Results 41 to 50 of about 368,145 (166)
四川大学学报. 自然科学版, 1997 研究了电阻炉生长的Ｎｄ∶ＹＡＧ晶体中色心的吸收光谱、激发光谱和发射光谱以及热处理和辐照对光谱特性的影响．分析了色心形成的机理．用含色心的Ｎｄ∶ＹＡＧ棒做激光实验，观察到超辐射输出．
张邦星, 王化莹
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The electrocatalytic co‐reduction of CO2 and nitrate (NO3− ${\text{NO}}_{3}^{-}$) to synthesize urea presents a sustainable alternative to traditional industrial processes, yet its efficiency is fundamentally limited by the kinetically mismatched activation and coupling of CO2 and NO3− ${\text{NO}}_{3}^{-}$.
Jiayu Liu +9 more
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Guangtongxin yanjiu, 1996 介绍了傅立叶交换光萤光谱测试的基本原理；报道了用ＰＬ６１２０设备测得的一些典型的异质结构材料光萤光谱；分析和讨论了光萤光双峰结构、光萤光谱异常温度特性等问题；指出了异质界面上原子排列无序和内应力是造成这些异常现象的物理原因。
丁国庆
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Dual‐Layer Solid Electrolyte Interphase Enables Effective Suppression of Lithium Dendrites
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The heterogeneous solid electrolyte interphase (SEI) at the Li metal anode often leads to slow and uneven Li+ flux, causing severe Li dendrite growth. Herein, we combine X‐ray photoelectron spectroscopy and cryogenic transmission electron microscopy to demonstrate that a dual‐layer SEI, consisting of an inorganic inner layer and an organic ...
Huaping Wang +4 more
wiley +1 more source
, 2014 本实用新型涉及一种透射式光栅光谱仪，可以将光分成光谱进行记录和输出。光谱仪包括入射狭缝，准直透镜，光栅，聚焦透镜，反射镜，光电转换装置。光谱仪准直透镜和聚焦透镜的使用采用共光轴光路方式，在较短波长范围内，色差和像差影响小，光谱分辨率高，通光效率高，杂散光少，调节方便，结构稳定。适用于固定激发波长的拉曼光谱测试 ...
黄保坤 +3 more
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野生动物学报, 2019 利用衰减全反射红外光谱技术，对赛加羚羊等3个物种共49份相关样本进行检测、分析并计算其相关系数，结果：同支羚羊角壳不同取样部位红外光谱相关系数为96.69%—99.43%；不同羚羊角壳相同取样部位红外光谱相关系数为94.24%—99.43%；不同物种角质壳红外光谱相关系数为99.28%—99.47%；羚羊角壳与其骨质芯混合物红外光谱随角骨比例变化，骨质成分越多，其红外光谱与羚羊角壳红外光谱的相关系数越低。由此推断红外光谱因取样部位、个体及物种不同而产生差异，且个体间和取样部位差异甚至大于种间差异 ...
刘闯李超金煜
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen +10 more
wiley +1 more source
, 2013 本发明涉及一种编码孔径光谱成像仪的光谱图像复原方法，包括以下步骤：步骤1]组装编码孔径光谱成像仪：步骤2]给数字微镜器件DMD进行二维编码：步骤3]调整单色仪：步骤4]对编码孔径光谱成像仪进行定标，并将定标结果进行记录：步骤5]采集二维编码背景图像：步骤6]采集编码图像：步骤7]对步骤6]得到的二维编码目标图像做处理：步骤8]光谱图像复原：本发明解决了现有的光谱成像仪都存在的时间扫描或空间扫描问题，应用本本发明方法具有一定的普遍适用性，可以用于编码孔径光谱成像仪中的许多编码模板的光谱复原 ...
李然 +5 more
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四川大学学报. 自然科学版, 1998 以Ｈｇ光谱为标准，采用光学多道分析器光栅多色仪的多点定标方法，对可见至近红外区域（０．４～１．１μｍ）范围的光谱进行了波长标量，并对Ｎｅ，Ｈ２及激光二极管光谱进行了实际测量，其中对Ｎｅ用四点标定的误差不大于０．３８ｎｍ．
靳丽红 +3 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The development of high‐performance, self‐powered ultraviolet photodetectors (UVPDs) is crucial for the practical application of low‐power‐consumption optoelectronic devices. However, achieving both broad‐spectrum detection and high sensitivity remains a challenge.
Ping‐Xian Feng +6 more
wiley +1 more source