Results 21 to 30 of about 16,407 (113)
A study on the painting pigments from the cave of Kizil Grottoes(克孜尔石窟壁画颜料研究)
Zhejiang Daxue xuebao. Lixue ban, 2022 采用扫描电子显微镜X-射线能谱（SEM-EDS）、拉曼光谱（Raman spectra）和傅里叶红外光谱（FTIR）对收集自克孜尔石窟第69窟的14个壁画颜料样品进行检测与分析鉴定。结果显示：蓝色颜料为青金石；绿色颜料主要为氯铜矿，在表面泛黄的绿色样品中检出了藤黄；红色颜料为赤铁矿；在白色颜料样品中检出了磷氯铅矿-砷铅矿和石膏；在灰色颜料样品中检出了石膏与炭黑。表明初唐时期藤黄已被用作绘画颜料；在矿物颜料上罩染有机染料，体现了古人对矿物颜料和有机染料的高超使用技巧。研究有助于了解壁画的用材 ...
ZHOUZhibo(周智波)
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Interface Issues of Inorganic Solid‐State Electrolytes in Secondary Magnesium Batteries
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Solid‐state magnesium batteries (SSMBs) have gained significant attention as promising candidates for next‐generation safe energy storage systems because of the abundance of magnesium (Mg) in the earth's crust, superior energy density, and inherent nonflammability.
Jiren Wang +9 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The past decade has witnessed a burgeoning demand of metals for global industrial development and infrastructure. Meanwhile, the depletion of mineral resources and the environmental damage caused by wastewater discharges pose significant threats to both economic and ecological sustainability. Fortunately, metal‐containing wastewaters also hold
Fei Zhang +6 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
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Shuitu Baochi Xuebao, 2002 用张力计法测量了黄白土的持水特性及施用有机物料对其保水和供水性能的影响。结果表明 :(1 )在张力计测定范围内 ,黄白土土壤水吸力与含水量之间表现出显著的线性相关。(2 )施用有机物料 ,可以提高土壤的保水性能。其中施用牛粪的效果要优于麦秸。施用有机物料 ,还可以提高土壤速效水的上限 ,降低速效水的下限 ,提高速效水的含量 ...
汪建飞 李粉茹 金德胜
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Shuitu Baochi Xuebao, 2005 通过对红壤旱地连续13年定位监测研究,发现在红壤旱地长期坚持有机肥料与无机肥料配合施用,土壤有机质含量逐步提高,土壤有机质从开始的11.5g/kg上升到24.3g/kg,增加的有机质以易氧化的有机质为主,稳定性高的有机质较少。红壤长期施用化学磷,明显提高土壤有效磷含量,土壤供磷性能大为改善,施用有机肥料能减少土壤对磷的固定,提高磷肥的有效性和利用率。红壤长期施用单一化学肥料,土壤明显酸化,土壤交换性氢铝显著增加,作物生长变差,产量降低。施用有机肥料,明显降低土壤交换性氢铝含量,增加土壤养分 ...
王伯仁 徐明岗 文石林
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Biomass‐derived quinones are promising green and sustainable cathode materials for sodium‐ion batteries (SIBs), yet their practical application is hindered by poor cycling stability due to dissolution in conventional electrolytes. Herein, we demonstrate that sodiumation is an effective strategy to enhance both rate capability and cycling ...
Xinyue Zhu +4 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Chemically self‐charging aqueous zinc‐ion batteries (AZIBs) have emerged as promising candidates for energy storage technologies owing to their environmental autonomy and structural simplicity. Nonetheless, the self‐charging performance is significantly compromised by the limited potential difference between cathodes and oxygen, as well as the
Yan Wang +5 more
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Shuitu Baochi Xuebao, 2017 为探讨施用有机物料后不同作物根系土壤腐殖质各组分含量和胡敏酸元素组成的变化情况，以吉林农业大学试验田培肥2 a的黑土为研究对象，试验选取3种作物（玉米、大豆、白菜），每种作物设4种施肥处理，包括化肥（CK）、玉米秸秆配施化肥、树叶配施化肥和鸡粪配施化肥。采用腐殖质修改法提取水溶性物质(WSS)、胡敏酸（HA）、富里酸（FA）、胡敏素（HM），利用重铬酸钾外加热法测定腐殖质各组分有机碳含量，采用分光光度计法测定HA和FA的光学性质，通过光密度E4/E6值和元素组成分析HA的结构变化。结果表明：土壤总有机碳（
王 维 +6 more
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Shuitu Baochi Xuebao, 2020 在四川丘陵区紫色土上进行田间试验，以无物料还田为对照，对比分析了蚕豆秸秆、油菜秸秆、猪粪3种物料还田对夏玉米吐丝期和收获期0—20，20—40 cm土层土壤有机碳、全氮、微生物量碳氮含量及微生物熵的影响，以期为农业废弃有机物料的综合利用及四川丘陵区土壤质量的提升提供理论参考。结果表明：（1）尽管有机物料还田于0—20 cm土层中，0—20，20—40 cm土层土壤有机碳（SOC）、全氮（TN）、微生物量碳（SMBC）、微生物量氮（SMBN）含量均受到有机物料的深刻影响。各处理0—20 cm土层SOC ...
周元 +7 more
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