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In this study, we analyzed the differences in the effects of different forest vacation activities and personality traits on participants' behavioral intentions through two quasi-natural experiments (experimental group-forest therapy and control group-forest tourism), and found that:(1) personality traits of participants in two groups of forest vacation activities were categorized as resilient, overcontroler, and emotional;(2) there were significant differences in the results of behavioral intentions among the different class of personality traits, and the overall distribution of resilient > overcontroler > emotional type groups was shown; (3) under the interaction effect of the two groups of forest vacation activities and the three personality traits, the results showed that the behavioral intention was influenced by both the class of personality traits and the forest vacation activities synergistic effects. The findings of this study expand the study of the subjective influences on behavioral intentions of forest therapists at the theoretical level, and at the practical level, they help to deepen the forest therapy products and provide empirical evidence for the rational arrangement of experiential contents.(以森林康养为实验组、森林旅游为对照组进行准自然实验，分析了不同森林度假活动与人格特质类别对被试行为意图的影响，结果发现：（1）2组森林度假活动参与者人格特质分为心理弹性型、过度控制型和情绪型3类；（2）不同人格特质类别群体之间的行为意图提升存在显著差异，且整体呈现心理弹性型>过度控制型>情绪型的特征；（3）在2组森林度假活动和3种人格特质的交互作用下，行为意图受人格特质与森林度假活动协同影响。在理论层面拓展了森林康养者行为意图的主体影响因素研究，在实践层面有助于深化森林康养产品开发，为合理安排体验内容提供实证依据。)

为了有效评估大豆球蛋白抗原性变化，对热处理后的大豆球蛋白进行体外模拟消化实验，考察其体外消化稳定性。首先采用碱溶酸沉法从脱脂大豆粉中提取大豆球蛋白，然后将其经400 MPa超高静压处理15 min后进行加热（70、90、110、130 ℃）处理20 min，然后进行体外模拟消化实验，采用SDS-PAGE、邻苯二甲醛（OPA）法和间接竞争酶联免疫（ELISA）法研究消化过程中大豆球蛋白的蛋白质分子质量、水解度和抗原性的变化。结果表明：经体外模拟消化实验后，与未处理样品相比，不同温度热处理后大豆球蛋白的蛋白质条带逐渐变浅，生成更多的小分子蛋白；在胃消化过程中，未处理和热处理大豆球蛋白的水解度逐渐增强，在肠消化过程中，经过90、110、130 ℃热处理的大豆球蛋白水解度总体先增加后降低；与未处理的大豆球蛋白相比，热处理大豆球蛋白经过胃肠消化后抗原抑制率显著下降，最低可从87%降至4%。大豆球蛋白经过热处理，通过胃肠消化后可显著降低其抗原性。 In order to effectively evaluate the changes of antigenicity of soybean globulin, in vitro simulated digestion experiments on heating treated soybean globulin were carried out and its in vitro digestion stability was investigated. Soybean globulin was extracted from defatted soybean powder by alkali-soluble and acid-precipitation method. It was treated with ultra-high static pressure of 400 MPa for 15 min and then heated (70, 90, 110, 130 ℃) for 20 min for in vitro simulated digestion experiment. The changes of molecular weight, degree of hydrolysis and antigenicity during digestion were studied by SDS-PAGE, o-phthalaldehyde(OPA) method and indirect competitive enzyme-linked immunosorbent assay (ELISA). The results showed that after the in vitro simulated digestion experiment, compared with the untreated samples, the protein bands treated at different temperatures gradually became shallower and more small molecule proteins were generated. In the process of gastric digestion, the degree of hydrolysis of protein before and after treatment gradually increased, and in the process of intestinal digestion, the degree of hydrolysis of protein treated at 90,110,130 ℃increased first and then decreased. Compared with the untreated protein, the antigen inhibition rate of heat treated soybean globulin decreased from 87% to 4% after digestion, which significantly reduced its antigenicity. After heating treatment of soybean globulin, its antigenicity was reduced significantly through gastrointestinal digestion.

柔性直流输电是未来电网的发展趋势，而短路电流水平是制约柔直电网运行与发展的瓶颈，因此有必要研究柔性直流输电系统换流站交流侧发生短路故障时输出的短路电流水平。通过分析柔性直流系统中换流器的运行方式与控制原理，量化换流器输出短路电流幅值和相位的影响因素，文章得出换流站近区交流系统三相短路故障发生后换流站输出短路电流的解析计算公式，并通过搭建三端柔性直流输电系统，验证所提理论分析方法的正确性。该研究为柔性直流输电系统接入现有电力系统后三相短路电流的计算提供了修正方法。

模块化多电平换流器是柔性直流输电技术中的重要组成部分，柔性直流电网中直流过电压对整个系统的危害很大，因此对换流器闭锁退出运行后出现过电压进行仿真和机理分析。分析了换流器中子模块的6种工作状态和MMC的等效模型，根据换流站类型分为送端和受端换流站两种情况，基于PSCAD/EMTDC平台仿真换流器因故障闭锁后直流电压的变化情况，并根据等效电路分析换流站端口直流电压的动态发展过程和机理。由仿真结果发现，PSCAD/EMTDC仿真软件具有一定的缺陷，不能真实地反映断路器的断开，会产生虚拟过电压，并进一步分析了换流站闭锁后电压的变化趋势和产生原因。

鉴于单通道解调系统一次可检测的光栅波长数目有限,同时为兼顾FBG（光纤布拉格光栅）解调系统与上位机通信的稳定性与高速性,结合波分复用与空分复用技术,研制了多通道、多通信端口的FBG解调系统。通过控制16路光开关的光路切换,可实现对16通道FBG传感网的空分复用,对各通道传感器中心波长进行解调。测试结果表明,解调系统中心波长分辨率为1pm,一次采集光栅波长信息的时间为620ms,16个光通道的FBG传感信息更新最短时间不大于10s,可对约200只光纤光栅传感器进行有效监测。

在智能电网中,电流测量是电力系统中继电保护、电能计量、系统监测和系统分析的关键,其测量的精度与可靠性直接关系到电力系统能否安全、可靠和经济地运行。文章比较了电磁式电流传感器和光纤电流传感器的性能,介绍了目前3种最主要的光纤电流传感器的测量原理,并指出其各自的优点及存在的问题。同时,综述了国内外关于光纤电流传感器的最新研究现状及进展,最后对光纤电流传感器的应用和研究前景进行了展望。

【目的】探讨过氧化氢酶（eatalase）对高糖诱导的NIT-1胰岛B细胞成对同源异形盒转录因子6（Pax6）基因表达下降的影响。【方法】体外培养NIT-1胰岛B细胞24h，分4个处理组：低糖组（NG），低糖＋过氧化氢酶组（NG＋C），高糖组（FIG），高糖＋过氧化氢酶组（HG＋C），用2，7二氯氢化荧光素二酯（H2DCF-DA）染色检测活性氧簇（ROS）的水平，RT-PCR半定量检测Pax6 mRNA表达。【结果】HG组ROS水平（1．10±0．24）明显高于NG组（0．95±0．26），P〈0．05；FIG＋C组ROS水平（0．94±0．26）低于HG组，P〈0．05；HG组Pax6 mRNA表达（0．64±0．09）低于NG组（0．93±0．12），P〈0．05；HG±C组Pax6 mRNA表达（0．74±0．11）高于HG组，但差异无统计学意义，P〉0．05。【结论】高糖可使NIT-1胰岛β细胞内ROS产生增加，胰岛β细胞特异性转录因子Pax6基因表达下降，给予ROS的抗氧化剂过氧化氢酶后，Pax6基因表达有所恢复，但差异无统计学意义。

