Dushyant Kumar

10 Questions 6 Answers 0 Followers

Questions related from Dushyant Kumar

Infusion experiment using CT iodinated contrast agent: how to manipulate infusion curve?

Hi, I am planning to carry out infusion experiments in mice involving iodinated CT contrast agent. This application is for MRI. Aforementioned animal experiment would require me to control and...

06 June 2018 5,140 4 View

Cortical impact injury in mice: how much expertise is needed?

Hi, I am planning to start an animal experiment investigating time course of neurometabolic cascade post mild TBI (traumatic brain injury). The problematic part is the animal model. Unfortunately,...

05 May 2017 8,948 1 View

How to Implement genetic algorithm to mixed integer programming in Matlab?

I am trying to minimize a nonlinear objective: ||y- f(x_bar)||^2 + mu_s ||D_s x_bar||^2 Obviously, first term is data fitting term and second is regularization term involving spatial...

02 February 2016 1,832 3 View

How do I restrict the search space to “limited” preselected range?

My function is nonlinear with respect to a scalar \alpha . However, the calculation of objective function is very time consuming, making optimization also very time consuming. Also, I have to do...

01 January 2016 10,057 3 View

Looking for Collaborative Relation with Researchers Interested in White Matter Disorders(from India & Belgium, Estonia, Portugal, France and Norway)?

Let me first apologize for putting this collaboration request in question-answer section. However, I could think of any other way to reach to relevant researchers faster. I am an MRI scientist...

05 May 2015 6,941 2 View

Matlab coder: Can someone with Matlab coder package help me translate a couple of small codes (~100 lines)?

Hi, I am generalizing a function that I wrote it Matlab. I tried to translate it to C++ myself. But, I am concerned that I may be doing wrong at couple of places. So, I thought that it would be a...

02 February 2015 1,947 2 View

Can I use an inverse distance filter for cleaning up this map?

Hi,Can someone help me out with inverse distance filter?I intend to clean up a map (called B1-map) which is supposed to be smoothly varying. Please see the attached figure.The left most figure is...

10 October 2014 5,260 2 View

Can anyone help with numerical evaluation of integral involving matrices?

I have come across an integral involving matrices while trying to develop a closed form solution for the problem I have been working on. I am quite confident about my closed form expression....

03 March 2014 5,804 4 View

What is a faster way to calculate exponential and inverse for series of slightly different matrices?

I have a matrix which is 6x6 and a vector 6x1. I calculate C1 = expm(Aoff*Tau); and C2 = -pinv(Aoff)*B; Please have a look at the structure of my matrix and vector: Aoff = [[-r_2s...

10 October 2013 5,661 0 View

Diffusion tensor template for brain

Hi, I am looking for the diffusion tensor template (MRI) of a single slice or 3D brain. I would prefer if it would be from ischemic stroke. I plan to use it for a simulation to see if a novel...

01 January 1970 9,336 1 View