2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
Creative operations teams expect increased AI use in 2024. Currently, over half of tasks are not AI-enabled, but this is expected to decrease in the coming year. ChatGPT is the most popular AI tool currently. Business leaders are more actively exploring AI benefits than individual contributors. Most respondents do not believe AI will impact workforce size in 2024. However, some inhibitions still exist around AI accuracy and lack of understanding. Creatives primarily want to use AI to save time on mundane tasks and boost productivity.
Organizational culture includes values, norms, systems, symbols, language, assumptions, beliefs, and habits that influence employee behaviors and how people interpret those behaviors. It is important because culture can help or hinder a company's success. Some key aspects of Netflix's culture that help it achieve results include hiring smartly so every position has stars, focusing on attitude over just aptitude, and having a strict policy against peacocks, whiners, and jerks.
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
PepsiCo provided a safe harbor statement noting that any forward-looking statements are based on currently available information and are subject to risks and uncertainties. It also provided information on non-GAAP measures and directing readers to its website for disclosure and reconciliation. The document then discussed PepsiCo's business overview, including that it is a global beverage and convenient food company with iconic brands, $91 billion in net revenue in 2023, and nearly $14 billion in core operating profit. It operates through a divisional structure with a focus on local consumers.
Content Methodology: A Best Practices Report (Webinar)contently
This document provides an overview of content methodology best practices. It defines content methodology as establishing objectives, KPIs, and a culture of continuous learning and iteration. An effective methodology focuses on connecting with audiences, creating optimal content, and optimizing processes. It also discusses why a methodology is needed due to the competitive landscape, proliferation of channels, and opportunities for improvement. Components of an effective methodology include defining objectives and KPIs, audience analysis, identifying opportunities, and evaluating resources. The document concludes with recommendations around creating a content plan, testing and optimizing content over 90 days.
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
Creative operations teams expect increased AI use in 2024. Currently, over half of tasks are not AI-enabled, but this is expected to decrease in the coming year. ChatGPT is the most popular AI tool currently. Business leaders are more actively exploring AI benefits than individual contributors. Most respondents do not believe AI will impact workforce size in 2024. However, some inhibitions still exist around AI accuracy and lack of understanding. Creatives primarily want to use AI to save time on mundane tasks and boost productivity.
Organizational culture includes values, norms, systems, symbols, language, assumptions, beliefs, and habits that influence employee behaviors and how people interpret those behaviors. It is important because culture can help or hinder a company's success. Some key aspects of Netflix's culture that help it achieve results include hiring smartly so every position has stars, focusing on attitude over just aptitude, and having a strict policy against peacocks, whiners, and jerks.
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
PepsiCo provided a safe harbor statement noting that any forward-looking statements are based on currently available information and are subject to risks and uncertainties. It also provided information on non-GAAP measures and directing readers to its website for disclosure and reconciliation. The document then discussed PepsiCo's business overview, including that it is a global beverage and convenient food company with iconic brands, $91 billion in net revenue in 2023, and nearly $14 billion in core operating profit. It operates through a divisional structure with a focus on local consumers.
Content Methodology: A Best Practices Report (Webinar)contently
This document provides an overview of content methodology best practices. It defines content methodology as establishing objectives, KPIs, and a culture of continuous learning and iteration. An effective methodology focuses on connecting with audiences, creating optimal content, and optimizing processes. It also discusses why a methodology is needed due to the competitive landscape, proliferation of channels, and opportunities for improvement. Components of an effective methodology include defining objectives and KPIs, audience analysis, identifying opportunities, and evaluating resources. The document concludes with recommendations around creating a content plan, testing and optimizing content over 90 days.
How to Prepare For a Successful Job Search for 2024Albert Qian
The document provides guidance on preparing a job search for 2024. It discusses the state of the job market, focusing on growth in AI and healthcare but also continued layoffs. It recommends figuring out what you want to do by researching interests and skills, then conducting informational interviews. The job search should involve building a personal brand on LinkedIn, actively applying to jobs, tailoring resumes and interviews, maintaining job hunting as a habit, and continuing self-improvement. Once hired, the document advises setting new goals and keeping skills and networking active in case of future opportunities.
A report by thenetworkone and Kurio.
The contributing experts and agencies are (in an alphabetical order): Sylwia Rytel, Social Media Supervisor, 180heartbeats + JUNG v MATT (PL), Sharlene Jenner, Vice President - Director of Engagement Strategy, Abelson Taylor (USA), Alex Casanovas, Digital Director, Atrevia (ES), Dora Beilin, Senior Social Strategist, Barrett Hoffher (USA), Min Seo, Campaign Director, Brand New Agency (KR), Deshé M. Gully, Associate Strategist, Day One Agency (USA), Francesca Trevisan, Strategist, Different (IT), Trevor Crossman, CX and Digital Transformation Director; Olivia Hussey, Strategic Planner; Simi Srinarula, Social Media Manager, The Hallway (AUS), James Hebbert, Managing Director, Hylink (CN / UK), Mundy Álvarez, Planning Director; Pedro Rojas, Social Media Manager; Pancho González, CCO, Inbrax (CH), Oana Oprea, Head of Digital Planning, Jam Session Agency (RO), Amy Bottrill, Social Account Director, Launch (UK), Gaby Arriaga, Founder, Leonardo1452 (MX), Shantesh S Row, Creative Director, Liwa (UAE), Rajesh Mehta, Chief Strategy Officer; Dhruv Gaur, Digital Planning Lead; Leonie Mergulhao, Account Supervisor - Social Media & PR, Medulla (IN), Aurelija Plioplytė, Head of Digital & Social, Not Perfect (LI), Daiana Khaidargaliyeva, Account Manager, Osaka Labs (UK / USA), Stefanie Söhnchen, Vice President Digital, PIABO Communications (DE), Elisabeth Winiartati, Managing Consultant, Head of Global Integrated Communications; Lydia Aprina, Account Manager, Integrated Marketing and Communications; Nita Prabowo, Account Manager, Integrated Marketing and Communications; Okhi, Web Developer, PNTR Group (ID), Kei Obusan, Insights Director; Daffi Ranandi, Insights Manager, Radarr (SG), Gautam Reghunath, Co-founder & CEO, Talented (IN), Donagh Humphreys, Head of Social and Digital Innovation, THINKHOUSE (IRE), Sarah Yim, Strategy Director, Zulu Alpha Kilo (CA).
