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Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney

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Acta Metallurgica Sinica(English Letters) 2015年第4期28卷 477-486页

作者： Zheng-Bing Wang Hong-Xiang Hu chun-bo liu Huai-Ning Chen Yu-Gui Zheng Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of Sciences Center for Wear and Corrosion Resistant Materials Huadian Zhengzhou Mechanical Design Institute Co.Ltd. Laboratory of Properties and Reliable Joining of Welded Joints Institute of Metal ResearchChinese Academy of Sciences

The corrosion behaviors of pure titanium and its weldment welded by tungsten inert gas （TIG） welding in simulated desulfurized flue gas condensates in thermal power plant chimney were investigated using potentiodynamic polarization, electrochemical impedance spectroscopy （EIS） and immersion tests. The effects of heat input and shielding gases on the corrosion behavior of the welded titanium were also studied. Grain coarsening and Widmanst^itten structure were found in both the fusion zone and the heat-affected zone. The welded titanium exhibited active-passive behavior in the simulated condensates. both the polarization curves and EIS measurements confirmed that TIG welding process with different parameters had few effects on the corrosion behavior. It was proved that the microstructure changes were not the key material factors affecting the corrosion behavior of pure titanium under the test conditions, while the oxide film had remarkable effect on improving the corrosion resistance.

关键词： Pure titanium Tungsten inert gas welding Simulated desulfurized flue gas condensates Corrosion behavior Microstructure Oxide film

Sesquiterpenes from the leaves of Nicotiana tabacum and their anti-tobacco mosaic virus activity

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Chinese Chemical Letters 2016年第5期27卷 753-756页

作者： Qin-Peng Shen Xing-Meng Xu Lan Li Wei Zhao Neng-Jun Xiang Guang-Yu Yang Yong-Kuan Chen Ming-Ming Miao chun-bo liu Zhi-Hua liu Key Laboratory of Tobacco Chemistry of Yunnan Province China Tobacco Yunnan Industrial Co. Ltd. School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Nature Products Kunming Medical University

In searching for more bioactive compounds, phytochemical investigations on the acetone extract of the leaves ofNicotiana tabacurn resulted in the isolation of two new sesquiterpenes, nicosesquiterpene A and B （1 and 2）, along with four known sesquiterpene derivatives （3-6）. Structural elucidation of I and 2 was performed by spectral methods, such as HRMS, IR, UV, 1D and 2D NMR spectroscopy. Compounds 1 and 2 are the first naturally occurring pterosin-type sesquiterpene bearing an isopropyl moiety. Compounds 1-6 were also evaluated for their anti-tobacco mosaic virus （anti-TMV） activity. The results showed that compounds 1 and 2 exhibited high anti-TMV activity with inhibition rates of 36.7% and 45.6%, respectively, which is higher than that of positive control. The other compounds also showed potential activity with inhibition rates in the range of 22.7%-29.2%.

关键词： Sesquiterpenes Anti-tobacco mosaic virus activity (AntiTMV) Nicotiana tabacum Structural elucidation Ningnanmycin

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芳烃捕收剂的结构对浮选性能的影响

中国矿业大学学报 2012年第1期41卷 82-85页

作者：周长春阎波刘炯天中国矿业大学化工学院江苏徐州221116

通过测定煤泥与药剂作用前后的Zeta电位、接触角、气-液表面张力以及红外光谱,研究了单取代苯、双取代苯和双取代萘3类芳烃捕收剂的结构对浮选活性的影响,探讨了煤与芳烃捕收剂的吸附作用机理.结果表明:3类芳烃捕收剂浮选活性大小依次为... 详细信息

通过测定煤泥与药剂作用前后的Zeta电位、接触角、气-液表面张力以及红外光谱,研究了单取代苯、双取代苯和双取代萘3类芳烃捕收剂的结构对浮选活性的影响,探讨了煤与芳烃捕收剂的吸附作用机理.结果表明:3类芳烃捕收剂浮选活性大小依次为:双取代萘>双取代苯>单取代苯;当芳烃捕收剂的苯环个数相等时,其浮选活性的差异主要取决于最长取代基的碳原子个数,其它取代基起辅助作用,而且取代基越多浮选活性越强;当最长取代基碳原子个数为5时,其浮选效果最佳;芳烃捕收剂与煤中的烷基、胺基和醚键作用属于化学吸附.

关键词：芳烃捕收剂结构煤泥浮选性能

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纳米氧化亚铜光催化降解N-甲酰吗啉的性能

哈尔滨商业大学学报（自然科学版） 2017年第1期33卷 37-40页

作者：车春波刘悦哈尔滨商业大学食品工程学院环境工程系哈尔滨150076 哈尔滨商业大学研究生学院哈尔滨150076

采用液相还原法制备了Cu_2O粉体,利用X射线衍射(XRD)和扫描电镜(SEM)对其结构和组分进行表征,结果表明,实验制备的产品为平均粒径在75 nm左右的纳米级多边形结构Cu_2O晶体.以自然光为光源,对N-甲酰吗啉(NFM)溶液进行光催化降解实验,实... 详细信息

采用液相还原法制备了Cu_2O粉体,利用X射线衍射(XRD)和扫描电镜(SEM)对其结构和组分进行表征,结果表明,实验制备的产品为平均粒径在75 nm左右的纳米级多边形结构Cu_2O晶体.以自然光为光源,对N-甲酰吗啉(NFM)溶液进行光催化降解实验,实验结果证实所制备的纳米Cu_2O在可见光下具有良好的光催化活性,并表现出了很好的可重复利用性能.

