| 1. | Research on duck egg shell thickness grading model 鸭蛋壳厚等级模型研究 |
| 2. | In addition , to these three characteristics , there are also two other shell characters , shell thickness and shell smoothness , which are not easily studied by quantitative analysis 除这三种壳因子外,还有两个难以定量比较分析的贝壳形态特征,即壳厚度或坚硬度和光滑度。 |
| 3. | The simulation results show that the system relationship model can reflect dynamic variation on its shell temperature and predict indirectly the shell thickness at tapping spout 仿真结果表明,所建立的关系模型能够反映结晶器出钢口处坯壳表面温度的动态变化,及间接地预知坯壳厚度目的。 |
| 4. | In addition , there will be some asymmetrical condition for shelling ; if the shell speed is different , there will be crusting phenomenon and then damage precision of shell thickness 另外一些覆膜砂还可能出现结壳厚度不均匀的现象,如果结壳速度不同,将出现覆膜砂加热过程中的“起皮”现象从而破坏了结壳厚度的准确性。 |
| 5. | Influence to geometry nonlinear stability of orthogonal vierendeel dome by changing rise - to - span ratio , shell thickness and section area was studied and some useful conclusions were obtained for practical engineering 分析了正交空腹网壳结构的矢跨比、网壳厚度、腹杆截面对其非线性稳定性的影响,得出若干对工程设计有参考价值的结论。 |
| 6. | The micropcms were prepared by using in - suit polymerization with prepolymer of melamine - formaldehyde ( mf ) and charactized the properties such as shape , diameter distribution , thermal prosperities , strength , shell thickness and penetration property 利用激光粒度分布仪、 sem 、 dsc和tg分别研究了所得微胶囊的粒径分布、表面形态及热性能的影响因素。 |
| 7. | It can measure shell speed and crusting of film laminating by adopting fks - 1 tester of film laminating capacity ; the principle of this instrument is that it makes film laminate on heating plate and turns 90or 180 of heating plate for moving un - shell sand . and then it measures shell thickness and observes cocking condition of surface sand 采用fks - 1型覆膜砂结壳性能测试仪可以观测覆膜砂的结壳速度和起皮状况,其原理是将覆膜砂撒在加热板上,经过某一时间之后,将加热板旋转90或180移去未结壳的松散砂,然后测量结壳厚度,并观察表层砂的翘起情况。 |
| 8. | Dynamic characteristic of orthogonal vierendeel dome was discussed , and the influence on vibration characteristic acted by difference including rise - to - span ratio , shell thickness , section area and constraint condition was studied . vibration shapes - separation - spectra - method and time - history method were adopted to analyze the dynamic response of orthogonal vierendeel dome under common earthquake . by comparing dynamic response in different direction and dimension seismic excitation , the value and distribution of dynamic internal force were obtained 本文研究了正交空腹网壳结构的动力特性,分析了矢跨比、网壳厚度、腹杆截面和支座约束条件对结构自振特性的影响;采用反应谱法和时间历程法对正交空腹网壳的地震响应作了详细的分析,分别研究了结构在不同方向地震激励下和在不同维数地震激励下动力响应的数值大小和分布规律,并比较了两种方法的结果差异,对抗震设计具有参考价值。 |
| 9. | Testing results are analyzed , then the boundary condition ( the heat transfer coefficient of and the water density ) for computer simulation is acquired . through simulation in computer using the all - purpose computer simulation software secondary cooling in slab continuous casting and test results , the influence of the factor such as casting speed , casting temperature , shell thickness and secondary cooling system are analyzed . the secondary cooling system is evaluated , the reasons of crack are analyzed 应用仿真软件和实验数据对宝钢1930铸机进行了仿真计算,分析了拉速、配水制度、过热度对铸坯温度场和坯壳厚度的影响;对宝钢1930铸机的二冷制度进行了评估,分析了产生裂纹的原因;并对二冷制度进行优化,提出了改进建议。 |
| 10. | Synergistic effect exists when the shell thickness of the micrometer iron - nano iron core - shell structure composite particles is about 120nm , at which the permeability greatly increases . the real part and the image part of the permeability at 2 ghz obviously greater by 25 % than the corresponding values of the iron microparticles and iron nanoparticles 微米铁-纳米铁核壳复合粒子在壳层厚度为120nm时,磁导率有极大提高,表现出协同效应;在2ghz处磁导率实部、虚部均高于对应的纳米或微米粒子相应值的25以上。 |