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
The search marketing landscape is evolving rapidly with new technologies, and professionals, like you, rely on innovative paid search strategies to meet changing demands.
It’s important that you’re ready to implement new strategies in 2024.
Check this out and learn the top trends in paid search advertising that are expected to gain traction, so you can drive higher ROI more efficiently in 2024.
You’ll learn:
- The latest trends in AI and automation, and what this means for an evolving paid search ecosystem.
- New developments in privacy and data regulation.
- Emerging ad formats that are expected to make an impact next year.
Watch Sreekant Lanka from iQuanti and Irina Klein from OneMain Financial as they dive into the future of paid search and explore the trends, strategies, and technologies that will shape the search marketing landscape.
If you’re looking to assess your paid search strategy and design an industry-aligned plan for 2024, then this webinar is for you.
5 Public speaking tips from TED - Visualized summarySpeakerHub
From their humble beginnings in 1984, TED has grown into the world’s most powerful amplifier for speakers and thought-leaders to share their ideas. They have over 2,400 filmed talks (not including the 30,000+ TEDx videos) freely available online, and have hosted over 17,500 events around the world.
With over one billion views in a year, it’s no wonder that so many speakers are looking to TED for ideas on how to share their message more effectively.
The article “5 Public-Speaking Tips TED Gives Its Speakers”, by Carmine Gallo for Forbes, gives speakers five practical ways to connect with their audience, and effectively share their ideas on stage.
Whether you are gearing up to get on a TED stage yourself, or just want to master the skills that so many of their speakers possess, these tips and quotes from Chris Anderson, the TED Talks Curator, will encourage you to make the most impactful impression on your audience.
See the full article and more summaries like this on SpeakerHub here: https://speakerhub.com/blog/5-presentation-tips-ted-gives-its-speakers
See the original article on Forbes here:
http://www.forbes.com/forbes/welcome/?toURL=http://www.forbes.com/sites/carminegallo/2016/05/06/5-public-speaking-tips-ted-gives-its-speakers/&refURL=&referrer=#5c07a8221d9b
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
Everyone is in agreement that ChatGPT (and other generative AI tools) will shape the future of work. Yet there is little consensus on exactly how, when, and to what extent this technology will change our world.
Businesses that extract maximum value from ChatGPT will use it as a collaborative tool for everything from brainstorming to technical maintenance.
For individuals, now is the time to pinpoint the skills the future professional will need to thrive in the AI age.
Check out this presentation to understand what ChatGPT is, how it will shape the future of work, and how you can prepare to take advantage.
The document provides career advice for getting into the tech field, including:
- Doing projects and internships in college to build a portfolio.
- Learning about different roles and technologies through industry research.
- Contributing to open source projects to build experience and network.
- Developing a personal brand through a website and social media presence.
- Networking through events, communities, and finding a mentor.
- Practicing interviews through mock interviews and whiteboarding coding questions.
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
1. Core updates from Google periodically change how its algorithms assess and rank websites and pages. This can impact rankings through shifts in user intent, site quality issues being caught up to, world events influencing queries, and overhauls to search like the E-A-T framework.
2. There are many possible user intents beyond just transactional, navigational and informational. Identifying intent shifts is important during core updates. Sites may need to optimize for new intents through different content types and sections.
3. Responding effectively to core updates requires analyzing "before and after" data to understand changes, identifying new intents or page types, and ensuring content matches appropriate intents across video, images, knowledge graphs and more.
A brief introduction to DataScience with explaining of the concepts, algorithms, machine learning, supervised and unsupervised learning, clustering, statistics, data preprocessing, real-world applications etc.
It's part of a Data Science Corner Campaign where I will be discussing the fundamentals of DataScience, AIML, Statistics etc.
Time Management & Productivity - Best PracticesVit Horky
Here's my presentation on by proven best practices how to manage your work time effectively and how to improve your productivity. It includes practical tips and how to use tools such as Slack, Google Apps, Hubspot, Google Calendar, Gmail and others.
The six step guide to practical project managementMindGenius
The six step guide to practical project management
If you think managing projects is too difficult, think again.
We’ve stripped back project management processes to the
basics – to make it quicker and easier, without sacrificing
the vital ingredients for success.
“If you’re looking for some real-world guidance, then The Six Step Guide to Practical Project Management will help.”
Dr Andrew Makar, Tactical Project Management
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
During this webinar, Anand Bagmar demonstrates how AI tools such as ChatGPT can be applied to various stages of the software development life cycle (SDLC) using an eCommerce application case study. Find the on-demand recording and more info at https://applitools.info/b59
Key takeaways:
• Learn how to use ChatGPT to add AI power to your testing and test automation
• Understand the limitations of the technology and where human expertise is crucial
• Gain insight into different AI-based tools
• Adopt AI-based tools to stay relevant and optimize work for developers and testers
* ChatGPT and OpenAI belong to OpenAI, L.L.C.
The document discusses various AI tools from OpenAI like GPT-3 and DALL-E 2, as well as ChatGPT. It explores how search engines are using AI and things to consider around AI-generated content. Potential SEO uses of ChatGPT are also presented, such as generating content at scale, conducting topic research, and automating basic coding tasks. The document encourages further reading on using ChatGPT for SEO purposes.
More than Just Lines on a Map: Best Practices for U.S Bike Routes
This session highlights best practices and lessons learned for U.S. Bike Route System designation, as well as how and why these routes should be integrated into bicycle planning at the local and regional level.
Presenters:
Presenter: Kevin Luecke Toole Design Group
Co-Presenter: Virginia Sullivan Adventure Cycling Association
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...DevGAMM Conference
Has your project been caught in a storm of deadlines, clashing requirements, and the need to change course halfway through? If yes, then check out how the administration team navigated through all of this, relocating 160 people from 3 countries and opening 2 offices during the most turbulent time in the last 20 years. Belka Games’ Chief Administrative Officer, Katerina Rudko, will share universal approaches and life hacks that can help your project survive unstable periods when there seem to be too many tasks and a lack of time and people.
This presentation was designed to provide strategic recommendations for a brand in decline. The deck also incorporates a situational assessment, including a brand identity, positioning, architecture, and portfolio strategy for the Brand.
