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Description
An Introduction to Mechanical VibrationsCondition: BRAND NEW ISBN: 9780471845454 Year: 1989 Publisher: John Wiley & Sons Inc (US) Pages: 464 Description: This Third Edition of the well received engineering text retains the clarity of exposition that made the previous editions so popular, and contains the most widely used problem sets in the business. Approach to vibration analysis is clear, concise, and simple, backed up by a wealth of problems and examples. Multi degree of freedom problems
Condition: BRAND NEWISBN: 9780471845454
Year: 1989
Publisher: John Wiley & Sons Inc (US)
Pages: 464
Description:
This Third Edition of the well-received engineering text retains the clarity of exposition that made the previous editions so popular, and contains the most widely-used problem sets in the business. Approach to vibration analysis is clear, concise, and simple, backed up by a wealth of problems and examples. Multi-degree-of-freedom problems are well-prefaced with two-degree-of-freedom cases. There is a special treatment of damping, including non-viscous problems (standard texts make much use of viscous damping, but most practical examples are not viscous). Now includes an excellent development of Rayleigh's principle and an introduction to finite element vibration analysis. Contains 100 new problems.
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★★★★★ 5
BioYessssssss
Color: Caviar PDRN, Color: Caviar PDRN
I was honestly impressed after just one use of the Biodance Caviar PDRN Eye Patches. The difference in my under-eye area was noticeable almost immediately—my skin looked brighter, smoother, and more refreshed, like I had actually gotten a full night of sleep. It gave my eyes that well-rested, radiant look that usually takes multiple products to achieve.
What really sets these patches apart is how well they stay in place. Unlike so many other eye patches that constantly slide down and need readjusting, these adhere perfectly and stay put the entire time. I can go about my routine without worrying about them slipping off. Between the instant brightening effect and the secure fit, these have quickly become a standout in my skincare routine.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
These are a winner!
Color: Caviar PDRN
These are some of the best under eye masks! I have friend about 35 different ones and these are slightly textured so they do not slip as much as a lot of the other ones! They are thin and very hydrating!!
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Favorite mask brand’s great eye patch
Color: Caviar PDRN
Love this - i always loved biodance masks.
It cools down my undereye & definitely helps with eye bag. It stays on skin perfectly. I usually put this on after shower before bed and walk around do my things then remove right before sleeping - it usually thins out a little by then.
Very moisturizing for my under eyes
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Reviewed in the United States on May 28, 2026
★★★★★ 5
FYI These are worth it!
Color: Caviar PDRN, Color: Caviar PDRN
These eye patches are really nice and worth it. I use them mainly on the weekends (when I don’t wear makeup). I wash my face and apply them under my eyes (I have also used them on my neck , forehead, corners of mouth, and between the brows for extra moisture) I leave them on about 30 minutes or more, peel them off, pat in the left over product; and my under-eye area looks a lot brighter and awake! I then apply and complete the rest of my skincare routine. (Under eye serum, face serum, and moisturizer). These patches are also very pretty, they make me feel like a mystical sea creature; think mermaid! My advice is make sure you are in fact using one, they are very thin and transparent and a few times i was actually applying more than one. With that being said there are A LOT of patches in the container.
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Good product.
Color: Caviar PDRN
Good Product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
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