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Featured Products声波团聚,acoustic agglomeration,音标,读音,翻译,英文例句,英语词典
说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
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1)&&acoustic agglomeration
Numerical simulation of ultrafine particle acoustic agglomeration ba
基于分形的超细颗粒声波团聚数值模拟
Acoustic Agglomeration of Coal Combustion Inhalable P
燃煤可吸入颗粒物声波团聚
Simulation and analysis of collision efficiency in acoustic agglomeration
小颗粒声波团聚中碰撞效率的计算及影响分析
2)&&sound wave focusing
3)&&sonic agglomeration
4)&&focused ultrasound
聚焦超声波
Theoretical and experimental research on the second harmonic of focused ultrasound in laye
聚焦超声波在层状生物媒质中的二次谐波声场的理论与实验研究
5)&&ultrasonic polymerization
超声波聚合
6)&&ultrasonic-assisted polymerization
超声波辅助聚合
During the process of ultrasonic-assisted polymerization of VAC system, the effects of initiator concentration and rea.
对比了醋酸乙烯(VAC)在传统聚合中和超声波辅助聚合中的单体转化率和乳液粒径分布的差别。
补充资料：磁团聚分选
磁团聚分选
magnetic agglomeration separation
e一tuonju fenxuan磁团聚分选(magnetie agglomeration sepa-ration)细粒强磁性矿物在低弱磁场中受磁力和剪切力作用，选择性地形成磁团聚体与脉石分离的磁选方法。所用低弱磁场的磁感应强度为5一25mT，比通常预磁磁感应强度50mT和弱磁场磁选机磁感应强度loomT低得多。磁场和剪切力场的作用仅产生磁团聚，团聚体在磁场和重力场综合作用下沉降速度加大，从而提高了与非团聚的脉石的分离效果。磁团聚分选法分选精度高，用于磁铁矿的精选时，能获得超级精矿。
磁团聚分选设备由磁系和切向给水装置或搅拌装置构成(见图)。磁系由内外两组同心筒形磁极组成，可以降低磁场不均匀性。磁极由铁氧体永磁块构成，磁系吸_
磁团聚分选设备示意图
l一提升杆;2一给矿箱门一给矿管;4一溢流槽;
5一内磁系.6一外磁系刃一进水管邝一精矿阀沿轴向是断续的，使强磁性矿石在沉降过程中处于团聚一分散一团聚的动态过程，有利于选择性团聚和排除脉石，提高精矿品位及分选效率。沿切向给入上升水流，是为了产生剪切力，加强水力清洗作用。有些设备安有搅拌叶轮，其作用与切向水流相同。根据磁力和流体剪切力的比值及两种力的方向，来控制强磁性矿粒的团聚和分散状态，达到磁团聚的高度选择性。在分选区保持矿浆的适当浓度，以形成床层和发生干涉沉降作用。(参见彩图插页第12页)
〔落多l润、
说明：补充资料仅用于学习参考，请勿用于其它任何用途。AIAA Papers Volume issue 2002_文档下载
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& AIAA Papers Volume issue 2002
AIAA Papers Volume issue 2002
AERO-VIBRO-ACOUSTICS: PROBLEM STATEMENT AND METHODS FOR SIMULATION-BASED
DESIGN SOLUTION
8th AIAA/CEAS Aeroacoustics Conference & Exhibit&br&
&font color=&green&&Fire17-19 June 2002, Breckenridge, Colorado
AERO-VIBRO-ACOUSTICS: PROBLEM STATEMENT AND METHODS FOR SIMULATION-BASED
DESIGN SOLUTION
P.G. Bremner, Vibro-Acoustic Sciences, Inc, San Diego, CA
J.F. Wilby, Wilby Associates, Calabasas, CA
This paper defines the field of &aero-vibro-acoustics& as the transmission of &noise& through a structure when the exterior source is specifically an aerodynamic or hydrodynamic environment. Important applications of current interest are identified and discussed briefly. They include a wide range of situations including low speed, separated flow associated with &wind noise& in automobiles, aircraft interior noise from turbulent boundary layer excitation, and launch vehicle vibration and fairing interior noise due to transonic and supersonic boundary layer and shockwave excitation. Three methods are introduced to assist in the solution of aero-vibro-acoustic problems. The methods are (1) statistical energy analysis (SEA), (2) experimental characterization of flow-induced noise sources from wind tunnel or other tests, and (3) computational aeroacoustics (CAA).
Current technical problems are identified and potential solutions discussed.
It is suggested that all three methods need to be applied in an integrated manner to address aero-vibro-acoustic design for applications such as wind noise inside automobiles.
The field of &aero-vibro-acoustics& is defined as the transmission of noise through a structure, when the exterior source is an aerodynamic or hydrodynamic environment. This paper focuses on physics-based simulation methods that facilitate engineering design for control of interior noise. The design problem has two parts. The first part is simulation of the exterior flow, as influenced by design parameters such as aerodynamic shape and flow control. The second part is simulation of the transmission of exterior surface pressures to an interior sound field, as influenced by shape and physical properties of the intervening structure. In particular, this paper uses the sound transmission physics of the second part to better define the requirements on wind tunnel testing and
Copyright © 2002 by Vibro-Acoustic Sciences, Inc. Published by the American Institute of Aeronautics and Astronautics, Inc, with permission.
computational aero-acoustics, which are currently being used for the first part of the problem.
