particle emission 中文意思是什麼

particle emission 解釋
粒子發射
  • particle : n 1 顆粒,微粒;微量,極少量。2 【物、數】粒子,質點。3 【語法】虛詞,不變詞〈冠詞、副詞、介詞、...
  • emission : n. 1. (光、熱、氣體等的)發出,發射,射出,放射;傳播。2. (紙幣等的)發行;發行額。3. 發出物,放射物。4. 【醫學】排出;遺精。
  1. To attain the high - power, well - proportioned and steady high - energy particle beam is the base of analyzing beam loss. the factors that influence the emission performance of the filament are analyzed, and the parameters are calculated. the experiment results proved the correctness of analyses

    獲得大功率、均勻、穩定的高能粒子束是進行束流損失分析的基礎,本文分析了影響燈絲發射特性因素,對燈絲各參數進行了設計計算,實驗證明了分析的正確性。
  2. Flare particle emission

    耀斑粒子發射
  3. Ruburning with coal has been proved a effective low nox emission combustion technology 。 in this ph. d thesis, the reaction mechanisms of reburning have been investigated, and the homogeneous and heterogeneous reduction of nox have been analyzed in details. a series of reburning experiments have been carried out on an entrained - flow reactor, in which two kinds of coals with different particle sizes have been used

    本文對煤粉再燃過程中,揮發分及煤焦的基元反應途徑和反應機理進行了詳細分析;在攜帶爐實驗臺上進行了神華煤、邢臺煤在1200與1300 、四種煤粉細度、三種再燃燃料比和三種再燃區初始氧量,共144個實驗工況下的再燃實驗。
  4. Measurment of emission rate of particle. method for large area proportional counter

    粒子發射率的測量大面積正比計數管法
  5. Several methods of determination of the vehicle particle emission factor were reviewed in this paper. the application, and the advantages and disadvantages of those models were introduced. at last, the paper pointed out that the further study of vehicle particle emission factor was needed

    綜述了國內外幾種常用的機動車顆粒污染物排放因子的確定方法,介紹了各模型的使用概況及其優缺點,最後提出對機動車顆粒污染物排放因子應深入開展有關研究。
  6. Using this system, research on nox emission and burnout characters of the test facility are carried out. the results of influence on nox emission and carbon in fly ash by coal type, coal particle diameter, furnace temperature and excess air are reached through tests. then micronized coal reburning tests are processed, which show a remarkable effect results on nox reduction and burnout rate

    通過大量的試驗,得出了煤種、煤粉細度、爐膛溫度和過量空氣系數等因素對nox排放和煤粉燃燼率的影響趨勢;並在此基礎上研究了超細粉再燃對脫氮效果和燃燼性能的作用,試驗結果表明超細煤粉再燃對降低nox排放和飛灰含碳量具有明顯的效果。
  7. We are able to measure the sun's particle emission and map its magnetic field.

    我們可以測量太陽的粒子輻射和描記它的磁場。
  8. The improved pick - up mechanism is still employed to calculate composite particle emission in this model

    在這一模型中,整個核反應粒子發射過程中嚴格遵守了角動量,宇稱守恆和能量守恆。
  9. The particle emission of fuel vehicles were introduced under different operation conditions, and hazard of synergistic action of different diameter particles and other air pollutant on human body health are elaborated

    摘要本文介紹了燃油機動車在不同運行狀況下排放顆粒物的情況;以及不同粒徑顆粒物與其它環境空氣中污染物協同作用對人體健康的危害。
  10. Nondestructive testing ( ndt ) techniques used in material inspection, fabrication inspection and inservice inspection of pressure vessels are reviewed including ultrasonic, radiographic, magnetic particle, penetrant, eddy current, acoustic emission, infrared, magnetic flux leakage and magnetic memory techniques

    摘要綜述壓力容器原材料、壓力容器製造和使用過程中採用的無損檢測技術,包括笤聲、射線、磁粉、滲透、渦流、聲發射、紅外線、漏磁和磁記憶檢測技術。
  11. In order to solve the conflict of supply and demand, firstly, this particle discusses the characters of the national budget investment the emission of stock, attracting foreign capital and invest direct, domestic banks " loan, international financial organizations and foreign governments " loan, and the emission of bond, the bot mode and other financing manners. also, the particle analyses the resources of each financing manner and characters concretely. then, it analyses the scale, cost, construction and manner of highways " raising project, and it emphasizes banks " loan domestic and overseas, the emission of stock and bond, the attornment of highway ' s charge rights, the capital cost of bot financing manner, and uses the model to calc ulate the compositive capital cost, then build the worst ( in the worst environment hypothetically ) and the best scheme ( in the best environment hypothetically ) accordingly, after the comparison, we can obtain the status of the project ' s net cash flux, the debt ' s endurance capability, income and a series of data in any possible state, so that to get the optimized scheme and prepare for the scientific decision

