1) Laurencia
凹顶藻属
1.
The marine red algal species of the genus Laurencia (family Rhodomalaceae, order Ceramiales, class Rhodophyceae, and phylum Rhodophyta) comprise about 135 species in the world and more than 20 species distributed in China.
凹顶藻属海藻在分类地位上属于红藻门、红藻纲、仙菜目、松节藻科,主要分布于热带、亚热带和温带海域的低潮线附近及深海部分,约135种,中国有20种以上。
2) Laurencia tristicha
凹顶藻
1.
To extract the ethanolic compounds from Laurencia tristicha and Rhodomela confervoides.
制备三列凹顶藻和松节藻醇提物,采用原子吸收光谱法测定了海藻醇提物中Na、K、Ca、Mg、Fe、Zn、Cu、Mn8种无机元素含量。
2.
To extract the fatty acids compounds from Laurencia tristicha and Rhodomela confervoides, the fatty acid contents of the two kinds of seaweeds were separated and identified by gas chromatography mass spectrometry (GCMS) method.
制备三列凹顶藻和松节藻醇提物,采用气相色谱-质谱联用仪(GC/MS)对这两种海藻提取物脂肪酸进行了分析,各分离出17个和18个峰,鉴定了12种脂肪酸。
3) Laurencia
凹顶藻
1.
Effects of Laurencia extract on antioxidant activities in mice;
凹顶藻提取物的抗氧化作用
2.
Antitumor activities and its immunologic functions of Laurencia terpenoids;
凹顶藻萜类化合物抑瘤活性及其对免疫作用的研究
3.
Effects of Laurencia Extract on Antimicrobial and Antitumor Activities Against Breast Cancer in Rats and Carcinoma Cell Lines;
凹顶藻提取物抑菌及抑瘤作用研究
4) convex vertex
凹顶点
1.
This paper proposes an algorithm to divide an arbitrary polyhedron to tetrahedrons,which is based on our al-gorithm to decide its vertex s attribute of concave or convex,then searches the qualified convex vertex to be divided.
该算法的平均时间复杂度为O(N+M),其中N为多面体的凸顶点数目,M为多面体的凹顶点数目。
5) concave-convex vertex of polygon
凸凹顶点
6) concave head piston cavity piston
凹顶活塞
参考词条
补充资料：黑顶藻属
| 黑顶藻属 Sphacelaria 褐藻门黑顶藻科的一属。藻体丝状，黑褐色，直立，簇生，借助于基部的假根状丝体或盘状固着器附生在潮间带大型海藻上。直立丝体具有分枝，圆柱形，分枝和主枝顶端都具有1个大的圆柱形的黑褐色的顶细胞。藻丝的顶端部位由单列细胞组成，丝体下部由多列细胞组成。每个营养细胞含有几个盘状色素体，无蛋白核。顶端生长。营养繁殖很普遍，由藻体产生不同形状的繁殖枝脱离母体，形成新植物体。无性生殖是产生单倍体的动孢子或二倍体的中性孢子；有性生殖是由多室配子囊中产生的配子进行融合。本属有25种，中国有9种。除了河生黑顶藻生长在淡水外，其余8种均为海产。 |
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