Results 81 to 90 of about 2,714,905 (353)

Splay-bend nematic phases of bent colloidal silica rods induced by polydispersity

Nature Communications, 2022
Different shapes of molecules or particles can exhibit various liquid crystal phases. The authors report on an experimental discovery of a so called splay-bend nematic liquid crystal phase in a colloidal system of bent silica rods.
Ramakrishna Kotni, Albert Grau-Carbonell, Massimiliano Chiappini, Marjolein Dijkstra, Alfons van Blaaderen   +4 more
doaj   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

The Emerging 4D Printing of Shape‐Memory Thermomorphs for Self‐Adaptative Biomedical Implants

Advanced Functional Materials, EarlyView.
4D printing enables the creation of smart implants that adapt to changing conditions in the human body over time. At the core of this technology are shape‐memory thermomorphs (SMTMs). This review offers an in‐depth analysis of 4D printing with SMTMs, emphasizing the latest advancements in smart materials, stimuli, programming principles, and their ...
Aixiang Ding, Fang Tang, Eben Alsberg
wiley   +1 more source

Heterostructure Based of Ti-TiO₂(NW)/rGO Hybrid Materials for Electrochemical Applications

Inorganics
This study investigated a hybrid electrode based on titanium/titanium dioxide nanowires/reduced graphene oxide (Ti-TiO2(NW)/rGO) that was developed in two stages.
Mina-Ionela Morariu (Popescu), Mircea Nicolaescu, Corina Orha, Carmen Lăzău, Narcis Duteanu, Cornelia Bandas   +5 more
doaj   +1 more source

Compositional trends in Ni-Mn-Ga Heusler alloys: first-principles approach

MATEC Web of Conferences, 2015
In this work we present a systematic investigation of magnetic and structural properties of a broad range of Ni-Mn-Ga alloys by means of the density functional theory. Calculations are carried out for the cubic austenitic phase.
Sokolovskiy Vladimir, Sokolovskaya Yulia, Buchelnikov Vasiliy D., Zagrebin M., Zayak Alexey T.   +4 more
doaj   +1 more source

Interaction-induced chiral p_x \pm i p_y superfluid order of bosons in an optical lattice

, 2013
The study of superconductivity with unconventional order is complicated in condensed matter systems by their extensive complexity. Optical lattices with their exceptional precision and control allow one to emulate superfluidity avoiding many of the ...
Ewerbeck, A., Hemmerich, A., Kock, T., Smith, C. Morais, Wirth, G., Ölschläger, M.   +5 more
core   +1 more source

Material Composition Gradient Controls the Autonomous Opening of Banksia Seed Pods in Fire‐Prone Habitats

Advanced Functional Materials, EarlyView.
The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe, Lorenzo Guiducci, Rivka Elbaum, Peter Werner, John W. C. Dunlop, David J. Merritt, Peter Fratzl, Michaela Eder   +7 more
wiley   +1 more source

Impact of Dyslipidemia on Tear Film and Meibomian Gland Dysfunction: A Cross-Sectional Study of the Interplay between Serum Lipid Profile and Ocular Surface Health

Journal of Ophthalmology
Purpose. To determine the relationship between dyslipidemia and dry eye disease (DED), as well as its influence on tear film and meibomian glands. Methods.
José-Manuel Serrano-Morales, Noelia Álvarez-Santaliestra, María Carmen Sánchez-González, Antonio Ballesteros-Sánchez, José-María Sánchez-González   +4 more
doaj   +1 more source

On the Need for Phenomenological Theory of P-Vortices or Does Spaghetti Confinement Pattern Admit Condensed-Matter Analogies?

, 2005
Usually the intuition from condensed-matter physics is used to provide ideas for possible confinement mechanisms in gauge theories. Today, with a clear but puzzling ``spaghetti'' confinement pattern, arising after a decade of lattice computer experiments,
A. B. Migdal, A. D. Mironov, A. M. Polyakov, A. Morozov, A. S. Kronfeld, B. Julia, C. Callan, D. Gross, D. Kirzhnitz, F. A. Bais, G. Grüner, G. Hooft ’t, G. Hooft ’t, G. Volovik, H. Nielsen, I. Kogan, J. Greensite, K. Wilson, L. D. Faddeev, L. D. Landau, L. Debbio Del, L. Debbio Del, M. M. Salomaa, M. Shifman, P. Nelson, P. Vinciarelli, R. J. Hughes, R. P. Feynman, S. G. Matinyan, T. Ivanenko, T. N. Tomaras, V. N. Gribov   +31 more
core   +1 more source

A Gym for Cells—Direct Laser Writing of Magnetic Multilayered Micro Actuators for Mechanical Stimulation of Cells

Advanced Functional Materials, EarlyView.
Surface‐attached multilayer micromagnet systems are fabricated by two‐photon crosslinking. The pillar‐shaped micro actuators consist of a soft and flexible surface‐attached cell‐repellent hydrogel layer at the bottom, acting as a hinge and a cell‐adhesive hydrophobic polymer filled with magnetic nanoparticles.
Nicolas Geid, Ayman Husari, Eleonora Galli, Lukas Leffler, Pascal Tomakidi, Jürgen Rühe   +5 more
wiley   +1 more source