摘要：We present a semi-custom design methodology based on transistor tuning to optimize the design performance. Compared with other transistor tuning approaches, our tuning process takes the cross-talk effect into account and prominently reduces the complexity for circuit simulation and analysis by decomposing the circuit network utilizing graph theory. Furthermore, the incremental placement and routing for the corresponding transistor tuning in conventional approaches is not required in our methodology, which might induce timing graph variation and additional iterations for design convergence. This methodology combines the flexible automated circuit tuning and physical design tools to provide more opportunities for design optimization throughout the design cycle.

摘要：Accurate and fast performance estimation is necessary to drive design space exploration and thus support important design decisions. Current techniques are either time consuming or not accurate enough. In this paper, we solve these problems by presenting a hybrid method for multimedia multiprocessor system-on-chip （MPSoC） performance estimation. A general coverage analysis tool GNU gcov is employed to profile the execution statistics during the native simulation. To tackle the complexity and keep the analysis and simulation manageable, the orthogonalization of communication and computation parts is adopted. The estimation result of the computation part is annotated to a transaction accurate model for further analysis, by which a gradual refinement of MPSoC performance estimation is supported. The implementation and its experimental results prove the feasibility and efficiency of the proposed method.

摘要：“黏附”是一种普遍存在的多尺度相互作用,其实质是界面处化学键、氢键或范德华力等的形成.近年来,在贻贝仿生的基础上将黏性因子邻苯二酚基团嵌入到动态硼酸酯聚合物中,成为了功能黏附性高分子的重要发展方向.本专论从分子黏附、微/纳表面黏附和宏观表面黏附3个尺度,介绍硼酸酯键管控邻苯二酚基团在高分子材料功能化方面的研究进展.分子黏附,主要讨论硼酸酯聚合物中邻苯二酚基团与分子或离子相互作用规律及其对材料形貌和刺激响应性能的调控;微/纳表面黏附,论述硼酸酯聚合物体系超分子驱动力和组装机制,介绍其在微/纳材料功能化改性方面的研究进展;宏观表面黏附,讨论硼酸酯键管控邻苯二酚基团与黏附性能调控的关联规律,介绍硼酸酯聚合物功能黏附材料在宏观组装、攀爬机器人领域的应用.最后,从新型硼酸酯聚合物设计、动态键精准管控和器件化应用的角度,对该领域未来前景和发展趋势做出了展望.

摘要：目的:优选武当地区马尾松松针中总黄酮的提取工艺,并建立其含量测定方法。方法:以芦丁为对照品,采用紫外分光光度法测定武当地区马尾松松针中总黄酮的含量。通过正交试验设计,以水为提取溶剂考察料液比、超声功率和超声时间对总黄酮含量的影响。结果:芦丁在8.256~49.536μg·m L-1浓度范围内呈良好的线性关系。总黄酮的最佳提取工艺为料液比1∶50、超声功率350 W、超声时间45 min、超声温度(70±3)℃。结论:优选出的提取工艺简便快速,建立的含量测定方法稳定可靠,可用于提取和测定武当地区马尾松松针中总黄酮的含量。

摘要：为了创新教学方法与策略,探索一种由Python程序代码引入的级数收敛性的教学方法 .这种方法的核心理念是贯通目标与效果,实现从理论到实践的转变.课前精心设计教学“任务”,课中引导学生互动与探索,课后指导学生探究学习、主动实践、完成算例,其最终目标是培养学生利用教学资源获得新知的能力、处理信息的能力、交流与合作的能力和解决问题的能力,形成一种有效的大学数学教学新方式.

