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Mossbauer study of reactions of Sn[Fe(CN)_6] on supports

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Chinese Journal of Chemistry 1997年第1期15卷 31-34页

作者： HUA, Wan-Sen chen, Shou-wen yang, Xu-Jie LU, Lu-De WANG, XinMaterials Chemistry Laboratory, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China Materials Chemistry Laboratory Nanjing University of Science and Technology Nanjing Jiangsu 210094 China

Mossbauer spectroscopy has been applied to the investigation of reaction of Sn[Fe(CN)6] on magnesia, 7-alumina, silica and activated carbon. It was found that the thermal decomposition products of supported Sn[Fe(CN)6] are quite different from those of the unsupported one as a result of the interaction between the complex and supports. The supports could promote the oxidation in the air atmosphere and their effect led to high dispersion of the decomposition products on the surface.

关键词： Sn[Fe(CN)6] support decomposition Mossbauer spectra

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砷/氢/氧体系中均相反应机理的研究

燃料化学学报 2021年第7期49卷 918-923页

作者：熊中朴于洋陈文洋陈娟山东大学能源与动力工程学院山东济南250061

采用量子化学的方法,利用量子化学软件Gaussian09和GaussView,在B3LYP/6-311G(3df,3pd)理论水平下,对砷/氢/氧体系燃烧反应的微观机理进行研究。优化了13个基元反应的反应物、中间体、过渡态以及产物的构型,并通过振动频率和内禀反应坐... 详细信息

采用量子化学的方法,利用量子化学软件Gaussian09和GaussView,在B3LYP/6-311G(3df,3pd)理论水平下,对砷/氢/氧体系燃烧反应的微观机理进行研究。优化了13个基元反应的反应物、中间体、过渡态以及产物的构型,并通过振动频率和内禀反应坐标验证反应真实性。采用KiSThelP软件包基于传统过渡态理论拟合计算出动力学参数。本研究对砷燃烧体系中部分重要基元反应进行研究,便于后续建立砷的燃烧动力学模型。

关键词：燃煤砷微观机理 DFT

Crohn's disease in Japanese is associated with a SNP-haplotype of N-acetyltransferase 2 gene

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World Journal of Gastroenterology 2005年第31期11卷 4833-4837页

作者： Haruhisa Machida Kazuhiro Tsukamoto Chun-yang wen Saburou Shikuwa Hajime Isomoto Yohei Mizuta Fuminao Takeshima Kunihiko Murase Naomichi Matsumoto Ikuo Murata Shigeru Kohno chen-yang wen Second Department of Internal Medicine Nagasaki University School of Medicine 1-7-1 Sakamoto Nagasaki 852-8501 Japan Department of Pharmaco-therapeutics Nagasaki University Graduate School of Biomedical Sciences 1-14 Bunkyo-machi Nagasaki 852-8521 Japan Department of Molecular Pathology Atomic Bomb Disease Institute Nagasaki University Graduate School of Biomedical Sciences 1-12-4 Sakamoto Nagasaki 852-8523 Japan Department of DigestiveDisease The Affiliated Drum Tower Hospital of Nanjing University Medical School Nanjing 210008 Jiangsu Province China Department of Gastroenterology National Hospital Organization Nagasaki Medical Center 2-1001-1 KubaraOmura 856-8562 Japan Department of Human Genetics Nagasaki University Graduate School of Biomedical Sciences 1-12-4 SakamotoNagasaki 852-8523 Japan

