코로나19 이후 도시관광 선택속성이 만족도 및 재방문 의도에 미치는 영향 : 중국 상해를 중심으로

장멍멍 ( Zhang Meng-meng ),김진강 ( Kim Jin-kang ) 동북아관광학회 2023 동북아관광연구 Vol.19 No.1

21세기는 전염병의 시대가 되었다. 전 세계적 전염병의 확산으로 국가 간 이동이 제한되고 유동 인구가 감소하였으며 이에 따라 관광수요도 꾸준히 감소했다(백방림, 2021). 코로나19 대유행이 장기화함에 따라 관광 분야의 사회적, 경제적 타격이 심화하고 있다(송혜민·김홍범, 2022). 현재 코로나19가 세계적인 전염병으로 확산한 만큼 국제 관광시장이 전면 회복되기까지는 상당한 시간이 걸릴 것으로 보인다(손효리·김영현, 2021). 그러나 중국에서 코로나19 환경 속에서 도시관광에 관한 연구가 부족하다. 따라서 본 연구는 코로나19 환경 속에서 중국 국내 도시 상해 여행 경험이 있는 중국 관광객이 관광지를 선택할 때 도시관광 선택속성 요인에 대한 중요성과 만족, 이런 결과가 전체 관광 만족도에 미치는 영향을 파악하고 만족도가 재방문 의도에 미치는 영향을 파악하기 위한 것이다. 아울러 이런 요인을 분석해 관광산업의 이해관계자들이 코로나 환경에서 관광정책 및 마케팅 전략을 수립할 수 있는 기초자료를 제공하고자 한다. 본 연구를 위해 2021년 9월 16일부터 10월 16일까지 코로나19 환경에서 상해 여행경험이 있는 중국 관광객들을 대상으로 온라인 설문조사를 실시하였다. 총 500부의 설문지를 배포하였으며 불성실하게 응답한 설문지를 제외하고 237부를 최종 분석에 이용하였다. 연구결과, 도시관광 선택속성(매력성, 서비스품질, 접근성, 비용성, 방역수준)에서 방역수준, 매력성, 접근성과 비용성은 만족도에 유의적인 영향을 미쳤지만, 서비스품질은 만족도에 미치는 영향 유의하지 못한 것으로 나타났다. 특히 방역수준이 만족도에 미치는 영향이 큰 것으로 나타났다. 한편, 매력성, 접근성, 비용성은 만족도에 유의적인 영향을 미칠 수 있는 것으로 나타났다. 이러한 결과를 토대로 하여 학술적, 실무적 시사점을 제시하였다. The 21st century has become an era of infectious diseases. Due to the spread of infectious diseases around the world, movement between countries was restricted, the floating population decreased, and tourism demand decreased steadily(Baekbangrim, 2021). As the COVID-19 pandemic is prolonged, social and economic damage in the tourism sector is intensifying(Song Hye-min and Kim Hong-beom, 2022). Currently, as COVID-19 has spread to a global epidemic, it will take a considerable amount of time for the international tourism market to fully recover(Son Hyo-ri and Kim Young-hyun, 2021). However, in China, there is a lack of research on urban tourism in the COVID-19 environment. Therefore, this study aims to understand the importance and satisfaction of urban tourism selection attributes when Chinese tourists with experience in Shanghai, China, in the COVID-19 environment, and the effect of satisfaction on the intention to revisit. In addition, by analyzing these factors, we intend to provide basic data for stakeholders in the tourism industry to establish tourism policies and marketing strategies in the COVID-19 environment. For this study, an online survey was conducted on Chinese tourists who have traveled to Shanghai in the COVID-19 environment from September 16 to October 16, 2021. A total of 500 questionnaires were distributed, and 237 copies were used for the final analysis, excluding the questionnaires that were faithfully answered. As a result of the study, quarantine level, attractiveness, accessibility, and cost in urban tourism selection attributes(attractive, service quality, accessibility, and quarantine level) had a significant effect on satisfaction, but service quality was not significant. In particular, it was found that the level of quarantine had a large effect on satisfaction. On the other hand, it was found that attractiveness, accessibility, and cost can have a significant effect on satisfaction. Based on these results, academic and practical implications were presented.

