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Deep learning methods for roping defect analysis in aluminum alloy sheets: prediction and grading

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Advances in Manufacturing 2024年第3期12卷 576-590页

作者： Yuan-zhe hu Ru-Xue Liu Jia-Peng He Guo-Wei Zhou Da-Yong Li State Key Laboratory of Mechanical Systems and Vibration Shanghai Jiao Tong UniversityShanghai200240People’s Republic of China School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240People’s Republic of China

Roping is a severe band-like surface defect that occurs in deformed aluminum alloy *** roping prediction and rating are essential for industrial ***,the authors introduced an artificial neural network(ANN)model to efficiently forecast roping behavior across the thickness of large regions with texture *** this study,the previously proposed ANN model for roping prediction is briefly reviewed,and a few-shot learning(FSL)-based method is developed for roping grading with limited *** consider the directionality of the roping patterns,the roping dataset constructed from experimental observations is transformed into the frequency domain for more compact characterization.A transfer-based FSL method is further presented for grade roping with manifold mixup regularization and the Sinkhorn mapping algorithm.A new component-focused representation is also implemented for data-processing,exploiting the close correlation between roping and power distribution in the frequency *** ultimate FSL method achieved an optimal accuracy of 95.65%in roping classification with only five training samples per class,outperforming four typical FSL *** FSL approach can be applied to grade the roping morphologies predicted by the ANN ***,the combination of prediction and grading using deep learning provides a new paradigm for roping analysis and control.

关键词： Roping Artificial neural network(ANN) Aluminum alloys Few-shot classification Surface morphology

Beyond clinical trials:CDK4/6 inhibitor efficacy predictors and nomogram model from real‐world evidence in metastatic breast cancer

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Cancer Innovation 2024年第6期3卷 58-75页

作者： Binliang Liu zhe‐Yu hu Ning Xie Liping Liu Jing Li Xiaohong Yang huawu Xiao Xuran Zhao Can Tian hui Wu Jun Lu Jianxiang Gao Xuming hu Min Cao zhengrong Shui Yu Tang Quchang Ouyang Department of Breast Cancer Medical Oncology Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangshaHunanChina Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Department of Gastroenterology The Third Xiangya Hospital of Central South UniversityChangshaHunanChina

Background:CDK4/6 inhibitors(CDK4/6i)have shown promising results in the treatment of hormone receptor‐positive(HR+)metastatic breast cancer(MBC)when combined with endocrine therapy(ET).It is crucial to evaluate the actual effectiveness and safety of CDK4/6i in clinical practice,as well as to analyze the factors that can predict their ***:Patients with HR+MBC who received CDK4/6i‐based therapy between May 2016 and May 2023 at hunan Cancer Hospital were evaluated for progression‐free survival(PFS).Adverse reactions were assessed based on the National Cancer Institute Common Toxicity Criteria(version 5.0).Results:This study included 344 patients,with a median PFS(mPFS)of 12.8 months(range:10.4–15.2 months).After adjustment,Cox multivariate regression analysis revealed that visceral metastasis(specifically liver and brain metastases),Eastern Cooperative Oncology Group Performance Status(ECOG PS)≥1,estrogen receptor≤80%,progesterone receptor≤10%,Ki‐67>30%,and treatment in later stages were significant factors associated with reduced *** on this,we created a prognostic nomogram and validated its performance,obtaining a C‐index of 0.714(95%confidence interval:0.640–0.787)as well as reliable calibration and clinical *** mPFS of CDK4/6i rechallenge was 7.7 months;for patients who initially discontinued CDK4/6i for reasons other than disease progression,CDK4/6i rechallenge still provided a mPFS of 11.4 *** tolerability and safety of combining CDK4/6is with ET were *** events led to treatment discontinuation in 3.8%of ***(29.1%),leukopenia(13.7%),and anemia(4.1%)were the primary grade 3/4 adverse ***:This real‐world study highlights the ample efficacy and reasonable safety of combined CDK4/6i and ET in patients with HR+*** treatment decisions and ongoing safety monitoring are important to optimize the therapeutic benefit of CDK4/6i treatment.

