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基于卷积注意力长短时记忆网络的轴承寿命预测方法

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控制理论与应用 2023年第6期40卷 1140-1148页

作者：周建民高森李家辉熊文豪王云庆华东交通大学载运工具与装备教育部重点实验室江西南昌330013 轨道交通基础设施性能监测与保障国家重点实验室江西南昌330013

传统的滚动轴承寿命预测方法缺乏明确的学习机制,无法有效识别不同时序特征之间的差异并突出重要特征,影响其预测精度.为克服上述缺点,本文提出了一种基于卷积注意力长短时记忆网络(CAN-LSTM)的剩余使用寿命预测模型.该模型主要由两部... 详细信息

传统的滚动轴承寿命预测方法缺乏明确的学习机制,无法有效识别不同时序特征之间的差异并突出重要特征,影响其预测精度.为克服上述缺点,本文提出了一种基于卷积注意力长短时记忆网络(CAN-LSTM)的剩余使用寿命预测模型.该模型主要由两部分组成:前端为卷积注意力网络(CAN),学习通道和时间维度中的深层故障特征,提高特征的表征能力;后端为改进LSTM网络,基于退化特征对轴承进行寿命预测.归一化健康指标至[0,1]区间内,得到相同的失效阈值;使用五点平滑法对预测结果进行处理,实现预测结果的输出;利用留一法对轴承全寿命试验数据进行验证,测试模型的准确性和适应性.试验结果表明:所提模型的平均均方根误差和平均绝对值误差比仅用CNN模型预测值低54.12%和59.05%,比仅用LSTM模型预测值低39.06%和43.42%,比卷积长短时记忆网络(CNN-LSTM)低20.41%和25.86%.

关键词：卷积注意力网络长短时记忆网络轴承剩余使用寿命预测

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Enhanced Beta2-band Oscillations Denote Auditory Hallucination in Schizophrenia Patients and a Monkey Model of Psychosis

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Neuroscience Bulletin 2024年第3期40卷 325-338页

作者： Shuo Ma Tianzhen Chen Wenjun Jia Jie Liu Shihan Ding Puzhe Li Hong Gan Dapeng Zhang Shuxin Shao Mu-ming Poo min Zhao Bomin Sun jian jiang Department of Neurosurgery Ruijin HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200020China Shanghai Mental Health Center Shanghai Jiao Tong University School of MedicineShanghai200030China Shanghai Center for Brain Science and Brain-inspired Technology Lingang LaboratoryShanghai201602China University of California at Berkeley BerkeleyCA94720USA School of Life Science and Technology ShanghaiTech UniversityShanghai201210China Institute of Neuroscience CAS Center for Excellence in Brain Science and Intelligence TechnologyCAS Key Laboratory of Primate NeurobiologyState Key Laboratory of NeuroscienceChinese Academy of SciencesShanghai200031China Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology Lingang LaboratoryShanghai201210China Fuyang Third People’s Hospital Fuyang Mental Health CenterFuyang236052China Shanghai Key Laboratory of Psychotic Disorders Shanghai200030China Institute of Psychological and Behavioral Science Shanghai Jiao Tong UniversityShanghai200030China Shanghai Quanlan Technology Co. LtdShanghai201602China

An electroencephalographic(EEG)signature of auditory hallucinations(AHs)is important for facilitating the diagnosis and treatment of AHs in *** recorded EEG from 25 schizophrenia patients with recurrent *** the period of AHs,EEG recordings exhibited significantly elevated beta2-band power in the temporal region,as compared to those recorded in the absence of AHs or during stimulation with verbal *** further generated methamphetamine-treated rhesus monkeys exhibiting psychosis-like behaviors,including repetitive sudden searching actions in the absence of external intrusion,suggesting the occurrence of *** EEG beta2-band power in the temporal region of these monkeys was enhanced immediately after methamphetamine treatment and positively correlated with the frequency of sudden searching ***,the enhancement of temporal beta2-band oscillations represents a signature for AHs in both patients and a monkey model of psychosis,and this monkey model can be used for developing closed-loop neuromodulation approaches for the treatment of refractory AHs in schizophrenia.

关键词： Schizophrenia Auditory hallucinations Non-human primate Methamphetamine Electroencephalography

Analysis on Rural Ecological Environment and Circular Economy Development Mode of China

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Analysis on Rural Ecological Environment and Circular Econom...

A Preliminary Study on Natural Matrix Materials for Controlled Release Nitrogen Fertilizers

2010公共管理国际会议（第六届）

作者： SU jian-lan LIN Shi-wen zhou jian-min School of Economic and Management Southwest Forestry University English Department Southwest Forestry University Chinese Section of the Seventh Middle School of Guilin

This paper was based on situation and causes of ecological environment in the construction of new socialist countryside in China, expatiated two necessities of introducing circular economy development mode of eco-agriculture and forestry, discussed specific characteristics, existing foundation and current resistance of the circular economy of eco-agriculture and forestry, and studied major principles and support system for constructing the circular economy mode of eco-agriculture and forestry. Lastly presented some countermeasures, including the improved government function and regulatory mechanism, marketing organization, farmer professional cooperative organization, leading enterprise, circular economic market system of eco-agriculture and forestry, and human resources.

