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Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou:Ⅳ.Uptake,Storage and Return of S by Vegeta
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作者 JIANG QIU-YI HE LI-MING YU YI-WU and CHEN GUO-RUI(Zhejiang Forestry College, Ling’an 311300 (China)) 《Pedosphere》 SCIE CAS CSCD 1994年第1期53-58,共6页
StudiesonMaterialCyclinginEvergreenBroad-LeavedForestEcosysteminHangzhou:Ⅳ.Uptake,StorageandReturnofSbyVeget... StudiesonMaterialCyclinginEvergreenBroad-LeavedForestEcosysteminHangzhou:Ⅳ.Uptake,StorageandReturnofSbyVegetationJIANGQIU-YI,... 展开更多
关键词 杭州 常绿阔叶林 森林生态系统 物质循环 植被 s吸收 硫贮存 硫循环
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Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhon:Ⅲ.S Concentration and Its Storage in Veget
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作者 JIANG QIU-YI HE LI-MING and QIAN XIN-BIAO(Zhejiang Forestey College, Lin’an, 311300 (China)) 《Pedosphere》 SCIE CAS CSCD 1994年第1期47-52,共6页
StudiesonMaterialCyclinginEvergreenBroad-LeavedForestEcosysteminHangzhon:Ⅲ.SConcentrationandItsStorageinVege... StudiesonMaterialCyclinginEvergreenBroad-LeavedForestEcosysteminHangzhon:Ⅲ.SConcentrationandItsStorageinVegetationJIANGQIU-YI... 展开更多
关键词 杭州 常绿阔叶林 森林生态系统 物质循环 硫含量 分布 植被
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UPLC-MS/MS测定心悦胶囊中6个皂苷类成分的含量
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作者 赵振霞 王晓蕾 +3 位作者 耿韫 朱靖 于新兰 刘永利 《中国现代中药》 CAS 2024年第3期528-534,共7页
目的:采用超高效液相色谱-质谱法(UPLC-MS/MS)建立心悦胶囊中主要成分人参皂苷Rg_(1)、人参皂苷Re、人参皂苷Rb_(1)、拟人参皂苷F_(11)、人参皂苷Rd和20(S)-人参皂苷F1的含量测定方法。方法:使用Waters ACQUITY BEH C_(18)色谱柱(100 mm... 目的:采用超高效液相色谱-质谱法(UPLC-MS/MS)建立心悦胶囊中主要成分人参皂苷Rg_(1)、人参皂苷Re、人参皂苷Rb_(1)、拟人参皂苷F_(11)、人参皂苷Rd和20(S)-人参皂苷F1的含量测定方法。方法:使用Waters ACQUITY BEH C_(18)色谱柱(100 mm×2.1 mm,1.7μm),以乙腈-水为流动相,梯度洗脱,流速为0.5 mL·min^(–1),柱温为40℃,电喷雾电离源,多反应离子监测扫描方式进行检测。结果:6个成分分别在质量浓度为9.638~963.800、9.839~983.900、9.951~995.100、5.270~1054.000、9.608~960.800、4.905~981.000 ng·mL^(–1)时与峰面积线性关系良好(r>0.998),平均加样回收率(RSD)分别为96.9%(2.2%)、100.1%(1.5%)、97.2%(1.8%)、98.5%(2.3%)、96.6%(2.8%)、100.2%(3.5%)。结论:所建立的方法快速、准确、灵敏度高,可用于心悦胶囊中西洋参茎叶总皂苷的质量控制。 展开更多
关键词 超高效液相色谱-质谱法 心悦胶囊 西洋参茎叶总皂苷 人参皂苷Rg_(1) 人参皂苷Re 人参皂苷Rb_(1) 拟人参皂苷F_(11) 人参皂苷RD 20(s)-人参皂苷F_(1)
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The change of the cationic peroxidase in the leaves at the fertile transformation period in Nongken 58s
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作者 HE Zhichang Dept of Plant Sci,College of Life Sci,Wuhan Univ,Wuhan 430072,China 《Chinese Rice Research Newsletter》 1997年第1期11-12,共2页
Nongken 58s is a type of photoperiod sensitivegenic male sterile rice which gives rice to malesterility when illuminated time is longer than13.75 h/d. The photoperiod sensitive stagesare from the differentiation of pr... Nongken 58s is a type of photoperiod sensitivegenic male sterile rice which gives rice to malesterility when illuminated time is longer than13.75 h/d. The photoperiod sensitive stagesare from the differentiation of primary branchprimordum (Ⅱ) in young ears to fullness ofcontents of the pollen (Ⅶ). The changes ofactivity and isoenzymes in cation peroxidase atphotoperiod sensitive stages and the relation- 展开更多
