| 1. | Analysis of al2o3 - si2o short fiber structure and length diameter ratio 短纤维结构与长径比分析 |
| 2. | Spiral fiber structure 螺旋形纤维结构 |
| 3. | 3 , the floor is the plant crude fiber structure , its nature hardnessover 100 higher than the wood , which is not easy to distort , the service life is not less than 20 years 地板为植物粗纤维结构,它的自然硬度比木材高一百多倍,不易变形,使用寿命不小于20年 |
| 4. | The fiber tensile strength is affected by concentration , temperature and minus stretch during coagulation , while the fiber structure and performance are obviously in fluenced by stretch temperature , medium and ratio 纤维的拉伸强度在凝固成形过程中受到凝固浴浓度、温度和负拉伸的影响,同时在纤维的拉伸中拉伸的倍数、温度和介质等也影响著纤维的结构和性能。 |
| 5. | A new kind of fiber structure with random typed light splitting end is put forward , which is called fi typed fiber bundle and can achieve the intensity compensation . the comparison between the two compensation approaches is finished by experiments 提出了一种带随机型分光端的“ ”型光纤束分光补偿结构,并与分光镜分光补偿的强度补偿效果进行了实验比较。 |
| 6. | According to each tested data of material and single mode propagation requirement of signal in gain fiber , the core fiber and cladding are designed respectively , and a reasonable double cladding amplifiers fiber structure is showed in this paper 根据材料的各种性能测数据及信号光在增益介质内单模传输的要求,对铒镱共掺磷酸盐增益玻璃光纤的纤芯和包层进行了设计,提出双包层结构光纤设计方案。 |
| 7. | The results indicate that ( a ) before heat treatment , with the increasing of substrate temperatures , content of lower valency ( tij + ) decreases , the stoichiometric proportion of o / ti in all samples is about 2 ; the films have amorphous incompact columnar fiber structure , and with the increasing of substrate temperature , the size of columnar fiber increases ; the films have good hyalescence in visible range and great absorbability at the wavelength of 350nm ; optical constants of the films are calculated from the transmittance spectrums in visible range by mathematical analysis of the orders of interference , the results show that the refractive ind 研究结果表明, ( a )热处理前,随着基片温度的增加,薄膜中的低价氧化钛含量逐渐减少,化学计量比趋于o ti = 2 ;薄膜具有非晶态不致密的柱状纤维结构,柱状纤维的尺寸随基片温度的升高而增加;薄膜在可见光范围内透明,在波长为35onzn时严重吸收,利用干涉级次法分析了薄膜的光学常数,结果表明,薄膜的折射率随基片温度的升高而增加,根据计算结果得到了tioz薄膜在不同基片温度下的折射率色散曲线。 |
| 8. | Fiber optic gyroscope ( fog ) is an advanced instrument to measure the angle velocity of rotation body . it realizes the measurement of optical sagnac effect using solid all - fiber structure . it overcomes mechanical - electrical gyro and ring laser gyro ' s reduction of dynamic performance and life - span caused by the structure or the requirement of high rotation rate mass 光纤陀螺是一种先进的感测载体自转角速度的测量仪,它利用固态的全光纤结构实现光学sagnac效应的量测,克服了机电陀螺及环形激光陀螺在构造上或因需要一定的高速度旋转质量,导致动态性能及寿命的降低,或因谐振要求过于苛刻,使工艺复杂性及成本过高等一系列缺点,从而成为当今最具有竞争性的新型陀螺。 |
| 9. | According to the experiment of influences of fiber structures and the width of edge channel on flow filling , it was found that even a small gap ( l or 2mm ) between the preform and the mold edge could also disrupt the flow pattern , which evidently changed the local permeability of preform . the filling process was simulated using the permeability for different edge width predicted by a . hammami or poiseuille model , which shown good agreement with the experiment results 实验研究了纤维铺层结构及流道缝隙的宽度对充模流动的影响,发现在纤维预成型体和模具壁间存在的较小的缝隙也会对边缘的流动产生干扰,进而影响增强材料主体的渗透;对于不同的缝隙宽度,分别根据a . hammami模型和poiseuille模型预测边缘等效渗透率,并进行充模过程数值模拟,与实验结果吻合较好。 |
| 10. | Fiber optic gyroscope ( fog ) is an advanced instrument to measure the angle velocity of rotation body . it realizes the measurement of optical sagnac effect using solid all - fiber structure . it overcomes mechanical - electrical gyro ' s reduction of dynamic performance and life - span caused by the structure or the requirement of high rotation rate mass , and the laser gyro ' s fabrication technology complication and high cost caused by the rigid requirement of optical circuit resonation 光纤陀螺是一种先进的测量载体绝对角速度的仪表,它利用固态的全光纤结构和sagnac效应来实现测量,克服了机电陀螺在构造上需要一定的高速度旋转质量,导致动态性能及寿命的降低,或者环形激光陀螺因谐振要求过于苛刻,使工艺复杂性及成本过高等一系列缺点,从而成为当今最具有竞争性的新型陀螺。 |