关键词： breast cancer CDK4/6 inhibitor efficacy predictive factors real‐word study

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西魏蜀地的政区建设与治理

史学月刊 2024年第2期 13-25页

作者：王兴振胡哲兰州大学历史文化学院西北民族大学历史文化学院甘肃兰州730030

在萧梁末期荆益之争的趋势下,萧纪出蜀东征失败,导致蜀地势弱。宇文泰在西魏内部力排众议伐蜀,占据蜀地核心区。其后在“改置州郡及县”的方针下,以“剑阁-成都”一线为主轴,长江沿线为辅翼,大力改造、建设蜀地的政区,以削弱梁朝的影响... 详细信息

在萧梁末期荆益之争的趋势下,萧纪出蜀东征失败,导致蜀地势弱。宇文泰在西魏内部力排众议伐蜀,占据蜀地核心区。其后在“改置州郡及县”的方针下,以“剑阁-成都”一线为主轴,长江沿线为辅翼,大力改造、建设蜀地的政区,以削弱梁朝的影响。平蜀与蜀地政区建设,为西魏营造了巨大的权力空间。为杜绝武川“宿将”、长安魏廷染指蜀地,同州霸府通过垄断入蜀、出蜀的征调渠道,建立对蜀地地方行政系统的掌控权。但在此过程中,同州霸府内部围绕如何治蜀的问题产生了分歧。“承制”治蜀的尉迟迥意图施行文治教化的路线,大概偏离了宇文泰的设想,被征还朝。资历深厚的宇文贵代镇蜀地,践行军国体制的治蜀路线。该路线的残存内容——都督治县,被《北周文王碑》保留下来,成为考察魏末周初蜀地治理的重要线索。

关键词：北周文王碑蜀地政区宇文泰尉迟迥都督治县

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Constructing a nomogram to predict overall survival of colon cancer based on computed tomography characteristics and clinicopathological factors

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World Journal of Gastrointestinal Oncology 2024年第10期16卷 4104-4114页

作者： zhe-Xing hu Yin Li Xuan Yang Yu-Xia Li Yao-Yao He Xiao-hui Niu Ting-Ting Nie Xiao-Fang Guo Zi-Long Yuan Department of Radiology Hubei Cancer HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430079Hubei ProvinceChina Department of Radiology Wuhan Children’s HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014Hubei ProvinceChina College of Informatics Huazhong Agriculture UniversityWuhan 430070Hubei ProvinceChina

BACKGROUND The colon cancer prognosis is influenced by multiple factors,including clinical,pathological,and non-biological ***,only a few studies have focused on computed tomography(CT)imaging ***,this study aims to predict the prognosis of patients with colon cancer by combining CT imaging features with clinical and pathological characteristics,and establishes a nomogram to provide critical guidance for the individualized *** To establish and validate a nomogram to predict the overall survival(OS)of patients with colon *** A retrospective analysis was conducted on the survival data of 249 patients with colon cancer confirmed by surgical pathology between January 2017 and December *** patients were randomly divided into training and testing groups at a 1:1 *** and multivariate logistic regression analyses were performed to identify the independent risk factors associated with OS,and a nomogram model was constructed for the training *** curves were calculated using the Kaplan–Meier *** concordance index(C-index)and calibration curve were used to evaluate the nomogram model in the training and testing *** Multivariate logistic regression analysis revealed that lymph node metastasis on CT,perineural invasion,and tumor classification were independent prognostic factors.A nomogram incorporating these variables was constructed,and the C-index of the training and testing groups was 0.804 and 0.692,*** calibration curves demonstrated good consistency between the actual values and predicted probabilities of *** A nomogram combining CT imaging characteristics and clinicopathological factors exhibited good discrimination and *** can aid clinicians in risk stratification and postoperative monitoring and provide important guidance for the individualized treatment of patients with colon cancer.

