INVESTIGATING THE USE OF IMPEDANCE PLETHYSMOGRAPHY FOR DETECTING DECREASED BL...Mirza Baig
Literature Review
According to Isabel Morales’ research, the foot impedance plethysmography was carried out with two distinct kinds of electrodes, using 1mA/10kHz and finding the impedance of the foot.
In this study Piuzzi research is an ultimate technique selected that makes use of a current with a frequency of 50 kHz that is injected into the thorax of the subject using a couple of textile electrodes.
In this study of Ramkumar & Babu, blood flow was performed using a fuzzy logic toolbox with many different activities, measured before and after the 25 seconds of breath-holding activity. The plethysmographic waveform of forearm impedance can be used to analyze the changes in a heartbeat that are correlated with the changes in heart stroke volume.
Contribution
In this work we are investigating using multiple electrodes to see the additional data going to make testing easier.
Our research is primarily focusing on the amount of blood flow through the finger of the upper limb for diabetic patients.
Conclusion
The finger-simplified model was created in model geometry. A framework made up of five parts was used to build the finger. (i.e., skin, fat, artery, muscle, and bone)
The study includes COMSOL simulation results compared with experimental results to obtain the optimum parameters for this technique. The COMSOL simulation uses 4 electrodes in different positions with a current of 10mA giving the optimal frequency of 100Hz.
It was shown that multiple electrodes can be useful in obtaining impedance change.
This is useful because signals can not be obtained from one pair, or to further support the results.
The study was performed under normal resting conditions where an experimental procedure was set up to measure the impedance response from the finger.
Experiment results were not conclusive as more sensitive impedance analyzers are required.
This research will be helpful to find out the heartbeat using impedance plethysmography.
Hemodynamic monitor by using IPG TechniqueMirza Baig
Introduction
It’s a non - invasive medical test
NASA developed a technology for calculating cardiac output
For Arteries, blood flow in any area.
Result will be recorded in a Graph.
we use 2 pair of Surface Electrodes.
Technique
It is measured by constant current method.
Blood is a good conductor of electricity, the amount of blood in a given body segment.
Pulsatile blood volume by heart .
Variation in the electrical impedance thus gives adequate information about the blood circulation.
Voltage signal developed along the current.
The amplitude of the signal sensed is directly proportional to the electrical impedance of the body segment.
Amplification & detection of this signal gives instantaneous electrical impedance Z of the body segment.
Wearable biomedical devices
pulse rate monitors
low-cost and small devices
Important design requirements for these systems include miniaturization, robustness and user-friendliness.
These devices have a sensor that monitors minor variations in the intensity of light transmitted through or reflected from the tissue.
Fingerprint Recognition
Fingerprint recognition is one of the oldest and most
researched fields of biometrics.
Some biological principles (Moenssens 1971) related
to fingerprint recognition are as follows:
Individual epidermal ridges and furrows have different characteristics for different fingerprints.
This forms the foundation of fingerprint recognition
The configuration types are individually variable; but they vary within limits that allow for a systematic classification.
Herein lies the basis for fingerprint classification.
The configuration and minute details of furrows are permanent and unchanging.
Power Electronic Devices
The power Electronic devices provides the utility of switching.
The flow of power through these devices can be controlled via small currents.
Power electronics devices differ from ordinary electronics devices in terms of their characteristics.
Power Semiconductor Devices can be classified into three groups according to their degree of controllability.
Diodes (on and off controlled by power circuit)
Thyristors (latched on by control signal but must be turned off by power circuit)
Controllable Switches (turned on and off by control signal)
diode
A p-n junction diode is formed by placing p and n type semiconductor materials in intimate contact on an atomic scale.
TOPICS INCLUDED IN THIS PRESENTATION
INTRODUCTION
WHY OPTICAL SENSORS ?
PRINCIPLE OF OPTICAL SENSORS
CLASSIFICATION AND COMPARISON
SOME INTERESTING APPLICATIONS
WHERE DO WE GO FROM HERE ?
INTRODUCTION
NEW REVOLUTION OF OPTICAL FIBER SENSORS
IT IS A “SPIN-OFF” FROM OTHER OPTICAL TECHNOLOGIES
SEEING THE POTENTIAL IN SENSING APPLICATIONS – DEVELOPED AS ITS OWN FIELD
WHY OPTICAL SENSORS
ELECTROMAGNETIC IMMUNITY
ELECTRICAL ISOLATION
COMPACT AND LIGHT
BOTH POINT AND DISTRIBUTED CONFIGURATION
WIDE DYNAMIC RANGE
AMENABLE TO MULTIPLEXING
What is Wireshark?
Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communication protocol development, and education.
Wireshark perhaps one of the best open source packet analyzer available for Windows and LINX
Some Important Purpose
Network Administrator used for troubleshoot network problem.
Network security engineer used for examine security problem.
Developer used for debug protocol implementation.
People used for learn protocol protocol internals.
Lecture Outline
Introduction to subject
Application Areas
Power Electronic Devices
Power Converters
What is power electronics?
1) Definition
Power Electronics: is the electronics applied to conversion and control of electric power.
Prerequisites
Power electronics incorporates concepts from the fields of
Analog circuits
Electronic devices
Control systems
Power systems
Magnetics
Electric machines
Numerical simulation
Scope
It is not possible to build practical computers, cell phones, personal data devices, cars, airplanes, industrial processes, and other everyday products without power electronics.
Alternative energy systems such as wind generators, solar power, fuel cells, and others require power electronics to function.
Technology advances such as electric and hybrid vehicles, laptop computers, microwave ovens, flat-panel displays, LED lighting, and hundreds of other innovations were not possible until advances in power electronics enabled their implementation.
Although no one can predict the future, it is certain that power electronics will be at the heart of fundamental energy innovations.
Applications: Electric VehicleTesla Model S
Functions of the power electronics:
1. Convert the DC battery voltage to the variable AC required to drive the AC motor
240 V battery
Variable-frequency, variable-voltage AC drives the motor
AC motor propels the rear axle
Up to 330 kW (acceleration)
Up to 60 kW regenerative braking
2. Control charging of the battery
Interface to 240 V 60 Hz 1φ 100 A circuit in garage.
Control AC current waveform to be sinusoidal, unity power factor.
Control charging of battery to maximize life.
Applications: Hybrid VehiclesPrius
Power Electronics Module:
Convert the DC battery voltage to the variable AC required to drive the AC motor.
Includes dc-dc boost converter and dc-3φ ac inverter
Control system can operate in all-electric mode or in hybrid gas+electric mode
Partial-power electronics
INVESTIGATING THE USE OF IMPEDANCE PLETHYSMOGRAPHY FOR DETECTING DECREASED BL...Mirza Baig
Literature Review
According to Isabel Morales’ research, the foot impedance plethysmography was carried out with two distinct kinds of electrodes, using 1mA/10kHz and finding the impedance of the foot.
In this study Piuzzi research is an ultimate technique selected that makes use of a current with a frequency of 50 kHz that is injected into the thorax of the subject using a couple of textile electrodes.
In this study of Ramkumar & Babu, blood flow was performed using a fuzzy logic toolbox with many different activities, measured before and after the 25 seconds of breath-holding activity. The plethysmographic waveform of forearm impedance can be used to analyze the changes in a heartbeat that are correlated with the changes in heart stroke volume.
Contribution
In this work we are investigating using multiple electrodes to see the additional data going to make testing easier.
Our research is primarily focusing on the amount of blood flow through the finger of the upper limb for diabetic patients.
Conclusion
The finger-simplified model was created in model geometry. A framework made up of five parts was used to build the finger. (i.e., skin, fat, artery, muscle, and bone)
The study includes COMSOL simulation results compared with experimental results to obtain the optimum parameters for this technique. The COMSOL simulation uses 4 electrodes in different positions with a current of 10mA giving the optimal frequency of 100Hz.
It was shown that multiple electrodes can be useful in obtaining impedance change.
This is useful because signals can not be obtained from one pair, or to further support the results.
The study was performed under normal resting conditions where an experimental procedure was set up to measure the impedance response from the finger.
Experiment results were not conclusive as more sensitive impedance analyzers are required.
This research will be helpful to find out the heartbeat using impedance plethysmography.
Hemodynamic monitor by using IPG TechniqueMirza Baig
Introduction
It’s a non - invasive medical test
NASA developed a technology for calculating cardiac output
For Arteries, blood flow in any area.
Result will be recorded in a Graph.
we use 2 pair of Surface Electrodes.
Technique
It is measured by constant current method.
Blood is a good conductor of electricity, the amount of blood in a given body segment.
Pulsatile blood volume by heart .
Variation in the electrical impedance thus gives adequate information about the blood circulation.
Voltage signal developed along the current.
The amplitude of the signal sensed is directly proportional to the electrical impedance of the body segment.
