比例流量實驗 的英文怎麼說
中文拼音 [bǐlìliúliángshíyàn]
比例流量實驗
英文
scaled flow test- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
- 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...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 實 : Ⅰ形容詞1 (內部完全填滿 沒有空隙) solid 2 (真實; 實在) true; real; honest Ⅱ名詞1 (實際; 事實...
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 比例 : 1. (長度上縮小和放大的倍數) scale; scaling 2. (比率) proportion; ratio; proportionality
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
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The activatory coal gangue powder ( acgp ), ground cement clinker and natural gypsum are mixed by different ratios to prepare blended cement specimens, and its mortar compressive strength performance, water usage for standard consistency, and flowability of mortar are investigated
摘要將經燃燒等過程進行活化處理的煤矸石細粉與磨至一定比表面積的水泥熟料及天然生石膏混合均勻,製成了活化謀矸石粉摻量比例不同的多組混合水泥,並對其膠砂強度性能、標準稠度用水量、膠砂流動度進行了實驗檢測。Then pid flow rate control algorithm is introduced. all experiments made in this chapter are about measuring the valve parameters according to spool positions, single actuator flow rate control by the calculated flow rate feedback control method, free flow rate dividing control under the sufficient pump discharge flow rate situation, proportion flow rate dividing and flow rate dividing based on meter - in flow rate feedback control method under insufficient pump discharge flow rate situation. the results of all experiments proved that the method presented in this thesis is an effective way to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads
第四章介紹了多執行器復合控制實驗系統和實驗方法;介紹了實驗採用的流量控制的pid演算法;並測定了執行器控制閥和閥芯位移相關的系數;做了單個執行器計算流量反饋流量控制、流量足夠情況下多執行器流量任意分配、流量不足情況下多執行器按比例調節流量分配和多執行器進油側流量反饋分流控制實驗;通過實驗說明了論文提出的分流控制方法能實現大小慣性負載復合操作時的合理分流。The improvement system is made up of the pressure sensor, flow sensor, displacement sensor, electro - hydraulic proportional flow control valve, power amplifier, data gathering board and computer. the platform can carry out testing the hydraulic parameters, processing the tested data, saving the processed data and drawing, adjusting the pressure automatically
改造后的測控系統主要由壓力傳感器、流量傳感器、位移傳感器、比例節流閥、功率放大器、數據採集卡和計算機組成。改造后的實驗臺具有自動採集實驗數據、自動處理實驗數據、自動保存實驗數據、自動調節液壓系統負載壓力等功能,大大提高了實驗臺的工作效率、測試精度和智能化水平。First, this paper looks for the national experiences that organizing city traffic in the rodeway system, in conditions of the mobile and no - mobile number being big. then analyzing the questions and reasons in middle - scale - city roadway system, on the base of studying characters of use - land and residents journey, transportation tools and relations of the transportation and economy development, put forward some proposes in roadway system on the base of middle - scale - city characters of basic construction and solving the new problems of city traffic. through analyzing the relations of middle - scale - city roadway system, city land - use and land - shape, put forward some development antidote. in the circumstance of road facilities being lack, improve the level of traffic management of city roadway system, improve traffic environment of city roadway system. put forward some revised proposes on road - net norm of middle - scale - city road system in our country ; consider the plan of isolating mobile form no - mobile in the organization of roadway system ; construct revaluating system of city roadway system. at last through studying a typical case of yuncheng, put forward some solutions and measures ; through using evaluating system, evaluate, contrasts and analyses the present conditions in city roadway system and planning program
