1.Intumescent microcapsule flame retardants were synthesized by encapsulating red phosphorus within the m-phenyleneisophthalamide (PMIA) resin shell through reaction dipping under the condition of SC-CO_2. Their physical properties and fire retardant properties have been investigated by using Scanning Electronic Microscopy (SEM), Themogravimetry-differential Thermal Analysis (TG-DTA), Elemental Analysis, CONE, etc. Synthesizing PMIA using SC-CO_2 has never been reported as yet.
本文采用超临界反应包覆法制备囊芯为红磷、囊壁为间位芳香族聚酰胺的膨胀型微胶囊阻燃剂,并通过SEM、TG-DTA、元素分析、CONE等分析测试手段对微胶囊的物理性能和阻燃性能等进行了系统研究和分析。
2.Abstract: On the base of the analysis of kinematics and dynamics f or i ntroduced some types of cone crushers,this paper constructs the dynamics models with the fin ite element method on the main components of the cone crushers,such as main shaf t, moving cone and offcentering axial bushing.According to the characters of the load ,the paper simplifies and counts the external loads.Then using the software of ANSYS and employing the elements of high accurate three dimension block ,the paper analyzes the strength and rigidity of the finite element method and a ttains valuable results.
文摘:在对引进的某型圆锥破碎机的运动学及动力学分析的基础上，建立了该破碎机主要部件主轴、动锥及偏心轴套的有限元分析模型.根据载荷特点，简化并计算了外载荷.应用ANSYS软件，选用精度较高的三维块单元，对其进行了有限元分析，得出了具有参考价值的计算结果.
3.A computed tomgraphy algorithm was developed that can incorporate larges cone angles in circular cone-beam reconstructions to overcome the shortcomings of widely used algorithms(FDK type algorithms) which only work with small cone angles(
实际工程中广泛采用的圆轨道锥束CT重建算法(FDK类算法)中,只有在小锥角(
4.The paper has discussed the different projection aspects of the ellipse gained by plane-obliquely truncated cone method in three basic projection planes of projection sys- tem:horizontal,vertical and side,and in an arbitrary-auxiliary projection plane in terms of both drawing and algebraic geometry,which gives theoretical evidence for the expansion of cone plane in teaching and actual production as well as for making expansion drawing of a cone plane by computer.
本文从作图和解析几何两种方法的角度,讨论了平面斜截圆锥所得椭圆在投影体系中水平、直立、侧立三个基本投影面和任意辅助投影面中投影的不同情况,从而为教学和实际生产中圆锥表面展开、计算机绘制圆锥表面展开图提供了理论依据。
5.The computing formula of theoretical cone angle of the wormwheel addendum cone and dedendum cone can be derived yet.
推导出蜗轮齿顶圆锥的理论锥角计算公式及齿根圆锥的理论锥角计算公式 .
6.The HP300 circular cone breaker imports the equipment, compares with the domestically produced PYB1750 circular cone breaker, broken granularity even, installment service convenient, the spare parts spare parts are few, may realize the automatic clear cavity, and has the good hard protection function;
HP300型圆锥破碎机系进口设备,与国产PYB1750型圆锥破碎机比较,破碎粒度均匀,安装维修方便,备品备件少,可实现自动清腔,并且具有良好过铁保护功能;
7.In this paper we prove that if the polar cone Λ* of a closed convex cone Λis sharp or is generated by a closed ball not containing θ, then Λ is solid.
本文证明：当锥Λ的极锥是尖锥或由不含θ点的闭球体张成时，Λ是体锥；
8.occidentalis occurred in August by the transition of vegetative apices into seed cone apices in Beijing. Female cone in T. occidentalis consisted of 4～6 pairs of decussate bracts.
在北京 ,北美香柏的雌球果是在八月初由营养芽转变而来 ,雌球果一般有 4～ 6对苞片 ,中间 2～ 3对可育 ,每一苞片腋部着生两枚胚珠。
9.The paper mainly introluces the stretching method for tendon, reasons for retraction of male cone, the influence of male cone retraction on prestress value, and measures adopt in dealing with extra loss of prestress.
介绍预应力筋张拉方法、锚塞回缩产生的原因、锚塞回缩对预应力值的影响程度以及其对预应力值过大损失的处理方法和措施。
10.New Object Tools, including Rounded Rectangle, Box, Ellipsoid, Cylinder, Cone, Torus, Truncated Cone, and Tube.
新增了圆环、立方体、圆柱体等实体模型的建造方法。
