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      • 공연예술시장의 'AIDA'모델에서의 전략분석

        ( Cao Rui ) 인문사회과학예술융합학회 2020 인문사회과학예술융합학회지 Vol.4 No.3

        The AIDA model, also known as the Ida formula, is an important formula in Western salesmanship, as concluded by Heinz M. Goldmann, an international sales expert.It is a law that applies universally and everyone follows; it is a very effective marketing technique.The market of the performing arts is different from that of the general market, the uncertainty of the needs of the viewing and the variety of the viewing motivations determines the decision psychology of the audience.Based on the market of performing arts, this paper presents the stage of desire generation, information search, consumption demand, purchasing decision stage and consumption habit stage, and analyzes the three variables of information source, information mode and media in the information search stage.Through the research of this paper, people need to re-examine the importance of the recipient of the performing arts: consumers (audience), who want to provide a reference for marketing, planning and art management, to understand more about consumers' behavior intention, and to give practical meaning in designing consumer trends and meeting the needs of the arts.

      • KCI등재

        Expression and Preliminary Functional Profiling of the let-7 Family during Porcine Ovary Follicle Atresia

        Cao, Rui,Wu, Wang Jun,Zhou, Xiao Long,Xiao, Peng,Wang, Yi,Liu, Hong Lin Korean Society for Molecular and Cellular Biology 2015 Molecules and cells Vol.38 No.4

        Most follicles in the mammalian ovary undergo atresia. Granulosa cell apoptosis is a hallmark of follicle atresia. Our previous study using a microRNA (miRNA) microarray showed that the let-7 microRNA family was differentially expressed during follicular atresia. However, whether the let-7 miRNA family members are related to porcine (Sus scrofa) ovary follicular apoptosis is unclear. In the current study, real-time quantitative polymerase chain reaction showed that the expression levels of let-7 family members in follicles and granulosa cells were similar to our microarray data, in which miRNAs let-7a, let-7b, let-7c, and let-7i were significantly decreased in early atretic and progressively atretic porcine ovary follicles compared with healthy follicles, while let-7g was highly expressed during follicle atresia. Furthermore, flow cytometric analysis and Hoechst33342 staining demonstrated that let-7g increased the apoptotic rate of cultured granulosa cells. In addition, let-7 target genes were predicted and annotated by TargetScan, PicTar, gene ontology and Kyoto encyclopedia of genes and genomes pathways. Our data provide new insight into the association between the let-7 miRNA family in granulosa cell programmed death.

      • KCI등재

        Expression and Preliminary Functional Profiling of the let-7 Family during Porcine Ovary Follicle Atresia

        Rui Cao,Wang Jun Wu,Xiao Long Zhou,Peng Xiao,Yi Wang,Honglin Liu 한국분자세포생물학회 2015 Molecules and cells Vol.38 No.4

        Most follicles in the mammalian ovary undergo atresia. Granulosa cell apoptosis is a hallmark of follicle atresia. Our previous study using a microRNA (miRNA) microarray showed that the let-7 microRNA family was differentially expressed during follicular atresia. However, whether the let- 7 miRNA family members are related to porcine (Sus scrofa) ovary follicular apoptosis is unclear. In the current study, real-time quantitative polymerase chain reaction showed that the expression levels of let-7 family members in follicles and granulosa cells were similar to our microarray data, in which miRNAs let-7a, let-7b, let-7c, and let-7i were significantly decreased in early atretic and progressively atretic porcine ovary follicles compared with healthy follicles, while let-7g was highly expressed during follicle atresia. Furthermore, flow cytometric analysis and Hoechst33342 staining demonstrated that let-7g increased the apoptotic rate of cultured granulosa cells. In addition, let-7 target genes were predicted and annotated by TargetScan, PicTar, gene ontology and Kyoto encyclopedia of genes and genomes pathways. Our data provide new insight into the association between the let-7 miRNA family in granulosa cell programmed death.

