In this topic you will see:
Radio Wave System
History
Characteristics
Specifications
Advantages and Disadvantages
Three Devices (Mobile Device, Wi-Fi Device, GPS Device etc.)
definition, speed, production, properties of electromagnetic waves and electromagnetic spectrum. waves in EM spectrum and their application in daily life.
In this topic you will see:
Radio Wave System
History
Characteristics
Specifications
Advantages and Disadvantages
Three Devices (Mobile Device, Wi-Fi Device, GPS Device etc.)
definition, speed, production, properties of electromagnetic waves and electromagnetic spectrum. waves in EM spectrum and their application in daily life.
The Beginner’s Guide to How an Antenna Works.pdfGurleen Nayar
The antenna is one of the most important tools that simplify communication in our daily life. We can send and receive messages by using a powerful antenna. It is also used in TV broadcasting and radio stations. Apart from that, the antenna also helps us to talk on telephones and mobile phones.
Quick Way to Know about Antenna and Its TypeGurleen Nayar
An antenna plays a significant role in the realm of wireless communication. It is a metallic structure designed for receiving and transmitting a wide range of radiofrequency waves wirelessly.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
Azure Interview Questions and Answers PDF By ScholarHat
Radio waves presentation
1. Radio Waves in Media Technology
other than radio broadcasting
Elsbeth Guthrie P1125496X
Studies in Media Technology
2. What are Radio Waves?
Radio Waves are longest wavelengths in the electromagnetic spectrum.
Radio waves range in length from very small (A millimeter) to very big
(100,000 km) this makes it one of the biggest ranges of waves on the
electromagnetic spectrum.
However they bring a lot more than just your music to your radio they can
also be used for mobile phone and TV’s and all forms of electromagnetic
radiation as long as the frequency is above 300 GHz and the wave is bigger
than a millimeter.
3. How do they work?
• Radio waves work by transmitting the signal to you radio, TV
or phone. The antenna of the radio is an important part for
this process to work. The antenna picks up the signal or
wave being transmitted to the radio. This is a small thin
piece of wire that the transmitted wave interact with.
• However the tuner is another important part for the
radio waves to actually work and you get some
entertainment from it. The tuner separates the sine
waves from all the thousands of other waves that
the antenna picks up. It then amplifies the
frequency ignoring all the other frequencies so you
can get what you want from your radio, TV or
phone.
4. Radio Waves in Mobile Phones
• Old phones used to have antenna’s on the top of them so they
could be used and call people around the world from the
signal being picked up through the antenna.
• However, nowadays mobile phones use a cellular system
instead which means it uses frequencies this is the same
method as a radio transmitting sounds to an audience. Both
of which use radio waves to do what they need to.
• I.E. For radio it’s transmitting music to a listening audience.
For mobile phone’s it could be sending an email, text or using
internet.
5. Radio Waves in Mobile Phones
• Mobile phones also emit a small amount of electromagnetic
radiation. Mobile phone emit signals through radio
waves, which are made up of RF or a radio frequency energy
which is a type of electromagnetic radiation.
• Because of this there is an issue about whether the
radiation emitted is causing health problems or not.
• People on their phones a lot and keeping it up to their
ear would have the radiation near their head a lot of
the time which could cause health problems. There
are small short term solutions to this though; hands
free, mobile phone ear pieces and ear phones and
putting it too speaker.
6. Radio Waves In TV
• Radio waves used to be used in TV when TV’s had antenna’s on
the top of them or satellite dishes on the top of the house. The
process for this is the same as for the radio and the mobile
phones when they had antenna’s on them.
• After technology progressed and
antenna’s were taken off the television’s
it became analogue TV. This broadcasts
an encoded analogue audio and
analogue video signal. This shows the
broadcast signal on the TV which is a
function of amplitude or frequency. Both
of which use radio waves.
7. Radio Waves In TV
• After the digital switchover, between years 2008 and
2012, gets rid of analogue TV and all TV’s became digital using
free view without a satellite dish but using an aerial instead.
This still uses electromagnetic spectrum.
• However for Sky TV they still use a
satellite this is because there are
different frequencies for this type
of TV. This is because they are
encrypted so you need to pay a
fee to watch the channels.
Mobile phones also emit a small amount of electromagnetic radiation. Mobile phone emit signals through radio waves, which are made up of RF or a radio frequency energy which is a type of electromagnetic radiation.
However for Sky TV they still use a satellite this is because there are different frequencies for this type of TV. This is because they are encrypted so you need to pay a fee to watch the channels.