AIM： To investigate the frequency and distribution of /V-acetyltransferase 2 （NAT2） and uridine 5＇-diphosphate （UDP）-glucuronosyltransferase 1A7 （UGT1A7） genes in patients with ulcerative colitis （UC） and Crohn＇s disease （CD）. METHODS： Frequencies and distributions of IVAT2 and UGT1A7SNPs as well as their haplotypes were investigated in 95 patients with UC, 60 patients with CD, and 200 gender-matched, unrelated, healthy, control volunteers by PCR-restriction fragment length polymorphism （RFLP）, PCR-denaturing high-performance liquid chromatography （DHPLC）, and direct DNA sequencing. RESULTS： Multiple logistic regression analysis revealed that the frequency of haplotype, NAT2＊7B, significantly increased in CD patients, compared to that in controls （P= 0.0130, OR = 2.802, 95%CI = 1.243-6.316）. However, there was no association between NAT2 haplotypes and UC, or between any UGT1A7haplotypes and inflammatory bowel disease （IBD）. CONCLUSION： It is likely that the NAT2 gene is one ofthe determinants for CD in Japanese. Alternatively, a new CD determinant may exist in the 8p22 region, where NAT2 is located.

关键词： Crohn's disease N-acetyltransferase 2 gene Polymorphism Disease-susceptible gene Association study Japanese population

多小区多用户下行能效优化波束成形的分布式实现算法

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通信学报 2015年第10期36卷 245-251页

作者：陈文阳何世文黄永明杨绿溪东南大学信息科学与工程学院江苏南京210096

针对多小区多用户下行链路通信系统,研究了能效优化波束成形的分布式实现算法。首先,能效优化问题描述为系统加权和速率与系统能量损耗之比的最大化问题,利用分数规划理论将分数形式的优化目标转化成多项式减法形式。其次,引入认知无线... 详细信息

针对多小区多用户下行链路通信系统,研究了能效优化波束成形的分布式实现算法。首先,能效优化问题描述为系统加权和速率与系统能量损耗之比的最大化问题,利用分数规划理论将分数形式的优化目标转化成多项式减法形式。其次,引入认知无线电中的干扰温度的概念,将优化问题转化为多个分布式求解的子问题。最后,利用拉格朗日对偶及分步优化理论,提出了一种能效优化波束成形的分布式实现算法。通过仿真结果表明,相对于传统的能效优化算法,所提算法可获得明显的能效性能增益。

关键词：分布式实现能效优化分数规划干扰温度波束成形

Role of the Greenland Sea ice anomaly in the late-spring drought over Northwest China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 1-5页

作者： yang Liu Huopo chen Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of SciencesBeijingChina Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University for Information Science and TechnologyNanjingChina

Drought across Northwest China in late spring has exerted a vital effect on the local climate and agricultural production,and has been alleviated during the past *** study explored the influence of the preceding Arctic sea ice on the May drought in Northwest China caused by the precipitation *** analysis indicated that when the Greenland Sea ice concentration is abnormally high during February to April,the dry conditions in Northwest China tend to be *** increase of sea ice in the Greenland Sea can excite a meridional circulation,which causes sea surface temperature(SST)anomalies in the North Atlantic via the sea-air interaction,manifested as significant warm SST anomalies over the south of Greenland and the subtropical North Atlantic,but negative SST anomalies over the west of the *** abnormal SST pattern maintains to May and triggers a zonal wave train from the North Atlantic through Scandinavia and Central Asia to Northwest China,leading to abnormal cyclones in Northwest ***,Northwest China experiences a more humid climate than usual.

关键词： Arctic sea ice Greenland Sea North Atlantic SST Drought Northwest China

Study on Braking Energy Regeneration System for City Bus

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International Journal of Plant Engineering and Management 2011年第3期16卷 150-156页

作者： ZOU Zheng-yao chen Ru-wen yang Xue-mei LIU Gou-bing JIN Jia-jun Nanjing Institute of Technology Nanjing 211167 P. R. China

Braking of the urban vehicles of public service wastes a large number of engine energy in the condition of starting and stopping frequently. Aiming at the problem, an electro-mechanical braking energy regeneration system was proposed which adopted a high-speed flywheel and a battery to recover the braking energy and achieve the secondary traction for the auxiliary start function. The system strategy was designed and the braking simulation was processed to validate its feasibility. The experiment results show that the system can effectively recover the braking energy, improve the starting performance of the city bus and it can be applied to the engineering.

