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Design and Cryogenic Performance of a Hexapod Platform for a Large Ground-based Wide Field Survey Telescope

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Research in Astronomy and Astrophysics 2024年第1期24卷 178-187页

作者： Yang Yu xue-wen Wang Yu Zhang Jia-Lin Sun Zhen-Bang Xu Jian-Li Wang Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Chinese Academy of Sciences Key Laboratory of On-orbit Manufacturing and Integration for Space Optics System Changchun 130033China University of Chinese Academy of Sciences Beijing 100049China

The thermal gradient is an important factor that causes degradation to the image quality of telescopes. In order to ensure the accurate alignment of the primary focus unit and the primary mirror, the hexapod platform(as a corrector) is investigated in this paper. First, a ground-based telescope with 2.5 m aperture and 3.5 deg field of view is described. The telescope is under construction, and it is expected to be finished in 2023. Second, the hexapod platform with flexure hinges utilized to adjust the primary focus unit is proposed, which is applied as a ***, the inverse kinematics of the platform is established and an open-loop control system is built based on ***, the cryogenic performance test for the hexapod platform is performed. The experimental results show that the resolution and repeatability of the translation for the hexapod platform can be achieved at the micrometer *** resolution and repeatability of the rotation can be achieved at the arc-second level. Therefore, the cryogenic performance of the hexapod platform can meet the optical imaging requirements of the wide-field ground-based telescope. The kinematic analysis and cryogenic performance tests in the paper provide a technical reference for the precise alignment of the primary focus unit and the primary mirror, which can improve the imaging quality of the telescope.

关键词： methods:miscellaneous space vehicles:instruments telescopes miscellaneous

Monitor and Acceptance among Couples in Romantic Relationships:Actor-Partner Interdependence Models Based on the Monitor and Acceptance Theory

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International Journal of Mental Health Promotion 2024年第7期26卷 589-598页

作者： xue wen Yuyang Zhou Jiaxuan Du Xiaoyan Liu Wei Xu Beijing Key Laboratory of Applied Experimental Psychology National Demonstration Center for Experimental Psychology Education(Beijing Normal University)Faculty of PsychologyBeijing Normal UniversityBeijing100875China School of Psychology Nanjing Normal UniversityNanjing210097China College of Business Florida International UniversityMiamiFL 11200USA School of Philosophy Psychology and Language SciencesUniversity of EdinburghEdinburghEH89YLUK

Communication could be an essential part of couples in their daily *** on Monitor and Acceptance Theory(MAT),the present study explored the mediating role of communication in the relationship between mindfulness and relationship quality among college-student *** research examined the dynamic relationship of monitoring and acceptance to relationship satisfaction in the Actor-Partner Interdependence Model(APIM),and the mediating effect of positive or negative communications in these relationships.A total of 96 pairs of couples in the universities in Nanjing,China participated in the *** measurements were used to measure the momentary levels of their monitor,acceptance,positive/negative communication,and relationship satisfaction.A Hierarchical Linear Model(HLM)was used to deal with the *** showed that the women’s monitor facet of state mindfulness negatively predicted men’s relationship satisfaction through women’s negative communication,and the women’s acceptance facet of state mindfulness positively predicted women’s relationship satisfaction through women’s positive and negative communication at the within-person *** study highlights the importance of cooperation in monitoring and acceptance for couples to own and hold high levels of relationship satisfaction.

关键词： Romantic relationship communication mindfulness monitor acceptance

A topology approach to overcome the pore size/volume trade-offs for autonomous indoor humidity control

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Science China Chemistry 2024年第9期67卷 2968-2974页

作者： Zhi-Shuo Wang xue-wen Zhang Kai Zheng Xiao-Xian Chen Dong-Dong Zhou Jie-Peng Zhang MOE Key Laboratory of Bioinorganic and Synthetic Chemistry GBRCE for Functional Molecular Engineering School of ChemistryIGCME Sun Yat-Sen University Chemistry and Chemical Engineering Guangdong Laboratory

Autonomous indoor humidity control is gaining more and more attention but is limited by the trade-offs among pore volume,pore size and water stability of water adsorbents. We solve this problem by using a unique coordination network topology combined with hydrolytically stable M（III） carboxylate clusters. By extending the ligand length from 9.0 to 11.2 and 13.7 ?, the pore volume significantly increases from 0.99 to 1.40 and 1.78 cm3g–1, which proportionally increases the saturated water adsorption capacity. Meanwhile, the pore size slightly increases from 10.4 to 11.0 and 13.5 ?, which restricts the isotherm inflection pressure and hysteresis width to meet the requirement of indoor humidity control. Large single-crystals suitable for Xray diffraction studies were obtained by using Fe（III） salts, while isostructural frameworks with sufficiently high water stabilities were synthesized by using Cr（III） salts, which offer record working capacity of 0.90 and 1.10 g g–1for indoor humidity control.

关键词： metal-organic frameworks water adsorption indoor humidity control water stability pore engineering

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Exploration of potential biomarkers and therapeutic targets for trauma-related acute kidney injury

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Chinese Journal of Traumatology 2024年第2期27卷 97-106页

作者： Peng Qi Meng-Jie Huang Wei Wu xue-wen Ren Yong-Zhi Zhai Chen Qiu Hai-Yan Zhu Department of Emergency First Medical Center of Chinese PLA General HospitalBeijing100853China Department of Nephrology.First Medical Center of Chinese PLA General Hospital Beijing100853China Department of Anesthesiology.First Medical Center of Chinese PLA General Hospital Beijing100853China Department of Orthopedics Fourth Medical Center of Chinese PLA General HospitalBeijing100853China

Purpose:Acute kidney injury(AKI)is one of the most common functional injuries observed in trauma ***,certain trauma medications may exacerbate renal ***,the early detection of trauma-related AKI holds paramount importance in improving trauma ***:Qualified datasets were selected from public databases,and common differentially expressed genes related to trauma-induced AKI and hub genes were identified through enrichment analysis and the establishment of protein-protein interaction(PPI)***,the specificity of these hub genes was investigated using the sepsis dataset and conducted a comprehensive literature review to assess their *** raw data from both datasets were downloaded using R software(version 4.2.1)and processed with the"affy"package19 for correction and ***:Our analysis revealed 585 upregulated and 629 downregulated differentially expressed genes in the AKI dataset,along with 586 upregulated and 948 downregulated differentially expressed genes in the trauma ***,the establishment of the PPI network and subsequent topological analysis highlighted key hub genes,including CD44,CD163,TIMP metallopeptidase inhibitor 1,cytochrome b-245 beta chain,versican,membrane spanning 4-domains A4A,mitogen-activated protein kinase 14,and early growth response ***,their receiver operating characteristic curves displayed areas exceeding 75%,indicating good diagnostic ***,our findings postulated a unique molecular mechanism underlying trauma-related ***:This study presents an alternative strategy for the early diagnosis and treatment of trauma-related AKI,based on the identification of potential biomarkers and therapeutic ***,this study provides theoretical references for elucidating the mechanisms of trauma-related AKI.

关键词： Trauma Acutekidney injury Bioinformatic analysis Differentially expressed genes Biomarker

A universal polymer-assisted route to fabricate Zr-doped TiO2 nanocomposite: boosting reactive desulfurization

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Tungsten 2024年第3期6卷 596-609页

作者： Yue Du Ping Li Zhi-Yi Zhong wen-xue Chen Yi-Si Liu Yun-Long Xie Li-Na Zhou Kai Wang Hubei Key Laboratory of Photoelectric Materials and Devices College of Material Science and Engineering Hubei Normal University National Laboratory of Solid State Microstructures Nanjing University College of Urban and Environmental Sciences Huangshi Key Laboratory of Prevention and Control of Soil Pollution Hubei Normal University School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University

A series of transition metal ion-doped TiO2composites were prepared by polyethyleneimine-assisted solvent-free *** to the similar electronegativity and ionic radius of Ti and Zr ions,the introduction of Zr element to TiO2can effectively improve its surface acidity and introduce more defect sites on the ***-fabricated Zr-doped TiO2nanocomposite exhibits the formation of Zr-Ti bond,strong surface acidity,connected mesoporous channels,and relatively high *** remarkable properties contribute to its adsorption-oxidation-desulfurization capacity toward thiophene-type sulfides,which can remove 500 ×10-6dibenzothiophene from the model fuel within 100 min at low reaction *** polymer-induced self-assembly method can reduce organic solvent usage,pollutant emissions,and energy consumption,which provides an efficient and practical way to prepare porous metal oxide-based catalysts in future.

关键词： Oxidative desulfurization Transition metal ion-doped TiO 2 nanocomposite Dibenzothiophene Solvent-free self-assembly method

Pathologically successful conversion hepatectomy for advanced giant hepatocellular carcinoma after multidisciplinary therapy:A case report and review of literature

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1647-1659页

作者： Ju-Hang Chu Lu-Yao Huang Ya-Ru Wang Jun Li Shi-Long Han Hao Xi wen-xue Gao Ying-Yu Cui Ming-Ping Qian Department of General Surgery Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Department of Interventional and Vascular Surgery Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Department of Pathology Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Clinical Research Management Office Shanghai Tenth People’s HospitalShanghai 200072China Department of Cell Biology Institute of Medical GeneticsState Key Laboratory of CardiologyTongji University School of MedicineShanghai 200331China

