輻合反射 的英文怎麼說
中文拼音 [fúgěfǎnshè]
輻合反射
英文
convergence reflex-
Above all, the system fuse the eradiate noise ' s different sides " feature and offer strong elements for the next process : classifying. it is very important to study the classifier in this dissertation
其中線譜特徵反映了船舶輻射噪聲的頻域信息,能量特徵綜合了不同頻段內的信息,而分維特徵反映了信號的時域的信息。Through measuring the value of infrared radiation when the complex decoy is burning, it is concluded that the complex decoy ' s energy of infrared radiation is much more than the substrate ' s. through researching the performance of microwave radar ' s transmission and refection within the band of 3mm and 8mm, it is proved that the interference with radar is feasible
在復合誘餌劑的性能測試方面:對制備出的復合誘餌劑燃燒時的紅外輻射展開研究,發現了復合誘餌劑的紅外輻射能量比基片的紅外輻射能量有很大的增加;開展了對3mm 、 8mm波段毫米波雷達的透射與反射性能試驗,證明了該誘餌劑干擾雷達波是可行的。To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range
地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反(散)射光分量進行了深入分析,在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋( lai ) 、地形起伏和海拔高度的影響,並以象元坡面定義的半球空間立體角對環境入射光進行積分,使周圍地形和天空散射光均得到適當考慮,計算量又在可接受范圍內。Four kinds of 7 - ( n, n - diethylamino ) coumarins with highly active groups were synthesized under microwave irradiation and their structures were characterized by ir, nmr
摘要採用微波輻射技術合成了4種帶有較強反應基團的7 -二乙胺基類香豆素,並通過紅外光譜、核磁共振等手段對產物的結構進行了表徵。Based on the theory of retrieving lst through satellite remote - sensing and the characters of semi - tropical climate, topography, vegetation and the noaa / avhrr data in guangxi, the split - window algorithms for retrieving the lst from space, including the kerr algorithm, the becker & li algorithm, the qin algorithm, the franca & cracknell algorithm and some others, were analyzed and compared
根據利用衛星遙感資料反演lst的理論方法,結合廣西現有的衛星資料及亞熱帶氣候、地貌、植被等特點,對國內外的kerretal演算法、 becker & li演算法、 qinetal演算法和franca & cracknell演算法等10多種反演lst的分裂窗演算法及其相關的參數估算方法進行了適用性分析,得出採用輻射率模型中的beckerandli演算法計算廣西白天的lst比較適用。We obtain a new quark potential from the effective dilaton - gluon - coupling inspired by superstring theory, and by using this static potential, we explore the mechanism of quark confinement through calculations of the spin - average energy levels, the widths of the leptonic decays and radiative transitions for heavy quarkonium. the obtained results are compared with that of the cornell potenial
由規范場理論的超弦理論所激發的伸縮子一膠子有效藕合,給出了一個新的靜態夸克一反夸克勢,討論了此勢模型下重介子的自旋平均能譜、輕子衰變和輻射躍遷寬度,並與cdrn叭勢模型所得到的相應結果作了比較The degradation of the electrical characteristics in sic pn junctions irradiated by neutron is attributed to the recombination centers and the electric field effect on the thermal emission of traps within the depletion region. the relationship of the ideality factor to the applied voltage is theoretically studied
提出了中子輻照下sicpn結電特性退化的新的理論, pn結耗盡區中的輻照陷階在耗盡區電場的作用下熱發射效應得到加強,從而導致pn結正偏和反偏時的復合電流和產生電流的改變。Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion
文摘:在無線光通信領域,利用非成像光學設計的集中器能夠聚集光輻射能量,而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光線追跡法對半球形集中器的性質進行了分析與研究.對好幾種非成像集中器:半球形集中器,復合拋物線形集中器,介質內部全反射集中器,多表面集中器,多相介質集中器,從設計原理、增益和視場進行比較,並分析其應用場合The results show that selection of radiation parameterization schemes has distinct impact on the simulated results. the results simulated by the group with detailed long - wave and short - wave radiation parameterization scheme reflect plateau terrain and typhoon, cloud, subtropical high, trough / ridge more particularly and reasonably ; intensity of typhoon rainfall center is improved 1 / 3, there have been some improvements on intensity of the north heavy snow, more approach the observation
