輻射殼 的英文怎麼說
中文拼音 [fúshèké]
輻射殼
英文
radiative envelope-
Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box
綜合介紹了邊界元法在聲輻射問題上的理論及應用;並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法,並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序,並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據,實現聲音的可聽化,隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。The activation effect of zn2 + modification, including enhancement of emission intensity, slowing of luminescence decay and increasing of quantum yields, results from the formation of zns shell outside the nanoparticles, which is passivating the surface of nanoparticles, eliminating the surface quenching centers, so as to block the nonradiative transition pathways through these kind of quenching centers
Zn ~ ( 2 + )表面修飾在納米顆粒表面形成了zns殼層,鈍化了納米顆粒的表面,消除了表面猝滅中心,阻塞了通過表面猝滅中心進行無輻射躍遷的通道,從而使得發光強度增加,衰減變慢,量子效率提高。It is designed according to electrical stove or microwave oven request. heating pipe adopts high temperature resistance mgo powder as the insulation medium and the stainless steel case is passed oxidation deal through the advanced web band protection oven 1050c in order to become the a special oxidation layer and improve the high temperature oxidation and bittern corrosive performance of the heating pipe. the heating tube has high power density and strong heat radion. this product with good safe performance can work normally after 3000hrs life test
加熱管選用耐高溫氧化鎂作絕緣介質,不銹鋼外殼經過先進的網帶氣體保護爐1050的氧化處理,形成一種特殊的氧化層,提高電熱管的抗高溫氧化及鹽鹵的腐蝕性能。電熱管的功率密度較高,熱輻射能力強。產品經長達3000h的壽命試驗后,仍能正常工作,安全性能好。This paper introduces the latest progress of high level radioactive waste disposal programs in the world, and discusses the key scientific issues as follows : ( 1 ) the precise prediction of the evolution of a repository site ; ( 2 ) the characteristics of deep geological environment ; ( 3 ) the behaviour of deep rock mass, groundwater and engineering material under coupled conditions ( intermediate to high temperatures, geostress, hydraulic, chemical, biological and radiation process, etc ) ; ( 4 ) the geochemical behaviour of transuranic radionuclides with low concentration and its movement with groundwater : and ( 5 ) the safety assessment of disposal system
在介紹國內外最新研究進展的基礎上,重點討論高放廢物地質處置的若干關鍵科學問題:處置庫場址地質演化的精確預測、深部地質環境特徵、多場耦合條件下(中(高)溫、地殼應力、水力作用、化學作用、生物作用和輻射作用等)深部巖體、地下水和工程材料的行為、低濃度超鈾放射性核素的地球化學行為與隨地下水遷移行為及處置系統的安全評價。Although there was a partial melting of the reactor core at tmi - 2, the radiological release was mainly confined within the containment building and the release to the environment is minimal and insignificant
雖然三哩島反應堆部分堆芯已經熔化,但輻射泄漏的范圍主要局限於安全殼廠房內,對環境的影響極其輕微。Oceans, land masses. no tectonic instability or radiation
海洋,陸地…沒有地殼震動和輻射Then, the radiation efficiency at low frequency and frequency response at high frequency in fluid are computed respectively by both sysnoise software and autosea software
然後結合sysnoise軟體和autosea軟體分別計算殼體在流場中聲輻射效率在低頻段和高頻段時的頻率響應。Because the photospheric temperature of carbon stars are less than 3000k and the temperature of rich - dust envelope formed by the mass loss is lower, and therefore most of the energy from carbon stars are radiated between 1 to 60um range, in which the vibrational and ro - vibrational bands of many molecules also lies, the study of infrared spectra in this wavelength range is very important to reveal chemical compositions, dust formation process, the atmospheric structure and evolutionary status of stars