Amplification & detection of this signal gives instantaneous electrical impedance Z of the body segment.
Wearable biomedical devices
pulse rate monitors
low-cost and small devices
Important design requirements for these systems include miniaturization, robustness and user-friendliness.
These devices have a sensor that monitors minor variations in the intensity of light transmitted through or reflected from the tissue.
Fingerprint Recognition
Fingerprint recognition is one of the oldest and most
researched fields of biometrics.
Some biological principles (Moenssens 1971) related
to fingerprint recognition are as follows:
Individual epidermal ridges and furrows have different characteristics for different fingerprints.
This forms the foundation of fingerprint recognition
The configuration types are individually variable; but they vary within limits that allow for a systematic classification.
Herein lies the basis for fingerprint classification.
The configuration and minute details of furrows are permanent and unchanging.
Power Electronic Devices
The power Electronic devices provides the utility of switching.
The flow of power through these devices can be controlled via small currents.
Power electronics devices differ from ordinary electronics devices in terms of their characteristics.
Power Semiconductor Devices can be classified into three groups according to their degree of controllability.
Diodes (on and off controlled by power circuit)
Thyristors (latched on by control signal but must be turned off by power circuit)
Controllable Switches (turned on and off by control signal)
diode
A p-n junction diode is formed by placing p and n type semiconductor materials in intimate contact on an atomic scale.
TOPICS INCLUDED IN THIS PRESENTATION
INTRODUCTION
WHY OPTICAL SENSORS ?
PRINCIPLE OF OPTICAL SENSORS
CLASSIFICATION AND COMPARISON
SOME INTERESTING APPLICATIONS
WHERE DO WE GO FROM HERE ?
INTRODUCTION
NEW REVOLUTION OF OPTICAL FIBER SENSORS
IT IS A “SPIN-OFF” FROM OTHER OPTICAL TECHNOLOGIES
SEEING THE POTENTIAL IN SENSING APPLICATIONS – DEVELOPED AS ITS OWN FIELD
WHY OPTICAL SENSORS
ELECTROMAGNETIC IMMUNITY
ELECTRICAL ISOLATION
COMPACT AND LIGHT
BOTH POINT AND DISTRIBUTED CONFIGURATION
WIDE DYNAMIC RANGE
AMENABLE TO MULTIPLEXING
What is Wireshark?
Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communication protocol development, and education.
Wireshark perhaps one of the best open source packet analyzer available for Windows and LINX
Some Important Purpose
Network Administrator used for troubleshoot network problem.
Network security engineer used for examine security problem.
Developer used for debug protocol implementation.
People used for learn protocol protocol internals.
Lecture Outline
Introduction to subject
Application Areas
Power Electronic Devices
Power Converters
What is power electronics?
1) Definition
Power Electronics: is the electronics applied to conversion and control of electric power.
Prerequisites
Power electronics incorporates concepts from the fields of
Analog circuits
Electronic devices
Control systems
Power systems
Magnetics
Electric machines
Numerical simulation
Scope
It is not possible to build practical computers, cell phones, personal data devices, cars, airplanes, industrial processes, and other everyday products without power electronics.
Alternative energy systems such as wind generators, solar power, fuel cells, and others require power electronics to function.
Technology advances such as electric and hybrid vehicles, laptop computers, microwave ovens, flat-panel displays, LED lighting, and hundreds of other innovations were not possible until advances in power electronics enabled their implementation.
Although no one can predict the future, it is certain that power electronics will be at the heart of fundamental energy innovations.
Applications: Electric VehicleTesla Model S
Functions of the power electronics:
1. Convert the DC battery voltage to the variable AC required to drive the AC motor
240 V battery
Variable-frequency, variable-voltage AC drives the motor
AC motor propels the rear axle
Up to 330 kW (acceleration)
Up to 60 kW regenerative braking
2. Control charging of the battery
Interface to 240 V 60 Hz 1φ 100 A circuit in garage.
Control AC current waveform to be sinusoidal, unity power factor.
Control charging of battery to maximize life.
Applications: Hybrid VehiclesPrius
Power Electronics Module:
Convert the DC battery voltage to the variable AC required to drive the AC motor.
