Results 121 to 130 of about 642,269 (278)

Quercetin‐zinc coordination polymer coated CaCO3 nanoparticles potentiate radiotherapy through reprogramming tumor immunosuppression

open access: yesBMEMat, EarlyView.
Synthesis of QZCaCO3‐PEG to synergistically enhance the immunogenicity of radiotherapy through concurrent Zn2+‐induced cancer cell pyroptosis and Que‐mediated hypoxia amelioration through sequentially suppressing TGF‐β secretion and ECM deposition. Abstract Radiotherapy has demonstrated broad applications in treating solid tumors, but the hostile tumor
Chunjie Wang   +9 more
wiley   +1 more source

Domestic electronic ignition on spark ignition engines

open access: yes, 1998
Se presenta la modificación del sistema de encendido convencional por ruptor, adaptado y construido a partir de los sistemas de encendido inductivo Bosch y Delco Remy; obteniéndose el sistema de encendido electrónico. Las pruebas experimentales se efectuaron en el motor Ford de cuatro cilindros ubicado en la Universidad Nacional de Ingeniería ...
Valderrama Romero, Andrés   +1 more
openaire   +1 more source

Experiment on the Rate of Blow-by in a Spark Ignition Engine

open access: yesJournal of the Society of Mechanical Engineers, 1959
The phenomenon of blow-by in internal combustion engines has an important effect upon engine performance, the lubrication of cylinder wall, the oxidation of engine oil, and the bearing temperature, causing deterioration in the durability of the engine.
openaire   +3 more sources

Pathways to Carbon Neutrality: The Role of Environmental Governance, Environmental Technology, Renewable Energy Transition, and Economic Policy Uncertainty in Africa

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT As climate change and environmental deterioration continue to escalate due to substantial CO2 emissions, nations worldwide are implementing approaches to alleviate CO2 emissions and accomplish carbon neutrality (CNE) goals. The current study examined CNE objectives for five selected nations in Africa, spanning from 1990 to 2022.
John Wiredu   +4 more
wiley   +1 more source

Decoding the Circular Economy Job Market in the EU: A Quantitative and Comparative Analysis

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The circular economy (CE) is increasingly promoted as a pathway to sustainable development, yet systematic evidence on the structure of the CE labor market remains limited. Little is known about how CE‐related job opportunities are distributed across countries, which job characteristics dominate this market, and how such patterns compare with ...
Pavlos Fafalios   +2 more
wiley   +1 more source

Abnormal combustion - methanol versus gasoline [PDF]

open access: yes, 1988
Includes bibliographical references.The maximum efficiency of conventional gasoline engines is largely determined by the compression ratio, and this is limited by the onset of kno8k. The maximum cylinder size is similarly constrained.
Yates, Andrew David Bennett
core  

Circular Economy in Food Supply Chains: Comprehending the Paradigm and Redefining Future Research Through a Multidisciplinary Review of Reviews

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The inefficiencies of the global food system necessitate a shift towards a circular economy (CE) in food supply chains (FSCs). While research on CE in FSCs spans multiple disciplines, it often remains siloed within respective disciplinary boundaries, limiting its practical impact.
Lovish Raheja   +2 more
wiley   +1 more source

Beyond a Technocentric Transition: A Diverse Economies Perspective for Social Justice in Circular Economy Business Models

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The circular economy, dominated by capitalocentric, technocentric, and eco‐modernist discourses, risks perpetuating systemic injustice because of its limited consideration of the social and of what is possible. In this article, we examine how social justice can be embedded into circular business models (CBMs)—key drivers of the circular ...
Fernando C. Lit   +3 more
wiley   +1 more source

Porous Ag/NiO Nanosheet Catalysts With Electronic Metal–Support Interaction for Efficient Soot Oxidation via a NOx‐Assisted Mechanism

open access: yesCarbon and Hydrogen, EarlyView.
Ag nanoparticles dispersed on porous NiO nanosheets via GBMR method deliver superior soot oxidation performance at 359°C, where Ag–NiO interaction promotes interfacial oxygen activation and NOx‐assisted mechanism, offering design principles for advanced emission control technologies.
Yaxiao Ma   +7 more
wiley   +1 more source

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