Ramani Aswath

Moving house is common. Moving a 6,200 Ton Building?

An amzing feat of moving an entire 122 year old building, the Machine Factory Oerlikon building in Zurich, by 60 metres foundation and all is on....

Self cleaning surfaces - Candle Soot coating sheds both warter & oil

Amphiphobic - Repelling both oil and water is the remarkable property of this nano material film devloped by researchers at the Max Planck Institute for Polymer...

How many cubes are on the trailer?

The only solution that is consistent with the three drawings seems to be one cube located at centre left in the top view. The red square...

In a room of 100 people, 99% are left-handed. How many people need to leave to bring it down to 98%?

50 lefties have to leave. The lone right hander should not leave. That leaves 1 RH and 49 LH. That gives (49 LH/ 50 total)x 100...

Login success

First time login to the new CE worked fine.

Answer: You have been given an elephant ... What would you do with the elephant?

The elephant is a vegetarian. No significant carbon emissions. 3D print a properly designed Howdah for a mobile office. Power pack can hang between the legs.

Raspberry Pi Zero Guitar Pedal

Pedal-Pi is a lo-fi programmable guitar pedal that works with the Raspberry Pi ZERO Board. The project is totally Open Source & Open Hardware and made...

Want to start on Robot Automation? A Beginner's Tour Webinar on 16th August 2018

Quote:In this webinar you will receive a step-by-step guide on how get started with robotics in automation and the key aspects to consider.From assembly and pick-and-place...

Who is an Engineer? You are if you do order of magnitude calculations

What differentiates an engineer from a scientist? Both study the same principles. Often the same text books. The former is hands on, off the cuff, quick...

Magnetic Gears are the new Attraction to Wind Energy harvesting

Quote: Bad things can happen when the mechanical gearbox in a megawatt-scale wind turbine gets overstressed. An unexpected wind gust can drive turbine blades hard, so...

question for Radiation techs

Dark glasses attenuate visual radiation, ear muffs attenuate acoustic radiation. Likewise various shields can attenuate various radiations. Depends on the type and wavelength.

Whats Ohms law equivalent in magnetic fields?

I am unaware of an equivalent law. Maybe Ampere's law relating Magneto motive force to the number of turns in a coil and the current can...

Orient Cloud 3 Fan with CloudChill Technology : Better than AC/Cooler?

Most experts agree that air for breathing should be between RH 40 to 70%. Higher humidities can lead to problems , especially for asthmatics. Even for...

Two questions about heat exchanger

I feel that 200,000 is pretty high. In any case friction factor for 10,000 to 100,000 does not vary much. The drawing shows individual fins and...

Orient Cloud 3 Fan with CloudChill Technology : Better than AC/Cooler?

There is no technical difference between this and the desert cooler. Both work on the same principle water removes 0.56 kcal of heat for every gram...

torque multiplication

<a href="https://www.societyofrobots.com/mechanics_gears.shtml" target="_blank" rel="nofollow noopener noreferrer">How to Build a Robot Tutorials - Society of Robots</a> #-Link-Sni...

What do biomedical engineers do on a daily basis?

In the hospital context, they maintain all healthcare systems, equipment, gas supply systems and such. They do not take part in actual clinical procedures. They work...

Zinger - World's Lightest Electric Wheel Chair

No this is not a medical device. Hence posted here. Quote: At 38 pounds, itâ&#128;&#153;s the worlds lightest folding chair... that can take you 8 miles...

Chris Guillebeau and The $100 Startup are in Bangalore 7PM 3/12/2012

Durga, ET, really missed meeting up. Why not you two write up a more detailed piece for us all for the news category. You may trigger...

Can an engineer become a doctor?

I had a classmate in Chemical Engineering at Andhra University back in the late 1950s. He passed out , went to USA and became a good...

nyone interested in The future world of engineering - skills

A recording of the session: Panel session recording: The future world of engineering skills and careers https://www.theengineer.co.uk/content/videos/panel-session-recording-explori...

nyone interested in The future world of engineering - skills

Register now for The Engineer UK organized free December 6th online panel session exploring what the current era of profound technological change means for engineering organisation...

Will a New Motorcycle Lighting Design Could Save Lives?

According to the NHTSA (National Highway Traffic Safety Association, USA), motorcycle drivers are more than 25 times more likely to die in an accident than standard...

What should we work on next?

If the discussions are ongoing, it may be helpful for such to be upfront.

Chemical that keeps mineral water chilled for long time

Why don’t CEans do some very basic thermal calculations? They will then know that this is theoretically impossible.

What Are 20 of the Top Tech Companies Paying Engineers?

Design News reports: Jobsite, <a href="https://www.glassdoor.com/index.htm" target="_blank" rel="nofollow noopener noreferrer">Glassdoor Job Search | You deserve a job that loves...

“Deepfakes” are here, now what?

Mozilla says: In a 2018 video, Barack Obama looked into the camera and warned:â&#128;&#156;Weâ&#128;&#153;re entering an era in which our enemies can make it look like...

5 of the Best Free Software Stacks for AI Development

Design News says: Advances in artificial intelligence (AI) and machine learning (ML) have had a significant impact on the industrial, consumer, automotive, and entertainment market...

Salto jumps at complex tasks with new control systems

The Engineer (UK) reports: In work being carried out for the US Army, Salto â&#128;&#147; saltatorial locomotion on terrain obstacles â&#128;&#147; has been modified for extra...

Amazing (albeit bombastic) speech by Netanyahu at Washington DC

<a href="https://www.dropbox.com/s/qfje2vosl98gvdu/VID-20190529-WA0000.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - VID-20190529-WA0000.mp4 - Simplify you...

How To Create A Career - Darius Foroux

Darius asks: You and I both know that a fulfilling career doesnâ&#128;&#153;t come for free. The price is hard work and effort. Iâ&#128;&#153;m willing to pay...