Includes dc-dc boost converter and dc-3φ ac inverter
Control system can operate in all-electric mode or in hybrid gas+electric mode
Partial-power electronics
Agenda
A shortcut of GNU radio
Hardware platform –USRP
DSP design flow of GNU Radio
Write your own block
Implementation of LPI radio transmission
What ıs GNU Radio
An open source software tool kıt
Support , Linux, Mac OS and wındows
Creatıng sıgnal processıng applıcatıons
Defınıng waveforms I software
Processıng waveform I software
A hardware platform
USRP, unıversal software radıo perıpheral ,low cost HW platform for prepossıng
ADC & DAC
FPGA
USB 2.0ınterface to host PC
A framework for buıldıng radıo transceivers
ACKNOWLEDGMENT
In the name of Allah, the most Gracious, the ever merciful
We would like to express our profound and sincere gratitude to our project supervisor, Engr. Asma Katiar , and internal advisor: Engr. Asma Katiar, for their constant and valuable guidance, inspiration, forbearance and keen interest during this project work.
.
We are highly thankful to all of them including Dean Prof. Dr. Engr. Syed Hyder Abbas Musavi, Chairperson Department of Science and Technology Dr. Engr. Zahid Ali and all the members of FYP Committee.
Finally, we would like to acknowledge the immeasurable contribution of our parents, without their constant inspiration and comradeship this work would never have been over. After completion of this project we can confidently say that this experience has not only enriched us with technical knowledge but also enhanced the maturity of thoughts and vision
ABSTRACT
This project deals with manufacture of a Prototype of Automatic Solar Vertical Car Parking System. This system has been implemented to reduce the excess use the land space which is already very scarce in metro cities . Different types of vehicle parking are applied worldwide namely Multi-Level Automated Car Parking , Automated Car Parking System and Rotary Car Parking System. The Present Project work is aimed to develop a scale down working model of a car parking system of parking cars within a large parking area. The pallet rotation mechanism is used for driving the parking platform. This total prototype powered by Solar energy and D.C Motor. We can generated the energy through the solar panel and stores energy into battery and give energy to motor . When the car comes to Platform then user Punch is finger on Finger Module and incase if user aren’t able to do car park maybe other person can come to park a car it can use the pin no. to park a car , respectively comeback to platform and carry the car. Then the Pallet start and new space will be adjust for new car.
state space modeling of electrical systemMirza Baig
Introduction
As systems become more complex, representing them with differential equations or transfer functions becomes cumbersome. This is even more true if the system has multiple inputs and outputs. This document introduces the state space method which largely alleviates this problem. The state space representation of a system replaces an nth order differential equation with a single first order matrix differential equation. The state space representation of a system is given by two equations :
The first equation is called the state equation, the second equation is called the output equation. For an nth order system (i.e., it can be represented by an nth order differential equation) with r inputs and m outputs the size of each of the matrices is as follows:
Several features:The state equation has a single first order derivative of the state vector on the left, and the state vector, q(t), and the input u(t) on the right. There are no derivatives on the right hand side.The output equation has the output on the left, and the state vector, q(t), and the input u(t) on the right. There are no derivatives on the right hand side.
q is nx1 (n rows by 1 column)q is called the state vector, it is a function of timeA is nxn; A is the state matrix, a constantB is nxr; B is the input matrix, a constant u is rx1; u is the input, a function of time C is mxn; C is the output matrix, a constant D is mxr; D is the direct transition matrix, a constant y is mx1; y is the output, a function of time
Derivation of of State Space Model (Electrical)
To develop a state space system for an electrical system, they choosing the voltage across capacitors, and current through inductors as state variables. Recall that
so if we can write equations for the voltage across an inductor, it becomes a state equation when we divide by the inductance (i.e., if we have an equation for einductor and divide by L, it becomes an equation for diinductor/dt which is one of our state variable). Likewise if we can write an equation for the current through the capacitor and divide by the capacitance it becomes a state equation for ecapacitor
There are three energy storage elements, so we expect three state equations. Try choosing i1, i2 and e1 as state variables. Now we want equations for their derivatives. The voltage across the inductor L2 is e1 (which is one of our state variables)so our first state variable equation is
This equation has our input (ia) and two state variable (iL2 and iL1) and the current through the capacitor. So from this we can get our second state equation
Our third, and final, state equation we get by writing an equation for the voltage across L1 (which is e2) in terms of our other state variables
references:
http://lpsa.swarthmore.edu/Representations/SysRepSS.html
https://en.wikipedia.org/wiki/State-space_representation
CONTENTS::
Introduction
Why optical sensor
Working principle
Sensor details
Classification
Comparison between two type
Sensor type
Block diagram
Application
Conclusion
Reference
AUTOMATIC SOLAR VERTICAL CAR PARKING SYSTEMMirza Baig
The project is mainly on embedded systems.
