Search for tag: "signal"

36 Media

V00_03_Linearization of MOSFETs_Part2 duration 17 minutes 30 seconds V00_03_Linearization of MOSFETs_Part2 V00_03_Linearization of MOSFETs_Part2	V00_03_Linearization of MOSFETs_Part2 This video describes how to develop the equivalent circuit model for a MOSFET based on its linearized i-v characteristics. mosfets times vgs drain input source port terminal mosfet model circuit term current vds signal body gate voltage component currents linear From Chih-hung Chen 763 plays 0
Week1_Theoretical_Images duration 1 hour 3 minutes Week1_Theoretical_Images Week1_Theoretical_Images	Week1_Theoretical_Images This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester and it provides an introduction to imaging modalities and to the theory of signals and systems for modelling medical… medical physics medical imaging function delta signal imaging point image naught functions output systems signals sampling convolution input notation impulse ct linear shift infinity From Janos Juhasz 40 plays 0
Week2-Operations with functions 1 duration 1 hour 42 minutes Week2-Operations with functions 1 Week2-Operations with functions 1	Week2-Operations with functions 1 This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester and it provides an introduces the use of convolution and Fourier Transforms pertaining to 1-D and 2-D functions used in… medical physics medical imaging function fourier convolution minus transform functions frequency alpha signal domain times notation delta sine sort cosine image result multiplication naught From Janos Juhasz 41 plays 0
Week3_Digital_Images duration 50 minutes 48 seconds Week3_Digital_Images Week3_Digital_Images	Week3_Digital_Images This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester. In this lecture sampling theory is presented, including aliasing, Nyquist rate. Also, quantization of images are… image function sampling frequency fourier space images points delta rate bit times object nyquist bits islands transform frequencies signal quantisation From Janos Juhasz 26 plays 0
Week8_CT_Image_reconstrunction duration 1 hour 48 minutes Week8_CT_Image_reconstrunction Week8_CT_Image_reconstrunction	Week8_CT_Image_reconstrunction This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester. This lecture describes the technology of computed tomography (CT) and presents the mathematics behind image… medical physics medical imaging ct image ct reconstrunction projection image ray ct detector theta intensity photons fourier attenuation patient transform angle signal source projections filter energy scanner slice From Janos Juhasz 14 plays 0
Week9_Nuclear_Imaging_and_reconstruction duration 57 minutes 6 seconds Week9_Nuclear_Imaging_and_reconstruction Week9_Nuclear_Imaging_and_reconstruction	Week9_Nuclear_Imaging_and_reconstruction This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester. This lecture introduces the technology used in Nuclear Medicine Imaging and describes emission reconstruction in the… medical physics medical imaging nuclear medicine image reconstrunction image attenuation patient photons ct detector projection activity detectors energy reconstruction linear collimators spect fluence angle rays ray signal positron From Janos Juhasz 12 plays 0
Week11_MRI_Physics duration 1 hour 24 minutes Week11_MRI_Physics Week11_MRI_Physics	Week11_MRI_Physics This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester. The Physics of MRI and MRI design criteria is discussed. medical physics medical imaging mri physics field magnetization protons frequency signal coils rf naught angle magnet gradient vector times energy relaxation coil direction axis pause From Janos Juhasz 13 plays 0
Week12_Image_reconstrunction_MRI duration 1 hour 6 minutes Week12_Image_reconstrunction_MRI Week12_Image_reconstrunction_MRI	Week12_Image_reconstrunction_MRI This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester. It introduces the mathematics of image reconstruction in Magnetic Resonance Imaging. medical physics medical imaging mri gradient direction frequency field signal slice image phase protons space magnetization pulse echo delta frequencies degree vector sequence strength From Janos Juhasz 15 plays 0
Fluoroscopy - Part 2 duration 16 minutes 27 seconds Fluoroscopy - Part 2 Fluoroscopy - Part 2	Fluoroscopy - Part 2 image ray resolution photons fluoroscopy quality contrast intensifier detectors panel charge efficiency signal object ratio instance bit radiation millimeter screen From Troy Farncombe 46 plays 0
MRI Artifacts duration 1 hour 34 minutes MRI Artifacts MRI Artifacts	MRI Artifacts space image artifact artifacts frequency echo field phase direction images things gradient motion sequence kind signal sequences pulse mri imaging From Troy Farncombe 44 plays 0
MRI Physics - Part 1 duration 2 hours 55 minutes MRI Physics - Part 1 MRI Physics - Part 1	MRI Physics - Part 1 An introduction to the physics of magnetic resonance imaging. mri magnetic resonance imaging medical imaging signal pulse frequency gradient field rf phase direction energy space echo spin guys coil image bit hydrogen spins atoms magnetization From Aravinthan Jegatheesan 105 plays 0
