1. A new spiral edge of the ball-milling cutter force model has been built which uses the theoretical analysis of the cutting force on the basis of ball milling bladed lines of the geometric model that takes ball milling cutter into account.
卞化梅，球头铣刀加工曲面的切削力解析建模在球头铣刀刃线的几何模型基础上，采用理论切削力分析的方法，建立了新的螺旋刃球头铣刀的铣削力模型。
2. In this paper, we have studied the interaction between dioxins and AhR roundly, with the link of the newest research findings referring to the toxicity of dioxins all over the world and based on the study of Molecular Biology, while utilizing the methods of homo-modeling and molecular docking. In the choice of 75 PCDDs and 135 PCDFs as research objects and mouse AhR PAS-B gotten by homo-modeling as receptor, we built the reliable theoretical model. At the same time, we have built quantitative structure-activity relationship model which taking into account the information of ligand and receptor. We picked up the parameters from docking result such as minimum docking energy, H-bond distance between active amino acids and ligand, using for QSAR study for part of PCDFs which have bio-activity data, gotten the QSAR model for toxicity and variables. It is shown that there is good interrelationship between toxicity and variables for the interaction of dioxins and AhR, with R~2 value of 0.893 and q~2 value of 0.825, which established the academic base for forecasting toxicity effects of unknown dioxins.
本文紧密结合全球研究Dioxins毒作用生物过程的新成果，以分子生物学为基础，同源建模和分子对接的分子模拟方法为研究手段，选取了所有75个PCDDs和135个PCDFs为研究对象，同源建模得到的鼠类AhR PAS-B部位为受体，系统研究了主要二噁英类化合物与芳烃受体蛋白的相互作用，建立了Dioxins与AHR相互作用的理论模型，得到了相互作用的AhR活性位点残基；同时，本文建立了同时考虑配体和受体以及相互作用信息的定量构效关系(quantitativestructure-activity relationship，QSAR)模型，将最低对接能量、活性位点氨基酸与配体分子间的氢键距离提取出来作为变量引入QSAR研究中，并结合一些拓扑学指数，对部分有生物活性实验数据的PCDFs进行了QSAR分析，得到了毒性和变量的QSAR模型，结果表明，Dioxins与AhR作用的氢键距离和最低对接能量变量同它们的毒性存在较好的定量构效关系，其建模的平方相关系数达到0.893，LOO交叉验证的平方相关系数达到0.825，进而为预测未知毒性Dioxins对生物体的毒作用大小奠定了理论基础。
3. danci.911cha.com
3. The theoretical formula computed result indicated that, compared with other types of skew bridges, slant leg rigid frame bridge without abutment, on account of its unique structure, can effectively restrict in-plain displacement, and thus can ensure the safety of structure.
理论公式的计算结果表明：与一般的斜桥相比，斜交无桥台斜腿刚架桥由于其自身独特的构造，可以有效地限制其平面内的位移，从而保证结构的安全。
4. On the basis of a great deal of the experimental data processing and analysis, the combustion converted account reaction rate constant, the unstable heat-exchange coefficient variation law between the airflow and the roadway rock and the codomain determined under different fire conditions have been provided with the correctness of the theoretical calculation formula for description of the airflow energy loss of the fire area tested and verified, a large number of the basic data concerning mine fires obtained.
通过大量实验数据的整理分析，给出了矿井火灾时期燃烧折算反应速率常数、风流与巷道岩石间的不稳定换热系数的变化规律及不同火灾条件下的取值范围，验证了火区风流能量损失理论计算式的正确性，并获得了大量的矿井火灾基础数据。
5. There is no theoretical objection to crediting an accumulated amortization account rather than the intangible asset account, but this method is seldom encountered in practice.
理论上不反对贷记累计摊销账户而非无形资产账户，但这种方法在实践中很少遇到。
6. The manager should be able to know, at each and every stage, what his real cash situation is - as opposed to the theoretical cash situation which includes accounts payable and account receivable in the form of expenses and income.
经理人应该能够知道，在每个阶段，他的实际现金状况是-而不是理论上的现金状况，其中包括应付账款和应收账款的形式，费用和收入。
7. 公共查询·英语单词
7. A theoretical account based on a similarity between the model and the phenomena that are to be explained.
基于模型和要解说的想象的相似性的理论说明。
8. The article gives an account of the theoretical foundation of the administrative law, an
本文以行政法的理论基础为出发点，以法治为线索，分析借鉴西方国家的行政责任制度并探讨了我国行政责任制度的若干理论问题。
9. theoretical account的意思
9. When You are able to independently account for a theoretical argument, apply this to practical reality and, at the same time, develop both, we can say that we have reached our aim.