An Embedded system is an electronic/electromechanical system designed to perform a specific function and it is a combination of firmware and hardware.
We had used 8051 Microcontroller
REQUIRES LESS SPACE IN AUTOMATIC CAR PARKING
REDUCES POLLUTION
TRADTIONAL CAR PARKING IS COSTLY PROCESSS
The automatic parking aims to enhance the comfort and safety of driving in constrained environments where much attention and experience is required to steer the car.
Automatic digital-analog impedance plethysmographyMirza Baig
This document describes an automatic digital-analog impedance plethysmography system using venous occlusion plethysmography to identify disease in healthy volunteers. The system uses software, hardware, and an acquisition circuit with tetrapolar electrodes to generate and inject a constant amplitude signal and measure nonlinear potential differences during cuff occlusion testing. Results demonstrated the system could successfully identify disease using venous occlusion plethysmography within 1% tolerance levels.
Automatic digital-analog impedance plethysmographMirza Baig
The document describes an automatic digital-analog impedance plethysmograph that uses electrical impedance to non-invasively measure carotid pulse and blood pressure over the long term. It applies a small device with two electrode pairs around the neck of 6 volunteers to continuously monitor impedance variations at 50Hz, optimizing measurement of carotid pulse for long term cardiac and vascular health monitoring.
Wearable Belt With Built-In Textile Electrodes for Cardio—Respiratory Monitor...Mirza Baig
abstract:
Respiratory and cardiac signal
Low cost
Easy to operate
Wireless
Easily separated
Material and Method:
Peak amplitude is about 0.5mA and RMS amplitude approx.. 0.35mA
Limit of patient maximum current is 5mA and 50kHz
Voltage is picking up by the thorax surface.
Studying Peripheral Vascular Pulse Wave Velocity Using Bioimpedance Plethysmo...Mirza Baig
Pulse wave velocity from the radial artery in the wrist to the middle finger
Electro cardio graph combine with bio impedance method
Temporary blockage of blood flow didn’t make major changes
Design an impedance plethysmography system for measuring limbMirza Baig
Abstract:
Limb blood as a flow permanent flow per beat and the volume of cardiac output
Safe method
Non-reactive
Advance analog amplifier
Microprocessor controller
Flexible output signal
Fingerprint recognition is one of the oldest and most researched fields of biometrics.
The configuration types are individually variable, but they vary within limits that allow for a systematic classification.
Optical Sensors
An optical sensor converts light rays into an electronic signal.
Optical Sensors are used for contact-less detection, counting or positioning of parts.
Optical sensors can be either internal or external.
The measurands possible by different optical sensors are Temperature, Velocity Liquid level, Pressure, Displacement.
Types of Optical Sensors
There are different kinds of optical sensors.
Photoconductive
Photovoltaic cell
Photodiodes
‘‘Wafer bonding’’ refers to the phenomenon that mirror polished, flat, and clean wafers of almost any material, when brought into contact at room temperature, are locally attracted to each other by van der Waals forces and ‘‘bond’’ to each other.
Wearable biomedical devices:
pulse rate monitors
low-cost and small devices
Important design requirements for these systems include miniaturization, robustness and user-friendliness.
These devices have a sensor that monitors minor variations in the intensity of light transmitted through or reflected from the tissue.
Fabrication of through silicon-via (tsv) by copperMirza Baig
The document summarizes research on fabricating through-silicon vias (TSVs) using copper electroplating in an electrolyte mixed with supercritical carbon dioxide. It describes the TSV fabrication process, the experimental setup using supercritical CO2, and the results of testing different fabrication parameters. The best hermeticity was found at 2500 psi pressure, the lowest electrical resistance at 1100 psi and 3 A/dm2 current density, and the fastest electroplating time of 3 hours was at 2000 psi and 7 A/dm2. Supercritical CO2 electroplating offers benefits over traditional methods by providing complete filling of structures using a simple setup without additives in less time.
Projection lithography uses an optical system to focus and project a mask image onto a silicon wafer. There are three main types: scanning projection which moves the mask and wafer, step and repeat which replicates a larger mask pattern across the wafer, and step and scan which scans the mask while moving the wafer. Projection lithography allows for higher resolution than contact lithography without damaging masks. It enables mass production of integrated circuits with feature sizes below 100nm.
