电—声相互作用对金属氢磁性的影响

本文运用Hirsch的自旋—极化铁磁理论，并考虑了电—声相互作用对单中心、双中心以及电子有效质量的修正后，讨论了金属氢在T=0K时的自发磁化强度随晶体的Wigner-Seitz半径rs的变化。结果指出：金属氢的自发磁化强度ms≠0的区域随参数ρ的增大而收缩，但ms的值不一定比未考虑电—声相互作用时的值小。     

析氢对Zn-Ni电沉积机理的影响

Zn-Ni电沉积表现出典型的异常共沉积行为,即电极电位负的Zn2+更容易还原析出 以常用的氯化物体系作为研究对象,用动电位(电流)扫描、电流阶跃、常规脉冲极谱等方法,并结合非水溶剂试验对Zn-Ni合金电沉积过程进行研究 结果表明,Zn-Ni异常电沉积的动力学原因是:由于H+还原析出、阴极扩散层pH升高,导致Zn2+水解生成Zn(OH)2,Zn(OH)2胶体在阴极上吸附阻滞了Ni2+的还原过程,而Zn2+则可以Zn(OH)n(2-n)+形式直接放电     

Rashba多量子阱异质结中自旋轨道耦合效应对电子输运的影响

根据量子相干输运理论,利用传递矩阵的方法,研究自旋电子在铁磁体（F）／半导体多量子阱（SWM）／铁磁体的一维结构中,考虑自旋轨道耦合效应时的量子相干输运的特性．通过计算发现在这种一维多量子阱结构中的自旋电子的输运特性发生了一定的变化．这有利于进一步提高自旋电子的隧穿系数和自旋极化率．     

自旋轨道相互作用对负宇称重子混合角的影响

通过对单交换势(OPE)结构的重新分析,并考虑自旋轨道相互作用的影响,得到的负宇称重子混合角与实验结果吻合.     

pH值对电沉积NiFe合金形貌及析氢性能的影响

采用电沉积方法制备了NiFe合金。通过x-射线衍射（XRD）、场发射扫描电镜（SEM）、线性扫描和Tafel曲线等测试手段研究了合金相组成、表面形貌及电化学析氢性能。研究结果表明,镀液pH值对NiFe合金相组成、表面形貌和电化学析氢性能有较大的影响。当镀液pH值为6．19时,NiFe合金为纳米自组装的花状多孔结构,其电化学析氢性能好。     

乙炔中的π键与卤化氢相互作用的理论研究

采用从头计算理论,对C2H2中的π键与HX（X=F,C1,Br,I）形成的典型X-H…π键复合物进行了系统的研究．对复合物几何结构进行了优化,计算各体系的结合能和BSSE,并对计算结果在几何结构、电荷分布及静电势和能量上进行分析．研究结果表明,C2H2…HX（X=F,Cl,Br,I）复合物体系随着卤素原子序数的递增,键长等参数都出现了周期性增加,复合物的结合能在整体上呈现减小的总趋势,与之对应的X-H…π相互作用减弱．     

电-声-热多参数联合测试系统开发

讨论了国内外典型水合物模拟装置中的测试系统、测试方法以及存在的问题,开发了新型的电声复合传感器以克服现有传感器测量区域不一致的问题,开发了阻抗谱测量技术以全面刻画被测介质的电学特性,开发了测试系统软件、实现"分时轮流"的传感器激励与数据采集工作模式、信号处理算法、物性参数计算方法和数据保存功能,最终形成了一套电-声-热多物理参数多点同步联合测试系统,能够获得水合物合成分解过程的多物性参数数据,为各类不同用途的天然气水合物模拟实验装置的开发提供了有益的借鉴。     

金属氢的相关技术及发展前景

本文介绍了金属氢的性质及若干制取方法,同时对金属氢未来在诸多领域的发展前景进行展望,指出了化学方法是制取金属氢的一种切实可行的全新思路。     

对辐射场通过自旋相互作用发射光子的探讨

本文对辐射场依赖自旋相互作用发射光子的理论进行了深入探讨,作为特例计算出依赖自旋相互作用氢原子2S态的寿命,从而说明在辐射量子理论中忽略电子自旋相互作用的原因。     

金属磷化纳米材料作电解水析氢的研究现状

氢能是21世纪最具有发展潜力的清洁能源,产生氢能既简便又有效的方法就是"电解水析氢"。本文简述一种新的电解水析氢材料——金属磷化物纳米材料,介绍了几种金属磷化物纳米材料的合成方法以及目前用它来作电解水析氢材料的研究现状。     

运行参数对PSA煤气制氢工艺的影响

PSA煤气制氢工艺中,顺放时间,顺放量,终统量等运行参数对氢气的产量和质量有一定的影响。上述参数的调整,对更有效地使用PSA制氢装置起到相应的作用。     

限制李代数P-映射的重要性质及应用

本文利用文献【1～3】中限制李代数的P-映射的一些已有性质，获得了P-映射的一些其它重要性质，并且利用这些性质证明了文献【4】中的限制李代数的一个猜想在代数闭域条件下是成立的。     

