检索结果-南通市图书馆

A methodology for laser tool setters calibration and its precise mathematical model

Chinese Journal of Aeronautics 2024年第7期37卷 564-581页

作者： Tao FANG zixi FANG Ze Zhong CHEN Zhiyong CHANG School of Mechanical Engineering Northwestern Polytechnical UniversityXi’an 710072China Gina Cody School of Engineering and Computer Science Concordia UniversityMontrealQuebec H3G 1M8Canada Changsha Optimum CNC Corporation Changsha 410221China Institute for Aero-engine Smart Assembly of Shaanxi Province Xi’an 710072China

On-machine tool setting is a pivotal approach in achieving intelligent manufacturing,and laser tool setters have become a crucial component of smart machine *** tool setters play a crucial role in precisely measuring the dimensions of cutting tools during the part machining process,focusing on tool length and *** a measuring instrument,the positions of the laser axis of the laser tool setter need to be accurately calibrated before ***,in actual calibration scenarios,traditional calibration methods face challenges due to installation errors in the tool setter and geometric errors in the measuring *** address this issue,this study proposes a novel calibration ***,the calibration mechanism of the laser beam axis is *** on the accurate mathematical model of the laser beam and the measuring rod,and using the polygon clipping algorithm,the mathematical mechanism of the laser tool setter’s work is ***,a novel method is introduced to calculate the compensation distance between the laser beam reference point and the rod bottom center point at each moment during ***,by utilizing the kinematic chain of the tool setter calibration system,a new calibration method is developed to accurately calibrate the position of the laser beam axis in the machine tool coordinate ***,the accuracy of the calibration method is verified through simulation experiments and calibration *** method improves the calibration accuracy of the tool setter,and the mathematical model of the laser tool setter can be extended to the measurement of tools,thereby improving the precision of tool *** research significantly improves the efficient production performance of smart machine tools.

关键词： On-machine tool setting Smart machine tools Mathematical model Calibration method Laser tool sette

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Controlling molecular assembly on time scale:Time-dependent multicolor fluorescence for information encryption

引用

Chinese Chemical Letters 2024年第7期35卷 336-340页

作者： zixi Zou Jingyuan Wang Yian Sun Qian Wang Da-Hui Qu Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China

Dynamic assembly on time scale is common in biological systems but rare for artificial materials,especially for smart luminescent *** molecular assembly in a spatio-temporal manner and resulting in white-light-including multicolor fluorescence with time-dynamic features remains ***,controlling molecular assembly on time scale is achieved by integrating a pH-responsive motif to a transient alkaline solution which is fabricated by activators(NaOH)and deactivators(esters),leading to automatic assembly on time scale and time-dependent multicolor fluorescence changing from blue to white and *** kinetics of the assembly process is dependent on the ester hydrolysis process,which can be controlled by varying ester concentrations,temperature,initial pH,stirring rate and ester *** dynamic fluorescent system can be further developed for intelligent fluorescent materials such as fluorescent ink,three-dimension(3D)codes and even four-dimension(4D)codes,exhibiting a promising potential for information encryption.

关键词： Supramolecular chemistry Multicolor fluorescence White light emission Time-dependent fluorescence Information encryption

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An improved transfer learning strategy for short-term cross-building energy prediction usingdata incremental

引用

Building Simulation 2024年第1期17卷 165-183页

作者： Guannan Li Yubei Wu Chengchu Yan Xi Fang Tao Li Jiajia Gao Chengliang Xu zixi Wang School of Urban Construction Wuhan University of Science and TechnologyWuhan 430065China Anhui Province Key Laboratory of Intelligent Building and Building Energy-saving Anhui Jianzhu UniversityHefei 230601China State Key Laboratory of Green Building in Western China Xi'an University of Architecture and TechnologyXi'an 710055China College of Urban Construction Nanjing Tech UniversityNo.200North Zhongshan RoadNanjing 210009China Key Laboratory of Low-grade Energy Utilization Technologies and Systems(Chongqing University) Ministry of Education of ChinaChongqing UniversityChongqing 400044China College of Civil Engineering Hunan UniversityChangsha 410082China Hubei Provincial Engineering Research Center of Urban Regeneration Wuhan University of Science and TechnologyWuhan 430065China

The available modelling data shortage issue makes it difficult to guarantee the performance of data-driven building energy prediction(BEP)models for both the newly built buildings and existing information-poor *** knowledge transfer learning(KTL)and data incremental learning(DIL)can address the data shortage issue of such *** new building scenarios with continuous data accumulation,the performance of BEP models has not been fully investigated considering the data accumulation ***,which can learn dynamic features from accumulated data adapting to the developing trend of new building time-series data and extend BEP model's knowledge,has been rarely *** studies have shown that the performance of KTL models trained with fixed data can be further improved in scenarios with dynamically changing ***,this study proposes an improved transfer learning cross-BEP strategy continuously updated using the coarse data incremental(CDI)*** hybrid KTL-DIL strategy(LSTM-DANN-CDI)uses domain adversarial neural network(DANN)for KLT and long short-term memory(LSTM)as the Baseline BEP *** evaluation is conducted to systematically qualify the effectiveness and applicability of KTL and improved ***-world data from six-type 36 buildings of six types are adopted to evaluate the performance of KTL and KTL-DIL in data-driven BEP tasks considering factors like the model increment time interval,the available target and source building data *** with LSTM,results indicate that KTL(LSTM-DANN)and the proposed KTL-DIL(LSTM-DANN-CDI)can significantly improve the BEP performance for new buildings with limited *** with the pure KTL strategy LSTM-DANN,the improved KTL-DIL strategy LSTM-DANN-CDI has better prediction performance with an average performance improvement ratio of 60%.