10 Breakthrough Futuristic Military Technologies to Watch

Design News reports:#-Link-Snipped-#

Pune or Indore - Best city to study engineering?

What’s wrong with Pune? You will know on CE that the best place for engineering is inside your own head.If you have a hankering for it,...

Boolean algebra. Need help please

#-Link-Snipped-#<a href="https://www.google.co.in/search?q=nptel+boolean+algebra&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">nptel...

Are you prepared for the new Groups + Discussions merger?

Suppose a post put up in general category also has a special group relevance (happens often) can the poster have an option to classify it under...

The Future is Bright: Sights and Sounds from ISEF 2019

Machine Design says: Senior Technology Editor Bill Wong made the trip to the Intel International Science and Engineering Fair in Phoenix, which attracted over 1,800 top...

What should come in the place of question mark? Can you find the pattern?

B 14, I think.Subtract 1 from each peripheral number and multiply all.(4-1)x(3-1)x(5-1) = 3x2x4 = 24(3-1)x(7-1)x(2-1) = 2x6x1 = 12So, (8-1)x(3-1)x(2-1) = 7x2x1 = 14

15 Puzzles That Will Keep You Up All Night

World Industrial Reporter has this:#-Link-Snipped-#(Tried posting on puzzles group. Could not open the dialogue box. Hence here)

Braided frame keeps very light rail on track

Engineer (UK) says: The frame, which is weaved, or braided, from carbon fibre composites into a series of tubes that can be easily fitted together, has...

Engineering expertise is a powerful communication tool. Do we use it?

Engineer (UK) says: Engineers solve the worldâ&#128;&#153;s most complex and important problems. They should use that expertise in their marketing, says David Lewis, director of Me...

What are the best open innovation platforms/communities for engineers?

Two (best or not) are:Engineers Without Bordershttp://ewb-international.com/Engineering World Healthhttps://www.ewh.org/

The Best Free Apps and Software You're Not Already Using

Disclaimer: No idea about any of these. For what it is (if it is) worth:<a href="https://gizmodo.com/the-best-free-apps-and-software-youre-not-already-using-1834792226" target="_bl...

Five essential business skills for engineering entrepreneurs

Ana Avaliani of the Royal Academy of Engineering discusses why it is critical that we close the business skills gap to drive engineering enterprise.#-Link-Snipped-#

A deeper look into NERA – the world´s first fully 3D printed E-Bike by NOWLAB

Engineer(UK) says: BigRep unveiled the NERA E-Motorcycle on November 13, 2018 at Formnext and it went viral!Now letâ&#128;&#153;s take a deeper look at how the worldâ&#128;&#153;s....

How do I calculate the future cooling demand

Since it is a green house, solar radiation will be the maximum load, added to this will be the 1700.05 kW from lighting. The peak worst...

How do I calculate the future cooling demand

Just what I suspected. Then the roof is probably glass, maybe tinted, which will reduce the transmitted solar wattage. Greenhouses are used when the outside ambient...

Five-seater electric air-taxi lifts off in Munich

Engineer (UK) says: German startup Lilium has completed the maiden flight of its all-electric air-taxi, a five-seater VTOL tiltjet capable of covering 300km in 60 minutes.#-Link-Sn...

How do I calculate the future cooling demand

What is this total area of 7700 m^2? Floor area? Area of walls plus floor plus roof.It is impossible to get any meaningful figure unless one...

Will a load below the fatigue limit cause breakage on a piece of immobile iron?

At ambient temperatures and stress levels well below the yield stress there should be no relaxation in a truly elastic material.In some old churches in Europe...

How do I calculate the future cooling demand

Thee are too many loose ends in the description. If the total area is 7700 m^2, it cannot all be in one plane. The biggest heat...

What is mean by MIG in electrode

I am guessing. MIG may refer to Metal Inert Gas welding. Consumable electrodes are used for this.#-Link-Snipped-#

Will Blockchain handcuff the hackers and cut corruption?

If the above can happen as suggested by 'Electropages', Blockchain will be blocked by most governments.<a href="https://www.electropages.com/blog/2019/05/will-blockchain-handcuff-h...

A truly CE idea: Put out a fire in space by vacuuming it

Tech Briefs says:Researchers from the Toyohashi University of Technology in Japan have developed a new type of fire extinguisher that is optimized for space-use and does...

Stress relaxation limit for steel

Stress relaxation is more applicable to viscounts-elastic material like glass, polymers and composites.Steel, within the elastic limits at ambient temperatures, is quite unlikely t...

Will a load below the fatigue limit cause breakage on a piece of immobile iron?

Consider this. The bottom portion of the column has been under more than 5 tonnes compressive load since 402 AD. However, it is only 5 kg/sqcm,...

Will a load below the fatigue limit cause breakage on a piece of immobile iron?

Creep happens at a higher temperature. Nothing much happens at ambient temperatures.Here is a description of the famous iron pillar at Delhi built in 402 AD,...

Will a load below the fatigue limit cause breakage on a piece of immobile iron?

Creep is another process that can cause problems in certain metals even when they are stressed well below their yield strength. In the case of iron...

Will a load below the fatigue limit cause breakage on a piece of immobile iron?

Not likely. However, stress corrosion cracking is possible in such cases.#-Link-Snipped-#<a href="https://en.wikipedia.org/wiki/Stress_corrosion_cracking" target="_blank" rel="nofo...

How to remove water from liquid digestate?

My apologies. Sea water has nearly 3.5% salt not 1%, almost the same solid content as the residue you are looking at.

Internship at BHEL for second year biomedical engineering student

Where are you doing your biomedical engineering studies?Aravind eye hospital in Puducherry does some amount of biomedical research related to sight. Have you checked out if...

How to remove water from liquid digestate?

In my opinion the solar open pond evaporation process used for salt from sea water ( solid content about 1%) can be applied to this. It...

