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Application of the Nutrient Cycling Model NuCM to a Forest Monitoring Site Exposed to Acidic Precipitation in China

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Pedosphere 2008年第6期18卷 681-690页

作者： zhu jian-hua YU Peng-Tao T. A. SOGN WANG Yan-Hui J. MULDER Research Institute of Forest Ecology and Environment Chinese Academy of Forestry and the Key Laboratory of Forest Ecology and Environment of the Chinese State Forestry Administration Beijing 100091 （China） Department of Plant and Environmental Sciences Agricultural University of Norway P.O. Box 5003 N-1430 Aas（Norway）

The nutrient cycling model NuCM is one of the most detailed models for simulating processes that influence nutrient cycling in forest ecosystems. A field study was conducted at Tieshanping, a Masson pine (Pinus massoniana Lamb.) forest site, in Chongqing, China, to monitor the impacts of acidic precipitation on nutrient cycling. NuCM simulations were compared with observed data from the study site. The model produced an approximate fit with the observed data. It simulated the mean annual soil solution concentrations in the two simulation years, whereas it sometimes failed to reproduce seasonal variation. Even though some of the parameters required by model running were measured in the field, some others were still highly uncertain and the uncertainties were analyzed. Some of the uncertain parameters necessary for model running should be measured and calibrated to produce a better fit between modeled results and field data.

关键词： acid rain forest soil nutrient cycling model simulation

New insight into the origin and evolution of the flora and fauna of Hainan Island, China

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Science China Earth Sciences 2025年第1期68卷 52-61页

作者： hua zhu Center for Integrative Conservation Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation Yunnan Key Laboratory for the Conservation of Tropical Rainforests and Asian Elephants

The origin of the biota of Hainan Island, China, remains a fundamental scientific problem. Comparative studies on the biota, geological tectonics, and paleomagnetism proposed that during the Eocene, Hainan Island connected Vietnam and Guangxi, and then moved to the southeast to reach its present location. This review mainly discusses its biota origin from molecular phylogeny and palaeobotanical research. The formation and evolution of the biological groups of Hainan Island were identified via research on their genomes, phylogeny, and molecular biogeography. This research showed that the genera and species that appeared and diverged early in their evolution(i.e., before the Miocene) can be explained by the land connection between Hainan Island, Vietnam, and Guangxi during the Eocene-Oligocene. According to Southeast Asian tectonic theory, in the Middle Miocene(at about 15 million years ago), Hainan Island had moved to its present position. The population and genetic divergence of species with late divergence times(after 15 Ma) can be reasonably explained by the close proximity(or land connection) between Hainan Island and the Leizhou Peninsula, enabling genetic communication between Hainan Island and the Chinese mainland, but have exceptional cases. Conclusions have been obtained through palaeobotanical studies, showing that in the Eocene-Oligocene period, southwest China and Hainan Island had subtropical vegetation and flora. However, the fossil group in southeast China(in Maoming, near present-day Hainan Island) in the Late Eocene indicated a tropical rainforest vegetation and flora. This suggests that in the Paleogene, Hainan Island may have been located near or on the southwest border of Guangxi and northern Vietnam, rather than in its present location. The floristic division of the flora of Hainan Island basically presents a northeast-southwest inclined distribution pattern. This pattern can be explained by the counterclockwise rotation of Hainan Island during i

关键词： Molecular phylogeny Biogeography Paleobotany Origin of flora and fauna Hainan Island of China

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TEMPERATURE PROGRAMMED DESORPTION AND THERMAL DECOMPOSITION OF n-BUTYLAMINE ON ZEOLITE HZSM-5

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Chinese Science Bulletin 1989年第5期34卷 384-389页

作者：朱建华须沁华 Department of Chemistry Nanking University

Ⅰ. NTRODUCTIONIn order to explain the catalytic properties of zeolite HZSM-5, it is necessary to know the nature, number and strength distribution of acid sites of zeolite, and the temperature programmed desorption (... 详细信息

关键词： zeolite HZSM-5 TPD n-butylamine.

