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我国幼儿体育活动的游戏元素探析及其应用路径研究

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北京体育大学学报 2024年第4期47卷 80-96页

作者：张莹聂洋溢程凯宇杨昕浙江师范大学儿童发展与教育学院浙江杭州310012 浙江省杭州市滨江区钱江湾幼儿园浙江杭州310051

游戏元素是游戏化的操作工具与具体抓手,探讨幼儿体育活动的游戏元素及其应用路径,对优化幼儿体育活动实践、提升幼儿体育活动质量具有重要意义。研究运用扎根理论法对100篇经典体育游戏案例、300篇体育教学活动文本,以及60个优秀体育... 详细信息

游戏元素是游戏化的操作工具与具体抓手,探讨幼儿体育活动的游戏元素及其应用路径,对优化幼儿体育活动实践、提升幼儿体育活动质量具有重要意义。研究运用扎根理论法对100篇经典体育游戏案例、300篇体育教学活动文本,以及60个优秀体育教学活动视频进行分析,旨在提炼幼儿体育活动的游戏元素,并探析游戏元素在幼儿体育活动中的应用路径。幼儿体育活动的游戏元素由5个动力元素、14个推进元素,以及45个组件元素三层级指标所构成,这三级指标由内向外,由抽象到具体形成了“三圈”游戏元素体系。2)在游戏化过程中游戏元素的使用存在着年龄效应,遵循年龄特点使用游戏元素,是保障幼儿体育活动游戏化成效的重要举措;3)幼儿体育活动游戏元素的应用主要有联结、自主、胜任等3条支持路径。这3条路径既有重点支持,也有为其他需要所提供的不同程度的支持交融,为幼儿体育活动游戏化实现提供了切实可行的操作思路与方法。

关键词：幼儿体育活动游戏化游戏元素

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发动机曲轴断裂故障分析

内燃机与配件 2024年第5期 71-73页

作者：聂淑一陈慧上海汽车集团股份有限公司创新研究开发院上海201805

随着柴油机发动机的爆压不断提高,发动机曲轴断裂的问题屡屡发生,成为发动机开发中的核心问题。本文以某1.9L直列四缸柴油机为例,通过有限元分析零件的实际失效状态,从而找到曲轴断裂的根本原因,并制定改进措施,为发动机设计人员分析曲... 详细信息

随着柴油机发动机的爆压不断提高,发动机曲轴断裂的问题屡屡发生,成为发动机开发中的核心问题。本文以某1.9L直列四缸柴油机为例,通过有限元分析零件的实际失效状态,从而找到曲轴断裂的根本原因,并制定改进措施,为发动机设计人员分析曲轴断裂问题提供参考依据。

关键词：曲轴断裂有限元分析

Anti-microbial Activities of Protic Ionic Liquids Studied with Microcalorimetry Method

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Chemical Research in Chinese Universities 2011年第4期27卷 651-654页

作者： DING Yang-jun nie yi YU You College of Chemistry and Chemical Engineering Qufu Normal University Qufu 273165 P. R. China

The anti-microbial activities of seven protic ionic liquids（ILs） against Escherichia coli and Staphylococcus aureus were studied by a micro-calorimetric method at 310 *** bacterial growth rate constants were determined based on the bacterial growth power-time curves,andminimum biocidal concentrations were *** results indicate that the protic ILs studied show inhibitory activities on the bacteria,implying a potential eco-toxicity to the microorganisms in the water ***,the inhibition effect of ionic liquids is related to the structure of the cation and anion of protic *** type of proactive approach could aid in the assessment of the greenness of ILs to be used in the future.

关键词： Microcalorimetry Ionic liquid Escherichia coli Staphylococcus aureus Inhibitory activity

Regulating sulfur removal efficiency of fuels by Lewis acidity of ionic liquids

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Science China Chemistry 2016年第5期59卷 526-531页

作者： yi nie Yuxiao Dong Hongshuai Gao Xiangping Zhang Suojiang Zhang Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China College of Chemistry and Chemical Engineering Qufu Normal UniversityQufu 273165China

