Results 171 to 180 of about 165,231 (345)

Micro/nanorobots for detecting and eliminating biological and chemical warfare agents

open access: yesBMEMat, EarlyView.
Fuel‐powered and field‐driven micro/nanorobots provide a cutting‐edge platform to safeguard national security and defense. This review reports the latest research progress in micro/nanorobots in sensing and detoxifying biological and chemical warfare agents.
Song Li   +4 more
wiley   +1 more source

Generalized covariant entropy bound in Einstein gravity with quadratic curvature corrections

open access: yesJournal of High Energy Physics
We explore the generalized covariant entropy bound in the theory where Einstein gravity is perturbed by quadratic curvature terms, which can be viewed as the first-order quantum correction to Einstein gravity.
Hu Zhu, Jie Jiang
doaj   +1 more source

Geometrical quantum time in the U(1)3 model of Euclidean quantum gravity

open access: yesCommunications in Theoretical Physics
Abstract Loop quantum gravity faces challenges in constructing a well-defined Hamiltonian constraint and understanding the quantum notion of time. In this paper these issues are studied by quantizing the U(1)3 model, a simplified system exhibiting features similar to general relativity.
Sepideh Bakhoda, Yongge Ma
openaire   +3 more sources

Intelligent Manufacturing, Industrial Agglomeration, and Green and Low‐Carbon Development: A Nonlinear Path Test Based on the Theory of Ecological Modernization

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Drawing upon ecological modernization theory as the analytical framework, this study employs macro‐level longitudinal tracking data covering China's major regions as research samples. It measures the green and low‐carbon development (GLCD) of manufacturing from the four dimensions—“carbon reduction, pollution mitigation, ecological expansion ...
Deng Wang   +4 more
wiley   +1 more source

Form factors, spectral and Källén-Lehmann representation in nonlocal quantum gravity

open access: yesJournal of High Energy Physics
We discuss the conical region of convergence of exponential and asymptotically polynomial form factors and their integral representations. Then, we calculate the spectral representation of the propagator of nonlocal theories with entire form factors, in ...
Fabio Briscese   +3 more
doaj   +1 more source

Recent Strategies Toward Durable and Ion‐Tolerant Transition Metal‐Based Electrocatalysts in Seawater Electrolysis

open access: yesCarbon Energy, EarlyView.
Recent strategies address these challenges through ion‐specific regulation, encompassing chloride‐tolerant and chloride‐regulating anodes together with cathode designs that suppress OH− accumulation and Mg2+/Ca2+ coupling. This ion‐management‐oriented framework provides general guidelines for achieving stable, selective, and scalable seawater ...
Lina Li   +5 more
wiley   +1 more source

Unveiling S‐Scheme Bi2WO6@Black‐TiO2 Heterostructure for Superior Photoelectrocatalytic Water Remediation

open access: yesCleanMat, EarlyView.
Bi2WO6@Black‐TiO2 hierarchical heterogeneous architectures are prepared via a simple hydrothermal/solvothermal strategy. An S‐Scheme carrier transfer mechanism with a solid ability to induce long‐lived electrons and holes with strong redox properties was identified via in situ x‐ray photoelectron spectroscopy and time‐resolved photoluminescence ...
Linhan Jian   +4 more
wiley   +1 more source

A path integral formula of quantum gravity emergent from entangled local structures

open access: yesJournal of High Energy Physics
We couple to group field theory (GFT) a scalar field that encodes the entanglement between manifold sites. The scalar field provides a relational clock that enables the derivation of the Hamiltonian of the system from the GFT action.
Jinglong Liu   +3 more
doaj   +1 more source

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