I am Molly Metcalfe. Currently associated with matlabassignmentexperts.com as a matlab assignment helper. After completing my Ph.D. in Engineering, at
New York University, I was in search of an opportunity that would expand my area of knowledge hence I decided to help students with their assignments. I have written several Signal Processing Assignments to help students overcome numerous difficulties.
Describes Signal Processing in Radar Systems,
For comments please contact me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://solohermelin.com.
I recommend to see the presentation on my website under RADAR Folder, Signal Processing Subfolder.
Describes Signal Processing in Radar Systems,
For comments please contact me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://solohermelin.com.
I recommend to see the presentation on my website under RADAR Folder, Signal Processing Subfolder.
WEBINAR ON FUNDAMENTALS OF DIGITAL IMAGE PROCESSING DURING COVID LOCK DOWN by by K.Vijay Anand , Associate Professor, Department of Electronics and Instrumentation Engineering , R.M.K Engineering College, Tamil Nadu , India
In this presentation we discuss about a particular type of analog communication waves that is wideband frequency modulation. In this slide, its expression is discussed along with graphical visuals. Not forgetting its power and bandwidth as well. We also see the use of bessel function and the block diagrams that help to form this type of waves.
This presentation describes the Fourier Transform used in different mathematical and physical applications.
The presentation is at an Undergraduate in Science (math, physics, engineering) level.
Please send comments and suggestions to improvements to solo.hermelin@gmail.com.
More presentations can be found at my website http://www.solohermelin.com.
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WEBINAR ON FUNDAMENTALS OF DIGITAL IMAGE PROCESSING DURING COVID LOCK DOWN by by K.Vijay Anand , Associate Professor, Department of Electronics and Instrumentation Engineering , R.M.K Engineering College, Tamil Nadu , India
In this presentation we discuss about a particular type of analog communication waves that is wideband frequency modulation. In this slide, its expression is discussed along with graphical visuals. Not forgetting its power and bandwidth as well. We also see the use of bessel function and the block diagrams that help to form this type of waves.
This presentation describes the Fourier Transform used in different mathematical and physical applications.
The presentation is at an Undergraduate in Science (math, physics, engineering) level.
Please send comments and suggestions to improvements to solo.hermelin@gmail.com.
More presentations can be found at my website http://www.solohermelin.com.
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A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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.
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
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.
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
2. Problem 1: An AM (amplitude-modulated) radio signal fAM(t) is described by
where faudio(t) is the audio signal, sin (Ωct) is known as radio-frequency carrier signal (fc
= 500 – 1600 kHz - the AM band), and a is a positive constant that determines the
modulation depth. (Note that we require |afaudio (t)| < 1 otherwise we have over-
modulation.) the following figure shows an AM signal with an “audio” waveform that is a
simple low frequency sinusoid. You can see how the audio signal “modulates” the
amplitude of the rf signal.
(a) Sketch the magnitude of the Fourier transform of fAM(t) when faudio(t) = 0.
fAM(t) = (1 + afaudio (t))sin (Ωct)
3. Answer:
We have shown in class (see the Fourier handout):
F {sin(ωct)} = −jπ (δ(ω − ωc) − δ(ω + ωc))
F {cos(ωct)} = π (δ(ω − ωc) + δ(ω + ωc))
(a) When faudio ≡ 0, fAM(t) = sin(ωct), and from above
(b) Let a = 0.5, and sketch the magnitude of the Fourier transform of fAM(t) when
faudio(t) = 0.5 cos(2π · 1000t) + 0.25 cos(2π · 2000t)
(Hint: There is no need to actually compute the FT. Consider expanding fAM(t), or
simply use properties of the FT.)
