In this paper, when assuming a Gaussian near field distribution on the cross section of single-mode fiber, it has been derived theoretically that the far field is also a Gaussian distribution.
本文在假定单模光纤横端面上的近场为高斯分布的前提下，从理论上导出了其远场分布也是高斯分布。
Based on the experiment, the influences of tool normal rake, chip pulling Angle and chip pulling force on the shape and metallurgical structure of the fiber cross section are studied.
通过试验研究了刀具法向前角、拉屑力和拉屑角等对纤维横截面形状和金相组织的影响。
The CO2 laser incident on the fiber result in an asymmetric refractive-index distribution within the cross-section of the LPFG.
分析了单侧CO2激光脉冲曝光导致长周期光纤光栅横截面折射率分布的不均匀性。
The cross section aspect ratio of fiber and the distribution of matrix surrounding are taken into consideration in the model.
该模型考虑了纤维截面的纵横比及基质在纤维周围的分布，对所有纵横比的情况都适用。
The cross section morphology and skin-core structure of PAN fiber in wet-spinning are analyzed by the means of electron probe microanalyser (EPMA) and scanning electron microscope (SEM).
结果表明凝固浴温度会影响初生纤维的横截面形貌与芯部结构。
The moisture management of fabrics containing different cross-section fiber are also compared.
用分类方法比较不同截面异形纤维的吸湿排汗效果。
The cross section morphology and skin-core structure of PAN fiber in wet-spinning are analyzed by the means of electron probe microanalyser (EPMA) and scanning electron microscope (SEM).
利用电子探针、扫描电镜研究了聚丙烯腈在湿法纺丝工艺中的横截面形貌与皮芯结构。
The effects of volume fraction, cross section shape of fibers and the relative thermal conductivity of fiber and matrix on thermal conductivity of composites are analyzed in this thesis.
本文通过计算结果比较，分析了复合材料体分比、纤维截面形状、纤维与基体的相对导热系数对复合材料整体导热性能的影响。
The cross section of carbon nano-fiber was cut directly and the microstructure of the thin cross section studied by HREM.
从纳米碳纤维中直接切取横切面薄膜，用高分辨电镜研究纤维的微观结构。
Yan Hejing such analysis by scanning electron microscopy cross-section of bamboo fiber filled with holes, indicating that it has excellent moisture permeability.
阎贺静等通过扫描电镜分析发现竹浆纤维横截面布满了孔洞。说明它具有优良的吸湿透气性。
The influence of the structure change of the fiber cross section on the transmission spectrum is simulated, and derived qualitatively.
数值分析了光纤截面结构变化对于光栅传输谱的影响，并给出这种影响的定性解释。
The influences of formation condition and draw ratio in melt spinning on the hollowness of Circular cross section hollow polyester fiber are studied.
本文就熔融纺丝成形条件及后拉伸倍数对圆中空聚酯纤维中空度的影响进行了探讨。
The influential factors on cross section shape of PAN fiber were studied during dry-jet-wet spinning.
对干湿法纺丝中PAN纤维的截面形状影响因素进行了研究。
Results it was found that nerve conduction velocity, regenerated myelinated nerve fiber cross section area and number of nerve fiber were superior to those of the contrast.
结果实验组神经传导速度、再生的有髓神经纤维横截面积、数目均优于对照组。
The results showed that the extrusion speed had effects on the irregularity of cross section, surface morphology, profile degree, sonic orientation and compactness of PAN fiber.
结果表明：喷丝速度对PAN纤维截面的规整性、表面形貌、异形度、声速取向和致密性等均会产生影响。
The fiber of flat cross section can overcome some disadvantages of the fiber of circular cross section, and provide the excellent performance and usage to the products.
纤维截面扁平化可以克服圆形截面纤维的某些缺点，赋予产品优良的性能和用途。
Experimental results of 16 reinforced steel fiber high strength concrete members with rectangular cross section under pure torsion are reported.
对16根矩形截面配筋钢纤维高强混凝土纯扭构件进行了试验研究。
Morphological structure of viscose fiber and bamboo fiber is similar to the cross section but no holes.
粘胶纤维形态结构与竹浆纤维相似。但横截面没有孔洞。
An optical fiber process tomography (OFPT) technique for measuring the concentration distribution at a cross section of crude oil and mobile oil has been developed.
本文提出了一种基于光纤过程层析成像技术(OFPT)检测原油与机油截面浓度分布的新方法。
It is found that the temperatures of coagulation baths would greatly influence the cross section and skin-core texture of PAN fiber.
结果表明凝固浴温度会影响初生纤维的横截面形貌与芯部结构。
The relationship between the temperature dependence of Erbium-doped Fiber Amplifier(EDFA) gain and emission and absorption cross-section of Erbium fiber is analyzed theoretically.
从理论上分析了掺铒光纤放大器（EDFA）增益的温度特性与铒光纤发射截面和吸收截面的关系，并通过实验研究了其增益随温度的变化关系。
The experimental results of the short fiber concrete members and fibre prestressed concrete poles with ring cross section are presented.
试验结果及工程实践表明，配纤维预应力混凝土电杆具有良好的抗裂性。
The maximum output power of an optical fiber laser using conventional single core fiber is only several kilowatts due to the nonlinear effect in fiber and the limited cross -section of fiber core.
由于受到纤芯面积、非线性效应等因素的限制，单芯光纤激光器的输出功率极限值为千瓦级。
The main technique parameters and application of large cross-section fiber bundles are introduced.
针对工程实际情况介绍了大截面矩形顶管掘进的施工工艺。
An optical fiber probe is used to study the cross-section of oil-gas-water three-phase slug flow in vertical tubes.
利用光纤探针试验研究垂直上升管内气、水、油三相弹状流截面相份额的规律。
A method for producing fiber-reinforced plastic screw-like fastening element including a thread portion and a head having a cross section which is larger than that of the thread portion.
一法生产纤维增强塑料螺钉拧等元素，其中包括一个线程部分和头部有一个截面，比线程的部分大。
The effect of stretch on the cross-section shape of polyacrylonitrile (PAIN) fiber was studied during the process of wet spinning and dry wet spinning.
研究了湿法和于湿法纺制异形聚丙烯腈(PAN)纤维过程中拉伸对纤维截面形状的影响。
The effect of stretch on the cross-section shape of polyacrylonitrile (PAIN) fiber was studied during the process of wet spinning and dry wet spinning.
研究了湿法和于湿法纺制异形聚丙烯腈(PAN)纤维过程中拉伸对纤维截面形状的影响。
应用推荐