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排序方式: 共有4565条查询结果,搜索用时 171 毫秒
1.
Choi Da-Hye Han Joon-Hee Hong Min Lee Sun-Yeop Lee Soo-Ung Kwon Tae-Hyung 《Food science and biotechnology》2022,31(1):121-129
Food Science and Biotechnology - Rosa rugosa root is traditionally known to be effective in the treatment of diabetes in Korea. R. rugosa root-specific compounds also show antioxidant effects, and... 相似文献
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Aluminum, used as a material for heat exchangers in air conditioners, often has problems of leakage of refrigerant on the Al surface due to corrosion. The problems originate from pitting corrosion of the Al in an external environment. To understand corrosion problems, it is necessary to study the corrosion behavior of Al in various environments. In this study, the effects of environmental factors on the corrosion behavior of Al were studied by the surface analysis and electrochemical testing in 3.5 wt% NaCl solutions, with changes of dissolved oxygen, temperature, and concentration of Cl− and S ions. Among the external environmental factors, the presence of oxygen and the increase of Cl− ion concentration do not significantly affect the corrosion potential of Al, leading to an increase of only 1.1 and 6 times, respectively. There was a significant decrease in the corrosion resistance of Al, approximately 40 and 800 times, respectively, with the increase of concentration of S and temperature. 相似文献
3.
Park Tae-Hwan Lee Hye-Jin Kwon Ryeo-Won Lee In-Ho Lee Seung-Jea Park Jong-In Choo Eon-Ah Lee Jeong-Beom 《Food science and biotechnology》2022,31(9):1207-1212
Food Science and Biotechnology - Caffeine and orexin can affect awakening, neuroendocrine, and sympathetic nerve function. Our previous study has reported that caffeine intake can increase human... 相似文献
4.
Gupta Yubraj Lama Ramesh Kumar Lee Sang-Woong Kwon Goo-Rak 《Multimedia Tools and Applications》2020,79(43-44):32195-32224
Multimedia Tools and Applications - The automatic binary classification of normal and abnormal subjects using magnetic resonance (MR) brain images has made remarkable progress in recent years. This... 相似文献
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Russian Microelectronics - The effect of the CF4/CHF3 ratio in a CF4 + CHF3 + 9% O2 mixture on the parameters of the gaseous phase and kinetics of etching of silicon under the conditions of... 相似文献
8.
Kangho Park Woo‐Bin Jung Kiok Kwon Oleg D. Lavrentovich Hee‐Tae Jung 《Advanced functional materials》2019,29(26)
Directed self‐assembly (DSA) using soft materials is an important method for producing periodic nanostructures because it is a simple, cost‐effective process for fabricating high‐resolution patterns. Most of the previously reported DSA methods exploit the self‐assembly of block copolymers, which generates a wide range of nanostructures. In this study, cylinders obtained from supramolecular dendrimer films with a high resolution (<5 nm) exhibit planar ordering over a macroscopic area via guiding topographical templates with a high aspect ratio (>10) and high spatial resolution (≈20 nm) of guiding line patterns. Theoretical and experimental studies reveal that this property is related to geometrical anchoring on the meniscus region and physical surface anchoring on the sidewall. Furthermore, this DSA of dendrimer cylinders is demonstrated by the non‐regular geometry of the patterned template. The macroscopic planar alignment of the dendrimer nanostructure reveals an extremely small feature size (≈4.7 nm) on the wafer scale (>16 cm2). This study is expected to open avenues for the production of a large family of supramolecular dendrimers with different phases and feature dimensions oriented by the DSA approach. 相似文献
9.
Hahn Changhee Shin Hyung June Kwon Hyunsoo Hur Junbeom 《Wireless Personal Communications》2019,107(3):1337-1353
Wireless Personal Communications - In cloud-assisted data outsourcing systems, the privacy of sensitive data is a major concern. Thus, data are uploaded in encrypted form in many cloud applications... 相似文献
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