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chemicalcomposition, etc ; COVID-19 infection; air; business enterprises; coal; combustion; humidity; nitrogen; sulfur; vehicles (equipment); wind speed; China; Show all 12 Subjects
Abstract:
... Based on the online and membrane sampling data of Yuncheng from January 1st to February 12th, 2020, the formation mechanism of haze under the dual influence of Spring Festival and COVID-19 (Corona Virus Disease) was analyzed. Atmospheric capacity, chemical composition, secondary transformation, source apportionment, backward trajectory, pollution space and enterprise distribution were studied. Low ...
Denise Sguarizi-Antonio; Kamylla Balbuena Michelutti; Eva Ramona Pereira Soares; Nathan Rodrigues Batista; Sidnei Eduardo Lima-Junior; Claudia Andrea Lima Cardoso; Viviana de Oliveira Torres; William Fernando Antonialli-Junior
... Social wasps build their nests using plant material and can thereby occupy different types of habitats. The organization of their colonies is generally based on complex communication systems that include chemical compounds of the cuticle that are shared with the material of their nests thus contributing to the specific chemical signature of their colony. These compounds can vary by environmental f ...
... Chemical composition and architecture are two key factors that control the physical and material properties of polymers. Some of the more unusual and intriguing polymer architectures are the polycatenanes, which are a class of polymers that contain mechanically interlocked rings. Since the development of high yielding synthetic routes to catenanes, there has been an interest in accessing their pol ...
... Environment-friendly ceramic capacitors with outstanding energy storage properties (ESPs) are greatly desired for advanced pulsed power systems. However, it is still a great challenge to develop lead-free dielectric materials with simultaneous excellent recoverable energy storage density (Wᵣₑc) and energy storage efficiency (η). In the present work, a synergistic optimization strategy with regard ...
chemicalcomposition, etc ; acrylamides; digestion; potatoes; toxicity; Show all 5 Subjects
Abstract:
... Presence of thermal processing contaminant in foods has long been taking attention due to their probable toxic effects. Roasting coffee beans at very high temperatures creates major changes in the chemical composition and in the physical properties. Coffee beverages are important contributor to the exposure to acrylamide following potato and cereal products. This review describes the changes durin ...
chemicalcomposition, etc ; Elaeagnus; Hippophae rhamnoides; hemostasis; Show all 4 Subjects
Abstract:
... Numerous studies on the chemical composition of various organs of sea buckthorn (Elaeagnus rhamnoides (L.) A. Nelson) have found the plant to be a rich source of vitamins, phenolic compounds, amino acids, fatty acids, and micro- and macro-elements. Furthermore, other studies on preparations from various organs have found them to have significant anti-cancer, anti-ulcer, and hepatoprotective proper ...
chemicalcomposition, etc ; Cambrian period; fossils; skeleton; Show all 4 Subjects
Abstract:
... The chemical composition of sponge spicules was studied based on the debatable fossil early Cambrian sponge Lenica unica Gorjansky, 1977 from the Siberian Platform. The study has shown that the skeleton of this giant sponge is built of large monaxon megascleres that are a natural carbonate–silica–organic compound with a complicated chemical composition. The data we obtained confirm that the earlie ...
chemicalcomposition, etc ; environment; lakes; morphometry; paddies; water; Show all 6 Subjects
Abstract:
... The article presents the results of studies of the level regime of Lake Balkhash, which has a characteristic, consisting in the change in the average lake horizon, the changes in the magnitudes of the seasonal and inter-annual amplitudes of the levels, as well as their annual and long-term ones. All this involves the change in the lake table area and its outline on the map. The results of full-sca ...
chemicalcomposition, etc ; climate; human health; particulates; China; Show all 5 Subjects
Abstract:
... Atmospheric nanoparticles are crucial components contributing to fine particulate matter (PM₂.₅), and therefore have significant effects on visibility, climate, and human health. Due to the unique role of atmospheric nanoparticles during the evolution process from gas-phase molecules to larger particles, a number of sophisticated experimental techniques have been developed and employed for online ...
chemicalcomposition, etc ; Sapindales; epicuticular wax; hydrophobicity; transpiration; triterpenoids; Show all 6 Subjects
Abstract:
... Cuticular waxes play an important role in plant survival in terrestrial environments. They are part of the cuticle and form a hydrophobic barrier associated with a decline in water loss through cuticular transpiration. Data on the chemical and morphological composition of cuticular waxes in Sapindales have been collected for more than 5th years. The present review compiles the data published for t ...
chemicalcomposition, etc ; absorption; carbon; carbon nanotubes; microstructure; pyrolysis; Show all 6 Subjects
Abstract:
... The construction of special three-dimensional microstructure is becoming an extremely fascinating approach to upgrade the electromagnetic properties of carbon-based microwave absorption materials (MAMs) recently. Herein, we have demonstrated the successful fabrication of a series of carbon nanotubes (CNTs)@Ni/C foams (CNCFs) through two-step pyrolysis processes. It is found that the loading amount ...
