Lawrence Kren

Lawrence
Kren
Articles
Flat Out
The annual Bonneville Speed Week is a place to find some of the most innovative engineering done anywhere, along with many of the fastest vehicles on the planet. Here is an inside look at how one team took an idea from sketches to a Salt Flats screamer.
Compression ignition comes to gas engines
What many consider the Holy Grail of combustion technology is one step closer to prime time.
Two modes are better than one for heavy-duty hybrids
After proving two-mode full hybrid technology in transit buses, GM has put a scaled– down version in its Chevy Tahoe and GMC Yukon SUVs.
Next-generation CAD configurators
Numerous manufacturers have online size and spec programs that provide design engineers with CAD files of stock products.
Treat problems as treasure
When was the last time you heard, or said, "Thank you," when a problem was brought up?
Vibes scope machine health
Short of a complete tear down, vibration analysis is one of the best ways for assessing the condition of rotating machinery.
Can regulation alone bring safer products?
Design engineering is a creative endeavor that involves some trial and error.
Avoiding the commodity mindset trap
A Midwestern manufacturer troubled by outsourcing to low-labor-cost regions flagged for me a recent article in the Wall Street Journal.
The attraction of magnetic encoders
Encoders that measure absolute position magnetically rather than optically come from Turck, Minneapolis.
More readable operator interface panel
Model G306A G3 operator interface panels from Red Lion Controls Inc., York, Pa., use a TFT active-matrix display for greater contrast, brightness, and overall readability, over a wide viewing angle.
Caring for Cables
Unprotected cables can twist, bind, and wear out fast.
Goofproofing
To err is human. Anyone may be careless, inattentive, forgetful, reckless, or exhibit behavior beyond the limits of what is expected, desirable, or acceptable.
Blue-light special
Blue XLamp XR-E LEDs from Cree Inc., Durham, N.C., are 70% brighter than the company's previous bluepower LEDs.
Layered materials improve rechargeable batteries
A positive electrode material comprised of a special nanocrystalline, layered-composite structure could boost storage capacity and stability of rechargeable lithium-ion batteries, say researchers at Argonne National Laboratory.
Going Lean alone
There is a common misconception today that the only way to adopt Lean Manufacturing techniques is to hire a consultant who leads the way.

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