素數分佈 的英文怎麼說

中文拼音 [shǔfēn]
素數分佈 英文
distribution of prime numbers
  • : Ⅰ形容詞1 (本色; 白色) white 2 (顏色單純) plain; simple; quiet 3 (本來的; 原有的) native Ⅱ名...
  • : 數副詞(屢次) frequently; repeatedly
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
  1. The computational results of the particle images are agreement with the simulated datain reasonable, the most absolute difference of the displacement is 0. 6671 pixel at the x abscissa and 0. 7928 pixel at y abscissa ; the computational results are equal to the data form the algorithm of particle brightness - distribution pattern tracking ( the conventional cross - correlation algorithm ) at voluminous points, their discrepancy is only one pixel at few points, mostly in boundary area

    西安理工大學碩士學位論文最後,在visualfortran環境下給出了這種演算法的具體實現,處理模擬粒子圖像的結果與模擬據比較吻合,最大位移絕對誤差在x方向是0 . 6671像,在y方向是0 . 7928像;計算結果與示蹤粒子灰度模板法(基本的互相關法)在絕大部點是相同的,只在少點相差一個像,而且大多出現在邊界區域。
  2. By two ways, this paper debates the theory of fracture detection : on one hand by the way of edge detection in image processing ; on the other hand by time series analysis. the detection by time series analysis is more antinoise than edge detection in image processing. edge detection theory in image processing mainly includes correlation data, fuzzy edge detection, entropy operator edge detection and gradient edge detection

    圖像處理中的邊緣檢測的方法主要包括相干據體法、模糊邊緣檢測法、基於熵運算元的邊緣檢測法、梯度邊緣檢測法;其中模糊邊緣檢測法比較依賴于參的選擇,其渡越點兩邊的像區別明顯;熵運算元的檢測方法則是檢測的圖像邊緣比較光滑,連通性好;梯度檢測法可以使用不同的運算元核,演算法比較簡單;相干據體對于總體的大的裂縫的具有比較奸的反應。
  3. The approximation analysis result of band dipole model is obtained on the basis of the theory of mfl. the electromagnetic distribution feature of the defect in the steel panel is studied by means of simulation. the leakage magnetic distribution of the two defects and four defects plural and the defects in the column differently in the width are also assayed. conclusions that factors affecting flaw magnetic leakage to the panel also affect the column and magnetic leakage bx should be the feature of the flaw identification to several flaws are drawn

    在對漏磁檢測原理進行詳細介紹的基礎上,得出了帶偶極子模型的近似解析解,並以有限元值模擬析為主要手段,以鋼板上缺陷為對象,析了各因對缺陷漏磁場產生影響的不同規律,同時模擬析了板上平行的兩條裂紋,四條裂紋以及柱體上寬度不同時的裂紋的漏磁場特徵,得出結論:影響板上缺陷漏磁場的諸因會對柱體上缺陷漏磁場產生同樣的影響;對于多條裂紋,宜用漏磁量bx作為缺陷識別的特徵量。
  4. ( 3 ) distill the environmental geologic factors and analyzes their harmness and reasons mainly analyzes the status in quo, reason, distribution, harmness and defend for the falls, surface sink, mine suddenly water, landslip, castoff, etc. ( 4 ) evaluate the probability of the geology calamity take use of the method of factors and coverage union to evaluate the probability of the geology calamity, and then plot out the high, middle and low probabilit

    ( 3 )提取環境地質因並進行析其危害及成因利用提取的要字地面模型和屬性據庫及常規資料重點析了構造、塌陷、礦坑突水、崩塌、廢棄物、地下水疏干區等要的現狀、、成因、危害及防治。 ( 4 )為金礦區地質災害易發性做出評價利用權重值和圖層疊加的方法對金礦區地質災害易發性做出評價,把金礦區劃為高易發地區、中易發地區和低易發地區,針對這些地區提出治理措施。
  5. The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed

    文中利用齒墩設施實現附加射流,對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗,析研究了中低佛勞德條件下,齒墩墩頭的動水壓強及空化特性,齒墩設施與消力池聯合應用時的流態特性,消力池的水力計算,消能量的估算及其各種影響因,消能機理和效果,消力池內的流速、壓強特性,摻氣濃度等水力學問題,並提出了實現附加射流齒墩設施的水力設計方法和步驟。
  6. Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution

    在此基礎上模擬在冬夏兩季不同情況下,不同流速對熱管空氣預熱器壁面溫度的影響;然後對影響整個流場的各種因:包括流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因進行值模擬;最後提出在流煙道轉彎處加裝導流板,並模擬加裝導流板后的流場,得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場、濃度場,以論證加裝導流板能達到流場均勻化的作用。
  7. Purpose : to explore the risk factors for nosocomial infection of urological surgical department. method : 2 976 cases of urological surgical patients was investigated retrospectively for the nosocomial infective prevalence in urological surgical department from the april 1996 to april 1999. result : nosocomial ratio in urological surgical department was 4. 87 %, in which 73. 1 % for male and 26. 9 % for female. the infective sites are lower respiratory tract, surgical wound, urinary tract, gastrointestinal tract, upper respiratory tract and skin - soft tissues in turn, infection rates were 4. 38 %, 10. 4 %, 13. 6 %, 27. 6 %, 25. 5 %, 30. 3 %, 20. 8 %, 42. 6 % for clean wound, dirty wound, infection wound, artery catheter, venouse catheter, urinary tract catheter, respiratory tract, and general anesthesia respectively. conclusion : the nosocomial infection was not related to age, infection time and the usage of antibiotics ; but was closely related to gender, surgical sites, surgical wound type, invasive operation, the degree of tisk index and micropathogens

