Results 21 to 30 of about 451 (65)

Nanofiltration Membranes for High‐Selectivity Separation of Li+ and Mg2+ From Salt Lake Brines: Strategies, Challenges, and Perspectives

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li   +5 more
wiley   +1 more source

钻孔应变数据的环境响应去除与震前异常提取

open access: yesDizhen xuebao
基于四川省姑咱台的钻孔应变观测数据,研究了2013年4月芦山MS7.0地震的应变异常。首先通过时间序列分解法去除芦山地震前后(2011年1月至2014年1月)观测数据的长期背景趋势和周期趋势,其次采用多通道奇异谱分析法分解数据,去除水位和气压引起的应变响应,最后提取应变数据中的震前负熵异常。结果表明:水位与水位应变响应的相关系数为−0.97;有96.1%天的日气压与其应变响应的相关系数的绝对值大于0.9,验证了本文环境响应去除算法的有效性;负熵异常累积与贝尼奥夫应变累积的一致性表明,震前4 ...
Kaiguang Zhu   +7 more
doaj   +1 more source

A Stretchable Sandwich Composite Film With Ultra‐Broadband Electromagnetic Interference Shielding and High‐Performance Photothermal Conversion Capability

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT With the rapid growth demand for advanced integrated electronic systems, lightweight flexible electromagnetic interference (EMI) shielding films integrated with functional properties, such as excellent mechanical properties and self‐healing capability, are a research focus in high‐tech functional materials. Herein, a sandwich‐structured aramid
Dan Guo   +9 more
wiley   +1 more source

高寒区多源降水产品精度与水文模拟效果评估——以雅鲁藏布江流域和拉萨河流域为例

open access: yesShuitu Baochi Xuebao, 2023
卫星降水产品在缺资料地区开展水文气象研究及径流模拟中发挥着至关重要的作用,然而卫星降水产品的精度可能会影响径流模拟效果。采用多种统计指标和VIC水文模型综合评估5种卫星降水产品(CMORPH-BLD、GSMaP_Gauge、CMFD、MSWEP和PERSIANN-CDR)在雅鲁藏布江流域的精度和拉萨河流域的水文模拟效果。结果表明:(1) CMORPH_BLD和GSMaP_Gauge在少雨季存在低估,CMFD在少雨季与观测值具有很好的一致性。MSWEP和PERSIANN-CDR在多雨季和少雨季存在高估 ...
班春广   +5 more
doaj  

Redox Reaction and Dissolution Analysis for Hollow C Nanospheres Comprising N‐Doped C Framework With Abundant Ni–Co Heteronuclear Catalysts for Highly Durable K‒Te Batteries

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Tellurium (Te), emerging as a promising alternative to sulfur (S) and selenium (Se), offers significant advantages for potassium (K) ion storage due to its comparable theoretical volumetric capacity (2619 mAh cm−3) and higher electronic conductivity (∼102 S m−1), which promotes rapid charge transfer and improves reaction kinetics.
Sung Woo Cho   +7 more
wiley   +1 more source

Multiple pregnancy with complete hydatidiform mole and coexisting normal fetus: systematic review and meta‐analysis of clinical outcomes from non‐randomized studies

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 272-282, March 2026.
ABSTRACT Objective Complete hydatidiform mole and coexisting normal fetus (CHMCF) is a rare condition for which there is significant heterogeneity in diagnosis, counseling and management of complications. The objective of this study was to summarize the prevalence of clinical outcomes in reported cases of CHMCF.
N. Salmeri   +8 more
wiley   +1 more source

Synergistic Anode/Cathode Optimization Engineering by Hierarchical Porous N‐Doped Carbon Fibers for Efficient Zinc Batteries

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The poor Zn chemistry of Zn metal anode and sluggish reaction kinetics of cathodes at high mass loadings are two crucial issues for hindering the application of aqueous Zn‐ion batteries (AZIBs). Herein, the hierarchical porous N‐doped carbon fibers (HPNCFs) were proposed to simultaneously optimize the reversibility of Zn plating/stripping of ...
Song Yang   +6 more
wiley   +1 more source

The Dependence of Properties on Structural Features in Macro/Micro Levels for PBF‐LB Fabricated Porous NiTi Alloy

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng   +7 more
wiley   +1 more source

A Comprehensive Review of Adsorbents for Rare Earth Separation: Design, Synthesis, Adsorption Performance, and Mechanisms

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang   +6 more
wiley   +1 more source

水锤效应分析数值模拟方法研究

open access: yesHe jishu
水锤效应一直是核电厂热工安全所关注的重要问题之一。准确获得水锤效应下压力波的传播数据对结构载荷分析和评价至关重要。目前,常见水锤分析程序多采用的是特征线法(Method Of Characteristics,MOC),但其在处理多管道复杂系统和捕捉不连续性方面存在一定的计算误差。而有限体积法(Finite Volume Method,FVM)在计算复杂系统水锤问题上存在优势,典型程序为RELAP5。对此,本文基于FVM初步开发了一款水锤压力波传播分析程序。针对具体的单相水锤问题,发展了一种“汽-液 ...
余 光辉   +4 more
doaj   +1 more source

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