Design Definition and 1000 Threads

Hi, I am interested in designing an electrode that reduces the peak e-field intensity at the edges of the electrode. I've read some papers and it looks like there are quite a few. I'm not really familiar with the terms, so I decided to start off with what looks like is one of the simpler ones...

Im now drawing sheet metal blueprints, which has a feature like attachable of Commonly use of CPU Cooler. The product that i want to attach is Cooler master Hyper T4. is there any information about standard dimension for regular cpu cooler installation ?

Hi everyone! I'm a mechanical engineering undergraduate and am designing a linear motion system for a school project. I hope to be able to use this system to achieve opposing motion for 2 x 200 kg loads (i.e. move them closer/ further apart simultaneously). Referring to the picture below...

Hello Everyone, I have been working on a lens design that requires a concentric meniscus lens. Initially I was under the impression that r1 should equal r2 for the light to exit at infinity when entering at infinity. However my ray diagram shows different, it shows the light is being bent...

I am in the process of designing a pumping/piping system for fun, have no experience in this field, but I enjoy learning. I have been using ANSI/ASME codes in the project quite a bit. For the system I am using 4" nom. Schedule 40 316 SS pipe. The reason I selected the pipe is because the...

Hello all- I am trying to design a simple cell phone holder that will be printed using a 3D printer. For this phone holder I would like the base to be the minimum length possible to avoid the thing tipping over backwards. I drew a simplified slope and base which represents the phone on the...

Here I let ##R_2 = 2 ## kohms and ##R_1 = 1## kohms. Using this suggests that ##R_3 = 0## and ## R_4 = 1 ## kohms (?!) The resulting circuit is Is this the correct way to solve this? PS : I just realized that I have interchanged ##V_1## and ## V_2## in the diagram!

Just kind of want to find a hobby, from the trouble I got in being logged out of my computer and thanks the Sysprog for helping to resolve the problem. I am thinking about maybe I should learn more about computers. Mainly I just want to be not so helpless with computers, learning others are...

Given above is a rough model of what I want to make. This is in fact a turbine that will be placed in airlfow of 65-70 m/s velocity. I want to make it by using a 3D printer. But I want to use the best design of the blades that will give me highest output out of this airflow. Can anybody tell me...

Hi, I’ve built a classical design spectroscope for astronomy but with so many cloudy days here,I like to adapt it to looking at absorption spectra of liquids. i have an adjustable slit, and I’m going to buy a cuvette to hold the liquids. But my question is, in a normal spectrometer, is...

For a course project, I need to design a heat exchanger to cool electronic components in an UAV. The heat exchanger will be cross-flow air to liquid. The cold side (air side) properties are evaluated at an altitude of 7620 m and -34.5 °C. For the hot side ethylene glycol - water solution with a...

I can imagine a frame within a blimp/hybrid airship so when the hydrogen inside the blimp is recaptured the skin retracts to form a wing. As the blimp travels faster it shrinks, the buoyancy giving way to the lift from its wing shape to a point in which it is no longer a blimp, but a plane. What...

I am currently working on a project for an undergraduate course in university. My team and I have decided to make a hydropowered mobile device charger, and I am responsible for the design and modeling of the turbine propeller. This turbine will need to be able to function in low velocity streams...

Questions: 1. Is LM741 capable of oscillating at 10MHz? If not, could you suggest me an affordable op-amp for this operation? 2. How likely am I, as a beginner to be able to design a zero phase shift feedback filter to use with a non-inverting op-amp circuit to create an oscillator? 3. If an...

Hi, Iam having a really hard time with this university project. The project is to design and calculate the hydraulics for a deck crane. The crane boom must be lifted with one or more cylinders and you want a boom angle from 0 to 80 degrees. Lifting capacity must be 10 ton on 20 m arm at a boom...

Hello, First of all, I hope this post is in the right section (aerospace engineering). I am doing research on the injector plate design for a hybrid rocket and I'm no where at the moment. I was thinking that I could improve the geometry of the injector plate in order to help improve some...

I'm thinking about the large (for the 1960's) farm tractors I drove, that produced lots of low end torque, and max RPM was ~ 1800 ~2200 (from memory). Are there certain design factors to maximize horsepower at these low RPMs, versus a common auto engine that might peak around 5,000-6,000 RPM...

I've often wondered how realistic the Seaquest DSV submarine design was. Here are some attachments I've included: https://www.pinterest.fr/pin/326651779206382460/ I would imagine that having windows on the sub would represent structural weakness and it's overall flatness design would make...

Homework Statement:: None. This is part of implementing a project and not an actual question. It's a technical problem or equipment failure. Relevant Equations:: The Code I get is; Error: (vlog-7) Failed to open design unit file "Waveform.vwf.vt" in read mode. [Mentor Note -- moved to the...

I need to protect electronic parts in case from water. The thing is, I need to design slide switch on the cap of the housing. Maybe any ideas?

Hello, I am a beginner but I have a few board design experiences. Now, I want to learn Cadence, but I am confused. Can someone explain the difference between the following software? -Allegro Design Entry L vs. Allegro Design Entry CIS -OrCAD vs. Cadence -Signal Integrity/Sigrity vs. Package...

if an antenna 8.2 feet long was coiled up into a coil could it still receive radio signals at 30 megahertz?

When do you think we will see a difference in the appearance of our airplanes?-skaz-----------------------------------------------------Dragonball Z: "The Most Demented, but Amazing Anime of All Time"

I am looking to design a peice of artwork which will consist of a base with a stick and a horizontal-type structure which will be suspended on it (balancing on the its center). I want to have the connection be 2 magnets of the same polarity (ex: 2 magnets with the + side facing eachother). I...