通過對2002年第16號臺風個例和2002年12月19 24日降雪個例的模擬,結果表明:選用不同的輻射參數化方案對模擬結果具有明顯的影響,較詳細的長短波輻射參數化方案組合模擬的各種輻射量和雲對地形以及臺風、副高和槽脊等天氣形勢的反映更加細致合理;降水的預報也更加接近實況。Based on the spectral irradiance measured with the sun - atmosphere ultraviolet spectrum radiometer ( sauvs ) developed by the institute of atmosphere physics and the changchun institute of optics and fine mechanics, chinese academy of sciences, measuring the direct and scatter irradiance spectrum of ultraviolet waveband which arrives in beijing global surface, giving a method of retrieving the aerosol optical depth ( aod ) and put up with primary results that exponential function can fit the retrieval results according to its visibility, putting forth different coefficients and functions on variable visibility, also giving a primary analysis on the aod in dust - storm day and some contrast between sun - day and dust - storm day, analyzing the ratio between scatter and total irradiance, and its relationship with atmosphere mass and total atmosphere optical depth, lastly contrasting with the survey results by aeronet beijing station, the results of retrieval is in reason, this work gives some help in researching the co - effect of aerosol - radiance - climate and makes preparation for further survey on the radiance characteristics of dust
利用中國科學院大氣物理研究所與長春光學精密機械研究所合作研製的太陽?大氣紫外光譜輻射計( sauvs ) ,測量到達北京地表的太陽直接和散射紫外光譜輻射,導出了大氣氣溶膠的光學厚度。初步結果表明:北京紫外波段大氣氣溶膠的光學厚度在絕大部分情況下隨波長的增加而單調減小,用指數函數可以較好地擬合反演結果,統計得到了三個水平能見度狀況下擬合函數的系數值和公式表達式;初步分析了揚沙、浮塵、沙塵暴天氣條件下氣溶膠光學厚度的特點,並與一般晴朗天氣條件下的氣溶膠光學厚度特點做了比較分析;分析了太陽紫外譜輻射中散射輻射與大氣質量、大氣總光學厚度的定性關系和定量表達式;最後與全球氣溶膠監測網路( aeronet )北京站的資料做比對,表明反演結果基本合理。The maize and neorgelia cawlinae meyendor ffii were treated with uv - b radiation with the intensities of 0uw. cm - 2 ( ck ), 10uw. cm - 2 ( r1 ) and 15uw. cm - 2 ( r2 ), the duration of uv - b treatment were ten hours per day ( from am8 : 00 to pm18 : 00 ). the effect of uv - b radiation on the photosynthesis was studied, and the results showed as follows : ( l ) the effects of uv - b radiation on photosynthesis of maize and neorgelia cawlinae meyendor ffii the results of the experiment show that the photosynthesis of maize seedlings was restrained because of the decrease of chlorophyll contents activity of hill reaction stamotal conductance activity of pepcase and atp content caused by increased uv - b radiation, and it was more restrained under higher uv - b radiation. though the activities of rubpcase and pepcase were decreased, the chlorophyll contents activity of hill reaction stamotal conductance of mature maize were not affected, therefore the photosynthesis of grown - up plant was not affected
Cm ~ ( - 2 ) ( r2組)的uv - b輻射,每天處理10小時( 8 : 00 ? 18 : 00 ) ,直至玉米成熟,以自然光照為對照( ck組) ,對增強uv - b輻射條件下玉米和紅彩鳳梨光合作用的響應作了深入的研究和探討,結果如下: ( 1 ) uv - b輻射對玉米和紅彩鳳梨光合作用的影響研究結果表明,因增強uv - b輻射降低了玉米幼苗葉片的葉綠素含量、 hill反應活力、氣孔導度、 pepcase活性和atp含量,從而影響了玉米幼苗的光合作用,使其光合速率下降,且隨uv - b輻射強度的增加其影響程度加大;而玉米成株在增強uv - b輻射環境下其葉綠素含量、 hill反應活力、氣孔導度等未受影響,雖然其rubpcase活性和pepcase活性有所下降,但總體上其光合作用受到的影響不大。The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level
本論文作者通過模擬測試,驗證了課題研究的理論設想,並設計製作了具有低陽極發射效率結構的高壓功率frd ,利用局域鉑摻雜和電子輻照相結合的壽命控制方式,實現器件反向恢復時間的極大減小,並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想,且具有極佳的漏電溫度特性,達到器件綜合性能的優良折衷,達到國際先進水平。In order to reduce the membrane ' s cost, we prepared the membrane by simultaneous radiation grafting of styrene onto teflon - polytetrafluorethylene films and subsequent sulfonated by the chlorosulfonic acid introducing the activity sulfonic acid grape into the grafting side chains of the polymer films
