An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the "source" of electrons.
An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the "source" of electrons.
An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the "source" of electrons.
An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the "source" of electrons.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
2. Objectives
•At the end of this topic, you should be
able to:
apply the superposition theorem for circuit analysis
apply Thevenin’s theorem to simplify the circuit for
analysis
apply Norton’s theorem to simplify the circuit for analysis
understand maximum power transfer and perform circuit
conversion
3. Superposition Theorem
• The Superposition theorem states that if
a linear system is driven by more than
one independent power source, the total
response is the sum of the individual
responses. The following example will
show the step of finding branches current
using superpostion theorem
4. Refer to the Figure 1, determine the branches current
using superposition theorem.
Figure 1
• Solution
• The application of the superposition theorem is
shown in Figure 1, where it is used to calculate
the branch current. We begin by calculating
the branch current caused by the voltage
source of 120 V. By substituting the ideal
current with open circuit, we deactivate the
current source, as shown in Figure 2.
5. Figure 2
• To calculate the branch current, the node
voltage across the 3Ω resistor must be
known. Therefore
v 1 − 120 v 1
v1
+
+
=0
6
3 2+4
where v1 = 30 V
The equations for the current in each branch,
6. 120 − 30
= 15 A
• i'1 =
6
30
i'2 =
= 10 A
3
30
i'3 = i'4 =
=5A
6
In order to calculate the current cause by
the current source, we deactivate the
ideal voltage source with a short circuit,
as shown
7. • To determine the branch current, solve the node
voltages across the 3Ω dan 4Ω resistors as shown
in Figure 4
v3 v3 v3 − v4
+ +
3 6
2
=0
v4 − v3 v4
+
+ 12 = 0
2
4
• The two node voltages are
8. • By solving these equations, we obtain
• v3 = -12 V
• v4 = -24 V
Now we can find the branches current,
9. To find the actual current of the
circuit, add the currents due to both
the current and voltage source,
10. Thevenin and Norton Equivalent Circuits
M. Leon Thévenin (1857-1926), published
his famous theorem in 1883.
Rs
i
i
+
+
+ V
_
0
v
I0 =
V0
Rs
Rs
v
_
_
Fig.2.17 (a) Thevenin equivalent circuit ; (b) Norton equivalent circuit
v = V0 − Rs i
v
i = I0 −
Rs
The equivalence of these two circuits is a special case of the
Thevenin and Norton Theorem
11. Thevenin & Norton Equivalent Circuits
Thevenin's Theorem states that it is possible to simplify any linear
circuit, no matter how complex, to an equivalent circuit with just a
single voltage source and series resistance connected to a load.
A series combination of Thevenin equivalent voltage source V0 and
Thevenin equivalent resistance Rs
Norton's Theorem states that it is possible to simplify any linear
circuit, no matter how complex, to an equivalent circuit with just a
single current source and parallel resistance connected to a load.
Norton form:
A parallel combination of Norton equivalent current source I0 and
Norton equivalent resistance Rs
12. Thévenin’s Theorem: A resistive circuit can be represented
by one voltage source and one resistor:
RTh
VTh
Resistive Circuit
Thévenin Equivalent Circuit
13. • Example
Refer to the Figure 6, find the Thevenin equivalent
circuit.
•Solution
• In order to find the Thevenin equivalent circuit for the
circuit shown in Figure 6, calculate the open circuit
voltage, vab. Note that when the a, b terminals are
open, there is no current flow to 4Ω resistor. Therefore,
the voltage vab is the same as the voltage across the 3A
current source, labeled v1.
• To find the voltage v1, solve the equations for the
singular node voltage. By choosing the bottom right
node as the reference node,
14. v 1 − 25 v 1
+
−3 = 0
5
20
• By solving the equation, v1 = 32 V. Therefore, the
Thevenin voltage Vth for the circuit is 32 V.
• The next step is to short circuit the terminals and find
the short circuit current for the circuit shown in Figure
7. Note that the current is in the same direction as the
falling voltage at the terminal.
Figure 7
15. Current isc can be found if v2 is known. By using the bottom
right node as the reference node, the equationfor v2 becomes
By solving the above equation, v2 = 16 V. Therefore, the short circuit
current isc is
v 2 − 25 v 2
v
+
−3+ 2 = 0
5
20
4
The Thevenin resistance RTh is
Figure 8 shows the Thevenin equivalent circuit for the Figure 6.
17. Norton’s Theorem
• The Norton equivalent circuit contains an
independent current source which is
parallel to the Norton equivalent
resistance. It can be derived from the
Thevenin equivalent circuit by using
source transformation. Therefore, the
Norton current is equivalent to the short
circuit current at the terminal being
studied, and Norton resistance is
equivalent to Thevenin resistance.
18. •Example 3
Derive the Thevenin and Norton equivalent circuits of Figure 6.
•
Solution
•
Step 1: Source transformation (The 25V voltage
source is converted to a 5 A current source.)
19. Step 2: Combination of parallel source and parallel resistance
Step 3: Source transformation (combined serial resistance to produce the
Thevenin equivalent circuit.)
20. •
Step 4: Source transformation (To produce the
Norton equivalent circuit. The current source is 4A
(I = V/R = 32 V/8 Ω))
a
4A
8Ω
b
Figure 9 Steps in deriving Thevenin and Norton equivalent circuits.
21. Maximum Power Transfer
• Maximum power transfer can be
illustrated by Figure 10. Assume that a
resistance network contains independent
and dependent sources, and terminals a
and b to which the resistance RL is
connected. Then determine the value of
RL that allows the delivery of maximum
power to the load resistor.
23. • Maximum power transfer happens when
the load resistance RL is equal to the
Thevenin equivalent resistance, RTh. To
find the maximum 2power delivered to RL,
2
pmax =
VTh R L
( 2R L )
2
=
VTh
4R L
24. Circuit Transformation
• The configuration of circuit connection can
be changed to make the calculation easier.
There are TWO type of transformations
a
which are Delta (∆) to star connection (Υ)
and vice versa.
R
R
R
1
R
c
a
R
c
R
3
2
b
b
Figure 12 Delta and Star Circuit Connection
25. • Delta (∆) to star (Y) transformation:
R1 R2
Ra =
R 1 + R2 + R3
R2 R3
Rb =
R 1 + R2 + R3
R1 R3
Rc =
R 1 + R2 + R3
26. • Star (Y) to Delta (∆) transformation:
Ra Rb + RbRc + RcRa
R1 =
Rb
Ra Rb + RbRc + RcRa
R2 =
Rc
Ra Rb + RbRc + RcRa
R3 =
Ra
28. Objectives
•At the end of this topic, you should be
able to:
apply the superposition theorem for circuit analysis
apply Thevenin’s theorem to simplify the circuit for
analysis
apply Norton’s theorem to simplify the circuit for analysis
understand maximum power transfer and perform circuit
conversion