搜索结果: 1-11 共查到“生物学 R-st”相关记录11条 . 查询时间(0.031 秒)
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Scientists improve understanding of Mount St. Helens eruption recovery(图)
Scientists Mount St. Helens eruption recovery
2020/2/20
Through research in the blast zone of Mount St. Helens, Evergreen State College scientists have discovered that plants are influencing the ecosystem’s recovery.A new paper reporting the results, "Plan...
为研发富含植物乳杆菌ST-Ⅲ新型益生菌发酵乳制品,该试验尝试用植物乳杆菌ST-Ⅲ和嗜热链球菌共发酵,并对植物乳杆菌ST-Ⅲ发酵乳的工艺进行了优化研究。通过单因素试验分析了大豆多肽添加量、葡萄糖酸锰添加量、嗜热链球菌的接种量和发酵温度对发酵乳的pH值和植物乳杆菌ST-Ⅲ活菌数的影响。通过响应面法优化并确定了最佳工艺条件:大豆多肽添加质量分数11 g/kg;葡萄糖酸锰添加质量分数11 mg/kg;嗜热...
A taxonomic study of the genus Coptacra St錶, 1873 (Orthoptera: Acridoidea: Catantopidae) from
Orthoptera Acridoidea Catantopidae Coptacra new species China
2011/12/22
本文对中国切翅蝗属Coptacra Stål, 1873进行了系统的分类研究, 附ߌ...
《The Voyage of the Beagle》Chapter 7 Buenos Ayres and St. Fe
The Voyage of the Beagle 随Beagle号航行考察 查尔斯·达尔文 Charles Darwin
2008/12/23
SEPTEMBER 27th. -- In the evening I set out on an excursion to St. Fe, which is situated nearly three hundred English miles from Buenos Ayres, on the banks of the Parana. The roads in the neighbourhoo...
《The Voyage of the Beagle》Chapter 1 St. Jago(Cape de Verd Islands)
The Voyage of the Beagle 随Beagle号航行考察 查尔斯·达尔文 Charles Darwin
2008/12/23
AFTER having been twice driven back by heavy southwestern gales, Her Majesty's ship Beagle, a ten-gun brig, under the command of Captain Fitz Roy, R. N., sailed from Devonport on the 27th of December,...
心电信号ST段基于径向基函数神经网络的形态识别
神经网络 ST段 心电信号
2008/5/15
本文利用基于自适用模糊系统的径向基函数神经网络对心电信号ST段进行形态识别,取得较好效果。
The Genus Sinantherina Bory de St. Vincent, 1826, a New Record for the Turkish Rotifer Fauna
Rotifera Sinantherina taxonomy trophi
2010/3/25
Rotifera species collected from a pool (Çeltikli village, Bismil, Diyarbakır) 22 km from Bismil to Batman were surveyed taxonomically. Eighteen rotifer species were identified. Two of thes...
摘要对中间偃麦草麦、小麦和小麦-中间偃麦草2Ai-2附加系Z1、Z2、Z6,代换系ZD28等进行RAPD分析,从320个RAPD引物中,鉴定出2Ai-2染色体特异的2个RAPD标记OPO05650和OPM041400.利用这2个特异RAPD引物OPO05和OPM04,PCR扩增普通小麦CS(ABD)及其近缘植物中间偃麦草(E1E2St)、拟鹅冠草(St),长穗偃麦草(E)、簇毛麦(V)、黑麦(R)...
E和St基因组特异RAPD片在部分小麦族植物中的分布
基因组 RAPD标记 克隆 原位杂交 Southern杂交
2008/1/21
摘要两个E基因组(包括Ee和Eb)特异RAPD片段和两个St基因组特异RAPD片段的序列分析表有,4个片段均为新的DNA克隆片段。染色体原位杂交显示OPD-12 444为区域化连续高度重复序列,而OPF-03 1296(Eb特异)、OPB-08 525(St特异)、OPN-01 817(St特异)为弥散性高度重复序列。研究还显示:大部分DNA高度重复序列在亲缘关系较近的小麦族植物基因组间是共享的,...
介绍用于数理统计的ST-1软件
数理统计 ST-1软件
2008/1/18
数理绕计方法是分析统计资料、处理实验数据、从偶然现象中揭示必然规律的科学方法,由于统计处理时数据多、计算繁、容易出错,目前巳广泛采用电子计算机来解决数理统计领域的各类问题。中国科学院遗传研究所技术室最近推出的ST-1 软件就是为提供常用数理统计方法的程序而设计的,这些程序涉及了数据整理,常用分布函数的数值计算,参数的区间估计,统计检验(“检验、,检验、x=检验、r 检验)、方差分析、回归分析等数理...
Testig Growth of Elodea nuttallii (Palnch.) H. St. John with Different Culture Media
Elodea snail nutrient
2010/3/22
The Growth rate of Elodea nuttallii (Planch.) H.St.John was tested in different culture media. Effects of snail was also determined on the growth rate of the plant. E. nuttallii grew well in the canal...