实际训练

In this research, our main work is to establish a fire combustion chamber as a simulator and conduct an actual simulation of the scene of a fire.

因此在本研究中，主要的工作就是建立一套火灾燃烧室的模拟器，进行实际火场的模拟测试，并希望此一火灾模拟器能具有商品化潜力，除了提供火灾救灾人员训练之用外，亦能提供火场情境数据予学术界研究之用。

What I've said is only some general tips or ideas for practical sills .

我所说的只是训练实际技能的一些概括性提示或想法。

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。

The study on the pre-estimation of rice noodle quality by ANN showed that the trained BP network model calculated the quality effectively with the mechanics properties and rice characters. In the model, the number of neural cells (the number of the input vectors+2) in the hidden layer was satisfied with the requirement of the network.

通过采用人工神经网络对米粉品质预测的研究，认为可采用经过训练的BP网络对米粉力学性质及原料米特性对米粉品质进行有效的预测；在此类网络模型的设计中，采用一个含有（实际输入分量数+2）个神经元数的隐含层即可满足设计要求。

The "Christmas tree" fire simulator creates the conditions encountered during the control and suppression of a fire in industrial pipes. The main use of the product may provide the populace and the fire fighter to understand industrial piping fire burning scenario, therefore, it can establish knowledge for the industrial piping fire protection. The cabinet pattern type (42ft×8-1/2ft size) is a mobile fire simulator. These models own the potential to be developed into commercial products. It not only provides with the training purposes for the fire disaster relief personnel, but also can provide the scene of a fire situation data to give the academic circles in using of the research.

火灾可视为烧毁一切的一种直接损失，近年来国内火灾频传，消防人员必须位於第一线面临火场带来的威胁性，如能建立一个模拟火灾实际情境之软、硬体设备，提供真实火场的救灾人员模拟训练与展示，并配合运用电脑软体规划模拟各种燃烧之性质，必能有效达到推广防灾、消防方面的宣导，并且建立此火灾模拟器为模组化设备，使模拟器更具商品化之价值。

People generally believe that skills are perceptual and right-sided, which seems to have nothing to do with the left side, especially in rational analysis.

我们在实际的美术工作中，长期以来都存在右脑模式与左脑模式隔离的倾向，认为技能训练是纯然感性的，右脑模式的，似乎与理性即左脑模式的理论分析关系不大。

Some of you may think that direct bicep workout is not necessary because other compound exercises have actually worked on our biceps.

一些你可能会认为，直接二头肌训练没有必要，因为其他复合演习，在我们的实际工作二头肌。

Between the workouts and real work, i've had little time for anything else.

之间的训练和实际工作中，我已经很少有时间为一切。

This on the job training was invaluable.

这种在实际工作中得到的训练是无法用价值衡量的。

However, some problems of it, such as the expenditure problems in training SVM, the SVM's generalization function, the selection of the kernel function etal, have not been well resolved in the long run.

但是，支持向量机的训练费用、泛化性能以及核函数的选择等关键问题，长期以来都没有得到彻底的解决，这使得支持向量机的理论优越性没能够在更广泛的实际应用中凸现出来。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。