相干強度 的英文怎麼說

中文拼音 [xiānggānqiángdù]
相干強度 英文
coherent intensity
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 強 : 強形容詞（強硬不屈;固執） stubborn; unyielding
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 相干 : 1 （多用於否定句或疑問句） have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
  1. In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”

    由於人類活動干擾強度加大，公路效應深度不斷擴展， 1976年為5km ， 1988年為7km ， 2003年達到11km ;受自然、社會條件的影響，不同路段的公路效應存在較大差異，甚至同一路段兩側效應也各不相同。 1976年至2003年，距公路不同距離范圍內的人口密度都在增加，且距離公路越近，人口數量密度越大、增長越快，人口分布有向公路兩側聚集的趨勢。選取人口密度為大、中、小三個樣區分別分析公路效應的范圍表明，人口密度
  2. The intensity of the coherent light builds up very rapidly.

    相干光的強度迅速地增大。
  3. The results show : ( 1 ) that the dynamical properties in the system depend on the degree of entanglement of the initial two identical two - level entangled atoms and the intensity of the coherent optical field, and the atomic dipole moment can be completely squeezed via choosing optimal degree of entanglement of the initial atoms in the feeblish optical field ; ( 2 ) that the quantum properties of the system also depend on the degree of entanglement of the initial two identical two - level entangled atoms and the intensity of the coherent optical field, and the radiation field can be effectively squeezed via choosing optimal degree of entanglement of the initial atoms in the fee blish optical field

    （ 2 ）相干態光場的強度和兩原子的初始糾纏度對光場的量子特性也有很大的影響。光場的二階相干性質（聚束與反聚束）和光場的壓縮效應均與光場強度和兩原子糾纏度相關聯。在弱光場中，選擇合適的兩原子初始糾纏度，光場壓縮深度和時間可達到最大。
  4. ( 2 ) region is mainly made up of large patches which are distributed collectively. region landscape is mainly made up of the hill grassplot landscape of mountainous region and desertification landscape. ( 3 ) with the enhancement of human beings effect, landscape diversity indexes are declined, landscape evenness indexes are reduced, and landscape fragmentations are intensified

    通過這些指數的分析表明：甘肅省以草地景觀為主，斑塊數較多，大小斑塊間差異較大，斑塊形狀較復雜，自相似程度較低，區域總構形較復雜；區域總構形以大斑塊為主體，呈聚集型分佈，構成景觀主體的是山地丘陵草地景觀和裸地景觀；隨著人類干擾強度增加，景觀多樣性下降，均勻度降低，景觀破碎化程度加深。
  5. In the chapter 3, algor feas ( also called super sap ), a commercial fem software is introduced ; several. problems in building the finite element model of a auto frame is researched ; taking advantages of fem and mathematic programming, a strength analysis method of the frame of a series multi - spindle hydropneumatic suspension automobile is proposed ; taking the structure and load characteristic of a missile ' s frame into account, the static, eigenvalue and response analysis have been made by using super sap91

    第三章簡要介紹了大型有限元軟體sap91 ；對車架有限元建模及分析中的若干問題進行了討論；利用有限元法和數學規劃法相結合，提出了一種串聯多軸油氣彈簧懸架車輛車架強度分析的方法；針對某導彈發射車車架的結構和載荷特點，利用sap91軟體對其進行靜力分析、特徵值分析和動力響應分析。
  6. We analyze the influences of the perturbed energy - level space and superposion, laser power and intermediate level offset on quantum interference. experimentally, in the sodium dimmer rhomb - type four - level system with a pair of perturbed levels, the interference enhancement of two - photon absorption caused by coherent superposition of the perturbed levels is experimentally observed

    分析了微擾能級的間隔和疊加程度、激光功率以及中間能級的失諧對量子干涉效應的影響，實驗上觀察了包含有一對微擾疊加中間能級的菱形四能級系統中的雙光子激發現象，發現微擾能級的相干疊加可增強雙光子吸收。
  7. Compared with current instruments, the setup can decrease disturbance of disorder radiation by using double layer refractive index sample matching vessel, and it can increase collecting and transmitting efficiency of radiation by adopting single mode fiber with gradient refractive index lens. with a low power laser, the sample has a low scathe, and the laser and the measurement system can be integrated conveniently

