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      • Research Optimization of the Management of New Product Development Projects: the case of Lenovo

        Chen Xi,Wang Xinyu,Li Hao 한중경제문화학회 2024 한중경제문화연구 Vol.25 No.-

        In recent years, electronic products have played an increasingly important role in modern society and have penetrated into people’s life and work. With the continuous development of technology and the increasing demand for convenience and innovation, the functions and performance of electronic products continue to improve. However, the intensification of market competition and the rapid advancement of technological progress have brought many challenges and opportunities to the field of electronic products. This paper takes the new product development project management process of Lenovo Company as the research object, adopts investigation analysis method, literature analysis method and project management theory and gateway development management theory to deeply analyze the existing problems in the new product development project management of Lenovo Company, such as: The new product development cycle is long, the new product development cost is over budget, the new product development project organization and coordination ability is weak, and the project monitoring and feedback are not timely. The causes of these problems are analyzed. In view of the existing problems, this paper makes an in-depth study of the relevant theories of project management and new product development, and puts forward an optimization scheme suitable for the improvement of the new product development project management of Lenovo Company. It means adopting agile development scheme, establishing project development cost control point, optimizing organizational structure, and establishing perfect project management supervision and feedback mechanism. Finally, based on the current situation of Lenovo ‘s new product development, this paper proposes the guarantee measures for the smooth implementation of the new product development project management optimization plan, namely, talent guarantee, development and innovation awareness, risk control awareness, and management awareness in strengthening cultural construction, so as to ensure the smooth implementation of new product development project management.

      • Buckling patterns of thin films on curved compliant substrates with applications to morphogenesis and three-dimensional micro-fabrication

        Chen, Xi,Yin, Jie Royal Society of Chemistry 2010 SOFT MATTER Vol.6 No.22

        <P>Self-assembled buckling patterns of thin films on compliant substrates have been subjected to extensive studies and shown great promise in micro-fabrication. However, most previous studies were limited to planar substrates, and the study of buckling of films on curved substrates has not received sufficient attention. With the constraining effect from various types of substrate curvature, numerous new types of buckling morphologies may emerge which not only enable true three-dimensional (3D) fabrication of microstructures and microdevices, but also have important implications for the morphogenesis of quite a few natural and biological systems. We review the scientific aspects of elastic buckling of thin films on several representative curved substrates, emphasizing the critical effect of substrate curvature, its interaction with other material/system parameters, ways to control the buckles based on mechanical and physical principles, and bridge them with prospective applications in biology, biomedical engineering, and small-scale fabrication.</P> <P>Graphic Abstract</P><P>Mechanical self-assembly, underpinned by the spontaneous buckling patterns of thin films on curved compliant substrates, is highly relevant to the morphogenesis of some biological systems and fabrication of 2D/3D microstructures. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0sm00401d'> </P>

      • SCIESCOPUSKCI등재

        Fast Voltage-Balancing Scheme for a Carrier-Based Modulation in Three-Phase and Single-Phase NPC Three-Level Inverters

        Chen, Xi,Huang, Shenghua,Jiang, Dong,Li, Bingzhang The Korean Institute of Electrical Engineers 2018 Journal of Electrical Engineering & Technology Vol.13 No.5

        In this paper, a novel neutral-point voltage balancing scheme for NPC three-level inverters using carrier-based sinusoidal pulse width modulation (SPWM) method is developed. The new modulation approach, based on the obtained expressions of zero sequence voltage in all six sectors, can significantly suppress the low-frequency voltage oscillation in the neutral point at high modulation index and achieve a fast voltage-balancing dynamic performance. The implementation of the proposed method is very simple. Another attractive feature is that the scheme can stably control any voltage difference between the two dc-link capacitors within a certain range without using any extra hardware. Furthermore, the presented scheme is also applicable to the single-phase NPC three-level inverter. It can maintain the neutral-point voltage balance at full modulation index and improve the voltage-balancing dynamic performance of the single-phase NPC three-level inverter. The performance of the proposed strategy and its benefits over other previous techniques are verified experimentally.

      • SCISCIESCOPUS

        Release Kinetics of Tocopheroland Quercetin fromBinary Antioxidant Controlled-Release Packaging Films

        Chen, Xi,Lee, Dong Sun,Zhu, Xuntao,Yam, Kit L. American Chemical Society 2012 Journal of agricultural and food chemistry Vol.60 No.13

        <P>This paper investigated the feasibility of manipulatingpackagingpolymers with various degrees of hydrophobicity to release two antioxidants,tocopherol and quercetin, at rates suitable for long-term inhibitionof lipid oxidation in food. For example, one antioxidant can be releasedat a fast rate to provide short-term/intermediate protection, whereasthe other antioxidant can be released at a slower rate to provideintermediate/long-term protection of lipid oxidation. Controlled-releasepackaging films containing tocopherol and quercetin were producedusing ethylene vinyl alcohol (EVOH), ethylene vinyl acetate (EVA),low-density polyethylene (LDPE), and polypropylene (PP) polymers;the release of these antioxidants to 95% ethanol (a fatty food simulant)was measured using UV–vis spectrophotometry, and Fickian diffusionmodels with appropriate initial and boundary conditions were usedto fit the data. For films containing only quercetin, the resultsshow that the release of quercetin was much faster but lasted fora much shorter time for hydrophilic polymers (EVOH and EVA) than forhydrophobic polymers (LDPE and PP). For binary antioxidant films containingtocopherol and quercetin, the results show that tocopherol releasedmore rapidly but for a shorter period of time than quercetin in LDPEand EVOH films, and the difference is more pronounced for LDPE filmsthan EVOH films. The results also show the presence of tocopherolcan accelerate the release of quercetin. Although none of the filmsproduced is acceptable for long-term lipid oxidation inhibition, thestudy provides encouraging results suggesting that acceptable filmsmay be produced in the future using polymer blend films.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jafcau/2012/jafcau.2012.60.issue-13/jf2045813/production/images/medium/jf-2011-045813_0006.gif'></P>

