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Bearing fault diagnosis based on a multiple-constraint modal-invariant graph convolutional fusion network

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Deforestation in Latin America in the 2000s predominantly occurred outside of typical mature forests

高速铁路（英文） 2024年第2期2卷 92-100页

作者： Zhongmei Wang Pengxuan Nie Jianhua Liu Jing he Haibo Wu Pengfei Guo College of Railway Transportation Hunan University of TechnologyZhuzhou 412007China Wuxi Maimurun Environmental Technology Co. LtdWuxi 214000China

Multisensor data fusion method can improve the accuracy of bearing fault diagnosis,in order to address the problems of single-sensor data types and the insufficient exploration of redundancy and complementarity between different modal data in most existing multisensor data fusion methods for bearing fault diagnosis,a bearing fault diagnosis method based on a Multiple-Constraint Modal-Invariant Graph Convolutional Fusion Network(MCMI-GCFN)is proposed in this ***,a Convolutional Autoencoder(CAE)and Squeeze-and-Excitation Block(SE block)are used to extract features of raw current and vibration ***,the model introduces source domain classifiers and domain discriminators to capture modal invariance between different modal data based on domain adversarial training,making use of the redundancy and complementarity between multimodal ***,the spatial ag-gregation property of Graph Convolutional Neural Networks(GCN)is utilized to capture the dependency relationship between current and vibration modes with similar time step features for accurately fusing contextual semantic ***,the validation is conducted on the public bearing damage current and vibration dataset from Paderbom *** experimental results showed that the delivered fusion method achieved a bearing fault diagnosis accuracy of 99.6％,which was about 9％-11.4％better than that with nonfusion methods.

关键词： Bearing fault diagnosis data fusion Domain adversarial training GCN

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The Innovation 2024年第3期5卷 88-98页

作者： Zhiyu Zhang Wenjian Ni Shaun Quegan Jingming Chen Peng Gong Luiz Carlos Estraviz Rodriguez Huadong Guo Jiancheng Shi Liangyun Liu Zengyuan Li Yating he Qinhuo Liu Yosio Shimabukuro Guoqing Sun Key Laboratory of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Shijingshan DistrictBeijing 100049China Chinal of Mathematics and Statistics University of SheffieldSheffield S37RHUK Department of Geography and Program in Planning University of TorontoTorontoON M5S 3G3Canada Department of Earth Sciences and Department of Geography University of Hong KongHong KongChina Forest Science Department Luiz de Queiroz College of AgricultureUniversity of São PauloAv.Pádua Dias11Piracicaba 13418-900Brazil National Space Science Center Chinese Academy of SciencesBeijing 100190China Institute of Forest Resource Information Techniques Chinese Academy of ForestryBeijing 100091China Research Institute of Forest Policy and Information Chinese Academy of ForestryBeijing 100091China Remote Sensing Department National Institute for Space Research(INPE)Av.dos Astronautas 1758São Josédos Campos 12227-010Brazil Department of Geographical Sciences University of MarylandCollege ParkMD 20742USA

The role of tropical forests in the global carbon budget remains controversial,as carbon emissions from deforestation are highly *** high uncertainty arises from the use of either fixed forest carbon stock density or maps generated from satellite-based optical reflectance with limited sensitivity to biomass to generate accurate estimates of emissions from *** space missions aiming to accurately map the carbon stock density rely on direct measurements of the spatial structures of forests using lidar and *** found that lost forests are special cases,and their spatial structures can be directly measured by combining archived data acquired before and after deforestation by space missions principally aimed at measuring ***,using biomass mapping,we obtained new estimates of carbon loss from deforestation ahead of forthcoming space ***,using a high-resolution map of forest loss and the synergy of radar and lidar to estimate the aboveground biomass density of forests,we found that deforestation in the 2000s in Latin America,one of the severely deforested regions,mainly occurred in forests with a significantly lower carbon stock density than typical mature forests.

关键词： forest Latin lidar

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论国际私法视域下基本权利的介入路径

人权 2024年第2期 106-123页

作者：何叶华南京航空航天大学人文与社会科学学院南京航空航天大学航空法与空间法研究院

近年来,国际私法学者通过引入宪法理论装置来论证基本权利对国际私法的辐射效力,但对于基本权利应以何种方式介入涉外民商事司法实践尚缺乏体系化研究。在国际私法的发展过程中,公共政策作为法院地实体价值的历史载体,一直以来发挥着重... 详细信息

近年来,国际私法学者通过引入宪法理论装置来论证基本权利对国际私法的辐射效力,但对于基本权利应以何种方式介入涉外民商事司法实践尚缺乏体系化研究。在国际私法的发展过程中,公共政策作为法院地实体价值的历史载体,一直以来发挥着重要的价值审查功能。当国际私法案件中出现与基本权利价值相悖的情况时,公共政策通过对法律选择结果的间接排除,保障基本权利所承载的人权价值不受侵犯。但由于受到联系程度与相对性条件限制,传统公共政策路径存在一定局限,无法为基本权利提供充分保护,故需要法官转变逻辑范式,超越双边选法模式,引入基本权利的直接介入路径。直接介入路径以基本权利的保护范围、干预与正当化为逻辑分析框架,能够在权衡不同法益冲突之际,最大限度保护当事人的基本权利。

