Results 21 to 30 of about 11,241 (118)

Boron Difluoride Chelated Aminoanthraquinone Photosensitizer for Type I Photodynamic Therapy

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Type I photosensitizers capable of generating cytotoxic reactive oxygen species (ROS), with reduced oxygen dependence under photoirradiation, are regarded as a promising phototherapeutic approach for hypoxic solid tumors. Herein, based on the electron donor of 9‐phenyl‐carbazole (Cz) and the electron acceptor of anthraquinone (AQ ...
Tian Zhang   +8 more
wiley   +1 more source

750kV带间隙避雷器不同本体参数能量吸收特性研究

open access: yesDianci bileiqi, 2015
为了研究750 kV带间隙避雷器不同本体参数能量吸收特性,选取西北地区典型750 kV系统建立ATP-EMTP计算模型,并选取由D105电阻片组成的500 kV、540 kV和588 kV不同额定电压的750 kV线路避雷器,分别研究在雷击塔顶反击导线和雷电绕击导线时避雷器的吸收能量特性。计算结果表明:雷电反击时,避雷器的吸收能量随着避雷器额定电压的增大而减小,且吸收能量较小;雷电绕击时,避雷器的吸收能量随着避雷器额定电压的增大而增大,且吸收能量较大。从工程实际考虑:建议750 ...
马欢   +4 more
doaj  

Constructing a Favorable Microenvironment for Robust Hydrogen Storage in MgH2 Through Synergistic Cooperation With Mn and Mg2Ni

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Weakening the electrostatic attraction between Mg2+ ions and H− ions in MgH2 is vital for improving the kinetic performance of MgH2 for hydrogen storage. Herein, a multivalent microenvironment is synergistically created by Mn and Mg2Ni to break the stable structure of MgH2, enabling rapid and stable de/hydrogenation performance.
Ya‐Ke Wu   +7 more
wiley   +1 more source

Optimizing the Electromagnetic Wave Absorption Performance of MXene@Sm(OH)3 Across the Ku Band Based on Asynchronous Permittivity Regulation

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The central challenge in the development of high‐performance electromagnetic wave‐absorbing materials lies in achieving an optimal balance between impedance matching and attenuation characteristics. This is particularly critical for purely dielectric absorbers, where precise tailoring of the real (ε′) and imaginary (ε″) parts of the complex ...
Zhixiao Wang   +7 more
wiley   +1 more source

Boosting TiO2 Photocatalytic H2O2 Production via S, N‐Codoped Lignin‐Derived Carbon Dots: Quantifying the Enhancement Role

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Carbon dots (CDs) have emerged as promising modifiers for boosting the photocatalytic H2O2 production, yet their precise role remains to be quantitatively elucidated. Herein, S, N‐codoped lignin‐derived carbon dots (SN‐LCDs) and lignin‐derived carbon dots (LCDs) were synthesized and employed to modify TiO2.
Bin‐Peng Zhang   +6 more
wiley   +1 more source

基于静态伏安特性曲线的ZnO电阻片耐受能量计算等效性研究

open access: yesDianci bileiqi, 2022
为了模拟计算ZnO电阻片在避雷器组限制过电压过程中吸收的能量,笔者针对所选取的电阻片进行冲击电流试验;绘制了在不同电流波形下的静态伏安特性曲线,描述了其与电阻片实际伏安特性的关系,并统计了同批次电阻片伏安特性分布规律;通过曲线拟合的方式建立伏安特性方程进行吸收能量的模拟计算。结果显示,在耐受冲击电流的过程中,电流波形波头时间对电阻片吸收能量计算等效性影响最大,波头时间越长,电阻片所表现出的伏安特性越接近试验绘制的静态伏安特性曲线,即通过静态伏安特性曲线进行能量模拟计算等效性越好。
刘志远   +6 more
doaj  

Plant functional trait dissimilarity drives plant mixture effects on fine root biomass and trait variations

open access: yesNew Phytologist, Volume 249, Issue 2, Page 764-776, January 2026.
Summary Fine roots are critical for soil resource uptake, yet how declining plant diversity alters fine root biomass (RB) and traits remains unclear. We tested how plant functional trait dissimilarity in shade tolerance, drought tolerance, growth rate, and nitrogen‐fixation ability drives variation in root attributes.
Sai Peng, Yakun Zhang, Han Y. H. Chen
wiley   +1 more source

Australian Teen Voices on Age Verification and Age Assurance Measures

open access: yesPolicy &Internet, Volume 17, Issue 4, December 2025.
ABSTRACT Age verification and age assurance technologies, including biometrics, facial recognition software and digital identification, have been explored as potential measures to restrict access of young people to social media and sexually explicit media (SEM), including pornography.
Giselle Woodley   +5 more
wiley   +1 more source

水肥配合对夏玉米养分吸收及根系活性的影响

open access: yesShuitu Baochi Xuebao, 2011
研究不同水肥条件对夏玉米养分吸收及根系活性的影响,解释水肥配合下夏玉米养分吸收规律和根系活跃吸收面积的变化特征.采用管栽试验,研究不同水肥条件对夏玉米不同生育期养分积累特征和根系吸收面积的影响.夏玉米干物质积累量与植株全量N、K的积累量变化趋势基本一致,植株内全量N、K积累量以拔节-大喇叭口阶段最多,P素积累主要集中于抽雄-成熟阶段.不同生育期根系活跃吸收面积与总吸收面积变化均呈单峰式曲线,峰值分别出现在大喇叭口期和抽雄期.在玉米生长季水肥充足条件下 ...
李秀芳, 李淑文, 和亮, 文宏达
doaj  

Factors influencing fine roots decomposition rates in response to nitrogen addition vary across root characteristics

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3504-3516, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nitrogen (N) deposition strongly affects litter decomposition and nutrient release, thereby reshaping carbon cycling in terrestrial ecosystems. Although most studies have focused on above‐ground litter, the effects of N addition on fine root decomposition and their ...
Yuneng Wang   +5 more
wiley   +1 more source

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