短周期變量 的英文怎麼說

中文拼音 [duǎnzhōuqībiànliáng]
短周期變量 英文
short-periodvariable
  • 短 : Ⅰ形容詞（空間、時間兩端之間的距離小） short; brief Ⅱ動詞（缺少; 欠） lack; owe Ⅲ名詞1 （缺點） we...
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  1. For example, if there is a planet orbiting around the neutron star, it will wobble a little and the pulses will come a little early or late. we can then deduce the mass and the radius of the orbit of the planet from the arrival time of the pulses. this is how the first extrasolar planet is discovered

    例如假若有一顆行星圍繞一顆中子星運行，它會令中子星出現搖動，引致脈沖的間隔變長或短，由此我們根據脈沖周期的變化，可推斷出行星的質量和軌道半徑，這亦是天文學家找出第一顆地外行星時所用的方法。
  2. This paper develops a deterministic inventory model for perishable items with a mixture of back orders and lost sales under inflation and time discounting, where the backlogged demand rate is dependent on the negative inventory level during the stock out period. the main differences from the existing related models are that the present model takes the maximum present value of profit in a repeatable order cycle as the objective function and proposes a more practical constraint of maximum customer - waiting time to ensure a proper customer service level. then the existence and the uniqueness of the solution to relevant systems are examined and a solution algorithm is shown to find the optimal replenishment policy. at last, some numerical examples are presented to illustrate the applicatioh of the model

    本文建立了一種考慮通貨膨脹與時間價值的變質性物品的庫存模型，在模型中允許短缺發生且拖后的需求速率與在缺貨期間已經發生的缺貨量有關.和已有相關模型的主要區別在於本模型把一個可重復的訂貨周期內的最大平均利潤的凈現值作為目標函數，且增加了在缺貨期間最長顧客等待時間的限制，以確保庫存系統擁有較高的服務水平.然後討論了模型最優解的存在性與唯一性，並提供了尋求模型整體最優解的演算法.最後用實例說明了此模型在實際中的應用
  3. The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly

    但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
  4. Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -

    快速成型技術改變了傳統的產品開發模式，可以為設計者提供產品樣件，縮短設計周期，加快新產品的開發進度，為決策者提供直觀性；快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣，包括樹脂模、層壓模、熔模和消失模等，還可採用直接制殼鑄造法直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模，甚至直接製造小批量鑄件，介紹了熔積成型技術在石膏型精密鑄造上的應用和基於選擇性激光燒結技術的快速鑄造技術，快速成型技術與鑄造工藝的有機結合，開創了快速製造金屬零件的新階段，對用高新技術改造傳統的鑄造工業，使其面貌煥然一新，增強鑄造行業的競爭能力；快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑，討論了利用快速成型技術製造模具的一般工藝方法，探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題，以及快速成型技術與精密鑄造技術相結合的模具製造工藝，基於快速成型製造的快速模具技術，集成了快速成型製造高新技術和傳統技術，發揮各自優勢，已成為產品快速更新換代和新產品開發及中、小批量生產的有效手段之一。
  5. We calculate a model with angular momentum loss caused by gravitational radiation, and find that the binary undergo cyclic evolution as well. however, the period of the cycle becomes shorter, and the ratio of the time spent in the semi - detached phase to the time spent in the contact phase in a cycle becomes smaller

    我們計算了由引力波輻射引起雙星系統的角動量損失的演化模型，發現雙星系統還是經歷循環演化，不過循環的周期變短，且雙星系統的每一個循環處在半接狀態的時間與處在相接狀態的時間之比變小。
  6. The lab study and field application indicate that this system has the feature of powerful repress, highly blind in, better rheology, better quality of mud cake and low filtration, resolved the complication of fall down and shrinking drilling in salt of gypsum layers, decreased the drilling circle, cut down the drilling cost and raised the colligation economic effect

    室內研究和現場應用表明，該體系具有強抑制、強封堵、流變性好、泥餅質量好、濾失量小的特點，解決了膏鹽層、鹽巖層的縮徑、垮塌，縮短了鉆井周期，降低了鉆井成本，提高了綜合經濟效益。
  7. Cdc5 gene is necessary for the g2 / m transition. cells with mutations in cdc5 can not finish the g2 / m transition, then die ; overexpression of cdc5 can shorten g2, the cell cycle as well. it also makes cells lessening

