Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ Design of Rectangular Cross Section Helical Resonator for Noise Attenuation in Air Induction System https://trid.trb.org/View/2155833 Mon, 24 Apr 2023 16:19:14 GMT https://trid.trb.org/View/2155833 An Objective Methodology for Measuring Earmuff Hearing Protector Noise Attenuation https://trid.trb.org/View/1822315 Wed, 29 Jun 2022 13:26:10 GMT https://trid.trb.org/View/1822315 Hybrid Pseudorandom Signal Injection for Position Sensorless SynRM Drives With Acoustic Noise Reduction https://trid.trb.org/View/1933714 Fri, 24 Jun 2022 17:07:50 GMT https://trid.trb.org/View/1933714 Analysis of Vibrations and Acoustics on Riding Lawn Mower https://trid.trb.org/View/1919249 Fri, 18 Mar 2022 12:17:10 GMT https://trid.trb.org/View/1919249 Vibration Reduction in a Variable Displacement Engine Using Pendulum Absorbers https://trid.trb.org/View/1797474 Wed, 23 Feb 2022 16:16:14 GMT https://trid.trb.org/View/1797474 The Transfer Function of Combustion Noise in DI-Diesel Engine https://trid.trb.org/View/1804564 Wed, 23 Feb 2022 16:16:13 GMT https://trid.trb.org/View/1804564 Accurate Measurement of Small Absorption Coefficients https://trid.trb.org/View/1812286 Wed, 23 Feb 2022 16:16:12 GMT https://trid.trb.org/View/1812286 Application of Micro-Perforated Panels to Attenuate Noise in a Duct https://trid.trb.org/View/1812162 Wed, 23 Feb 2022 16:16:12 GMT https://trid.trb.org/View/1812162 Dynamic traffic noise maps based on noise monitoring and traffic speed data https://trid.trb.org/View/1843726 Fri, 21 May 2021 17:50:26 GMT https://trid.trb.org/View/1843726 Measurements and Simulations of Sliding Wear, Leakage and Acoustic Isolation of Engine Rubber Gaskets https://trid.trb.org/View/1738046 Fri, 20 Nov 2020 11:06:21 GMT https://trid.trb.org/View/1738046 Acoustic Characteristics Prediction and Optimization of Wheel Resonators with Arbitrary Section https://trid.trb.org/View/1701936 Thu, 21 May 2020 17:39:25 GMT https://trid.trb.org/View/1701936 Gear Tooth Modification of EV Powertrain for Vibration and Noise Reduction https://trid.trb.org/View/1561582 Tue, 11 Feb 2020 09:53:30 GMT https://trid.trb.org/View/1561582 Effects of Motor and Transmission on Noise Level of Electric Bus Powertrain Using Lead Packaging Method https://trid.trb.org/View/1561575 Tue, 11 Feb 2020 09:53:30 GMT https://trid.trb.org/View/1561575 High Altitude Performance of Loudspeakers and Potential Impact on Audiometric Findings https://trid.trb.org/View/1633481 Mon, 21 Oct 2019 09:46:22 GMT https://trid.trb.org/View/1633481 Sound field study of a building near a roadway via the boundary element method https://trid.trb.org/View/1625309 10 dB when the sound frequency increases from 20 to 4000 Hz; (4) calculations of three typical frequencies indicate that the insertion loss of 500 Hz (main frequency of heavy vehicles) is 6 dB less than that of 800 Hz (main frequency of light vehicles), i.e. the flow control of heavy vehicles could conspicuously improve the ambient acoustic environment of buildings near a roadway.]]> Fri, 26 Jul 2019 11:51:43 GMT https://trid.trb.org/View/1625309