最大線流速 的英文怎麼說
中文拼音 [zuìdàxiànliúsù]
最大線流速
英文
maximum filamental flow- 最 : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 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...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 流速 : [機械工程] velocity of flow; strength; [水文] current velocity; current speed; flow rate流速管 pi...
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A new planning method - analysis of factors of point line and area and control points optimization, which is based on the analysis of urban spatial structure, is tried to put forward. analyzing the important functional clusters in the spatial layout of the urban, the intracity medium - long distance vehicle traffic major directional desire line how the urban to link up with the highway network and the whole structure of expressway system, the skeleton of the expressway network can be obtained. using the degree of importance method analytic hierarchy process ( ahp ), one or several intersections can be selected
該法對城市空間結構布局中的重要節點、主要的中長距離機動車交通流徑期望線的分佈、大城市與區域干線公路網的銜接以及快速路系統線網的整體結構等進行分層次的分析研究,得出快速路系統線網構架,運用重要度法、層次分析法找出大城市重要功能組團中重要程度最高的一個或數個關鍵交叉口作為快速路系統線網規劃的控制點,考慮快速路線路走向的控制點對線路走向進行優化。And the most advantage of ofdm is that it can convert high - rate data stream into the low - rate and reduce data bandwidth so that multi - path - fading can be transformed into flat fading in wireless circumstance
這種調制技術的最大的好處就是將高速的數據流,變換成并行的低速數據流,減小了數據帶寬,從而可將無線環境中的多徑衰落(頻率選擇性率落)轉換成平坦衰落。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面電流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定電壓下的瞬態分析,得到了轉矩,位移,轉速隨時間變化曲線圖,利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較,採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證,由實驗測得了三相電流波形,並與計算結果進行了比較,對其不對稱性進行了定性分析。The thesis analyzed the present transferring status between pudong airport and shanghai " s incity. through forecasting the long - dated flux of pudong airport and the area near it and combining the planning scheme of shanghai urban rapid mass transit, the thesis learned the helpful experience of the traffic organization in typical airport abroad and used the scientific analyzing model of public traffic flux forecasting to put forward some reasonable suggestion of the bottleneck question between pudong airport and incity : the one is to use the present no. 2 subway as the future airtrain to take on the most part of the flux and meantime present the concept of feeder efficiency to quantitative analyze the choice of feeder station ; the other is to set up cat ( city air terminal ) to convenient the passenger to come airport rapidly and economically in order to lessen the pressure of the traffic and improve the whole service quantity of civil aviation transportation
本文分析了浦東機場與市內目前的換乘現狀,從預測浦東機場及緊鄰空港區域中遠期的客流量入手,結合上海市政府快速軌道交通的規劃方案,並且學習境外典型機場交通組織的有益經驗,利用規劃中的公交客流預測等科學分析模型,對浦東機場與市中心的軌道交通銜接提出了合理的建議:一是利用目前的地鐵二號線作為航空軌道共享線來承擔大部分進出空港的客流,並且給出了以接運效率最大化為目標函數的接運公交軌道站點比選模型;二是在市中心設立城市航站樓以方便旅客快速、經濟地到達機場,從而減少道路交通壓力,提高航空運輸的整體服務質量。It can acquire the voltage on the test appliance and current in the circuit. and it can see these electrical signals as its input and calculates based on the data and gives the parameters and waveform that user needed. the parameters we can get through calculation include power factor, joule ' s integral, available value, maximal value, minimum value, time constant etc. recently, there are many scholar is studying the algorithm that calculate the parameter using test data, but many of them adopt the heuristic method, not using the test data directly