AI for speech recognition projects

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Why does a motor take 1 ampere when current passes through auxiliary contacts, whereas it takes 10 ampere?

In a single phase motor, W= VxIx cos(phi).Full load current of a 1 hp induction motor will be about 8 amps taking into account power factor.You...

Why does a motor take 1 ampere when current passes through auxiliary contacts, whereas it takes 10 ampere?

The question is not clear. A sketch of the circuit may help.

Learn The Entire Python Language In A Single Image

The only pythons I know of were some in my grandfather's farm and a huge one that I saw in Thekkadi sanctuary in Kerala. No idea...

How to Write Email with Military Precision?

From Pocket: A few tips on how to craft emails to quickly and clearly relay messages and avoid miscommunication.<a href="https://getpocket.com/explore/item/how-to-write-email-with-...

Classical Automation enters the Alien World of IT

DesignSpark says: In the first of a new series, Dr Volker de Haas, designer of the open source PLC/IPC Revolution Pi, explains the core differences between...

The Best Space Movies of the Last 10 Years

Design invites: Take a look at how space has been portrayed in film over the past decade, from nonfiction movies such as First Man to space...

Changing an Atom or Two of an Electrochromic Material Changes its Color

Machine Design says: A serendipitous discovery by a grad student at the Georgia Institute of Technology has led to materials that quickly change color from completely...

How to create awesome PPT for seminar

#-Link-Snipped-# has given (without a PPT!) all that needs to be done.If the audience are peers, you can be technical all the way. If it is...

Uses of slew rate or rise time.

<a href="https://ieeexplore.ieee.org/abstract/document/1084518" target="_blank" rel="nofollow noopener noreferrer">A model for slew-induced distortion in single-amplifier active fi...

How to convert cable thermal losses [Watts] into enthalpy?

1 kwhr = 860 kcals 15 watts adds 13 kcals of heat in an hour. That much extra has to be removed by the cooling system.

Im asking of ideas to add to my project also how to calculate how much solar panels generate?

A solar tree is a large scale solar power generator. Why do you need that for charging phones? Solar trackers themselves need power and are complicated...

DETECTION OF FAULT IN PIPELINE

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Best Robot Names Collection

KABOT   GOAT   CEREBO  BALLOT   EXBOT   TINYTOT   MEGABOT

The jet propulsion with closed combustion type

The crucial issue may have to do with the door mechanism.How do the doors open and close? What is the fatigue life for such a mechanism?

Why zener diode conducts currents in reverse but why not semiconductor diode?

<a href="https://nptel.ac.in/courses/122106025/9#" target="_blank" rel="nofollow noopener noreferrer">NPTEL IITm</a>

Intel and Cray Will Deliver First Exoscale Supercomputer to National Lab

Machine Design says: Intel Corp. and Cray Inc. will deliver the first supercomputer with a performance of one exaFLOP. It will be named Aurora and be...

"4 Crazy Medtech Innovations" That Are Tearing up the Script

MD&DI says: Decision Resources Group (DRG) released a new report today, "4 Crazy Medtech Innovations" that identifies four areas of medtech innovation that are forecasted to...

Webinar on AI for embedded system developers

Design News says:Join us today at 2:00 PM EDT for the start of this weekâ&#128;&#153;s course Machine Learning for Embedded Software Engineers.Artificial intelligence has long been...

Graduation research project about using FRP for strengthening tubes

This is not about tubes. However, it does cover Civil engineering applications:#-Link-Snipped-#

Graduation research project about using FRP for strengthening tubes

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=thin+walled+composite+tubes&btnG=" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a>

The all-new Avishkaar Maker Studio makes personalization possible!

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Graduation research project about using FRP for strengthening tubes

This is a materials science project. FRP tubes are mature products. Any number of them are freely available in the market. What is the specific research...

Avishkaar Summer Internship Program 2019

I got introduced to Avishkar through CE.They have come up with an exciting summer internship programme for 2019. CEan students can have a look.Avishkar asks:Are You...

Facebook Has Released a Machine Learning Tool to Help Engineers Code

Design News says:Engineers will often write code that can be similar or identical to code used elsewhere. A tool that allowed programmers to search though the...

Discussion about Thermoelectric

Seebeck effect is what you observe with a thermocouple. When there is a temperature difference between two junctions of dissimilar metals a voltage difference arises between...

Need help building UI for partially/blind people

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Discussion about Thermoelectric

Details missing. Unable to make out what is required.

Need help building UI for partially/blind people

Many will be colour blind as well. This may have to be figured in. Will all be able to read English?If the sight is really poor...

Meet Blue, the Low-Cost, Human-Friendly Robot

Robots may have a knack for superhuman strength and precision, but they still struggle with some basic human tasks such as folding laundry and making a...

Displacement settlements. Surface Water Management

<a href="https://www.google.com/search?q=Disaster+management+in+India&client=firefox-b-d&tbm=isch&source=iu&ictx=1&fir=TXcMhzkLLX9UhM%252CxeVy7KfkuFqptM%252C_&vet=1&usg=AI4_-kThyEW...

Displacement settlements. Surface Water Management

In most of India disaster management is a disaster in itself. Usually there is shortage of water even for essentials unless the emergency is due to...

Fabrication of solar seed sprayer

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A Black Hole Has Been Photographed for the First Time

Design News says: By its very definition, a black hole cannot be seen . They are so dense no light can escape from them. What the...

Yngwie Malmsteen goes heavy on ‘unbreakable’ guitar

A truly Crazy hard core engineering to make a   Guitar!Engineer (UK) says: An â&#128;&#152;unbreakableâ&#128;&#153; 3D printed guitar has been given the heavy metal treatment by.....

What is the future of aluminium manufacturing in India?

As of now there is no disruptive technology to produce Al economically other than the present fused salt electrolysis. The bauxite has to be purified as...

What is the future of aluminium manufacturing in India?

Government subsidies still continue in China.The group I work for is a very large consumer of aluminium. Aluminium economics is a major daily issue.There is also...

