ground radiation 中文意思是什麼
ground radiation
解釋
地面輻射-
The rotational levels of the ground vibrational level may be depopulated by radiation.
基態振動能級的各轉動能級的粒子數可能因幅射而減少。 -
To broaden the antenna ' s impedance bandwidth and its radiation pattern, a novel printed dipole antenna with reflecting structure of v - shaped ground plane was proposed
摘要為了擴展天線的阻抗帶寬和改善天線的方向性，提出一種採用了地平面反射結構的新型印製偶極子天線。 -
Increased cloud also blocks the atmospheric window and returns additional long-wave radiation to the ground.
雲的增加對大氣窗區也起著屏蔽作用，因而使額外的長波輻射返回地面。 -
In contrast with the measurement of backscattered ultraviolet solar radiation onboard satellites, ir radiance measurements in 9. 6m spectral channel at various instruments onboard meteorological / environmental satellites allow ozone estimates during both day and night. in this paper, we use ir radiance measurements within 9. 6 im spectral channels from moderate resolution spectral radiometer ( modis ) and advanced tiros operational vertical sounder ( atovs ) to retrieve total column ozone based on the operational retrieval system of national satellite meteorological center. for validating retrieval results, both ground based observation and total ozone mapping spectrometers ( toms ) ozone measurements are used and atovs retrieval results are corrected after the validation
本文利用美國noaa衛星上的先進的大氣垂直探測器業務系統（ atovs ）儀器和地球觀測系統衛星（ eos ）上的中解析度成像光譜儀（ modis ）上的9 . 6 m臭氧探測通道的輻射測值，在國家衛星氣象中心業務反演軟體系統基礎上，反演出了兩種儀器探測的大氣臭氧總量，並且利用中國五個常規臭氧觀測站的資料和美國研製的臭氧總量測繪光譜儀（ toms ）反演的臭氧資料對兩種反演結果進行驗證分析，對atovs反演結果進行了訂正。 -
Using outputs of ground temperature, vapor pressure, wind speed and low cloudage. middle cloudage as well as high cloudage from mm5v36, and ground direct radiation and out - going scattered radiation from modtran3
利用數值預報模式mm5v36輸出地面氣溫、水汽壓、風速和低雲量、中雲量及高雲量等氣象要素。利用大氣輻射傳輸模式modtran3 . 0輸出地面太陽直接輻射和射向天空的散射輻射以及總輻射。 -
While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed
在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。 -
Lastly, the land disposition model was set up at dahe town, hebei province, including town development direction decision, town land scale decision, town land structure optimum. taking use of fuzzy aggregate principle, choosing ground load - bearing capacity, quality of taken up land, groundwater level, economic land use, infrastructure building cost, radiation capability, transport, life environment, town form as evaluation element, the town development direction decision model at dahe town were set up
運用模糊集合變換原理，選擇了地基承載力、土地農業生產力、地下水位、節約用地、基礎設施建設成本、對周邊的輻射、現有基礎設施、對外交通便利程度、城鎮生活環境、城鎮形態等10個評價因子，建立了小城鎮用地空間擴展決策模型，研究表明大河鎮鎮區用地未來的空間擴展主方向應該是東面和東北面。 -
Aerial surveys are conducted using special radiation equipment on board a government flying service helicopter while mobile ground surveys are carried out using a custom - fitted van which has on board the necessary measurement equipment
而在地面巡測方面，天文臺在一輛特別改裝的小型貨車上裝上所需測量儀器，到香港各區進行地面巡測。 -
In addition to the fixed ground - based radiation monitoring network, aerial and mobile ground surveys will be conducted to determine whether there is radioactive material over hong kong, and if so, the extent of its spread and whether any parts of the territory have been contaminated
除了使用輻射監測網路外，天文臺更會在境內進行空中及地面輻射巡測，以確定本港是否受放射性物質影響，並進一步偵測其污染程度及分佈情況。 -
Simulation of standoff land air - to - ground anti - radiation missile attack ' s zone and its combat effectiveness
防區外空地反輻射導彈攻擊區及作戰效能模擬 -
Anti - radiation missile ( arm ) is an air - to - air or air - to - ground missile that can seek, track and destroy radar systems by making use of electromagnetic wave of the radar beaming, which is also called anti - radar missile
反輻射導彈（ anti - radiation - missile ， arm ）是一種利用雷達輻射源發射的電磁波，發現、跟蹤並摧毀雷達系統的空空、空地機載導彈，也稱為反雷達導彈。 -
The rate of single event upset ( seu ) for space - based missions has been predicted by means of ground - based particle accelerator test and simulation calculation based on models of space radiation environment and the interaction of ions with the microelectronic device
我們採用的方法是用地面重離子加速器模擬實驗和計算機模擬空間輻射環境進行單粒子翻轉率預估計算。引發單粒子翻轉的空間高能帶電粒子環境包括銀河宇宙線，太陽宇宙線和地球輻射帶中的高能質子及重離子。 -
Radiation intensity measured by instrument at 100-150m above ground is no guide to the economic significance of an occurrence.
