Results 131 to 140 of about 231,352 (303)

Multifunctional Metasurfaces for Bridging Terahertz Waves in Free Space and Waveguides

open access: yesAdvanced Physics Research, EarlyView.
A multifunctional terahertz metasurface capable of simultaneous orthogonal polarization conversion and phase modulation is integrated onto a dielectric slab waveguide, thereby enabling efficient free‐space‐to‐guided‐wave coupling. By implementing tailored phase gradients on the metasurface, we demonstrate the formation of a focused spot within the ...
Jinhui Lu   +5 more
wiley   +1 more source

Satellite Power System (SPS) financial/management scenarios [PDF]

open access: yes
The possible benefits of a Satellite Power System (SPS) program, both domestically and internationally, justify detailed and imaginative investigation of the issues involved in financing and managing such a large-scale program.
Vajk, J. P.
core   +1 more source

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

open access: yesBMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao   +4 more
wiley   +1 more source

The Role of Corporate Governance in Enhancing Environmental and Social Performance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how different corporate governance (CG) approaches influence firms' environmental and social performance, specifically focusing on the role of internal vs. external resources and operational vs. strategic approaches. Anchored in stakeholder and resource dependency theory, we develop a conceptual framework grounded in ...
Tommaso Fornasari   +2 more
wiley   +1 more source

Microstructure and finite element analysis of Mo2C-diamond/Cu composites by spark plasma sintering

open access: yesScience and Engineering of Composite Materials
Mo2C layer was generated on the diamond surface via vacuum micro-evaporating, which was used as the reinforcement particles to fabricate diamond/Cu composites by spark plasma sintering (SPS).
Wang Changrui   +3 more
doaj   +1 more source

ESG Performance, Debt Financing, and R&D Output: Evidence From the Healthcare Sector

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Amid growing calls for sustainability in the healthcare sector, this study examines how and under what conditions environmental, social, and governance (ESG) performance influences research and development (R&D) output. Although existing studies suggest that ESG performance enhances R&D output, the financial mechanisms that enable or constrain
Sarmad Ali   +2 more
wiley   +1 more source

Reference System Description [PDF]

open access: yes
Several candidate antenna configurations are evaluated in terms of weight, efficiency, and structural rigidity. Particular emphasis is given to the waveguide slot array and its application to solar power satellites SPS.
Lund, W. W., Lunden, C. D., Nalos, E. J.
core   +1 more source

High Thermoelectric Performance Achieved by Manipulating the Band Structure and Lattice Dislocations in n‐Type Ge/Pb/Br Codoped Polycrystalline SnSe

open access: yesCarbon Energy, EarlyView.
Pb/Ge/Br codoping in n‐type polycrystalline SnSe induces band convergence and high‐density dislocations, yielding a high power factor of 7.47 μW cm−1 K−2 and ultralow lattice thermal conductivity. Consequently, a peak ZT of 1.6 is achieved, overcoming the traditional performance limitations of n‐type SnSe.
Pubao Peng   +7 more
wiley   +1 more source

Dynamic Reactivity: Reversible Reaction of a Phosphinine–Borane Adduct With Water and Double Hydrophosphination

open access: yesChemistry – A European Journal, EarlyView.
A phosphinine–borane Lewis pair shows a dynamic mode of water addition, revealing reversible and regioselective transformations that expand the reactivity of aromatic phosphorus heterocycles and open pathways to stimuli‐responsive systems for catalysis, small‐molecule activation, and functional materials.
Samantha Frank   +7 more
wiley   +1 more source

Apollo 16 mission report. Supplement 2: Service Propulsion system final flight evaluation [PDF]

open access: yes
The Apollo 16 Mission was the sixteenth in a series of flights using Apollo flight hardware and included the fifth lunar landing of the Apollo Program.
Smith, R. J., Wood, S. C.
core   +1 more source

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