Results 31 to 40 of about 29,105 (295)

Comparison of Different Drying Methods for Asparagus [Asparagus cochinchinensis (Lour.) Merr.] Root Volatile Compounds as Revealed Using Gas Chromatography Ion Mobility Spectrometry

open access: yesFrontiers in Nutrition, 2022
Asparagus [Asparagus cochinchinensis (Lour.) Merr.] is a traditional herbal medicine plant commonly used to nourish yin, moisten dryness, and clear fire cough symptoms.
Gan-Lin Chen   +13 more
doaj   +1 more source

Silica Aerogel Monoliths Derived from Silica Hydrosol with Various Surfactants

open access: yesMolecules, 2018
Owing to their ultra-low thermal conductivity, silica aerogels are promising thermal insulators; however, their extensive application is limited by their high production cost.
Dong Chen   +5 more
doaj   +1 more source

The drying of soil: Thermal regimes and ambient pressures [PDF]

open access: yesAgricultural Meteorology, 1967
SUMMARY Evaporation from a loam soil was studied in the laboratory during the fallingrate stage of drying. The primary variables were temperatures regimes and ambient pressures. The data suggested that: (a) there is a significant relation between the soil temperature and the vapor pressure of water in the air above the surface; (b) the water vapor ...
openaire   +1 more source

Transparent, Superflexible Doubly Cross-Linked Polyvinylpolymethylsiloxane Aerogel Superinsulators via Ambient Pressure Drying [PDF]

open access: yesACS Nano, 2018
Aerogels have many attractive properties but are usually costly and mechanically brittle, which always limit their practical applications. While many efforts have been made to reinforce the aerogels, most of the reinforcement efforts sacrifice the transparency or superinsulating properties.
Guoqing Zu   +7 more
openaire   +2 more sources

Simulation of moisture transfer during wood vacuum drying

open access: yesResults in Physics, 2019
Vacuum techniques are commonly used in material drying applications as they provide good quality at fast rates. In this study, wood samples were dried under absolute pressure of 0.02 MPa at 80 °C to assess the drying characteristics.
Zhengbin He   +4 more
doaj   +1 more source

Synthesis of low-density TEOS based silica aerogel with large surface area and determination of its surface charge [PDF]

open access: yesشیمی کاربردی روز, 2017
The aim of this study is to synthesis of silica aerogel by TEOS, H2O, isopropyl alcohol and n-heptane as solvent and catalyst solutions of HCl and NH4F by sol-gel method in different parameters including molar ratios of IAP/TEOS, Total H2O/TEOS ,TMCS ...
sayyed hassan arabi   +1 more
doaj   +1 more source

Silica-Based Aerogel Composites Reinforced with Reticulated Polyurethane Foams: Thermal and Mechanical Properties

open access: yesGels, 2022
In this work, silica aerogel composites reinforced with reticulated polyurethane (PU) foams have been manufactured having densities in the range from 117 to 266 kg/m3 and porosities between 85.7 and 92.3%.
Beatriz Merillas   +4 more
doaj   +1 more source

Research progress of hydrophobic modification of silica aerogel for oil spill pollution treatment

open access: yes工程科学学报, 2023
Oil spill pollution seriously endangers human and ecosystem health. Therefore, it is urgent to develop oil-absorbing materials to effectively remove oil spill pollution.
Song HAN   +4 more
doaj   +1 more source

MWCNT/Silica aerogel: Preparation, characterization and applications in heterogeneous catalysis and decolorization of aqueous dye solutions [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
2.3 x 10-3 wt% multi-walled carbon nanotube incorporated silica aerogel (MWCNT/Silica aerogel) was synthesized by ambient pressure drying. The as-synthesized MWCNT reinforced silica aerogel was characterized by XRD, SEM, N2-adsorption– desorption, etc.
Isak Rajjak Shaikh   +2 more
doaj   +1 more source

Aeration system optimization for a deep bed dryer for paddy grain using computational fluid analysis and the AHP-TOPSIS method [PDF]

open access: yesFrontiers of Agricultural Science and Engineering
In the context of food security, drying is a crucial postharvest process for paddy grain because it significantly impacts the quality of both paddy and rice. To conserve energy during the drying process, deep bed dryers are used as convective dryers that
Diswandi NURBA   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy