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        검색결과 44

        21.
        2016.12 구독 인증기관 무료, 개인회원 유료
        The study concentrates on the status of ecological environment development in Shenyang, uses the remote sensing images and social statistics in different periods as the data base, establishes a dynamic monitoring system and model of urbanization and ecological security. Through the identification and quantitative analysis of ecological security dynamic monitoring information, with the support of spatial information technology, we have formed a key technology system which combines ecological security warning with ecological security structure optimization. Moreover, the spatial database of ecological key elements in Shenyang city was constructed. The vertical pattern, horizontal pattern and ecological function of urban ecological system is organically combined, which provides the basic data for the layout and regulation of green space and water system. With these efforts, a key technology system is formed, including the warning of urban ecological security- the space regulation of economic development- the optimization of urban ecological security pattern - the regulation of urban elements' spatial layout. The research results provide scientific and accurate data base for ecological planning and regulation in Shenyang City , carry out effective ecological security monitoring and management for the development of Shenyang, protect the ecological integrity of the system as well as the healthy development of the economy in Shenyang City during the urbanization process .
        4,000원
        22.
        2016.07 구독 인증기관·개인회원 무료
        One of the top tourist destinations in Korea during 2014 was Dongdaemun market, which is a representative traditional market that provides reasonably priced, fashionable products. Already constituting 43.1% of Korea’s foreign tourists, the number of Chinese tourists is expected to reach 14.88 million by 2020 at an average annual growth rate of 19.8%. The most important way to improve customer equity is by understanding a store’s attributes, so this study aims to investigate the effects of Dongdaemun fashion market’s store attributes on customer equity. A survey was conducted among Chinese tourists and structural equation modeling were used to test the hypotheses. The main findings of this study are: Store attributes appear to have an impact on all of the three drivers of customer equity. Value equity has a positive impact on the customer lifetime value (CLV). Also, brand equity and relationship equity were identified as having positive impacts on revisiting intention, regardless of the type of shopping mall. Based on these findings, we discuss implications for developing the customer equity of Dongdaemun’s traditional markets.
        23.
        2015.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Compared with traditional analog system, the Chinese VLBI Data Acquisition System (CDAS) is a digital one with better bandpass and wider bandwidth which allow weaker sources to be detected and measured by VLBI techniques. After optimizing and verifying the performance of CDAS in wide bandwidth observing mode, we performed an experiment by observing 85 weak sources along the ecliptic with Chinese VLBI stations located at Shanghai, Kunming and Urumqi. The capability of CDAS has been demonstrated for the detection of weak sources with improved sensitivity.
        3,000원
        24.
        2014.12 구독 인증기관 무료, 개인회원 유료
        Along with the drastic competition among ports, the strive for the vast economic hinterland and the supply of goods have become strategic problems for port operators. At the same time, port enterprises are paying more and more attention to the construction of dry ports. This article establishes the port cooperation performance evaluation index based on the balanced score card method and uses the grey relational degree method to evaluate the cooperation performance between seaports and dry ports. Finally using Qingdao port and Xi'an port as an example, and Zhengzhou port and Lanzhou port as benchmarks, the application of this evaluation method is introduced in detail. The conclusion reveals that cooperation between Qingdao port and Xi'an port has deficiencies in customer satisfaction, financial cooperation and non-market tools. Alongside this, the author proposes related issues about information management in the supply chain, competition position and the scope of hinterland. This article, combined with the related theory of supply chain and performance evaluation, puts forward a set of relatively complete cooperation performance evaluations between seaports and dry ports, which provide scientific theory support for better cooperation.
        4,200원
        25.
        2012.06 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        Using the volume-limited Main galaxy sample constructed from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), we explore the environmental dependence of the fraction of ‘unconventional’ galaxies: luminous blue and faint red. It is found that the fraction of faint red increases apparently with increasing local density, and the fraction of luminous blue declines substantially with increasing local density, which shows that there is an environmental dependence for color beyond that for luminosity.
        4,000원
        27.
