Results 41 to 50 of about 30,951 (136)

Adaptive transparent cloaking tunnel enabled by Meta-Reinforcement-Learning Metasurfaces

PhotoniX
Conventional electromagnetic cloaking paradigms predominantly necessitate the encasing of static objects within predefined topological enclosures, fundamentally restricting invisibility to fixed, closed geometries. Realizing dynamic, adaptive concealment
Jiwei Zhao, Peixuan Zhu, Zhibin Wen, Fanyi Tang, Bin Zheng, Rongrong Zhu, Haoliang Qian, Chao Qian, Huan Lu, Hongsheng Chen   +9 more
doaj   +1 more source

Crafting open innovation for collaboration: Insights into multi-actor dynamics for the circular economy transformation

Journal of Innovation & Knowledge
The European Union’s circular economy (CE) policy aims to foster closed-loop systems that reduce waste and resource use, yet its practical implementation remains limited.
Merle Ibach, Kimberly Tatum, Jörg Knieling   +2 more
doaj   +1 more source

Optimal subsidy policy for accelerating the diffusion of green products

Journal of Industrial Engineering and Management, 2013
Purpose: We consider a dynamic duopoly market in which two firms respectively produce green products and conventional products. The two types of product can substitute each other in some degree.
Hongguang Peng
doaj   +1 more source

Perceived strategies to reduce traumatic childbirth amongst Iranian childbearing women: a qualitative study

BMC Pregnancy and Childbirth, 2020
Background Psychological birth trauma (PBT), mainly due to overlooking maternal mental health, is a common and high prevalence public health problem in low-resource settings.
Mahshid Taheri, Ziba Taghizadeh, Nahid Jafari, Amirhossein Takian   +3 more
doaj   +1 more source

Circularity in polyethylene waste management through multidimensional integration

Next Sustainability
Polyethylene (PE) is the most widely produced plastic worldwide, yet remains among the least effectively recycled, highlighting a persistent gap between production volume and material circularity.
Anil Kumar Vinayak, Garima Chauhan
doaj   +1 more source

Selection mechanisms underlying high impact biomedical research--a qualitative analysis and causal model.

PLoS ONE, 2010
BackgroundAlthough scientific innovation has been a long-standing topic of interest for historians, philosophers and cognitive scientists, few studies in biomedical research have examined from researchers' perspectives how high impact publications are ...
Hilary Zelko, Guilherme Roberto Zammar, Ana Paula Bonilauri Ferreira, Amruta Phadtare, Jatin Shah, Ricardo Pietrobon   +5 more
doaj   +1 more source

Planejamento agregado da produção ótimo com limite mínimo de estoque influenciado pelas incertezas de demanda Optimal aggregate production planning with minimum inventory limit affected by demand uncertainties

Gestão & Produção, 1995
O artigo trata da determinação de uma política ótima de decisão para um problema de planejamento da produção com restrições de estoque e produção. O horizonte de planejamento é finito, aproximadamente de 1 a 2 anos, com período de discretização mensal ...
Oscar S. Silva Filho, Marcius F. H. Carvalho, Moisés M. Henrique, Carlos A. Fernandes   +3 more
doaj   +1 more source

From drivers to technology empowerment: Decoding the influencing factors of Yellow River tourists' pro-environmental behaviors [PDF]

E3S Web of Conferences
Based on the methodology of constructivist grounded theory, this paper takes the typical tourist areas of the Yellow River Basin as the research field, and systematically explores the influence mechanism of tourists' pro-environmental behavior through ...
Dai Ruirui, Yue Guiling, Zhu He
doaj   +1 more source

A Two-Layer HiMPC Planning Framework for High-Renewable Grids: Zero-Exchange Test on Germany 2045

Energies
High-renewables grids are planned in min but judged in milliseconds; credible studies must therefore resolve both horizons within a single model.
Alexander Blinn, Joshua Bunner, Fabian Kennel   +2 more
doaj   +1 more source

A Study on the Evolution Game of Multi-Subject Knowledge Sharing Behavior in Open Innovation Ecosystems

Systems
With the shift of the global innovation model from traditional closed-loop to open ecosystems, knowledge sharing and collaborative cooperation among firms have become key to obtaining sustainable competitive advantages.
Gupeng Zhang, Hua Zou, Shuo Yang, Qiang Hou   +3 more
doaj   +1 more source