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Development platform for UV-NIL processes using polymer masters produced by laser ablation and photolithography
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作者 Joachim Zajadacz Pierre Lorenz +1 位作者 Martin Ehrhardt Klaus Zimmer 《Nanotechnology and Precision Engineering》 2025年第2期32-41,共10页
Ultraviolet nanoimprint lithography(UV-NIL)is a versatile and cost-effective technique for the fabrication of micro-and nanostructures by copying master patterns in a planar or a roll-to-roll process through curing of... Ultraviolet nanoimprint lithography(UV-NIL)is a versatile and cost-effective technique for the fabrication of micro-and nanostructures by copying master patterns in a planar or a roll-to-roll process through curing of a liquid UV-sensitive precursor.For applications with a high pattern complexity,new UV-NIL process chains must be specified.Master fabrication is a challenging part of the development and often cannot be accomplished using a single master fabrication technique.Therefore,an approach combining different patterning fabrication techniques is developed here for polymer masters using laser direct writing and photolithography.The polymer masters produced in this way are molded into inverse silicone stamps that are used for roll-to-roll replication into an acrylate formulation.To fit the required roller size for large-area UV-NIL,several submasters with micrometer-sized dot and line gratings and prism arrays,which have been patterned by these different techniques,are assembled to final size of ~200×600 mm^(2) with an absolute precision of better than 50μm.The size of the submasters allows the use of standard laboratory equipment for patterning and direct writing,thus enabling the fabrication of micro-and even nanostructures when electron-beam writing is utilized.In this way,the effort,time,and costs for the fabrication of masters for UV-NIL processes are reduced,enabling further development for particular structures and applications.Using this approach,patterns fabricated with different laboratory tools are finally replicated by UV-NIL in an acrylate formulation,demonstrating the high quality of the whole process chain. 展开更多
关键词 Laser ablation Polymer master REPLICATION UV nanoimprint PHOTOLITHOGRAPHY Assembled master
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Research on the “Practical Jurisprudence” Teaching System in China’s Civil Procedure Law: With A Focus on the Cultivation of the Juris Master (for Non-Law Graduates)
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作者 Tang Dongchu Liu Yuhao 《Contemporary Social Sciences》 2025年第2期138-155,共18页
Practical jurisprudence is a completely new proposition in legal education and research.The introduction of the concept of“practical jurisprudence”in the teaching of the Civil Procedure Law of the People’s Republic... Practical jurisprudence is a completely new proposition in legal education and research.The introduction of the concept of“practical jurisprudence”in the teaching of the Civil Procedure Law of the People’s Republic of China(the“Civil Procedure Law”)is a major innovation in terms of values and methodology.Practical jurisprudence focuses more on practical issues,Chinese characteristics,and major needs,while strengthening the practical nature of the Civil Procedure Law.China’s traditional education system for juris masters(for non-law graduates)(“non-law JMs”)emphasizes the development of foundational