radiation pressure 中文意思是什麼
radiation pressure
解釋
輻射壓力-
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。 -
Design should recognize that burner flame length shortens and intensity of radiation increases as pressure increases.
設計時必須認識到當壓力增加時火焰的長度縮短而輻射強度增加。 -
The major work is as follows : solution of two dimensional radiation or diffraction fluid field. this thesis extends multipole expansion method to adapt to disturbed fluid fields of 2d floating bodies with asymmetric forms, which is applied with symmetric forms originally. and given the solution of potential velocity and hydrodynamic pressure of radiation and diffraction fluid fields, which is incited by a 2d arbitrary form, actual application field of the multipole expansion method has been enlarged
關於二維擾動流場的求解：將通常僅適宜求解具有對稱形狀二維物體擾動流場的多極展開法（保角變換方法）擴展至非對稱形狀二維物體，給出了任意形狀二維物體的輻射和繞射流場的速度勢及水動壓力的頻域解，進一步擴大了多極展開法的實際應用范圍。 -
This method applies the extended strip theory to establish the nonlinear ship motion equations in regular head seas, obtains stable time course by resolving in time domain, and then pressure vectors will be available. the pressure includes static pressure, incident waves pressure, diffraction pressure, radiation pressure, and wave impact pressure, and changed with instantaneous draft of each intersection
該方法應用擴展的切片理論建立迎浪規則波中船舶非線性運動方程，通過時域步進求解獲得船舶剛體運動的穩定時歷，進而給出與船體各橫剖面瞬時吃水相對應的靜水壓力變化、入射波壓力、繞射壓力、輻射壓力和波浪沖擊壓力諸分量。 -
First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。 -
Robert c gauthier, mike ashman, athanasios frangioudakis, hawie mende and shanjun ma, radiation - pressure - based cylindrically shaped microactuator capable of smooth, continuous, reversible and stepped rotation, applied optics, vol. 38, no. 22 ( 1999 ) 4850 ? 4860
馬善鈞，徐學翔，空間飛行體與壓縮區內等離子體非穩態相互作用的數值模擬，空間科學學報，第21卷，第4期， （ 2001 ） 305 - - 310 。 -
In this paper, three unique models were designed to research atom diffusion at interface, contacting line and joining point under bpec heating and compare with it under radiation heating in order to find out if bpec speed atom diffusion. the first model was aimed to research atom diffusion at interface under bpec heating. experiment condition of bpec diffusion welding sheet cu and ni : direct diffusion welding, at a pressure of l0mpa, welded at 750 ~ 900, with heat rate of 200 ~ 400 / min for 10mm, on / off of 6 / l ~ 48 / 8, with die or not, vacuum of 6pa
本文設計出三種樣品預構件，研究脈沖大電流加熱條件下片狀材料、線狀材料和球形顆粒之間的原子擴散過程，弄清脈沖大電流加熱條件下原子擴散與一般燒結和焊接過程中原子擴散的區別，以證實特殊的電場和磁場是否對原子的擴散有推動作用，揭示脈沖大電流加熱條件下原子的擴散過程，探索脈沖大電流熱加工技術快速高效的原因。 -
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。 -
Experts had not bothered to study closer - in data in detail because they believed that radiation pressure of the sun and the many flight maneuvers would make it difficult to measure the anomaly
專家們不曾詳盡的研究較近距離內的數據，因為他們認為太陽的輻射壓與許多太空飛行任務會使異常現象不好量測。 -
Dust tails are created when small particles from a comet are swept backward by the sun ' s radiation pressure
來自彗星的微小粒子被太陽輻射壓向後推斥，形成塵埃尾。 -
A high - pressure mercury lamp in which the light is produced partly by the mercury vapor and partly by a layer of fluorescent material on the inner surface of the outer bulb excited by the ultraviolet radiation of the discharge - for example : hpl - n, hplr - n lamps
一種高壓汞燈，其中一部分光由汞蒸氣輻出，另一部分由放電輻出的紫外線激發后的熒光材料塗層發射得到，該熒光材料塗層位於外泡殼的內表面。 -
With a careful theoretical analysis various physical parameters such as the gas density, temperature, and pressure, and the ultraviolet and ionizing radiation fluxes can be derived.
