Log in

Relevant bibliographies by topics / In situ chemical analyses / Journal articles

To see the other types of publications on this topic, follow the link: In situ chemical analyses.

Journal articles on the topic 'In situ chemical analyses'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'In situ chemical analyses.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ling, Zhigang, Naruhito Hori, Tadahisa Iwata, and Akio Takemura. "In-situ Analysis of Chemical Structure ofAPI Adhesive Using FT-NIR Spectroscopy." Journal of The Adhesion Society of Japan 51, s1 (2015): 322–31. http://dx.doi.org/10.11618/adhesion.51.322.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Reddy, Ramana G., and V. Kumar. "Chemical In Situ Synthesis of Aluminum Alloy Composites." Materials Science Forum 561-565 (October 2007): 701–4. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.701.

Full text

Abstract:

Aluminum alloys were reinforced with AlN particles using a novel chemical in situ technique. Thermodynamic analyses were made to identify the conditions for the in situ formation of the AlN in Al alloys. Experiments were conducted in the temperature range of 1173-1473 K by injecting ammonia gas. The composites with AlN quantity varying from 5 to 51 wt % were produced. Effect of process variables such as gas injection time, flow rate of ammonia gas and temperature of the alloy melt on the formation of AlN was studied. Increase in either injection time or flow rate of the ammonia gas increased t

APA, Harvard, Vancouver, ISO, and other styles

3

Bierman, Paul R., and Alan R. Gillespie. "Evidence Suggesting That Methods of Rock-Varnish Cation-Ratio Dating Are neither Comparable nor Consistently Reliable." Quaternary Research 41, no. 1 (1994): 82–90. http://dx.doi.org/10.1006/qres.1994.1009.

Full text

Abstract:

AbstractUsing samples from a prehistoric quarry site in the Mojave Desert, we tested and compared the two principal methods of rock-varnish cation-ratio dating, analysis of rock-varnish scrapings (R. I. Dorn, 1983, Quaternary Research 20, 49-73 and 1989, Physical Geography 13, 559-596) and analysis of rock varnish in situ (C. D. Harrington and J. W. Whitney, 1987, Geology 15, 967-970). Because we found no consistent relationship between the varnish cation ratio (K + Ca)/Ti, and the relative age of the varnish, neither method could be used to "cation-ratio date" the underlying chert artifacts.

APA, Harvard, Vancouver, ISO, and other styles

4

Buccolieri, Giovanni, Antonio Serra, Giorgio Giuseppe Carbone, et al. "In Situ Investigation of the Medieval Copper Alloy Door in Troia (Southern Italy)." Heritage 6, no. 3 (2023): 2688–700. http://dx.doi.org/10.3390/heritage6030142.

Full text

Abstract:

This work describes experimental results concerning the chemical composition of the alloy patina and inlays from the medieval copper alloy door of the cathedral of Troia (southern Italy), dating back to 1127 CE. The analyses were conducted in situ with no sampling or sample preparation required, using a portable energy-dispersive X-ray fluorescence (ED-XRF) instrument. The compositional results show that the two door leaves were made using a binary alloy of copper and lead, while the nails, lion protomes, and handles have a different chemical composition. Moreover, the analyses revealed unifor

APA, Harvard, Vancouver, ISO, and other styles

5

Aoun, Amer, Frank Wagner, Jean-Yves Natoli, Thomas Gineste, and Delphine Faye. "Analyzing and cleaning laser-induced contamination deposits from epoxy outgassing under UV laser irradiation in vacuum." IOP Conference Series: Materials Science and Engineering 1328, no. 1 (2025): 012013. https://doi.org/10.1088/1757-899x/1328/1/012013.

Full text

Abstract:

Abstract The mechanisms of deposition and removal of Laser-Induced Contamination (LIC) were studied in a vacuum environment using a combination of in-situ and ex-situ techniques. The optical properties of LIC deposits were analyzed in-situ through transmission measurements and Laser-Induced Fluorescence (LIF) and ex-situ using White Light Interference Microscopy (WLIM). Chemical analyses were conducted via in-situ gas-phase mass spectrometry and ex-situ Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) measurements of the deposits. Correlations between the in-situ techniques demonstrat

APA, Harvard, Vancouver, ISO, and other styles

6

Ten Cate, J. M. "In Situ Models, Physico-Chemical Aspects." Advances in Dental Research 8, no. 2 (1994): 125–33. http://dx.doi.org/10.1177/08959374940080020201.