It is urgent to develop a new deep desulfurization process of fuels as the environmental pollution increases seriously. In this work, a series of Lewis acidic ionic liquids （ILs） [C43MPy]Cl/nZnCl2 （n=1, 1.5, 2, 3） were synthesized and used in extraction and catalytic oxidative desulfurization （ECOD） of the fuels. The effects of the Lewis acidity of ILs, the molar ratio of H2O2/sulfur, temperatures, and different substrates including dibenzothiophene （DBT）, benzothiophene （BT） and thiophene （TS）, on sulfur removal were investigated. The results indicated that [C43MPy]Cl/3ZnCl2 presented near 100% DBT removal of model oil under conditions of 323 K, H2O2/DBT molar ratio 6：1. Kinetics for the removal of DBT, BT and TS by the [C43MPy]Cl/3ZnCl2-H2O2 system at 323 K is first-order with the apparent rate constants of 1.1348, 0.2226 and 0.0609 h-1, and the calculated apparent activation energies for DBT, BT and TS were 61.13, 60.66, and 68.14 kJ/mol from 298 to 308 K, re- spectively. After six cycles of the regenerated [C43MPy]Cl/3ZnCl2, the sulfur removal had a slight decrease. [C43MPy]Cl/ 3ZnCl2 showed a good desulfurization performance under optimal conditions.

关键词： desulfurization Lewis acidity ionic liquids extractant catalyst

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硬头黄竹叶黄酮生物活性成分研究

中国调味品 2024年第10期49卷 194-198页

作者：罗田何义国陈雨唐正王艳宇聂一铭赵兴秀四川轻化工大学生物工程学院四川宜宾644005

该研究测定了宜宾硬头黄竹叶黄酮提取物中多糖、蛋白质、总酚、粗脂肪、挥发性物质等基本化学成分,探究了竹叶黄酮提取物中黄酮有效成分。结果表明,竹叶黄酮提取物中除黄酮外,还含有较多的糖类和酚类物质,通过HS-SPME检测出6种醛类(24.8... 详细信息

该研究测定了宜宾硬头黄竹叶黄酮提取物中多糖、蛋白质、总酚、粗脂肪、挥发性物质等基本化学成分,探究了竹叶黄酮提取物中黄酮有效成分。结果表明,竹叶黄酮提取物中除黄酮外,还含有较多的糖类和酚类物质,通过HS-SPME检测出6种醛类(24.87%)、3种酸类(18.13%)、4种酯类(13.87%)、5种酮类(32.31%)和1种酚类(7.92%)共20种挥发性物质;通过UHPLC-Q-TOF-MS检测出竹叶黄酮提取物中有609种物质,其中黄酮类化合物中共鉴定出43种,占比达60.6%,黄酮类物质中主要以异牡荆苷、异荭草苷为主。因此,该研究为竹叶黄酮生物活性成分的开发利用奠定了理论基础。

关键词：硬头黄竹竹叶黄酮成分研究生物活性

Controlled Teleportation Using Four-Particle Cluster State

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Communications in Theoretical Physics 2008年第9期50卷 633-636页

作者： LI Song-Song nie yi-You HONG Zhi-Hui yi Xiao-Jie HUANG yi-Bin Department of Physics Jiangxi Normal University Nanchang 330022 China

A controlled teleportation scheme is *** this scheme,quantum information of a single-qubit stateor an entangled two-qubits state is transmitted from a sender (Alice) to a receiver (Charlie) via a four-particle clusterstate under the control of the supervisor (Bob).The feature of this scheme is that the teleportation between the senderand the receiver depends on the control of the supervisor.

关键词： controlled teleportation cluster state

Quantum Information Splitting of an Arbitrary Three-Qubit State by Using Cluster States and Bell States

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Communications in Theoretical Physics 2011年第3期55卷 421-425页

作者： LI Yuan-Hua LIU Jun-Chang nie yi-You Department of Physics Jiangxi Normal University Nanchang 330022 China Key Laboratory of Optoelectronic ＆ Telecommunication of Jiangxi Province Nanchang 330022 China

A new application of cluster states is investigated for quantum information splitting （QIS） of an arbitrary three-qubit state. In our scheme, a four-qubit cluster state and a Bell state are shared by a sender （Alice）, a controller （Charlie）, and a receiver （Bob）. Both the sender and controller only need to perform Bell-state measurements （BSMs）, the receiver can reconstruct the arbitrary three-qubit state by performing some appropriately unitary transformations on his qubits after he knows the measured results of both the sender and the controller. This QIS scheme is deterministic.

