Results 91 to 100 of about 831,227 (338)

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

Volatile profile, phenolic content and antioxidant activity of chia seed (Salvia hispanica L.) essential oils obtained by different extraction methods

open access: yesGrasas y Aceites
This investigation aims to reveal the physico-chemical properties and volatile profiles of essential oils derived from chia seeds (Salvia hispanica L.) by employing both hydrodistillation (HDE) and microwave-assisted hydrodistillation (MAHDE) approaches.
B. Aydeniz, O. Guneser
doaj   +1 more source

Processing waste printed circuit boards for material recovery [PDF]

open access: yes, 2007
PURPOSE We have investigated the use of pyrolysis for the processing of waste printed circuit boards (PCBs). The aim was to make the process of separating the organic, metallic, and glass fibre fractions of PCBs much easier and therefore make ...
Hall, W.J., Williams, P.T
core   +1 more source

Longer Acting Injectable: Continuous, Linear Release of a Progestin Contraceptive From an Oxidized Porous Silicon Host

open access: yesAdvanced Healthcare Materials, EarlyView.
Progestin drugs are loaded into a mesoporous silicon dioxide host by melt‐infiltration. Drugs that decompose at or close to their melting point can be loaded by the addition of cholesterol, which acts as a melting point suppressor. High mass loading of the drug is achieved, and dissolution of the composite is controlled by the nanoscale properties of ...
Geoffrey Hollett   +13 more
wiley   +1 more source

The Loss of Volatile Oils in Oriental Tobacco During Pre-Moistening in the Vacuum Chamber - Über den Verlust an ätherischen Ölen bei der Vorfeuchtung von Orienttabaken in der Vakuum-Kammer

open access: yesContributions to Tobacco and Nicotine Research, 1968
If a firm processes all grades of tobacco in a vacuum chamber, it is feared that the conditions of temperature and pressure present will cause a deterioration in quality by loss of the volatile oils, and particularly in the oriental grades, which are ...
Byckling E.
doaj   +1 more source

Oil and Methanol Price volatility [PDF]

open access: yesAustralian Journal of Business and Management Research, 2013
Crude oil as one of the main sources of energy is also the main source of income for members of OPEC. So, the volatility of crude oil price is one of the main economic variables in the world and analysis of the effect of its changes on key economic factors has been always considered as significant.
Esmaeil Naderi   +2 more
openaire   +1 more source

Advanced Oral Delivery Systems for Nutraceuticals

open access: yesAdvanced Healthcare Materials, EarlyView.
Emerging delivery technologies are explored to overcome barriers to oral nutraceutical absorption. Traditional carriers are compared with novel platforms including biodegradable polymers, MOFs, MPNs, and 3D printing. These systems enhance bioavailability, control release, and enable personalized nutrition.
Xin Yang   +4 more
wiley   +1 more source

A Comparative Study on the Characteristics of Different Types of Camellia Oils Based on Triacylglycerol Species, Bioactive Components, Volatile Compounds, and Antioxidant Activity

open access: yesFoods
This study aimed to investigate the characteristics of different varieties of camellia oils and their diacylglycerol (DAG)-enriched derivatives in terms of triacylglycerol (TAG) species, bioactive components, volatile compounds, and antioxidant activity.
Beibei Duan   +4 more
doaj   +1 more source

Advancing from MOFs and COFs to Functional Macroscopic Porous Constructs

open access: yesAdvanced Materials, EarlyView.
This review study investigates the recent progress and methodologies for manufacturing metal–organic framework (MOF) or covalent–organic framework (COF)‐based 3D structured macroscopic porous constructs with high structural integrity, providing the possibility to control their porosity across dimensions.
Seyyed Alireza Hashemi   +8 more
wiley   +1 more source

Researches on the capitalization of some medicinal plants to obtain essential oils by using the performant innovative installation EUV 2x1000 type [PDF]

open access: yesE3S Web of Conferences, 2019
The article includes research on the production of essential oils from medicinal plants by applying water vapour distillation, the method most commonly used for the extraction of essential oils from plants. The results consist of extracting the essential
Grigore Ion   +10 more
doaj   +1 more source

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