Crosstalk evaluation in multiview autostereoscopic three-dimensional displays with an optimized diaphragm applied

Peng, Yi-Fan,Li, Hai-Feng,Zheng, Zhen-Rong,Xia, Xin-Xing,Yao, Zhi,Liu, Xu The Korean Infomation Display Society 2012 Journal of information display Vol.13 No.2

The crosstalk evaluation of multiview autostereoscopic three-dimensional (3D) displays is discussed, with both the human and technical factors investigated via image quality assessment. In the imaging performance measurements and analysis for a multiview autostereoscopic display prototype equipment, it was inferred that crosstalk would have both a positive and a negative effect on the imaging performance of the equipment. The importance of the attached diaphragm in the crosstalk evaluation was proposed and then experimentally verified, using the developed prototype equipment. The luminance distribution and crosstalk situation were given, with two different diaphragm arrays applied. The analysis results showed that the imaging performance of this 3D display system can be improved with minimum changes to the system structure.

Bidirectional two-sample mendelian randomization analysis identifies causal associations between age at menarche and sarcopenia-related traits

Fan Wei,Gu Peng,Pu Bin,Yue Dan,Xin Qiao,Zheng XiaoHui,Zeng ZhanPeng,Fan Shaoyong 한국유전학회 2023 Genes & Genomics Vol.45 No.8

Background Observational studies have shown that the age of menarche is associated with sarcopenia, but confounding factors make the causal relationship difficult to infer. Objective Therefore, we conducted a bidirectional two-sample Mendelian randomized (MR) analysis to evaluate the potential causal relationship between age at menarche and sarcopenia-related traits (hand grip strength, lean mass, walking pace). Methods We obtained the latest aggregate statistics from the Genome-wide association studies (GWAS) database on the age of menarche of 182,416 participants from ReproGen, the appendicular lean mass of 244,730 participants from EMBL’s European Bioinformatics Institute, the left-hand grip strength of 401,026 participants, the right-hand grip strength of 461,089 participants and the usual walking pace of 459,915 participants from the UK Biobank. The inverse variance weighting (IVW) method and other MR methods were used to evaluate the bidirectional causal relationship between the age of menarche and sarcopenia. Results The forward MR results showed that the age of menarche predicted by the gene was positively correlated with left-hand grip strength (IVWβ=0.041, P = 2.00 × 10−10), right-hand grip strength (IVWβ=0.053, P = 1.97 × 10−18), appendicular lean mass (IVWβ=0.012, P = 4.38 × 10−13) and usual walking pace (IVWβ=0.033, P = 1.62 × 10−8).In the reverse MR analysis, we also found that the usual walking pace was positively correlated with the age of menarche predicted by genes (IVWβ=0.532, P = 1.65 × 10−4). Still, there was no causal relationship between grip strength and appendicular lean mass and the age at menarche. Conclusion Our results show that earlier menarche will increase the risk of sarcopenia. In addition, people with higher muscle function tend to have menarche later. These findings may provide a reference for prevention strategies and interventions for menarche in advance and sarcopenia.

A Study on Chinese Spring Festival Consumption of New Generation Migrant Workers : A Focus on LIAN and MIANZI Culture

Peng Fan,Sang-Soo Park 한국무역연구원 2015 무역연구 Vol.11 No.5

Our paper is aimed at understanding consumption patterns of new generation migrant workers during the Chinese spring festival. The purpose of this paper is to investigate the extent to which Chinese face (LIAN and MIANZI) is related to consumption and to examine the mediating role of social alienation. It has been fully proven that Chinese face promotes the consumption of luxury items and gift-giving in the past years. From the perspective of Chinese people, our research focuses on dividing Chinese face into three dimensions: LIAN, Ability-Oriented MIANZI and Relationship-Oriented MIANZI. 252 new generation migrant workers in China were used to test the relationship between Chinese face, social alienation and Chinese spring festival consumption. LIAN, Ability-Oriented MIANZI, Relationship-Oriented MIANZI and social alienation was found to be a positive predictor of Chinese spring festival consumption, and the data were consistent with a model positioning social alienation as a mediator of the LIAN and MIANZI to Chinese spring festival consumption.