在實驗中採用高能輻射技術,先將苯乙烯單體接枝到聚四氟乙烯聚合物基體上,后經氯磺酸磺化反應引入磺酸基團,合成了滿足燃料電池性能要求的質子交換膜。The department ' s programs are at the forefront of nuclear science and technology leading to improved performance of fission - powered reactors, the technological applications of nuclear and radiation phenomena in biomedical, industrial, and environmental fields, and the development of nuclear fusion as an energy source
本系的課程走在核子科學和科技的最尖端,目的在提高核裂變反應爐的效能、核子和輻射在生物醫學、工業和環境領域的應用,以及研發核融合成為穩定的能源。The energy will couple in the region of diode and decrease the output power, if there is no reflector placed in front of the sws at the end of beam injection
對于這種振蕩器如果在電子注輸入端沒有反射器,微波能量將耦合到二極體區,使輻射到空間的微波能量減少。The pentaerythritol diacetals were effectively synthesized through condensation reaction of pentaerythritol with aldehydes and ketones promoted by zirconium sulfate - silica gel under microwave irradiation
摘要微波輻射硫酸鋯矽膠催化季戊四醇與醛、酮縮合反應,高收率制得了雙縮醛和雙縮酮化合物。In this paper, the vacuum thermo - cycling effects and vacuum ultraviolet effects on space inflatable structural materials were analyzed based on a thorough survey over the studies done through flight tests, ground simulation experiments and theoretical research. the main contents of this thesis are as follows : the performance damage effects of thermo - cycling on space inflatable structural fabric carbon fiber reinforced epoxy laminates ( cf / ep ), aluminized kapton ( al / kapton ) films which used as reflector of space inflatable antenna were investigated by a temperature range of - 120 120 with the vacuum degree 10 - 5 pa which conducted with space environment ground - based simulation facility
本文在對國內外飛行試驗、地面模擬試驗以及理論研究等所取得的成果調研的基礎上,針對空間充氣結構材料進行地面模擬真空熱循環與真空紫外輻照的研究工作:利用真空熱循環地面模擬試驗機研究了真空環境( 10 - 5pa )中- 120 120的熱循環條件下空間充氣支撐結構織物碳纖維增強環氧樹脂( cf / ep )層合材料、空間充氣展開天線反射面鍍鋁聚酰亞胺( al / kapton )薄膜的空間環境效應。Secondly, typical approaches of studying on vegetation have included radiative transfer, four - stream, geometric optics, hybrids of two or more of these, and numerical simulation. then we introduced several models for density or sparse vegetation, soil and desert
然後,簡單論述了建立植被散射模型的發展動態和幾種典型方法:輻射傳輸模型、四通量模型、幾何光學模型以及復合模型等,初步研究了用於稠密植被、稀疏植被、土壤、沙漠等環境背景的雙向反射函數模型。The high - performance heat - reflective coated glass is also called sunlight control coated glass it is made by coating a number of metal or metal compaound films onto the high - quality float glass or other base glass with the vacuum magnetic control sputtering method, which can effectively control the reflection, transmission and absorption of solar energy, that is to say, this glass allows sufficient natural light to come in for daylighting, and can also reflect major part of sunlight irradiation to reduce the collection of indoor heat and lower down the expenses for ventilation and air conditioning ; furthermore, the transmission, reflection ratio and reflection color are ready for the selection by the users
高性能熱所射鍍膜玻璃也稱為陽光控制鍍膜玻璃,是在優質浮法玻璃或其他基片上用真空磁控濺射的方法鍍多層金屬或金屬化合物薄膜而成,可有效控制玻璃對太陽能的反射、透過和吸收,也就是說允許足夠的自然光進入室內用於採光,還能把大部分太陽光輻射熱反射掉,減少室內熱量的積聚,降低通風及空調的費用,而且可以根據客戶的需求,靈活選擇透過率,反射率及反射顏色。The validation result also indicates that over land, the apparent reflectance algorithm behaves better than dynamical threshold algorithm ; while over ocean, the clear and cloud failure scores do not have much difference
本文的研究工作表明,當不用歷史資料,不知道區域先驗氣候值和輻射值時,雙通道動態閾值法和表觀反射率法均有可能獲得合理的結果。分享友人