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2023 2

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2019 1

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中子衍射，磁相图，晶体结构 1

中性原子量子计算 1

光量子计算 1

几率 1

分布式量子计算 1

囚禁离子量子计算 1

扭率 1

拓扑量子计算 1

曲率空间 1

核磁共振量子计算 1

氧化锆量子点；电阻开关；存储器件；旋涂法 1

硅基量子计算 1

自旋波量子计算 1

超导量子计算 1

量子效应 1

量子测控系统 1

量子算法 1

量子计算 1

量子软件 1

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Synthesis of iron(II) complexes with asymmetric N

Wolfgang Bauer, Tanja Ossiander, Birgit Weber

《化学科学与工程前沿（英文）》 2018年第12卷第3期页码 400-408 doi: 10.1007/s11705-018-1753-4

摘要：

The synthesis of new Schiff base-like ligands with asymmetric substituents pattern and their iron complexes with pyridine as axial ligand is described. Two of the ligands and one of the iron(II) complexes were characterized by single crystal X-ray structure analysis. One of the the iron(II) complexes shows spin crossover behavior while the others remain in the high spin state. The influence of the reduced symmetry of the ligand on the properties of the complexes is discussed.

关键词： iron Schiff base-like ligands magnetism spin crossover X-ray structures

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investigation of aerodynamic performance influenced by circumferentially pre-swirling coming flow on the crossover

WANG Qikun, CHEN Kangmin

《能源前沿（英文）》 2007年第1卷第4期页码 435-440 doi: 10.1007/s11708-007-0063-5

摘要： Numerical investigation is implemented on aerodynamic performance inside the crossover and de-swirling cascade of a multistage centrifugal compressor. The emphasis is put on the aerodynamic performance influenced by the circumferent

关键词： aerodynamic investigation centrifugal de-swirling circumferent

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outdoor falls and road traffic injuries among children and adolescents in China: a time-stratified case-crossover

《环境科学与工程前沿（英文）》 2023年第17卷第9期 doi: 10.1007/s11783-023-1705-1

摘要：

● A study assessing the temperature-injury relationship was conducted among students.

关键词： Ambient temperature Fall Road traffic injury Student China

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Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective

《化学科学与工程前沿（英文）》 2022年第16卷第12期页码 1772-1781 doi: 10.1007/s11705-022-2197-4

摘要： Unlocking of the extremely inert C=O bond during electrochemical CO₂ reduction demands subtle regulation on a key “resource”, protons, necessary for intermediate conversion but also readily trapped in water splitting, which is still challenging for developing efficient single-atom catalysts limited by their structural simplicity usually incompetent to handle this task. Incorporation of extra functional units should be viable. Herein, a proton deployment strategy is demonstrated via “atomic and nanostructured iron (A/N-Fe) pairs”, comprising atomically dispersed iron active centers spin-polarized by nanostructured iron carbide ferromagnets, to boost the critical protonation steps. The as-designed catalyst displays a broad window (300 mV) for CO selectivity > 90% (98% maximum), even outperforming numerous cutting-edge M–N–C systems. The well-placed control of proton dynamics by A/N-Fe can promote *COOH/*CO formation and simultaneously suppress H₂ evolution, benefiting from the magnetic-proximity-induced exchange splitting (spin polarization) that properly adjusts energy levels of the Fe sites’ d-shells, and further those of the adsorbed intermediates’ antibonding molecular orbitals.

关键词： CO₂ electrolysis single-atom catalysts spin polarization proton dynamics in situ IR spectroscopy kinetic isotope effect

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几率波与量子效应的扭率问题

欧阳首承,李智兰,袁东升

《中国工程科学》 2005年第7卷第6期页码 1-6

摘要：

按曲率空间的扭率，对含有三阶非线性变量导数的Schrödinger变形等价程进行了数值分析，发现几率波的几率性原来是扭率的疏密流在特定条件下的准规则流，并为势场强度和粒子体元密度的相互作用与量子扭率效应项综合作用的结果；纯量子效应作用为非规则流。

关键词：扭率几率量子效应非线性不稳定曲率空间

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DyFe₁₁Ti磁结构及其自旋重取向的中子衍射研究 Article

Olivier Isnard, Eder J. Kinast

《工程（英文）》 2020年第6卷第2期页码 153-157 doi: 10.1016/j.eng.2019.11.009

摘要：

本文报道了通过中子粉末衍射探测DyFe₁₁Ti的磁结构及其热演化规律。使用了变温中子衍射技术来测量磁矩及其取向的温度依赖性。Dy和Fe磁矩以反向平行的方式形成亚铁磁性耦合，其2 K时的易磁化方向是基面(a, b)内的[110]轴。随着温度的升高，该磁结构先后经历了两次自旋重取向现象。低温下，Dy磁矩较大，达到9.7μ_B，而在200 K时磁矩迅速下降到7.5μ_B。在Fe 8i位置观察到了最大的Fe磁矩。尽管磁结构发生了很大的变化，但在研究的温度范围内ThMn₁₂型晶体结构一直保持不变。在第一阶段的自旋重取向温度（T_SR1）时，观察到了易磁化轴的急剧倾斜；易磁化轴与晶体c轴之间的夹角从2 K的90°减小到200 K时的约20°（其中c轴是200 K以上的易磁化轴）；同时Dy和Fe磁矩保持反向平行耦合。

