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Effect of Free Radicals on Irradiation Chemistry of a Double-Coordination Organotin(Sn_(4))Photoresist by Adjusting Alkyl Ligands

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CCS Chemistry 2024年第8期6卷 2044-2053页

作者： Hao Chen Yifeng Peng Haichao Fu fuping han Guangyue Shi Feng Luo Jun Zhao Danhong Zhou Pengzhong Chen Xiaojun Peng State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart MaterialsSchool of Chemical EngineeringDalian University of TechnologyDalian 116024 Research and Development Center of Valiant Co. Ltd.YEDAYantai 264006 School of Materials Science and Engineering Nankai UniversityTianjin 300350 Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201203 State Key Laboratory of Fine Chemicals College of Materials Science and EngineeringShenzhen UniversityShenzhen 518060

Metal oxide cluster(MOC)photoresists are highly promising materials for the next generation of extreme ultraviolet lithography(EUVL).The consecutive exploration of novel MOC materials and their structural irradiation chemistry are the major concerns associated with ***,we report two bicoordinated tin-oxo clusters(TOCs),the organic ligands of which contain both adamantane carboxylic acids and alkyl groups(methyl:Sn_(4)–Me–C10;butyl:Sn_(4)–Bu–C10).We explore the correlation between the structures of the TOCs and their patterning properties by adjusting the alkyl groups coordinated to the Sn *** structural variation causes different irradiation chemistry,with Sn_(4)–Me–C10 exhibiting improved resolution and Sn_(4)–Bu–C10 demonstrating higher *** differences are attributed to the bonding energies of the Sn-methyl and Sn-butyl groups,the size of the resulting alkyl radicals,and their reaction *** clusters occur in the reactions of Sn–C bond cleavage and the decarboxylation of adamantane carboxylic acids upon ***,the entire process exhibits distinct *** on the electron-beam lithography and other experiments,we proposed irradiationinduced reaction mechanisms for both *** Sn_(4)–Bu–C10 cluster predominantly undergoes alkane chain linkage,whereas the Sn_(4)–Me–C10 cluster mainly follows the adamantanes linkage pathway.

关键词： extreme ultraviolet photoresist tin-oxo clusters free radical alkyl ligand lithographic process semiconductor manufacturing

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急诊科护士工作环境与职业生涯成功感的相关性研究

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中国护理管理 2017年第4期17卷 511-515页

作者：韩付平王志稳北京大学人民医院急诊科北京市100044 北京大学护理学院

目的:调查急诊科护士职业生涯成功感及其对工作环境的评价,并分析工作环境对急诊科护士职业生涯成功感的影响。方法:采用护士职业生涯成功量表和工作环境量表,对北京市2所三级甲等医院急诊科160名护士进行问卷调查。结果:急诊科护士职... 详细信息

目的:调查急诊科护士职业生涯成功感及其对工作环境的评价,并分析工作环境对急诊科护士职业生涯成功感的影响。方法:采用护士职业生涯成功量表和工作环境量表,对北京市2所三级甲等医院急诊科160名护士进行问卷调查。结果:急诊科护士职业生涯成功总分为(31.42±5.60)分,处于中下等水平。3个维度得分由高到低为组织外竞争力(3.30±0.61)分、组织内竞争力(2.74±0.81)分、职业满意度(2.66±0.67)分。多元回归分析显示,参与院外培训次数、参与医院事务、高质量护理服务基础是急诊科护士职业成功的影响因素,可解释总体变异的43.4%。结论:急诊科护士职业生涯成功感处于中下水平,工作环境对护士职业生涯发展有显著影响,护理管理者应重视急诊科科护士的工作环境,采取积极措施加以干预,以提高其工作生涯成功感,稳定护士队伍。

关键词：急诊科护士职业生涯成功感工作环境

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基于KT模型的椭圆度对套管抗挤强度的影响

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断块油气田 2017年第3期24卷 426-429页

作者：范森陈顶峰冯雷冯福平雷扬韩旭东北石油大学石油工程学院黑龙江大庆163318 中国石油吉林油田扶余采油厂吉林松原138000 中海油能源发展股份有限公司工程技术分公司天津300452