legal theoretical knowledge.However,it has not fully achieved its goal of cultivating interdisciplinary and practical legal professionals.Therefore,the traditional education system for the Civil Procedure Law needs reconstruction and supplementation through the practical jurisprudence teaching system in the following areas:(a)System composition:The focus should be on the eight tertiary subsystems under the two secondary subsystems—“the knowledge teaching system and the practical teaching system”of practical jurisprudence in the Civil Procedure Law,as well as the management of their interrelationships.(b)Credit structure:The proportion of credits for“practical teaching and training”should be increased.(c)Practical ability requirements:Legal professionals should be cultivated according to the standards for juris masters(for law graduates)as stipulated by the Law of the People’s Republic of China on Academic Degrees.(d)Practice evaluation:“Formalization of the evaluations,”“homogeneity of the evaluators,”and“reliance on written formats”should be avoided. 展开更多
关键词 practical jurisprudence teaching system civil procedure law practical teaching system knowledge teaching system Juris masters(for non-law graduates)
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Current status and influencing factors of clinical teachers’teaching abilities for Master of Nursing Specialist postgraduates:a cross-sectional study
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作者 Yang-Shuo Li Jing-Jing Wang +3 位作者 Ru-Ru Guo Yan Shi Na-Na Liu Qian-Qian Liu 《Frontiers of Nursing》 2025年第2期225-235,共11页
Objective:To assess the teaching efficacy of clinical instructors for MNS postgraduates,this study aims to gather insights into clinical educators’perceptions concerning MNS postgraduate training and identify key com... Objective:To assess the teaching efficacy of clinical instructors for MNS postgraduates,this study aims to gather insights into clinical educators’perceptions concerning MNS postgraduate training and identify key competencies required for effective teaching.Methods:This study utilized a cross-sectional design.An online questionnaire survey was distributed among clinical faculty members engaged in the education of MNS postgraduates.The survey addressed 4 areas:general teaching conditions,perceptions regarding training for MNS postgraduates,core competencies expected from clinical teachers,and implementation strategies for delivering clinical instruction tailored to these graduates.Results:A total of 143 clinical teachers supervising MNS postgraduates completed the questionnaire.Of these respondents,101(70.62%)held a bachelor’s degree while 42(29.37%)possessed a master’s degree.Although these clinicians demonstrated certain core competencies,they exhibited lower proficiency in understanding trends related to scientific advancements and current research priorities along with limited research capabilities 4.00(3.00,4.00).Notably,>95.8%of teachers recognized differences between the 2 categories of postgraduate students;only 4.2%were completely unaware of such distinctions.There was no statistically significant relationship between the demographic data of clinical educators and their core competencies(P>0.05).Conclusions:This study revealed no significant correlation between the general characteristics of clinical teachers and the core competencies of MNS postgraduates.Additionally,we identified a lack of effective communication and collaboration between MNS postgraduate supervisors and clinical educators.The findings from this research offer valuable insights for further investigation into the factors that influence the core competencies of clinical teachers,as well as strategies to enhance the clinical teaching standards for MNS postgraduates. 展开更多