Full text

Abstract:

In situ (intra-oral) caries models are used for two purposes. First, they provide information about oral physiological processes. Such information helps to detail our knowledge of the oral ecosystem and to verify conclusions from in vitro experiments. Second, in situ models are utilized to test preventive agents in the phase between laboratory testing and clinical trials. Most investigations involving enamel inserts have been aimed at testing new dentifrices. The experimental designs of such studies usually do not allow one to draw conclusions on physico-chemical processes, e.g., because of si

APA, Harvard, Vancouver, ISO, and other styles

7

Kliewer, C. E., M. M. Disko, S. L. Soled, and G. J. DeMartin. "A Reactor for “Ex-Situ” TEM Catalyst Characterization." Microscopy and Microanalysis 5, S2 (1999): 926–27. http://dx.doi.org/10.1017/s1431927600017955.

Full text

Abstract:

The microstructural and chemical characterization of catalysts is not only integral to their initial development but also to understanding and controlling their behavior over time. To better elucidate the morphology of these materials and relate physical properties to catalytic properties (e.g., activity, selectivity, etc.), “ex-situ” methods for studying catalysts under reactive conditions have been developed.Because conventional transmission electron microscopy (CTEM) is conducted under high vacuum conditions, it is difficult to replicate the exact chemical environment of a catalyst (e.g., h

APA, Harvard, Vancouver, ISO, and other styles

8

Parnell, J. Jacob, Richard E. Terry, and Payson Sheets. "Soil Chemical Analysis of Ancient Activities in Cerén, El Salvador: A Case Study of a Rapidly Abandoned Site." Latin American Antiquity 13, no. 3 (2002): 331–42. http://dx.doi.org/10.2307/972114.

Full text

Abstract:

Activities performed over long periods of time tend to leave soil chemical residues as evidence of those activities. Some of the questions studied in this paper deal with the interpretive capabilities provided by chemical patterns. Soil samples from Cerén, El Salvador, a well-preserved site, were analyzed for extractable phosphorus and heavy metals. We compared in situ artifacts collected from the site with chemical signatures that indicate activity areas. We found that elevated concentrations of phosphorus were associated with food preparation, consumption, and disposal. Heavy metals were ass

APA, Harvard, Vancouver, ISO, and other styles

9

Farr, Nicholas T. H. "Revealing Localised Mechanochemistry of Biomaterials Using In Situ Multiscale Chemical Analysis." Materials 15, no. 10 (2022): 3462. http://dx.doi.org/10.3390/ma15103462.

Full text

Abstract:

The study of mechanical and chemical phenomena arising within a material that is being subjected to external stress is termed mechanochemistry (MC). Recent advances in MC have revealed the prospect not only to enable a greener route to chemical transformations but also to offer previously unobtainable opportunities in the production and screening of biomaterials. To date, the field of MC has been constrained by the inability of current characterisation techniques to provide essential localised multiscale chemically mapping information. A potential method to overcome this is secondary electron

APA, Harvard, Vancouver, ISO, and other styles

10

Ambrož, O., J. Čermák, P. Jozefovič, and Š. Mikmeková. "In situ stereomicroscopy chemical and color etching." Practical Metallography 61, no. 9-10 (2024): 642–60. http://dx.doi.org/10.1515/pm-2024-0056.

Full text

Abstract:

Abstract In the field of materials analysis, chemical etching continues to play a crucial role in sample preparation, yet its approach is often more empirical. While classical metallographic methods dominate, insufficient understanding of the process creates room for innovation. To improve this situation, the development of new techniques allowing for structure observation during sample preparation is necessary. This is a critical step towards mitigating the influence of stochastic factors, thereby increasing the reliability and predictability of the outcomes. For real-time structural analysis

APA, Harvard, Vancouver, ISO, and other styles

11

Augustin, YOBOUET Yao, MELEDJE Djedjess Essoh Jules-César, MANOUAN Wedjers Max Robin, ZRAN Vanh Eric-Simon, and TROKOUREY Albert. "Study of Some Physico-chemical Parameters of Water Treated by Activated Carbon Based on Rhonier Fiber." International Journal of Environment and Climate Change 14, no. 12 (2024): 26–35. http://dx.doi.org/10.9734/ijecc/2024/v14i124604.

Full text

Abstract:

Like countries concerned about the health of their population, Côte d'Ivoire is carrying out numerous actions against waterborne diseases through the treatment of drinking water. In this study, we collected water samples from three sites on which we carried out in situ analyses as well as laboratory analyses. The results generally showed that the parameters studied comply with the chosen standard, except for nitrites and nitrates; COD and iron content. The samples were treated on a filter consisting of a layer of activated carbon from palmyra fiber topped with a quantity of sand, all in a 4.6

APA, Harvard, Vancouver, ISO, and other styles

12

Mahdavi, Ali, Ali Nikkhah, and Fatemeh Alemi. "The comparison between nylon bag and gas production method, use of regression equations in determination of feedstuffs nutritive value." Proceedings of the British Society of Animal Science 2007 (April 2007): 211. http://dx.doi.org/10.1017/s1752756200021141.

