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Rare Metals 2021年第10期40卷 2862-2867页

作者： zhong-ping zhao Qi Guo Feng-Hua Chen Ke-Wei Zhang Yong Jiang School of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China

Noncollinear antiferromagnetic Mn_(3)Sn films have received much attention due to their potential applications in antiferromagnetic spintronic devices. In this work, single-phase polycrystalline antiferromagnetic Mn_(3)Sn thin films were successfully prepared by magnetron sputtering. The defects in the thin films were regulated by adjusting the sputtering power. The relationship among the films structure, the anomalous Hall effect(AHE) and the defects was investigated. High defect concentration in the Mn_(3)Sn films led to large room temperature ferromagnetic moments. The maximum saturation magnetization reached up to ~16 k A·m^(-1)(36 mlB/Mn), which was much larger than the values reported in literatures. The coercive field of38 mT was obtained in a high-quality Mn_(3)Sn film, which effectively reduced the flipping magnetic field. Moreover,the anomalous Hall resistance and coercive field of the Mn_(3)Sn films prepared on the ferroelectric substrates were manipulated through an applied electric field, indicating that the piezoelectric stress has a great influence on the nonzero Berry curvature of the triangular spin structure in the antiferromagnetic materials. These results will promote the potential application of Mn_(3)Sn in high-density and lowpower antiferromagnetic spintronic devices.

关键词： Noncollinear antiferromagnet Mn_(3)Sn Anomalous Hall effect Ferromagnetic moment Electric field manipulation

Fluidized-bed pyrolysis of waste bamboo

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第9期8卷 1495-1499页

作者： XIAO Gang NI Ming-jiang HUANG He CHI Yong XIAO Rui zhong zhao-ping CEN Ke-fa Key Lab. on Clean Coal Power Generation and Combustion Technology of Ministry of Education School of Energ3＂ and Environment Southeast University Nanjing 210096. China State Key Lab. of Clean Energy Utilization College of Mechanical and Energy Engineering Zhejiang University Hangzhou 310027 China College of Lfe Science and Pharmaceutical Engineering Nanjing University of Technology Nanjing 210009 China

Bamboo was a popular material substituting for wood, especially for one-off commodity in China. In order to recover energy and materials from waste bamboo, the basic characteristics of bamboo pyrolysis were studied by a thermogravimetric analyzer. It implied that the reaction began at 190-210℃, and the percentage of solid product deceased from about 25% to 17% when temperature ranged from 400℃ to 700℃. A lab-scale fluidized-bed furnace was setup to research the detailed properties of gaseous, liquid and solid products respectively. When temperature increased from 400℃ to 700℃, the mass percent of solid product decreased from 27% to 17% approximately, while that of syngas rose up from 19% to 35%. When temperature was about 500℃, the percentage of tar reached the top, about 31%. The mass balance of these experiments was about 93%-95%. It indicated that three reactions involved in the process： pyrolysis of exterior bamboo, pyrolysis of interior bamboo and secondary pyrolysis of heavy tar.

关键词： Bamboo Pyrolysis Fluidized beds Syngas Tar

Proteomic analysis of the immune response of the silkworm infected by Escherichia coli and Bacillus bombyseptieus

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Insect Science 2012年第5期19卷 559-569页

作者： Xiao-Wu zhong ping zhao Yong Zou Hong-Yi Nie Qi-Ying Yi Qing-You Xia zhong-Huai Xiang The Key Sericultural Laboratory of Agriculture Ministry Southwest University Chongqing China

he silkworm, Bombyx mori, is an economically important insect with a 5 000-year history of domestication. During evolution, the silkworm has developed highly effective defenses against invasion and parasitization by microorganisms. In this study, two microorganisms Escherichia coli and Bacillus bombyseptieus were orally infected to silk- worm larvae. After infection with E. coli and B. bombyseptieus for 24 h, we investigated the polypeptide changes in the hemolymph, midgut and integument using two-dimensional gel electrophoresis and matrix-assisted laser desorption ionization time of flight mass spec- trometry. Forty-seven differentially expressed proteins were identified in these tissues. They belonged to a variety of functional classes, including immune proteins, metabolic proteins and structural proteins. Compared with controls, E. coli-infected silkworms showed 21 up- regulated proteins, 25 down-regulated proteins and lost one protein. After infection with B. bombyseptieus, silkworms showed 15 up-regulated proteins, 27 down-regulated pro- teins, lost three proteins and retained two proteins unchanged. We speculate that all these proteins may play a role in the silkworm immune response, although it is unclear why and how the two kinds of bacteria can so markedly alter expression of these proteins. These re- sults offer valuable insights for measuring the proteomic responses of the silkworm innate immune mechanism.

