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central complex
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     The brain structures are similar in the two wasps, and the protocerebrum is composed of several obvious structured neuropils including the mushroom body (MB), central complex (CC), optic lobes (OL), lateral accessory lobe (LAL), and anterior optic tubercle (AOTu).
     两种黄胡蜂的脑部结构相似,由几个明显的功能髓质结构组成,包括前脑、中脑、后脑和咽下神经节。
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     THE CENTRAL FORCE PROBLEM SOLVED BY USING COMPLEX FUNCTIONS
     有心力问题的复数解法
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     Urban Complex
     都市综合体
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     benefit for central;
     以效益为中心 ;
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     Diplomacy Central
     透视欧洲中央银行新掌门人——特莱切特
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     The Composition,Tectonic Framework and Evolution of Qinling Complex, Central China
     秦岭杂岩的组成、构造格局及演化
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  central complex
The Role of the Flabellar and Ellipsoid Bodies of the Central Complex of the Brain of Drosophila Melanogaster in the Control of
      
Mutants with defects in individual parts of the central complex and mushroom bodies have been obtained.
      
Attention is currently focused on two main structures: the central complex and the mushroom bodies.
      
The Ability of Drosophila Mutants with Defects in the Central Complex and Mushroom Bodies to Learn and Form Memories
      
These data show that the central complex appears to play a very important role in controlling song, while the mushroom bodies are not related to this function.
      
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Objective: To study the ultrastructural relationship between distal neurons contacting cere- brospinal fluid (CSF) in the dorsal raphe nucleus (DR) and neurons no-contacting CSF in the brain parenchyma. Methods: An antergrade and retrograde tracing of the cholera toxin subunit B with horseradish peroxidase (CB-HRP) and electron microscope. Results: There were mainly two synaptic types between neurons contacting CSF in DR and neurons no-contacting CSF in the brain parenchyma: A dendro (-)-dendritic (+) synapse...

Objective: To study the ultrastructural relationship between distal neurons contacting cere- brospinal fluid (CSF) in the dorsal raphe nucleus (DR) and neurons no-contacting CSF in the brain parenchyma. Methods: An antergrade and retrograde tracing of the cholera toxin subunit B with horseradish peroxidase (CB-HRP) and electron microscope. Results: There were mainly two synaptic types between neurons contacting CSF in DR and neurons no-contacting CSF in the brain parenchyma: A dendro (-)-dendritic (+) synapse and an axo (-)-dendritic (+) synapse ("-" represents neurons no-contacting CSF and "+" represents neurons contacting CSF). The labelled dendrites by CB-HRP distributed in a cluster, and some of them formed dendritic central complex. The labelled axon terminal by CB-HRP extended into CSF in the cavity of the third ventricle. Both type Gray Ⅰ(exciting ) and Gray Ⅱ(inhibiting) synapses were found and the presynaptic elements were formed by neurons no-contacting CSF and the postsynaptic elements by neu- rons contacting CSF. Conclusion: This paper firstly reported that distal neurons contacting CSF in DR could receive both exciting and inhibiting messengers and transmit them from brain parenchyma to CSF.

目的:研究大鼠中缝背核内远位触液神经元与脑实质结构之间的超微结构联系,以探明这种神经元传递信息的方向。方法:用霍乱毒素亚单位B与辣根过氧化物酶复合物(CB-HRP)顺、逆行追踪与电镜技术相结合。结果:中缝背核的触液神经元(以“+”表示)与脑实质的非触液神经元(以“-”表示)之间主要有两种突触形式:轴(-)-树(+)突触和树(-)-树(+)突触,标记的树突多成簇状分布,有的形成树突中心球样的结构,在第三脑室侧壁尚见有被标记的轴突终末伸入脑脊液中。这些突触既有 GrayⅠ型(兴奋型),也有 Gray Ⅱ型(抑制型),但它们的共同特点是突触前成分均为非触液神经元的结构构成,突触后成分均为触液神经元的结构构成。结论:中缝背核的远位触液神经元既可以接受兴奋性信息,也可以接受抑制性信息,并将这些信息自脑实质向脑脊液方向传递。

The central complex moment is defined,and complex moment based moment invariants are proposed.The translation,rotation and scaling invariance of moment invariants is discussed using the central complex moments.

:定义了中心复数矩 ,提出了基于中心复数矩的不变矩表示 ,进而讨论了离散情况下不变矩的平移、旋转及尺度不变性 ,给出了理论分析结果 ,并用实验进行了验证

This paper is about the study on the strain of Alcaligenes sp.NX-3 which could produce a new type of biopolymer PS-238. PS-238 has the excellent stability towards temperature,pH and salts. It belongs to the family of microbial polysaccharides with a wide range of industrial applications. Studies on the nutritional requirement for optimal polysaccharride production were carried out. The carbon source and nitrogen source were first investigated respectively. Then central complex design method was applied...

This paper is about the study on the strain of Alcaligenes sp.NX-3 which could produce a new type of biopolymer PS-238. PS-238 has the excellent stability towards temperature,pH and salts. It belongs to the family of microbial polysaccharides with a wide range of industrial applications. Studies on the nutritional requirement for optimal polysaccharride production were carried out. The carbon source and nitrogen source were first investigated respectively. Then central complex design method was applied for the optimization of cultural medium. It was shown that carbon source was the most remarkable factor for the production of PS-238. The concentration of K_2HPO_4 was aslo very important. By using the optimized medium, the yield of PS-238 increased from 10.78?g/L to 22.85?g/L

一株产碱杆菌AlcaligenesspNX3可分泌一种新型高分子多糖PS238,该多糖具有耐高温、耐酸碱、耐盐等优良特性。碳源、氮源等培养基组分对该多糖产量有重要的影响。文中采用单因素的实验方法确定了发酵培养基的碳源、氮源分别为蔗糖和蛋白胨,然后采用中心复合设计法对培养基的主要成分进行了分析和优化。结果表明,碳源是极显著的因素,K2HPO4次之。最优发酵培养基配方为,蔗糖浓度49g/L,蛋白胨浓度65g/L,K2HPO42g/L,MgSO403g/L,根据预测的最优发酵水平的营养配比,产量由1078g/L提高至2285g/L。

 
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