Results 51 to 60 of about 270,230 (255)

Effect of fiber length on mechanical properties of wood composite plastic (Polypropylene) [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2010
The objective of adding reinforcing fillers, such as natural fibers to plastics is to increase the strength compared with neat plastic and wood. In this research the effect of wood pulp fiber length (short, medium and long), aspect ratio and fiber ...
Farshid Basiji   +3 more
doaj   +1 more source

The Lupus Damage Index Revision Program: Results From the Item Generation and Reduction Phases

open access: yesArthritis Care &Research, EarlyView.
Objective A data‐driven and expert/patient consensus‐based project to develop a revised Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology (ACR) Damage Index (SDI) is under way supported by SLICC, ACR, and the Lupus Foundation of America. Our objective is to report the item generation and reduction phase results
Burak Kundakci   +25 more
wiley   +1 more source

RESPONSE OF FLAX TO SOIL LEVELING, PLANTING METHODS AND SEEDING RATES. [PDF]

open access: yesJournal of Plant Production, 2003
Two field experiments were carried out during 2000/2001 and 2001/2002 seasons at Gemmeiza Agricultural Research Station, El-Gharbia Governorate to study the effect of two methods of soil leveling (Traditional, accurate and Laser methods), five planting ...
A. Al-Azony, T. Abou Zaid,
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

COMPARATIVE ASPECTS CONCERNING METHODS USED TO DETERMINE COTTON FIBERS STRENGTH PER DENIER [PDF]

open access: yesAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2015
This work has shown to you a study about the determination of tensile strenght by three methods of stress, using the four varieties of the cotton fibers: Russian 2A, Russian 1A, Sudanese Baracat 5x5, Pakistani SLM (Medium IV).
HRISTIAN Liliana   +2 more
doaj  

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

A Novel Method for Accurate Cotton Fiber Length Distribution Measurement in Resource-Limited Settings

open access: yesJournal of Natural Fibers
Accurate and efficient measurement of the cotton fiber length distribution is crucial for optimizing yarn quality. However, traditional methods require substantial sample quantities, making them less practical in resource-constrained environments.
Addisu Ferede Tesema   +4 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

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