A 3D Thermal Field Restructuring Method for Concrete Dams Based on Real-Time Temperature Monitoring

Peng Lin,Haoyang Peng,Qixiang Fan,Yunfei Xiang,Zongli Yang,Ning Yang 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.4

Temperature monitoring and control is of great significance to ensure concrete quality during the construction of dam concrete. In this study, a 3D thermal field restructuring method is developed for the complex evolution process of thermal field in dam concrete during construction, based on real-time temperature monitoring. The proposed method is related to the ordinary Kriging interpolation and the distributed optical fiber temperature sensing (DTS) technology. Based on the temperature monitoring of the Wudongde (WDD) super-high arch dam, the 3D thermal field can be acquired effectively and fast by the proposed restructuring method. The results indicate the temperature difference between the temperature measured by thermometers and the restructured temperature is within 1°C. The evolution process of the restructured 3D thermal field for the WDD arch dam is in good agreement with the site situation. In addition, the uncertainty, cons and pros of the proposed method and the optimal layout of temperature sensors are further discussed. Although the proposed thermal field restructuring method has some limitations, it is believed to be a valuable tool for acquiring the 3D thermal field and thermal gradient of dam concrete.

Effect of Tea on Resistance to Type 2 Diabetes

Peng Lu,Kai Fan,Ya-Ting Lu,Yuan-Xu Shi,Dong-Mei Fan,Xiao-Chang Wang 한국차학회 2015 한국차학회지 Vol.- No.S

Insulinotropic hormone glucagon-like peptide-1 (GLP-1) degrades rapidly under the catalytic of dipeptidyl peptidase IV (DPP-IV). Consequently, DPP-IV which is widely expressed in small intestine takes a key role in the prevention and treatment of Type 2 Diabetes. To identify the capability of anti-type 2 diabetes by tea, the inhibition of different types of Chinese teas on DPP-IV was tested. The inhibitory ratio of Buddha Longjing is 31.74%, Tangji Gaoshan Tea is 62.08% (p < 0.01), Yunnan black tea is 66.29% (p < 0.01), Lapsang souchon is 76.40% (p <0.01), Dahongpao is 62.08% (p < 0.01), Tieguanyin is 66.85% (p < 0.01), Moganhuangya is 65.45% (p < 0.01),Huoshanhuangya is 50.56% (p < 0.05).

Crosstalk evaluation in multiview autostereoscopic three-dimensional displays with an optimized diaphragm applied

Yi-Fan Peng,Hai-Feng Li,Zhen-Rong Zheng,Xin-Xing Xia,Zhi Yao,Xu Liu 한국정보디스플레이학회 2012 Journal of information display Vol.13 No.2

The crosstalk evaluation of multiview autostereoscopic three-dimensional (3D) displays is discussed, with both the human and technical factors investigated via image quality assessment. In the imaging performance measurements and analysis for a multiview autostereoscopic display prototype equipment, it was inferred that crosstalk would have both a positive and a negative effect on the imaging performance of the equipment. The importance of the attached diaphragm in the crosstalk evaluation was proposed and then experimentally verified, using the developed prototype equipment. The luminance distribution and crosstalk situation were given, with two different diaphragm arrays applied. The analysis results showed that the imaging performance of this 3D display system can be improved with minimum changes to the system structure.

Ecological No-tillage Technology of Sloping Tea Garden in China

Dong-Mei Fan,Kai Fan,Peng Lu,Xiao-Chang Wang 한국차학회 2015 한국차학회지 Vol.- No.S

The majority of sloping tea gardens in China are now short of effective management because of the limitation of labor force, therefore tea quality is hard to guarantee and the tea industry might be frustrated. Thus a new ecological no-tillage technique (abbreviation for ENT) was put forward, the application of this technique was developed on the basis of some reconstructions in current sloping tea gardens including two key steps: 1) remolding present sloping tea gardens into semi-trapezoidal one by a special ditch; 2) preserving pruning brunches and organic fertilizers into those ditches to form an organic cover layer on soil. This no-tillage technique could significantly reduce soil erosion as well as promote the formation of organic matters on soil surface in 3-5 years. Comparing with the conventional tillage measures, ENT could save about 40% fertilization and 50% labor-cost. Combine with assistant managements, the ecological no-tillage technology could not only effectively recover ecosystem, but also depress plant diseases and insect pests. Improvement on tea production and tea quality especially tea aroma are also observed. It is convincible that ENT has considerable advantages in cost-savings and production efficiency improvement in sloping tea gardens, which makes it one of the reference management choices for future sustainable development.

