Results 61 to 70 of about 55,826 (319)

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt   +6 more
wiley   +1 more source

Mathematical modelling of platelet production

open access: yes, 2022
Hospitals sometimes experience shortages of donor blood platelet supplies, motivating research into in vitro production of platelets. We use mathematical modelling to study platelet production. First, we model the flow in a novel platelet bioreactor described by our collaborators in Shepherd et al.
openaire   +2 more sources

An Integrated MATLAB Code for Homogenization‐Based Topology Optimization and Generating Functionally Graded Surface Lattices for Additive Manufacturing

open access: yesAdvanced Engineering Materials, EarlyView.
Unlocking structural efficiency, this work integrates homogenization‐based topology optimization with functionally graded triply periodic minimal surface lattices to create highly efficient, customizable lattice structures. Key achievements include the development of a versatile MATLAB framework, optimization of mechanical properties for additive ...
Mirhan Ozdemir   +4 more
wiley   +1 more source

DEVELOPMENT OF GEOMETRY MOBILE LEARNING TO ENHANCE STUDENTS' MATHEMATICS LEARNING INTEREST

open access: yesBarekeng
The development research aims to produce a mobile learning application for geometry to enhance students' interest in learning mathematics. The product encompasses solid geometry materials for 7th-grade junior high school students. The development process
Ana Muliyana   +2 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Statistical Distributions of Morphologically Classified Defects in Metal Additive Manufacturing with Implications for Fatigue Life Prediction

open access: yesAdvanced Engineering Materials, EarlyView.
Morphological features of three defect types in metal additive manufacturing (AM)—lack of fusion, keyhole, and gas‐entrapped pores—are statistically characterized using best‐fit distributions evaluated via coefficient‐of‐determination, Kolmogorov–Smirnov test, and quantile–quantile plots.
Ahmad Serjouei, Golnaz Shahtahmassebi
wiley   +1 more source

Penggunaan Prezi untuk Media Pembelajaran Matematika Materi Fungsi

open access: yesDesimal, 2019
This study aims to develop prezi-based mathematics learning media to increase interest in learning in the function material. The media developed is a mathematics learning media using Prezi software.
Rohiman Rohiman, Bambang Sri Anggoro
doaj   +1 more source

Mathematics as a cultural product

open access: yes, 1999
In this short introduction, we report on the main points discussed in our group during the Conference, as well as some problems that appeared to be important issues for future research. One of the main issues in our group's discussion was that mathematics is a complex cultural product so we begin with that.
Arzarello, Fernando   +3 more
openaire   +2 more sources

Geometry‐Based Scan Curve Analysis: Rapid Method for the Evaluation of Scan Strategies in Powder Bed Fusion

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
This study presents rapid evaluation methods for scan strategies in powder bed fusion (PBF) of polymers with a NIR laser as an example for its application. It uses line buffer‐based calculations and point density fields to predict the performance of four different scan strategies. The methods show promising results in laser‐based PBF of polymer samples,
Simon Leupold   +9 more
wiley   +1 more source

Antibacterial Activity of Germacrane Type Sesquiterpenes from Curcuma heyneana Rhizomes

open access: yesIndonesian Journal of Chemistry, 2014
The isolation of terpenoids from C. heyneana rhizomes and their antibacterial activity have been conducted. The terpenoids were isolated by using vacuum liquid chromatography and radial chromatography.
Hartiwi Diastuti   +3 more
doaj   +1 more source

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