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Structural stability concepts in medieval and renaissance mechanics

, Manchester, UK, 2006.         [ Links ] [2] E. Benvenuto. An Introduction to the History of Structural Mechanics, volume 1. Springer-Verlag, New York, 1991.         [ Links ] [3] J. D. Bernal. Science in ... . Clagett. The Science of Mechanics in the Middle Ages. The University of Wisconsin Press, Madison, Wisconsin, 1961.         [ Links ] [6] J. G. A. Croll and A. C. Walker. Elements of Structural Stability

Certain graphs under Pythagorean fuzzy environment

two graphs and produce a new graph by simple or complex changes, has wide range of applications in games theory, automata theory, structural mechanics and networking system. An intuitionistic fuzzy ... products, different types of structural models can be combined to produce a better one. They may be useful for the configuration processing of space structures. Further, the paper has explored some crucial

Argyres-Douglas theories, Painlevé II and quantum mechanics

, Holomorphic Anomaly and Quantum Mechanics, J. Phys. A 51 (2018) 055402 [arXiv:1612.07687] [INSPIRE].ADSMathSciNetzbMATHGoogle Scholar [19] R. Dijkgraaf, S. Gukov, V.A. Kazakov and C. Vafa, Perturbative ... and M. Mariño, Topological Strings from Quantum Mechanics, Annales Henri Poincaré 17 (2016) 3177 [arXiv:1410.3382] [INSPIRE].ADSMathSciNetCrossRefzbMATHGoogle Scholar [57] J. Gu, A. Klemm, M. Mariño

TBA equations and resurgent Quantum Mechanics

Abstract We derive a system of TBA equations governing the exact WKB periods in one-dimensional Quantum Mechanics with arbitrary polynomial potentials. These equations provide a generalization of the ... Quantum Mechanics formulated by Voros. Our derivation builds upon the solution of similar Riemann-Hilbert problems in the study of BPS spectra in \( \mathcal{N} \) = 2 gauge theories and of minimal surfaces

Lung mechanics and high-resolution computed tomography of the chest in very low birth weight premature infants

evaluate an association between lung mechanics and lung structural alterations in very low birth weight infants (birth weight less than 1500 g). DESIGN: A cross-sectional evaluation of pulmonary mechanics ... pulmonary function test and high resolution computed tomography of the chest. We also aimed to demonstrate an association between lung mechanics and structural alterations of lung parenchyma in very low birth

Mechanics of composite hydrogels approaching phase separation

the mechanics of composites. To study the impact of particle compatibility in polymer matrices on the mechanical properties of composites, we here study composite silica- protein based hydrogels. The ... , limited thermodynamic compatibility of polymers and particles often leads to poor dispersal and agglomeration of the particles in the matrix, which negatively impacts the mechanics of composites. To study

Protein-Based Structural Materials

represented in this special topic on protein-based structural materials. Protein-based materials occupy a special place in the realm of biogenic materials, where ceramics and biopolymers are key materials

Structural Behavior of RC Beams Containing a Pre- Diagonal Tension Crack

. J., and May, I. M., (2001). Fracture Mechanics Model Applied to Shear Failure of Reinforced Concrete Beams without Stirrups, ACI Structural Journal, 98: 184-90. [ Links ] Gustafsson, P. J., and ... Karihaloo, B. L., (1993). Shear Capacity of Longitudinally Reinforced Beams-A Fracture Mechanics Approach, ACI Structural Journal 90: 591-600. [ Links ] Swartz, S. E., Hu, K. K., and Jones, G. L. (1978

A structural model of technology acceptance

set for the practical significance of correlation coefficients. Structural equation modelling was used to assess the factorial validity of the measuring instruments' perceived usefulness, perceived ... assess whether the items loaded significantly onto the scales to which they were related. Using structural equation modelling (SEM) methods, as implemented by AMOS, six measurement models were tested

