Enhanced Selectivity for Oriented Catalyzing Tetracycline by the Functional Inorganic Imprinted ZnFe2O4@Ag3PO4/SiO2 Photocatalyst with Excellent Stability

Ziyang Lu,Zehui Yu,Minshan Song,XINLIN LIU,Yang Liu,Yongsheng Yan,Pengwei Huo,Hongjun Dong,Fei Chen,Song Han 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.1

A novel functional inorganic imprinted ZnFe2O4@Ag3PO4/SiO2 photocatalyst was synthesized by a facile sol–gel method combined with the surface imprinting technique, which possessed excellent stability. By optimizing the amount of materials, we determine the preferable addition amounts of tetraethoxysilane (TEOS) and tetracycline to be 0.06 mL and 0.06 g, respectively. This as-prepared functional inorganic imprinted ZnFe2O4@Ag3PO4/SiO2 photocatalyst was proved to not only exhibit high photocatalytic activity (the photodegradation rate was 61.52% under the simulated sunlight irradiation of 60 min), but also possess a strong oriented ability to selectively recognize and photocatalyze tetracycline (the coeficient of selectivity (k selectivity) was 5.14 for ciprofloxacin and 3.63 for gatifloxacin). Moreover, the functional inorganic imprinted ZnFe2O4@Ag3PO4/SiO2 photocatalyst prepared with SiO2 as the inorganic imprinted layer has good stability and can be recycled many times. This work not only puts forward a novel design idea of functional semiconductor materials but also is expected to be widely applied to the oriented catalysis for a target substance according to the practical requirement.

A Study on the Influence of the Elderly’s Will to Use Mobile Payments in China and Korea

LIU ZIYANG(유자양),LI WEIJIA(이위가) 한국컴퓨터정보학회 2022 한국컴퓨터정보학회 학술발표논문집 Vol.30 No.1

Research on Users Willingness to Continuously Purchase Online Music Pay Services

Ziyang Liu,Jiayu Liu 한국동양예술학회 2020 동양예술 Vol.47 No.-

Research on the Influence of Chinese Modern Art Competitiveness on Customer Purchase Intention - Take the Art of Buying Customers in Beijing 798 Art District as an Example -

( Liu Ziyang ) 한국동양예술학회 2018 동양예술 Vol.41 No.-

오늘날 점점 치열해지고 있는 산업 경쟁 속에서, 다양한 산업들이 각각의 산업의 가치를 극대화하기 위해, 그리고 같은 예술 작품, 특히 현대 미술 시장이 치열한 경쟁 속에서 발전하고 있다. 현대 미술이 미술 시장에서 그 자리를 차지한다면, 그것의 경쟁력을 향상해야만 치열한 경쟁 속에서 더 많은 고객을 확보할 수 있다. 현대 미술은 시대에 따른 예술의 발전의 산물이다. 본 논문의 목적은 현대 미술의 경쟁력이 소비자의 구매 의지에 미치는 영향에서 결론을 도출하는 것이다. 논문에서는 미술의 쾌락과 예술의 실용성을 분석적 요인으로 활용한다. 이 논문은 현대 미술의 경쟁력에 대한 새로운 이해를 얻기 위해 현대 미술의 경쟁력에 대한 탐구적인 분석을 실시한다. 데이터 분석은 계측 분석 도구 SPSS와 AMOS를 이용하여 수행하였으며, 신뢰성 분석, 유효성 분석, 구조 등식 모델 분석을 이용하여 최종 분석 결과를 얻었다. 분석 결과에 따르면, 우리는 현대 미술의 경쟁력이 현대 미술의 즐거움에 긍정적인 영향을 미친다는 결론을 얻을 수 있다. 현대 미술의 경쟁력은 또한 현대 미술의 실용성에 긍정적인 영향을 미친다. 현대미술은 고객의 구매 의도에 긍정적인 영향을 미치며, 현대미술의 실용성은 고객의 구매 의도에 긍정적인 영향을 미친다. 결론 분석을 통해, 우리는 현대 중국예술의 발전을 위한 몇 가지 제안과 영감을 제시할 수 있다. In today's increasingly fierce industry competition, various industries have increased the competitiveness of their respective industries in different ways, so as to maximize the value of their respective fields, and the same works of art, especially the modern art market is developing in fierce competition. If modern art has its own place in the art market, only by improving its competitiveness can it acquire more customers in the fierce competition. Modern art is the product of the development of art following the times. The purpose of this paper is to draw conclusions from the influence of the competitiveness of modern art on the willingness of customers to purchase. In the paper, the hedonistic of art and the practicality of art are used as analytical factors. This thesis conducts exploratory analysis of the competitiveness of modern art, hoping to achieve a new understanding of the competitiveness of modern art. Data analysis was performed using the metrology analysis tools SPSS and AMOS, and the final analysis results were obtained using reliability analysis, validity analysis, and structural equation model analysis. According to the analysis results, we can get the conclusion that the competitiveness of modern art has a positive influence on the enjoyment of modern art. The competitiveness of modern art also has a positive impact on the practicality of modern art. Modern art the enjoyment of the product has a positive influence on the customer's purchase intention, and the practicality of the modern art has a positive impact on the customer's purchase intention. Through the analysis of the conclusions, we can put forward some suggestions and inspirations for the development of modern Chinese art.

Inter-hemispheric Functional Connections Are More Vulnerable to Attack Than Structural Connection in Patients With Irritable Bowel Syndrome

( Guangyao Liu ),( Shan Li ),( Nan Chen ),( Ziyang Zhao ),( Man Guo ),( Hong Liu ),( Jie Feng ),( Dekui Zhang ),( Zhijun Yao ),( Bin Hu ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2021 Journal of Neurogastroenterology and Motility (JNM Vol.27 No.3

Background/Aims Irritable bowel syndrome (IBS) is a prevalent functional gastrointestinal disease characterized by recurrent abdominal pain and bowel dysfunction. However, the majority of previous neuroimaging studies focus on brain structure and connections but seldom on the inter-hemispheric connectivity or structural asymmetry. This study uses multi-modal imaging to investigate the abnormal changes across the 2 cerebral hemispheres in patients with IBS. Methods Structural MRI, resting-state functional MRI, and diffusion tensor imaging were acquired from 34 patients with IBS and 33 healthy controls. The voxel-mirrored homotopic connectivity, fractional anisotropy, fiber length, fiber number, and asymmetry index were calculated and assessed for group differences. In addition, we assessed their relevance for the severity of IBS. Results Compared with healthy controls, the inter-hemispheric functional connectivity of patients with IBS showed higher levels in bilateral superior occipital gyrus, middle occipital gyrus, precuneus, posterior cingulate gyrus, and angular gyrus, but lower in supplementary motor area. The statistical results showed no significant difference in inter-hemispheric anatomical connections and structural asymmetry, however negative correlations between inter-hemispheric connectivity and the severity of IBS were found in some regions with significant difference. Conclusions The functional connections between cerebral hemispheres were more susceptible to IBS than anatomical connections, and brain structure is relatively stable. Besides, the brain areas affected by IBS were concentrated in default mode network and sensorimotor network. (J Neurogastroenterol Motil 2021;27:426-435)

Depth tracking of occluded ships based on SIFT feature matching

Yadong Liu,Yuesheng Liu,Ziyang Zhong,Yang Chen,Jinfeng Xia,Yunjie Chen 한국인터넷정보학회 2023 KSII Transactions on Internet and Information Syst Vol.17 No.4

Multi-target tracking based on the detector is a very hot and important research topic in target tracking. It mainly includes two closely related processes, namely target detection and target tracking. Where target detection is responsible for detecting the exact position of the target, while target tracking monitors the temporal and spatial changes of the target. With the improvement of the detector, the tracking performance has reached a new level. The problem that always exists in the research of target tracking is the problem that occurs again after the target is occluded during tracking. Based on this question, this paper proposes a DeepSORT model based on SIFT features to improve ship tracking. Unlike previous feature extraction networks, SIFT algorithm does not require the characteristics of pre-training learning objectives and can be used in ship tracking quickly. At the same time, we improve and test the matching method of our model to find a balance between tracking accuracy and tracking speed. Experiments show that the model can get more ideal results.

Enhanced Photocatalytic Activity and Selectivity of a Novel Magnetic PW@PEDOT Imprinted Photocatalyst with Good Reproducibility

Ziyang Lu,Zehui Yu,Jinbo Dong,Xinyu Xiong,Lin Gao,Minshan Song,Yang Liu,Di Fan,Yongsheng Yan,Pengwei Huo 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2018 NANO Vol.13 No.2

The novel magnetic PW-doped PEDOT (PW@PEDOT) imprinted photocatalyst with good reproducibility was prepared by the surface imprinting technique and microwave heating method. Due to the existence of PW@PEDOT and imprinted cavity in the imprinted layer, the as-prepared magnetic PW@PEDOT imprinted photocatalyst not only had higher photocatalytic activity, but also had the excellent specific recognition ability for selective photodegradation of TC. This paper proposed a new idea to prepare the imprinted photocatalysts.