关键词： quantum information quantum information splitting cluster states arbitrary three-qubit state Bell-state measurement

Effects of water content on the dissolution behavior of wool keratin using 1-ethyl-3-methylimidazolium dimethylphosphate

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Science China Chemistry 2017年第7期60卷 934-941页

作者： Zhenlei Zhang Xiaochun Zhang yi nie Hui Wang Shuangshuang Zheng Suojiang Zhang Key Laboratory of Green Process and Engineering Beijing Key Laboratory of lonic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemistry and Chemical Engineering University of Chinese Academy of SciencesBeijing 1000491 China Zhengzhou Institute of Emerging Technology Industries Zhengzhou 450000China

Ionic liquids(ILs) are eco-friend and recyclable solvents for dissolution of wool keratin, and water is often used as antisolvent to regenerate keratin from IL solution. To recycle the ILs, removing water is the necessary step. However, complete removal of the water is energy-intensive and costly. The water in ionic liquids would change the physicochemical properties and cluster structures of the IL and further affect its dissolution behavior on keratin. Here, 1-ethyl-3-methylimidazolium dimethylphosphate([Emim]DMP) was used for experiments due to its good performance on dissolving keratin. The experimental and simulation results showed that the dissolving capability of [Emim]DMP was decreased and the interactions between cation and anion became weaker with water concentration increasing. Furthermore, the dissolution time of wool keratin in [Emim]DMP increased with water content rising. At the same time, the effect of water in ILs on the secondary structure distribution and thermal stability of regenerated keratin was not obvious. In this work, by taking the structures of [Emim]DMP, keratin dissolution time and properties of the regenerated keratin into consideration, a balanced range of water content in [Emim]DMP was determined, which could not only reduce recycling cost but also not affect the dissolution behavior of the IL.

关键词： keratin ionic liquids water recycle

HPLC-DAD/FLD测定婴幼儿配方奶粉中B族维生素及不确定度分析

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中国酿造 2024年第3期43卷 250-254页

作者：康翠欣周原梅蓉柳慧冰聂懿毛燕妮武汉食品化妆品检验所湖北武汉430040 国家市场监管重点实验室(食用油质量与安全) 湖北武汉430040

建立了高效液相色谱法同时测定婴幼儿配方奶粉中维生素B_(2)、烟酸、烟酰胺、吡哆醇、吡哆醛的方法。样品经1%甲醇的0.1%磷酸水溶液提取并沉降蛋白后,采用Thermo Hypersil GOLD^(TM)aQ(5μm,4.6 mm×250 mm)分离,以二极管阵列检测器(DAD... 详细信息

建立了高效液相色谱法同时测定婴幼儿配方奶粉中维生素B_(2)、烟酸、烟酰胺、吡哆醇、吡哆醛的方法。样品经1%甲醇的0.1%磷酸水溶液提取并沉降蛋白后,采用Thermo Hypersil GOLD^(TM)aQ(5μm,4.6 mm×250 mm)分离,以二极管阵列检测器(DAD)和荧光检测器(FLD)串联模式检测。同时构建了不确定度评定模型,考察了不确定度的来源。结果表明,维生素B_(2)、吡哆醇、吡哆醛在0.025~4.000μg/mL,烟酸、烟酰胺在0.125~20.00μg/mL范围内,标准曲线呈现良好的线性(R^(2)>0.999),加标回收率在93.20%~108.00%(n=6),相对标准偏差(RSD)<8%。当婴幼儿配方奶粉中烟酸、烟酰胺含量为4 mg/100 g时,其扩展不确定度分别为0.300 mg/100 g(k=2)、0.182 mg/100 g(k=2);当吡哆醇、吡哆醛、VB_(2)含量为800μg/100 g时,其扩展不确定度为100μg/100 g(k=2)、71.5μg/100 g(k=2)、41.9μg/100 g(k=2),其不确定度主要来源于标准溶液配制及标准曲线拟合。该方法简便、快速、灵敏、准确,可满足婴幼儿配方奶粉中B族维生素的检测要求。

关键词：婴幼儿奶粉 B族维生素高效液相色谱不确定度