        2007.10 KCI 등재 구독 인증기관·개인회원 무료
        The diffe rentiation of osteoblasts from mesenchymal precursors requires a series of cell fa te decis ions controlled by a hi erarchy of transcription factors Among these are RUNX2, osterix (OSX) , ATF4 and a la rge number of nuclear co-regulators. During bone development, initial RUNX2 expression coincides with the formation of mesenchyma l con densations well before the branching of chondrogenic and osteogenic lineages. Runx2 is s ubject to a number 0 1' post - tran scriptional controls including regulation by nuclear accessory factors such as ATF4 and DLX5 and post-trans lational mod ificati on, especially phosphOl‘ylation. We previously showed that Runx2-dependent transcription is acti vated by the ex tracellular signal-regulated/MAP kinase pathway in response to ECM/integrin and FGF2 stimulation. To identify and a5sess the function of ERK/MAPK phosphorylation s ites in RUNX2 and esta bli sh the role of MAPK s ignaling in bone fo 1'mation Approaches: A deletion/mutagenesis approach wa5 used to ide ntify 1'egions 0 1' RUNX2 necessary fo1' MAPK responsiveness and phosphorylation. To evaluate the in vivo function of the ERK/MAPK pa thway‘ transgen ic mice were developed wi th osteoblast- specific expression of either dominant-negative 0 1' cons titutively-active MEKl in osteoblasts and crossed with Runx2 heterozygous-• null ammals RUNX2 is phosphorylated on two critical serine res idues in the P/S/T domain. RUNX2 conta ining S/A mutations in these sites is refractory to MAPK stimula ti on while S/E muta tions cause cons titutive activation MAPK activation of RUNX2 was also found to occur in vivo 까'a n sge ni c expression of cons titutively ac tive MEKl in osteo • blas ts accelerated skeletal development while a dominant-negati ve MEKl reta rd ed bone formation in a RUNX2- dependent manner As shown by these studies‘ the ERK/MAPK pathway controls Runx2 tra nscript iona l activ ity by phosphorylation at specific serine residues. This may be a major pathway for controlling osteoblast activity in response to extracellul ar matrix signals. mechanical loads and hormonal stimulation
        28.
        2006.12 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        6,000원
        29.
        2006.09 구독 인증기관·개인회원 무료
        Alumina microcomponents have distinguishing advantages over Si counterpart. However, the shrinkage of alumina, as high as 20%, makes it difficult to produce precision components meeting a high tolerance. A new fabrication process presented to greatly reduce the shrinkage by producing alumina microcomponents from ultrafine Al powder. The process consists of forming Al powder components through sintering and turning the Al powder component into alumina. In this way, the shrinkage occurring in sintering the Al powder component will be compensated by the expansion appearing when the Al powder component turns into alumina. The process has proven successful.
        30.
        2006.09 구독 인증기관·개인회원 무료
        A new method has been developed to fabricate microcomponents by a combination of photolithography and sintering of metallic powder mixtures, without the need for compression and the addition of Mg. This involves (1) the fabrication of a micromould, (2) mould filling of the powder/binder mixture, (3) debinding and (3) sintering. The starting powdered materials consisted of a mixture of aluminium powder(average size of 2.5 um) and alloying elemental powder of Cu and Sn(less than 70nm), at appropriate proportions to achieve nominal compositions of Al-6wt%Cu, Al-6wt%Cu-3wt%Sn. This paper presents detailed investigation of debinding behaviour and microstructural development.
        31.
        2006.04 구독 인증기관·개인회원 무료
        This is about the effects deoxidization, carbonization and alloying preparation on fine grain W, WC, and grade YG8 powder reduced by "yellow tungsten oxide" and "blue tungsten oxide". The result indicates that yellow tungsten has single composition and blue tungsten oxide has complex composition. With this feature, yellow tungsten oxide got better uniformity and concentration distribution on fine particle size W and WC powder than blue tungsten oxide's. The grade alloy YG8 that made of this W or WC powder has uniform alloy construction, concentrated WC grain distribution and better alloy properties.
        32.
        2006.04 구독 인증기관·개인회원 무료
        The deformation behavior under three-point bend test was found to depend on the loading uniformity and the macrostructure for SiC reticulated porous ceramics (RPCs). However, this dependence of loading uniformity is alleviated by improved macrostructure with fewer flaws and clogged pores. Even, this dependence becomes less important as the struts become thicker and stronger. The bend result of RPCs with highly uniform macrostructure is in excellent agreement with the GA (Gibson and Ashby) model, but the one with un-uniform macrostructure deviates from the GA model, suggesting that the macrostructure plays an important role in deformation behavior of RPCs under bend.
        33.
        2006.04 구독 인증기관·개인회원 무료
        With the onging trend of weight saving in automobiles, the application of light alloys is increasing. Recently, aluminum powder metallurgy has been the subject of renewed attention due to the combination of lightweight of aluminium and the efficient material utilisation of the powder metallurgical process, which offer attractive benefits to potential end-users. This study is to explore the use of warm compaction process to aluminium powder metallurgy. This paper presents a detailed study of the effect of warm compression and sintering conditions on the resultant microstructures and mechanical properties of Al-Cu-Mg-Si PM blend.
        35.
        1996.12 KCI 등재 SCOPUS 구독 인증기관·개인회원 무료
        36.
