Results 131 to 140 of about 2,658,808 (310)

Realizing modeling and mapping tools to study the upsurge of noise pollution as a result of open-cast mining and transportation activities

open access: yesNoise and Health, 2018
Introduction: In open-cast mines, noise pollution has become a serious concern due to the extreme use of heavy earth moving machinery (HEMM). Materials and Methods: This study is focused to measure and assess the effects of the existing noise levels of ...
Satish K Lokhande   +4 more
doaj   +1 more source

Global Trade Impacts: Addressing the Health, Social and Environmental Consequences of Moving International Freight Through Our Communities [PDF]

open access: yes, 2011
Examines freight transportation industry trends; the impact of global trade on workers, the environment, and health in both exporting and importing countries; and organizing strategies and policy innovations for minimizing the damage and ensuring ...
Andrea Hricko   +3 more
core  

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Time-Frequency Analysis of Horizontal Vibration for Vehicle-Track System Based on Hilbert-Huang Transform

open access: yesAdvances in Mechanical Engineering, 2013
Relationship between track alignment irregularity and car body horizontal vibration acceleration is analyzed by using Hilbert-Huang Transform (HHT). Actual measured alignment irregularity and car body horizontal vibration acceleration are decomposed by ...
Zaiwei Li, Songliang Lian, Yuelei He
doaj   +1 more source

Long-term exposure to transportation noise and its association with adiposity markers and development of obesity

open access: yesEnvironment International, 2018
The contribution of different transportation noise sources to metabolic disorders such as obesity remains understudied. We evaluated the associations of long-term exposure to road, railway and aircraft noise with measures of obesity and its subphenotypes
Maria Foraster   +13 more
doaj   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Performance interface document for the S-band diplexer for space users of NASA networks [PDF]

open access: yes
This report discusses the test results and interfacing information of the S-band diplexer development program supported by RTOP 310 funding. The program was implemented to reduce the S-band transponder noise figure by minimizing the receive channel ...
Line, L. G.
core   +1 more source

Cyclic permutation-time symmetric structure with coupled gain-loss microcavities

open access: yes, 2015
We study the coupled even number of microcavities with the balanced gain and loss between any pair of their neighboring components. The effective non-Hermitian Hamiltonian for such structure has the cyclic permutation-time symmetry with respect to the ...
He, Bing   +3 more
core   +1 more source

Neonatal Noise Exposure and Noise Reduction During Transport

open access: yes, 2021
Inter-hospital transport of sick neonates for specialist care is often necessary, but older studies suggest it may expose them to high levels of noise that may cause distress, autonomic instability and even noise induced hearing loss (NIHL). There have been advances in transport equipment standards, but little effort to address this issue.
openaire   +2 more sources

Home - About - Disclaimer - Privacy