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1. The microstructure dependence of drawability in ferritic, pearlitic, and TWIP steels during wire drawing

Author:
Hwang, Joong-Ki
Source:
Journal of materials science 2019 v.54 no.11 pp. 8743-8759
ISSN:
0022-2461
Subject:
surface area,   etc   ; microstructure; plastic deformation; plasticity; steel;     Show all 5 Subjects
Abstract:
... The effects of microstructure and deformation mode on the formability have been investigated to understand and improve formability in twinning-induced plasticity (TWIP) steel. The tensile and wire drawing behaviors were compared using the ferritic, pearlitic, and TWIP steels. The drawability of ferritic and pearlitic steels was quite good in spite of the low tensile elongation of hot-rolled state, ...
DOI:
10.1007/s10853-019-03499-4

2. Thin film microextraction: Towards faster and more sensitive microextraction

Author:
Olcer, Yekta Arya; Tascon, Marcos; Eroglu, Ahmet E.; Boyacı, Ezel
Source:
Trends in analytical chemistry 2019 v.113 pp. 93-101
ISSN:
0165-9936
Subject:
surface area,   etc   ; coatings; geometry; solid phase microextraction;     Show all 4 Subjects
Abstract:
... Thin film microextraction (TFME) is an analytical tool that has been proven to be suitable for integrated sampling and sample preparation of a wide variety of routine and on-site applications. Compared to the traditional microextraction techniques, the most important advantage of TFME is its enhanced sensitivity due to the relatively larger extractive phase spread over a larger surface area. The t ...
DOI:
10.1016/j.trac.2019.01.022

3. Quantification is more than counting: Actions required to accurately quantify and report isolated marine microplastics

Author:
Rivers, Molly L.; Gwinnett, Claire; Woodall, Lucy C.
Source:
Marine pollution bulletin 2019 v.139 pp. 100-104
ISSN:
0025-326X
Subject:
surface area,   etc   ; data collection; microplastics; water pollution;     Show all 4 Subjects
Abstract:
... Research on marine microplastics continues to increase in popularity, with a large number of studies being published every year. However, with this plethora of research comes the need for a standardised approach to quantification and analysis procedures in order to produce comparative assessments. Using data collected from neuston nets in 2016, parameters for quantifying microplastics were compare ...
DOI:
10.1016/j.marpolbul.2018.12.024

4. Transport of oxygen into granitic rocks: Role of physical and mineralogical heterogeneity

Author:
Trinchero, Paolo; Sidborn, Magnus; Puigdomenech, Ignasi; Svensson, Urban; Ebrahimi, Hedieh; Molinero, Jorge; Gylling, Björn; Bosbach, Dirk; Deissmann, Guido
Source:
Journal of contaminant hydrology 2019 v.220 pp. 108-118
ISSN:
0169-7722
Subject:
surface area,   etc   ; biotite; oxygen; radionuclides; rocks; snowmelt;     Show all 6 Subjects
Abstract:
... The rock matrix of granites is expected to be an important buffer against the dispersion of contaminants, e.g. radionuclides, and against the ingress of oxygenated glacial meltwater. The influence of matrix heterogeneity on O2 diffusive transport is assessed here by means of numerical experiments based on a micro-Discrete Fracture Network (micro-DFN) representation of the diffusion-available pore ...
DOI:
10.1016/j.jconhyd.2018.12.001

5. Surface Conduction in a Microchannel

Author:
Sohn, Seoyun; Cho, Inhee; Kwon, Soonhyun; Lee, Hyomin; Kim, Sung Jae
Source:
Langmuir 2018 v.34 no.26 pp. 7916-7921
ISSN:
1520-5827
Subject:
surface area,   etc   ; diodes; guidelines;     Show all 3 Subjects
Abstract:
... Ionic current through a microchannel has drawn significant attention not only for fundamental electrokinetic research but also for the development of novel micro/nanofluidic applications. Among various ion transport mechanisms, surface conduction, which is a predominant mechanism in micro/nanofluidic devices, has been theoretically characterized based on two-dimensional analysis. However, its infi ...
DOI:
10.1021/acs.langmuir.8b00932