Presentation originally created for NYU Stern's Brand Strategy course. Design by Erica Santiago & Chris Alexander.
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellSaba Software
According to the latest State of the American Manager report from Gallup, employees who have regular meetings with their managers are almost three times as likely to be engaged as those who don’t. These regular check-ins keep managers and employees in sync and aligned. Want to see better manager/employee relationships in your organisation? Then make an all-in commitment to 1:1 meetings. Not sure how? You’ve come to the right place.
In this webinar with Jamie Resker, Founder and Practice Leader for Employee Performance Solutions (EPS), and Teala Wilson, Talent Management Consultant at Saba Software, you’ll get the inside track on how to hold effective 1:1 meetings, including tips for getting managers on board.
• Go beyond discussing the status of everyday work to higher level topics, including recognition, performance, development, and career aspirations
• Learn how to decide meeting frequency, what to cover, as well as roles and responsibilities of the manager and employee
• Understand how managers can build trust and make it comfortable for employees to provide upward feedback
• Unite your organisation with a unified approach to 1:1 meetings
Join us for this 1-hour webinar to get practical tips for building better manager-employee relationships with intention and purpose.
About the Speakers
Jamie Resker - Founder and Practice Leader for Employee Performance Solutions (EPS)
Jamie Resker, Practice Leader and Founder of Employee Performance Solutions, is a recognized innovator in performance management. She is the originator of the-the Performance Continuum Feedback Method® and Conversations to Optimize Employee Performance training program; tools and training that reshape communications between managers and employees to drive and align performance. Jamie is on the faculty for the Northeast Human Resources Association, is a contributor to Halogen Software's Talent Space Blog, and is an editorial advisory board member for HR Examiner.
Teala Wilson - Senior Consultant, Strategic Services, Saba Software
Teala is a Talent Management Consultant at Halogen Software, now a part of Saba Software. She has worked with teams on a national and global level supporting human resources in areas such as performance management, recruitment, employee benefit programs, training and talent development, workforce planning and internal communications. Teala also has a personal passion for visual arts and design.
Want to learn more? Join us for an upcoming Product Tour!
http://bit.ly/2yitfqu
This video by Simplilearn will explain to you Introduction to C Programming Language. Introduction to C Programming Language Tutorial For Beginners will explain to you the C language's history, C's importance, its features, real-world applications, and some of its advantages and disadvantages.
00:00 Introduction to C
1:42-History of C language
Dennis Ritchie, a computer scientist, could identify the gaps and tap out the best features from both B and BCPL languages to invent a new hybrid.
Hence, C was born in 1972 at Bell Laboratories. A remarkably simple and highly readable programming language resulted in groundbreaking advancements in the IT industry.
2:48-Importance and unraveling the powerful capabilities of C,
The widespread use of C started to take over the IT industry. Unraveling the potential of C, the designers began to discover new possibilities that led them to focus on the big picture.
3:56-C's cutting-edge features
The designers at Bell Laboratories ensured that their programming language solved the issues with B and BCPL and the ones they had foreseen.
6:35-The popular real-world applications of C
-UNIX operating system
-google file system
-Mozilla
-Graphical user interface
8:30-The advantages and disadvantages of C
10:34-The popular IT companies and their domains that employ C
· MasterCard
· IBM
· Flipkart
· Dell
· Twitter
· GitHub and twitch
11:09-First c program.
🔥 Explore our FREE courses with completion certificates: https://www.simplilearn.com/skillup-f...
✅Subscribe to our Channel to learn more about the top Technologies: https://bit.ly/2VT4WtH
⏩ Check out the C++ Programming training videos: https://www.youtube.com/playlist?list...
#IntroductiontoCProgrammingLanguage #CLanguage #CProgramming #CProgram #CProgrammingLanguage #LearnCProgramming #HowToCodeInCForBeginners #CTutorialForBeginners #LearnCProgramming #Simplilearn
Dennis Ritchie, a computer scientist, was able to identify the gaps and tap out the best features from both B and BCPL languages to invent a new hybrid.
Hence, C was born in 1972 at Bell Laboratories. A remarkably simple and highly readable programming language resulted in groundbreaking advancements in the IT industry.
✅What is C++ Programming?
C++ is an enhanced and extended version of C programming language, developed by Bjarne Stroustrup in 1979 as part of his Ph.D. project. Bjarne developed what he called ‘C with Classes’ (later renamed C++) because he felt limited by the existing programming languages that were not ideal for large scale projects. He used C to build what he wanted because C was already a general-purpose language that was efficient and fast in its operations.
✅C++ Career Prospects:
With just C++ programming expertise, you will have excellent job opportunities, salaries, and career prospects. However, for a career based on programming languages such as Java and Python (which are in more demand than C++) or for careers based on front-end, back-end, and full-stack
How to Prepare For a Successful Job Search for 2024Albert Qian
The document provides guidance on preparing a job search for 2024. It discusses the state of the job market, focusing on growth in AI and healthcare but also continued layoffs. It recommends figuring out what you want to do by researching interests and skills, then conducting informational interviews. The job search should involve building a personal brand on LinkedIn, actively applying to jobs, tailoring resumes and interviews, maintaining job hunting as a habit, and continuing self-improvement. Once hired, the document advises setting new goals and keeping skills and networking active in case of future opportunities.
A report by thenetworkone and Kurio.
