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Guo-Hu Chen,Wenyan Wang,Li-Fei Yang,Jun-Yi Gai,Yue-Lin Zhu 한국원예학회 2014 Horticulture, Environment, and Biotechnology Vol.55 No.3
Soil salinity is the primary limiting factor affecting the growth and production of vegetable soybean[Glycine max (L.) Merrill] worldwide. Plants can survive in salinity conditions through the mechanism of sodium ion(Na+) compartmentalization, during which the vacuolar Na+/H+ antiporter (NHX) genes play a critical role. In the presentstudy, a novel vacuolar NHX gene from Solanum torvum Swartz ‘Torvum Vigor’ (StNHX1; GenBank accessionnumber: JN606860.1) was isolated and transferred into the vegetable soybean ‘Xinliaoxian’ through an Agrobacteriummediatedprotocol. The PCR and southern blot analyses confirmed the successful integration of the exogenous genes. The GUS assay and semi-quantitative RT-PCR analysis showed that the alien genes were inherited by the progeniesand that the StNHX1 gene was overexpressed in the T3 generation. The overexpression of this gene conferred hightolerance to salt stress. Under 100 mM NaCl conditions, the scorch scores and the Na+ and malondialdehyde (MDA)contents of the leaves of the transgenic lines were significantly lower as compared with the wild-type (WT) plants,while the K+/Na+ ratio, the contents of K+, relative chlorophyll and relative water, and some morphological traits of thetransgenic plants were significantly higher than those of the WT. These results indicate that the overexpression ofStNHX1 enhances the salt tolerance of vegetable soybean and that StNHX1 is one of the promising target genes thatcan be manipulated to improve the salinity tolerance of crops.
PLCE1 Gene in Esophageal Cancer and Interaction with Environmental Factors
Guo, Li-Yan,Zhang, Shen,Suo, Zhen,Yang, Chang-Shuang,Zhao, Xia,Zhang, Guo-An,Hu, Die,Ji, Xing-Zhao,Zhai, Min Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.7
Objective: To study the PLCE1 gene rs2274223 polymorphism with regard to esophageal cancer and its interaction with diet, lifestyle, psychological and environmental factors in Southwest Shandong province. Materials and Methods: A case series study (case-case) was conducted. Questionnaire data were collected and 3 ml-5ml venous blood was drawn for DNA extraction among the qualified research subjects. PLCE1 gene polymorphism was detected after PCR amplification of DNA. SPSS 13.0 software was used for statistical analysis of the data. Results: The three genotypes A/A, A/G and G/G PLCE1 gene rs2274223 was 31, 16 and 4 cases, accounting for 60.8%, 31.4%, 0.08% respectively. The difference of three genotypes (AA/GA/GG) proportion between negative and positive family history of patients was statistically significant, ${\chi}^2=6.213$, p=0.045. There was no statistically significant relationship between PLCE1 gene rs2274223 polymorphism and smoking, drinking, ${\chi}^2=0.119$, p=0.998, and ${\chi}^2=1.727$, p=0.786. There was no linkage of the three rs2274223 PLCE1 gene genotypes (AA/GA/GG) proportion with eating fried, pickled, hot, mildew, overnight, smoked, excitant food, eat speed, salt taste or not (p>0.05). or with living environment pollution and nine risk factors of occupational exposure (p>0.05). There was no statistically significant difference in TS scores between different genotype of rs2274223 PLCE1 gene. Conclusions: The PLCE1 rs2274223 polymorphism has a relationship with family history of esophageal cancer, but does not have any significant association with age, gender, smoking, alcohol drinking, food hygiene, eating habits, living around the environment and occupation in cases.
Hu, Wei-Guo,Hu, Jia-Jia,Cai, Wei,Zheng, Min-Hua,Zang, Lu,Wang, Zheng-Ting,Zhu, Zheng-Gang Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.5
The association between the NAD(P)H:quinone oxidoreductase 1 (NQO1) gene C609T polymorphism (rs1800566) and gastric cancer has been widely evaluated, but a definitive answer is so far lacking. We first conducted a case-control study to assess this association in a large Han Chinese population, and then performed a meta-analysis to further address this issue. Although our case-control association study indicated no significant difference in the genotype and allele distributions of C609T polymorphism between gastric cancer patients and controls, in the meta analysis involving 4,000 subjects, comparison of alleles 609T and 609C indicated a significantly increased risk (46%) for gastric cancer (95% confidence interval (95%CI) for odds ratio (OR)=1.20-1.79) in individuals with the T allele. The tendency was similar to the homozygote (OR=1.81, 95%CI: 1.16-2.84), dominant models (OR=1.41, 95%CI: 1.12-1.79), as well as recessive model (OR=1.58, 95%CI: 1.06-2.35). Stratified analysis by study design demonstrated stronger associations in population-based than in hospital-based studies. And ethnicity-based analysis demonstrated a significant association in Asians. We conclude that the NQO1 gene C609T polymorphism increases the risk for gastric cancer, especially in Asian populations.
STABILITY AND BIFURCATION ANALYSIS FOR A TWO-COMPETITOR/ONE-PREY SYSTEM WITH TWO DELAYS
Guo-Hu Cui,Xiang-Ping Yan 대한수학회 2011 대한수학회지 Vol.48 No.6
The present paper is concerned with a two-competitor/one-prey population system with Holling type-II functional response and two discrete delays. By linearizing the system at the positive equilibrium and analyzing the associated characteristic equation, the asymptotic stability of the positive equilibrium and existence of local Hopf bifurcations are investigated. Particularly, by applying the normal form theory and the center manifold reduction for functional differential equations (FDEs),explicit formulae determining the direction of bifurcations and the sta-bility of bifurcating periodic solutions are derived. Finally, to verify our theoretical predictions, some numerical simulations are also included at the end of this paper.
