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evaporation, etc ; atmospheric pressure; electric field; glucose; molecular dynamics; temperature; Show all 6 Subjects
Abstract:
... Microwave vacuum evaporation (MVE) is a promising alternative to conventional methods. However, the mechanisms underlying its efficiency remain elusive. In this study, the effects of microwaves on glucose solutions were investigated via molecular dynamics (MD) simulations and experimental studies to elucidate possible microwave non-thermal and thermal effects, respectively. MD simulations on energ ...
evaporation, etc ; dried milk; food safety; lactose; micelles; milk; models; oils; prediction; Show all 9 Subjects
Abstract:
... This study applies the single drop techniques to compare the efficacy of Raman, FT – NIR, and FT-MIR spectral imaging to quantify lactose concentration in dried whole milk on different metallic surfaces. Drying the samples avoids degradation problems such as water evaporation or oil degradation and scattering due to micelles. Spectral imaging techniques minimise sampling issues while also describi ...
evaporation, etc ; Aspergillus; Penicillium; breads; food chemistry; konjac mannan; polylactic acid; spoilage; texture; wheat gluten; Show all 10 Subjects
Abstract:
... The current study aimed to reveal the changes in quality and microbial diversity of bread at 25 °C, and to analyze the activity of antifungal bilayer film on maintaining the quality of bread during 10 days of storage. Antifungal bilayer film prepared with cinnamaldehyde loaded polylactic acid/konjac glucomannan/wheat gluten (PLA/KGM/WG-CIN) was used to preserve bread samples fermented at different ...
evaporation, etc ; air; dissolved gases; equations; heat; heat exchangers; heat treatment; milk; solubility; steam; temperature; Show all 11 Subjects
Abstract:
... A thermodynamically based theoretical analysis of bubble formation on hot heat-exchanger wall surfaces in systems for continuous indirect thermal treatment of milk was performed. Whereas previous research on bubble-related fouling has been experimental with just hypothesis about mechanisms behind the impact of bubble formation on fouling, this research contribute with a novel theoretical anadlysis ...
... Although thousands of superhydrophobic composites have been reported, it is still a challenge to develop eco-friendly superhydrophobic materials by a simple and low-cost strategy. Here, a paper-based superhydrophobic material was prepared by carbon fiber powders and polydimethylsiloxane through a facile spraying method. This obtained material has excellent liquid resistance and self-cleaning prope ...
... Pomegranate (Punica grantum L.) fruit juice was concentrated by forward osmosis or thermal evaporation and the samples were stored at ambient (25 °C) and accelerated (37 °C) storage conditions. The anthocyanin content of raw, reconstituted forward osmosis as well as reconstituted thermally evaporated pomegranate juice were 421.1, 414.4 and 357.2 mg/kg respectively. The physicochemical attributes o ...
... Urine consists of a mixture of water (90∼95%) and nutrients, which makes it a potential source of clean water and nutrients. Interfacial solar evaporation technology is a highly competitive method for wastewater purification and resource recovery. Herein, a series of polypyrrole-based photothermal conversion films were prepared using ferric chloride, where pyrrole was the raw materials, cotton clo ...
evaporation rate, etc ; absorption; desalination; desorption; ecological restoration; hydraulic conductivity; liquids; oils; seawater; steam; water purification; wettability; Show all 12 Subjects
Abstract:
... A better knowledge for the design and synthesis of low-cost, novel porous materials is highly desirable in various fields such as recyclable solar desalination and liquid recycling. Herein, a polydimethylsiloxane-based sponge with a web-like three-dimensional (3D) interconnected porous structure was developed for effective recovery of liquids and the continuous interfacial solar steam generation ( ...
evaporation rate, etc ; absorption; absorptivity; carbon nanotubes; electromagnetic field; heat; liquids; nanoparticles; roughness; solar energy; surface roughness; temperature; Show all 12 Subjects
Abstract:
... Hypothesis: Nanostructured materials are widely used for solar energy harvesting and conversion due to their excellent photothermal properties. It is generally accepted that the better the light absorption ability, the better the photothermal conversion efficiency. Experiment: A series of experiments in solar evaporation of liquid marbles (LMs) by coating the droplets with Fe₃O₄, Ni nanoparticles ...
... To comprehensively investigate the multi-scale characteristics of coal spontaneous combustion, in situ infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) were utilized. The samples were pre-oxidized at 70 °C for 2, 4, 6, and 8 h (the raw coal and above samples were named R₀, R₂, R₄, R₆, and R₈), then the secondary oxidation experiments were carried out. The results showed tha ...