关键词 The change of the cationic peroxidase in the leaves at the fertile transformation period in Nongken 58s
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Nora's病一例
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作者 杨建水 《内蒙古中医药》 2014年第14期117-117,共1页
Nora’s病又称奇异性骨旁骨软骨瘤性增生(Bizarre parosteal osteochondromatous proliferation,BPOP),是一种罕见的良性骨膜外骨软骨瘤样增生性病变。1983年Nora等首先描述了35例发生于足部的奇异性骨旁骨软骨瘤性增生,因此命名为... Nora’s病又称奇异性骨旁骨软骨瘤性增生(Bizarre parosteal osteochondromatous proliferation,BPOP),是一种罕见的良性骨膜外骨软骨瘤样增生性病变。1983年Nora等首先描述了35例发生于足部的奇异性骨旁骨软骨瘤性增生,因此命名为Nora’s病或Nora’s病损。目前国内报道很少。我科于2013年2月收治一例,现报道如下: 展开更多
关键词 noras
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Nora's Possible Way Out——To See It through a Comparative Study between Nora and Kristine
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作者 贺辉艳 张静婵 《海外英语》 2011年第10X期262-265,共4页
Ibsen's A Doll's House is regarded as a kind of "canon". As the play shares an open ending, many critics seem to try to find a way out for Nora. Nora is supposed as the first woman to pronounce the &... Ibsen's A Doll's House is regarded as a kind of "canon". As the play shares an open ending, many critics seem to try to find a way out for Nora. Nora is supposed as the first woman to pronounce the "Women Declaration of Independence". She has become the most courageous women for fighting an equal place in family. However, this paper focuses mainly on the comparison between Nora and Kristine the relatively less popular character. Kristine plays a role of girlhood friend of Nora as well as the one who solves the debt problem and brings a new problem into Nora's family. She serves a model for Nora. Ibsen writes Nora as she is, but it is Kristine who leads Nora onto the road of finding herself. Through the image of Kristine we can conclude that Nora might have all kinds road to tread before her but each one leads to a home-her true home. 展开更多
关键词 A Doll’s HOUsE IBsEN experience family leavING
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Awakening of Nora—On Ibsen’s A Doll’s House
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作者 肖莉 《海外英语》 2019年第21期219-220,共2页
A doll’s house tells us a story of a woman,who is treated as a doll-child by her father,then a doll-wife by her husband,eventually realizes her subordinate role at home,so she resolutely leaves the apparently perfect... A doll’s house tells us a story of a woman,who is treated as a doll-child by her father,then a doll-wife by her husband,eventually realizes her subordinate role at home,so she resolutely leaves the apparently perfect marriage and tries to seek out her own individuality.It questions the entire fabric of marital relationships,and indicts all the false values of the masculine society. 展开更多