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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BACKGROUND: With the increasing demand for edentulous jaw restoration, “All-on-4” concept is widely used. The load transfer mode of implant is different from that of natural tooth. The three-dimensional finite element analysis can study the stress distribution of implants and surrounding bone tissues under functional loading. On this basis, it provides research methods for finding suitable implant materials, optimizing implant geometry, and designing clinical surgical protocols. OBJECTIVE: To review researches related to three-dimensional finite element analysis in “All-on-4” concept. METHODS: Relevant literature published from 2003 to 2023 was searched in CNKI and PubMed databases with the search terms of “finite element method; All-on-4; edentulous; biomechanics” in Chinese and English. Finally, 65 articles were included for review. RESULTS AND CONCLUSION: (1) In the case of insufficient horizontal bone mass, we can choose to apply narrow diameter implants, but we need to pay attention to the effect of the presence of the cantilever on the stress distribution and reduce the risk of failure. (2) The “All-on-4” concept reduces the stress distribution of bone by tilting the distal middle implant, but the ideal angle of the distal implant tilt in different jaw types requires further study. (3) The presence of cantilevers increases the risk of implant failure, and keeping the cantilever length/AP distance ratio at 0.9 helps to minimize mechanical complications. (4) When a framework is made of a material with a lower elastic modulus, the stress on the framework itself will be smaller, but it will increase the stress on the implant, prosthetic screw, abutment and peri-implant bone. On the contrary, when a material with a higher elastic modulus is used, it can reduce the stress on the prosthetic components, implants and peri-implant bone in the restoration, but the stress on the framework itself is higher. (5) The “All-on-4” concept allows for a better mechanistic balance, but requires the development of a long-term, effective treatment program that is tailored to the patient’s specific situation. (6) Proper occlusal scheme is the key to the success of implant treatment, and there is no difference between canine-guide occlusion and group function occlusion in terms of the longevity of the restoration. However, there are many factors that influence occlusal design, and further in vitro experiments as well as a number of clinical studies are needed to explore the ideal occlusal design of the “All-on-4”. [ABSTRACT FROM AUTHOR]

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Guide signs have a very good role in guiding people's travel, and good design of guide signs can improve the efficiency of drivers. The amount of sign information at the nodes in the road network affects the driver's reading of the sign information, which in turn affects the access efficiency of the whole road network. Therefore, by introduced the amount of guidance sign information from nodes as a penalty coefficient, the cost of the road segment was calculated, and a guidance path planning model between origin to destination (OD) was established, Combined with the A∗ algorithm, the entire road network was traversed to obtain the optimal guidance path between ODs. By added guidance information on the guidance path, the coherence of guidance sign information between ODs was improved, guiding drivers can make better path, and reduce traffic pressure in the road network. At last, Select the area from the railway station ( point O) to the People's Hospital ( point D) in Qingyang City, Gansu Province for practical application and analysis. [ABSTRACT FROM AUTHOR]

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Mesoporous materials have attracted significant research interests due to its tunable pore structure, controllable chemical composition, and broad application prospects. Compared with traditional threedimensional mesoporous materials, two-dimensional mesoporous materials have larger specific surface area, shorter diffusion distance, and higher exposure of active sites. Therefore, two-dimensional mesoporous materials exhibit excellent performance in applications such as catalysis, gas adsorption, as well as energy storge and conversion. In this review, based on bottom-up and top-down synthetic strategies, we summarize the research progress of synthetic methods of two-dimensional mesoporous materials in recent years. Then, we discuss their applications in electrochemical energy storage, electrocatalysis, photocatalysis, and gas sensing. Finally, we provide an outlook on the future development directions and challenges of twodimensional mesoporous materials. [ABSTRACT FROM AUTHOR]

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Structural chemistry is a basic compulsory course for chemistry majors. It discusses the structure of atoms, molecules and crystals from a microscopic perspective and establishes the relationship between microstructure and macroscopic properties. The teaching content is abstract, difficult for students to understand, and the teaching hours are short. Therefore, it is necessary to adjust and integrate teaching content reasonably, increase or decrease knowledge appropriately, combine various teaching methods and pay attention to teaching and research in order to cultivate students' interest in learning structural chemistry and stimulate their innovation ability. Moreover, it is essential to integrate ideological and political elements while imparting expertise of structural chemistry in class to cultivate students' feelings of family and country, sense of innovation and social responsibility. Through the exploration and practice of structural chemistry teaching, we integrate moral education, knowledge imparting, and ability training into one, promoting the effective integration of science education and humanities education. [ABSTRACT FROM AUTHOR]

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