Results 11 to 20 of about 1,627,540 (134)
Zhongshan Daxue xuebao. Yixue kexue ban, 2014 摘 要: 【目的】 研究以钙磷为基础的含锌?氟离子矿化液对牙釉质理化性能的影响?【方法】 将因治疗需要而拔除的成人第三磨牙牙冠制作成牙釉质切片?分别以含不同浓度氟离子和锌离子的钙磷饱和矿化液处理牙釉质切片,分为处理组:CaP-ZnF? CaP-F? CaP-Zn?CaP组和双蒸水DDW对照组?采用扫描电镜?X 射线衍射仪和红外光谱仪,检测矿化液处理组和对照组牙釉质切片的表面特性?【结果】 扫描电镜观察到经矿化液处理后的牙釉质切片表面有聚集的微晶沉积?X 射线衍射仪分析牙釉质表层沉积的羟基磷灰石晶体显示 ...
谷海晶
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Zhongshan Daxue xuebao. Yixue kexue ban, 1981 一般认为氟化物的防龋机理之一,是由于氟离子与牙釉质表面的羟基磷灰石Ca5（PO4）3OH中的羟基发生交换反应: 由于氟离子与氢氧离子电荷相等,离子半径也非常接近,极易发生交换反应。生成氟磷灰石Ca5（PO4）3F有较强的耐酸性,故有防龋作用。如忽略磷、钙、羟基和氟离子以外的其他离子的作用,则氟-羟基磷灰石的组成为:
黎兰馨
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, 2006 本发明涉及一种等离子体增强裂解有机废弃物的方法，包括将固态、半固态、液态或气态的有机废弃物经前处理后，在等离子体炉中高温裂解，然后将裂解气体净化后二次燃烧，或是将裂解气体二次燃烧后再进行后处理净化。本方法电能消耗少、设备投资节省、运行成本低，运行稳定，操作简单 ...
吴承康, 魏小林, 盛宏至
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Prelithiation is effective for compensating active lithium‐ion (Li+) loss in silicon (Si)‐based battery electrode materials. However, owing to the dynamic growth of the solid electrolyte interface (SEI), capacity fading remains the biggest challenge for the industrialization of Si electrodes.
Wen‐Jie He +9 more
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A Multifunctional Reducing Molecular Dopant for 16% Efficient Tin Perovskite Solar Cells
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Although lead‐based photovoltaics have seen remarkable progress, tin‐based perovskite solar cells (Sn‐PSCs) continue to face challenges due to their limited power conversion efficiency and insufficient operational stability. The primary cause of this performance gap is the susceptibility of Sn2+ to oxidation, which promotes rapid defect ...
Xianyong Zhou +12 more
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Gongye shui chuli, 2007 采用中和—膜过滤法处理酸性含氟废水时,当中和池的pH在6～9范围时,处理后废水中的氟离子和金属离子不能稳定控制在上海市污水综合排放标准以内。经研究分析发现,提高中和池的pH在10.5时,可提高废水中氟离子及金属离子的去除率。在排放前回调pH,可使废水水质稳定达标排放。
傅秋生, 阎震, 谭明
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Aqueous vanadium dioxide (VO2)‐based smart thermal insulation coatings represent a viable strategy to decrease building energy consumption and advance sustainable development goals. However, the inherent instability and limited compatibility with polymer matrices of VO2 hinder its widespread application.
Xiuxian Zhao +9 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Transition metal‐based amorphous/crystalline (a/c) heterostructured catalysts have garnered significant attention due to their exceptional activity, stability, and cost‐effectiveness. However, the precise synergistic regulation of interfacial composition and phase states remains challenging.
Haoran Li +3 more
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Veterinary Dermatology, Volume 37, Issue 1, Page 103-110, February 2026.Background: Otitis externa with secondary bacterial or yeast infection is a common problem in small animal practice. Cold physical plasma (CPP) has been reported to have antimicrobial activity in vitro. Results: Ears treated additionally with CPP showed lower otic scores after 21 days compared to nontreated ears, although this difference was not ...
Ralf S. Mueller, Cosima Bouassiba
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, 2016 基于三(五氟苯基)硼烷作为电中性路易斯酸可以与氟离子形成较强的配位作用,将氟离子从水相萃取到有机膜相,能实现氟离子检测的原理,以三(五氟苯基)硼烷为离子载体、阴离子交换剂三十二烷基甲基氯化铵为阴离子位点,构建了聚合物敏感膜电位型氟离子传感器。使用该传感器对氟离子进行检测的线性范围为10~(-6.4)~10~(-3.4)mol·L~(-1),检出限为10~(-6.7)mol·L~(-1)。该氟离子敏感膜电极的选择性明显优于阴离子交换剂掺杂的聚合物膜电极,表明三(五氟苯基)硼烷可以作为有效的氟离子载体 ...
商国梁, 李龙, 秦伟
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