关键词 clinical teaching Master of Nursing Specialist postgraduate education SURVEY teaching ability
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Design of a 6-DOF Master Robot for Robot-Assisted Minimally Invasive Surgery
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作者 CHENG Hongyu ZHANG Han +1 位作者 WANG Shuang XIE Le 《Journal of Shanghai Jiaotong university(Science)》 2025年第4期658-667,共10页
Master robots are integral components of teleoperated robot-assisted minimally invasive surgery systems.Among them,parallel mechanism-based 6-degree-of-freedom master robots are distinguished by low inertia and high-f... Master robots are integral components of teleoperated robot-assisted minimally invasive surgery systems.Among them,parallel mechanism-based 6-degree-of-freedom master robots are distinguished by low inertia and high-force feedback.However,complex kinematics and singularities are the main barriers limiting its usage.This study converts the Hexa-type 6-RUS mechanism into a master robot to construct master-slave teleoperation system.The clinical background is briefly introduced and a representative surgical robot is employed to analyze the master-slave mapping relationship.The inverse/forward kinematics,the Jacobian matrix,and the translation and orientation workspace are derived as the bases of master robot’s application.The architecture parameters are optimized by the global transmission index to achieve better motion/force transmissibility.Based on the optimal result,the prototype and the master-slave control loop are constructed.Finally,the corresponding master-slave teleoperation experiment and model experiment demonstrate that the proposed master robot satisfies the basic need for medical application. 展开更多
关键词 master robot master-slave teleoperation system surgical slave robot master-slave control
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Students’Preferences on Rotation Scheduling of Tuina Department for Professional Master’s Students:A Student Perspective Survey
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作者 Yinan Chen Jiayu Wang +3 位作者 Ruilu Liu Mingjie Yin Yong Liao Xueqiu Chen 《Journal of Contemporary Educational Research》 2025年第10期263-269,共7页
Objective:To clarify the preferences and core demands of professional Master’s students in Tuina at Yunnan University of Chinese Medicine regarding“concentrated”versus“dispersed”rotation schedules in the Tuina de... Objective:To clarify the preferences and core demands of professional Master’s students in Tuina at Yunnan University of Chinese Medicine regarding“concentrated”versus“dispersed”rotation schedules in the Tuina department,as well as their preferred year for primary rotation,providing evidence for optimizing rotation programs and improving the quality of standardized training.Methods:Paper questionnaires,including two multiple-choice questions and one open-ended question,were distributed to 30 professional Tuina Master’s students,completed on site,and collected immediately.Descriptive statistics were used to analyze preference distributions.Results:A total of 30 questionnaires were distributed and 30 valid responses were collected,achieving a 100%response