摘要：变速抽蓄机组具有优越的快速有功支撑能力,是协助新能源消纳和保障新型电力系统安全稳定运行的重要手段,但其有功调节中存在功率响应差额问题以及励磁单元与调速器响应速度差异造成的功率失衡会导致转速反调波动,从而影响机组长期安全稳定运行,而目前协调有功和转速的控制策略无法充分发挥变速抽蓄机组有功快速响应能力。为此,设计了有功参考值整定单元,解决了有功调节的差额问题;提出了有功分阶段多档位控制策略,考虑转速安全范围对有功进行分阶段控制,充分协调转速反调和有功快速调节之间的矛盾;基于Simulink仿真平台,验证了所提出的策略能有效提高有功调节精度,且可在抑制转速反调的基础上有效提升功率调节性能,有利于充分发挥变速抽蓄机组调频优势,保障机组长期安全稳定运行。

摘要：信息化手段的应用和多元融合视角有助于深入解析空间特点和发展问题。本研究基于“物质与社会”双维视角的拓展,联合应用形态区划、大数据分析和社会调查多种研究方法,基于历史街区的形态类型划分,解析各类形态单元的物质形态和空间使用特征,而后结合综合价值的判定,分类提出各形态单元的更新策略。研究结论表明:历史街区的更新不应局限于空间形态解析,应结合空间使用者特征与需求的多维分析,进行不同时序与模式的确定。研究意图为历史街区空间与人群的联动管理提供新思路,研究结论对有效引导历史街区的自有资源和动力具有指导意义。

摘要：With increasing industrial activities,mercury has been largely discharged into environment and caused serious environmental *** growing level of mercury pollution has become a huge threat to human health due to its significant ***,the simple and fast means for on-site monitoring discharged mercury pollution are highly necessary to protect human beings from its pernicious effects in ***,a"turn off"fluorescent biosensor(mCherry L199 C)for sensing Hg2+was successfully designed based on direct modification of the chromophore environment of fluorescent protein *** rapid screening and characterization,the designed variant of mCherry(mCherry L199 C)was directly expressed on outer-membrane of Escherichia coli cells by cell surface display *** fluorescent biosensor was characterized to have favorable response to Hg2+at micromole level among other metal ions and over a broad pH ***,the cells of the fluorescent biosensor were encapsulated in alginate hydrogel to develop the cells-alginate hydrogel-based *** cells-alginate hydrogel-based paper could detect mercury pollution in 5 min with simple operation process and inexpensive equipment,and it could keep fluorescence and activity stable at 4℃ for 24 hr,which would be a high-throughput screening tool in preliminarily reporting the presence of mercury pollution in natural setting.

摘要：近年来，课程思政受到广大高校的高度重视，成为了专业人才培养与思想政治教育领域的研究热点，有关高校课程思政的研究文献呈现出快速增长的趋势，因此，系统回顾总结高校课程思政研究的现状有利于更好地开展相关研究与实践工作。以中文核心期刊数据库和CSSCI数据库2017—2022年刊载的1 860篇有关高校课程思政的高质量文献为研究样本，运用文献计量法和可视化文献分析软件CiteSpace对高校课程思政的研究现状进行了系统回顾，从研究文献、研究机构和研究作者等角度分析了高校课程思政研究的动态，通过对关键词共现网络进行聚类分析，并对代表性文献进行二次阅读和系统梳理，归纳出高校课程思政的热点主题，通过对关键词时间线图谱进行分析得出高校课程思政研究的演进脉络。研究结果表明：当前有关高校课程思政的研究受到广大高校教师与教育工作者的高度关注和广泛参与；研究热点主题主要涉及课程思政的本质内涵、建设实践、元素融合、教学设计、教学能力与效果评价六个方面；相关研究的演进脉络可划分为萌芽起步（2017—2018年）、快速发展（2019—2020年）和稳步发展（2021—2022年）三个阶段。最后，根据现有课程思政研究进展和改革趋势，并结合教育主管部门的政策动向，对高校课程思政的研究趋势进行了展望。

摘要：A storage system is the core of a computer,and plays an important role in the sustainable development of emerging strategic industries,such as artificial intelligence,big data,cloud computing,and the Internet of *** stack access is a major factor restricting the performance of data-intensive systems because of the increasing performance of processors and network devices.