关键词： Ecological environment Circular economy Development mode China

来源： cnki会议评论

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Pedosphere 2004年第1期14卷 45-52页

作者： DUChang-Wen zhoujian-min WANGHuo-Yan LIShou-Tian DepartmentofSoilScienceandPlantNutrition InstituteofSoilScienceChineseAcademyofSciencesNanjing210008（China）

A controlled release N fertilizer was developed by the carrier method using natural polysaccharides (PS)and urea. The results showed that mixing of PS and urea led to significant control of urea release. When a cross-linker (boric acid or glutaraldehyde) was added, a better control effect was observed. During a 30 min leaching time the nitrogen release rate from the controlled release fertilizer was nearly constant, which was significantly different from normal urea. One of the controlled release mechanisms was related to space resistance from a large molecular structure. Infrared (IR) analysis indicated that interaction of PS with urea was through a hydrogen bond or a covalent bond. These bonds created an α-helix or high molecular network fertilizer carrier system, which was another reason for a controlled nutrient release. Pot experiment showed that nitrogen use efficiency could increase significantly with a carrier fertilizer.

关键词：磷肥多聚糖尿素分子结构红外线分析

Hollow Multishelled Structure: Synthesis Chemistry and Application

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Chemical Research in Chinese Universities 2024年第3期40卷 346-393页

作者： MAO Dan WANG Chao LI Wei zhou Liang LIU jian ZHENG Zjian ZHAO Yong CAO An-min WANG Shutao HUANG Jiaxing HUO Fengwei CHEN Hongyu MAI Liqiang YU Ranbo WANG Lianzhou LU Yunfeng YU Chengzhong YANG Qihua YANG Zhenzhong ZENG Hua Chun ZHAO Hujun TANG Zhiyong ZHAO Dongyuan WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChineseAcademy of SciencesBeijing 100190P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBejing 100190P.R.China School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong SARP.R.China Department of Chemistry Fudan UniversityShanghai 200433P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023P.R.China School of Chemistry Beihang UniversityBejing 100191P.R.China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China CAS Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190P.R.China School of Engineering Westlake UniversityHangzhou 310024P.R.China School of Flexible Electronics(Future Technologies) Nanjing Tech UniversityNanjing 211816P.R.China School of Science Westlake UniversityHangzhou 310024P.R.China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070P.R.China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083P.R.China School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia College of Life Science and Technology Bejing University of Chemical TechnologyBejing 100029P.R.China School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200241P.R.China College of Life Sciences Zhejiang Normal UniversityJinhua 321004P.R.China Department of Chemical Engineering Tsinghua UniversityBeijing 100

Hollow multishelled structure(HoMS),a promising and complex multifunctional structural system,features at least two shells that are separated by internal *** unique structure endows it with numerous advantages including low density,high loading capacity,large specific surface area,facilitated mass transport,and multiple spatial confinement *** the past twenty years,benefiting from the booming development of synthesis methods,various HoMS materials have been prepared and show promising applications in diverse areas.

关键词： Hollow multishelled structure Synthesis chemistry Energy storage Catalysis Electromagnetic wave absorption Drug delivery Sensor

Epidemiological Surveillance: Genetic Diversity of Rotavirus Group A in the Pearl River Delta, Guangdong, China in 2019

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Biomedical and Environmental Sciences 2024年第3期37卷 278-293页

作者： jianG Jie Ying LIANG Dan WANG Li XIAO Yun LIANG Yu Feng KE Bi Xia SU Juan XIAO Hong WANG Tao ZOU min LI Hong jian KE Chang Wen School of Public Health Shantou UniversityShantou 515063GuangdongChina Guangdong Provincial Center for Disease Control and Prevention Guangdong Workstation for Emerging Infectious Disease Control and PreventionGuangzhou 511430GuangdongChina Guangdong Provincial Key Laboratory of Virology Institute of Medical MicrobiologyJinan UniversityGuangzhou 510632GuangdongChina School of Public Health Sun Yat-sen UniversityGuangzhou 510275GuangdongChina School of Public Health Southern Medical UniversityGuangzhou 510515GuangdongChina Shantou University Medical College Shantou 515041GuangdongChina

Objective This study aimed to understand the epidemic status and phylogenetic relationships of rotavirus group A(RVA)in the Pearl River Delta region of Guangdong Province,*** This study included individuals aged 28 days–85 years.A total of 706 stool samples from patients with acute gastroenteritis collected between January 2019 and January 2020 were analyzed for 17 causative pathogens,including RVA,using a Gastrointestinal Pathogen Panel,followed by genotyping,virus isolation,and complete sequencing to assess the genetic diversity of *** The overall RVA infection rate was 14.59%(103/706),with an irregular epidemiological *** proportion of co-infection with RVA and other pathogens was 39.81%(41/103).Acute gastroenteritis is highly prevalent in young children aged 0–1 year,and RVA is the key pathogen circulating in patients 6–10 months of age with diarrhea.G9P[8](58.25%,60/103)was found to be the predominant genotype in the RVA strains,and the 41 RVA-positive strains that were successfully sequenced belonged to three different RVA genotypes in the phylogenetic *** analysis showed that gene reassortment events,selection pressure,codon usage bias,gene polymorphism,and post-translational modifications(PTMs)occurred in the G9P[8]and G3P[8]*** This study provides molecular evidence of RVA prevalence in the Pearl River Delta region of China,further enriching the existing information on its genetics and evolutionary characteristics and suggesting the emergence of genetic *** the surveillance of genotypic changes and gene reassortment in RVA strains is essential for further research and a better understanding of strain variations for further vaccine development.