椭圆度会降低套管的抗挤强度,但对其影响程度及规律并未得到统一认识。文中以考虑因素较为全面的KT抗挤强度计算模型为基础,建立了椭圆度与套管抗挤强度关系模型。研究结果认为:套管的抗挤强度随椭圆度的增大而降低,但降低趋势逐渐变缓... 详细信息

椭圆度会降低套管的抗挤强度,但对其影响程度及规律并未得到统一认识。文中以考虑因素较为全面的KT抗挤强度计算模型为基础,建立了椭圆度与套管抗挤强度关系模型。研究结果认为:套管的抗挤强度随椭圆度的增大而降低,但降低趋势逐渐变缓;套管的抗挤强度降低值随径厚比(D/t)的增大呈先增大后减小的趋势,存在一个临界D/t值,可使椭圆形套管的抗挤强度降低值最大;钢级越高,椭圆形套管的抗挤强度降低值最大的临界D/t值越小。文中较为全面地揭示了椭圆度对套管抗挤强度的影响程度及规律,进一步深化了椭圆度对套管抗挤强度影响的认识。

关键词：套管抗挤强度椭圆度 KT模型径厚比钢级

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复杂退台高位转换高层建筑振动台试验与分析

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地震工程与工程振动 2011年第5期31卷 75-83页

作者：马玉宏韩富平黄襄云陈建秋谭平李冰冰广州大学工程抗震研究中心广东省地震工程与应用技术重点实验室广东广州510405

对一幢具有转换层的复杂退台式框架剪力墙高层建筑的1/35缩尺模型进行了模拟地震振动台试验,深入研究该结构的动力特性和地震反应特征。试验及理论分析表明:该结构的抗震性能基本满足现行规范要求;由于结构上部逐渐退台,因而结构顶部有... 详细信息

对一幢具有转换层的复杂退台式框架剪力墙高层建筑的1/35缩尺模型进行了模拟地震振动台试验,深入研究该结构的动力特性和地震反应特征。试验及理论分析表明:该结构的抗震性能基本满足现行规范要求;由于结构上部逐渐退台,因而结构顶部有较明显的鞭端效应;结构首层和结构转换层及其相邻层的剪力墙、转换层上下层柱是受力较大的区域,应当局部加强,避免应力突变引发的竖向构件破坏等安全隐患的出现,提高结构整体抗震能力。

关键词：退台式高位转换框架剪力墙振动台试验

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CFD–DEM simulation of particle deposition characteristics of pleated air filter media based on porous media model

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Particuology 2023年第1期72卷 37-48页

作者： Kaiwen Cheng Jingjing Zhu fuping Qian Bowen Cao Jinli Lu Yunlong han School of Civil Engineering and Architecture Anhui University of TechnologyMa'anshan 243002China School of Energy and Environment Anhui University of TechnologyMa'anshan 243002China

In this study, the three-dimensional physical model of pleated air filtration media was simplified to porous media model, and the calculation parameters of porous media were obtained based on experimental data. The model of V-shaped pleated air filter media is constructed, the height of the media pleat is 50 mm and the pleat thickness is 4 mm, the pleat angle is 3.7°. The Hertz-Mindlin contact model was modified by Johnson Kendall Roberts (JKR) adhesion contact model. The deposition process of particles in media was simulated based on computational fluid dynamics (CFD) theory and discrete element method (DEM). Results show that the CFD–DEM coupling method can be effectively applied to the macro research of pleated air filter media. The particles will form dust layer and dendrite structure on the fiber surface, and the dust layer will affect the subsequent air flow organization, and the dendrite structure will eventually form a “particle wall”. The formation of the “particle wall” will prevent the particles from moving further in the fluid domain, which makes area of pleated angle become the “low efficiency” part about the particle deposition. Compared with area of pleated angle, the particles are concentrated in the opening area and the middle area of the pleated to agglomerate and deposit.

