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pMBRT:先进质子放射治疗技术基础与设计
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作者 王孝娃 杜宁 王岚 《中国医疗器械杂志》 2024年第1期10-14,共5页
该研究以先进的质子微束放射治疗(proton minibeam radiation therapy,pMBRT)为对象,介绍了pMBRT的发展历程、微束的生物学作用、微束保护组织的机理、微束的产生技术(准直器方法与磁聚焦方法)、质子微束矩阵阵列优缺点等,对pMBRT进行... 该研究以先进的质子微束放射治疗(proton minibeam radiation therapy,pMBRT)为对象,介绍了pMBRT的发展历程、微束的生物学作用、微束保护组织的机理、微束的产生技术(准直器方法与磁聚焦方法)、质子微束矩阵阵列优缺点等,对pMBRT进行了综合的评价。提出将质子微束阵列与磁共振磁场结合,一方面有助于发挥pMBRT的正常组织保护功能,另一方面有助于提高质子治疗的精准性。 展开更多
关键词 质子微束放射治疗 磁共振成像 剂量 质子阵列
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Pt纳米线阵列的氧还原催化性能 被引量:9
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作者 张敏 李经建 +1 位作者 潘牧 徐东升 《物理化学学报》 SCIE CAS CSCD 北大核心 2011年第7期1685-1688,共4页
采用阳极氧化铝(AAO)模板法电化学沉积制备了Pt纳米线阵列(Pt NWs)氧还原催化剂,通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)和电化学测试对Pt纳米线阵列催化剂的形貌和电催化性能进行了表征.循环伏安法(CV)研究表明Pt纳和线阵列催... 采用阳极氧化铝(AAO)模板法电化学沉积制备了Pt纳米线阵列(Pt NWs)氧还原催化剂,通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)和电化学测试对Pt纳米线阵列催化剂的形貌和电催化性能进行了表征.循环伏安法(CV)研究表明Pt纳和线阵列催化剂的电化学活性面积大于其几何面积;旋转圆盘电极(RDE)测试研究发现,制备的Pt纳米线阵列催化剂的氧还原反应(ORR)曲线的半波电势相对Pt/C的有正移,并且Pt纳米线阵列催化剂的极限扩散电流比Pt/C大. 展开更多
关键词 AAO模板:铂纳米线阵列:氧还原反应:质子交换膜燃料电池
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具有动态调节特性的光伏制氢双阵列直接耦合系统优化策略 被引量:13
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作者 李军舟 赵晋斌 +2 位作者 曾志伟 毛玲 屈克庆 《电网技术》 EI CSCD 北大核心 2022年第5期1712-1720,共9页
氢能是目前国内外研究的热点与前沿,利用太阳能发电进行电解水制氢,对实现碳达峰与碳中和具有重要意义。针对光伏制氢直接耦合系统灵活性低,不能大规模应用等问题,该文提出一种双阵列系统下的动态调节优化策略。基于光伏-电解槽双阵列... 氢能是目前国内外研究的热点与前沿,利用太阳能发电进行电解水制氢,对实现碳达峰与碳中和具有重要意义。针对光伏制氢直接耦合系统灵活性低,不能大规模应用等问题,该文提出一种双阵列系统下的动态调节优化策略。基于光伏-电解槽双阵列复杂模型,深入分析电解水装置自身工作特性,并利用最小二乘法对光伏最大功率曲线进行分段线性化处理。从光伏阵列以及电解槽阵列的I-U特性曲线匹配角度揭示直接耦合系统工作点的运行机理。仿真结果验证了所提策略的有效性,分析结果表明在保障高效率消纳光伏能量的同时,增加了系统的灵活性和产氢速率,对光伏电解水制氢技术的研究和氢能产业发展提供参考。 展开更多
关键词 光伏制氢 质子交换膜电解槽阵列 最小二乘法 产氢速率
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Review:Global nutrient profiling by Phenotype MicroArrays:a tool complementing genomic and proteomic studies in conidial fungi 被引量:4
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作者 Lea ATANASOVA Irina S.DRUZHININA 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2010年第3期151-168,共18页
Conidial fungi or molds and mildews are widely used in modern biotechnology as producers of antibiotics and other secondary metabolites,industrially important enzymes,chemicals and food.They are also important pathoge... Conidial fungi or molds and mildews are widely used in modern biotechnology as producers of antibiotics and other secondary metabolites,industrially important enzymes,chemicals and food.They are also important pathogens of animals including humans and agricultural crops.These various applications and extremely versatile natural phenotypes have led to the constantly growing list of complete genomes which are now available.Functional genomics and proteomics widely exploit the genomic information to study the cell-wide impact of altered genes on the phenotype of an organism and its function.This allows for global analysis of the information flow from DNA to RNA to protein,but it is usually not sufficient for the description of the global phenotype of an organism.More recently,Phenotype MicroArray (PM) technology has been introduced as a tool to characterize the metabolism of a (wild) fungal strain or a mutant.In this article,we review the background of PM applications for fungi and the methodic requirements to obtain reliable results.We also report examples of the versatility of this tool. 展开更多
关键词 Biolog Phenotype MicroArray Mitosporic fungi Carbon metabolism TRICHODERMA ASPERGILLUS BIOTECHNOLOGY
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Optical Properties of Laterally Aligned Si Nanowires for Transparent Electronics Applications
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作者 Dong Hyun Lee Jaeseok Yi +3 位作者 Won Woo Lee Ungyu Paik John A. Rogers Won II Park 《Nano Research》 SCIE EI CAS CSCD 2011年第9期817-823,共7页
We have investigated the optical properties of laterally aligned Si nanowire (SiNW) arrays in order to explore their potential applicability in transparent electronics. The SiNW array exhibited good optical transpar... We have investigated the optical properties of laterally aligned Si nanowire (SiNW) arrays in order to explore their potential applicability in transparent electronics. The SiNW array exhibited good optical transparency in the visible spectral range with a transmittance of -90% for a NW density of -20-25 per 10 μm. In addition, polarization-dependent measurements revealed a variation in transmittance in the range of 80%-95% depending on the angle between the polarization of incident light and the NW axis. Using the SiNWs, we demonstrated that transparent transistors exhibit good optical transparency (greater than 80%) and showed typical p-type SiNW transistor characteristics. 展开更多
关键词 Si nanowire optical properties transparent thin film transistor finite-difference time-domain (FDTD) modeling
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