phase flow s 中文意思是什麼
phase flow s
解釋
滲流-
The dissertion, after introducing physical geography situation and societal economic sitiuation of chongqing, has also analysed the basic feature of water resources in chongqing, at present the water resources utilization in chongqing is still in traditional phase. there are so many faults and shortcomings in water resources management system. the construction of water resources institutions and regulations is fallen behind. the supply of water resoures has not sufficiently satisfied the demand to water resources. the condition of water quality has not radically improved. soil losses is still serious. the incidence of flood and drought is very high. in accordance with present condition of water resources utilization in chongqing, the dissertion argues that it should strengthen people ' s understanding to water resources sustainable utilization for chongqing ; reform the present water rexources management system and have a try on water affairs management system in chongqing ; make effort to construction of water resources " institutions and regulations ; realize demand management, constuct save - water model society ; according to actual condition, strength water utilization constrution, then realize the balance between water resources supply and demand ; according to the idea of " control resources, conduct flow ", control water pollution, realize sanitary generation ; control soil losses and protect water enviroment ; construc t the system of flood control and diaster prevent
在對重慶市的自然地理情況和社會經濟情況作了介紹之後，還分析了重慶市水資源的基本特徵，目前重慶市的水資源利用還處在傳統的開發利用階段，水資源管理體制還存在許多弊端，水的法規制度建設也相對落後，水的供給還不能完全滿足需求，水質狀況沒有得到根本性的改善，水土流失還很嚴重，水旱災害發生的頻率比較高。針對重慶市水資源利用的現狀，本文提出：應加強對水資源持續利用的認識；改革目前重慶市的水管理體制，嘗試水務局管理體制，相應加強水的法規和制度建設，實現需水管理，建立節水型社會；根據實際情況，加強水利建設，實現水的供需平衡；依據「控源導流」的思想控制水污染，實現清潔生產；治理水土流失，保護水環境；建設防洪減災體系。 -
In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design
第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。 -
It implies that gene expression in plant cells might have changed under the stimulation of sound wave. thirdly, the cell cycle of protoplast of control group and stimulated group ( stimulating for 9 days ) was estimated by flow cytometer. the results showed that the number of cells of stimulated group decreased in g0 / g1 phase and increased in s phase
圍繞中心法則分別測定了dna 、 rna和可溶蛋白質的含量，發現聲波刺激組的dna含量變化不明顯，而rna和可溶蛋白質的含量都有所升高，且以刺激9天的實驗組最為突出，表明在強聲波的作用下，有關應力響應的轉錄因子被啟動，轉錄水平提高，從而翻譯合成較多的蛋白質，促進植物的生長發育。 -
Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。 -
As to the simulation, three - dimensional n - s equations and two - phase flow model, in which the liquid toluene spray as discrete particles was considered, were employed to describe the turbulent combustion processes in the combustion chamber. the mass and energy transfer between the two phases were calculated by the droplet evaporation model, and the arrehnius model was used to obtain the gas chemical reaction rate. the details of 3d flow field, the distributions of temperature and compounds were obtained by solving the equations
數值模擬方面，應用三維湍流n - s方程以及顆粒軌道模型描述了激光器燃燒室內部的噴霧兩相燃燒流動過程，兩相之間的質量、能量交換由液滴蒸發模型計算，氣相化學反應速率由arrhnius公式計算，通過耦合求解氣液兩相模型方程，模擬了燃燒室三維流場，得到了燃燒室內的溫度和組分濃度分佈。 -
Chapter six introduces half - model test study of different parameters with ao effects utilizing the shack - hartman technology. chapter seven investigates the simulation technology for ao, mainly in 2 - d flow - field. this paper has a wide scope, ranging from theoretical foundation of ao to its engineering physics methods, from low temperature to high temperature that influence the index - of - refraction, from 2 - d to 3 - d ( density field ), from high speed to hyper - speed ( interceptor ' s speed ), from model test to numerical simulation ( optical phase measurement )
並進行了實驗驗證；第四章主要探討二維流場折射率的全息測量技術；第五章介紹了導引頭三維流場干涉測量的試驗方法和數據重構；第六章利用哈特曼傳感器技術對氣動光學效應各種參數進行了半模試驗測試研究；第七章是氣動光學的模擬技術，主要研究二維流場數值模擬技術。 -
The special area of foam was detected for the compound tray of 20 % free area by ccd camera and computer identification technology of gas and liquid two phase flow in column. with the rectangular plexiglass tower in 200mm x 300mm, and it ' s correlation was obtained. this experiment offered data of special area for establishing mass transfer model of foam
在200mmx300nun的有機玻璃方塔內，以空氣水為介質，採用ccd拍攝技術和塔內氣液兩相流計算辨識技術，測定了開孔率為20的復合塔板上泡沫層的氣液接觸比表面積，並建立了關聯式。 -
The most important property for hamiltonian systems is the poincare and liuville ' s conservation law of phase areas, i. e., the phase flow is a one - parameter symplectic transformation
哈氏系統最重要的性質是龐加萊-劉維爾的一系列相面積的守恆律，即系統的相流是一個單參數的保辛變換。 -
At that time, cytosolic fluorescence intensity decreased to normal level, which shows that most of cells get through the gl / s point and enter the log phase. when cultured in medium that neucl was omitted, most of the cells were synchronized at gl stage of cell cycle. with flow cytometry, we found that cytosolic cam content of gl cells was higher than that of normal cells at log stage
