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1. Periodic compression and cavitation induced shear between steam-water two-phase flows for bio-materials degradation

Author:
Khan, A.; Takriff, M. S.; Sanaullah, K.; Zwawi, M.; Algarni, M.; Felemban, B. F.; Bahadar, A.; Shah, A.; Rigit, A. R. H.
Source:
International journal of environmental science and technology 2020 v.17 no.3 pp. 1591-1626
ISSN:
1735-1472
Subject:
analytical methods,   etc   ; compressibility; steam;     Show all 3 Subjects
Abstract:
... Steam–water-induced shear has multiple applications. Steam–water layers-induced periodic shear as a consequence of compression and cavitation has been investigated here. On an experimental basis, CCD-based shadowgraphy along with pressure sensor and laser Doppler anemometry has been applied to measure the spatial extent of compression–cavitation and shear. The superior impact has been found to be ...
DOI:
10.1007/s13762-019-02601-2

2. Re-Evaluating the Conventional Wisdom about Binding Assays

Author:
Wilson, Brandon D.; Soh, H. Tom
Source:
Trends in biochemical sciences 2020 v.45 no.8 pp. 639-649
ISSN:
0968-0004
Subject:
analytical methods,   etc   ; detection limit; dissociation;     Show all 3 Subjects
Abstract:
... Analytical technologies based on binding assays have evolved substantially since their inception nearly 60 years ago, but our conceptual understanding of molecular recognition has not kept pace. Contemporary technologies, such as single-molecule and digital measurements, have challenged, or even rendered obsolete, core concepts behind conventional binding assay design. Here, we explore the fundame ...
DOI:
10.1016/j.tibs.2020.04.005

3. A subsequent procedure for further deciphering weapons after application of the Trace Metal Detection Test (TMDT): Proof of concept

Author:
Xing, Zhuo; Lu, Sijia; Wang, Aihua; Yang, Ruiqin
Source:
Forensic science international 2020 v.310 pp. 110253
ISSN:
0379-0738
Subject:
analytical methods,   etc   ; color; trace elements;     Show all 3 Subjects
Abstract:
... The trace metal detection test (TMDT) is an effective and convenient technique to potentially link perpetrators and metallic weapons by comparing morphological information of developed imprints and suspected weapons. However, metallic items without characteristic patterns and incomplete contact with weapons often lead to inadequate morphological features in developed imprints on hands, resulting i ...
DOI:
10.1016/j.forsciint.2020.110253

4. Bulk Nanobubbles or Not Nanobubbles: That is the Question

Author:
Jadhav, Ananda J.; Barigou, Mostafa
Source:
Langmuir 2020 v.36 no.7 pp. 1699-1708
ISSN:
1520-5827
Subject:
analytical methods,   etc   ; acoustics; mixing; nanobubbles;     Show all 4 Subjects
Abstract:
... Bulk nanobubbles are a novel nanoscale bubble system with unusual properties which challenge our understanding of bubble behavior. Because of their extraordinary longevity, their existence is still not widely accepted as they are often attributed to the presence of supramolecular structures or contaminants. Nonetheless, bulk nanobubbles are attracting increasing attention in the literature, but re ...
DOI:
10.1021/acs.langmuir.9b03532
PubMed:
32040327
PubMed Central:
PMC7146852

5. Mixing of Viscoelastic Fluid Flows in a Coiled Flow Inverter

Author:
Verma, Vikrant; Topalović, Anis; Monechi, Guido; Alsudani, Ali; Nigam, Krishna D. P.; Padding, Johan T.
Source:
Industrial & engineering chemistry process design and development 2020 v.59 no.9 pp. 3854-3864
ISSN:
1520-5045
Subject:
analytical methods,   etc   ; mixing; polymers; viscoelasticity;     Show all 4 Subjects
Abstract:
... Despite having the advantage of a secondary flow pattern in coiled tubes, a very high Dean number is required to induce significant mixing in helical coils, usually implying high shear rates. At very high shear rates, polymer fluids with long molecular chains can be damaged. Therefore, in this study, we investigate the enhancement of mixing of a viscoelastic fluid in a coiled tube at low Dean numb ...
DOI:
10.1021/acs.iecr.9b05142