关键词： building energy prediction(BEP) cross-building data incremental learning(DIL) domain adversarial neural network(DANN) knowledge transfer learning(KTL)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bio-inspired surface manipulation of halloysite nanotubes for highperformance flame retardant polylactic acid nanocomposites

引用

Nano Research 2024年第3期17卷 1595-1606页

作者： Yaru Sun Bin Yu Yan Liu Junbo Yan zixi Xu Bo Cheng Fenglei Huang Jun Wang State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China National Engineering Research Center of Flame Retardant Materials Beijing Institute of TechnologyBeijing 100081China

High-performance flame-retardant polylactic acid(PLA)bio-composites based on biobased fillers to meet usage requirements represents a promising direction for creating a sustainable *** flame retardant PLA composites have been reported extensively,it still remains a huge challenge to develop mechanically *** flame retardant PLA composites due to plastication effect of organic flame retardants and poor compatibility of organic fillers with the matrix lead to the severe deterioration in mechanical *** this work,a bio-inspired surface manipulation strategy for halloysite nanotubes(HNTs)was proposed via a facile and green self-assembly *** structure and morphology of bio-inspired HNTs(b-HNTs)proved that biomass nanofillers(PA-NA-Fe)grew well both within the lumen and on the surface of *** growth of biomass on the inner and outer surfaces of HNTs was inspired from wooden towards enhancing the interface compatibility and imparting multi-properties to PLA *** mechanical properties(tensile,thermomechanical and anti-impact mechanical),great fire safety(heat release and smoke emission),thermostability and improved electromagnetic interference shielding effectiveness of this well-designed PLA nanocomposite were *** mechanisms of the enhanced performances of the PLA bio-composites by loading b-HNTs were *** work presents a facile and environmentally-friendly bio-inspired modification strategy for HNTs to fabricate high-performance,multi-functional polymer composites,which is also suitable for surface modification of many other nanomaterials,including nanofibers,nanotubes,nanowires,and nanosheets.

关键词： mechanical properties thermostability fire safety electromagnetic interference shielding biomass

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Beware of the serious harm of veterinary drug poisoning:a case report

引用

World Journal of Emergency Medicine 2024年第2期15卷 153-155页

作者： Ping Dai Jin Sun Tongyue Zhang Zhiqiang Zhou zixi Wen Tianzi Jian Aerbusili Genjiafu Baotian Kan Xiangdong Jian Department of Poisoning and Occupational Diseases Emergency MedicineQilu HospitalCheeloo College of MedicineShandong UniversityJinan 250012China Emergency Department Affiliated the Jianhu Clinical Medical College of Yangzhou UniversityYancheng 224700China Department of Occupational and Environmental Health School of Public HealthCheeloo College of MedicineShandong UniversityJinan 250012China School of Nursing and Rehabilitation Cheeloo College of MedicineShandong UniversityNursing Theory&Practice Innovation Research Center of Shandong UniversityJinan 250012China Department of Geriatric Medicine Qilu HospitalNursing Theory Innovation and Research Center of Shandong UniversityCheeloo College of MedicineShandong UniversityJinan 250012China

Veterinary drugs are substances(including pharmaceutical feed additives)used to prevent,treat,and diagnose diseases or regulate the physiological functions of *** drug poisoning in humans is relatively rare both in China and the rest of the ***,we report a case of death from veterinary drug poisoning from ***-closantel is a broad-spectrum antiparasitic drug,which has high efficacy against a variety of trematodes and nematodes.

关键词： drug drugs diseases

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Assembling ionic liquid into porous molecular filler of mixed matrix membrane to trigger high gas permeability,selectivity,and stability for CO_(2./CH_(4) separation

引用

Nano Research 2024年第5期17卷 4535-4543页

作者： Liting Yu Liqin Hao Yang Feng Jia Pang Mengwei Guo Liangjun Li Weidong Fan Lili Fan Rongming Wang zixi Kang Daofeng Sun School of Materials Science and Engineering State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(East China)Qingdao 266580China College of Chemistry Nankai UniversityTianjin 300071China College of Chemistry and Chemical Engineering China University of Petroleum(East China)Qingdao 266580China College of New Energy China University of Petroleum(East China)Qingdao 266580China