关键词： Bacillus bombyseptieus Escherichia coli immune response proteomics silkworm

Photocatalytic oxidation of nitric oxide from simulated flue gas by wet scrubbing using ultraviolet/TiO_2/H_2O_2 process

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Journal of Central South University 2015年第1期22卷 82-87页

作者：张波仲兆平付宗明 Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education(School of Energy and Environment Southeast University)

Nitric oxide(NO) from flue gas is hard to remove because of low solubility and reactivity. A new technology for photocatalytic oxidation of NO using ultraviolet(UV)/TiO2/H2O2 process is studied in an efficient laboratory-scale reactor. Effects of several key operational parameters on NO removal efficiency are studied, including TiO2 content, H2O2 initial concentration, UV lamp power, NO initial content, oxygen volume fraction and TiO2/H2O2 solution volume. The results illustrate that the NO removal efficiency increases with the increasing of H2O2 initial concentration or UV lamp power. Meanwhile, a lower NO initial content or a higher TiO2/H2O2 solution volume will result in higher NO removal efficiency. In addition, oxygen volume fraction has a little *** highest NO removal efficiency is achieved at the TiO2 content of 0.75 g/L, H2O2 initial concentration of 2.5 mol/L, UV lamp power of 36 W, NO initial content of 206×10-6 and TiO2/H2O2 solution volume of 600 m L. It is beneficial for the development and application of NO removal from coal-fired flue gas with UV/TiO2/H2O2 process.

关键词： photocatalytic oxidation nitric oxide UV/TiO2/H2O2 process

Experimental study on MSW gasification and melting technology

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Journal of Environmental Sciences 2007年第11期19卷 1398-1403页

作者： XIAO Gang JIN Bao-sheng zhong zhao-ping CHI Yong NI Ming-jiang CEN Ke-fa XIAO Rui HUANG Ya-ji HUANG He Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education School of Energy and Environment Southeast University Nanjing 210096 China State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China College of Life Science and Pharmaceutical Engineering Nanjing University of Technology Nanjing 210009 China

In order to develop municipal solid waste （MSW） gasification and melting technology, two preliminary experiments and a principle integrated experiment were fulfilled respectively. The gasification characteristics of MSW were studied at 500-750℃ when equivalence ratio （ER） was 0.2--0.5 using a fluidized-bed gasifier. When temperature was 550-700℃ and ER was 0.2--0.4, low heat value （LHV） of syngas reaches 4000-12000 kJ/Nm^3. The melting characteristics of fly ash were investigated at 1100-1460℃ using a fixed-bed furnace. It was proved that over 99.9% of dioxins could be decomposed and most heavy-metals could be solidified when temperature was 1100-1300℃. The principle integrated experiment was carried out in a fluidized-bed gasification and swirl-melting system. MSW was gasified etticiently at 550-650℃, swirl-melting furnace maintains at 1200-1300℃ stably and over 95% of fly ash could be caught by the swirl-melting furnace. The results provided much practical experience and basic data to develop MSW gasification and melting technology.

