Results 31 to 40 of about 306,602 (306)

Atmospheric Acetaldehyde: Importance of Air-Sea Exchange and a Missing Source in the Remote Troposphere. [PDF]

, 2019
We report airborne measurements of acetaldehyde (CH3CHO) during the first and second deployments of the National Aeronautics and Space Administration (NASA) Atmospheric Tomography Mission (ATom).
Alan Hills, Andrew Conley, Apel E. C., Apel E. C., Barbara Barletta, Benjamin A. Nault, Bernadett Weinzierl, Brad Hall, Bruce Daube, Chelsea R. Thompson, Daniel D. Riemer, David Nance, David Tanner, Donald R. Blake, Eric C. Apel, Eric Ray, Francis Vitt, Frank M. Flocke, Fred Moore, Geoff S. Tyndall, Glenn M. Wolfe, Hannah Allen, James Elkins, Jason St. Clair, Jean‐François Lamarque, Jeff Peischl, John D. Crounse, John J. Orlando, Jose L. Jimenez, Kirk Ullmann, L. Gregory Huey, Louisa K. Emmons, Maximilian Dollner, Michelle Kim, Paul O. Wennberg, Pedro Campuzano‐Jost, Rebecca S. Hornbrook, Róisín Commane, Samuel R. Hall, Seinfeld J. H., Simone Tilmes, Siyuan Wang, Steven C. Wofsy, Thomas B. Ryerson, Thomas F. Hanisco, Wofsy S. C.   +45 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

GRACE gravity solutions validated by in-situ ocean bottom pressure in different regions of the global ocean [PDF]

, 2009
The GRACE satellite mission provides gravity field estimates of the Earth with unprecedented accuracy. Nevertheless,the realistic detection of oceanic mass redistribution remains challenging due to comparatively small signalamplitude, aliasing by tides ...
Boebel, Olaf, Böning, Carmen, Macrander, Annecke, Schröter, Jens   +3 more
core  

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Geometry and seismic properties of the subducting Cocos plate in central Mexico [PDF]

, 2010
The geometry and properties of the interface of the Cocos plate beneath central Mexico are determined from the receiver functions (RFs) utilizing data from the Meso America Subduction Experiment (MASE).
Clayton, R. W., Jackson, J. M., Kim, Y.
core   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

The Possible Explanation for Secondary Microseisms Seasonal and Annual Variations

Terrestrial, Atmospheric and Oceanic Sciences, 2015
Annual drift is typical for microseisms. We propose a model based on thermoelastic wave generation that explains the highest microseisms during winter using higher stress level at the same time. If we remove the average influence of the background stress
Pavel Kalenda, Ivo Wandrol, Karel Holub, and Jana Rušajová   +3 more
doaj   +1 more source

Homogenous FACsPbI3 Perovskite Solar Cells Enabled by a Seed‐Facilitated Cation Exchange Strategy

Advanced Functional Materials, EarlyView.
A novel seed‐facilitated cation exchange strategy is designed for homogenous FACsPbI3 perovskites using the biomass‐derived solvent γ‐valerolactone. Pre‐deposited 0D Cs4PbI6 seeds induce rapid nucleation and efficient cation exchange, producing a uniform FA–Cs distribution and significantly reducing defect density, enabling high‐performance and stable ...
Meng Ren, Guodong Chen, Haifei Wang, Bowei Li, Yuetian Chen, Jiahao Guo, Yingping Fan, Shaowei Wang, Yanfeng Miao, Feng Gao, Yixin Zhao   +10 more
wiley   +1 more source

Relationships between Organic Material and Thermal Maturity Derived from Coal and C-Shale Samples

Terrestrial, Atmospheric and Oceanic Sciences, 2008
The purpose of this study is to characterize the relationship between organic material and thermal maturity during the process of evaluation of hydrocarbon potential. Samples studied include Miocene high volatile bituminous coal and coaly shale collected
Louis L. Tsai, Huey-Jane Hsieh, Hsien-Tsung Lee, and Li-Chung Sun   +3 more
doaj   +1 more source

The ocean carbon sink – impacts, vulnerabilities and challenges [PDF]

, 2014
Carbon dioxide (CO2) is, next to water vapour, considered to be the most important natural greenhouse gas on Earth. Rapidly rising atmospheric CO2 concentrations caused by human actions such as fossil fuel burning, land-use change or cement production ...
Anderson, Leif, Bakker, Dorothee C. E., Chang, N, Goris, Nadine, Heinze, Christoph, Le Quere, Corinne, Meyer, Stefanie, Steinfeldt, Reiner   +7 more
core   +3 more sources