Results 111 to 120 of about 605,555 (344)

Observation Impact Assessment on the Prediction of the Earth System Dynamics Using the Adjoint-Based Method

open access: yesТруды СПИИРАН, 2018
Mathematical models of the Earth system and its components represent one of the most powerful and effective instruments applied to explore the Earth system's behaviour in the past and present, and to predict its future state considering external ...
Peter Steinle   +2 more
doaj   +1 more source

Nonlinear Impacts of Surface Exchange Coefficient Uncertainty on Tropical Cyclone Intensity and Air‐Sea Interactions

open access: yesGeophysical Research Letters, 2020
Tropical cyclone maximum intensity is believed to result from a balance between the surface friction, which removes energy, and a temperature/moisture (enthalpy) difference between the sea surface and the air above it, which adds energy.
Robert G. Nystrom   +3 more
doaj   +1 more source

Data assimilation in transport models

open access: yesApplied Mathematical Modelling, 1997
Two assimilation methods -- Kalman filtering and Kriging approach -- are suggested for the dynamic estimation of air pollution. The main advantages and disadvantages of both methods are indicated and discussed. Their properties are compared for a number of artificial experiments.
X.F. Zhang   +2 more
openaire   +2 more sources

Graphitized Biochar Derived from Agricultural Wastes Enhances Methanogenesis via Conductivity‐Driven Direct Interspecies Electron Transfer

open access: yesAdvanced Science, EarlyView.
This work clarifies how feedstocks and their structural features promote methanogenesis, and identifies the key regulatory factors, reducing pollution to the global environment, and also helps to alleviate the energy crisis. This is the first study to systematically link feedstock lignin content, pyrolysis conditions, biochar graphitization, and DIET ...
Caiyun Yang   +18 more
wiley   +1 more source

Suppressing Glycerol‐3‐phosphate Phosphatase and Enhancing Glycerol‐3‐Phosphate Shuttle Flux Crucial for High‐Efficiency Fatty Acid Production in the Fast‐Growing Oleaginous Schizochytrium

open access: yesAdvanced Science, EarlyView.
This study establishes an efficient oleaginous heterotrophic microalga, Schizochytrium, through chassis optimization and metabolic engineering, significantly enhancing fatty acid titers and productivities. It also identifies a regulatory mechanism that coordinates biomass and lipid synthesis, providing a rational target for metabolic pathway rewiring ...
Fangzhong Wang   +7 more
wiley   +1 more source

Balancing Cell Growth and Product Synthesis for Efficient Microbial Cell Factories

open access: yesAdvanced Science, EarlyView.
This review presents state‐of‐the‐art metabolic engineering strategies to balance microbial cell growth and product synthesis in biorefineries. It surveys pathway engineering, dynamic genetic circuits, orthogonal control systems, synthetic microbial consortia, and fermentation optimization, alongside integrative modeling approaches.
Linxia Liu   +5 more
wiley   +1 more source

Investigate the impacts of assimilating satellite rainfall estimates on rainstorm forecast over southwest United States [PDF]

open access: yes, 2004
Using the MM5-4DVAR system, a monsoon rainstorm case over southern Arizona (5-6 August 2002) was investigated for the influence of assimilating satellite rainfall estimates on precipitation forecasts.
Gao, X, Sorooshian, S, Xiao, Q, Xu, J
core   +1 more source

An Engineered Probiotic Consortium Based on Quorum‐Sensing for Colorectal Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
This work develops an engineered probiotic consortium sensing pH, hypoxia, and lactate in the tumor microenvironment. It releases a lactate‐depleting enzyme (LdhA) and a PD‐L1 nanobody. In humanized mouse models (MC38 and HT‐29 tumors), it achieves durable oscillations, suppresses tumors, activates CD8+, CD4+, IFN‐γ+ T cells, and reduces Foxp3 ...
Yufei Guo   +11 more
wiley   +1 more source

Data Assimilation: A Mathematical Introduction [PDF]

open access: yes, 2015
These notes provide a systematic mathematical treatment of the subject of data ...
Law, K. J. H.   +2 more
core  

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