噪溫比 的英文怎麼說
中文拼音 [zàowēnbǐ]
噪溫比
英文
noise-temperature ratio-
Presents the steady - state programming with constant coolant average temperature and constant live steam pressure, an ideal programming for marine nuclear power plant ( npp ), under which, both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied, and points out that in comparison with the steadysate programming with constant coolant average temperature, the ideal programming can improve the overall operating performance of npp effectively, especially in low - load range, for instance, raise the heat efficiency of npp, decrease the operating noise of main coolant pump, and improve the conditions of design, operation and control of the secondary loop system
雙恆定運行方案是船用壓水堆核動力裝置的理想運行方案.在這種運行方案下，當裝置穩態功率變化時，冷卻劑平均溫度與蒸汽壓都保持不變，與通常採用的冷卻劑平均溫度恆定運行方案相比，有效地改善了核動力裝置的總體運行性能，特別是在低負荷運行時，可以提高裝置經濟性、降低主泵運行噪聲、改善二迴路系統的設計、運行和控制條件，這對于提高船用核動力裝置的運行可靠性和安全性具有實際意義The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc
在分析各國ogfc級配的基礎上，運用礦料體積法進行ogfc級配設計，用正交實驗對礦料級配進行了優化設計，運用數理統計方法分析礦料級配和孔隙率之間的關系，並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程，進而提出了ogfc的合理級配；通過對不同孔隙率典型級配混合料的性能研究，綜合力學和功能性能，得出了ogfc的合理孔隙率范圍：針對高速公路面層對ogfc力學性能方面的要求，本文從瀝青膠結材料、纖維穩定劑兩方面對ogfc的性能進行改善：通過sbs和橡膠粉復合改性的方法開發出了適合ogfc的高粘度改性瀝青，摻加聚合物纖維，提高ogfc的最佳瀝青用量，進而改善了混合料的高溫性能和抗水損害性能，優化設計出能滿足高速公路路用性能，車轍動穩定度達5000次/ mm以上，動融劈裂強度比90 ，透水系數31ml / s ，並具有防滑降噪功能的開級配瀝青磨耗層（ ogfc ）混合料。This method is the amalgamation of wavelet decomposition, relevance process and average, which can raise the signal - to - noise ratio and improve the accuracy of system
該方法融合了小波分解、相關過程及累加平均等技術，能有效地提高系統信噪比，保證溫度測量的精度。Chapter 2 in the design of sensors and switches based on photoinduced electron transfer, fluorescence was often used with high sensitivity and convenience. it is noteworthy that room temperature phosphorescence ( rtf ) has many advantages over fluorescence, e. g., large stokes shift, higher signal to noise ratio, good selectivity and easily measurable luminescence lifetimes etc., and it can be found as a helpful complementary method of fluorescence sensing
第二章在光誘導電子轉移傳感器和分子開關的設計中，熒光由於其靈敏度高、使用方便，受到人們的廣泛關注，相對于熒光室溫磷光選擇性好、信噪比高、較大的stokes位移、壽命易測定等優點，在許多方面與熒光互補。A technique, based on maximizing signal to noise ratio ( snr ) of the system, has been proposed. this method includes the determination of optimum wavelength of the laser and avalanche gain of the avalanche photodiode ( apd )
（ 3 ）從分散式光纖溫度傳感系統的實際設計出發，選取了激光器最佳工作波長，對apd的最佳雪崩增益特性進行分析，得到了使系統信噪比最大的設計結果。分享友人