流變測量學 的英文怎麼說
中文拼音 [liúbiàncèliángxué]
流變測量學
英文
rheometry- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
-
In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律,並耦合進氣畸變的影響,同時與壓氣機氣動性能和氣動穩定性相關聯,作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機( lsc )試驗器,採取在靜子葉片表面埋入動態壓力傳感器的實驗方法,對葉尖、葉中和葉根三個截面的動態壓力進行了測量,獲得了大量的可靠的實驗數據。Eight trapezoid labyrinth flow - channels are designed through modification to the cell dimension and the number of flow cells based on the parameterized structural design. integral emitter prototypes combining exterior hull and exterior flow - channel are built using rapid prototyping technique, and structural dimension of those flow - channel are measured by optical microscope, the measuring results showed that the design can completely meet the requirement of emitter accuracy
文中以參數化的設計思想,通過改變梯形迷宮流道單元尺寸和單元數設計了8種梯形迷宮流道,採用快速成形技術製作出外管與內迷宮流道一體化的滴頭原型;利用最小標注尺寸為50nm的光學顯微系統對滴頭流道結構尺寸進行了測量,分析結果顯示流道尺寸精度完全滿足滴頭的製作要求。In this paper, we study the most serious damming section of the east - one main canal, which is from the entrance of the hao wan flume ( chainage12 + 123. 6 ) to the exit of shang tian yuan tunnel ( chainage24 + 091. 1 ). the main content is analyzing the flow characteristic of the canal, setting up mathematical model of the discharge condition of the east - one main canal, according to the survey section and actual roughness factors, building, bend and so on, we divided the canal into more than loocaculation segments. each segment is calculated by microsoft excel electrical table through computer as permanent transition flow of non - prismatic channel
本論文研究的渠段為陸渾灌區東一乾渠壅水最為嚴重的渠段,從郝灣渡槽進口(樁號12 + 123 . 6 )至上天院隧洞出口(樁號24 + 091 . 1 ) ,其主要內容是,分析渠道水流特徵,建立東一乾渠輸水狀況的數學模型,根據測量斷面及實際糙率、建築物、彎道等因素的不同,將渠道劃分成120多個計算段,每段按非稜柱體恆定漸變流,運用microsoftexcel電子表格進行編程計算。Methods cerebral blood flows were simulated on hemodynamics models of cerebral blood on condition of normal and stroke with practical measured normal carotid blood pressure pre - ecp and during ecp
方法將實際測量的正常的頸動脈血壓和進行體外反搏時的頸動脈血壓作用於正常情況下和缺血情況下腦血流動力學數學模型,模擬上述情況下腦動脈血流的變化。With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones
通過建立速度跟蹤束流的數學模型,較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法,成功地解決了速度精度問題(誤差在士1 %內) ;通過檢測接近開關觸發的脈沖數,適時校核所有小車位置,消除各車之間距離計算誤差,從而很好地解決了距離累計計算誤差。The key factors to make the slide is controlled to make the model be similar in geometry, material and fabric with the antetype, then simulate the infection of river, digging of road and so on, measure the data of the distortion of model, analyze the reason of the distortion and factors of the slide
試驗抓住造成滑坡的主要因素,根據所得的巖石力學參數及結構面參數,在幾何條件、模型材料、結構面條件等方面都基本滿足相似原理的情況下,對模型進行了河流下切、公路開挖等條件的模擬,測量觀察邊坡的卸荷回彈與層面的彎曲變形情況,利用所側數據分析論證滑坡的形成機制和影響因素。Due to the advantages such as short response time, easy operation, and convenient to comprehend the wavefront modes, the hartmann wavefront sensor ( h - wfs ) is widely utilized nowadays in real - time adaptive optics system, turbulence statistical characterization, optical components test, light quality evaluation, laser atmosphere communication, the wavefront correction of ultrahigh power laser pulses, as well as human eye aberrations measurement. the detection accuracy is important to the performance of the whole optical system. considerable efforts have been performed in the investigation of h - wfs wavefront detection techniques in past years
