Results 31 to 40 of about 3,119 (159)

不同污染类型河流沉积物的汞、铅、锌污染特征研究

open access: yesShuitu Baochi Xuebao, 2007
研究了葫芦岛市3条具有不同污染源类型河流的沉积物中Hg,Pb,Zn的分布特征,应用相关性、富集系数以及首次引人富集系数比(R)来表征不同污染类型河流沉积物重金属间的相对污染程度及来源。结果表明:源于氯碱厂Hg污染的五里河沉积物中Hg,Ph,Zn含量平均值分别超过区域沉积物背景值662,2.21,4.51倍;受锌冶炼厂废水污染的茨山河沉积物中Hg,Ph,Zn含量平均值超过区域沉积物背景值188863.89,123.6倍;受土壤污染的连山河沉积物中Hg,Pb,Zn含量平均值超过区域沉积物背景值10.43,2.
郑娜, 王起超, 郑冬梅, 张少庆
doaj   +2 more sources

Influence of Alkaline Earth Barium on the Microstructure, Corrosion Behavior, and Cytocompatibility of Biodegradable Zinc

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Biodegradable Zn‐based alloys are promising candidates for temporary implants, yet excessive Zn2+ release during degradation may induce cytotoxicity and adverse tissue responses. In this study, Zn‐xBa alloys (x = 0.1 wt%, 0.5 wt%, 1.0 wt% and 3.0 wt%) were developed to achieve controlled corrosion behaviors with improved biocompatibility.
Liu‐Dang Fang   +9 more
wiley   +1 more source

Emerging MBenes for Energy Technologies

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The escalating global demand for sustainable energy is driving the search for transformative materials that transcend the limitations of conventional systems. Two‐dimensional (2D) transition metal borides (MBenes) have recently emerged as a compelling class, distinguished by unique electronic structures, tunable surface chemistry, and ...
Yingrui Ding   +5 more
wiley   +1 more source

Harnessing Trace Elements: Novel Radiosensitization Strategies for Enhanced Cancer Radiotherapy

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Radiotherapy (RT) is one of the core methods of comprehensive cancer treatment. Globally, more than 40% of cancer patients rely on radiotherapy to achieve tumor control, cure or palliative relief. However, radiation resistance, immunosuppression and normal tissue injury limit its clinical application.
Yuhuan Zhang   +6 more
wiley   +1 more source

SE É FUTEBOL, É MASCULINO?

open access: yesSociologias Plurais, 2012
Comumente, em referência a atletas de futebol, evoca-se uma masculinidade tradicional (BONINO, 2008), definida como modelo social hegemônico. No presente artigo, refletir-se-á sobre a chamada "área reservada masculina" (MAGUIRE & DUNNING, 1997), considerada como relevante à manutenção das estruturas patriarcais. A partir de coberturas jornalísticas
openaire   +2 more sources

"A culpa é sua" [PDF]

open access: yesPsicologia USP, 2006
O artigo analisa a influência das concepções tradicionais da Psicologia nas falas de educadores e alunos sobre o fracasso escolar na atualidade. Para tanto, faz uma breve revisão da psicometria e da teoria da carência cultural como representantes da concepção ideológica que centra no indivíduo e no "ambiente" as causas do fracasso.
Asbahr, Flávia da Silva Ferreira   +1 more
openaire   +4 more sources

A study on the absorption of cadmium and zinc in the water sediments with submerged plants(沉水植物对受重金属镉、锌污染的水体底泥的修复效果)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
为了探究常见沉水植物对水体底泥中重金属污染的富集效果,选取浙江水域较为常见的3种沉水植物苦草(Vallisneria natans (Lour.) Hara)、黑藻(Hydrilla verticillata (Linn. f.) Royle)、金鱼藻(Ceratophyllum demersum L.),在模拟天然水体环境中,将3种沉水植物培养在含有重金属Cd、Zn的底泥中生长一个生活周期.依据沉水植物对重金属Cd、Zn的富集量和生物-沉积物生物富集因子(biota-sediment ...
QIAOYunlei(乔云蕾)   +4 more
doaj   +1 more source

Synergizing Multi‐Chemisorption Sites and Micropore Confinement in Porous Carbon for High‐Performance Zinc‐Ion Hybrid Capacitors

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Aqueous zinc‐ion hybrid capacitors (ZICs) bridge the gap between high‐energy batteries and high‐power supercapacitors, yet their performance is fundamentally bottlenecked by the micropore confinement effect in carbon cathodes, which restricts hydrated Zn2+ transport and active site utilization.
Qian Li   +12 more
wiley   +1 more source

NÃO É IDEOLOGIA, É LEI

open access: yesDiversidade e Educação
O artigo tem como objetivo fornecer subsídios legais para os/as educadores/as enfrentarem os desafios impostos por um contexto sociopolítico reacionário, promovendo práticas pedagógicas que valorizem a diversidade, os direitos humanos e a igualdade de gênero na escola.
Gabriela Bieger Reyes   +2 more
openaire   +1 more source

粘胶纤维生产废水处理工程介绍

open access: yesGongye shui chuli, 2000
介绍了丹东化纤工业公司粘胶纤维生产废水的水质特点、处理工艺、主要构筑物及技术参数。该系统采用了曝气吹脱除硫化物—石灰乳中和除锌—活性污泥法去除有机物的物化—生化两级处理工艺,处理效果良好,出水中各项指标均达到国家规定的污水排放标准。
李亚峰, 黄迎春
doaj   +2 more sources

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