Two New Species of Placolecis (Lichenized Ascomycota) from China

( An Cheng Yin ),( Xin Yu Wang ),( Dong Liu ),( Yan Yun Zhang ),( Mei Xia Yang ),( Li Juan Li ),( Li Song Wang ) 한국균학회 2019 Mycobiology Vol.47 No.4

Two new species of the lichen genus Placolecis are discovered in China, namely P. kunmingensis An. C. Yin & Li S. Wang and P. sublaevis An. C. Yin & Li S. Wang. The new combination P. loekoesiana (S.Y. Kondr., Farkas, J.J. Woo & Hur) An. C. Yin is proposed. Placolecis kunmingensis is characterized by having simple, spherical or ellipsoid, hyaline spores, and pear-shaped pycnidia; while P. sublaevis can be distinguished by its thallus forming larger aggregations with slightly flattened lobes at the thallus margin, and urn-shaped pycnidia. Descriptions, a phylogenetic tree and a key are provided for all the known Placolecis species in China.

The Einstein-K\"ahler metrics onHua domain

An Wang,Weiping Yin 대한수학회 2003 대한수학회지 Vol.40 No.4

In this paper we describe the Einstein-K"ahler metric for theCartan-Hartogs of the first type which is the special case of theHua domains. Firstly, we reduce the Monge-Amp` ere equation forthe metric to an ordinary differential equation in the auxiliaryfunction X=X(z,w)=|w|^2[det(I-ZZ^T)]^{-frac{1}{K}}(see below).This differentialequation can be solved to give an implicit function in X.Secondly, we get the estimate of the holomorphic section curvatureunder the complete Einstein-K"ahler metric on this domain.

Concentration-Controlled and Phytic Acid-Assisted Synthesis of Self-Assembled LiFePO4 as Cathode Materials for Lithium-Ion Battery

Yin Li,Keyu Zhang,Zhengjie Chen,Yunke Wang,Li Wang,Feng Liang,Yaochun Yao 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2020 NANO Vol.15 No.02

The olivine LiFePO4 with various morphologies and different growth lattice planes was prepared by a controllable hydrothermal method with changing precursor concentration and using phytic acid as phosphorus source. The microstructure, crystal orientation and electrochemical performance of the prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM) and charge–discharge tests. The results show that the morphologies of all samples change from spindle-like to hierarchical plate-like and then to long plate-like shape, and the main exposed facets transform from (100) to (001). This indicates that the precursor concentration and phytic acid play important roles in exposing facets and controlling the morphology of LiFePO4. In order to illustrate these phenomena, a reasonable assembly process is provided and the formation is explained. Li ion diffusion coefficient along [100] and [001] directions was calculated by using electrochemical impedance spectroscopy (EIS). The results show that the diffusion coefficient of (100) facet is higher than that of (001) facet, indicating a good electrochemical performance for (100) facet. In addition, the capacity test is carried out, which also confirms the above results. With the precursor concentration of 0.5 M, the obtained LiFePO4 with self-assembled hierarchical structure, smaller size and (100) facet shows the best electrochemical performance: 162.1 mAh/g at 0.1C and 112.4 mAh/g at 10 C. Using phytic acid as phosphorus source and controlling precursor concentration to prepare high performance LiFePO4 open up a new prospect for the production of cathode materials for lithium ion batteries.

Molecular Cloning and Functional Characterization of FOUR LIPS in Pomegranate, a Protein Involved in Regulating the Gravitropic Set-Point Angle of Adventitious Roots

Wang Zenghui,Li Jialin,Wang Chuanzeng,Feng Lijuan,Yin Yanlei 한국식물학회 2022 Journal of Plant Biology Vol.65 No.5

Self-rooted pomegranate seedlings are widely used in the horticultural industry to cut costs and time. However, these seedlings produce shallow roots that exhibit poor cold resistance. Thus, deeper adventitious roots generated through gravitropism are imperative for seedling survival, and understanding the molecular mechanisms of gravitropism can facilitate improved breeding techniques. We hypothesized that gravitropism in pomegranate is partially controlled by pomegranate FOUR LIPS (PgFLP), an R2R3-MYB protein that interacts with and controls the transcriptional expression of PgPIN10, which facilitates transmembrane auxin signaling. We studied subcellular localization of PgFLP, quantified auxin levels, and measured gravitropic set-point angle (GSA) to investigate the underlying mechanisms regulating PgPIN10 expression during the formation of GSA in pomegranate adventitious roots. We found that PgFLP was localized to the nucleus based on use of green florescent proteins, suggesting that this protein is a transcription factor. When using the tractable 35S::PgFLP, we observed stronger gravitational response in overexpression lines leading to a narrower GSA than in the wild-type Arabidopsis, and the expression of PgFLP and PgPIN10 in ‘Lanbaoshi’ (LBS; a deep-rooted cultivar) was higher than that in ‘Taishanhong’ (TSH; a shallow-rooted cultivar), which indicates that PgFLP may participate in regulating the GSA of adventitious roots via PgPIN10 in pomegranate. Taken together, our results indicate that the pomegranate R2R3-MYB transcription factor, PgFLP, plays a vital role in setting the GSA of adventitious roots in this crop species.