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繁昌窑址附近多种瓷土成分分析

光谱学与光谱分析 2018年第11期38卷 3598-3606页

作者：崔名芳朱建华安徽工业大学马克思主义学院安徽马鞍山243000 安徽工业大学冶金减排与资源综合利用教育部重点实验室安徽马鞍山243000

繁昌窑青白瓷胎体配方工艺一直停留在理论推理阶段,尚未有确凿的测试数据和模拟实验加以证实。为深入探究繁昌窑的胎料配方工艺,选取了繁昌窑址附近的多种瓷土样品进行了测试分析,并采用了古代制瓷工艺进行了模拟烧制。主要运用了波长色... 详细信息

繁昌窑青白瓷胎体配方工艺一直停留在理论推理阶段,尚未有确凿的测试数据和模拟实验加以证实。为深入探究繁昌窑的胎料配方工艺,选取了繁昌窑址附近的多种瓷土样品进行了测试分析,并采用了古代制瓷工艺进行了模拟烧制。主要运用了波长色散X射线荧光光谱法(WDXRF)、红外光谱(FTIR)和X射线衍射(XRD)等光谱分析方法对瓷土成分进行测试;借助同步热分析(TG-DSC)对样品烧造温度进行了探索;通过模拟烧制陶瓷样品,对繁昌窑青白瓷的烧制工艺进行了研究,并对烧制的陶瓷样品进行显微结构分析。研究表明,繁昌窑附近的几种瓷土无论是单独制胎还是添加高岭土混合制胎,其烧成温度皆接近古代繁昌窑青白瓷的烧制温度。繁昌窑附近的瓷土是可以作为制作古代青白瓷的原料之一,但由于其中的铝含量较低,不能单独用来制作青白瓷胎体的原料,繁昌窑青白瓷在制作过程中应添加了其他富铝类原料。该研究对探索古代繁昌青白瓷的生产工艺及其蕴含的科学价值,提升繁昌窑在中国陶瓷工艺技术发展史上的地位等具有重要的学术意义,并可为现代陶瓷产业技术改进提供有益启示。

关键词：青白瓷瓷土成分 WDXRF 模拟烧制制瓷工艺

河南漯河古城遗址出土宋代青白瓷化学组成及来源研究

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光谱学与光谱分析 2020年第8期40卷 2634-2639页

作者：崔名芳朱建华安徽工业大学马克思主义学院安徽马鞍山243000 安徽工业大学冶金减排与资源综合利用教育部重点实验室安徽马鞍山243000

该研究中,对发掘于河南漯河古城遗址宋金土层的瓷器样品进行了综合表征。青白瓷显微结构分析表现为典型的南方石英、绢云母质瓷;能量色散型X荧光光谱(EDXRF)分析表现出"高硅低铝"特性,胎体制作过程中采用了单一瓷石为原料的"一元配方工... 详细信息

该研究中,对发掘于河南漯河古城遗址宋金土层的瓷器样品进行了综合表征。青白瓷显微结构分析表现为典型的南方石英、绢云母质瓷;能量色散型X荧光光谱(EDXRF)分析表现出"高硅低铝"特性,胎体制作过程中采用了单一瓷石为原料的"一元配方工艺";结合胎釉外观特征及白度值,可判定其属于典型的南方青白瓷。鉴于瓷胎的成分具有一定的地域特征,借助主成分分析方法(PCA)将该批瓷器样品与南方同时代周边青白瓷瓷胎的主量化学元素进行比较,结果显示其与景德镇湖田窑和安徽繁昌窑样品的数据点分布具有很高的重合度,而与其他窑口样品明显偏离,表明这三个窑口的样品在化学组成上有高度的相似性。进一步将这3个窗口的胎釉常量化学元素进行散点图分析比较,发现该批样品与江西湖田窑青白瓷在化学元素组成上具有更高的共性。综合各种分析,推测该批青白瓷样品应产自宋代景德镇湖田窑,为景德镇供奉开封中上层统治者使用的瓷器,后期通过贸易流通到中原地区。结合古代文献资料,推测出其可能的流通路线。该研究对探明我国古代青白瓷的制瓷工艺、瓷器贸易流通状况及挖掘漯河古城遗址的历史文化价值具有重要意义。