Full text

Abstract:

The in situ technique forms the basis of many feed evaluation systems for ruminants. Although this method is widely used, the NBT is very laborious, time-consuming, and incubations and analyses of the feed residues often last several weeks. Therefore, several other techniques have been investigated to measure and predict ruminal degradation of various chemical components of feedstuffs. The aim of this study is to investigate the possibilities of estimating in situ degradation characteristics of DM, CP, ADF and NDF in several feedstuffs by gas production characteristics and chemical composition

APA, Harvard, Vancouver, ISO, and other styles

13

Schnitzer, Morris. "The in situ analysis of organic matter in soils." Canadian Journal of Soil Science 81, no. 3 (2001): 249–54. http://dx.doi.org/10.4141/s00-064.

Full text

Abstract:

Traditionally, studies on soil organic matter (SOM) begin with the extraction of SOM from soils, its fractionation into humic acid, fulvic acid, and humin, followed by de-ashing of each fraction. These are tedious, laborious and inefficient procedures that do not provide any chemical information on these materials. Instead, recently developed methods such as solid-state 13C NMR and pyrolysis – field ionization mass spectrometry (Py-FIMS) can now be used for the in situ analysis of SOM in soils. These methods identify the major chemical components of SOM without extractions and fractionations,

APA, Harvard, Vancouver, ISO, and other styles

14

Pratapa, Y. Reddy, K. L. Narayana, and M. Kedar Mallik. "Ex Situ Tribological and Electro-chemical analysis of Aluminium." Journal of Physics: Conference Series 2070, no. 1 (2021): 012205. http://dx.doi.org/10.1088/1742-6596/2070/1/012205.

Full text

Abstract:

Abstract Aluminium sample coupon is evaluated for electro-chemical, tribological and microstructural study under selected test conditions. Aluminium is a light-weight material chiefly preferred in fields like automobile, aerospace, marine and satellite domestic appliances etc. Moreover, due to its specific characteristics, it plays a crucial role in industries and research fields. In the present work, the ex situ tribological (wear test), electrochemical (corrosion test), mechanical (microhardness test) and microstructural (nodularity percentage) behaviours of Aluminum sample is presaged. The

APA, Harvard, Vancouver, ISO, and other styles

15

Gai, Pratibha L., and Edward D. Boyes. "In situ visualisation and analysis of dynamic single atom processes in heterogeneous catalysts." Journal of Materials Chemistry A 10, no. 11 (2022): 5850–62. http://dx.doi.org/10.1039/d1ta08307d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Milanesio, Marco, Luca Palin, Davide Viterbo, et al. "Chemical Selectivity in Diffraction by Statistical Analysis of in situ XRPD Data." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1471. http://dx.doi.org/10.1107/s2053273314085283.

Full text

Abstract:

X-ray diffraction methods in general allow only a limited chemical selectivity. Structural information on a subset of atoms can be obtained by a modulation enhanced diffraction (MED) experiment, using a periodic stimulus supplied in situ on a crystal, while diffraction data are collected several times within a stimulus period. The data are then treated by statistical methods such as phase sensitive detection (PSD) and Principal component analysis (PCA) techniques. The application of PSD to diffraction has been proposed as a tool to extract crystallographic information on a subset of atoms [1],

APA, Harvard, Vancouver, ISO, and other styles

17

Oueslati, Walid. "Effect of Soil Solution pH during the Tetracycline Intercalation on the Structural Properties of a Dioctahedral Smectite: Microstructural Analysis." Journal of Nanomaterials 2019 (September 12, 2019): 1–17. http://dx.doi.org/10.1155/2019/7414039.

Full text

Abstract:

The aim of this work is to quantitatively characterize the structural response to a chemical disruption of saturated montmorillonite crystallites by organic molecules (tetracycline (TC)), derived from pharmaceutical waste. The chemical disturbance is performed by varying the surrounding soil solution pH. To show the effect of this chemical perturbation on the interlamellar space (IS) configuration and the hydration properties, an “in situ” XRD analysis, based on the modeling of the 00l reflections, is carried out. The “in situ” XRD analysis is performed by varying the relative humidity conditi

APA, Harvard, Vancouver, ISO, and other styles

18

Vykhodets, V. B., and T. E. Kurennykh. "In-situ nuclear reaction analysis." Diagnostics, Resource and Mechanics of materials and structures, no. 4 (June 2021): 6–14. http://dx.doi.org/10.17804/2410-9908.2021.4.006-014.