This document discusses different sputtering technologies for producing ultraclean metal coatings and their applications. It describes magnetron sputtering, which allows high deposition rates of pure and uniform films onto various substrates. Sustained self-sputtering intensifies the plasma using small magnets and works well with high-yield metals like silver and copper. High power impulse magnetron sputtering uses extremely high power densities in short pulses for coatings. Potential applications include ultrapure metallization, thin film deposition in space, and new space propulsion options using solid fuel.
What is MEMS?
Micro electro mechanical system is a technique of combining electrical and mechanical combinations together on a chip, to produce a system of miniature dimensions.
MEMS is a integration of a number micro components on a single chip which allow the microsystem to both sense and control the environment.
The components are integrated on a single chip using micro fabrication technologies.
Height and depth gauge linear metrology.pdfq30122000
Height gauges may also be used to measure the height of an object by using the underside of the scriber as the datum. The datum may be permanently fixed or the height gauge may have provision to adjust the scale, this is done by sliding the scale vertically along the body of the height gauge by turning a fine feed screw at the top of the gauge; then with the scriber set to the same level as the base, the scale can be matched to it. This adjustment allows different scribers or probes to be used, as well as adjusting for any errors in a damaged or resharpened probe.
Agenda
A shortcut of GNU radio
Hardware platform –USRP
DSP design flow of GNU Radio
Write your own block
Implementation of LPI radio transmission
What ıs GNU Radio
An open source software tool kıt
Support , Linux, Mac OS and wındows
Creatıng sıgnal processıng applıcatıons
Defınıng waveforms I software
Processıng waveform I software
A hardware platform
USRP, unıversal software radıo perıpheral ,low cost HW platform for prepossıng
ADC & DAC
FPGA
USB 2.0ınterface to host PC
A framework for buıldıng radıo transceivers
ACKNOWLEDGMENT
In the name of Allah, the most Gracious, the ever merciful
We would like to express our profound and sincere gratitude to our project supervisor, Engr. Asma Katiar , and internal advisor: Engr. Asma Katiar, for their constant and valuable guidance, inspiration, forbearance and keen interest during this project work.
.
We are highly thankful to all of them including Dean Prof. Dr. Engr. Syed Hyder Abbas Musavi, Chairperson Department of Science and Technology Dr. Engr. Zahid Ali and all the members of FYP Committee.
Finally, we would like to acknowledge the immeasurable contribution of our parents, without their constant inspiration and comradeship this work would never have been over. After completion of this project we can confidently say that this experience has not only enriched us with technical knowledge but also enhanced the maturity of thoughts and vision
ABSTRACT
This project deals with manufacture of a Prototype of Automatic Solar Vertical Car Parking System. This system has been implemented to reduce the excess use the land space which is already very scarce in metro cities . Different types of vehicle parking are applied worldwide namely Multi-Level Automated Car Parking , Automated Car Parking System and Rotary Car Parking System. The Present Project work is aimed to develop a scale down working model of a car parking system of parking cars within a large parking area. The pallet rotation mechanism is used for driving the parking platform. This total prototype powered by Solar energy and D.C Motor. We can generated the energy through the solar panel and stores energy into battery and give energy to motor . When the car comes to Platform then user Punch is finger on Finger Module and incase if user aren’t able to do car park maybe other person can come to park a car it can use the pin no. to park a car , respectively comeback to platform and carry the car. Then the Pallet start and new space will be adjust for new car.
state space modeling of electrical systemMirza Baig
Introduction
As systems become more complex, representing them with differential equations or transfer functions becomes cumbersome. This is even more true if the system has multiple inputs and outputs. This document introduces the state space method which largely alleviates this problem. The state space representation of a system replaces an nth order differential equation with a single first order matrix differential equation. The state space representation of a system is given by two equations :
The first equation is called the state equation, the second equation is called the output equation. For an nth order system (i.e., it can be represented by an nth order differential equation) with r inputs and m outputs the size of each of the matrices is as follows:
Several features:The state equation has a single first order derivative of the state vector on the left, and the state vector, q(t), and the input u(t) on the right. There are no derivatives on the right hand side.The output equation has the output on the left, and the state vector, q(t), and the input u(t) on the right. There are no derivatives on the right hand side.
