Results 31 to 40 of about 7,445 (109)
Shuitu Baochi Xuebao, 2004 以黄壤作为供试土壤,种植重金属富集植物与非富集植物,采用室内培养方法对外加镍污染黄壤的微生物活性及其群落结构进行了研究。结果表明:较低浓度Ni有利于提高土壤微生物活性,当Ni浓度>100 mg/kg时供试土壤的微生物活性开始下降,其中微生物生物碳、氮量和基础呼吸随重金属浓度增加而明显下降,但种植重金属富集植物的土壤下降幅度明显低于种植非富集植物的土壤。结果还显示,镍严重污染破坏了土壤微生物区系,使土壤细菌、放线菌及真菌数量下降,其中放线菌对重金属毒性影响最为敏感 ...
陆引罡 黄建国 滕应 罗永水 王荣平 湛方栋
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT In conventional photoconductive detectors, the shared collection path for dark current and photocurrent imposes a fundamental compromise between noise suppression and signal responsivity. To break this trade‐off, we introduce a device architecture featuring a strategically integrated third electrode within a MAPbI3/Nb2CTx heterostructure. This
Yan‐Wei Lv +7 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Silicon–carbon composite anodes offer exceptionally high energy density, but their practical application is severely constrained by the structural instability and continuous evolution of the solid electrolyte interphase (SEI). In this work, moving beyond conventional LiF‐enrichment strategies, we propose a directional regulation approach based
Yao Liang +11 more
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Zhejiang Daxue xuebao. Lixue ban, 1999 建立了流动注射在线微柱预富集-火焰原子吸收(FAAS)法测定天然水中痕量镉的体系.在溶液pH7.2条件下，8-羟基喹啉-5-磺酸与Cd2+形成的络阴离子被填有阴离子树脂的微柱吸附而富集.用1mol/L硝酸溶液洗脱树脂上所吸附的镉.洗脱液在线输入FAAS测定.当采样速率为24次/时，富集倍数为10，检出限0.5μg/L，工作曲线线性范围0～100μg/L，RSD为1.0%(n=11,Cd2+浓度为100μg/L).本体系已用于天然水样中痕量镉测定，回收率90%～106%.
MaoXueqin(毛雪琴) +4 more
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Global Change Biology, Volume 32, Issue 7, July 2026.Grassland recovery following nutrient cessation is asymmetric and strongly shaped by nutrient enrichment history. Higher nutrient addition rates and longer enrichment duration caused larger departures from control conditions, with biomass recovering more rapidly than species richness over decadal timescales.
Miao He +8 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Bone restoration is often hindered by the spatiotemporal dysregulation of immune and regenerative signals. Conventional bio‐inert implants, providing only passive support, fail to modulate this microenvironment, leading to infections and poor healing.
Zhizhong Sun +8 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu +5 more
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酶法富集甘油酯型n-3 PUFA的研究进展Research progress on enzymatic enrichment of glyceride-type n-3 PUFA
Zhongguo youzhin-3多不饱和脂肪酸（n-3 PUFA）是人体生长和健康不可或缺的一类脂肪酸。然而，天然甘油酯中的n-3 PUFA含量较低，限制了其利用价值。随着食品、医药、母乳脂替代和保健品等行业对高含量n-3 PUFA需求的不断增长，富集n-3 PUFA甘油酯已成为研究热点。其中，酶法富集因高效、绿色环保等优势，受到研究者的青睐。旨在为绿色高效酶法富集甘油酯型n-3 PUFA的研究与应用提供理论指导，综述了酶法富集n-3 PUFA甘油酯中脂肪酶的筛选、酶法富集技术路线和反应体系优化的研究进展。酶法富集n-3 ...
吴留美1,2，张羽飞2，梁永霞1，郑明明1,2，黎冬明1 WU Liumei1,2, ZHANG Yufei2, LIANG Yongxia1, ZHENG Mingming1,2, LI Dongming1
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Wildlife Letters, Volume 4, Issue 2, Page 94-101, June 2026.Although once abundant across its range, gray foxes (Urocyon cinereoargenteus) are purportedly declining. While range maps indicate that gray fox potentially occur throughout the central United States, contemporary distribution maps are needed. We developed a Habitat Suitability Model for six states, leveraging gray fox presence data in an ensemble ...
Daniel J. Benson +4 more
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