rate.Among them,23 students(76.7%)supported“concentrated training,”while seven students(23.3%)preferred“dispersed training.”Regarding rotation year preference,18 students(60.0%)selected the second year for concentrated Tuina rotations,eight students(26.7%)selected the third year,and four students(13.3%)selected the first year.The core demands supporting concentrated training were“skill continuity,deep involvement in diagnosis and treatment,and smooth mentorship transition,”whereas those supporting dispersed training were“integration of multi-department knowledge,coordination of research time,and avoidance of fatigue from a single department.”Conclusion:Most professional Tuina Master’s students prefer concentrated Tuina rotations in the second year.It is recommended that institutions adopt a“second-year core department concentrated+auxiliary department flexible dispersed”model and establish flexible coordination and feedback mechanisms to balance clinical skill development with individualized growth needs. 展开更多
关键词 TUINA Professional Master’s degree Standardized training Rotation schedule Concentrated training Dispersed training
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Cultivation of“Clinical-Research”Compound Talents for Master’s Degree in Traditional Chinese Medicine:Dilemma and Reform Thoughts on Integration of Scientific Research under Scientific Research System
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作者 Xi Liu Heguo Yan +4 位作者 Hongting Lu Kuanmeng Chi Bingbing Chen Zhaofu Li Zhaohu Xie 《Journal of Contemporary Educational Research》 2025年第8期189-197,共9页
Under the current medical education reform,the“clinical-research”model for TCM master’s degrees is a key approach to advancing the modernization of traditional Chinese medicine.With the core of“dual-track integrat... Under the current medical education reform,the“clinical-research”model for TCM master’s degrees is a key approach to advancing the modernization of traditional Chinese medicine.With the core of“dual-track integration,”this model aims to enhance both clinical practice and research abilities simultaneously.However,ten years of practice have shown that it still faces multiple challenges:an imbalance between clinical rotation time and research investment,deeply rooted attitudes that prioritize clinical work over research,insufficient TCM research resources and fragmented platforms,and poor coordination between policy and teaching design.These issues,particularly the methodological differences between TCM experience-based medicine and modern evidence-based medicine,further complicate the integration of clinical and research efforts.Therefore,there is an urgent need to promote the deep integration of research training into clinical practice through system design,value orientation,and evaluation systems,fostering a new ecological environment where clinical and research efforts thrive together.This will help cultivate TCM professionals with both strong clinical skills and innovative research capabilities,providing sustained momentum for the high-quality development of traditional Chinese medicine. 展开更多
关键词 Traditional Chinese medicine professional master Clinical-research integrated talents Research integration dilemmas Integration with evidence-based medicine Training model reform
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Beijing Star River:An Elegant-Distinguished Pet Stone(International Marketing Masters Make Marketings for Beijing Star River)
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作者 Sun Yongjian 《China's Foreign Trade》 2005年第20期24-25,共2页
Star River(or Star Bay), an elite works of Hong Yu Group, is located in Sijixinghe Road, Chaoyang Beilu,Beijing. It is a distinguished residence area, occupyingland of 300 thousand sq. meters. The north side is a for-... Star River(or Star Bay), an elite works of Hong Yu Group, is located in Sijixinghe Road, Chaoyang Beilu,Beijing. It is a distinguished residence area, occupyingland of 300 thousand sq. meters. The north side is a for-est garden with 1600 or more mu, the eastern side is agreen belt with 2000-more mu.With an investment of RMB1.5 billion, Beijing StarRiver provides a beautiful landscape and high-qualityresidence. In order to realize a high harmony of con-struction and environment, Beijing Star River has in-vested millions into environmental construction.Star River has won a reputation of Detailed Qualityby Milton Kotler, a world famous marketing master. "Iwould start marketing the apartments in Los Angles, inNew York city, in Chicago, London, " Milton said.One day in September, brothers Kotler(Milton Kotlerand Philip Kotler), world famous marketing masters wereinvited to Star River as noble vips. Their praise forStar River were so high that people would prefer to takeit as an artistic job rather than a residence. 展开更多
关键词 STAR International Marketing masters Make Marketings for Beijing Star River Beijing Star River
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Ballistic performance of titanium-based layered composites made using blended elemental powder metallurgy and hot isostatic pressing
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作者 Pavlo Markovsky Jacek Janiszewski +5 位作者 Dmytro Savvakin Oleksandr Stasyuk Bartosz Fikus Victor Samarov Vianey Ellison Sergey V.Prikhodko 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第9期1-14,共14页
Metal matrix composites tiles based on Ti-6Al-4V(Ti64)alloy,reinforced with 10,20,and 40(vol%)of either TiC or TiB particles were made using press-and-sinter blended elemental powder metallurgy(BEPM)and then bonded to... Metal matrix composites tiles based on Ti-6Al-4V(Ti64)alloy,reinforced with 10,20,and 40(vol%)of either TiC or TiB particles were made using press-and-sinter blended elemental powder metallurgy(BEPM)and then bonded together into 3-layer laminated plates using hot isostatic pressing(HIP).The laminates were ballistically tested and demonstrated superior performance.The microstructure and properties of the laminates were analyzed to determine the effect of the BEPM and HIP processing on the ballistic properties of the layered plates.The effect of porosity in sintered composites on further diffusion bonding of the plates during HIP is analyzed to understand the bonding features at the interfaces between different adjacent layers in the laminate.Exceptional ballistic performance of fabricated structures was explained by a significant reduction in the residual porosity of the BEPM products by their additional processing using HIP,which provides an unprecedented increase in the hardness of the layered composites.It is argued that the combination of the used two technologies,BEPM and HIP is principally complimentary for the materials in question with the abilities to solve the essential problems of each used individually. 展开更多
关键词 Metal matrix composites Powder metallurgy Titanium hydride powder Master alloy Titanium carbide Titanium boride Hot isostatic pressing Ballistic tests
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Construction of the Genealogy of Eccentric Monks Based on the Historical Materials of Chan Buddhism in the Song Dynasty--From Enlightened Masters in Chan Buddhism,Sages,to Saints
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作者 Jing-Jia Huang 《Cultural and Religious Studies》 2024年第8期501-511,共11页
Regarding the Chan Buddhism lamp records from the Song Dynasty and starting from Jing De Zhuan Deng Lu,the category of“enlightened masters in Chan Buddhism”禪門達者was listed separately,meaning a separate category w... Regarding the Chan Buddhism lamp records from the Song Dynasty and starting from Jing De Zhuan Deng Lu,the category of“enlightened masters in Chan Buddhism”禪門達者was listed separately,meaning a separate category was established for eccentric monks who pretended to be crazy,had unknown inheritance and miraculous deeds,and were difficult to classify.The following lamp records named this category of eccentric monks as“sages”散聖,or“saints”應化聖賢,which constructed another historical genealogy for the special Chan Buddhism eccentric monks.Moreover,the early lamp records included mostly idiosyncratic mad monks from previous dynasties.Since the Southern Song Dynasty,Chan Buddhism historical materials included many sages from the current dynasty.Therefore,this study mainly examines how the genealogy of Chan Buddhism eccentric monks was constructed in Song Dynasty Chan Buddhism lamp records,including quotations,and organizes the images of eccentric monks in the Song Dynasty,as written in Chan Buddhism historical materials,in order that the meaning of existence of these enlightened masters,sages,saints,etc.,included in the genealogy of Song Dynasty eccentric monks in the history of Chan Buddhism can be reflected. 展开更多
关键词 genealogy of eccentric monks enlightened masters in Chan Buddhism sages in Chan Buddhism saints in Chan Buddhism Song Dynasty
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Innovation Transformation and Industry-Education Integration:A Study on the Integration Path of Guangxi Zhuang’s Intangible Cultural Heritage and Master of Arts Education in China
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作者 Danya Liu Yujun Sun 《Journal of Contemporary Educational Research》 2024年第4期86-91,共6页
This study focuses on the master of arts education in higher education institutions in Guangxi Zhuang Autonomous Region of China,explores the path of integrating Guangxi Zhuang’s intangible cultural heritage with the... This study focuses on the master of arts education in higher education institutions in Guangxi Zhuang Autonomous Region of China,explores the path of integrating Guangxi Zhuang’s intangible cultural heritage with the teaching of master of arts,and puts forward the teaching mode of“thinking guidance-autonomous judgement-program construction.”A theoretical model of innovative transformation of intangible cultural heritage is also summarized.Through the development of this study,it is expected to further enrich the practical teaching mechanism of master of arts education in Chinese universities and form a master of arts teaching model with strong local cultural characteristics.At the same time,the teaching reform based on the integration of Guangxi Zhuang’s intangible cultural heritage and master of arts education also has strong practical significance for promoting the inheritance and innovation of Chinese intangible cultural heritage,promoting the development of cultural and creative industries,and serving the economic and social development of Guangxi. 展开更多
关键词 Intangible cultural heritage Master of arts education Integration path Guangxi Zhuang Autonomous Region Teaching mode
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一种基于主从模式的分片区块链矩阵框架
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作者 夏欣 林立强 +1 位作者 赵容梅 琚生根 《四川大学学报(自然科学版)》 北大核心 2025年第1期96-106,共11页
在基于以太坊区块链的改进路线中,分片概念的提出提升了交易每秒事务处理量、优化了以太坊的架构,但传统分片结构仍未能解决交易节点拥堵/可拓展性低/跨片交易缓慢等问题,这大大地限制了分片架构的优势体现.本文提出一种基于主从模式的... 在基于以太坊区块链的改进路线中,分片概念的提出提升了交易每秒事务处理量、优化了以太坊的架构,但传统分片结构仍未能解决交易节点拥堵/可拓展性低/跨片交易缓慢等问题,这大大地限制了分片架构的优势体现.本文提出一种基于主从模式的分片区块链矩阵框架,保留原以太坊主链及信标链的共识认证/验证者管理功能,将原来分片链的数据处理功能纵向和横向解耦划分给不同的master/slave链来执行,master/slave链通过State Channel状态通道方法与分片链进行纵向链接,横向平行的master/slave链间的跨分片交易则通过哈希时间锁的方式在限定时间内完成,通过在现有分片架构上实现横向与纵向的结构分层形成矩阵,以此来优化大量存在的片内/跨片数据交易.仿真实验表明,对比现有分片结构,改进的主从模式分片区块链矩阵的TPS表现1.67倍优于现有架构,交易时延可低至20 ms,交易失败率可低至1%. 展开更多
关键词 区块链 分片 master/slave 状态通道 哈希时间锁
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中空连续体机械臂的设计与主从任务转换避障控制 被引量:1
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作者 万淑敏 孙长超 +2 位作者 袁培康 常乐 康荣杰 《天津大学学报(自然科学与工程技术版)》 EI CAS 北大核心 2025年第1期24-35,共12页
连续体机械臂具有优良的弯曲性能和柔顺灵活性,表现出了独特的环境适应性和人机交互安全性,在微创手术、灾后救援、狭窄空间检修等非结构化环境及家庭服务领域具有广阔的应用前景.然而,连续体机械臂的中央脊椎骨占据其内部空间,模块单... 连续体机械臂具有优良的弯曲性能和柔顺灵活性,表现出了独特的环境适应性和人机交互安全性,在微创手术、灾后救援、狭窄空间检修等非结构化环境及家庭服务领域具有广阔的应用前景.然而,连续体机械臂的中央脊椎骨占据其内部空间,模块单元冗余且运动耦合导致避障运动困难等问题妨碍了其在实际场景中的应用.针对以上问题,设计了内部中空的丝驱动连续体机械臂,为末端执行器的电液气管线留置出了充足的物理空间,并通过鲍登管在结构上实现了模块单元间的运动解耦;考虑丝驱动连续体机械臂的弯曲特性,建立了解耦后的简化运动学模型和运动学闭环控制算法;构造了评估空间障碍物与连续体机械臂最短距离的计算方法;在传统变构型避障运动控制的基础上,提出了基于主从任务转换的避障控制算法,能够在末端轨迹跟踪约束下,实现对障碍的躲避,同时也可暂时舍弃对给定末端轨迹的跟踪以躲避位于末端运动轨迹附近的障碍物.仿真和实验结果表明:所设计的连续体机械臂具有良好的运动能力,轨迹跟踪控制的末端位置平均误差为2.510 mm,仅为连续体机械臂长度的0.32%;提出的主从任务转换避障控制算法有效,能够准确评估末端运动与避障运动的优先级,相关研究工作为连续体机械臂的设计和运动控制提供了新的参考和思路. 展开更多
关键词 连续体机械臂 解耦 避障 主从任务转换
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药物临床试验的设计创新和技术创新 被引量:2
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作者 熊海燕 罗剑锋 王伟炳 《复旦学报(医学版)》 北大核心 2025年第1期153-158,共6页
药物临床试验是评估药物有效性和安全性的实验流行病学研究方法。本文介绍了药物临床试验设计创新的类型和设计思路,为相关研究提供方法学参考。适应性设计是一类复杂创新型临床试验设计方法,依据适应性的目的可以分为:成组序贯设计,样... 药物临床试验是评估药物有效性和安全性的实验流行病学研究方法。本文介绍了药物临床试验设计创新的类型和设计思路,为相关研究提供方法学参考。适应性设计是一类复杂创新型临床试验设计方法,依据适应性的目的可以分为:成组序贯设计,样本量重估计,无缝试验,富集设计,主方案设计(篮式试验、伞式试验、平台试验等)。适应性设计具备更大的调整灵活性,在一定程度上克服了常规临床试验的缺点,进而提高研究结果的有效性和论证强度。药物临床试验的设计创新与重塑将为实现精准医学目标提供更有力的循证证据。 展开更多
关键词 药物临床试验 适应性设计 主方案设计 人工智能
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职业教育“双师型”教师队伍高质量发展研究——基于高职院校校企合作技能大师工作室建设 被引量:3
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作者 王永丰 刘宁宁 +2 位作者 王莉 李建民 张伟阳 《职业技术》 2025年第3期67-71,82,共6页
高职院校“双师型”教师队伍能力提升,是落实职业教育改革重点建设任务和“双高”建设重点任务的关键。基于技能大师工作室建设,提升教师教学能力、应用型教科研能力、社会实践服务能力,既是“双师型”教师队伍高质量发展的有效途径,又... 高职院校“双师型”教师队伍能力提升,是落实职业教育改革重点建设任务和“双高”建设重点任务的关键。基于技能大师工作室建设,提升教师教学能力、应用型教科研能力、社会实践服务能力,既是“双师型”教师队伍高质量发展的有效途径,又是落实产教融合、科教融汇的关键所在。依托校企合作技能大师工作室建设,以项目驱动深入推进“双师型”教师能力提升,丰富技能大师工作室成果,实现校企合作协同发展,提升高职院校教学质量,打造跨界融合能力突出的“双师型”师资队伍。 展开更多
关键词 大师工作室 高职院校 “双师型”教师
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弘扬教育家精神,做行知式大先生——学习习近平总书记《论教育》的体会和思考 被引量:2
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作者 周洪宇 曾嘉怡 《中国教育科学(中英文)》 北大核心 2025年第3期34-42,共9页
陶行知穷毕生之力,寻觅中国教育的生路不辍;竭全部之智,探索符合本土的教育理论不止,对近现代教育的发展作出了卓越贡献。陶行知是《论教育》一书中出现频率较高的近现代教育改革先驱者,是当之无愧的大先生、教育家。在新时代背景下,把... 陶行知穷毕生之力,寻觅中国教育的生路不辍;竭全部之智,探索符合本土的教育理论不止,对近现代教育的发展作出了卓越贡献。陶行知是《论教育》一书中出现频率较高的近现代教育改革先驱者,是当之无愧的大先生、教育家。在新时代背景下,把陶行知作为弘扬教育家精神的典范,面向我国广大教师和教育工作者发出“做行知式大先生”的倡议,既有逻辑上的合理性,又契合实际需求,还具备可操作性。从教育家精神的今昔对比和时代意蕴来看,“行知式大先生”在内涵特征上既坚守着“陶汁陶味”的传统根基,又吸纳了“习言习语”的现代元素。为弘扬教育家精神,助推教师队伍涌现更多行知式大先生,应明晰价值意蕴,加强宏观系统的整体布局与规划;发挥联动效应,构建中观系统的多元支持体系;提供培育策略,关注微观系统的教师成长与发展。 展开更多
