Results 221 to 230 of about 12,504 (308)

Boulder concentration effects on sediment transport and deposition. [PDF]

open access: yesSci Rep
Teng P   +3 more
europepmc   +1 more source

Mechanically Programmable DNA Hydrogel Microparticles for 3D Cellular Systems

open access: yesAdvanced Materials, EarlyView.
DNA hydrogel microparticles are designed to exhibit controllable viscoelasticity and stiffness across three orders of magnitude from 30Pa$30 \,\mathrm{Pa}$ to 6.5kPa$6.5 \,\mathrm{kPa}$. They are uptaken into fibroblast spheroids where they are actively remodeled by cellular forces depending on their mechanical properties.
Tobias Walther   +9 more
wiley   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

open access: yesAdvanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella   +3 more
wiley   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

Simulation results for polyhedral particles obtained with the Discrete Element Method (DEM)

open access: yesSimulation results for polyhedral particles obtained with the Discrete Element Method (DEM)
2014 離散要素法(DEM)、または個別要素法は粉体力学でよく用いられているマイクロメカニカルなシミュレーション方法である。従来の粉体力学に関する研究では、2次元では円盤、3次元では球が粒子形として用いられているが、実際の粉体の粒子は非球形の場合が多いため、円盤や球体により、現実的な粒子の本質(例えば、積み重ねた粒子の安息角度など)を完全に模倣したり、再現したりするのは困難である。本研究では、粉体の多体動力学の信頼できる三次元系の分析方法を発展するため、多面体を粒子形としてシミュレーションで用いられている。また、我々は粒子の形状を多様性することにより、更に現実な粉体の解析結果を求めていた。 一般的に、球体は多角を持つ多面体であると考えられる。そのために、本研究では ...
openaire  

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

open access: yesAdvanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska   +10 more
wiley   +1 more source

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