time critical design 中文意思是什麼
time critical design
解釋
對時間要求嚴格的設計-
This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory
本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。 -
The numerical results, such as the pga, pgv, peak ground displacement, and the three - component time - histories developed for beijing area, have a potential application in earthquake engineering field and building code design, especially for the evaluation of critical constructions, government decision making and the seismic hazard assessment by financial / insurance companies
利用數值模擬方法所得的較為真實的強地面運動參數，即加速度、速度、位移和時程特徵，可為北京地區工程建設的抗震設計、救援設施的選址、以及金融及保險部門的風險性評估提供一定的依據。 -
In the article some critical technology such as multi - thread oci socket and select function was analysed. to meet the requirement of real _ time power network supervisory system, a novel method is proposed to design and realize a data server
結合在河南的工程實際項目，分析了為實現實時電網監測系統的一些關鍵技術（諸如多線程同步、 oci和阻塞模式等） ，最後設計和編寫了中調實時數據服務器程序。 -
As a important component in cppm - gis, this paper illustrates detailedly the mathematics model of optimum design and direct optimization method for drainage pipe - net under gis. as a key stage in planning and designing the drainage system, the caculation of pipe - net is very critical and time - consuming. this paper brings forward the recursive arithmetic for pipe - net and pipeline designed - discharge
在cppm - gis系統中，水力計算模塊是一個重要的組成部分。本文詳細論述了gis環境下建立排水管網優化設計的數學模型、排水管網的直接優化法。 -
The research about the critical technique includes : developing the radiation - hard ccd sensitive to the x and euv ray ; implementing the design of ccd driving clock and signal readout electronic using cpld ; implementing shutter design which can realizing 1ms - 10s exposing time
關鍵技術突破包括：完成x射線和極紫外波段都敏感的抗輻照型ccd技術設計，並利用cpld實現了非規則像素陣列ccd的驅動時序和讀取電子學電路設計和調試：完成1ms 10s寬動態范圍快門裝置設計和調試。 -
Firstly, strategy for safe operation management system is proposed on the basis of operation log. the range of mis in power system has been extended based on operation log of the control. an interface with monitoring and control system is develop, by which information in real - time databased can be read. the system and data structures are presented. and the function and relationships between modules are explained. then the design and implementations of some critical subsystems are discussed in detail
本文首先闡述了安全運行管理系統的策略，提出了以運行日誌為主線管理調度日常的運行生產。擴展了信息管理系統的處理范圍，在運行管理系統中實現了與自動化監控系統的介面，可以訪問實時數據庫中的信息。本文分析了系統的體系結構和數據流程，說明了各個系統的功能和相互關系。 -
The soft design of can communication with the time trigger schedule improve the can node ' s flexibility and reliability. the further work to be done is studying the better method of online event trigger service and complicated message schedule under the critical time constrain by fpga or dsp
今後進一步的工作是研究在時間觸發的基礎上如何更好的完成在線事件觸發服務，以及相應的使用Ｆ Ｐ Ｇ Ａ或Ｄ Ｓ Ｐ等手段在滿足實時性要求的前提下進行更為復雜的報文處理與調度。 -
In the course of the design, critical technologies are applied, such as digital phase - locked loop, fast fourier transform algorithm, universal asynchronous receiver & transmitter, and so on. in the project, as a important component, the module of monitoring the buses " power quality takes a long time
在設計過程中，使用的關鍵技術有：使用cpld模擬多路sspc多種狀態；在對匯流條電能質量的監測過程中採用頻率跟蹤技術? ?全數字鎖相環；應用fpga技術使用fft運算進行諧波分析；通用異步收發器等技術。 -
Finally, fmeca is used to identify the failure mode and effect of components on the system. at the same time, fta is also applied to evaluate the reliability of pcs and analyze the importance of its components. through the above reliability design and analysis, this thesis finds out the weakness and critical components of pcs, and gives some advices of failure prevention, maintenance and design improvement
本文首先研究能源系統可靠性概念並提出了能源系統可靠性指標體系，在此基礎上對能源系統進行了可靠性設計分析，給出了能源系統的基本可靠性模型和任務可靠性模型，並對其mtbf進行了預計，對其額定可用度進行了分配，最後用fmeca來辨識系統中元器件的失效模式及影響，用fta來評估能源系統的可靠性，分析各元器件的重要度。 -
But, as it is not designed for real - time application, windows2000 is not a real - time operating system, and if we design and develop testing and controling system by common method, the real - time requirement of the application will not be satisfied in some time - critical case
然而由於windows2000並不是針對實時性應用而設計的，如果採用普通的技術手段進行測控系統的開發和設計，在實時性要求較高的情況下將無法達到應用的要求。 -
The design considerations and critical algorithms in real - time task scheduler are discussed in detail
詳細討論了實時任務調度器的設計考慮和實現中的關鍵演算法。
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