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Scherk's surface is defined by exp(z)cos(x)-cos(y)=0. If z is treated as a complex number rather than a real and multiplied by exp(it) the solution to Re(exp(z)cos(x)-cos(y))=0 performs this curious dance act. The color denotes the imaginary part.
This set works nicely as a slideshow.
Rendered in Matlab using isosurfaces.
Swedish Ambassador to Bangladesh H E Charlotta Schlyter, Ms Carin Zetterlund, First Secretary/Deputy Head of Development Section and Ms Lena Nordström, Head of Staff MoFA visited icddr,b’s Matlab field site - one of the developing world’s richest, most comprehensive and longest-running data resources.
The guests visited icddr,b health and demographic data collection facilities, ongoing studies in the villages, the Matlab hospital, especially providing services for women and children and a mother care unit.
The guests also took a boat ride to Matlab, using the same route once taken by hundreds of thousands of cholera patients from remote areas to reach icddr,b’s floating hospital on a barge, which now remains parked at Matlab, bearing witness to the history of humanitarian efforts. Photos: Rabiul Hasan / icddr,b
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"University of Texas at Austin"
"University of Texas School of Architecture"
"UT Austin"
"UTSOA"
"Additive Manufacturing"
"Matlab"
"Materials Lab"
"Student works"
"Spring 2014"
VENDRAMETTO JUNIOR, Carlos Eugenio; ARENALES, Selma Helena de Vasconcelos. Matlab: fundamentos e programação. São Carlos: EdUFSCAR, 2011. 89 p. (Série Apontamentos [Edfscar]). ISBN 9788576000280. Inclui bibliografia; il. tab. quad.; 28x21cm.
Palavras-chave: MATLAB/Programa de computador; PROGRAMACAO EM MATLAB.
CDU 519.6 / V453m / 2011
El jueves 17 de octubre, de 10 a 13.30 horas, en la Escuela de Ingeniería de Telecomunicación y Electrónica de la ULPGC, se va a celebrar un Seminario de Matlab, a cargo de Loren Shure, coautora de varios productos de MathWorks donde ha trabajado en los últimos 30 años.
Más información: www.ulpgc.es/noticia/seminario-matlab-cargo-loren-shure-c...
Swedish Ambassador to Bangladesh H E Charlotta Schlyter, Ms Carin Zetterlund, First Secretary/Deputy Head of Development Section and Ms Lena Nordström, Head of Staff MoFA visited icddr,b’s Matlab field site - one of the developing world’s richest, most comprehensive and longest-running data resources.
The guests visited icddr,b health and demographic data collection facilities, ongoing studies in the villages, the Matlab hospital, especially providing services for women and children and a mother care unit.
The guests also took a boat ride to Matlab, using the same route once taken by hundreds of thousands of cholera patients from remote areas to reach icddr,b’s floating hospital on a barge, which now remains parked at Matlab, bearing witness to the history of humanitarian efforts. Photos: Rabiul Hasan / icddr,b
Same as last post www.flickr.com/photos/kylemcdonald/4309938058 but using an alternative method for FFT frequency estimation, described here www.dspguru.com/dsp/howtos/how-to-interpolate-fft-peak
Unfortunately it's still really wavy (see bottom right). I didn't expect that recovering a single frequency would be so difficult. Maybe another technique, like autocorrelation, should be used instead in cases where non-transparent materials are being scanned?
paddedAmplitude = [zeros(1, w); amplitude; zeros(1, w)];
[maxVal, maxInd] = max(paddedAmplitude);
ph = size(paddedAmplitude, 1);
pw = size(paddedAmplitude, 2);
y1 = paddedAmplitude(maxInd - 1 + ph * ((1:pw) - 1));
y2 = maxVal;
y3 = paddedAmplitude(maxInd + 1 + ph * ((1:pw) - 1));
binOffset = (y3 - y1) ./ (2 * (2 * y2 - y1 - y3));
subplot(2, 2, 4);
plot(maxInd + binOffset - 1);
axis square;
axis tight;
xlabel('Position');
ylabel('Quadratic Method Center');
"University of Texas at Austin"
"University of Texas School of Architecture"
"UT Austin"
"UTSOA"
"Additive Manufacturing"
"Matlab"
"Materials Lab"
"Student works"
"Spring 2014"
Swedish Ambassador to Bangladesh H E Charlotta Schlyter, Ms Carin Zetterlund, First Secretary/Deputy Head of Development Section and Ms Lena Nordström, Head of Staff MoFA visited icddr,b’s Matlab field site - one of the developing world’s richest, most comprehensive and longest-running data resources.
