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Attribute reduction based on background knowledge and its application in classification of astronomical spectra data

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High Technology Letters 2007年第4期13卷 422-427页

作者：张继福 li yinhua Zhang Sulan School of Computer Science and Technology Taiyuan University of Science and Technology Taiyuan 030024 P.R. China National laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing 100080 P.R. China

To improve the efficiency of the attribute reduction, we present an attribute reduction algorithm based on background knowledge and information entropy by making use of background knowledge from research fields. Under the condition of known background knowledge, the algorithm can not only greatly improve the efficiency of attribute reduction, but also avoid the defection of information entropy partial to attribute with much value. The experimental result verifies that the algorithm is effective. In the end, the algorithm produces better results when applied in the classification of the star spectra data.

关键词：粗糙集合理论平均信息量天文光谱计算机技术

互动式健康教育模式在桡骨远端骨折保守治疗患者中的应用

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中国临床护理 2024年第5期16卷 286-289页

作者：王静李银华郑州市骨科医院急诊科郑州450000

目的探讨互动式健康教育模式在桡骨远端骨折保守治疗患者中的应用效果。方法选取2022年3月-2023年3月笔者所在医院收治的118例桡骨远端骨折行保守治疗的患者为研究对象,采用随机数字法将其分为对照组和观察组,各59例。对照组采用常规健... 详细信息

目的探讨互动式健康教育模式在桡骨远端骨折保守治疗患者中的应用效果。方法选取2022年3月-2023年3月笔者所在医院收治的118例桡骨远端骨折行保守治疗的患者为研究对象,采用随机数字法将其分为对照组和观察组,各59例。对照组采用常规健康教育,观察组采用互动式健康教育。比较2组治疗依从性、腕关节功能恢复情况以及生活质量。结果干预后,观察组体位固定、康复锻炼、定期复诊依从人数均多于对照组(χ^(2)=4.933,P=0.026;χ^(2)=6.556,P=0.010;χ^(2)=5.567,P=0.018),观察组掌屈、背伸、桡偏、尺偏角度均优于对照组(t=7.279,P<0.001;t=6.574,P<0.001;t=5.416,P<0.001;t=5.228,P<0.001),生活质量总分高于对照组(t=11.556,P<0.001)。结论互动式健康教育能够提高桡骨远端骨折保守治疗患者的治疗依从性,促进其腕关节功能恢复,从而提升其生活质量。

关键词：桡骨远端骨折保守治疗互动式健康教育治疗依从性生活质量

重症监护病房患者下肢深静脉血栓形成的风险评估及预防效果分析

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中国医药 2024年第6期19卷 867-871页

作者：李银花李灯凯刘磊航空总医院重症医学科北京100010

目的探讨重症监护病房(ICU)患者下肢深静脉血栓形成(DVT)的风险评估实施情况及预防效果。方法收集2022年7月1日至2023年6月30日于航空总医院ICU住院的148例患者的临床资料进行回顾性分析。根据入ICU 24 h内是否发生DVT分为DVT组(45例)和... 详细信息

目的探讨重症监护病房(ICU)患者下肢深静脉血栓形成(DVT)的风险评估实施情况及预防效果。方法收集2022年7月1日至2023年6月30日于航空总医院ICU住院的148例患者的临床资料进行回顾性分析。根据入ICU 24 h内是否发生DVT分为DVT组(45例)和无DVT组(103例),无DVT组患者进而根据入ICU 2周内(24 h后)评估结果分为新发DVT组(16例)及无新发DVT组(87例)。总结通过DVT风险评分、D-二聚体、纤维蛋白原水平对ICU患者DVT的评估情况,观察针对DVT给予相关预防措施后的效果。结果DVT组急性生理学与慢性健康状况评分系统Ⅱ评分高于无DVT组(P0.05)。DVT组的D-二聚体、纤维蛋白原水平均显著高于无DVT组[(10.7±3.4)mg/L比(3.8±1.7)mg/L、(486±133)g/L比(376±133)g/L](均P<0.05)。在无DVT组中,接受基础预防、机械预防、单纯药物预防、机械预防+药物预防者院内DVT的发生率分别为70.0%(7/10)、8.9%(4/45)、14.3%(2/14)、8.8%(3/34),机械预防、单纯药物预防及机械预防+药物预防患者院内DVT发生率均明显低于单纯基础预防患者,机械预防及机械预防+药物预防患者院内DVT发生率低于单纯药物预防患者(均P<0.05)。结论入住ICU的患者下肢DVT发生率较高,可采用D-二聚体、纤维蛋白原水平以及DVT风险评分综合评估患者DVT发生风险,并指导相应预防措施,通过对ICU患者采用积极的预防措施,可有效避免DVT的发生。