A magnetostrictive self-powered biosensor based on Au-BaTiO3-FeGa & PDMS

Qiang Zhang,Meng Xu,Yan Liu,Chunyan Zhang,Rui Zhang,Zhiyuan Fu,Jianlong Ji,Riguang Zhang,Shengbo Sang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.117 No.-

Piezoelectric flexible sensors have been used to detect biomolecules such as sweat and glucose because oftheir passive, simple structure and high sensitivity. This paper proposes a novel flexible piezoelectric Au-BaTiO3-FeGa & PDMS biosensor in which magnetostrictive deformation amplifies the surface stress generatedby biomolecules combining on the thin film. The modification process of bovine serum albumin(BSA) binding with the sensor was initially determined by the first principles approach. Then, the sensingmechanism was verified by finite-element simulation. Based on the simulation results, flexible Au-BaTiO3-FeGa & PDMS biosensors were prepared, modified, and measured. The structure, modification,and detection of the sensors were analyzed by digital microscopy, Fourier transform infrared spectrometry(FTIR), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The responses ofthe biosensors detecting different BSA solution concentrations under magnetic fields were then investigated. Experimental results indicate that the biosensor has the highest sensitivity under a magnetic fieldof 30 mT.

<구운몽>과 <옥루몽>에 나타난 정처(正妻)인물의 비교 연구

장몽몽(Zhang Meng-meng) 어문연구학회 2021 어문연구 Vol.109 No.-

이 연구는 <구운몽>과 <옥루몽>에 등장하는 정처인물을 비교 검토하는 것이 주목적이다. 이를 위해 먼저 <구운몽>과 <옥루몽> 정처인물의 형상화 양상을 살피고, 이어서 정처인물의 서사적인 기능을 검토하였다. 이를 바탕으로 정처인물의 변화와 문학사적 의의를 조망해 보았다. 먼저 두 작품에 등장하는 정처인물의 형상화 양상을 살폈다. 두 작품의 정처인물은 각기 출생과 외모가 출중하다. <구운몽>의 경우 정부인과 이부인 공히 천상의 선녀가 적강한 인물로 외모가 관념적인 미인으로 형상화되었다. 예능적 자질도 뛰어나 음악적인 식견이나 문재도 돋보인다. 그런가 하면 품성과 행실도 좋아 가족공동체를 위하여 자신의 희생도 마다하지 않는다. <옥루몽>의 경우 윤부인과 황부인의 형상화가 상반된다. 윤부인은 전형적인 중세 사대부 집안의 여성인물로 특출한 외모를 가졌지만 수동적인 성격이다. 모든 행위도 유교적인 이치에 준하고 있다. 황부인은 개인적인 욕망을 추구하는 인물이다. 재상가의 여식으로 그 출신이 돋보이지만 외모에 있어서는 부족한 편이다. 예능적인 자질은 돋보이지 않지만 악행을 일삼아 갈등을 유발하는 주체라 하겠다. 다음으로 정처인물의 서사적인 기능을 분석하였다. <구운몽>이나 <옥루몽>의 정처인물은 서사적인 기능을 달리하고 있다. <구운몽>의 정처인물은 중세적인 공동체의 이념을 추수하는 공통점이 있다. 개인보다는 집단을 중시했던 유교이념을 충실히 수행하는 것으로 문학적인 효능감을 발휘한다. 두 정처가 개인적인 의지를 관철하기도 하는데 이것은 갈등을 조성하여 서사성을 고양하는 데 일익을 담당한다. <옥루몽>의 정처인물은 보수적인 중세인물과 근대적인 진보인물로 형상화된다. 그래서 서사적인 기능에서 상당한 차이를 보인다. 윤부인은 고답적인 유교이념을 추수하는 전범화된 여성인물로 서사에 내재되어 있다. 반면에 황부인은 개인적인 이익과 욕망 때문에 악행도 마다하지 않는다. 그 결과 사건을 추진하는 동력이 되어 소설의 흥미성 제고에 크게 기여한다. 끝으로 정처인물의 변화와 문학사적 의미를 파악하였다. <구운몽>의 정처인물은 개인적인 욕구가 있을지라도 그것을 전면에 내세우지 않고 유교적인 덕목을 실천하는 데 집중한다. 중세적인 이념을 담은 조화의 문학에 적합한 인물이라 할 수 있다. <옥루몽>의 경우 중세적인 이념을 고수한 인물은 서사적 기능이 대폭 축소되고, 근대적인 욕망을 담은 인물의 기능은 크게 확장된다. 이것은 중세에서 근대로 변화하는 문학사의 사정을 정처인물이 증명하는 바라 할 수 있다. 정처인물의 문학사적 의미를 바로 여기에서 찾을 수 있다. The main focus of this study is to look at the diachronic changes in the characters of the true wife figures in Guwoonmong and Oklumong. To this end, the figuration aspect of the characters of the Guwoonmong and Oklumong were first examined, followed by the epic functions of the true wife figures. Based on this, the diachronic change and literary significance was overlooked. First of all, the figuration aspects of the true wife characters were examined in the two works. The characters of the two works are outstanding in their birth and appearance. In the case of Guwoonmong, both Mrs. Jeong and Mrs. Lee were portrayed as an ideal beauty, a figure descended from the heavenly fairy. They have great artistic qualities, so they stand out in musical knowledge and literature. Their personality and behavior are also good, so they do not mind sacrificing themselves for the family community. In the case of Oklumong, the images of Mrs. Yoon and Mrs. Huang are opposite. Mrs. Yoon has an exceptional appearance as a female figure from a typical medieval aristocrat family, but she is passive. All her actions are in accordance with Confucian concept. Mrs. Huang is a person who pursues personal desire. Her social status stands out as she is the daughter of the Chancellor, but her appearance lacks. Her artistic qualities are not outstanding, and she causes conflict by misbehavior. Next, the epic functions of true wife figures were analyzed. The true wife characters of Guwoonmong and Oklumong have different narrative functions. The characters of the Guwoonmong have something in common to pursue medieval community ideologies. It demonstrates literary efficacy by faithfully carrying out Confucianism, which valued groups rather than individuals. The two true wife characters also carry out their personal needs, which are responsible for raising the narrative by creating conflicts. The true wife characters of Oklumong are shaped as conservative medieval and modern progressive figures. So there is a significant difference in narrative function. Mrs. Yoon is embedded in the narrative as a typical woman character who pursues classical Confucianism. On the other hand, Mrs. Huang does not mind evil deed because of her personal interests and desires. As a result, it contributes greatly to raising the interest of the novel by becoming the driving force behind the event. Finally, the meaning of literary history and diachronic change of the true wife figures was understood. The character of Guwoonmong focuses on practicing Confucian virtues. Even if a personal desire exists, it is not put at the forefront. This character is well suited to the literature of harmony with medieval ideologies. In the case of Oklumong, the person who adheres to medieval ideologies greatly reduces one’s epic function and the function of the person who contains modern desires greatly expands. This can be a testament to the changing situation from medieval literature to modern literature. The literary historic meaning of true wife figure can be found from here.

