管壓濾法 的英文怎麼說
中文拼音 [guǎnyālǜfǎ]
管壓濾法
英文
pressure-filter-tube method-
The paper analyze many methods of water demand prediction which include many up to date methods and some in common use, and it bring forward some new combinatorial methods which can meet the need of optimization model in precision, such as season exponent, auto adapt filter, season exponent combined grey model, etc. based on the cost and time of modeling jt mainly study the macroscopic network model which describes the correlation between nodal pressures and water plant discharge
針對時用水量預測模型，採用季節指數法、自適應指數平滑法、季節指數聯合自適應過濾法、指數平滑聯合自回歸法、季節指數聯合灰色系統法等具體預測方法，其中數種方法預測精度達到工程要求。實踐結果表明，開發的聯合法效果較好。考慮到管網宏觀模型不但能描述整個管網的工作狀態，而且建模所需成本低，運行速度快，省時省力，主要研究了管網宏觀模型的建立方法，分析測壓點布置原理並編製程序。The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics
採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。Non - destructive testing - measurement and evaluation of the x - ray tube voltage - constancy check by the thick filter method
無損檢驗. x射線管電壓的測量和評估.用厚濾膜法進行連續檢驗The denoising results about solids holdup and pressure fluctuation signals of gas - solids cfb riser indicate that wpa denoising method based on fractal theory can efficiently differentiate the noises from the solids holdup signals, and the denoised effect is much better than that by filter method based on the fourier transform
氣固循環流化床提升管的顆粒濃度和壓力波動信號的去噪結果表明，基於分形理論的小波包去噪方法能有效地區分真實信號和噪聲信號，去噪效果優于傳統的傅立葉變換的濾波方法。Non - destructive testing - measurement and evaluation of the x - ray tube voltage - part 2 : constancy check by the thick filter method
無損試驗. x射線電子管電壓的測量和評價.第2部分:用厚濾膜法的穩定性檢驗( 2 ) the characters of the signal for the low voltage electrophoresis chip, signal processing theory such as the nyquist theory, fft, fir filter and the wavelet have been discussed after the learning of low voltage electrophoresis theory and the analyzing of the low voltage electrophoresis chip
2在深入了解重慶大學微系統研究中心研製的低電壓分離電泳晶元結構、原理、信號檢測方式的基礎上，分析了毛細管電泳晶元信號特點以及相關的數字信號處理方法（奈奎斯特抽樣定理、傅立葉變換、有限長單位沖激響應（ fir ）濾波器、小波變換） 。分享友人