6. Spatial Dimensions of Stated Preference Valuation in Environmental and Resource Economics: Methods, Trends and Challenges

Author:
Glenk, Klaus; Johnston, Robert J.; Meyerhoff, Jürgen; Sagebiel, Julian
Source:
Environmental and resource economics 2020 v.75 no.2 pp. 215-242
ISSN:
0924-6460
Subject:
analytical methods,   etc   ; economics; statistical models;     Show all 3 Subjects
Abstract:
... An expanding literature addresses spatial dimensions related to the elicitation, estimation, interpretation and aggregation of stated preference (SP) welfare measures. Recognizing the relevance of spatial dimensions for SP welfare analysis and the breadth of associated scholarly work, this article reviews the primary methods, findings, controversies and frontiers in this important area of contempo ...
DOI:
10.1007/s10640-018-00311-w

7. New method for determining the optimum fluid temperature when heating pressure thick-walled components with openings

Author:
Taler, Dawid; Dzierwa, Piotr; Taler, Jan
Source:
Energy 2020 v.200 pp. 117527
ISSN:
0360-5442
Subject:
analytical methods,   etc   ; boilers; cold; heat; steam; temperature;     Show all 6 Subjects
Abstract:
... A new approximate method of optimum heating cylindrical pressure elements weakened by openings was proposed. Optimum variations in fluid temperature when heating the pressure component were determined from the condition that the total circumferential stress at the edge of the opening, resulting from the thermal load and pressure is equal to the allowable stress. The allowable stress is determined ...
DOI:
10.1016/j.energy.2020.117527

8. A new determination method for the permeability tensor of fractured rock masses

Author:
Zheng, Jun; Wang, Xiaohong; Lü, Qing; Sun, Hongyue; Guo, Jichao
Source:
Journal of hydrology 2020 v.585 pp. 124811
ISSN:
0022-1694
Subject:
analytical methods,   etc   ; anisotropy; engineering; hydrology; models; permeability;     Show all 6 Subjects
Abstract:
... Hydraulic characteristics are important fundamental properties of fractured rock masses and involve various geoscience and engineering disciplines. The determination of the permeability tensor is the basic input of the equivalent continuum (EC) model for hydraulic behavior analysis. An analytical method to determine the permeability tensor of fractured rock masses is developed based on the orienta ...
DOI:
10.1016/j.jhydrol.2020.124811

9. Ecosystem health report cards: An overview of frameworks and analytical methodologies

Author:
Logan, Murray; Hu, Ziyuan; Brinkman, Richard; Sun, Song; Sun, Xiaoxia; Schaffelke, Britta
Source:
Ecological indicators 2020 v.113 pp. 105834
ISSN:
1470-160X
Subject:
analytical methods,   etc   ; environmental health; environmental indicators; uncertainty;     Show all 4 Subjects
Abstract:
... Ecosystem health report cards have become increasingly more important tools for communicating environmental state and assessing progress towards management goals. We provide an overview of the major analytical methods underpinning the translation of observed data into robust health indices. In particular, we outline the process of indicator selection, illustrate a variety of index metrics and desc ...
DOI:
10.1016/j.ecolind.2019.105834

10. The search for organic compounds with TMAH thermochemolysis: From Earth analyses to space exploration experiments

Author:
He, Yuanyuan; Buch, Arnaud; Szopa, Cyril; Williams, Amy J.; Millan, Maëva; Guzman, Melissa; Freissinet, Caroline; Malespin, Charles; Glavin, Daniel P.; Eigenbrode, Jennifer L.; Coscia, David; Teinturier, Samuel; Pin lu,; Cabane, M.; Mahaffy, Paul R.
Source:
Trends in analytical chemistry 2020 v.127 pp. 115896
ISSN:
0165-9936
Subject:
analytical methods,   etc   ; methylation; quantitative analysis; tetramethylammonium compounds;     Show all 4 Subjects
Abstract:
... Tetramethylammonium hydroxide (TMAH) is one of the most popular methylation reagents that have been increasingly used for the detection of organic compounds within a wide range of samples, such as soil, coal, lacquer, lignin, polymers and for in situ analysis of solid samples by space experiments. The analytical methods and instruments, experimental conditions, and the qualitative and quantitative ...
DOI:
10.1016/j.trac.2020.115896