关键词： Pleated air filter media CFD-DEM Air distribution Deposition characteristics

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Numerical investigation of non-spherical particle deposition characteristics on filter media

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Building Simulation 2023年第8期16卷 1331-1343页

作者： Lumin Chen Ke Yuan fuping Qian Zhimin Zheng Jinli Lu Yunlong han School of Energy and Environment Anhui University of TechnologyMa'anshanAnhui 243002China School of Civil Engineering and Architecture Anhui University of TechnologyMa'anshanAnhui 243002China

In the building environment,PM2.5 seriously affects people’s health and quality of life,so it is necessary to study the particle deposition *** addition,it is essential for a thorough investigation of the dust removal mechanism to understand the non-spherical particles deposition *** stacking angle experiment was used to calibrate the discrete element simulation *** four simulation methods(CFD-DPM,CFD-DEM,API interface loading drag model based on EDEM software and EDEM simulation)were used to numerically simulate the non-spherical particles deposition *** optimal simulation method EDEM was applied to study the non-spherical particles deposition characteristics in filter media,which saves the calculation time *** this basis,the particle parameters on the particle deposition characteristics of filter media were *** results show that the deposition rate of non-spherical(special shape)particles with the same volume is basically consistent on the filter media,hence it is more realistic that the dust actual shape is simplified into the triangular-shaped *** the particle size increases,the number of deposited particles on the filter media *** the larger the particle size,the more dispersed the *** has a significant impact on the number of particles deposited on the filter media when the particle velocity is 0.1 m/*** particle deposits to the lower part of the filter media in the form of a parabola and deviates from the outlet seriously at 0.1 m/***,it has little effect on the number of particle deposition at the other velocities,and most particles are deposited on the upper part of the filter media with the increase of particle velocity.

关键词： particle deposition non-spherical particles calibration of stacking angle discrete element method

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粤港澳三地桥梁抗震设计地震动参数比较研究

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四川建筑科学研究 2012年第5期38卷 127-132页

作者：马玉宏温留汉·黑沙赵桂峰崔杰韩富平广州大学工程抗震研究中心广州大学减震控制与结构安全重点实验室广东广州510405 广州大学土木工程学院广东广州510006

对我国广东、香港和澳门三地使用的桥梁抗震设计规范进行了综合比较,比较的内容包括重要性分类、抗震设防标准及目标、场地土分类、设计地震动中加速度反应谱的形式、地震作用的计算等。重点对决定桥梁结构抗震安全性的地震动参数(加速... 详细信息

对我国广东、香港和澳门三地使用的桥梁抗震设计规范进行了综合比较,比较的内容包括重要性分类、抗震设防标准及目标、场地土分类、设计地震动中加速度反应谱的形式、地震作用的计算等。重点对决定桥梁结构抗震安全性的地震动参数(加速度反应谱)的规定进行了比较。结果表明:三地桥梁工程抗震设计规范各有特色,在地震作用的计算方面有相似之处。AASHTO桥梁规范是真正意义上的基于性态要求的抗震规范,Eurocode 8规范引入了强度折减系数来考虑结构的延性设计,我国的桥梁抗震设计规范主要特点则是多水准的抗震设计法。我国桥梁抗震设计规范虽然有了长足的进步,但在很多方面(例如考虑地震危险性分区)仍可借鉴其它规范进一步改进和提高。

关键词：地震动参数公路桥梁延性设计

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Effect of interaction between different CeO_(2)plane and platinum nanoparticles on catalytic activity of Pt/CeO_(2)in toluene oxidation

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Journal of Rare Earths 2022年第11期40卷 1743-1750,I0003页

作者： Shengsheng Chang Yong jia Yiqing Zeng fuping Qian Lina Guo Shenghua Wu Jinli Lu Yunlong han School of Energy and Environment Anhui University of TechnologyMa'anshan 243002China School of Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China School of Civil Engineering and Architecture Anhui University of TechnologyMa'anshan 243002China

