scholarly journals Mathematical Model Optimization Techniques under Unreliable Electromagnetic Field for ECG Waves

2021 ◽  
pp. 184-190
Keyword(s):  
Mathematical Model ◽  
Electromagnetic Field ◽  
Mobile Phone ◽  
Human Body ◽  
Human Heart ◽  
Optimization Techniques ◽  
Variation Of Parameters ◽  
Mathematical Expressions ◽  
Electrocardiogram Ecg ◽  
Day By Day

The electrocardiogram (ECG) has significant scientific importance for analyzing the majority of cardiovascular diseases. On one side the technologies are growing very fast, on the other side there is a need to check and balance their effect on human health. The activity of the heart ECG voltage vector is well explained by the modeling of the ECG wave. It is one of the essential tools to do so. In the proposed work we tried to elucidate a mathematical model for the ECG wave by presumptuous the human body as a cylindrical complex dielectric and conducting medium. The human heart is considered as a harmonic bio-signal generator positioned in this medium. Nowadays, technologies are enhancing in various aspects as the graph of mobile phone users increasing rapidly day by day. Essentially, it needed to understand its side effects on the human body and especially for the health of the human heart. The electrical equivalent of the heart can be used to develop a mathematical model for the human heart as per its functioning. The ECG parameters which are affecting due to the electromagnetic wave can be analyzed using a proposed mathematical model. If mathematical expressions are available relations can be formed and understand for each part of the human heart. As mobile phone and its, some component gives electromagnetic exposure to the human body. Hence there is a need to develop a model of the human heart using mathematical analysis. Hence, this paper proposes a mathematical model for ECG and variation of parameters due to electromagnetic field- based.

scholarly journals INFLUENCE OF AN ELECTROMAGNETIC FIELD OF A MOBILE PHONE ON A HUMAN BODY DEPENDING ON AGE

2017 ◽  
Vol 18 (3.2) ◽  
pp. 29-36
Author(s):  
T.I. Vasilieva ◽  
O.J. Sarokvasha
Keyword(s):  
Electromagnetic Field ◽  
Mobile Phone ◽  
Human Body ◽  
Biochemical Indicators ◽  
Oral Liquid ◽  
Physiological And Biochemical

Influence of an electromagnetic field of a mobile phone on physiological and biochemical indicators in an oral liquid of the person depending on age is studied. Change of the maintenance of a histamine in an oral liquid and pulse rates, and also fall of indicators of attention is revealed in the conditions of unitary fiveminute influence EMF of a mobile phone.

scholarly journals Conceptualizations of the Heart in Jordanian Arabic: A Cognitive Perspective

2020 ◽  
Vol 12 (4) ◽  
pp. 65
Author(s):  
Omar Bani Mofarrej ◽  
Ghaleb Rabab'ah
Keyword(s):  
Human Body ◽  
Human Heart ◽  
Conceptual Metaphor ◽  
Cognitive Mechanisms ◽  
Conceptual Metaphor Theory ◽  
Cognitive Perspective ◽  
Jordanian Arabic ◽  
Metaphor Theory ◽  
Idiomatic Expressions ◽  
Levantine Arabic

The present paper examines the metaphorical and metonymical conceptualizations of the heart in Jordanian Arabic (JA) within the framework of Conceptual Metaphor Theory developed by Lakoff and Johnson (1980). The main aim is to explore how the human heart is conceptualized in JA, and to test the applicability of the different general cognitive mechanisms proposed by Niemeier (2003 and 2008) to those found in JA. The data were extracted from Idioms and Idiomatic Expressions in Levantine Arabic: Jordanian Dialect (Alzoubi, 2020), and other resources including articles, dissertations and books of Arabic proverbs. The findings revealed that all the four general cognitive mechanisms suggested by Niemeier (2003 and 2008) are applicable to JA. The findings also showed that the similarity derives from the universal aspects of the human body, which lends tremendous support to the embodiment hypothesis proposed by cognitive linguists. 

Perception of the electromagnetic field emitted by a mobile phone

2008 ◽  
Vol 29 (2) ◽  
pp. 154-159 ◽  
Author(s):  
Myoung Soo Kwon ◽  
Mika Koivisto ◽  
Matti Laine ◽  
Heikki Hämäläinen
Keyword(s):  
Electromagnetic Field ◽  
Mobile Phone

Tissue necrosis and passage of fluid due to cold stress from the thermally damaged human body peripherals: A mathematical model

2015 ◽  
Vol 04 (02) ◽  
pp. 1550012
Author(s):  
M. A. Khanday ◽  
Fida Hussain ◽  
Khalid Nazir
Keyword(s):  
Mathematical Model ◽  
Finite Element ◽  
Heat Equation ◽  
Cold Stress ◽  
Human Body ◽  
Human Subjects ◽  
Diffusion Equations ◽  
Tissue Necrosis ◽  
Cold Temperatures ◽  
Element Technique

The development of cold injury takes place in the human subjects by means of crystallization of tissues in the exposed regions at severe cold temperatures. The process together with the evaluation of the passage of fluid discharge from the necrotic regions with respect to various degrees of frostbites has been carried out by using variational finite element technique. The model is based on the Pennes' bio-heat equation and mass diffusion equations together with suitable initial and boundary conditions. The results are analyzed in relation with atmospheric temperatures and other parameters of the tissue medium.

XIII. A description of a very unusual formation of the human heart

1798 ◽  
Vol 88 ◽  
pp. 346-356 ◽  
Keyword(s):  
Human Body ◽  
Human Heart ◽  
Natural Form ◽  
Perfect Knowledge ◽  
Learned Societies ◽  
Circulation Of The Blood ◽  
Unusual Formation

T he heart is an organ of so much importance in the animal oeconomy, and is so immediately concerned in the support of life, that any unusual deviation from its natural form and situation in the human body, has always been considered as a subject of some interest by the physiologist; such deviations have, therefore, not unfrequently been submitted to the consideration of this and other learned Societies. Many circumstances respecting the circulation of the blood, and respiration, wholly unknown to our ancestors, have lately been ascertained; but we are not as yet arrived at a perfect knowledge of these important actions. Difficulties yet remain; more information may still be acquired; and the reasoning upon these subjects will be less liable to fallacy, in proportion to the number of facts which have been observed, and the accuracy of the observations.

A New Method to Concentrate Electromagnetic Field Within ROI Using a High Dielectric Material in 3T Body MRI

2013 ◽  
Author(s):  
Bu S. Park ◽  
Sunder S. Rajan ◽  
Leonardo M. Angelone
Keyword(s):  
Numerical Simulation ◽  
Electromagnetic Field ◽  
Human Body ◽  
Region Of Interest ◽  
Dielectric Materials ◽  
The Body ◽  
Human Body Model ◽  
Body Model ◽  
Simulation Results ◽  
High Dielectric

We present numerical simulation results showing that high dielectric materials (HDMs) when placed between the human body model and the body coil significantly alter the electromagnetic field inside the body. The numerical simulation results show that the electromagnetic field (E, B, and SAR) within a region of interest (ROI) is concentrated (increased). In addition, the average electromagnetic fields decreased significantly outside the region of interest. The calculation results using a human body model and HDM of Barium Strontium Titanate (BST) show that the mean local SAR was decreased by about 56% (i.e., 18.7 vs. 8.2 W/kg) within the body model.

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