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Dyeability of Perilla Frutescens Extract
( Qian Wen Wang ),( Jung Soon Lee ) 한국감성과학회 2015 추계학술대회 Vol.2015 No.-
Perilla Frutescens, its scientific name being Perilla Frutescens L., is a leaf of a yearly-herbaceous-Lamiaceae plant called Beefsteak plant, and its shape is similar to the wild sesame leaf. The function of Perilla Frutescens includes removal of fever, perspiration, strengthening stomach, and detoxification, and by the recent study, it also shows it has anti-allergic, anticancer, anti-microbial properties. In this study, Perilla Frutescens was soaked and heated with distilled water, by the ratio of 1 to 10(water being the 10) to extract its pigment, and the extract was concentrated by vacuum evaporation. To evaluate the dyeing property of this Perilla Frutescens extract toward silk fabric, the fabrics were dyed in various conditions; varying concentration, temperature, and time of dyeing procedure. Thus, by this, this study aims to find the optimal condition of dyeing. To have the evaluation done in accuracy, K/S, color difference, color fastness, and antibiotic property of dyed fabrics were also checked. This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education, Science and Technology(2014R1A1A3A04049595)
One Dimensional Thaw Consolidation Behaviors with Periodical Thermal Boundaries
Wenli Wang,Lanmin Wang,Fan Yu,Qian Wang 대한토목학회 2016 KSCE JOURNAL OF CIVIL ENGINEERING Vol.20 No.4
In this paper, one dimensional thaw consolidation behaviors with periodical thermal boundaries were studied. A new numerical simulation method was proposed to implement thaw consolidation calculation. Thaw consolidation tests were conducted to verify the validity of new proposed method. It was proved that the simulated data have a good agreement with tested results. Due to the influence of periodical thermal boundary, Thaw Consolidation Degree (TCD) changes periodically, which is the most significant difference from that of constant thermal boundary problems. At the same time, peak values of TCD in each freeze-thaw cycle decreases continuously with time and tends to be the value of TCD0 obtained from constant thermal boundary, which is equal to the corresponding average temperature of periodical thermal boundary. The attenuation process of TCD is proportionally related to thaw consolidation Ratio (R).
Wen-Min Wang,Shi-Jer Tseng,Yu-Shuan Huang,Qian-Yuan Wu,Wen-Long Wang,Jerry J. Wu 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.119 No.-
Nitrate pollution in wastewater has posed a threat to human health and the environment. Photocatalyticreduction is a promising technology to remove nitrate due to its high adaptability, low cost, and high efficiency. However, there is a great challenge to design photocatalyst with high nitrate reduction and highselectivity of nitrogen (N2) yield. In this study, a novel hollow-structured Pd/TiO2 (PHT1) photocatalyst issynthesized with large specific surface area (SBET) and pore volume, strong UV adsorption, high reductionpotential than nitrate to nitrite, high charge transfer rate, and low electron-hole recombination rate. PHT1 exhibits a superior photocatalytic activity on the removal of methyl orange and nitrate. In addition,PHT1 exhibits high N2 selectivity (>95 %). A lower pH can promote the reduction of nitrate and the selectivityof N2 by PHT1. Electrons (e-) and CO2– are the main active species for nitrate reduction with OH asauxiliary radicals. Three main pathways for nitrate reduction are proposed: i) the reaction with formicacid under acidic conditions; ii) the reduction by electrons and the loaded Pd of photocatalyst to captureelectrons to inhibit electron-hole recombination; iii) the reduction by CO2 – generated from formic acidoxidation by OH.
