研究了赤潮异弯藻、亚历山大藻和中肋骨条藻抗氧化酶活性对UV-B辐射增强的响应变化。
The change of antioxidant enzyme activity in Skeletonema costatum, Heterosigma akashiwo and Alexandrium tamarense under UV-B radiation enhancement were studied.
研究掺聚醋酸乙烯水泥砂浆的轴拉和轴压应力—应变关系、抗弯性能以及长期粘结抗弯强度。
This paper delivered the relationships of uniaxial tensile and compressive stress with strain and bending properties, and felt-bending strength of cement mortar with polyvinyl acetate (PVAC).
纵弯叠加褶皱地区岩石有限应变特征是所受历次变形的综合结果。
The features of rock finite strain in the superimposed fold area under buckling are comprehensive results of multiphase deformation.
根据平截面假定和应变协调条件计算的受弯承载力与实测值符合较好。
The flexural strength calculated on the basis of the plane section assumption and strain compatibility condition agrees well with the test results.
采用电阻应变测量技术研究了带有初始随圆度的弯管在纯内压作用下的应力分布。
The stress distribution of a curved pipe with an initial elliptic cross section under internal pressure was studied by using electric resistance strain method.
光纤微弯传感器是一种强度调制式光纤传感器,它是利用光纤的微弯损耗效应来测量压力、温度、加速度、应变、流量等环境参量的变化。
It utilized the microbend loss resulting from optical fiber bending to measure the change of environmental parameters, such as pressure, temperature, acceleration, strain and flow.
根据弯梁原理,由光纤布拉格光栅测得的应变结果可反算出大坝沿水平向和竖向的位移分布。
According to the bending beam theory, the distribution of both horizontal and vertical displacements can be calculated from the strains measured by the FBGs.
采用该方法不仅可以分析弯管成形过程瞬时应变状态及其演化过程,而且可以分析弯管成形过程变形特点。
Adopting this method not only can analyze instantaneous strain condition and evolution during tube bending, but also can analyze deforming feature.
通过大量管材弯曲试验,分析了沿弯曲线的切向和管壁厚方向的应力应变状态,给出弯管内、外侧管壁厚变化量和切向应变的近似计算公式。
Based on lots of tube bending experiments, the stress-strain state along the tangential direction of bending line and the direction of the wall thickness is analyzed.
当配筋特征值不大于0.2时,承载能力极限状态下碳纤维片材的拉应变可以接近或超过允许拉应变,因此可以有效地对受弯构件正截面承载力进行加固;
When the ratio not more than 0.2, CFRP tensile strain can reach or exceed the permissible strain at ultimate capacity state, and therefore CFRP can work efficiently.
通过共培养的方法,研究了亚历山大藻和赤潮异弯藻种群竞争关系对UV B辐射增强的响应变化。
The responses of the interspecific competition between Alexandrium tamarense and Heterosigma akashiwo to UV-B radiation enhancement was studied by co-culture method.
利用生物化学的方法,研究了赤潮异弯藻、亚历山大藻和中肋骨条藻抗氧化酶活性对UV-B辐射增强的响应变化。
The Change of antioxidant enzyme activity in Skeletonema costatum, Heterosigma akashiwo and Alexandrium tamarense under UV-B radiation enhancement was studied using biochemical methods.
应变测量基础——介绍应变,应力,印制板弯翘的概念以及应变片等。
Fundamentals of strain Measurement -definition of strain, stress, board flexure and strain gages.
结果表明纤维在排水性沥青混合料中起到了减少析漏,提高抗弯拉应变,降低疲劳应力敏感性等作用。
The result showed that the role of fiber in the PFC mixture was to prevent the drainage, improve the flexural strain and reduce the sensitivity of the fatigue.
文中还提出了应对碳纤维布锚固长度、剥离应力、极限状态下碳纤维布的应变、强剪弱弯等进行验算的建议。
It is advised that the anchorage length of CFS, peeling stress, the strain of CFS under the ultimate load and the shear capacity should also be verified to insure enough ductility of the member.
根据一系列常幅疲劳试验,分析了抗弯加固rc梁中FRP疲劳应变的变化规律和关键影响因素。
Based on a series of fatigue tests, the change laws and the main influence factors of FRP strain of strengthened RC beams under cyclic bending loads were analyzed.
本文从双向弯曲、拉弯、扭弯等组合变形方面详细推导了应变能公式,得出组合应变能为各基本应变能之和。
In this paper, the formula of strain energy is derived in detail form the combined deformation like bidirectional bending, tension-bending and torsion-bending deformation. Result illustrates th...
本文从双向弯曲、拉弯、扭弯等组合变形方面详细推导了应变能公式,得出组合应变能为各基本应变能之和。
In this paper, the formula of strain energy is derived in detail form the combined deformation like bidirectional bending, tension-bending and torsion-bending deformation. Result illustrates th...
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