Answer: There are several ways of doing this. For example
4. (i) Expand fAM(t) into sinusoidal components using this trigonometric relationship:
fAM(t) = (1 + afaudio (t))sin (ωct)
= (1 + 0.5 (0.5 cos(2π · 1000t) + 0.25 cos(2π · 2000t))sin(ωci)
= sin(ωct)
+0.25 cos(2π1000t) · sin(ωct)
+0.125 cos(2π2000t) · sin(ωct)
= sin(ωct)
+0.125 (sin((ωc + 2000π)t) + sin((ωc − 2000π)t))
+0.0625 (sin((ωc + 4000π)t) + sin((ωc − 4000π)t))
and take the Fourier transform of each of the five components:
FAM(jω) = −jπ{(δ(ω − ωc) − δ(ω + ωc))
+ 0.125 (δ(ω − (ωc − 2000π)) − δ(ω + (ωc − 2000π)))
+ 0.125 (δ(ω − (ωc + 2000π)) − δ(ω + (ωc + 2000π)))
+ 0.0625 (δ(ω − (ωc − 4000π)) − δ(ω + (ωc − 4000π)))
+ 0.0625 (δ(ω − (ωc + 4000π)) − δ(ω + (ωc + 4000π))) }
giving a total of 10 impulse components in the spectrum.
5. (ii) Alternatively you can recognize that the expansion to
involves time-domain products and these will result in frequency-domain convolutions, so
that
where Fc(jω) = F {sin(ωct)}, F1000(jω) = F {0.25 cos(2000πt)}, and F2000(jω) = F
{0.125 cos(4000πt)}. The same result as in (i) will follow.
fAM(t) = sin(ωct) + 0.25 cos(2π1000t) · sin(ωct) + 0.125 cos(2π2000t) · sin(ωct)
6. (c) Use your result from (b) to generalize, and sketch the magnitude spectrum of fAM(t)
when faudio(t) has a spectrum (again let a = 0.5):
Answer: The following generalizes the results of part (b)
Answer: From the above figure it can be seen that the required bandwidth is 2ωu rad/s.
(d) If faudio has a bandwidth B = Ωu − Ωl, what is the bandwidth of a band-pass filter that
would be necessary to select the signal fAM(t) out of all the other AM radio stations?
7. Problem 2: We generally ignore in the phase response in filter design. Although you might
wish for a “zero-phase” filter, you can see from the class handout on causality that a filter
with a purely real frequency response is acausal, and as such cannot be implemented in a
physical system. The following are a pair of tricks that may be used to do “off-line” zero-
phase filtering of recorded data. (Note: these methods are used frequently in digital signal
processing - it is difficult to do this in continuous time.) Assume that you have a filter H(jΩ)
with arbitrary phase response H(jΩ), and that your input signal is f(t) is recorded on a tape-
recorder that can be played forwards or backwards.
Method (1) 1. Pass f(t) through the filter and record the output g(t) on another tape recorder.
2. Play g(t) backwards through the filter (that is the filter input is g(−t)) and record the output
x(t).
3. The filtered output is found by playing the x(t) backwards, that is y(t) = x(−t).
Answer: This problem uses the time-reversal property of the Fourier transform, if
F {f(t)} = F(jω) then F {f(−t)} = F(−jω), and if f(t) is real then F(−jω) = F(jω), so that F
{f(−t)} = F(jω).
Method(1) 1. G(jω) = F(jω)H(jω).
2. X(jω) = G(jω)H(jω).
3. Y (jω) = X(jω) = F(jω)H(jω)H(jω) = F(jω)H(jω)H(jω) = F(jω)|H(jω)| 2 .
The equivalent transfer function is
8. Heq = |H(jω)| 2
which is real, that is with zero phase shift.
Method(2) 1. G(jω) = F(jω)H(jω).
2. X(jω) = F(jω)H(jω).
3. Y (jω) = G(jω) + X(jω) = F(jω)H(jω) + F(jω)H(jω) = 2F(jω)ℜ {H(jω)}.
The equivalent transfer function is
Heq = 2ℜ {H(jω)}
which is real, that is with zero phase shift. Note that because it squares the frequency
response magnitude, method (1) will have a sharper cut-off characteristic than method (2).