6. Fabrication of β-phase AgI and Bi2O3 co-decorated Bi2O2CO3 heterojunctions with enhanced photocatalytic performance

Author:
Wang, Qi; Zhang, Chenlu; Wu, Hong; Gao, Qiaoyuan; Duan, Ran; Chen, Chuncheng
Source:
Journal of colloid and interface science 2019 v.547 pp. 1-13
ISSN:
0021-9797
Subject:
surface area,   etc   ; catalysts; chromium; electric current; phenol; photocatalysis; temperature;     Show all 7 Subjects
Abstract:
... Bi2O2CO3 was co-decorated by β-phase AgI and Bi2O3 forming visible-light-active AgI(β)/Bi2O3(β)-Bi2O2CO3 composite via simply calcining AgI/Bi2O2CO3. The calcination temperature and time played vital role in regulating the structure as well as photocatalytic performance. Optimal AgI(β)/Bi2O3(β)-Bi2O2CO3 was obtained after 325 ◦C calcination for 2 h with 5% AgI. The ratio of Bi2O3 to Bi2O2CO3 was e ...
DOI:
10.1016/j.jcis.2019.03.088

7. Facile construction of hollow carbon nanosphere-interconnected network for advanced sodium-ion battery anode

Author:
Zhang, Weicai; Lan, Chaowen; Xie, Xiuhong; Cao, Qiaoying; Zheng, Mingtao; Dong, Hanwu; Hu, Hang; Xiao, Yong; Liu, Yingliang; Liang, Yeru
Source:
Journal of colloid and interface science 2019 v.546 pp. 53-59
ISSN:
0021-9797
Subject:
surface area,   etc   ; anodes; batteries; carbon; energy; nanospheres; sodium;     Show all 7 Subjects
Abstract:
... Sodium-ion batteries are promising next-generation electrical-energy-storage devices due to the relative low cost, and the natural abundance of sodium resources. Yet developmental anodes in sodium-ion batteries such as carbonaceous materials have adagio sodium ion diffusion kinetics, huge volume expansion, poor rate performance and cycle stability. Herein, we report a high-performance sodium ion s ...
DOI:
10.1016/j.jcis.2019.03.043

8. On the mechanism of payload release from liposomes bound to temperature-sensitive microgel particles

Author:
Ivashkov, Oleg V.; Yakimova, Tamara M.; Evtushenko, Evgeniy G.; Gelissen, Arjan P.H.; Plamper, Felix A.; Richtering, Walter; Yaroslavov, Alexander A.
Source:
Colloids and surfaces 2019 v.570 pp. 396-402
ISSN:
0927-7757
Subject:
surface area,   etc   ; antibiotics; catalysts; doxorubicin; drug carriers; microgels; polymers; thermosensitivity;     Show all 8 Subjects
Abstract:
... Thermosensitive N-isopropylacrylamide based cationic microgels (μG) were synthesized and complexed with anionic liposomes containing encapsulated antitumor antibiotic Doxorubicin (Dox). Compositions of the resulting complexes, in terms of a liposome-to-μG number ratio N, varied from N = 0.5 to a saturated complex with N = 30 where the surface of μG particles is fully covered with liposomes. The mi ...
DOI:
10.1016/j.colsurfa.2019.02.069

9. Electromagnetic shielding property of carbon fiber felt made of different types of short-chopped carbon fibers

Author:
Liang, Jiyong; Gu, Yizhuo; Bai, Ming; Wang, Shaokai; Li, Min; Zhang, Zuoguang
Source:
Composites 2019 v.121 pp. 289-298
ISSN:
1359-835X
Subject:
surface area,   etc   ; carbon fibers; composite materials; electromagnetic interference; mixing; polyacrylonitrile;     Show all 6 Subjects
Abstract:
... Three types of short-chopped carbon fibers (SCF), including polyacrylonitrile based T300, M40J and pitch-based XN-90-60s, were used to prepare SCF felts by wet-laid method with hydroxyethylcellulos as adhesive. Electromagnetic interference shielding effectiveness (EMI SE) in X band was investigated using waveguide method. It is found that stirring treatment leads to higher damaging degree of XN90 ...
DOI:
10.1016/j.compositesa.2019.03.037

10. Optimal sizing of roof gutters and hopper for rainwater harvesting

Author:
Nnaji, Chidozie Charles; Tenebe, Imokhai Theophilus; Emenike, PraiseGod Chidozie
Source:
Environmental monitoring and assessment 2019 v.191 no.6 pp. 338
ISSN:
0167-6369
Subject:
surface area,   etc   ; equations; rain; wastes; water harvesting; water shortages;     Show all 6 Subjects
Abstract:
... Bernoulli’s equation was applied to a section of hopper collector to determine the appropriate dimensions of the hopper for rainwater harvesting. Also, the hopper surface area (SFA) for a given volume was minimized by differentiating it in relation to the slant angle (SA). Combining the rational formula—Manning’s equation and the best hydraulic section criteria—expressions were obtained for the op ...
DOI:
10.1007/s10661-019-7434-z

