This paper investigates the dynamic response of a pile embedded in layered transversely isotropic unsaturated soils subjected to vertical external excitation. The quintessential Biot biphasic model for saturated media is replaced with triphasic media, which simulates more realistic terrestrial subsurface soil characteristics. With aid boundary element method (BEM), around divided into series elements and Green's function obtained by extended precise integration (EPIM), while modeled as 1D...

Abstract In this paper, elastodynamic responses of the layered transversely isotropic unsaturated subgrade–pavement system subjected to moving load are investigated. The subgrade soil is described via a triphasic Biot‐type model introducing effect matric suction, immiscible flows water and air, transverse isotropy. rigid pavement modeled by Kirchhoff plate theory, while flexible stratification medium theory. First, governing equations obtained after algebraical manipulations. precise...

The development of industrial Internet platform is an important carrier to realize the innovation Industry 4.0. This paper analyzes mechanism Chinese platforms from three aspects motivation, incentives, and constraints, summarizes influencing factors development, establishes a growth model platform, select representative factual data as observation variables verify effect each factor. In end, this puts forward relevant suggestions for government, companies, other related parties drive realization

Abstract Spectral mesh analysis and processing methods, namely ones that utilize eigenvalues eigenfunctions of linear operators on meshes, have been applied to numerous geometric applications. The operator used predominantly in these methods is the Laplace‐Beltrami operator, which has often‐cited property it intrinsic, invariant isometric deformation underlying geometry, including rigid transformations. Depending application, this can be either an advantage or a drawback. Recent work...

In differential geometry of surfaces the Dirac operator appears intrinsically as a tool to address immersion problem well in an extrinsic flavour (that comes with spin transformations comformally transfrom immersions) and two are naturally related. this paper we consider corresponding pair discrete operators, latter on polygonal faces normals defined each face, show that many key properties smooth theory preserved. particular, transformations, conformal invariants for them, relation between...

Reasonable spatial system distribution is the prerequisite for optimization of resource and allocation coordinated development regional economy. Therefore, correctly identifying impact different types structures on scientific technological innovation an important way to promote rational layout enhance strength innovation. Based theory structure panel data 26 provinces autonomous regions in China from 2005 2019, this paper tested efficiency gap by constructing index, index. The research...

Slender energy pile shows a buckling deformation behavior under the coupling effect of temperature cycles and external loads, significantly affecting long-term serviceability even leading to failure. To investigate thermo-mechanical performance end-bearing slender piles cycles, centrifuge modeling experiment was conducted in this work, which distribution, displacement, axial force, bending moment during cycle were measured. The results unveiled that force increases as rises, potentially...

In differential geometry of surfaces the Dirac operator appears intrinsically as a tool to address immersion problem well in an extrinsic flavor (that comes with spin transformations comformally transfrom immersions) and two are naturally related. this paper we consider corresponding pair discrete operators, latter on polygonal faces normals defined each face, show that many key properties smooth theory preserved. particular, transformations, conformal invariants for them, relation between...

Abstract This paper introduces a generative model for 3D surfaces based on representation of shapes with mean curvature and metric, which are invariant under rigid transformation. Hence, compared existing machine learning frameworks, our substantially reduces the influence translation rotation. In addition, local structure will be more precisely captured, since is explicitly encoded in model. Specifically, every surface first conformally mapped to canonical domain, such as unit disk or...

Abstract The contribution of this paper is twofold. First, we generalize the definition discrete isothermic surfaces. Compared with previous ones, it covers more surfaces, e.g., associated families minimal and non-zero constant mean curvature (CMC in short) whose counterpart smooth case are Second, show that CMC surfaces can be obtained by holomorphic data (a solution additive rational Toda system) via generalized Weierstrass type representation.

The paper addresses estimating and testing treatment effects with multivariate outcomes in clinical trials where imperfect diagnostic devices are used to assign subjects groups. focuses on the pre-post design proposes two novel methods for effects. In addition, sample size power calculations developed. compared each other a traditional method simulation study. new show significant advantages terms of power, coverage probability, required size. application is illustrated data from...

This paper explores the impact of major unexpected public event on survivability technology-based small and medium-sized enterprises role external support policies internal adjustment strategies in mitigating shock. Using data Growth Enterprise Market listed companies for 2018-2021, we find that COVID-19 outbreaks generate severe survival pressure SMEs, which see mainly reduction development capacity, operation profitability, debt servicing capacity. Additionally, both can effectively...