关键词：深静脉血栓形成重症监护病房风险评估预防措施

3D打印在计算机辅助产品设计教学中的应用与实践

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创新创业理论研究与实践 2024年第5期7卷 143-146,175页

作者：袁加奇郦银花王长林张亮江苏开放大学信息工程学院江苏南京210036

为提高计算机辅助产品设计课程的教学质量,激发学生的专业学习兴趣,该教学设计将三维建模软件Solidworks与3D打印技术结合,并融入中华传统文化榫卯结构的设计案例,通过理论教学、产品设计、三维建模、打印制造的教学过程,提升学生的专... 详细信息

为提高计算机辅助产品设计课程的教学质量,激发学生的专业学习兴趣,该教学设计将三维建模软件Solidworks与3D打印技术结合,并融入中华传统文化榫卯结构的设计案例,通过理论教学、产品设计、三维建模、打印制造的教学过程,提升学生的专业技能,培养学生工匠精神和创新思维。

关键词：计算机辅助产品设计 3D打印教学设计三维建模创新思维

Alcohol-dispersed polymer complex as an effective and durable interface modifier for n-i-p perovskite solar cells

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Journal of Energy Chemistry 2024年第6期93卷 243-252,I0007页

作者： Chang Shi Jiangling li Shuping Xiao Ziyi Wang Wuchen Xiang Rui Wu Yang liu yinhua Zhou Weijun Ke Guojia Fang Pingli Qin Hubei Key Laboratory of Optical Information and Pattern Recognition Wuhan Institute of TechnologyWuhan 430205HubeiChina Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074HubeiChina School of Physics and Technology Key Laboratory of Artificial Micro-and Nano-structures of the Ministry of Education and School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina

Abundant interfacial defects remain a significant challenge that hampers both the efficiency and stability of perovskite solar cells(PSCs).Herein,an alcohol-dispersed conducting polymer complex,denoted as PEDOT:F(Poly(3,4-ethylene dioxythiophene):Perfluorinated sulfonic acid ionomers),is introduced into the interface between perovskite and hole transporting layer in regular-structured PSCs.PEDOT:F serves as a multi-functional interface layer(filling grain boundaries and covering perovskite's grain-surface)to achieve a robust interaction with organic groups within perovskites,which could induce a structural transformation of PEDOT to increase its conductivity for the efficient hole-transport.Furthermore,the strong interaction between PEDOT and perovskites could promote an effective coupling of undercoordinated Pb~(2+)ions with the lone electron pairs near O&S atoms in PEDOT molecules,thereby enhancing defect passivation.Additionally,PEDOT:F with inherent hydrophobic properties prevents effectively moisture invasion into perovskites for the improved long-term stability of the PSCs.Consequently,the PEDOT:F-based PSCs achieved a champion efficiency of 24.81%,and maintained ca.92%of their initial efficiency after 7680 h of storage in a dry air environment,accompanied by the enhanced photothermal stability.

关键词： Alcohol-dispersed conducting polymer complex Interface passivation Grain boundaries Device stability Perovskite solar cells

Nanoparticle-based lift-off technique for ultra-thin nanoporous film preparation

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Science in China(Series F) 2008年第6期51卷 819-824页

作者： WANG Wei ZHAO Yu LEI yinhua li ZhiHong National Key Laboratory of Nano/Micro Fabrication Technology Institute of Microelectronics Peking Uni-versity Beijing 100871 China

Ultra-thin membrane with nanoscale through hole has great potential in biomedical applications, where precise controllability of porosity, pore size and film thickness is urgently required. The present work proposed a cost-effective way to prepare the ultra-thin nanoporous film with a promising controllability. Monodispersed nanoparticle, rather than photoresist, is used as the sacrificial material for this new lift-off process. By releasing the particles, holes can be achieved with predeter-mined characters. A 110 nm-thick nanoporous aluminum film with well-controlled pore＇s diameter was successfully fabricated to validate the technique. The technique has wider process window and better applicability than other nanofabrication methods.

