Results 171 to 180 of about 732,060 (403)

A review of current knowledge concerning PM 2. 5 chemical composition, aerosol optical properties and their relationships across China

open access: yes, 2017
. To obtain a thorough knowledge of PM2. 5 chemical composition and its impact on aerosol optical properties across China, existing field studies conducted after the year 2000 are reviewed and summarized in terms of geographical, interannual and seasonal
J. Tao   +3 more
semanticscholar   +1 more source

Global Estimates of Ambient Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth: Development and Application

open access: yesEnvironmental Health Perspectives, 2010
Background Epidemiologic and health impact studies of fine particulate matter with diameter < 2.5 μm (PM2.5) are limited by the lack of monitoring data, especially in developing countries.
A. van Donkelaar   +6 more
semanticscholar   +1 more source

Multistep Fabrication of OECTs via Direct Ink Writing, With Performance Analysis Based on a Novel Measurement Protocol

open access: yesAdvanced Electronic Materials, EarlyView.
In this work, organic electrochemical transistors are fabricated using direct ink writing (DIW). These devices are characterized and benchmarked against devices fabricated using spin‐coating and drop‐casting deposition approaches. In addition, a testing protocol is designed to systematically evaluate the operational degradation of the semiconductor ...
Amir Mohammad Ghafari   +6 more
wiley   +1 more source

Recent insights in corrosion science from atomic spectroelectrochemistry

open access: yesElectrochemical Science Advances, Volume 2, Issue 6, December 2022., 2022
Abstract A fundamental understanding of corrosion mechanisms is the key to developing suitable corrosion protection approaches, and for the prediction of service life of metallic structures. However, conventional corrosion testing methods such as mass loss and electrochemical testing do not guarantee estimation of "true" corrosion rate and often mask ...
Sanjay Choudhary   +4 more
wiley   +1 more source

Pressure‐Driven Reactivity in Dense Methane‐Nitrogen Mixtures

open access: yesAngewandte Chemie, EarlyView.
CH4 and N2 are abundant molecules in our solar system and are the primary constituents of Titan's atmosphere. Under extreme pressures and temperatures within a diamond anvil cell, CH4 and N2 are demonstrated to react to form a range of compounds, dependent on the conditions and initial concentrations.
Hannah A. Shuttleworth   +13 more
wiley   +2 more sources

Aerosol Data Sources and Their Roles within PARAGON [PDF]

open access: yes, 2004
We briefly but systematically review major sources of aerosol data, emphasizing suites of measurements that seem most likely to contribute to assessments of global aerosol climate forcing. The strengths and limitations of existing satellite, surface, and
Ackerman, Thomas P.   +9 more
core   +1 more source

Wireless Technologies for Wearable Electronics: A Review

open access: yesAdvanced Electronic Materials, EarlyView.
This review discusses recent advancements in wireless wearable electronics, focusing on communication technologies and power solutions. It covers key design considerations, explores wireless protocols from short‐ to long‐range networks, and examines powering methods such as integrated sources and energy harvesting.
Choong Yeon Kim   +8 more
wiley   +1 more source

Occupational Exposure to Airborne Bacteria During Handling Refuse-Derived Fuel from Municipal Solid Waste Used for Clinker Burning

open access: yesAerosol and Air Quality Research
Introduction Cement plants use refuse-derived fuel (RDF) as an important energy source in cement production. Objective The aim of the study was to characterize bacterial contamination of RDF and air at workplaces related to their combustion process ...
Marcin Cyprowski   +4 more
doaj   +1 more source

Comparative Evaluation of HFC‐134a Decompositions Over Metal‐Impregnated γ‐Al2O3 Catalysts (M/γ‐Al2O3) (M = Mg, Ni, Co, Zn, Cu)

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study examines the impact of an impregnated metalon the structural alterations of the catalyst induced by intermediatesgenerated during the HFC‐134a catalytic decomposition reaction. Through adetailed analysis of the catalyst before and after the reaction, the underlyingcause of the observed inactivity is elucidated.
Myeong‐Heon Yoo   +8 more
wiley   +1 more source

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