    1976年， nurse等在篩選裂殖酵母（ s . pombe ）細胞周期進程突變體的過程中得到了基因cdc5 ，后來經實驗證明cdc5對細胞周期g2期到m期的轉換是必需的： cdc5突變后造成細胞無法完成g2 m轉換而死亡；過量表達cdc5會縮短g2期，同時縮短整個細胞周期，並導致細胞變小。
  8. The paper adopted the common breeding way by series of mutagen treating to the yeast ' s cell and spheroplast. finally, the excellent mutant 75l 3555 was obtained. its nature of the production was determined and it can product ethanol on the condition of 40 and have high fermentative speed and stable production. on the other hand, the test was made that the best fermentative condition was found. in the malt juice, adding 0. 02 % k + or 0. 03 % a13 + can increase the production strikingly and adding some degree concentration trahalose can increase the production too and cut short the time of taming. in the study of using molasses producting ethanol, we can obtain high productivity contained the following composition : nitrogen source 1. 5 % maize and 0. 075 % ( nh4 ) 2so4

    本實驗以常規的育種方法，通過對酵母細胞懸液和原生質體進行一系列誘變，經過大量的篩選，最終選育出一株耐高溫高產菌株75l _ （ 3566 ） ，並對其進行了生產性能的測定。 75l _ （ 3566 ）在40條件下，濃度為20 bx的麥芽汁發酵液中，產酒率高達11 . 5 ，而且發酵速度快，發酵周期可縮短12h ，其生產性能穩定，可以適應大部分以澱粉質為原料的生產廠家的需要。同時本實驗對75l _ （ 3566 ）進行了發酵條件優化的初步研究。
  9. The uncertainty of these variables causes the variability of factory ’ s capacity planning, especially for long range capacity planning in semiconductor manufacturing because of its shortening product life cycle, high equipment cost, etc. the uncertainty issue of long range capacity planning process in semiconductor manufacturing was studied in this thesis

    這些變量在實際中的不確定性，導致了工廠生產能力計劃的變動性。由於半導體產品生命周期日益縮短，生產設備造價昂貴等原因，工廠長期生產能力需求的不確定性在半導體製造業表現得更為突出。
  10. The obtained results indicate that compared with the clay layer, the liquefied sand layer takes a decreasing effects on the short period component of the surface ground motion and the effects increase with increasing of the thickness 、 depth and width of the liquefied sand layer ; the liquefied sand layer takes a increasing effects on the long period component of the surface ground motion but the effect is not obviously ; to the input earthquake wave, the demarcation point of strengthens and weaken is about 0. 6s

    主要結論為:和同樣的粘土層相比，液化層的存在對地表上地震動的短周期分量主要起減弱作用，且減震效果隨著液化層埋深、厚度的增加而變強;對長周期分量主要起加強作用，但是效果不太明顯;對所輸入的地震波來說加強減弱的分界點所對應周期為0 . 6s左右。
  11. A source routing framework is proposed to route traffic flows proactively over multiple paths, which tries to optimize routes for long - lived flows based on dispersity routing ; based on mathematical analysis, our approach disperses incoming traffic flows onto multiple paths according to path qualities. long - lived flows are detected and migrated to the shortest path if their qos could be guaranteed there. suggesting non - disjoint path set, four types of dispersion policies are analyzed, and flow classification policy which relates flow trigger with link state update period is investigated

    提出一種以業務量內在特性為基礎的前攝式多路路由演算法：以對業務量的內在特性分析為基礎，該方法在多路發送數據流的同時檢測非最短路徑上的長流，而後在保證服務質量的前提下將長流遷移到最短路徑上傳輸；前攝式多路路由使用以路徑質量評價為基礎的業務流分佈方法有效提高網路吞吐量，通過周期性的路徑質量評價適應時變網路狀況；模擬實驗表明，該方法可以有效提高「盡力而為」方式下的網路服務質量和資源利用率；浙江大學博士學位論文3
  12. The technology of micro - electronics and calculation method was fully made in the system. how to improve the accuracy of standard orifice measurement is also discussed from the following aspects : the means of measurement and transmitter, online correction of measurement parameter and abnormal condition. all those means are used to overcome its shortcomings of less scale of measurement range, short period of checkout, more tache of maintenance and low accuracy of measure

