Design Definition and 1000 Threads

  1. F

    Design a 4:2 priority encoder with active low and enable

    Homework Statement Design a 4-2 priority encoder with active low and enable. Homework EquationsThe Attempt at a Solution Here's my work , but I don't know how to connect the enable input. Any help would be greatly appreciated ! ##A = \overline{I2}+\overline{I3}##...
  2. S

    Event-driven system and subscribers missing events

    Let's say I have a service that publishes events, like eo ("Bought 100 shares of AAPL") e1 ("Bought 100 shares of T") e2 ("Sold 500 shares of TSLA") and there exist stateful services subscribing to the events and whose state depends on the events being processed successfully and in the correct...
  3. F

    Design a 3:8 Decoder using 5:32 Decoder

    Homework Statement a) Design a 3:8 Decoder using 5:32 Decoder. b) Design a 5:32 Decoder using 3:8 Decoder. Homework Equations - The Attempt at a Solution a) b) ( X3 and X4 are grounded , because we need 3 inputs only ) Could someone check my answer please ?
  4. F

    Engineering Design a logic circuit to add two 2-BCD decade numbers

    Homework Statement Homework Equations - The Attempt at a Solution Here's my work : When I added 0000 0001 to 0000 0000 , I didn't get the correct answer . Could someone check where is my mistake please ?
  5. F

    Design a 2 to 4 Decoder using 4 to 16 Decoder

    Homework Statement How to design a 2 to 4 Decoder using 4 to 16 Decoder ? Homework Equations - The Attempt at a Solution Truth Table : A B 0 0 0 1 1 0 1 1 ( O3) Is my answer correct ?
  6. K

    Help me design a Vacuum Drying system

    Hello all, I've been entrusted a project of developing a Vacuum Drying System for my company. This system will be used for instant drying of automotive parts after washing. Needless to say the parts will be wet and at an elevated temperature (approx 50 degree C). The requirement is to dry the...
  7. V

    Design courses for Electrical engineering

    Which Design courses are available in Electrical engineering for getting good job opportunities
  8. P

    Radar System Design: Reduce Power & Range for 1km Reach

    I have been reading up on clear-air pulsed radars and am wondering if it is possible to scale down a large radar system to one with reduced power and gain, but also greatly reduced range. Here are the specs for a large radar: Output power = 2.5 mega Watts Antenna gain = 47db. Range = 15km. If...
  9. S

    Microservices architecture disaster

    Let me describe the problem I see as an engineer when a business wants to create microservices out of its "monolith" (a term used derisively to describe an existing service that works quite well). You have X that you want to divide into A, B, C, or maybe A, B, C, D, E. So you want to create 3...
  10. EelAnes

    What is the coefficient of drag on a flat surface?

    What is the coefficient of drag on a flat surface? Note: The body is in free fall The object has 2 wings planform (it's a paper helicopter), which is flat The object's wing spin in a circular motion (anti-clockwise) during free fall
  11. A

    Shell and Tube Exchanger Design Problem

    Homework Statement 51300 kg/hr caustic soda (= 1.115, = 0.349 Btu/lb ∙ ℉ ∙ ft) leaves a dissolver at 190℉ is to be cooled to 120℉ using water at 80℉ which will be heated to 120℉. Knowing that the specific heat and the viscosity at the mean of 0.88 Btu/lb ∙ ℉ and 0.76 cp respectively. Plant...
  12. P

    Is this kind of pressure chamber design possible?

    Hi! Given that the chamber is airtight and no air leakage occurs, is the design in the picture below possible? Can the pressure inside the chamber cause the button (black part at the top) to be "pushed"? https://imgur.com/a/wOSD30D Obviously the temperatures are over-exaggerated, but the...
  13. A

    Gear Wear Rig Design: Calculating Load for Maximum Durability

    Below I've attached a sketch of the rig designed to wear down the gears.f Firstly my project idea is to test the durability and overall wear of plastic & 3D printed gears however the 3D prints will be electroplated to see what difference it potentially makes. The idea of the rig is to have a...
  14. A

    Design of a Double Pipe Heat Exchanger

    Homework Statement It is desired to heat 5130 kg/hr of cold benzene from 80 to 120℉ using hot toluene using double pipe heat exchanger. Toluene will be cooled from 160 to 100℉. The specific gravities at 68℉ are 0.88 and 0.87 respectively. A fouling factor of 0.001 should be provided for each...
  15. SeeSharp

    Automotive Design and Simulation of a four stroke Otto engine

    Hello, I am looking for resources that show you how to design an simulate and engine from scratch. I want to design a complete engine using CAD. Afterwards I would like to analyze the engine using FEA and CFD (Heat transfer, fluid flow etc.) simulations. This is all for learning purposes. I...
  16. O

    How to design a motor with a given set of requirements?

    Let's suppose we are given a set of requirements and we are to design a motor that meets them. Requirements are: 3 phase synchronous, 480v, 50Hz and of hysteresis type and alnico is the only available option and it should deliver a 0.6N.m output torque. Dimensions should not exceed 150 mm and...
  17. W

    Engineering Grounding Op-Amp circuit exercise

    Homework Statement 2. Homework Equations 3. The Attempt at a Solution For the first set of questions: I've worked through to part 6), at which is I encountered my first problem. I'm not entirely sure what the question is asking. Is it as if there would be a capacitor between...
  18. polytechnophile

    Where Can I Find Electrical Design Case Studies?