I apologize if this turns out to be little more than a retread of previous topics. Hopefully, my point is to draw out from ID defendershowintelligent design goes about making those changes that cause the evolution of species, rather than just having them point out whatever...

x One Chance in 10^40,000MacroEvolution - Do-It-Yourself Creation?x Zillions of Progressive Unlikely CoincidencesScience is Often Mistakenx Intelligent Design as Philosophyx What Came First, the Chicken or the Egg?x Who Created the Universe Before There Was Science?OK to Mention Science...

do you believe the chinese fengsui?what is the proper english word for it?i think it is an art of science, not completely superstitious!for example, it teaches you how to arrange the furniture of your home,where to open the windows etc.just sounds like interior...

Take a look to this magnets configuration:http://www.geocities.com/k_pullo/iman.htmlDo you see something wrong?Is there some reason to think the device wouldn't work?

Poll Question:I'm sure a mentor will place this in the right forum as I'm not sure.Do you think evolution is part of 'Gods' plan(taking the 'God' concept as intellegent designer) or purely natural and secular.You cannot perceive spiritual truth until you feelingly experience it, and many truths...

The hedge maze at Longleat House has a very puzzling design, see here:Let's assume the hedges start radially from the center circle, but then spiral so as to form paths of constant width.Let's assume the hedges are just lines, and the path width is always measured at right angles with the...

A racetrack consists of two straightaways alternating with two 180ocurved banks. Design the banks so that their slope as a function of curve angle allows a mosttime efficientandcontinuous acceleration transitionfrom one straightaway to the other (a "brachistochrone" problem).Phase reality!{^,^}

I want to construct some speakers for my home theater system, and I want them to rival really high-end speakers in terms of quality. I'm just wondering what principles are used in designing and construction high quality speaker enclosures. How does one type of enclosure affect sound and speaker...

Ok, i can build a bridge to span 0.3m between 2 supports supporting 10kg at centerora tower, 0.25m tall, supporting 10kg for a project.which should be easier/better?and i can use one of these materialstoothpicksused matchesspaghettiplastic drinking strawswhich should be stronger/easier?thanks!!

Wah ha ha!!! I got it now, tremendous graphic design, great!!!!!--------------------------------------Daniel, a sincere truth & happiness seeker.

When do you think we will see changes design changes in our space shuttles?-skaz-----------------------------------------------------Dragonball Z: "The Most Demented, but Amazing Anime of All Time"

have you seen the new Swivel iMac?the design is very futuristic and creative,I love it!it costs USD1299, ringgit 5000.in Malaysia, iMac user is very less,you will have problem to share with people.--------------------------------------Daniel, a sincere truth seeker.

I have a Idea that if it works might give bill gates a heart attack.what if you made a hard drive that was nothing but a computer running itself thought a computer processor.ram booted into this hard drive would be running information.you would need software to run the ram hard drive to interact...

I have a couple ideas for aircraft. We have all seen propeller planes flying around small airports. What confuses me is where the point of thrust is and where it should be. All conventional prop planes have the prop in the front. When the prop is on the front, it creates stable thrust...

The ID movement (Intelligent Design) is getting a strong following in Molecular and Evolutionary Biology, as well as Theoretical Physics. I don't know too much myself, but for those who don't know I'll give you some of the background and arguments for it:The ID movement basically believes that...

i need some kind of design for a small catapult. i don't need anything that is humongous like just a simple idea to help me with a project.

I have to make a transporter (transporting device) that carries an egg without breaking it. The device can only be powered by a rubber band and nothing else (cannot shoot the car). The device must be in contact with the ground in all times. Can anyone tell me how I can design the device and...

I came across this LED binary clock on .I'm interested in making my own with a different design, but I can't seem to find any circuit diagrams on how they work, any ideas?Thanks"Keep going guys we're building up thurmo-nuclear energy with our turbo power!"

I have a question on rotational inertia. I need to design and fill a can with contents that cause it to have a large moment of inertia or to fill it with contents that will counter the torque caused on the can by gravity. The can is a regular metalic cylindrical can. Any advice on how to...

Hey Janus,What software program did you use to create the pic in the pi=3.14159... thread?I had an apiphony (how do you spell that?) in Linear Algebra as to how AutoCAD and other drafting programs handle line information and make rotate, mirror, etc. commands using matrix transforms.I'd like to...

The Discovery Institute, () a group that support the idea of intelligent design has the following information on the "about the center" section of the website:During recent decades, evidence from many scientific disciplines has suggested the bankruptcy of strictly materialistic thinking in...

Hey everybody...I have a project in physics: Egg Drop. I have to build a vehicle that will safely carry an egg from the top of the football field bleachers to the ground ( a height of 15 m). In addition, I have to accurately explain the intended operation of the vehicle by applying the physics...

Poll Question:I've just heard that the state of Ohio passed a ruling that the schools have to add the theory of "Intelligent Design" to their Biology curiculum. I also heard that any books that contain the theory of Evolution (in Ohio) now have to have stickers on them that read something like...

have anyone heard of this 'galloping gertie's effect' thingy? think it has something to do with resonant and such... it will be real great to have some explanation. thnx

I never see anyone use the img tags, or is it just me?~Monique~

I was wondering if someone could help me find or knew where there would be some good plans/ideas for a catapult design that uses at least a 4-bar mechanism? Could actually have more than just a 4-bar but needs at least that. Are there any sites that anyone knows of? It would have to be mostly...