关键词：中子衍射，磁相图，晶体结构

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基于均匀柱面透镜的紧凑型毫米波空气填充基片集成波导交叉电桥

耿淳,连继伟,丁大志

《信息与电子工程前沿（英文）》 2023年第24卷第9期页码 1366-1374 doi: 10.1631/FITEE.2200454

摘要：提出一种利用嵌入式均匀柱面透镜设计交叉电桥的新方法。与传统交叉电桥设计相比，该方法在空气填充的基片集成波导交叉腔内引入一个均匀柱面透镜，将入射波导向指定方向。根据射线追踪法，引入的均匀柱面透镜可以在不提高加工复杂度和面积的前提下，有效束缚从输入端传输到输出端的电磁波。详细阐述了该方法的工作机理，并通过电场分布进一步予以验证。利用空气填充基片集成波导技术，研制了工作在毫米波频段的二、三、四通道交叉电桥，验证了所提方法的可行性。同时引入过渡结构，便于实验测量。研究发现二、三、四通道空气填充基片集成波导交叉电桥仿真带宽分别为33%、14%和10%，其核心尺寸分别为0.74,λ,×0.74,λ,、1.43,λ,×1.43,λ,和1.90,λ,×1.90,λ,。最后，为进一步阐述本文方法的优势，将其与公开文献中的类似方法进行了比较。

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Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic matter in Huadian oil shale

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

《化学科学与工程前沿（英文）》 2021年第15卷第2期页码 363-372 doi: 10.1007/s11705-020-1944-7

摘要： A mixture of Pingdingshan lean coal and acid-treated Huadian oil shale was co-pyrolyzed in a drop-tube fixed-bed reactor in the temperature range of 300 °C–450 °C. To reveal the formation mechanism of the solid co-pyrolysis product, changes in some physicochemical properties were investigated, using analysis by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, pore analysis, thermogravimetry, and electron spin resonance. X-ray diffraction showed that the lattice plane spacing for the co-pyrolyzed mixture decreased from 0.357 nm to 0.346 nm and the average stacking height increased from 1.509 nm to 1.980 nm in the temperature range of 300 °C–450 °C, suggesting that pyrolysis treatment increased its degree of metamorphism. The amount of oxygen-containing functional groups and pore volume decreased with increasing temperature. Thermogravimetry and electron spin resonance results showed that synergistic effects occurred during the co-pyrolysis process. A formation mechanism for the solid product was proposed. Hydrogen-rich radicals generated from the pyrolysis of the oil shale were trapped by hydrogen-poor macromolecular radicals of the intermediate metaplast produced from coal pyrolysis, thereby increasing the yield of solid product.

关键词： co-pyrolysis coal oil shale electron spin resonance mechanism

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氧化锆量子点用于非易失性电阻式随机存取存储器 Regular Papers

Xiang-lei HE, Rui-jie TANG, Feng YANG, Mayameen S. KADHIM, Jie-xin WANG, Yuan PU, Dan WANG

《信息与电子工程前沿（英文）》 2019年第20卷第12期页码 1698-1705 doi: 10.1631/FITEE.1900363

摘要：提出一种利用氧化锆量子点作为有源层的非易失性电阻式随机存取器。通过旋涂法制备Ag(上)/ZrO2(有源层)/Ti(下)典型的三明治结构存储器件。该优化器件具有较高高/低电阻差（约10 Ω），良好循环性能（循环数大于100），较低转化电流（约1 μA）。通过原子力显微镜和扫描电子显微镜观察ZrO2有源层表面形貌和堆积状态。实验结果表明，ZrO2有源层紧密堆积，且由于ZrO2量子点分布均匀，ZrO2有源层粗糙度较低（Ra=4.49 nm）。分析了Ag/ZrO2/Ti器件导电机理，并研究银离子导电丝和氧空位对电阻开关记忆行为的影响。该研究为忆阻器材料开发提供了一种简单方案。

关键词：氧化锆量子点；电阻开关；存储器件；旋涂法

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量子计算研究现状与未来发展

李晓巍,付祥,燕飞,钟有鹏,陆朝阳,张君华,贺煜,尉石,鲁大为,辛涛,陈济雷,林本川,张振生,刘松,陈远珍,俞大鹏

《中国工程科学》 2022年第24卷第4期页码 133-144 doi: 10.15302/J-SSCAE-2022.04.016

摘要： Silicon CMOS architecture for a spin-based quantum computer [J].Observation of parity-time symmetry breaking in a single-spin system [J].Experimental implementation of efficient quantum pseudorandomness on a 12-spin system [J].

关键词：量子计算量子算法量子测控系统量子软件超导量子计算分布式量子计算囚禁离子量子计算硅基量子计算光量子计算中性原子量子计算金刚石氮空位色心核磁共振量子计算自旋波量子计算拓扑量子计算