关键词 A doll’s HOUsE nora DRAMA woman’s AWAKENING
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西洋参叶中20(s)-人参皂苷-Rh_1,-Rh_2和人参皂苷Rh_3的分离与鉴定 被引量:30
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作者 丛登立 宋长春 徐景达 《中国药学杂志》 EI CAS CSCD 北大核心 2000年第2期82-84,共3页
目的:从西洋参叶中分离、鉴定20(s)人参皂苷Rh1,Rh2和人参皂苷Rh3,为了深入研究它们的生理活性。方法:以水提取,用多孔树脂吸附,再以体积分数为95%的乙醇洗脱,最后以硅胶柱层析分离。通过理化性质及IR,NMR光谱等方法测定,鉴定其结构。结... 目的:从西洋参叶中分离、鉴定20(s)人参皂苷Rh1,Rh2和人参皂苷Rh3,为了深入研究它们的生理活性。方法:以水提取,用多孔树脂吸附,再以体积分数为95%的乙醇洗脱,最后以硅胶柱层析分离。通过理化性质及IR,NMR光谱等方法测定,鉴定其结构。结果:共分得3个化合物,经鉴定后分别证明为20(s)人参皂苷Rh1,Rh2和人参皂苷Rh3。结论:人参皂苷Rh3为首次从西洋参叶中分离获得。 展开更多
关键词 西洋参叶 人参皂苷 分离 鉴定
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RP-HPLC测定西洋参叶皂苷碱降解物中20(S)-人参皂苷Rh_2的含量 被引量:5
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作者 李绪文 桂明玉 +2 位作者 郑莹 金永日 张寒琦 《中国中药杂志》 CAS CSCD 北大核心 2006年第5期386-388,共3页
目的:对西洋参叶皂苷碱降解物中20(S)-人参皂苷Rh2进行含量测定。方法:采用RP-HPLC,ZORBAX EXTEND C18柱(4.6mm×250mm,5μm),流动相甲醇-水(85:15),流速1.2mL·min^-1,检测波长203nm,柱温25℃。结果:20(S)... 目的:对西洋参叶皂苷碱降解物中20(S)-人参皂苷Rh2进行含量测定。方法:采用RP-HPLC,ZORBAX EXTEND C18柱(4.6mm×250mm,5μm),流动相甲醇-水(85:15),流速1.2mL·min^-1,检测波长203nm,柱温25℃。结果:20(S)-人参皂苷Rh2的进样量在0.5~25μg有良好的线性关系,r=0.9999;平均加样回收率为99.7%,RSD1.0%。结论:该方法测定20(S)-人参皂苷Rh2简便快捷,准确度高,测定结果证实该降解方法20(S),人参皂苷Rh2的转化率高。 展开更多
关键词 西洋参叶皂苷 降解物 20(s)-人参皂苷Rh2 RP-HPLC
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烯效唑对罂粟(Papaver somniferum L.)不同叶位叶SPAD值变化规律研究 被引量:6
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作者 赵锐 郭平毅 +3 位作者 王江源 原向阳 郭秀 王伟 《西南农业学报》 CSCD 北大核心 2009年第2期459-462,共4页
采用随机区组设计,以罂粟(Papaver somniferum L.)为供试材料,进行不同浓度烯效唑处理下主茎不同叶位叶SPAD(Soiland Plant Analyzer Development,土壤作物分析仪器开发)值的测定。分析了罂粟叶片SPAD值与叶绿素含量的关系,在此基础上... 采用随机区组设计,以罂粟(Papaver somniferum L.)为供试材料,进行不同浓度烯效唑处理下主茎不同叶位叶SPAD(Soiland Plant Analyzer Development,土壤作物分析仪器开发)值的测定。分析了罂粟叶片SPAD值与叶绿素含量的关系,在此基础上研究不同浓度烯效唑对罂粟叶片SPAD值的影响,并确定SPAD值在不同叶位间的变化规律。结果表明:罂粟叶片的叶绿素含量与SPAD值呈极显著线性相关。在本试验设置的不同浓度烯效唑处理中,罂粟上部4片叶的SPAD值较高,SPAD值随叶位的下降而下降。因此,在考虑叶片大小的因素后,测定罂粟叶片SPAD值时,以选择倒3叶或倒4叶较为适宜。 展开更多
关键词 罂粟 烯效唑(s-3307) sPAD值 叶位 叶绿素含量
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基于自适应不完全S变换与LOO-KELM算法的复合电能质量扰动识别 被引量:4
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作者 伊慧娟 高云鹏 +2 位作者 朱彦卿 黄瑞 黄纯 《电力自动化设备》 EI CSCD 北大核心 2022年第1期199-205,共7页
针对电能质量复合扰动识别中特征提取效率低、分类器识别能力与学习速度无法同步提高的问题,提出一种基于自适应窗不完全S变换与留一交叉验证优化的核极限学习机(LOO-KELM)算法的复合电能质量扰动识别方法。首先根据选定的主频率点自适... 针对电能质量复合扰动识别中特征提取效率低、分类器识别能力与学习速度无法同步提高的问题,提出一种基于自适应窗不完全S变换与留一交叉验证优化的核极限学习机(LOO-KELM)算法的复合电能质量扰动识别方法。首先根据选定的主频率点自适应调节S变换窗宽系数,提取具有高时频分辨率的59种电能质量(PQ)特征,再通过留一交叉验证寻找最小预测残差平方和,实现核极限学习机的输出权重优化,最后根据提取PQ特征集与优化后的核极限学习机实现复合扰动的识别与分类。仿真和实测结果表明,所提方法对不同噪声下的16类混合电能质量扰动均具有较高的分类精度,相较于现有复合电能质量识别方法,分类精度更高且训练时间更短。 展开更多
关键词 电能质量 复合扰动识别 自适应窗不完全s变换 核极限学习机 留一交叉验证