Preparation and Field-Induced Electrical Properties of Perovskite Relaxor Ferroelectrics

Fan, Huiqing,Peng, Biaolin,Zhang, Qi The Korean Institute of Electrical and Electronic 2015 Transactions on Electrical and Electronic Material Vol.16 No.1

(111)-oriented and random oriented $Pb_{0.8}Ba_{0.2}ZrO_3$ (PBZ) perovskite relaxor ferroelectric thin films were fabricated on Pt(111)/$TiO_x$/$SiO_2$/Si substrate by sol-gel method. Nano-scaled antiferroelectric and ferroelectric two-phase coexisted in both (111)-oriented and random oriented PBZ thin film. High dielectric tunability (${\eta}=75%$, E = 560 kV/cm) and figure-of-merit (FOM ~ 236) at room temperature was obtained in (111)-oriented thin film. Meanwhile, giant electrocaloric effect (ECE) (${\Delta}T=45.3K$ and ${\Delta}S=46.9JK^{-1}kg^{-1}$ at $598kVcm^{-1}$) at room temperature (290 K), rather than at its Curie temperature (408 K), was observed in random oriented $Pb_{0.8}Ba_{0.2}ZrO_3$ (PBZ) thin film, which makes it a promising material for the application to cooling systems near room temperature. The giant ECE as well as high dielectric tunability are attributed to the coexistence of AFE and FE phases and field-induced nano-scaled AFE to FE phase transition.

Recovery of Native Protein from Potato Root Water by Expanded Bed Adsorption with Amberlite XAD7HP

Fan-Kui Zeng,Hong Liu,Peng-Jun Ma,Gang Liu 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.5

Potato root water (PRW) contains ~1.5%protein. In this study, expanded bed adsorption (EBA)chromatography with Amberlite XAD7HP resin adsorbent was used to isolate native protein from crude PRW. The optimal pH and ionic strength for potato protein binding onto Amberlite XAD7HP were 5.0 and 20 mmol/L. The EBA-refined proteins were dried by vacuum freeze drying and spray drying at varying outlet temperatures. Results indicated that low temperature spray drying was the most cost effective method with respect to retaining protease inhibitor activities. The dried protein concentrates appeared bright yellow or dark reddish brown, with a total glycoalkaloid content of ~170 μg/g. The protease inhibitor activity was ~400 mg/g and 11 ~ 12 mg/g for trypsin inhibition and chymotrypsin inhibition, respectively. The results presented here suggest that EBA using Amberlite XAD7HP as the adsorbent is a feasible strategy for the direct adsorption of native protein from crude PRW.

The role of ginsenoside Rb1, a potential natural glutathione reductase agonist, in preventing oxidative stress-induced apoptosis of H9C2 cells

Fan, Hui-Jie,Tan, Zhang-Bin,Wu, Yu-Ting,Feng, Xiao-Reng,Bi, Yi-Ming,Xie, Ling-Peng,Zhang, Wen-Tong,Ming, Zhi,Liu, Bin,Zhou, Ying-Chun The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.2

Background: Oxidative stress-induced cardiomyocytes apoptosis is a key pathological process in ischemic heart disease. Glutathione reductase (GR) reduces glutathione disulfide to glutathione (GSH) to alleviate oxidative stress. Ginsenoside Rb1 (GRb1) prevents the apoptosis of cardiomyocytes; however, the role of GR in this process is unclear. Therefore, the effects of GRb1 on GR were investigated in this study. Methods: The antiapoptotic effects of GRb1 were evaluated in H9C2 cells by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, annexin V/propidium iodide staining, and Western blotting. The antioxidative effects were measured by a reactive oxygen species assay, and GSH levels and GR activity were examined in the presence and absence of the GR inhibitor 1,3-bis-(2-chloroethyl)-1-nitrosourea. Molecular docking and molecular dynamics simulations were used to investigate the binding of GRb1 to GR. The direct influence of GRb1 on GR was confirmed by recombinant human GR protein. Results: GRb1 pretreatment caused dose-dependent inhibition of tert-butyl hydroperoxide-induced cell apoptosis, at a level comparable to that of the positive control N-acetyl-L-cysteine. The binding energy between GRb1 and GR was positive (-6.426 kcal/mol), and the binding was stable. GRb1 significantl reduced reactive oxygen species production and increased GSH level and GR activity without altering GR protein expression in H9C2 cells. Moreover, GRb1 enhanced the recombinant human GR protein activity in vitro, with a half-maximal effective concentration of ≈2.317 μM. Conversely, 1,3-bis-(2-chloroethyl)-1-nitrosourea co-treatment significantly abolished the GRb1's apoptotic and antioxidative effects of GRb1 in H9C2 cells. Conclusion: GRb1 is a potential natural GR agonist that protects against oxidative stress-induced apoptosis of H9C2 cells.