Results 101 to 110 of about 1,584,853 (313)

Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization

Advanced Functional Materials, EarlyView.
Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain, Yun Seong Kim, Pallab Layak, Pranav Krishnan, Young bum Lee, Minjiang Zhu, Shubh Singh, Philippe H. Geubelle, Paul V. Braun, Jeffery W. Baur, Nancy R. Sottos, Sameh H. Tawfick, Randy H. Ewoldt   +12 more
wiley   +1 more source

Accounting for Pairwise Heterogeneity in Bilateral Trade Flows: A Stochastic Varying Coefficient Gravity Model [PDF]

This paper suggests an alternative way for estimating the gravity equation that takes into consideration country-pair heterogeneity in bilateral trade flows. Specifically, a stochastic varying coefficient gravity model based on Hildreth and Houck’s (1968)
Vangelis Tzouvelekas
core  

Genetically Programmed Shape‐Morphing of Engineered Living Materials

Advanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker, Yuchen Liu, Miguel Baños, Rosanne Schmachtenberg, Mahmudul Hasan, Claudia Fink‐Straube, Luai R. Khoury, Wilfried Weber   +7 more
wiley   +1 more source

History, Culture, and Trade: A Dynamic Gravity Approach [PDF]

What determines trade patterns? Habit persistence in consumer tastes and learning-by-doing in production imply that history and culture matter. Deriving a dynamic gravity equation from a simple model, it is shown that cultural similarity is a product of ...
Douglas L. Campbell
core   +2 more sources

Gravity chains: estimating bilateral trade flows when parts and components trade is important [PDF]

Trade is measured on a gross sales basis while GDP is measured on a net sales basis, i.e. value added. The rapid internationalisation of production in the last two decades has meant that gross trade flows are increasingly unrepresentative of value added ...
Taglioni, Daria, Baldwin, Richard
core   +2 more sources

Does the China–Pakistan free trade agreement benefit the vegetable exports of Pakistan? A gravity estimation

Frontiers in Sustainable Food Systems
In the backdrop of criticism that the China-Pakistan Free Trade Agreement has disproportionately favored China, particularly in agricultural trade, there has been a surge in Pakistan’s imports, leading to a trade deficit.
Humayun Khan, Yangfen Chen, Liu Lv
doaj   +1 more source

Thermo-visco-elastic Rayleigh waves under the influence of couple-stress and gravity

International Journal of Mathematics and Mathematical Sciences, 1991
This paper is concerned with thermo-visco-elastic Rayleigh waves under the influence of couple-stresses and gravity. A more general phase velocity equation for these waves is derived.
Tapan Kumar Das, P. R. Sengupta, Lokenath Debnath   +2 more
doaj   +1 more source

Magnetically Driven Biofabrication for Tissue Engineering: From Nanoparticle Design to Mag‐ATMP Translation

Advanced Healthcare Materials, EarlyView.
Magnetically responsive nanoparticles enable remote control over biomaterials, cells, and engineered tissues. This review summarizes material design, biological safety, fabrication and actuation strategies, computational validation, and translational pathways that support the development of magnetic tissue‐engineering platforms and future magnetically ...
Konstantinos Ioannidis, Dimitrios Lefas, Maya Guilliams, Jackie Van Grootenbril, Isaak Decoene, Dimitrios Sakellariou, Bart Smeets, Stefanos Mourdikoudis, Ioannis Papantoniou   +8 more
wiley   +1 more source

Gravity with Intermediate Goods Trade

East Asian Economic Review, 2017
This paper derives the gravity equation with intermediate goods trade. We extend a standard monopolistic competition model to incorporate intermediate goods trade, and show that the gravity equation with intermediates trade is identical to the one ...
Sujin Jang , E. Young Song
doaj   +1 more source

The Equation of Gravity

This paper provides the mechanism behind gravity. We introduce a suppression function based on 4-simplex connectivity, naturally reproducing Newtonian gravity behavior. Computational tests confirm alignment with galaxy rotation curves, cosmic expansion, and large-scale structure growth.
openaire   +2 more sources