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Global Geology 2013年第3期16卷 159-163页

作者： xu Xiaohui chen Hui'e WANG Gangcheng College of Construction Engineering Jilin University

On the basis of geological investigating work and experimental studies on slide zone soil of one landslide in Tibet,the authors analyzed granulometric composition,clay mineral composition and physical and mechanical properties for the soil in the slide *** soil samples are gravel containing fine *** larger than 2 mm occupy the main proportion with the content 51.5%--68.5%.The relative content of clay minerals is *** clay minerals are illite smectite mixed layer and kaolinite,and their relative contents are 6%--13% and 4%-11%,*** main mineral ingredient is quartz and the relative content is over 30%.Therefore,the soil’s hydrophily is *** cohesion and internal friction angle are high,causing preferable physical-mechanical features of slide zone *** the basis of the obtained data,the landslide stability is evaluated by means of limit equilibrium *** safety factors are 3.191 and 1.92 respectively under both natural and normal water level *** study results show that the landslide is *** can provide the appropriate basis and reference for landslide stability evaluation and landslide control in Tibet.

关键词： slide zone soil granulometric composition clay mineral composition physical-mechanical proper-ty landslide stability analysis

Thermoelectric Modulation of Neat Ti_(3)C_(2)T_(x) MXenes by Finely Regulating the Stacking of Nanosheets

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Nano-Micro Letters 2025年第4期17卷 347-362页

作者： Junhui Tang Renyang Zhu Ya-Hsin Pai Yan Zhao chen xu Ziqi Liang Department of Materials Science Fudan UniversityShanghai 200433People’s Republic of China Spine Center Department of OrthopedicsShanghai Changzheng HospitalNaval Medical UniversityShanghai 200003People’s Republic of China

Emerging two-dimensional MXenes have been extensively studied in a wide range of fields thanks to their superior electrical and hydrophilic attributes as well as excellent chemical stability and mechanical *** them,the ultrahigh electrical conductivity(σ)and tunable band structures of benchmark Ti_(3)C_(2)T_(x) MXene demonstrate its good potential as thermoelectric(TE)***,both the large variation ofσreported in the literature and the intrinsically low Seebeck coefficient(S)hinder the practical ***,this study has for the first time systematically investigated the TE properties of neat Ti_(3)C_(2)T_(x) films,which are finely modulated by exploiting different dispersing solvents,controlling nanosheet sizes and constructing ***,deionized water is found to be superior for obtaining closely packed MXene sheets relative to other polar ***,a simultaneous increase in both S andσis realized via elevating centrifugal speed on MXene aqueous suspensions to obtain small-sized nanosheets,thus yielding an ultrahigh power factor up to~156μW m^(-1) K^(-2).Third,S is significantly enhanced yet accompanied by a reduction inσwhen constructing MXene-based nanocomposites,the latter of which is originated from the damage to the intimate stackings of MXene ***,a correlation between the TE properties of neat Ti_(3)C_(2)T_(x) films and the stacking of nanosheets is elucidated,which would stimulate further exploration of MXene TEs.

关键词： MXene Nanosheet stacking Electrical conductivity Seebeck coefficient Thermoelectrics

Integrated Sensing and Communication Enabled Sensing Base Station:System Design,Beamforming,Interference Cancellation and Performance Analysis

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China Communications 2025年第1期22卷 111-127页

作者： Jiang Wangjun Wei Zhiqing Feng Zhiyong chen xu Key Laboratory of Universal Wireless Communications Ministry of EducationBeijing University of Posts and TelecommunicationsBeijing 100876China

This paper studies the sensing base station(SBS)that has great potential to improve the safety of vehicles and pedestrians on *** can detect the targets on the road with communication signals using the integrated sensing and communication(ISAC)*** with vehicle-mounted radar,SBS has a better sensing field due to its higher deployment position,which can help solve the problem of sensing blind *** this paper,key technologies of SBS are studied,including the beamforming algorithm,beam scanning scheme,and interference cancellation *** transmit and receive ISAC signals simultaneously,a double-coupling antenna array is *** free detection beam and directional communication beam are proposed for joint communication and sensing to meet the requirements of beamwidth and pointing *** joint timespace-frequency domain division multiple access algorithm is proposed to cancel the interference of SBS,including multiuser interference and duplex interference between sensing and ***,the sensing and communication performance of SBS under the industrial scientific medical power limitation is analyzed and *** results show that the communication rate of SBS can reach over 100 Mbps and the range of sensing and communication can reach about 500 m.

