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基于DLAS技术的现场在线气体浓度分析仪

仪器仪表学报 2005年第11期26卷 1123-1126,1134页

作者：顾海涛陈人叶华俊曾宏晔王健杭州电子科技大学电子信息学院杭州310018 聚光科技(杭州)有限公司杭州310012

半导体激光吸收光谱气体浓度分析仪器可现场在线分析工业过程气体浓度,具有无需采样预处理、响应速度快、不受背景气体和粉尘影响以及适应恶劣工业环境能力强等突出优势。在介绍调制吸收光谱基本原理的基础上详细介绍了仪器的性能特点... 详细信息

半导体激光吸收光谱气体浓度分析仪器可现场在线分析工业过程气体浓度,具有无需采样预处理、响应速度快、不受背景气体和粉尘影响以及适应恶劣工业环境能力强等突出优势。在介绍调制吸收光谱基本原理的基础上详细介绍了仪器的性能特点和组成结构。实验显示该仪器具有小于±1%的线性误差和长时间稳定性。现场应用证实了该仪器优越的工业环境适应性和高可靠性。

关键词：半导体激光吸收光谱调制吸收光谱气体浓度工业过程

Efficient Knoevenagel condensation catalyzed by imidazole-based halogenfree deep eutectic solvent at room temperature

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Green Energy & Environment 2020年第2期5卷 124-129页

作者： Hao Qin Yishan Zhou Qian zeng hongye Cheng Lifang Chen Bingjian Zhang Zhiwen Qi Max Planck Partner Group at the State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology130 Meilong RoadShanghai200237China School of Chemical Engineering and Technology Sun Yat-Sen University135 Xingang West RoadGuangzhou510275China

For the first time,we employed the halogen-free deep eutectic solvent(DES)into the Knoevenagel condensation between aromatic aldehydes and active methylene compounds at room *** DESs[3Im:PTSA]and[4Im:PTSA]were prepared by imidazole(Im)and p-tol-uenesulfonic acid(PTSA),which were experimentally screened from a series of organic acids with imidazole.a,b-Unsaturated carbonyl compounds were obtained in good to excellent yields under solvent-free conditions with fast reaction *** two DESs can be reused for multiple times with no loss of catalytic activity.

关键词： Halogen-free DES Knoevenagel condensation Room temperature Recyclable catalyst Solvent-free condition

Rotational Friction Damper’s Performance for Controlling Seismic Response of High Speed Railway Bridge-Track System

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Computer Modeling in Engineering & Sciences 2019年第9期120卷 491-515页

作者： Wei Guo Chen zeng hongye Gou Yao Hu Hengchao Xu Longlong Guo School of Civil Engineering Central South UniversityChangsha410075China National Engineering Laboratory for High Speed Railway Construction Changsha410075China School of Civil Engineering Southwest Jiaotong UniversityChengdu610031China Department of Civil Engineering the University of British ColumbiaVancouver V6T 1Z4Canada.

CRTS-II slab ballastless track on bridge is a unique system in China high speed *** application of longitudinal continuous track system has obviously changed dynamic characteristics of bridge *** bridge system and CRTS-II track system form a complex nonlinear *** investigate the seismic response of high speed railway(HSR)simply supported bridge-track system,nonlinear models of three-span simply supported bridge with piers of different height and CRTS-II slab ballastless track system are *** seismic analysis,it is found that shear alveolar in CRTS-II track system is more prone to be damaged than bridge components,such as piers,girders and *** result shows that the inconsistent displacement of bridge girders is the main cause of the CRTS-II track system’s *** the rotational friction damper(RFD)is adopted,which utilizes the device’s rotation and friction to dissipate seismic *** hysteretic behavior of RFD is studied by numerical and experimental *** prove that RFD can provide good hysteretic energy dissipation ability with stable ***,the analysis of RFD’s influence on seismic response of HSR bridge-track system shows that RFD with larger sliding force is more effective in controlling excessive inconsistent displacement where RFD is installed,though response of other bridge spans could slightly deteriorated.

