oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

匹配条件: “Esmail Ibrahimi Tokamjani” ,找到相关结果约201条。
列表显示的所有文章,均可免费获取
第1页/共201条
每页显示
Reliability of 3-Dimensional scapular kinematics measures of acromion marker cluster in patients with shoulder impingement syndrome during humeral elevation and lowering
Roshanak Keshavarz,Hassan Shakeri,Amir Massoud Arab,Esmail Ibrahimi Tokamjani
Pajouhan Scientific Journal , 2013,
Abstract: Introduction: The purpose of this study was to investigate the Reliability of 3-D scapular kinematics measures of Motion analyzer and Acromion cluster in patients with Shoulder impingement syndrome during humeral elevation and lowering.Material & Methods: 20 Patients (Males=13, Females=7) with Shoulder Impingement Syndrome (mean age: 46.15 years) who participated in the study. They elevated and lowered humerous in frontal, sagittal and scapular movement plane during 8 seconds, using the VICON motion analyzer and Acromion marker cluster. The Scapular 3-D kinematics was measured, using VICON motion analyzer and Acromion marker cluster. Interclass correlation coefficient and Standard error of measurement were used.Results: Participants showed average of age 46.53±13.314 as well as average of BMI 28.14±3.93, and all quantitative and qualitative variables had the normal distribution. Trial-to-trial ICCs for the 3-D scapular kinematics variables for both elevation and lowering condition in the sagittal, frontal and scapular planes ranged from 0.58 to 0.99, which indicated fair to excellent reliability, and the SEM for both elevation conditions ranged from 1.7 to 15.4 .Discussion: The reliability of the three-dimensional scapular attitudes for elevation and lowering phases were very good. The estimation of three-dimensional scapular attitudes using the method of calculation relative to the trunk is reproducible in the three movement planes during elevation and lowering phases and can be used to document the scapular behavior.
Edema, Enigma: 11 B-Hydroxysteroid Dehydrogenase Type 2 Inhibition by Sweetener “Stevia”  [PDF]
Udaya M. Kabadi, Salina Esmail
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2012, DOI: 10.4236/ojemd.2012.23007
Abstract: Intrduction: Edema, Hypertension and Hypokalemia occur with inhibition of 11 B-Hydroxysteroid Dehydrogenase Type 2 (11B-HSD2) by chronic Licorice ingestion. However, a similar presentation following a chronic use of another commonly used sweetener “Stevia” is not reported. Objective: To document a first case report of a subject presenting with Edema, Prehypertension and Hypokalemia induced by 11B-HSD2 inhibition induced by chronic ingestion of sweetener stevia. Case Report: 32 year old Caucasian woman presented with generalized edema (feet, hands and face) of over 6 months. She was noted to also manifest Prehypertension (138/88 mmHg) and Hypokalemia (3.4 mM/l). Laboratory tests revealed decline in serum aldosterone and plasma renin activity, an increase in plasma cortisol/cortisone ratio. On persistent interrogation, patient admitted to daily consumption of sweetener stevia for over 9 months. All the presenting manifestations resolved with normalization of the laboratory tests on withdrawal of stevia. Conclusion: This case report indicates that chronic ingestion of sweetener stevia may induce edema, hypertension and hypokalemia via reduced conversion of cortisol into cortisone by inhibition of 11 B-Hydroxysteroid Dehydrogenase Type 2.
Exploration of potassium chloride from Khur Playa
Esmail Aflaki
Acta Montanistica Slovaca , 2008,
Abstract: The Great Kavir is located in the centre and extended to the eastern part of Iran. The low rainfall (86.5 mm/yr) and highevaporation (2857 mm/yr) in this region have led to the presence of a number of playas. This study summarizes the most important andeconomical minerals such as halite and potash which are deposited in the Great Kavir, especially in Khur Playa. There is thus a strongmotivation for extracting this material. The evaporate minerals precipitating from the playa brine are influenced by the progressivechange in brine salinity and its composition.Research was then undertaken to elaborate a common extraction method based on a programmed scheme. A series of test-pits andboreholes were drilled in the playa to a depth of maximum 63 m to produce brine. The pre-constructed ponds were then used to extractKCl by evaporation of water under the sun. Our investigations show that the average content of potassium at Khur Playa is at least2600 ppm.
Algorithm Acceleration and Data Storage Volume Reduction in Reliability Modeling Within Distribution Network
Esmail limouzade
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: Investigation and assessment of a system performance was complex. So Equipment reliability modeling may be a proper solution to easier it. Electricity distribution network is among systems reliability of which is of great importance. They are highly complex due to their large size and hence their modeling takes a long time. This study offers a simple algorithm for Electricity distribution networks modeling which enjoys algorithm high speed and data low volume. It is based on a graph search method called coloring. In this innovative method, it is suggested to search minimal path from the beginning of the feeder to the sink points .Also it is applied by saving paths in terms of switches and through logical operations of symmetric difference without searching paths from each input to estimate minimal path between all inputs and outputs. In so doing there will be no need for explicitly defining the source node, as it is easily recognizable via junction matrix composition. This kind of network modeling is so flexible and it is simply applicable to bidirectional or non-planar graphs.
Comparison of Gridded Precipitation Time Series Data in APHRODITE and Asfazari Databases within Iran’s Territory  [PDF]
Esmail Nasrabadi, Seyyed Abolfazl Masoodian, Hossein Asakereh
Atmospheric and Climate Sciences (ACS) , 2013, DOI: 10.4236/acs.2013.32025
Abstract:

