The document summarizes mathematical modeling approaches for modeling the heart and cardiovascular system. It describes modeling the heart as a closed circulation loop and using differential equations to represent blood flow, heart chamber length and volume, and velocity components. It also discusses modeling the left ventricle pressure and volume over time using an activation function and elastance. Heart rate variability is represented as a time series analysis of fluctuations in the heart rate. The document provides an overview of key mathematical concepts for modeling heart function and hemodynamics.
Denoising of ECG -- A discrete time approach using DWTIJERA Editor
This paper is about denoising of ECG signal using DWT transform. In this paper, ECG signals are denoised using DWT transform.Ecg signals are taken and noise at different frequencies are generated which are superimposed on this original ecg signal.High frequency noise is of 4000 hertz and power line interference is of 50 hertz.Decomposition of noisy signal is achieved through wavelet packet .wavelet packets are reconstructed and appropriate wavelet packets are combined to obtain a signal, very similar to original ecg signal.This technique results in the minimization of mean square error in the filtered signals.
Imaging for Predicting and Assessing Patient Prosthesis Mismatch after AVRJunhao Koh
Echocardiographic evaluation to prevent, detect and intervene on patient prosthesis mismatch in aortic valve replacement, including TAVR / TAVI and valve-in-valve cases.
Review: Nonlinear Techniques for Analysis of Heart Rate VariabilityIJRES Journal
Heart rate variability (HRV) is a measure of the balance between sympathetic mediators of heart
rate that is the effect of epinephrine and norepinephrine released from sympathetic nerve fibres acting on the
sino-atrial and atrio-ventricular nodes which increase the rate of cardiac contraction and facilitate conduction at
the atrio-ventricular node and parasympathetic mediators of heart rate that is the influence of acetylcholine
released by the parasympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes leading to a
decrease in the heart rate and a slowing of conduction at the atrio-ventricular node. Sympathetic mediators
appear to exert their influence over longer time periods and are reflected in the low frequency power(LFP) of
the HRV spectrum (between 0.04Hz and 0.15 Hz).Vagal mediators exert their influence more quickly on the
heart and principally affect the high frequency power (HFP) of the HRV spectrum (between 0.15Hz and 0.4
Hz). Thus at any point in time the LFP:HFP ratio is a proxy for the sympatho- vagal balance. Thus HRV is a
valuable tool to investigate the sympathetic and parasympathetic function of the autonomic nervous system.
Study of HRV enhance our understanding of physiological phenomenon, the actions of medications and disease
mechanisms but large scale prospective studies are needed to determine the sensitivity, specificity and predictive
values of heart rate variability regarding death or morbidity in cardiac and non-cardiac patients. This paper
presents the linear and nonlinear to analysis the HRV.
Hemodynamic Assessment Series by Transonic -- Part 1: PV Loop Case StudyInsideScientific
Session 3 of our PV Loop Webseries was a case study review in Pressure-Volume loops, sponsored by Transonic. Guest speakers, Dr. Craig Emter, Dr. Robert Hamlin, Dr. Timothy Hacker, and Dr. Filip Konecny discussed the role of PV loops in HFpEF, Drug-Discovery and Safety Testing, Right Ventricular PV Loops in Pulmonary HTN, and Medical Device Testing using LVADs as an example. The over riding topic linking all four of these short lectures was how PV loops work in concert with other techniques, permitting complete hemodynamic evaluation.
Case Study 1: Integrating Coronary Vascular & Myocardial Function in Mini-swine with Heart Failure (an aortic banding model of HFpEF) -- Dr. Craig Emter
Case Study 2: What are the properties of this compound? (reviewing the value and need for PV loops in drug-discovery and safety testing in pharmaceutical research labs) -- Dr. Robert Hamlin
Case Study 3: The Utility of Right Ventricular PV Loops (a mouse model of Pulmonary Arterial Hypertension that transitions from compensatory RV remodeling to right heart failure) Dr. Timothy Hacker
Case Study 4: Synergy of Pressure-Volume Technology with Left Ventricular Assisted Devices (why PV loops are valuable when conducting LVAD testing in both pre and post operation situations)
Denoising of ECG -- A discrete time approach using DWTIJERA Editor
This paper is about denoising of ECG signal using DWT transform. In this paper, ECG signals are denoised using DWT transform.Ecg signals are taken and noise at different frequencies are generated which are superimposed on this original ecg signal.High frequency noise is of 4000 hertz and power line interference is of 50 hertz.Decomposition of noisy signal is achieved through wavelet packet .wavelet packets are reconstructed and appropriate wavelet packets are combined to obtain a signal, very similar to original ecg signal.This technique results in the minimization of mean square error in the filtered signals.
Imaging for Predicting and Assessing Patient Prosthesis Mismatch after AVRJunhao Koh
Echocardiographic evaluation to prevent, detect and intervene on patient prosthesis mismatch in aortic valve replacement, including TAVR / TAVI and valve-in-valve cases.
