生理种

Melatonin is a kind of indolyl hormone biosynthesized in the pineal gland ,which has extensive physiological activities.

褪黑激素是色氨酸在松果体内生物合成的一种吲哚类激素，具有广泛的生理活性作用。

In this thesis, we developed a new method to construct 2, 3, 6-trisubstituted piperidines using enantiopure -amino acid derivatives as the starting material and applied them to the synthesis of some piperidine alkaloids which showed interesting physiological activities.

本论文中，我们从非手性原料出发，通过手性胺对、(-不饱和酯的Michael加成来获得光学纯的-氨基酸酯，发展了一种构建2、3、6-三取代哌啶环的方法，并利用这种方法合成了一些具有重要生理活性的生物碱类天然产物。

The results are helpful for the development of plant ESR imaging and may be developed to a new method for measuring plant physiology.

这一研究将对植物整体植株的顺磁成像技术的发展有帮助，同时有可能成为一种植物生理检测的方法。

Asiatic hybrid 'Pollyanna' was used as the experimental material, and the bulbs were dipped into the hot water at 45t for different times of 0, 10, 20, 30, 40 and 50 mm. After planting, the physiological indices and the electrical impedance spectroscopy parameters of young plants under heat stress at 38℃ were studied.

以亚洲百合'多安娜'为试材，研究种球在45℃下，经历不同时问梯度(0、10、20、30、40、50min)温汤处理后，其幼苗抗性生理指标及电阻抗图谱参数对38℃胁迫的反应。

Th e motion performance of two areospace pressure suit were studied. Human mechani cs and its physiological basis was applied in the design of one suit only.

方法对比在两种航空航天压力服设计中，采用或不运用人体力学与其生理基础进行设计的活动效能。

A skin sensation, such as burning, prickling , itching, or tingling, with no apparent physical cause.

异样感觉皮肤上的一种没有任何明显的生理原因的感觉，比如灼烧、针刺痛、痒或刺痛

BACKGROUND: Lower limb motion is complex. Proper human motion parameters detection is important for knee prosthesis control.

摘要背景：下肢运动是一种复杂的运动，采用合适的传感器获取人体运动生理信息，成为智能假肢控制的前提。

Proper human motion parameters detection is important for knee prosthesis control.

摘要背景：下肢运动是一种复杂的运动，采用合适的传感器获取人体运动生理信息，成为智能假肢控制的前提。

Experimental result shows that this method has a great potential in the practical application of prothesis control.

实验表明，基于小波变换的奇异值分解方法是一种稳定、有效的特征提取方法，为非平稳生理信号的分析提供了新的手段。

It provides a new way for prothesis control and pathological diagnosis.

作为一种新的肌电信号特征，复杂性测度也为生理与病理分析提供了新的思路

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。