The plane exposure of support vitally affects the catalytic performance of the *** this work,CeO_(2)nanorods((110)plane exposure),nano-octahedrons((111)plane exposure)and nano-cubes((100)plane exposure)were prepared as the supports of Pt/CeO_(2)samples to investigate the effect of CeO_(2)plane exposure on total toluene *** reveal that the(110)plane of CeO_(2)is more helpful to the dispersion of Pt species,followed by(111)*** improved dispersion of Pt species can enhance the metal-supports interaction,which promotes the electron transfer of CeO_(2)carrier to Pt nanoparticles and the adsorption-activation of O_(2),thereby facilitating the total oxidation of toluene via the Langmuir-Hinshelwood(L-H)***,Pt/CeO_(2)-r(nanorods)sample expresses excellent catalytic performance of toluene ***,the procedure of toluene total oxidation was studied by in-situ diffuse reflectance infrared Fourier transform(DRIFT)*** expect that this work can contribute to the development of an effective sample for the decomposition of volatile organic compounds(VOCs).

关键词： CeO_(2)plane Pt/CeO_(2) Toluene oxidation Metal-supports interaction Rare earths

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豚鼠窦房结细胞的分离与鉴定

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广东药学院学报 2015年第4期31卷 526-530页

作者：殷春霞韩福平文婷陈耀旭尚瑾玲谭文华南理工大学生物科学与工程学院/生物医药前孵化器研究中心/广东省发酵与酶工程重点实验室广东广州510006

目的探讨豚鼠窦房结（SAN）细胞的分离方法和鉴定。方法通过打结定位法确定窦房结的＂中心区域＂,双酶解法分离窦房结细胞,观察SAN细胞形态,并利用全细胞膜片钳技术记录SAN细胞动作电位,鉴定窦房结细胞。结果 SAN细胞呈两头狭小中间稍... 详细信息

目的探讨豚鼠窦房结（SAN）细胞的分离方法和鉴定。方法通过打结定位法确定窦房结的＂中心区域＂,双酶解法分离窦房结细胞,观察SAN细胞形态,并利用全细胞膜片钳技术记录SAN细胞动作电位,鉴定窦房结细胞。结果 SAN细胞呈两头狭小中间稍微膨出的梭形,呈蚯蚓状,无清晰横纹,在正常Tyrode液中恢复规律的跳动。典型SAN细胞占细胞总数的3%~5%。利用全细胞膜片钳记录到去极化速度慢,无平台期,4期呈现自动除极的典型SAN细胞动作电位。结论采用打结定位法和双酶解法可获得典型的SAN细胞,此法分离的细胞活性良好,存活率较高,是一种简单高效的窦房结细胞分离方法,可广泛用于各种研究。

关键词：豚鼠窦房结分离动作电位

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A low-cost and high-performance self-trigger method for high-voltage transient measurement

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High Voltage 2023年第2期8卷 412-420页

作者： Hao Liu Guoming Ma Weiqi Qin Wei Wang Houxian Du Lei Wang Shicong Zhai fuping Zeng Weixing han State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijingP.R.China China Electric Power Research Institute WuhanHubei ProvinceChina School of Electrical Engineering and Automation Wuhan UniversityWuhanChina

Stable triggering of acquisition devices is critical to accurately measure electromagnetic transients,especially for very fast transient overvoltages(VFTOs).A highly stable and lowcos t self-trigger method for transient measurement is *** integrated low-voltage arm module was developed to synchronously realise the triggering and VFTO *** trigger branch was developed using a high-pass *** component obtained the high-frequency component of the VFTO to trigger the *** trigger branch was integrated with the measurement branch through an impedance *** attenuator was implemented before the impedance converter to avoid overvoltage damage to the *** circuit parameters of the attenuator were optimised to alleviate the disturbance of the measurement *** calibration results demonstrated that the±1 dB bandwidth of the measurement branch in this system ranged from 11.8 Hz to 105 *** low cutoff frequency of the trigger branch was 710 *** VFTO waveforms generated by the operation of a disconnector in a real 252 kV gas insulated switchgear were measured using the proposed *** test results verified that the self-trigger measurement system can provide stable trigger signals and accurately measure the VFTO waveforms.

关键词： transient branch impedance

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