散射屏 的英文怎麼說
中文拼音 [sǎnshèbǐng]
散射屏
英文
diffuse screen-
90 % uv below 400nm could be shielded by the nano - sio2 sol. the time of the artificial aging of nano - sio2 - modified coatings prepared by the way of in - situ dispersion method was about twice as long as that of the nano - sio2 - modified coatings prepared by dispersing the nano - sio2 powder in the coating directly. on the other hand, the fadeproof time ( reaching the second level of color aberration ) of the nano - sio2 - modified coatings was 1. 83 times as long as that of the national standard for the super coatings
實驗證明:納米510 :溶膠具有很強的紫外散射屏蔽性能，對400nm以下的紫外光能屏蔽90 %以上;在位分散法納米510 :改性塗料的耐人工老化粉化時間比直接分散法納米510 :改性塗料提高了近1倍，耐變色時間（達到色差2級的時間）是國標優等品要求的1 . 83倍，較相應的未改性塗料提高了約25 % 。A quantitative analysis on the surface of the plate composite membranes with various polymerization tune was made on the basis of the feature absorption to ir by means of attenuated total reflection - fourier transform infrared spectroscopy. the results showed that polyamide functional layer grew thick with the polymerization time going on. this indicates that the polyamide functional layer formed on the interface cannot separate the w / o phases to stop the reaction
利用衰減全反射-傅立葉變換紅外（ ftir - atr ）對不同聚合時間的平板復合膜表面進行了特徵吸收定量分析，研究發現，聚酰胺功能層隨聚合時間不斷增厚，這說明已形成的聚酰胺功能層不能屏障兩相而終止反應，相反由於哌嗪單體的分子量遠低於納濾截留分子量的范圍，很易擴散穿過功能層達到兩相界面，繼續與有機相單體酰氯反應。A medium that scatters light, used in photography to soften shadows
漫散屏，柔光屏散射光線的介質，用在攝影中使背景柔和In the engineering simulation experiment, the distance between the neutron source and the detector is close, the scattered neutron cannot directly measured through shielding from neutron source with shield cone
在工程模擬實驗中，中子源與探測器相距較近，不能用陰影屏蔽錐法直接測量散射中子本底（即非期望中子） 。In the experiment, the scattered background neutrons is studied with the shielding method and the scattered background neutrons in the experiment hall is eliminated from signal neutrons by the method of combining the shielding experiment ' s results with the mcnp / 4a code calculation
需用mcnp 4a程序計算實驗大廳的散射中子本底分佈。採用專門設計的屏蔽法研究散射中子本底。並和mcnp 4a程序計算相結合的方法扣除了在特定實驗條件下實驗大廳的散射中子本底。This kind of reflectors possessed the advantages of the traditional reflectors and the phased arrays. the reflectarray is made up of lots of resonant elements. when the feed radiate the reflectarray, the reflected wave could be focused at some desired direction owing to the adjustment of each element
這種陣列反射天線具有反射天線和陣列天線共同的優勢，它的基本結構就是由大量的無源諧振單元組成的單屏或多屏周期性陣列，然後由一個饋源照射這個天線，通過調節介質板上每個單元對于入射波的散射相位，使得反射波在特定的方向實現同相位，發射出方向性極強的筆形波束。Moreover, a mirror that is a section of a perfect sphere will produce a blurry image of each point in arnolfini ' s room ; each point is spread into a “ blur spot ” on the support, which i calculated would be several times the size of the fine detail in the painting
再者，如果鏡子是從正圓球切下來的，投射出的影像會變得模糊，阿諾菲尼房內的每一點在屏臺上都會分散為模糊點，根據我的計算，模糊點的大小是畫中細節部份的好幾倍。Clk - proliferation cyclone applicable to the collection of non - fiber drying of granular dust is the main characteristics of a conical dongshen, thus reducing the dust since the dongshen gas exports to the centre to short - circuit the possibility and install a conical reflector screen to prevent the two air separation will have to roll up the dust down, brought out by the increased flow, thereby enhancing the efficiency of dust
Clk擴散式旋風除塵器，適用於捕集乾燥的非纖維性的顆粒狀粉塵，主要特點是筒身呈圓錐形，因而減少了含塵氣體自筒身中心短路到出口去的可能性，並裝有圓錐形的反射屏，防止兩次氣流將已經分離下來的粉塵重新捲起，被上升氣流帶出，因而提高了除塵效率。This paper stresses on discussing the architecture, access protocol and implementation mechanism based on xml and web services technologies, researches key technologies of metadata information service and data uniform access and management in database grid, designs and implements distributed mis subsystem and das subsystem, which support multi - domain management. mis can provides metadata information for the whole system, such as das and clients, it uses domain name 、 logical name and internal name of data object to uniformly name database resources in grid and implements name mapping mechanism and user view metadata information service and provides virtual organization and management of database resources. das can provide a scalable uniform data access by virtual organization and management of storage resources and multi - mode data share access mechanism, thus integrate database resources in grid and shields distribution and heterogeneity of resources and achieves transparent access. system adopts data access mechanism based on user request mapping to flexibly implement data access across multi domains, and adopts distributed data cache mechanism 、 security mechanism based gsi to provide high - performance secure data service for grid users
本文論述了griddaen - dai系統的邏輯結構、訪問協議、數據服務流程以及基於webservices 、 xml等技術的實現策略，重點研究數據庫網格中的元服務、數據統一訪問和管理等關鍵技術，設計和實現了支持多管理域的分散式元服務子系統和數據訪問服務子系統。其中元服務主要為整個系統提供各種元信息支持，它採用域名、數據對象的邏輯名稱、物理名稱和內部名稱對廣域環境下的數據庫數據進行了統一命名，實現了相應的名字映射機制和全局的用戶數據視圖服務，提供了數據庫資源的虛擬組織與管理方式;數據訪問服務通過提供可擴展的統一數據訪問和支持多種數據共享訪問模式，屏蔽了數據庫資源的分佈性和異構性，為用戶提供了統一透明的數據服務。In chapter 4, method of moment ( mom ) solution of transient electromagnetic scattering by perfect conducting surfaces is discussed by dealing with time - domain integral equations ( tdie ' s ). rectangular patches model and triangular patches model are compared and their applications are exploited. in the mean time reference [ 42 ] and [ 61 ] are recruited
其中第四章通過求解時域積分方程給出了良導體表面瞬態電磁散射的矩量法解，比較了矩形貼片模型和三角貼片模型並拓展了它們的應用，補充了文獻[ 42 ]和[ 61 ]的內容；第五章工作重心是計算機顯示器屏蔽箱體的設計，對通風問題給予了充分考慮。Different from the scattering theory used in the derivation of conventional generalized screen propagator, in this paper, a high order formula of generalized screen propagator for one - way wave equation is proposed by using the asymptotic expansion of single - square - root operator
摘要不同於常規廣義屏傳播運算元的推導中使用散射理論，本文利用單平方根運算元的漸近展開，推導出了單程波方程廣義屏傳播運算元的高階表達式。By solving the equation numerically, the effects of diffusion on the property of the self - deflection of the photorefractive solitons are studied. the results show that the spatial shifts of bright screening solitons and sp solitons depend directly on the voltage factor. for dark solitons, the stronger the input intensity is, the larger the bending - angle is, whereas bright solitons depend on the input intensity nonlinearly
在考慮一階擴散效應后，通過數值計算分析和比較了三種光折變空間孤子的自偏轉特性，得出屏蔽和屏蔽光伏明孤子的偏轉量與分壓系數成近似線性關系，與入射光強成非線性關系，而暗孤子偏轉量隨入射光強的增加而增加。分享友人