粘附系數 的英文怎麼說
中文拼音 [niánbùxìshǔ]
粘附系數
英文
adhesion coefficient-
In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data
本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好The particles aggregation was simulated using particle - cluster and cluster - cluster aggregation model. several type of floes was reached and its morphological characteristics was analyzed the fractal dimension, density and porosity of floes was studied by changing sticking probabilities, sticking position, particle number, particle concentration, difrusion coefficient and motion trajectory. the parameters by which special floes growth were determined. in the study of morphology, floes of yellow river ' s loess particles was observed by tv - microscope. its morphological characteristics were obtained by image analysis. the effect of fractal dimensions by stirring time strring speed, macromolecule flocculant dosage, flocculant concentration and particle concentration was studie. its rule of change was obtained. on the basis of other studies, the flocculation kinetics and floes structure was studied
本文應用計算機模擬技術，在二維空間內採用單體凝聚和集團? ?集團凝聚兩種模型對顆粒凝聚過程進行了模擬，得到了多種形態的絮體，並對絮體進行了形態分析，通過改變粘附概率、粘附位置、顆粒數量、顆粒濃度、擴散系數和運動路徑等模擬參數，我們考察了絮體分形維數、密度和孔隙率隨模擬條件變化的影響規律，得到了形成特定形態絮體的控制參數。Pda laser flow velocity testing technique was used to measure the flow velocity of solid particles in the solid - liquid - gas three - phase system in a flotation cell and obtained the velocity distribution of solid particles so as to provide reliable data for the study on adsorption and deadsoption mechanism of particles onto and off from bubbles
採用pda激光流速測試技術，在固-液-氣三相體系中對浮選槽中固體顆粒進行了流速測定，獲得了固體顆粒的速度分佈，為礦粒與氣泡粘附過程和脫附過程機理的研究提供可靠數據。Soft pu rollers were used for printing and glazing industry. hard pu rollers were used for iron and steel industry. other polyurethane elastomer such as pu slice, pu bar, pu piece were widely used in all kinds of machine for reduce attrition, acid - resistant, water resistance, insulation with higher toughness, tear strength and low hardness
4 .耐濕性能好，可在水為介質的條件下工作，且在水油等介質的情況下，鑫發聚氨酯與物料的摩擦系數降低，更利於透篩，提高篩分效率，並可避免潮濕微粒的粘附，同時因磨擦系數降低，磨損減少，使用壽命提高。The work of cohesion increased with the enhancement of wettability, but the bending strength of the welding specimens did not. when wc or mo was added the mode was adhesive rapture ( ii ) because of the difference between the thermal expansion coefficient of wc, mo and ni. the bending strength was high when iv rapture was occurred
研究發現粘附功隨潤濕性的改善而提高，但是焊接試樣的抗彎強度並沒有呈現明顯的這種趨勢；由於wc和mo與金屬ni熱膨脹系數相差較大，焊接試樣斷裂方式為內聚型斷裂（型斷裂） ，抗彎強度較低；以型方式斷裂的體系具有較高的抗彎強度。The improved neural network is applied in study of the relationship between reaction parameters of electroless plating nickel in the process of the metallization of aluminum nitride and the adhesion strength between the metal layer and the substrate
為得到較大的氮化鋁金屬化層粘附力，運用基於穩健估計的神經網路研究氮化鋁金屬化中化學鍍鎳的反應參數與金屬層粘附力的關系。We have deduced mathematical equations modeling its vibration and studied the stability of the semigroup associated with the equation system. we obtain the exponential stability under certain hypotheses of smoothness and structural condition of the coefficients of the system, applying the relaxation function decays exponentially. this result does not need the continuity of the damping coefficient at the interface
對于具有局部粘彈性阻尼的高維波方程的能量的指數衰減問題， liuetal . 51 }和riveraetal . 63分別對k一v型和boltzmann型的情形進行了研究，在假設了阻尼系數是光滑的並且附加了一些結構性條件的情形下，得到了指數穩定性的結果。分享友人