Hu Yang,Jing Lv,Chaohui Guo 한국통계학회 2015 Journal of the Korean Statistical Society Vol.44 No.1
In this paper, we propose a data-driven penalized weighted composite quantile regressionestimation for varying coefficient models with heteroscedasticity, which results in sparseand robust estimators simultaneously. With local weighted composite quantile regressionsmoothing and adaptive group LASSO, the new method can identify the true model andestimate the coefficient functions and heteroscedasticity simultaneously. The resultingestimators can be as efficient as the oracle estimators by using the SIC criterion to selectthe tuning parameters. In addition, we revise a mistake of Theorem 2 in Guo, Tian, andZhu (2012). The finite sample performance of the newly proposed method is investigatedthrough simulation studies and a real data example.
Two New Phenolic Compounds from the Fruiting Bodies of Ganoderma tropicum
Hu, Li-Li,Ma, Qing-Yun,Huang, Sheng-Zhuo,Guo, Zhi-Kai,Guo, Jian-Chun,Dai, Hao-Fu,Zhao, You-Xing Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.3
Chemical investigation of the fruiting bodies of Ganoderma tropicum led to the isolation of two new phenolic compounds, ganodermatropins A (1) and B (2). Their structures were elucidated by spectroscopic techniques (MS, 1D and 2D NMR). Ganodermatropin A exhibited antimicrobial activity against Staphylococcus aureus.
3D 애니메이션 영상 캐릭터의 색채 사용 특징에 관한 연구 : 픽사 장편 애니메이션 <인크레더블>, <인크레더블 2>의 ‘히어로 가족’을 중심으로
호국봉 (Hu, Guo Feng),장청건 (Jang, Chung Gun) 한국디자인리서치학회 2020 한국디자인리서치 Vol.5 No.3
영상 화면에서 시각적으로 가장 쉽게 주의를 끄는 요소가 바로 색채임에도 불구하고 캐릭터의 색채는 종종 쉽게 간과된다. 그러나 픽사(Pixar)는 뛰어난 색채 사용으로 관객의 정서를 움직였고, 본고는 픽사 애니메이션 스튜디오(Pixar Animation Studio)의 흥행작이자 오스카 ‘최고 장편 애니메이션상’ 수상작인 3D 장편 애니메이션인 <인크레더블>, <인크레더블 2>를 연구 대상으로 하여 작품 속 ‘히어로 가족(The Parr Family)’ 캐릭터의 색채 지정(color key)을 분석 및 연구한다. 본 연구는 색채심리학을 이론적 기초로 하여 I.R.I 색채 이미지 스케일을 토대로 ‘히어로 가족’ 캐릭터의 색상(hue), 명도(brightness), 순도(saturation), 톤(tone) 등 측면의 색채 지정을 비교적 포괄적으로 분석하였으며 색채 스케일 방식을 통해 ‘히어로 가족’ 캐릭터의 색채 사용 특징을 종합하여 결론을 도출하였다. 본 연구가 애니메이션 업계 종사자 및 학습자의 애니메이션 캐릭터 색채 지정에 조금이나마 도움이 되길 바란다. The color is the easiest to attract visual attention in the image, while the character s color is most likely to be ignored. This paper analyzes and studies the color key of the hero family characters in the Oscar best 3D animation features film The Incredibles and Incredibles 2 due to the character s color is well versed to mobilize emotions. Based on the theory of color psychology and the standard of I .R .I color image scale, this study comprehensively analyzes the color designation of hero family characters in terms of hue, lightness, purity, and tone, and sums up the characteristic color usage of hero family characters by color scale. We hoped that this study could provide some reference to animation practitioners or learners in the color assignment of animation characters.
Development of a position sensitive CsI(Tl) crystal array
Shi, Guo-Zhu,Chen, Ruo-Fu,Chen, Kun,Shen, Ai-Hua,Zhang, Xiu-Ling,Chen, Jin-Da,Du, Cheng-Ming,Hu, Zheng-Guo,Fan, Guang-Wei Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.4
A position-sensitive CsI(Tl) crystal array coupled with the multi-anode position sensitive photomultiplier tube (PS-PMT), Hamamatsu H8500C, has been developed at the Institute of Modern Physics. An effective, fast, and economical readout circuit based on discretized positioning circuit (DPC) bridge was designed for the 64-channel multi-anode flat panel PSPMT. The horizontal and vertical position resolutions are 0.58 mm and 0.63 mm respectively for the 1.0 × 1.0 × 5.0 ㎣ CsI(Tl) array, and the horizontal and vertical position resolutions are 0.86 mm and 0.80 mm respectively for the 2.0 × 2.0 × 10.0 ㎣ CsI(Tl) array. These results show that the CsI(Tl) crystal array with low cost could be applied in the fields of medical imaging and high-resolution gamma camera.
Baocheng Guo,Rong Guo,Hengzai Hu,Jianping Shi,Chunmei Feng 한국자기학회 2022 Journal of Magnetics Vol.27 No.1
A simple and improved analytical model (AM) for linear permanent magnet synchronous machine (LPMSM) based on the correction factor is presented in this paper. A slotless linear permanent magnet machine (PLPM) with AM developed in Cartesian coordinate is selected to investigate. Consequently, the fitting equations of curvature factors for the permanent magnet and armature are obtained. The subdomains for LPMSM are simplified from 6 down to 3 domains based on curvature equations. The magnetic flux density and force show that the proposed approach agrees with the finite element (FE) model. Moreover, the reduced calculation domains and harmonic orders make AM proposed in the paper much faster. The main contribution of the work is to present a simple strategy for coordinate transformation and calculation strategy for LPMSM, which provides guideline for designers to investigate the machines developed in Cartesian coordinate.