نتایج جستجو برای: PD location

تعداد نتایج: 283399  

Journal: :medical journal of islamic republic of iran 0
mansour parvareshrizi department of neurosurgery, rasool-e-akram medical center, iran university of medical sciences and health services (iums), tehranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: asool-e-akram medical center babak alijani department of neurosurgery, rasool-e-akram medical center, iran university of medical sciences and health services (iums), tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasool-e-akram medical center, seyed-mohammad fereshtehnejad iran university of medical sciences and health services (iums), tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) sahar bakhti department of neurosurgery, rasool-e-akram medical center, iran university of medical sciences andhealth services (iums), tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasool-e-akram medical center,

abstract introduction: it is demonstrated that the degree of clinical improvement in parkinson's disease (pd) achieved by deep brain stimulation (dbs) is largely dependent on the accuracy of lead placement. in addition, individual variability in the situation of subthalamic nucleus (stn) is responsible for spatial inter-individual fluctuations of the real patient's target. objective: our study ...

A.A. Shayegani Akmal, Amir Mohammadirad Ramin Vakili,

Partial Discharge (PD) is the most important source of insulation degradation in power transformers. In order to prevent catastrophic failures in transformers, PDs need to be located as soon as possible so that maintenance measures can be taken in time. Due to the structural complexity of windings, locating the PD source inside a transformer winding is not a simple task. In this paper, the effi...

Babak Alijani, Mansour ParvareshRizi, Sahar Bakhti, Seyed-Mohammad Fereshtehnejad,

  Abstract   Introduction: It is demonstrated that the degree of clinical improvement in   Parkinson's disease (PD) achieved by deep brain stimulation (DBS) is largely dependent   on the accuracy of lead placement. In addition, individual variability in the   situation of subthalamic nucleus (STN) is responsible for spatial inter-individual   fluctuations of the real patient's target.   Objecti...

اکبری ازیرانی, اصغر, مذهب جعفری, علی ,

In this paper Multi conductor transmission line model (MTLM) was used for partial discharge (PD) localization in power transformers’ windings. The parameters of the model were computed considering practical issues of power transformer design. To decrease computational complexity of the model, two methods for calculation of model parameters were studied and the most suitable method was cho...

Journal: :medical journal of islamic republic of iran 0
mansour parvareshrizi department of neurosurgery, rasool-e-akram medical center, iran university of medical sciences and health services (iums), tehran babak alijani department of neurosurgery, rasool-e-akram medical center, iran university of medical sciences and health services (iums), tehran, iran. seyed-mohammad fereshtehnejad iran university of medical sciences and health services (iums), tehran, iran. sahar bakhti department of neurosurgery, rasool-e-akram medical center, iran university of medical sciences andhealth services (iums), tehran, iran.

abstract   introduction: it is demonstrated that the degree of clinical improvement in   parkinson's disease (pd) achieved by deep brain stimulation (dbs) is largely dependent   on the accuracy of lead placement. in addition, individual variability in the   situation of subthalamic nucleus (stn) is responsible for spatial inter-individual   fluctuations of the real patient's target.  ...

Journal: :Transactions on Electrical and Electronic Materials 2006

Journal: :Experimental neurology 2004
Marco Santello Lisa Muratori Andrew M Gordon

We examined the extent to which subjects with Parkinson's disease (PD) modulate normal fingertip forces during five-digit grasping based on the object's center of mass (CM). We also tested the effect of trial-to-trial predictability of CM location on the distribution of all fingertip forces relative to thumb force. Ten right-handed subjects with PD (OFF and ON medication) and 10 healthy age-mat...

2006
Chien-Yi Chen Cheng-Chi Tai Ju-Chu Hsieh Ching-Chau Su Jiann-Fuh Chen

In this paper, we compare and analyze the signals of acoustic emission (AE) sensor, high-frequency current transformer (HF-CT) and capacitive coupled (CC) sensor inspection methods when they are used to detect the partial discharge (PD) in gas isolation substations (GIS). The PD location feasibility of the AE method is also studied. In general, the leakage currents are measured by using the HF-...

2002
Babak Badrzadeh

Partial discharges are caused by various defects such as voids, shield protrusions, contaminants, advanced stages of water tree, etc and known the main cause of breakdown in insulation materials. Partial discharge (PD) location is a powerful and useful tool for the maintenance and operation of electrical power distribution cables. This paper describes the application of two digital signal-proce...

2016
Jeyabalan Velandy

Identification and location of partial discharge (PD) source is an important diagnostic tool for reliable operation of transformer. In this paper, future template numerical interpretation techniques are proposed for location of PD pulse duration from 0.1 s to 5 s in transformer windings using sweep frequency response analysis (SFRA) principle. To analyze the efficacy of the proposed techniques ...

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