关键词： Colon cancer Nomogram Prognosis Overall survival Computed tomography Clinicopathology

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欧盟碳边境调节机制对产品出口成本影响评估

中国环境科学 2024年第4期44卷 1788-1794页

作者：张蓝心温宗国许毛胡喆清华大学环境学院清华大学工业节能与绿色发展评价中心北京100084

碳边境调节机制(CBAM)带来的产品出口成本影响存在较高的不确定性.通过剖析CBAM条例规则,对CBAM关键要素的核算范围与规则进行研判,提出了评估CBAM出口成本影响的方法学框架,并以粗钢产品为例开展了实证研究.结果表明,在CBAM的系统边界... 详细信息

碳边境调节机制(CBAM)带来的产品出口成本影响存在较高的不确定性.通过剖析CBAM条例规则,对CBAM关键要素的核算范围与规则进行研判,提出了评估CBAM出口成本影响的方法学框架,并以粗钢产品为例开展了实证研究.结果表明,在CBAM的系统边界与排放核算范围内,我国1t转炉粗钢的嵌入排放为1.73tCO_(2)eq,我国向欧盟出口粗钢产品的增量成本为37.26欧元/t.基于评估结果并统筹考虑我国与欧盟的气候政策体系差异,提出了包括隐性碳价谈判、降低产品碳排放强度、调整出口结构在内的多项应对CBAM的政策建议.

关键词：碳边境调节机制(CBAM) 嵌入排放影响评估钢铁行业

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大历史观视域下马克思劳动价值论探析

巢湖学院学报 2024年第1期26卷 16-23页

作者：胡哲贵州师范大学马克思主义学院贵州贵阳550025

资本与劳动关系作为马克思主义政治经济学中一对基本矛盾,始终贯穿于剩余价值的生产、流通与分配过程中,表征着资本主义生产力和生产关系的变化发展。立足于大历史观的过去、现在、未来的时间轴线,对劳动价值论与资本的辩证关系进行较... 详细信息

资本与劳动关系作为马克思主义政治经济学中一对基本矛盾,始终贯穿于剩余价值的生产、流通与分配过程中,表征着资本主义生产力和生产关系的变化发展。立足于大历史观的过去、现在、未来的时间轴线,对劳动价值论与资本的辩证关系进行较为全面的空间探析。时间与空间相交织,不仅能充分彰显马克思劳动价值论的真理性、实践性和发展性特征,也能实现对资本进行全面而科学的批判与超越。正是在不断推进马克思主义政治经济学发展中,科学社会主义才能得以最终确立。在新时代,合理运用马克思科学劳动价值论,为中国特色社会主义经济发展提供理论和实践指导,赋能中国式现代化建设。

关键词：大历史观劳动价值论真理性实践性发展性

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基于多保真度模型的高比例新能源配电网潮流不确定性表征方法

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中国电机工程学报 2024年第8期44卷 2965-2977,I0003页

作者：胡喆王晗严正徐潇源陈玥许少伦电力传输与功率变换控制教育部重点实验室(上海交通大学) 上海市闵行区200240 上海非碳基能源转换与利用研究院上海市闵行区200240 香港中文大学机械与自动化工程系中国香港特别行政区999077

在能源生产和消费低碳化转型的背景下,如何量化源-荷不确定性的影响,高效、准确地实现配电网潮流不确定性表征,对配电网的安全、可靠运行具有重要意义。该文从计算效率和准确性两方面出发,将现有基于概率潮流的不确定性表征方法分为高... 详细信息

在能源生产和消费低碳化转型的背景下,如何量化源-荷不确定性的影响,高效、准确地实现配电网潮流不确定性表征,对配电网的安全、可靠运行具有重要意义。该文从计算效率和准确性两方面出发,将现有基于概率潮流的不确定性表征方法分为高、低保真度模型两类,综合分析了两种方法存在的问题。在此基础上,提出一种基于多保真度模型的高比例新能源配电网潮流不确定性表征方法,以实现潮流状态变量矩信息的高精度估计与概率分布函数的刻画。在矩信息估计方面,提出结合高、低保真度模型特点的最优输入样本数量分配方法,在给定总计算负担下实现了输出变量矩信息的无偏估计。在概率分布函数刻画方面,提出基于综合启动函数的概率分布函数刻画方法,利用多保真度模型提供的先验信息,提升概率分布函数拟合的准确性。通过118节点配电网的仿真计算,验证所提方法的有效性。

关键词：不确定性表征概率潮流多保真度模型统计矩概率分布函数

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Mammals of Gaoligong Mountain in China:Diversity,distribution,and conservation

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Zoological Research(Diversity and Conservation) 2024年第1期1卷 3-19页