    Can anyone recommend a place to find case studies in electronics design? I am looking for concrete examples of the engineering process from requirements definition through PCB layout. As a physicist who designs instrumentation I would like to improve my improve my design process and employ more...
  19. J

    Air Turbine Design -- advice regarding a Hall sensor type air flow meter

    Hello all, I am after some advice regarding a hall sensor type air flow meter. I know from experience that most hall sensor flow meters allow a bypass of fluid around the turbine/fan. However I would like to know what would happen if this was the case of the design below. Specifications...
  20. Lapse

    Engineering Design Circuit to Convert Current to Voltage | LTSpice Also

    Hello, We just finished up midterms and I actually did well--got an A. However, somehow between the midterm (class before last) and last class we jumped to creating a circuit with a diode. I am pretty lost. 1. Homework Statement Homework Equations Voltage / Current = ResistanceThe Attempt...
  21. R

    How to design self-reversing screws?

    good afternoon I would like to design a self-reversing screws for a small personal project, but I can not find anything to be able to carry it out, as well as measurements, thread pitch, gypsi, ... to see if you can help me
  22. B

    What design of a drive system should I use?

    Hi there! I am currently making a design about drive systems used for micro-hydro scheme. I don't know what type of driving element is suitable to used for transmitting the power from a turbine (cross flow turbine) to a generator. I'm planning to use both chain and sprocket & V-Belt Pulley which...
  23. prashantakerkar

    I How have changes in table tennis racket design affected the game?

    https://en.m.wikipedia.org/wiki/Table_tennis_racket Would like to know the impact for the table tennis game if the racket is changed to a String type Lawn tennis or Badminton racket? Thanks & Regards, Prashant S Akerkar
  24. charliebrown

    Patient Lifter Boom design for my ME Senior Project

    Hello, I'm a student of mechanical engineering and I'm doing a project for my university in order to graduate. Right now we are doing the design for the boom of the crane but I have some doubts according to the analysis we could say is the FBD part my team says that the beam is considered as fix...
  25. Ripcord96

    How to approach the design for a boat step by step?

    Two pontoon boat design approach and how to find center of gravity, center of buoyancy, buoyancy, volume of displacement, meta center, meta centric height. I need to know is there a different approach to designing dual hulled boat than a single hulled boat and all the formulas and examples I...
  26. AchillesWrathfulLove

    How do I learn to design and make my own electronics

    I have currently only worked on resistor networks and gaining the skills to analyze them. I am now beginning to learn about RL, RC and RLC circuits and still I don't think this is enough knowledge to create my own circuits. To create a circuit you must have a function in mind as in "what do I...
  27. Ben2

    A Quaternions and Video Game Design

    On p. 566 (Section 563) of Hamilton's Lectures on Quaternions, I find "Operating with phi, and making reductions analogous to those of recent articles..." The 2nd derivation, beginning with "phi rho prime" so far totally eludes me. Let me apologize if this is the wrong forum. Quaternions have...
  28. cpcoe

    AC vs DC servo motors in large scale cable robot design

    hi, I'm designing a 50ftx50ft, 8-cable Cable Driven Parallel Robot and am thinking this is a pivotal decision. the corner posts are 10ft tall and the machine should be able to lift 100lbs at least 5ft off the ground. traveling speed of the end effector is less important than accuracy but I'm not...
  29. Ridzuan

    RTG crane -- hydraulic motor and linkage design to turn these wheels

    Hi all I would like to ask your professional guide in designing a hydraulic system. I attached a file, showing sketch of the RTG crane wheel structure. Here are the conditions: 1. The red-line is the hydraulic cylinder with "X" as the fix point. 2. The hydraulic cylinder will stroke out from...
  30. A

    Can a Transfer Function be Used with a Fuzzy Controller for a Prosthetic Hand?

    Hello everyone, I'm new here and I'm working on designing a fuzzy controller, okay so i have a transfer function of a prosthetic hand (23s^2+ 12s+.. / 10s^3 + s^2 + ...) per say, so i have 3 outputs and 2 inputs. How can I use only the transfer function and use it with a fuzzy controller?
  31. Syed Alam

    Career in "Reactor Physics and Core Design"

    Dear all, I have completed my MSc and PhD in Nuclear Engineering (Reactor Physics and Core Design) from a UK university. I am currently working at a National Lab in France. Can you please suggest/recommend me a site where I can find the most suitable jobs related to Nuclear...
  32. Z

    Java How to design chrome logo programatically?

    Hi, Can some body please guide me how to design google chrome logo programatically? I don't want the embosing or outward effect. I thought it can be done by dividng the circle into 3 portions, 120 degrees apart. But where to start this partition to give it an original look. Also we can have...
  33. SilverJW

    I Designing Rehabilitation Equipment for an Upper Limb (arm)

    Before I ask my question, here's a little introduction of myself. I am a college student studying in Bioengineering, so I've been tasked to create an equipment to help rehabilitation for upper limb (any point of the upper limb, doesn't have to be the entire upper limb). So I have this initial...
  34. M

    Engineering What are some books similar to P. Orlov's Fundamentals of Machine Design?

