检索结果-南通市图书馆

Journal of Contemporary Educational Research 2024年第3期8卷 69-72页

作者： Cheng Cheng Yancheng Tinghu junior Middle school Yancheng 224001Jiangsu ProvinceChina

The integration of the history of mathematics into junior middle school mathematics education represents a significant focus of international research in mathematics and *** mathematics curriculum standards for compulsory education have emphasized the importance of incorporating the history of mathematics,aiming to gradually integrate it into the mathematics ***,in the practical implementation of junior middle school mathematics education,the effective combination of the history of mathematics with teaching methodologies remains largely *** article explores the integration of junior middle school mathematics education and the history of mathematics,aiming to provide classroom teaching recommendations for teachers and promote the formation of students’mathematical literacy.

关键词： History of mathematics junior middle school mathematics education Teaching methodologies

Cooperative UAV search strategy based on DMPC-AACO algorithm in restricted communication scenarios

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第1期31卷 295-311页

作者： Shiyuan Chai Zhen Yang Jichuan Huang Xiaoyang Li yiyang Zhao Deyun Zhou school of Electronics and Information Northwestern Polytechnical UniversityXi'an 710072China school of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China The 93147th Unit of Chinese PLA Air Force Chengdu610091China

Improvement of integrated battlefield situational awareness in complex environments involving dynamic factors such as restricted communications and electromagnetic interference(EMI)has become a contentious research *** certain mission environments,due to the impact of many interference sources on real-time communication or mission requirements such as the need to implement communication regulations,the mission stages are represented as a dynamic combination of several communication-available and communication-unavailable ***,the data interaction between unmanned aerial vehicles(UAVs)can only be performed in specific communication-available *** cooperative search algorithms cannot handle such situations *** solve this problem,this study constructed a distributed model predictive control(DMPC)architecture for a collaborative control of UAVs and used the Voronoi diagram generation method to re-plan the search areas of all UAVs in real time to avoid repetition of search areas and UAV collisions while improving the search efficiency and safety *** attention mechanism ant-colony optimization(AACO)algorithm is proposed for UAV search-control decision *** search strategy is adaptively updated by introducing an attention mechanism for regular instruction information,a priori information,and emergent information of the mission to satisfy different search expectations to the maximum *** results show that the proposed algorithm achieves better search performance than traditional algorithms in restricted communication constraint scenarios.

关键词： Unmanned aerial vehicles(UAV) Cooperative search Restricted communication Mission planning DMPC-AACO

Shenqi Fuzheng injection alleviates chemotherapy-induced cachexia by restoring glucocorticoid signaling in hypothalamus

在线全文

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2024年第3期14卷 431-434页

作者： Entezar Berik Zijia Zhang Wei Li Yawen Liu Sihan Chen Wenyong Wu Zhaojun Wang Xinqin Kong Wenqiang Pei Huiqing Dong Huali Long Min Lei Jennifer yiyang Wang Liangfeng Liu Jinjun Hou Jing Feng Zhaoxia Li Wanying Wu De-an Guo Beijing Key Lab of TCM Collateral Disease Theory Research School of Traditional Chinese MedicineCapital Medical UniversityBeijing100069China National Engineering Research Center of TCM Standardization Technology Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai201203China University of Chinese Academy of Sciences Beijing100049China school of Chinese Materia Medica Nanjing University of Chinese MedicineNanjing210029China Limin Pharmaceutical Factory Livzon Group LimitedShaoguanGuangdong512028China Guangdong Corporate Key Laboratory of high-End Liquid Medicine R&D IndustrilizationShaoguanGuangdong512028China Center for Neurological and Psychiatric Research and Drug Discovery Shanghai Institute of Materia MedicaChinese Academy of ScienceShanghai201203China

Chemotherapy-induced cachexia(CIC)is a debilitating condition characterized by weight loss,muscle atrophy,and anorexia[1].While peripheral mechanisms of cachexia have been extensively studied,the involvement of the central nervous system(CNS)in CIC is often *** drugs cause stress responses and inflammation,which may impact the hypothalamus and disrupt systemic energy and neuroendocrine *** hypothalamic roles in regulating these processes can provide insights into CIC's mechanisms and aid in developing novel therapies.

