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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Heat-flux control and solid-state cooling by regulating chemical potential of photons in near-field electromagnetic heat transfer
We consider near-field heat transfer with nonzero chemical potential for photons, as can occur between two semiconductor bodies, held at different temperatures with at least one of the bodies under external bias.We show that the dependence of radiative heat flux on chemical potential enables electronic control of both the direction and magnitude of near-field heat transfer between the two bodies. Moreover such a configuration can operate as a solid-state cooling device whose efficiency can approach the Carnot limit in the ideal case. Furthermore, significant cooling can also be achieved in the presence of inherent nonidealities including Auger recombination and parasitic phonon-polariton heat transfer.
Rapidity regulators in the semi-inclusive deep inelastic scattering and Drell-Yan processes
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Phosphorylation of a NAC Transcription Factor by a Calcium/Calmodulin-Dependent Protein Kinase Regulates Abscisic Acid-Induced Antioxidant Defense in Maize [Phosphorylation of a NAC Transcription Factor by ZmCCaMK Regulates Abscisic Acid-Induced Antioxidant Defense in Maize]
Calcium/calmodulin-dependent protein kinase (CCaMK) has been shown to play an important role in abscisic acid (ABA)-induced antioxidant defense and enhance the tolerance of plants to drought stress. However, its downstream molecular events are poorly understood. Here, we identify a NAC transcription factor, ZmNAC84, in maize, which physically interacts with ZmCCaMK in vitro and in vivo. ZmNAC84 display a partially overlapping expression pattern with ZmCCaMK after ABA treatment and H 2 O 2 is required for ABA-induced ZmNAC84 expression. Functional analysis reveals that ZmNAC84 is essential for ABA-induced antioxidant defense in a ZmCCaMK-dependent manner. Furthermore, ZmCCaMK directly phosphorylates S113 of ZmNAC84 in vitro, and S113 is essential for the ABA-induced stimulation of antioxidant defense by ZmCCaMK. Moreover, overexpression of ZmNAC84 in tobacco can improve drought tolerance, and alleviate drought-induced oxidative damage of transgenic plants. These results define a mechanism for ZmCCaMK function in ABA-induced antioxidant defense, where ABA-produced H 2 O 2 first induces expression of ZmCCaMK and ZmNAC84 and activates ZmCCaMK, and subsequently the activated ZmCCaMK phosphorylates ZmNAC84 at S113, thereby inducing antioxidant defense by activating downstream genes.
In Silico Analysis of the Regulation of the Photosynthetic Electron Transport Chain in C3 Plants
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Environmental and Genetic Factors Regulating Localization of the Plant Plasma Membrane H + -ATPase
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Phosphatidic acid interacts with a MYB transcription factor and regulates its nuclear localization and function in Arabidopsis
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Remove, Recycle, Degrade: Regulating Plasma Membrane Protein Accumulation
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Kalanchoë PPC1 Is Essential for Crassulacean Acid Metabolism and the Regulation of Core Circadian Clock and Guard Cell Signaling Genes
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Chlamydomonas CHT7 Is Required for an Effective Quiescent State by Regulating Nutrient-Responsive Cell Cycle Gene Expression
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Impact of Communication Latencies and Availability on Droop-Implemented Primary Frequency Regulation.
Abstract not provided.
The Impact of Co-Located Clusters of Inverter-Based Resources on a Performance-Based Regulation Market Metric.
Abstract not provided.
Maximizing Revenue from Electrical Energy Storage in MISO Energy & Frequency Regulation Markets.
Abstract not provided.
Time Series Simulation of Voltage Regulation Device Controls.
Abstract not provided.
PV Ramp Rate Smoothing Using Energy Storage to Mitigate Increased Voltage Regulator Tapping.
Abstract not provided.
Substrate deformation regulates DRM2-mediated DNA methylation in plants
DRM2 induces substrate deformation to underlie its methylation preference for CHH DNA in plants.