11. New bio-inspired design for high-performance and highly robust La0.6Sr0.4Co0.2Fe0.8O3-δ membranes for oxygen permeation

Author:
Li, Tao; Kamhangdatepon, Tatiya; Wang, Bo; Hartley, Unalome Wetwatana; Li, Kang
Source:
Journal of membrane science 2019 v.578 pp. 203-208
ISSN:
0376-7388
Subject:
surface area,   etc   ; air; artificial membranes; ceramics; coagulants; geometry; oxygen; permeability;     Show all 8 Subjects
Abstract:
... Ceramic-based oxygen permeation membranes (OPM) are considered to be promising for the separation of oxygen from air. However, state-of-art membrane designs are unable to deliver satisfactory performances in terms of permeation flux, mechanical/chemical stability and membrane surface area. In this study, a new bio-inspired design has been successfully introduced in the micro-monolithic membranes m ...
DOI:
10.1016/j.memsci.2019.02.042

12. Properties of mono- and poly-disperse spheres random pack media

Author:
Markicevic, B.
Source:
Powder technology 2019 v.350 pp. 154-161
ISSN:
0032-5910
Subject:
surface area,   etc   ; equations; permeability; porosity; porous media; powders; prediction;     Show all 7 Subjects
Abstract:
... A porous medium consisting of randomly packed spheres is generated and the fluid flow through such medium is solved numerically. The solution is used to generate both media consisting of mono- and poly-disperse spheres, and to predict and compare media properties: porosity, specific surface area and permeability. For poly-disperse media, five different distributions are used with spheres minimum t ...
DOI:
10.1016/j.powtec.2019.03.048

13. Enhanced photocatalytic degradation of RhB by two-dimensional composite photocatalyst

Author:
Chen, Ying; Li, Jing; Zhai, BoYing; Liang, YuNing
Source:
Colloids and surfaces 2019 v.568 pp. 429-435
ISSN:
0927-7757
Subject:
surface area,   etc   ; colloids; energy; optical properties; photocatalysis; photocatalysts; ultrasonics;     Show all 7 Subjects
Abstract:
... In this paper, A novel two-dimensional photocatalyst BiOBr/GO/MOF-5 were successfully synthesized via a facile ultrasonic assisted solvothermal method. Then, the structures, morphologies, optical properties, and photocatalytic performances were investigated in detail. The results showed that BiOBr/GO/MOF-5 ternary photocatalyst system exhibited significantly enhanced photocatalytic performance as ...
DOI:
10.1016/j.colsurfa.2019.02.007

14. Electrochemical performance of Sb2S3/CNT free-standing flexible anode for Li-ion batteries

Author:
Elizabeth, Indu; Singh, Bhanu Pratap; Gopukumar, Sukumaran
Source:
Journal of materials science 2019 v.54 no.9 pp. 7110-7118
ISSN:
0022-2461
Subject:
surface area,   etc   ; anodes; buffers; electrochemistry; ethylene; filtration; graphene; lithium batteries;     Show all 8 Subjects
Abstract:
... Sb₂S₃/CNT composite has been synthesized through ethylene glycol-mediated solvothermal process, and binderless, free-standing, flexible anode is prepared from the composite through vacuum filtration technique. The 1-D rod-like structure of Sb₂S₃ prevents self-agglomeration and exhibits well-guided charge–discharge kinetics and high surface area enhancing their electrochemical performance in Li-ion ...
DOI:
10.1007/s10853-018-03275-w

15. Linking internal resistance with design and operation decisions in microbial electrolysis cells

Author:
Miller, Andrew; Singh, Lakhveer; Wang, Luguang; Liu, Hong
Source:
Environment international 2019 v.126 pp. 611-618
ISSN:
0160-4120
Subject:
surface area,   etc   ; anodes; carbon; cathodes; microbial electrolysis cells; prediction;     Show all 6 Subjects
Abstract:
... The distribution of internal resistance in most microbial electrolysis cells (MECs) remains unclear, which hinders the optimization and scaling up of the technology. In this study, a method for quantifying the effects of design and operation decisions on internal resistance was applied for the first time to MECs. In typical single chamber MECs with carbon cloth electrodes, the internal resistance ...
DOI:
10.1016/j.envint.2019.02.056

16. Preprophase-band positioning in isolated tobacco BY-2 cells: evidence for a principal role of nucleus-cell cortex interaction in default division-plane selection