11. What’s novel in the new Eurachem guide on uncertainty from sampling?

Author:
Analytical Methods Committee, AMCTB No. 96,
Source:
Analytical methods 2020 v.12 no.17 pp. 2295-2297
ISSN:
1759-9679
Subject:
analytical methods,   etc   ; empirical research; mathematical models; uncertainty;     Show all 4 Subjects
Abstract:
... A second edition of the Eurachem guide, Measurement uncertainty arising from sampling (UfS),¹ has recently been published (Fig. 1), in collaboration with CITAC, Eurolab, Nordtest and the Royal Society of Chemistry’s Analytical Methods Committee. This Technical Brief aims to explain how this new second edition differs significantly from the first edition that was published in 2007. The stated objec ...
DOI:
10.1039/d0ay90051f

12. An examination of the building pressure cycling technique as a tool in vapor intrusion investigations with analytical simulations

Author:
Yao, Yijun; Zuo, Jianping; Luo, Jian; Chen, Qiang; Ström, Jonathan; Suuberg, Eric
Source:
Journal of hazardous materials 2020 v.389 pp. 121915
ISSN:
0304-3894
Subject:
analytical methods,   etc   ; polluted soils; soil air; vapors;     Show all 4 Subjects
Abstract:
... The building pressure cycling (BPC) technique has been developed and applied by vapor intrusion (VI) site investigators to obtain estimates of reasonable maximum exposures and to identify possible background sources of contaminant vapors. This method assumes that by application of consistent indoor depressurization one can increase the average contaminated soil gas entry rate into a building of in ...
DOI:
10.1016/j.jhazmat.2019.121915
PubMed:
31882341
PubMed Central:
PMC7082193

13. Detection of the technical and tactical motion of the scorable movements in taekwondo

Author:
Gutiérrez-Santiago, A.; Pereira-Rodríguez, R.; Prieto-Lage, I.
Source:
Physiology & behavior 2020 v.217 pp. 112813
ISSN:
0031-9384
Subject:
analytical methods,   etc   ; human resources; males; statistics;     Show all 4 Subjects
Abstract:
... The objective of the study is to discover and analyze the patterns of the technical and tactical moves that score in combat in taekwondo. We analyzed 209 moves that could be scored (male category, <68 kg, international scene) employing different complementary analytical techniques: analyzing traditional statistics, detection of T-Patterns, consecutive delays and polar coordinates. The existing stu ...
DOI:
10.1016/j.physbeh.2020.112813

14. Efficient analytical upscaling method for elliptic equations in three-dimensional heterogeneous anisotropic media

Author:
Liao, Qinzhuo; Lei, Gang; Wei, Zhijie; Zhang, Dongxiao; Patil, Shirish
Source:
Journal of hydrology 2020 v.583 pp. 124560
ISSN:
0022-1694
Subject:
analytical methods,   etc   ; anisotropy; equations; geometry; hydrology; variance;     Show all 6 Subjects
Abstract:
... We propose an efficient analytical upscaling method to compute the equivalent conductivity tensor for elliptic equations in three-dimensional space. Our approach uses perturbation expansion and Fourier analysis, and considers heterogeneity, anisotropy and geometry of coarse gridblocks. Through low-order approximation, the derived analytical solution accurately approximates the central-difference n ...
DOI:
10.1016/j.jhydrol.2020.124560

15. The dead cell ratio of bacteria in sludge flocs as an indicator of sludge reduction in sludge ozone process

Author:
Hashimoto, Kurumi; Marushima, Toru; Nakai, Satoshi; Nishijima, Wataru; Motoshige, Hiroshi
Source:
Biochemical engineering journal 2020 v.154 pp. 107427
ISSN:
1369-703X
Subject:
analytical methods,   etc   ; death; ozone; propidium; sludge; staining;     Show all 6 Subjects
Abstract:
... A quantitative analytical method to determine the dead cell ratio of bacteria (death ratio) in sludge was developed for evaluating technologies and determining a sufficient amount of ozone for the sludge ozone process. The method with SYTO9 and propidium iodide as staining agents for live and dead cells, respectively, was optimized. The death ratio developed in this study could successfully predic ...
DOI:
10.1016/j.bej.2019.107427

