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In this study, 11 traditional settlements (TS) in the East Qinling Mountain area were surveyed, and their formation, evolution, landscape gene and image expression were studied, and the ancient people's cognition of the relationship between human and land contained in TS was discussed. The main conclusions are as follows: the TS in the East Qinling Mountain area can be divided into two types according to whether it is native or not, named immigrant TS or native TS. the immigrant TS also contains four subclasses according to their formation reason, namely, the TS because of eluding the war or turbulence, transforming from troops, moving to show one's ambition, production development. The TS evolution in the East Qinling Mountain area is influenced by the immigration of other ethnic groups, the invasion of bandits, and the change of production mode and life style. From the perspective of landscape gene, the TS in the East Qinling Mountain area include natural landscape gene and human landscape gene. The TS landscape depends on nature macroscopically and transforms nature microscopically, showing the characteristics of building in accordance with the situation of mountains, near to water, being surrounded by solid wall and being maintained by families. Corresponding to the landscape images of Chinese TS, to some extent the image of shanshui and ecological are the reflection of the ancient people's views on nature. The clan image and the image of seeking good fortune are essentially the reflection of the ancients' thinking about survival and development, while the basic image of the TS in the East Qinling Mountain area is "to worship literature and to be kind-hearted, surrounded by well ecological mountain and water".(基于对东秦岭地区11个传统村落的实地考察，研究了该地区传统村落的形成与演化、景观基因及其意象表达，讨论了传统村落所蕴含的古人对人地关系的认识，以及传统村落对乡村振兴与乡村现代化的意义。得到：东秦岭传统村落有世居型和移居型两类，以移居型为主，移居型传统村落按成因不同可分为避乱型、军转型、明志型、生产型4种。东秦岭传统村落的演化受外族群迁入、匪寇侵扰、生产生活方式转变等因素影响，至今仍在发展演化中。东秦岭传统村落的景观基因包括自然景观基因和人文景观基因，其在宏观上依赖自然，在微观上改造自然，呈现因山就势、依水而建、四面围合、家族维系的特征。对应于中国传统村落的基本意象，其中的山水意象和生态意象本质上是古人自然观、生态观的反映，宗族意象和趋吉意象本质上是古人对生存与发展问题思考的反映，而东秦岭传统村落的基本意象为“崇文向善一围落，掩映青山绿水间”。)

Background Handwriting synthesis techniques have been extensively studied in the detection of cognitive impairment in dementia and Parkinson's disease. But handwriting characteristics in older adults with mild cognitive impairment (MCI) still need to be studied further. Objective To explore the differences between the handwriting characteristics of elderly patients with MCI and normal elderly people, and to assess the value of handwriting features in MCI screening. Methods By use of convenience sampling, 33 older adults with MCI were recruited from Huzhou communities from January to April 2022 (observation group), and were compared to age-, sex- and education level-matched 43 community-living older adults with normal cognitive function (control group). The General Information Questionnaire, the Mini-Mental State Examination (MMSE), the Montreal Cognitive Assessment-Basic (MoCA-B), the Activity of Daily Living Scale (ADL), and the 15-item Geriatric Depression Scale (GDS-15) were used to survey subjects. Subjects were invited to complete six handwriting tasks (four are Chinese characters tasks and the other two are graphical drawing tasks) using a dot matrix digital pen to collect their kinematic parameters of handwriting. The classification accuracy, sensitivity and specificity of handwriting characteristics for the diagnosis of MCI were analyzed by discriminant analysis and receiver operating characteristic (ROC) curve, and predictive values of different schemes for MCI were analyzed. Results Compared with the control group, the observation group had higher average pressure in writing (Z=-2.122, P=0.034), longer time in air (Z=-4.302, P

