Results 91 to 100 of about 8,091,828 (309)

International trade without CES : estimating translog gravity [PDF]

open access: yes, 2012
This paper derives a micro-founded gravity equation based on a translog demand system that allows for flexible substitution patterns across goods. In contrast to the standard CES-based gravity equation, translog gravity generates an endogenous trade cost
Novy, Dennis
core   +1 more source

Architectural Tuning of Bouligand Electrospun Laminates Enables Coupled Mechanical Robustness and Electromechanical Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Bioinspired Bouligand architectures are translated into biodegradable polymer laminates with integrated sensing, revealing how structural design governs multifunctional performance. A 20° interlayer rotation optimizes strength, flexibility, and electromechanical response, while embedded nanotube networks enable real‐time damage detection and wearable ...
Piotr K. Szewczyk   +4 more
wiley   +1 more source

Variation in specific gravity and shrinkage of tapped rubberwood

open access: yesMaderas: Ciencia y Tecnología
Hevea brasiliensis (rubber tree), a major source of natural rubber, could also be an important source of lumber as senescence occurs. However, latex collection is known to affect Hevea brasiliensis (rubber tree) wood formation and consequently, wood ...
Ighoyivwi Onakpoma   +5 more
doaj   +1 more source

Relationship between egg specific gravity and specific gravity of yolk plus embryo at 2–3 dpf.

open access: yes, 2014
The specific gravity of yolk plus embryo was estimated by Eq. 4 (Appendix).
Kyung-Mi Jung (615874)   +3 more
core   +1 more source

The Role of Viscoelasticity in Heterogeneous Glioblastoma Stem Cell Invasion in Biomimetic 3‐Dimensional Hydrogels

open access: yesAdvanced Healthcare Materials, EarlyView.
The role of viscoelasticity in the invasion of heterogeneous glioblastoma stem cells (GSCs) was investigated with GSCs categorized into subgroups based on molecular profile, as Reactive, Invasive, or Constructive using viscoelastic biomimetic hyaluronan‐oxime hydrogels.
Nicole J. Blaine   +4 more
wiley   +1 more source

Caracterização das propriedades físico-mecânicas da madeira de eucalipto com diferentes densidades Characterization of physical and mechanical properties of eucalyptus lumber with different specific gravities

open access: yesRevista Árvore, 2004
O presente trabalho teve por objetivo caracterizar um lote de madeira de eucalipto comercializada por uma empresa do setor florestal brasileiro. Utilizou-se, neste trabalho, a madeira de Eucalyptus, provavelmente E. grandis W.
Moisés Silveira Lobão   +3 more
doaj   +1 more source

Gravity and Gauge [PDF]

open access: yes, 2012
Philosophers of physics and physicists have long been intrigued by the analogies and disanalogies between gravitational theories and (Yang-Mills-type) gauge theories.
Teh, Nicholas
core  

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

open access: yesAdvanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab   +8 more
wiley   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

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