... Milk adulteration is a major challenge faced by the dairy sector. Starch is a common milk adulterant with negative impact on consumer health. The major shortfalls in the present methods for detection and quantification of starch in milk are the higher limit of detection (LOD) and the need for additional chemical reagents. Hence, developing a chemical-free method with lower LOD for starch in milk i ...
evaporation, etc ; Larimichthys crocea; acetic acid; catalytic activity; cooked foods; food chemistry; linalool; octenol; odor compounds; odors; oxidation; raw fish; Show all 12 Subjects
Abstract:
... Cooking improves food aroma, but few studies have explored how cooking affects food aromas. Here, aroma changes in mildly salted large yellow croaker (Larimichthys crocea, MSLYC) after steaming, baking, frying, and deep frying was investigated. The raw fish was dominated by fishy notes but after cooking, the aroma became dominated by fatty notes. Nine volatiles, including hexanal, nonanal, (E, Z)- ...
evaporation, etc ; acetylene; air; air pollution control; alkenes; aromatic compounds; cities; inventories; models; natural gas; oil and gas industry; ozone; solvents; China; Show all 14 Subjects
Abstract:
... Both concentrations and emissions of many air pollutants have been decreasing due to implement of control measures in China, in contrast to the fact that an increase in emissions of non-methane hydrocarbons (NMHCs) has been reported. This study employed seven years continuous NMHCs measurements and the related activities data of Shanghai, a megacity in China, to explore evolution of emissions and ...
... Herein, a modified indirect method was established for the determination of 3-monochloropropane-1,2-diol esters (3-MCPDEs) and glycidyl esters (GEs), employing magnetic solid phase extraction by boronic acid-functionalized magnetic nanoparticles to replace the traditional clean-up procedure. Compared with routine methods, it has been proved to be more sensitive with limits of detection in the rang ...
evaporation, etc ; amoxicillin; blood serum; chemical species; chloroform; electric potential difference; ethyl acetate; geometry; humans; liquid membranes; micellar electrokinetic capillary chromatography; polymers; solvents; wastewater; Show all 14 Subjects
Abstract:
... Micro-electromembrane extraction (μ-EME) was presented for the selective extraction of four main β-lactam antibiotics (penicillin, phenoxypenicillin, ampicillin, and amoxicillin) from complex samples. A volatile solvent (ethyl acetate or chloroform) was sandwiched between a plug of the complex sample and another plug of an aqueous acceptor solution in a transparent polymeric tube and formed the so ...
evaporation, etc ; cellulose; electric potential difference; electric power; electricity; filtration; freshwater; graphene; graphene oxide; light emitting diodes; photocatalysis; power generation; solar energy; solar radiation; steam; wastewater; Show all 16 Subjects
Abstract:
... As one of the ways to comprehensively utilize solar energy, solar-driven interfacial evaporation displays promising opportunities to alleviate both freshwater and energy shortages. However, there is always a partial impairment of solar energy utilization during evaporation, and its operation is stagnant without sunlight. In this study, a novel asymmetric evaporator is designed that achieves the ma ...
Jakub Piastek; Jindřich Mach; Stanislav Bardy; Zoltán Édes; Miroslav Bartošík; Jaroslav Maniš; Vojtěch Čalkovský; Martin Konečný; Jiří Spousta; Tomáš Šikola
... Surface-enhanced Raman spectroscopy (SERS) is a perspective nondestructive analytic technique enabling the detection of individual nanoobjects, even single molecules. In this paper, we have studied the morphology of Ga islands deposited on chemical vapor deposition graphene by ultrahigh vacuum evaporation and local optical response of this system by the correlative Raman imaging and scanning elect ...
... An important function of the Tear Film Lipid Layer (TFLL) is the retardation of evaporation. We propose two micro-scaled systems to quantify the influence of the TFLL in evaporation for single patients, which may contribute as an improvement on the diagnosis of Meibomian Gland Dysfunctions (MGD). Meibum was extracted from 10 patients with hypersecretory MGD and 9 healthy controls. The lipids were ...
... Agriculture lands have low fertilizer retention owing to porosity and irrigation, whereas a significant portion of fertilizer is lost through denitrification, volatilization, surface run-off, and leaching, causing losses of nutrients to air and ground/surface water. Urea fertilizer readily enhances the agricultural yield but also deteriorates the quality of fertile soils. To combat such problems, ...
... We present new 1,2-diborylacetylene derivatives with planar 9-oxa-10-boraanthracene termini, which display excellent stability to allow usual handling and even thermal evaporation for the preparation of thin films for OLEDs, and also undergo typical reactions of alkynes such as the Diels–Alder reaction. ...