氣流機制 的英文怎麼說
中文拼音 [qìliújīzhì]
氣流機制
英文
air stream mechanism- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 機 : machineengine
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 氣流 : 1 [氣象學] air current; airflow; wind current; airstream2 [語言學] breath氣流紡紗 open end spinni...
- 機制 : 1 (機器製造或加工的) machine processed; machine made 2 (機器的構造和工作原理; 有機體的構造、功...
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These show that it is easier to inspire the severe convective weather by the action of nonlinear gravity waves in the condition of the existence of high - level jet
因此中尺度非線性重力波的相互作用是強對流天氣突然爆發和一類颮線形成的可能動力機制之As gas pools, it turns into stars, whose outflows and explosions push material back out into intergalactic space ? a process of negative feedback
當氣體集中形成恆星,所產生的噴流與爆炸會將物質向外推回星系際空間,這是一種負向的反饋機制。Theoretical researches on solar activity, solar flare and cme were involved in many fields of foundational physics such as plasma astrophysics, magnetohydrodynamics ( mhd ) and so on. the forecast of solar activity, a main branch of space weather, was becoming more and more significant for preventing space disaster and for many aspects of space science
探索太陽活動的規律、太陽耀斑及其伴隨cme的先兆、觸發過程及能量傳播機制等等,從理論上推動了等離子體天體物理、磁流體力學等諸多基礎理論的發展,有著重要的理論意義;而對太陽活動的預報,是國際前沿科學?空間天氣學的重要組成部分,對避免空間災害、為航空航天科學提供服務等方面,具有重大的實際應用價值。The air - flow field in the stripping unit can be adjusted easy by changing the rotation speed of fan which is benefit to reduce the grain losses, it was found during experiment that the cross - flow fan can diffuse some of mog ( material other of grain ) and diffuse it in a certain direction which is useful to satisfy the working condition for driver and lighten working load of the threshing unit of the combine harvester candidate and speciality : peng shengmin ; machinary design and theory supervisor : prof. zhang huiyou
該裝置可以通過控制橫流風機的轉速,使裝置內氣流在有控制的情況下排出裝置外,改善了裝置內流場狀態,提高了裝置喂入口處的負壓,這對減少摘脫裝置的落粒損失,有著重要意義。由於橫流風機的除雜,可以減輕機器的復脫和清選負荷。安裝橫流風機后可以對裝置的出風口處灰塵進行有效導引,改善駕駛員的工作條件。Because uav is smaller and lighter than normal plane, the miniature aerial rs system is easily effected by wind, its " stabilities of position and stance are not good. because the load of uav is so finite, the large professional aerial photogrammetry camera can not be installed
微型無人機遙感由於受到無人機平臺體積小、重量輕、任務載荷有限等因素的制約,在飛行作業中傳感器位置和姿態受氣流影響大、穩定性差,而且目前是非專業攝影機成像,這些都大大增加了其影像幾何糾正處理的復雜性。Mesoscale model simulations have been performed of a severe thunderstorm that occurred on 22 - 23 august 2001 in huabei area in china. combing with satellite, doppler radar images and general weather observations, the evolution mechanism of the severe thunderstorm is analysed with emphasis on the orographic effect of taihang mountain
將模擬的雲、風、壓場和降水與實況資料進行對比檢驗,在控制模擬效果較為理想的情況下,結合衛星、 doppler雷達觀測和常規天氣資料,對整個對流風暴的發展演變過程進行分析,並著重對強對流風暴發生演變的熱力、動力機制以及重力波特徵進行了研究。Finally, the mechanism for the effect of the updraft restraint of the hailstorm on micro - physical processes is analyzed
最後,文中還分析了人工抑制上升氣流影響雲中冰雹形成的微物理機制。Kzl series air clean filter to enter empty to is it stand to press since, the compressor and air conditioner imprison the wind system, blast furnace air - introduced machine of steel plant, gas turbine, air making oxygen raw materials air compressor filter, strain and contain a large number of dust except that among them, prevent from in dust particle long - time adjustment air current sports, to operated equipment above blade, impeller, flow dish and part lead to the fact the harm