      • KCI등재

        Immunosuppressive Effects of New Cyclolanostane Triterpene Diglycosides from the Aerial Part of Cimicifuga foetida

        Rui-Le Pan,Di-Hua Chen,Jian-Yong Si,Xiao-Hong Zhao,Zhan Li,Li Cao 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.2

        Two new cyclolanostane diglycosides, cimifoetiside A (1) and cimifoetiside B (2), were isolated from an 80% ethanolic extract of the aerial part of Cimicifuga foetida L. (Ranuculaceae). Using spectral data and chemical analysis, the structures of 1 and 2 were identified as (23R, 24S) cimicigenol 3-O-β-D-glucopyranosyl-(1"→3')-β-D-xylopyranoside and (23R, 24S) cimicigenol 3-O-β-D-glucopyranosyl-(1"→2')-β-D-xylopyranoside, respectively. The in vitro immunosuppressive effects of the two new compounds 1 and 2, as well as four other known cyclolanostane saponins 3-6 on T cells were evaluated. All the agents tested effectively inhibited the proliferation of murine splenocytes induced by Concanavalin A (ConA), with IC50 values ranging from 12.7 nM to 33.3 nM.

      • KCI등재

        Influence of Amorphous and Silicon Steel on Performance of Permanent Magnet Synchronous Motors Used in Steering Pump of Electric Vehicles

        Rui-fang Liu,Xin Ma,Jun-ci Cao,Shuang-xia Niu,Zhi-gang Wu 한국자기학회 2019 Journal of Magnetics Vol.24 No.2

        Amorphous materials have the advantages of high permeability and low core losses. Their application in the motor can reduce the energy consumption and improve the efficiency. To investigate the advantage of amorphous materials on the performance of permanent magnet synchronous motors (PMSMs) at lower speed situation, three 1.5 kW motors used in steering pumps of electric vehicles are analyzed and compared. Two prototypes and the experimental platform are built. The experimental results indicate that the efficiency of the PMSM motor with amorphous materials increases by 1.4 % at 1200 rpm, which shows that amorphous materials can also improve the motor performance at lower speed. To further take advantage of amorphous materials, the particle swarm optimization algorithm is used to optimize the dimensions of amorphous motor and the efficiency is increased by 0.54 %.

      • KCI등재

        Study on Enhancing Lightning Protection Scheme of Catenary in Subway Viaduct Section

        Rui-Fang Li,Kui Chen,Li-Sheng Chen,Xiao-Bin Cao,Guang-Ning Wu,Xue-Qin Zhang 대한전기학회 2017 Journal of Electrical Engineering & Technology Vol.12 No.2

        Viaduct increases the height of subway catenary, namely magnifies lightning attraction scope that lead to higher possibility of suffering lightning stroke. Therefore, it is necessary to analyze performance of lightning striking to catenary of subway in viaduct section and propose an improving lightning protection scheme. In this paper, using ATP-EMTP simulation software to establish an associated model to evaluate lightning withstand level of catenary with existing lightning protection schemes including arrester and grounding point, an improving lightning protection scheme is proposed — every pillar ground earth and arresters are installed with some installing spacing between 200m to 400m based on lightning damage degree and reliability requirements — according to analyzing results: while lightning withstand level is lowest for lightning striking to the neutral pillar, lightning withstand level is greatest for lightning striking to the both-ends pillar that arrester and grounding point are both installed; grounding point could obviously improve lightning withstand level for lightning striking to ground wire while arrester could obviously improve the lightning withstand level for lightning striking to catenary; every pillar ground earth could enhance the lowest lightning withstanding level up to 2.5 times than of that pillar ground earth across every 200m.

      • KCI등재

        ORIGINAL ARTICLE : The Research on Lighting Design of Parks

        ( Rui Zhang ),( Yong Ji Piao ),( Lin Sen Cao ),( Tae Dong Cho ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.6

        Based on the survey of the parks in Tai``an by questionnaire survey, on-the-spot investigation and in-depth interview, the paper analyzes the tendencies of visitors in modern landscape lighting design forms and methods from two terms: primary attributes and the preferences of artistic lighting design. To increase the safety of the parks is a pressing need for visitors. Visitors have a pressing need for increasing the safety of the parks`` lighting and artistic quality. Most visitors think the parks`` lighting has blind spots and the brightness is not enough. Visitors’ night activities in the park will be insecure. As to artistry aspects, people prefer strong artistic style of lamps and lanterns to the common, such as ethnic style and animal image; Tourists prefer to use white light and yellow light to illuminate trees, because these colors make people feel more warm and amiable. This research provides basic data for lighting design of parks.

      • KCI등재

        Optimization of APE1547-catalyzed Enantioselective Transesterification of (R/S)-2-methyl-1-butanol in an Ionic Liquid

        Rui Tian,Chun-Hua Yang,Xiao-Fei Wei,Er-Na Xun,Ren Wang,Shu-Gui Cao,Zhi Wang,Lei Wang 한국생물공학회 2011 Biotechnology and Bioprocess Engineering Vol.16 No.2

        Aeropyrum pernix esterase (APE1547) was successfully used to catalyze the enantioselective transesterification of (R/S)-2-methyl-1-butanol in an ionic liquid (IL). Effects of various reaction conditions on the synthetic activity of the enzyme as well as enantioselectivity, including the type of IL, acyl donor, temperature, water activity,and substrate molar ratio were inverstigated. APE1547showed good catalytic performance (activity > 0.8 μmol/min/mg, E > 25), and the enzyme-IL mixture was recycled five times with only a slight decrease in catalytic performance.

      • KCI등재

        Full-phase optimization of PDC bit cutter layout to reduce lateral force based on zoning method

        Tong Cao,Kaian Yu,Xuyue Chen,Hongwu Zhu,Rui Zhang 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.3

        Balancing lateral force is essential to reduce bit vibrations and prolong bit service life. During the process of cutting, the instantaneous cutting situation is governed by the previous blades cutting. This paper introduces a notion called “zoning method” based on the cutting geometry of bit-rock interface, which is dedicated to distinguishing different phases of cutting. Furthermore, a full-phase optimization model is developed to optimize cutter layout for minimizing the lateral force in each cutting phase, the NSGA-II is used to solve for the Paretooptimal solutions, and the fuzzy comprehensive evaluation method is used to select the optimal solution. Finally, a case study of full-phase optimization of PDC bit cutter layout is conducted to highlight the advantage of the zoning method. The case study results show that the lateral force is reduced significantly in each cutting phase by using zoning method, which can help to achieve the real lateral force balance of PDC bit.

      • KCI등재

        Plasma treatment of multi-walled carbon nanotubes for lipase immobilization

        Xun Cao,Rui Zhang,Wei-min Tan,Ce Wei,Jing Wang,Ze-meng Liu,Ke-quan Chen,Ping-Kai Ouyang 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.5

        Plasma-modified multiwalled carbon nanotubes (MWNTs) were used as a support to immobilize lipase. The effects of vacuum plasma treatment power, vacuum plasma treatment time, immobilization temperature, immobilization time, and initial protein concentration of the lipase on the amount of lipase immobilized and on the subsequent activity of the immobilized lipase were investigated. The results showed that the adsorption capacity of the plasma-modified MWNTs could reach 0.15 g/g and that the maximal enzyme activity of the immobilized lipase was 520U/g under optimized conditions. Fourier transform infrared (FTIR) analysis and transmission electron microscopy (TEM) were used to characterize the properties of the plasma-modified MWNTs and plasma-modified MWNTslipase, and the results showed that the lipase was successfully immobilized on the plasma-modified MWNTs. Also, the MWNTs-lipase produced an esterification rate of approximately 47% in the synthesis of polyethylene glycol (PEG)-aliphatic esters.

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