Title
NoiseReduction Manual,Used
Delivery time: 8-12 business days (International)
The NoiseReduction Manual was prepared under the auspices of the U.S. Office of Naval Research and was originally intended to constitute the introductory sections of a more extensive study of noisereduction problems encountered aboard ship. There is a sustained emphasis on the practical techniques for the reduction of airborne noise, the treatment of each problem tacitly deprecating the need for, and even the practical value of, mathematical investigation of noise sources and noise fields as compared to the greater importance of careful acoustical measurements designed to direct the proper use of acoustical materials and relatively simple noisereduction techniques. Careful distinction is made between the various techniques of noise reduction at the source and the various methods of noise and vibration isolation and dissipation, greatest emphasis being devoted to the latter. After basic definitions and analysis of several causes of noise, entire chapters are devoted to absorption of airborne sound, insulation against airborne sound, vibration damping, and vibration isolation. Each chapter contains extensive discussions of the evaluation and application of the various types of acoustical materials, including selection rules, performance data, and instrumentation. The straightforward exposition should make the manual equally valuable to both the novice and expert in the field of noise reduction.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.