q is nx1 (n rows by 1 column)q is called the state vector, it is a function of timeA is nxn; A is the state matrix, a constantB is nxr; B is the input matrix, a constant u is rx1; u is the input, a function of time C is mxn; C is the output matrix, a constant D is mxr; D is the direct transition matrix, a constant y is mx1; y is the output, a function of time
Derivation of of State Space Model (Electrical)
To develop a state space system for an electrical system, they choosing the voltage across capacitors, and current through inductors as state variables. Recall that
so if we can write equations for the voltage across an inductor, it becomes a state equation when we divide by the inductance (i.e., if we have an equation for einductor and divide by L, it becomes an equation for diinductor/dt which is one of our state variable). Likewise if we can write an equation for the current through the capacitor and divide by the capacitance it becomes a state equation for ecapacitor
There are three energy storage elements, so we expect three state equations. Try choosing i1, i2 and e1 as state variables. Now we want equations for their derivatives. The voltage across the inductor L2 is e1 (which is one of our state variables)so our first state variable equation is
This equation has our input (ia) and two state variable (iL2 and iL1) and the current through the capacitor. So from this we can get our second state equation
Our third, and final, state equation we get by writing an equation for the voltage across L1 (which is e2) in terms of our other state variables
references:
http://lpsa.swarthmore.edu/Representations/SysRepSS.html
https://en.wikipedia.org/wiki/State-space_representation
CONTENTS::
Introduction
Why optical sensor
Working principle
Sensor details
Classification
Comparison between two type
Sensor type
Block diagram
Application
Conclusion
Reference
AUTOMATIC SOLAR VERTICAL CAR PARKING SYSTEMMirza Baig
The project is mainly on embedded systems.
An Embedded system is an electronic/electromechanical system designed to perform a specific function and it is a combination of firmware and hardware.
We had used 8051 Microcontroller
REQUIRES LESS SPACE IN AUTOMATIC CAR PARKING
REDUCES POLLUTION
TRADTIONAL CAR PARKING IS COSTLY PROCESSS
The automatic parking aims to enhance the comfort and safety of driving in constrained environments where much attention and experience is required to steer the car.
Automatic digital-analog impedance plethysmographyMirza Baig
This document describes an automatic digital-analog impedance plethysmography system using venous occlusion plethysmography to identify disease in healthy volunteers. The system uses software, hardware, and an acquisition circuit with tetrapolar electrodes to generate and inject a constant amplitude signal and measure nonlinear potential differences during cuff occlusion testing. Results demonstrated the system could successfully identify disease using venous occlusion plethysmography within 1% tolerance levels.
Automatic digital-analog impedance plethysmographMirza Baig
The document describes an automatic digital-analog impedance plethysmograph that uses electrical impedance to non-invasively measure carotid pulse and blood pressure over the long term. It applies a small device with two electrode pairs around the neck of 6 volunteers to continuously monitor impedance variations at 50Hz, optimizing measurement of carotid pulse for long term cardiac and vascular health monitoring.
Wearable Belt With Built-In Textile Electrodes for Cardio—Respiratory Monitor...Mirza Baig
abstract:
Respiratory and cardiac signal
Low cost
Easy to operate
Wireless
Easily separated
Material and Method:
Peak amplitude is about 0.5mA and RMS amplitude approx.. 0.35mA
Limit of patient maximum current is 5mA and 50kHz
Voltage is picking up by the thorax surface.
Studying Peripheral Vascular Pulse Wave Velocity Using Bioimpedance Plethysmo...Mirza Baig
Pulse wave velocity from the radial artery in the wrist to the middle finger
Electro cardio graph combine with bio impedance method
Temporary blockage of blood flow didn’t make major changes
Design an impedance plethysmography system for measuring limbMirza Baig
Abstract:
Limb blood as a flow permanent flow per beat and the volume of cardiac output
Safe method
Non-reactive
Advance analog amplifier
Microprocessor controller
Flexible output signal
Fingerprint recognition is one of the oldest and most researched fields of biometrics.
The configuration types are individually variable, but they vary within limits that allow for a systematic classification.
Optical Sensors
An optical sensor converts light rays into an electronic signal.
Optical Sensors are used for contact-less detection, counting or positioning of parts.
Optical sensors can be either internal or external.
The measurands possible by different optical sensors are Temperature, Velocity Liquid level, Pressure, Displacement.
Types of Optical Sensors
There are different kinds of optical sensors.
Photoconductive
Photovoltaic cell
Photodiodes
‘‘Wafer bonding’’ refers to the phenomenon that mirror polished, flat, and clean wafers of almost any material, when brought into contact at room temperature, are locally attracted to each other by van der Waals forces and ‘‘bond’’ to each other.
Wearable biomedical devices:
pulse rate monitors
low-cost and small devices
Important design requirements for these systems include miniaturization, robustness and user-friendliness.