    目的:探討泌尿外科醫院感染的危險因.方法:回顧性調查1996年4月1999年4月間我院泌尿外科手術患者2976例的醫院感染情況.結果:泌尿外科醫院感染率為4 . 87 % ,其中男性佔73 . 1 % ,女性佔26 . 9 % ;感染部位依次為下呼吸道、手術傷口、泌尿道、胃腸道、上呼吸道、皮膚軟組織;類切口術后感染率為4 . 4 % ,類切口術后感染率為10 . 4 % ,類切口術后感染率為13 . 6 % ;動脈插管感染率為27 . 6 % ,靜脈插管感染率為25 . 5 % ,泌尿道插管感染率為30 . 3 % ,呼吸道感染率為20 . 8 % ,全麻感染率為42 . 6 % .結論:醫院感染與患者年齡、感染時間和抗菌藥物使用情況無關,與性別、部位、手術切口類型、侵入性操作、危險指等級及病原微生物有密切關系
  8. Abstract : purpose : to explore the risk factors for nosocomial infection of urological surgical department. method : 2 976 cases of urological surgical patients was investigated retrospectively for the nosocomial infective prevalence in urological surgical department from the april 1996 to april 1999. result : nosocomial ratio in urological surgical department was 4. 87 %, in which 73. 1 % for male and 26. 9 % for female. the infective sites are lower respiratory tract, surgical wound, urinary tract, gastrointestinal tract, upper respiratory tract and skin - soft tissues in turn, infection rates were 4. 38 %, 10. 4 %, 13. 6 %, 27. 6 %, 25. 5 %, 30. 3 %, 20. 8 %, 42. 6 % for clean wound, dirty wound, infection wound, artery catheter, venouse catheter, urinary tract catheter, respiratory tract, and general anesthesia respectively. conclusion : the nosocomial infection was not related to age, infection time and the usage of antibiotics ; but was closely related to gender, surgical sites, surgical wound type, invasive operation, the degree of tisk index and micropathogens

    文摘:目的:探討泌尿外科醫院感染的危險因.方法:回顧性調查1996年4月1999年4月間我院泌尿外科手術患者2976例的醫院感染情況.結果:泌尿外科醫院感染率為4 . 87 % ,其中男性佔73 . 1 % ,女性佔26 . 9 % ;感染部位依次為下呼吸道、手術傷口、泌尿道、胃腸道、上呼吸道、皮膚軟組織;類切口術后感染率為4 . 4 % ,類切口術后感染率為10 . 4 % ,類切口術后感染率為13 . 6 % ;動脈插管感染率為27 . 6 % ,靜脈插管感染率為25 . 5 % ,泌尿道插管感染率為30 . 3 % ,呼吸道感染率為20 . 8 % ,全麻感染率為42 . 6 % .結論:醫院感染與患者年齡、感染時間和抗菌藥物使用情況無關,與性別、部位、手術切口類型、侵入性操作、危險指等級及病原微生物有密切關系
  9. Composed of micro diamonds, aluminum oxide, and silicon carbide, the isotopic distribution of these grains bore the telltale marks of their birth : ancient supernovas and red giant stars, that shone brightly and then flickered out, billions of years ago, before the birth of the solar system

    由微金剛石、鋁氧化物、碳化硅組成的這些微粒的同位透露出它們的誕生:那些十億年前,在太陽系尚未誕生時,曾經閃耀並最終熄滅的古老超新星和紅巨星。
  10. On the bases of the galaxy evolution theory, we use the therotical chemical evolution model of three zone ( such as halo, thick disk and thin isk ) and multi - phase ( diffuse gas, molecular clouds, stars of both low and high mass, the remnants ). by comparing with the observational constraints, such assurface densities, age - metallicity relation, g - dwarf metallicity distribution in the solar neighbourhood and the correlation between [ a / fe ] and [ fe / h ], supernovae rates, infall rates. the rationality of the model is verified. based on the theory model, we calculate the abundance of neutron capture element

    本文正是在銀河系化學演化的基礎上,利用銀河系的三成( threezone ) (即暈、厚盤和薄盤)多相( multi - phase ) (氣體,子云,大、小質量恆星以及剩餘物質)的化學演化的理論模型,通過與觀測約束(質量面密度、場星的年齡-金屬豐度關系、太陽附近g矮星金屬含量、三成份的特徵量、元的星系化學演化、超新星的爆炸率、內落速率等)的比較,來檢驗模型的合理性。
  11. Some of the more pertinent variables include the relative wind, the type of terrain onto which the flammable fluid has drained, the fuel distribution, the location of the fuel spillage within the aircraft, the number of structural openings ( designed or crash produced ) that meter the inflowing air available for an internal fire, and the amount of fuel available to spill

    某些更重要的因,包括相應的風速,油料瀉溢的地面狀況,油料的,飛機內油料外溢的位置,根據結構上開口的量(設計上的與墜機造成的)來計算灌入的空氣是否會造成內部火災,以及可能外瀉的油料量。
  12. The lognormal distribution is widely used in geology to characterize sediment size variations and geochemical element concentrations.