关键词：基本权利介入路径公共政策分析框架

杂技创新就是把“不可能”变成“可能”——访杂技表演艺术家、杂技教育家孙力力

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中国文艺评论 2024年第7期 110-124,I0004页

作者：何瑞涓中国艺术报社

孙力力简介:1950年11月出生于杂技世家。杂技表演艺术家、杂技教育家,历任中国杂技家协会副主席、顾问,中国杂技团常务副团长、副总经理、艺术总监、创意总监,北京市杂技学校副校长、北京市国际艺术学校教学艺术总监等。荣获摩纳哥蒙特... 详细信息

孙力力简介:1950年11月出生于杂技世家。杂技表演艺术家、杂技教育家,历任中国杂技家协会副主席、顾问,中国杂技团常务副团长、副总经理、艺术总监、创意总监,北京市杂技学校副校长、北京市国际艺术学校教学艺术总监等。荣获摩纳哥蒙特卡洛国际马戏节“特殊贡献奖”、匈牙利布达佩斯国际马戏艺术节“终身成就奖”、“全国三八红旗手”、中国杂技家协会首届“德艺双馨文艺工作者”称号、中国杂技“金菊奖”终身成就奖、“北京市优秀共产党员”、“北京市三八红旗奖章”、“北京市先进工作者”、首都“巾帼十杰”等诸多国际国内、行业内外荣誉。

关键词：中国杂技团终身成就奖金菊奖艺术总监文艺工作者创意总监蒙特卡洛学校副校长

基于三维质量评价模型构建脊柱外科专科护理质量标准

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中国实用护理杂志 2024年第9期40卷 679-686页

作者：佟冰渡黄新荷何小燕张琳陈亚萍中国医学科学院北京协和医院骨科北京100730 北京中医药大学护理学院北京100029

目的探讨并构建脊柱外科专科护理质量标准,为改善脊柱外科专科护理质量提供科学依据。方法以结构-过程-结果三维质量评价模型为理论框架,经系统文献回顾及半结构式访谈初步形成条目池;2023年5—7月,通过2轮德尔菲专家函询法进行条目的... 详细信息

目的探讨并构建脊柱外科专科护理质量标准,为改善脊柱外科专科护理质量提供科学依据。方法以结构-过程-结果三维质量评价模型为理论框架,经系统文献回顾及半结构式访谈初步形成条目池;2023年5—7月,通过2轮德尔菲专家函询法进行条目的删选、论证和校正,最终确定各层次标准条目。结果2轮函询专家的积极系数分别为0.90和1.00,权威系数分别为0.946和0.951。第1轮一、二、三级标准的Kendall协调系数分别为0.161、0.095和0.108,第2轮一、二、三级标准的Kendall协调系数分别为0.162、0.088和0.100,差异均有统计学意义(均P<0.05)。最终构建的质量标准包括一级标准3个(结构标准、过程标准及结果标准)、二级标准20个、三级标准60个。结论基于结构-过程-结果三维质量评价模型构建的脊柱外科专科护理质量标准具有较高的可信度和科学性,可为临床护理人员提供目标激励,为脊柱外科专科护理质量评价提供依据,促进护理专业化发展和专科护理内涵建设。

关键词：脊柱护理质量质量控制

NLRP3 activation in macrophages promotes acute intestinal injury in neonatal necrotizing enterocolitis

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World Journal of Pediatrics 2024年第2期20卷 153-164页

作者： Bo Shi Cheng-Jie Lyu Zhen-Kai Le Hao-Sen Ji Yi Xiao Yuan-Yuan Zhang Shou-Jiang Huang lin-Jun Yu Qiang Shu Jin-Fa Tou Deng-Ming Lai Department of Neonatal Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China Department of Pulmonology Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China Department of Thoracic and Cardiovascular Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China

Background Macrophages are involved in various immune inflammatory disease *** study aimed to investigate the role and mechanism of macrophages in regulating acute intestinal injury in neonatal necrotizing enterocolitis(NEC).Methods CD68,nucleotide-binding oligomerization domain,leucine-rich repeat,and pyrin domain-containing 3(NLRP3),cysteine aspartate-specific protease-1(caspase-1),and interleukin-1β(IL-1β)in paraffin sections of intestinal tissues from NEC and control patients were detected with immunohistochemistry,immunofluorescence,and western *** pet milk,hypoxia and cold stimulation were used to establish a mouse(wild type and Nlrp3^(-/-))model of *** mouse macrophage(RAW 264.7)and rat intestinal epithelial cell-6 lines were also cultured followed by various ***,intestinal epithelial cell injuries,and IL-1β release were *** Compared to the gut“healthy”patients,the intestinal lamina propria of NEC patients had high macrophage infiltration and high NLRP3,caspase-1,and IL-1β ***,in vivo,the survival rate of Nlrp3^(-/-)NEC mice was dramatically improved,the proportion of intestinal macrophages was reduced,and intestinal injury was decreased compared to those of wild-type NEC ***3,caspase-1,and IL-1β derived from macrophages or supernatant from cocultures of macrophages and intestinal epithelial cells also caused intestinal epithelial cell *** Macrophage activation may be essential for NEC ***3/caspase-1/IL-1β cellular signals derived from macrophages may be the underlying mechanism of NEC development,and all these may be therapeutic targets for developing treatments for NEC.

