Results 41 to 50 of about 12,534 (113)
Ecology and Evolution, Volume 16, Issue 7, July 2026.This study reports the newly assembled complete mitochondrial genomes for three neritid snails from China: Smaragdia rangiana, Neripteron pileolus, and Vittina cumingiana. Our phylogenetic analyses not only resolved their evolutionary positions within the established two‐subfamily framework but also identified several mislabeled public sequences ...
Yiyong Rao +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT This study developed a metal–modified fluoroethylene vinyl ether (FEVE) organic coating on 6061 aluminum alloy, supported by a micro‐arc oxidation (MAO) pretreatment layer, to enhance corrosion resistance and antifouling performance in marine environments.
Chang Liu +5 more
wiley +1 more source
Neural network modeling of salinity in Qiantang Estuary(钱塘江河口盐度的神经网络模拟)
Zhejiang Daxue xuebao. Lixue ban, 2011 盐水入侵会对潮汐河口饮用水源地产生影响，河口盐度的合理预测对饮用水源地取水安全和水库泄水抑咸调度有重要意义.以上游流量和下游潮差为控制条件，建立模拟钱塘江河口盐度变化情况的神经网络模型.首先对输入数据作归一化处理，利用上半年观测数据对模型进行反复训练，进而后报下半年盐度.模型输出数据反归一化所得到的结果与实测盐度数据比较，两者较为一致.表明基于河口盐度与上游流量和下游潮差间映射关系所建立的神经网络模型可有效地模拟潮汐河口的盐度变化.利用神经网络方法模拟了上游流量变化条件下钱塘江河口某测站的氯化物浓度 ...
XUDan(许丹) +2 more
doaj +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
Gongye shui chuli, 2023 目前虽未见海水淡化工程对其所在海域的生态环境造成严重破坏的相关报道，但由于浓盐水具有高盐度、高温的特点，且含有铝、重金属和杀菌剂余氯，会明显抑制部分浮游动植物的生长；而在浓盐水排放的相关海域中，鱼类丰度和物种丰富度有所提高。因此，需要进一步研究浓盐水排放对海洋生态环境的影响。综述了国内外海水淡化产生的浓盐水的排放现状和管理要求，重点分析了海水淡化工程浓盐水排放对海洋生态环境造成的影响，并提出减缓影响的相应对策与建议。通过梳理现有排放方式，发现通过优化浓盐水排放口设计，采用混合排放技术 ...
齐延民, 刘昕, 王立明, 孙珊
doaj +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Developing high‐efficiency catalysts for the seawater urea oxidation reaction (UOR) is pivotal to advancing hydrogen production via seawater electrolysis. Defect engineering has established itself as a core strategy for regulating catalytic activity.
Xiaoyu Wu +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Graphene‐reinforced copper (Gr/Cu) composites have attracted considerable attention because of their potential to achieve a synergistic enhancement of strength, electrical conductivity, and corrosion resistance; however, the poor dispersion of graphene in the Cu matrix remains a key limitation for their further development.
Wenjing Zhang +12 more
wiley +1 more source
Dianci bileiqi, 2022 为掌握直流接地极在海洋环境下的腐蚀特性，进行了典型直流接地极材料在模拟海水和自然海水、海水浸泡沙、海水浸泡焦炭环境下的自然腐蚀和电解腐蚀试验。结果表明：接地极在海水浸泡焦炭中的自然腐蚀最严重，在海水中次之，在海水浸泡沙中最小。在通流时，除高硅铬铁外接地极在海水和海水浸泡沙中的电解腐蚀速率相近，在海水浸泡焦炭中的电解腐蚀速率明显减小；且随着含海水量的增加，焦炭对接地极电解腐蚀的减缓作用逐渐减弱。对不同接地极材料，焦炭的保护系数不同。典型接地极材料中，海洋环境下耐蚀性能最强的是MMO、钛镀铂，其次是石墨 ...
童雪芳, 谭波, 李冠华
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang +5 more
wiley +1 more source
Zhongguo youzhi旨在为高含量甘油三酯型鱼油的酶法工业化生产提供参考，以乙酯型鱼油和甘油为底物，采用酶催化酯交换反应制备高含量甘油三酯型鱼油，通过单因素试验确定振荡速度、反应温度、反应时间及加酶量对酯交换反应的影响。在此基础上，采用Box-Behnken设计酯交换反应工艺条件，并结合响应面法（RSM）和人工神经网络（ANN）模型分别对工艺进行优化，通过比较筛选出适宜的工艺优化方法，同时考察了脂肪酶的重复利用性能。结果表明：相较于ANN模型，RSM模型拟合程度更高，实测值与预测值之间误差更小 ...
牛妍1，苗钧魁2，刘小芳2，王西西2，冷凯良2，杨天燕1NIU Yan1,MIAO Junkui2,LIU Xiaofang2,WANG Xixi2, LENG Kailiang2, YANG Tianyan1
doaj +1 more source