The contributing experts and agencies are (in an alphabetical order): Sylwia Rytel, Social Media Supervisor, 180heartbeats + JUNG v MATT (PL), Sharlene Jenner, Vice President - Director of Engagement Strategy, Abelson Taylor (USA), Alex Casanovas, Digital Director, Atrevia (ES), Dora Beilin, Senior Social Strategist, Barrett Hoffher (USA), Min Seo, Campaign Director, Brand New Agency (KR), Deshé M. Gully, Associate Strategist, Day One Agency (USA), Francesca Trevisan, Strategist, Different (IT), Trevor Crossman, CX and Digital Transformation Director; Olivia Hussey, Strategic Planner; Simi Srinarula, Social Media Manager, The Hallway (AUS), James Hebbert, Managing Director, Hylink (CN / UK), Mundy Álvarez, Planning Director; Pedro Rojas, Social Media Manager; Pancho González, CCO, Inbrax (CH), Oana Oprea, Head of Digital Planning, Jam Session Agency (RO), Amy Bottrill, Social Account Director, Launch (UK), Gaby Arriaga, Founder, Leonardo1452 (MX), Shantesh S Row, Creative Director, Liwa (UAE), Rajesh Mehta, Chief Strategy Officer; Dhruv Gaur, Digital Planning Lead; Leonie Mergulhao, Account Supervisor - Social Media & PR, Medulla (IN), Aurelija Plioplytė, Head of Digital & Social, Not Perfect (LI), Daiana Khaidargaliyeva, Account Manager, Osaka Labs (UK / USA), Stefanie Söhnchen, Vice President Digital, PIABO Communications (DE), Elisabeth Winiartati, Managing Consultant, Head of Global Integrated Communications; Lydia Aprina, Account Manager, Integrated Marketing and Communications; Nita Prabowo, Account Manager, Integrated Marketing and Communications; Okhi, Web Developer, PNTR Group (ID), Kei Obusan, Insights Director; Daffi Ranandi, Insights Manager, Radarr (SG), Gautam Reghunath, Co-founder & CEO, Talented (IN), Donagh Humphreys, Head of Social and Digital Innovation, THINKHOUSE (IRE), Sarah Yim, Strategy Director, Zulu Alpha Kilo (CA).
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
The search marketing landscape is evolving rapidly with new technologies, and professionals, like you, rely on innovative paid search strategies to meet changing demands.
It’s important that you’re ready to implement new strategies in 2024.
Check this out and learn the top trends in paid search advertising that are expected to gain traction, so you can drive higher ROI more efficiently in 2024.
You’ll learn:
- The latest trends in AI and automation, and what this means for an evolving paid search ecosystem.
- New developments in privacy and data regulation.
- Emerging ad formats that are expected to make an impact next year.
Watch Sreekant Lanka from iQuanti and Irina Klein from OneMain Financial as they dive into the future of paid search and explore the trends, strategies, and technologies that will shape the search marketing landscape.
If you’re looking to assess your paid search strategy and design an industry-aligned plan for 2024, then this webinar is for you.
5 Public speaking tips from TED - Visualized summarySpeakerHub
From their humble beginnings in 1984, TED has grown into the world’s most powerful amplifier for speakers and thought-leaders to share their ideas. They have over 2,400 filmed talks (not including the 30,000+ TEDx videos) freely available online, and have hosted over 17,500 events around the world.
With over one billion views in a year, it’s no wonder that so many speakers are looking to TED for ideas on how to share their message more effectively.
The article “5 Public-Speaking Tips TED Gives Its Speakers”, by Carmine Gallo for Forbes, gives speakers five practical ways to connect with their audience, and effectively share their ideas on stage.
Whether you are gearing up to get on a TED stage yourself, or just want to master the skills that so many of their speakers possess, these tips and quotes from Chris Anderson, the TED Talks Curator, will encourage you to make the most impactful impression on your audience.
See the full article and more summaries like this on SpeakerHub here: https://speakerhub.com/blog/5-presentation-tips-ted-gives-its-speakers
See the original article on Forbes here:
http://www.forbes.com/forbes/welcome/?toURL=http://www.forbes.com/sites/carminegallo/2016/05/06/5-public-speaking-tips-ted-gives-its-speakers/&refURL=&referrer=#5c07a8221d9b
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
Everyone is in agreement that ChatGPT (and other generative AI tools) will shape the future of work. Yet there is little consensus on exactly how, when, and to what extent this technology will change our world.
Businesses that extract maximum value from ChatGPT will use it as a collaborative tool for everything from brainstorming to technical maintenance.
For individuals, now is the time to pinpoint the skills the future professional will need to thrive in the AI age.
Check out this presentation to understand what ChatGPT is, how it will shape the future of work, and how you can prepare to take advantage.
The document provides career advice for getting into the tech field, including:
- Doing projects and internships in college to build a portfolio.
- Learning about different roles and technologies through industry research.
- Contributing to open source projects to build experience and network.
- Developing a personal brand through a website and social media presence.
- Networking through events, communities, and finding a mentor.
- Practicing interviews through mock interviews and whiteboarding coding questions.
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
1. Core updates from Google periodically change how its algorithms assess and rank websites and pages. This can impact rankings through shifts in user intent, site quality issues being caught up to, world events influencing queries, and overhauls to search like the E-A-T framework.
2. There are many possible user intents beyond just transactional, navigational and informational. Identifying intent shifts is important during core updates. Sites may need to optimize for new intents through different content types and sections.
3. Responding effectively to core updates requires analyzing "before and after" data to understand changes, identifying new intents or page types, and ensuring content matches appropriate intents across video, images, knowledge graphs and more.
A brief introduction to DataScience with explaining of the concepts, algorithms, machine learning, supervised and unsupervised learning, clustering, statistics, data preprocessing, real-world applications etc.
It's part of a Data Science Corner Campaign where I will be discussing the fundamentals of DataScience, AIML, Statistics etc.
Time Management & Productivity - Best PracticesVit Horky
Here's my presentation on by proven best practices how to manage your work time effectively and how to improve your productivity. It includes practical tips and how to use tools such as Slack, Google Apps, Hubspot, Google Calendar, Gmail and others.
The six step guide to practical project managementMindGenius
The six step guide to practical project management
If you think managing projects is too difficult, think again.
We’ve stripped back project management processes to the
basics – to make it quicker and easier, without sacrificing
the vital ingredients for success.
“If you’re looking for some real-world guidance, then The Six Step Guide to Practical Project Management will help.”
Dr Andrew Makar, Tactical Project Management
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
During this webinar, Anand Bagmar demonstrates how AI tools such as ChatGPT can be applied to various stages of the software development life cycle (SDLC) using an eCommerce application case study. Find the on-demand recording and more info at https://applitools.info/b59
Key takeaways:
• Learn how to use ChatGPT to add AI power to your testing and test automation
• Understand the limitations of the technology and where human expertise is crucial
• Gain insight into different AI-based tools
• Adopt AI-based tools to stay relevant and optimize work for developers and testers
* ChatGPT and OpenAI belong to OpenAI, L.L.C.
