Recent content by MarkTheQuark
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What's Causing Phantom Scan Reconstruction Errors in NRecon?
So, my lab started doing some MicroCT scans, and they designed me to learn and try to solve some problems. The first issue that I noticed by doing some research both in some papers and in the manual from Bruker, it's that they tried to quantify the "BMD" without using the Phantom rods. So they...- MarkTheQuark
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- Replies: 1
- Forum: Biology and Medical
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Circuit equivalent for fitting my data
I did a few experiments recently of impedance spectroscopy, and I've gathered some data that i'm having some issues to find an equivalent circuit that can fit the data. The equivalent circuit that I've got, it's pretty similar with the data (graph and circuit below) But the problem is, at low...- MarkTheQuark
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- Circuit Data Equivalent Fitting
- Replies: 2
- Forum: Electrical Engineering
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Undergrad What are the biggest recent advances in physics?
My girlfriend is in her undergraduate biology course, and one of her professors said the following sentence: "Physicists are jealous of Biologists, as their field has been stagnant for years, with no new things to discover." I know this isn't true. I even got to argue with her about how this is...- MarkTheQuark
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- Physics
- Replies: 4
- Forum: Other Physics Topics
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Mathematica Plotting a parameter Plane of a spring pendulum in Mathematica
I'm reading an article about the order-chaos-order sequence of a spring pendulum [Ref 1], as I'm reading it I'm trying to reproduce the graphs and results through Mathematica. However, I am new to this software. I will list below some of the most important equations mentioned in the paper. "In...- MarkTheQuark
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- Mathematica Parameter Pendulum Plane Plotting Spring
- Replies: 1
- Forum: MATLAB, Maple, Mathematica, LaTeX
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Spring-mass system with a pendulum using Lagrangian dynamics
I'm stuck in a problem of a spring mass system with a pendulum attached to it as showed in the figure below: My goal is to find the movement equation for the mass, using Lagrangian dynamics. If the spring moves, the wire will move the same amount. Therefore, we can write the x and y position...- MarkTheQuark
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- Dynamics Lagrange equation Lagrangian Lagrangian dynamics Pendulum Potential energy Spring mass system System
- Replies: 15
- Forum: Advanced Physics Homework Help
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Undergrad Biological examples of a Biot-Savart law in magnetostatics?
Hello everyone, So, I was wondering, the Biot-savart show us a magnetic field created by a constant electric current. Initially I thought that an example would be biological systems with a nervous system that works on the basis of electrical discharges, but I don't think it's a valid example...- MarkTheQuark
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- Biological Biot-savart Biot-savart law Law Magnetostatics
- Replies: 5
- Forum: Electromagnetism
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Hello I'm a undergrad physics student from Brazil
Hello everyone, I'm a undergrad student at the State University of Maringa, from Brazil. In three semesters I'll graduate with a bachelor degree. And I want to do a master in biophysics, probably in another country and I think that's it.- MarkTheQuark
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- biophysics new member in this forum
- Replies: 1
- Forum: New Member Introductions