关键词：液相还原法纳米氧化亚铜 N-甲酰吗啉光催化降解

The Discovery of a Novel Thyroid Hormone Receptor β Isoform

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The Discovery of a Novel Thyroid Hormone Receptor β Isoform

Solution‑Processed Thin Film Transparent Photovoltaics:Present Challenges and Future Development

2008年全国生物化学与分子生物学学术大会

作者： Bei Sun Ai-jun Zuo Dong-chun Liang Ming-bo liu Ying liu Gang Guo Jing-yu Zhang (Biochemistry and Molecular biology Lab,Institute of Endocrinology,Tianjin Medical University,Tianjin 300070)

Thyroid hormone (TH) actions are mediated by multiple-isoforms of TH receptors (TRs).There are nine TR isoforms in mammalian were reported up to *** isoforms of TR α1,α2,α3,truncated TR Δα 1 and TR Δα2 (the antisense Rev-erbA α is not included) are generated from TR α gene,while four sub- types of TR β1,β2,β3 and truncated TR Δβ3 are from TR β genomic locus.

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Nano-Micro Letters 2025年第2期17卷 566-600页

作者： Tianle liu Munerah M.S.Almutairi Jie Ma Aisling Stewart Zhaohui Xing Mengxia liu bo Hou Yuljae Cho UM-SJTU Joint Institute Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Physics and Astronomy Cardiff UniversityCardiff CF243AAWalesUK Department of Electrical and Computer Engineering Yale UniversityNew HavenCT 06511USA Energy Sciences Institute Yale UniversityWest HavenCT 06516USA Future Photovoltaics Research Center Global Institute of Future TechnologyShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Electrical energy is essential for modern society to sustain economic *** soaring demand for the electrical energy,together with an awareness of the environmental impact of fossil fuels,has been driving a shift towards the utilization of solar ***,traditional solar energy solutions often require extensive spaces for a panel installation,limiting their practicality in a dense urban *** overcome the spatial constraint,researchers have developed transparent photovoltaics(TPV),enabling windows and facades in vehicles and buildings to generate electric *** TPV advancements are focused on improving both transparency and power output to rival commercially available silicon solar *** this review,we first briefly introduce wavelength-and non-wavelengthselective strategies to achieve *** of merit and theoretical limits of TPVs are discussed to comprehensively understand the status of current TPV *** we highlight recent progress in different types of TPVs,with a particular focus on solution-processed thin-film photovoltaics(PVs),including colloidal quantum dot PVs,metal halide perovskite PVs and organic *** applications of TPVs are also reviewed,with emphasis on agrivoltaics,smart windows and ***,current challenges and future opportunities in TPV research are pointed out.

关键词： Transparent semiconductors Solution-processable transparent solar cell Emerging solar cell materials Buildingintegrated photovoltaics

A Facile Synthesis of 3-Arylbenzothiophenes

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A Facile Synthesis of 3-Arylbenzothiophenes

ICA-Net: improving class activation for weakly supervised semantic segmentation via joint contrastive and simulation learning

中国化学会第四届有机化学学术会议

作者： YANG, chun-Hao liu, bo XU, Guang-Yu XIE,Yu-Yuan (State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Science, Shanghai 201203)

＜正＞Benzothiophene derivatives exhibit a variety of biological properties. Although there are general methods to synthesize 2-arylbenzothiophene, few methods are available for 3-arylbenzothiophene. These methods are usually not satisfactory due to toxic reagent or tedious workup procedure: catalyst should be activated over 300℃, the generated water should be removed from the reaction mixture and product isolation need expensive HPLC instrument.

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Optoelectronics Letters 2025年第3期 188-192页

作者： YE Zhuang liu Ruyu SUN bo School of Information Engineering Chengdu Aviation Vocational and Technical College School of Computer Science and Engineering Hangzhou Normal University Quanzhou Institute of Equipment Manufacturing Haixi Institutes Chinese Academy of Sciences

In the field of optoelectronics, certain types of data may be difficult to accurately annotate, such as high-resolution optoelectronic imaging or imaging in certain special spectral ranges. Weakly supervised learning can provide a more reliable approach in these situations. Current popular approaches mainly adopt the classification-based class activation maps (CAM) as initial pseudo labels to solve the task.

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The Citron homology domain of MAP4Ks improves outcomes of traumatic brain injury

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Neural Regeneration Research 2025年第11期20卷 3233-3244页

作者： Xiaoling Zhong Wenjiao Tai Meng-Lu liu Shuaipeng Ma Tianjin Shen Yuhua Zou chun-Li Zhang Department of Molecular Biology University of Texas Southwestern Medical CenterDallasTXUSA Hamon Center for Regenerative Science and Medicine University of Texas Southwestern Medical CenterDallasTXUSA Peter O’Donnell Jr.Brain Institute University of Texas Southwestern Medical CenterDallasTXUSA

The mitogen-activated protein kinase kinase kinase kinases(MAP4Ks)signaling pathway plays a pivotal role in axonal regrowth and neuronal degeneration following *** targeting this pathway is beneficial to brain injury remains *** this study,we showed that adeno-associated virus-delivery of the Citron homology domain of MAP4Ks effectively reduces traumatic brain injury-induced reactive gliosis,tauopathy,lesion size,and behavioral *** inhibition of MAP4Ks replicated the ameliorative effects observed with expression of the Citron homology ***,the Citron homology domain acted as a dominant-negative mutant,impeding MAP4K-mediated phosphorylation of the dishevelled proteins and thereby controlling the Wnt/β-catenin *** findings implicate a therapeutic potential of targeting MAP4Ks to alleviate the detrimental effects of traumatic brain injury.

关键词： adeno-associated virus Citron homology Citron homology domain gene therapy mitogen-activated protein kinase kinase kinase kinases traumatic brain injury