Results 11 to 20 of about 885,593 (162)
慢性肺阻塞性疾病患者血清磷、血管内皮生长因子及成纤维细胞生长因子23水平分析
Zhongguo shiyan zhenduanxue, 2022 目的 探讨慢性肺阻塞性疾病患者血清磷、血管内皮生长因子及成纤维细胞生长因子23水平的相关性。方法 回顾分析武汉市红十字会医院收治的88例COPD患者为研究对象，其中稳定期58例，急性期30例。选择同期60例健康体检者为对照组，采用全自动生化分析仪检测血清磷水平，采用Elisa法检测患者的VEGF水平和FGF-23水平，并行相关性分析。结果 与对照组比较，稳定期组和急性期组患者的血清VEGF以及FGF-23水平明显高于对照组 ...
王茜, 彭金燕
doaj
Dimensional Assembly Engineering of Ce‐MOF Interfaces for Selective Recognition of Phytic Acid
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Selective molecular recognition is central to chemical sensing yet discriminating structurally similar molecules at complex interfaces remains challenging. Traditional strategies based on tuning size, charge, or binding‐site chemistry often suffer from limited flexibility.
Qiang Miao +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2020 套种是杉木人工林经营的重要措施，磷是南方森林生态系统中主要限制性养分元素之-，但套种模式对土壤磷素的影响尚不明确。以亚热带杉木人工林表层（0—10 cm）土壤为对象，研究套种林（杉阔套种幼林、杉阔套种成熟林）和杉木幼林土壤理化性质和土壤各形态磷含量差异，分析套种对杉木人工林土壤磷含量的影响。结果表明：（1）不同套种林显著改变土壤总磷、土壤总无机磷、土壤总有机磷、土壤微生物生物量磷（MBP）和土壤酸性磷酸酶活性（APA），大小顺序均为杉阔套种成熟林＞杉阔套种幼林＞杉木幼林。（2 ...
陆宇明 +7 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Driven by global energy transition and sustainability, sodium‐ion batteries (SIBs) have emerged as key alternatives to lithium‐ion batteries for low‐to‐medium energy storage, because of abundant sodium resources and low cost. However, their commercialization is hindered by the lack of anodes with high capacity, fast kinetics, and long‐term ...
Shuang‐Lin Cai +13 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Constructing a porous scaffold with the essential features of natural cancellous bone, including structural architecture and biochemical cues, is one of the pivotal factors for effective bone regeneration. In this study, a biomimetic composite porous Gelatin fibrous scaffold (SrHA/Gelatin) incorporating ultralong strontium‐doped hydroxyapatite
Yin‐Chuan Wang +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Efficient and durable bifunctional electrocatalysts are vital for scalable water electrolysis. Here, we realize cobalt‐vacancy (Covac) engineering in CoFeP supported on N,P‐codoped carbon nanocages (Co1‐vacFeP/NPC) through a simple route comprising a CoFe Prussian blue analog precursor, phosphidation–pyrolysis, tannic‐acid etching, and a ...
Yuan‐Liang Yuan +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2005 在酸性红壤上，土壤有效磷含量低，大部分磷以难溶性磷形式存在，这是影响作物生产的重要限制因素之一。作物根分泌物活化难溶性磷的能力对改善其磷素营养具有重要意义。本文系统研究了大豆根分泌物对难溶性铝磷的活化效果，同时运用阴、阳离子交换树脂将根分泌物分成阴离子组分、中性组分和阳离子组分，活化结果表明．阴离子组分对铝磷的活化量显著高于中性组分和阳离子组分。运用分子膜把根分泌物分成大于8K、8～3．5K、3．5～1K和小于1K组分．发现对铝磷活化量最大的组分为小于1K根分泌物组分。另外 ...
沈宏 菊井森士 严小龙 松本英明
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
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
wiley +1 more source
Shuitu Baochi Xuebao, 2004 采用顾、蒋提出的无机磷分级方法,对吉林省黑土进行了无机磷形态组成的研究。结果表明:供试黑土中60%～80%左右的磷以无机磷形式存在,其组成如下:O-P(16.25%～61.0%)>Fe-P(11.42%～38.63%)>Ca10-P(11.66%～34.48%)>Al-P(8.71%～23.77%)>Ca2-P(5.17%～22.51%)>Ca8-P(1.81%～27.19%)。利用相关分析和通径分析相结合的方法,研究比较了各组无机磷对有效磷的相对重要性,它们依次是:Ca2-P>Al-P>Fe-P ...
王艳玲 王杰 赵兰坡 蔡洪光
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