Amorphous Materials : QUASICRYSTAL PHASE AND FRACTAL MORPHOLOGY IN RAPIDLY QUENCHED Al - Mn ALLOY

Meng Zhang,Chunyong Hong,Pingsheng Yang 대한금속재료학회 ( 구 대한금속학회 ) 1995 Advanced Material and Processing Vol.2 No.-

Fractal Structures and Their Computer Simulation in Rapidly Quenched Al - Mn Alloys

Zhang, Meng,Hong, Chunyong,Dai, Hong,Yang, Pinsheng,Tan, Yuxi 대한금속재료학회(대한금속학회) 1999 METALS AND MATERIALS International Vol.5 No.1

The microstructure of rapidly quenched Al-Mn alloys were studied by TEM and SEM. The icosahedral phase in Al-Mn alloys was observed to show various types of fractal morphologies, which may be classified into four kinds: 1) dendritic shape, 2) flower-like shape, 3) granular shape and 4) grain-oscillation shape. After being digitized by a computer, the fractal dimensions (D) of these morphologies were calculated. Based on the traditional diffusion limited aggregation (DLA) model computer simulations were made with two-seeded and many-seeded clusters, which reflect the growing mechanism of some fractal structures in Al-Mn alloys. It is suggested that these fractal structures are formed by many icosahedral particles about 20 nm in size aggregating during the rapid quenching process.

Potential Therapeutic Targets for the Primary Gallbladder Carcinoma: Estrogen Receptors

Zhang, Ling-Qiang,Zhang, Xiu-De,Xu, Jia,Wan, Yong,Qu, Kai,Zhang, Jing-Yao,Wang, Zhi-Xin,Wei, Ji-Chao,Meng, Fan-Di,Tai, Ming-Hui,Zhou, Lei,Liu, Chang Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.4

Gallbladder carcinoma, the most frequent malignant neoplasm of the biliary tract system, has always been considered to feature late clinical presentation and diagnosis, limited treatment options and an extremely poor prognosis. In recent years, while the incidence of gallbladder cancer has appeared to be on the increase, the available treatment methods have not greatly improved survival of the affected patients. Thus, exploring new therapeutic targets for this devastating disease is an urgent matter at present. Epidemical studies have demonstrated that the incidence of gallbladder carcinoma exhibits a distinct gender bias, affecting females two to three times more than males, pointing to crucial roles of estrogen. It is well known that estrogen acts on target tissues by binding to estrogen receptors (ERs), which are mainly divided into three subtypes, $ER{\alpha}$, $ER{\beta}$ and $ER{\gamma}$. $ER{\alpha}$ and $ER{\beta}$ appear to have overlapping but also unique even opposite biological effects. As important pathogenic mediators, ERs have been considered to relate to several kinds of tumors. In gallbladder carcinoma tissue, ERs have been shown to be positively expressed, and ERs expression levels are associated with differentiation and prognosis of this cancer. Nevertheless, the exact mechanisms of estrogen inducing growth of gallbladder carcinoma remain poorly understood. On the base of the current investigations, we deduce that estrogen participates in promotion of gallbladder carcinoma by influencing the formation of gallstones, stimulating angiogenesis, and promoting abnormal proliferation. Since ERs mediate the carcinogenic actions of estrogen in gallbladder, and therapy targeting ERs may provide new directions for gallbladder carcinoma. Therefore, it should be stressed that ERs are potential therapeutic targets for gallbladder carcinoma.