关键词： beamforming integrated sensing and communication(ISAC) interference cancellation performance analysis sensing base station

Assessing the possibility of using large language models in ocular surface diseases

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International Journal of Ophthalmology(English edition) 2025年第1期18卷 1-8页

作者： Qian Ling Zi-Song xu Yan-Mei Zeng Qi Hong Xian-Zhe Qian Jin-Yu Hu Chong-Gang Pei Hong Wei Jie Zou cheng chen Xiao-Yu Wang xu chen Zhen-Kai Wu Yi Shao Department of Ophthalmology the First Affiliated HospitalJiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina Ophthalmology Centre of Maastricht University Maastricht 6200MSLimburgNetherlands Changde Hospital Xiangya School of MedicineCentral South University(the First People’s Hospital of Changde City)Changde 415000Hunan ProvinceChina Department of Ophthalmology Shanghai General HospitalShanghai Jiao Tong University School of MedicineNational Clinical Research Center for Eye DiseasesShanghai 200080China

AIM:To assess the possibility of using different large language models(LLMs)in ocular surface diseases by selecting five different LLMS to test their accuracy in answering specialized questions related to ocular surface diseases:ChatGPT-4,ChatGPT-3.5,Claude 2,PaLM2,and ***:A group of experienced ophthalmology professors were asked to develop a 100-question singlechoice question on ocular surface diseases designed to assess the performance of LLMs and human participants in answering ophthalmology specialty exam *** exam includes questions on the following topics:keratitis disease(20 questions),keratoconus,keratomalaciac,corneal dystrophy,corneal degeneration,erosive corneal ulcers,and corneal lesions associated with systemic diseases(20 questions),conjunctivitis disease(20 questions),trachoma,pterygoid and conjunctival tumor diseases(20 questions),and dry eye disease(20 questions).Then the total score of each LLMs and compared their mean score,mean correlation,variance,and confidence were ***:GPT-4 exhibited the highest performance in terms of *** the average scores of the LLMs group with the four human groups,chief physician,attending physician,regular trainee,and graduate student,it was found that except for ChatGPT-4,the total score of the rest of the LLMs is lower than that of the graduate student group,which had the lowest score in the human *** ChatGPT-4 and PaLM2 were more likely to give exact and correct answers,giving very little chance of an incorrect ***-4 showed higher credibility when answering questions,with a success rate of 59%,but gave the wrong answer to the question 28% of the ***:GPT-4 model exhibits excellent performance in both answer relevance and ***2 shows a positive correlation(up to 0.8)in terms of answer accuracy during the *** terms of answer confidence,PaLM2 is second only to GPT4 and surpasses Claude 2,SenseNova,and *** the fact t

关键词： ChatGPT-4.0 ChatGPT-3.5 large language models ocular surface diseases

Risk factors for biometry prediction error by Barrett Universal II intraocular lens formula in Chinese patients

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International Journal of Ophthalmology(English edition) 2025年第1期18卷 74-78页

作者： xu-Hao chen Ying Hong Xiang-Han Ke Si-Jia Song Yu-Jie Cen Chun Zhang Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Department of OphthalmologyPeking University Third HospitalBeijing 100191China State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangzhou 510060Guangdong ProvinceChina

AIM:To investigate the influence of postoperative intraocular lens(IOL)positions on the accuracy of cataract surgery and examine the predictive factors of postoperative biometry prediction errors using the Barrett Universal II(BUII)IOL formula for ***:The prospective study included patients who had undergone cataract surgery performed by a single surgeon from June 2020 to April *** collected data included the best-corrected visual acuity(BCVA),corneal curvature,preoperative and postoperative central anterior chamber depths(ACD),axial length(AXL),IOL power,and refractive *** formula was used to calculate the IOL *** mean absolute error(MAE)was calculated,and all the participants were divided into two groups *** t-tests were applied to compare the variables between *** regression analysis was used to analyze the influence of age,AXL,corneal curvature,and preoperative and postoperative ACD on ***:A total of 261 patients were *** 243(93.1%)and 18(6.9%)had postoperative MAE1 D,*** number of females was higher in patients with MAE>1 D(χ^(2)=3.833,P=0.039).The postoperative BCVA(logMAR)of patients with MAE>1 D was significantly worse(t=-2.448;P=0.025).After adjusting for gender in the logistic model,the risk of postoperative refractive errors was higher in patients with a shallow postoperative anterior chamber[odds ratio=0.346;95% confidence interval(CI):0.164,0.730,P=0.005].CONCLUSION:Risk factors for biometry prediction error after cataract surgery include the patient’s sex and postoperative *** with a shallow postoperative anterior chamber are prone to have refractive errors.