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Florid reactive periostitis ossificans of the humerus: Case report and differential diagnosis of periosteal lesions of long bones 被引量:4
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作者 Abha Soni Alec Weil +2 位作者 Shi Wei Kenneth A Jaffe Gene P Siegal 《World Journal of Orthopedics》 2015年第7期559-563,共5页
A case of florid reactive periostitis ossificans(RPO) arising in a long bone is presented. This is a rare bone proliferation with a pronounced periosteal reaction. Less than 100 cases have been described in the litera... A case of florid reactive periostitis ossificans(RPO) arising in a long bone is presented. This is a rare bone proliferation with a pronounced periosteal reaction. Less than 100 cases have been described in the literature with far fewer outside the bones of the hand, feet, fingers, and toes. Although the etiology is unknown, a relationship to preceding trauma is suggested. The imaging and histologic features show an overlap with other bone lesions including bizarre parosteal osteochondromatous proliferation, subungual exostosis, and malignant surface tumors of bone and cartilage which include, periosteal and parosteal osteosarcoma. It is important to recognize the clinical presentation and diagnostic features of RPO as a benign entity so that it is not mistaken for a more aggressive neoplasm. We present a case of a right distal humeral lesion that on histopathological review revealed florid RPO. This diagnosis was not suspected on imaging studies, but was made on open biopsy of the mass. The patient remains disease free, years postoperatively. In addition to presenting this unique case report, we review the pertinent literature, and offer a differential diagnosis and treatment strategy for its management. 展开更多
关键词 Bizarre parosteal osteochondromatous proliferation(noras lesion) REACTIVE tumor-like LEsIONs of long bones FLORID REACTIVE PERIOsTITIs ossificans PERIOsTEAL and parosteal osteosarcomas
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喷施S—3307对菊花生长的影响 被引量:1
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作者 刘爱荣 张远兵 +2 位作者 仲正林 张启珠 黄继红 《安徽农业技术师范学院学报》 1997年第4期14-17,共4页
在菊花生长前期喷施一定浓度的S-3307,可使菊花叶面积增大3.6─5.4cm2.叶重提高0.28—0.55g,叶片增厚,叶色变绿,株高降低9.5-18.1cm,同时菊花的其它主要经济性状也变佳,从而使菊花的观赏价值提高。
关键词 菊花 经济性状 生长
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Bizarre Parosteal Osteochondromatous Proliferation-Like Lesion Originating in Soft Tissue: Report of a Case 被引量:1
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作者 Khushboo N. Jhala Shi Wei +1 位作者 Robert R. Lopez-Ben Gene P. Siegal 《Open Journal of Pathology》 2012年第2期38-41,共4页
