Secure Performance Analysis Based on Maximum Capacity

( Xiuping Zheng ),( Meiling Li ),( Xiaoxia Yang ) 한국정보처리학회 2020 Journal of information processing systems Vol.16 No.6

The physical security layer of industrial wireless sensor networks in the event of an eavesdropping attack has been investigated in this paper. An optimal sensor selection scheme based on the maximum channel capacity is proposed for transmission environments that experience Nakagami fading. Comparing the intercept probabilities of the traditional round robin (TRR) and optimal sensor selection schemes, the system secure performance is analyzed. Simulation results show that the change in the number of sensors and the eavesdropping ratio affect the convergence rate of the intercept probability. Additionally, the proposed optimal selection scheme has a faster convergence rate compared to the TRR scheduling scheme for the same eavesdropping ratio and number of sensors. This observation is also valid when the Nakagami channel is simplified to a Rayleigh channel.

Enhanced Production of Docosahexaenoic Acid (DHA) and Squalene in Unicellular Marine Thraustochtrid Protists

Xiuping LIU,Xingyu ZHU,Guangyi WANG 한국생물공학회 2023 한국생물공학회 학술대회 Vol.2023 No.10

An Investigation into Consumer Perceptions of Influencer Sponsorship Disclosure Posts: A Study on Product Involvement and Brand Strength Perspectives

Xiuping Zhang,Elena Kim,Jaewon Choi 한국지능정보시스템학회 2023 한국지능정보시스템학회 학술대회논문집 Vol.2023 No.10

Changes of Collagen in Sea Cucumber (Stichopus japonicas) During Cooking

Xiuping Dong,Beiwei Zhu,Liming Sun,Jie Zheng,Dan Jiang,Dayong Zhou,Haitao Wu,Yoshiyuki Murata 한국식품과학회 2011 Food Science and Biotechnology Vol.20 No.4

Changes of the collagen in sea cucumber (Stichopus japonicas) during cooking were investigated. Crude collagen fibers (CCF) is more sensitive to heat than pepsin-solubilized collagen (PSC), absorbance at 226-232nm increased from 60 to 100^oC. PSC nearly completely degraded after cooking for 8-10 h, 4-6 h, 1-1.5 h, 40-50 min, and 10-20 min at 60, 70, 80, 90, and 100^oC,respectively. Collagen fiber shrinkage, disappearance of periodic cross striation, complete denaturation, and dispersion of denatured fibers at 40, 60, 80 and 100^oC,respectively, were demonstrated by transmission electron microscope (TEM). Above results might be instructional for sea cucumber processing and collagen usage.

Temperature field and demagnetization analysis of in‑wheel motors based on magneto‑thermal two‑way coupling

Xiuping Wang,Jiawei Zhang,Chunyu Qu,Chuqiao Zhou 전력전자학회 2024 JOURNAL OF POWER ELECTRONICS Vol.24 No.2

Due to the narrow working space of an in-wheel motor, the heat generated by the motor loss is difficult to dissipate. This makes it easier for the in-wheel motor to demagnetize the permanent magnet due to the mega-temperature, which affects the output efficiency. To solve this problem, an external rotor hub motor is studied. First, in accordance with the theory of magnetic field modulation, the in-wheel motor to be studied is designed. By analyzing the electromagnetic characteristics of the motor, the correctness of the motor design is verified, and the losses of the motor under different working conditions are calculated. To acquire a more rigorous temperature increase record, the magnetic-thermal bidirectional coupling method is utilized to analyze the temperature field under different load conditions. The mechanism of the demagnetization of permanent magnets is analyzed, and demagnetization at different temperatures is obtained by magneto-thermal two-way coupling. Research shows that when the motor is overloaded for a long time, the temperature can reach a maximum of 220 °C. At this temperature, the permanent magnet undergoes irreversible demagnetization, which results in a 93.44% decrease in torque. Finally, temperature increase tests of a permanent magnet motor are carried out to verify the validity of the magneto-thermal two-way coupling analysis.