The guests visited icddr,b health and demographic data collection facilities, ongoing studies in the villages, the Matlab hospital, especially providing services for women and children and a mother care unit.
The guests also took a boat ride to Matlab, using the same route once taken by hundreds of thousands of cholera patients from remote areas to reach icddr,b’s floating hospital on a barge, which now remains parked at Matlab, bearing witness to the history of humanitarian efforts. Photos: Rabiul Hasan / icddr,b
HIGS is the best MATLAB Project Center in Chennai, Bangalore, Coimbatore. Our PhD MATLAB team Guide you to complete your research MATLAB implementation on time
Curated by Kuth/Ranieri (Byron Kuth, Elizabeth Ranieri, Juta Cinco, Eliza Koshland) and UTSOA (Sydney Mainster, Charlton Lewis, Travis Cook, Jen Wong, Rachel Bullock, Dan Zou, Lana Denkeler, Mehreen Charania, Eric Lam, James Spence).
Photographed by Selina Ortiz, School of Architecture Visual Resources Collection Photography TA
Working towards arbitrarily high precision structured light scanning. Plots are with 4, 8, 16, and 32 bins.
Why does the spectral center (weighted average bin) "hum" as you do a frequency sweep?
Update: it "hums" because the spectral center is one of the worst ways to do frequency estimation! web.archive.org/web/20071011064215/http://home.comcast.ne...
w = 512;
timeSteps = 64;
img = repmat(1:w, timeSteps, 1) / w;
img = img .* repmat((1:timeSteps)', 1, w);
img = cos(img * pi);
subplot(1, 3, 1);
image(img * 256);
xlabel('Position');
ylabel('Time');
colormap(gray(256));
axis square;
fftOut = fft(img);
goodBins = (timeSteps / 2) + 1;
amplitude = abs(fftOut((1:goodBins), :)) / timeSteps;
subplot(1, 3, 2);
image(amplitude * 256);
axis square;
xlabel('Position');
ylabel('FFT bin amplitude');
weightedSum = sum(repmat((1:goodBins)', 1, w) .* amplitude);
weightedAverage = weightedSum ./ (sum(amplitude) * timeSteps / 2);
subplot(1, 3, 3);
plot(weightedAverage);
axis square;
axis tight;
xlabel('Position');
ylabel('Spectral Center');
The ambassador visited the hospital located inside the Matlab Health Research Centre where he spent some time touring the diarrhoea, and maternal and child health wards.
Norwegian Ambassador HE Ms Sidsel Bleken and Norwegian Institute of Public Health officials visited Matlab Health Research Centre to learn more about Hepatitis E Vaccine HEV study led by icddr,b senior scientist Dr K Zaman, and different maternal and child health services and Matlab hospital. The visitors also went to the field to see how community health research workers are engaged in routine HDSS data collection in the villages. Photos: Rabiul Hasan
Scherk's surface is defined by exp(z)cos(x)-cos(y)=0. If z is treated as a complex number rather than a real and multiplied by exp(it) the solution to Re(exp(z)cos(x)-cos(y))=0 performs this curious dance act. The color denotes the imaginary part.
This set works nicely as a slideshow.
Rendered in Matlab using isosurfaces.
Black bars drawn recursively on a grid.
Although I often create images like this in Processing, I made this one in Matlab.
9. September 2017: Damit die Software Matlab die Messdaten dem jeweiligen Rad zuordnen kann, wird der Messbox die Radnummer zugeordnet.
Zum Artikel: extraenergy.org/main.php?language=de&category=product...
Foto: Angela Budde, www.ExtraEnergy.org
summer training institute for engineering students in Lucknow on JAVA, Embedded System, .NET, MATLAB. PLC SCADA, Industrial Automation, VLSI Design, CATIA, ANSYS, AutoCAD, Solidworks, Staad Pro at iNext Technology
SONY A580 broadband
DT 3.5-5.6/18-55 SAM II; 18mm @ f/11
Tiffen Yellow 15 filter
Single image IRG composition with Matlab
Matlab Upazila, Chandpur District, Bangladesh.
Photo credit: Rob Hope/REACH
If you use one of our photos, please credit it accordingly and let us know. You can reach us via Flickr or at reach@water.ox.ac.uk
Scherk's surface is defined by exp(z)cos(x)-cos(y)=0. If z is treated as a complex number rather than a real and multiplied by exp(it) the solution to Re(exp(z)cos(x)-cos(y))=0 performs this curious dance act. The color denotes the imaginary part.
This set works nicely as a slideshow.
Rendered in Matlab using isosurfaces.