active region 中文意思是什麼
active region
解釋
動態區域-
The fusion protein was bactericidal active against staphylococcus aureus. in present study, we will truncate the none channel - forming do main, then attach the agrd to the pore - forming region ( k544 - i626 ) to construct a new engineered multidqmain protein machine - compact engineered peptide targeting staphylococcus aureus. such engineered peptide was constructed by linking the gene of staphylococcal agrd pheromone with the gene of c - terminal ( 1626 ) of colicin la pore - forming region ( k544 - i626 ) with site - directed mutation
利用點突變方法將金黃色葡萄球菌信息素agrd （ i型， ystcdfim ）的基因引入到大腸菌素fa梭基端1626基因上，並將限制性內切酶sacl酶切位點基因分別引入到大腸菌素fa的p4和k544上，通過酶切、膠回收、連接獲得含大腸菌素ia水性孔道結構域和金黃色葡萄球菌信息素agrd基因的重組質粒。 -
Coronal active region
日冕活動區 -
It is inferred that its active transcription occurs in the same region, not the nucleoplasm. the result will help us to further comprehend the mechanism of rna polymerase transcription, the way of its transcripts processing and transport, and the structural and functional relationship among the three rna polymeraes
這一結果不僅直觀地向人們表明了rna聚合酶在真核細胞核中的轉錄位點，而且對於人們進一步認識和理解rna聚合酶的轉錄機制、其轉錄產物的加工運輸途徑、以及真核細胞當中不同的rna聚合酶間的組織和調控關系都將有著重要的理論意義。 -
From these results, it is inferred that the active transcription of pol iii occurs in the nucleoli and its periphery region, but not the nucleoplasm. the result will help us to further comprehend the mechanism of rna polymerase iii transcription, the way of its transcripts processing and transport, and the structural and functional relationship among the three rnapolymeraes
本實驗為rna聚合酶在真核生物細胞核中的轉錄位點提供了較為直接的證據，這對人們進一步了解rna聚合酶的轉錄機制、加工和運輸過程及三種rna聚合酶之間的結構與功能關系具有重要的意義。 -
In chapter one, we make a review of particle acceleration theory and the use in solar corona. in chapter two, first we get the spectrum of synchrotron radiation then obtain the electron energy spectrum. in last chapter, we select the typical solar active region parameter to compare our result to the observation and discuss the acceleration mechanism
本文第一章對粒子加速理論以及目前各種加速理論在太陽日冕中的應用作了介紹；第二章通過理論計算得到同步加速輻射譜以及電子能譜；第三章選取太陽日冕中典型參數，對同步加速輻射加速日冕快電子作了簡單討論。 -
Active faults or tectonic lines are clear boundaries between a very active region and a quiet region.
活動斷層或構造線是強烈活動已和平靜區之間的清晰邊界。 -
Gth is the active region gain required to offset losses in the regions exterior to the active region.