本文首先尋求國外機動車和非機動車擁有量都較大的情況下,為組織好城市交通在道路系統方面所取得的可供我國借鑒的經驗,然後在對我國中等城市用地特徵、居民出行特徵、交通工具、交通與經濟發展的關系等進行分析的基礎上,剖析中等城市道路系統現狀存在的問題及其形成原因,以及對今後城市交通將要出現的新問題,提出以中等城市的交通結構特點為基礎的機、非分流道路系統的建議;通過分析中等城市道路系統與城市土地開發、城市用地形狀等之間的關系,並相應其提出發展的一般對策,在道路設施不足的情況下,加強城市道路交通系統的管理,提高城市道路交通環境,對我國中等城市道路系統在道路網指標上提出修正意見,對道路系統組織機、非分流進行思考;並建立了城市道路系統評價指標體系;最後以運城市做為實例分析,具體提出近期處理的對策與措施,並運用評價體系對城市道路系統現狀和規劃方案進行評價對比分析。The experiment acquired pressure distribution and circulating rate under three fluidizing velocity ( 3. 5m / s 、 4. 5m / s 、 5. 5m / s ) and different media load. an experimental equation was acquired between circulating rate and the distribution of the pressure. and the relation between the circulating rate and the opening rate of the valve connecting the returner and the ehe was carefully discussed as well as the relation between the pressure of the ehe and the flow rate of the fluidizing air
得到三種流化風速下( 3 . 5m / s 、 4 . 5m / s 、 5 . 5m / s )不同裝料量所對應的主床床體壓力分佈和物料循環量,得到循環量與壓力的分佈和流化風速的本實驗臺上的經驗公式,並通過測量返料器通向外置換熱器機械閥開度和返料量的關系,得到旋風分離器中下落物料進入換熱器和直接進入主床的比例關系,同時測得換熱器中壓力和送風量的關系。By carrying on experimental study to the ignition performance of the natural gas high speed burners under different conditions, the influence factors are probed such as the type of the gas source, the combustion air pressure, the gas pressure, the proportion of air and gas, gas flow and electrode to the ignition performance of natural gas high speed burner
摘要在不同的條件下對天然氣高速燒嘴的點火性能進行了實驗研究,探討了氣源種類、助燃空氣壓力、燃氣壓力、空氣與燃氣的比例、氣體流量、點火電極等因素對天然氣高速燒嘴的點火性能的影響。First, according to the demand of vimp for resin system, the reaction kinetics and rheological of up resin are investigated and the optimal content of low additive profile ( lpa ) is determined. then vimp based on a high - permeable medium and grooves are studied by visual experiments, through which the appropriate high - permeable mediums are selected and the parameters of width, depth and spacing for flow grooves and spacing for supply grooves are optimized. furthermore, various factors affecting the mold filling process are discussed and the whole vacuum infusion procedures are described taking examples of the manufacture of a model boat and a sandwich panel in one infusion
文中首先根據vimp對樹脂體系的要求,對vimp用不飽和聚酯樹脂體系的動力學和流變學性能進行了研究,確定了最佳低收縮添加劑的含量;對高滲透介質型和溝槽型vimp開展了實驗研究,通過可視化實驗優選出較好的高滲透介質,確定了引流槽的寬度、深度和槽間距及主槽的槽間距等工藝參數並進行了優化;對影響充模過程的各種因素進行了詳細的討論,並以模型船和夾芯面板的製作為實例描述了兩種vimp的成型過程;在實驗的基礎上,建立了二維滲漏模型,採用控制體有限元法對高滲透介質型vimp進行了成型過程的計算機模擬計算,通過充模時間和流動前峰的計算值與實驗結果的比較,驗證本文所採用的數學模型和數值方法的正確性,其結果對實際生產具有一定的理論指導意義。Then, this paper empirically tested the validation and predictive accuracy of different var risk management model in the domestic financial market. finally, with the analysis of modem financial risk management development trend and the current domestic financial risk management situation, this paper made a prospect for the application of this model in the construction of domestic financial risk management system. through the analysis, the main conclusions are as follows : ( l ) the traditional mean - variance model is the special example of the portfolio selection based on the var risk management model for the case that the returns of the portfolio are assumed to be normally distributed ; compared with the mean - variance model, the var risk management model is more comprehensive and accurate in the measurement of the portfolio risk, so based on the var model, the investors can allocate the asset more effectively. ( 2 ) the var risk management model can provide the timely and comprehensive risk information for the top risk manager, so it is very helpful to the improvement of total risk management efficiency. ( 3 ) based on the var model, the raroc performance valuation approach can reflect the real performance of the portfolio manager and provide the coherent standard for the allocation of risk limitation and the construction of the incentive compatibility constraint mechanism in the financial instiutions
