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Hello! My name is Ivan Nikiforov. I am an engineer in automated control systems. I have a development in the field of electrical engineering. I would like to talk about her on the forum.
Hello everyone! I'm a mum and for a while now my child who is getting older has this habit of using me as a rocker (she sleeps on the pillow while I rock her on my legs) . I used to have the exact same habit so I kind of get her 😃 My question is : can I swap these tired legs of mine for an...
I just finished watching a fine debate.
It included Law Professors Eugene Volokh, Lawrence Tribe, plus Katie Fallow, Gautam Hans, and Colin Stretch. All of them learned, articulate, informed, and tempered. But their discussion was marred by an excessive number of ahs, ums, you-knows, and...
It will be 2 rubiks cubes stacked, with the top cube standing on an axis. I am looking to make the cube rotate on axis. I have a lazy susan that the platform, picture of smaller concept of platform included, will rest on. This should help minimize friction. Total weight of top cube and stand...
Preface: I've done some reading and have minimal experience with micro controllers and circuit boards. Though it is a simple question, the internet has puzzled me, likely with the jargon I don't fully understand!
You can have an Arduino board or Raspberry PI and send it a program to perform...
I have a transformer chamber with 2 doors.
What I have to do-
If any of the door is opened, this should happen-
1. 2 CFL inside transformer chamber should start
2. Simultaneously, a buzzer/hooter should be ON.
3. After opening the door, I should have option to reset the hooter.
how do I do it?
Hi all,
I thought I would post my thoughts/progress on designing and building an automatic tennis ball launcher for my dog. The little fella gets a bit bored during the day when we are at work, so I want to build him this so he has something to do other than push a basketball around the...
Hi PF!
I have a series of photographs taken of water being drained from a cup. I would like to automatically track the meniscus profile (not a particle) as it changes from photograph to photograph in ImageJ. Does anyone have a recommendation of where to start reading, or any plugins to use, so...
Air Force Lug Analysis (section 9 here and summarized here) seems to be the best generalized method for comprehensive lug analysis. However, it relies on charts developed by the USAF in the late sixties. Every source I've found on the method uses those same images.
I'm trying to make an...
Where can I find one of these? That is, are there linear actuators where I can specify the force it should apply and it gives me back exactly how much force was applied? Are there any linear actuators that can do this and also give me position feedback, i.e., where my object is after it has been...
Hi All,
I'm working on an automated chiller control system for final year project. It is a logic control that automatically set the chill water supply temperature based on current demand load and the chillers performance curve to achieve the best efficiency COP for the system. For a variable...
I am looking for some device that can emulate someone tapping with a wrench every 20 minutes.
More specifically, I have noticed that in my application, my flowmeters (rotameters) are dropping over time. As a workaround I have been able to tap them with a wrench every 20 to 30 minutes, this...
Hi, I’m new here and come to ask you for some help.
I would like to ask you to give me a few examples of automated sample extraction from laboratory oven for mechanical properties testing. It could be in form of scientific articles, videos or anything else, where something like that might be...
The list is up on the BBC here: http://www.bbc.co.uk/news/technology-34066941 Input your job (or just browse the others) to find out the automation risk according to the study.
It might not be gospel but I find modern automation very interesting, it's remarkable how many jobs can be displaced...
I'm watching The Twilight Zone episode The Brain Center at Whipple's on Me-TV. It was originally shown in 1967 but is still relevant 47 years later. Comments?
https://www.youtube.com/watch?v=vFgLVU-eKRE
Hi i just finished my first year of general engineering and am on a 4 month break. If there are any senior engineering students or engineers out there, I just want to know if its useful to take a two month course in embedded systems and microcontrollers.
Thanks
Forgive me if this sounds really stupid. I am a new Matlab user, and I have about 200 data sets from various samples in the naming format "varname_sample_daily" and i wish to remove the "daily" portion of it from the variable name through an automated process (i.e change all file names to just...
What are the current capabilities of modern Theorem Provers? I know about logic/undecidability/complexity theory so go ahead and use that jargon. Anyway, I am interested as to why Theorem Provers are not talked about (at least not by math professors). Why have I not heard the following sentence...
in a classroom teacher are asked doubts on the topic taught by students . they are critical in helping their understanding of concept. what can be the extra information that may be useful for the teacher that can be asked along with the doubts in an doubts query form?
Hello everyone I'm new here:
So I was about to write some SAS or R to do the following, but now I'm getting old enough to realize most things I think of were thought of before (usually by people way smarter than me). I've done some googling, but I haven't found the golden answer yet.
I'd...
Here is a link to Cal Polys ACS they built. My question is: they claim each reaction wheel is angled at 29.3 degrees. Why would that be? My only guess is that they are each pointed at the CoM.
I am in need of a system that will automatically place some kind of mark onto a car panel after a certain amount have been produced.
For example :- After the panel has been pressed it leaves on a conveyor to be put into racks or boxes by an operator. In this case the boxes are only to contain...
i'm trying to build a launcher that automatically launches after a period of time. it has to launch 4m and launches a projectile weighing no more than 50g. what kind of mechanisms would i need to use?
thanks!
Camera "clicker"
I need to take a picture every 5-60 seconds for about 2.5 hours. The problem is, I won't be near my camera when I do that. I want to make something to attach to the "clicker" or whatever it's called on the camera that will click it about that often. The button definitely...
If one sees something that instantly annoys them (without conscious thought put into making themselves annoyed), would this programmed habit of being annoyed be called an engram?
e.g.
One comes upon something left where it "shouldn't" be, for the 100th time (and becomes annoyed).
Howdy everyone, I have begun work on an automated security system. Essentially it is a mounted machine gun made to keep your children safe. I have begun work on models and finished the automated firing mechanism, but am still in the early stages of development. On the image below, you will see a...
I'm doing something that requires pressing my computer's mouse button once every 15 minutes so I'm trying to find something that will automatically do it for me whether I'm there or not. If anyone has seen that Simpsons episode where Homer uses the drinking bird to press the "Y" button on his...
Homework Statement
I am currently tring to work out the torque that is required to lift a bike seat of mass 2kg at a rate of 10mms-1 with a given screw thread and nut. how would i go about this?
Also is it possible to calaculate the shear force experienced by the thread of the screw and...
I want to write a script that will automatically backup my documents to a remote computer. I have a lot (~500 MB) of files, so I only want the files to be backed up when a newer version exists.
Short version of the question: how do I read a single line from a text file using bash?
Long...
Ok so I wanted to help save energy by having the computers in my house shutdown after 11:59pm on a daily basis. I used the task scheduler and had the shutdown.exe initiate at that time if the computer is idle for over 15 minutes at the time and attempt for the next 60 minutes if its not. Now, I...
Hey I was looking at Jurassic Park and they talk about Hoods (automated gene sequencers) and they say they're machines that work out the genetic code by themselves. I don't know if those exist or not but
Hypothetically could somebody pay someone to give them their genetic code on paper? (or...
Is it just me or is anyone else just fascinated by production lines, especially the ones that do things at speeds that just look like blurs. I saw modern marvels i think and they were showing the tootsy roll factory and they were showing the individual tootsie rolls being made and it was just a...
hi ..i have a little problem here...if u go to this site,
http://www.singaporepools.com.sg/fd_results3yrs/
u see the scroll down button...there are a lot of dates...each date links to a page in which i want to copy some data into a text file.
and this apples to all other dates...
anyone...