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燃煤锅炉空气分级燃烧降低NO_x排放的数值模拟

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燃料化学学报 2004年第5期32卷 537-541页

作者：李芳芹魏敦崧马京程蒋诚任建兴章德龙上海电力学院动力系上海200090 同济大学热能工程所上海200092 浙江台州发电厂浙江台州318016

为了降低燃煤电站锅炉的NOx排放量,在阐述空气分级配风方法降低NOx生成机理的基础上,应用CFD计算软件FLUENT6.0,对一台3.0MW电站锅炉采用空气分级配风方式,对其炉内燃烧过程进行了冷态、热态的数值模拟。分析比较了NOx排放的测试数据与... 详细信息

为了降低燃煤电站锅炉的NOx排放量,在阐述空气分级配风方法降低NOx生成机理的基础上,应用CFD计算软件FLUENT6.0,对一台3.0MW电站锅炉采用空气分级配风方式,对其炉内燃烧过程进行了冷态、热态的数值模拟。分析比较了NOx排放的测试数据与模拟数据。结果表明,旋流燃烧器对冲布置的锅炉炉内空气呈对称分布,炉内温度沿炉膛高度先升高,然后又略有降低。炉内燃烧区温度最高,O2.积分数最低,NOx密度最高,随着炉膛高度的增加,温度和NOx密度逐渐降低。对现有锅炉在不进行结构改造和不增加设备投资情况下,通过对某些燃烧器功能的适当调整,运用空气分级技术达到了降低NOx的目的。

关键词：燃煤电厂锅炉空气分级燃烧氮氧化物排放量数值模拟

N-Acetyltransferase 2.gene polymorphism in a group of senile dementia patients in shanghai suburb

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Acta Pharmacologica Sinica 2004年第9期 10-15页

作者： Wei-chao GUO, Guo-fang LIN, Yong-lin ZHA, Ke-jian LOU, Qing-wen MA, Jian-hua SHENinstitute of plant {2. and Ecology, {3. institutes for Life Sciences, chinese academy of Sciences, {3. 2.002. District Mental Health Center, Qingpu, {3. 2.1700, china

AIM: To investigate the possible association of hereditary polymorphism of N-acetyltransferase 2.(NAT2. gene with the susceptibility towards senile dementia in farmer population of shanghai suburb. METHODS: NAT2.gene genotyping was performed at 7 major polymorphic loci (G191A, C2.2., T3.1C, C481T, G590A, A803., and G857A) with a polymerase chain reaction-based restriction fragment length polymorphism based procedure in 2.groups of farmer subjects in shanghai suburb. A group of 51 diagnosed dementia patients [comprising 2. sporadic Alzheimer disease (AD) patients and 2. sporadic vascular dementia (VD) patients] and a group of 112.healthy individuals were in the same area. RESULTS: The homogenous rapid genotypes (R/R, including*4/*4, *13./*13. and *4/*13. was found over-present in both groups of patients, compared with healthy individuals, for all farmer dementia patients, 52.9 % vs 3..0 %, P=0.016, OR (95 % CI): 2.2.(1.16-4.48); for AD group only, 51.7 % vs 3..0 %, P=0.063. OR (95 % CI): 2.18 (0.95-4.97);

关键词： N-acetyltransferases 2 genotype Alzheimer disease polymorphism (genetics)

Genetic relationship between parasitized and non-parasitized Haloxylon ammodendron in the Alxa Desert

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Journal of Systematics and Evolution 2009年第3期47卷 255-262页

作者： 1,2.3.u-Mei WANG 1Dong-Ye YANG 4Yong-Zhen TIAN 5Peng-Fei TU 2.i-Shi SUN 1Xiao-Bo LI 1(School of Pharmacy, shanghai Jiao Tong University, shanghai 2.02.0, china) 2.College of Traditional {3. Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, china) 3.School of Medicine, Xi’an Jiaotong University, Xi’an 710061, china) 4(Forest and Desert Control Research institute of Alxa League, Alxa League 7503.6, china) 5(Modern Research Center of Traditional {3. Medicine, School of Pharmaceutical Sciences, Peking University, Beijing 100083. china) (School of Pharmacy Shanghai Jiao Tong University Shanghai 200240 China) (College of Traditional chinese Materia Medica Shenyang Pharmaceutical University Shenyang 110016 China) (School of Medicine Xi’an Jiaotong University Xi’an 710061 China) (Forest and Desert Control Research institute of Alxa League Alxa League 750306 China) (Modern Research Center of Traditional chinese Medicine School of Pharmaceutical Sciences Peking University Beijing 100083 China)

Haloxylon ammodendron (C. A. Mey.) Bunge is a host for the holoparasitic plant Cistanche deserticola Y. C. Ma, the original source of medicinal material known as Herba Cistanchis. The inter-simple sequence repeat marker was used to assess the genetic variations and relationships among six accessions of H. ammodendron with a total of 12. individuals collected from three localities in the Alxa Desert, Inner Mongolia, china. At each locality, individuals both parasitized (PP) by C. deserticola and non-parasitized (NP) were sampled. The results showed that Nei’s gene diversity and Shannon’s index of PP accessions were higher, but were not significantly different, from those of NP accessions. An unweighted pair-group method arithmetic average dendrogram showed two clusters, one that included all PP accessions, and the other the NP accessions. Genetic differentiation therefore existed between PP and NP accessions, which might be attributed to low gene flow between the NP and PP groups (Nm<1). However, the relationship between genetic distance and geographic distance within each group, although not statistically significant in this study, might be associated with high gene flow in both the NP and PP groups.