Many tumors are unique to the organs from which they arise. Over the last 20 years, however, most tumors that were thought to be primary in soft tissues (derived from the primitive mesenchyme) and thought not to have ... Many tumors are unique to the organs from which they arise. Over the last 20 years, however, most tumors that were thought to be primary in soft tissues (derived from the primitive mesenchyme) and thought not to have counterparts in bone, were found to, in fact, rarely arise as unique lesions from bone. Some examples include synovial sarcoma, rhabdomyosarcoma and leiomyosarcoma, to name but three. We now have begun to see the reverse with lesions that were initially thought to be unique to bone arising in soft tissue. While this has been well reported with osteosarcoma and Ewing's sarcoma, it has never been reported with Bizarre Parosteal Osteochondromatous Proliferation (BPOP), also known as Nora's lesion. This study explores the first reported case of a soft tissue lesion, with clinical, radiological and histopathological characteristics of BPOP. 展开更多
关键词 BPOP noras LEsION sOFT TIssUE
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Prediction of Proteins Associated with COVID-19 Based Ligand Designing and Molecular Modeling
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作者 Majid Monajjemi Rahim Esmkhani +1 位作者 Fatemeh Mollaamin Sara Shahriari 《Computer Modeling in Engineering & Sciences》 SCIE EI 2020年第12期907-926,共20页
Current understanding about how the virus that causes COVID-19 spreads is largely based on what is known about similar coronaviruses.Some of the Natural products are suitable drugs against SARS-CoV-2 main protease.For... Current understanding about how the virus that causes COVID-19 spreads is largely based on what is known about similar coronaviruses.Some of the Natural products are suitable drugs against SARS-CoV-2 main protease.For recognizing a strong inhibitor,we have accomplished dock-ing studies on the major virus protease with 4 natural product species as anti COVID-19(SARS-CoV-2),namely“Vidarabine”,“Cytarabine”,“Gem-citabine”and“Matrine”which have been extracted fromGillan’s leaves plants.These are known as Chuchaq,Trshvash,Cote-Couto and Khlvash in Iran.Among these four studied compounds,Cytarabine appears as a suitable com-pound with high effectiveness inhibitors to this protease.Finally by this work we present a method on the Computational Prediction of Protein Structure Associated with COVID-19 Based Ligand Design and Molecular Modeling.By this investigation,auto dock software(iGEM-DOCK)has been used and via this tool,the suitable receptors can be distinguished in whole COVID-19 component structures for forming a complex.“iGEMDOCK”is suitable to define the binding site quickly.With docking simulation and NMR inves-tigation,we have demonstrated these compounds exhibit a suitable binding energy around 9 Kcal/mol with various ligand proteins modes in the bind-ing to COVID-19 viruses.However,these data need further evaluation for repurposing these drugs against COVID-19 viruses,in both vivo&vitro. 展开更多
关键词 COVID-19 receptor binding domain Gillan’s leaves plants angiotensin converting enzyme-2 protease domain
