Results 41 to 50 of about 5,427 (166)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu +8 more
wiley +1 more source
采用全国第二次土壤普查数据结合作者的实测数据,利用1∶100万土壤数据库对青藏高原土壤有机质层、土壤矿质层及整个剖面的土壤有机碳密度和土壤有机碳储量分别进行了估算。结果表明:青藏高原的平均土壤有机碳密度约为C7.2kgm-2,较前人的C8.01~19.05kgm-2全国平均土壤有机碳密度偏低。青藏高原总的土壤有机碳储量约为18.37Pg,其中有机质层土壤有机碳储量约占38.14%,矿质层土壤有机碳储量则占61.86%。中国科学院知识创新工程重要方向项目(KZCX3-SW-339-04 ...
周才平 +4 more
core
Porous Mn2O3@C Cathode With High Activity and Long Lifespan for Aqueous Zinc Ion Batteries
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Manganese‐based oxides are widely employed as cathode materials for aqueous zinc ion batteries (AZIBs) due to their low toxicity and high theoretical specific capacity. However, their inherent poor electrical conductivity, coupled with the dissolution of manganese into the electrolyte, often leads to structural degradation of the cathode.
Cheng‐Jie Yin +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 以中国科学院海伦农业生态实验站长期肥料试验区为研究平台,采用静态箱—气相色谱法原位测定CO2排放通量,进而估算出土壤有机碳矿化速率。秋季收获时测定玉米根系、凋落物、根际沉积碳和施用有机肥对土壤碳的输入量。从土壤有机碳输入和输出角度来研究黑土农田有机碳平衡与消长动态。结果表明,施用有机肥增加了土壤有机碳的输入量,但同时增加了土壤有机碳矿化输出量,从碳收支平衡的角度来分析,土壤有机碳呈现出增加趋势,年际间增加138 kg/hm2,0~20 cm耕层土壤有机碳含量增加了0.08 g/kg,占土壤有机碳含量的0.
乔云发 +4 more
doaj
Study on microbial community responses and dissolved organic matter (DOM) transformations in coastal surface seawater amended with sedimentary DOM in Xiamen [PDF]
, 2016 海洋沉积物是海水溶解有机质（Dissolvedorganicmatters，DOM）的重要来源。DOM作为海洋异养微生物生存的主要物质和能量来源，影响着微生物群落的结构，而微生物群落也同时影响着DOM的化学组成和最终命运。近年来，海洋沉积物DOM成为海洋生物地球化学领域的热点研究对象，但其生物可利用性一直存在争议，且沉积物DOM释放到上层水体后将如何影响微生物群落的结构也不清晰。为了研究沉积物DOM的生物可利用性，以及沉积物DOM与上层海水微生物群落之间的相互关系，本论文采集了厦门近岸沉积物表层DOM ...
周文楚
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Although magnetic carbon materials possess significant potential in the field of electromagnetic wave absorption (EWA) due to the synergistic effect of multiple attenuation mechanisms, the currently reported magnetic carbon EWA materials face some challenges, such as high cost, low yield, and easy agglomeration of the magnetic component ...
Bo Jiang +9 more
wiley +1 more source
A study of carbon fixation and proteomic analysis of a deep-sea Roseobacter bacteria [PDF]
, 2016 玫瑰杆菌类群（Roseobacterbacteriaclade）是海洋微型生物α-变形菌中红螺菌科的主要分支，在海洋中分布广泛、普遍存在，并参与海洋碳循环和硫循环。该类群系统发育相近，但具有非常丰富的形态和生理特征。玫瑰杆菌生活环境多样复杂，生存代谢方式受到环境的影响呈现多样化，并具有一定的灵活性。人们对分布在近岸、表层及深海沉积物的可培养的玫瑰杆菌已有相当认识，但处于深海这片广阔区域的玫瑰杆菌却少有分离及培养 ...
杨玉洁
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Sodium‐ion capacitors (SICs) offer high energy and power density with long cycle life, but developing kinetically compatible electrodes remains challenging. This work developed a simple and sustainable strategy to synthesize homologous carbon electrodes from the inner shells of durian husks (ISDH) for high‐performance SICs.
De‐Bing Yan +7 more
wiley +1 more source
On the dissolution of CaCO3 in seawater based on lab incubation experiments [PDF]
, 2016 作为地表系统最大的“活跃”碳储库，海洋吸收了大约30%人类排放的二氧化碳(CO2)。海洋通过溶解度泵和生物泵调节大气中的CO2浓度，生物泵包括有机碳泵和碳酸盐泵。其中，碳酸盐泵主要通过钙化生物主导的碳酸钙(CaCO3)生成、溶解和沉降实现，是海洋碳循环的重要组成部分。据估算，60-80%的CaCO3在溶跃面以上已经溶解。较多研究者认为是生物作用等非热力学控制的过程导致了饱和水体中CaCO3的溶解，并提出以下假设：海洋中聚集在CaCO3颗粒表面的微生物，通过呼吸作用释放CO2使CaCO3颗粒周围的pH降低，
魏雅雯
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Metal sulfide, as a type of lithium/sodium‐ion battery material, possesses merits such as high capacity and low cost. Nevertheless, it is prone to structural changes during the cycling process, leading to volume changes and affecting electrochemical performance.
Wenjin Qin +7 more
wiley +1 more source