    為了解決資金的供需矛盾,本文首先論述了國家預算內投資、發行股票、吸收國外資本直接投資、國內銀行貸款、國際金融組織和外國政府貸款、發行債券、 bot方式等融資渠道的特點,具體分析了各融資方式的資金來源渠道及它們的特點;接著分析了公路項目籌資的規模、成本、結構和方式,重點分析國內外銀行貸款、發行股票和債券、轉讓公路收費權、 bot融資方式資金成本,用模型的方式具體計算綜合資金成本,建立相應的最差方案(在假設的最差條件下)和最佳方案(在假設的最好條件下)與之進行比較,獲取在各種可能條件下的項目凈現金流量狀況、債務承受能力和收益情況等一系列數據,確定整體最優方案,為科學決策做準備。
  12. The increase of radiative transition rate with decreasing particle size was attributed to the lower symmetry surrounding the eu3 + ions, while the increase of nonradiative transition rate to the extra nonradiative transition channels caused by surface defects. ( 3 ) under excitation of 488 nm, temperature - dependence of emission intensity of the 5d4 - 7fj transition in nanocrystalline y2o3 : tb was studied. in nanocrystalline, there appeared two maximal intensities

    ( 3 )研究了488nm激光激發下不同顆粒尺寸的y _ 2o _ 3 : tb納米晶熒光發射強度隨溫度的變化規律,發現y _ 2o _ 3 : tb納米晶熒光發射強度在280k與590k存在兩個極大值,而體材料只在280k有一個極大值。
  13. We researched the influences of systhesis temperature, heat preservation time, eu + concentration, reduction surrounding feeling and flux on luminescent properties of sral2o4 : eu2 + phosphors, optimized the experiment conditions and reduced systhesis temperature about 100 c. we found that the systhesized sample ' s luminescent brightness is better with increasing systhesis temperature, but the phase component is more complex. we found that the luminescence brightness of sample appear a increasing process at first, and then a reducing one with the raise of eu2 + concentration, it indicated that the luminescence brightness is not better if the eu2 + concentration is too high or low. we found that the systhesized sample can not bright at too long heat preservation time, and the luminescence brightness is lower at too short heat preservation time. we found that particle diameter is bigger, the wavelength of emission peak is longer

    研究發現合成溫度高,合成樣品的發光效果好,但物相組成也較復雜; eu ~ ( 2 + )離子在一定摻雜濃度范圍內,合成樣品的發光亮度先是出現一個提高過程,然後是一個降低過程,說明eu ~ ( 2 + )離子濃度高或低都不利於合成樣品發光;保溫時間較長,合成樣品不發光,保溫時間較短,合成樣品發光效果不好,只有合適的保溫時間才能合成發光效果好的樣品;合成樣品的粒徑大小與發射峰的位置具有一定的關系,粒徑越大,發射峰越偏向長波方向;助熔劑對樣品的合成溫度和發光性能都有影響,助熔劑的量較低時,主要表現為助熔作用,對發光影響不大,助熔劑的量較高時,使得樣品發光亮度降低和余輝時間縮短;還原方式的不同,合成樣品的發光性能也不一樣。
  14. Influence of ni particle on field electron emission from carbon nanotubes

    顆粒對碳納米管場致電子發射的影響
  15. This paper consists of the following parts : firstly, the physical properties ( particle size distribution, specific area, porosity ratio and pore volume ) and pyrolysis characteristics have been studied in experiments with four kinds of coals. according to experimental results, the advantages of combustion characteristics of micro - pulverized caols are analysed on the theory. secondly, the reconstructing plan is designed in details for a conventional system of the hot air transferring pulverized coal to reduce nox emission

    本文主要包括以下內容:首先,通過基礎的實驗分別對四種具有代表性煤種一、三次風所含煤粉的物理特性(粒徑分佈、孔隙率、孔容積和比表面積)和熱解特性進行研究,從理論上分析煤粉細化后,較細顆粒(即三次風含粉)在燃燒特性上的優越性,為三次風含粉用於再燃燃燒打下基礎。
  16. On the base of the study of dense gas - solid flow, we make full - scale numerical simulation on the combustion and pollutant emission processes of the 75t / h circulating fluidized bed ( cfb ) which is developed by our institute. we draw the conclusion on the characteristics of flow field, particle track, temperature profiles and species profiles. we also study the characteristics of coal combustion and nox formation and the interactive influence between them

    在對高濃度氣固兩相流動的系統研究基礎上,針對我們熱能所研製開發的75t h循環流化床熱電氣三聯供裝置,首次對于流化床燃燒爐內的燃燒和污染物排放進行了較全面的數值模擬,得出了爐內的流場、顆粒軌跡場、溫度場和組份場,研究了煤粉燃燒特性和氮氧化物的排放特性以及影響它們的因素。
  17. Calculation of neutron emission characteristics ( energy and yield as a function of angle ) as a function of energy for one charged particle reaction ; discussion of uncertainities

    以蒙地卡羅方法設計及評估對于產生中子的低能量、高流率的加速器設施屏壁防護。
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