查询词典 structure function

Regard analyzing the localization of the financing function of capital market as the starting point, on the basis of analyzing the financing structure theory and resource distribution efficiency, the text has analyzed and announced the misplacing of the financing function of capital market and the corresponding origin cause concretely further.

以分析民营企业资本市场融资功能的定位为起点，在研究融资结构理论及资源配置效率的基础上，进一步具体剖析和揭示了我国民营企业资本市场融资功能的错位及其制度成因。

This invention discloses a duplexer and a multiplexer of the communication system and a method to realize them on a PCB circuit, which applies a 3db bridge and a low pass filter to constitute a hopstreet duplexer without waste band channels, in which, the signals are shunted and combined by the design of the circuit structure and power distribution of the 3-db bridge and phase offset function, the band filter of the low pass filter and the reflection function of a stopband to make up of a costless duplexer in theory to merge the two channels of different frequencies and reduce loss to increase volume and working bandwidth, then a multiplexer is formed by cascading multiple duplexers.

本发明涉及通信设备，公开了一种通信系统双工器和多工器以及双工多工方法，使得双工器和多工器能够在PCB电路上实现，并且体积小、损耗小、成本低、容量大。本发明中，采用三分贝电桥、低通滤波器构成无损耗频带信道合路的双工器，其中通过电路结构的设计并利用三分贝电桥的功率分配和相位偏移功能将各路信号进行分路和组合，利用低通滤波器的频带滤波和阻带反射功能联合三分贝电桥构造一个理论无耗的双工器，使两路不同频率的信道合路，降低的损耗、提高容量和工作带宽。通过多个上述双工器的级联构成多工器。

A new analysis method to compute the launch vehicle s structure transient response during the hold-down and release phase was proposed in this paper,using the field transferring function and group analysis function of the MSC.

将运载器牵制释放垂直发射的过程依次分为静态、牵制、释放三个阶段。

This paper shows a king of the public IC card telephone detector based on the microprocessor plus the peripheral function module, both formed the hardware of the IC card telephone detector. Then design the corresponding software of the structure according to the function module.

提出了一种基于单片机的公用IC卡电话机测试仪，以ATMEL公司的AT89C55为核心，加上外围的功能模块，构成测试仪的硬件部分；再按其功能模块进行相应的软件设计。

Aiming at the general problems of function safety in chemical industry, the author introduces function safety assessment standards IEC61508 and IEC61511 established by IEC (International Electric Committee), describes their background, objectives, system structure, and how to use these standards to quantitatively analyze the safety and automatic mis-stop of Safety Instrumented System in petrochemical industry.

针对石化行业普遍存在的功能安全问题，笔者以国际电工学会专门制定的功能安全评定标准IEC61508及IEC61511为指导，介绍其标准制定的背景、目的、体系结构以及如何利用标准开展石化行业安全联锁系统(Safety Instrumented System， SIS)的安全与误跳车定量分析。

The present paper bases itself upon 'three plane principle', with a special emphasis on the sentence sequence relating to function word. This paper enploys the theorise and metheds of traditional grammar, desciptive grammar,'three plane principle' and contemporary western grammar schools. The analysis carries out the principle of linking form and meaning, static and dynamic state and structure and function.

本文主要立足于三个平面的理论，并吸收传统语法、描写语法以及当代西方语法流派中的有关理论和方法，贯彻形式和意义相结合、静态和动态相结合、结构和功能相结合的原则，对与虚词有关的语序研究中的一些问题进行详细讨论。

The text designed each function mold piece of the software system in detail according to the function structure.

根据功能结构，论文详细设计了软件系统的各个功能模块。

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。

In order to elucidate the regulation mechanism of RU5 region to BFV gene expression, BFV3026 provirus DNA was used to construct the plasmids containing different deletion of R region, which were cotransfected with luc report gene locatied behind the IP promoter to BL12 cells, and luciferase activities was assayed, confirming that U5 region could repress the initiation function of LTR as well as IP. The BFV structure genes with different deletion of R region were cloned closely behind to heterogenous CMV promoter, then transfected to 293T cells, RT activity was performed, testifying the R region was required for BFV pol gene expression, and also the function domain was identified within the 100n.t. sequence at the 5′end.

以牛泡沫病毒(Bovine foamy virus， BFV)中国株BFV3026原病毒DNA为材料，构建R区系列缺失质粒，通过对其转染细胞中RT水平及对缺失质粒与luc报告质粒共转染细胞中萤火虫荧光素酶活性的测定，确立U5区对于BFV3026两类启动子LTR和IP均具有负调控作用；同时将带有不同R区的BFV3026结构基因片段克隆于异源启动子CMV之下，通过对其转染细胞293T中RT酶活性的测定，确立R区对于病毒结构基因pol的表达具有一定的调节作用，并将其功能区域初步界定在R区5′端100bp内。

A number of lines evidence indicate that calcium treatments maintain the structure and function of the cell walls, increase the fruit firmness, decrease the activity of the cell wall degration enzymes and ethylene production, maintain the integrity and stability of the membrane, activate some oxidases, induce phytolexin and regulate cell function as a signal mobecular.

钙的防腐机制在于对果蔬采后腐烂的控制，保持细胞壁的结构与功能，增强果实硬度，降低细胞壁降解酶的活性，抑制呼吸，降低乙烯生成量，保持细胞膜的完整性，激活体内的某些氧化酶，诱导合成植保素，作为信号分子，调节细胞功能。

A backer of an Afghan law that critics say legalizes marital rape has rejected the international outcry as foreign meddling.

饱受批评的一项法律的拥护者说合法化的婚内暴力不会受国际舆论的干涉。

Years ago, a ancient Egyptian fleet went to the Land of punt for seeking a kind of flavor named "myrrh", and aromatic plants which has dense exotic style for the queen Hatshepsut.

3500年前的一个古埃及的舰队到&彭特之地&寻找一种叫没药的香料。