U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Subject "liquids" Remove constraint Subject: "liquids"
Start Over

Search

113,409  Search Results

« Previous | 1 - 20 of 113,409 |
Number of results to display per page

Search Results

1. High-throughput subzero-temperature assisted homogenous liquid-liquid extraction for the fast sample preparation of multiple phenolic compounds in propolis

Author:
Yu, Fengjie; Zhang, Jianing; Tao, Yunmin; Du, Chunping; Yang, Wenchao; Chen, Wenbin; Tu, Xijuan
Source:
Journal of chromatography 2021 v.1179 pp. 122823
ISSN:
1570-0232
Subject:
liquid-liquid extraction; liquids,   etc   ; chromatography; labor; propolis; separation; temperature;     Show all 7 Subjects
Abstract:
... In the present study, a high-throughput homogenous liquid-liquid extraction method was developed for fast sample preparation of multiple phenolic compounds in propolis. This method was proposed based on cooling samples array in subzero temperature to induce phase separation of ACN-H₂O extractant. Due to the high-throughput ability, optimization of extraction parameters was rapidly achieved by usin ...
DOI:
10.1016/j.jchromb.2021.122823

2. Selective separation of the homologues of baicalin and baicalein from Scutellaria baicalensis Georgi using a recyclable ionic liquid-based liquid-liquid extraction system

Author:
Wang, Lingqi; Cai, Changyong; Liu, Jiajia; Tan, Zhijian
Source:
Process biochemistry 2021 v.103 pp. 1-8
ISSN:
1359-5113
Subject:
ionic liquids; liquid-liquid extraction,   etc   ; Scutellaria baicalensis; baicalin; temperature; ultrasonics;     Show all 6 Subjects
Abstract:
... To explore convenient and efficient techniques for the extraction and separation of the active ingredients in medicinal plants is still ongoing. As a new class of molten salt, ionic liquids (ILs) are widely used in the extraction of bioactive compounds from plant resources. In this work, the IL-based biphasic system was developed for the extraction and separation of the homologues of baicalin and ...
DOI:
10.1016/j.procbio.2021.02.001

3. Influence of petrochemicals on jet characteristics after coal-water fuel spraying

Author:
Gvozdyakov, Dmitriy; Zenkov, Andrey
Source:
Fuel processing technology 2021 v.218 pp. 106864
ISSN:
0378-3820
Subject:
liquid wastes; liquids,   etc   ; coal; oils; rubber; viscosity;     Show all 6 Subjects
Abstract:
... Application of liquid waste of industrial rubber goods (IRG) and waste car oil (WCO) as an additional component of coal-water fuel (CWF) was experimentally studied. It has been established that efficient introduction of liquid combustible components (LCC) into coal-water fuel prepared on the basis of long-flame coal is possible, if their concentrations in the studied slurries do not exceed 8% by w ...
DOI:
10.1016/j.fuproc.2021.106864

4. SelinfDB: A Database of Selectivity at Infinite Dilution for Liquid–Liquid Extraction

Author:
Klimenko, Kyrylo; Inês, João Miguel; Esperança, José M. S. S.; Aires-de-Sousa, João; Carrera, Gonçalo V. S. M.
Source:
Industrial & engineering chemistry process design and development 2021 v.60 no.22 pp. 8209-8217
ISSN:
1520-5045
Subject:
liquid-liquid extraction,   etc   ; chemistry; databases; process design;     Show all 4 Subjects
Abstract:
... One of the most acute health and environmental concerns nowadays is 3Rs (Reduce, Reuse, and Recycle) of organic solvents. The existing technology used for solvent separation is either expensive or inefficient, particularly in the case of azeotrope separation. Ionic liquids (ILs) have already shown potential in liquid–liquid extraction of organic solvents due to their high structural variability. H ...
DOI:
10.1021/acs.iecr.1c00326

5. Role of Si in the wetting of TiC by Al

Author:
Guo, Rui-Fen; Wang, Ya; Ma, Yun-Hai; Shen, Ping
Source:
Journal of materials science 2021 v.56 no.13 pp. 7791-7798
ISSN:
0022-2461
Subject:
liquid-solid interface; liquids,   etc   ; adsorption; temperature; wettability;     Show all 5 Subjects
Abstract:
... The wettability of TiC by Al alloys plays a key role in the preparation of TiC-reinforced Al matrix composites. Despite some prior work has been reported on this issue, few studies concern the influence of Si. In this work, the effects of Si concentration (0, 7Si, 12Si in wt%) and temperature on the wettability in the Al/TiC system were investigated by a dispensed sessile drop method at 1073–1173  ...
DOI:
10.1007/s10853-020-05496-4