关键词： urban vehicles of public service braking energy regeneration flywheel started booster

Infantile hepatic hemangioendothelioma:A clinicopathologic study in a Chinese population

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World Journal of Gastroenterology 2010年第36期16卷 4549-4557页

作者： Zhang Zhang,Hui-Jiao chen,wen-Juan yang,Hong Bu,Bing Wei,Xiao-Yu Long,Jing Fu,Rui Zhang,Yun-Bi Ni,Hong-Ying Zhang,Department of Pathology,West China Hospital,Sichuan University,Guoxuexiang 37,chengdu 610041,Sichuan Province,China Department of Pathology West China Hospital Sichuan University Guoxuexiang 37 Chengdu 610041 Sichuan Province China. hy_zhang@***

AIM:To investigate whether the clinicopathologic features of infantile hemangioendothelioma(IHE) of the liver in a Chinese population are similar to the features observed in other ***:The clinical data,radiological findings,histopathological changes and outcome of 12 cases of IHE diagnosed by the Department of Pathology,West China Hospital over the last 10 years were analyzed *** studies were carried out using antibodies against CD31,CD34,Factor Ⅷ,cytokeratin 8 and cytokeratin ***:The 12 patients were aged from fetal to 5 years(three males and nine females).The tumor was presented with different clinical manifestations,mainly as an asymptomatic,palpable,upper abdominal mass,except for the two fetuses who were detected antena-tally by *** one patient,this presentation was accompanied by an initial severe *** symptoms of congestive heart failure were present and neither congenital abnormalities nor vascular tumors in the skin or other organs were *** abnormalities included leukocytosis(40%),anemia(60%),thrombocytosis(60%),hyperbilirubinemia(16.7%),abnormal liver function(50%) and increased α-fetoprotein(80%).Based on radiological findings and gross specimens,the tumor presented as a solitary lesion or a multifocal space-occupying *** tumor size ranged from 5.0 cm × 3.5 cm × 2.0 cm to 13.8 cm × 9.0 cm × 7.7 cm,and the 0.2-1.1 cm nodules were diffusely distributed within the multifocal *** cases were surgically resected,three cases underwent biopsy and the two fetuses were ***,nine cases were classified as typeⅠ and three as type Ⅱ,presenting aggressive morphologic features,immature vessels,active mitosis and *** inflammatory component,predominantly eosinophilic granulocytes,sometimes obscured the nature of the *** patients are alive after a follow-up of 1-9 *** on immunohistochemistry,the endothelial cells in all cases were positiv

关键词： Infantile haemangioendothelioma Pediatrics Hepatic neoplasm Pathological diagnoses Chinese

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming Zhang Hanyu Wu Qi chen Jiaxin yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

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硅纳米线拉曼光谱的研究

光谱学与光谱分析 2007年第4期27卷 725-729页

作者：谭艳唐元洪裴立宅陈扬文湖南大学材料科学与工程学院湖南长沙410082

声子限制效应会引起本征硅纳米线拉曼光谱红移及不对称宽化,但研究发现其并非引起硅纳米线拉曼光谱改变的主要因素。研究表明,由于在拉曼光谱测量中,通常使用的入射激光功率都在5mW以上,激光加热会导致很高的局部温度,从而引起拉曼光谱... 详细信息

声子限制效应会引起本征硅纳米线拉曼光谱红移及不对称宽化,但研究发现其并非引起硅纳米线拉曼光谱改变的主要因素。研究表明,由于在拉曼光谱测量中,通常使用的入射激光功率都在5mW以上,激光加热会导致很高的局部温度,从而引起拉曼光谱大幅度红移并对称宽化,这是硅纳米线拉曼光谱红移的主要影响因素。另外,激光功率很高时,由激光激发的载流子会与声子发生Fano型干涉,从而使硅纳米线拉曼光谱发生Fano型红移和不对称宽化。除此之外,对小直径本征硅纳米线,声子限制效应导致波矢选择定弛则弛豫,使不在布里渊区中心的声子也可以参与拉曼散射,因而其拉曼光谱中除常见的几个拉曼峰外还会出现新拉曼峰。

关键词：硅纳米线拉曼光谱红移不对称宽化声子限制效应激光加热效应 Fano型干涉