These devices have a sensor that monitors minor variations in the intensity of light transmitted through or reflected from the tissue.
Fabrication of through silicon-via (tsv) by copperMirza Baig
The document summarizes research on fabricating through-silicon vias (TSVs) using copper electroplating in an electrolyte mixed with supercritical carbon dioxide. It describes the TSV fabrication process, the experimental setup using supercritical CO2, and the results of testing different fabrication parameters. The best hermeticity was found at 2500 psi pressure, the lowest electrical resistance at 1100 psi and 3 A/dm2 current density, and the fastest electroplating time of 3 hours was at 2000 psi and 7 A/dm2. Supercritical CO2 electroplating offers benefits over traditional methods by providing complete filling of structures using a simple setup without additives in less time.
Projection lithography uses an optical system to focus and project a mask image onto a silicon wafer. There are three main types: scanning projection which moves the mask and wafer, step and repeat which replicates a larger mask pattern across the wafer, and step and scan which scans the mask while moving the wafer. Projection lithography allows for higher resolution than contact lithography without damaging masks. It enables mass production of integrated circuits with feature sizes below 100nm.
This document discusses different sputtering technologies for producing ultraclean metal coatings and their applications. It describes magnetron sputtering, which allows high deposition rates of pure and uniform films onto various substrates. Sustained self-sputtering intensifies the plasma using small magnets and works well with high-yield metals like silver and copper. High power impulse magnetron sputtering uses extremely high power densities in short pulses for coatings. Potential applications include ultrapure metallization, thin film deposition in space, and new space propulsion options using solid fuel.
What is MEMS?
Micro electro mechanical system is a technique of combining electrical and mechanical combinations together on a chip, to produce a system of miniature dimensions.
MEMS is a integration of a number micro components on a single chip which allow the microsystem to both sense and control the environment.
The components are integrated on a single chip using micro fabrication technologies.
Height and depth gauge linear metrology.pdfq30122000
Height gauges may also be used to measure the height of an object by using the underside of the scriber as the datum. The datum may be permanently fixed or the height gauge may have provision to adjust the scale, this is done by sliding the scale vertically along the body of the height gauge by turning a fine feed screw at the top of the gauge; then with the scriber set to the same level as the base, the scale can be matched to it. This adjustment allows different scribers or probes to be used, as well as adjusting for any errors in a damaged or resharpened probe.
Levelised Cost of Hydrogen (LCOH) Calculator ManualMassimo Talia
The aim of this manual is to explain the
methodology behind the Levelized Cost of
Hydrogen (LCOH) calculator. Moreover, this
manual also demonstrates how the calculator
can be used for estimating the expenses associated with hydrogen production in Europe
using low-temperature electrolysis considering different sources of electricity
Impartiality as per ISO /IEC 17025:2017 StandardMuhammadJazib15
This document provides basic guidelines for imparitallity requirement of ISO 17025. It defines in detial how it is met and wiudhwdih jdhsjdhwudjwkdbjwkdddddddddddkkkkkkkkkkkkkkkkkkkkkkkwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwioiiiiiiiiiiiii uwwwwwwwwwwwwwwwwhe wiqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq gbbbbbbbbbbbbb owdjjjjjjjjjjjjjjjjjjjj widhi owqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq uwdhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhwqiiiiiiiiiiiiiiiiiiiiiiiiiiiiw0pooooojjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj whhhhhhhhhhh wheeeeeeee wihieiiiiii wihe
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This study Examines the Effectiveness of Talent Procurement through the Imple...DharmaBanothu
In the world with high technology and fast
forward mindset recruiters are walking/showing interest
towards E-Recruitment. Present most of the HRs of
many companies are choosing E-Recruitment as the best
choice for recruitment. E-Recruitment is being done
through many online platforms like Linkedin, Naukri,
Instagram , Facebook etc. Now with high technology E-
Recruitment has gone through next level by using
Artificial Intelligence too.
Key Words : Talent Management, Talent Acquisition , E-
Recruitment , Artificial Intelligence Introduction
Effectiveness of Talent Acquisition through E-
Recruitment in this topic we will discuss about 4important
and interlinked topics which are
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...PriyankaKilaniya
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
This presentation is about Food Delivery Systems and how they are developed using the Software Development Life Cycle (SDLC) and other methods. It explains the steps involved in creating a food delivery app, from planning and designing to testing and launching. The slide also covers different tools and technologies used to make these systems work efficiently.
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.