Exploring Consumers’ Perceptions of the Influencer Sponsorship Disclosure Posts: the Perspective of Product Involvement and Brand Strength

Xiuping Zhang(장수평),Jaewon Choi 한국지능정보시스템학회 2022 한국지능정보시스템학회 학술대회논문집 Vol.2022 No.6

Strategy of Production and Ordering in Closed-loop Supply Chain under Stochastic Yields and Stochastic Demands

Xiuping Han,Dongyan Chen,Dehui Chen,Haibo Long 보안공학연구지원센터 2015 International Journal of u- and e- Service, Scienc Vol.8 No.4

A closed-loop supply chain system consisting of one manufacturer with random yield and one retailer with random demand is discussed in this paper. The models of expected profit of supply chain system are founded under centralized decision and decentralized decision, respectively. The optimal strategies of yield and order are obtained in two modes. It is proved that the order of retailer is not affected by yield randomness. That is showed by numerical example, the results show: the scheduled production of new product for manufacture will decrease and the total profit and each participant of supply chain will increase as recovery price increases, when the cost of remanufacturing production is lower than the new product.

A Study on the Impact of Financial Flexibility on Corporate Value: Moderating Effects Based on Environmental Uncertainty and Agency Costs

Xiuping Li,Yeong-Gil Kim 한국무역연구원 2021 무역연구 Vol.17 No.6

Purpose The purpose of this article is to understand the financial flexibility reserves of listed companies in China. Based on the internal and external environment of China’s listed manufacturing companies, it studies the impact of financial flexibility on corporate value. Design/Methodology/Approach Based on the trade-off theory, this paper studies the impact of financial flexibility on corporate value. According to the resource-based theory, environmental uncertainty and agency cost are selected from the internal and external factors of the enterprise, and financial contingency theory and principal-agent theory are introduced to analyze their influence mechanism on the relationship between financial flexibility and enterprise value. According to the research results, corresponding suggestions are made to the government and enterprises respectively. Findings This paper studies the impact of financial flexibility on corporate value. Financial flexibility can significantly increase the corporate value of listed companies. Environmental uncertainty plays a positive role in regulating the positive impact of financial flexibility on corporate value. The moderating effect of agency costs between financial flexibility and corporate value has not been proven. Research Implications In the management of this paper, this article provides strong empirical support for the establishment of an effective financial flexibility reserve mechanism and the improvement of corporate value. At the same time, it provides an important theoretical basis for the government’s policy of “structural deleveraging to resolve financial risks” during the transition period, and also provides a reference for the steady advancement of Chinese enterprises’ deleveraging work.

