Results 41 to 50 of about 2,128,044 (322)

Forecasting South African grain prices and assessing the non-linear impact of inflation and rainfall using a dynamic Bayesian generalized additive model

Frontiers in Applied Mathematics and Statistics
IntroductionAccurate price forecasts and the evaluation of some of the factors that affect the prices of grains are crucial for proper planning and food security.
Albert Antwi, Albert Antwi, Emelia Thembile Kammies, Emelia Thembile Kammies, Lyson Chaka, Martins Akugbe Arasomwan, Martins Akugbe Arasomwan   +6 more
doaj   +1 more source

New transmission mechanism for the sustainable and humanistic development of human capital: Demand for the ‘rigidity turn’

RUDN journal of Sociology, 2021
The author considers the becoming complex reality as developing nonlinearly and demanding new transmission mechanisms for the formation of human capital and also factors that contribute to changes in these realities: self-reflection of both nature and ...
S. A. Kravchenko
doaj   +1 more source

Wireless Information and Power Transfer: Nonlinearity, Waveform Design, and Rate-Energy Tradeoff [PDF]

IEEE Transactions on Signal Processing, 2016
The design of wireless information and power transfer (WIPT) has so far relied on an oversimplified and inaccurate linear model of the energy harvester.
B. Clerckx
semanticscholar   +1 more source

Questions of existence and uniqueness of the solution of one class of an infinite system of nonlinear two-dimensional equations [PDF]

Известия Саратовского университета. Новая серия: Математика. Механика. Информатика
The paper is devoted to the study of one class of infinite systems of nonlinear two-dimensional equations with convex and monotone nonlinearity. The studied  class of nonlinear systems of algebraic equations has both theoretical and practical ...
Petrosyan, Haykanush S., Andriyan, Silva M., Khachatryan, Khachatur Agavardovich   +2 more
doaj   +1 more source

Principle Study of a Semi-active Inerter Featuring Magnetorheological Effect

Frontiers in Materials, 2019
Inerters are two-terminal mass elements in which the forces applied at the terminals are proportional to relative acceleration between the nodes. The volume and weight of inerters are much smaller than those of any conventional mass element for the same ...
Wei-Min Zhong, Xian-Xu Bai, Chao Tang, An-Ding Zhu   +3 more
doaj   +1 more source

Output feedback model predictive control of spacecrafts based on proportional-integral observer

Systems Science & Control Engineering, 2022
A novel attitude control algorithm is developed for spacecrafts based on the model predictive control and proportional-integral observer (PIO) in the presence of constraints.
Weiqiang Tang
doaj   +1 more source

Discrete localized modes supported by an inhomogeneous defocusing nonlinearity

, 2013
We report that infinite and semi-infinite lattices with spatially inhomogeneous self-defocusing (SDF)\ onsite nonlinearity, whose strength increases rapidly enough toward the lattice periphery, support stable unstaggered (UnST) discrete bright solitons ...
Gligoric, Goran, Hadzievski, Ljupco, Malomed, Boris, Maluckov, Aleksandra   +3 more
core   +1 more source

High-order numerical method for the nonlinear Helmholtz equation with material discontinuities in one space dimension [PDF]

, 2007
The nonlinear Helmholtz equation (NLH) models the propagation of electromagnetic waves in Kerr media, and describes a range of important phenomena in nonlinear optics and in other areas.
Aubry, Baghdasaryan, Baruch, Bayliss, Born, Chen, Chen, Choi, Cretegny, Fibich, Fibich, G. Baruch, G. Fibich, Gómez-Gardeñes, Jackson, Knaap, Kriegsmann, Kriegsmann, Kwan, Landau, MacKay, Marburger, Marı´n, Midrio, Petráček, Ryaben’kii, S. Tsynkov, Sever, Singer, Suryanto, Suryanto, Tsynkov, Wilhelm   +32 more
core   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Nonlinear association between gamma-glutamyl transferase to high-density lipoprotein cholesterol ratio and risk of progression from normoglycemia to prediabetes: a 5-year cohort study

Frontiers in Endocrinology
ObjectiveCurrent research on the association between the Gamma-glutamyl transferase to high-density lipoprotein ratio (GHR) and the risk of prediabetes (pre-DM) remains scarce.
Chuang Gao, Cailing Yu, Peijie Shi, Dehong Liu, Qiming Li, Yong Han   +5 more
doaj   +1 more source