16. The edge of reason: reporting and inference near the detection limit

Author:
Analytical Methods Committee AMCTB No. 92,
Source:
Analytical methods 2020 v.12 no.3 pp. 401-403
ISSN:
1759-9679
Subject:
analytical methods,   etc   ; chemical species; detection limit;     Show all 3 Subjects
Abstract:
... Although the general concept of a detection limit as a lower practical operating limit for an analytical method is widely understood, the precise interpretation of results near the IUPAC limit of detection is rarely as well understood or implemented. It is important to distinguish between statements about the analytical result, which is known, and inferences about the true value, which are not kno ...
DOI:
10.1039/c9ay90188d

17. Correction: Development of an ISFET-based enzyme assay for p-diphenol oxidase from locally isolated fungus Schizophyllum commune MF-O5

Author:
Faheem, Muhammad; Khalid, Zafar Mahmood; Shabbir, Muhammad Imran; Ahmad, Bashir; Jogezai, Naqeeb Ullah; Shaukat, Uzma; Ahmad, Bilal; Ghani, Abdul; Ullah, Hanif; Shah, Muhammad Musaddiq; Shah, Waseem; Riaz, Muhammad; Iqbal, Anwar; Basheir, Muhammad Mudassir; Mehmood, Rashid; Imran Bokhari, Syed Ali
Source:
Analytical methods 2020 v.12 no.2 pp. 218
ISSN:
1759-9679
Subject:
analytical methods,   etc   ; Schizophyllum commune; enzymes; fungi;     Show all 4 Subjects
Abstract:
... Correction for ‘Development of an ISFET-based enzyme assay for p-diphenol oxidase from locally isolated fungus Schizophyllum commune MF-O5’ by Muhammad Faheem et al., Anal. Methods, 2019, 11, 5893–5900. ...
DOI:
10.1039/c9ay90192b

18. Validation requirements of screening analytical methods based on scenario-specified applicability indicators

Author:
Cuadros-Rodríguez, Luis; Valverde-Som, Lucía; Jiménez-Carvelo, Ana M.; Delgado-Aguilar, Miriam
Source:
Trends in analytical chemistry 2020 v.122 pp. 115705
ISSN:
0165-9936
Subject:
analytical methods,   etc   ; marketing; prediction; screening; stakeholders; trade;     Show all 6 Subjects
Abstract:
... The performance of screening methods, as for any qualitative analytical method, is characterised by four parameters which define the success (sensitivity and specificity) and the prediction (predictive values) method capabilities regarding the objects/samples belonging to each of the classes or categories. But establishing a priori the critical values of these parameters to be used as validation r ...
DOI:
10.1016/j.trac.2019.115705

19. Best Practices for Characterization of Magnetic Nanoparticles for Biomedical Applications

Author:
Sandler, Sarah E.; Fellows, Benjamin; Mefford, O. Thompson
Source:
Analytical chemistry 2019 v.91 no.22 pp. 14159-14169
ISSN:
1520-6882
Subject:
analytical methods,   etc   ; magnetism; nanoparticles;     Show all 3 Subjects
Abstract:
... The use of magnetic nanoparticles in biomedical applications provides are a wealth of opportunities. Nonetheless, to truly understand the interactions of these materials in biological media, detailed characterization is necessary with these complex systems. This Feature highlights some “best practices” in the analytical techniques and challenges in the measurement of the properties of these materi ...
DOI:
10.1021/acs.analchem.9b03518

20. The role of accreditation in ensuring sampling quality

Author:
Analytical Methods Committee AMCTB No. 90,
Source:
Analytical methods 2019 v.11 no.26 pp. 3358-3360
ISSN:
1759-9679
Subject:
analytical methods,   etc   ; certification; samplers;     Show all 3 Subjects
Abstract:
... Accreditation has proved effective in ensuring the quality of analytical measurements but is now increasingly being applied to primary sampling, as the first part of the measurement process. Several international standards relevant to accreditation of sampling are available, either for organisations undertaking the sampling (ISO/IEC 17025 or 17020), or for the certification of the sampler (i.e., t ...
DOI:
10.1039/c9ay90095k