Willingness to Continue Using Knowledge Payment Products Based on Information Adoption Model: The Intermediary Role of Customer Engagement

Zhang, Xi,Liu, Ziyang,Li, Na 한국비즈니스학회 2023 비즈니스융복합연구 Vol.8 No.3

Knowledge payment is an important form of sharing economy. Research on the continuous use willingness of knowledge payment consumers will help to realize the sustainable development of the knowledge payment industry. Based on the information adoption model and the customer engagement theory, the function model of consumers' willingness to continue using knowledge payment is constructed. Data are collected through the questionnaire star platform, and the model and hypothesis are tested by SPSS23.0 and AMOS24.0. The results show that information quality and credibility of information sources have significant positive effects on customer psychological engagement and behavioral engagement; Customer engagement has a significant positive impact on the willingness to continue using knowledge payment; Customer engagement plays an intermediary role between the quality of information and the credibility of information sources and the willingness to pay for continuous use of knowledge. This study emphasizes the importance of information quality, credibility of information sources and customer engagement in influencing consumers' willingness to continue using knowledge payment products, and provides some reference for the knowledge payment platform to develop effective online marketing strategies.

Influence of Sleeve Material and Sleeve Composite Structure on Performance of High-Speed Permanent Magnet Starter-Generator for Micro-Gas Turbine

Qiu Hongbo,Liu Ziyang,Xiong Bin,Zhao Qiang,Dong Yu,Wu Xuandong 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.4

When the high-speed permanent magnet starter-generator (PMSG) is operating, the permanent magnets will be aff ected by high centrifugal forces. It is necessary to add a sleeve to protect the rotor and interference fi t with the permanent magnet. However, the performance of the high-speed PMSG will be signifi cantly infl uenced by the electromagnetic characteristics of the sleeve material. In this paper, a high-speed permanent magnet starter-generator for the micro-gas turbine is used as an example, and the two-dimensional fi nite element model is established. The correctness of the model is verifi ed by comparing the experimental data with the calculated data. Taking 10,000 r/min as the ignition speed, the diff erences of motor starting performances when using diff erent sleeve materials are compared. Secondly, decoupling the complex coupling torque in the starting process, the infl uence of material electromagnetic characteristics on the asynchronous torque and braking torque is determined, and the infl uence mechanism of material electromagnetic characteristics on the torque characteristics of highspeed PMSG is revealed. In addition, the eff ects of the sleeve materials on the output performance and loss of the high-speed PMSG are determined, and infl uence mechanism is revealed. On the basis, a sleeve multiplexing scheme is proposed to improve the starting performance while reducing the eddy current losses in the generating state. The results of the study provide reference and theoretical value for the optimization of high-speed permanent magnet starter-generator.

Research on Satisfaction Evaluation Based on Tourist Big Data

( Hanwen Guo ),( Ziyang Liu ),( Zeyu Jiao ) 한국인터넷정보학회 2022 KSII Transactions on Internet and Information Syst Vol.16 No.1

With the improvement of people's living standards and the development of tourism, tourists have greater freedom in choosing destinations. Therefore, as an indicator of satisfaction with scenic spots, tourist comments are becoming increasingly prominent. This paper aims to compare and analyze the landscape image of the Five Great Mountains in China and provide specific strategies for its development. The online reviews of tourists on the Online Travel Agency (OTA) website about the Five Great Mountains from 2015 to 2018 are collected as research samples. The text analysis method and R language are used to analyze the content of the tourist reviews, while the high-frequency words in the word cloud are used for visual display. In addition, the entropy weight method is used to determine the index weight and tourist satisfaction is evaluated to understand the weaknesses of those scenic spots. The results of the study show that firstly, the tourist satisfaction with the Five Great Mountains is basically consistent with its popularity. Secondly, through weight analysis, tourists pay special attention to the landscape features and environmental health of the scenic area, so that relevant departments should focus on building the landscape characteristics and improving the environmental health of the scenic area. At the same time, the accommodation and service management of the scenic spot cannot be ignored. Finally, according to the analysis results, suggestions are made on how to improve the tourist satisfaction with the Five Great Mountains.