作者： Quan Li Xue-You Li Wen-Qiang hu Wen-Yu Song Shui-Wang He Hong-Jiao Wang zhe-Chang hu Meng-Cheng Li Kenneth Otieno Onditi Zhong-zheng Chen Chang-zhe Pu Yun Xiong Cai-Hong Rao Fu-You Zhang Chang-Sheng Zuo Xue-Long Jiang State Key Laboratory of Genetic Resources and Evolution&Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong Mountain Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Gaoligong Mountain Forest Ecosystem Observation and Research Station of Yunnan Province&Dulongjiang Forest Ecosystem Research Station KunmingYunnan 650223China University of Chinese Academy of Sciences Beijing 101408China Vector Laboratory Institute of Pathogens and VectorsYunnan Provincial Key Laboratory for Zoonosis Control and PreventionDali UniversityDaliYunnan 671000China School of Ecology and Environment Anhui Normal UniversityWuhuAnhui 241002China Gongshan Administrative Sub-Bureau of Gaoligongshan National Nature Reserve NujiangYunnan 673500China Fugong Administrative Sub-Bureau of Gaoligongshan National Nature Reserve NujiangYunnan 673400China Baoshan Administrative Bureau of Gaoligongshan National Nature Reserve BaoshanYunnan 678000China Administrative Bureau of Tongbiguan Provincial Nature Reserve DehongYunnan 679300China

Gaoligong Mountain(hereafter,GLGM)is located at the intersection of Myanmar and China’s Yunnan Province and Xizang Zizhiqu,and spans three globally significant biodiversity hotspots:the Himalayas,Indo-Burma,and the Mountains of Southwest *** surveys of mammals in this ecologically important region have a long history,there is no comprehensive systematic checklist and distribution account of the mammals of ***,we compiled a mammal species checklist of GLGM based on thorough field investigations and literature *** also examined specimen collections and applied camera trapping surveys to explore the region’s mammal diversity and distribution *** recorded 212 mammal species in nine orders,33 families,and 119 genera,which accounts for 30.5%of China’s mammal species,and a high proportion of nationally protected(50)and globally threatened(29)*** species richness showed a symmetrical unimodal curve along the elevation gradient,peaking at intermediate elevations(2000 to 2500 m above sea level(asl)),and increasing generally from south to north,slightly higher in the east slope than in the *** analysis and non-metric multidimensional scaling revealed three distinct elevational assemblages(3500 m asl)and significant south-to-north variation,but no substantial differences between the east and west *** GLGM present a unique conservation value due to the high proportions of rare and endangered mammal species,complex faunal composition,high endemism,and being the distribution boundary for many *** study is an important phased account of mammal diversity in GLGM and makes a prospect for future research.

关键词： Biodiversity hotspot Eastern Himalaya Gaoligong Mountain Endemism Mammal conservation Hengduan Mountains

生态文明先行示范区建设对生态环境质量的影响效应及作用机制研究

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北京交通大学学报（社会科学版） 2024年第1期23卷 138-154页

作者：兰秀娟胡哲能云南大学工商管理与旅游管理学院云南昆明650500 云南大学经济学院云南昆明650500

如何在保持经济持续增长的同时提高生态环境质量是当下我国迫切需要解决的现实问题。本文基于我国2009-2021年284个地级市的面板数据,将生态文明先行示范区建设视为一项准自然实验,运用DID(Differences-in-Differences)方法探究了生态... 详细信息

如何在保持经济持续增长的同时提高生态环境质量是当下我国迫切需要解决的现实问题。本文基于我国2009-2021年284个地级市的面板数据,将生态文明先行示范区建设视为一项准自然实验,运用DID(Differences-in-Differences)方法探究了生态文明示范区建设对生态环境质量的影响效应及作用机制。研究发现,生态文明先行示范区建设对生态环境质量的提升具有显著的正向效应,其影响效应随着时间的推移呈现出先上升后小幅下降的特征,且在西部地区、资源型城市以及工业发展水平高的城市影响更为显著。进一步分析发现,生态文明先行示范区建设可以通过提升政府环境治理水平、促进工业企业绿色转型、提高公众环境关注度三个渠道提升生态环境质量。因此,应加快推广生态文明先行示范区建设经验,因地制宜实施差异化的生态文明建设,积极探索生态文明建设的多维路径,进一步提升全社会生态环境质量。

关键词：生态文明先行示范区生态环境质量政府环境治理工业企业绿色转型公众环境关注度

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