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Tang, Yu-Ping,Li, Peng-Gao,Kondo, Miwako,Ji, Hong-Ping,Kou, Yan,Ou, Boxin The Korean Society of Food Science and Nutrition 2009 Journal of medicinal food Vol.12 No.4
The effect of a mangosteen product containing multivitamins and essential minerals was tested on immune function and well-being in healthy adults. A randomized, double blinded, placebo-controlled study was conducted in 59 healthy human subjects (40.60 years old). Changes from baseline immune function were measured after a 30-day consumption of the mangosteen product and the placebo. The subjects' self-appraisal of their health status was also surveyed. A xanthone-rich mangosteen product intake increased mean values for peripheral T-helper cell frequency (P=.020) and reduced the serum C-reactive protein concentration (P=.014). Increases in peripheral CD4/CD8 double-positive (DP) T-cell frequency and serum complement C3, C4, and interleukin (IL)-$1{\alpha}$ concentrations were significantly higher in the experimental group than in the placebo group (DP, P=.038; C3, P=.017; C4, P=.031; IL-$1{\alpha}$, P=.006). At the end of study, serum IL-$1{\alpha}$ and IL-$1{\beta}$ concentrations in the study group were significantly higher than that in the placebo group (IL-$1{\alpha}$, P=.033; IL-$1{\beta}$, P=.04). Furthermore, more participants in the experimental group reported greatly improved overall health status compared with participants receiving placebo (P=.001). The results indicated that the intake of an antioxidant-rich product significantly enhanced immune responses and improved the subject's self-appraisal on his or her overall health status.
High‑frequency planar transformer optimal design and analysis
Yu Tang,Guanghui Wang,Zhe Shi,Jincai Niu 전력전자학회 2023 JOURNAL OF POWER ELECTRONICS Vol.23 No.2
Due to the rapid development of modern industry, there is an increasing demand for isolated switching power supplies (SMPS) with a high efficiency and a high power density. Magnetic components, which occupy most of the converter volume, have been a key bottleneck in achieving high power density. This paper presents an optimal design method for high power density planar transformers. Applying the principle of flux cancellation, a matrix transformer that originally needed an independent magnetic core was integrated into a single magnetic core to reduce the volume of the core. Meanwhile, a loss model of the transformer is established, and an optimized design method of the winding structure is given according to that model to further reduce the winding loss of the transformer. Finally, an LLC converter with a resonant frequency of 1 MHz is designed to verify the practical performance of the proposed transformer.
Tang, Qing-Feng,Ji, Qing,Tang, Yu,Hu, Song-Jiao,Bao, Yi-Jie,Peng, Wen,Yin, Pei-Hao Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.10
Golgi phosphoprotein 2 (GOLPH2) is a very important biomarker in a variety of diseases. Its biological function is not clear, particularly in gastric cancer. To investigate the role of GOLPH2 in human gastric cancer, and determine its effect on the Th1 lymphocyte response, its expression and that of IL-12A were measured by real-time PCR and immunohistochemistry. The relationship between GOLPH2 and IL-12A was analysed statistically. The effect of GOLPH2 on the Th1 lymphocyte response was investigated with an in vitro co-culture system. The results showed that in human gastric cancer, the expression of GOLPH2 was significantly higher and the expression of IL-12A was lower than in normal gastric mucosal tissues, and the expression levels of GOLPH2 and IL-12A were negatively correlated. In addition, obvious down-regulation of the Th1 response was observed when lymphocytes were co-cultured with gastric cancer SGC7901 cells over-expressing GOLPH2. GOLPH2 down-regulated the expression of IL-12A, and inhibited the expression of TNF-${\alpha}$ and IFN-${\gamma}$. The results indicated that GOLPH2 down-regulates the Th1 response via suppression of IL-12A in human gastric cancer, and this might provide a target for the prevention and treatment.
