A NOVEL FUNCTIONAL MATERIAL OF Ag-S$i_3N_4$ NANOSTRUCTURED COMPOSITE

Zhu, Zhu, Yi-Hun,Zhu, Zhu, Hong-Jie,Han, Han, Jin-Yi,Hu, Li-Ming 한국재료학회 1995 Fabrication and Characterization of Advanced Mater Vol.1 No.1

$Ag-Si_3N_4$ nanostrutured composite has been investigated. The results show that it exhibits some novel properties such as strong piezpelectricity and high dielectricity. It can be constituted a battery using graphite and aluminum as the positive and the negative electrodes, respectively. The origins of these properties have been discussed.

Secure Similarity Search over Encrypted Cloud Images

Yi Zhu,Xingming Sun,Zhihua Xia,Naixue Xiong 보안공학연구지원센터 2015 International Journal of Security and Its Applicat Vol.9 No.8

With the growing popularity of cloud computing, more and more data owners are willing to outsource their data to the cloud. However, private data should be encrypted before outsourcing for security requirements, which obsoletes data utilization like content-based image retrieval. In this paper, we propose a secure similarity image search scheme, which allows data owners to outsource their encrypted image database to the cloud server without revealing the real content of images. The proposed scheme supports both global and local feature based image retrieval under various distance metrics, such as earth mover's distance. Firstly, the data owner extracts either global features or local features from images to represent the images. Then, these features are used to generate a searchable index. Finally, both image database and searchable index are encrypted before outsourcing to the cloud server. When a query image coming, the data user extracts feature from the query image and generates the search trapdoor. The trapdoor is then sent to the cloud server and used to compare the similarity with the searchable index. Extensive experiments are conducted to show the efficiency and applicability of our proposed similarity image search system.

『Time and Space Interpretation of Wu Xiaobang’s Dance Education Practice』

( Zhu Yi ) 인문사회과학예술융합학회 2018 인문사회과학예술융합학회지 Vol.2 No.2

Wu Xiaobang is the founder of Chinese new dance art. He devoted his life to the combination of dance practice and theoretical research. He is a master of dance art combining dance performance, teaching, choreography and theory. Based on Wu Xiaobang’s history of dancing, the article focuses on his teaching practice and the creation and theory of each stage, From the three stages of "developing new dance education", "founding dance art studio" and "committed to the construction and dissemination of dance theory", Wu Xiaobang’s dance education practice history was explained.

Tunable Photonic Microspheres of Comb-Like Supramolecules

Yi Yang,Tae-Hui Kang,Gi-Ra Yi,Jintao Zhu 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2

Photonic crystals (PCs) are ideal candidates for reflective color pigments with high color purity and brightness due to tunable optical stop band. Herein, the generation of PC microspheres through 3D confined supramolecular assembly of block copolymers (polystyrene-block-poly(2-vinylpyridine), PS-b-P2VP) and small molecules (3-n-pentadecylphenol, PDP) in emulsion droplets is demonstrated. The intrinsic structural colors of the PC microspheres are effectively regulated by tuning hydrogen-bonding interaction between P2VP blocks and PDP, where reflected color can be readily tuned across the whole visible spectrum range. Also, the effects of both PDP and homopolymer (hPS) on periodic structure and optical properties of the microspheres are investigated. Moreover, the spectral results of finite element method (FEM) simulation agree well with the variation of structural colors by tuning the periodicity in PC microspheres. The supramolecular microspheres with tunable intrinsic structural color can be potentially useful in the various practical applications including display, anti-counterfeit printing and painting.

A Cache Privacy Protection Mechanism based on Dynamic Address Mapping in Named Data Networking

( Yi Zhu ),( Haohao Kang ),( Ruhui Huang ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.12

Named data networking (NDN) is a new network architecture designed for next generation Internet. Router-side content caching is one of the key features in NDN, which can reduce redundant transmission, accelerate content distribution and alleviate congestion. However, several security problems are introduced as well. One important security risk is cache privacy leakage. By measuring the content retrieve time, adversary can infer its neighbor users’ hobby for privacy content. Focusing on this problem, we propose a cache privacy protection mechanism (named as CPPM-DAM) to identify legitimate user and adversary using Bloom filter. An optimization for storage cost is further provided to make this mechanism more practical. The simulation results of ndnSIM show that CPPM-DAM can effectively protect cache privacy.

Thoughts blossom in spatiotemporal art - A Study on Wu Xiaobang's Comprehensive Dance Education Concept -

