查询词典 resonance method

Non-Contact Magnetic Resonance Electrical Impedance Tomography (non-contact MREIT), which is the combination of Magnetic Induction Tomography and Magnetic Resonance Imaging, is a new functional imaging method.

中文摘要非接触磁共振电阻抗成像方法是一种把磁感应技术与磁共振成像相结合的新的成像方法。

In the past, the high frequency resonance technique is usually applied in the envelope detection for a vibration signal with amplitude modulation. When applying the Hilbert transform in the high frequency resonance technique for the envelope detection of vibration signals, the computing burden is very high. On the other hand, when applying the linear least squares analysis method, the computing burden is lower. When applying the envelope detection in the lowest vibration mode, an accelerometer with the low-pass filtering cutoff frequency at 4kHz should be choose.

在过去的研究方法中，振动讯号之振幅调变通常以高频解调分析法应用於包络讯号侦测，而高频解调方法应用希尔伯特转换的包络分析，所需要的计算量是非常的高，若以线性最小平方分析法应用於高频解调分析法中，则所需要的计算量较小，如果以最低模态来估测包络讯号时，可以适当的选取加速规来代替低通滤波器，而加速规的截止频带必须在4kHz左右。

Numerical Simulations of Flows in the Hartmann Resonance Tube and Ultra-Sonic Gas Atomization Nozzle;2. The gas flow in the Hartmann resonance tube was numerically investigated by the finite volume method based on the Roe solver.

采用基于Roe解法的有限体积法，对Hartmann共振管中的气体流场进行了数值模拟，研究了当喷嘴轴线处存在针型激励器的情况下流场的振动情况，数值计算的结果与理论和相关的实验结果符合得较好。

By means of the numerical methods, the root of the resonance frequency equation is solved, and by means of Ansys software and the finite element method, the torsional vibration mode of the thin ring is analyzed, and the academic value and the simulant value of the resonance frequency are compared.

利用数值方法，求出了共振频率的理论值；并利用Ansys软件，对薄圆环振子进行了有限元模拟，得到了其共振频率的模拟值。

The paper consists of dynamic equivalent of province S network, simulation analysis by simulation software EMTDC, comparison between the simulation result and the graph of fault recorder, applying rotating vector method and resonance theory to analysis fault process, finally having arrived at the fault mechanism of wire-break resonance and asynchronous-ly switching process.

内容包括：对S省电网的动态等值，用仿真软件EMTDC进行仿真分析，将仿真结果和故障录波图做比较，用旋转向量的方法和谐振理论分析事故过程，从而得出了机电相互作用引起变压器中性点击穿和断线谐振导致避雷器爆炸的事故机理。

This essay will remark on auto air-condition noise problems through studying expansion valve. The main reasons incurred noise are two, one is vibration, which is from big air bubble caused by the refrigerant flows through expansion valve. Another is resonance, which is from engineering working itself. So, the two methods for eliminating noise are found. On one hand, through increasing damp to weaken resonance. On another hand, through taking off air bubble to eliminate vibration. The essay presents method of solving noise through improving expansion valve and elaborate the disadvantages caused by these solvement.

本文从膨胀阀的角度去考虑解决汽车空调异响问题，认为产生异响的主要原因是制冷剂流经膨胀阀节流部时有大气泡存在引起振动与汽车发动机共振造成，从增加阻尼块来减振和分解大气泡来消除震动等两方面提出解决方法，并对此方法造成的不利方面也进行了阐述。

In order to study the primary resonance and primary parametric resonance of a rectangular deck plate subject to harmonic disturbances in temperature field, by applying elastic theory, a nonlinear dynamical equation in partial differential form for the plate is established first. Then the nonlinear vibration equation in ordinary differential form is obtained based on Galerkin's method.

为了研究温度场中桥面矩形薄板受简谐激励的主共振－主参数共振问题，应用弹性力学理论建立其动力学方程，应用Galerkin方法将其转化为非线性振动方程。

We calculated resonance spectrum and resonance mode profiles of the DQPC twin and triple-cavity by 3D finite-difference time-domain method.

利用三维有限时域差分法我们可以计算准光子晶体二重以及三重共振腔中的共振场图和模态图。

While calculating Sr spectrum by BSCR method we find: calculating the spectrum of Sr we can obtain pretty good results in low resonance energy if we use optimized β value of Ca directly, but it is not possible to obtain the ideal results in the part of high resonance energy spectrum.

我们使用BSCR方法计算Sr光谱时发现：将Ca的各open channel所对应的β值直接用在Sr的光谱计算时，在低能阶部分可得到相当错的成果，但是在高能阶时，则无法得到想的光谱。

Uses the biggest strength training method (80%～100% biggest strength) adding 30% biggest strength load training method; the load combination method to make the acclivity to lie pushes the barbell training, good in uses; the biggest strength training method to the upper limb shot fast strength training effect (80%～100% biggest strength) adding the unarmed quickest speed training method and the biggest strength training method (80%～100% biggest strength) adding 60% biggest strength shoulders the training method the load combination method.

用"最大力量训练(80％～100％最大力量)+30％最大力量负荷最快速度训练法"负荷组合方法做上斜卧推杠铃训练，对推铅球上肢快速力量的训练效果好于用"最大力量(训练80％～100％最大力量)+徒手最快速度训练法"与"最大力量训练(80％～1 00％最大力量)+60％最大力量负荷最快速度训练法"负荷组合方法。

There are two types of gold deposits in this area, namely altered rock type and quartz vein type.

本区金矿床包括两种类型：柴胡栏子金矿床为蚀变岩型金矿；莲花山和红花沟金矿床属石英脉型。

You were home and it was two weeks ago.

你回到了家里。当时是两周前。