查询词典 space curve
- 与 space curve 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This dissertation put forward a method of eliminating noise and reconstituting broken wires signal and inquired the space-frequency range of the signal ripple resulted from tensile stress on the MFL signal curve.
提出了去除干扰重组断丝信号的方法,分析了漏磁曲线上应力波纹的空间频率分量。
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0001 EU patent verification. Patented technology curve flooring pure physical methods, a fundamental solution to the solid wood floor when the drawbacks of tidal arch camber deformation, has changed the traditional style wooden flooring shortcomings, with an elegant new shape, beautiful clean lines, natural features of environmental protection and to maintain the wood's natural color, is now home, office space, sports facilities, hotels, commercial buildings ideal for flooring.
曲线地板专利技术采用纯物理方法,从根本上解决了实木地板遇潮起拱变形的弊端,改变了传统地板造型呆板的缺点,具有造型新颖雅致,线条优美清新,天然环保等特点,并保持了木材的天然本色,是现在居家、办公场所、体育场馆、宾馆、商厦的理想地板。
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According to research on space between wheel and Cart rut traverse curve of single roadway, the width of strip slab was fixed. When there was horizontal loading on slab, contact state between strip slab and base course was studied, and finite element model was established. Comparing maximum principle stress among different load position on slab, it was found that the critical loading position of cement concrete strips pavement was the middle of longitudinal joint.
对车辆轮距和单车道轮迹横向分布曲线进行分析,确定轮迹板板宽;在有水平荷载作用时,对轮迹板与基层的层间接触状态进行分析,建立有限元计算模型,对比荷载作用在轮迹板不同位置时的最大主应力,最终确定水泥混凝土轮迹路面板的临界荷位为纵缝边缘中部。
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The staircase handrail elbow's contour curve shape decides the staircase handrail elbow's space structure shape.
楼梯扶手弯头的空间轮廓曲线形状决定楼梯扶手弯头的空间结构形状。
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By the mechanics analysis of pumping rod, the calculation model of the mechanics analysis of pumping rod and neutrality point of oil tube have been established. The function of pumping rod bend space length and account method have been derived and analysis example have been completed. The simulation of wellbore trajectory and the deformation curve of sucker rod and oil tube is also given.
论文对机械磨损和腐蚀对偏磨的影响进行了分析,通过对抽油杆和油管的力学分析,建立了下冲程抽油杆、管柱下部受力分析与中性点计算模型;给出了抽油杆变形的影响因素,建立了油井井身轨迹、抽油杆和油管在油井中的变形曲线模拟软件。
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We established the local theories of the curves which are in the semi-Euclidean 4-space, especially ,we considered some special ones of the timelike curve.
建立了R_2~4空间中曲线的局部理论,特别地,我们考虑了类时曲线中的一些特殊曲线。
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The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.
讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法,给出了导频图案,通过仿真实验表明,该算法与理想的信道状态信息曲线非常接近,信噪比差距约在2dB左右,并且在快衰落条件下具有较好的稳定性,其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点,论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统,模拟了整个系统的信号流程,进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能,并根据各种不同的条件:例如高斯噪声、多径衰落、有无保护间隔等,对系统的误码特性进行了评估,为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导,提出了以256点IFFT/FFT为核心和以512点IFFT/FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案,它们在参数选取和性能指标上有所差异,均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置,针对本设计系统的应用环境和系统硬件的性能速率,提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡,结合模拟前端搭建数字中频平台,设计了基带处理的DSP软件模块并进行系统调试,基本实现了一套完整的OFDM调制解调方案。
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In order to solve the shape problem of profiling processing space complex surface, general mathematical model of a wooden staircase handrail elbow end section curve has been set up, the VC and Pro/E for the staircase handrail elbow joint simulation have been used to do simulation.
为了解决依据靠模加工空间复杂曲面成型困难的问题,建立木制楼梯扶手弯头端截面曲线的通用数学模型,利用VC和Pro/E对楼梯扶手弯头进行仿真验证。
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The space-filling curve and the method of fixed row layout are used to reduce the searching spaces. The methods of two-stage layout and fixed row layout are used to solve the problems of irregular shape of departments. It is assumed that department area to be variable within some extent for implementing the exchange of department locations with different area among different floor.
提出用&定行法&和&空格填充线法&缩减搜索空间,用两阶段法(优化位置-调整面积形状)和&定行布置法&解决部门面积形状不规则的问题;对于多层厂房优化布置,提出按固定楼层布置顺序、改变部门布置顺序的方法缩减搜索空间;假设部门面积可在一定范围偏差,实现楼层间不同面积部门对调。
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The space-filling curve and the method of fixed row layout are used to reduce the searching spaces. The methods of two-stage layout and fixed row layout are used to solve the problems of irregular shape of departments.
提出用&定行法&和&空格填充线法&缩减搜索空间,用两阶段法(优化位置-调整面积形状)和&定行布置法&解决部门面积形状不规则的问题:对于多层厂房优化布置,提出按固定楼层布置顺序、改变部门布置顺序的方法缩减搜索空间;假设部门面积可在一定范围偏差,实现楼层间不同面积部门对调。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。