http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Weidong Zhang,Jie Chen,Huijuan Zhang,Fengming Song 한국분자세포생물학회 2008 Molecules and cells Vol.26 No.3
A rice diacylglycerol kinase (DGK) gene, OsBIDK1, which encodes a 499-amino acid protein, was cloned and characterized. OsBIDK1 contains a conserved DGK domain, consisting of a diacylglycerol kinase catalytic subdomain and a diacylglycerol kinase accessory subdomain. Expression of OsBIDK1 in rice seedlings was induced by treatment with benzothiadiazole (BTH), a chemical activator of the plant defense response, and by infection with Magnaporthe grisea, causal agent of blast disease. In BTH-treated rice seedlings, expression of OsBIDK1 was induced earlier and at a higher level than in water-treated control seedlings after inoculation with M. grisea. Transgenic tobacco plants that constitutively express the OsBIDK1 gene were generated and disease resistance assays showed that overexpression of OsBIDK1 in transgenic tobacco plants resulted in enhanced resistance against infection by tobacco mosaic virus and Phytophthora parasitica var. nicotianae. These results suggest that OsBIDK1 may play a role in disease resistance responses.
Postbuckling and nonlinear vibration of composite laminated trapezoidal plates
Guoqing Jiang,Fengming Li,Chuanzeng Zhang 국제구조공학회 2018 Steel and Composite Structures, An International J Vol.26 No.1
The thermal effects on the buckling, postbuckling and nonlinear vibration behaviors of composite laminated trapezoidal plates are studied. Aiming at the complex plate structure and to simulate the temperature distribution of the plate, a finite element method (FEM) is applied in this paper. In the temperature model, based on the thermal diffusion equation, the Galerkin’s method is employed to establish the temperature equation of the composite laminated trapezoidal plate. The geometrical nonlinearity of the plate is considered by using the von Karman large deformation theory, and combining the thermal model and aeroelastic model, Hamilton’s principle is employed to establish the thermoelastic equation of motion of the composite laminated trapezoidal plate. The thermal buckling and postbuckling of the composite laminated rectangular plate are analyzed to verify the validity and correctness of the present methodology by comparing with the results reported in the literature. Moreover, the effects of the temperature with the ply-angle on the thermal buckling and postbuckling of the composite laminated trapezoidal plates are studied, the thermal effects on the nonlinear vibration behaviors of the composite laminated trapezoidal plates are discussed, and the frequency-response curves are also presented for the different temperatures and ply angles.
Contrastive Analysis on Network Performance of Information System
Lifeng Jiang,Fengming Zhang,Rennong Yang,Kun Xu 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.7
In order to explore how to design an information system with ideal network property under the background of information era, contrastive analysis is conducted in this paper on the performances of “tree” network and fully connected network. The mathematical models of “tree” information system and fully connected network are established, of which the network performance indicators are calculated by complex network theory and analyzed by comparison. As only partial indicators of both networks are favorable, the plan is proposed that information system is established through optimization based on both of the two network structures. The new algorithm to build information system network model proposed in this paper and the plan that information system is established are of significant reference value for relevant fields.
The Effect of Melatonin on Mitochondrial Function in Endotoxemia Induced by Lipopolysaccharide
Liu, Jing,Wu, Fengming,Liu, Yuqing,Zhang, Tao,Tang, Zhaoxin Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.6
This study examined the metabolism of free radicals in hepatic mitochondria of goats induced by lipopolysaccharide (LPS), and investigated the effects of melatonin (MT). Forty-eight healthy goats ($10{\pm}1.2\;kg$) were randomly selected and divided into four groups: saline control, LPS, MT+LPS and MT. The goats within each group were3 sacrificed either 3 or 6 h after treatment and the livers removed to isolate mitochondria. The respiration control ratio (RCR), the ADP:O ratio, the oxidative phosphorylation ratio (OPR), the concentration of $H_2O_2$ and the activities of Complex I-IV were determined. The mitochondrial membrane potential ($\Delta\psi_m$) was analyzed by flow cytometry. The results showed that RCR, O/P and OPR of the LPS group decreased (p<0.05), as well as activities of respiratory complexes, whereas the generation of $H_2O_2$ in Complex III increased (p<0.05) after 3 h, while Complex II and III increased after 6 h. Also, it was found that the mitochondrial membrane potential of the LPS group declined (p<0.05). However, pre-treatment with MT attenuated the injury induced by LPS, which not only presented higher (p<0.05) RCR, O/P, OPR, and respiratory complex activities, but also maintained the $\Delta\psi_m$. Interestingly, it is revealed that, in the MT+LPS group, the generation of $H_2O_2$ increased firstly in 3 h, and then significantly (p<0.05).decreased after 6 h. In the MT group, the function of mitochondria, the transmenbrane potential and the generation of $H_2O_2$ were obviously improved compared to the control group. Conclusion: melatonin prevents damage caused by LPS on hepatic mitochondria of goats.
