Results 61 to 70 of about 80,685 (307)

Stress-dilatancy properties for fiber-reinforced sand

open access: yesYantu gongcheng xuebao, 2018
It is observed that randomly distributed polypropylene fibers act to interlock particles and thus improve the mechanical behavior of the reinforced soils.
KONG Yu-xia , SHENG Fei-fan , WANG Hui-juan
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

The influence of fibre length, diameter and concentration on the modulus of glass fibre reinforced Polyamide 6,6 [PDF]

open access: yes, 2008
Results of an extensive investigation of the mechanical performance of injection moulded long glass fibre reinforced polyamide 6,6 composites are presented.
Thomason, J.L.
core   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

A study of the effect of chemical treatments on areca fiber reinforced polypropylene composite properties

open access: yesScience and Engineering of Composite Materials, 2017
Areca fibers have a great prospect in the polymer composite field since they possess superior properties like being light weight, strong and having high strength-to-weight ratio. In addition, areca fibers are biodegradable, non-toxic and eco-friendly and
Dhanalakshmi Sampathkumar   +2 more
doaj   +1 more source

Assessing the influence of fly ash and polypropylene fiber on fresh, mechanical and durability properties of concrete

open access: yesJournal of King Saud University: Engineering Sciences, 2023
This paper focuses on the investigation of fresh, mechanical, and durability properties of concrete with the influence of fly ash and polypropylene fiber.
Abu Sayed Mohammad Akid   +6 more
doaj   +1 more source

Model of leadership characteristics in addressing construction challenges [PDF]

open access: yes, 2019
Failure of construction projects could be attributed from several challenges that emerged along the construction processes. These challenges are categorised as resources allocation, time, cost, quality, safety, project complexity, changes, uncertainties,
Ngah Nasaruddin, Nur Ain
core  

The influence of fibre length, diameter and concentration on the strength and strain to failure of glass fibre-reinforced polyamide 6,6 [PDF]

open access: yes, 2008
Results of an investigation of the mechanical performance of injection moulded long glass fibre-reinforced polyamide 6,6 composites are presented. The glass fibre content in these composites was varied over the range 10-50% by weight using fibres with ...
Akay   +26 more
core   +1 more source

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

open access: yesAdvanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes   +11 more
wiley   +1 more source

Identification of particles with Lorentz factor up to $10^{4}$ with Transition Radiation Detectors based on micro-strip silicon detectors

open access: yes, 2019
This work is dedicated to the study of a technique for hadron identification in the TeV momentum range, based on the simultaneous measurement of the energies and of the emission angles of the Transition Radiation (TR) X-rays with respect to the radiating
Alozy, J.   +41 more
core   +1 more source

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