濃集因數 的英文怎麼說
中文拼音 [nóngjíyīnshǔ]
濃集因數
英文
concentration factor-
In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor
針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。By investigating the specialty of functions in the expression, the following conclusion was drawn : particle concentration was the dominant factor that enforced ablation, and angle contributed to ablation via cutting the char layer
通過分析關聯式中各項函數特性，得到粒子聚集濃度是影響燒蝕量的主要因素，而角度對于燒蝕量的貢獻主要體現在對絕熱層炭層的剪切破壞上的結論。Both of the increase in water content w ? and reactant concentration made the effects stronger. two microemulsions containing reactants being mixed, hap particles began to form. hap particles were characterized by dynamic light scattering, auger energy spectrum, xrd, ir spectrum and tem
反應試劑濃度的提高和體系水含量w值的提高影響了微乳液水核的數量、水核中的離子佔有數以及aot分子的聚集數，因此對hap顆粒的形成產生影響。( 3 ) a testing system consisting of pressure transducers, data - collecting card, computer and electrical - ignition instrument was designed and a flammable gas cloud deflagration experimental system was developed. based on the orthodoxy experiments, the experiments was conducted on c2h2 - air flame acceleration resulted from hemispherical porous barriers in hemispherical gas cloud. the relations between the explosion overpressure and its influence factors were summarized
（ 3 ）本文設計了由壓力變送器、數據採集卡、計算機和電火花裝置組成的測試系統，建立了可燃氣雲爆燃實驗系統；以化學計量濃度的乙炔-空氣混合物為實驗介質，在正交實驗的基礎上，對半球形氣雲內部與氣雲同心的半球形多孔障礙物對火焰的加速作用進行實驗研究，並歸納出爆炸超壓與其影響因素之間的關系；同時還考察了障礙物數量對爆炸超壓的影響。In order to study the regeneration mechanism of dpf in detail, we still need a mathematical model of the channel unit, which present temperature field and the soot reaction rate of the channel. finally, it points out the influences of various factors to the regeneration process by computing the numerical solution of model under different boundary conditions and geometry parameters, such as the initial temperature, the gas flow rate, the oxygen concentration, the sediment quantity and the wall thickness of the filters, and so on. in this way, the paper provides theoretical guidance for optimization design of the dpf
首先研究了干凈壁流式過濾體的加熱特性，然後在加熱和燃燒理論的基礎上建立了微粒捕集器再生過程的數學模型，並對模型進行了數值計算，得到了捕集器內部的三維溫度場分佈以及溫度梯度分佈，結果與實驗值吻合較好，驗證了模型的正確性;為了詳細的研究微粒捕集器的再生機理，建立了孔道單元數學模型，得到了孔道內的溫度場分佈和微粒反應速率分佈;最後，通過求解模型在不同邊界條件和不同幾何參數下的數值解，分析了各種因素對再生過程的影響，如過濾體初始溫度、過濾體內氣流的流動速率、氧濃度、微粒沉積量以及過濾體壁面厚度，為微粒捕集器的優化設計提供理論指導。分享友人