'的'의 의미 기능에 관한 재고찰

LIU XIUPING 한국중국문화학회 2018 中國學論叢 Vol.0 No.60

This paper mainly examines the semantic function of ‘de'in ‘de-construction' and the identity among three types of ‘de-construction'. Firstly, this paper sorts out and analyses the current research on the ‘de-construction', and puts forward some problems related to ‘de-construction', which are still unsolved and controversial. This paper demonstrates through examples that ‘de’ in ‘de-construction’ is not a ‘tense-aspect marker’. It can coexist with ‘le’, ‘zhe’ and ‘guo’. Finally, from the cognitive point of view, this paper introdu’es the concepts of ‘reality’and ‘irreality’ proposed by Langacker. It is considered that the three types of the ‘de-construction' has identity. The basic function of the ‘de-construction'is that the speaker protiling the reality as a gestalt and conveys it to the listener. The ‘de’ is a ‘reality protiling marker’ and the ‘de’ what is called Nominalization marker is a ‘entity protiling marker’ marker. There is identity between the two. 본고는 ‘的구문’에서의 ‘的’의 의미기능과 세 가지 유형의 ‘的구문’ 간의 동일성에 대해 논의하였다. 본고에서 우선 ‘的구문’에 대한 기존연구를 정리하고 분석한 다음, 현재까지 아직 해결되지 못하거나 논쟁의 여지가 있는 몇 가지 문제를 제기하였다. 그리고 예문에 대한 분석을 통해 ‘的구문’에서 ‘的’는 단순히 시제-상 표지가 아니라는 것을 입증하였고, ‘的’는 상 표지인 ‘了'、'著'、'過'와 모두 공기할 수 있다는 사실과 원인을 밝혔다. 마지막으로 본고는 인지적인 관점에서 Langacker가 제가한 ‘실상’과 ‘비실상’의 개념을 도입하여 ‘的구문’에 적용시켜 세 가지 유형의 ‘的구문’은 동일성을 가진다고 밝혔다. 그리고 본고에는 ‘的구문’의 근본적인 의미기능은 ‘화자가 실상을 하나의 게쉬탈트로 윤곽부여 청자에게 전하는 것’이라고 주장한다. 이에 따라 ‘的구문’에서 '的'는 ‘실상 윤곽 부여 표지’이고, 소위 명사화 표지인 ‘的’는 ‘실체 윤곽부여 표지’이며 이 두 개의 '的'는 서로 동일성을 가진다고 생각한다.

국내 프리미엄 화장품 패키지 디자인의 시각적 요인이 브랜드 연상, 브랜드 신뢰, 구매의도에 미치는 영향 -중국 상하이 여성소비자를 중심으로-

대수평 ( Dai Xiuping ),한정민 ( Han Jung-min ) 커뮤니케이션디자인학회(구 시각디자인학회) 2020 커뮤니케이션 디자인학연구 Vol.70 No.-

본 연구는 중국시장의 한국 프리미엄 화장품 대상으로 패키지 디자인 시각적 요소의 요인을 밝히고, 패키지 디자인 시각적 요인이 브랜드 연상, 브랜드 신뢰를 통해 구매의도에 미치는 영향을 밝히는 것이다. 이를 위해 한국 프리미엄 화장품 브랜드 패키지 디자인에 대해 중국 상하이 여성을 대상으로 양적 연구를 진행하였다. 연구의 결과는 첫째, 패키지 디자인의 시각적 요소 중 색채와 용기 요소가 브랜드 연상에, 색채 요소가 브랜드 신뢰에 가장 큰 영향을 주는 것으로 나타났다. 둘째, 패키지 디자인의 시각적 요인 중 색채 요소가 구매의도에 영향을 미치는 것으로 나타났다. 셋째, 브랜드 연상, 브랜드 신뢰 중 브랜드 신뢰가 구매의도에 영향을 미치는 것으로 나타났다. 연구결과를 통해 패키지 디자인의 색채요인이 중국 소비자들의 구매행동에 중요한 요소임을 확인할 수 있었으며, 브랜드에 대한 감성적 요인보다 이성적 요인이 중요함을 알 수 있었다. 이와 같은 결과는 중국시장에서의 한국 화장품 산업에 대한 학문적 및 실무적 시사점을 제공할 수 있다. This study examines the factors of package design visual factors in Korean domestic premium cosmetics market in China, and the influence of package design visual factors on brand intention and brand trust is to identify the purchase intention. To this end, we conducted a quantitative study of women in Shanghai, China, on the design of Korean luxury cosmetics brand packages. The results of the study were as follows: First, Among the visual elements of the package design, the color and container elements showed the greatest influence on the brand association and color factors have the biggest impact on brand trust. Second, among the visual factors of package design, color factor affects purchase intention. Third, brand trust among brand association and brand trust has an influence on purchase intention. Through the research results, it was found that the color factor of package design is an important factor for Chinese consumers' purchasing behavior, and that rational factor is more important than emotional factor for brand. These results can provide academic and practical implications for the Korean cosmetic industry in the Chinese market.