摘要：视觉平衡是影响地图信息传输效果的重要因素之一。由于泛在制图的非专业性,泛在地图图像的视觉平衡效果往往取决于制图者自身美学素养的高低,不具有可控性。因此,迫切需要发展泛在地图图像的视觉平衡度计算方法。现有的地图视觉平衡度计算方法存在因子不全、判别结果主观依赖性强等问题。针对这些问题,本文提出了一种结合地图图像计算特征与专家评价知识的泛在地图图像视觉平衡度计算框架。通过丰富地图视觉密度影响因子,并引入概率模型学习专家对泛在地图图像的评价知识,实现对泛在地图图像视觉平衡度复杂分布的有效判别。本文以专家问卷的方式搜集了30名地图制图专家对1730幅泛在地图图像的视觉平衡评价数据,构建了一个泛在地图图像视觉平衡度评价数据集。将计算得到的地图视觉平衡指标作为贝叶斯决策器的地图特征属性输入,将地图视觉平衡的专家评价数据作为贝叶斯决策器的分类结果,利用最小错误率贝叶斯决策方法对泛在地图图像的视觉平衡度进行判别,有效解决了人为主观判别地图视觉平衡度存在的不确定性问题。经实验验证,该框架在本文构建的泛在地图图像视觉平衡度评价数据集上能取得82.85%的评价准确率。

摘要：叙事医学强调叙事能力的养成从而为医学人文的落地和人文医学的实践提供路径。《温暖的医学》基于叙事医学理论,设计了覆盖“生•老•病•死”全生命周期的两层进阶式实践教学体系,将叙事医学能力培养和临床实践有机结合,在实际医疗场景中锻炼医学生运用叙事医学理念和工具,围绕“生物−心理−社会”三个层面开展观察和反思,并做出回应和行动。实践教学提升了医学生对医学本质的理解,促进了医疗关系中主体间性的建立及全人医学诊疗思维的形成。该课程的设计和建构在医学人文课程教学的系统化、规范化、标准化方面也开展了有益的探索。

摘要：将信息技术应用于儿童发展性评价,可以提高评价效率,丰富数据类型;追踪动态变化,提高评价准确性;深入真实情境,提升生态效度;优化数据分析,扩大参与主体。然而,目前信息技术在儿童发展性评价中的应用尚不成熟。要充分发挥信息技术在儿童发展性评价中的预期作用,未来信息技术应当强调尊重儿童特点,关注技术友好;利用人工智能,发挥数据价值;规范数据应用,加强顶层设计;加大教育培训支持力度,充分赋能教师。

摘要：Porous organic polymers(POPs)are an emerging class of porous materials,having many promising applications in a variety of *** them,covalent triazine frameworks(CTFs)featuring conjugated and porous structures can be well applied in *** achieve high optoelectronic performance,usually the design and synthesis of CTFs based on appropriate building blocks is *** we report the synthesis of two fluorescent CTFs based on typical fluorescent building blocks,in which CTF-Py constructed from a pyrene(Py)building block was reported for the first time,showing prospective applications in the sensing of nitroaromatics with high sensitivity,and photocatalytic water splitting and carbon dioxide reduction with high performance in comparison with other porous organic materials.

摘要：幼儿园教师观察价值面临着异化危机,主要体现为:为了应付教学检查而观察、为了撰写观察记录而观察、为了运用观察技术而观察。这影响了幼儿园教师观察价值的实现。究其原因:机械的工作任务驱动束缚了教师作为观察主体作用的发挥;职前职后教育的不足导致教师实现观察价值的素养不足;对社会文化环境和国情的忽略制约了教师观察价值的实现效果。

摘要：入专业基地教育作为住院医师规范化培训(简称住培)始业教育的重要组成部分,具有承上启下的作用。规范且高质量的入专业基地教育不仅可以增加新入培住院医师的归属感,而且可以帮助他们明晰未来的职业发展目标。该文以《住院医师规范化培训入专业基地教育指南(2022年版)》为依据,结合放射科专业特点,设计了基于多个轮转科室联动与多个亚专业组协同的“合纵连横”式放射科住培入专业基地教育模式和培训课程体系,并按照准备阶段、实施阶段和评价与反馈阶段严格落实,最终形成一套纵横交错的网格化入专业基地教育新范式,以期为其他专业基地的始业教育提供借鉴和参考。

