Recent content by dislect

Hello, I would like to ask if its possible to apply pressure through fluid on a curved soft tissue such as silicon to measure the strain by using sensors (and what kind) such as shows in the attached image? If those were pressure sensors would they all show the same pressure or would the change...

Hi, thanks. Yes I recon it depends on things like the length of the suture, its width, angles and so on. But assuming both are identical for the two cases, the tension of the suture would still be 500/6 even if we apply it in at the direction of the screen instead of "pulling it" like in pic 1 (?)

Hello guys, I've had the following discussion at work: We are currently using a suture with a nylon thread on a tissue, when the thread of the suture is tightened in a force equal to if we've put a 500 gram weight on both ends of the suture line (meaning both end are tied together to the...

See, I don't get the nut part being constrained to the shaft to prevent rotation of this it move linearly WITH the shaft ? Is a bearing being used? I'm talking about exclusively changing the 1.8 step as a resolution of 1.4 is needed.

Hi guys, 1. In this video: Could someone explain me how the linear stepper motor responsible for drawing/injecting the syringe works? I mean, the threaded rod going through the motor is suppose to turn around its axis in order to advance linearly and in this mechanism there's a rail to the...

Hi, if you take a look at the page the motor has a threaded rod going through it so its already a linear motion.

Hi guys, I want a linear stepping motor to be able to apply an equivalent force 10 Newton to push a syringe. How do I read the data sheet here : http://www.haydonkerk.com/LinearActuatorProducts/StepperMotorLinearActuators/LinearActuatorsHybrid/Size11LinearActuator/tabid/75/Default.aspx To...

Thank you all :)

Hi economicsnerd, Couldn't follow "put in any integer k>s. Then there is a unique integer solution, which is especially easy to read off if you express the output in base-k." Could you give me an example? let's say f(x)=5+2x+4x^2 is in the 'black box'. i put in x=1 and receive...

Hi guys, My boss gave me a riddle. He says that you have a "black box" with a polynomial inside it like f(x)=a0+a1x+a2x^2+a3x^3 ... you don't know the rank of it or the coefficients a0, a1, a2 ... You do know: all of the coefficients are positive you get to input two x numbers and...

I've read through their website and its still not clear for me how they track the tumors? It sounds like the perfect solution other than the fact that you have to buy the all kit instead of an "add-on" to existing xray radiation devices used in hospitals.

"'why not go for something that can be observed directly with a penetrating radiation with a short wavelength?" You mean besides radiating the Xray to treat the cancerous cells, also radiate short wavelength signals to the implant? I was thinking it would be easier if there was a material that...

Hi Sophie, We ARE using xray on cancer patients to kill cancerous cells. I suggest implanting a device that absorbs xray and emits some wavelength that we can track from outside that body so we know if the patient moved. That way we radiate only the tumor and not the healthy cells.

Thank you Dave. So going back to the question, what material can be used to take xray/gamma ray and emit IR/UV and how can it be tracked from outside of the human body? IR can be seen using an IR cam, but if the transmitter is very small and deep inside the body it won't be seen too well.

Hi, thank you for the comments! I do not know if there are crystals who do that, but I read some explanations on how xray removes an electron from lower shell energy while another takes its place and as a result the atom emits RF energy. litup I'm talking about cancer radiation for example...