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Aggregate Point Cloud Geometric Features for Processing

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Computer Modeling in Engineering & Sciences 2023年第7期136卷 555-571页

作者： Yinghao Li Renbo Xia Jibin Zhao yueling chen Liming Tao Hangbo Zou Tao Zhang Shenyang Institute of Automation Chinese Academy of SciencesShenyang110016China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang110169China University of Chinese Academy of Sciences Beijing100049China

As 3D acquisition technology develops and 3D sensors become increasingly affordable,large quantities of 3D point cloud data are *** to effectively learn and extract the geometric features from these point clouds has become an urgent problem to be *** point cloud geometric information is hidden in disordered,unstructured points,making point cloud analysis a very challenging *** address this problem,we propose a novel network framework,called Tree Graph Network(TGNet),which can sample,group,and aggregate local geometric ***,we construct a Tree Graph by explicit rules,which consists of curves extending in all directions in point cloud feature space,and then aggregate the features of the graph through a cross-attention *** this way,we incorporate more point cloud geometric structure information into the representation of local geometric features,which makes our network perform *** model performs well on several basic point clouds processing tasks such as classification,segmentation,and normal estimation,demonstrating the effectiveness and superiority of our ***,we provide ablation experiments and visualizations to better understand our network.

关键词： Deep learning point-based models point cloud analysis 3D shape analysis point cloud processing

造口治疗师主导富血小板血浆联合湿性敷料治疗术后不愈合慢性伤口的效果观察

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中国实用护理杂志 2024年第23期40卷 1761-1767页

作者：夏振兰杨晓君周永林杨逸禧陈月玲陈丽萍刘泽炫广州医科大学附属第三医院创伤外科广州510150 广州医科大学附属第三医院3D打印再生医学转化研究中心广州510150 广州医科大学附属第三医院外科门诊广州510150 广州医科大学附属第三医院护理部广州510150

目的:探讨由造口治疗师(ET)主导的多学科协作模式下,综合运用富血小板血浆(PRP)联合湿性敷料治疗术后不愈合慢性伤口的应用效果,为提高慢性伤口患者的临床实践与管理水平提供参考和借鉴。方法:采用随机对照试验,便利抽样法选取2018年10... 详细信息

目的:探讨由造口治疗师(ET)主导的多学科协作模式下,综合运用富血小板血浆(PRP)联合湿性敷料治疗术后不愈合慢性伤口的应用效果,为提高慢性伤口患者的临床实践与管理水平提供参考和借鉴。方法:采用随机对照试验,便利抽样法选取2018年10月至2023年2月广州医科大学附属第三医院慢性伤口护理门诊就诊的术后不愈合慢性伤口患者88例,采用抛硬币法随机分组,对照组(41例)采用标准的湿性敷料治疗,试验组(47例)采用以PRP联合湿性敷料为核心的综合治疗方案,由ET采用三通头同步推注PRP和助凝混合液并覆盖超薄型泡沫敷料的创新护理技术。观察2组患者伤口压疮愈合计分量表(PUSH)评分、伤口面积愈合指数(WSHI)、换药过程中的疼痛程度、伤口愈合时间和治疗满意率。结果:88例患者中,对照组女25例,男16例,年龄为58.00(37.00,79.00)岁,试验组女31例,男16例,年龄为57.00(35.00,72.00)岁。试验组患者在伤口治疗后第7、14、21天的PUSH评分中位数分别是11.00、9.00、7.00分,优于对照组的13.00、11.00、9.00分,WSHI中位数分别是0.35、0.58、0.84,优于对照组的0.09、0.30、0.50,2组比较差异均有统计学意义(Z值为4.08~8.20,均P<0.01);试验组换药治疗第7天、第14天、第21天疼痛评分分别为3.00(2.00,3.00)、2.00(1.00,2.00)、0.00(0.00,1.00)分,低于对照组的3.00(3.00,3.00)、2.00(2.00,3.00)、2.00(1.00,2.00)分,差异有统计学意义(Z=2.16、3.38、6.14,均P<0.05);试验组伤口愈合时间为(37.04±25.33)d,短于对照组的(52.88±36.58)d,差异有统计学意义(t=5.53,P<0.05);试验组满意率为97.90%(46/47),高于对照组的87.80%(36/41),差异有统计学意义(χ^(2)=3.13,P<0.05)。结论:由ET主导的多学科协作模式下,以PRP联合湿性敷料为核心的综合治疗对术后不愈合慢性伤口具有明显的治疗效果,包括缩短伤口愈合时间、加快愈合速度、降低伤口疼痛程度以及提高患者满意度,具有较高的临床应用价值和社会效益。

关键词：富血小板血浆伤口愈合外科伤口治疗结果

Photo-controllable antifouling hydrogels embedded with AgNPs coated spiropyran functionalized mesoporous silica for long-term antibacterial activity

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Nano Research 2024年第9期17卷 8337-8349页

作者： Wei Su Fei Wang Bing chen Ruoke Li Jindian Liu Junjie Xu Jianhua Fan yueling Liu State Key Laboratory of Bioreactor Engineering East China University of Science and TechnologyShanghai 200237China Department of Applied Biology School of BiotechnologyEast China University of Science and TechnologyShanghai 200237China

Silver nanoparticles(AgNPs)are widely used in antimicrobial ***,its easy aggregation and rapid loss hinder the effective *** address this issue,a novel stimuli-responsive antibacterial nanocomposite(Ag@SP-MSN)was developed based on spiropyran covalently conjugated mesoporous silica nanoparticles(284.6 nm)and AgNPs(27.1 nm)via strong electrostatic *** transmission electron microscopy(TEM)and atomic force microscopy(AFM)images proved the successful modification of AgNPs onto *** light-induced maximum loading amount towards AgNPs was calculated to be 95.0 wt.%after ultraviolet irradiation,while the amount of AgNPs released from Ag@SP-MSN was 94.4 wt.%under visible light in the aid of ammonia(0.1%,v/v).Upon cycled light irradiation,Ag@SP-MSN could recover 84.5 wt.%of AgNPs even after four *** proposed Ag@SP-MSN exhibited better antibacterial activity against both *** and *** than Ag@MSN under visible light illumination,indicating the efficient photo-responsive isomerization of ***,the Ag@SP-MSN embedded gel demonstrated outstanding antifouling ability even after 21 days when compared to AgNPs *** long-term photo-controllable antifouling property proved the excellent reversible absorption and release of Ag@SP-MSN towards *** work provides new insights into the safe utilization of nanomaterials,offering promising advancements to meet clinical antibacterial requirements.

关键词： light-responsive silver nanoparticles spiropyran mesoporous silica nanoparticles antibacterial activity

SOX11 as a potential prognostic biomarker in hepatocellular carcinoma linked to immune infiltration and ferroptosis

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Chinese Journal of Cancer Research 2024年第4期36卷 378-398页

作者： Hongyu chen Qiangguo Ao yueling Wang Yue Qian Qingli cheng Wei Zhang Department of Nephrology the Second Medical Center of PLA General Hospital National Clinical Research Center for Geriatric Diseases Clinical Laboratory the First Affiliated Hospital of Henan University Cell Biology Department Wuxi School of Medicine Jiangnan University Department of Pathogen Biology Guizhou Nursing Vocational College

