A5067619911- Parallel Computing and Optimization Techniques
- Enzyme-mediated dye degradation
- Mycorrhizal Fungi and Plant Interactions
- Embedded Systems Design Techniques
- Low-power high-performance VLSI design
- Plant Pathogens and Fungal Diseases
- Fungal Biology and Applications
- Food Quality and Safety Studies
- Cancer, Lipids, and Metabolism
- Building materials and conservation
- Forest Ecology and Biodiversity Studies
- Wood Treatment and Properties
- Insect and Arachnid Ecology and Behavior
- Lignin and Wood Chemistry
- Chromium effects and bioremediation
- Wood and Agarwood Research
- Microbial bioremediation and biosurfactants
- Advanced Battery Technologies Research
- Graphene research and applications
- VLSI and FPGA Design Techniques
- Advanced Data Storage Technologies
- Phytoestrogen effects and research
- Organic Electronics and Photovoltaics
- Pesticide and Herbicide Environmental Studies
- Precipitation Measurement and Analysis
Korea Forest Service
2015-2025
Seoul National University
2002-2021
Yonsei University
2020
Institute of Forest Science
2016
Chonnam National University
2015
Forest Research Institute
2015
Korea University
2007-2014
University of Seoul
2014
Gwangju Institute of Science and Technology
2014
Samsung (South Korea)
2008
Most digital systems are equipped with dc-dc converters to supply various levels of voltages from batteries logic devices. DC-DC maintain legal voltage ranges regardless the load current variation as well battery drop. Although efficiency is changed by output level and current, most existing power management techniques simply ignore converters. However, without a careful consideration converters, finding true optimal will be impossible. In this paper, we solve problem energy minimization...
Polyamide reverse osmosis (RO) membranes with deposited carbon nanotubes (CNTs) coated poly(vinyl alcohol) (PVA) on the surface were prepared by interfacial polymerization followed deposition of oxidized CNTs and coating PVA surface. The polyamide membrane (PA–CNT–PVA membrane) showed much improved mechanical properties durability compared without (PA membrane). PA–CNT–PVA also exhibited better antifouling than PA commercial RO (LFC-1). antibiofouling performances possible when...
To ensure the environmentally safe usage of copper amine-based wood preservatives in aquatic environments, it is necessary to minimize leaching from treated wood. In this study, alkaline quat (ACQ) was reformulated enhance resistance by adjusting proportions copper, didecyldimethylammonium chloride (DDAC), and mono-ethanolamine (Mea) solvent. The proportion formulation decreased 40% while maintaining total retention active ingredients through increasing DDAC. molar ratio Cu Mea then adjusted...
Abstract This study assessed marine borer damage to various wood species along Korea’s coast, severe was found in 6 Korean and a tropical (Dillenia) species, other (Apitong Ipe) modified woods showed resistance borers even after exposure for up six months. Molecular identification of organisms from samples revealed 12 including key Bankia carinata , Teredo navalis Limnoria sp. The results this are expected provide useful information on durability as preliminary data the use environment Korea.
This study was conducted to determine the correlation between mass loss (ML) of wood due thermal modification and equilibrium moisture content (EMC) thermally modified wood. After larch lumber under various temperature time conditions, ML according treatment measured, evaluated for each condition. As increased became longer, increased. In addition, as increased, difference in EMC non-treated tended increase. Finally, a robust logarithmic observed These results suggest that can be predicted...
This is the first report on preparation of cardanol-containing methacrylate polymers having antibacterial properties for surface coating applications.
Pentacene organic thin-film transistors (OTFTs) have demonstrated the highest performance among TFTs with an semiconductor channel. High operating voltages (20-100 V), stemming from poor capacitive coupling between gate electrode and channel, are a major limitation, particularly for portable battery-powered device applications. OTFTs fabricated on flexible polymer substrates, often characterized by rough surfaces, benefit use of high-K dielectrics given ability to accommodate thicker films...
Wheat bran is a rich source of dietary fiber, which arabinoxylan the most abundant non-starch polysaccharide. Arabinoxylan has been known to exert in vivo immunological activities. Based on prior findings, we pretreated wheat with enzymatic hydrolysis increase release soluble and investigated whether oral administration altered macrophage activity mouse model. After four weeks treatment, isolated peritoneal macrophages for phagocytic receptor analysis lipopolysaccharide (LPS)-induced...
NAND flash memory can provide cost-effective secondary storage in mobile embedded systems, but its lack of a random access capability means that code shadowing is generally required, taking up extra RAM space. Demand paging with has recently been proposed as an alternative which requires less RAM. This scheme even more attractive for OneNAND flash, consists array SRAM buffers, and supports eXecute-In-Place (XIP), allows limited to data on the buffers.We introduce novel demand method XIP...
Memory systems are dominant energy consumers, and thus many reduction techniques for memory buses devices have been proposed. For practical practices, we to take into account the interaction between a processor cache memories together with application programs. Furthermore, characterization of must be accurate enough justify various techniques. In this article, build an in-house simulator that is accelerated by special hardware support while maintaining accuracy. We explore behavior values...
In this paper, we introduce a precise energy characterization of SDRAM main memory systems and explore the amount associated with design parameters, leading to reduction techniques that are able recommend for practical use. We build an in-house simulator based on cycle-accurate measurement state-machine-based characterizations which independently characterize dynamic static energy. behavior by changing parameters such as processor clock, clock cache configuration. Finally propose new address...
Most digital systems are equipped with DC-DC converters to supply various levels of voltages from batteries logic devices. DCDC maintain legal voltage ranges regardless the load current variation as well battery drop. Although efficiency is changed by output level and current, most existing power management techniques simply ignore converters. However, without a careful consideration converters, finding true optimal will be impossible. In this work, we solve problem energy minimization...
We report on ultraviolet emission from a multi-layer graphene (MLG)/MgZnO/ZnO light-emitting diodes (LED). The p-type MLG and MgZnO in the MLG/MgZnO/ZnO LED are used as transparent hole injection electron blocking layers, respectively. current-voltage characteristics of show that current transport is dominated by tunneling processes barrier layer under forward bias conditions. holes injected recombine efficiently with electrons accumulated ZnO, shows strong band edge ZnO weak red-orange deep...