Are Fixed-speed Motor Drives Obsolete?

Motor drive upgrades are an easy way to boost plant performance. Given the energy-saving, efficiency-first environment of today's production line, will advanced motor controls eventually displace most conventional fixed-speed motor drives? Put another way: If your ultimate goal is to bring product t

Do Engineers Make Good Entrepreneurs?

Time was, the word "entrepreneur" was rarely heard in engineering classrooms. Nowadays, engineering schools offer classes on entrepreneurship. This begs the question, "Do engineers make good entrepreneurs?" Are the classes now being offered going to turn out a whole new class of engineers that are g

Inability To Post Graphic Images On This Forum

Are others having the same trouble I am, in attempting to post graphic images to threads on this forum using the green camera insert/edit image icon ?

I have posted images numerous times before, but as of today, most of the inset/edit image dialogue box disappears below the bottom of the browser sc

Flat belts versus Vee belts

Engineers! AC 3 phase induction motor 55kw 400v, 1450 rpm 50 hz, driving centrifugal supply fan rpm 900 (speed reduced through V-belt drive).Is it advisable in term of energy saving to replace the existing V-belts drive with flat belts.And as the V-belt has better torque transfer than flat belt will

Honeywell Paperless Recorder(v6 minitrend)

got a minitrend paperless recorder. the normall booting sequence when powered-up will perform scanning on the ff:

System Integrity Checks - indicates healthy

Running Database Integrity Checks - indicates healthy

but when on the next checking sequence on Creating File of 1024, the scanning stuck-u

Blinkies

Hi all,

Why do CCTV cameras with IR capability have an occasional tendency to "blink" a lot when the IR led's go on? They are fine during the day but indoor or outdoor, when the IR's kick in....

This does not happen with all cameras but when it does, "curing" it seems impossible. Any ideas?

Thank

Magma Tidal Effectts?

Is there some truth in that Chinese Professor's story about the position of the sun and moon relative to earthquakes? ChristChurch again? Or, is it just the Pacific Ring of Fire?

Does solar radiation have some effect on the magnetism of earth's magma core (lots of iron), and cause some tidal eff

Is Nitrogen Clean gas

Can we consider Nitrogen gas a clean gas and friendly for the envirnment and health if it used as a fire extiguisher at occupied buildings, computer rooms, subtations in oil and gas facilities? and why? any specific example or standard for direct referance?

Tariffs: Burden or Benefit?

Some magnesium fabricators are roiling at tariffs to prevent dumping of the material on the U.S. market. Others say the impact is minimal if you use "more intelligent" processes that consume less raw material. Which is it (and why)?

The preceding article is a "sneak peek" from Metals & Alloys, a ne

Cybersecurity Pros Hard to Find

Cybersecurity is one area that didn't make the list for potential government budget cuts — because it's high priority. In fact, the U.S. government can't find enough security pros with government security clearances because most work in the private sector. The issue of not enough qualified per

Is Nuclear Power Getting an Unfair Black Eye?

Decades after the Chernobyl disaster, nuclear power seemed to be on the verge of finally shedding its negative public image and being embraced as a cleaner energy alternative to fossil-based energy. Then the Japanese earthquake and tsunami happened, and experts are predicting a shift away from nucle

Video: Lower a Mustang and Install LEDs

In this episode, Chris Duke from Motorz TV shows you how to lower a Ford Mustang GT with coilovers, and how to install LED lights on both a Toyota Tundra and a Chevy 1500. Although Chris has lowered a Mustang on the show before, this episode features an Eibach kit for an adjustable ride height,

Lights Out for South Africa?

"The threat of power supply interruptions is never far from the public imagination," complains Business Day, a daily newspaper from Johannesburg, South Africa, "while the poor state of the distribution sector goes unnoticed." But is South Africa's power distribution industry really a "ticking ti