Aerodynamic and hydrodynamic noise transmission has elements in common with the room acoustics problem of “sound transmission loss” in which the exterior source is assumed to be a diffuse acoustic field. A good description is provided by Fahy1. One important observation is that while the structure’s vibration response to acoustical excitation is dominated by its resonant modes, low frequency sound transmission to the interior is controlled by the acoustically “forced” response of non-resonant modes.
Mathur & Bremner2 have shown that airplane interior noise transmission can be predicted for high speed boundary layer noise excitation. An empirical model of the boundary layer surface pressure cross spectrum is convolved with each structural mode to estimate the resonant vibration response. The resulting sound radiation to the interior was based on room acoustics theory1. At the cruise conditions (Mach 0.8), the high levels of aerodynamic excitation at the convection wavenumber couple well with the resonant modes of the structure3 so that non-resonant transmission could be neglected. Neither resonant nor non-resonant response couples well with the interior acoustics.
Figure 1. Wavenumber - frequency (k-Z) diagram for surface pressure spectrum )(k,Z) of a sub- showing convective kc and acoustic k0 energy components and typical resonance wavenumber for a thin panel.
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AIAA 2002-5011 AIAA 2002... 12页 免费 AIAA Paper 2002-4977 6页 1...While the reduction of the noise levels is an important issue, the cavity...AIAA Paper 2002-4977 6页 1财富值 AIAA-2002-页 2财富值 ... what has to change in the architecture, problem formulation, or approach?...Tetrahedron Letters (2014)Volume 55, Issue 12, Pages 1998C2002_材料科学_工程科技_专业资料。Tetrahedron Letters 55 (C2002 Contents lists ...AIAA-2002-218-865 14页 免费 AIAA 2002-5011 AIAA 20... 12页 免费 AIAA Paper 2002-4977 6页 1下载券 AIAA-2002-页 1下载券 (AIAA)...Journal_of_Nanoscience_and_Nanotechnology_Volume_2_issue_1_2002_[doi_10.1166_jnn.0a]_医药卫生_专业资料。Journal_of_Nanoscience_and_...AIAA Paper 2002-4977 6页 1财富值 AIAA-2002-页 2财富值 AIAA-2002-T1-12-289 暂无评价 17页 免费 AIAA数据库使用培训 48页 免费 AIAA数据...Foundations of Information Science Selected papers from FIS 2002. Entropy ... The accompanying papers in the first issue of Entropy, volume 5, 2003 ...SEC NEWS DIGEST Issue 2002-159 August 16 - The SECSEC NEWS DIGEST ...(BR. 06) S-3 GOODRICH CORP, 4 COLISEUM CENTRE, 2730 WEST TYVOLA ROAD...AIAA会议日程表_兵器/核科学_工程科技_专业资料。DATE MEETING (Issue of AIAA Bulletin in which program appears) LOCATION CALL FOR PAPERS (Bu ...FOUNDED BY DANIEL ARANY IN 1894 Volume 1, Number 1. Appeared 2 times ...Problem Solving Competition: 2002/2003 . . . . . . . . New exercises ...sonic logging
[油气] 声波测井
机械英语词汇564 ... 生物转盘法biologicalrotarymethod 声波测井soniclogging 声波干燥器sound-wavedryer ...
基于315个网页-
音波检层法
在线英语词典,英文翻译,科技词典,专业词典,在线词... ... 音波探测仪：Acoustic sounder 音波检层法：Sonic logging 音波检层：Acoustic logging ...
基于12个网页-
引起听觉的振动波测井
微球形聚焦测井!测井专业术语 ... 电法测井 electrical logging 引起听觉的振动波测井 acoustic logging；sonic logging 放射性测井radioactive logging ...
基于8个网页-
相控线阵声波辐射的模拟计算 _ 发布毕业论文,下载资料,提供论文共享的最佳网站,永久域名： - 毕业论文网 关键词：相控线阵;指向性;声波辐射 [gap=635]Keyword: sonic logging; Pased Adirectional
基于6个网页-
声波法测井
长源距声波测井
声波测井仪器
声波测井仪
长源距声波测井
声波测井下井仪电子线路部分
SBT测井仪器
声波测井探头
声波测井信号
更多收起网络短语
- 引用次数：5
参考来源 -
声波速度测井
&2,447,543篇论文数据，部分数据来源于
Sonic logging
Sonic logging is a well logging tool that provides a formation’s interval transit time, designated as {\Delta} t, which is a measure of a formation’s capacity to transmit seismic waves.
Geologically, this capacity varies with lithology and rock textures, most notably decreasing with an increasing effective porosity.
以上来源于:
This is cardinal reason of "skip" on high-resolution sonic logging traces.
这是目前高分辨率声波测井曲线“跳跃”的根本原因。
In borehole sonic logging, these may be the shear, flexural and Stoneley waves.
在井眼声波测井中，这些波是横波、弯曲波、斯通利波。
Multipole array sonic logging tools have widely been employed in Chinese oilfields in recent years.
几年来，多极组合声波测井仪已广泛应用于中国各油田。
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