通過仔細的理論分析，可以推導出如氣體密度、溫度和壓力等各種物理參量，以及紫外輻射和電離輻射的流量。 -
The result shows that the solar radiation pressure moments play a mainly part. based on kalman filtering, three kinds of attitude determination algorithms were studied using the attitude sensor now available on the explorer : the first based on digital solar sensor ( dss ) and gyroscope when the star sensor is not available ; another based on dss, high - gain antenna ( hga ) and gyroscope when the explorer is in the earth - safe mode ; the third based on star sensor combined with gyroscope when the explorer is in the normal mode
針對配置了典型測量敏感器的深空探測器，基於擴展kalman濾波給出了其姿態確定的方法:針對星敏感器不可用情形，給出了使用太陽敏感器和速率陀螺定姿的濾波器演算法;針對安全模式下的對地穩定定向情形，給出了太陽敏感器和高增益天線融合速率陀螺信息的定姿演算法;針對正常巡航模式給出星敏感器和速率陀螺聯合定姿演算法。 -
It is very difficult to analyze flame radiation in the cylinder of a diesel engine by theoretical method since flame radiation is a function of many parameters, such as the combustion process, the geometrical description of the chamber, the soot formation and oxidation processes, the soot radiant temperature and soot absorption coefficient. the radiant property of the flame in a cylinder is dependent on the combustion process. but the thermodynamic state of real engine cycles can be analyzed from the pressure - volume diagrams in the cylinder. thus a new thermodynamic computational model is set up for the flame radiation in the cylinder of a diesel engine based on the indirect relationship between the flame radiation and the pressure - volume diagram of the combustion process in this paper. the flame radiant heat flux in the cylinder of a di diesel engine is calculated with the variation of crank angle by this model. compared with measured values, the result of the computational values shows the model is available to represent the effects of flame radiation
柴油機缸內的火焰輻射受諸多因素的影響，用理論分析法來確定它是相當困難的，由於柴油機缸內火焰輻射特性依賴于缸內的燃燒過程，而燃燒過程中的實際熱力狀態又可用示功圖來分析，因此藉助於火焰輻射與缸內熱力參數之間的這種間接關系，建立了一種計算柴油機缸內火焰輻射傳熱的新模型，利用該模型對一臺直噴柴油機缸內火焰輻射熱流量隨曲軸轉角的變化情況進行了計算，將計算結果與實測結果進行了比較，表明該模型能較好預測缸內火焰輻射傳熱量。 -
Taking account of the perturbation of the earth ’ s shape, the gravitation of the sun and the moon, the radiation pressure from the sun light and atmosphere drag, a precise orbital dynamic model of spacecraft is established in the equatorial geocentric inertial coordinate system ( j2000 )
考慮了地球形狀攝動、日-月引力攝動、太陽輻射壓力和大氣阻力因素對飛行器的影響，在地心赤道慣性坐標系下建立了精確的軌道動力學模型。 -
Radiation pressure and directional pattern of flexural vibrating air - borne ultrasonic transducer
氣介式彎曲振動換能器的輻射聲壓及其指向特性 -
In 1988, a scientist p. w. milonni of new mexico claimed a new simple viewpoint about the casimir effect. he used the classically familiar concept radiation pressure to explain the casimir effect
1988年，墨西哥的一位科學家給出了casimir力一個非常簡單的更為直觀的物理解釋，即認為可以將casimir力看成是真空電磁場的輻射壓力。 -
Particles in the star move around rapidly due to high temperature creating a high gas pressure. together with the radiation pressure generated by the photons, they exert pressure pushing outward to balance gravity s inward pull. then, a star becomes stable and now enters the main sequence phase
恆星內部所產生的高溫，會令粒子急劇運動，產生向外的氣體壓力，再加上光子的輻射壓力抵消掉向內的引力，令恆星保持穩定，進入主序星階段。 -
Solar radiation pressure perturbation
太陽光壓攝動 -
Acoustic radiation pressure
聲輻射壓
分享友人