Atoms contain protons, electrons, and neutrons. Protons are positively charged, electrons are negatively charged, and they are located on the outer edges of atoms. The movement and concentration of electrons creates static electricity and electric currents. Static electricity builds up a charge without flowing, while electric current flows from high voltage to low voltage, such as through wires in a circuit. Current can be direct (DC) or alternating (AC). Magnets have north and south poles and magnetic fields that interact with electric fields through electromagnetic induction, which is the basis for technologies like electric motors, generators, and transformers.
definition, speed, production, properties of electromagnetic waves and electromagnetic spectrum. waves in EM spectrum and their application in daily life.
An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. ... An electromagnet works because an electric current produces a magnetic field. Electromagnetism is produced when an electrical current flows through a simple conductor such as a length of wire or cable, and as current passes along the whole of the conductor then a magnetic field is created along the whole of the conductor.
“HEAT”
Heat is a form of energy that flows from warmer bodies to colder bodies.
It is viewed as a form of energy that is transferred from one body to another due to a difference in temperature.
The SI unit of heat is joule (J).
Common unit of heat is calorie.
CALORIE the amount of heat needed to change the temperature of one gram of water from the pressure of the atmosphere.
TEMPERATURE
LAYMAN’S TERM
- It is the degree of hotness or coldness of an object.
Molecular level
- A measure of the average kinetic energy of these molecules.
Based from our sensory experiences:
“Can we use our senses to determine temperature?”
THERMOMETER
TYPES OF THERMOMETER
The most common type of the thermometer.
THERMOCOUPLE
-two different metals (usually copper and iron) that are twisted together
INFRARED THERMOGRAMS
-a device (camera) that measures the amount of radiant energy given off by an object
TEMPERATURE SCALES
TEMPERATURE SCALES
this is a lecture on time value of money which explains the topic time value of money in a very easy and simple way... it also explains some examples on the topic... plus definition of rate of return, real rate of return, inflation premium, nominal interest rate,market risk, maturity risk,liquidity risk,and default risk,
definition, speed, production, properties of electromagnetic waves and electromagnetic spectrum. waves in EM spectrum and their application in daily life.
An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. ... An electromagnet works because an electric current produces a magnetic field. Electromagnetism is produced when an electrical current flows through a simple conductor such as a length of wire or cable, and as current passes along the whole of the conductor then a magnetic field is created along the whole of the conductor.
“HEAT”
Heat is a form of energy that flows from warmer bodies to colder bodies.
It is viewed as a form of energy that is transferred from one body to another due to a difference in temperature.
The SI unit of heat is joule (J).
Common unit of heat is calorie.
CALORIE the amount of heat needed to change the temperature of one gram of water from the pressure of the atmosphere.
TEMPERATURE
LAYMAN’S TERM
- It is the degree of hotness or coldness of an object.
Molecular level
- A measure of the average kinetic energy of these molecules.
Based from our sensory experiences:
“Can we use our senses to determine temperature?”
THERMOMETER
TYPES OF THERMOMETER
The most common type of the thermometer.
THERMOCOUPLE
-two different metals (usually copper and iron) that are twisted together
INFRARED THERMOGRAMS
-a device (camera) that measures the amount of radiant energy given off by an object
TEMPERATURE SCALES
TEMPERATURE SCALES
this is a lecture on time value of money which explains the topic time value of money in a very easy and simple way... it also explains some examples on the topic... plus definition of rate of return, real rate of return, inflation premium, nominal interest rate,market risk, maturity risk,liquidity risk,and default risk,
Electric charges
Current
Potentialand its difference
Circuits
Heating effects
Magnetic effects
Magnetic Field Lines in straight and coiled conductors
Electromagnets
Electromagnetic Induction
Motors and Generators
Basics In electricity ( From Unit 1 to Unit 5).
Atoms and atomics structure.
Types of electricity.
Resistance.
Ohm’s law.
Condenser/ capacitor.
Inductors.
Magnetism.
EMI.
Valves.
Transformer.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Toxic effects of heavy metals : Lead and Arsenicsanjana502982
Heavy metals are naturally occuring metallic chemical elements that have relatively high density, and are toxic at even low concentrations. All toxic metals are termed as heavy metals irrespective of their atomic mass and density, eg. arsenic, lead, mercury, cadmium, thallium, chromium, etc.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
2. ATOMS…
Have neutrons, protons, and electrons.
Protons are positively charged
Electrons are negatively charged
3. ELECTRONS…
Are located on the outer edges of
atoms…they can be moved.
A concentration of electrons in an atom
creates a net negative charge.
If electrons are stripped away, the atom
becomes positively charged.
4. THE WORLD IS FILLED WITH ELECTRICAL
CHARGES:
+
+
-
+
+ +
+
+
+
+
+
-
-
- -
-
-
- - -
5. STATIC ELECTRICITY
The build up of an electric charge on the
surface of an object.
The charge builds up but does not flow.
Static electricity is potential energy. It
does not move. It is stored.
6. STATIC DISCHARGE…
Occurs when there is a loss of static
electricity due to three possible things:
Friction - rubbing
Conduction – direct contact
Induction – through an electrical field
(not direct contact)
7.
8. ELECTRICITY THAT MOVES…
Current: The flow of electrons from one
place to another.
Measured in amperes (amps)
Kinetic energy
9. HOW CAN WE CONTROL CURRENTS?
With circuits.
Circuit: is a path for the flow of electrons.
We use wires.
10. Static electricity is stationary or collects on the surface of
an object, whereas current electricity is flowing very
rapidly through a conductor.
11. The flow of electricity in current electricity has
electrical pressure or voltage. Electric
charges flow from an area of high voltage to
an area of low voltage.
17. THERE ARE 2 TYPES OF CIRCUITS:
Parallel Circuit – there are several
branching paths to the components. If
the circuit is broken at any one branch,
only the components on that branch will
turn off.
19. CONDUCTORS VS. INSULATORS
Conductors – material through which
electric current flows easily.
Insulators – materials through which
electric current cannot move.
21. WHAT IS RESISTANCE?
The opposition to the flow of an electric
current, producing heat.
The greater the resistance, the less
current gets through.
Good conductors have low resistance.
Measured in ohms.
22. WHAT IS VOLTAGE?
The measure of energy given to the
charge flowing in a circuit.
The greater the voltage, the greater the
force or “pressure” that drives the
charge through the circuit.
25. What is magnetism?
Magnetism is the properties and interactions of magnets
The earliest magnets were found naturally in the mineral
magnetite which is abundant the rock-type lodestone.
These magnets were used by the ancient peoples as
compasses to guide sailing vessels.
27. The earth is like a giant magnet!
The nickel iron core of the earth gives the earth a
magnetic field much like a bar magnet.
28. MAGNETS
USUALLY MADE OF IRON
EVERY MAGNET HAS A NORTH AND SOUTH
POLES
LIKE SIMILAR CHARGES REPEL
OPPOSITES ATTRACT
29. FERROMAGNETIC
OBJECTS THAT CAN BE MAGNETIZED
(IRON, COBALT, NICKEL)
3 TYPES OF MAGNETS
LODESTONE – NATURAL (PERMANENT)
ARTIFICAL – INDUCED
ELECTROMAGNET – temporary magnets
produced by moving electric current
30.
31. Ferromagnetic
material such as iron
attracts magnetic
lines of induction,
whereas nonmagnetic
material such as
copper does not.
32. Demonstration of
magnetic lines of
force with iron filings
NORTH &
SOUTH POLES
33. If a single magnet is
broken into smaller
and smaller pieces,
baby magnets result
34. A moving charge creates a magnetic field
When a charged particle is in motion – a magnetic
force field perpendicular to the motion is created
37. RT HAND RULE
Current flow direction of thumb
–
Magnetic filed – fingers
38. ELECTROMAGNET IS CREATED BY:
SOLENOID: Current flowing
through coil of wire
Putting a magnet in the
middle of the coil of wire
increases the strength of the
electromagnet’s magnetic
field
39. A coil of wire is a helix
Supplied with current it is a solenoid
Add an iron core – simple form of
ELECTROMAGNET
40. What is an electromagnet?
When an electric current is passed through a coil of wire
wrapped around a metal core, a very strong magnetic
field is produced. This is called an electromagnet.
41. HOW ELECTRIC & MAGNETIC FIELDS
INTERACT
Faraday discovered that the
magnetic lines of force and the wire
must have a motion relative to each
other to induce an electrical current
42. ELECTROMAGNET INDUCTION
Moving a wire through a magnetic field
will induce a current (Faraday)
Wire or field can move
Moving a magnet through a coil of wire
will induce an electrical current
43. “FARADAY’S LAWS : OR HOW TO INCREASE THE
STRENGTH OF THE INDUCED CURRENT
Increase the Strength of field or size of
magnet
Increase the SPEED of motion
Change the ANGLE (more
perpendicular)
Increase the Number of Turns of coil
44. ELECTROMAGNET INDUCTION
MOVING A BAR
MAGNET THROUGH A
COIL OF WIRE WILL
INDUCE A CURRENT
TO FLOW THROUGH
THAT WIRE
45. What are electric motors?
An electric motor is a device which changes electrical
energy into mechanical energy.
48. GENERATORS
A generator is a device that uses induction to
convert mechanical energy into electrical energy.
49. TRANSFORMERS
A transformer is a device used to change the
voltage in a circuit. AC currents must be used.
75,000 V in the
power lines
120 V in your
p = primary house
s = secondary
50. Transformers are
extremely useful
because they
efficiently change
voltage and current,
while providing the
same total power.
The transformer uses
electromagnetic
induction, similar to a
generator.