电动旋转式纸卷专用吊具

介绍一种电动旋转式纸卷专用吊具的结构形式及特点，该产品结构紧凑、自重轻，吊具能实现电动旋转，工作效率较高，可广泛用于造纸和其它轻工行业。     

传统加氯工艺的优化控制

加氯消毒是制水厂最基本且最重要的水处理单元,文章对某水厂现有加氯工艺进行研究探讨,并对该加氯工艺进行优化控制,以确保水质卫生学指标安全,降低氯消毒副产物(如THMs)的生成量。     

GE气化炉煤气化反应的简化计算

依据GE水煤浆气化技术特点,建立了GE气化炉煤气化反应的简化计算模型,按所建立的模型进行了气化反应物料平衡和热量平衡的计算,从系统反应进程和最终煤气组分两方面验证了该模型的可靠性。通过本文建立的模型,可以获得GE气化炉在不同运行条件下煤气化炉出口煤气成分等信息,以为系统进行性能分析、工程设计提供参考。     

Transverse electric field–induced deformation of armchair single-walled carbon nanotube

The deformation of armchair single-walled carbon nanotube under transverse electric field has been investigated using density functional theory. The results show that the circular cross-sections of the nanotubes are deformed to elliptic ones, in which the tube diameter along the field direction is increased, whereas the diameter perpendicular to the field direction is reduced. The electronic structures of the deformed nanotubes were also studied. The ratio of the major diameter to the minor diameter of the elliptic cross-section was used to estimate the degree of the deformation. It is found that this ratio depends on the field strength and the tube diameter. However, the field direction has little role in the deformation.     

黄酒中非糖固形物的研究

非糖固形物是黄酒国家标准中的控制指标,也是黄酒生产企业普遍关注的一个问题。文中通过对不同生产工艺酒样糖类物质指标的理化测定及HPLC糖谱分析得到,糊精是非糖固形物中的一个重要组成部分。采用不同工艺生产的黄酒,其中糊精的含量不同,这就影响到黄酒中非糖固形物含量具有明显差异。     

Chaotic bubbles and phase locking for a shaker system in the vicinity of three coexisting critical points

In this paper, the dynamical model of the shaker system, Poincaré maps, Jacobian matrix and power spectrum are established. Different phase-locking phenomena and chaotic bubbles are investigated in the vicinity of three coexisting critical points including Hopf–Hopf bifurcation point, 1:3 resonance point and 1:4 resonance point. In two strong resonance cases, phase-locking dynamics and associated bifurcations are easily to occur. Coexisting attractors have also been introduced to provide mechanisms for chaotic bubbles with connections between pieces. The occurrence of phase locking on doubling torus to multi-period leads to interruption of torus-doubling bifurcation. Isolated chaotic bubbles are birth via period-doubling bifurcation of such a multi-period. Phase-locking phenomena on T² torus are also observed in such a neighborhood of critical points. The number of periods on torus by phase locking can be identified by power spectrum methods. The system parameters may be optimized by studying of phase-locking dynamics of this system.     

IBM阵列存储系统逻辑漂移问题的解决方法

文章介绍了IBM FastT700阵列存储系统结构。对该系统在大庆物探研究所应用中存在的逻辑阵列磁盘漂移问题进行了分析研究，给出了该问题的解决办法。对高性能运算应用领域起到一定的参考作用。     

电动潜油双螺杆泵转子设计中的难点探讨

针对电动潜油双螺杆泵转子在开发设计过程中所遇到的技术难点,如双螺杆泵转子的多级串联增压结构、压缩流体对螺杆的轴向及径向作用力分析、螺杆转子的表面硬化处理工艺和要求,以及螺杆转子的型线及间隙等问题做了分析和探讨。认为选择合适的转子型线和间隙,减少输送过程中的回流现象,对螺杆转子和壳体采用合理的表面处理工艺是转子开发设计中的技术关键。     

乙炔发生控制系统改造

对乙炔发生控制系统进行了改造,将控制室和巡检室设置在乙炔发生装置附近。介绍了改造的具体实施步骤和注意事项。