哈特曼波前傳感器具有實時探測,易操作,可以直觀顯示波前畸變分佈等優點,被廣泛地用作自適應光學系統的波前信息探測和波前畸變補償,大氣湍流統計特性表徵,光學元件檢測,光束質量評價,超強激光脈沖波前整形,激光大氣通信以及人眼象差測量等各個領域之中,其探測精度的高低對整個光學系統的工作性能有著極其重要的影響。Based on the fractal character of the small watershed topographic feature, the spatial and temporal variation character of sediment yield of the watershed model, the dynamic developing process and fractal character of the topog raphic feature of the watershed model, and the coupling relationship between the sediment yield and the topographic feature of the watershed model are " studied by simulate experiment, fractal theory, high precise photogrammetry and gis technology. the validation research is conducted in chabagou watershed where the observation data of rainfall, sediment and runoff for 11 years is collected. the study provides new theory and method for the topographic feature quantitative research in the prediction model of small watershed sediment yield
本文依據流域地貌形態所具有的顯著分形特徵,從模擬實驗出發,利用分形理論和方法,結合高精度攝影測量和gis技術,對流域模型侵蝕產沙時空變異特徵、地貌形態發育過程及其相應的分形特徵、流域模型侵蝕產沙與地貌形態耦合關系進行了深入研究,並以具有11年降雨泥沙徑流觀測資料的岔巴溝流域為例進行了驗證研究,為實現從單坡面侵蝕產沙模擬、預報向流域侵蝕產沙模擬、預報轉化過程中地貌形態參數的提取提供了理論和方法,為黃土高原小流域水土流失綜合治理提供了科學實踐依據。Abstract : the paper proposes a mathematical model of a / d converter with quantizing error, nonlinearity and differential nonlinearity errors for computer simulation, and based on the model, the errors caused by voltage change, current change and phase change in the power measurement are analyzed by computer simulation for both the asynchronous and quasi - synchronous sampling algorithms
文摘:本文提出了具有量化誤差、非線性誤差和微分非線性誤差的a / d轉換器的數學模型,在該數學模型的基礎上,模擬分析了非同步采樣法、準同步采樣遞推演算法各種情況下的誤差,包括功率測量中電壓線性、電流線性、相位變化誤差及電壓測量的誤差。Finally, after the long - term ion migration test, we analyzed the relation between the current and accumulative charge with the test time, computed the ion mobility and migration distance, and analyzed the distribution variety of na + and k + in the test samples
對10支試品進行了長期離子遷移試驗,測量了泄漏電流曲線和累計電荷量隨時間變化曲線,計算了試品的離子遷移率和遷移距離,並對試品na ~ + 、 k ~ +的含量進行了化學分析。We also found that the rheological behavior of single layer gmt is isotropic. temperature and pressure method has great affection on the distribution of the fiber. second, we measure the pressure change under different molding rate and use extensional viscosities model and shear force model to analysis the data
研究表明: gmt材料具有很好的充模流動性,流動過程中纖維氈保持一個整體; gmt材料擠壓流動行為表現為各向同性;溫度、壓力制度對纖維的均勻分佈影響很大: 2 )通過測量不同合模速率下壓力變化,採用拉伸粘度模型( extensionalviscositiesmodel )和純剪切流動模型( shearforcemodel )對數據進行分析,導出了描述gmt材料宏觀行為的流變學參數。The relation between rheological breaking ratio and plastic work is set up according to the equation relation between outer plastic work and energy of plastic deformation. it is helpful to the understanding of elasto - plastic constitutive relationship of rockfill and braking of particles. based on analysis of test result, in - site observation data, this paper put forward a quantitative relation between rheology and valley shape, rockfill mechanical parameters, such as dry density, compressive modulus, softening factor, pore ratio, etc. the main factors influencing the rheological behavior of rockfill can be classified into inner factors and outer factors
堆石作為面板壩的主體,影響其流變的因素頗多且十分復雜,既有內因也有外因,根據試驗、原型觀測資料對內外因素所做的分析,本文提出了流變與河谷形狀等外因、流變與壩體常規物理力學指標等內因的定量關系和影響堆石流變的多因素綜合表達式,由此建立了堆石流變與堆石常規物理力學指標(如干密度、壓縮模量、軟化系數、孔隙比等等)之間的聯系。Both of the prices of raw materials and products and reconciliation precision are integrated into one objective - economic loss. then, sensor network design is defined as a problem of multi - objective optimization. both of the cost and economic loss are used as objectives
針對物流測量網路,綜合考慮物流價格和變量協調精度,提出了一個經濟損失最小的目標函數,並將線性測量網的傳感器配置問題定義11飯杠大學博士學位論文為一個多目標優化問題,將配置費用最低和經濟損失最小同時作為優化目標,以變量可觀性、冗餘性、控制和工藝要求等作為約束條件。To study the aircraft - engine stability assessing technology about total - press distortion, four different structure insert - boards and testing schemes are designed, based on the technology of russian insert - board distortion and assessing compressor stability of english and usa. the low speed compressor ( lsc ) at college of energy and power in nuaa is used to carry out the all insert - board distortion experiments studies