通過研究分析,本文主要得出如下結論: ( 1 )傳統的markowitz均值? ?方差模型僅僅是在資產組合收益率正態分佈假設條件下基於var風險管理模型進行資產組合選擇的特例,與均值? ?方差模型中的方差風險度量方法相比, var風險管理模型能夠更全面、更貼切地衡量資產組合的風險,且基於此模型能夠更有效地進行資產配置決策; ( 2 ) var風險管理模型能夠滿足更高層次風險管理者對風險信息的需求,有助於整體風險管理效率的提高; ( 3 )基於var風險管理模型的raroc績效評價能夠反映資產組合管理人的真實業績,從而為金融機構風險限額的分配和激勵約束機制的制定提供統一的標準; ( 4 )國內證券市場資產組合收益率服從正態分佈的假設明顯不成立,實證檢驗表明基於資產組合收益率正態分佈假設條件下的方差? ?協方差模型對國內資產組合風險的預測存在較大的偏差,由於文中證明在收益率正態分佈假設條件下基於方差? ?協方差模型進行資產組合選擇的結果等價于markowitz的均值? ?方差模型,因此,均值? ?方差模型對國內資產組合風險的預測同樣會存在著較大的偏差,而半參數var風險管理模型則能夠取得較好的預測衡量效果; ( 5 ) var風險管理模型符合未來金融風險管理的發展趨勢,基於var風險管理模型建立內容提要風險限額內控體系、風險信息披露體系和業績評價體系,並進行金融監管,將有助於國內金融機構內部風險管理方法和外部監管技術跟上國際金融風險管理的發展潮流。This paper used bid bid - ask spread, rare of stock turn, martin index as liquidity index, adopted event method analyze the sample of a marketable companies on shenzhen stock exchange, analyzed stock response on bulletin day, 15 days before bulletin day, 15 days after bulletin day, and dividend day, 15 days before dividend day, 15 days after dividend day by test the liquidity indexes, also considered some factor ' s influence, such as about the scale of companies, quantity of stock, the trend of share index at bulletin day and dividend day
本文利用了買賣價差、換手率和馬丁指數等三個表徵流動性的定量指標,運用事件研究法對我國深圳交易所發行a股公司的股票股利發放影響情況進行實證分析。對公告日(當日停盤則為下一個交易日) 、除權日、及前後15個交易日流動性指標進行了配對樣本t檢驗;同時分析了公告日及除權日上市公司流通規模、公司股價、股票股利的數量、大盤走勢,送增比例等因素對流動性的影響。And then, a method of load - flow low - pressure measurement was proposed in the light of the hydraulic - resistance theory of servo valve. the validity of the method was proved by the experimental results. therefore, the measurement of the characteristic of load - flow and no - load flow can be realized by using this method
然後根據電液伺服閥的液橋理論提出了一種負載流量低壓測量方法,在所開發的測試系統上,利用電液比例閥模擬流量測量裝置對所提出的方法進行了試驗驗證,實現了利用低壓流量計和壓力傳感器進行電液伺服閥負載流量特性和空載流量特性的測量。First, the fluxes of electromagnetic valve are measured fully via test ; and consequently the detail implementation schemes for blending ratio of dme from ten percent to twenty percent are established
通過實驗,對系統中的電磁閥進行了全面的流量測定,確定出摻燒比在10 20之間的各種比例的具體實現方法。In order to solve the problems that large energy consumption, temperature variation, high, cost trouble maintenance in current electro - hydraulic servo control system for material testing machine, a new design scheme that electro - hydraulic proportional control system for material testing machine based on extension control strategy is proposed. the design scheme is successful by means of designing new main frame system, hydraulic cylinder system, digital electro - hydraulic micro - fluid proportional valve and electrical control system, and its results lay a foundation for material testing machine industries in our country
針對國內外材料試驗機主要採用電液伺服控制系統,存在能耗大、溫升、成本高、維護困難等問題,本課題提出了基於可拓控制策略的材料試驗機電比例負載適應控制系統這一新型研究方案,通過開發新型試驗機主機系統、液壓缸系統、數字式微小流量電液比例流量閥及電控系統,實現了材料試驗機電液比例負載適應控制,為我國材料試驗機自動控制系統的產業化打下了基礎。This paper adopted a suitable scale physical model, by measuring of air temperature in balconies, the author researched the impact on smoke by different kinds and forms of balconies and the air temperature distributing in balconies when fire emergency in high - rise buildings. the aim is to promote deeper research and analysis on the fire - prevent function of balconies in our country
本文採用適當比例的物理模型實驗研究方法,藉助對陽臺空間溫度的測量,研究了高層建築在火災條件下不同種類、不同形式的陽臺對煙氣沿外墻面流動影響因素及陽臺空間溫度分佈規律,旨在推動我國在建筑陽臺消防功能領域中進行更深一步的研究與分析。分享友人