关键词：漯河古城遗址青白瓷能量色散型X射线荧光光谱制瓷工艺古代贸易流通

Aliskiren ameliorates sympathetic nerve sprouting and suppresses the inducibility of ventricular tachyarrhythmia in postinfarcted rat heart

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Chinese Medical Journal 2013年第24期126卷 4707-4714页

作者： JIA Yin-yu BAO Zhi-wei WEI Mei-fang zhu jian-hua GUI Le Department of Cardiology Affiliated Hospital of Nantong University Nantong Jiangsu 226001 China

Background Aliskiren is an oral renin inhibitor, which inhibits the first rate limiting step in the renin angiotensin aldosterone system. In this study, sympathetic nerve sprouting and the inducibility of ventricular fibrillation after aliskiren treatment in myocardial infarction were investigated. Methods Male Sprague Dawley rats after coronary artery ligation were randomly allocated to four groups： angiotensin converting enzyme inhibitor enalapril, angiotensin receptor blocker valsartan, 13 adrenergic receptor blocker carvedilol and rennin inhibitor aliskiren treatment for six weeks. Electrophysiological study, histological examination and Western blotting were performed. Results The plasma norepinephrine level and sympathetic nerve innervation significantly increased in treated infarcted rats compared to untreated rats. Aliskiren treatment reduced the sympathetic nerve innervations after myocardial infarction. There is no significant difference in sympathetic nerve innervations after myocardial infarction among the enalapril, valsartan, carvediloand or aliskiren treated groups. Programmed electrical stimulation study showed that inducible ventricular arrhythmia was reduced, ventricular fibrillation threshold was increased and ventricular effective refractory period was prolonged in enalapril, valsartan, carvedilol and aliskiren treated infarcted rats compared to untreated infarcted rats. Cardiomyocytic apoptosis in infarcted region was significantly decreased in enalapril, valsartan, carvedilol and aliskiren treated infarcted rats. Conclusions Aliskiren ameliorated cardiomyocytic apoptosis, attenuated the sympathetic nerve innervations and reduced the vulnerability of ventricular arrhythmias after myocardial infarction. Enalapril, valsartan and carvedilol have similar effects as aliskiren on cardiomyocytic apoptosis, sympathetic nerve innervations and vulnerability of ventricular arrhythmias after myocardial infarction.

关键词： sympathetic nerve, myocardial infarction, aliskiren ventricular fibrillation

FITC标记的叶酸类衍生物的合成及显像研究

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高等学校化学学报 2011年第7期32卷 1532-1536页

作者：谢江朱建华复旦大学药学院放射药学教研室智能化递药教育部和全军重点实验室(复旦大学)上海201203

以对氨基苯乙酸为起始原料,合成了N-(2-氨基乙基)-2-(4-氨基苯基)乙酰胺.以4-二甲基吡啶(DMAP)和1-乙基-[3-二甲基氨基丙基)碳酰二亚胺盐酸盐(EDCI)作缩合剂,将N-(2-氨基乙基)-2-(4-氨基苯基)乙酰胺偶联到叶酸的α位和γ位羧基上,得到... 详细信息