关键词： Caspase-1 Interleukin-1β Macrophage Necrotizing enterocolitis NLRP3

正念减压联合多模式镇痛在膝/髋关节置换病人中的应用

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护理研究 2024年第11期38卷 2048-2052页

作者：王靖雯李琳何晓红闫观丽广西医科大学第一附属医院广西530021

目的:探讨正念减压联合多模式镇痛对膝/髋关节置换病人的应用效果。方法:选取2021年7月—2023年6月在我院骨关节外科行膝/髋关节置换的80例病人为研究对象,随机分为对照组和试验组各40例。对照组给予多模式镇痛,试验组给予正念减压联合... 详细信息

目的:探讨正念减压联合多模式镇痛对膝/髋关节置换病人的应用效果。方法:选取2021年7月—2023年6月在我院骨关节外科行膝/髋关节置换的80例病人为研究对象,随机分为对照组和试验组各40例。对照组给予多模式镇痛,试验组给予正念减压联合多模式镇痛的镇痛方式。比较两组干预后的正念水平、焦虑情况、生活质量、关节炎症状、疼痛程度及生活质量。结果:干预后,试验组焦虑自评量表(SAS)、骨关节炎指数(WOMAC)、数字疼痛评分表(NRS)评分低于对照组,QoR-40术后康复质量评分量表、五因素正念量表(FFMQ)、健康调查简表(SF-36)评分高于对照组,差异均有统计学意义(P<0.05)。结论:正念减压联合多模式镇痛可以缓解膝/髋关节置换病人疼痛、焦虑及骨关节炎症状,提高病人正念水平及生活质量。

关键词：正念减压多模式镇痛关节置换术后恢复生活质量护理

LP modes exchange based on multiplane light conversion

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Chinese Optics Letters 2024年第3期22卷 14-18页

作者：钟亚楠林楚璇方浚丞雷霆袁小聪 Nanophotonics Research Centre Shenzhen Key Laboratory of Micro-Scale Optical Information Technology&Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China

data exchange between different mode channels is essential in the optical communication network with mode-division multiplexing(MDM).However,there are challenges in realizing mode exchange with low insert loss,low mode crosstalk,and high ***,we designed and fabricated a mode exchange device based on multiplane light conversion(MPLC),which supports the transmission of LP01,LP11a,LP11b,and LP21 modes in the C-band and *** simulated exchanged mode purities are greater than 85%.The phase masks were fabricated on a silicon substrate to facilitate the integration with optical systems,with an insert loss of less than 2.2 dB and mode crosstalk below-21 dB due primarily to machining inaccuracies and alignment *** carried out an optical communication experiment with 10 Gbit/s OOK and QPSK data transmission at the wavelength of 1550 nm and obtained excellent performance with the *** paves the way for flexible data exchange as a building block in MDM optical communication networks.

关键词： mode exchange mode-division multiplexing multiplane light conversion

硬件损伤下多窃听器NOMA系统平均保密容量分析

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第2期41卷 244-252页

作者：何安苏虞湘宾周玥南京航空航天大学电子信息工程学院中国南京211106 中国科学院无线传感器网络与通信重点实验室中国上海200050

研究了非正交多址(Non‑orthogonal‑multiple‑access,NOMA)接入通信系统的物理层安全性能。当基站采用下行NOMA方案发送信息时,由于信道的开放性,信息容易被窃听,而当存在多个随机分布的窃听者时,安全性能会进一步降低。为了增强存在硬... 详细信息

研究了非正交多址(Non‑orthogonal‑multiple‑access,NOMA)接入通信系统的物理层安全性能。当基站采用下行NOMA方案发送信息时,由于信道的开放性,信息容易被窃听,而当存在多个随机分布的窃听者时,安全性能会进一步降低。为了增强存在硬件损伤系统的物理层安全性能,本文考虑保护区的方法,针对地面用户与基站之间存在直连链路的情况,采用莱斯衰落来建模小尺度衰落。本文还假设多个窃听者的位置遵循齐次泊松点过程(Homogeneous Poisson point process,HPPP),借助高斯切比雪夫积分公式,推导了平均保密容量的闭式表达式,并给出了在高信噪比情况下的渐近表达式来获得进一步见解。仿真结果验证了保护区方法在增强安全性能方面的有效性,并说明了不同参数对系统保密性能的影响。

关键词：平均保密容量非正交多址硬件损伤莱斯衰落物理层安全