Wang Huihui,Wen Hongwei,Li Jing,Chen Qian,Li Shanshan,Wang Yanling,Wang Zhenchang 대한영상의학회 2021 Korean Journal of Radiology Vol.22 No.7
Objective: To evaluate microstructural damage in high myopia (HM) patients using 3T diffusion kurtosis imaging (DKI). Materials and Methods: This prospective study included 30 HM patients and 33 age- and sex-matched healthy controls (HCs) with DKI. Kurtosis parameters including kurtosis fractional anisotropy (FA), mean kurtosis (MK), axial kurtosis (AK), and radial kurtosis (RK) as well as diffusion metrics including FA, mean diffusivity, axial diffusivity (AD), and radial diffusivity derived from DKI were obtained. Group differences in these metrics were compared using tract-based spatial statistics. Partial correlation analysis was used to evaluate correlations between microstructural changes and disease duration. Results: Compared to HCs, HM patients showed significantly reduced AK, RK, MK, and FA and significantly increased AD, predominately in the bilateral corticospinal tract, right inferior longitudinal fasciculus, superior longitudinal fasciculus, inferior fronto-occipital fasciculus, and left thalamus (all p < 0.05, threshold-free cluster enhancement corrected). In addition, DKI-derived kurtosis parameters (AK, RK, and MK) had negative correlations (r = -0.448 to -0.376, all p < 0.05) and diffusion parameter (AD) had positive correlations (r = 0.372 to 0.409, all p < 0.05) with disease duration. Conclusion: HM patients showed microstructural alterations in the brain regions responsible for motor conduction and visionrelated functions. DKI is useful for detecting white matter abnormalities in HM patients, which might be helpful for exploring and monitoring the pathogenesis of the disease.
Wang, Chao,Xiao, Qian,Li, Yu-Wen,Zhao, Chao,Jia, Na,Li, Rui-Li,Cao, Shan-Shan,Cui, Jia,Wang, Lu,Wu, Yin,Wen, Ai-Dong Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7
Adenocarcinoma of lung has high incidence and a poor prognosis, woith chemotherapy as the main therapeutic tool, most commonly with cisplatin. However, chemotherapy resistance develops in the majority of patients during clinic treatment. Mechanisms of resistance are complex and still unclear. Although annexin play important roles in various tumor resistance mechanisms, their actions in cisplatin-resistant lung adenocarcinoma remain unclear. Preliminary studies by our group found that in cisplatin-resistant lung cancer A549 cells and lung adenocarcinoma tissues, both mRNA and protein expression of annexins A1, A2 and A3 is increased. Using a library of annexin A1, A2 and A3 targeting combined molecules already established by ourselves we found that specific targeting decreased cisplatin-resistance. Taken together, the underlined effects of annexins A1, A2 and A3 on drug resistance and suggest molecular mechanisms in cisplatin-resistant A549 cells both in vivo and in vitro. Furthermore, the study points to improved research on occurrence and development of lung adenocarcinoma, with provision of effective targets and programmes for lung adenocarcinoma therapy in the clinic.
Wen-Liang Wang,Pei-Pei Liu,Ya-Peng Zhang,Jing Li,Hong-Wen Tao,Qian-Qun Gu,Wei-Ming Zhu 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.9
A new hopane type pentacyclic triterpenoid, 2-hydroxydiplopterol (1) has been isolated from the metabolites produced by the halotolerant fungal strain Aspergillus variecolor B-17. The structure of 1 was determined by spectroscopic methods and single crystal X-Ray diffraction analysis. 2-Hydroxydiplopterol (1) exhibited cytotoxicity against K562 cells with an IC50 value of 22 μM.
Longitudinal Dynamic End Effect of Single-Sided Linear Induction Motor for Medium–Low Speed Maglev
Wang Ying,Liu Xuelong,Lu Weiguo,Wen Tianqi,Yu Fan,Wu Qian 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.4
The Short Primary Single-sided Linear Induction Motor (SLIM) applied in medium–low maglev vehicle has end eff ect that will cause a signifi cant reduction of train thrust. This paper analyzes the relationship between the Longitudinal Dynamic End Eff ect (LDEE) and the speed of SLIM. It is concluded that LDEE increases with the motor speed. The LDEE at motor’s exit area is called tailing eff ect. We take advantage of the tailing eff ect between adjacent SLIMs to make the air-gap magnetic fi eld of these motors continuous by adjusting their intervals and excitation phase diff erence. The several SLIM on the same side of the vehicle is equivalent to a “whole motor” with overall one entry area and one exit area. This method can reduce the resistance of the whole vehicle running at high speed, which can provide a new solution for the design of high-speed SLIM applied in Maglev