关键词： genetic relationship Haloxylon ammodendron ISSR marker parasitism.

Duplication and expression analysis of multicopy miRNA gene family members in Arabidopsis and rice

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Cell Research 2006年第5期16卷 507-518页

作者： Danhua Jiang~(1,2. Changsong Yin~1 Aiping Yu~(1,3. Xiaofan Zhou~1 Wanqi Liang~(1,4) Zheng Yuan~1 Yun Xu~1 Qingbo Yu~1 Tieqiao Wen~2.Dabing Zhang~(1,4) ~1SJTU-SIBS-PSU Joint Center for Life Sciences,School of Life Science and Biotechnology,shanghai Jiao Tong University 800 Dongchuan Road,shanghai 2.02.0, china ~2.chool of Life Science,shanghai University,99 Shangda Road,shanghai 2.0444,china ~3.ollege of Life and Environment Sciences,shanghai Normal University,100 Guilin Road, shanghai 2.02.0},china ~4Key Laboratory of Agricultural Genetics and Breeding,Agro-biotech Research Center,shanghai academy of Agricultural Sciences,2.01 Beidi Road,shanghai 2.1106,china SJTU-SIBS-PSU Joint Center for Life Sciences School of Life Science and Biotechnology Shanghai Jiao Tong University Shanghai China School of Life Science Shanghai University Shanghai China College of Life and Environment Sciences Shanghai Normal University Shanghai China Key Laboratory of Agricultural Genetics and Breeding Agro-biotech Research Center Shanghai Academy of Agricultural Sciences Shanghai China

To understand the expansion of multicopy microRNA (miRNA) families in plants,we localized the reported miRNAgenes from Arabidopsis and rice to their chromosomes,respectively,and observed that 3.% of 117 miRNA genes fromArabidopsis and 3.% of 173.miRNA genes from rice were segmental duplications in the *** order to characterizewhether the expression diversification has occurred among plant multicopy miRNA family members,we designed PCRprimers targeting 48 predicted miRNA precursors from 10 families in Arabidopsis and *** from RT-PCR datasuggest that the transcribed precursors of members within the same miRNA family were present at different *** addition,although miR160 and miR162.sequences were conserved in Arabidopsis and rice,we found that theexpression patterns of these genes differed between the two *** data suggested that expression diversifica-tion has occurred in multicopy miRNA families,increasing our understanding of the expression regulation of miRNAsin plants.

关键词： gene duplication microRNA multicopy

Thermostability of photosynthesis in two new chlorophyll b-less rice mutants

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Science china(Life Sciences) 2005年第2期48卷 139-147页

作者： LIN Zhifang1,PENG Changlian1,Xu Xinlan1,LIN Guizhu 1 & ZHANG Jingliu2.1.South china institute of Botany,{2. {3. of Sciences,Guangdong Key Laboratory of Digital Botanical Garden,Guangzhou 510650,china 2.National Key Laboratory of plant Molecular Genetics,institute of plant physiology & Ecology,shanghai institutes of Biological Sci- ences,{2. {3. of Sciences,shanghai 2.003.,china South china institute of Botany Chinese Academy of Sciences Guangdong Key Laboratory of Digital Botanical Garden Guangzhou 510650 China National Key Laboratory of plant Molecular Genetics Institute of Plant Physiology & Ecology Shanghai Institutes of Biological Sciences Chinese Academy of Sciences Shanghai 200032 China

Leaves of the two new chlorophyll b-less rice mutants VG2.-1, VG3.-5 and the wild type rice cv. Zhonghua 11 were subjected to temperatures 2., 3., 40, 44 and 48℃ in the dark for 3. min or gradually elevated temperature from 3.℃ to 80℃ at 0.5℃/min. The thermostability of photosynthetic apparatus was estimated by the changes in chlorophyll fluorescence parameters, photosynthetic rate and pigment content, chloroplast ultrastructure and tissue location of H2.2.accumulation. There were different patterns of Fo-temperature curves between the Chl b-less mutants and the wild type plant, and the temperature of Fo rising threshold was shifted 3. lower in the Chl b-less mutants (48℃) than in the wild type (51℃). At temperature up to about 45℃, chloroplasts were swollen and thylakoid grana became misty accompanied with the complete loss of photosynthetic oxygen evolution in the two Chl b-less mutants, but chloroplast ultrastruc- ture in the wild type showed no obvious alteration. After 55℃ exposure, the disordered thylakoid and significant H2.2.accumulation in leaves were found in the two Chl b-less mutants, whereas in the wild type plant, less H2.2.was accumulated and the swollen thylakoid still maintained a cer- tain extent of stacking. A large extent of the changes in qP, NPQ and Fv/Fm was consistent with the Pn decreasing rate in the Chl b-less mutants during high temperature treatment as compared with the wild type. The results indicated that the Chl b-less mutants showed a tendency for higher thermosensitivity, and loss of Chl b in LHC II could lead to less thermostability of PSII structure and function. Heat damage to photosynthetic apparatus might be partially attributed to the in- ternal oxidative stress produced at severely high temperature.