    與現有的同類型儀器相比，該儀器採用雙層折射率樣品匹配池減少了雜散光的干擾；採用帶梯度折射率透鏡的單模光纖接收、傳輸散射光信號提高了散射光的收集傳輸效率；用低強度的激光避免了對樣品的輻射損傷，同時可以使激光器和系統集成在一起，整個系統小型實用。
  8. It has been shown that whether resonant or non - resonant interaction system, the kerr effect weakens the coupling of the field - atom, shortens the cycle of quantum collapses and revivals of the atomic level occupation and makes the nonclassical correlation properties steady. kerr effects on the properties of the correlation, on the correlation intensity between the two - mode, on the photon - number distribution and on the bunching or antibunching effect of the two - mode su ( 1, 1 ) coherent states produce obviously different characters when it is changed the initial intensity of the light field. that is to say, kerr effect on the two interaction systems is accorded

    數值計算結果表明：無論是共振還是非共振相互作用， kerr效應均使原子與光場的耦合減弱，原子布居的崩塌與復甦的周期縮短，光場的非經典相關的穩定性增強；在初始光場較弱和較強兩種情況下，類kerr介質對雙模su （ 1 ， 1 ）相干態場兩模間的相關性、相關程度以及光子的聚束與反聚束效應產生的作用均有明顯的區別，即kerr效應對系統在共振及非共振作用時的影響是一致的。
  9. It has been shown that : the little indentation which represents the quantum noise of the system appears in the evolution curves ; the quantum noise which is caused by virtual photon field gradually becomes weak when w increases, the quantum noise increases when n increases ; the virtual photon process make the antibunching effect strengthen, make the squeezing degree deepen obviously, and lead to the additional vibration of entropy, the oscillation extent of the additional vibration of entropy increases when n increases and decreases when co or g increase. besides, the quantum dynamics of two coupling atoms interacting with a single mode ligh t field in a kerr medium is studied in this paper ; the influences of the kerr effect on the mean photon number, the degree of second order coherence of field, the evolution of the field entropy and the squeezing effect are also discussed

    ）的增大，量子噪聲分別減小和增大；虛光子過程使光場的反聚束效應增強，使光場的壓縮程度明顯加深，並引起了附加的「熵振蕩」 ，這種附加「熵振蕩」的幅度將隨著光場初始平均光子數（ ? ）的增加而增大，隨著光場頻率和原子間耦合系數g的增大而減小。本文還研究了充滿kerr介質腔中「耦合雙原子-單模光場」相互作用系統的量子動力學性質，研究了克爾效應對場的平均光子數、二階相干度、場熵演化特性及光場壓縮效應的影響。
  10. The waveform generated using digital systems is of strict coherence, repetitiveness, high stability and programmability, which can also easily realize the waveform parameter agility and generate arbitray waveforms in order to meet the urgent needs for anti - interference and strong viabilities of radars under modern ew environment

    數字方法生成的波形具有嚴格的相干性、可重復性、高度的穩定性和可編程的優點，能夠方便地實現波形參數捷變以及產生任意復雜波形，滿足了現代電子戰環境中對雷達抗干擾和強生存能力的迫切要求。
  11. Finally, the atomic coherent population trapping is studied in a multilevel laser - induced continuum structure system including cascade two - photon processes by means of quasi - classical theory. the condition leading to the atomic coherent population trapping and the dark state are given explicitly. the effects of atomic initial state and the laser intensity on the populations distributed in the atomic bound states are discussed

    我們還運用準經典理論研究了含級聯雙光子過程的多束縛態激光場誘導原子連續態結構系統中原子布居數的相干俘獲，給出了產生相干俘獲的條件及暗態的表達式，討論了原子初態和激光強度對原於布居數的影響，揭示了原子相干對穩定rydberg原子的重要作用。
  12. The study indicate that the surface form has no effect on kl, but has obvious effect on kll, and will affect the breaking angle and mode ; in finite plate, the boundary condition has effect on the sif and the k is bigger than in infinite plate ; the effect of the distance and the angle between cracks are all have obvious effects on the multiple crack interaction, and the interactions between cracks also have obvious effects on the sif, which can be neglect only when the distance is bigger enough

    研究表明：裂面狀態對k _的大小沒有影響，而對k _的影響卻很大，相同應力條件下，裂面狀態會影響裂紋的開裂角和開裂方式；有限板的邊界對應力強度因子有一定的影響，其k比無限板中的k略大；裂紋間的距離、夾角等因素對裂紋間的干涉效應均有較大影響，裂紋間的干涉效應對應力強度因子的影響非常顯著，只有當裂紋間的距離充分大時，干涉效應才可忽略。
  13. Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task

    文摘:本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12
  14. The restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task

    本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12
  15. Abstract : this thesis discussed how to limit the death penalty and guarantee its quality from the perspective of procedure which includes 3 questions : first, there have several issues need to be solved for the second public hearing trial ; second, it ' s not enough to take the death penalty review power back from the high court to the supreme court ; third, it ' s so necessary to strengthen defense in the death penalty cases

    內容提要：本文從三個方面討論了如何從程序上限制死刑、保證死刑案件的質量，分析了落實死刑案件二審開庭所要解決的問題，指出應利用死刑復核收回這一機會完善相關制度，並提出加強死刑案件辯護的若干建議。
  16. With the dissipation approximation, the results show that if the dissipation constant is considerably small, the influence of the environment on the coherence of the field can be ignored ; the larger the field ' s intensity is, the weaker the entanglement between the field and the atom, and the larger the degree of the mixture for the field ; the more the atomic distribution angle tends to tr / 2, the larger the mixture degree of the field is, while the stronger the entanglement between the field and the atom

    在耗散近似下，結果顯示：如果耗散系數k足夠小，則光腔對光場相干性的影響可以忽略；場強越大，光場與原子之間的糾纏越弱，場可達到的最大混合度越大；原子分佈角越趨向/ 2 ，場的混合度越大，而場與原子之間的糾纏越強。 nnewdy力amicspr明州娜毓協月
  17. Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field

    文摘:討論了在雙光子驅動場作用下，三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用，兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質，這不僅依賴于兩個上能級與禁帶的相對位置，同時也依賴于原子的初始狀態，而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同，也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質
  18. The main results of this thesis can be summarized as follows : 1. based on the huygens - fresnel principle, we have derived the propagation expressions of the partially coherent beams passing through an annular lens optical system. the influence of the spectral degree of coherence, fresnel number and truncated parameter on the focused intensity distribution and focal shift is analyzed

    主要工作包括: 1 .從惠更斯-菲涅耳原理出發，推導了部分相干光束通過環形透鏡系統的傳輸公式，分析了空間相干度、菲涅耳數、攔截系數對系統中光束的聚焦光強和焦移的影響。
  19. Products function : put our “ sun shine ” brand carbon steel fiber evenly seep into concrete to form steel fiber reinforced concrete and it can decrease the thickness of reinforced concrete by half, it not only shorten the project time, save the material and manpower expense, bring distinct economic benefit, but also increase the performance of crack resistance, percussion resistance, tensile strength, bend resistance. scosspr resostamce amd wear resistance of the reinforced base materials. if the weight ratio of 2 % steel fiber seep into the concrete, it can solve the brittleness problem of the concrete, in the condition of 60 % ralative air humidity, after 21days air - dry, even 520 days air - dry, it ' s difficult to find any crack by eyesight, the bend resistance for the steel fiber concrete is 140 times stronger than the concrete without steel fiber, the capability of impact resistance increase 10 times

    產品功能：將本公司「雙興」牌碳鋼纖維系列產品均勻地摻入混凝土中，形成鋼纖維增強混凝土，可使工程中鋼筋混凝土的施工厚度降低一半，不僅縮短了施工工期，節省了材料和人工費用，帶來顯著的經濟效益，且增強了基體的抗裂、抗沖擊、抗彎、抗剪、耐磨擦等性能，如摻入本公司2 %鋼纖維的混凝土，不僅解決了混凝土的脆性問題，在空氣相對濕度60 %的條件下風干21天後，甚至在風干520天，肉眼很難發現裂縫，摻入鋼纖維后的增強混凝土比不摻鋼纖維的混凝土抗彎強度提高140倍，耐沖擊荷載提高10倍。
  20. Abstract : one of the unsolved problems of the high power application of high temperature superconductors is how to lower the energy dissipation induced by flux motion. due to the extremely high anisotropy, small coherence length and weak pinning potential, the mixed state phase diagram which is tightly related to the flux dynamics becomes very complicated. a brief account is given of the field induced crossover of criticalities of energy dissipation, which has been observed in our recent sensitive electromagnetic measurement

    文摘:高溫超導體在強電方面應用的關鍵問題是如何克服磁通運動所造成的能量損耗.由於存在極強的各向異性、短的相干長度和小的磁通釘扎勢，因此與磁通運動緊密相關的混合態相圖變得很復雜.文章綜述了根據一系列靈敏的電磁測量所觀察到的磁場誘導的能量耗散行為的轉變
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