Objective: SOX11 is expressed in numerous malignancies, including hepatocellular carcinomas(HCC), but its oncogenic function has not been elucidated. Here, we performed a comprehensive bioinformatics analysis of the Liver Hepatocellular Carcinoma(LIHC) dataset to investigate the function of SOX11 in ***: SOX11 expression data from The Cancer Genome Atlas(TCGA) and Gene Expression Omnibus(GEO) were validated by immunohistochemistry(IHC). Co-expression, differential expression, and functional analyses utilized TCGA-LIHC, Timer 2.0, Metascape, GTEx, and Linked Omics databases. Associations with immune infiltration, ferroptosis, and immune checkpoint genes were assessed. Genetic changes were explored via CBio Portal. Logistic regression, receiver operating characteristic curve(ROC), Kaplan-Meier analysis, and nomogram modeling evaluated associations with HCC clinicopathological features. SOX11's impact on proliferation and migration was studied in HepG2 and Hu H7 cell ***: SOX11 was significantly elevated in HCC tumors compared to controls. SOX11-associated genes exhibited differential expression in pathways involving extracellular membrane ion channels. Significant associations were found between SOX11 levels, immune infiltration, ferroptosis, and immune checkpoint genes in HCC ***11 levels correlated with HCC stage, histologic grade, and tumor status, and independently predicted overall and disease-specific survival. SOX11 expression effectively distinguished between tumor and normal liver *** correlations highlighted a significant relationship between SOX11 and ferroptosis-associated *** SOX11 levels in HepG2 and Hu H7 cells resulted in reduced proliferation and ***: SOX11 was found to represent a promising biomarker within HCC diagnosis and prognosis together with being a possible drug-target.

关键词： HCC SOX11 biomarker ferroptosis genetic alterations prognosis tumor-immune infiltration

Indirect iterative learning control design based on 2DOF IMC for batch processes with input delay

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Indirect iterative learning control design based on 2DOF IMC...

第36届中国控制会议

作者： Jiyao Cui Zhihong Wang yueling chen Tao Liu Institute of Advanced Control Technology Dalian University of Technology

ISBN: (纸本)9781538629185

In this paper,an indirect type iterative learning control（ILC） scheme is proposed for industrial batch processes with input delay,based on using a two-degree-of-freedom control（2DOF） internal model control（IMC） *** important merit is that the 2DOF IMC design for robust closed-loop control against process uncertainties and load disturbance is independent of the ILC design specifically for set-point *** realize prefect tracking,an ILC controller in the form of proportionalderivative（PD） is proposed for the convenience of *** is a single adjustable parameter in the proposed ILC controller,which may be monotonically tuned to meet a good trade-off between the tracking performance and its robustness against process *** conditions to guarantee the convergence of ILC are *** illustrative example is used to demonstrate the effectiveness and merit of the proposed ILC method.

关键词： Batch processes input delay two-degree-of-freedom control(2DOF) internal model control(IMC) iterative learning control(ILC) convergence

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监控影像视觉语言研究

北京电影学院学报 2021年第7期 21-27页

作者：樊华陈玥灵北京电影学院摄影系

本研究通过梳理关于监控和影像两者关系的研究,发现多数此类研究的切入点为监控社会的发展对影像叙事的影响,却极少有人研究社会学意义上的监控技术发展对影像视觉语言的特殊影响。通过文献研究和片例分析,本文将监控技术的发展分为四... 详细信息

本研究通过梳理关于监控和影像两者关系的研究,发现多数此类研究的切入点为监控社会的发展对影像叙事的影响,却极少有人研究社会学意义上的监控技术发展对影像视觉语言的特殊影响。通过文献研究和片例分析,本文将监控技术的发展分为四个时期:隐喻式监控时期、全景敞视时期、监控泛化时期和监控图像统治时期,按照时间逻辑把监控实践在各个阶段对影像视觉语言的特殊影响进行系统梳理,并从影像的机械美学、摄影机从隐形到"自反"的转变和观影媒介角度归纳了当下监控影像的视觉特征。

关键词：监控影像监控实践视觉语言机械美学媒介自反

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ZnCl_2改性柠檬渣的吸附性能研究

化工新型材料 2016年第9期44卷 196-198页

作者：沈王庆雷阳陈月铃内江师范学院化学化工学院内江641100 "果类废弃物资源化"四川省高等学校重点实验室内江641100

研究了用10%的ZnCl_2化学改性柠檬渣的吸附性能,考察了改性前后柠檬渣对Cu^(2+)、Pb^(2+)和Cr^(6+)的吸附率变化情况。测定了柠檬渣的灰分、碘吸附值、比表面积和孔结构;利用红外光谱、紫外光谱、X射线衍射仪、扫描电镜和能谱对柠檬渣... 详细信息