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高二英语单元检测(Units 11-12)(英文)
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作者 曾克辉 《中学英语园地(高二版)》 2006年第2期38-54,共17页
关键词 UNITs 11-12 单项填空 中学英语园地 短文改错 leave sPERM sTRANGE s
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Israel’s consul-general reluctant to leave
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作者 Mo Yi 《Voice of Friendship》 2018年第2期40-40,共1页
'Chengdu has sufficient strength to attract an increasing number of international trend-setters.I have already become a genuine Chengdu trend-setter.'—Amir Lati,Israel consulgeneral in Chengdu Amir Lati,Israe... 'Chengdu has sufficient strength to attract an increasing number of international trend-setters.I have already become a genuine Chengdu trend-setter.'—Amir Lati,Israel consulgeneral in Chengdu Amir Lati,Israel’s consul-general in Chengdu,has worked and lived in the city for three and a half years.From his perspective,Chengdu,which is situated at the 展开更多
关键词 Israel’s consul-general reluctant to leave
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奇异性骨旁骨软骨瘤样增生5例临床病理学分析 被引量:10
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作者 夏燕 吴玲玲 +1 位作者 封扬 吴礼高 《临床与实验病理学杂志》 CAS CSCD 北大核心 2016年第9期1033-1036,共4页
目的 探讨奇异性骨旁骨软骨瘤样增生(bizarre parosteal osteochondromatous proliferation,BPOP)的临床影像学和病理组织学特征、鉴别诊断、治疗及预后。方法 对5例BPOP进行HE染色,并进行相关文献复习。结果 5例BPOP患者发病年龄17~4... 目的 探讨奇异性骨旁骨软骨瘤样增生(bizarre parosteal osteochondromatous proliferation,BPOP)的临床影像学和病理组织学特征、鉴别诊断、治疗及预后。方法 对5例BPOP进行HE染色,并进行相关文献复习。结果 5例BPOP患者发病年龄17~48岁,无性别差异,均感觉肿痛不适就诊,病变位于四肢长、短管状骨。X线示宽基底的边界清晰的高密度肿块,起源骨膜下完整的骨皮质,病变部位与附着骨的骨髓腔亦不相通,其中1例伴附骨的骨皮质轻度破坏。镜下见主要由软骨、骨和纤维组织无规则排列而成,轻度异型的软骨细胞可伴大部分钙化软骨,即多形性骨小梁中的“蓝骨”;骨小梁周围被覆无异型的骨母细胞,骨小梁间有大量的血管、纤维组织增生。结论 BPOP是一种罕见的、良性的骨软骨瘤样病变,术后高复发性,无转移,恶变罕见,需结合影像学与病理组织学特点进行诊断,易误诊,需与骨旁骨肉瘤、软骨肉瘤、骨化性肌炎等鉴别。 展开更多
关键词 骨肿瘤 奇异性骨旁骨软骨瘤样增生 nora 骨软骨瘤
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不同生长季节及生长年限银杏叶总萜内酯含量的相关性研究 被引量:23
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作者 王先荣 周正华 +3 位作者 杜安全 夏重道 王德群 刘守金 《中国药科大学学报》 CAS CSCD 北大核心 2000年第2期88-90,共3页
采用 HPLC法测定银杏叶中白果内酯、银杏内酯 A、B、C的含量 ,并测出不同生长季节及生长年限的含量变化。结果表明 :总萜内酯含量在 8月份最高 ;幼树叶的含量明显高于老树 ,并伴随树龄的增长 。
关键词 银杏叶 总萜内酯 HPLC 生长季节 生长年限
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Nora's病的诊治进展 被引量:5
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作者 王强修 李加美 林晓燕 《中华临床医师杂志(电子版)》 CAS 2012年第16期4802-4803,共2页
Nora′s病,又称奇异性骨旁骨软骨瘤性增生,是一种罕见的良性骨膜外骨软骨瘤样增生性病变.1983年Nora等[1]首先描述了35例发生于足部的奇异性骨旁骨软骨瘤性增生,因此命名为Nora′s病或Nora′s病损.部分患者有创伤史,好发于手、足短管状... Nora′s病,又称奇异性骨旁骨软骨瘤性增生,是一种罕见的良性骨膜外骨软骨瘤样增生性病变.1983年Nora等[1]首先描述了35例发生于足部的奇异性骨旁骨软骨瘤性增生,因此命名为Nora′s病或Nora′s病损.部分患者有创伤史,好发于手、足短管状骨,偶见于长骨骨旁[2-4].目前国内报道不足10例,可能与缺乏对本病的认识有关[2-5].由于本病临床病史缺乏特异性,影像学和病理组织学极易与相同发病部位的其他骨或软骨病变相混淆[5].本病术后易复发,文献报道复发率可达35%~55%,约20%的病例多次复发[1,6].本文对其临床病理特点加以综述,以提高对本病的认识. 展开更多
关键词 软骨化骨 奇异性 骨小梁 病变 骨皮质 异型性 骨软骨瘤 结缔组织肿瘤 noras
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