Results 31 to 40 of about 10,132 (156)

High‐Performance Sodium‐Ion Capacitors With Kinetics‐Matched Characteristics Enabled by N/O/S‐Doped Homologous Carbon Electrodes Derived From a Single Precursor

open access: yesRare 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

Achieving Crack‐Free Laser Powder Bed Fusion of AlxFeCoCrNi Alloys With B2‐Decorated Substructures via Low‐Al In Situ Alloying

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The B2 phase is a critical strengthening constituent in AlxFeCoCrNi high‐entropy alloys (HEAs), and introducing such phases onto the nanoscale cellular substructures is an ideal pathway for strengthening alloys fabricated by laser powder bed fusion (L‐PBF).
Xiangjian Zhu   +5 more
wiley   +1 more source

生物质炭对邻苯二甲酸二丁酯污染土壤黄瓜幼苗生理特性的影响

open access: yesShuitu Baochi Xuebao, 2019
通过模拟试验,研究利用生物质炭改善邻苯二甲酸二丁酯(DBP)污染土壤对黄瓜幼苗生理特性的影响。试验设计4个生物质炭处理(CK、C 0.5%、C 1%、C 2%)和3个DBP浓度梯度(0,20,40 mg/kg)。结果表明:DBP污染土壤施入生物质炭,在低含量(C 0.5%)时黄瓜幼苗细胞膜稳定性增强,较高含量(C 1%和C 2%)时细胞膜稳定性与对照基本一致;生物质炭的施入显著增强了黄瓜幼苗SOD活性,降低了CAT活性和光合色素(叶绿素a、叶绿素b、叶绿素a+b和类胡萝卜素)含量 ...
李贞霞   +7 more
doaj  

High nitrogen enrichment buffers plant photosynthesis against herbivory damage

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 229-238, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivorous insects and nitrogen deposition are key drivers of ecosystem productivity under global change. However, their combined effects on plant photosynthesis, particularly during insect outbreaks, remain poorly understood in natural ecosystems.
Yongqiang Zhang   +6 more
wiley   +1 more source

河套灌区玉米光合特征及产量对全膜覆盖下不同滴灌量的响应

open access: yesShuitu Baochi Xuebao, 2017
通过大田试验,探讨了全膜覆盖下不同滴灌量对河套灌区玉米关键生育时期光合特征、产量和水分利用效率的影响。结果表明:(1)除拔节期外,高、中滴灌量处理下玉米叶片净光合速率、蒸腾速率和气孔导度均显著高于低滴灌量处理(P<0.05),而高滴灌量与中滴灌量处理之间无显著差异;(2)低滴灌量处理下的玉米叶片光合水分利用效率在其他生育时期均显著高于高滴灌量处理(P<0.05),并且高滴灌量处理下玉米光合水分利用效率在拔节期显著高于其他生育时期;(3)不同滴灌量下,玉米叶片净光合速率、蒸腾速率 ...
姜良超   +4 more
doaj  

伴有高血压的原发性IgA肾病患者临床与病理特点分析

open access: yesZhongguo shiyan zhenduanxue, 2020
IgA肾病(IgAN)是1968年由法国学者Berger和Hinglais首先描述和命名的,其病理特征是光镜下常见弥漫性系膜增生或局灶节段增生性肾小球肾炎,免疫荧光可见系膜区IgA或以IgA为主的免疫复合物沉积,因此也称为Ber-ger病(Berger’s disease)[1]。IgAN可以发生在任何年龄,但80%的患者在16-35岁之间发病,
林萍, 高莹莹, 卞淑芬
doaj  

Vulnerability of tropical fish communities across depth in the central Indian Ocean

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Coral reefs and their fish communities below scuba diving depth (>30 m), in mesophotic coral ecosystems (MCEs) (∼30–150 m), in rariphotic (150–300 m), and in upper bathyal waters (300–500 m) are often underexplored, especially in the Indian Ocean.
Paris V. Stefanoudis   +12 more
wiley   +1 more source

镉胁迫对龙葵镉的吸收积累及生理响应的影响

open access: yesShuitu Baochi Xuebao, 2017
为揭示镉(Cd)富集植物龙葵的Cd吸收、积累与光合生理特性间的相关性,采用室内盆栽试验,在不同Cd添加水平下(0,2,5,10,20 mg/kg,分别记为Cd0、Cd2、Cd5、Cd10、Cd20),研究了龙葵对重金属Cd的吸收、积累特性及生理响应。结果表明:龙葵对Cd有极强的耐性,在Cd浓度为20.0 mg/kg的污染土壤中仍能正常生长;Cd≤10.0 mg/kg的污染土壤中龙葵对Cd的富集、转运系数均大于1;但Cd20处理龙葵对Cd的富集和转运能力显著下降。Cd在龙葵中的分布为地上部>地下部 ...
李志贤, 冯
doaj  

Review of additively manufactured zinc alloys by laser powder bed fusion for biomedical applications

open access: yesRare Metals, Volume 44, Issue 11, Page 8262-8291, November 2025.
Graphical abstract AbstractZinc (Zn) and its alloys have emerged as promising candidates for biomedical materials, owing to their controlled degradation kinetics, intrinsic biocompatibility, and the release Zn2+ ions which are known to promote bone regeneration and tissue healing.
Xuan Yang   +5 more
wiley   +1 more source

光栅折射率调制对光纤Bragg光栅特性的影响

open access: yesGuangtongxin yanjiu, 2009
文章基于耦合模理论,采用传输矩阵法数值分析了光栅折射率调制对光纤Bragg光栅(FBG)特性的影响。结果表明:随着折射率调制深度的加深,光栅的反射谱峰值波长发生蓝移,峰顶变得平坦;光栅时延的最小值发生在光栅的Bragg波长处;峰值反射率增大,峰值半宽(FWHM)呈线性变化。
李松柏, 邓涛, 吴加贵
doaj  

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