Kzl系列空氣自潔過濾裝置kzl系列空氣自潔過濾裝置是對進入空壓站壓縮機及空調關風系統,鋼鐵廠高爐引風機燃氣輪機制氧原料空壓機的空氣進行過濾,濾除其中含有大量塵埃,避免灰塵粒子在長時間的調整氣流運動中,對以上運行設備的葉片葉輪流道及部件將造成損害。This thesis introduces the working principle, craftwork requirement, modeling process, control strategies and the realization of lf refining furnance bottom blowing argon control system. through the study and analysis of bottom blowing argon process control system, the thesis discusses the mean neural network model of controlled object and the mathematical models of the exectors, pwm adjustable pressure controller and pcm adjustable flux controller according to the relevant liquid knowledge and relevant data, including design data, test data and running data. to begin with the craftwork reguirement of bottom blowing argon and the actual instance of the control system, it presents the strategies of fuzzy parameters self - adaptive pid control used in pressure difference inner loop and fuzzy plus pi compound control used in flux outer loop which are based on the above modeling in order to carry out the accurate control of argon flux
本文介紹了lf精煉爐底吹氬過程式控制制系統的工作原理、工藝要求、建模過程、控制策略以及控制系統的實現。通過對精煉爐底吹氬過程式控制制系統進行研究與分析,並根據流體力學的有關知識以及有關數據(其中包括設計數據、試驗數據和運行數據) ,建立起了被控對象的平均神經網路模型和執行機構(即pwm調壓器和pcm調流器)的數學模型。在此模型的基礎上,從底吹氬工藝要求和控制系統的實際情況出發,提出了壓差內環模糊參數自適應pid控制策略和流量外環模糊pi復合控制策略,以實現氬氣流量的精確控制。It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency
對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究,實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中,並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此,通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。The control and mitigation measures cover mechanical ventilation, filtration, differential pressure control, directional airflow control, local exhaust ventilation, and ultraviolet germicidal irradiation ( uvgi ) disinfection
控制和降低污染物的方法有控制機械通風的量,過濾法,控制壓力差,控制氣流方向,增加局部排器裝置及利用紫外殺菌光來消毒。Principal conclusions were drawn as the following : the non compatibility of pressure or velocity of the gas on both sides of the contact surface is the cause of the formation of shock wave ; the heating effect of reflective shock wave to driving gas during charging or exhausting process is the internal mechanism of peak oscillating effect, and all the factors that influence the formation and the running of the shock wave will influence the peak oscillating frequency, cooling effect
主要結論如下:熱分離機內激波形成的原因是射氣瞬間接觸面兩側壓力和速度不相容;峰值振蕩效應的內在機制為反射激波對充氣階段的驅動氣或低溫排氣的加熱,凡是影響激波形成及運動的因素都將對峰值振蕩頻率、冷效應及熱效應產生影響;當充、排氣時間比為0 . 1763時,最佳射流激勵頻率出現在高階峰值振蕩頻率上。It was well known that the main process of precipitation formation was collecting cloud water in the warm area and ice phase particles melting in the cold area. positive vertical velocity existed between 700hpa and 500hpa in the warm area and near surface in the cold area. wind convergence existed at the height of 700hpa, and divergence existed above and below the height of 700hpa
通過對降水雲系的綜合研究,建立了河南省春季層狀雲降水概念模型:暖區降水主要通過雲水碰並形成,冷區降水機制以冰粒子融化等冷雲過程為主;暖區700一50ohpa通常有上升氣流,冷區上升氣流分佈在近地面附近: 700沖a存在風場的輻合,其上下則主要是輻散區;水汽主要集中在7o0hpa高度上,暖區水汽來自南、東南方向,冷區水汽以西南輸送為主;暖區位勢不穩定分佈在o 。Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元,採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用,針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術,同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標,最後給出了一個整個傳送鏈路的功率預算。A variety of mechanical surfaces have been employed for deflecting the exhaust jets of solid-propellant rockets.