The document discusses various AI tools from OpenAI like GPT-3 and DALL-E 2, as well as ChatGPT. It explores how search engines are using AI and things to consider around AI-generated content. Potential SEO uses of ChatGPT are also presented, such as generating content at scale, conducting topic research, and automating basic coding tasks. The document encourages further reading on using ChatGPT for SEO purposes.
More than Just Lines on a Map: Best Practices for U.S Bike Routes
This session highlights best practices and lessons learned for U.S. Bike Route System designation, as well as how and why these routes should be integrated into bicycle planning at the local and regional level.
Presenters:
Presenter: Kevin Luecke Toole Design Group
Co-Presenter: Virginia Sullivan Adventure Cycling Association
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...DevGAMM Conference
Has your project been caught in a storm of deadlines, clashing requirements, and the need to change course halfway through? If yes, then check out how the administration team navigated through all of this, relocating 160 people from 3 countries and opening 2 offices during the most turbulent time in the last 20 years. Belka Games’ Chief Administrative Officer, Katerina Rudko, will share universal approaches and life hacks that can help your project survive unstable periods when there seem to be too many tasks and a lack of time and people.
This presentation was designed to provide strategic recommendations for a brand in decline. The deck also incorporates a situational assessment, including a brand identity, positioning, architecture, and portfolio strategy for the Brand.
Presentation originally created for NYU Stern's Brand Strategy course. Design by Erica Santiago & Chris Alexander.
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellSaba Software
According to the latest State of the American Manager report from Gallup, employees who have regular meetings with their managers are almost three times as likely to be engaged as those who don’t. These regular check-ins keep managers and employees in sync and aligned. Want to see better manager/employee relationships in your organisation? Then make an all-in commitment to 1:1 meetings. Not sure how? You’ve come to the right place.
In this webinar with Jamie Resker, Founder and Practice Leader for Employee Performance Solutions (EPS), and Teala Wilson, Talent Management Consultant at Saba Software, you’ll get the inside track on how to hold effective 1:1 meetings, including tips for getting managers on board.
• Go beyond discussing the status of everyday work to higher level topics, including recognition, performance, development, and career aspirations
• Learn how to decide meeting frequency, what to cover, as well as roles and responsibilities of the manager and employee
• Understand how managers can build trust and make it comfortable for employees to provide upward feedback
• Unite your organisation with a unified approach to 1:1 meetings
Join us for this 1-hour webinar to get practical tips for building better manager-employee relationships with intention and purpose.
About the Speakers
Jamie Resker - Founder and Practice Leader for Employee Performance Solutions (EPS)
Jamie Resker, Practice Leader and Founder of Employee Performance Solutions, is a recognized innovator in performance management. She is the originator of the-the Performance Continuum Feedback Method® and Conversations to Optimize Employee Performance training program; tools and training that reshape communications between managers and employees to drive and align performance. Jamie is on the faculty for the Northeast Human Resources Association, is a contributor to Halogen Software's Talent Space Blog, and is an editorial advisory board member for HR Examiner.
Teala Wilson - Senior Consultant, Strategic Services, Saba Software
Teala is a Talent Management Consultant at Halogen Software, now a part of Saba Software. She has worked with teams on a national and global level supporting human resources in areas such as performance management, recruitment, employee benefit programs, training and talent development, workforce planning and internal communications. Teala also has a personal passion for visual arts and design.
Want to learn more? Join us for an upcoming Product Tour!
http://bit.ly/2yitfqu
This video by Simplilearn will explain to you Introduction to C Programming Language. Introduction to C Programming Language Tutorial For Beginners will explain to you the C language's history, C's importance, its features, real-world applications, and some of its advantages and disadvantages.
00:00 Introduction to C
1:42-History of C language
Dennis Ritchie, a computer scientist, could identify the gaps and tap out the best features from both B and BCPL languages to invent a new hybrid.
Hence, C was born in 1972 at Bell Laboratories. A remarkably simple and highly readable programming language resulted in groundbreaking advancements in the IT industry.
2:48-Importance and unraveling the powerful capabilities of C,
The widespread use of C started to take over the IT industry. Unraveling the potential of C, the designers began to discover new possibilities that led them to focus on the big picture.
3:56-C's cutting-edge features
The designers at Bell Laboratories ensured that their programming language solved the issues with B and BCPL and the ones they had foreseen.
6:35-The popular real-world applications of C
-UNIX operating system
-google file system
-Mozilla
-Graphical user interface
8:30-The advantages and disadvantages of C
10:34-The popular IT companies and their domains that employ C
· MasterCard
· IBM
· Flipkart
· Dell
· Twitter
· GitHub and twitch
11:09-First c program.
🔥 Explore our FREE courses with completion certificates: https://www.simplilearn.com/skillup-f...
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#IntroductiontoCProgrammingLanguage #CLanguage #CProgramming #CProgram #CProgrammingLanguage #LearnCProgramming #HowToCodeInCForBeginners #CTutorialForBeginners #LearnCProgramming #Simplilearn
Dennis Ritchie, a computer scientist, was able to identify the gaps and tap out the best features from both B and BCPL languages to invent a new hybrid.
Hence, C was born in 1972 at Bell Laboratories. A remarkably simple and highly readable programming language resulted in groundbreaking advancements in the IT industry.
✅What is C++ Programming?
C++ is an enhanced and extended version of C programming language, developed by Bjarne Stroustrup in 1979 as part of his Ph.D. project. Bjarne developed what he called ‘C with Classes’ (later renamed C++) because he felt limited by the existing programming languages that were not ideal for large scale projects. He used C to build what he wanted because C was already a general-purpose language that was efficient and fast in its operations.
✅C++ Career Prospects:
With just C++ programming expertise, you will have excellent job opportunities, salaries, and career prospects. However, for a career based on programming languages such as Java and Python (which are in more demand than C++) or for careers based on front-end, back-end, and full-stack
4. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 4 af 32
SKILABOÐ FRÁ HÖFUNDI
Upplýsingarnar í þessu skjali eru settar fram miðað við að lesandi hafi grunn þekkingu á
álframleiðslu ásamt tæknilegum skilningi.
Einnig er lesanda bent á að vinsamlegast ekki fjölfalda né áfram senda þetta skjal eða
neinn hluta af því nema með leyfi höfundar.
5. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 5 af 32
TILGANGUR
Tilgangur þessarar rannsóknar var að kanna með einhverjum hætti ástæðu bognunar
stamma á göfflum hjá álframleiðandanum Norðurál og einnig að skoða hvernig þeir
bogna. Lengi vel hafa tilgátur verið á lofti um að stammar bogni með jöfnum radíus út
alla lengd þeirra. Hinsvegar telur höfundur að slík bognun sé afar sjaldgæf sökum
fyrirkomulags þjónustukrana og að í raun sé algengara að stammar bogni með einni
ákveðinni beygju neðarlega á stammanum. Þar er vægið mest og mikill hiti sem kemur
frá kerinu hefur einnig haft talsverð áhrif á flotmörk álsins í stömmunum.
Myndir hér fyrir neðan skilgreinir þau hugtök sem koma fram í skjalinu varðandi
gaffalsamsetningar.
6. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 6 af 32
FRAMKVÆMD
Rannsóknin skiptist í þrjá hluta:
• Byrjað var á vettvangsferð í kerskála og skautsmiðju Norðuráls og stammar
skoðaðir. Síðan var rætt við fjölmarga starfsmenn á hvorum stað til að fá álit
þeirra sem vinna með gafflana á ástæðum bognunar þeirra. Einnig var farið í
Vélsmiðju Péturs Auðuns og skoðaðir stammar en hjá þeirri vélsmiðju fara
viðgerðir fram á göfflum Norðuráls. Einnig var rætt við starfsmenn vélsmiðjunar
varðandi viðgerðir þeirra.
• Síðan var rannsakaður hiti í stömmum á meðan þeir voru í kerjunum. Smíðuð
var merkistika sem brugðið var á stamma gaffalsins til að merkja með jöfnu
millibili mælipunkta. Hitastigsmælingar voru svo teknar með innrauðum
hitamæli í þessum punktum á 20 stömmum.
• Að lokum voru tekin sýni úr stamma og þau togþolsprófuð. Sýnin voru tekin (úr
völsunarstefnu efnisins) mjög ofarlega úr stammanum þar sem hiti og kraftar
hafa ekki haft eins mikil áhrif á efnið.
VETTVANGSFERÐIR
Farnar voru margar ferðir í Norðurál og Vélsmiðju Péturs Auðuns til að skoða bogna
stamma. Engin sérstakur búnaður var notaður annar en mælistokkur.
HITAMÆLINGAR
Þegar ákveðið var hvaða ker skildu tekin fyrir var skoðuð hæð skautanna í kerjunum og
valin ker með sem flestum skautum sem væru orðin vel eydd (búin að vera lengi í kerinu
eða allt að 29 daga). Þó var seinna kerið með fjórum nýjum skautum í, en það er gott til
samanburðar.
Til að mælingarnar væru sem nákvæmastar var sett saman merkistika eins og sjá má á
mynd 1. Þessi stika var notuð til að merkja upp stammana með 20cm millibili frá
tvímálmstenginu og upp.
7. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 7 af 32
MYND 1
Reynst getur hættulegt að bera málmstöng upp að skauti þar sem hætta er á að stytta
leið straumsins frá tengingu skautbrúar að þeim stað sem stöng yrði rekin utan í. Þar af
leiðandi var kosið að nota timbur kústskaft og einangrunarlímband til að komast hjá
þessari hættu. Hinsvegar var heitgalvaniseraður 2“ nagli og ál krítarstokkur notaður en
þar sem lengd þeirra var í lágmarki þá var ekki talin hætta á ferð.
Til að mæla svo hitann í þessum mælipunktum var fengin að láni frá Vit innrauður
hitamælir frá Fluke af gerðinni 63 eins og sjá má á mynd 2.
MYND 2
8. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 8 af 32
TOGÞOLSPRÓFUN
Til þess að gera sér betur grein fyrir þeim kröftum sem þarf til að beygja (eða rétta)
stamma þá er nauðsynlegt að vita hvernig efni er í stammanum. Framkvæmd var
togþolsprófun hjá Iðntæknistofnun Íslands þann 09. Október 2007 í boði Norðuráls þar
sem þrjú sýni voru tekin í völsunarstefnu úr einum stamma sem fengin var að láni hjá
Vélsmiðju Péturs Auðuns.
Mynd 4 sýnir búnaðinn sem notaður var í togþolsprófuninni en hann er frá fyrirtækinu
MTS og er staðsettur í húsnæði Iðntæknistofnunar Keldnaholti.
MYND 3
9. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 9 af 32
Til ýtarlegri myndrænnar útskýringar á hitamælinga‐ og togþolsferli er mynd 3.
MYND 4
10. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 10 af 32
NIÐURSTÖÐUR
Þær mælingar á bognun stamma sem náðust gáfu til kynna að útbeygja virðist ekki
verða meiri en 30cm án þess að tvímálmstengið fari að láta á sjá og telst þar með ónýtt.
Eftir samtöl við fjölmarga starfsmenn bæði kerskála og skautsmiðju Norðuráls ásamt
fjölda starfsmanna Stímis kom í ljós að skoðanir manna á ástæðum bognunar stamma
eru fjölmargar. Þá var brugðið á það ráð að elta kerþjónustukranana og fylgjast með
aðgerðum þeirra. Hér fyrir neðan gefur að líta þær ástæður fyrir bognun sem samtöl
leyddu í ljós svo og þau sem höfundur varð vitni að í eftirlitsferðum.
ÁSTÆÐUR BOGNANNA
• Þegar gaffalsamsetning er tekin upp með þjónustukrananum og verið er að
flytja hana á sinn stað í kerinu vill það gerast að stjórnandinn rekur skautið
utan í einhverjar hindranir á leiðinni. Þetta telst sem slys og stammar sem
bogna á þennan hátt bogna á ýmsan hátt en eru afar sjaldgæfir.
