Results 21 to 30 of about 11,991 (110)

Anisotropic MoS2/SiC Aerogels: A Multifunctional Platform for Broadband Electromagnetic Stealth and Thermal Management

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song   +4 more
wiley   +1 more source

近断层速度脉冲型地震动相关问题研究

open access: yesDizhen xuebao, 2022
近断层速度脉冲型地震动研究对揭示建筑结构的破坏机理、开展抗震设防以及抗震设计具有重要价值。首先,对速度脉冲成因进行了系统的总结,并探讨了区分方向性效应速度脉冲和滑冲效应速度脉冲的思路;其次,系统地介绍了近断层速度脉冲的识别方法,评述了各种脉冲识别方法的优缺点;然后,基于速度脉冲特性,探讨了前方向性效应对速度脉冲特性的影响以及速度脉冲对反应谱的放大作用;最后,对速度脉冲型地震动输入方法以及对结构响应研究进行了系统总结,探讨了速度脉冲型地震动输入的关键问题。基于丰富的理论研究 ...
Xiaofen Zhao, Zengping Wen
doaj   +1 more source

Superior Abrasibility of YSZ(ESP)/BN@ZrO2‐Polyester Composite Sealing Coating Reinforcing With Hybrid Micron/Nanometer Multiscaled Pore Structure

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu   +8 more
wiley   +1 more source

Achieving Superior Strength‐Ductility Synergy in Bionic Magnesium‐Iron Composites by Topological Optimization

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Magnesium (Mg)‐based composites are regarded as promising lightweight materials with significant potential for structural applications. The structure–property relationships of bionic Mg‐based composites remain unclear. Herein, three honeycomb‐like Mg‐Fe composites are fabricated to uncover the underlying strengthening mechanisms.
Fan Zhang   +5 more
wiley   +1 more source

退耕地青海云杉人工林土壤抗冲性试验研究

open access: yesShuitu Baochi Xuebao, 2004
青海云杉为青海省大通县的顶极植物群落树种,是当地退耕还林的主要树种.通过研究退耕地青海云杉人工林的土壤抗冲性,对于科学指导当地生产实践、制定退耕还林方案等十分必要.三因素三水平的正交试验结果表明,土层、坡度、流量对抗冲性的影响依次增强,以流量对抗冲性的影响最大.<1 mm根数是影响土壤抗冲性的主要生物因素,<1 mm根数越多,土壤抗冲性越强.青海云杉人工林根系为表层聚积、下层骤减的分布类型.表土层(0~20 cm)为根系密集分布层,<1 mm根数占98.88%,根长占91.37 ...
胡建忠 周心澄 李文忠 张春霞
doaj   +2 more sources

3D‐Printed Porous High‐Entropy Alloy Boosts Peroxymonosulfate Activation for Long‐Term Organic Pollutant Degradation

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
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

Coral‐Like Yolk–Shell‐Structured CoNi@Void@C Microspheres for Enhanced Microwave Absorption, Photothermal, Anti‐Corrosion, and Radiation Shielding Properties

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu   +8 more
wiley   +1 more source

Single Cold Atmospheric Plasma Therapy May Improve the Treatment Outcome of Canine Otitis Externa With Secondary Infection

open access: yesVeterinary Dermatology, Volume 37, Issue 1, Page 103-110, February 2026.
Background: Otitis externa with secondary bacterial or yeast infection is a common problem in small animal practice. Cold physical plasma (CPP) has been reported to have antimicrobial activity in vitro. Results: Ears treated additionally with CPP showed lower otic scores after 21 days compared to nontreated ears, although this difference was not ...
Ralf S. Mueller, Cosima Bouassiba
wiley   +1 more source

苏北海堤林带树木根系固土功能研究

open access: yesShuitu Baochi Xuebao, 1994
该文通过对海堤林带树木根系及土壤抗冲,抗蚀和渗透性的测定分析,发现同一地段土壤的抗冲,抗蚀指数表土层大于底土层。树木根系,尤其是根径≤2mm的细根有较强的固特土壤功能,抗冲指数与根长,根量间有明显的相关性,单相关系数分别为0.9326和0.8256。吸机质含量高的土壤抗蚀性强,抗蚀指数大,与有机含量间的相关系为0.8931,与细根的根长和根量的相关性相对较低,单相关系数分别为0.8216和0 ...
张金池 康立新
doaj   +2 more sources

花岗岩崩岗不同层次土壤抗冲性及其影响因素

open access: yesShuitu Baochi Xuebao, 2017
针对湖北通城花岗岩崩岗区发育的淋溶层(A层)、淀积层(B层)、过渡层(BC层)以及母质层(C层),采用不同坡度(8.8%,17.6%,26.8%,36.4%,46.6%)和不同流量(0.2,1.0 L/s)相结合的室内放水冲刷试验,分析崩岗各层次土壤的抗冲性指数,初步探讨花岗岩崩岗不同坡度及各层次土壤主要理化性质对抗冲性的影响。结果表明:⑴湖北通城县崩岗土壤A层、B层、BC层以及C层的理化性质存在较大差异。⑵当流量一定时,随着坡度的增大,土壤的抗冲性指数均表现为减小的趋势;当坡度一定时 ...
徐加盼   +5 more
doaj  

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