Results 51 to 60 of about 173,472 (305)

3D puzzle-inspired construction of large and complex organ structures for tissue engineering

open access: yesMaterials Today Bio, 2023
3D printing as a powerful technology enables the fabrication of organ structures with a programmed geometry, but it is usually difficult to produce large-size tissues due to the limited working space of the 3D printer and the instability of bath or ink ...
Zheng-Tian Xie   +4 more
doaj   +1 more source

Product Service Systems and Sustainability: Opportunities for Sustainable Solutions [PDF]

open access: yes, 2002
Given that the concept of PSS is beginning to 'catch on' and gain attention, it is time for UNEP to contribute to, and influence the progress of PSS, to ensure that in concept and application it incorporates the idea of sustainability.
Carlo Vezzoli, Ezio Manzini
core  

A Self‐Organized Liquid Reaction Container for Cellular Memory

open access: yesAdvanced Science, EarlyView.
How cells restore epigenetic information lost during replication is not known. This work proposes a mechanism based on the formation of biomolecular condensates. These condensates are induced by the chromosome itself and serve as reaction vessels for reconstructing missing epigenetic markers.
Sukanta Mukherjee   +4 more
wiley   +1 more source

MAmIoTie: An Affective and Sensorized Toy to Support Emotion Perception

open access: yesProceedings, 2018
Affective Computing aims at developing systems to recognize, process and interpret emotions. This paper presents a sensorized toy with affective functionalities through cognitive services based on IBM Watson technology. The purpose of this research is to
Raúl García-Hidalgo   +5 more
doaj   +1 more source

Simulation Guided Hand-Driven Portable Triboelectric Nanogenerator: Design, Optimisation, and Evaluation

open access: yesMicromachines, 2021
Inspired by the fundamental mechanics of an ancient whirligig (or buzzer toy; 3300 BC), a hand-driven rotational triboelectric nanogenerator (HDR-TENG) was designed and optimised, guided by our recently reported mathematical modelling.
Yunzhong Wang   +3 more
doaj   +1 more source

Exact time-dependent density functional theory for impurity models

open access: yes, 2012
We employ the density matrix renormalization group to construct the exact time-dependent exchange correlation potential for an impurity model with an applied transport voltage.
Baer   +43 more
core   +1 more source

Unveil Fundamental Graph Properties for Neural Architecture Search

open access: yesAdvanced Science, EarlyView.
This paper proposes NASGraph, a graph‐based framework that represents neural architectures as graphs whose structural properties determine performance. By revealing structure–performance relationships, NASGraph enables efficient neural architecture search with significantly reduced computation.
Zhenhan Huang   +4 more
wiley   +1 more source

TOOLS OR TOYS? THE IMPACT OF HIGH TECHNOLOGY ON SCHOLARLY PRODUCTIVITY [PDF]

open access: yesEconomic Inquiry, 2002
We examine the impact of communication technology on scholarly productivity by considering patterns of coauthored economics articles. Using articles in three major economics journals from 1970–79 and 1992–96, we find (1) sharp growth from distant coauthorships (authors not in the same metropolitan area prior to publication), as the theory predicts, and,
Daniel S. Hamermesh, Sharon M. Oster
openaire   +1 more source

Percolation Model of Insider Threats to Assess the Optimum Number of Rules

open access: yes, 2014
Rules, regulations, and policies are the basis of civilized society and are used to coordinate the activities of individuals who have a variety of goals and purposes.
Gadepally, Vijay   +2 more
core   +1 more source

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

open access: yesAdvanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy