Results 51 to 60 of about 68,058 (263)

Design of a Cobalt‐Free Maraging Steel with Ultra‐High Strength of 2.3 GPa Through Additive Manufacturing

Advanced Science, EarlyView.
A computationally designed, cobalt‐free maraging steel tailored for additive manufacturing achieves an ultra‐high tensile strength of 2.3 GPa with 5.7% elongation. This exceptional strength‐ductility synergy stems from high‐density core‐shell Ni3Ti/NiAl nanoprecipitates, a crack‐resistant composition, and a fine equiaxed grain structure enabled by ...
Hu Li, Shubo Gao, Liming Tan, Weiming Ji, Liuliu Han, Kun Zhou, Yong Liu   +6 more
wiley   +1 more source

The Southern Ocean carbon sink has been overestimated in the past three decades

Communications Earth & Environment
Employing machine learning methods for mapping surface ocean pCO2 has reduced the uncertainty in estimating sea-air CO2 flux. However, a general discrepancy exists between the Southern Ocean carbon sinks derived from pCO2 products and those from ...
Guorong Zhong, Xuegang Li, Jinming Song, Fan Wang, Baoxiao Qu, Yanjun Wang, Bin Zhang, Jun Ma, Huamao Yuan, Liqin Duan, Qidong Wang, Jianwei Xing, Jiajia Dai   +12 more
doaj   +1 more source

Climatic modulation of surface acidification rates through summertime wind forcing in the Southern Ocean

Nature Communications, 2018
The Southern Annular Mode is a dominant climate variability mode in the Southern Ocean. Using observational data, the authors show a strong climatic modulation of ocean acidification via Southern Annular Mode -related winds.
Liang Xue, Wei-Jun Cai, Taro Takahashi, Libao Gao, Rik Wanninkhof, Meng Wei, Kuiping Li, Lin Feng, Weidong Yu   +8 more
doaj   +1 more source

New records of Morid fishes (Teleostei: Gadiformes) from the southermost tip of South America

Scientia Marina, 1999
Three species of morid fishes were collected during the Expedition Antarktis XIII/4 of RV "Polarstern" at the southernmost tip of South America, on the slope east of Isla Nueva, Southern Chile (ca.
Roberto Meléndez, Germán Pequeño
doaj   +1 more source

Fueling export production: nutrient return pathways from the deep ocean and their dependence on the Meridional Overturning Circulation [PDF]

Biogeosciences, 2010
In the Southern Ocean, mixing and upwelling in the presence of heat and freshwater surface fluxes transform subpycnocline water to lighter densities as part of the upward branch of the Meridional Overturning Circulation (MOC).
J. B. Palter, J. L. Sarmiento, A. Gnanadesikan, J. Simeon, R. D. Slater   +4 more
doaj   +1 more source

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

Advanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das, Ushasi Pramanik, Elise M. Brown, Chih‐Yun Liu, Huan Gong, Jonathan Fascetti, Mark Gibson, Samuel Stealey, Silviya P. Zustiak, Cory Berkland, Piyoosh Sharma, Meredith E. Jackrel, Mark A. White, Jai S. Rudra   +13 more
wiley   +1 more source

Quantifying the land‐use change due to soybean‐based biodiesel in the United States

Applied Economic Perspectives and Policy, EarlyView.
Abstract We quantify the impact of soybean oil‐based biodiesel production on US cropland, using a method that accounts for the intermediate effect of soybean crushing facilities. Based on U.S. Environmental Protection Agency data for biodiesel production and proprietary data for soybean crushing facilities over 2011–2020, we find that the elasticities ...
Ruiqing Miao, Yijia Li, Madhu Khanna, Christopher Clark, Dallas Burkholder, Luoye Chen   +5 more
wiley   +1 more source

Southern Ocean Warming

Oceanography, 2018
The Southern Ocean plays a fundamental role in global climate. With no continental barriers, it distributes climate signals among the Pacific, Atlantic, and Indian Oceans through its fast-flowing, energetic, and deep-reaching dominant current, the ...
Jean-Baptiste Sallée
doaj   +1 more source

Role of zooplankton dynamics for Southern Ocean phytoplankton biomass and global biogeochemical cycles [PDF]

Biogeosciences, 2016
Global ocean biogeochemistry models currently employed in climate change projections use highly simplified representations of pelagic food webs. These food webs do not necessarily include critical pathways by which ecosystems interact with ocean ...
C. Le Quéré, E. T. Buitenhuis, R. Moriarty, S. Alvain, O. Aumont, L. Bopp, S. Chollet, C. Enright, D. J. Franklin, R. J. Geider, S. P. Harrison, A. G. Hirst, S. Larsen, L. Legendre, T. Platt, I. C. Prentice, R. B. Rivkin, S. Sailley, S. Sathyendranath, N. Stephens, M. Vogt, S. M. Vallina   +21 more
doaj   +1 more source

Do Consumers Value Diversity in Agriculture? A Choice Experiment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Farm ownership in the US today is racially and ethnically homogeneous. Diverse farmers and ranchers make up less than 10% of all producers, they tend to be less financially stable and have tighter profit margins. In the past few years, both government and industry programs have aimed to increase the participation and profitability of diverse ...
Maria Kalaitzandonakes, Jared P. Hutchins, Gerald Mashange   +2 more
wiley   +1 more source