With the normalization of the coronavirus disease (COVID-19) pandemic, people are encouraged to stay at home as much as possible. This has deeply affected the tourism industry. The tourism market size is decreasing sharply, and the restoration of tourism destinations faces great difficulties. Wuhan, the first city to have fought the COVID-19 pandemic head-on, attracted all Chinese people's attention, as everybody said, "come on, Wuhan!" on social media and lent it great support in fighting the pandemic. People discussed the pandemic, became more aware about Wuhan, made plans to travel to Wuhan after the pandemic, and celebrated the stage victory when Wuhan was reopened, which constitutes a meaningful phenomenon in the tourism industry. To reveal the theoretical relationship between people's empathy and travel willingness, this article crawls the microblog data of Wuhan for one month before and after the reopening, from March 24 to April 23, and introduces the destination image as a mediator variable to reflect people's cognition about Wuhan. Then, the data are analyzed and the theoretical model is tested through qualitative and quantitative methods. The main conclusions are as follows: in the post-pandemic period, people's empathy toward Wuhan is dominated by positive emotions, accounting for 85.09% of responses. Respectively, neutral and negative emotions account for 3.42% and 11.49%, respectively. In addition to Wuhan's traditional image, "oriental cherry," "Wuhan hot-dry noodles," a specialty breakfast meal in the Hubei province, many new images of Wuhan have emerged, such as "hero" and "heroic," owing to its tenacious spirit and deep sacrifices during the pandemic. Generally, people have a strong willingness to travel to Wuhan, and the pandemic has transformed it into a special tourism attraction. Many inspiring emotions have emerged, such as "Wuhan," "come on," "hope," "pandemic," "definitely," "go again," and eat "Wuhan hot-dry noodles." According to the hypothesis model test results, empathy affects travel willingness significantly, however, the direct effect between empathy and travel willingness is completely mediated after the destination image is added, and its effect size is 0.191. In conclusion, the influence of empathy upon tourism willingness is fully implemented with the help of the destination image. Empathy between potential tourists and the destination produces emotional resonance, admiration, and other emotions. Such empathy spurs people's insight about the destination, produces a new destination image, and creates a strong travel willingness. This article clarifies why people travel to a specific destination after a public emergency. Additionally, the results suggest that it is necessary to guide the propagation of positive emotions, and consider the possible impact of emergency upon the destination image, by which the tourism industry may reach its revitalization after the pandemic crisis effectively. For Wuhan, it is a plausible approach to rely on people's empathy in the COVID-19 pandemic, and the new destination image can also stimulate people's travel willingness. Furthermore, many new tourism marketing activities based on the destination image may change, such as "come and enjoy the hot-dry noodles," "come and enjoy the oriental cherry again," and may play unique roles in the restoration of the tourism industry.

In order to explore the relationship between glued flange joint damage and the change of dynamic characteristics of composite insulator bushing， the paper takes a ± 800 kV composite insulator as the research object and establishes the finite element model of insulator. Moreover， it presets the damage influence factors in colloid height and angle direction and calculates the dynamic characteristics of composite insulators before and after damage. The results show that the crack and deformation of the adhesive layer interface at the flange joints of composite insulators may reduce the overall structural stiffness. The decrease of the flange joint’s bending stiffness is linear with the flange’s cracking area in colloid height and angle direction. The decreased cracking area of the colloid in the height direction of the flange angle is also approximately linear with the reduced bending stiffness area of the flange joint. The colloid damage in the vibration direction has the most significant impact on the flange stiffness.

Based on the Helmholtz nozzle with higher natural frequency, a double Helmholtz pulse cavitation jet nozzle is designed. The effects of the cavity ratio, cavity distance, flow path diameter and fillet radius between the two resonators on their cavitation effect, turbulent kinetic energy and outlet velocity characteristics are analyzed by numerical simulation. The results show that the change of cavity ratio, cavity distance, flow path diameter and fillet radius will affect the cavitation effect in the nozzle. When the cavity ratio of the resonant cavity is 0.84, the cavity distance is 40 mm, and the flow path diameter between the cavities is 12 mm, the cavitation bubble generation effect in the two resonant cavities is good, the cavity void fraction is high, and the turbulent kinetic energy at the nozzle outlet is strong, which is more conducive to the improvement of the pulse cavitation cleaning efficiency. When the two chamber inlets of the nozzle are rounded, the internal cavitation of the nozzle decreases dramatically and the turbulent kinetic energy decreases, which inhibits the cavitation pulse performance of the nozzle and has a reaction to improve the nozzle cleaning effect. [ABSTRACT FROM AUTHOR]