        2022.02 서비스 종료(열람 제한)
        Bong Joon-ho’s films have a unique narrative style and profound philosophy, and have repeatedly broken box office records with high commercial value, and are deeply recognized by the world film industry and loved by audiences. This article analyzes and summarizes Bong Joon-ho’s films, discusses the creative style and thematic connotation of Bong Joon-ho films, experiences the aesthetic style of “genre narrative strategy” and “problem awareness” of Bong Joon-ho films, and thinks about the trade-off techniques behind Bong Joon-ho’s high box office and high reputation, as well as the film development model.
        37.
        2022.02 서비스 종료(열람 제한)
        Purpose- This paper aims to examines the various factors Influencing Sales of Infant Formula Milk in China under the Covid-19 Pandemic, and base on this analysis, to present some measures for the sellers and consumers. Design/methodology- The 846 number of comments for 84 bands form e-commerce platform was taken as the index reflecting consumers’ purchasing behavior, and the properties of various types of infant formula milk (commodity name, gross weight and milk source) were taken as the independent variables to analyze the influencing factors of purchasing behavior of infant formula milk by multiple regression method. Findings- The important factors influencing the purchase behavior of infant formula milk are that product name, source of milk, domestic or imported products, applicable age, and packing unit. And then Consumers tend to buy 200-500yuan barrels of imported infant formula milk. Originality/value – The originality of this study can be found in its context, that is, under the Covid-19 Pandemic. At present, China has achieved the best epidemic control effects, which creates a great opportunity for Chinese brand infant formula milk to go abroad and realize internationalization in the future.
        38.
        2020.02 서비스 종료(열람 제한)
        The essence of "ideological and political education-oriented course" is not only an educational method, but also an educational idea. The implementation of "ideological and political education-oriented course" is of great significance for implementing national ideological education and improving the effectiveness of ideological and political work in universities. It is also a necessary way to effectively play a major role in educating students in classroom. Digital Media Art courses have the unique advantages of enhancing the enjoyment and attractiveness, effectiveness and persuasion, as well as interaction and affinity in the implementation of the "ideological and political education-oriented courses" reform. It is beneficial to realize the teaching design and goal of multi-dimensional education with "ideological and political education-oriented course". In the specific implementation path, it should keep up with the times and take multiple measures. It can be pushed forward by following the principle of curriculum construction, returning to the original idea of education, applying information technology, inheriting outstanding cultural genes, and playing party committee's key role.
        39.
        2018.04 KCI 등재 서비스 종료(열람 제한)
        Purpose - It is important to figure out the relationship between tourism carbon emissions and tourism economics for a healthy tourism development. Research design, data, and methodology - Data of this study are collected from 27 provinces (cities) of China. Tourist consumption stripping coefficient is used to calculate tourism carbon emissions. SBM-Undesirable model is used to measure the efficiency of tourism economics under the constraint of tourism carbon emissions. Results - The results show that: during the year of 2005-2015, there are obvious differences in totals and intensities of tourism carbon emissions among 27 provinces and cities which can be divided into three areas. There is a high possibility of underestimating the actual efficiency of tourism economics by leaving tourism carbon emissions out of account, and a high inefficiency caused by tourism carbon emissions will lead a low efficiency of tourism economics. Conclusions - The development of tourism should give consideration to both economic and environmental benefits, and reduce the inefficiency caused by tourism carbon emissions to improve efficiency of tourism economics by improving the level of technical efficiency and promoting technological progress.
        40.
        2017.12 KCI 등재 서비스 종료(열람 제한)
        Purpose - Performance appraisal has a significant influence on the development of low-carbon tourism distribution. Research design, data, and methodology - Data of this study are collected from 27 provinces (cities) of China. SBM-Malmquist model is used to measure the TFP and its dynamic changes of low-carbon tourism distribution; TOBIT model is used to discuss the factors of TFP of low-carbon tourism distribution. Results - The results show that, there are obvious differences among regional TFP of low-carbon tourism distribution, the average change tends to grow positively in general, and the western region grows fastest on average due to the improvement of technical efficiency and technical progress, while there are technical efficiency improvement but technical regresses in eastern and central regions. The economic scale, economic strength, structure of energy consumption, location quotient and government regulation have a significant positive effect on the TFP of low-carbon tourism; energy intensity, industrial structure and opening degree have a negative effect; investments in fixed assets, intensity of R&D fund and urbanization rate have no significant influence on the TFP of low-carbon tourism. Conclusions - Improving the productivity of low-carbon tourism and reducing regional differences are effective ways to develop low-carbon tourism and enhance tourism competitiveness.
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