当你能够独立地占了理论性的问题，这适用于现实，并在同一时间，发展这两方面，我们可以说我们已经达到我们的目标。
10. Our theoretical simulations can account for major experimental findings, and can therefore illustrate the origins for these results.
我们的计算很好地解释了现有的实验结果，我们关于硼氮纳米管吸收光谱和振动光谱的理论模拟与实验值非常吻合。
11. Transformational generative grammar is a theoretical grammar which attempts to account for this aspect of speakers''knowledge of construction.
转换生成语法理论是语法试图占这方面的发言者的知识结构。
12. Moreover, Yao and Morel theoretical models were introduced to account for the coalescence and breakage mechanisms of bubbles.
介绍了描述气泡聚并与破裂机制的Yao和Morel理论模型以及Hibiki等人的实验方法。
13. Taking the problems stated above into account, theoretical study on preparation of entangled states and their applications in quantum communication are mainly discussed in this dissertation.
所以，研究量子纠缠及其在量子信息中的应用，不仅对深刻理解量子力学的特性有着重要的学术意义，而且对开发和利用新型的信息处理方法等有着重要的实用价值。
14. Then, the theoretical basis of hemodynamics were introduced specifically, including constitution and mechanical properties of blood vessels, stress in vessels, and vascular remodeling. Thirdly, the thesis studied the blood transport properties again through a vascular network which was simulated by the WBE fractal-like tree network model. But, here, I took wall shear stress and vascular remodeling into account, and made Murray`s optimization as the core idea throughout the thesis. Above all, the optimal model was applied in the evolvement of biologic individual, namely, in the processes of growth or decline.
第三章为全文的重点，文中沿用了Murray的改进模型(即WBE类分形树状分叉模型)，利用血液动力学中血管重建的重要理论，依据Murray的最优化原则，重新研究了血液在该网络中的输运特性；最后，将这个最优化的WBE模型运用于生物个体状态演化过程中，发现在生物个体生长或衰退时，由该模型得出的毛细血管的血压和血流流速的变化结果与实际情况不符，而且该结果是不利于生物个体生长。
15. theoretical account的解释
15. Thirdly, it lacks a theoretical framework and thus fails to account for the nature of language.
第三，它缺乏一个理论框架，因此没有考虑到语言的性质。
16. 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。
17. Thus, for instance, it may come as a shock to mathematicians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct descriiption of this atom, but only an approximation to a somewhat more correct equation taking account of spin, magnetic dipole, and relativistic effects; and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field-theoretical equations.
因此，举例来说，对数学家而言，了解到下述情形可能会令其惊愕不已，即薛定谔的氢原子方程式并非是对该原子作出的一种绝然正确的描述，而仅仅是个近似值，趋近于一个在某种程度上更为正确的将自旋、磁性偶极子、以及相对论效应考虑在内的方程式；而这个得以纠正的方程式就其本身而言也只是一个不完美的近似值，趋近于无穷无尽的一整套量子场论方程式。
18. Thus, for instance, it may come as a shock to mathematicians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct description of this atom, but only an approximation to a somewhat more correct equation taking account of spin, magnetic dipole, and relativistic effects; and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field- theoretical equations.
因此，举例来说，对数学家而言，了解到下述情形可能会令其惊愕不已，即薛定谔的氢原子方程式并非是对该原子作出的一种绝然正确的描述，而仅仅是个近似值，趋近于一个在某种程度上更为正确的将自旋、磁*偶极子、以及相对论效应考虑在内的方程式；而这个得以纠正的方程式就其本身而言也只是一个不完美的近似值，趋近于无穷无尽的一整套量子场论方程式。
19. Thus, for instance, it may come as a shock to mathematicians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct description of this atom, but only an approximation to a somewhat more correct equation taking account of spin, magnetic dipole, and relativisticeffects; and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field-theoretical equations.
因此，举例来说，对数学家而言，了解到下述情形可能会令其惊愕不已，即薛定谔的氢原子方程式并非是对该原子作出的一种绝然正确的描述，而仅仅是个近似值，趋近于一个在某种程度上更为正确的将自旋、磁性偶极子、以及相对论效应考虑在内的方程式；而这个得以纠正的方程式就其本身而言也只是一个不完美的近似值，趋近于无穷无尽的一整套量子场论方程式。
20. The best source of information for the moment is a theoretical model of where the cloud might be, taking into account the prevailing wind and other weather conditions.
考虑到盛行风与天气条件，目前最好的信息来源是尘用埃云的理论模型测定云层位置。