Results 71 to 80 of about 27,315 (159)

Comprehensive investigation of raw and NaOH alkalized sansevieria fiber for enhancing composite reinforcement

Case Studies in Chemical and Environmental Engineering
Sansevieria trifasciata fiber (STF) has a high cellulose content and considerable potential as a polymer composite reinforcement. This study aims to investigate the effect of alkali treatment on the physicochemical properties, tensile strength, thermal ...
Edi Widodo, Pratikto, Sugiarto, Teguh Dwi Widodo   +3 more
doaj   +1 more source

Cellulose and xylan nanofiber mats via electrospinning: Lignin-enhanced properties in wood-inspired biocomposites

Carbohydrate Polymer Technologies and Applications
Nanofiber mats were fabricated by combining cellulose, xylan, and organosolv lignin. The biopolymers, and a small amount (15 wt. %) of polyethylene oxide, were dissolved in a mixture of trifluoroacetic acid and trifluoroacetic anhydride, then blended in ...
Miguel García-Rollán, Ramiro Ruiz-Rosas, Juana M. Rosas, José Rodríguez-Mirasol, José M. Porras-Vázquez, José J. Benítez, Athanassia Athanassiou, José A. Heredia-Guerrero, Susana Guzmán-Puyol   +8 more
doaj   +1 more source

Oral solid self-nanoemulsifying drug delivery systems of candesartan citexetil: formulation, characterization and in vitro drug release studies

AAPS Open, 2017
Candesartan cilexetil is an ester prodrug antagonist to angiotensin II receptor type 1 (AT1) used in management of many cardiovascular diseases. The absolute bioavailability of candesartan cilexetil is about (14–40%).
Halah Hussein Ali, Ahmed Abbas Hussein
doaj   +1 more source

Miniature photonic-crystal hydrophone optimized for ocean acoustics

, 2010
This work reports on an optical hydrophone that is insensitive to hydrostatic pressure, yet capable of measuring acoustic pressures as low as the background noise in the ocean in a frequency range of 1 Hz to 100 kHz.
Gordon S. Kino, Kim S., Knudsen V. O., Michel J. F. Digonnet, Olav Solgaard, Onur Kilic, Peng G. D., Škvor Z.   +7 more
core   +1 more source

Advances and Challenges in Computational Research of Micro and Nano Flows [PDF]

, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014), Asproulis, N, Drikakis, D, Frank, M   +3 more
core  

Molecular dynamics simulations of the contact angle between water droplets and graphite surfaces

, 2012
Wetting is a widespread phenomenon, most prominent in a number of cases, both in nature and technology. Droplets of pure water with initial radius ranging from 20 to 80 [\AA] spreading on graphitic surfaces are studied by molecular dynamics simulations ...
Alberto Ortona, Danilo Sergi, de Gennes, de Reijter, Dutta, Giulio Scocchi, Iijima, Ingebrigtsen, Islam, Jaffe, Kroto, MacKerell, Marrink, Méndez-Vilas, Novoselov, Plimpton, Plimpton, Quéré, Schimmele, Scocchi, Shinoda, Thostenson, Vaisman, Wang, Werder, Wu, Young   +26 more
core   +1 more source

Drying Methods Applied to Ionic Gelation of Mangaba (Hancornia speciosa) Pulp Microcapsules

ChemEngineering
Brazil is one of the richest countries in biodiversity, with biomes that host countless native species of ecological and economic relevance. Among its native fruits, mangaba (Hancornia speciosa) stands out for its nutritional relevance.
Jordan Heiki Santos Uemura, João Renato de Jesus Junqueira, Ângela Christina Conte Theodoro, Jefferson Luiz Gomes Corrêa, Thaisa Carvalho Volpe Balbinoti, Juliana Rodrigues do Carmo   +5 more
doaj   +1 more source

Physicochemical, Functional, and Antibacterial Properties of Inulin-Type Fructans Isolated from Dandelion (Taraxacum officinale) Roots by “Green” Extraction Techniques

Applied Sciences
The current study aims for the isolation and physicochemical characterization of inulin from defatted dandelion roots using green extraction techniques, including microwave extraction (MAE) and ultrasound-assisted extraction (UAE).
Nadezhda Petkova, Ivanka Hambarliyska, Ivan Ivanov, Manol Ognyanov, Krastena Nikolova, Sevginar Ibryamova, Tsveteslava Ignatova-Ivanova   +6 more
doaj   +1 more source

Template assisted surface micro microstructuring of flowable dental composites and its effect on the microbial adhesion properties [PDF]

, 2016
Despite their various advantages, such as good esthetic properties, absence of mercury and adhesive bonding to teeth, modern dental composites still have some drawbacks, e.g., a relatively high rate of secondary caries on teeth filled with composite ...
Frenzel, Nadja, Jandt, Klaus D., Lüdecke, Claudia, Maenz, Stefan, Sanz Beltrán, Vanesa, Sigusch, Bernd W., Völpel, Andrea   +6 more
core   +1 more source

The utilization of nanoparticles to modify surface properties in acidification processes

Iraqi Journal of Chemical and Petroleum Engineering
        Stimulation plays a crucial role in the oil and gas industry, particularly in the acidizing process. Thus, the development of acidification processes is essential for improving the productivity index and enhancing the physical properties of ...
Ahmed AlAmeen, Faleh Almahdawi, Reza Azin, Ramyar Suramairy   +3 more
doaj   +1 more source