在激光掃描共聚焦顯微鏡下觀察不同周期時相裂殖酵母細胞中cam的濃度及分佈變化，結果表明，分裂期細胞總體熒光強度強于間期細胞；而對同一細胞內熒光強度的分析說明，間期細胞的熒光主要分佈於胞質中，細胞核內則分佈較少；而正在進行有絲分裂的細胞內熒光主要集中於赤道板處；剛完成有絲分裂的細胞內熒光則相對集中於兩端或其中的一端。 -
The measurement of oil / water two - phase flow is primarily accomplished by the combination of total flow rate and holdup measurement, and at present, the rotator flowmeter is used to measure the total flow rate. since the rotator flowmeter has movable parts, which makes its responsibility behave nonlinearly under poor environment of me under hole whose fluids have very complex and changeful characteristics and affects the measurement precision. what ' s more, the widely used centralized measurement instrumentation meets problems in oil wells characterized with high production or high water cuts
通常油水兩相流測量主要是通過總流量和持率的測量組合來完成的，目前在總流量的測量中主要使用的是渦輪流量計，由於渦輪流量計具有可動部件使其在流體特性復雜多變的惡劣井條件下的響應呈非線性變化規律，影響測量精度，此外，普遍採用的集流型測試儀器在高產井及含水率高的油井中使用也遇到困難，為此，一種新型的適合非集流型點測的測試方法和測試儀器亟待發展和推廣。 -
Analysis indicates the " low pressure closed reticular flow region " results in the non - equilibrium of pressure along the primary jet ' s orifice. to obtain as large vectoring angle as possible, the optimal ranges of angles, frequencies, velocity amplitudes, and distances from the microjet actuator to the primary jet exit were discussed. the relationship between the vectoring angle of the primary jet and the phase - difference of two adjacent actuators was analyzed
分析了「拉」模型單作動器模式下，微射流作動器的入射角度、驅動頻率、速度幅值及與主射流間的距離對主射流偏轉程度的影響，並確定了作動器工作參數的最佳范圍;分析了「拉」模型雙作動器模式下，不同的相位差對主流偏轉程度的影響。 -
On the basis of analyzing the theory of gas - solid two - phase flow, the paper put forward two ways of lightening the erosion of centrifugal fan from the point of view of initiative preventing erosion : changing fan ' s inlet and changing fan ' s impeller
本文在分析離心風機氣固兩相流動理論的基礎上，從主動防磨角度提出了兩種減輕風機磨損的方法：改造風機進氣箱和改造風機葉輪。 -
Chart industries leads all other manufacturers in the number of cryogenic piping systems engineered, fabricated, and installed in the u. s. we combine real world experience with computer analysis to develop a system with the desired flow rate, pressure drop, phase quality, and the best balance between performance and economy
查特公司領導著全球其他製造商，從事真空絕熱管道的設計製造和安裝。我們結合實際經驗和先進的電腦技術進行系統設計，提供合理的流量壓降液相質量，及最佳的性能-成本比。 -
2. after studies the 140mm series chamber gun ' s physical model, it ' s two - phase flow model has been established
建立某140mm口徑串聯多藥室坦克炮的物理模型及一維兩相流數學模型，運用marccormark差分格式進行數值模擬。 -
Mw capacity of phase 1 of the guangzhou pumped storage power station, at conghua. off - peak electricity from the capco system and guangdong nuclear power station is used to pump water from a lower reservoir to an upper one. the water is allowed to flow downhill during the day to generate electricity to meet hong kong s peak demand
青山電力有限公司的電力系統及大亞灣核電站在非用電高峰時間發電，把低地水塘的水抽到高地的水塘內，到日間便藉助水向下流的動力發電，以滿足本港用電高峰期的需求。 -
By now, many achievements have been acquired, including hundreds of empirical correlations to predict the chf value, and models for chf in different conditions, what ' s more, more basic research about two - phase flow, heat transfer, and behavior of gas bubble etc. whereas, all approach of predicting chf value or explaining the phenomena, has disadvantages of limited parameter range and accuracy
包括各種參數條件下的經驗公式，對于不同機制下的理論研究以及更加基礎的兩相流動、兩相傳熱、汽泡動力學等多方面的研究。但是在所有目前已經取得的成果中，還是存在適用范圍的局限性以及精確性的問題，因此繼續對chf現象進行深入研究是很有必要的。 -
The proposed driving circuit includes a low - pass filter circuit 、 feedback circuit 、 signal generated circuit 、 phase shifted circuit and power inverter circuit. a ti cooperation ' s dsp ( tms320lf2407a ) is chosen for the drive and control system based on the characteristics of usm, the interface circuit 、 each function ’ s flow chart and algorithm program are designed
根據usm的特點，選取一款專用於電機控制的dsp晶元tms320lf2407a ，設計了硬體介面電路、各功能部分的流程圖及控制演算法程序，以ccs為編譯環境，進行電機整個控制系統的軟體編寫與調試。 -
In allusion to the requirement, a new multiphase - flow measuring technology based on the optic - fiber sensors is considered. proportion of components can be obtained by measuring multiphase - flow ' s optic refractive index. real - time distinguishing oil quality will be realized, without the need to separate out individual phase components
針對這種需求，提出了一種基於光纖傳感器的多相流計量技術，根據多相流體光折射率的變化推算出各組分的比例，無需對多相流進行分離就可以實現對原油品質的實時判別，從而達到快速修正採油工藝的目的。 -
S. g. kandlikar, an improved correlation for predicting horizontal and vertical tube, two - phase flow and heat transfer conf. seattle, w. a. ( 1983 )
王維城，劉志堅，王補宣，張立寧.強化水平管內流動沸騰換熱的實驗研究.工程熱物理學報， 1991 ， 12 （ 1 ） : 54 - 58 -
This paper explored the theory and technology of the extinction tomography, and it ' s applications in the measurement of gas - particle two - phase flow
本文探索消光層析成像的原理、相關技術及其在氣體-顆粒流檢測中的應用。
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