Yu, Jianwei,Ornelas, Joshua Loroñ,a,Tang, Yumin,Uddin, Mohammad Afsar,Guo, Han,Yu, Simiao,Wang, Yulun,Woo, Han Young,Zhang, Shiming,Xing, Guichuan,Guo, Xugang,Huang, Wei American Chemical Society 2017 ACS APPLIED MATERIALS & INTERFACES Vol.9 No.48
<P>A series of polymer semiconductors incorporating 2,1,3-benzothiadiazole-5,6-dicarboxylicimide (BTZI) as strong electron-withdrawing unit and an alkoxy-functionalized head-to-head linkage containing bithiophene or bithiazole as highly electron-rich co-unit are designed and synthesized. Because of the strong intramolecular charge transfer characteristics, all three polymers BTZI-TRTOR (P1), BTZI-BTOR (P2), and BTZI-BTzOR (P3) exhibit narrow bandgaps of 1.13, 1.05, and 0.92 eV, respectively, resulting in a very broad absorption ranging from 350 to 1400 nm. The highly electron-deficient 2,1,3-benzothiadiazole-5,6-dicarboxylicimide and alkoxy-functionalized bithiophene (or thiazole) lead to polymers with low-lying lowest unoccupied molecular orbitals (-3.96 to -4.28 eV) and high-lying highest occupied molecular orbitals (-5.01 to -5.20 eV). Hence, P1 and P3 show substantial and balanced ambipolar transport with electron mobilities/hole mobilities of up to 0.86/0.51 and 0.95/0.50 cm(2) V-1 s(-1), respectively, and polymer P2 containing the strongest donor unit exhibited unipolar p-type performance with an average hole mobility of 0.40 cm(2) V-1 s(-1) in top-gate/bottom-contact thin-film transistors with gold as the source and drain electrodes. When incorporated into bulk heterojunction polymer solar cells, the narrow bandgap (1.13 eV) polymer P1 shows an encouraging power conversion efficiency of 4.15% with a relatively large open-circuit voltage of 0.69 V, which corresponds to a remarkably small energy loss of 0.44 eV. The power conversion efficiency of P1 is among the highest reported to date with such a small energy loss in polymer:fullerene solar cells.</P>
Tang, Xiao-Kui,Wang, Ke-Jian,Tang, Yu-Kui,Chen, Li Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7
The aims of this study were to investigate the influence of ubiquitin- conjugating enzyme E2C (UBE2C) on biological behavior of lung cancer cells. Using MTT, flow cytometry and invasion assays, we detected UBE2C expression and evaluated its biological properties in these cells, including effects on proliferation, the cell cycle profile and invasive capability. Compared with control cells, the UBE2C transfected cells demonstrated increased cellular proliferation (p<0.05). UBE2C transfected cells also had a lower percentage in G1 phase and a higher percentage in S phase (p<0.05). Importantly, the UBE2C transfected cells had a notable enhancement of cell numbers penetrating the basement membrane compared with the control group (p<0.05). Ectopic up-regulation UBE2C promoted the growth of lung cancer cells in vivo. Furthermore, we found UBE2C increased the expression of cyclin D1 and MMP-2. These results show UBE2C may represent a potential therapeutic target for lung cancer.
Tang, Yu-Chao,Peng, Ji-Gen,Liu, Li-Wei Korean Mathematical Society 2014 대한수학회보 Vol.51 No.5
The purpose of this paper is to address the multiple split common fixed point problem. We present two different methods to approximate a solution of the problem. One is cyclic iteration method; the other is simultaneous iteration method. Under appropriate assumptions on the operators and iterative parameters, we prove both the proposed algorithms converge to the solution of the multiple split common fixed point problem. Our results generalize and improve some known results in the literatures.
Yu-Ping Tang,Peng-Gao Li,Miwako Kondo,Hong-Ping Ji,Yan Kou,Boxin Ou 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.4
The effect of a mangosteen product containing multivitamins and essential minerals was tested on immune function and well-being in healthy adults. A randomized, double blinded, placebo-controlled study was conducted in 59 healthy human subjects (40–60 years old). Changes from baseline immune function were measured after a 30-day consumption of the mangosteen product and the placebo. The subjects' self-appraisal of their health status was also surveyed. A xanthone-rich mangosteen product intake increased mean values for peripheral T-helper cell frequency (P=.020) and reduced the serum C-reactive protein concentration (P=.014). Increases in peripheral CD4/CD8 double-positive (DP) T-cell frequency and serum complement C3, C4, and interleukin (IL)-1α concentrations were significantly higher in the experimental group than in the placebo group (DP, P=.038; C3, P=.017; C4, P=.031; IL-1α, P=.006). At the end of study, serum IL-1α and IL-1β concentrations in the study group were significantly higher than that in the placebo group (IL-1α, P=.033; IL-1β, P=.04). Furthermore, more participants in the experimental group reported greatly improved overall health status compared with participants receiving placebo (P=.001). The results indicated that the intake of an antioxidant-rich product significantly enhanced immune responses and improved the subject's self-appraisal on his or her overall health status.
Simple symmetric switched inductor high step‑down converter
Yu Tang,Xuran Rong,Jiarong Kan,Yun Zhang,Lin Jiang 전력전자학회 2022 JOURNAL OF POWER ELECTRONICS Vol.22 No.10
The voltage gain of a traditional buck converter is finite due to the high voltage across the semiconductor and reduced efficiency. A non-isolated high step-down DC–DC converter based on symmetric switched inductors is proposed in this paper. The connection of inductors in series or in parallel is controlled by switches to improve the conversion ratio. The converter has many beneficial characteristics, such as high step-down, reduced voltage stresses, and high efficiency. Moreover, it can realize voltage balance on the switches. The voltage on the switch does not oscillate and the loss of the switches is reduced. Therefore, the efficiency of the whole topology is improved. This paper discusses the operation principle, modes analysis, voltage gain analysis, voltage stress analysis, output ripple analysis, loss analysis, comparative analysis and design considerations. The correctness of the theoretical analysis of the proposed converter is verified by a laboratory prototype, and its peak efficiency reaches 96.5%.
Yu-Chao Tang,Ji-Gen Peng,Li-Wei Liu 대한수학회 2014 대한수학회보 Vol.51 No.5
The purpose of this paper is to address the multiple split common fixed point problem. We present two different methods to approximate a solution of the problem. One is cyclic iteration method; the other is simultaneous iteration method. Under appropriate assumptions on the operators and iterative parameters, we prove both the proposed algorithms converge to the solution of the multiple split common fixed point problem. Our results generalize and improve some known results in the literatures.