25 papers · ranked by Valyu relevance
Nikolas Kuhn
We construct moduli stacks of stable sheaves for surfaces fibered over marked nodal curves by using expanded degenerations. These moduli stacks carry a virtual class and therefore give rise to enumerative invariants. In the case of a surface with two irreducible components glued along a smooth divisor, we prove a…
Mariam Al Ali Al Maadeed, Deepalekshmi Ponnamma
Society 5.0 establishes innovations and innovativeness as the basic platforms for accelerating the development of solution-based strategies for the sustainability problems every society is facing. It features an interactive cycle operating at a society-wide level through which data are collected, analyzed and…
Tejas Kalelkar, Ramya Nair
Two-sided incompressible surfaces in Seifert fiber spaces with isolated singular fibers are well-understood. Frohman [Fro86] and Rannard [Ran96] have shown that one-sided incompressible surfaces in Seifert fiber spaces which have isolated singular fibers are either pseudo-horizontal or psuedo-vertical. We extend their…
Md Shadhin, Nusrat Jahan Tisha, Marzia Dulal, Raghavan Jayaraman + 1 more
Plant-based cellulosic fibers are often considered a preferred material choice for polymer composites due to growing environmental concerns. The hierarchical macro- and micro-structures of the reinforcing fibers determine the characteristics of fiber-matrix interfaces and performance of the composite. The non-aligned…
Tadashi Ashikaga, Yukio Matsumoto
- §5.1 Automorphisms of Riemann surfaces and equisymmetric strata - §5.2 Logarithmic quadratic representation of automorphisms - §5.3 Little Teichm¨uller space in an orbifold chart of M orb g - §5.4 Automorphisms and cyclic branched coverings of stable curves - §5.5 Equisymmetric strata at the boundary charts of M orb…
Sebastian Lifka, Kristóf Harsányi, Erich Baumgartner, Lukas Pichler + 8 more
'Dariya Baiko' 'Karsten Wasmuth' 'Johannes Heitz' 'Marco Meyer' 'Anna-Christin Joel' 'Jörn Bonse' 'Werner Baumgartner' 'Matthias Mail'] Nanofibers are drawing the attention of engineers and scientists because their large surface-to-volume ratio is favorable for applications in medicine, filter technology, textile…
Sarah Vanessa Langwald, Andrea Ehrmann, Lilia Sabantina, Benjamin S. Hsiao
'Benjamin S. Hsiao'] Electrospun nanofiber mats are nowadays often used for biotechnological and biomedical applications, such as wound healing or tissue engineering. While most studies concentrate on their chemical and biochemical properties, the physical properties are often measured without long explanations…
Dominik Burr, Rudi Reichenbächer, Christina Scheffler, Konrad Steiner + 1 more
- Contact angles on differently sized carbon fiber (CF) rovings vary only slightly - Contact angles between resin and fibers depend on the infiltration speed and are non-constant - The dynamic contact angle has only little influence on the considered capillary rise simulations - The rise height of the resin inside the…
J.A. Sanz-Herrera, A. Apolinar-Fernandez, A. Jimenez-Aires, P. Perez-Alcantara + 2 more
Curved fibered structures are ubiquitous in nature and this organization is found in the majority of biological tissues. Indeed, the mechanical behavior of these materials is of pivotal importance in biomechanics and mechanobiology fields. In this paper, we develop a multiscale formulation to characterize the…
Authors not listed
Wood pulp fibers can be hot-pressed to form binder-less high-density fiber network sheets of improved mechanical properties, competing with polymer matrix biocomposites. We have investigated hot-pressing, microstructure, and mechanical properties of eco-friendly and low energy-demand chemi-thermomechanical (CTMP) wood…
Vivek Khatua, B. Gurumoorthy, G. K. Ananthasuresh
Fiber-Reinforced Polymer Composite (FRPC) parts are mostly made as laminates, shells, or surfaces wound with 2D fiber patterns even after the emergence of additive manufacturing. Making FRPC parts with embedded continuous fibers in 3D is not reported previously even though topology optimization shows that such designs…
Jeffrey Sanders, Benjamin J Coscia, Alexandr Fonari, Mayank Misra + 4 more
The complex development of cosmetic and medical formulations relies on an ever-growing accuracy of predictive models of hair surfaces. Hitherto, modeling efforts have focused on the description of 18-methyl eicosanoic acid (18-MEA), the primary fatty acid covalently attached to the hair surface, without explicit…
Dipen Kumar Rajak, Pratiksha H. Wagh, Emanoil Linul, Sergio Torres-Giner
'Sergio Torres-Giner'] In the last decade, synthetic fiber, as a reinforcing specialist, has been mainly used in polymer matrix composites (PMC’s) to provide lightweight materials with improved stiffness, modulus, and strength. The significant feature of PMC’s is their reinforcement. The main role of the reinforcement…
Xiangjia Chen, Lip M. Lai, Zishun Liu, Chengkai Dai + 3 more
'Isaac C. W. Leung' 'Charlie C. L. Wang' 'Yeung Yam'] In this paper, we present a new computer-controlled weaving technology that enables the fabrication of woven structures in the shape of given 3D surfaces by using threads in non-traditional materials with high bending-stiffness, allowing for multiple applications…
Jonas H. Osório, Foued Amrani, Frédéric Delahaye, A. Dhaybi + 8 more
'Kostiantyn Vasko' 'Fabio Giovanardi' 'Damien Vandembroucq' 'Gilles Tessier' 'Luca Vincetti' 'Benoît Debord' 'Frédéric Gérôme' 'Fetah Benabid'] GPPMM Group, XLIM Institute, CNRS UMR 7252, University of Limoges, Limoges, 87060, France GLOphotonics, 123 Avenue Albert Thomas, Limoges, 87060, France Departament of…
Katherine L. Meinhold, Tyler Tankersley, Rylie Darlington, Jennifer L. Robinson
Aligned nano and micron-sized electrospun scaffolds are advantageous for 3D in vitro models of fibrous, aligned tissue. A common approach to induce alignment is to collect on a rotating mandrel at high rotational speeds. Historically, rotating mandrel speed has been considered the major driver in tuning the degree of…
Wierzchalek, Ladislas, Gauthier, Georges + 2 more
The addition of a small quantity of flexible fibers in a granular material is an efficient technique to increase the yield stress of the material. While the influence of fiber addition on the mechanical strength of granular media has been studied, much less is known about the flow properties of grain-fiber mixtures. In…
Xinyu Chen, Honghao Cao, Yue He, Qili Zhou + 5 more
Nanofibers have a wide range of applications in many fields such as energy generation and storage, environmental sensing and treatment, biomedical and health, thanks to their large specific surface area, excellent flexibility, and superior mechanical properties. With the expansion of application fields and the upgrade…
Pierre Ucla, Joanne Le Chesnais, Henri Ver Hulst, Xingming Ju + 9 more
The forces exerted by cells upon the fibers of the extracellular matrix play a decisive role in cell motility in development and disease. How the local physical properties of the matrix (such as density, stiffness, orientation) affect cellular forces remains poorly understood. Existing approaches to measure cell 3D…
Anna A. Meyer, Abdolrahman Omidinia-Anarkoli, Michelle Harmeth, Joscha Graeve + 10 more
Modeling the 3D microenvironment and cell growth of natively anisotropic human tissues in vitro constitutes a significant challenge in tissue engineering and biofabrication. Short polymeric fibers gain growing attention in this field due to their applicability as pipettable or injectable anisometric building blocks in…
Majed H. Moosa, Mohamed Abu-Okail, Ahmed Abu-Oqail, Samah A. Al-Shelkamy + 3 more
'Samah A. Al-Shelkamy' 'W. M. Shewakh' 'M. Abdel Ghafaar' 'Victor Tcherdyntsev'] This article investigates the effect of geometrical alternatives for fiber directions on the structural and tribological properties of glass and carbon fibers when molded with epoxy as polymeric composite fabrics for the safety and quality…
Moein Zarei, Marek J. Żwir, Beata Michalkiewicz, Miroslawa El Fray
Fabricating complex hierarchical structures mimicking natural vessels and arteries is pivotal for addressing problems of cardiovascular diseases. Various fabrication strategies have been explored to achieve this goal, each contributing unique advantages and challenges to the development of functional vascular grafts.…
Barbara Schamberger, Sebastian Ehrig, Thomas Dechat, Silvia Spitzer + 4 more
Little is known about the contribution of 3D surface geometry on the development of multi-layered tissues containing fibrous extracellular matrix components such as those found in bone. Here we elucidate the role of curvature in the formation of chiral, twisted plywood-like structures. Tissues consisting of murine…
Evan He, Shruti Motiwale, Elizabeth Cosgriff-Hernandez, Michael S. Sacks
Electrospun fiber meshes have long served as biomaterials in a wide range of biomedical applications due to their functional similarities to extracellular matrix and highly tunable properties. Altering the mechanical behaviors of individual fibers and their microarchitecture (e.g.; diameter, crimp, orientation…
Mohammad Hamidul Islam, Shaila Afroj, Nazmul Karim
High-performance fibre reinforced polymer (FRP) composites offer excellent specific strength and stiffness when compared to high-density metallic materials. However, their inherent brittleness leads to sudden and catastrophic failure without sufficient pre-warning, rendering them unsuitable for many applications. To…