Detection of Low Frequency Signals using Interferometric Fiber Sensors based on Phase Generated Carrier Demodulation Technique

Wang Yong-jiao,Wang Chuan,Yuan Yin-quan,Liang Lei 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.2

A fiber-optic sensor is a sensor with high sensitivity, and signal detection technology is one of its key technologies. Phase generated carrier demodulation technology is a homodyne demodulation method widely used for interference fiber-optic sensors. Research reveals that the amplitude of the interference signal and the modulation depth will affect the result of demodulation. The distortion of the demodulated signal can be reduced by the elimination of the effects of the interference signal amplitude and modulation depth. A phase generated carrier demodulation method for interference fiber-optic sensors is proposed to detect weak ELF signals. Theoretical analysis and simulation have been implemented on the demodulation of weak ELF signals using low-level sub-mixer carrier. The results indicate that in the demodulation of weak ELF signals, DC drift occurs in the DCM approach, while the Arctangent approach does not have this problem. Then, an optical fiber sensing system for ELF signals is established based on optical fiber interferometer, indicating the Arctangent approach is able to demodulate the VLF signals accurately.

N6-Methyladenosine modification (m6 A) of circRNA-ZNF638 contributes to the induced activation of SHF stem cells through miR-361-5p/Wnt5a axis in cashmere goats

Yin Ronghuan,Yin Ronglan,Bai Man,Fan Yixing,Wang Zeying,Zhu Yubo,Zhang Qi,Hui Taiyu,Shen Jincheng,Feng Siyu,Bai Wenlin 아세아·태평양축산학회 2023 Animal Bioscience Vol.36 No.4

Objective: The objective of this study was to investigate the effects of N6-Methyladenosine modification-circRNA-zinc finger protein 638 (m6A-circRNA-ZNF638) on the induced activation of secondary hair follicle (SHF) stem cells with its potential mechanisms in cashmere goats. Methods: The m6A modification of ZNF638 was analyzed using methylation immunoprecipitation with real-time quantitative polymerase chain reaction technique in SHF stem cells. The effects of circRNA-ZNF638 on the induced activation of SHF stem cells in m6A dependence were evaluated through the overexpression of circRNA-ZNF638/its m6Adeficient mutants in circRNA-ZNF638 knockdown SHF stem cells. The competitive binding of miR-361-5p to circRNA-ZNF638/Wnt5a 3′- untranslated region was analyzed through Dual-luciferase reporter assay. Results: The m6A-circRNA-ZNF638 had significantly higher transcription at anagen SHF bulge of cashmere goats compared with that at telogen, as well as it positively regulated the induced activation of SHF-stem cells in cashmere goats. Mechanismly, m6A-circRNA-ZNF638 sponged miR-361-5p to heighten the transcriptional expression of Wnt5a gene in SHFstem cells. We further demonstrated that the internal m6A modification within circRNAZNF638 is required for mediating the miR-361-5p/Wnt5a pathway to regulate the induced activation of SHF stem cells through an introducing of m6A-deficient mutant of circRNAZNF638. Conclusion: The circRNA-ZNF638 contributes the proper induced activation of SHF-stem cells in cashmere goats in m6A-dependent manner through miR-361-5p/Wnt5a axis.

First-principles study of nitrogen defect g-C3N4/WS2 heterojunction on photocatalytic activity

Wang Yin,Lei Shulai,Zhang Xin,Zhou Shuxing 한국물리학회 2022 Current Applied Physics Vol.39 No.-

In this work, first-principles density functional theory simulations have been performed to investigate the influence of nitrogen (N) defect on the supercell structure, electronic structure and photocatalytic properties of g-C3N4/WS2 heterojunctions. Analyses of calculated binding energies and the lattice mismatch ratios led us to confirm that N-deficient g-C3N4 and WS2 were in parallel contact and form a stable heterojunction. Furthermore, the work functions, molecular dynamics simulations, charge density differences, band structures, DOS, electronic and optical properties and absorption spectra of different g-C3N4/WS2 heterojunctions have been analyzed in detail. It is revealed that the compositing of N-deficient g-C3N4 with WS2 improves the separation of photoinduced electron-hole pairs. N-defect enhances the visible light absorption of the heterojunction, due to the introduction of impurity energy levels. Moreover, the introduction of defect species further improves the photocatalytic performance of g-C3N4/WS2 heterojunction in the visible region.