6. Functionalized Ionic Liquid-Crystal Additive for Perovskite Solar Cells with High Efficiency and Excellent Moisture Stability

Author:
Xia, Xuefeng; Peng, Jiayi; Wan, Qixin; Wang, Xiaofeng; Fan, Zhiping; Zhao, Jie; Li, Fan
Source:
ACS applied materials & interfaces 2021 v.13 no.15 pp. 17677-17689
ISSN:
1944-8252
Subject:
ionic liquids; liquid crystals,   etc   ; ammonium; biphenyl; hysteresis;     Show all 5 Subjects
Abstract:
... Organic–inorganic hybrid perovskite solar cells (PSCs) have emerged as a promising candidate for next-generation solar cells. However, the limited stability of PSCs hampers their practical applications. In this work, for the first time, a functionalized π-conjugated ionic liquid crystal (ILC), 4′-(N,N,N-trimethyl ammonium bromide hexyloxy)-4-cyanobiphenyl (6CNBP-N), is developed as a novel chemica ...
DOI:
10.1021/acsami.1c02728

7. Si diffusion across the liquid/solid interface of capillary driven (Al–Si)-KxAlyFz micro-layers

Author:
Wu, Yangyang; Yu, Cheng-Nien; Sekulic, Dusan P.
Source:
Journal of materials science 2021 v.56 no.12 pp. 7681-7697
ISSN:
0022-2461
Subject:
liquid-solid interface; liquids,   etc   ; alloys; aluminum; temperature;     Show all 5 Subjects
Abstract:
... Diffusion is an important phenomenon involved in thermal processing, e.g., a Si diffusion in an (Al–Si)-KₓAlyFz clad alloy during aluminum (Al–Mn) brazing, to be considered in this study. Specifically, the Si migration affects the amount of liquid metal available to form a mating surfaces’ bond and further influences the solid substrate dissolution at the liquid–solid interface between (Al–Si)-KₓA ...
DOI:
10.1007/s10853-020-05689-x

8. Optimizing salting and smoking conditions for the production and preservation of smoked-flavoured tilapia fillets

Author:
Ruiz-Alonso, Sonia Andrea; Girón-Hernández, Lunier Joel; López-Vargas, Jairo Humberto; Muñoz-Ramírez, Adriana Patricia; Simal-Gandara, Jesus
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.138 pp. 110733
ISSN:
0023-6438
Subject:
liquid smoke; liquids,   etc   ; salt concentration; sensory evaluation;     Show all 4 Subjects
Abstract:
... The aim was to identify the salt concentration, treatment time and liquid smoke application technique (addition to brine or spraying) leading to the best possible physical–chemical, microbiological, and sensory properties in smoke-flavoured tilapia fillets that remain stable for at least three months. The fillets obtained by using brine at a concentration of 10 or 7.5% for 4 or 8 h, respectively, ...
DOI:
10.1016/j.lwt.2020.110733

9. On the fluidization/sedimentation velocity of a homogeneous suspension in a low-inertia fluid

Author:
Amin, Ahmad; Girolami, Laurence; Risso, Frédéric
Source:
Powder technology 2021 v.391 pp. 1-10
ISSN:
0032-5910
Subject:
liquids,   etc   ; agitation; technology;     Show all 3 Subjects
Abstract:
... The modeling of the fluidization or sedimentation velocity of a suspension of solid particles is revisited by examining experiments conducted in either a liquid or a gas. A general expression is found in the case of negligible fluid inertia, i.e. at low Reynolds or Archimedes number. It is built as the product of the velocity of an isolated particle by three non-dimensional corrections that each t ...
DOI:
10.1016/j.powtec.2021.05.073