What is the future of aluminium manufacturing in India?

It is the government subsidies that causes the discrepancy.#-Link-Snipped-#

What is the future of aluminium manufacturing in India?

The real raw material for aluminium is not bauxite, which we have in plenty, but electric power, which is an issue. About 40% of the cost...

Can This Basketball-Playing Robot Beat a Professional?

World Industrial Reporter says: Japanese engineers have developed CUE3, a basketball-playing robot designed to make three-point shots. It only hit five out of eight on a...

Proposed Supercomputer Will Be Six Billion Times Faster Than a Cray-1

Design News says: A breathtakingly fast computer being developed by Cray Inc. and Intel Corp.may help address some of the worldâ&#128;&#153;s most inscrutable science and engineeri...

Difference between career graph of core jobs vs IT jobs - Can anyone share a long term view?

I use Tony Buzan's mind mapping a lot. Found this in his book: 'The Mind Map Book'.Gives an idea of one person's concept of an ideal...

Difference between career graph of core jobs vs IT jobs - Can anyone share a long term view?

There is a Tamil saying: “போதுமென்ற மனமே பொன் செய்யும் மருந்து“meaning: A contented mind is a gold spinner.As they say, in the end we are all dead.In...

Most Embedded System Failures Can Be Prevented

Design News says: Early awareness of problems is the key to circumventing failures of embedded electronics, an expert will tell attendees at the upcoming Embedded Systems...

Help or advice on how to manufacture this product?

If the spirals are nesting, that is, when looked from the top one sees all the spirals one within the other, you can injection mold in...

FindyBot3000 - a Voice Controlled Organizer, just the thing for crazy disorganised EEs

As any maker can attest, over the years, one collects a lot of parts. Perhaps it all started with a few resistors and LEDs, a breadboard,...

Free E-Book: Turnabout: Auto Industry Heads Toward Electrification

Design News says:The inevitable is upon us.After a quarter-century of fitful stops and starts, the auto industry has accepted the inevitability of electrification. General Motors i...

Handling Trillions of Supercomputer Files Just Got Simpler

Machine Design says: A new distributed file system for high-performance computing, Delta FS, was developed by computer scientists at Los Alamos National Laboratory and Carnegie Mel...

What career choice should I make?

#-Link-Snipped-# ,please see this trail:#-Link-Snipped-#

What career choice should I make?

In the face of adversity, are you a Guernsey or a Brahman?#-Link-Snipped-# 

Is it possible to give insurance to all electronic appliances?

<a href="https://reference.wolfram.com/language/guide/ActuarialComputation.html" target="_blank" rel="nofollow noopener noreferrer">Actuarial Computation—Wolfram Language Documenta...

Can you give me a examples of graduation project in GIS ?

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=g+i+s+grad+level+project&btnG=" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a>

How about a Neck Through Bass Guitar?

This instructable describes how to build a neck-through electric bass guitar with only a minimal number of electric tools.#-Link-Snipped-#

I've never used this before any suggestions?

Though nominally an engineering forum, CE is a no holds barred place. No subject is taboo. Philosophy, cosmology, quantum physics, chemistry, biology and even sociology have...

More Than Bitcoin: 8 Industries Being Innovated by Blockchain

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More Than Bitcoin: 8 Industries Being Innovated by Blockchain

Design News says: For those just beginning to understand blockchain technology it may seem that its that same thing cryptocurrency, particularly Bitcoin. What's lesser understood i...

Electro static pracipitator required power calculation?

<a href="https://www.google.co.in/search?q=t-r+set+for+electrostatic+precipitator&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">t-r s...

Electro static pracipitator required power calculation?

Such detailed engineering is beyond the scope of this site. Someone may perhaps be able to help.

Sir, please suggest me a topic for last year engineering project civil engineering ?

Temporary Relief architecture with built-in solar power for providing immediate temporary relief in disaster hit areas can be a useful project.Some ideas from here:#-Link-Snipped-#...

Saying Goodbye is Never Easy - Machine Design Editor Carlos Gonsales

Carlos says: Face front, true engineers! Alas, this will be my last editorial with Machine Design. I will be taking on a new role at the...

Do you want to take part in Designing for Children?

Designing for Children is being organized for the 2nd time from 6th to 8th of December 2019 at the IDC School of Design (IDC), Indian Institute...

What do you think about Netflix's Mobile-Only Rs. 250/month Plan?

Both my son and daughter have subscriptions for both Amazonprime and Netflix. Valid for viewing in five parallel viewing worldwide. Already configured on two iPads.We never...

With Stadia, Is Google Promising More Than the Cloud Can Deliver?

Google claims it can stream all your high quality video games to any device you own via the cloud. And if you take a step beyond...

What do you think about Netflix's Mobile-Only Rs. 250/month Plan?

I pass.

Bloodhound land speed record attempt relaunches under new ownership

The Engineer(UK) reports: The familiar blue and orange livery is gone, and the â&#128;&#156;doghouseâ&#128;&#157; headquarters near the Bristol docks is no more, but team Bloodhoun...

Can anything be crazier than this?

God save us from God-men like Niyananda<a href="https://www.dropbox.com/s/ukgvkc6ce83fank/Nitya.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - Nitya.mp4 - S...

What is the difference between efficiency and gain?

I apologise for an arithmetic error in my first post. 5 Kcal/min added to 5 litres of water will increase the temperature by 5/5=10C/min and not...

What is the difference between efficiency and gain?

Take the water example 10 KCal/ Min was put in. What was the output? Not the 5 Kcal lost by radiation and evaporation but the %...

What is the difference between efficiency and gain?

Input -> System -> OutputOutput/Input x 100 = %Efficiency1 kg diesel put into an engine say gives an output of 4.6 KWHr. ! kg diesel gives...

