Results 51 to 60 of about 17,058 (187)
Rare Metals, EarlyView.ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2016 为探明红壤坡地枯落物敷盖的保水作用及其机理，在江西省北部德安县第四纪红黏土母质发育的红壤坡地开展定位试验，以裸露坡地为对照，研究枯落物敷盖措施实施15 a后对0—60 cm土层土壤的持水性、供水性和水分有效性的影响。结果表明：赣北红壤坡地的土壤水分持水能力低，供水能力弱，有效水含量少，仅为9.0%～11.1%；枯落物敷盖处理的红壤坡地（0—30 cm）土壤持水能力高于裸露坡地；低吸力范围（＜100 kPa）枯落物敷盖处理的下层（30—60 cm）土壤供水能力高于裸露坡地 ...
聂小飞 +5 more
doaj
Shuitu Baochi Xuebao, 2021 为探究微塑料对土壤持水性能的影响，选用粒径为1 mm和25 μm的聚乙烯微塑料（PE—MPs）颗粒进行土培处理后，采用高速离心机法测得不同处理下的土壤水分特征曲线，并使用Gardner模型进行拟合分析。结果表明：（1）土壤中累积少量的PE—MPs （0~5.00 g/kg）能增强土壤持水性，但当累积量超过一定阈值（5.00~50.00 g/kg）会导致土壤持水能力显著降低。（2）1 mm大粒径PE—MPs大量积累对土壤持水性的降低效应更显著；25 μm小粒径PE ...
周薇, 石磊, 许明祥
doaj
Rare Metals, EarlyView.ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为探究大气氮沉降增加导致的土壤团聚体结构变化规律及其对土壤水分入渗性能的影响,在贡嘎山针叶成熟林和中龄林内分别设计2种氮肥形态[(NH4)2SO4、KNO3]和4个浓度水平(0,10,20,40 kg/(hm2·a)N)的添加试验,研究不同形态大气氮沉降对亚高山森林土壤团聚体结构和土壤水分入渗特征的影响。结果表明:(1)随施氮量增加,中龄林土壤大团聚体含量逐渐增加,土壤持水量、孔隙度和水分稳定入渗率逐渐增大;成熟林土壤大团聚体含量、土壤持水量、孔隙度和水分稳定入渗率均表现出先增加后降低的趋势;(2 ...
郭海云, 王根绪, 孙守琴
doaj
Rare Metals, EarlyView.ABSTRACT The development of highly efficient and stable nonprecious metal electrocatalysts for the acidic oxygen evolution reaction (OER) is crucial to advance proton exchange membrane (PEM) water electrolysis. In this work, a dual synergistic strategy was proposed by constructing a Ce‐modified MnO2/MnO heterostructure.
Chuanbin Li +7 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2011 通过建立时间序列模型，对ADHD儿童与正常儿童的听觉持续性注意水平进行拟合，并分析2组被试间的差异，动态地观测ADHD儿童的注意缺陷水平，并实现对ADHD儿童注意水平的预测.被试选取ADHD儿童30名, 正常儿童10名，对被试进行听觉持续性操作测试，对每个序列的平均正确率进行时间序列模型分析，比较2组被试间的差异.根据数据的特征选用Holt模型对ADHD儿童的持续性注意水平进行建模及拟合，而正常儿童组则选用简单模型(Simple).与正常儿童相比，ADHD儿童存在显著的注意缺陷特征 ...
LIUSi-yan(刘斯彦) +2 more
doaj +1 more source
Rare Metals, EarlyView.ABSTRACT The past decade has witnessed a burgeoning demand of metals for global industrial development and infrastructure. Meanwhile, the depletion of mineral resources and the environmental damage caused by wastewater discharges pose significant threats to both economic and ecological sustainability. Fortunately, metal‐containing wastewaters also hold
Fei Zhang +6 more
wiley +1 more source
Effects of Portulaca oleracea Extracts on Gelation and Emulsification Properties of Pork Myofibrillar Proteins [PDF]
This study aimed to investigate the effects of Portulaca oleracea extracts (PE) on the gelation and emulsification properties of pork myofibrillar proteins (MPs). A myofibrillar protein-Fenton oxidation system (0.0049 g/L FeCl3, 0.0176 g/L ascorbic acid,
Chunhong TANG +5 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li +4 more
wiley +1 more source