Zhu Yi 동방문화대학원대학교 문화예술콘텐츠연구소 2020 문화와예술연구 Vol.16 No.-

인체 ‘자연법칙훈련’은 무용수에 대한 신체 훈련 및 신체 기 술 훈련이 더 이상 유일한 교학 목적이 아니라 과학적으로 사 람 신체의 전반적인 체험의 획득을 중시한 것이다. 이론과 실천의 일체화인 ‘현대무용 창작 실습수업’에서 무용 수의 창의력에 대한 유도는 ‘호흡, 동작과 상상’으로 일관해야 한다. 이러한 신체의 훈련과 체험을 통해 몸과 마음이 서로 부 합함으로 미(美)의 예술 체험을 얻을 수 있다. 이로 우샤오방 (吴晓邦)의 ‘전면적 인재육성’ 무용 교수법의 핵심 관점을 연구 분석하였다. 이는 많은 무용수(교육에 종사하는 무용수)들에게 방향을 제 시하여 과학적이고 체계적인 참고자료를 제공할 것이다. The body shaping and physical skill training of dancers are no longer the only teaching objective of physical "Natural Law training", which scientifically pays more attention to the acquisition of the comprehensive experience of human body, the guidance of dancers' creativity in the "modern dance creation practice course" integrating theory and practice, as well as implements "breath, action and imagination" throughout. By means of the acquisition of this series of physical experiences, we will eventually achieve the conjunction of body and mind, thus earning the artistic experience of beauty. This is the core point of Wu Xiaobang's dance teaching method of "comprehensive education",which points out the direction for the majority of dancers, and provides a scientific and systematic method of reference.

Critical multi-field load analysis of the piezoelectric/piezomagnetic microplates as an application in sports equipment

Yi Zhu Techno-Press 2023 Advances in nano research Vol.15 No.5

Critical multi-field loads and free vibration responses of the sandwich piezoelectric/piezomagnetic microplate subjected to combination of magnetoelectromechanical loads based on a thickness-stretched higher order shear deformable model using Hamilton's principle. The lateral displacement is assumed summation of bending, shearing and stretching functions. The elasti core is sandwiched by a couple of piezoelectric/piezomagnetic face-sheets subjected to electromagnetocmechanical loads. The work of external force is calculated with considering the in-plane mechanical, electrical and magnetic loads based on piezomagnetoelasticity relations. The critical multi field loading and natural frequency analysis are performed to investigate influence of geometric and loading parameters on the responses. A verification is performed for justification of the numerical results.

Albumin-to-Fibrinogen Ratio as an Independent Prognostic Parameter in Untreated Chronic Lymphocytic Leukemia: A Retrospective Study of 191 Cases

Yi-Xin Zou,Jia Qiao,Hua-Yuan Zhu,Rui-Nan Lu,Yi Xia,Lei Cao,Wei Wu,Hui Jin,Wen-Jie Liu,Jin-Hua Liang,Jia-Zhu Wu,Li Wang,Lei Fan,Wei Xu,Jian-Yong Li 대한암학회 2019 Cancer Research and Treatment Vol.51 No.2

Purpose Chronic lymphocytic leukemia (CLL) is one of the most frequent type of B-cell chronic lymphoproliferative disorders and chronic inflammation takes part in the development of CLL. However, there has been no valid immune biomarker to predict the prognosis of untreated CLL patients. Materials and Methods In this retrospective study, we analyzed the clinical correlations and prognostic value of albumin-to-fibrinogen ratio (AFR) detected at diagnosis in 191 CLL patients. Results The cut-off value of AFR was 9.7 calculated by X-tile. Patients who were more than 65 years old were often accompanied by low level of AFR (p < 0.001). Survival analysis showed that patients with low level of AFR had shorter overall survival (OS) than patients with high level of AFR (p < 0.001). Multivariate analysis illustrated that AFR had a negative impact on OS (p=0.003) and was independent of parameters involved in CLL international prognostic index and other prognostic markers such as CD38 and ZAP-70. Conclusion These data provide a comprehensive view of AFR and shows that AFR at diagnosis is an adverse prognostic factor in untreated CLL patients.

Brief Discussion on the Task and Function of Music Education

( Zhu Yi ) 인문사회과학예술융합학회 2019 인문사회과학예술융합학회지 Vol.3 No.1

Music is an important way to implement aesthetic education, and it’s also the important content of school education. The history of human education has fully emerged that music education not only has the function of perfecting personality and cultivating sentiment, but also has the irreplaceable function of other arts forms. Based on this cognition, this paper takes the field of music education and taking music education as the object, trying to expound the task and function of music education on the base of learning the Academic Achievements of Forefathers, aiming to promote the healthy development of music education.

Improvement of Fumigaclavine C Production in a Two-stage Culture of Aspergillus fumigatus with Molasses as a Cost-effective Ingredient

Yi-Xiang Zhu,WEIWEI HUAN,Ling-yun Yao,Wan-Guo Yu,Ruihua Jiao,Yan-Hua Lu,Renxiang Tan 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.6

Fumigaclavine C (FC), which is produced by Aspergillus fumigatus, is a conidiation-associated ergot alkaloid with significant medical benefits. However, its application is restricted by low yields from submerged cultures. In this study, the technical feasibility of using molasses as a cost-effective ingredient for FC production in a two-stage culture of A. fumigatus was evaluated. The results indicated that molasses supplementation significantly enhanced FC accumulation by promoting conidiation and up-regulating hydroxymethylglutaryl-CoA reductase activity. Via the optimization of the two-stage process in the presence of molasses, FC production in shake flasks reached 226.9 mg/L, which was approximately three times that in the original medium (75.9 mg/L). The use of molasses as a cost-effective ingredient for FC fermentation was also successfully reproduced in a lab-scale bioreactor system in which the maximum FC production reached 215.0 mg/L. The FC production obtained in this study is the highest ever reported. This increased efficiency will enable large-scale production of FC and extend the application of molasses as a low-cost substrate for producing other conidiation-related secondary metabolites.