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Research Progress in the Fabrication of Covalent Organic Framework Membranes for Chemical Separations

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Chinese Journal of Polymer Science 2024年第2期42卷 141-158,I0005页

作者： Cui-Ting Ding Jin-qiu yuan Meng-Ying Xie Qing-yuan Liu Zeng-Guang Yao Shi-Yu Zhang Run-Nan Zhang Hong Wu Zhong-Yi Jiang Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China Zhejiang Institute of Tianjin University NingboZhejiang315201China Haihe Laboratory of Sustainable Chemical Transformations Tianjin300192China Tianjin Key Laboratory of Membrane Science and Desalination Technology Tianjin UniversityTianjin300072China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou350207China

Membrane technology has become one of the most promising separation technologies for its energy saving, high separation efficiency, environmental friendliness, and economic feasibility. Covalent organic frameworks(COFs) with intrinsically high porosity, controllable pore size, uniform pore size distribution and long-range ordered channel structure, have emerged as next-generation materials to fabricate advanced separation membranes. This feature article summarizes some latest studies in the development of pure COF membranes in our lab, including their fabrication and applications in chemical separations. Finally, current challenges facing high-performance COF separation membranes are discussed.

关键词： Covalent organic frameworks Covalent organic framework membranes Water treatment Organic solvent nanofiltration Gas separation

Arc additive manufacturing of gradient hot forging die with shaped waterways

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China Welding 2024年第1期33卷 27-39页

作者：余圣甫林海涛邱源 State Key Laboratory of Materials Processing and Die&Mould Technology Huazhong University of Science and TechnologyWuhan 430074China

Under the working environment of high temperature and strong load impact,hot forging die is prone to failure which reduces the service life of *** arc additive manufacturing in the die cavity,a gradient material hot forging die with high precision,superior per-formance,and conformal cooling channels is *** improves the toughness of the die cavity and reduces the working temperature,thereby forming an isothermal field,which is an effective method to enhance the lifespan of the hot forging *** kinds of gradient flux-cored wires are designed for the surface of 5CrNiMo steel,and the microstructure and mechanical properties between gradient interfaces were *** on the spatial curved structure of shaped waterways in the hot forging die cavity,a study was conducted on the strategy of partitioned forming for the manufacturing of the die with shaped *** order to avoid interference with the arc gun,the hot for-ging die is divided into four regions,namely the transition region,upper,middle,and lower region,based on a combination of cavity depth and internal U-shaped and quadrilateral *** results show that the developed flux-cored wires have good moldability with straight sides of deposited metal under different process parameters and flat surface without cracks,pores and other *** the same working conditions,the life of hot forging die formed by the gradient materials is more than multiple times that of the single material hot forging die,and the temperature gradient field of the shaped waterway die is 7℃/cm smaller than that of traditional straight waterway.

关键词： gradient materials shaped waterways arc additive manufacturing mechanical property

Clinical characteristics and risk factors of post-operative intestinal flora disorder following laparoscopic colonic surgery:A propensityscore-matching analysis

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World Journal of Gastrointestinal Surgery 2024年第5期16卷 1259-1270页

作者： Gan-Bin Li Chen-Tong Wang Xiao Zhang Xiao-yuan qiu Wei-Jie Chen Jun-Yang Lu Lai Xu Bin Wu YiXiao Guo-Le Lin Department of General Surgery Peking Union Medical College HospitalPeking Union Medical CollegeBeijing 100730China

BACKGROUND Intestinal flora disorder(IFD)poses a significant challenge after laparoscopic colonic surgery,and no standard criteria exists for its diagnosis and *** To analyze the clinical features and risk factors of *** Patients with colon cancer receiving laparoscopic surgery were included using propensity-score-matching(PSM)*** on the occurrence of IFD,patients were categorized into IFD and non-IFD *** clinical characteristics and treatment approaches for patients with IFD were *** regression analysis was performed to identify the risk factors of *** The IFD incidence after laparoscopic surgery was 9.0%(97 of 1073 patients).After PSM,97 and 194 patients were identified in the IFD and non-IFD groups,*** most common symptoms of IFD were diarrhea and abdominal,typically occurring on post-operative days 3 and *** patients were managed conservatively,including modulation of the intestinal flora(90.7%),oral/intravenous application of vancomycin(74.2%),and insertion of a gastric/ileus tube for decompression(23.7%).Multivariate regression analysis identified that preoperative intestinal obstruction[odds ratio(OR)=2.79,95%CI:1.04–7.47,P=0.041]and post-operative antibiotics(OR=8.57,95%CI:3.31–23.49,P<0.001)were independent risk factors for IFD,whereas pre-operative parenteral nutrition(OR=0.12,95%CI:0.06–0.26,P<0.001)emerged as a protective *** A stepwise approach of probiotics,vancomycin,and decompression could be an alternative treatment for *** attention is warranted post-operatively for patients with pre-operative obstruction or early use of antibiotics.