V-life의 시각적 인지 반응이 팬 행동 의도에 미치는 영향에 관한 연구

Yin Shuo Han,Wang Jin Nan,Wang Cheng Hao 사단법인 한국융합기술연구학회 2023 아시아태평양융합연구교류논문지 Vol.9 No.4

This study focuses on the influence of V-life's visual cognitive response on fans' behavioral intention. Recently, a variety show called 2060, featuring an original virtual idol, caused a heated debate in China. The show gave these digital human the concept of " V-life(virtual life)". According to the results of the market survey, fans pay as much as 72.8% attention to the visual design of digital human. It can be inferred that the visual cognitive response of V-life will play an important role in the behavioral intention of fans. This study verified this influence path through a questionnaire survey and structural equation model analysis. The results show that, in the visual cognitive response of V-life, discomfort has a significant negative impact on verisimilitude and physical attractiveness. Following this, verisimilitude will have a positive impact on authenticity through social presence, while authenticity through social attractiveness will be positively influenced through physical attractiveness. Lastly, the authenticity of V-life will have a positive impact on the relationship maintenance intention, and will further have a positive impact on the product purchase intention through the relationship maintenance intention. Future research will continue to expand the findings to more fan groups and media types. 본 연구는 V-life의 시각적 인지 반응이 팬 행동 의도에 미치는 영향에 관한 연구이다. 본 연구는 주로 V-life의 시각적 인지 반응이 팬들의 행동 의도에 미치는 영향에 대해 탐구하고 있다. 이를 위해 최근 디지털 휴먼에게 V-life(가상 아이돌)라는 개념을 부여하는 데 지대한 역할을 한 '2060'이라는 예능 프로그램을 예시로써 소개하고 있다. 해당 프로그램은 예능에서 오리지널 디지털 휴먼을 처음 등장시켜 중국에서 뜨거운 논쟁과 신선한 바람을 가져왔다. 시장조사에 따르면 팬들의 관심 중 72.8%가 가상 아이돌의 외형 디자인에 집중되어 있음을 알 수 있다. 그렇기에 가상 아이돌인 V-life에 대한 시각적 인지 반응이 팬들의 행동 의도에 유의미한 영향을 미칠 것으로 가정할 수 있다. 본 연구는 설문조사 및 구조 방정식 모델의 분석 결과를 통해 해당 가설의 영향 경로를 확인했다. 연구 결과에 따르면 V-life의 시각적 인지 반응의 불편함(부조화)은 사실감과 신체적 매력에 부정적인 영향을 미치는 것을 알 수 있었으며 사실감은 사회적 실재감을 통해, 신체적 매력은 사회적 매력을 통해 진정성에 긍정적인 영향을 미치는 것으로 나타났다. 마지막으로 V-life의 진정성은 관계 유지 의도를 통해 제품 구매 의도에 더욱 긍정적인 영향을 미칠 수 있을 것으로 추정된다. 해당 연구 결과는 더 많은 팬 그룹 및 미디어 유형에 관한 후속 연구로 확대될 것으로 기대된다.

Preparation of Selenium-enriched Bifidobacterium Longum and its Effect on Tumor Growth and Immune Function of Tumor-Bearing Mice

Yin, Yan,Wang, Rong-Rong,Wang, Yan,Wang, Jian-Jun,Xu, Gen-Xing Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.8

In this study, we demonstrated selenium (Se) accumulation in Bifidobacterium longum strain (B. longum) and evaluated the effect of Se-enriched B. longum (Se-B. longum) on tumor growth and immune function in tumor-bearing mice. Analysis using high-performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS) revealed that more than 99% of Se in Se-B. longum was organic, the main component of which was selenomethionine (SeMet). In the in vivo experiments, tumor-bearing mice (n=8) were orally administrated with different doses of Se-B. longum alone or combined with cyclophosphamide (CTX). The results showed that the middle and high dose of Se-B. longum significantly inhibited tumor growth. When Se-B. longum and CTX were combined, the antitumor effect was significantly enhanced and the survival time of tumor-bearing mice (n=12) was prolonged. Furthermore, compared with CTX alone, the combination of Se-B. longum and CTX stimulated the activity of natural killer (NK) cells and T lymphocytes, increasing the levels of interleukin-2 (IL-2) and tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), and the leukocyte count of H22 tumor-bearing mice (n=12).

Expression and Effects of JMJD2A Histone Demethylase in Endometrial Carcinoma

Wang, Hong-Li,Liu, Mei-Mei,Ma, Xin,Fang, Lei,Zhang, Zong-Feng,Song, Tie-Fang,Gao, Jia-Yin,Kuang, Ye,Jiang, Jing,Li, Lin,Wang, Yang-Yang,Li, Pei-Ling Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7

Previous studies have demonstrated that JMJD2A is a potential oncogene and is overexpressed in human tumors. However, its role in the endometrial carcinoma remains largely unknown. In this study, we discovered that JMJD2A was overexpressed in endometrial carcinoma, using immunohistochemistry, quantitative realtime polymerase chain reaction, and western blotting. Downregulation of JMJD2A led to reduced endometrial carcinoma RL95-2 and ISK cell proliferation, invasion and metastasis as asessed with cell counting kit-8, cell migration and invasive assays. Collectively, our results support that JMJD2A is a promoter of endometrial carcinoma cell proliferation and survival, and is a potential novel drug target.