As an emerging zero-dimensional nano crystalline porous material,porous organic cages(POCs)with soluble properties in organic solvents,are promising candidates as molecular fillers in mixed matrix membranes(MMMs).The pore structure of POCs should be adjusted to trigger efficient gas separation performance,and the interaction between filler and matrix should be *** this work,ionic liquid(IL)was introduced into the molecular fillers of CC3,to construct the IL@CC3/PIM-1 membrane to effectively separate CO_(2. from CH_(4).The advantages of doping IL include:(1)narrowing the cavity size of POCs from 4.4 to 3.9Åto enhance the diffusion selectivity,(2.strengthening the CO_(2. solubility to heighten the gas permeability,and(3)improving the compatibility between filler and matrix to upgrade membrane *** the optimization of the membrane composite,the IL@CC3/PIM-1-10%membrane possesses the CO_(2. permeability of 7868 Barrer and the CO_(2./CH_(4) selectivity of 73.4,which compared to the CC3/PIM-1-10%membrane,improved by 15.9%and 106.2.,***,the membrane has maintained a stable separation performance at varied temperatures and pressures during the long-term *** proposed method offers an efficient way to improve the performance of POCs-based MMMs in gas separation.

关键词： porous organic cage mixed matrix membrane ionic liquid gas separation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

C—F Bond Insertion into Indoles with CHBr_(2.F:An Efficient Method to Synthesize Fluorinated Quinolines and Quinolones

引用

Chinese Journal of Chemistry 2024年第10期42卷 1128-1132页

作者： Chao Li Lei Chen Hongye Wang zixi Yan Bin Lyu Weiping Lyu Changwei Jiang Dehua Lu Jiaxing Li Ning Jiao Song Song State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityXue Yuan Rd.38Beijing 100191China

A mild and practical method for synthesizing fluorinated quinoline derivatives,which have a wide range of applications in pharmaceuticals,materials,and organic synthesis,was described through C—F bond insertion into indoles using CHBr_(2.*** simple conditions,readily availability of CHBr_(2.F,as well as the versatility of the transformations make this strategy very powerful in synthesizing 3-fluoroquinoline and *** mechanistic studies reveal that bromofluorocarbene generated in-situ under basic condition was the key intermediate.

关键词： Skeleton edit Fluorocarbene Ring expansion Quinoline Quinolone

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

马克思主义“共享”思想中国化的概念史考察

引用

云南师范大学学报（哲学社会科学版） 2024年第2期56卷 61-72页

作者：唐子茜电子科技大学马克思主义学院四川成都611731

作为新发展理念之一的“共享发展”理念,被提出后成为学术界研究的重要对象。为了从概念史视域考察马克思主义“共享”思想的中国化,文章对“共享”概念进行了历史溯源,厘清了马克思主义“共享”概念中国化的发生逻辑,分析了作为新时代... 详细信息

作为新发展理念之一的“共享发展”理念,被提出后成为学术界研究的重要对象。为了从概念史视域考察马克思主义“共享”思想的中国化,文章对“共享”概念进行了历史溯源,厘清了马克思主义“共享”概念中国化的发生逻辑,分析了作为新时代马克思主义“共享”概念中国化新样态的“共享发展”在话语重构及内涵拓展方面的演变。研究发现,马克思主义“共享”概念中国化是在“两个结合”中分阶段发生的,呈现出“三个统一”的递嬗理路。

关键词：马克思主义中国化共享概念史 “两个结合” 守正创新

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

体验性活动中培育态度责任素养的方法

引用

生物学教学 2024年第2期49卷 18-20页

作者：李子蹊江苏省常州市实验初级中学常州213001

态度责任是隐性的,许多教师在教学中容易忽略这一素养的培养。利用跨学科实践、设计和制作新产品、榜样和示范以及社会性科学议题讨论等体验性活动,让学生浸润在真实的情境中,尝试提出解决问题的思路,科学论证与合理决策并设计与制作产... 详细信息

态度责任是隐性的,许多教师在教学中容易忽略这一素养的培养。利用跨学科实践、设计和制作新产品、榜样和示范以及社会性科学议题讨论等体验性活动,让学生浸润在真实的情境中,尝试提出解决问题的思路,科学论证与合理决策并设计与制作产品,将自己的思维方式与行为习惯逐步内化成态度责任素养。

关键词：体验性活动态度责任素养培育方法

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

新时代四川清音的保护、传承与创新

引用

四川戏剧 2024年第5期 108-111页

作者：王子兮四川省曲艺研究院

四川清音是流行于川渝地区具有四川语言、语音特点的传统民间曲艺艺术。新时代,其保护、传承和创新面临着很大的挑战。首先是民间性和音乐性决定了保存和搜求的困难,其次是时代和文化土壤的变化决定了其生存发展的艰难。活化一种地域性... 详细信息

四川清音是流行于川渝地区具有四川语言、语音特点的传统民间曲艺艺术。新时代,其保护、传承和创新面临着很大的挑战。首先是民间性和音乐性决定了保存和搜求的困难,其次是时代和文化土壤的变化决定了其生存发展的艰难。活化一种地域性比较强的民间曲艺,最关键最有效的路径是进行商业化。通过跨行业进行多元视阈的研究、激活受众基础和吸收多样化人才、新媒体形式的多元化传播与推广等路径,能进一步创造和激活四川清音发展的生存空间,促进四川清音在新时代的有效传承。

关键词：曲艺研究四川清音保护传承

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：