关键词： municipal solid waste (MSW) fluidized-bed gasification swirl-melting characteristics

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蜂窝状SCR脱硝催化剂成型配方选择

中国环境科学 2013年第12期33卷 2148-2156页

作者：姚杰仲兆平东南大学能源热转换及其过程测控教育部重点实验室江苏南京210096

通过对钒钛基蜂窝状SCR脱硝催化剂的制备工艺研究,探索了二氧化钛(TiO2)载体及成型剂配方对产品机械性能及脱硝活性的影响.分别选用工业级硫酸法锐钛型TiO2和进口商业纳米锐钛型TiO2为载体原料,所考察的主成型剂包括二氧化硅(SiO2),活... 详细信息

通过对钒钛基蜂窝状SCR脱硝催化剂的制备工艺研究,探索了二氧化钛(TiO2)载体及成型剂配方对产品机械性能及脱硝活性的影响.分别选用工业级硫酸法锐钛型TiO2和进口商业纳米锐钛型TiO2为载体原料,所考察的主成型剂包括二氧化硅(SiO2),活性氧化铝(γ-Al2O3),以及SiO2和硼酸(H3BO3)的混合粉体.进一步对载体及所制备催化剂样品进行表征,机械强度及脱硝活性测试.结果表明,商业纳米级TiO2较工业级TiO2在杂质含量、粉体粒径、分散度等方面占有明显优势,但TiO2晶粒尺寸要高于后者,比表面积亦低于工业级样品.在SCR催化剂制备上,相对工业级TiO2而言商业纳米级TiO2制备样获得了较高的机械强度,但其在脱硝活性方面并不占有优势.而对主成型剂配方的探索显示,以SiO2与H3BO3按一定比例混合得到的成型剂配方不但能够显著提高蜂窝状催化剂的机械性能,另一方面也能够维持其较高的脱硝活性,因此该配方作为钒钛基SCR催化剂的成型剂是合理可行的.

关键词： SCR脱硝催化剂 TiO2载体成型剂机械强度

Comparison between sequential and single extraction procedures for metal speciation in fresh and dried Sedum Plumbizincicola

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Journal of Central South University 2015年第2期22卷 487-494页

作者：宋祖威仲兆平钟道旭吴龙华骆永明 Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education(School of Energy and Environment Southeast University) Key Laboratory of Soil Environment and Pollution Remediation(Institute of Soil Science Chinese Academy of Sciences)

Sequential and single extraction procedures were applied to both fresh and dried Sedum Plumbizincicola leaves and *** extractants, different from those of soil, sediment or sewage sludge metal fractions, were water, 80%(v/v) ethanol, 1 mol/L Na Cl,2% HAc and 0.6 mol/L HCl. Zn, Cd and Cu in the extracts and samples were measured by flame atomic adsorption spectrometry. In sequential extraction procedures, water soluble form and ethanol soluble form are the main fractions for Zn, while water soluble form and Na Cl soluble form for Cd, and comparatively uniform distribution for Cu with the residue form most and HCl soluble form second. Single extraction procedures are used to compare the extraction efficiencies of the five reagents to screen appropriate extractants and operating conditions for liquid extraction to deal with large amount of harvested metal-contained biomass, which will pose a threat to the environment if treated improperly. The sequences of extraction efficiencies are HCl>Na Cl≈HAc>Water≈Ethanol for Zn and HCl≈Na Cl≈HAc>Water>Ethanol for Cd. As for Cu, all the five extractants cannot effectively extract Cu, but HCl achieves a higher efficiency(>70% in fresh samples, and 45%-60% in dried samples). Besides, extraction efficiencies for most extractants in fresh samples are higher than those in dried samples, and extraction efficiencies of stems and leaves for the five extractants are close. The two extraction procedures can obtain high degree of accuracy with the relative standard deviation(RSD)lower than 10%, and metal recoveries are controlled between 80%-120% with most of 90%-110%.

关键词： Sedum Plumbizincicola liquid extraction biomass disposal heavy metals

阿拉伯板块北缘Sinjar隆起西翼裂缝成因及启示

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西北大学学报（自然科学版） 2015年第1期45卷 107-116页

作者：赵中平西北大学大陆动力学国家重点实验室/地质学系陕西西安710069

对Sinjar隆起西翼始新世Jaddala组—渐新世Chilou组致密灰岩裂缝性储层的裂缝成因进行分析,为类似复杂构造环境的裂缝研究和裂缝性油气圈闭勘探提供借鉴。综合利用成像测井、地震、钻井液漏失、生产动态等资料,分析裂缝倾角、走向及纵... 详细信息

