开孔

kāi kǒng
  • Opening;tapping;open pore;portiforium;trompil
开孔开孔
开孔[kāi kǒng]
  1. 利用开孔明胶固定化啤酒酵母生产ATP的研究

    ATP Production by Beer Yeast Cells Immobilized in Open Pore Gelatin Matrix

  2. 开孔试样水力劈裂包括应力累积和瞬间破坏阶段,模拟结果显示水力劈裂破坏是一个瞬间的过程,因而通过现有手段很难捕捉。

    Thirdly , the hydraulic fracturing process of open pore sample contains stages of stress accumulation and instant failure .

  3. 由于该车没有B柱,门大开孔确保方便也进入了后排座位。

    Since the car has no B-pillars , the large door cutouts ensure convenient entry also to the rear seats .

  4. D型、E型挡墙基本保留了B型挡墙的形状,采用了C型挡墙的开孔方式。

    The baffle D and E type retain the shape of B type , and adopt the fashion of the hole of C type .

  5. 以石油中间相沥青和AR沥青为原料均能制备出具有分布均匀开孔结构,且微观各向异性的炭泡沫。

    The carbon foams with homogeneous open pores and microscopic domains were obtained from AR pitch and petroleum mesophase pitch .

  6. 开孔Voronoi泡沫支柱形状变化对力学性能的影响

    Influence of cell strut shape on the mechanical properties of Voronoi open-cell foams

  7. 结果表明:使用圆形开孔、增加PCB板尺寸都能有效增加壳体屏蔽效能。

    The results show that using the circular slot and increasing PCB board size can effectively increase the shielding effectiveness .

  8. 各向异性Kelvin开孔泡沫模型的弹性性能

    Elastic Properties of Anisotropic Kelvin Model for Open-cell Foams

  9. 为消除非线性吸收的影响,将实验所得有孔Z扫描曲线除以开孔Z扫描曲线进行了处理。

    For eliminating the influence of nonlinear absorption , the Z-scan curve with an aperture is treated with the Z-scan curve without the aperture .

  10. 塑料模壳适用于混凝土密肋楼盖的模板,对IC厂房无尘车间开孔密肋楼盖可拆式模壳技术进行系统阐述,并探讨施工要点及其控制方法。

    Authors expound plastic formwork technology for open waffle slab of clean room in IC workshop systematically , and discuss the key problems in construction and controlling method .

  11. 采用在弓形折流板上开孔的方法后,CFD计算结果显示其传热效率提高了5.4%,壳侧压降减小了7.3%。

    After drilling some holes in the baffle , the result from the simulation show the pressure drop in the shell is reduced 7.3 % , the heat transfer coefficient is lifted 5.4 % .

  12. 五种开孔率下F-1浮阀塔板两相流接触状态初步研究

    A primary study of the two-phase contact regime on F-1 valve tray at five fractional areas of valve holes

  13. 同时开孔Z扫描曲线在焦点出现透过率的最小值,表明钴卟啉和铁卟啉都具有非线性吸收特性。

    Meanwhile , the minimum value of normalized transmittance of z-scan curves without diaphragm are found at the focus , and indicate that Co (ⅱ) - porphyrin and Fe (ⅲ) - porphyrin all have nonlinear absorption properties .

  14. 由于开孔问题的边界形状较为复杂,使用圆柱壳的Morley方程进行求解较为困难。

    Because of the complicated boundary shapes in this type of problems , it is difficult to solve the well known Morley 's equation .

  15. 此法制备的多孔HA具有均匀的开孔结构,孔隙相互贯通,孔径分布范围200-400μm,气孔率高达70-80%,作为组织工程支架材料具有很好的应用前景。

    The porous samples prepared have an open , uniform and interconnected porous structure with a pore size of 200-400 μ m and high porosity of 70-80 % which have a great future used as bone tissue engineering scaffolds .

  16. 屋盖响应分析结果表明,当开孔结构的Helmholtz频率、弹性屋盖的固有频率以及来流中所包含的涡脱落频率,三者接近时,屋盖将发生较大的共振。

    Studies on roof response of sudden opening indicate that resonance vibration will be caused if Helmholtz frequency , roof natural frequency and eddy wake current frequency are the same .