在100-150米高空用儀器測得的放射性不能說明礦點的經濟價值。 -
The results show that a warm high ridge at the middle level and transformed surface cold high over the plain provide a good background condition ; a cooling process produced by net surface radiation fluxes is the trigger and strengthening mechanism for the fog event ; the subsidence flow at the middle and low tropospheric levels is favorable for the setting - up and maintenance of stable stratification at the boundary layer and weak wind condition at the ground layer over the fog region ; the transportation of weak warm advection at lower levels and weak lift motion at the boundary layer play a very important role to the long maintenance of the fog event ; the intrusion of north wind accompanied by cold advection is a main dynamic factor of the fog dissipation
結果表明：在中高層暖性高壓脊及地面變性冷高壓穩定維持的大尺度背景條件下，地表凈輻射引起的近地層冷卻是大霧過程的觸發和加強機制；中低空下沉氣流的存在有助於近地層的弱風條件和穩定層結的建立；低層暖平流的輸入和邊界層的淺層抬升是大霧長時間持續的原因；伴隨冷空氣南下的偏北大風是驅使大霧消散的動力因子。 -
A number of atmospheric nuclear tests took place from 1945 to 1980. radioactive particulates produced in the explosions dispersed into the atmosphere by the winds and some of them deposited onto the ground. deposition of these radioactive materials increased the level of artificial radiation in the environment
在一九四五年至一九八零年期間，世界各地進行了多次大氣核試爆，所產生的放射性塵埃隨風擴散，部份沉降到地上。這些放射性沉積物為我們自然環境增加了額外的人工輻射。 -
The simulations of ground temperature and earth absorbed net solar radiation are lower than the observation. sensible heat and latent heat are also lower than the observation
由於模式模擬的地溫偏低，凈的短波輻射偏小，則模擬的感熱和潛熱值偏小。 -
The typical ifa includes a circuit ground, a radiation patch, a feed pin and a shorting mechanism
典型倒f天線包括充當地面的印刷線路板，輻射貼片，饋電探針和短路結構。 -
The remote sensing refers to air to ground one, namely from different working platform far away the ground ( for example gao ta, balloon, airplane, rocket, the artificial earth satellite, spaceship, aerospace craft and so on ), through the sensor, exploring the information ( radiation ) to the earth ' s surface electromagnetic wave, and after the information transmission, processes, estimation and analysis, it can be regarded as a kind of comprehensive technology of surveying and monitoring earth ' s resources and its environment
摘要遙感是指空對地的遙感，即從遠離地面的不同工作平臺上（如高塔、氣球、飛機、火箭、人造地球衛星、宇宙飛船、航天飛機等）通過傳感器，對地球表面的電磁波（輻射）信息進行探測，並經信息的傳輸、處理和判讀分析，對地球的資源與環境進行探測和監測的綜合性技術。 -
The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。 -
In this paper, some factors influencing its temperature field have been synthetically analyzed including the ambient temperature, solar radiation, air convection and sky radiation, ground radiation and so on. the hourly temperature of the roof and walls of the tested building in summer and winter was calculated with the finite element software - ansys. the results from calculation had well consistent with the experimental results
本文結合試點建築溫度場監測結果，理論分析了影響建築物溫度場的各種因素，包括：大氣溫度、太陽輻射、空氣對流以及天空輻射、地表環境輻射、建築物自身輻射等因素，總結了實用計算公式，採用有限元數值方法，藉助有限元軟體ansys進行了屋面和各方位墻體在自然環境作用下的溫度場模擬分析，與實測結果比較吻合。
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