对Sinjar隆起西翼始新世Jaddala组—渐新世Chilou组致密灰岩裂缝性储层的裂缝成因进行分析,为类似复杂构造环境的裂缝研究和裂缝性油气圈闭勘探提供借鉴。综合利用成像测井、地震、钻井液漏失、生产动态等资料,分析裂缝倾角、走向及纵向和平面裂缝的发育特征,探讨构造活动与裂缝分布之间的成因关系。研究后认为,研究区近南北走向的这组高角度裂缝的形成是区域水平挤压应力场与研究区西侧深部压扭走滑共同作用的结果,其中压扭走滑作用形成了有效的裂缝性油气储集层;局部发育的近东西走向的低角度裂缝由层间滑动引起;平行于主要褶皱枢纽的纵张裂缝不发育,是由地层强烈隆升形成的似环状断裂吸收了岩石的挤压应变变形,导致没有产生有效的岩层弯曲所致。在类似复杂的构造背景下,由于多种构造作用、多期构造活动的叠加和相互影响,会减弱或增强某组裂缝的发育程度,导致裂缝分布与常见的模式有一定的差异。这一实例对于复杂构造背景下的裂缝性储层研究、裂缝性油气藏开发的井轨迹优化、致密储层领域的油气勘探等具有重要的启示。

关键词： Sinjar隆起裂缝压扭走滑褶皱

Endovascular recanalization of superior vena cava, brachiocephalic, and subclavian venous occlusions caused by nonmalignant lesions

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Chinese Medical Journal 2012年第10期125卷 1767-1771页

作者： YE Meng SHI Ya-xue HUANG Xiao-zhong zhao Yi-ping ZHANG Hao ZHANG Ji-wei Department of Vascular Surgery Renji Hospital Shanghai Jiao Tong University College of Medicine Shanghai 200001 China

Background Endovascular recanalization （EVR） is becoming the primary therapy for patients with central venous （brachiocephalic, subclavian, and superior vena cava） occlusion （CVO） caused by benign etiology. In this study, we retrospectively analyzed our experience in using EVR to treat benign CVO in 10 patients between April 2005 and September 2010. Methods The mean age of the patients was 65.3 years, 2/10 cases were female, and the origin of cause of CVO in 7/10 cases was the hemodialysis access in the upper extremity. The patients were treated with primary stent placement and evaluated with immediate technical success rate and post-interventional patency rate after the procedure. Results Eight patients were treated successfully with stent placement and experienced symptomatic relief immediately. No technical complications were observed during EVR treatment. Patients were followed up by ultrasonography and venography. Median follow-up was 13 months. Three patients required secondary procedures to maintain patency. Conclusions EVR is an effective and safe treatment in patients with benign CVO. It provides immediate symptom relief and maintains a continuous access for hemodialysis.

关键词： central vein, occlusion, endovascular stent hemodialysis

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烟气脱硫喷淋塔的数值模拟

化学工程 2007年第8期35卷 61-64页

作者：赵健植金保升仲兆平东南大学洁净煤发电及燃烧技术教育部重点实验室江苏南京210096

以计算流体力学为基础,在三维坐标系下采用标准k-ε双方程模型求解动量、能量和组分方程,结合浆滴蒸发模型及简化的浆滴脱硫反应模型,以Eu ler-Lagrange方法建立了喷淋塔内烟气脱硫的数值计算模型,模型计算结果与孔华的试验数据符合较... 详细信息

以计算流体力学为基础,在三维坐标系下采用标准k-ε双方程模型求解动量、能量和组分方程,结合浆滴蒸发模型及简化的浆滴脱硫反应模型,以Eu ler-Lagrange方法建立了喷淋塔内烟气脱硫的数值计算模型,模型计算结果与孔华的试验数据符合较好。模型计算结果表明,对于粒径小的喷淋液滴,其烟气脱硫反应和液滴蒸发主要发生在烟气进口附近,而随着液滴粒径的增大,液滴在塔内蒸发和脱硫反应的过程延长。同时,增加烟气温度、降低烟气中SO2的入口质量浓度以及增加液气比均有利于提高脱硫效率。文中模型相对于一维柱塞流模型,能够直观地显示出喷淋塔内的流场、温度场和组分质量浓度场的空间分布。

关键词：喷淋塔浆滴脱硫反应蒸发数值模拟