本課題研製一套電器試驗參數高速採集系統,能夠檢測試驗迴路中試品上的電壓信號和迴路中的電流信號,並根據這些電信號的數值利用計算機進行在線計算,並給出用戶需要的各種電參數值和用戶需要的波形圖,通過計算得到的電器參數有功率因數、焦耳積分、有效值、最大最小值、時間常數等。Although the flux per revolution of the optimized pumps is a little smaller than that of tatsuno combined pumps, other characteristics, such as fluctuation rate, maximum pressure angle and velocity fluctuation rate etc, are much better. the methods to cut gears are proposed in the theory for the practical produce in the future
雖然,在體積相等的條件下,優化出來的外圓弧包絡線內嚙合齒輪泵的排量略小於tatsuno組合泵的排量,但其它性能(如:流量脈動率、最大壓力角、速度波動量)都更優。Model cs2 - dn high - speed bag sewing machine has fairly good capacity, adapted automatic lubrication system. we adapted roller bearing in some parts to accelerate the running speed and make sure the life span can be prolonged. this machine is suitable to make paper bag and woven plastic bag in the bag factories for mass produce. when it is equipped with automatic cutter, it formed high - speed bag making system
:本機cs2 - dn為性能優越的高速縫袋縫紉機,採用自動加油系統,並局部採用滾動軸承,轉速提高后,能確保使壽命的延長,適用於紙袋廠及紙塑復合袋等的製作,更適合於制袋流水線上使用,特別是和自動剪刀箱配套后,組成高速制袋系統,成為製作紙塑復合袋最理想的設備,可極大地提高復合袋的產量。A method is provided to measure the friction parameters of the bed. the maximum friction torque, coulomb friction torque, viscous friction coefficient and moment of inertia can be gotten by fitting the free reduced rate curve of the gimbals and measuring the motor current when the motor begins to rotate
提出了一種測量轉臺摩擦特性的方法,通過對轉臺在無外推力作用下的速度衰減曲線的擬合以及電機啟動過程電流和轉速的測量,可以得到最大靜摩擦力矩、庫侖摩擦力矩、粘滯摩擦系數及轉動慣量。Compared with the multi - unit approaches, maximum nongaussinity estimation is superiror in simple theoretical foundation and flexible implementation, and thereof the popular fast fixed - point iteration ( fastica ) based on negentropy approximation has become one of the most popular algorithms for ica
和非線性去相關方法比較,最大非高斯估計的原理簡單、實現靈活,其中基於負熵近似的快速不動點演算法( fastica )已經成為當前最為流行的ica演算法之一。Considering that the time of image preprocessing is the key fact affecting the performance of real time, it designs hardware circuits for median filtering and edge detection. the pipelined and parallel processing methods are used in circuit design to raise processing speed and save hardware resource
針對影響系統實時性最大的圖像預處理部分,在fpga設計中,實現了預處理的中值濾波和邊緣檢測硬體電路,將流水線處理技術和并行處理等技術應用到電路設計中,提高了處理速度,節省了硬體開銷。Year, cost and establish closed factory building and equipment of assembly lineses at 8 million, have already developed one of the mosts advanced manufacturing enterprise of the biggest, facility into scale of emulsion trade now
河北同樂乳膠製品有限公司成立於1991年是河北省最早一家專業生產乳膠製品的企業,經過5年的飛速發展,耗資800萬創建了半封閉式廠房和流水線設備,現已發展成為乳膠行業規模最大、設施最先進的生產企業之一。Abstract : in the internal circulating fluidized bed, there exist the moving zone, fluidizing zone and heat transferring zone with different fluidized air velocities. the convection heat transfer coefficient of immersed tube in the heat transferring zone is impacted by the velocity of the moving zone nearby and its data and change trend are obviously different with those of the common bubbling bed. the maximum heat transfer coefficient is evidently higher than that of the bubbling bed. as the bed materials have not been fluidized in the heat transfer zone, the coefficient has increased highly. the curve of that changes gently, feasilble to control the combustion intensity in the fluidizing zone
文摘:垃圾焚燒系統中,內旋流流化床存在不同布風速度的移動區、流動區和換熱區,處于換熱區的埋管的對流換熱系數受附近流動區氣流參數的影響,其變化趨勢及數值大小與普通鼓泡型流化床之間有明顯不同:最大的對流換熱系數明顯高於鼓泡床;換熱區尚未流化時,對流換熱系數已經大幅提高;整條換熱曲線的變化比較平緩,易於流化床濃相床內換熱。Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed
論文首先分析了風機運行特性及其最佳風能利用原理,通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性,並給出了模擬系統的硬體結構;然後為了實現交流勵磁發電機有功、無功功率獨立調節機理,分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略;針對雙饋發電機轉子能量雙向流動的要求,提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器;最後為實現從理論到實踐的全面研究,研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統,進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗;所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。When the punched baffle is proper in length, the small holes are in staggered arrangement and the punched ratio gradually increases from the central axis to the boundary along the baffle length, the performance of flow distribution in the plate - fin heat exchanger is effectively improved by the optimum design of header configuration
從實驗對比分析中得出,當擋板小孔呈錯排分佈、開孔率沿擋板的中軸線向兩側逐漸增加、且總開孔率達到50 %左右的時候,在相同的入口條件下,不均勻系數由原始封頭的1 . 210降至0 . 209 ,最大流速與最小流速之比由23 . 163降至1 . 756 。Mainly for the engraving of anti - counterfeiting signs for the packages of tobacco alcohol sugar tea cosmetics and various other high - quality products. the machine can work quickly and in an allembly line at a low cost. the highest speed of engraving is 300mm s. and the marimum moving speed is 5 - 300cm min adjutable. the differentiation rate is 0. 0125mm and is under the control of high - speed one - chip cpu
本機噴碼速度快,可上流水線生產,價位低,品質高,最大雕刻速度300 s ,最大移動速度5 - 300cm mm可調,解析度為0 . 0125mm ,高速單片機控制。The black thick lines with wind barbs indicate the location of jet streams and their maximum speeds, while the dash lines outline possible cat areas
圖中有風羽的黑色粗線顯示高空急流的位置及最大風速,而虛線則描繪出有可能出現晴空湍流的區域。Based on the comprehensive analysis of the road traffic flow ' s characteristics due to the bus stop without bus bay, the multivariate linear models of the speed and the headway are formed with the variables of the stop frequency, the stop time, the overall length of the stop and its reserve time of the bus and the vehicle flow applying the software of excel, and then the strict mathematical checks are made
文章首先比較全面地分析非港灣式公交停車影響下道路交通流特徵,然後藉助于excel軟體,構建關于公交停車頻率、公交停車時間、最大公交停車長度及其存在時間、道路流量的車速和車頭時距多元線性模型,並進行了嚴格的數學檢驗。Scan speed ’ s affection for cable corrosion speed is studied, it is founded that the rapider the scanning rate, the bigger the measured corrosion current density, that is the quicker the corrosion rate, 8mv / s is the best scan speed. 2
研究了掃描速度對鋼絞線腐蝕速度的影響;提出了掃描速度越大,鋼絞線腐蝕電流密度也越大,腐蝕速度越快,其中8mv / s為最佳掃描速度。Within city and its related region, systematically, rationally and scientific future planning for rail transit routes and its network, and its compatibility with land use plan for specific geographical form and mater plan of city, are common problems met by large cities planning for rail transit systems in china. proper selection of network scale and its rational form for improving accessibility is also included in these problems
如何在城市及其區域內系統、合理併科學地規劃遠期軌道交通線路和網路,使其適應具體的城市地理形態和城市總體規劃的土地利用格局,帶動城市的土地開發;如何選擇合適的路網規模和合理的路網形態,以提高交通的可達性,最大限度地吸引客流,成為我國選擇發展、規劃快速軌道交通的大城市所面臨的共同問題。According to the supply system composed by parallel connection water pump, many kinds of operation proposals in a single pump were put forward to provide the greatest possible flow on both sides of the demarcation point in the scope of the flux changes ; identified the system of pumps, electromotor, speed governor imitate method of characteristics curve of the power device and its rotating speed, efficiency, energy consumption calculation under different condition ; the analytical methods used for the operational plan for comprehensive evaluation of the economic and safety and optimal results
摘要針對由並聯水泵組成的供水系統,提出了在以單泵可能提供最大流量為分界點的兩側流量變化范圍內具有多種運行方案;確定了在不同工況下,該系統中水泵、電機、調速器特性曲線的擬合方法及其各動力裝置中轉速、效率、能耗的計算式;採用解析的方法對各種運行方案進行了經濟性和安全性綜合評價,並給出最優結果。分享友人