1) monopole
单极子源
1.
The time-domain formula suitable for subsonic arbitrary moving sound sources due to Farassat and the frequency-domain formula valid for subsonic rectilinear moving sound sources by Lockard are validated by the case of the sound radiation from a monopole in uniform mean flows Furthermore, the FW-H/CAA matching technique is applied to predict the forward sound propagation from a fan/.
首先验证了适于亚音任意运动声源的Farassat时域公式和适于亚音匀速直线运动声源的Lockard频域公式,采用均匀流中单极子源声辐射问题对两类公式进行了校核。
2) monopolar
单极
1.
Summary on the design,manufacture and running of a sample of ion-exchange membrane monopolar cell LD0.32;
LD0.32单极式离子膜电解槽样机的设计、制作及运行
2.
The Thermal Effect of Monopolar Electrosurgery on Different Tissues;
腹腔镜单极高频电手术在不同组织热效应的研究
3.
A Comparative Study of the Internal Environment Effect of Bipolar Versus Monopolar Transurethral Vaporization of the Prostate in Operation;
单极与双极前列腺汽化术对术中内环境影响的对比研究
3) monopole
“单极”
4) unipolar
单极
1.
[Objective]To estimate the clinical effects of total hip arthroplasty(THA),bipolar and unipolar hemiarthroplasty for the treatment of femoral neck fractures(FNF) in the elderly.
[目的]评价全髋关节置换术、双极与单极人工股骨头置换术治疗老年股骨颈骨折的临床疗效。
2.
Unipolar case :where w_0,V_0 ∈ H~1(Ω) ∩ L~∞(Ω), w_0 ≥ 0 in Ω(?) R~d, 1≤ d < +∞, v is the outer unit normal on Γ_N.
单极情形: δ~2Δw=w(h(w~2)-V) in Ω,w=w_0 on Γ_D,(?)w/(?)v=0 on Γ_N λ~2ΔV=w~2-C in Ω,V=V_0 on Γ_D,(?)V/(?)v=0 on Γ_N 这里w_0,V_0∈H~1(Ω)∩L~∞(Ω),w_0≥0 in Ω(?)R~d,1≤d<+∞,v是Γ_N上的单位外法向量。
5) Ion polarity ratio
单极系数
1.
The results showed that negative air ion concentrations increased gradually and ion polarity ratio decreased gradually from city center to suburb.
结果表明,从市中心向郊区空气负离子浓度逐渐增大,单极系数逐渐减小;有林地区空气负离子浓度明显高于无林地区,针叶林地区全年平均空气负离子浓度高于阔叶林地区,但春、夏季节则阔叶林地区高于针叶林地区;有瀑布和溪流等动态水的地方空气负离子浓度明显增加;室内空气负离子浓度低于室外,但绿色植物可使室内空气负离子浓度增加;一天中白天空气负离子平均浓度高于夜间,一年中夏季最高、冬季最
2.
Based on three years of observation on the spatio-temporal changes of negative air ion concentrations in Beijing, air quality was assessed using ion polarity ratio and air ion assessment index (CI).
根据北京地区3年的空气负离子浓度时空变化的实测资料,利用空气离子单极系数及安倍空气离子评价指数对北京地区空气质量进行了初步评价。
6) Monopole
单极天线
1.
Charateristic investigation of monopole antenna on a conducting plate using method of moments;
基于矩量法对导体板上单极天线特性研究
2.
In this paper,the radiation from a monopole on an elliptic cylinder is discussed by UTD for convex surfaces and two examples are given whose results are consistent with experimental data,which proves UTD to be available.
文中以单极天线为例应用UTD的曲面绕射理论对椭圆柱上天线的辐射特性进行了研究,给出了两个相关算例,结果与实际基本吻合。
3.
In the case of ground reflection, a monopole with finite diameter is studied by method of moment (MoM).
在考虑地面反射的条件下,利用矩量法(MoM)研究有限直径单极天线问题。
参考词条
补充资料:磁单极子
| 磁单极子 magnetic monopole 理论上预言的带单极性磁荷粒子。在经典电磁理论中,磁是由电流和变化的电场产生的,磁南极和磁北极总是同时存在的,不存在磁单极子。1931年P.A.M.狄拉克从分析量子系统波函数相位不确定性出发,得出磁单极子存在的条件,可用以说明电荷量子化这个理论上无法说明的事实。20世纪70年代以后建立起来的大统一理论以及早期宇宙的研究都要求存在磁单极子,磁单极子的质量重达1016吉电子伏特/库仑2(GeV/C2)。实验上探测磁单极子成为检验粒子物理大统一理论和天体物理宇宙演化理论的重要依据。曾经作过广泛的探查 ,而且每当粒子加速器开拓新能区或发现新的物质源(例如从月球上取来岩石)都要重新进行磁单极子的的搜索。1982年采用超导量子干涉器件磁强计探测到一起磁单极子的事例,但还不足以肯定其存在。 |
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