Decay estimates

Estimating punching shear capacity (PSC) of steel fibre reinforced concrete slabs (SFRCS) is a crucial task in structural design. This study investigates the performances of artificial neural networks trained by the adaptive moment estimation (Adam) method in dealing with the task of interest. To alleviate overfitting problem, decoupled weight decay (AdamW) and L2 regularization (AdamL2) are used. A dataset including 140 samples has been used to train and verify the machine learning approaches.

5p nhanchienthien 25-07-2023 6 3   Download

In this paper, we present some explicit exponents in the estimates for the volumes of sub-level sets of polynomials on bounded sets and applications to the decay of oscillatory integrals and the convergence of singular integrals.

14p vimelindagates 18-07-2022 3 2   Download

The author present in the article "The semilinear coupled systems for the external damping models with variable coefficients" some results on the global solvability with arbitrarily small data of the Cauchy problem for the following semilinear coupled system with a variable coefficient.

13p runordie3 27-06-2022 5 2   Download

Parameter estimation in biological models is a common yet challenging problem. In this work we explore the problem for gene regulatory networks modeled by differential equations with unknown parameters, such as decay rates, reaction rates, Michaelis-Menten constants, and Hill coefficients. We explore the question to what extent parameters can be efficiently estimated by appropriate experimental selection.

12p viwyoming2711 16-12-2020 8 1   Download

Twenty Five lignolytic fungi were isolated from decaying wood samples and were screened for the laccase production using guaiacol and ABTS as indicator compounds. The positive isolates were confirmed for the presence of laccase using Azure B and quantitative enzyme assay in presence of catalase using ABTS as substrate. Further laccase producing capacity of fungus was estimated in seven different media where Czapex Dox medium showed highest enzymatic activity of 17.2 U/ml.

15p angicungduoc6 20-07-2020 15 1   Download

The automotive memory devices especially work in high-temperature because they are located close to engine, exhaust units; those require high reliable operation and long-life data retention in high-temperature environments. This paper reports on the investigation of memory data retention of a nano-organic material-based nonvolatile memory in high-temperature environments. The decay of memory state current was theoretically presented as a stretched-exponential law.

10p thayboitinhyeu 02-03-2020 22 0   Download

We study the initial-boundary value problem for a system of nonlinear wave equations with nonlinear damping and source terms, in a bounded domain. The decay estimates of the energy function are established by using Nakao’s inequality. The nonexistence of global solutions is discussed under some conditions on the given parameters.

19p tuongvidanh 06-01-2019 27 1   Download

Study of the charmed meson decays is mentioned in the articles. These researches help to improve the results of light mesons decays. In this paper, applying the factorization method, we try to estimate the branching ratios of charmed meson decays.

8p truongtien_09 08-04-2018 14 0   Download

Borotellurite glasses doped with Sm3+ ions were prepared by a melt–quenching technique. The studies on optical characterization of Sm3+ ions have been carried out through absorption, emission and decay spectra. Judd-Ofelt (JO) intensity analysis has been presented and JO parameters were calculated for Sm3+ ions in borotellurite glasses. Radiative properties such as transition probabilities, branching ratios, radiative lifetime of 4G5/2 level and quantum efficiency were estimated by using JO parameters.

7p truongtien_09 08-04-2018 17 0   Download

This is the second in a series of three papers in which we initiate the study of very rough solutions to the initial value problem for the Einstein vacuum equations expressed relative to wave coordinates. By very rough we mean solutions which cannot be constructed by the classical techniques of energy estimates and Sobolev inequalities. In this paper we develop the geometric analysis of the Eikonal equation for microlocalized rough Einstein metrics. This is a crucial step in the derivation of the decay estimates needed in the first paper. ...

50p noel_noel 17-01-2013 51 5   Download

A final reason to believe a connection between pollution and asthma might exist is that studies with more convincing empirical designs have found consistent effects of pollution on children’s health. Chay and Greenstone (2001) use declines in pollution that resulted from the 1980-82 recession and find a strong link between total suspended particles and infant mortality. Since most infant mortality is due to respiratory failure, it is reasonable to suspect that pollution could be related to other respiratory illnesses, such as asthma.

46p can_thai 12-12-2012 57 1   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Extinction and Decay Estimates of Solutions for a Class of Porous Medium Equations

8p sting10 07-03-2012 53 3   Download