Author:
Asada, Tetsuhiro
Source:
Protoplasma 2019 v.256 no.3 pp. 721-729
ISSN:
0033-183X
Subject:
surface area,   etc   ; cell walls; cortex; microtubules; models; tobacco;     Show all 6 Subjects
Abstract:
... In some plant tissue types, new cross-walls tend to divide parental cells equally and to meet parental walls at right angles while tending to have minimal surface area. A previously proposed model that I call the reach model suggests that this feature originates from the tendency of premitotic division-plane selection or of the positioning of microtubule preprophase bands (PPBs) which predict the ...
DOI:
10.1007/s00709-018-01331-5

17. An ion-conducting SnS–SnS₂ hybrid coating for commercial activated carbons enabling their use as high performance anodes for sodium-ion batteries

Author:
Zhang, Si-Wei; Lv, Wei; Qiu, Dong; Cao, Tengfei; Zhang, Jun; Lin, Qiaowei; Chen, Xiangrong; He, Yan-Bing; Kang, Feiyu; Yang, Quan-Hong
Source:
Journal of materials chemistry A 2019 v.7 no.17 pp. 10761-10768
ISSN:
2050-7496
Subject:
surface area,   etc   ; activated carbon; anodes; batteries; chemistry; coatings; ions; sodium;     Show all 8 Subjects
Abstract:
... Porous carbons with a high specific surface area (SSA) have been widely investigated as anodes for sodium-ion batteries (SIBs). Despite their high initial capacity, they are not ideal anodes due to the very low initial coulombic efficiency (ICE) derived from the uncontrollable irreversible reactions of the large carbon surface with the electrolyte resulting in SEI formation. In this study, an ion- ...
DOI:
10.1039/c9ta00599d

18. Fabrication of hollow pompon-like Co₃O₄ nanostructures with rich defects and high-index facet exposure for enhanced oxygen evolution catalysis

Author:
Zhang, Chunmei; Zheng, Fuqin; Zhang, Ziwei; Xiang, Dong; Cheng, Chunfeng; Zhuang, Zhihua; Li, Ping; Li, Xiaokun; Chen, Wei
Source:
Journal of materials chemistry A 2019 v.7 no.15 pp. 9059-9067
ISSN:
2050-7496
Subject:
surface area,   etc   ; catalytic activity; cobalt oxide; nanowires; oxygen; oxygen production;     Show all 6 Subjects
Abstract:
... In recent years, developing effective methods to enhance the properties of Co₃O₄ nanomaterials for the oxygen evolution reaction (OER) has received considerable attention. However, the reported methods focused on fabricating nanostructures with one of the catalytically favorable structural factors, such as exposed facets, oxygen vacancies, morphology, or size. Herein, a unique method was developed ...
DOI:
10.1039/c9ta00330d

19. Synthesis of a ZIF-derived hollow yolk–shell Co@CN catalyst for the oxidative esterification of 5-hydroxymethylfurfural

Author:
Sun, Kang-kang; Chen, Shu-jie; Li, Ze-lin; Lu, Guo-ping; Cai, Chun
Source:
Green chemistry 2019 v.21 no.7 pp. 1602-1608
ISSN:
1463-9270
Subject:
surface area,   etc   ; catalysts; catalytic activity; esterification; green chemistry; hydroxymethylfurfural;     Show all 6 Subjects
Abstract:
... A newly developed template protection-sacrifice (TPS) strategy is developed for the synthesis of hollow yolk–shell Co@CN with a large surface area and high pore volume. The catalyst exhibits excellent catalytic efficiency in base-free oxidative esterification of 5-hydroxymethylfurfural under mild conditions with excellent selectivity at a high concentration (2 M) of the reactant. ...
DOI:
10.1039/c8gc03868f

20. Recent strategies to enhance the performance of polymer monoliths for analytical separations

Author:
Maya, Fernando; Paull, Brett
Source:
Journal of separation science 2019 v.42 no.8 pp. 1564-1576
ISSN:
1615-9306
Subject:
surface area,   etc   ; carbon; chromatography; coordination polymers; hydroxides; nanodiamonds; photons;     Show all 7 Subjects
Abstract:
... This review summarizes recent developments made in the incorporation of functional materials into organic polymer monoliths, together with new monolithic forms and formats, which enhance their application as supports and stationary phase materials for sample preparation and chromatographic separations. While polymer monoliths are well‐known supports for the separation of large molecules, recent de ...
DOI:
10.1002/jssc.201801126