10. Anaerobic digestion of saline waste activated sludge and recovering raw sulfated polysaccharides

Author:
Liu, Jie; Zhang, Zi; Xue, Weiqi; Siriweera, Withanage B.; Chen, Guanghao; Wu, Di
Source:
Bioresource technology 2021 v.335 pp. 125255
ISSN:
0960-8524
Subject:
liquids,   etc   ; anaerobic digestion; polysaccharides;     Show all 3 Subjects
Abstract:
... This study investigated a new bioresource technology of recovering raw chemicals of sulfated polysaccharides (SPs) from the digested saline waste activated sludge (WASₛₐₗᵢₙₑ) that naturally contained 3–30% (w/w) of SPs. Two bench-scale anaerobic digestion (AD) experiments were conducted under mesophilic and thermophilic conditions; the effectiveness of extracting SPs from digested WASₛₐₗᵢₙₑ and th ...
DOI:
10.1016/j.biortech.2021.125255

11. Transport and assembling microparticles via Marangoni flows in heating and cooling modes

Author:
Al-Muzaiqer, M.A.; Ivanova, N.A.; Fliagin, V.M.; Lebedev-Stepanov, P.V.
Source:
Colloids and surfaces 2021 v.621 pp. 126550
ISSN:
0927-7757
Subject:
liquids,   etc   ; heat; microparticles; temperature;     Show all 4 Subjects
Abstract:
... The processes of the particles transfer in liquid media and the creation of structures of required configurations on substrates are of great importance in such areas as materials science, coatings, optoelectronics and biomedical researches. To control of the transfer of large ensembles of particles and dynamically transform of the particle aggregates the precise and flexible methods are strongly r ...
DOI:
10.1016/j.colsurfa.2021.126550

12. A phase-field study of the solidification process coupled with deformation

Author:
Ren, Jian-kun; Chen, Yun; Cao, Yan-fei; Xu, Bin; Sun, Ming-yue; Li, Dian-zhong
Source:
Journal of materials science 2021 v.56 no.21 pp. 12455-12474
ISSN:
0022-2461
Subject:
liquids,   etc   ; deformation; solidification; surveys;     Show all 4 Subjects
Abstract:
... Non-dendritic microstructures are generally obtained in metals after semi-solid deformation (deformation during solidification); however, dendritic growth is preferred without deformation. The fragmentation of dendrites is recognized as an essential contributing factor to non-dendritic microstructures. However, the underlying mechanism of fragmentation needs to be clarified in depth. It is infamou ...
DOI:
10.1007/s10853-021-06026-6

13. Determination of the zeta potential of planar solids in nonpolar liquids

Author:
Prieve, Dennis C.; Yezer, Benjamin A.; Xu, Keyi; Khair, Aditya S.; Schneider, James W.; Sides, Paul J.
Source:
Journal of colloid and interface science 2021 v.592 pp. 271-278
ISSN:
0021-9797
Subject:
liquids,   etc   ; electrophoresis; zeta potential;     Show all 3 Subjects
Abstract:
... ZetaSpin determines zeta potential by measuring the streaming potential generated by rotating a disk-shaped sample about its axis while submerged in the liquid. The apparatus and procedure developed for ZetaSpin in aqueous solutions was adapted for use in highly nonpolar fluids like surfactant-doped alkanes. Perhaps most unexpected is the need for up to 10 min (instead of a fraction of one second ...
DOI:
10.1016/j.jcis.2021.02.044

14. Surface-Mounted Metal–Organic Frameworks: Past, Present, and Future Perspectives

Author:
Semrau, Anna Lisa; Zhou, Zhenyu; Mukherjee, Soumya; Tu, Min; Li, Weijin; Fischer, Roland A.
Source:
Langmuir 2021 v.37 no.23 pp. 6847-6863
ISSN:
1520-5827
Subject:
liquids,   etc   ; electronics; roughness;     Show all 3 Subjects
Abstract:
... Metal–organic frameworks (MOFs) are an emerging class of porous materials composed of organic linkers and metal centers/clusters. The integration of MOFs onto the solid surface as thin films/coatings has spurred great interest, thanks to leveraging control over their morphology (such as size- and shape-regulated crystals) and orientation, flexible processability, and easy recyclability. These aspe ...
DOI:
10.1021/acs.langmuir.1c00245

15. Kinetic modelling and process engineering aspects of biodesulfurization of liquid fuels: Review and analysis

Author:
Malani, Ritesh S.; Batghare, Amit H.; Bhasarkar, Jaykumar B.; Moholkar, Vijayanand S.
Source:
Bioresource technology reports 2021 v.14 pp. 100668
ISSN:
2589-014X
Subject:
liquids,   etc   ; biocatalysts; desulfurization; sulfur;     Show all 4 Subjects
Abstract:
... Biodesulfurization has been explored (as alternative to hydrodesulfurization) for deep desulfurization of liquid fuels. Previous lab-scale research has demonstrated efficacy of numerous microbial strains for desulfurization of heavy sulfur residues (basically benzothiophenes and their derivatives) in liquid fuels. This review has attempted to present an analysis of biodesulfurization literature fr ...
DOI:
10.1016/j.biteb.2021.100668

