Results 81 to 90 of about 68,786 (306)

Behavior

open access: yesHBRC Journal, 2013
This paper presents an experimental and analytical study on the behavior of post-tensioned concrete beams with variable discontinuous fibers’ content.
Hossam-eldin Abd-elazim Elsharkawy   +3 more
doaj   +1 more source

Damping of the woodwind instrument reed material Arundo donax L [PDF]

open access: yes, 2018
The viscoelastic properties (E', G', tanΦ, δ) of Arundo donax (AD) and a polypropylene-beech fiber composite (PPC) were measured from RT to 580K for various frequencies and strains.
Arlic, Uwe   +4 more
core   +2 more sources

Oil‐Coated Nanoplastics Induce Rapid Membrane Disruption and Severe Intestinal Injury

open access: yesAdvanced Science, EarlyView.
Oil‐rich food contact dramatically amplifies MNP release from plastic takeout containers, producing oil‐coated nanoplastics with altered surface properties and rapid membrane‐disruptive effects. These particles cause severe intestinal barrier damage and immune dysfunction in mice, and risk modeling suggests that long‐term gastrointestinal burdens may ...
Ruwen Xie   +17 more
wiley   +1 more source

Flexural strength of hydrogen plasma-treated polypropylene fiber-reinforced polymethyl methacrylate denture base material

open access: yesThe Journal of Indian Prosthodontic Society, 2018
Objectives: The present study aimed to evaluate flexural strength of hydrogen plasma-treated polypropylene fibers-reinforced polymethyl methacrylate (PMMA) polymer composite.
Merin Mathew   +2 more
doaj   +1 more source

Antioxidant Dyes for Polypropylene Fiber

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1971
ポリプロピレン繊維は種々の用途に用いられているが, この繊維の欠点の一つは熱や光によって酸化されやすいことである。洗たく, 乾燥あるいは染色などの操作時に繊維中の抗酸化剤は容易に脱落してしまう。抗酸化性化合物と色素をトリアジン環で連結することにより抗酸化性を持つ染料を合成した。この新しい型の染料を用いて繊維の着色と熱安定性の向上が染色によって同時にえられた。染色繊維のオーブン劣化時間およびフィルムの 140℃ での酸素吸収法によってえられた誘導期間によって合成した染料がすぐれた抗酸化性を持っていることを示した。
Kiroku KOMATSU   +2 more
openaire   +2 more sources

The Faraday Scalpel: Electrochemical Nerve Lesioning Mechanisms Studied in Invertebrate Models

open access: yesAdvanced Science, EarlyView.
Direct‐current produces nerve lesioning through discrete electrochemical reactions. Using hypoxia‐sensitive locust nerves and hypoxia‐tolerant leech nerves, we map three injury pathways: cathodic oxygen reduction, cathodic alkalization, and anodic chloride oxidation. These findings establish electrochemical lesioning—the “Faraday Scalpel”—as a precise,
Petra Ondráčková   +5 more
wiley   +1 more source

Microscopic and qPCR comparison of fungal growth in residential carpets with different carpet fiber materials, at varying relative humidity levels, and presence of household dust [PDF]

open access: yes, 2018
People spend 90% of their time indoors exposed to the microbiome of the built environment. Fungal species are part of this indoor microbiome that have been found to grow on various components of residential homes including house dust, wallpaper, gypsum ...
Nastasi, Nicholas
core  

Cargo compartment fire extinguishing system [PDF]

open access: yes, 2016
In all large passenger transport airplanes, halon fire bottles are used to extinguish fire in the cargo compartments. Halon as a fire-extinguishing agent, contributes to the destruction of stratospheric ozone in the atmosphere and it is banned in many ...
Behbahani-Pour, M.J., Radice, G.
core   +1 more source

Single‐Particle Mid‐Infrared Photothermal Imaging Reveals Hidden Heterogeneity in Real‐World Micro‐ and Nanoplastics

open access: yesAdvanced Science, EarlyView.
Mid‐infrared photothermal imaging enables multidimensional profiling of micro‐ and nanoplastics in bottled water. A total of 9.9 × 104 particles L−1 is detected, with 64% in the nanoscale regime. Spectral evolution, including peak narrowing and band shifts, reveals local chain reorganization in polyethylene terephthalate (PET), highlighting intrinsic ...
Xinyu Deng   +4 more
wiley   +1 more source

TOpic: rare and special cases, the real "Strange cases" [PDF]

open access: yes, 2015
Introduction: The bladder hernia represents approximately 1-3% of all inguinal hernias, where patients aged more than 50 years have a higher incidence (10%).
AUTIERI, DOMENICO   +48 more
core   +1 more source

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