关键词： nanoparticle lift-off nanoporous film

Intratumoral heterogeneity of HER2 gene amplification in occult breast cancer

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Chinese Medical Journal 2014年第20期127卷 3676-3677页

作者： Xin ling Zhang Hong Zhang Shuang Ye Jingming li Ting liu yinhua Breast Disease Center Peking University First Hospital Beljing100034 China

Occult breast cancer （OBC） is an uncommon type of breast cancer, with palpable masses in the axillary area as the initial symptom. We report a case of OBC with HER2 genetic heterogeneity and discuss the impact of an unusual HER2 amplification pattern.A 56-year-old female was discovered a palpable mass in the right axillary area. She underwent a lymph node excisional biopsy at another hospital approximately one month before referral to our hospital service for further evaluation. The biopsy showed lymph tissue with tumor cell infiltrating in the form of sheets or nests. The tumor cells were larging in size, obviously atypical, and showed prominent nucleoli and intracellular keratosis. Mammography, chest X-ray, chest computed tomography （CT）, abdominal ultrasonography （US）, and positron emission tomography- CT （PET-CT）, which were also performed at the initial hospital, showed no abnormal findings.

关键词： breast neoplasm occult breast cancer HER2 genetic heterogeneity

陕西紫阳志留系温洛克统莫企森弓笔石(Cyrtograptus murchisoni)及地层意义

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西北地质 2022年第4期55卷 175-182页

作者：王健王欣李银华中国地质调查局西安地质调查中心陕西西安710054 自然资源部中志留统底界层型剖面-陕西紫阳野外科学观测基地陕西西安710054 陕西自然博物馆陕西西安710061

在紫阳芭蕉口-A剖面上发现了多个完整的莫企森弓笔石(Cyrtograptus murchisoni)。笔者对其始部、主枝、一级幼枝、二级幼枝、胞管等特征进行了描述和数据统计,并与国内外相似的弓笔石类群进行了详细得对比。该种弓笔石是志留系重要的带... 详细信息

在紫阳芭蕉口-A剖面上发现了多个完整的莫企森弓笔石(Cyrtograptus murchisoni)。笔者对其始部、主枝、一级幼枝、二级幼枝、胞管等特征进行了描述和数据统计,并与国内外相似的弓笔石类群进行了详细得对比。该种弓笔石是志留系重要的带化石,同时它的首现是国际温洛克统底界的标志;该种化石的特点是笔石主枝粗壮,幼枝发育,常见二级胞管幼枝,始部有旋圈,胞管形态鸟喙状,口刺较短。对该种化石的深入研究为中国和国际温洛克统底界的对比和弓笔石演化研究提供了重要依据。

关键词： Cyrtograptus murchisoni 中志留统温洛克统陕西紫阳地区

Development of a rapid and efficient system for CR genes identification based on hairy root transformation in Brassicaceae

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Horticultural Plant Journal 2024年第4期10卷 1049-1060页

作者： Wenlin Yu Lu Yang Yuanyuan Xiang Rongde li Xueqing Zhou Longcai Gan Xianyu Xiang Yunyun Zhang Lei Yuan Yanqing Luo Genze li Youning Wang yinhua Chen Peng Chen Chunyu Zhang National Key Laboratory of Crop Genetic Improvement and College of Plant Science and Technology Huazhong Agricultural University National Agro-Tech Extension and Service Center Industrial Crops Research Institute Yunnan Academy of Agricultural Sciences College of Agronomy Northwest A&F University National Key Laboratory for Tropical Crop Breeding Sanya Nanfan Research InstituteHainan University

Many economically important crops and vegetables belonging to the cruciferous family are heavily endangered by clubroot disease caused by Plasmodiophora brassicae infection.Breeding of clubroot resistant cultivars based on mapping and cloning of resistant genes is commonly regarded as the most cost-effective and efficient way to fight against this disease.The traditional way of R gene functional validation requires stable transformation that is both time-and labor-consuming.In this study,a rapid and efficient hairy-root transgenic protocol mediated by Agrobacterium rhizogenes was developed.The transformation positive rate was over 80% in Brassica napus showed by GUS reporter gene and this transformation only took 1/6 of the time compared with stable transformation.The system was applicable to different B.napus varieties and other cruciferous crops including Brassica rapa and Brassica oleracea.In particular,two known CR genes,CRA3.7.1 and CRA8.2.4 were used respectively,as example to show that the system works well for CR gene study combined with subsequent P.brassicae infection in B.napus.Most importantly,it works both in over-expression that led to disease resistance,as well as in RNAi which led to disease susceptible phenotype.Therefore,this system can be used in batch-wise identification of CR genes,and also offered the possibility of manipulating key genes within the P.brassicae genome that could improve our knowledge on host-pathogen interaction.

关键词： Brassicaceae Agrobacterium rhizogenes Hairy root transformation Clubroot Gene function