BACKGROUND Hepatocellular carcinoma(HCC)is one of the leading causes of death due to its complexity,heterogeneity,rapid metastasis and easy recurrence after surgical *** demonstrated that combination therapy with transcatheter arterial chemoembolization(TACE),hepatic arterial infusion chemotherapy(HAIC),Epclusa,Lenvatinib and Sintilimab is useful for patients with advanced *** SUMMARY A 69-year-old man who was infected with hepatitis C virus(HCV)30 years previously was admitted to the hospital with abdominal *** computed tomography(CT)revealed a low-density mass in the right lobe of the liver,with a volume of 12.9 cm×9.4 cm×15 cm,and the mass exhibited a“fast-in/fast-out”pattern,with extensive filling defect areas in the right branch of the portal vein and an alpha-fetoprotein level as high as 657 ng/***,he was judged to have advanced *** treatment,the patient received three months of Epclusa,three TACE treatments,two HAIC treatments,three courses of sintilimab,and twenty-one months of *** the third month of treatment,the patient developed severe side effects and had to stop immunotherapy,and the Lenvatinib dose had to be *** pathological diagnosis indicated a complete *** patient recovered well after the operation,and no tumor recurrence was *** Multidisciplinary conversion therapy for advanced enormous HCC caused by HCV infection has a significant *** drug adjustments should be made during any treatment according to the patient's tolerance to treatment.

关键词： Hepatocellular therapy Conversion hepatectomy Interventional therapy Epclusa Lenvatinib Sintilimab Case report

国际经验视角下我国老龄友好型城市的构建路径研究

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当代经济管理 2024年第6期46卷 62-73页

作者：文学首都师范大学马克思主义学院北京100048

当前在人口老龄化与城市化快速推进的双重背景下,建设老龄友好型城市有助于缓解我国人口老龄化所带来的经济社会问题,也有助于推动城市的可持续发展。通过对老龄友好型城市的内涵界定、主要评价指标体系展开系统梳理,借鉴全球老龄友好... 详细信息

当前在人口老龄化与城市化快速推进的双重背景下,建设老龄友好型城市有助于缓解我国人口老龄化所带来的经济社会问题,也有助于推动城市的可持续发展。通过对老龄友好型城市的内涵界定、主要评价指标体系展开系统梳理,借鉴全球老龄友好型示范城市的建设经验,我国未来老龄友好型城市的构建路径可归总为若干主要方面:因地制宜构建本土化的老龄友好型城市评价指标体系;以切实满足老龄人口需求为基本出发点构建老龄友好环境;构建“以人为本、综合性”的老龄友好健康服务体系;充分重视老龄人口“资源性”“主体性”作用的发挥;加强政府多部门协作,调动多元社会力量合力建设;处理好积极财政政策与公共财政可负担性之间的关系。我国老龄友好型城市建设应在借鉴国际经验的基础上,充分结合我国本土国情有所侧重持续推进。

关键词：人口老龄化城市化老龄友好型城市指标体系构建路径

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推进农村电商发展缩小城乡消费差距

宏观经济管理 2024年第8期 79-85,92页

作者：温雪广西财经学院经济与贸易学院

随着我国经济社会的快速发展,农村电商已成为缩小城乡消费差距、推动农村经济发展的重要途径。农村网民规模的持续扩大、电商销售额的持续增长、用户习惯的逐步形成以及国家政策的有力支持,共同推动了农村电商的快速发展。然而,物流配... 详细信息

随着我国经济社会的快速发展,农村电商已成为缩小城乡消费差距、推动农村经济发展的重要途径。农村网民规模的持续扩大、电商销售额的持续增长、用户习惯的逐步形成以及国家政策的有力支持,共同推动了农村电商的快速发展。然而,物流配送挑战、互联网基础设施不足、数字素养和技能差距、商品质量和售后服务问题等,仍是制约农村电商发展的关键因素。为此,应通过优化农村物流配送系统、加强农村互联网基础设施建设、提升农村居民数字素养、强化商品质量监管和售后服务等途径,为缩小城乡消费差距、实现农业强国和乡村振兴提供有力支撑。

关键词：农村电商城乡消费差距乡村振兴

Groundwater and environmental challenges in Asia

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Journal of Groundwater Science and Engineering 2024年第2期12卷 223-236页

作者： Yan-pei Cheng Fa-wang Zhang Hua Dong xue-ru wen Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Key Laboratory of Groundwater Sciences and Engineering Ministry of natural ResourcesZhengding 050803HebeiChina Center for Hydrogeology and Environmental Geology Survey China Geological SurveyBaoding 071051HebeiChina

Asia stands out as the most populous and geographically diverse region *** pressing issues of water resource development and the resulting ecological impacts are exacerbated by the region's rapid population growth and economic ***,a vital source of water in Asia,faces significant disparities in distribution and suffers from unsustainable exploitation *** study applies groundwater system theory and categorizes Asia into 11 primary groundwater systems and 36 secondary ones,based on intercontinental geological structures,climate,terrain,and hydrogeological *** of the end of 2010,Asia's assessed groundwater resources totalled 4.677×10^(9) m^(3)/a,with exploitable resources amounting to 3.274×10^(9) m^(3)/*** considering the geological environmental impacts of groundwater development and the distinctive characteristics of terrain and landforms,six categories of effect zones with varying distribution patterns are *** current research on Asia's groundwater resources,environmental dynamics,and human impacts aims to provide a theoretical foundation for sustainable groundwater management and environmental conservation in the region.

关键词： Asia Groundwater resources Groundwater quality Ecological environment Environmental impacts