16. The evolution of numerical methods for predicting the distribution of surfactant in the bubble-scale dynamics of foams

Author:
Cox, Simon; Davies, Tudur
Source:
Current opinion in colloid & interface science 2021 v.53 pp. 101440
ISSN:
1359-0294
Subject:
liquids,   etc   ; foams; rheology; surfactants;     Show all 4 Subjects
Abstract:
... Many numerical methods now exist to simulate the structure and dynamics of surface-tension-dominated aqueous foams at the level of the individual films and the liquid structures where they meet. We review these methods, focusing in particular on bubble-scale simulations of foam rheology. We highlight methods that allow the distribution of surfactant during flow to be taken into account. ...
DOI:
10.1016/j.cocis.2021.101440

17. Open Problems in Wetting Phenomena: Pinning Retention Forces

Author:
Tadmor, Rafael
Source:
Langmuir 2021 v.37 no.21 pp. 6357-6372
ISSN:
1520-5827
Subject:
liquids,   etc   ; adhesion; drugs;     Show all 3 Subjects
Abstract:
... We review existing explanations for drop pinning and the origin of the force required to initiate the sliding of a drop on a solid surface (depinning). Theories that describe these phenomena include de Gennes’, Marmur’s, Furmidge’s, the related Furmidge–Extrand’s, and Tadmor’s theory. These theories are all well cited but generally do not address each other, and usually papers that cite one of the ...
DOI:
10.1021/acs.langmuir.0c02768

18. A Novel MIMO Radar Orthogonal Waveform Design Algorithm Based on Intelligent Ions Motion

Author:
Zhang, Lei; Wen, Fangqing
Source:
Remote Sensing 2021 v.13 no.10
ISSN:
2072-4292
Subject:
liquids,   etc   ; algorithms; autocorrelation; radar;     Show all 4 Subjects
Abstract:
... Orthogonal waveform design is one of the key technologies that affects the detection performance of MIMO radars. Most of the existing methods indirectly tackle this problem as an intractable nonconvex optimization and an NP-hard problem. In this work, we propose a novel waveform design algorithm based on intelligent ions motion optimization (IMO) to directly obtain a set of polyphase codes with go ...
DOI:
10.3390/rs13101968

19. Self-Assembly of 2D Nematic and Random Arrays of Sterically Stabilized Nanoscale Rods with and without Evaporation

Author:
Tago, Makoto; Takasaki, Mihiro; Tokura, Yuki; Oaki, Yuya; Imai, Hiroaki
Source:
Langmuir 2021 v.37 no.21 pp. 6533-6539
ISSN:
1520-5827
Subject:
liquids,   etc   ; calcite; evaporation; nanorods;     Show all 4 Subjects
Abstract:
... The adequate manipulation of nanometer-scale building blocks using dispersion systems is regarded as a fundamental technique to fabricate elaborate microstructures. Although a liquid flow with evaporation is generally regarded as an essential factor for the self-assembly of floating blocks, experimental evidence has not been sufficient to clarify the importance of the flow in the dispersion system ...
DOI:
10.1021/acs.langmuir.1c00789

20. Increasing Volume in Conjugated Polymers to Facilitate Electrical Doping with Phosphomolybdic Acid

Author:
Larrain, Felipe A.; Fuentes-Hernandez, Canek; Chang, Yi-Chien; Rodriguez-Toro, Victor A.; Abraham, Silja; Kippelen, Bernard
Source:
ACS applied materials & interfaces 2021 v.13 no.19 pp. 23260-23267
ISSN:
1944-8252
Subject:
liquids,   etc   ; polymers; solvents;     Show all 3 Subjects
Abstract:
... Molecular p-type electrical dopants have been proven useful to fine-tune the optoelectronic properties of bulk organic semiconductors and their interfaces. Here, the volume in polymer films and its role in solution-based electrical p-type doping using phosphomolybdic acid (PMA) are studied. The polymer film volume was controlled using two approaches. One is based on heating both the PMA solution a ...
DOI:
10.1021/acsami.1c05133