关键词： injection drugs glucocorticoid chemotherapy

THE GLOBAL COMBINED QUASI-NEUTRAL AND ZERO-ELECTRON-MASS LIMIT OF NON-ISENTROPIC EULER-POISSON SYSTEMS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2022年第4期42卷 1666-1680页

作者：杨永富琚强昌周爽 College of Science Hohai UniversityNanjing 211100China Institute of Applied Physics and Computational Mathematics Beijing 100088 China Chengxi junior high school Suzhou215128 China

We consider a non-isentropic Euler-Poisson system with two small parameters arising in the modeling of unmagnetized plasmas and *** the basis of the energy estimates and the compactness theorem,the uniform global existence of the solutions and the combined quasi-neutral and zero-electron-mass limit of the system are proved when the initial data are close to the constant equilibrium *** particular,the limit is rigorously justified as the two parameters tend to zero independently.

关键词： Non-isentropic Euler-Poisson system global smooth solutions uniform energy estimates global convergence compactness

Parental Psychological Control and Internet Gaming Disorder Tendency:A Moderated Mediation Model of Core Self-Evaluation and Intentional Self-Regulation

在线全文

学校读者我要写书评

暂无评论

International Journal of Mental Health Promotion 2024年第7期26卷 547-558页

作者： Zhiqiao Ji Shuhua Wei Hejuan Ding school of Education and Psychology University of JinanJinan250022China school of Machinery and Automation Weifang UniversityWeifang261000China

Internet gaming disorder(IGD)among junior high school students is an increasingly prominent mental health *** is important to look for influences behind internet gaming disorder tendency(IGDT)in the junior high school student *** present study aimed to reveal the explanatory mechanisms underlying the association between parental psychological control(PPC)and internet gaming disorder tendency among junior high school students by testing the mediating role of core self-evaluation(CSE)and the moderating role of intentional self-regulation(ISR).Participants in present study were 735 Chinese junior high school students who completed offline self-report questionnaires on parental psychological control,core self-evaluation,intentional self-regulation,and Internet gaming disorder *** were conducted via mediation and moderated *** results showed that:(1)Parental psychological control was positively related to junior high school students’Internet gaming disorder *** self-evaluation,and intentional self-regulation were negatively related to junior high school students’Internet gaming disorder tendency,respectively.(2)Core self-evaluation partially mediated the relationship between parental psychological control and junior high school students’Internet gaming disorder tendency.(3)Intentional self-regulation moderated the association between parental psychological control and Internet gaming disorder tendency,as well as the relationships between parental psychological control and core self-evaluation and core self-evaluation and Internet gaming disorder tendency in the mediated *** on these findings,we believe that there is a need to weaken parental psychological control,strengthen junior high school students’core self-evaluation and intentional self-regulation,and to recognize the important role of parents as well as their children’s personal positive traits in the healthy development of junior high school students.

关键词： Internet gaming disorder tendency parental psychological control core self-evaluation intentional self-regulation moderated mediation model junior high school students

Mo@PANI-catalyzed oxidative deoximation reaction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第2期35卷 407-410页

作者： yiyang Zhang Wen Li Zuofeng Hu Xiaobi Jing Lei Yu school of Mechanical Engineering Yangzhou UniversityYangzhou 225127China school of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Yangzhou Yangzi Auto Interior & Exterior Co. Ltd.Yangzhou 225119China

Deoximation is an important transformation in synthetic *** can be employed in protection,characterization and purification of the carbonyls,and in the synthesis of ketones from non-carbonyl *** the field,oxidative deoximation reaction can utilize the driving force caused by the oxidation process so that the reaction can occur under relatively mild ***,we designed and prepared polyaniline-supported molybdenum(Mo@PANI)just by immersing PANI into the EtOH/H_(2)O solution of MoCl_(5).The material was successfully applied as the efficient catalyst for oxidative deoximation reactions,which were performed in ethanol using H_(2)O_(2)as the clean *** substrate scope of the reaction was *** could be applied on heterocycle-containing substrates,making this protocol preferable for pharmaceutical intermediate *** Mo is a necessary trace element for both animals and plants,this method is environment-friendly and is suitable for large-scale *** work as the first example of Mo-catalyzed oxidative deoximation reaction may inspire novel ideas for both catalyst design and synthetic process development.