I need to solve the errors in my pan card: help me

Have you tried here?#-Link-Snipped-#

Fresher student how to meet job

<a href="https://www.google.co.in/search?q=civil+engineering+jobs+for+freshers+India&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">ci...

Can a gyroscope change its rotating direction?

<a href="https://www.youtube.com/watch?v=ejuoMvLugY4" target="_blank" rel="nofollow noopener noreferrer">Stroboscopic effect due to tubelight (when half propellor is white) - YouTu...

Can a gyroscope change its rotating direction?

#-Link-Snipped-# , while you are right the thing happened when he was seeing with his eyes. That can happen at speeds which are near multiples of...

Can a gyroscope change its rotating direction?

No. A free spinning Gyro cannot change its direction of rotation on its own during a run. One can start a gyro in either direction. One...

how to design a sluice valve for 10 inch diameter pipe using Indian standrad 14846:2000?

Do you mean a gate valve? Generally sluice valves are used in an open system and gate valves in a pipe. Both use a wedge to...

3 Challenges Collaborative Robots Need to Overcome

Design News says: Over the past few years, the world of small robots has expanded considerably. Robots have become affordable for smaller manufacturers. The result is...

How to determine Yield Strength from ultimate tensile strength of a material?

<a href="https://www.google.co.in/search?q=nptel+yield+strength&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">nptel yield strength -...

Why don't we put televisions on the ceiling?

#-Link-Snipped-# , thereâ&#128;&#153;s a much simpler solution doing the same thing that you want.#-Link-Snipped-#

Can we jam the radio signals by some blocks of code?

Blocking cell phones may be possible by generating a matching noise signal that drowns the data signal. It is the general AM FM radio stations that...

Can we jam the radio signals by some blocks of code?

Can you jam sunlight or moonlight by coding?An umbrella is needed. Likewise you need a radiation shield, like a Faraday cage for example.

Case study on piezoelectric harvesting mat

You have to contact them through instructables only.<a href="https://www.instructables.com/member/rjc287/" target="_blank" rel="nofollow noopener noreferrer">Rjc287's Activity - In...

Electro static pracipitator required power calculation?

I had designed an ESP system for precipitating talcum powder dust from an equipment that was used to apply this powder on rubber gloves. Since the...

Naoh Scrubbing system required amount of naoh

#-Link-Snipped-# , I am writing from just the chemistry point of view. I have not done anything on flue gas scrubbing.We id have a small incinerator...

This week’s poll from The Engineer (UK): “killer robots” and AI in warfare

 Isaac Asimov proposed "Three Laws of Robotics"1. A robot may not injure a human being or, through inaction, allow a human being to come to...

Human Engineering - We are One

<a href="https://www.dropbox.com/s/xsw7bti8gnk47y6/RIP%20Emily.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - RIP Emily.mp4 - Simplify your life</a>

Naoh Scrubbing system required amount of naoh

Not really. You can do it with water alone as mentioned earlier. But if a pH of 12 is specified, then you need that much NaOH...

What type of lightweight aggregate will give great result in concrete.

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=lightweight+aggregates+suitable+for+concrete&btnG=" target="_blank" rel="nofollow noopener noreferrer">Google Sch...

Naoh Scrubbing system required amount of naoh

The problem is that NaOH reacts with SOx and gets consumed. This will drop the pH. You have to add more NaOH to bring it back...

What Engineering Discipline reguarly uses Numerical Linear Algebra, Numerical Analysis, Numerical Optimization, Partial Differential Equations and Information Theory?

I too wanted to tell you about AI for all autonomous vehicles. Please check out some of the posts in the robotics group here on CE....

Naoh Scrubbing system required amount of naoh

If your requirement is only pH maintenance 4.8 kg NaOH in 12 m3 water will give a pH of 12 as you mentioned before.But the chemical...

crop harvesting machine (mini combine harvester)

This is not exactly what you wanted #-Link-Snipped-# , but may give some clues:#-Link-Snipped-#

Naoh Scrubbing system required amount of naoh

Actually you will need more than that amount. 75 kg/hr is the theoretical amount of Naoh needed to absorb the amount of SOx that is present...

what are the reasons of thermal battery failure ?

#-Link-Snipped-# , every domestic solar water heater is a thermal battery and it works. What is this operating time that is raised here? Rocks have been...

crop harvesting machine (mini combine harvester)

Considering the number of operations involved, it is unlikely that a workable machine that can be pulled by a couple of oxen can be developed. In...

What Engineering Discipline reguarly uses Numerical Linear Algebra, Numerical Analysis, Numerical Optimization, Partial Differential Equations and Information Theory?

Can you look at another option. Many US universities offer combined masters and PhD programs. Maybe a masters in maths and a Phd in mathematics applied...

What Engineering Discipline reguarly uses Numerical Linear Algebra, Numerical Analysis, Numerical Optimization, Partial Differential Equations and Information Theory?

#-Link-Snipped-# , if you are posing your question to me, I need a while to reply. If  Any other member has any opinion, I am...

What Engineering Discipline reguarly uses Numerical Linear Algebra, Numerical Analysis, Numerical Optimization, Partial Differential Equations and Information Theory?

Most engineers manage to get by with school arithmetic. Having said that, almost all branches of engineering (except metallurgy perhaps) use advanced mathematics for serious work....

How much monthly salary does one need to travel in private jets in India on a regular basis?

#-Link-Snipped-# , maybe we can try a different tack. Train to be a pilot and take a job flying private jets. Then one can get a...

How much monthly salary does one need to travel in private jets in India on a regular basis?

#-Link-Snipped-#INR 60,000 x n  where n is the number of flight hours in a month in addition to whatever you feel like having for living...

Self-made billionaires prove you can't be successful if you don't make time for these 6 things every day

#-Link-Snipped-# , I agree about cooking skills. Though I have workd a lot on food processing as a Chem E, I cannot claim  anything much...

Naoh Scrubbing system required amount of naoh

From the data you indicated, the theoretical requirement to absorb the nearly 60 kg/hr SO2 produced is about 75 kg NaOH/hr.Are you using 12 m3 water/hr?...

Self-made billionaires prove you can't be successful if you don't make time for these 6 things every day

Success isn't easy â&#128;&#148; and it certainly doesn't happen overnight, but there are little things you can do every day to ensuring that you achieve your...

Can robots go crazy too and do a 360 degree backflip?

Engineer (UK) reports: Mini Cheetah, a new four-legged robot developed by engineers at MIT in the US, has become the first system of its kind to...

A steel ball of 10 mm diameter at 1000 K is required to be cooled to 350 K by immersing it in a water environment at 300 K

Is this an academic problem needing theoretically correct analytic solution or a practical problem? If a good approximation is sufficient one can ignore the calculus part....

Naoh Scrubbing system required amount of naoh

Assuming 1.3 kg/m3 Fluegas density and taking into account the properties of SO2 one gets 1.86 x 40 or about 75 kg NaOH consumption/hr.Since the efficiency...

A steel ball of 10 mm diameter at 1000 K is required to be cooled to 350 K by immersing it in a water environment at 300 K

Since this is a dynamic situation it is not possible for the whole steel ball to be at one temperature as the heat has to flow...

Naoh Scrubbing system required amount of naoh

Theoretically two gm moles of NaOH will absorb one gm mole SO2 . However many other factors have to be considered in scrubbing flue gas. The...

i want a topic for my FYP ( final year project ) on Transonic Aerodynamics .

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=High+altitude+transsonic+aerodynamics&btnG=" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a...

When does a dog protect a tiger?

Just for the heck of it. Laughter lights and lightens.

What are the challenges in electrical field?

<a href="https://www.machinedesign.com/industrial-automation/spire-unhackable-power-grid-defense?NL=MACD-001&Issue=MACD-001_20190306_MACD-001_464&sfvc4enews=42&cl=article_2_b&utm_r...

Bird deflector system for jet engines.

Most things related to avionics are held as intellectual property.You may get some clues from studying some of these patents:<a href="https://scholar.google.co.in/scholar?start=0&q...

what makes a perfect team? Researchers were shocked by the results of a Google study 7years back

Put five, eight, 12 or more people together in a room, and it's a crapshoot as to how well they'll #-Link-Snipped-#. The larger the group, the...

How adding artificial intelligence to our midst could be much more disruptive?

Think of classic sci-fi depictions: C-3PO and R2-D2 working with the Rebel Alliance to thwart the Empire in Star Wars, say, or HAL 9000 from 2001:...

The Story Of CrazyEngineers - How CE Came To Life

Not many will see the downs. Authour Wayne Dyer says: "it is almost a universal law that a fall of some kind precedes a major shift."So...

The Story Of CrazyEngineers - How CE Came To Life

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Rural Road Development Project

This may help:#-Link-Snipped-#<a href="https://www.google.com/search?client=firefox-b-d&q=non+asphalt+ruuaral+roads" target="_blank" rel="nofollow noopener noreferrer">non asphalt...

Stud Welding: The Basics and Benefits

Machine Design says: welding is a heating process that uses an electric arc to join two metal parts together. A common process, yesâ&#128;&#148;but by no means...

Origami Robot Pill Developed To Help With Stomach Operations

This one injects drugs into the intestine wall for immediate absorption. The needle dissolves off.

Google and Verily Roll Out Automated Eye Screenings in India

Medgadget says: Verily, the life sciences research arm of Alphabet, and Google, the original part of the now giant company, are launching in India a screening...

A Pill, That’s a Device, That Delivers a Drug!

Rani Therapeutics just achieved one of its most significant milestones since it was spun out of InCube Lab in 2012. The San Jose, CA-based company just...

FDA Cautions Against the Off Label Use of Surgical Robotics for Cancers

Off-label use medical device use is a tricky subject and one that has been at the center of <a href="https://www.mddionline.com/congress-may-do-something-about-fda-label-rules" ta...

Solar Based Automatic Irrigation Using Soil Moisture Sensor

<a href="https://landportal.org/organization/malaysian-agricultural-research-and-development-institute" target="_blank" rel="nofollow noopener noreferrer">Malaysian Agricultural Re...

Solar Based Automatic Irrigation Using Soil Moisture Sensor

I forgot about the time delay bit.Soils have variable water diffusion rates. Sandy soils drain fast while clayey soil is slow to percolate. When a sensor...

Solar Based Automatic Irrigation Using Soil Moisture Sensor

#-Link-Snipped-# , we have to look at the dynamics of the process. Different plants have different root patterns. Not all need continuous watering. Sugarcane for example...

(Crazy?) Engineered solution to reduce craziness?

A study into the treatment of Parkinsonâ&#128;&#153;s disease has achieved a degree of success thanks to an engineered solution that delivered a therapeutic protein to participants...

Solar Based Automatic Irrigation Using Soil Moisture Sensor

In my opinion sun tracking or concentrating are contra indicated for the intended application. For one thing the cost goes up five to ten times for...

How far can we go as far as concrete grade is concerned?

#-Link-Snipped-#<a href="https://www.hindawi.com/journals/amse/2012/361857/" target="_blank" rel="nofollow noopener noreferrer">The Compressive Strength of High-Performance Concret...

Case study on piezoelectric harvesting mat

#-Link-Snipped-##-Link-Snipped-#

Analysis from Auto CAD Drawing

What kind of analysis are you considering?

Is there anyone who has an explanation of the strain issue in Strength of Materials?

<a href="https://nptel.ac.in/courses/113107078/26" target="_blank" rel="nofollow noopener noreferrer">NPTEL IITm</a><a href="https://nptel.ac.in/courses/112107146/9" target="_blank...

Topic for paper presentation: petrochemical engineering

#-Link-Snipped-# you can consider Internet of Things for process control and Instrumentation.<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0,5&q=IoT+for+process+instru...

Topic for paper presentation: petrochemical engineering

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=Extraction+of+petrochemicals+from+crude+oil&oq=Extraction+of+petrochemicals+from+crude+oi" target="_blank" rel="n...

Why is there so much strife in the world as a whole and right now in our corner?

Lennon is one of a kind. Lovely.In Mahabharata Krishna urges Arjuna to fight to right a wrong. I wasn’t so much talking about IAF action but...

Why is there so much strife in the world as a whole and right now in our corner?

Isnâ&#128;&#153;t a toddler laughing and chasing a butterfly the same happyA starving child crying for food deserves the same compassion irrespective of what nationality that unfor...

Why do we prefer semiconductor

Semi conductors have a crystal lattice structure that permits 'doping', which allows us to modify its behaviour.A conductor cannot be doped and remains a free electron...

Do You Love Your Engineering Job?

Design News says: We recently conducted a survey of Design News readers. We asked about salaries as well as job satisfaction. We also asked whether our...

How artificial intelligence is revolutionising medical diagnostics

Engineer (UK) says: Slowly but surely, artificial intelligence is infiltrating almost every aspect of our lives. It is already busy in the background of many routine...

Water supply system and design for sangola city

What, if one may ask, is the question?

Any project topic which is related to aeronautical engineering

Micro turbine engines for drones propulsion:#-Link-Snipped-#Want a Flying Drone? These Students 3D-Printed Their Own#-Link-Snipped-#

Which number should come in the triangle?

?=(56+28+63)/7= 21

Can anyone who is not a CEan get such an idea?

If Triboelectrics could become a source of power for electronic devices would it be of interest?

Electropages says: Triboelectrics is the generation of electricity from friction and it could become a new power source for electronic devices. The friction could be as...

Does every closed loop always pass through corners of some square?

#-Link-Snipped-# , I must qualify what I said about open curves. The statement is true for some (not all) open curves. I took an isosceles right...

How design multi-pulley system?

#-Link-Snipped-#

Does every closed loop always pass through corners of some square?

Why a closed curve? It will be true of open curves. In the very example shown any one of the three outside loops can be absent.Why...

Does Alum make water alkaline or acidic - and what are its health benefits?

The chemical commonly called alum is potassium aluminium sulphate. It has been used in water purification since the time of Romans. It is perfectly safe to...

What is the total current in the circuit?

#-Link-Snipped-# , you were right.  The tapping at the middle two resistors joining the middle of the two battery banks can be ignored because there...

Intelligent, Great, Genius, Innocent, Decent, etc , why people use these words without having purpose? How to react for such words? Is it good to say thanks as reply for these words.

Adjectives are usually just padding.This is my favourite book since 1957 for good English:<a href="https://www.scribd.com/doc/217456602/Complete-Plain-Words-Sir-Ernest-Gowers-pdf"...

I'm 23 and I can't decide where should i go in my career? Suggest me something.

What has that to do with being 23? What interests you and what you have done till now should be the things to point to what...

Is Astrophysicists struggling to get permanent positions?

Astrophysics (or any other branch of physics) is the whole life for one who takes to it. It is not an MBA kind of life. It...

SOx and NOx reduction of boiler flue gas

#-Link-Snipped-#

Improvements that can be made in an IOT based automatic irrigation system

How big is the area being irrigated? If large different parts may have different moisture content. The field can be divided into sectors, each one separately...

Want New ideas for your university project?

True Advaits in real life.

Can I generate energy from CDs? How does it work?

Did that. Did not work even with two LEDs in the sun and one in the dark. The LED in the dark did not glow. Not...

Can I generate energy from CDs? How does it work?

The experiment claiming the CD produces the voltage is fake. 1.37 V is just the voltage of the junction. That does not mean that we can...

Can I generate energy from CDs? How does it work?

I found an almost identical experiment on the net. Except that I used a red LED. Nothing new under the sun!#-Link-Snipped-#

Can I generate energy from CDs? How does it work?

The CD is irrelevant. It is just a support for the LEDs. If one sees carefully the resin body of the LED (an insulator) is all...

How do I know in which field I am interested in civil engineering

#-Link-Snipped-# , why did you choose to study civil engineering in the first place? Something in that field must have motivated you. Low cost housing, disaster...

Want New ideas for your university project?

Texas Instruments offer help.<a href="https://university.ti.com/en/students/design-inspiration?HQS=corp-uni-null-seniorproject_spring19-exah-lp-ElectroPages-eu&DCM=yes&dclid=CLbsgr...

I have a big problem in my project and i am askin for a solution if there's one ?

#-Link-Snipped-##-Link-Snipped-##-Link-Snipped-#

I have a big problem in my project and i am askin for a solution if there's one ?

#-Link-Snipped-# , how about a project on harvesting ambient wireless energy for powering micro power devices?#-Link-Snipped-#

I have a big problem in my project and i am askin for a solution if there's one ?

#-Link-Snipped-# , how about a project on harvesting ambient wireless energy for powering micro power devices?#-Link-Snipped-#

Can I add some skills to my CV without certificate?

Your city will certainly have French and Spanish embassies are institutions teaching these languages. They do give certificates. Likewise Autocad also sponsors training centres in...

I have a big problem in my project and i am askin for a solution if there's one ?

Carpets are shock absorbers. As such it may not be a worthwhile idea to fit piezoelectric generators in one. All piezoelectric energy harvesters are fitted under...

How to do mini project on computer graphics

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0,5&q=openGL+computer+graphics" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a>

How can I 'harden' our water supply?

My apologies. There was an arithmetic error. That should be 220 ppm. 340 will give a hardness of 200 ppm when mixed in equal quantities with...

Tomato Seed Extraction Machine

Can you use a screw press with a gap greater than the seed thickness?

How can I 'harden' our water supply?