关键词： Colon cancer,Laparoscopy Intestinal flora disorder Clinical characteristics Risk factors

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近20年高校阅读推广研究范式分析与思考

大学图书情报学刊 2024年第3期42卷 30-37页

作者：邱源淮南师范学院图书馆 232038

采用计量学、图形学、信息可视化技术,绘制出高校阅读推广近20年的知识映射地图和前后10年事件因子、连接强度,分析其前沿地带主导性的研究范式,以期引导高校阅读推广研究朝向“统合广义的新兴科学技术和传统学科研究范式”的方向发展。

关键词：高校阅读推广阅读推广研究知识图谱研究范式

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高校阅读推广20年分层式图谱解读及GPT赋能进路

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新世纪图书馆 2024年第2期 42-51页

作者：邱源淮南师范学院图书馆安徽淮南232038

论文对高校20年阅读推广研究进行阶段划分,采用计量学、图形学、信息可视化技术,分别绘制高校阅读推广三个不同历史阶段的CT式分层知识图谱,梳理出每个阶段该领域核心内容、核心结构及其发展趋势,提供GPT与高校阅读推广相粘合的新形态... 详细信息

论文对高校20年阅读推广研究进行阶段划分,采用计量学、图形学、信息可视化技术,分别绘制高校阅读推广三个不同历史阶段的CT式分层知识图谱,梳理出每个阶段该领域核心内容、核心结构及其发展趋势,提供GPT与高校阅读推广相粘合的新形态、新风向和新技术,促进高校阅读推广理论研究朝向“统合广义的现代信息技术和潜能发展理论”的方向发展,实践研究朝向数字化、智能化方向努力。

关键词： CT式知识图谱高校阅读推广 GPT

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数智时代的城建档案转型研究

兰台世界 2024年第4期 62-66页

作者：邱媛深圳市城市建设档案馆

党的二十大报告指出,要加快建设网络强国、数字中国。如何贯彻落实党的二十大精神,推动城建档案数字化、智能化管理,把握大势、主动作为、抢抓机遇,是需要深入探讨的问题。在此背景下,梳理了近期档案数智化建设相关政策,分析了城建档案... 详细信息

党的二十大报告指出,要加快建设网络强国、数字中国。如何贯彻落实党的二十大精神,推动城建档案数字化、智能化管理,把握大势、主动作为、抢抓机遇,是需要深入探讨的问题。在此背景下,梳理了近期档案数智化建设相关政策,分析了城建档案数智化的发展现状和数智化转型的必要性,列举了各城市数智化转型的先进经验,以深圳为例对城建档案数智化转型进行了思考。

关键词：城建档案数智化转型

基于Nadam-TimeGAN和XGBoost的时序信号故障诊断方法

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通信学报 2024年第4期45卷 185-200页

作者：黑新宏高苗张宽费蓉邱原姬文江西安理工大学计算机科学与工程学院陕西西安710048 陕西省网络计算与安全技术重点实验室陕西西安710048

为了提高故障诊断模型在数据不平衡场景下的诊断性能和模型泛化能力,提出了一种基于Nadam-TimeGAN和XGBoost的时序信号故障诊断方法。首先对比基于LSTM和GRU的TimeGAN模型,选取性能更优的GRU网络作为TimeGAN模型的组成单元,然后采用Nada... 详细信息

为了提高故障诊断模型在数据不平衡场景下的诊断性能和模型泛化能力,提出了一种基于Nadam-TimeGAN和XGBoost的时序信号故障诊断方法。首先对比基于LSTM和GRU的TimeGAN模型,选取性能更优的GRU网络作为TimeGAN模型的组成单元,然后采用Nadam优化算法对TimeGAN模型的各组件进行优化,即构建Nadam-TimeGAN模型用以数据扩充,最后构建一个平衡的数据集输入XGBoost集成学习模型进行分类训练。实验选取转辙机动作电流数据集进行验证性实验,选取MFPT轴承数据集和CWRU轴承数据集进行泛化性实验,并与8种方法进行对比,结果表明,所提方法在准确率、召回率以及F1-score这3种评价指标上均高于其他方法,从而验证了所提方法在不平衡数据故障诊断方面的有效性和泛化性。

关键词：时间序列生成对抗网络 Nesterov加速自适应矩估计极致梯度提升故障诊断数据增强

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The activity and immune dynamics of PD-1 inhibition on high-risk pulmonary ground glass opacity lesions:insights from a single-arm,phase II trial

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Signal Transduction and Targeted Therapy 2024年第5期9卷 2202-2214页