关键词： Rotational friction damper high speed railway simply supported bridge-track system piers of different height CRTS-II track system seismic response control

Effect of water on extractive desulfurization of fuel oils using ionic liquids： A COSMO-RS and experimental study

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Chinese Journal of Chemical Engineering 2017年第2期25卷 159-165页

作者： Zhen Song Dian Yu Qian zeng Jingjing Zhang hongye Cheng Lifang Chen Zhiwen Qi Max Planck Partner Group at the State Key Laboratory of Chemical Engineering School of Chemical Engineering East Chino University of Sdence and Technology Shanghai 200237 China

When evaluating ionic liquids （ILs） for extractive desulfurization （EDS） of fuel oils, the inevitable presence of water in the system may have a significant and in many cases strongly negative effect. However, few studies have considered this particular issue and a promoted water effect on EDS is scarcely reported. In this work, COSMO-RS was firstly employed to calculate the capacity and selectivity for EDS of various IL/H20 mixtures, which cover different IL characters and a wide water concentration range. Experiments were then conducted with a representative IL [C4MIM]IH2P04], whose stable and even promoted extraction performance with a small amount of water was suggested by COSMO-RS. Through analyses of the desulfurization ratio, the cross- solubility and the water content in the desulfurized fuel, the promoted effect of water within a certain range （〈 10 wt%） was experimentally demonstrated. Moreover, such effect of water was explained combining the viscosity, the solvent-solute interactions and the COSMO-RS based analysis.

关键词： Extractive desulfudzationIonic liquidsCOSMO-RSWater content effect

A water-evaporation-induced self-charging hybrid power unit for application in the Internet of Things

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科学通报：英文版 2019年第19期64卷 1409-1417页

作者： Haoxuan He Tianming Zhao hongye Guan Tianyan Zhong Hui zeng Lili Xing Yan Zhang Xinyu Xue School of Physics University of Electronic Science and Technology of ChinaChengdu610054China College of Sciences Northeastern UniversityShenyang110819China

A self-charging hybrid power unit has been developed by integrating a water-evaporation-induced nano- generator with a flexible nano-patterned supercapacitor. The nanogenerator can harvest environmental thermal energy and mechanical energy through the water evaporation process, and the supercapacitor can be charged simultaneously. The former offers stable electrical power as output, whereas the Ppy- based supercapacitor shows a capacitance of 12.497 m F/cm^2 with 96.42% retention after 4,000 cycles. After filling the power unit with water as the fuel, it can be fully charged in about 20 min. The power unit can be flexibly integrated with electronic devices such as sensor nodes and wireless transmitters employ- ing the Internet of Things. This new approach can offer new possibilities in continuous future operation of randomly distributed electronic devices incorporated in the Internet of Things.

关键词： Self-charging Hybrid power unit Water evaporation Nanogenerator Supercapacitor Internet of Things

轨道交通用FPC压敏胶的失效原因分析及解决方案

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当代化工研究 2024年第15期 117-119页

作者：宗建平郑宏业王丽娟张伟曾志卫中车唐山机车车辆有限公司河北063000 深圳市美信检测技术股份有限公司广东518300

柔性电路板在我国轨道交通的发展中起到了关键的信息化支持作用,高稳定的压敏胶是FPC器件长效稳定运行的重要基础。本文介绍了轨道交通用FPC器件的压敏胶纸与背光发生分离失效原因分析的案例。利用光学形貌分析,得出提高压敏胶与粘贴表... 详细信息

柔性电路板在我国轨道交通的发展中起到了关键的信息化支持作用,高稳定的压敏胶是FPC器件长效稳定运行的重要基础。本文介绍了轨道交通用FPC器件的压敏胶纸与背光发生分离失效原因分析的案例。利用光学形貌分析,得出提高压敏胶与粘贴表面接触程度和胶料量有利于提高粘接强度;表面接触角分析表明离型膜对胶纸的影响较小;红外光谱、飞行时间二次离子质谱和气相质谱联用表明失效样中丙烯酸丁酯单体和萜烯树脂偏少,这些成分会影响胶的初粘力和粘结力,导致胶纸与背光发生分离。通过分析压敏胶纸与背光发生分离的原因,提出了提高粘接强度的方法,为轨道交通用FPC器件的稳定运行提供了关键支持。

关键词：轨道交通压敏胶失效粘接性

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轨道交通用防护涂料研究进展

山东化工 2024年第13期53卷 126-129页

作者：宗建平郑宏业王丽娟张伟曾志卫中车唐山机车车辆有限公司河北唐山064000 深圳市美信检测技术股份有限公司广东深圳518108

随着城市化进程的加快和交通需求的增长,轨道交通的安全性和可靠性日益受到关注。轨道交通运输工具长年累月遭受环境、机械应力和化学腐蚀等影响,涂层防护是解决这一问题的关键环节之一。介绍了轨道交通涂层影响因素和水性涂料研究及应... 详细信息

随着城市化进程的加快和交通需求的增长,轨道交通的安全性和可靠性日益受到关注。轨道交通运输工具长年累月遭受环境、机械应力和化学腐蚀等影响,涂层防护是解决这一问题的关键环节之一。介绍了轨道交通涂层影响因素和水性涂料研究及应用现状,并对轨道交通用防护涂料未来技术创新和发展趋势进行展望。

关键词：轨道交通涂层防护影响因素水性涂料

Industrial-scale investigations on effects of tertiary-air declination angle on combustion and steam temperature characteristics in a 350-MW supercritical down-fired boiler

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Frontiers in Energy 2021年第1期15卷 132-142页

作者： Xiaoguang LI Lingyan zeng hongye LIU Yao LI Yifu LI Yunlong ZHAO Bo JIAO Minhang SONG Shaofeng ZHANG Zhichao CHEN Zhengqi LI School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China Guizhou Wanfeng Electric Power Co. Ltd.Xingyi 562400China Guizhou Xingyi Project Department Huadian United(Beijing)Power Engineering Co.Ltd.Xingyi 562400China

Industrial-scale experiments were conducted to study the effects of tertiary air declination angle(TDA)on the coal combustion and steam temperature characteristics in the first 350-MW supercritical down-fired boiler in China with the multiple-injection and multiple-staging combustion(MIMSC)technology at medium and high *** experimental results indicated that as the TDA increased from 0°to 15°,the overall gas temperature in the lower furnace rose and the symmetry of temperature field was *** ignition distance of the fuel-rich coal/air flow *** near-burner region,the concentration of O2 decreased while the concentrations of CO and NO *** concentration of NO decreased in near-tertiary-air *** carbon in fly ash decreased significantly from 8.40%to 6.45%at a load of 260 *** a TDA of 15°,the ignition distances were the shortest(2.07 m and 1.73 m)at a load of 210 MW and 260 MW,*** main and reheat steam temperatures were the highest(557.2℃ and 559.4℃ at a load of 210 MW,558.4℃ and 560.3℃ at a load of 260 MW).The carbon in fly ash was the lowest(4.83%)at a load of 210 *** changing the TDA from 15°to 25°,the flame kernel was found to move downward and the main and reheat steam temperatures dropped *** change of TDA has little effect on NO_(x) emissions(660–681 mg/m^(3) at 6%O_(2)).In comprehensive consideration of the pulverized coal combustion characteristics and the unit economic performance,an optimal TDA of 15°is recommended.

关键词： supercritical down-fired boiler industrialscale experiment tertiary air declination angle coal combustion steamtemperature

Analytical Model for the Influence by In-wheel Motor Drive on a Novel Double Wishbone Suspension

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Analytical Model for the Influence by In-wheel Motor Drive o...