• Þegar verið er að setja gaffalsamsetninguna ofan í kerið þá kemur stundum
fyrir að ekki hefur verið tekið nóg úr baðefninu (gert með kló á
þjónustukrana) og því passar skautið ekki í gatið. Þegar þetta uppgötvast er
óvanalegt að gaffalsamsetningin sé sett niður og kló þjónustukranans
brugðið á baðefnið á nýjan leik. Það telst sem tímasóun og er í
undantekningar tilfellum gert. En hér er í raun um þrjú tilfelli að ræða:
o Baðefnið er of mikið í hliðum gats. Þá er skaut sett ofan í og skakað til
hliðanna og með því er stamminn beygður. Á þennan hátt bognar
hann til hliðanna en ekki fram eða aftur eins og vaninn er. Hinsvegar
er þetta ekki mjög algeng bognun þar sem stjórnendur krananna læra
fljótt hversu mikið þeir þurfa að fjarlægja til að koma nýju skauti
fyrir.
o Baðefnið er of mikið framan og aftan við skaut. Þá er skautið sett ofan
í og er klemmuarmur þjónustukranans (sem losar og herðir uppá
skautklemmu og fjarlægir eða kemur henni fyrir) ýtt á stammann til
að koma honum nær skautbrúnni því hann leggst ekki nægilega vel
upp að henni. Hér skiptir reynsla stjórnandans aftur miklu máli og
reynsla hans kemur í veg fyrir þetta vandamál.
o Hér er um sama vandamál og hið fyrrnefnda en nú er talið að
skautklemman sé hert að þegar stamminn er ekki alveg upp að
skautbrú og beygir hann þannig. Þetta er misskilningur. Með því að
fylgjast með skautskiptum í kerjum er það alveg ljóst að
skautklemman fer ekki á sinn stað nema að skaut liggi vel upp að
skautbrúnni. Enn og aftur er þetta ekki mjög algeng bognun.
11. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 11 af 32
• Þegar verið er að taka gaffalsamsetninguna úr kerinu ánþess að brjóta
baðefnið nægilega og toga með þjónustukrananum í stammann lárétt. Hér
kemur megin ástæða bognunar á stömmum og einnig uppspretta ágreinings í
þeim efnum. Áður hefur verið talið að stammarnir bogni með jöfnum radíus
út lengd stammans þegar verið er að fjarlægja gaffalsamsetninguna úr
kerinu. Það er í raun ekki svo. Stamminn er mjög heitur neðst en fer kólnandi
þegar ofar dregur. Þannig að þegar þjónustukraninn tekur í stamann og togar
þá bognar hann með einni ákveðinni beygju þar sem vægið er mest og
varminn er mestur. Til að beygja með umræddum radíus þyrfti
þjónustukraninn að geta klemmt stammann og beitt vægi efst á stammann
ásamt því að toga hann út lágrétt. Hönnun klemmu á þjónustukrana bíður
ekki upp á slíkt vægi. Klemman stingur pinnum í gat efst á stammanum en
klemmir ekki með nægilegu krafti til að mynda vægi efst á stammanum.
Þrátt fyrir að líklegasta skýringin á bognun sé sú síðast nefnda þá er talsvert um að
stamma bogni milli 40 – 50cm fyrir ofan tvímálstengið. Hinsvegar er mun auðveldara að
koma auga á þessa stamma heldur en þá sem eru bognir við tvímálmstengið. Líklegasta
skýringin er að þeir séu að bogna þegar verið er að koma þeim í kerið og þá með
einhverjum þeim hætti sem talin var upp hér að ofan.
Einu vill höfundur þó koma að. Vinnureglur hjá álvernunum varðandi stjórnun
þjónustukrananna eru mjög skýrar og reynsla mikil hjá stjórnendunum. Allar
ástæðurnar nema sú seinasta eru sjaldgæfar og í raun myndu teljast sem slys. Þó að
megin þorri stamma bogni þegar verið er að taka þá upp úr kerjunum þá er það ekki
endilega stjórnandanum að kenna. Það er t.d. ekki hægt að brjóta baðefnið aftan við
skautið og það er í raun mjög erfitt að meitla meðfram skauti þannig að það sé alveg
laust í kerinu.
12. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 12 af 32
HITI Í STÖMMUM
Niðurstöður mælinganna má finna í töflum 1 og 2 í viðauka A en línurit 1 sýnir
meðaltalshita yfir stamma sem hafa verið lengi í kerjunum ásamt efri og neðri mörkum
staðalfrávika.
LÍNURIT 1
Um það bil 1200mm frá tvímálmstenginu var tengingin við skautbrúnna og sést það
greinilega á línuritinu þar sem hitastigslækkunin er nokkuð línulega upp stammann
þangað til komið er að klemmunni. Þar fyrir ofan er hitastigið nokkuð jafnt út stammann.
0
50
100
150
200
250
1780 1600 1400 1200 1000 800 600 400 200 0
Hitastig(°C)
Hæð frá tvímálmstengi (mm)
Meðalhiti stamma þar sem skautin eru mikið eydd
Efri mörk frávika
Meðalhiti
Neðri mörk frávika
13. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 13 af 32
TOGÞOL STAMMA
Teknir voru 200mm af stammanum ofan frá (þar sem gatið er) áður en teknir voru aðrir
200mm sem sýnin voru svo unnin úr.
Neðsta sýni á Mynd 5 sýnir hvernig sýnin voru undirbúin en það var gert samkvæmt
staðli DIN 50125 (Viðauki C). Næstu þrjú sýni þar fyrir ofan sýna hvernig þau líta út eftir
prófun.
MYND 5
Á mynd 6 má svo betur sjá hvernig brotin líta út.
MYND 6
14. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 14 af 32
Línurit 2 sýnir niðustöður togþolsprófunarinnar en í viðauka C er að finna sitt hvort
línuritið fyrir hverja mælingu fyrir sig svo og tölulegar niðurstöður mælinganna.
Línurnar liggja mjög nálægt hvorri annari en brotlengingin virðist talsvert breytileg en
ástæða þess er að sýnin brotnuðu utan lengdarmælisins og því ekki marktækt.
LÍNURIT 2
NIÐURSTÖÐUR TOGÞOLSPRÓFUNAR
Meðaltal flotmarka: 50,3 MPa
Meðaltal togþols: 127 MPa
Fjaðurstuðull efnis: 44.572 MPa
Meðaltal brotlenginar: 15,8 % (illmarktækt sökum staðsetningar brota)
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16. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 16 af 32
Með því að bera saman meðalhitastigið úr línuriti 1 og togþolið í línuriti 3 ásamt því að
leiðrétta fyrir eiginleika efnisins út frá togþolsprófuninni fáum við línurit 4. Það er
nálgun á togþol í efninu í stömmunum miðað við hitastigið í því eftir viðveru þess í
hitanum í 102 klukkustundir.