碳星光球的有效溫度不超過3000k ,同時較大的質量損失率形成了富碳的塵埃殼層,以致於它的輻射能量主要集中在1 ? 60 m的紅外波段上,並且許多分子的轉動振動能譜也集中在紅外,因此在紅外波段的研究對揭示碳星化學成份及其分佈、塵埃形成過程、恆星大氣結構和演化狀態都有十分重要的意義。Preparation of low - molecular chitosan by combined technologies of microwave radiation and rare earth coordinating control
微波輻射與稀土配位控制組合技術制備低聚殼聚糖By using of effective mobility power flow method, vibration level and radiated power level of a element cylindrical shell are studied
利用有效導納功率流法研究了基本圓柱殼體的表面振級和聲輻射功率級。The energy level structures of the 4d core excited configuration 4d 5s25p5, final radiative configuration 4d105s25p4 and final auger configurations 4d105s25p3 and 4d105s15p4 of csv ion and all possible decay dynamics processes related to these configurations are all determined by mcdf method. we also compared the present results of radiative transition, oscillator strength and the line width with the results obtained by experimental spectra and the quasi - relativistic configuration interaction method and got a good agreement. we also make prediction for some dominant features of the auger electron spectrum emitted by the auger decay process of the 4d95s25p6 core excited states
論文第三章中詳細的介紹了cs離子的4d內殼層電子激發組態4d ~ 95s ~ 25p ~ 5 、輻射末態4d ~ ( 10 ) 5s ~ 25p ~ 4及auger末態4d ~ ( 10 ) 5s ~ 25p ~ 3和4d ~ ( 10 ) 5s5p ~ 4的能級結構及各種可能的輻射和auger衰變過程,獲得了與已有的實驗結果和相關的半經驗準相對論組態相互作用計算結果相符的輻射躍遷能、振子強度以及線寬,預言了4d ~ 95s ~ 25p ~ 5態的以auger衰變為主的auger電子譜的特性。Matlab procedure is coded to compute the far - field sound pressure levels of the shell excited by radial point force. the influences of modal truncation, stringers, bulkheads and damping on the shell ' s far - field sound pressure are analyzed, laying down the basis for accurate analysis of the sound radiation from fluid - loaded reinforced double cylindrical shells
本文用matlab編製程序求解了單層殼在徑向激勵力作用下的遠場聲壓級,分析了模態截斷數、縱骨、艙壁板、結構阻尼等因素對殼體遠場輻射聲壓的影響,為準確計算加筋雙層殼在水下振動和聲輻射特性奠定了基礎。In this paper, the effect of disc muffler on vibration and sound radiation of worm shell is discussed
摘要探討了圓盤型進氣消聲器對蝸殼振動和聲輻射的影響。Study on the degradability of chitosan under microwave irradiation
微波輻射下殼聚糖降解性能的研究Vibroacoustic analysis of a finite stiffened - cylindrical shell closed by circular plates
兩端用圓板封口的環肋柱殼振動聲輻射性能分析Concrete radiation shielding for nuclear power plants, guidelines on the nuclear analysis and design of
核動力廠的混凝土輻射屏蔽外殼的核分析和設計導則In addition, the sound radiation from fluid - loaded reinforced double cylindrical shells, periodically connected by slabs, is formulated
最後,本文還導出了由實肋板連接的加筋雙層殼在水下振動和聲輻射的理論公式。Enclosures for protection against ionizing radiation. lead shielding units for 150 mm, 200 mm and 250 mm thick walls. part 1 : chevron units of 150 mm and 200 mm thickness
電離輻射防護殼.厚度為150mm , 200mm和250mm的鉛防護殼.第1部分:厚度為150mm和200mm的波紋式防護殼Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range
本論文從便於工程實際應用出發,對使用有限元分析軟體進行二次開發以方便結構振動分析及改進結構設計的方法和過程進行了研究,在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析,在指定頻率區間,對結構以振動輻射聲功率級為目標函數進行了部分參數的結構優化設計,與此同時,為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作,利用ansys提供的參數化設計語言apdl ( ansysparametricdesignlanguage )結合vc對有限元軟體ansys進行了二次開發,形成了一體化的水下圓柱殼體結構聲學設計軟體。In this paper, a study has been made of analyzing the acoustics and vibration characters of the plate & shell and stiffened plate & shell structures with fea ( finite element analysis ) and basic theories of structural vibration and acoustic radiation, which, to some extent, helps the nonprofessional people understand the acoustical characters of these structures through acoustical means
本文利用有限元方法,結合結構振動與聲輻射基本原理,對板殼、加筋板殼結構的聲?振特性進行了分析,利用信號處理技術實現結構聲?振特性的可聽化模擬。在一定程度上,使非專業人士也可以通過聲學手段了解結構的聲學特性。分享友人