关键词： intraocular lens power calculation gender anterior chamber depth biometry prediction error

Alterations of interhemispheric functional connectivity in patients with hypertensive retinopathy using voxelmirrored homotopic connectivity:a resting state fMRI study

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International Journal of Ophthalmology(English edition) 2025年第2期18卷 297-307页

作者： xue-Lin Wang Yu chen Jin-Yu Hu Hong Wei Qian Ling Liang-Qi He cheng chen Yi-Xin Wang Yan-Mei Zeng Xiao-Yu Wang Qian-Min Ge xu chen Yi Shao Department of Ophthalmology the First Affiliated Hospital of Jiangxi Medical CollegeShangrao Center HospitalEye Hospital of Shangrao CityShangrao 334000Jiangxi ProvinceChina Department of Traditional Chinese Medicine the Second Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang 110000Liaoning ProvinceChina Department of Ophthalmology the First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina School of Optometry and Vision Science Cardiff UniversityCardiffCF244HQWalesUK Ophthalmology Centre of Maastricht University Maastricht 6200MSLimburg Provinciethe Netherlands Department of Ophthalmology Shanghai General HospitalShanghai Jiao Tong University School of MedicineNational Clinical Research Center for Eye DiseasesShanghai 200080China

AIM:To analyze whether alterations of voxel mirror homology connectivity(VMHC)values,as determined by resting-state functional magnetic resonance imaging(rsfMRI),occur in cerebral regions of patients with hypertensive retinopathy(HR)and to determine the relationship between VMHC values and clinical characteristics in patients with ***:Twenty-one patients with HR and 21 agematched healthy controls(HCs)were assessed by rsfMRI *** functional connectivity between the hemispheres of the cerebrum was assessed by measuring VMHC,with the ability of VMHC to distinguish between the HR and HC groups assessed using receiver operating characteristic(ROC)curve *** in the demographic and clinical characteristics of the HR and HC groups were analyzed by independent sample *** relationship between average VMHC in several brain areas of HR patients and clinical features was determined using Pearson correlation ***:Mean VMHC values of the bilateral cuneus gyrus(BA19),bilateral middle orbitofrontal gyrus(BA47),bilateral middle temporal gyrus(BA39)and bilateral superior medial frontal gyrus(BA9)were lower in the HR than in the HC ***:VMHC values can predict the development of early HR,prevent the transformation of hypertensive microangiopathy,and provide useful information explaining the changes in neural mechanism associated with HR.

关键词： hypertensive retinopathy voxel-mirrored homotopic connectivity neuroimaging functional MRI resting state

Flavones in pomelo peel resist fibril formation of human islet amyloid polypeptide

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Chinese Herbal Medicines 2025年第1期17卷 166-177页

作者： Cuiyun Gao Zhiruo Wan Yan Liu Yuting Meng xu chen Xiaohan Tang Lingyu Hang Hailong Yuan Department of Pharmacy Air Force Medical Center Air Force Medical University

Objective:Exploring the formation and aggregation of human islet amyloid polypeptide(hIAPP)(amylin)fibers is significant for promoting the prevention and treatment of type II diabetes mellitus(T2DM).Flavones in pomelo peel have visible biological activity in the anti-diabetes *** present study aimed to investigate the effects of five flavones [naringin(NRG),narirutin(NRR),nobiletin(NOB),sinensetin(SIN),and neohesperidin(NHP)] in pomelo peel on peptide aggregation and explore its possible *** cell viability of flavones against peptide aggregation was also ***:The thioflavin T(ThT) assay and transmission electron microscopy(TEM) were used for evaluating the inhibition and disaggregation of flavones on peptide *** interaction mechanism was analyzed by endogenous fluorescence,molecular dynamics(MD) simulations,ultraviolet spectroscopy(UV) and isothermal titration calorimetry(ITC) *** 3-[4,5-dimethylthiazol-2-y l]-2,5-diphenyl tetrazolium bromide(MTT) and immune assays were performed to characterize the cell viability of flavones against peptide ***:The five flavones showed a decrease in fluorescence intensity,fiber number and size under incubation with different molar ratios of *** compounds can bind to the aromatic tyrosine(Tyr)residueTyr 37,resulting in the intrinsic fluorescence quenching of the *** flavones can form hydrogen bonds with hIAPP,which is likely to be based on their phenolic hydroxyl *** showed strong binding affinity with *** reaction system of NRG and NRR observed an exothermic reaction,and the others were endothermic *** absorption peaks of the compounds with hIAPP changed and showed hypochromic effects,indicating that there may be π-π stacking *** noticeably increased the cell viability in the presence of amyloid peptides and reduced the absorption intensity induced by peptide ***:A total of five flav

关键词： flavones human islet amyloid polypeptide inhibition interaction pomelo peel peptide aggregation

Multivariate synergy for heightening ionic HOF robustness and proton conductivity

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Science China Chemistry 2025年

作者： Xiang-Tian Bai Li-Hui Cao xu-Yong chen Jia-Yu Wang Zi-Ye Zhou Shaanxi Key Laboratory of Chemical Additives for Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology

Multicomponent crystalline materials construct more complex and diversified structures with different combinations and modes,which expands the material structure space and application *** this work,we have successfully synthesized two twocomponent ionic hydrogen-bonded organic frameworks （iHOF-32 and iHOF-33） and a three-component iHOF （iHOF-34）.Guanidine hydrochloride which is rich in N and H and has a short chain length strengthens the hydrogen bonding network of iHOF,thereby aiding in the efficient migration of *** rigid architecture of 1,1'-diamino-4,4'-bipyridine diiodide furnishes additional scaffolding for the iHOFs and enhances its robustness under harsh ***-34 accomplishes the combination of the ultra-high proton conductivity of iHOF-32 and the robustness of iHOF-33 by the synergistic interaction among the three components of *** addition,iHOF-34 was fabricated as a composite membrane with a peak proton conductivity of 1.55×10-1S cm-1,which is 3.8 times higher than that of recast Nafion,and has extensive potential in fuel *** self-assembly strategy of multicomponent HOFs opens up new avenues for constructing diverse structures while promising new opportunities for applications in the fields of proton conduction and energy storage.

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高铁成网条件下城际铁路网规划研究

铁道标准设计 2025年第2期69卷 1-8+16页

作者：陈旭中铁第四勘察设计院集团有限公司线路站场设计研究院

随着2004版、2008版、2016版《中长期铁路网规划》的深入实施，我国高速铁路网规模已经达到4.2万km,“八纵八横”高铁主通道已建成约80%。在此背景下，如何高质量规划城市群城际铁路网是亟待解决的关键问题。本文落实交通强国建设要求... 详细信息

随着2004版、2008版、2016版《中长期铁路网规划》的深入实施，我国高速铁路网规模已经达到4.2万km,“八纵八横”高铁主通道已建成约80%。在此背景下，如何高质量规划城市群城际铁路网是亟待解决的关键问题。本文落实交通强国建设要求，以高质量发展为导向，以融合发展为重点，首次提出“城际客运网”的概念；按照“空间—需求—供给”的规划思路，结合城市群空间格局、运输需求分布特征确定“城际客运网”;优先利用高铁承担城际客流，在高铁能力不足或线路不能覆盖的地方规划新建城际铁路，形成“城际铁路网”;以中原城市群为例进行研究，分析中原城市群社会经济、高速铁路网规划和上一轮城际铁路网规划；结合中原城市群及河南省国土空间规划、融合多源数据的综合交通需求预测，构建了“十字主轴、象限放射、相连成环、区域多联”的城际客运网；针对客运网中的通道逐一开展客运需求与高铁网供给的互适性分析，构建了“十字、一环、多联”的城际铁路网；规划实现了城际铁路与高速铁路融合发展，避免了通道内线路的重复建设，推动了轨道交通的高质量发展；规划构建了中原城市群“1-2-3-4-5 h”交通圈，基本覆盖20万以上人口城市，轨道交通分担率由11.7%提升至18.5%。

关键词：高速铁路交通强国城市群城际客运网城际铁路网路网规划

数字文化产业创新生态系统价值共创机制及路径研究

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科研管理 2025年第1期46卷 63-72页

作者：江瑶程婷华陈旭上海工程技术大学管理学院上海201620 上海应用技术大学经济与管理学院上海201418

在文化强国战略背景下,我国积极鼓励构建数字文化产业创新生态,实现各方主体价值共创。然而,关于数字文化产业创新生态系统价值共创问题的研究尚且缺乏统一分析框架,且多以定性方法为主。基于此,本文按照“驱动因素—行为模式—共创结... 详细信息

在文化强国战略背景下,我国积极鼓励构建数字文化产业创新生态,实现各方主体价值共创。然而,关于数字文化产业创新生态系统价值共创问题的研究尚且缺乏统一分析框架,且多以定性方法为主。基于此,本文按照“驱动因素—行为模式—共创结果”的研究逻辑,首先利用探索性单案例分析构建价值共创机制模型,再采用模糊集定性比较分析法探讨实现价值共创的组态路径。结果表明:数字文化产业创新生态系统价值共创受到市场经济、价值需求、文化共识、产业政策、IP资源、数字技术六大因素驱动,存在内容创作、渠道对接、IP生态、中介合作、技术赋能、政企协作六种行为模式,从而实现价值获取、传递、创造、增值并循环迭代;驱动价值共创的三条因素组态路径是文化强国战略下的数字市场驱动型、新型需求驱动型和“内容+科技”双轮驱动型;实现价值共创的三条行为模式组态路径是渠道连接的内容生态模式、中介支撑的内容生态模式和技术赋能的内容生态模式。本文不仅拓展了针对该问题的分析框架和方法,也为我国数字文化产业高质量发展提供了政策启示。

关键词：价值共创数字文化产业驱动因素行为模式组态路径