查询词典 logic element

In this paper, description logic is used as the formal foundation of OWL DL, the corresponding relation between OWL DL and description logic is analyzed, every element of OWL DL is interpreted with the semantics of description logic.

针对上述问题，Tim Berners- L ee提出了语义 Web[1 ，2 ] ，它是现有Web的扩展，使得 Web不仅是一个展示信息的平台，而且可以由机器理解并做推理。

This paper is based on N-type MOS-HBT-NDR circuit to design a new type of logic gate circuits, The use of a monostable-bistable transition logic element logic gates to realize the principle of operation,,and NMOS devices to control the input stage circuit NDR circuit switching action, And the overall modulation circuits I-V characteristic curve.

中文摘要此篇论文是以N型MOS-HBT-NDR电路来设计新型逻辑闸电路，利用单稳态-双稳态传输逻辑闸(monostable-bistable transition logic element，MOBILE)电路的操作原理来实现，并以 NMOS元件来控制输入级电路中NDR电路的开关动作，进而调变整体电路的I-V特性曲线。

It comprises a chassis, a bell cap, a begrime element and disperse oar. Wherein, said bell cap is mounted above the begrime element via the support element; the begrime element is mounted on the chassis which comprises a inner screen component, a outer screen component, a cover board and a chassis to form the annular space structure; stuffing or protective agent can be filled into annular space according to the demand; the inner cylinder formed by inner screen component is in the hollow cylinder structure; the part of chassis relative to the inner cylinder of inner screen component is on the open structure under which the disperse oar is mounted via the connection element.

包括底盘、泡帽、积垢部件和分散桨，泡帽通过支撑件固定在积垢部件上方，积垢部件固定在底盘上，其结构是内筛组件、外筛组件、盖板和底盘构成的环隙结构，环隙内根据需要使用填料或保护剂，内筛组件构成的内筒是空筒结构，底盘与内筛组件内筒对应部分为开口结构，开口结构下方是通过连接件固定的分散桨。

The energy-orthogonal character of Wilson element,Q_1 element,rotated Q_2 element,Bergan 9-parameter triangular element[6],5- parameter[23] and 8-parameter rectangular element[20] is analysed in this paper.

全文提供：购买充值卡，就可下载本篇论文全文中文摘要：本文分析了Wilson元，Q_1元，旋转Q_1元，Bergan 9参三角形元[6]，5节点元[23]和8参数矩形元[20]的能量正交性。

The coordinate transformation and numerical integration was executed on the discretized tetrahedral elements based on which the 3-D MT vector-finite element method was implemented. A whole computation framework for 3-D vector-finite element method with unstructured mesh was given. Based on this some typical models were tested which has demonstrated that our algorithm could distinctively avoid problems caused by the fake solution and both the accuracy and efficiency were enhanced which made our algorithm has a bright future for further application.3. According to theory of Sobolev vector space and the discretization of Helmholtz space, the error estimate which was suitable for 3-D MT vector-finite element modeling was deduced by which the procedure of adaptive technique was guaranteed.4. Based on the fully unstructured tetrahedralization and optical strategy, the 3-D magnetotelluric h-adaptive vector-finite element method was presented through combining the error estimate. With this work, the accuracy and creditableness for 3-D MT complicatedly modeling was guaranteed.5. The 3-D magnetotelluric h-adaptive vector-finite element algorithm with unstructured mesh was implemented.

针对非结构化的四面体单元，采用坐标变换和数值积分方法，实现了MT三维矢量有限单元分析，建立起基于非结构化网格的三维MT矢量有限元计算流程，并对典型模型和国际标准电磁模型进行了数值模拟，结果对比和分析表明，基于非结构化网格的三维MT矢量有限元不仅消除了节点型有限元的伪解，而且具有很高的计算精度和速度，有广阔的应用前景。3、根据Sobolev函数的向量空间和Hemlholtz空间的分解，推导出基于残差的三维大地电磁矢量有限元后验误差估计公式，为三维大地电磁自适应矢量有限元数值模拟的实现奠定了基础。4、在完全非结构化四面体单元剖分及优化基础上，结合三维大地电磁矢量有限元后验误差估计公式，提出了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算策略，保证了对复杂大地电磁模型数值计算的精度和可靠性。5、实现了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算流程，对典型模型和国际标准电磁模型进行了数值模拟。

Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

Based on the profound analysis of cable element and derivation of finite element method, measure of cable element affected by self-weight is put forward after the discussion of the affecting factors of self-weight. Taking full advantage of the UPFs development technology of Ansys, the user-element is developed and the procedure of implementation and technology of development is discussed seriously. And it is helpful to the redevelopment of other similar element.

基于对索单元的深入分析和有限元理论推导，并在对自重的影响因素进行了详细探讨后，提出了考虑自重影响的索单元开发的思路；充分利用基于Ansys的UPFs二次开发技术，开发用户索单元，并深入探讨了实现过程及开发技术，对类似的其它单元的开发有一定的参考价值。

Steps includes: first revise the comprehensive efficiency index of element awaiting assignment, then find out t he most allocation element of comprehensive efficiency index after revising, while appoint the assignment element appearance is shooting; as to the element awaiting assignment, which has sparking conflict with the forenamed element, appoint its appearance is fireless.

基于循环排序法的弹炮混编防空兵群火力分配优化，先对所有待分配元的综合效率指标进行修正，再找出修正后综合效率指标最大的分配元，指定该分配元状态为射击，并指定与其有转火矛盾的待分配元状态为不射击。

Steps includes: first revise the comprehensive efficiency index of element awaiting assignment, then find out the most allocation element of comprehensive efficiency index after revising, while appoint the assignment element appearance is shooting; as to the element awaiting assignment, which has sparking conflict with the forenamed element, appoint its appearance is fireless.

基于循环排序法的弹炮混编防空兵群火力分配优化，先对所有待分配元的综合效率指标进行修正，再找出修正后综合效率指标最大的分配元，指定该分配元状态为射击，并指定与其有转火矛盾的待分配元状态为不射击。

Finite element discretization was carried out on the mathematical model to get a fully coupled finite element equation with the parameters of element nodal displacement and element nodal pore pressure as unknown variables. Finally, the transient nonlinear finite element equation in incremental form for reservoir fluid-solid coupling is obtained by means of time discretization in implicit difference scheme.

基于与微分方程等价的加权余量公式，在空间域采用有限元离散，对时间域进行隐式差分格式离散，导出了以单元节点位移和单元节点孔隙压力为未知量的储层流固耦合的非线性有限元增量方程。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。