      • KCI등재

        Reflections on Application of VR Technology in Field of News Media

        Chen Xi,Jeanhun Chung 한국인터넷방송통신학회 2023 International Journal of Internet, Broadcasting an Vol.15 No.2

        In recent years, virtual reality (VR) technology has been widely used in many industrial fields, especially in the fields of medical treatment, games, film and television, to improve the interaction between medical teaching and practical treatment. On the gaming side, the production of virtual reality gaming screens and scenes became increasingly popular, greatly expanding the form of the visual experience. But VR is no longer confined to the health care, education and entertainment industries. During this time, the news media industry has also begun to integrate virtual reality into interviews and user interactions. This study aims to analyze the development of VR technology from the perspectives of immersive VR news experience, real reporting, and prospects, and analyze and think about the interactive participation of media users, the transformation of traditional media, and the upgrading of practitioners' roles.

      • KCI등재

        A Study on Character Design Using [Midjourney] Application

        Chen Xi,정진헌 국제문화기술진흥원 2023 International Journal of Advanced Culture Technolo Vol.11 No.2

        In recent years, the emergence of a number of AI image generation software represented by [Midjourney] has brought great impetus to the development of the field of AI-assisted art creation. Compared with the traditional hand-painted digital painting with the aid of electronic equipment, broke the traditional sense of animation character creation logic.This paper analyzes the application of AI technology in the field of animation character design through the practice of two-dimensional animation character . This is having a significant impact on the productivity and innovation of animation design and character modeling. The key results of the analysis indicate that AI technology, particularly through the utilization of "Midjourney,"enables the automation of certain design tasks, provides innovative approaches, and generates visually appealing and realistic characters. In conclusion, the integration of AI technology, specifically the application of "Midjourney," brings a new dimension to animation character design. The utilization of AI image generation software facilitates streamlined workflows, sparks creativity, and improves the overall quality of animated characters. As the animation industry continues to evolve, AI-assisted tools like "Midjourney" hold great potential for further advancement and innovation.

      • SCISCIESCOPUS

        Plasmonic roller lithography

        Chen, Xi,Lee, Sung Ho,Zhang, Cheng,Li, Qiaochu,Yamada, Kaito,Kwak, Moon Kyu,Guo, L Jay IOP 2019 Nanotechnology Vol.30 No.10

        <P>Photo roller lithography systems can generate patterns continuously over large areas by employing flexible photomasks on rotating quartz cylinders. In comparison, plasmonic lithography systems can reach deep sub-wavelength resolution utilizing evanescent waves carrying high spatial frequency components. In this work, we demonstrate a plasmonic roller system by integrating a quartz mechanical roller with a specially designed photomask based on plasmonic waveguide lithography. Deep sub-wavelength uniform patterns with high aspect ratios were printed continuously over a moving substrate. The plasmonic roller system may find practical applications in the large-scale production of electronic and photonic devices in a cost-effective way.</P>

      • Antecedents and consequence of the consumer's psychic distance in cross-border e-commerce

        CHEN XI,김학민 경희대학교 글로벌 통상·금융연구원 2021 International Trade, Politics and Development Vol.5 No.2

        The psychic distance often hinders the interaction between cross-border e-commerce (CBEC) and consumers. This paper aims to discuss the issues of psychic distance of consumers in the CBEC. In addition, it attempts to explain the factors that affect psychic distance from three dimensions of culture, economy and politics and the two different shopping behaviors caused by psychic distance.This research incorporates both theoretical and empirical studies. In this study, 249 validated questionnaires were selected from 300 Chinese CBEC consumers by snowball sampling, and the relationship between variables was tested using structural equation model (SEM). This was done through online research, and it is ensured that the data obtained are first-hand information.The paper suggests the theoretical model operationalizing CBEC psychic distance and the empirical analysis results show that all the six influencing factors have a positive impact on the psychic distance of consumers. Logistics infrastructure barriers in the economic dimension are confirmed as the major influencing factor, and the significance of the political dimension is relatively small. Based on consumers' uncertainty of various kinds of information, psychic distance subconsciously causes consumers to deviate in the cross-shopping process.Currently, research on e-commerce mainly focuses on saving trade costs and improving consumer welfare, while research on the internal impact of CBEC on consumers is insufficient. Psychic distance is a new concept in the field of cultural and social research. The originality of this paper is that the concept of psychic distance has been extended from overseas invested enterprises to research with CBEC consumers as the selected object. The obstacles of CBEC have been widely studied, but few are related to the closeness of consumers, or the inner feelings of consumers are ignored. In the context of CBEC, this paper lists the actual external factors and potential threats that may affect consumers' consumption concerns of CBEC from three dimensions. The real emotions of consumers in the face of these difficulties indirectly affect the purchase satisfaction and reduce the purchase desire. Consumer psychic distance is a real phenomenon in cross-border shopping, and it is almost inevitable for these difficulties. On the premise of inevitability, high psychic distance will slow down cross-border shopping in the eyes of consumers.

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