da Vinci Single Port(SP) robotic system
Minimally invasive surgery reduces surgical trauma and the size and number of incisions. The da Vinci SP robotic surgical system was designed to overcome the technical demands of single-incision laparoscopic s...
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Article
Open AccessShort-term outcomes and cost-effectiveness of laparoscopic gastrectomy with articulating instruments for gastric cancer compared with the robotic approach
To overcome the limitations of laparoscopic surgery, robotic systems have been commonly used in the era of minimally invasive surgery despite their high cost. However, the articulation of instruments can be ac...
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Article
Open AccessChanges in failure to rescue after gastrectomy at a large-volume center with a 16-year experience in Korea
Failure to rescue (FTR), the mortality rate among patients with complications, is gaining attention as a hospital quality indicator. However, comprehensive investigation into FTR has rarely been conducted afte...
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Article
Open AccessHeterogeneously integrated flexible microwave amplifiers on a cellulose nanofibril substrate
Low-cost flexible microwave circuits with compact size and light weight are highly desirable for flexible wireless communication and other miniaturized microwave systems. However, the prevalent studies on flex...
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Article
Open AccessA synthetic microbial biosensor for high-throughput screening of lactam biocatalysts
Biocatalytic cyclization is highly desirable for efficient synthesis of biologically derived chemical substances, such as the commodity chemicals ε-caprolactam and δ-valerolactam. To identify biocatalysts in l...
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Article
Open AccessStrain Balanced AlGaN/GaN/AlGaN nanomembrane HEMTs
Single crystal semiconductor nanomembranes (NM) are important in various applications such as heterogeneous integration and flexible devices. This paper reports the fabrication of AlGaN/GaN NMs and NM high ele...
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Article
Open AccessRoll-to-Roll sputtered ITO/Cu/ITO multilayer electrode for flexible, transparent thin film heaters and electrochromic applications
We fabricate high-performance, flexible, transparent electrochromic (EC) films and thin film heaters (TFHs) on an ITO/Cu/ITO (ICI) multilayer electrode prepared by continuous roll-to-roll (RTR) sputtering of I...
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Article
Open AccessLess strained and more efficient GaN light-emitting diodes with embedded silica hollow nanospheres
Light-emitting diodes (LEDs) become an attractive alternative to conventional light sources due to high efficiency and long lifetime. However, different material properties between GaN and sapphire cause sever...