关键词： Molybdenum Polyaniline Oxidation Deoximation Carbonyl

The acceptance of traditional Chinese medicine among patients with Parkinson's disease:A hospital survey

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Medicine 2024年第2期22卷 180-187页

作者： Peng Wang Jing Hong Zhu-qian Tang Bi-zhen Gong Xiao-rong Qi Han Jiang Bo Pan Qi Chen Postgraduate school Medical School of Chinese People’s Liberation ArmyBeijing 100853China Senior Department of Traditional Chinese Medicine the Sixth Medical Center of PLA General HospitalBeijing 100853China Department of Integration of Chinese and Western Medicine School of Basic Medical SciencesPeking UniversityBeijing 100191China Department of Integrative Oncology the First Affiliated Hospital of Naval Medical UniversityShanghai 200433China school of Traditional Chinese Medicine Naval Medical UniversityShanghai 200433China school of Pharmacy Nanjing University of Chinese MedicineNanjing 210023Jiangsu ProvinceChina Department of Dermatology the First Clinical Medical CollegeAnhui University of Chinese MedicineHefei 230012Anhui ProvinceChina

Objective:The efficacy of medications for Parkinson’s disease(PD)tend to decline over time,which has a serious impact on patients’health and quality of *** some extent,traditional Chinese medicine(TCM)can resolve the distressing problem of ineffective dopaminergic medication in PD *** purpose of this study was to investigate the attitude,acceptance,and independent predictors of TCM in PD patients admitted to the outpatient department of a tertiary ***:A cross-sectional study of PD patients was conducted in the outpatient department of a large tertiary hospital in Beijing from March 2022 to June 2023.A self-report questionnaire was developed to investigate PD patients’attitudes and acceptance of TCM based on the *** logistic regression analyses were also performed to further clarify the independent predictors influencing patients’adoption of TCM ***:A total of 397 patients completed the questionnaire,of which 78.09%were willing to be treated with TCM and 21.91%indicated that they were not willing to use *** logistic regression analysis showed that several parameters were correlated with a patient’s willingness to include TCM in their therapeutic *** included education level of a bachelor’s degree(odds ratio[OR)=8.554;95%confidence interval[CI]:4.112–17.794;Pjunior high school education),living in an urban setting(OR=8.022;95%CI:4.577–14.060;P3.078–8.537;P3.083;95%CI:1.852–5.134;P3.530;95%CI:1.446–8.616;P=0.006,vs not thought),believing that TCM therapy is effective(OR=3.859;95%CI:1.482–10.047;P=0.006,vs not understood),and being willing to discuss ongoing TCM therapy with an attending physician(OR=62.468;95%CI:30.350–128.574;P<0.001,vs not informed).Conclusion:This study initially investigated the acceptance

关键词： Parkinson's disease Traditional Chinese medicine Cross-sectional study

Atherosclerotic plaque classification in carotid ultrasound images using machine learning and explainable deep learning

在线全文

学校读者我要写书评

暂无评论

Intelligent Medicine 2024年第2期4卷 83-95页

作者： Soni Singh Pankaj K.Jain Neeraj Sharma Mausumi Pohit Sudipta Roy school of Vocational Studies and Applied Sciences Gautam Buddha UniversityGreater NoidaUttar PradeshIndia Artificial Intelligence and Data Science Jio Institute Navi MumbaiMaharashtraIndia school of Biomedical Engineering Indian Institute of TechnologyVaranasiUttar PradeshIndia

Objective The incidence of cardiovascular diseases(CVD)is rising rapidly *** forms of CVD,such as stroke and heart attack,are more common among patients with certain *** development is a major factor underlying cardiovascular events,such as heart attack and stroke,and its early detection may prevent such *** imaging of carotid arteries is a useful method for diagnosis of atherosclerotic plaques;however,an automated method to classify atherosclerotic plaques for evaluation of early-stage CVD is ***,we propose an automated method for classification of high-risk atherosclerotic plaque ultrasound *** Five deep learning(DL)models(VGG16,ResNet-50,GoogLeNet,XceptionNet,and SqueezeNet)were used for automated classification and the results compared with those of a machine learning(ML)-based technique,involving extraction of 23 texture features from ultrasound images and classification using a Support Vector Machine *** enhance model interpretability,output gradient-weighted convolutional activation maps(GradCAMs)were generated and overlayed on original *** A series of indices,including accuracy,sensitivity,specificity,F1-score,Cohen-kappa index,and area under the curve values,were calculated to evaluate model *** output images allowed visualization of the most significant ultrasound image *** GoogLeNet model yielded the highest accuracy(98.20%).Conclusion ML models may be also suitable for applications requiring low computational ***,DL models could be more completely automated than ML models.

关键词： Explainable deep learning Carotid artery Classification VGG 16 ResNet-50 GoogLeNet XceptionNet SqueezeNet

Causal temporal graph attention network for fault diagnosis of chemical processes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2024年第6期70卷 20-32页

作者： Jiaojiao Luo Zhehao Jin Heping Jin Qian Li Xu Ji yiyang Dai school of Chemical Engineering Sichuan UniversityChengdu 610065China China Three Gorges Corporation Beijing 100038China

Fault detection and diagnosis(FDD)plays a significant role in ensuring the safety and stability of chemical *** the development of artificial intelligence(AI)and big data technologies,data-driven approaches with excellent performance are widely used for FDD in chemical ***,improved predictive accuracy has often been achieved through increased model complexity,which turns models into black-box methods and causes uncertainty regarding their *** this study,a causal temporal graph attention network(CTGAN)is proposed for fault diagnosis of chemical processes.A chemical causal graph is built by causal inference to represent the propagation path of *** attention mechanism and chemical causal graph were combined to help us notice the key variables relating to fault *** in the Tennessee Eastman(TE)process and the green ammonia(GA)process showed that CTGAN achieved high performance and good explainability.

关键词： Chemical processes Safety Fault diagnosis Causal discovery Attention mechanism Explainability

A calibration and compensation method for an industrial robot with high accuracy harmonic reducers

在线全文

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2024年第3期67卷 725-739页

作者： ZHAO yiyang LIU Xun CAO JiaBin LIU JinYu XU Yan YAN WeiXin school of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China College of Computer and Control Engineering Northeast Forestry UniversityHarbin 150040China

Industrial serial robots need high stiffness to keep absolute pose accuracy and meet the requirements in practical applications. However, the weak stiffness feature of robot joints and the payloads affected on robot end-effector, which will also increase the pose error of robot. Especially, the existing calibration methods often consider under no-payload condition without discussing the payload state. In this paper, we report a new industrial serial robot composed by a new harmonic reducer: Model-Y, based on high accuracy and high stiffness, and a kinematic parameter calibration algorithm which is based on a harmonic reducer forcedeformation model. To decrease the accuracy effects of payload, an iterative calibration method for kinematic parameters with payload situation was proposed. Simulation and experiments are conducted to verify the effectiveness of the proposed calibration method using the self-developed industrial serial robot. The results show a remarkably improved accuracy in absolute position and orientation with the robot's payload range. The position mean error has 70% decreased to 0.1 mm and the orientation mean error diminished to less than 0.01° after calibration with compensation. Additionally, online linear and circular tests are carried out to evaluate the position error of the robot during large-scale spatial and low-speed continuous movement. The accuracy is consistent with the previous calibration results, indicating the effectiveness and advantages of the proposed strategy in this article.

关键词： industrial serial robot Model-Y harmonic calibration stiffness model online compensation

同方期刊数据库