人們已經用過各種類型的機械控制面來偏轉固體推進劑火箭的排氣流。According to the re - analyses on pollen assemblages and archeological evidences in the site and related documents, this paper reconstructs the sequence of fossil pollen - pollen - vegetation - paleoclimate during the prehistoric period, emphatically discussing environment changes, the space - time distributed law on archaeological sites, the origin of culture fault and formation mechanism
本文根據孢粉學和考古學證據,結合相關文獻資料,從古地理學、考古學、歷史學等綜合研究的角度,重建史前時期化石花粉? ?孢粉植被? ?古氣候環境的演變序列,著重探討太湖流域新石器時期的環境變遷與古文化遺址的時空分佈規律、文化斷層的成因及其機制。In 2001 the ministry of economic affairs embarked on its five - year plan to strengthen the innovate and incubation functions of small and medium enterprises ( project period from 2000 to 2005 ). the project charts out an incubation mechanism for regional technology clusters according to the needs of local businesses, calls for annual incubation conferences and activities both locally and abroad, supports strategic alliance between incubation centers and businesses, expands regional training of professional managers and young professionals, and conducts intense exhibitions for incubation businesses and reviews the performance of incubation project implementation
為進一步強化育成中心之功能,充分釋放育成中心的創業與創新輔導能量,經濟部更於九十一年度規劃多項創業支援輔導工作,如辦理新創事業公開賽及技術交流博覽會、開辦創業創新養成學苑,設置創業諮詢服務窗口等,希望配合現有的育成中心運作機制,加強中小企業研發創新及開發新事業的輔導功能,積極建構中小企業創業與創新育成平臺,為當前的經濟景氣注入新的活力。To make the incubation centers even more functional, so that their entrepreneurial and innovative guidance could come into full play, the moea planned a series of business start - up supportive guidance activities in 2002. these included contests for start - up businesses, technology exchange expos, classes on innovation and business start ups, and consultancy services on how to start a business, etc. it was hoped that, combined with the existing incubation center mechanism, these efforts could beef up guidance work for smes in regard to the challenges of their initial start period and establish a sound incubation platform with the ultimate goal being to inject new vigor into the present economic climate
為進一步強化育成中心之功能,充分釋放育成中心的創業與創新輔導能量,經濟部更於九十一年度規劃多項創業支援輔導工作,如辦理新創事業公開賽及技術交流博覽會開辦創業創新養成學苑,設置創業諮詢服務窗口等,希望配合現有的育成中心運作機制,加強中小企業研發創新及開發新事業的輔導功能,積極建構中小企業創業與創新育成平臺,為當前的經濟景氣注入新的活力。Next, we will apply this new versioned clm to a river basin at xixian station in the huaihe river basin. xixian station is a hydrological observation station, which covers 10190 km2. we use 11 - year from janu - ary 1980 to december 1990 observed meteorological data and runoff data including surface runoff and subsurface runoff to validate the reliability of this new subsurface model, and furthermore a quasi - steady subsurface runoff model 13, 31 bqas and dsitqsdt is also applied to this region to perform a comparison simulation
利用包含上述地下徑流機制的clm應用到實際的流域中,選取淮河流域的息縣站所控制的流域作為實驗區域圖4 .息縣站是淮河流域的一個水文觀測站,控制面積為10190 km2 ,利用該區域11年1980年1月到1990年12月的降水氣溫等氣象資料以及徑流包括地表徑流和地下徑流資料來驗證所建立的模型的可靠性The experiments show an room temperature in the course of reactive sputtering conduces to restraining the surface reaction between hf02 and si layer ; 2. we studied different surface progress. comparable with conventional method, the surface with nh4f cleaning step have superior thermal stability with hfo2, nh4f cleaning step is introduced can reduces leakage current and eot ; 3
柵泄漏電流的減小可歸于氧空位缺陷的減小,即高的濺射氧氣氛和氧氣氛退火有助於減小hfo _ 2柵介質中的氧空位缺陷; 4 )研究了反應濺射制備的hfo _ 2柵介質漏電流機制及其silc效應。分享友人