Results 51 to 60 of about 90,394 (310)

PVA-C phantom.

open access: yes, 2019
PVA-C-based phantom with a sucrose concentration of 15%.
Javier González-Fernández (7042199)   +4 more
core   +1 more source

Self-healing in cementitious composite containing bacteria and protective polymers at various temperatures

open access: yesMagazine of Civil Engineering, 2021
Autonomous sealing of cracks in concrete through bacteria-induced calcification has become a topic of great concern in the last two decades. This paper is focused on two main issues of the so-called bio-based self-healing concrete, i.e. protection of the
Schreiberova Hana   +7 more
doaj   +1 more source

Studying the Structural and Optical properties of PVA doped with CuO and FeCl 3 composites films [PDF]

open access: yesEngineering and Technology Journal, 2015
In this research, we are studying structural and optical properties of film (PVA doped with CuO and FeCl3).The(CuO)with concentration (7%),and (FeCl3) with different concentrations of FeCl3 (3, 7, and 9) %,preparing by casting method with thickness (25±5)
Aliyah Abdul Muhsen Shehab   +2 more
doaj   +1 more source

Crystallinity of PVA Component of PVA-PVC Graft Polymer

open access: yesKobunshi Kagaku, 1963
の水溶液中で過硫酸カリを触媒としてPVCを重合する際に, 一部得られるPVA-PVCグラフトポリマーについてPVA成分の結晶性を広角X線回折により検討した。PVA成分の結晶性は比較的高いが結晶回折ピークの半価幅は著しく拡大している。これはPVA成分の結晶が枝ポリマーであるPVCの存在によって不完全な, パラクリスタリン状態で存在することを示すものと考えられる。結晶化度は成分分率でほぼ決まりグラフト率の大きいものほど低い値を示す。結晶回折ピークの半価幅は枝ポリマーの数に影響される。高温での熱処理による結晶化度の変化は, ブレンドおよびホモPVAと異なった傾向を示す。
Shirakashi, Kan   +2 more
openaire   +2 more sources

Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane [PDF]

open access: yesJournal of the Brazilian Chemical Society, 2009
Bipolar membranes (BMP) were prepared by bonding together separate anion and cation exchange membrane. For the preparation of the cation selective layer, aqueous solution of PVA [poly(vinyl alcohol)], and PASA [poly(anetholesulfonic acid sodium salt)], where the ratio of PVA/PASA was changed for the control of the membrane charge density, were cast for
Espinoza-Gómez, Heriberto   +3 more
openaire   +3 more sources

Curcumin nanoparticles incorporated in PVA/collagen composite films promote wound healing

open access: yesDrug Delivery, 2020
Skin repair remains a common problem in plastic surgery. Wound dressing plays an important role in promoting local skin healing and has been widely studied.
QingQing Leng   +9 more
doaj   +1 more source

Design of composite membrane emergency drainage device for floating roof tank

open access: yesYou-qi chuyun, 2020
Emergency drainage device is an important safety device for floating roof tank to timely drain the overloaded water in case of emergency. In practical application, a large amount of maintenance work is required for the commonlyused float type emergency ...
Bin PU   +3 more
doaj   +1 more source

Characterization of Degradable Plastics from Sago and Breadfruit Starch-Based with Addition of Zinc Oxide (ZnO) Catalyst and Polyvinyl Alcohol (PVA)

open access: yesJurnal Kimia Sains dan Aplikasi, 2023
Degradable plastic can be used as a substitute for commercial plastic. Degradable plastic made from starch with zinc oxide (ZnO) catalyst and polyvinyl alcohol (PVA) has biodegradable properties.
Rozanna Dewi, Novi Sylvia, Medyan Riza
doaj   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

AI image enhancement for failure analysis in 3D quantum information technology

open access: yesScientific Reports
3D integration and miniaturization techniques get more widely used in conventional integrated circuits but also represent crucial ingredients for future quantum computing devices.
Raphael Wilhelmer   +9 more
doaj   +1 more source

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