关键词 《论教育》 教育家精神 行知式大先生
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外科学专业型硕士研究生培养模式的探讨与建议 被引量:2
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作者 邱学文 王甲汉 +2 位作者 董茂龙 杨磊 李志清 《卫生职业教育》 2025年第5期1-4,共4页
在我国临床医学专业型硕士研究生培养过程中实施并轨模式近10年,在具体实施过程中出现了一些问题,有必要对既往的并轨模式实施情况进行回顾性分析,因此,以外科学专业型硕士研究生并轨模式培养中现实存在的内在性矛盾为切入点,即系统性... 在我国临床医学专业型硕士研究生培养过程中实施并轨模式近10年,在具体实施过程中出现了一些问题,有必要对既往的并轨模式实施情况进行回顾性分析,因此,以外科学专业型硕士研究生并轨模式培养中现实存在的内在性矛盾为切入点,即系统性学习需求与集中学习时间不足间的矛盾、科研能力培养需求与专业导师所在科室培训时间有限间的矛盾、沉重的毕业压力与心理承受力间的矛盾,阐述人工智能为外科学专业型硕士研究生培养带来的机遇和挑战,并提出针对性的建议,以期完善我国临床医学专业型硕士研究生培养制度。 展开更多
关键词 外科学 专业型硕士研究生 培养模式 人工智能
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明中叶七律宗向与复古诗学演进 被引量:1
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作者 孙学堂 王春翔 《苏州大学学报(哲学社会科学版)》 北大核心 2025年第1期142-151,共10页
以对唐人七律的接受为视点,可以把明中叶复古诗学的发展分为三期:弘、正诗学辨体观念尚不甚精严,李梦阳及其羽翼因学杜变体而或近于宋调;嘉靖前期出现了“为初唐者”与“清澹派”,两者的共同点是出于对宗唐复古审美理想的维护,反对宗法... 以对唐人七律的接受为视点,可以把明中叶复古诗学的发展分为三期:弘、正诗学辨体观念尚不甚精严,李梦阳及其羽翼因学杜变体而或近于宋调;嘉靖前期出现了“为初唐者”与“清澹派”,两者的共同点是出于对宗唐复古审美理想的维护,反对宗法杜诗变体;嘉靖后期至隆庆间,崇正诎变的复古思想进一步发展,“后七子派”承续了嘉靖前期诗人的部分理念,在七律上并重初、盛唐十四家,追求高华雄壮的唐音正声。辨体观念与复古诗学的深化、圆融,可以视为明中叶诗学发展的主要脉络。 展开更多
关键词 杜诗 李梦阳 前七子 嘉靖前期 后七子
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基于煤样主控裂隙尺度筛选的等效DFN模型构建 被引量:2
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作者 郎丁 张子鑫 +4 位作者 伍永平 余洋 余建东 武小博 张耀 《煤炭科学技术》 北大核心 2025年第3期435-449,共15页
煤岩体中不同尺度层级的节理交错,分布规律迥异,对其变形破坏特征有重要影响。筛选对煤岩力学行为起主控作用的裂隙尺度层级并在该尺度基础上进行随机节理网络模型(Discrete Fracture Network,DFN)构建,在保证数值计算准确性的同时降低... 煤岩体中不同尺度层级的节理交错,分布规律迥异,对其变形破坏特征有重要影响。筛选对煤岩力学行为起主控作用的裂隙尺度层级并在该尺度基础上进行随机节理网络模型(Discrete Fracture Network,DFN)构建,在保证数值计算准确性的同时降低冗余裂隙尺度对模型构建及计算机算力的影响,可为提升岩石力学数值计算效能提供新的途径。基于CT扫描与图像处理技术,提取煤样三维裂隙结构及其几何特征参数,嵌入RFPA^(3D)-CT进行单轴加载数值分析并与试件的单轴压缩试验结果进行比对,确定了煤样数值模型的细观力学参数,进一步逐级筛选出对煤样力学行为起主要控制作用的裂隙尺度层级。在此基础上,运用Baecher模型和Monte-Carlo随机模拟理论,依据主控裂隙的几何分布特征构建等效DFN模型,并通过数值模拟计算对模型的有效性进行验证。研究结果表明:研究煤体试件样本的主控裂隙尺度(迹长)不小于14 mm,对该尺度以上的裂隙与对该尺度及以上裂隙进行删减的模型相较,破坏形态由“2”型转为斜“1”型,破坏峰值强度升高了61.79%,该尺度以上裂隙的存在与否对试件模型的数值计算结果起到决定性的控制作用。基于试件的主控裂隙尺度构建了等效DFN模型,其节理几何特征与基于CT扫描的真实裂隙各项几何特征参数基本一致,其平均误差为5.16%,等效DFN模型在单轴加载作用下表现出的力学性质与CT扫描后6组全裂隙模型相对吻合,两者峰值强度平均误差为13.41%,破坏计算时步的计算效率提升了14.59%。 展开更多
关键词 CT扫描 阈值分割 裂隙几何统计 主控裂隙尺度 随机节理网络模型
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交通运输工程研究生“三融合、三协同”培养路径创新与实践 被引量:1
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作者 陈坚 刘柯良 +1 位作者 段力伟 彭勇 《交通工程》 2025年第7期106-112,共7页
优化培养模式的改革是提升交通运输工程硕士研究生培养质量的关键环节。系统梳理国内外理论研究与案例分析,明确目前交通运输工程研究生培养的主要问题,包括培养环节趋同、培养内容与实践脱轨、高质量拔尖型人才不足等问题,对此构建了1... 优化培养模式的改革是提升交通运输工程硕士研究生培养质量的关键环节。系统梳理国内外理论研究与案例分析,明确目前交通运输工程研究生培养的主要问题,包括培养环节趋同、培养内容与实践脱轨、高质量拔尖型人才不足等问题,对此构建了1个“三融合、三协同”培养路径,并在重庆交通大学交通运输学院进行实践应用。通过培养路径改革,重庆交通大学交通运输工程专业研究生在实践能力、创新能力等方面有了明显的提升。 展开更多
关键词 交通运输工程 学术学位硕士研究生 专业学位硕士研究生 培养模式 培养路径
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国医大师张静生治疗冠心病心绞痛辨证思路及用药规律总结 被引量:2
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作者 张会永 张静生 《辽宁中医杂志》 北大核心 2025年第3期45-48,共4页
冠心病心绞痛为临床常见的一类慢性基础疾病,多表现为胸痛、胸闷等症状为主,属于中医药治疗的优势病种。张静生教授,博士研究生导师,国医大师,首批全国名中医。对于治疗冠心病心绞痛见解独到,认为气阴两虚为本,痰瘀互结为标。在心脏气... 冠心病心绞痛为临床常见的一类慢性基础疾病,多表现为胸痛、胸闷等症状为主,属于中医药治疗的优势病种。张静生教授,博士研究生导师,国医大师,首批全国名中医。对于治疗冠心病心绞痛见解独到,认为气阴两虚为本,痰瘀互结为标。在心脏气阴两虚为主、痰瘀互结为标的病机指导下,张静生教授临床治疗冠心病多以益气养阴,祛痰化瘀立法,处方以丹参生脉饮与冠心康合方应用,根据辨证灵活化裁加减药对,该文整理张静生教授治疗冠心病心绞痛之学术思想与临床经验用药,以期对临床名老中医学术经验传承和冠心病心绞痛的临床治疗提供参考。 展开更多
关键词 国医大师 张静生 冠心病心绞痛 胸痹 气阴两虚
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