论公元前1600年至前1100年东地中海世界的战争

公元前1600—前1100年的古代东地中海世界战争,因决定战争胜败的关键是神的意志,而带有浓厚的宗教色彩。虽然这一时期的战争大都打着弹压叛乱的旗号,但是其本质却是为争夺势力范围的非正义的争霸战争。在频繁且规模宏大的战争中,一些规范各参战国军事行为的战争准则业已形成,从而为通过战争重新构建世界秩序提供了先决条件。纵观古代东地中海世界的战争发展,它大体经历了三个发展阶段,即以争夺生存空间、掠夺财富为目的的原始部落战争,以服人为目的战争和以兼并为目的的战争。公元前1600—前1100年的战争已经发展到以服从为目的的第二阶段。     

The Effect of Social Influences and General Metacognitive Knowledge on Metamemory Judgments

This study investigated whether social information can affect Ease-of-Learning (EOL), Judgments-of-Learning (JOL), and Feeling-of-Knowing (FOK) and their accuracy. Participants first learned associated word pairs and made the above-mentioned judgments. They were later divided into two groups of metacognitive ability in order to assess if they had been affected differently by the social cues, which consisted of information about previous performances of college students. Results revealed that the magnitude of the metamemory judgments assessed was significantly affected by the social cues and that participants with a Low level of metacognitive ability were more influenced than those with High metacognitive ability. Concerning accuracy, however, only the recall accuracy of JOL judgments was affected. Further, different patterns of influence across the three judgments were observed for the two ability groups. Results and educational implications were discussed.     

氢原子角动量量子化模型的可视化

量子力学发展史上最突出的成就之一是对氢原子光谱和化学元素周期律给予了相当满意得解释。氢原子理论,通过Schrodinger方程可以严格求解,还是了解复杂原子及分子结构的基础。文章基于Matlab,根据氢原子薛定谔方程的结论,建立角动量空间量子化模型,使抽象的内容形象化,加强物理模型实质讲解、激发学生学习兴趣、提高教学质量具有非常重要的作用。     

The Relative Contributions of Word Identification Skill and Comprehension-Monitoring Behavior to Reading Comprehension Ability

Ninety-five fourth-grade children completed measures of reading comprehension, word identification, and several aspects of comprehension-monitoring behavior. Correlations indicated that word identification was the strongest predictor of reading comprehension. However, hierarchical regression analysis indicated that after the effects of word identification were partialed, comprehension-monitoring behavior explained significant additional variability in reading comprehension. Subgroup analysis indicated that the effect of comprehension-monitoring behavior was strongest among those students whose word-analysis skills were less well developed. Results were interpreted as suggesting that comprehension-monitoring strategies can be used to compensate for weaknesses in word-identification skills.     

线路规划中优化调整的次序

为了实现寻求最短规划树的优化迭代，给出了通用的局部调整方法，建立了一系列调整量计算公式，指出了适当安排A型调整次序的重要作用，并从最大调整量原则出发。构造出以独立调整序列为基础的批量速降算法。文章对典型的线路结构进行了算法实施与论证，同时提供了缩减运算量的简化措施。     

SPC技术在供方产品质量控制中的应用

目前，企业对供方产品质量的控制主要依靠入厂检验，这种事后检查的方法忽视了对供方生产过程的改进。本文介绍了SIC技术，并探讨应用SIC技术对供方产品质量变异进行监控，对过程质量和过程发展趋势进行科学定性的分析和把握，从而可以达到过程失控预警、过程不断改进、过程能力不断提高的目的，保证供方产品质量的稳定和不断提高。继而降低企业入厂检验的风险和对供方进行有效控制的目的。     

不同Al源对LiBH4储氢性能的影响

以普通Al粉、LiAlH4和Li3AlH6作为Al源,分别与LiBH4进行球磨复合,通过对LiBH4/Al、LiBH4/LiAlH4和LiBH4/Li3AlH6复合物吸放氢过程的物相分析、放氢性能分析和吸氢性能分析,系统研究不同Al源对LiBH4储氢性能的影响,发现Li3AlH6分解提供的活性Al促进LiBH4放氢作用明显,并且其放氢产物的可逆吸氢动力学性能也最好。     

Students' Visualization of Metallic Bonding and the Malleability of Metals

This study investigated the mental representations of metallic bonding and the malleability of metals held by three male students aged 14–15 (Year 10) who were attending a Hong Kong school. One student was selected by their chemistry teacher as representing each of the highest, the medium, and the lowest level of attainment in chemistry in a school that admitted students of average general attainment. The students were interviewed and their understandings probed through their provision of drawings and their interpretation of the diagrams that had been previously used by their teacher. Dual coding theory was used to interpret the relative significance of visual and verbal input and the interaction between the two for their understanding. There was evidence that students relied on verbal recall in providing their initial understandings and showed an appreciation of the nature of the structural components of the electron-sea model of metallic bonding. However, they varied in terms of their appreciation of the electrostatic force which was responsible for the malleability of metals. The study suggests that a clearer understanding of the electrostatic force involved can be attained when students experience visual and verbal representations simultaneously, a conclusion supported by dual coding theory. Principles for good practice in using diagrams in teaching are discussed.