Much simpler to mix at brewing time. Make 340 ppm CaCO3 water stock. Mix equal quantities of this with the 60 ppm water to get 140...

I am first year student studying chemical engineering. So whats the can be the best career path after completing my under graduate studies in chemical engineering?

Cooking in the context of food processing is really a chemical engineering activity.

Is this Another Biomedical Hurdle for Space Travel?

#-Link-Snipped-# , we may have to breed them there. We also do not know how many generations it would take. The Chinese may do it straightaway...

Is this Another Biomedical Hurdle for Space Travel?

Apparently people in the tropics can stand solar radiation better than those in the temperate or colder zones. They are naturally genetically adjusted. So: 'Who knows?'...

Is this Another Biomedical Hurdle for Space Travel?

NASA has discovered that more than six monthsâ&#128;&#153; exposure to outer spaceâ&#128;&#148;either through living on the space station or travelling to other planets or moonsâ&#...

New Feature - CrazyEngineers Connections!

As of now hard wired. PCB will follow. Who knows if #-Link-Snipped-# has an ICE version up the sleeve?

Scary or Cute - What do you think this robot is?

Did you say Boston Dynamics or Dynamite?I have always followed BD’s developments in Robotics and thrilled by  them.

How can I rebuild my career?

The past is dead. Just bury it. Thoughts like 'It might have been...', 'If only I had...' are of no use. One has to look ahead....

How can I rebuild my career?

Dump that thought about ruining your life.You have a BTech(EEE).  Assuming that you like EEE, just look around where you can start.Maybe an MTech in some...

How to evaluate every single device for a disease diagnosis,monitoring and intervention?

The problems are ethical as well as legal.From an ethical point, if a device is used for diagnosis and even intervention, it may function well in...

How to evaluate every single device for a disease diagnosis,monitoring and intervention?

There are many applicable international standards prescribed by agencies like US FDA, CE and such that describe what tests the device must pass including controlled clinical...

Should You Work Less and Spend More Time on Hobbies?

We are all ears!

Should You Work Less and Spend More Time on Hobbies?

Right on the nose, #-Link-Snipped-# .So does the guitar asking for more work as do my cameras languishing in the cupboard.

Should You Work Less and Spend More Time on Hobbies?

I am sure that many CEans will agree with this:As professionals around the world feel increasingly pressed for time, theyâ&#128;&#153;re giving up on things that matter...

Light but tight foam for rocket?

#-Link-Snipped-# this may give some leads on the exit nozzle design:<a href="https://www.crazyengineers.com/threads/why-convergent-divergent-nozzle-has-higher-expansion-ratio.10259...

Tricycle with tadpole configuration

Maybe some of the publications here will be useful:<a href="https://scholar.google.co.in/scholar?start=10&q=forces+on+a+tricycle+&hl=en&as_sdt=0,5" target="_blank" rel="nofollow no...

Why Convergent-divergent nozzle has higher expansion ratio?

#-Link-Snipped-#

Why boiler furnace pressure maintained slightly vacuum?

So that air for combustion to go in and also prevent flue gases coming into the boiler room.

fabrication of solar irrigation system

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How to choose a spring: Basics?

Machine Design says: Spring are mechanical devices that store and apply kinetic energy. Theyâ&#128;&#153;ve been around a long time and continue to play essential roles in...

fabrication of solar irrigation system

Agricultural irrigation requires a high HP pump, which implies large solar PV panels. The smallest usable one may need 25 sq meter panel area plus associated...

Light but tight foam for rocket?

It would. However, with less efficiency. The pressure developed inside would depend on the fuel, its burning rate, and the volume of products of combustion. If...

Mini Project Ideas For Mechanical Engineering - 2023

Peddling? Peddling refers to selling drugs or illegal or stolen goods.Or you want info on pedal operated washing machines? #-Link-Snipped-# posted a video on CE about...

Sustainable development project for student

#-Link-Snipped-#

Light but tight foam for rocket?

Maybe you can try making one from clay and bake it. Make a two cm cylinder block that fits the bottom of the SS tube. The...

Light but tight foam for rocket?

We used a much smaller diameter convergent divergent exit nozzle to develop thrust. The drawing shows a full open exit. It may not generate much thrust.It...

Light but tight foam for rocket?

Way back in the 1950s we used to make firework rockets with charcoal powder and sodium nitrate. Later in the sixties I tried my hand with...

Light but tight foam for rocket?

Is this a solid fuel rocket? What is the material for the fuel container? What is the time of combustion? Is it for single use or...

Suggetions for a mini energetic project ideas...

While kites for energy is a promising concept. it is a bit away from becoming a commercial proposition.  It cannot be an individual's project as...

Can I create a totally new desktop?

VR monitors for desktops are already available. Logitech has come far with its VR keyboard.So make a VR desktop.Maybe we can do virtual work as well.

Model predictive control of electrical drives.

In the kitchen domestic mixies are used for materials spanning a huge difference in properties such as coconut pieces, ginger, red chillies, gooey things like soaked...

What to do after m-tech for job

Why did you do an MTech in the first place? You would have specialised in some aspect of Civil Engineering with a view to do some...

Video Courses Or Text - Based Courses : What's Better?

Text reading involves multiple senses. So will stick better. Quite often one skips something so retraces instantly in a text. Impossible in a video. The visual...

Notice Period : 30 days or 90 days - What's better?

It is a case of horses for courses.I have only been in academic jobs. The work just goes on. In my case, I always told the...

Techno-astrology: Will these 5 Predictions of Tech Disruptions in the Next Decade happen?

Design News says:The year 2019 is here, which puts us one step closer to the next decade, one that will be amazingly disruptive in terms of...

Which are the best tools for CAD, CAM, simulation, PCB layout, and coding to make your busy, overworked life just a little easier?

Design News says:Being an engineer is as demanding as it is exciting and rewarding. A widening #-Link-Snipped-# for engineers of all types in the United States...