Results 181 to 190 of about 913 (245)

Deep Reinforcement Learning-Based Routing Method for Low Earth Orbit Mega-Constellation Satellite Networks with Service Function Constraints. [PDF]

Sensors (Basel)
Chen Y, Cao H, Wang L, Chen D, Liu Z, Zhou Y, Shi J.   +6 more
europepmc   +1 more source

Dual Regulatory Functions of Classical Zinc Finger Clusters from Myeloid Zinc Finger‐1

Chemistry – A European Journal, EarlyView.
The classical zinc finger (ZF) protein MZF1 uses two ZF clusters to achieve metal‐dependent and gene‐specific promoter recognition. The differential redox stability and modular utilization of the two ZF clusters enable MZF1 to regulate cerebrovascular, neuronal, and cancer‐related transcriptional programs.
Yunha Hwang, Yerim Park, Nohwan Park, Heeju Noh, Hyun Goo Kang, Seung Jae Lee   +5 more
wiley   +1 more source

Long-Term Stability Improvements of the Miniature Atomic Clock Through Enhanced Thermal Environmental Control. [PDF]

Sensors (Basel)
Gokie E, Omaraie J, Bandi TN.
europepmc   +1 more source

Stereochemical Control in the Matteson Reaction

Chemistry – A European Journal, EarlyView.
The Matteson homologation is a highly versatile method for the stereoselective insertion of carbenoids into boronic esters. Through iterative application of the process, complex chiral molecules can be synthesized. The stereoselectivity of the reaction is determined by a chiral diol incorporated in the boronic ester.
Hae Mo Lee, Christoph Hirschhäuser
wiley   +1 more source

Adaptive Resource Optimization for LoRa-Enabled LEO Satellite IoT System in High-Dynamic Environments. [PDF]

Sensors (Basel)
Zhang C, Peng H, Ji Y, Hong T, Zhang G.
europepmc   +1 more source

Effect of Sequential and Combined Space‐Based Stressors on Perovskite Solar Cell Stability

EcoEnergy, EarlyView.
A correlation between loss in performance and mobile ion concentration has been established by sequential stressing of perovskite solar cells under Low Earth Orbit conditions with exposure to protons, light, and thermal cycling. It is shown that the loss in performance increases when ion concentration increases and vice versa.
Saivineeth Penukula, Brandon K. Durant, Megh N. Khanal, Mohin Sharma, Todd A. Byers, Vincent R. Whiteside, Haley P. Harblin, Ian R. Sellers, Bibhudutta Rout, Nicholas Rolston   +9 more
wiley   +1 more source

A Survey of Current Operations-Ready Thermospheric Density Models for Drag Modeling in LEO Operations. [PDF]

J Astronaut Sci
Mutschler S, Pilinski M, Bruinsma S, Sutton E, Tobiska WK, Knipp D, Fang TW, Casali S, Mallik V, DiLorenzo B, Siemes C.   +10 more
europepmc   +1 more source

Dynamic Active Site Mechanism and Compositional Tuning in LaxSr1−xCoyFe1−yO3 (LSCF) Perovskites Toward Efficient Oxygen Evolution

EcoEnergy, EarlyView.
A dynamic active site mechanism through cooperative metal–lattice oxygen interactions enables efficient oxygen evolution in LSCF perovskites without relying on oxygen vacancy formation, where the La/Sr ratio governs the intrinsic activity of LSCF and Co incorporation provides secondary enhancement, establishing a general composition‐guided paradigm for
Seong Chan Cho, Hajin Lee, Jun Ho Seok, Jae Hun Seol, Hung Ngo Manh, Chi Ho Lee, Sang Uck Lee   +6 more
wiley   +1 more source

A Distributed Space Target Constellation Task Planning Method Based on Adaptive Genetic Algorithm. [PDF]

Sensors (Basel)
Hu Q, Guo J, Liu D.
europepmc   +1 more source

Lattice and Surface Engineering of Transition Metal Oxide Photoanodes for Efficient Photoelectrochemical Water Splitting

EcoEnergy, EarlyView.
This review highlights phase control, facet control, and atomic vacancy engineering as key strategies to enhance charge transport, light harvesting, and surface activity in PEC photoanodes. ABSTRACT Photoelectrochemical (PEC) water splitting is a promising approach for converting solar energy into hydrogen, yet the performance of transition metal oxide
Seonmi Ko, Jehoon Lee, Tae Sung Kim, Taeuk Park, Hyo Jin Park, Junyeob Yeo   +5 more
wiley   +1 more source