作者： Bo Cheng Caichen Li Jianfu Li Longlong Gong Peng Liang Ying Chen Shuting Zhan Shan Xiong Ran Zhong Hengrui Liang Yi Feng Runchen Wang Haixuan Wang Hongbo Zheng Jun Liu Chengzhi Zhou Wenlong Shao yuan qiu Jiancong Sun Zhanhong Xie Zhu Liang Chenglin Yang Xiuyu Cai Chunxia Su Wei Wang Jianxing He Wenhua Liang Department of Thoracic Surgery and Oncology the First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Institute of Respiratory HealthState Key Laboratory of Respiratory DiseaseNational Clinical Research Center for Respiratory DiseaseGuangzhouChina Medical Department Genecast Biotechnology Co.LtdWuxiChina Department of Radiation Oncology the First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina Department of Respiratory Medicine the First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Institute of Respiratory HealthState Key Laboratory of Respiratory DiseaseNational Clinical Research Center for Respiratory DiseaseGuangzhouChina Department of Cardiothoracic Surgery Affiliated Hospital of Guangdong Medical UniversityZhanjiangChina Department of Thoracic Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital&Shenzhen HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeShenzhenChina Department of VIP Inpatient Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaSun Yat-sen UniversityGuangzhouChina Department of Medical Oncology Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghaiChina

Immune checkpoint inhibitors targeting the programmed cell death-1(PD-1)protein significantly improve survival in patients with advanced non-small-cell lung cancer(NSCLC),but its impact on early-stage ground-glass opacity(GGO)lesions remains *** is a single-arm,phase II trial(NCT04026841)using Simon’s optimal two-stage design,of which 4 doses of sintilimab(200 mg per 3 weeks)were administrated in 36 enrolled multiple primary lung cancer(MPLC)patients with persistent high-risk(Lung-RADS category 4 or had progressed within 6 months)*** primary endpoint was objective response rate(ORR).T/B/NK-cell subpopulations,TCR-seq,cytokines,exosomal RNA,and multiplexed immunohistochemistry(mIHC)were monitored and compared between responders and ***,two intent-to-treat(ITT)lesions(pure-GGO or GGO-predominant)showed responses(ORR:5.6%,2/36),and no patients had progressive disease(PD).No grade 3-5 TRAEs *** total response rate considering two ITT lesions and three non-intent-to-treat(NITT)lesions(pure-solid or solid-predominant)was 13.9%(5/36).The proportion of CD8^(+)T cells,the ratio of CD8^(+)/CD4^(+),and the TCR clonality value were significantly higher in the peripheral blood of responders before treatment and decreased over ***,the mIHC analysis showed more CD8^(+)T cells infiltrated in ***,responders’cytokine concentrations of EGF and CTLA-4 increased during *** exosomal expression of fatty acid metabolism and oxidative phosphorylation gene signatures were down-regulated among ***,PD-1 inhibitor showed certain activity on high-risk pulmonary GGO lesions without safety *** effects were associated with specific T-cell re-distribution,EGF/CTLA-4 cytokine compensation,and regulation of metabolism pathways.

关键词： lesions metabolism doses

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近断层区地震动的有限断层数值模型与分析

长安大学学报（自然科学版） 2024年第4期44卷 77-86页

作者：马海英邱媛夏烨赖明辉同济大学土木工程学院上海200092 四川省公路规划勘察设计研究院有限公司四川成都610041

近场地震动含有脉冲成分,对桥梁的作用响应区别于远场地震动,其破坏更大,会导致桥梁出现坍塌等严重事故。为评估断层场地的近场地震效应,并为跨断层斜拉桥Benchmark模型平台提供近场地震动数据,基于琼山地震旧址的地质结构特征,建立有... 详细信息

近场地震动含有脉冲成分,对桥梁的作用响应区别于远场地震动,其破坏更大,会导致桥梁出现坍塌等严重事故。为评估断层场地的近场地震效应,并为跨断层斜拉桥Benchmark模型平台提供近场地震动数据,基于琼山地震旧址的地质结构特征,建立有限有限断层数值模型,进行正演模拟,包括构建断层影响区域、确定断层破裂面的平均滑动、以及点震源地震动模拟。并利用数值模拟得到了观测点,比较数值分析结果与相近等级的记录地震动脉冲特性参数。分析了近断层区域的地震动,验证了有限断层震源数值模型的有效性。结果表明:断层破裂面视倾角越小,地面最大峰值加速度P_(GA)、地面的峰值速度与峰值加速度之比P_(GV2A)和Arias强度I_(a)越大,地震动脉冲性越强。垂直断层破裂面方向的地面峰值加速度P_(GAv)、P_(GV2A)在上盘或在传播方向的数值大于下盘,表现出了近断层地震的上盘效应和方向性效应;而平行断层破裂面方向的地面峰值加速度P_(GAp)、I_(a)和两水平方向的Arias强度之比I_(y2x)的分布规律恰好相反,其原因是横向地震动在下盘观测点的断层距更近,下盘上的效应大于上盘。模拟的M_(w)7.5的正断层地震动除P_(GA)与1999年ChiChi地震CHY101(M_(w)7.62的斜滑断层)较为接近外,其余地震动脉冲特性参数和同类型的1980年Irpinia Sturno(M_(w)6.9的正断层)地震有较高的一致性。

关键词：桥梁工程有限断层数值模型正演模拟地震动脉冲成分结构参数