关键词： Infectious diarrheal disease Rotavirus Phylogenetic analysis Gene rearrangement Codon usage bias Genetic diversity

Concerns Arise:Wheat Allergy Risk in Pre-packaged Food Products from China

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Food Science and Human Wellness 2024年

作者： Wenfeng Liu jian Wang Zhongliang Wang Fangfang min Yong Wu Juanli Yuan Jinyan Gao Hongbing Chen State Key Laboratory of Food Science and Resources Nanchang University School of Food Science and Technology Nanchang University Sino-German Joint Research Institute Nanchang University jiangxi Province Key Laboratory of Food Allergy Nanchang University School of Pharmaceutical Sciences Nanchang University

Understanding and monitoring the cross-contamination of food allergens is crucial for safeguarding public health and ensuring food safety. Food allergen risk assessment， derived from classical toxicological principles， can identify and quantify the risk of allergies. This study aimed to investigate the risk of wheat allergic reactions to prepackaged foods from China through the utilization of food allergen risk assessment. A total of 575 products have been surveyed， wheat/gluten， milk and egg were major allergens labelled on products. According to voluntary incidental trace allergen labelling 3.0 (VITAL? 3.0) program， the number of products belonged to Action Level 2 were 303. Integration of PAL analysis indicated that 9.57% products would pose a potential risk to wheat allergic individuals. The probabilistic risk assessment results suggest that 7984 allergic reactions may arise among wheat-allergic consumers during 10，000 eating occasions due to the consumption of pre-packaged food products with incorrect wheat-related allergen labelling. This study demonstrated that a risk assessment-based approach can support the guidance of allergen labelling and management of food allergen for pre-packaged food products， providing protection for allergic individuals in food consumption and for food manufacturers in food production and trade.

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第六届三维打印与口腔医学学术大会暨《中华口腔医学杂志》创刊70周年学术论坛纪要

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中华口腔医学杂志 2024年第2期59卷 204-206页

作者：周建孔繁军胡敏王松灵首都医科大学口腔医学院特诊特需科北京100050 中华医学会杂志社《中华口腔医学杂志》编辑部北京100052 解放军总医院口腔颌面外科北京100853 首都医科大学口腔健康北京实验室北京100069 南方科技大学医学院稳态医学实验室深圳518055

2023年12月1至3日,由《中华医学杂志》社有限责任公司与《中华口腔医学杂志》编委会主办,山东大学口腔医学院(口腔医院)山东省口腔医院承办,口腔健康北京实验室协办的“第六届三维打印与口腔医学学术大会暨《中华口腔医学杂志》创刊70... 详细信息

2023年12月1至3日,由《中华医学杂志》社有限责任公司与《中华口腔医学杂志》编委会主办,山东大学口腔医学院(口腔医院)山东省口腔医院承办,口腔健康北京实验室协办的“第六届三维打印与口腔医学学术大会暨《中华口腔医学杂志》创刊70周年学术论坛”在山东省济南市成功举办。来自全国各地的300余位代表参加了此次盛会。

关键词：口腔医学口腔医院三维打印口腔健康学术论坛《中华医学杂志》山东省济南市学术大会

新时代推进高等教育高质量发展的法治化路径探析

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湘潭大学学报（哲学社会科学版） 2024年第1期48卷 46-50,80页

作者：周敏凯时晓建同济大学政治与国际关系学院上海200092

党的二十大报告提出,高质量发展是新时代改革发展的新目标,也是中国教育现代化建设的新方向。要实现高等教育高质量发展,必须坚持党的全面领导,加强高等教育法治化建设,着重厘清政府、高校、社会三大主体的权责和相互权责关系,实现高教... 详细信息

党的二十大报告提出,高质量发展是新时代改革发展的新目标,也是中国教育现代化建设的新方向。要实现高等教育高质量发展,必须坚持党的全面领导,加强高等教育法治化建设,着重厘清政府、高校、社会三大主体的权责和相互权责关系,实现高教治理主体的多元形态、系统完备的法律制度体系、有效合理的协同治理结构,落实依法治教方针。推进高等教育法治化进程,需要正视面临的新问题,深化高等教育体制改革,最大程度激发高校自主办学的主动性与创新性,为实现高等教育高质量发展提供理想环境条件。

关键词：高等教育法治化新时代高质量发展