以对氨基苯乙酸为起始原料,合成了N-(2-氨基乙基)-2-(4-氨基苯基)乙酰胺.以4-二甲基吡啶(DMAP)和1-乙基-[3-二甲基氨基丙基)碳酰二亚胺盐酸盐(EDCI)作缩合剂,将N-(2-氨基乙基)-2-(4-氨基苯基)乙酰胺偶联到叶酸的α位和γ位羧基上,得到叶酸衍生物FA-EA,用异硫氰酸荧光素(FITC)标记FA-EA得到FA-EA-(FITC)2.反应中间体及最终产物采用HPLC,1H NMR和MS表征.通过尾静脉注射FA-EA-(FITC)2,观察其在荷瘤裸鼠主要脏器和肿瘤中的分布及对荷瘤裸鼠进行活体荧光显像.实验结果表明,FA-EA-(FITC)2在肿瘤部位有明显的聚集,在其它主要脏器中几乎看不到分布,说明FA-EA-(FITC)2具有较好的肿瘤靶向性.本研究为进一步研制可用于肿瘤显像的叶酸类显像药物提供了依据.

关键词：叶酸衍生物异硫氰酸荧光素对氨基苯乙酸活体荧光显像

海藻酸钠调控羟基磷灰石纳米棒的低温快速合成

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无机材料学报 2015年第3期30卷 311-317页

作者：马丽朱建华黄磊安徽工业大学冶金减排与资源综合利用教育部重点实验室马鞍山243002

以海藻酸钠为晶体生长调节剂,在水热条件下制备了形貌均匀、高长径比的羟基磷灰石(Hydroxyapatite,HA)单晶纳米棒。通过X射线衍射(XRD)、傅里叶红外光谱(FT-IR)、场发射扫描电镜(FE-SEM)、透射电镜(TEM)以及同步热分析(TG/DSC)等测试方... 详细信息

以海藻酸钠为晶体生长调节剂,在水热条件下制备了形貌均匀、高长径比的羟基磷灰石(Hydroxyapatite,HA)单晶纳米棒。通过X射线衍射(XRD)、傅里叶红外光谱(FT-IR)、场发射扫描电镜(FE-SEM)、透射电镜(TEM)以及同步热分析(TG/DSC)等测试方法对合成产物进行了表征,探索了反应温度和时间对产物的结晶度、组成以及形貌的影响,并提出了HA纳米棒的合理生长机理。研究表明,80℃水热条件,反应24 h,对于均匀、低有机吸附量的HA单晶纳米棒合成较有利。对纳米棒的不同生长阶段的微结构分析表明:晶体生长经历了成核、表面调控、继续生长和取向搭接四个阶段。

关键词：羟基磷灰石海藻酸钠纳米棒水热法

Reversal of multidrug resistance in renal cell carcinoma by short hairpin RNA targeting MDR1 gene

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Chinese Medical Journal 2012年第15期125卷 2741-2745页

作者： HAO Yi-xin HE Zheng-wen zhu jian-hua SHEN Qian SUN Jun-zhong DU Nan XIAO Wen-hua Department of Oncology First Affiliated Hospital of the People'sLiberation Army General Hospital Beijing 100048 China Department of Laboratory Diagnosis Claanghai Hospital SecondMilitary Medical University Shanghai 200433 China

Background Over-expression of P-glycoprotein （P-gp）, encoded by the MDR1 gene, confers multidrug resistance （MDR） in renal cell carcinoma （RCC） and is a major reason for unsuccessful chemotherapy. This study aimed to determine the effct of RNA interference （RNAi） on the reversal of MDR in human RCC. Methods We designed and selected one short hairpin RNA （shRNA） targeting MDR1 gene, which is stably expressed from integrated plasmid and transfected by lentivirus fluid in human RCC A498 cell. Results The MDRl-targeted RNAi resulted in decreased MDR1 gene mRNA level （P 〈0.001）, almost abolished P-gp expression and reversed MDR to different chemotherapy drugs in the RCC A498 cell line. Conclusion MDR could be reversed by RNAi in human RCC A498 cell line, which may be used for clinical application

关键词： multidrug resistance, P-glycoprotein short hairpin RNA renal cell carcinoma