研究了用10%的ZnCl_2化学改性柠檬渣的吸附性能,考察了改性前后柠檬渣对Cu^(2+)、Pb^(2+)和Cr^(6+)的吸附率变化情况。测定了柠檬渣的灰分、碘吸附值、比表面积和孔结构;利用红外光谱、紫外光谱、X射线衍射仪、扫描电镜和能谱对柠檬渣的结构进行了表征。研究结果表明:改性后的柠檬渣对Cu^(2+)、Pb^(2+)和Cr^(6+)的吸附率分别提高约10、2和1.2倍;改性后柠檬渣的孔容、孔径、灰分率和碘吸附值变化不大,比表面积增大了近3倍;改性并未改变柠檬渣的基本框架,改性后的柠檬渣在近紫外区有最大吸收波长;Cl^-能分别被Cu^(2+)、Pb^(2+)、Cr^(6+)完全取代,但形成的EDS峰不高。

关键词：柠檬渣,吸附,改性 ZnCl2

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幼儿园"亲自然"课程的构建

科教文汇 2023年第4期 185-188页

作者：陈悦灵广西师范大学教育学部广西桂林541006

亲近自然是幼儿的天性,幼儿的成长需要更加完善的"亲自然"课程的支持.幼儿园的"亲自然"课程,是利用儿童身边的自然资源开展的,旨在滋养儿童心灵、培养儿童"亲近自然、尊重自然、热爱自然生命"的情感态度、促进儿童感知觉发展、激发儿童... 详细信息

亲近自然是幼儿的天性,幼儿的成长需要更加完善的"亲自然"课程的支持.幼儿园的"亲自然"课程,是利用儿童身边的自然资源开展的,旨在滋养儿童心灵、培养儿童"亲近自然、尊重自然、热爱自然生命"的情感态度、促进儿童感知觉发展、激发儿童潜能的各种活动的总和."亲自然"课程在目标上兼具全面性和完整性,回归幼儿生活,提升教师"亲自然"素养,实施真实、整体、多元的课程评价,注重自然课程环境开发,最终实现"亲自然"课程与幼儿的和谐共生.

关键词：幼儿园 "亲自然"教育课程

NaOH/KOH改性柠檬渣吸附Cu^(2+)、Pb^(2+)和Cr^(6+)的研究

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化工新型材料 2017年第11期45卷 189-193页

作者：沈王庆雷阳陈月铃内江师范学院化学化工学院内江641100 "果类废弃物资源化"四川省高等学校重点实验室内江641100

为了研究柠檬渣化学改性后的吸附性能,分别利用10%的KOH和NaOH对其进行改性。测量了改性前后柠檬渣对Cu^(2+)、Pb^(2+)和Cr^(6+)的吸附率,并测定了柠檬渣的灰分、碘吸附值、比表面积和孔结构(BET);利用差热分析(TG-DTA)、红外光谱(IR)、... 详细信息

为了研究柠檬渣化学改性后的吸附性能,分别利用10%的KOH和NaOH对其进行改性。测量了改性前后柠檬渣对Cu^(2+)、Pb^(2+)和Cr^(6+)的吸附率,并测定了柠檬渣的灰分、碘吸附值、比表面积和孔结构(BET);利用差热分析(TG-DTA)、红外光谱(IR)、X射线衍射仪(XRD)、扫描电镜(SEM)和能谱(EDS)对柠檬渣进行表征。改性后的柠檬渣对Pb^(2+)的吸附率增加近2倍,对Cr^(6+)的吸附率减小了近10倍左右,对Cu^(2+)吸附的影响不大;活化后的柠檬渣孔容分别增大3倍和4倍;柠檬渣在活化前后的孔径都为中孔;活化后的柠檬渣的比表面积、灰分和碘吸附值增幅较大。活化后的柠檬渣表面变得有些疏松,比表面积增加都超过了2倍,灰分率分别增加了近2倍和1.5倍左右,而碘吸附值分别增加了近3.5倍和2.5倍左右。柠檬渣为非晶型结构,改性前后并没改变柠檬渣的基本框架。活化和吸附Pb^(2+)样品的吸热峰和放热峰所对应的温度均不相同。

关键词：柠檬渣吸附改性 KOH NaOH