LÍNURIT 4
Við sjáum að togþol efnisins lækkar umtalsvert eftir því sem neðar dregur. Togþolið
endar í u.þ.b. 69% af upphaflegu togþoli efnisins (127 MPa). Línurit 7 í viðauka B sýnir
togþolið miðað við hæð frá tvímálmstengi en þau gildi eru á sömu stöðum og
hitastigsmælingarnar. Tafla 3 í viðauka A sýnir mjög ýtarlega meðalhita mældan í
stömmum ásamt staðalfráviki og tilsvarandi togþoli.
ÚTREIKNINGAR
Það vægi sem þarf til þess að beygja stamma á varanlegan hátt má reikna á eftirfarandi
hátt:
Gert er ráð fyrir að flotmörk efnisins breytist jafnt á við togþol efnisins miðað við
hitastig.
Vægi = Flotmörk * Áslægt mótstöðuvægi
Í okkar tilfelli eru flotmörkin breytileg miðað við staðsetningu á stammanum. Þetta
þýðir að vægið sem þarf til að valda varanlegri formbreytingu minnkar eftir því sem
neðar dregur. Þ.e.a.s. vægið sem þarf til að beygja efnið neðst er minni en vægið sem þarf
til að beygja efnið efst. Áslæga mótstöðuvægið er fasti fyrir efnið.
Kraftur = Vægi / Lengd
85
90
95
100
105
110
115
56 56 53 57 73 86 111 138 157 186
Togþol (MPa)
Hitastig (°C)
Togþol m.v. meðalhita í stamma eftir 102 klst
17. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 17 af 32
Hér sjáum við að krafturinn sem þarf til að mynda ákveðna vægið minnkar línulega eftir
því sem armurinn lengist.
Greinilegt er að ekki er vægið bara mest neðst og að efnið nær flotmörkum þar fyrst
heldur eru flotmörkin minnst neðst sem stuðlar enn frekar að því að stamminn bognar
neðst. Eins og áður hefur komið fram þá geta þjónustukranarnir ekki beitt vægi á enda
stammans heldur beita eingöngu krafti sem undirstrikar ofangreindar fullyrðingar.
Mjög algengt er að sjá stamma bogna u.þ.b. 30cm út að ofan. Við getum reiknað hversu
ofarlega beygjan nær svona:
Greinilegt er að þrátt fyrir svo mikla niðurbeygju stammans þá nær beygjan ekki nema
frekar stutt áleiðis upp stammann eða um 8cm eins og sést á útreikningunum hér að
ofan. Þessir útreikningar miðast við að álið sé við stofuhita og flotmörk þess séu óáreitt
af langvarandi viðveru í hita kerjana.
Niðurbeygja í enda stamma.
Fjaðurstuðull álsins.
Tregðuvægi álsins.
Áslægt mótstöðuvægi álsins.
Lengd stamma frá tvímálmstengi að neðri brún
auga.
Flotmörk efnisins við stofuhita.
Sá kraftur sem þarf til að beygja enda stamma
út um 30cm.
Hveru ofarlega beygja nær. Þ.e.a.s. hversu
ofarlega á stammanum efnið fer upp í
flotmörk.
δa 0.3m=
E 44572MPa:=
IX1 4.219 10
5−
× m
4
=
WX1 5.625 10
4−
× m
3
=
L1 1.705m=
σy 50.3MPa=
Fa
δa 3⋅ E⋅ IX1⋅
L1
3
:= Fa 341.4kN=
La
σy WX1⋅
Fa
:= La 82.9mm=
18. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 18 af 32
SAMANTEKT
Hinar mestu bognanir sem höfundur hefur fundið án þess að sjá skemmdir á
tvímálmstengi voru u.þ.b. 30cm (efst á stamma). Úttreikningar sýndu að 30cm útbeygja
á stamma þegar um stofuhita er að ræða veldur beygju sem nær ekki nema 8cm upp
stammann.
Einnig hefur verið sýnt fram á að langvarandi viðvera efnisins í hita kerjanna hefur
talsverð áhrif á togþol og þar af leiðandi flotmörk efnisins sem enn frekar stuðlar að því
að stammi bogni frekar neðarlega.
Þrátt fyrir það þá er eitthvað af stömmum að bogna u.þ.b. 40 – 50cm frá tvímálstenginu.
Þessi tilfelli eiga rætur sínar líklegast að rekja til mikilla átaka þegar verið er að setja
skautið í kerið.
Flotmörk og togþol efnisins er ekki nægilega nálægt þeim uppgefnu tölum eða línuritum
fyrir 99,5% hreint ál sem höfundur komst yfir til að fullyrða að efnið sé í raun svo hreint.
Því er gert ráð fyrir að eiginleikar efnis stammana breytist í hlutfalli við breytingar
samkvæmt línuriti 3.
Erfitt er að segja að hér hafi verið sannað að bróðurpartur þeirra bognu stamma hafi
bognað þegar verið var að taka þá úr kerjunum eftir sína 29 daga. Togþol efnisins hefur
lækkað um ca. 31% frá upphaflegu gildi neðst, þar sem hitinn er mestur, því er óhætt að
fullyrða að stammarnir séu orðnir viðkvæmari fyrir áreyti þegar komið er að
skautskiptum. Sömuleiðis þegar fylgst er með skautskiptum þá er bersýnilega sett mikið
álag á stammana við þessa athöfn.
24. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 24 af 32
VIÐAUKI B – TOGÞOL STAMMA
Í línuriti 7 gefur að líta togþol m.v. hæð frá samsetningu en það er bersýnilega alveg eins
og línurit 3 þar sem hitastigsmælingarnar eru gerðar í sömu punktum og hæðin er gefin
upp í.
LÍNURIT 7
85
90
95
100
105
110
115
1780 1600 1400 1200 1000 800 600 400 200 0
Togþol (MPa)
Hæð frá samsetningu (mm)
Togþol eftir lengd stamma eftir 102 klst
25. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 25 af 32
Viðauki C ‐ Staðall DIN 50125 – Undirbúningur sýnis
26. Njáll Andersen Pétursson
VT‐7 Haustönn 2007
Síða 26 af 32
VIÐAUKI C – NIÐURSTÖÐUR TOGÞOLSPRÓFUNARINNAR