    在地質學中,對正態已被廣泛用以表示沉積粒度變化特徵和地球化學元濃集情況。
  13. The distribution law of prime number in natural number

    關于正整列中規律
  14. The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore

    第一章回顧了孔結構在當今國內外的研究現狀,包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀,介紹了孔結構研究方面的一些最重要的成果;第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理,並討論了水泥基多孔材料孔隙析中常用的表徵參,也說明了壓汞法測孔對研究結果的影響因,指出了壓汞法在孔結構研究中的局限性;第三章是著重析了孔隙率與強度關系模型的發展歷程,並對已有的模型進行了比較析,指出了原有模型的不足之處;第四章在「綜合集成」的基礎上,提出了混凝土孔結構復合體模型和孔系統的物理模型,並模擬了該模型下由各單體並聯形成的復合體的斷裂過程,最後根據所建模型編制了相應的計算程序,可根據輸入的孔徑與水泥含量等參,實現混凝土理論強度的計算;第五章對第四章模型中出現的模型參進行了相應的試驗據對比析,根據回歸析的方法得到了反映基體強度特徵的k值,並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響,檢驗模型的正確性;第六章是結論與展望,根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。
  15. Studies on fiber morphology and lignin distribution of the triploid of populus tomentosa carr

    三倍體毛白楊纖維形態學參及木質微區的研究
  16. We investigated the distribution of the heterotrophic bacteria with the epifluorescence microscope and measured the bacterial production with the tritiated tymicline incorporation method, and we investigated the correlation between the heterotrophic bacteria and chlorophyll, inorganic nitrogen also. there was distinct spatial distribution of the bacterial biomass in the east china sea and the yellow sea during fall and spring

    本文利用表面熒光顯微鏡觀測計法和[甲基- 3h ]胸腺嘧啶示蹤法對春秋兩季節我國黃、東海異養細菌生態及其生產力狀況,以及異養細菌及其生產力與浮游植物葉綠、無機氮鹽之間的關系進行了研究。
  17. It shows that the particle number will fluctuate with the recombination coefficient ; 3 ) the dynamic process of the n - type doped diamond film is simulated. the particle distributions of s, s + and ar + are gotten. the result has important reference to the investigation of n - type diamond film doping at low temperature

    ( 3 )對不同氣壓、偏壓和不同的配比情況下n型硫摻雜的金剛石薄膜的動力學過程進行了模擬,得出了摻雜元s和s ~ +以及惰性氣體ar ~ +的粒子,計算結果對摻雜過程的研究有重要的參考價值。
  18. In this paper, we studied the distributing appearance and combinating regulation of terrain elements, analysized the basic operational functions of terrain, bringed up the basic principles of terrain analysis, and described the main content, method ind step of terrain studying and terrain analysizing with digital map, therefore, we have discovered the substance and basic regulation of terrain studying and analysizing

    本文研究了地形要形態與組合規律,析了地形的基本作戰性能,提出了地形析的基本原則,闡述了研究地形和利用字化地圖析地形的主要內容、方法和步驟,在一定程度上揭示了研究與析地形的實質和基本規律。
  19. Based on the data of the rare - earth element in coals from coal seams of the late permian liupanshui, leping, huangshi and chongqing coal mining districts in south china, this paper focuses on the discussion of the characters of content distribution, occurrence, distribution pattern and geologic factors of the rare - earth element in coals in the studied districts

    摘要在華南地區貴州六盤水、江西樂平和湖北黃石礦區以及重慶鐘梁山和磨心坡煤礦晚二疊世煤的稀土元電感耦合等離子質譜據的基礎上,系統研究了華南地區煤的稀土元的質量特徵、賦存特徵、配模式及其地質控制因
  20. Abstract : the climate general situation of the highest temperature, relative humidity and wind speed in relation to the body feeling temperature from june to september in qingdao city was analysed statistically. according to the calculating model of body feeling temperature and distribution characteristic of relative meteorology elements, an empirical formula was derived. the body feeling temperature distribution in different scopes corresponds to different hotness index and comfortable feeling of outdoor people

    文摘:統計析了青島市區夏季( 6 9月)與體感溫度關系密切的最高氣溫、相對濕度和風速的氣候概況;根據體感溫度的計算型式和有關氣象要特徵,得出其經驗計算公式;在不同區間內的體感溫度對應著不同的暑熱指及戶外人群的舒適感受。
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