Results 141 to 150 of about 44,546 (316)

Area computer model for transportation noise prediction : phase II--improved noise prediction methods. [PDF]

open access: yes
This report recommended that NOISE 3 initially use the same basic logic as the MICNOISE program for highway noise prediction except that additional options be made available, such as flexibility in specifying vehicle noise sources.
Haviland, J. K   +2 more
core  

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

Rolling noise in road and rail transportation systems

open access: yes, 2019
Long term exposure to ground transportation (road and rail traffic) noise is, after air pollution, the main environment-related health stressor in densely populated areas and compromises the quality of life and, indirectly, the life expectations of ...
Lopez Arteaga, Ines,
core  

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

General health effects of transportation noise.

open access: yes
The Federal Railroad Administration (FRA) sponsored preparation of this reportto support a rulemaking process about the use of locomotive horns and theaccompanying environmental impact statement.
Lee, Cynthia S.Y.   +2 more
core  

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

open access: yesAdvanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer   +4 more
wiley   +1 more source

Measurement of ambient noise levels in the Florida Everglades : technical note

open access: yes
OS-207/R-2519Noise data recorded in and around a 100-square mile area of southern Florida during the period 16-22 March 1971 have been analyzed in the Noise Abatement Laboratory, Transportation Systems Center, Cambridge, Massachusetts.
Quinn, Robert W.   +1 more
core  

Development of a Model of Startle Resulting from Exposure to Sonic Booms: A PARTNER Projects 8 and 24 Report [PDF]

open access: yes
07-C-NE-PU, Amendment Nos. 006, 007, 02207-C-NE-PU, Amendment Nos. 013, 02809-C-NEPU, Amendment Nos. 001, 008, 009, 014, 019As demand for long-range business travel increases and technologies for efficient supersonic flight mature, a market for small ...
Massachusetts Institute of Technology   +3 more
core  

Reconfigurable Logic‐in‐Memory Operations Enabled by Triple‐Gated Feedback Field‐Effect Transistors for Area‐Efficient Computing

open access: yesAdvanced Engineering Materials, EarlyView.
A reconfigurable logic‐in‐memory cell composed of triple‐gated feedback field‐effect transistors implements multiple combinational logic functions within a single configuration. By utilizing program gates as dynamic input terminals, the proposed cell performs full adder, full subtractor, 2‐to‐1 multiplexer, and 4‐to‐2 encoder operations without ...
Minhyeok Seol   +5 more
wiley   +1 more source

Noise Characteristics of the Transrapid TR08 Maglev System [PDF]

open access: yes
As part of the Federal Railroad Administration's (FRA) Magnetic Levitation Transportation Technology Deployment Program, this technical report has been prepared to characterize the noise associated with the operation of the Transrapid International (TRI)
Valihur, Paul   +7 more
core  

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