Gth是為了補償在有源區以外的區域中的損失所要求的有源區增益。 -
Gth is the active region gain required to offset losses in the regions exterior to the active region
Gth是為了補償在有源區以外的區域中的損失所要求的有源區增益。 -
When the number of the active region is added, the thermal properties of the novel laser become bad. it must be improved. 3
新型多有源區結構的激光器隨有源區數目的增加，散熱性能變差，其熱特性有待進一步提高和改善。 -
In ld aspect, reduction or increase of the active region thickness can reduce the aspect ratio of the ld beam and consequently improve the beam ’ s symmetry
在ld方面，減小或增加有源區的厚度，都可以減小激射光束的縱橫比，改善ld光束的對稱性。 -
The heat sources are analyzed in theory and calculated under some hypothesis. a thermal conductive model is built and by solving the model equation, the numerical values of the 1 - active region laser, 2 - active region laser, 3 - active region laser and 4 - active region laser are obtained. the dynamical temperature distribution plots are obtained, too
在一定的假定條件下對其內部的熱產生率進行了定量計算，並分別針對一、二、三、四有源區激光器建立了熱傳導模型，得出數值解，畫出激光器內部瞬態溫度分布圖，推導了激光器連續工作條件。 -
The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。 -
Image taken by trace, showing a magnetically active region at the edge of the sun
由trace拍攝的照片，顯示出太陽邊沿的磁力活躍區。 -
In optical fiber aspect, the incident beam can be collimated, converted and focused by some kinds of lenses, making the mode of incident beam matched with or near the optical fiber ’ s modes. in this thesis, thorough theoretical analyses and experimental investigations were made for the external optical properties of a 980nm high - power tunnel junction regenerated multi - active - region quantum well stripe - geometry algaas / gaas / ingaas ld and three different stripe - width 980nm high - power
本論文圍繞本實驗室研發的新型隧道再生多有源區980nmalgaas / gaas / ingaas量子阱大功率半導體激光器和多種條寬的單有源區980nmalgaas / gaas / ingaas量子阱大功率半導體激光器的光場外特性、單模階躍折射率光纖和多模漸變折射率光纖的模場特性進行了深入的理論分析和實驗研究。 -
There are many approaches to achieve the purpose, and one of the perfect them is tunnel - cascaded multi - active regions large cavity ld structure, in which not only the effective thickness of the active region increase but also obtain lds ’ low threshold current and high slope efficiency and other properties
有多種途徑實現ld光束特性的改善，其中採用多有源區隧道結級聯大光腔結構的半導體激光器是既增加有源區等效厚度而又保證ld低閾值電流和高斜率效率等特性的最佳途徑之一。 -
The pixel array of the ccd is 544x544. theoretical analysis shows the solar x - euv imaging telescope can observe the active region, flare, cme, eit wave, " dimming ", " sigmoid " and " cusp " phenomena
太陽x - euv成像望遠鏡能夠觀測活動區、耀斑、冕洞、 cme 、 eit波、 dimming 、 sigmoid 、 cusp等影響空間天氣變化的太陽活動、太陽爆發先兆現象、太陽爆發伴生現象。 -
According the temperature distribution of the high power laser diode array, we design a high efficient water cooler to accelerate the conduction of heat with the circular water in the cooler in order to disperse the heat in the active region of a laser, so we can keep a constant operational temperature. by doing those and solving such problems, we can master the technology of gaining the high duty - cycle high power laser diode array, including the material growth, the making of a laser bar
通過對該項目進行研究，解決高占空比大功率半導體激光器陣列材料生長、管芯製作、器件製作等工藝難點，掌握高占空比大功率半導體激光器陣列的製作關鍵技術，將激光器工作的脈沖占空比提高到20 ，以適應泵浦nd ： yag固體激光器的要求。 -
Metal impurities unintentionally introduced into si wafers during various device process steps are very harmful to device performances. many gettering techniques have been widely studied to overcome these problems by removing metal impurities from the active region of a device. reduction in device size and introduction of new moralization processes require more efficient gettering techniques working at lower temperatures
半導體工藝中無意引入的金屬雜質的污染會極大損害器件性能，為了將金屬雜質從器件的有源區吸除，吸雜技術被廣泛的研究，器件尺寸的不斷縮小和新的金屬化工藝的不斷出現更需要能在低溫有效吸除的技術。 -
The effect of a few important geometrical and physical parameters which include the length of the active region, the thickness of the active region, bulk traps, interface traps, on the tft ( thin film transistor ) characteristics of polycrystalline silicon has been investigated by using advanced two dimensional device simulation program medici
摘要利用高級二維器件模擬程序medici分析了多晶矽薄膜晶體管有源區的長度、體內陷阱、界面陷阱、柵氧化層厚度等幾何參數及物理參數，並研究了這些參數對薄膜晶體管特性的影響。 -
( 2 ) there is a complex magnetic field in the active region before the flare eruption
（ 2 ）耀斑爆發前，該區域內出現復雜的磁位形。
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