摘要：介绍了调车机车燃料电池混合动力系统的设计和建模。对比了不同类型的机车燃料电池的应用,建立了燃料电池和辅助储能设备的模型,并且设计了整个系统的控制策略。利用提出的控制策略,功率控制系统调节了燃料电池和包括电池以及超级电容的辅助储能单元之间能量需求的分配。分析了典型调车机车功率占空比的试验数据。通过试验数据,验证了所提出的控制系统。结果显示,在不同电源供电时,这个控制系统有能力保持输出电压在确定的范围以内、保持电池的充电状态在最优区间,并满足机车对高效功率的要求。

摘要：In order to establish the constitutive relationship of high-ductility cementitious composites(HDCCs)under uniaxial tensile load and to guide the structural design of HDCCs,based on the analysis of the existing uniaxial tensile constitutive relationship and ideal elastoplastic linear strain-hardening model,a bilinear tensile constitutive equation of HDCCs was *** points of nominal initial cracking and nominal maximum stress were adopted as control points of the line segment,and the constitutive relationship of HDCCs was *** series of uniaxial tensile stress-strain curves of HDCCs were combined to perform an experimental application of the constitutive equation,along with an analysis of the key *** experimental results confirm the ability of the constitutive equation to overcome the problem of insufficient or excessive redundancy of existing models in terms of calculation bearing ***,the measured maximum stress value is larger than the nominal value,and the ratio between the two values ranges from 1.08 to ***,the tensile strain at the softening point obtained by fitting a straight line with the valley points of the strain-hardening stage curve is greater than or equal to the tensile strain at the measured maximum stress point and the ratio of the fitted values to the measured values ranges from 1.00 to 1.19.

摘要：To obtain the design parameters of the structure made by ecological high ductility cementitious composites(Eco-HDCC),the effects of curing age on the compressive and tensile stress-strain relationships were *** reaction degree of fly ash,non-evaporable water content and the pH value in pore solution were calculated to reveal the mechanical *** results indicate that as the curing age increases,the peak compressive strength,peak compressive strain and ultimate tensile strength of Eco-HDCC ***,the ultimate compressive strain and ultimate tensile strain of Eco-HDCC decrease with the increase in curing ***,as the curing age increases,the reaction degree of fly ash and non-evaporable water content in Eco-HDCC increase,while the pH value in the pore solution of Eco-HDCC ***,the simplified compressive and tensile stress-strain constitutive relationship models of Eco-HDCC with a curing age of 28 d were suggested for the structure design safety.

摘要：To explore the tensile property parameters in the structural design of bridge deck link slabs made by ecological high ductility cementitious composites (Eco-HDCC), the tensile properties of Eco-HDCC exposed to interactive freeze-thaw-carbonation cycles and single carbonation cycles were studied. The carbonation front of Eco-HDCC was determined by X-ray diffraction and differential scanning calorimetry-thermal gravimetric methods. Results indicate that the carbonation front of Eco-HDCC after interaction tests is deeper than that of Eco-HDCC after single carbonation tests. In addition, the ultimate tensile strength for Eco-HDCC shows an increasing trend after the interaction of 1 to 5 cycles compared with that of virgin specimens, while the ultimate tensile strength decreases after the interaction of 10 to 15 cycles. For single carbonation tests, the ultimate tensile strength of Eco-HDCC increases as cycles increase. After being subjected to interaction and single carbonation environments, both the ultimate tensile strain and tensile strain energy of Eco-HDCC decrease as cycles increase, and the decrease degrees of Eco-HDCC after interaction cycles are larger than those of Eco-HDCC after single carbonation. For general consideration, the tensile stress-strain relationship of Eco-HDCC after the interaction of 15 cycles can be adopted in the design of bridge deck link slabs for the purpose of safety.