為了能夠更清楚地認識俄羅斯關于總壓畸變下的航空發動機穩定性評定的技術,本文在了解俄羅斯插板畸變試驗技術和英美等國家的穩定性評定技術的基礎上,設計了4塊不同結構形式的插板畸變擾流器裝置及試驗測量方案,利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機( lsc )試驗器,完成了各插板的畸變試驗。It was found that the electrorheological properties, the dielectric properties, the temperature dependence and the sedimentation stability of the typical supramolecular complex er fluids were much higher than that of pure - cyclodextrin polymer. furthermore, the er behaviors can be regularly affected by the cross - linked degree of the supramolecular complex. the results indicated that the suitable range of cross - linked degree was 4 - 8
對比測試超分子配合物及主體材料配製的電流變液,發現超分子配合物電流變液的介電性能、流變學性能、溫度效應以及抗沉降性能等均有明顯提高,並發現聚合物的交聯度對電流變效應影響較大,可以作為調節主體材料結構與性能的特徵量。Power transformer test is simulanted in test - room, try to prove that online measure of transformer test is feasible. the test results are satisfaction. in the end, there is software design : the instrumented - test - interface is developed ; location computer entering to sample state is the same time, and after the same " log time ", it stops the data sample note. every test signal data keeping in the data note memorizer is at the same time, so it realizes data synchronization collection. some blocking design in the process of software design can apply to the other software
文章的最後,針對變壓器試驗微機測試系統對電流、電壓、功率等變量數據採集的特殊要求,分析了同步誤差的產生原因,給出了同步軟體采樣的無差條件;建立了電壓電流有效值和平均功率測量誤差的數學模型,提供了減小測量誤差的措施;應用「同步軟體采樣技術」 ,不需要增加采樣周期數,不需要硬體同步環節,較好地解決了同步誤差對測量精度的影響。At the same time the scientists used a brain scanning technique known as functional magnetic resonance imaging to measure changes in the blood flow in the brain
同時科學家使用一種稱為機能磁共振的腦掃描成像的技術來測量腦中的血流量改變。Workability - design of fresh concrete was studied from rheology aspect. mortar slump flow test was further developed to evaluate properties of water - reducers and compatibility between cement and water - reducer for mortar. a method for measuring water absorbed by coarse aggregate in fresh concrete was put forward
從流變學角度對新拌混凝土工作性進行了以下研究:進一步完善了砂漿坍落擴展度試驗方法,用於測評砂漿中減水劑飽和摻量及水泥對外加劑的適應性。In the design of optical system, to improve system precision, the fiber optic coupler is added to make a laser pulse circle ; in the unit of photo detection, we make a high - precision temperature compensation apd bias circuit, which allows system to abate the noise caused by temperature changer and dark current
應變測量系統主要由光源、傳感光纖、光電探測器和信號處理電路組成。在光學系統設計中為提高系統的精度採用了光纖定向耦合器實現光脈沖的循環;在光電轉換單元上採用高精度溫度補償的apd偏置電路,減小了溫度和暗電流帶來的噪聲干擾。Thirdly, cbt ' s characteristic of the strain v. s. the applied pressure is studied, on the basis of this, a new scheme of the straight bourdon tube ( sbt ) is presented, a sbt is designed and fabricated, and then the strain - pressure characteristics of both the cbt and sbt are measured experimentally using a strain measuring technique, a comparison between the cbt ' s and sbt ' s strain characteristics is also made. finally, theoretical models of a fbg fluid pressure sensing system scheme based on the bourdon tube are developed, and a fbg - based fluid pressure sensing system using the transverse strain - pressure characteristic of the sbt is designed and set up
首先,詳細介紹了fbg的基本光學傳感特性,並測量了fbg的溫度、應變特性;其次,研究了c型彈簧管的位移?壓力特性,並利用ccd成像和計算機圖像處理技術對其進行了非接觸測量;再次,研究了c型彈簧管的應變?壓力特性,在此基礎上提出直彈簧管的設計方案,並製作了直彈簧管,採用應變測量技術對c型彈簧管和直彈簧管的應變?壓力特性分別進行了測量,對兩者的應變特性做了比較;最後,建立了基於彈簧管的fbg壓力傳感系統理論模型,設計完成了基於直彈簧管橫向應變?壓力特性的fbg流體壓力傳感系統。分享友人