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Cytoplasmic Haplotype Composition of Pinus Densata and Population Establishment of the Tertiary Diploid Hybrid Pine

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Cytoplasmic Haplotype Composition of Pinus Densata and Popul...

第七届全国系统与进化植物学青年学术研讨会

作者： SONG Bao-Hua, WANG Xiao-Quan, WANG Xiao-Ru, DING Kai-Yu, HONG De-Yuan (1. Laboratory of Systematic and Evolutionary Botany, institute of Botany, chinese {2. of {3., beijing 100093. China 2. National institute for Working Life, S-907 13.Umea, Sweden 3. College of life Science and Chemistry, Yunnan University, Kunming 650091, China)

Sequence and restriction site analyses of paternally inherited chloroplast rbcL gene, together with those of the maternally inherited mitochondrial nad1 fragment from the same set of populations and individuals, were ...

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Does the F10.7 index correctly describe solar EUV flux during the deep solar minimum of 2.07-2.09?

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Does the F10.7 index correctly describe solar EUV flux durin...

中国科学院地质与地球物理研究所第11届（2.11年度）学术年会

作者： Yiding Chen,Libo Liu,and Weixing Wan 1 beijing National Observatory of Space Environment,institute of Geology and Geophysics,{2. {3. of sciences,beijing,China. 2.State Key Laboratory of Space Weather,Center for Space Science and Applied Research,{2. {3. of sciences,beijing,China.

[1]This paper shows that the relationship between solar EUV flux and the F index during the extended solar minimum(Smin) of 2.07-2.09 is different from that in the previous *** difference is also seen in the relationship between fF and *** collected SOHO/SEM EUV observations and the F index,through June 2.10,to investigate solar irradiance in the recent *** find that,owing to F and solar EUV flux decreased from the last Smin to the recent one with different amplitudes(larger in EUV flux),EUV flux is significantly lower in the recent Smin than in the last one for the same ***,F does not describe solar EUV irradiance in the recent Smin as it did in the last *** caused remarkable responses in ionospheric fF,For the same F,fF in the recent Smin is lower than that in the last one;further,it is also lower than that in other previous ***,F is not an ideal indicator of fF during the recent Smin,which implies that F is not an ideal proxy for solar EUV irradiance during this period,although it has been adequate during previous *** irradiance models and ionospheric models will need to take this into account for solar cycle investigations.

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Study and Implementation of Bottleneck Bandwidth Measurement in IPv6 Networks

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Study and Implementation of Bottleneck Bandwidth Measurement...

2.06 10th International Conference on Communication Technology（ICCT 2.06）

作者： LI Xing-feng 1 2.LUO Wan-ming 1 YAN Bao-ping 1 1 Computer Network Information Center chinese academy of {2. 2.Graduate University of chinese academy of {2. beijing 10003. China

In this paper, the end-to-end bottleneck bandwidth measurement in IPv6 networks is studied in depth. Recently, a lot of algorithms are designed from the perspective of network layer, making use of the new characteristics of IPv6 or modifying the protocol of IPv6 itself. Since the new characteristics are not specified in detail, or can not be supported by routers, those algorithms can not be deployed in real IPv6 networks, and only be simulated and analyzed via emulators. This paper presents an end-to-end IPv6 networks bottleneck bandwidth measurement algorithm. The algorithm is designed from the perspective of transport layer, which can not only be independent of new characteristics of IPv6 but also make full use of end-to-end properties of transport layer. Provided with a congestion control policy, a low-pass filter and a self-adapting adjustment mechanism, our algorithm achieves significant improvements on the packet pair algorithm. evaluation shows that our algorithm is accurate, fast, flexible and able to work in uncooperative environments.

关键词： IPv6 Network measurement Bottleneck bandwidth Packet pair Algorithm

Sustainability evaluation of limestone geothermal reservoirs with extended production histories in beijing and Tianjin,China

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Sustainability evaluation of limestone geothermal reservoirs...