    該系統充分利用微電子技術和計算技術以及通過實際現場總結的經驗，主要從測量與變送環節採取的措施、相關參數的在線實時補償演算法、非正常情況的在線補償三個方面對如何提高量精度加以論述，盡可能地彌補孔板差壓式流量計量程比較小、檢定周期短、維護環節多、準確度低的不足。
  13. Simultaneously, along with market acute competition, the fashion period of textile industry is getting shorter and shorter, it is a remarkable trend for modern textile manufactures to pursue zero stock, short period, small batch, high frequency and quickly delivering

    同時，紡織行業時尚流行的周期變得越來越短，市場不確定性增加，個性化、短周期、小批量、高頻率、快速交貨和追求零庫存成了現代紡織製造業的顯著趨勢。
  14. Modeling of mechanics multibody system is the primary sustaning technology of virtual prototype. it is the base of virtual prototype to realize simulation. design and control. the technology of virtual prototype has changed the tradisional design based on physical prototype, and has greatly reduced the expensive and time wasting manufactrue and exprements of physical proto type. it allows the users analyse and compare rared of designe plans fastly. it can realize optimized design, and can find the potential questions in the early design. it is the effective method to improve qualities of products, to shorten the developing cycle, and to reduce the developing cost

    機械多體系統動力學建模是虛擬樣機的主要支持技術之一，它是虛擬樣機實現模擬、設計製造和控制運行的基礎。虛擬樣機技術改變了傳統以物理樣機為基礎的設計，大大減少了昂貴而費時的物理樣機製造及試驗過程，使用戶可以直接在計算機上快速分析比較多種設計方案，進行優化設計，在設計的早期及時發現潛在的問題，是提高產品質量、縮短產品開發周期，降低產品開發成本的有效途徑。
  15. Using a complex model encompassing menstrual - cycle variables, smoking status, hormone levels, and ethnicity, these researchers estimated length of time to fmp, but they did not apply their model prospectively

    應用囊括月經周期變量、吸煙與否、激素水平和種族的復雜模型，研究人員估計了到達fmp的時間長短，但這並不適用於前瞻性模型。
  16. By making use of the simulation results, a principle about how to confirm the refrigeration charge and capillary tube length for the 5hp inverter controlled air - conditioner has been put forward. the results are of direct interests to reduce time - period of product developments

    所得結論對5hp變頻空調器製冷劑充灌量和毛細管長度的選擇具有一定的指導意義，對縮短新產品研製周期亦具有一定的參考價值。
  17. The traditional synthetic method of 2, 5 - dithiol - benzene - 1, 4 - diamine dihydrochloride ( dtbda ) is characterized by a louger time of reaction, heigher consumption on chemicals and lower yield. but by changing the solvent for synthesis, the reaction time is shortened and the consumption on chemicals is lowered

    通過改變合成的溶劑對已報道的合成二巰基苯二胺二鹽酸鹽方法進行改進，克服了需經很長周期、耗用大量的反應試劑和重結晶溶劑、產率較低的缺點.改進的方法縮短了產物制備時間，減少了原料的成本消耗，效果明顯
  18. It shows that there is cointegration relationship between the economic growth rate and the m1 increase rate. then by using the cointegration, granger causality method, impulse - response analysis, vector error correction model with markov regime switching to test the equilibrium relationship in long run and the short fluctuation pattern in short run between the real output and m1 increase rate, it shows that monetary supply can affect the macroeconomic effectively, and the interest rate and stock market value can not affect the macroeconomic effectively

    本文研究了經濟增長與貨幣供給量、利率、股票市場等貨幣中介指標的關系，得出經濟增長率與m1增長率具有協整關系的結論，在此基礎上使用協整分析、 granger因果關系檢驗、脈沖響應分析、具有markov區制轉移的向量誤差修正模型等最新的經濟計量方法，描述和檢驗了中國經濟周期波動過程中實際產出與貨幣供應量變動的長期均衡關系和短期波動模式。
  19. Bridge with high pier and long span uses high - strength materials and thin - wall structure and often adopts segmental construction method, the effect of concrete elastic modulus and creep and shrinkage are significant, so aging stability analysis research has important significance

    又由於此類橋梁大都採用節段施工方法，施工周期短，混凝土的彈性模量變化、徐變收縮等時效因素的影響顯著，開展大跨徑混凝土橋梁施工全過程穩定性研究具有重要意義。
  20. In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system

    在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。
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