chemicalcomposition, etc ; air; coordination polymers; filtration; nanofibers; polyacrylonitrile; Show all 6 Subjects
Abstract:
... Integrating metal–organic frameworks (MOFs) into electrospun nanofiber filters has become an effective method for improving particle filtration efficiency. This study hypothesized that there is an optimal amount of MOFs that can be integrated into electrospun nanofiber filters to achieve the maximum particle removal efficiency while minimizing the corresponding MOF synthesis time. To test the hypo ...
chemicalcomposition, etc ; alcohols; brandy; sensory evaluation; temperature; wood; Show all 6 Subjects
Abstract:
... Toasting is a key step in the barrel-making process. It plays an important role in the breakdown of oak wood compounds and thus influences the chemical composition and organoleptic properties of wines and brandies. However, the effect of toasting on distilled spirit quality has not yet been extensively studied. The objective of this study was therefore to study the impact of toasting on cognac eau ...
chemicalcomposition, etc ; fractal dimensions; gel chromatography; molecular weight; Show all 4 Subjects
Abstract:
... Now in its sixth decade, size-exclusion chromatography (SEC) remains the premier method by which to determine the molar mass averages and distributions of natural and synthetic macromolecules. Aided by its coupling to a variety and multiplicity of detectors, it has also shown its ability to characterize a host of other physicochemical properties, such as branching, chemical, and sequence length he ...
Anderson B. Moro; Yuri R. Montanholi; Diego B. Galvani; Pedro Bertemes-Filho; Rafael S. Venturini; Aliei M. Menegon; Juliene S. Rosa; Leila P. da Silva; Cleber C. Pires
chemicalcomposition, etc ; bioelectrical impedance; carcass composition; neck; tissues; Show all 5 Subjects
Abstract:
... This study evaluated the potential of segmental bioimpedance analysis (SBIA) to estimate the composition of retail cuts and their predictability to infer on the carcass composition in lambs. Leg, rib, shoulder, neck, and loin from thirty-one lamb carcasses were evaluated. A single-frequency bioelectrical impedance analyzer at 50 kHz was used to perform measurements. The models for estimating soft ...
chemicalcomposition, etc ; crosslinking; liquids; polymerization; polymers; three-dimensional printing; Show all 6 Subjects
Abstract:
... 3D printing provides facile access to geometrically complex materials. However, these materials have intrinsically linked bulk and interfacial properties dependent on the chemical composition of the resin. In the current work, 3D printed materials are post-functionalized using the 3D printer hardware via a secondary surface-initiated polymerization process, thus providing independent control over ...
chemicalcomposition, etc ; Brassicaceae; anthocyanins; bioavailability; human nutrition; nutritive value; Show all 6 Subjects
Abstract:
... Brassicaceae family includes various economic plants for edible or ornamental purposes. Brassicaceae vegetables are considered to be a major part of human diet as sources rich in phytochemicals. Among them, anthocyanins provide red to blue colors in Brassicaceae plants and as well have nutritional value and pharmaceutical potential. This review aims to summarize the chemical composition, stability ...
chemicalcomposition, etc ; Ocimum basilicum; antioxidants; flavonoids; maceration; radiation resistance; Show all 6 Subjects
Abstract:
... Several species of the genus Ocimum are traditionally known and consumed by the population, but studies on aqueous extract composition are restricted to preparations by infusion. The aim of this study was to compare three different aqueous extractive methods (decoction, infusion, and maceration) of the leaves from Ocimum basilicum, O. gratissimum, and O. kilimandscharicum, using their chemical com ...
chemicalcomposition, etc ; Vitis; agriculture; cultivars; grapes; odors; viticulture; Serbia; Show all 8 Subjects
Abstract:
... The Serbian fungus-tolerant grapevine cultivar ‘Morava’ has been recognized by both wine producers and consumers, resulting in increased areas devoted to the cultivar. ‘Morava’ (‘SK 77-7/4’ x ‘Bianca’, released in Sremski Karlovci) is a popular cultivar for white wines, particularly in the central part of Serbia, because of the interesting aroma profile of its wine. The objective of this research ...
chemicalcomposition, etc ; acidity; adsorption; biomimetics; energy; europium; hydroxyapatite; luminescence; Show all 8 Subjects
Abstract:
... Three luminescent Eu-containing phosphate materials (Ca-doped europium phosphate monohydrate, Eu-doped carbonated-apatite, and europium phosphate monohydrate) were prepared and analyzed on the level of bulk structure and surface properties and compared to the biomimetic non-luminescent counterpart hydroxyapatite. Europium-containing phosphate materials exhibited nanosized dimensions but different ...