Deconvolution Module duration 23 minutes 12 seconds Deconvolution Module Deconvolution Module	Deconvolution Module Image deconvolution and Z-stacks on a widefield fluorescence microscope. Nikon NIS Elements, January 2021. image convolution signal sample plane focus stack channels button point space scale auto movie layer fact channel deconvolution lot deconvolve From Ray Truant 90 plays 0
WidefieldIntro21 duration 46 minutes 5 seconds WidefieldIntro21 WidefieldIntro21	WidefieldIntro21 Intro to widefield imaging on a Nikon Fluorescence device and NIS Elements software. January 2021. image light imaging sample camera pixels button focus channels scope stage objective filter exposure fluorescence emission microscope side signal channel From Ray Truant 29 plays 0
C2 Confocal basic imaging v2 duration 44 minutes 40 seconds C2 Confocal basic imaging v2 C2 Confocal basic imaging v2	C2 Confocal basic imaging v2 Basic confocal plus deconvolution imaging. laser image sample power pixels quality imaging lasers scan capture scanning light pinhole channels fan resolution size pixel gain signal From Ray Truant 22 plays 0
L11_How Differential Pair Amplifiers Work duration 11 minutes 24 seconds L11_How Differential Pair Amplifiers Work L11_How Differential Pair Amplifiers Work	L11_How Differential Pair Amplifiers Work This video presents how a differential pair amplifier with a current sink removes the common-mode noise to its single-ended output. differential amplifier output voltage drain input signal source amplifier waveform phase q2 terminal side gate stage problem interference terminals shift differences differential From Chih-hung Chen 113 plays 0
MUCEC 2021 - Milana Pikula duration 16 minutes 28 seconds MUCEC 2021 - Milana Pikula MUCEC 2021 - Milana Pikula	MUCEC 2021 - Milana Pikula Presenter: Milana Pikula Supervisor(s): Dr. Carlos Filipe and Dr. Todd Hoare Project Description: A simple approach to fabricating hydrogel-based DNA microarrays is reported by physically entrapping… signal dna array ratio targets molecules joe oligonucleotides hybrid acid hybridization gel microarrays size rca fold jill conditions platform sensitivity From Kushal Panchal 50 plays 0
V00_02_Linearization of MOSFETs_Part1 duration 18 minutes 29 seconds V00_02_Linearization of MOSFETs_Part1 V00_02_Linearization of MOSFETs_Part1	V00_02_Linearization of MOSFETs_Part1 This video reviews how to linearize a MOSFET to become a linear element. Note: In the video, there is a typo in gm at 16:43. The correct gm = kn'(W/L)Vov, instead of (kn'/2)(W/L)Vov. mosfets vgs equation times region term voltage channel device vds drain mosfet effect length modulation function saturation minus terminal circuit signal From Chih-hung Chen 1,093 plays 1
14_BLDC Control 1_Part1 duration 7 minutes 39 seconds 14_BLDC Control 1_Part1 14_BLDC Control 1_Part1	14_BLDC Control 1_Part1 sensor effect hall phase output emf outputs model voltage motor face waveforms position simulink interval signal waveform sensors voltages induce From BERKER BILGIN 62 plays 0
14_BLDC Control 1_Part2 duration 10 minutes 19 seconds 14_BLDC Control 1_Part2 14_BLDC Control 1_Part2	14_BLDC Control 1_Part2 emf point mfa phase hci polarities hb equals voltage a. phases table hcahps aha hp crossing output signal size effect From BERKER BILGIN 49 plays 0
Lecture 4 - Imaging Concepts duration 48 minutes 3 seconds Lecture 4 - Imaging Concepts Lecture 4 - Imaging Concepts	Lecture 4 - Imaging Concepts image imaging contrast object resolution answer quality function width deviation signal error frequency photons curve ray point ratio window level From Troy Farncombe 18 plays 0
07_Overview of Power Converters_Part3 duration 4 minutes 4 seconds 07_Overview of Power Converters_Part3 07_Overview of Power Converters_Part3	07_Overview of Power Converters_Part3 voltage cycle half magnitude load degrees t1 input angle firing signal minus output thyristor thioesters phase conduct a. d1 diode From BERKER BILGIN 71 plays 0
Week6_ImageCompression_Noise_Filtering duration 54 minutes 42 seconds Week6_ImageCompression_Noise_Filtering Week6_ImageCompression_Noise_Filtering	Week6_ImageCompression_Noise_Filtering This lecture is part of MedPhys 4D03 lecture series for the Fall 2020 semester. In this lecture the most widely used image compression, JPEG is presented and a description of the noise in digital… medical physics medical imaging image frequency compression frequencies filter signal values dct bit images intensity matrix fourier filtering space function domain pixel deviation ratio From Janos Juhasz 17 plays 0
27_Inverter Controlled Induction Motor… duration 10 minutes 31 seconds 27_Inverter Controlled Induction Motor… 27_Inverter Controlled Induction Motor Drives2_Part3	27_Inverter Controlled Induction Motor Drives2_Part3 voltage motor phase induction reference frequency vdc waveform wave switching modulation sinusoidal harmonics speed sine carrier pwm pulse cycle signal From BERKER BILGIN 59 plays 0
08-Sound-Recording duration 32 minutes 16 seconds 08-Sound-Recording 08-Sound-Recording	08-Sound-Recording microphone sound rate thing recording sampling stuff recordings things amplitude computer frequency sounds signal bit waves power voice lot camera From David Feinberg 11 plays 0