نتایج جستجو برای: magnetic noise

تعداد نتایج: 525301  

Journal: :Applied Physics Letters 2007

The true MR signal intensity extracted from noisy MR magnitude images is biased with the Rician noise caused by noise rectification in the magnitude calculation for low intensity pixels. This noise is more problematic when a quantitative analysis is performed based on the magnitude images with low SNR(<3.0). In such cases, the received signal for both the real and imaginary components will fluc...

A. Ali Ghanbari, E. Kazemi, F. Zal, H. Mozdarani, S. Haghdoost, S. Sharif-Zadeh, S.M.J. Mortazavi, Z. Mostafavi-pour,

Background: Induction of cellular response after exposure to electromagnetic fields is limited to coherent fields. An incoherent noise field is supposed to suppress the bioeffects of regular RF electromagnetic fields. The purpose of this study was to investigate the effect of GSM mobile phone-induced radiofrequency (RF) on the induction of oxidative stress in SP2/0 cell line. Materials and Meth...

Journal: :Physical Review Letters 2010

Journal: :The Journal of the Acoustical Society of America 1956

Journal: :EPL 2021

We relate the anomalous noise found experimentally in spin ice to subdiffusion of magnetic monopoles. Because monopoles are emergent particles, they do not move a structureless vacuum. Rather, underlying ensemble filters thermal white noise, leading non-trivial coevolution. Thus, can be considered as random walkers under effect stochastic forces only long those trivially white, but instead subs...

ژورنال: فیزیک زمین و فضا 2020

Computed Magnetic Gradient Tensor (CMGT) includes the first derivatives of three components of magnetic field of a body. At the eigenvector analysis of Gravity Gradient Tensors (GGT) for a line of poles and point pole, the eigenvectors of the largest eigenvalues (first eigenvectors) point precisely toward the Center of Mass (COM) of a body. However, due to the nature of the magnetic field, it i...

2008
Radu S. Curiac Sumit Singhal

Noise in large high voltage induction motors (500Hp 18000Hp) may be airborne or magnetic in nature. Usually, large high voltage induction motors are custom built and tailored to meet customer’s demand. Since every motor is unique in its design, it is imperative to predict accurately the magnetic noise generation during design phase, this way avoiding expensive rework cost and not loosing the cu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

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