Results 11 to 20 of about 7,464 (119)

新型射线折射透镜

open access: yesHe jishu
以低发射度、高亮度和高相干性为特征的第四代同步辐射光源和硬X射线自由电子激光器为X射线光学器件提出了更高的要求,同时也带来了新的发展机遇。本文探讨了基于折射原理的X射线透镜,包括复合折射透镜(Compound Refractive Lenses,CRL)、Kinoform透镜、OVAL透镜及OVAL-Kinoform透镜,回顾了阿尔瓦雷斯变焦X射线透镜(Alvarez varifocal X-Rays Lens,AXL)和锯齿型X射线折射透镜(Saw-tooth X-ray Refractive ...
鲁 同所   +11 more
doaj   +1 more source

Copper Slag‐Derived Cu3Fe17@C Alloy Enabling Efficient Peroxymonosulfate Activation for Levofloxacin Degradation via Cu‐Mediated Electron Transfer With Suppressed Metal Leaching

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen   +10 more
wiley   +1 more source

Marine Applications of Metal‐Modified FEVE Coatings on 6061 Aluminum Alloy for Enhanced Anti‐Corrosion and Anti‐Biofouling

open access: yesRare 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

X射线位置灵敏探测器及在能谱测量中的应用

open access: yes四川大学学报. 自然科学版, 1996
研制了一种一维X射线位置灵敏探测器,位置分辨本领好于1mm.由该探测器与衍射晶体相结合所组成的低能X射线能谱测量系统,对于57Co6.4keV的X射线 ...
杨朝文   +4 more
doaj  

MAPbBr3/MAPbCl3透明异质晶圆制备及其自驱动X射线探测性能研究

open access: yesHe jishu
有机-无机杂化钙钛矿晶圆在大面积X射线探测方面显示出巨大的潜力,尤其是自供电钙钛矿X射线探测器由于具有低功耗、便携性和适应性强等优点也受到越来越多的关注。然而,目前的钙钛矿晶圆在光学透明度上的差异表明钙钛矿晶片的晶体质量较差,这限制了X射线探测器的性能和稳定性。针对以上问题,提出基于能带工程的钙钛矿异质结自供电探测新策略,通过热压诱导结晶,开发出梯度温控双向压制工艺,成功制备出具有清晰界面的MAPbBr3/MAPbCl3异质结晶圆。测试结果表明,Au-MAPbBr3/MAPbCl3 ...
张 悦   +4 more
doaj   +1 more source

Low‐Threshold and Broad‐Wavelength‐Tunable CsPbClxBr3‐x/SiO2/Ag Hybrid Cavity Plasmonic Nanolaser Operated at Room Temperature

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Precise and controllable laser wavelength modulation over a broad spectral range in nanoscale devices is pivotal for advancing next‐generation optoelectronic technologies. Herein, we synthesized high‐quality CsPbBr3 nanowires (NWs) via the anti‐solvent method and constructed a CsPbBr3/SiO2/Ag hybrid structure, demonstrating both photonic and ...
Yizun Zhou   +10 more
wiley   +1 more source

半导体异质结构材料的X射线晶体衍射测试分析

open access: yesGuangtongxin yanjiu, 1994
本文介绍X射线晶体衍射的测试原理,讨论了半导体薄片异质结构材料X射线晶体衍射测量中正、负失配,晶片微弯曲,摇摆曲线的对称性,复杂曲线的分解、干涉带等问题。指出了晶体衍射测试结果对MOCVD、LPE工艺调整的重要性。
丁国庆
doaj  

Enhanced Dual‐Modality CT Imaging for Evaluating Hematogenous Metastasis During Photothermal Therapy

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
Dual‐modality computed tomography (CT) nanoprobes, BPP, are developed for real‐time microscopic monitoring of microvessel morphology and vascular permeability to provide predictive insights into cancer progression and metastasis. ABSTRACT Dynamic assessment of hematogenous metastasis is crucial for the tumor during photothermal therapy.
Yanhong Sun   +7 more
wiley   +1 more source

Taurolidine联合X-射线对前列腺癌细胞周期进程的影响

open access: yesZhongguo shiyan zhenduanxue, 2009
目的观察taurolidine联合X射线照射对前列腺癌(DU145)细胞周期进程的影响。方法通过流式细胞仪检测不同浓度的taurolidine单独或分别联合12、和4Gy的X-射线照射对DU145细胞周期的影响。结果50μmol/L的taurolidine可诱导DU145细胞发生G0/G1期阻滞,和s期的降低,并呈显著的时效和量效关系,当25μmol/L的taurolidine联合2和4Gy的X-射线照射时,细胞发生G2/M期阻滞,然而当50μmol/L的taurolidine联合2和4Gy的X ...
孙宝胜   +4 more
doaj  

Manipulating the D‐Band Center of Confined Nickel by Lattice Strain Strategy for Efficient Alkaline Hydrogen Evolution

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Nickel‐based materials are highly remarkable as promising transition metal catalysts for the electrochemical hydrogen evolution reaction (HER) in alkaline electrolytes. However, their electrochemical performance is limited by an unfavorable d‐band energy (Ed) level. Herein, we showcase an effective lattice‐strain strategy to modulate the Ed of
Shengjue Deng   +10 more
wiley   +1 more source

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