Review: Nonlinear Techniques for Analysis of Heart Rate VariabilityIJRES Journal
Heart rate variability (HRV) is a measure of the balance between sympathetic mediators of heart
rate that is the effect of epinephrine and norepinephrine released from sympathetic nerve fibres acting on the
sino-atrial and atrio-ventricular nodes which increase the rate of cardiac contraction and facilitate conduction at
the atrio-ventricular node and parasympathetic mediators of heart rate that is the influence of acetylcholine
released by the parasympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes leading to a
decrease in the heart rate and a slowing of conduction at the atrio-ventricular node. Sympathetic mediators
appear to exert their influence over longer time periods and are reflected in the low frequency power(LFP) of
the HRV spectrum (between 0.04Hz and 0.15 Hz).Vagal mediators exert their influence more quickly on the
heart and principally affect the high frequency power (HFP) of the HRV spectrum (between 0.15Hz and 0.4
Hz). Thus at any point in time the LFP:HFP ratio is a proxy for the sympatho- vagal balance. Thus HRV is a
valuable tool to investigate the sympathetic and parasympathetic function of the autonomic nervous system.
Study of HRV enhance our understanding of physiological phenomenon, the actions of medications and disease
mechanisms but large scale prospective studies are needed to determine the sensitivity, specificity and predictive
values of heart rate variability regarding death or morbidity in cardiac and non-cardiac patients. This paper
presents the linear and nonlinear to analysis the HRV.
Hemodynamic Assessment Series by Transonic -- Part 1: PV Loop Case StudyInsideScientific
Session 3 of our PV Loop Webseries was a case study review in Pressure-Volume loops, sponsored by Transonic. Guest speakers, Dr. Craig Emter, Dr. Robert Hamlin, Dr. Timothy Hacker, and Dr. Filip Konecny discussed the role of PV loops in HFpEF, Drug-Discovery and Safety Testing, Right Ventricular PV Loops in Pulmonary HTN, and Medical Device Testing using LVADs as an example. The over riding topic linking all four of these short lectures was how PV loops work in concert with other techniques, permitting complete hemodynamic evaluation.
Case Study 1: Integrating Coronary Vascular & Myocardial Function in Mini-swine with Heart Failure (an aortic banding model of HFpEF) -- Dr. Craig Emter
Case Study 2: What are the properties of this compound? (reviewing the value and need for PV loops in drug-discovery and safety testing in pharmaceutical research labs) -- Dr. Robert Hamlin
Case Study 3: The Utility of Right Ventricular PV Loops (a mouse model of Pulmonary Arterial Hypertension that transitions from compensatory RV remodeling to right heart failure) Dr. Timothy Hacker
Case Study 4: Synergy of Pressure-Volume Technology with Left Ventricular Assisted Devices (why PV loops are valuable when conducting LVAD testing in both pre and post operation situations)
Presentation On My Dissertation Research In Crmguest3dbcb97
This is a MS PowerPoint Presentation on my Doctoral Dissertation which dealt with novel cardiac pacing paradigms for potential use on AF and HF patients.
Review: Linear Techniques for Analysis of Heart Rate Variabilityinventionjournals
Heart rate variability (HRV) is a measure of the balance between sympathetic mediators of heart rate that is the effect of epinephrine and norepinephrine released from sympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes which increase the rate of cardiac contraction and facilitate conduction at the atrio-ventricular node and parasympathetic mediators of heart rate that is the influence of acetylcholine released by the parasympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes leading to a decrease in the heart rate and a slowing of conduction at the atrio-ventricular node. Sympathetic mediators appear to exert their influence over longer time periods and are reflected in the low frequency power(LFP) of the HRV spectrum (between 0.04Hz and 0.15 Hz).Vagal mediators exert their influence more quickly on the heart and principally affect the high frequency power (HFP) of the HRV spectrum (between 0.15Hz and 0.4 Hz). Thus at any point in time the LFP:HFP ratio is a proxy for the sympatho- vagal balance. Thus HRV is a valuable tool to investigate the sympathetic and parasympathetic function of the autonomic nervous system. Study of HRV enhance our understanding of physiological phenomenon, the actions of medications and disease mechanisms but large scale prospective studies are needed to determine the sensitivity, specificity and predictive values of heart rate variability regarding death or morbidity in cardiac and noncardiac patients. This paper presents the linear techniques to analysis the HRV
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
block diagram and signal flow graph representation
Mathematical modeling of health care system.ppt
1. Mathematical modelling of Health care
Presented by:
Snehanshu Shekhar, (Ph. D. Scholar),
ID no-2021krec2001
Submitted to:
Dr. Ashish Sharma,
Asst. Prof., CSE Dept., IIIT Kota
2. Disclaimer
Copyright is not reserved by author/ presenter. Author/
presenter acknowledges all the work used for reference in
this presentation for submission of assignment. This is not
meant for any commercial purpose & only meant for
educational purpose of assignment work, following syllabus
of IIIT, Kota.