Temperature-Dependent HfO2/Si Interface Structural Evolution and its Mechanism

annealing temperature higher than 500 °C [16, 17, 18]. The crystalline structure of HfO2 strongly affects optical and electrical properties. For example, the structural change of HfO2 from amorphous to ... ] presented the structural properties of 5-nm HfO2 films after nitric acid oxidation of n-doped Si substrates. They found that high annealing temperature increases the growth rate of crystalline nuclei. However

Nonlinear symmetries of perfectly invisible PT-regularized conformal and superconformal mechanics systems

Abstract We investigate how the Lax-Novikov integral in the perfectly invisible PT-regularized zero-gap quantum conformal and superconformal mechanics systems affects on their (super)-conformal ... symmetry with this integral results in a nonlinearly extended generalized Shrödinger algebra. The PT-regularized superconformal mechanics systems in the phase of the unbroken exotic nonlinear \( \mathcal{N

New insights into the structural characteristics of irradiated crotamine

structure and affect the biologica properties of biomolecules, it has been successfully employed to attenuate animal toxins. The present study aimed to characterize the structural modifications on irradiated ... . Conclusions: Our results indicate that irradiation leads to progressive changes in the structure of the toxin, which could explain a decrease in myotoxic activity. Keywords: Gamma radiation; Structural

Structural organization of polygalacturonase-encoding genes from Penicillium griseoroseum

structural unit of the genes encoding PG cloned until now.   MATERIALS AND METHODS Fungal strains and inoculum production Penicillium charlesii (CCT 4752), P. chrysogenum, P. citrinum (CCT 3281), P ... relationship, and morphological and physiological characteristics confirm that they are different species (Pereira et al. 2002). Comparison of the structural units of PG genes from Penicillium species

Snake venom galactoside-binding lectins: a structural and functional overview

structural/functional aspects of these lectins. Moreover, the advances of techniques applied in protein-carbohydrate recognition have provided important approaches in order to screen for possible biological ... carbohydrates, and have been isolated from plants, microorganisms and animal sources [1]. Although distinct lectins lack primary structural similarity, they share similar glycan-binding specificities in which the

Concurrent optimization of structural topology and infill properties with a CBF-based level set method

In this paper, a parametric level-set-based topology optimization framework is proposed to concurrently optimize the structural topology at the macroscale and the effective infill properties at the ... in structural design using a homogenization method. Computer Methods in Applied Mechanics and Engineering, 1988, 71(2): 197–224MathSciNetzbMATHGoogle Scholar 13. Fujii D, Chen B, Kikuchi N. Composite

Structural determinants of the hyperalgesic activity of myotoxic Lys49-phospholipase A2

effects; however, the amino acid residues that determine hyperalgesia and edema are unknown. The aim of this study was to characterize the structural determinants for the Lys49-PLA2-induced nociception and ... inflammation. Methods Scanning alanine mutagenesis in the active-site and C-terminal regions of BthTx-I has been used to study the structural determinants of toxin activities. The R118A mutant was

Shockwave S-matrix from Schwarzian quantum mechanics

Abstract Schwarzian quantum mechanics describes the collective IR mode of the SYK model and captures key features of 2D black hole dynamics. Exact results for its correlation functions were obtained ... 10 (2017) 167 [arXiv:1701.00528] [INSPIRE]. [30] D. Bagrets, A. Altland and A. Kamenev, Sachdev-Ye-Kitaev model as Liouville quantum mechanics, Nucl. Phys. B 911 (2016) 191 [arXiv:1607.00694

Derivation of an Efficient Non-Prismatic Thin Curved Beam Element Using Basic Displacement Functions

which hold pure structural foundations. Following basic principles of structural mechanics, it is shown that exact shape functions for non-prismatic thin curved beams could be derived in terms of BDFs ... are in good agreement with those in the literature. Basic displacement functions; structural mechanics; shape functions; non-prismatic curved beam; static analysis; free vibration 1. Introduction