  17. 结果表明,和常规V型火焰稳定器规律相反,开孔沙丘驻涡稳定器比无孔的总压损失系数增大28%。

    The experiments showed that the total pressure loss of the barchane dune vortex flame holder is 28 % greater with holes than without holes , which is quite different from that of a conventional V gutter flame holder with holes ( or slot ) .

  18. 本文从标准椭圆封头在内压P作用下的受力分析出发,对GB150-1998《钢制压力容器》中关于椭圆封头开孔补强的有关条款的合理性进行了探讨,并提出了作者的建议。

    Based on the internal force analysis of the ellipse heads to internal pressure , some rationality of GB150 & 1998 《 The Stell Pressure Vessel 》 for the reinforcement of openings were discussed in the paper .

  19. 测试遮光罩开孔尺寸大小对背反射有较大的影响,背反射对DSSC的短路电流密度的增加率的影响随着测试遮光罩开孔尺寸的增加而增加。

    The size of test hole have greater impact on back-reflection , the influence of back-reflection on the short-circuit current density of the DSSC increase as the size of the test hole increase .

  20. 用渗流法向开孔泡沫铝-硅合金和泡沫纯铝中充填硅橡胶获得含硅橡胶的泡沫材料,在材料试验机和SHPB上对含硅橡胶的复合材料进行动态与准静态压缩实验。

    The aluminium foam containing silicone rubber was fabricated by infiltrating silicone rubber into the open-cell aluminum foam . The dynamic compressive experiments and quasi-static experiments were conducted on material test system and SHPB , respectively .

  21. 本文利用线粘弹性力学中的Boltzmann蠕变律,把开孔弹性薄板大挠度问题的一般数学理论推广到开孔粘弹性薄板。

    In this paper , the general mathematical theory of perforated elastic thin plates with large deflections - has been generalized to the nonlinear analysis for perforated viscoelastic thin plates by means of the Boltzmann 's creep law in linear viscoelasticity .

  22. 提出了变开孔率通气盒的型式和设计计算方法,它以增加3~4mm水柱气流阻力为代价,可使粮层气流分布达到均匀一致。

    A new type of air duct with changed perforation rate plate is designed , which can eliminate the unevenness of air flow at the expense of 3 - 4 mm water column increase in air resistance .

  23. 但是当开孔率接近0.8且D/T很小时(不大于40),依JB标准补强设计后的安全裕度反而较按HG规范计算结果要小。

    In most cases , it was found that the JB criterion is safer than HG specification , but adverse result was obtained when r / R is close to 0.8 and D / T is too small ( less than 40 ) .

  24. 对具有不同开孔度的机械加工表面多孔管,分别以水和乙醇作为沸腾介质,在0.1MPa下进行了池沸腾换热的实验研究,并对其强化机理进行了分析。

    The experimental study on nucleate pool boiling heat transfer for three mechanically fabricated porous surface tubes carried out at 0.1 MPa were presented . Water and alcohol were used in the experiments as working medium .

  25. 该组合料制得的泡沫性能为:泡沫密度15kg/m3,开孔率大于98%,流动性大于1.3cm/g,压缩强度大于0.1MPa。

    The density of foam is 15 kg / m3 , the open-cell ratio exceeds 98 % , and the fluidity of foam is over 1.3 cm / g , the compressive of foam is surpassed 0.1 MPa .

  26. 在原设计方案的基础上,研究了ZJXZH桥桥面系纵、横梁交接处横梁腹板开孔与否、纵梁高度、横梁腹板厚度等构造细节对局部受力状态的影响。

    Based on the original program , the effect of structure details on local stress was studied . Structure details mainly include beams web openings or not , the height of the stringer and the thickness of beam web .

  27. 双孔径定位开孔波纹塔板性能的研究

    Study on the characteristics of double hole diameter perforated ripple tray

  28. 混凝土(RC/PC)开孔梁抗裂性能与裂缝宽度验算

    Checking Computation of Cracking in RC / PC Beams with Opening

  29. 流体管道不停输带压开孔封堵新技术

    New Technology of Holing and Sealing on Non-Stop Pipeline with Pressure

  30. 规则波作用下开孔沉箱波浪力计算方法的实验研究

    Experimental study of calculating for wave forces acting on perforated caisson