Courtesy to all authors, websites and sources of materials
used to teach.
Reader is requested to report any inadvertent typo error
contained, herein.
4. Author(s) Year Work on
(mammal(s))
Heart beat rate Blood pressure Remarks/
condition
Ried Hunt and D.
W. Harrington
1897 Calf,
Opposum
Calf-156 beats/ minute
Opposum-144-218
beats/ minute
Calf-100 mm. of
mercury
Opposum-120-135
mm. of mercury
Ansesthetised
A. Rosenblueth
and F.A. Simeone
1934 Cat 150-261 beats/ minute 80-100 mm of
mercury
Ansesthetised
Deborah A. Jaye,
Yong-Fu Xiao,
and Daniel C.
Sigg
2010 Human 60-100 beats/ minute 70-130 mm of
mercury
Normal condition
Franck 1890 Cat and Dog Cat-150-261 beats/
minute
Dog-80-140 beats/
minute
Cat- 80-100 mm of
mercury
Dog- 70-145 mm
of mercury
-
Bayliss and
Starling
1892,
1902
Dog Dog-80-110 beats/
minute
Dog- 70-90 mm of
mercury
Ansesthetised
T. Hough 1892 Cat and Dog Cat-162-192 beats/
minute
Dog-80-110 beats/
minute
Cat-120-180 mm.
of mercury
Dog- 70-90 mm of
mercury
Ansesthetised
5. Heart-Cardiac Output
The rate at which the heart beats
can affect a value called cardiac
output (CO)
• Cardiac output is defined as the volume of blood being pumped by the heart
(ventricle) per unit time
• It is calculated by a simple formula
– CO= HR x SV
– HR= heart rate
– SV= stroke volume
6. Blood pressure in arteries is frequently assessed under anesthesia, whether it is
indirect (Doppler/oscillometric) or direct
• Arterial blood pressure measurement is one of the fastest and most informative
means of assessing cardiovascular function
• When it is done correctly and frequently enough, it helps provides an accurate
indication of drug effects, surgical events, and hemodynamic trends
• This is modified by almost all drugs used to induce and maintain anesthesia
Blood Pressure
7. ABP is typically measured as MAP (mean
arterial
pressure)
• MAP can be estimated by this formula
– Pm= Pd + 1/3 (Ps-Pd)
– Pm=mean
– Pd=diastolic
– Ps=systolic
– Systolic and diastolic can be measured
indirectly using
Doppler or oscillometric devices
• MAP is a result of CO x SVR (systemic
vascular
resistance)- which is the driving force for
blood
flow
Arterial Blood Pressure
8. Mathematical model of heart
Fig. Derivation of instantaneous heart rate signal (heart rate tachogram)
from the electrocardiographic( ECG) signal
9. The left ventricular volume,
where,
Vlv - left ventricular volume
rlv- left ventricular radius,
llv- long axis length
Klv- an additional coefficient which allows to include effects of the contraction in
the long axis and scales the proportion between the left ventricular radius and
volume over a cardiac cycle.
10. Ventricular long axis
length (llv) assumed to be
constant over a cardiac
cycle
Change of the left ventricular volume with respect to time (dVlv/dt) can also be
described as the difference between the mitral and aortic valve flow rates (Qmv,
Qav).
Change of the left ventricular radius with respect to time (drlv/dt) becomes as:
11. The left ventricular pressure during the active contraction and the relaxation
phases (plv,a) is described using an activation function (fact,lv), end-systolic
elastance (Ees,lv), the left ventricular radius (rlv) and left ventricular radius at zero
pressure volume (rlv,0).
The expression in the square brackets shows the difference between the left
ventricular volume (Vlv) as described above in equation 1 and the left ventricular
zero pressure-volume (Vlv,0). The activation function (fact,lv) driving the left
ventricular contraction is given below.
Here, t is the time over a cardiac cycle, T1, T2, and T are the times at the end of
systole, end of the ventricular relaxation and duration of the cardiac cycle.
12. Figure 2. Closed circulation loop model for assessing the heart model
13. Heart can be represented by a differential equation as below:
where,
Q is the blood flow rate,
L is the length of heart chamber,
V is the volume of heart chamber,
u, v, and w are velocity components in the x, y, and z directions, respectively,
ρ is the density of blood,
After applying assumptions, the equation is reduced as below:
14. A scheme of the proposed model.
Mathematical model of heart
15. Heart Rate Varibility as time series
Heart Rate Variability (HRV) is a characteristic of the heart rate time series
used to study its fluctuations in short span. The spectral analysis of HRV series
is used to establish the influence of the sympathetic and parasympathetic
nervous system on cardiac activity.
The high HRV is an indicator of good health. Various efforts have been made to
study HRV and measure the degree of irregularity of the heart rate time series.
The simulation of cardiological intervals is of particular importance for
development of methods and tools for research in heart rate and its variability.
The sequence of instantaneous heart rates, defined as time-series function is
given as:
where, RRinterval can be described as: