decreasing coefficient 中文意思是什麼

decreasing coefficient 解釋
降低系數
  • decreasing : 遞減
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. The results showed that : ( 1 ) the models used by author and the analysis are useful and can be practiced. ( 2 ) after using isolation technology, the structure ' s period, earthquake response, base shear force and acceleration are all decreased markedly and the horizontal displacement focuses on isolation layer. ( 3 ) under frequent earthquake action, the shear force ratio between layers is close to 0. 35 ; in according with the provision in aseismic design code that the horizontal seismic reduction coefficient can choose 0. 53 and the upper building can be designed by decreasing one degree

    計算模型分別採用三維空間模型及規范中建議的彈簧、質量模型，隔震層採用疊層橡膠隔震支座，運用大型結構有限元計算程序sap2000以及自主開發的nba結構程序計算隔震結構在多維地震動輸入下的動力非線性時程反應，同時研究了隔震結構在溫度變化的作用下，結構各桿件的內力變化，通過對變電建築物在傳統抗震作用下及隔震作用下的分析比較，得出一些有益的結論。
  2. After testing thermal conductivity ( k ), electrical conductivity ( ) and see - beck coefficient ( a ), the results demonstrate that for cosb3 nano - materials, with decreasing in grains size lattice thermal conductivity falls, electrical conductivity decreases and seebeck coefficient increases. thermoelectric performance figure ( zt ) cosbs nano - compound with grains size of 200nm has reached 0. 43

    通過對一系列不同晶粒尺寸cosb _ 3化合物的熱導率、電導率和seebeck系數的測定，討論了晶粒尺寸大小對結構納米化對熱導率、電導率和seebeck系數的影響，結果表明：隨著cosb _ 3化合物晶粒尺寸的減小，晶格熱導率_ l顯著降低，從而導致cosb _ 3化合物的熱導率的降低；電導率也有一定的降低；以及seebeck系數顯著增加。
  3. And got the results consistent with the experiments. it is argued that the successive deepening of pseudogap with decreasing temperature leads to that hall coefficient attains to a positive maximum at the temperature a little higher than

    正常態霍爾系數的溫度行為，得到與實驗相符的結果。指出贗隙隨溫度降低的不斷加深導致了霍爾系數在比
  4. Combining achievements in past scientific research, this thesis summarizes some problems in the process of decreasing water, the problems contains : important parameters such as percolation coefficient, interfering radius etc ; designers get parameters from their experience and make their choice of limited prospecting materials too simply, because of the limits, designer ca n ' t make quantitative analysis on groundwater ; differences on breakwater effect of setting water - tight screen is still existed, although research evolvement in this field is done ; they ca n ' t grasp the hydrogeology parameters accurately in that it influences rightness of designing in deep excavation water - decreasing

    本文結合以往的研究成果，總結了降水過程中存在的一些問題，主要包括：重要設計參數，如地層滲透性、基坑降水影響半徑等，設計中僅從個人經驗出發取值，對有限的勘探資料進行取捨和過分地簡化。這些局限使設計者不能對地下水進行科學的定量分析，盲目性較大；深基坑降低承壓水引起的周邊地面沉降的研究雖已取得很大的進展，但是一些主要問題仍未解決，對防滲帷幕的實際擋水效果存在不同看法；對於弱透水層的水文地質參數一直難以準確把握，影響了深基坑降水設計的正確性。
  5. The optimum inclination angle is between 15 ~ 20, the length of thermosyphon will not change the phase - change heat transfer coefficient of the evaporation section and the condensation, which will enlarge heat transfer area of thermosyphon and increase the heat exchange capacity. the head - on speed of wind only stranger the heat transfer of the evaporation section and the condensation section. the experiment shows that the mathematic model closely fits to the thermosyphon, moreover, the one key to resolve the thermosyphon effect lies in decreasing the thermoresistance of evaporating section and condensation section. this study can provide directions and experience in the future research

    傾斜角越大，熱虹吸管總熱阻越大，最佳傾角在15 20之間;充液率過多或過少都會對傳熱性能產生不利影響，對于本實驗採用的1 . 75m 、 2m 、 2 . 5m 、 3m熱虹吸管，最佳充液率在20 % 35 %之間;管長對傳熱也有影響，管長不改變熱虹吸管蒸發段和冷凝段的換熱系數，只增加了熱虹吸管的換熱面積，增大換熱量;迎面風速的大小，起到強化熱虹吸管蒸發段和冷凝段換熱的目的。
  6. The results showed that the transpiration rate 、 leaf rwc 、 water potential, water - consumption and water use coefficient were decreased with soil water decreasing

    結果表明，蒸騰速率、葉水勢、葉片相對含水率、耗水量和耗水系數均隨十壤水分的減少而呈降低趨勢。
  7. Through the bonding tests and the theory analysis between the advanced composite glass sheets and the concrete under the general load - carrying condition, the iterative load - carrying condition, the freeze - thaw action, and the defective bonding, the calculative model has been established, and the numerical value of fibre sheet strain under different load - carrying has been confirmed. the bond strength calculative expressions for the concrete bonded with glass fibre sheet under the pull - shear and the bend load - carrying conditions have been established. the author put forward the decreasing coefficient and the calculative expressions for the influence of reinforce effect by the non - effective area and the calculative expressions for the influence of the freeze - thaw action on the carrying capacity of the concrete beams

    本文採用美國泰扶高強復合玻璃纖維布以及與之性能相當、由南京玻璃纖維研究院自行研製開發的egfw430型玻璃纖維布兩種材料，通過在靜載、重復荷載、凍融及有缺陷粘結條件下的高強玻璃纖維布與混凝土粘結性能的試驗研究與理論分析，建立了玻璃纖維布-混凝土的粘結計算模型，明確了不同受力狀態下纖維布應變的設計取值，提出了玻璃纖維布-混凝土抗剪粘結強度的計算公式;確定了考慮非有效粘貼面積對加固效果影響的折減系數;給出了凍融循環次數引起承載力下降的插值計算方法;並驗證了重復荷載作用下玻璃纖維布與混凝土良好的粘結性能。
  8. The effect of various gain coefficient on soliton - effect picosecond pulse compression in fibers with slowly decreasing dispersion

    色散緩變光纖中增益系數的取值對皮秒脈沖孤子效應壓縮的影響
  9. Abstract : in the light of the problems of high power consumption and low working efficiency in a beam pumping unit, a new method for power saving of the unit is proposed, that is, adopting an optimum structure of the unit and decreasing the periodic load coefficient of the pumping unit by changing the performance characteristics of the electric motor and by increasing the rotary inertia of the unit

    文摘:針對游梁式抽油機能耗大，工作效率低的問題，提出遊梁式抽油機節能的新方法，即在採用優化抽油機結構的基礎上，通過改變電動機的工作特性和增加抽油機轉動慣量的辦法降低抽油機周期載荷系數。
  10. When the stress acted on concrete specimens exceed 60 % of ultimate compressive strength, the coefficient ( k ) will increase obviously but the largest change is still within the order of 10 - 9 cm / s. the time - dependant characteristic can be expressed by the function k = ( a + ct ) / ( l + bt ). the coefficient k decreased significantly in the first 40 ~ 60 hours of the water permeability test, and the decreasing rate became slow as the time goes on

    混凝土的滲透穩定性則表現為滲透系數會隨滲透時間增加而減小，減小的趨勢是起初的40 60小時內下降最快，其後愈來愈平緩，其規律可用公式k = （ a + ct ） （ 1 + bt ）來表示。
  11. As for moving tc, its symmetry somely rusume after landfalling. the different distributing between expb2 and expb3 is much smaller than the other exps of the same group, so it is shown that if the roughness coefficient come to a certain number, the effect of roughness maybe not take the leading key in tc decreasing process any more

    對于移動熱帶氣旋登陸而言，登陸后對稱性有所恢復，當下墊面粗糙度達到一定值時，由於粗糙度引起的差異明顯減小，粗糙度在其減弱的過程中可能已不佔主導作用。
  12. ( 4 ) after the rationality of numerical simulation has been testified, going along a series of numerical simulation and performance research. firstly, the thermal superposition principle, based on adiabatic heat transfer coefficient and superposition kernel function, is put forward for the research of discrete heat sources ’ temperature field and thermal conjunction effects secondly, decreasing thermal spreading resistance is good for improving the heat transfer performance, and several methods are discussed

    第一、在熱疊加原則理論基礎上，利用數值模擬方法研究了固態組件的溫度場和多個分散熱源在熱擴展體上的熱耦合效應，而且證明了強迫對流情況下熱疊加原理形成的溫度場和系統模擬時的溫度場計算結果非常吻合;第二、針對固態組件里集中熱源的特點，對擴展熱阻進行了研究，從理論上探討了減小擴展熱阻改善散熱性能的方法。
  13. It is shown that the optimal cost function will be decreasing if the terminal state of the controller lies in a certain set and the upper bound of the decaying coefficient satisfies some conditions

    指出當控制器的終端狀態處于某集合內且集結衰減系數的上界滿足一定條件時，其最優目標函數遞減。
  14. In 1954, the engel coefficient of rural residents was as high as 69 percent. by 1998, the consumption structure of rural residents had been greatly improved, with the engel coefficient decreasing to 53. 4 percent ; their cultural, recreational and service expenditures had risen to 25. 4 percent ; and the proportions of accommodation and clothing expenditures were 15. 1 percent and 6. 2 percent, respectively

    1954年，農村居民的恩格爾系數高達69 % ，到1998年，農村居民的消費結構已大大改善，恩格爾系數已降至53 . 3 % ，文化娛樂、服務性支出及其他支出在生活消費支出中所佔的比重已提高為25 . 4 % ，居住和穿的比重分別為15 . 1 %和6 . 2 % 。
  15. The results showed that the displacement of the surrounding rock of cavern evidently decreases with the increase of in - situ stress side pressure coefficient, as well as the decreasing rate of surrounding rock displacement of cavern with increasing at the condition of < 1 are significant larger than that of > 1 ; when < 1, the displacements of measured points in cavern increase then decrease with the increasing incident angle of shear wave, while, when > 1, the displacements decrease then increase with the increasing incident angle of shear wave, and the influence of incident angle on the displacements of measured points tends to decrease with the increasing in - situ stress side pressure coefficient

    分析結果表明，地震荷載作用下，硐室位移隨地應力側壓系數的增加明顯減小，地應力側壓系數< 1時的硐室位移量值隨側壓系數的變化幅度明顯大於地應力側壓系數> 1時的情況；當側壓系數< 1 ，隨剪切波入射角的變化，硐室測量點位移響應先增加后減小；而當側壓系數> 1 ，隨剪切波入射角的增加，硐室測點位移先減小后增加，同時隨地應力側壓系數的增加有減小的趨勢。
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