中国科学院地质与地球物理研究所第11届（2.11年度）学术年会

作者： Zhongfeng Duan~(a,b),Zhonghe Pang~(a,*),Xinyi Wang~c a Key Laboratory of Engineering Geomechanics,institute of Geology and Geophysics,chinese {2. of {3.,19 Beituchengxilu,beijing 10002.,China b Graduate University of chinese {2. of {3.,beijing 100049,China c institute of resource and Environment,Henan Polytechnic University,Jiaozuo,Henan 454003.China

Sustainable development of geothermal resources is the key to prolong the commercial life of geothermal *** paper uses two well-known geothermal fields in China,with long histories of production,to demonstrate how sustainability can be quantitatively evaluated,and to highlight the essential differences between sustainable and non-sustainable development *** examining the complex nature of sustainability evaluation,fuzzy synthetic evaluation is applied as a tool for the quantitative sustainability rating of geothermal *** evaluation procedures include systemic criteria selection,weighing, individual criterion evaluation and finally final multi-criterion decision analysis *** sustainability of a limestone reservoir in the urban sector of Tianjin is rated rather low because of insufficient levels of water *** the contrary,the carbonate rock reservoirs of the Xiaotangshan geothermal field in suburban beijing have a strong sustainability rating,mainly due to high injection rates.

关键词： Geothermal resources Sustainability evaluation Fuzzy synthetic evaluation China

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用壳聚糖亲和磁性微球纯化血浆凝血酶的研究

生物化学与生物物理进展 2010年第4期37卷 433-440页

作者：李梅基李昭华胡建成董先智兰州大学生命科学学院兰州730000 中国科学院生物物理研究所北京100101

通过化学共沉淀法合成纳米粒子Fe3.4磁核,以壳聚糖为包裹材料包被自制的磁核,采用乳化交联法制备了具有核-壳结构的磁性高分子微球-壳聚糖磁性微球,并偶联肝素配基得到了一种新型亲和磁性微球,应用SEM、FT-IR、XRD等对微球的粒径、形貌... 详细信息

通过化学共沉淀法合成纳米粒子Fe3.4磁核,以壳聚糖为包裹材料包被自制的磁核,采用乳化交联法制备了具有核-壳结构的磁性高分子微球-壳聚糖磁性微球,并偶联肝素配基得到了一种新型亲和磁性微球,应用SEM、FT-IR、XRD等对微球的粒径、形貌、结构和磁响应性进行了表征.考察了该亲和磁性微球对凝血酶的分离纯化性能,并与传统的DEAE离子交换色谱法进行了比较.结果表明,所得亲和磁性微球具有较窄的粒径分布、形状规整,粒径在50nm左右.对凝血酶一步吸附纯化获得了比活为1879.71U/mg的酶,得率85%,纯化倍数11.057,而传统柱层析法得率为72.,纯化倍数仅为5.3..制备了壳聚糖亲和磁性微球,并将磁分离技术应用于凝血酶的分离纯化,得到了较好的效果,这将对于凝血酶的纯化及生产具有一定参考价值.

关键词：亲和磁性微球壳聚糖凝血酶磁分离纯化

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基于线索的视觉空间关系判断

心理学报 2004年第2期36卷 127-132页

作者：周荣刚张侃中国科学院心理研究所北京100101

融合视觉空间关系识别中的类别关系判断和数量 (坐标 )关系判断 ,通过 4个实验探讨了影响视觉空间关系判断的线索性方面的因素。结果表明 :视觉空间关系判断受角度影响不明显 ;单线索条件下刺激越靠近可视线索 ,判断绩效越好 ;多线索条... 详细信息

融合视觉空间关系识别中的类别关系判断和数量 (坐标 )关系判断 ,通过 4个实验探讨了影响视觉空间关系判断的线索性方面的因素。结果表明 :视觉空间关系判断受角度影响不明显 ;单线索条件下刺激越靠近可视线索 ,判断绩效越好 ;多线索条件在不显著延长反应时间的情况下有助于提高视觉空间关系判断的正确率 ;另外不均匀条件 (边界线有一定斜率 )不利于视觉空间关系的判断。

关键词：视觉空间关系判断线索类别空间关系/数量空间关系

Development and validation of HPLC methods for enantioseparation of mirtazapine enantiomers at analytical and semipreparative scale using polysaccharide chiral stationary phases

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Development and validation of HPLC methods for enantiosepara...