关键词： Oryza sativa L, thermostability, chlorophyll b-less mutant, chloroplast ultrastructure, chlorophyll fluorescence, H2.2.

Proteomic analysis of PM proteins involved in rice defense responses

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Proteomic analysis of PM proteins involved in rice defense r...

FLOWER DEVELOPMENT FROM TOBACCO MESOPHYLL PROTOPLASTS

第二届全国植物蛋白质组学学术研讨会

作者： Fang Chen Zuhua He shanghai institute of {2. {3. and Ecology,shanghai institutes of Biological Sciences,chinese academy of Sciences,shanghai,china

PM is the first cell component to sense environmental *** establishment of a cellular model for bacterial blight (Xanthomonas oryzae ***, Xoo) infection and method improvement of PM protein preparation,we successfully...

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Science in china,Ser.B 1987年第5期30卷 481-486页

作者：李文安 shanghai institute of {2. {3. Academia Sinica

Mesophyll protoplasts of two cultivars of Nicotiana rustica L. were cultured in Nagata-Takebe me-dium. The callus formed was inoculated onto a modified MS media (MSBI, MSBN) to induce organo-genesis. Greenish outgrowths, which developed from the callus of only one cultivar, were transferredagain to basic medium without plant growth regulators (MS_ο). These greenish spots developed further intoflower buds under various light conditions. Especially leafless flower buds formed directly from a partof greenish outgrowths on callus. They bloomed and set seeds within the test tubes.

关键词： FLOWER DEVELOPMENT FROM TOBACCO MESOPHYLL PROTOPLASTS

新世纪微生物学者的一项重要任务——未培养微生物的分离培养

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生物工程学报 2004年第5期20卷 641-645页

作者：焦瑞身中国科学院上海生命科学研究院植物生理生态研究所上海200032

扼要介绍近年来有关分离培养未培养的微生物 (Unculturablemicroorganisms)、扩大生态环境微生物多样性的认识等方面取得的重要进展。首先 ,是采用非常规的 ,甚至认为有毒性的电子传递物质 ,获得了多种新生理型(physiotypes)的纯种微生... 详细信息

扼要介绍近年来有关分离培养未培养的微生物 (Unculturablemicroorganisms)、扩大生态环境微生物多样性的认识等方面取得的重要进展。首先 ,是采用非常规的 ,甚至认为有毒性的电子传递物质 ,获得了多种新生理型(physiotypes)的纯种微生物。另外 ,在多种生态域中分离出非同寻常的微生物 ,扩大了这些生境微生物的多样性的视野 ,如普遍存在于大洋的浮游细菌SAR11类群 ,其微小菌体呈半月形 ,在海水中细菌浓度可达 (10 5～ 10 6 ) mL ,基因组估计为 1 5 4Mb。更值得注意的是从极端高温环境分离的嗜热纳米古细菌属 (Nanoarchaeota) ,其基因组仅有5 0 0kb ,是已知原核生物的最小者。应重视的是在分离这些多样性微生物的过程中所发展的新型培养技术 ,如微滴胶囊化法和扩散小室法都是具有革命性的方法 ,既有通用性 ,又无需昂贵设备。

关键词：微生物学者微生物多样性生态环境生理型嗜热纳米古细菌

The function genomics study

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chinese Rice Research Newsletter 2001年第1期9卷 14-15页

作者： HUANG Hai shanghai plant {2. Inst,the {3. academy of Sciences,shanghai 2.003. LI Nantian CNRRI Hangzhou 3.0006,china shanghai plant {2. Inst the Chinese Academy of Sciences CNRRI

Genomics is a biology term appeared ten years ago, used todescribe the researches of genomic mapping, sequencing,and structure analysis, etc. Genomics, the first journal forpublishing papers on genomics research was born in *** the past decade, the concept of genomics has beenwidely accepted by scientists who are engaging in biologyresearch. Meanwhile, the research scope of genomics hasbeen extended continuously, from simple gene mappingand sequencing to function genomics study. To reflect thechange, genomics is divided into two parts now, thestructure genomics and the function *** genomics retains the primary research con-tent of genomics, such as constructing high density genetic

关键词： gene The function genomics study high