粗度因數 的英文怎麼說
中文拼音 [cūdùyīnshǔ]
粗度因數
英文
coarseness factor-
So this article analyses deeply in the method of ensur ' my designing food rolume which is an important element to affect the " designimy height of bridge " it brings forward an " arverage optiminmy suiting line " method which is a bondage discommode series at the same time it puts forward a ensurmy principle for rough coefficient " and " fallimy flood proportion which are both suitable to heilongjiang province at last this article introduces the " three - days rainimy rolume " method
本文立足於黑龍江省各種河流的洪水特點，結合以往工程實際，對影響跨河橋梁設計高度的主要因素? ?設計洪水流量及其相應洪水位的確定方法加以詳細分析。提出有約束不連序系列的加權優化適線法及適合於黑龍江省的河流粗糙系數和洪水比降的確定原則，並介紹了三日降雨量法。Furthermore, the dq value ranges of profile multifarctal spectra in different landform types and in different directions of the same sections perform different properties and anisotrpies. it can be concluded that the landscape fractal properties depends closely on the int ensity, manner and inhomogenity of exogenic and inogenic processess, and with the properties, we can study quantatively the dynamic geomorphic process. by using the same methods just above, local fractal dimensions d, crossover length tc and the multifractal spectra dq - q of two large - scale landform profiles ( across and along tianshan mountain ranges respectively ) are calculated. the results show that in the studied scaling range the two profiles perform different scaling properties, and both of them can be divided to three evident different linear scaling subsections
不同類型地貌區二維地貌表面也表現出多度域分形特徵，而且隨著觀測尺度的增加，每個區間的分維值均表現為依次減小，表明外營力作用的影響逐漸被內營力作用所取代：不同類型地貌區在相應區間的分維值表現為高山區中低山區盆地區，體現了不同類型地貌表面粗糙性或復雜性的差異，因此分維值大小可作為地貌表面外營力侵蝕作用強度的重要指標：利用標度區的間斷點和各種地貌類型表面分維值或宏觀效應趨於一致，提出5 - 6km左右可作為地貌的宏觀臨界點，並且與利用地貌剖線研究所得到的5km這一數值是基本吻合的。Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切Therefore, in principle the scattering may be predicted from measurements of the surface profile. in this paper the author also discussed nonspecular scattering for mo / si multlayer coated primary and secondary mirrors of the measured schwarzschlid optics based on power spectral density of these mirrors measured by both optical profilometer ( wyko ) and atomic force microscopy ( afm )
因此，我們可以通過檢測多層膜反射鏡基底的粗糙度來表徵多層膜反射鏡非鏡面散射對光學系統性能的影響，亦即通過檢測多層膜反射鏡基底的粗糙度調整拋光工藝參數，獲得低散射的多層膜反射鏡。Les gens du commun ne trouvent pas de difference entre les hommes. the typical and unvarying hodge ceased to exist. he had been disintegrated into a number of varied fellow - creatures - beings of many minds, beings infinite in difference ; some happy, many serene, a few depressed, one here and there bright even to genius, some stupid, others wanton, others austere ; some mutely miltonic, some potentially cromwellian ; into men who had private views of each other, as he had of his friends ; who could applaud or condemn each other, amuse or sadden themselves by the contemplation of each other s foibles or vices ; men every one of whom walked in his own individual way the road to dusty death
他已經分化了，融進了大量的各色各樣的人中間去了成了一群思想豐富的人，一群差別無窮的人有些人快樂，多數人沉靜，還有幾個人心情憂郁，其間也有聰明程度達到天才的人，也有一些人愚笨，有些人粗俗，有些人質樸有些人是沉默無聲的彌爾頓式的人物，有些人則是鋒芒畢露的克倫威爾式的人物他們就像他認識自己的朋友一樣，相互之間都有著自己的看法他們也會相互贊揚，或者相互指責，或者因為想到各自的弱點或者缺點而感到好笑和難過他們都按照各自的方式在通往塵土的死亡道路上走著。From analysis of the test results the conclusions can be obtained as follow : the coefficient of friction under line contact is same as under point contact
研究表明：線接觸微動摩擦因數變化與點接觸形式相同；位移幅值在部分滑移區時，表面粗糙度對表面磨損有影響。The research is focused on the influence of the size of the coupling port, coupling line and the capacitive metal rods in cutoff waveguide on the gap impedance