신뢰도 측면에서 수요관리를 고려한 웹기반 온라인 실시간 전력계통의 신뢰도 정보 시스템
조경희(Kyeonghee Cho),장펑밍(Fengming Zhang),오태곤(Taegon Oh),임진택(JinTaek Lim),최재석(Jaeseok Choi),송태호(Taeho Song) 대한전기학회 2011 대한전기학회 학술대회 논문집 Vol.2011 No.10
In recent years, the utilization of renewable resources has been receiving considering attention. Therefore the information system requirement is increased. Web based online real-time reliability integrated information system(WORRIS) considering wind turbine generators is asked rapidly for more efficiency. Specially, the reliability information system is more important for implementing the smart grid. This paper proposes WORRIS-II considering demand side management in view point of reliability.
Evaluation of the Immunomodulatory and Anti-inflammatory Activities of Honey Bee Larva Powder
Kejuan Li,Shuang Sun,Masakatsu Kageyama,Long Xiao,Guoqing Xing,Ran Gao,Fengming You,Xi Fu,Zhenya Zhang 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.7
Honey bee larva powder (HLP) has traditionally been used as a daily supplement and tonic for health promotion with an uncertain scientific basis. In this study, B16-F10 tumor-bearing mice were established to evaluate the immunomodulatory activity of HLP. The proliferation and apoptosis assays were performed to evaluate the anti-inflammatory activity of honey bee larva extract (HLE) in RAW 264.7 macrophage. The in vivo experimental results demonstrated that the oral administration of freeze-dried HLP (4 and 6 g/kg) significantly enhanced the spleen index, the percentage of CD4+cells, and the ratio of CD4+ and CD8+ T lymphocytes (CD4+/CD8+) in the peripheral blood compared with those in the tumor control mice. The in vitro studies demonstrated the potent immunomodulatory activities of HLE through the induction of RAW 264.7 macrophage proliferation and the mitigation of doxorubicin (DOX)-induced toxicity. HLE also exhibits anti-inflammatory activity by decreasing the production of nitric oxide (NO) and the cytokine level of interleukin-6 (IL-6) in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage. The present study provides important scientific evidence for the immunomodulatory and anti-inflammatory activities of HLP and HLE.
A Study on Grid Expansion Planning of Power System Including Wind Turbine Generator
Kyeonghee Cho(조경희),Jeongje Park(박정제),Taegon Oh(오태곤),Fengming Zhang(장펑밍),Jaeseok Choi(최재석),Hongseok Choi(최홍석) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.11
This paper describes a new methodology for grid expansion planning considering the probabilistic reliability of a composite power system including wind turbine generators(WTG). The proposed model includes capacity limitations and transmission line unavailability. Wind energy is one of the most successfully utilized such source in producing electrical energy. The random nature of wind speed can be incorporated in the evaluation by representing the WTG as a multi-state model. This type of model comes from a nodal equivalent load duration curve based on a nodal effective load model developed in recent years. The characteristics and effectiveness of this simulation model are illustrated by several case studies using a test system.
Xiang Yaoxian,Dai Junxi,Li Yao,You Zongqi,Zhang Junpeng,Huang Xinying,Nie Shuqi,Chen Yujie,Xu Lei,Liu Fengming,Jiang Junjian,Xu Jianguang 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-
Neutrophils are the earliest master inflammatory regulator cells recruited to target tissues after direct infection or injury. Although inflammatory factors are present in muscle that has been indirectly disturbed by peripheral nerve injury, whether neutrophils are present and play a role in the associated inflammatory process remains unclear. Here, intravital imaging analysis using spinning-disk confocal intravital microscopy was employed to dynamically identify neutrophils in denervated muscle. Slice digital scanning and 3D-view reconstruction analyses demonstrated that neutrophils escape from vessels and migrate into denervated muscle tissue. Analyses using reactive oxygen species (ROS) inhibitors and flow cytometry demonstrated that enhanced ROS activate neutrophils after denervation. Transcriptome analysis revealed that the vast majority of neutrophils in denervated muscle were of the CXCR2 subtype and were recruited by CXCL1. Most of these cells gradually disappeared within 1 week via P53-mediated apoptosis. Experiments using specific blockers confirmed that neutrophils slow the process of denervated muscle atrophy. Collectively, these results indicate that activated neutrophils are recruited via chemotaxis to muscle tissue that has been indirectly damaged by denervation, where they function in delaying atrophy.