PM2.5 in poultry houses synergizes with Pseudomonas aeruginosa to aggravate lung inflammation in mice through the NF-κB pathway

Meng Li,Xiuli Wei,Youzhi Li,Tao Feng,Linlin Jiang,Hongwei Zhu,Xin Yu,Jinxiu Tang,Guozhong Chen,Jianlong Zhang,Xingxiao Zhang 대한수의학회 2020 Journal of Veterinary Science Vol.21 No.3

Background: High concentrations of particulate matter less than 2.5 µm in diameter (PM2.5) in poultry houses is an important cause of respiratory disease in animals and humans. Pseudomonas aeruginosa is an opportunistic pathogen that can induce severe respiratory disease in animals under stress or with abnormal immune functions. When excessively high concentrations of PM2.5 in poultry houses damage the respiratory system and impair host immunity, secondary infections with P. aeruginosa can occur and produce a more intense inflammatory response, resulting in more severe lung injury. Objectives: In this study, we focused on the synergistic induction of inflammatory injury in the respiratory system and the related molecular mechanisms induced by PM2.5 and P. aeruginosa in poultry houses. Methods: High-throughput 16S rDNA sequence analysis was used for characterizing the bacterial diversity and relative abundance of the PM2.5 samples, and the effects of PM2.5 and P. aeruginosa stimulation on inflammation were detected by in vitro and in vivo. Results: Sequencing results indicated that the PM2.5 in poultry houses contained a high abundance of potentially pathogenic genera, such as Pseudomonas (2.94%). The lung tissues of mice had more significant pathological damage when co-stimulated by PM2.5 and P. aeruginosa, and it can increase the expression levels of interleukin (IL)-6, IL-8, and tumor necrosis factor-α through nuclear factor (NF)-κB pathway in vivo and in vitro. Conclusions: The results confirmed that poultry house PM2.5 in combination with P. aeruginosa could aggravate the inflammatory response and cause more severe respiratory system injuries through a process closely related to the activation of the NF-κB pathway.

Dynamic response of an overhead transmission tower–line system to high-speed train-induced wind

Meng Zhang,Ying Liu,Hao Liu,Guifeng Zhao 한국풍공학회 2022 Wind and Structures, An International Journal (WAS Vol.34 No.4

The current work numerically investigates the transient force and dynamic response of an overhead transmission tower–line structure caused by the passage of a high-speed train (HST). Taking the CRH2C HST and an overhead transmission tower–line structure as the research objects, both an HST–transmission line fluid numerical model and a transmission tower–line structure finite element model are established and validated through comparison with experimental and theoretical data. The transient force and typical dynamic response of the overhead transmission tower–line structure due to HST-induced wind are analyzed. The results show that when the train passes through the overhead transmission tower–line structure, the extreme force on the transmission line is related to the train speed with a significant quadratic function relationship. Once the relative distance from the track is more than 15 m, the train-induced force is small enough to be ignored. The extreme value of the mid-span dynamic response of the transmission line is related to the train speed and span length with a significant linear functional relationship.

Progression of NETs Correlating with Tumor-Related Diseases

Zhang, Le-Meng,Chen, Jian-Hua Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.17

As an important component of innate immune system, neutrophil has been involved in many other physiological processes, including tumor-related diseases. In 2004, the phenomenon of NETs was reported for the first time. Extracellular decondensed chromatin, released from activated neutrophils, forms a network structure, which is NETs. This review focuses on the function of NETs in tumor cell proliferation, metastasis, and tumor-associated thrombosis; it also explores the application of NETs specific markers in the diagnosis of pre-thrombotic state and tumor associated diseases; it also explores NETs inhibitor for the treatment of tumor-related diseases. In view of the rapid development of NETs, it may provide new therapeutic targets for tumor-associated thrombosis, and even tumor itself.

Research of Lower Limb Rehabilitation Training Gait

Meng Zhang,Xiao li Wang,Pan Su,Yang Yudan 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.12

Gait analysis is an important part of the lower limb disorder walking rehabilitation training, based on the research of the walking gait, helpful for recovery equipment control system design has important significance. This article mainly through 3 d motion capture system, the movement of human lower limb joints character such as displacement, velocity, and the body center of gravity test analysis, and in view of the human lower limb joints, four degrees of freedom model is set up, and establish the corresponding mathematical model, and using the simulation software, to verify the rationality of structure, for the future of medical rehabilitation, and provide important data for the intelligent control of the organization.