Results 131 to 140 of about 2,869,605 (252)

Image of mathematics: A case study of two women's early mathematics experiences

open access: yesSchool Science and Mathematics, EarlyView.
Abstract People often view mathematics as abstract, cold, and irrelevant to real life, and their school experiences likely influence such views. In this case study, we investigated the mathematics experiences of two women who participated in an afterschool girls‐only STEM club 30 years ago when they were in fifth and sixth grades.
Lili Zhou   +4 more
wiley   +1 more source

Active Learning in Precalculus: The Impact of Redesigning a Large Enrollment Course

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT This paper describes an active learning instructional approach that was designed based on the principles outlined in the 2018 Mathematical Association of America Instructional Practices Guide and was implemented in a large enrollment Precalculus course at a large urban institution with a high percentage of students from underrepresented ...
Aimee J. Ellington
wiley   +1 more source

Bridging Dimensions in STEAM Education: Linking 2D Function Art and 3D Modeling Using GeoGebra

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT This study examines a constructionist‐oriented STEAM learning activity in which Grade 11 students used GeoGebra 3D to model bridges. Building on prior work in function art, the project extended mathematical art‐making from two‐dimensional representations to three‐dimensional structures, emphasizing the use of functions, geometric ...
Guillermo Bautista Jr   +4 more
wiley   +1 more source

Approximate error of trigonometric functions [PDF]

open access: yes, 1997
P(論文)This note describes and illustrates about the errors and error ratios of fundamental trigonometric functions, namely sin, cos and tan. Sin and cos functions can be expanded by power-series,so that for small argument these functions are expressed by ...
米澤, 洋, 43019
core  

HyAQMet: Hourly Air Quality and Meteorology Dataset for Dhaka

open access: yesGeoscience Data Journal, Volume 14, Issue 1, January 2027.
HyAQMet is a 6‐year (2017–2022) hourly dataset integrating ERA5‐Land, ERA5 Single Levels, CAMS EAC4, and MERRA‐2 into 52,584 analysis‐ready records across 42 air quality and meteorological variables for Dhaka, Bangladesh, supporting machine learning‐based pollutant forecasting, seasonal climatology and boundary layer–aerosol interaction studies for one
Adity Barua   +4 more
wiley   +1 more source

Robust Analytical LUT‐Based DPC for a Weak‐Grid‐Connected DFIG with Low‐Cost Implementation

open access: yesVector: The Journal of Engineering, Volume 2027, Issue 1, January/December 2027.
Analytical lookup‐table‐based direct power control of a grid‐connected doubly‐fed induction generator driven by two‐level voltage source inverter with stability proof and robustness. ABSTRACT This paper focuses on analytical lookup‐table (LUT)‐based direct power control (DPC) of a grid‐connected doubly‐fed induction generator (DFIG) driven by two‐level
Abdelhak Djoudi   +3 more
wiley   +1 more source

Experimental methods in chemical engineering: The scientific method versus engineering design methodology

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 12, Page 6403-6422, December 2026.
Abstract Engineering graduate students confuse the scientific method and problem solving when presenting their pre‐doctoral exams and theses: Science discourse adopts question and hypotheses to assert and establish a study's rationale, while it is problem and objectives in engineering design.
Gregory S. Patience   +4 more
wiley   +1 more source

Some identities on degenerate trigonometric functions

open access: yes
In this paper, we study several degenerate trigonometric functions, which are degenerate versions of the ordinary trigonometric functions, and derive some identities among such functions by using elementary methods.
Kim, Taekyun, kim, Dae San
core  

Verification of an Incompressible Viscoelastic Flow Solver Using the Method of Manufactured Solutions for Oldroyd‐B and Giesekus Constitutive Models

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 98, Issue 12, Page 1384-1422, December 2026.
This study utilizes the Method of Manufactured Solutions (MMS) to validate high‐order compact finite‐difference schemes for 2D incompressible viscoelastic flows. By applying Oldroyd‐B and Giesekus models to a lid‐driven cavity benchmark, the researchers rigorously assessed numerical accuracy across varying Reynolds and Weissenberg numbers.
Juniormar Organista   +5 more
wiley   +1 more source

Computing Bounds on the Eigenvalues of the Preconditioned X‐FFT System in 3D Linear Elastic Homogenization

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The previously introduced X‐FFT solver permits solving three‐dimensional linear elastic homogenization problems with high accuracy and efficiency. Due to the extended finite element discretization (X‐FEM), matrix‐inclusion problems may be approximated with the error convergence of interface‐conforming finite elements.
Flavia Gehrig, Matti Schneider
wiley   +1 more source

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