The V1003R1 version of the monthly, seasonal and annual precipitation time series of the Middle East APHRODITE database and Asfazari database within Iranian territory in the time interval 1961 and 2004 were compared with each other. The monthly, seasonal and annual time series of the both databases in most cases show a random behavior and the time series follow a similar pattern with a significant autocorrelation of both databases. Studying cross-correlation between the time series of the two bases indicate that the zero lag significance in the monthly, seasonal and annual time series statistically confirm the coincidence of the peak and fall in the time series of both bases. Wilcoxon Test with 95% confidence confirms significance of the mean difference of the two series. However, there is not enough evidence to confirm the null hypothesis suggesting lack of difference between means of the two series. The statistical-objective analysis of the two bases’ time series indicates that although the series follow a similar course, the estimated precipitation quantity in monthly, seasonal and annual time series of APHRODITE base, except in several monthly time series and in trivial quantities, has been less than the estimated precipitation of Asfazari bases, but the amount of the difference was not constant and did not follow a regular pattern, although this difference has been narrowed in recent years.

Support Recovery for the Drift Coefficient of High-Dimensional Diffusions
Jose Bento,Morteza Ibrahimi
Computer Science , 2013,
Abstract: Consider the problem of learning the drift coefficient of a $p$-dimensional stochastic differential equation from a sample path of length $T$. We assume that the drift is parametrized by a high-dimensional vector, and study the support recovery problem when both $p$ and $T$ can tend to infinity. In particular, we prove a general lower bound on the sample-complexity $T$ by using a characterization of mutual information as a time integral of conditional variance, due to Kadota, Zakai, and Ziv. For linear stochastic differential equations, the drift coefficient is parametrized by a $p\times p$ matrix which describes which degrees of freedom interact under the dynamics. In this case, we analyze a $\ell_1$-regularized least squares estimator and prove an upper bound on $T$ that nearly matches the lower bound on specific classes of sparse matrices.
Teaching Planetary Gear Trains with the Aid of Nomographs
Essam Lauibi Esmail
Advances in Mechanical Engineering , 2013, DOI: 10.1155/2013/978418
Abstract:
Nomographs and Feasibility Graphs for Enumeration of Ravigneaux-Type Automatic Transmissions
Essam L. Esmail
Advances in Mechanical Engineering , 2013, DOI: 10.1155/2013/120324
Abstract:
A degenerate kernel method for eigenvalue problems of a class of non-compact operators
Hassan Majidian,Esmail Babolian
Mathematics , 2008,
Abstract: We consider the eigenvalue problem of certain kind of non-compact linear operators given as the sum of a multiplication and a kernel operator. A degenerate kernel method is used to approximate isolated eigenvalues. It is shown that entries of the corresponding matrix of this method can be evaluated exactly. The convergence of the method is proved; it is proved that the convergence rate is $O(h)$. By some numerical examples, we confirm the results.
$(n D+1)$ Padé approximation
Hamed Mohebalizadeh,Esmail Babolian
Mathematics , 2014,
Abstract: To generalize the concept of Pad\'e approximation for functions to more than one variable, several definitions have been introduced. All definitions have advantages and disadvantages. The advantages of these approaches has been discussed in many articles. One of the main disadvantages of these methods are low convergence rate and the loss of information in computing with low degrees. In this work we present a new definition of the multivariate Pad\'e approximation, treated the more than one variable to the coefficients. Our definition is designed to avoid such disadvantages with retaining the advantages of simple and easily computation. The main result obtained as consequence of this definition is some properties and convergence results of the Montessus De Ballore theorem.
第1页/共201条
每页显示


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.