研究結果表明：模雙間隙腔連接截止波導段的耦合口的尺寸主要影響輸出腔的外觀品質因數，而耦合接頭的粗細和電容性銷釘的大小和插人深度對截止波導濾波器的調諧具有重要影響。Abstract : the effect factors of grinding roller surface roughness areanalyzed and experimented. the law of effect factors such as roller rotary speed, grinding wheel granularity, grinding liquid and so on, about roller surface roughness is obtained. the mathematical model of roughness is established through regression
文摘:對影響磨削輥面粗糙度的因素進行了系統分析和實驗研究，得出了軋輥轉速、砂輪速度、砂輪粒度、磨削液等因素對磨削輥面粗糙度影響的一般規律，利用回歸分析的方法建立了粗糙度的數學模型。The research showed that pam could improve soil structure, and greatly increase the stabilization of soil aggregates, so soil crust development would be decreased. fifthly, soil grain that controls rainfall splash erosion was obtained, the influence of soil clay was very great during initial stages of rainfall. with rainfall going on, soil coarse sand and fine sand would control the splash erosion
五、控制土壤濺蝕的主要土壤粒級：在降雨初期土壤的的粘粒對濺蝕速率的影響較大，隨著降雨歷時的延長，土壤中的細砂和粗砂成為濺蝕速率影響較大的因子；六、對土壤濺蝕影響較大的土壤結構特徵因子：降雨5分鐘時，土壤的滲透系數對濺蝕速率的影響較大，隨著降雨的繼續進行，土壤的團聚度一直對土壤濺蝕速率影響較大。Unfortunately, in a websphere application server environment, these operating system protections are of limited value because they are based on process identity, which is a very coarse - grained concept when you consider application servers servicing requests from thousands of users at once
遺憾的是，在websphere application server環境中，這些操作系統保護的價值比較有限，因為它們是基於流程識別的，當考慮到應用服務器同時接受數千用戶發出的請求時，這是一個非常粗粒度的概念。On the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree
在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15Abstract : on the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree
文摘:在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15Thermodynamic couple numerical simulation of ring compression of pure aluminum and tube extrusion of superalloy gh4169 is done by adopting the constant friction model and the present friction model in the paper. numerical results are compared with experimental investigations to validate the correction and nicety of the present friction model of bulk metal forming processes. the accuracy of the finite element simulation of bulk forming processes can be improved by adopting the present friction model
採用二次開發msc . superform軟體，對純鋁圓環鐓粗和高溫合金gh4169管材擠壓過程進行了熱力耦合數值模擬，比較了採用本文提出的多因素摩擦模型和常摩擦模型對圓環鐓粗和管材擠壓過程變形行為的影響，通過與實驗結果的比較，驗證了本文的摩擦模型及其參數值的正確性，也說明了多因素摩擦模型提高了有限元模擬的精度。This technique is mainly involved two steps : 1 ) vegetation effects correction : we used ndvi ( normalized difference vegetation index ) derived from tm and avhrr measurements for spatial and temporal variations of vegetation covers at different scales
但由於電磁波與地表相互作用的復雜性，雷達後向散射系數除受地表介電常數（土壤水分）影響外，還受到地表粗糙度、土壤類型、植被覆蓋以及雷達入射角、頻率、極化等多種因素的影響。Applies taguchi method for optimizing the turning operations about the depth of cut, cutting speed and feed rate after obtaining every factor with different level ' s mean surface roughness and s / n
摘要應用田口法對切削速度、背吃刀量以及每齒進給量三個主要影響表面粗糙度的因素進行分析，求出各個因素不同水平的平均表面粗糙度和信噪比（ s / n ） ，得到最優切削參數。