3.th International Symposium on Capillary Chromatography、4th GC×GC Symposium、16th National Symposium and Exhibition on Chromatography,i.e. 1st Dalian International Symposium and Exhibition on Chromatography

作者： Zong-de Zhai~(1 2. Yan-Ping Shi~(1 *) 1.Key Laboratory for Natural Medicine of Gansu Province Lanzhou institute of Chemical Physics chinese {2. of {3. Lanzhou 73.000 China 2.Graduate University of chinese {2. of {3. beijing 10003. China

＜正＞Mirtazapine is a recent noradrenergic and specific serotonergic antidepressant（NaSSA）drug,and used to treat moderately and severely depressed hospitalized and *** HPLC methods were developed for the analytical and semipreparative resolution of new antidepressant drug mirtazapine *** analytical scale,the separation of the mirtazapine enantiomers was investigated using both cellulose and amylose tris（3.5- dimethylphenylcarbamate）（CDMPC and ADMPC）chiral stationary phases under normal-phases and polar organic *** good baseline enantioseparation was achieved in all ***,the elution order of mirtazapine enantiomic pairs was found reversed by changing the stationary phase from the amylose-based ADMPC-CSPs to its cellulose-based counterpart,*** validation of the analytical methods including linearity,limit of detection,limit of guantitation,recovery and precision,together with the semipreparative resolution of mirtazapine racemate were carried out using cellulose tris （3.5-dimethyiphenylcarbamate）chiral stationary phases and methanol as mobile phase without any basic additives under polar organic *** analytical scale,the elution times of both enantiomers were less than 6 min at room temperature and 1.0 ml/min,with the separation factor（α）1.99 and the resolution facotor（Rs）3.56. Then,the analytical methods were scaled up to semipreparative loading to obtain small amount of both mirtazapine *** semipreparative scale,about 16 mg/h enantiomers could be isolated and elution times of both enantiomers were less than 10 min at 2.0 ml/*** increase the throughput,the technique of boxcar injections was *** enantiomer（（-）-（R）-mirtazapine）was isolated with purity of ＞99.9% *** ＞98.0% yield and another（（+）-（S）-mirtazapine）was isolated with purity of ＞97.0% *** ＞99.0% *** addition,optical rotation and circular dichroism spectroscopy of both mirtazapine enantiomers isolated were also investi

关键词： Enantioseparation polysaccharide carbamate phase semipreparative HPLC optical rotation circular dichroism mirtazapine

红石泉铀矿床黑云母与晶质铀矿同步富集作用探讨

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岩石矿物学杂志 1989年第3期8卷 242-251页

作者：张诚金景福地矿部西安地矿所成都地质学院

红石泉铀矿床是以岩浆气成热液成矿作用占主导地位的复成因型铀矿床。研究结果表明,黑云母的结晶时间明显晚于伟晶状白岗岩中的长石、石英等主要造岩矿物,这是由白岗质岩浆本身的物质成分和物理化学条件所决定的。岩体边缘的黑云母与... 详细信息

红石泉铀矿床是以岩浆气成热液成矿作用占主导地位的复成因型铀矿床。研究结果表明,黑云母的结晶时间明显晚于伟晶状白岗岩中的长石、石英等主要造岩矿物,这是由白岗质岩浆本身的物质成分和物理化学条件所决定的。岩体边缘的黑云母与晶质铀矿同步富集作用是以元素地球化学和矿物热力学作用为主导的地质作用。黑云母与晶质铀矿结晶时间相近,具有一定的成因联系,并且,其组份具有明显的亲缘性是二者密切共生的原因。

关键词：铀矿床黑云母晶质铀矿同步富集

华南与燕山期花岗岩有关的稀土、稀有、有色金属矿床成矿系列

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矿床地质 1983年第2期 15-24页

作者：陈毓川中国地质科学院矿床地质研究所

本文所述及的地区在地质构造上属黄汲清先生所划分的华南加里东褶皱带的范围。该区在下古生代时期为冒地槽,志留纪时发生加里东运动,褶皱隆起,结束了地槽阶段。加里东运动之后,此区仍不断经受构造运动,成为比较典型的构造活化区。主要... 详细信息

本文所述及的地区在地质构造上属黄汲清先生所划分的华南加里东褶皱带的范围。该区在下古生代时期为冒地槽,志留纪时发生加里东运动,褶皱隆起,结束了地槽阶段。加里东运动之后,此区仍不断经受构造运动,成为比较典型的构造活化区。主要表现为:在海西时期一些地带强烈断陷,堆积了巨厚的沉积物,如湘南、河池—南丹等地区;印支—燕山时

关键词：矿床成矿系列燕山期花岗岩年龄有色金属矿床黑云母花岗岩岩体中低温热液型加里东运动加里东旋回地壳运动褶皱基底稀土华南