Results 101 to 110 of about 462,502 (313)

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

open access: yesAgribusiness, EarlyView.
Abstract The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

Pricing Dynamics in the US Hemp Market: A Vertical Price Transmission Analysis of the Hemp Value Chain

open access: yesAgribusiness, EarlyView.
ABSTRACT The US hemp market is a new and nascent industry that has been devoid of research for about half a century. This study examined the effects of exogenous shock on price at each phase of the value chain—Farm (hemp biomass), and its impact on prices at other phases of the value chain—Intermediary Processor (crude cannabidiol hemp) and Final ...
Solomon Odiase   +2 more
wiley   +1 more source

Design of teaching/learning sequences for the chemistry curriculum according to an inquiry-based approach

open access: yesFormare, 2016
Outlined are guidelines (teaching/learning sequences) for chemistry teachers in the first two years of secondary school. This educational proposal is grounded on an inquiry-based approach, and follows the spiral structure of the different levels of the ...
Cecilia Giordano
doaj   +1 more source

Extending Battery Usage Time of a Heavy‐Duty Mecanum‐Wheeled Autonomous Electric Vehicle Used in Iron–Steel Industry by Considering Wheel Slippage

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
It is a fact that slippage causes tracking errors in both longitudinal and lateral directions which results to have less travel distance in tracking a reference trajectory. Less travel distance means having energy loss of the battery and carrying loads less than planned.
Gokhan Bayar   +2 more
wiley   +1 more source

Lagrange Codes [PDF]

open access: yes, 2017
Interpolation plays an important, mostly hidden role in algebraic coding theory. Reed–Solomon codes, BCH codes, and Goppa codes are all codes that may be constructed via interpolation. It is shown that all of these codes form part of a large family of generalised MDS codes.
Martin Tomlinson   +4 more
openaire   +1 more source

A Novel Parameter Estimation Method for Pneumatic Soft Hand Control Applying Logarithmic Decrement for Pseudo‐Rigid Body Modeling

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
In this research, a paradigm of parameter estimation method for pneumatic soft hand control is proposed. The method includes the following: 1) sampling harmonic damping waves, 2) applying pseudo‐rigid body modeling and the logarithmic decrement method, and 3) deriving position and force control.
Haiyun Zhang   +4 more
wiley   +1 more source

A Multi‐instrument Recognition and Autonomous Tracking Control Method for Robot‐Assisted Endoscopic Adjustment

open access: yesAdvanced Intelligent Systems, EarlyView.
During lengthy minimally invasive surgeries, fatigue can cause surgeon tremor and poor endoscopic coordination. This study proposes a robot‐assisted endoscopic adjustment system. It employs a lightweight instrument detection model and a hierarchical multiconstraint controller for visual servoing.
Zijie Yang   +5 more
wiley   +1 more source

Unravelling the Referendum: An Analysis of the 2023 Australian Voice to Parliament Referendum Outcomes Across Capital Cities

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT The 2023 Australian Voice to Parliament Referendum presented a pivotal moment in the nation's democratic landscape. Despite support for Indigenous well‐being, the referendum did not secure the necessary approval, prompting extensive analysis of its outcome.
Scott Baum, William Mitchell
wiley   +1 more source

El proceso de producción escrita de la tesis de grado en Arquitectura: una vía para transformar a los estudiantes de pregrado en escritores académicos / The production process of the written thesis in architecture: a way to transform undergraduate student

open access: yesCuaderno de Pedagogía Universitaria, 2015
Resumen Este artículo se deriva del proyecto de investigación-acción realizado durante el Diplomado de Lectura y Escritura a través del Currículo en el Nivel Superior, del Programa de Alfabetización Académica del Centro de Excelencia para la ...
Orisell Medina Lagrange
doaj   +1 more source

Generalized Lagrange Theorem

open access: yesJournal of Mathematical Analysis and Applications
The present paper is devoted to possible generalizations of the classic Lagrange Mean Value Theorem. We consider a real-valued function of several variables that is only assumed to be continuous. The main concept is to replace the notion of the derivative by the so called bisequential tangent cone.
openaire   +2 more sources

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