Firstly, influence factors of generalization of neural network are presented in this thesis, in order to improve neural network ’ s generalization ability and dynamic knowledge acquirement adaptive ability, a structure auto - adaptive neural network new model based on genetic algorithm is proposed to optimize structure parameter of nn including hidden layer nodes, training epochs, initial weights, and so on ; secondly, through establishing integrating neural network and introducing data fusion technique, the integrality and precision of acquired knowledge is greatly improved. then aiming at the incompleteness and uncertainty problem consisting in the process of knowledge acquirement, knowledge acquirement method based on rough sets is explored to fulfill the rule extraction for intelligent diagnosis expert system, by completing missing value data and eliminating unnecessary attributes, discretization of continuous attribute, reducing redundancy, extracting rules in this thesis. finally, rough sets theory and neural network are combined to form rnn ( rough neural network ) model for acquiring knowledge, in which rough sets theory is employed to carry out some preprocessing and neural network is acted as one role of dynamic knowledge acquirement, and rnn can improve the speed and quality of knowledge acquirement greatly
本文首先討論了影響神經網路的泛化能力的因素，提出了一種新的結構自適應神經網路學習演算法，在新方法中，採用了遺傳演算法對神經網路的結構參數（隱層節點數、訓練精度、初始權值）進行優化，大大提高了神經網路的泛化能力和知識動態獲取自適應能力;其次，構造集成神經網路，引入數據融合演算法，實現了基於集成神經網路的融合診斷，有效地提高了知識獲取的全面性、完善性及精度;然後，針對知識獲取過程中所存在的不確定性、不完備性等問題，探討了運用粗糙集理論的知識獲取方法，通過缺損數據補齊、連續數據的離散、沖突消除、冗餘信息約簡、知識規則抽取等一系列的演算法實現了智能診斷的知識規則獲取;最後，將粗糙集理論與神經網路相結合，研究了粗糙集-神經網路的知識獲取方法。In this work, the influences of fabrication process on microstructure, dielectric properties, ferroelectric properties and pyroelectric properties of plt films have been studied. plt films were prepared on the pt ( 111 ) / ti / sio2 / si ( 100 ) substrates by radio frequency magnetron sputtering method and then annealed by rapid thermal annealing process ( rta ) or conventional furnace annealing process ( cfa ). with the help of atom force microscopy ( afm ), x - ray diffraction ( xrd ) and some other apparatus, it was found that : lower substrate temperature ( ts ) was helpful for plt films to form better surface morphologies. with the increase of substrate temperature, the dielectric constant of plt films increased
Afm 、 xrd以及性能測試結果表明:較低的基片溫度有利於形成表面均勻緻密的薄膜，且薄膜的表面粗糙度均方根較小;隨著基片溫度的升高，經過快速退火的plt薄膜的介電常數逐漸增大;相比于傳統退火，快速退火縮短了退火時間，提高了薄膜的介電和鐵電性能;快速退火隨著保溫時間的延長，大部分鈣鈦礦結構的特徵峰的峰強增大，半高寬減小，峰形越來越尖銳，但當保溫時間為80s的時候， （ 100 ）和（ 110 ）峰的強度有所下降，因此保溫時間在60s較為適宜。Polysaccharide of mycelia from phellinus igniarius cultured by shaking were studied. lg9 ( 34 ) orthogonal experiment were carried out to find the optimum method of extracting polysaccharide from mycelia. the magnitude of range indicated that the factors which effected extracting ratio were times, time, temperature and proportion
本文對液體培養桑黃菌絲體的主要活性成分多糖進行了研究，首次利用lg9 （ 3 ~ 4 ）正交試驗法對桑黃菌絲體多糖的提取工藝進行研究，從級差的大小可以看出影響桑黃菌絲體粗多糖提取率的因素主要是浸提次數，其次分別是浸提時間、吉林農業大學碩士學位論文桑黃主要生物學特性及多糖的研究浸提溫度、浸提比。When subjected to such process, the steel surface will be covered with numerous fine manganese - phosphate crystals so that the crystal nucleus necessary for manganese - based phosphorizing increases greatly in number. this may not only accelerate phosphorization and properly lower the temperature of phosphorization, but also prevent big - size crystals from being generated. as a result, the resulting phosphate has improved fineness and evenness
鋼鐵經它處理后，會在其表面覆蓋上許多極細小的錳磷酸鹽結晶，使錳系磷化所需晶核數目大為增加，以而加速磷化反應速度，並能適當降低磷化溫度，還可以阻止粗大結晶的生成，因此形成的磷化膜更加均勻細致。Then nearness rough membership function based on nearness relationship rough sets are defined and its properties are investigated. as a rough factor, nearness rough membership function is integrated into a kind of neural networks. and the new neural network can decrease the influence of noise and make it convergent rapidly
本文在相近關系的基礎上，提出了衡量粗糙隸屬度的方法，研究了該函數的性質，利用隸屬度函數作為粗糙因子設計了粗糙因子神經網路，可減小噪聲污染的影響，並使網路的收斂速度得到提高。分享友人