    Hi. I have a problem and I will be so grateful if someone can help me with this. I would like to know are there books that are similar to P.Orlov: Fundamentals of machine design 1,2 and 3. The book should include pictures of what is wrong and better solution of certain design. Thank you in...
  35. B

    MHB Jack's Rhombus Ring Pattern: A Unique Geometric Design

    Jack draws rings of rhombuses about a common centre point. All rhombuses have the same side length. Rhombuses in the first, or inner, ring are all identical. Each rhombus has a vertex at the centre and each of its sides that meet at the centre is shared with another rhombus. They all have the...
  36. malak

    I Michelson interferometer dimensions

    hi i want to design michelson interferometer device for measuring small distance movement i am using laser diode with a wavelength 635 nm and power 3 mw can anyone tell me how can i decide the dimensions (from source to beam splitter , for beam splitter to fixed mirror , from beam splitter to...
  37. mastermechanic

    Misc. Bicycle Design (Individual Project)

    Hello everyone, I have not been here for a long time. Now I'm here for a DIY project. Purpose: I want to design and manufacture my own road bike and ride it as soon as possible. I want to design nearly all parts on a bike except for the wheels, chain, saddle, cables, maybe shafts and bolts and...
  38. T

    Seawater sample temperature control – heat exchanger design

    I’m designing a system where a sea water sample must have its temperature controlled between near its freezing point (-2°C) and +30°C to simulate sea temperatures. To control it, the sample will be in contact with a block, which will be controlled by an external circulating water bath. The image...
  39. AlaskaJoe73

    Design load of a water tube ride, such as on a cruise ship

    When designing the structure of an elevated water tube ride (water flows by gravity through a tube large enough to accommodate 2 people on a float, say 500 lb. max. and the volume of water is constant) how much effect does the object floating on the water have?
  40. V

    Engineering What is the role of an electrical engineer in electric design?

    I would like to share some information related to electric design. Electrical design includes planning, creating, testing and supervising the development and installation of electrical equipment, including lighting equipment, power systems, power distribution, fire and life safety systems...
  41. V

    What are some best options for PCB design software?

    I need help in selecting best pcb design software out of kicad, eagle and altium. I have to design pcb for my project. But I am having confusion in these software.
  42. Y

    Rotational Mast System - Transfer Function, PID Design

    Homework Statement Given the system above, were a motor is rotating a mast that is attached to a second second mast by a spring with a spring constant K and a damping coefficient D. The motor has a current I applied to it with coefficient K Below are the provided values. K_s is the...
  43. physea

    2^k factorial experiment design

    Hello! In this webpage: https://onlinecourses.science.psu.edu/stat503/node/35 it describes the 2^k factorial experiment design. I understand that k is the number of factors that we are investigating (in this case two, a and b), 2 are the levels of each factor (+/-) and 2^k=4 is the number of...
  44. W

    Difference in order of execution and design in SQL Server.

    Hi, given Sql server executes queries order from, where, group by, having, select, order by. Why don't we write queries in same order? Would that improve speed of execution ?
  45. Kaura

    Designing a Disc Golf Launcher: Feasible & Accurate?

    For my Engineering class I have to work with three other people to design a device that launchers a disc golf. So far we have a basic design plan but we are unsure if it is actually viable. Essentially there will be a platform that holds the disc in place and will be propelled by 2 to 4...
  46. A

    Where to Learn how to Design Circuits?

    Hello, I'm currently getting my degree in mechanical engineering but have lately taken an interest in electronics. I've ordered several books and have learned a ton about resistors, capacitors, transistors, diodes, etc. However, every circuit I have made so far has been one that somebody else...
  47. D

    Structural Design Homework: Landing Support Analysis

    Homework Statement For the first picture , i was told that the landing is supported by the beam . So ,when we are doing the load analysis , the load analysis of the staircase and landing are combined . however , for the second example , the landing is said to be the support . so , when we are...
  48. F

    Pumping Water -- Please check my pump system design work

    Hey Folks! Just need a quick sanity check ... Putting in a new 4in well and submersible pump ... trying to wrap my brain around the "physics" of it ... Here is what I ***Think I Know*** : 1) The Energy required to move any given volume of water to ground level can be calculated using M*G*H ...
  49. Glenn Emmers

    Can Rogowski Coils Be Used Without an Integrator for HOKA Applications?

    Dear all, I'm currently working on an open core PCB rogowski coil and came up with the following design: I concluded that the asymmetry wouldn't be a problem if the coil is centered precisely around the conductor and cause it's mainly supposed to operate around 50 Hz. Is this a good...
  50. B

    Simulation Software for a Permanent Magnet Alternator Design

    I am looking to try some design ideas using PMs for alternator design. I am a retired EE so I do not have corporate capital for simulation software. Does anyone know of low to medium cost simulation software that might be workable for basic flux/emf/etc calculations and modeling? Or other...
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