Full text

Abstract:

The principles of in-situ nuclear reaction techniques and the need for them in various fields of scientific research are considered; several examples of the application of these techniques are given. It is shown that the techniques of in-situ nuclear reactions are effective in studying the diffusion of deuterium in metals at temperatures below room temperature, the diffusion of deuterium in proton-conducting oxides, the quantum diffusion of deuterium in metals at cryogenic temperatures, and the chemical composition of oxide nanopowders when they are heated in vacuum. Promising applications of

APA, Harvard, Vancouver, ISO, and other styles

19

Herzog, Benjamin M., Simon M. Kleinknecht, Claus P. Haslauer, and Norbert Klaas. "Experimental upscaling analyses for a surfactant-enhanced in-situ chemical oxidation (S-ISCO) remediation design." Journal of Contaminant Hydrology 258 (September 2023): 104230. http://dx.doi.org/10.1016/j.jconhyd.2023.104230.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Graikou, Konstantia, Anna Mpishinioti, Nikolaos Tsafantakis, Eleni Maloupa, Katerina Grigoriadou, and Ioanna Chinou. "Comparative Phytochemical Analyses of Flowers from Primula veris subsp. veris Growing Wild and from Ex Situ Cultivation in Greece." Foods 12, no. 13 (2023): 2623. http://dx.doi.org/10.3390/foods12132623.

Full text

Abstract:

In the last decades, Primula veris subsp. veris (roots and flowers) has been over harvested through legal and illegal ways in Greece, due to its extremely high commercial demand, as it is used in industry because of its well-known therapeutic properties. As ex situ cultures of the plant have been already developed, in the current comparative study, the herbal teas (infusions) from both flowers of cowslip growing wild in the Prespa Lake Park (NW Greece), and from ex situ propagated and cultivated plant material, have been investigated, with the ultimate goal of assessing them qualitatively. Fur

APA, Harvard, Vancouver, ISO, and other styles

21

Clarke, A. N., R. D. Mutch, D. J. Wilson, and K. H. Oma. "Design and Implementation of Pilot Scale Surfactant Washing/Flushing Technologies including Surfactant Reuse." Water Science and Technology 26, no. 1-2 (1992): 127–35. http://dx.doi.org/10.2166/wst.1992.0393.

Full text

Abstract:

Chemicals with low solubility, volatility, and biodegradability can be very hard to treat in soils. These chemicals may however by addressed by surfactant supplemented technologies. PCBs are a prime example of difficult chemicals and were used frequently in the studies. The surfactant enhances the solubility of the chemicals, therefore effecting their desorption and more efficient treatment. ECKENFELDER INC. has completed laboratory scale experiments simulating in situ/ex situ surfactant treatment of various types of chemicals, singly and in combination, and has built a pilot scale unit for th

APA, Harvard, Vancouver, ISO, and other styles

22

Pecha, M. Brennan, Kristiina Iisa, Michael Griffin, et al. "Ex situ upgrading of pyrolysis vapors over PtTiO2: extraction of apparent kinetics via hierarchical transport modeling." Reaction Chemistry & Engineering 6, no. 1 (2021): 125–37. http://dx.doi.org/10.1039/d0re00339e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Huang, Saisai, Qiufang Jiang, Bin Yu, Yujing Nie, Zhongqing Ma, and Lingfei Ma. "Combined Chemical Modification of Bamboo Material Prepared Using Vinyl Acetate and Methyl Methacrylate: Dimensional Stability, Chemical Structure, and Dynamic Mechanical Properties." Polymers 11, no. 10 (2019): 1651. http://dx.doi.org/10.3390/polym11101651.

Full text

Abstract:

Acetylation and in situ polymerization are two typical chemical modifications that are used to improve the dimensional stability of bamboo. In this work, the combination of chemical modification of vinyl acetate (VA) acetylation and methyl methacrylate (MMA) in situ polymerization of bamboo was employed. Performances of the treated bamboo were evaluated in terms of dimensional stability, wettability, thermal stability, chemical structure, and dynamic mechanical properties. Results show that the performances (dimensional stability, thermal stability, and wettability) of bamboo that was prepared

APA, Harvard, Vancouver, ISO, and other styles

24

Ajith Kumar, Kumaraswamy Kaliamma, Krishnaswamy Raghukandan, Uma Thanu Subramonia Pillai, Bellambettu Chandrasekhara Pai, and Madhusudan Chakraborty. "Processing and Microstructure of Magnesium In Situ Composite with Titanium and Boron Based Reinforcement." Materials Science Forum 710 (January 2012): 389–94. http://dx.doi.org/10.4028/www.scientific.net/msf.710.389.

Full text

Abstract:

The present work is aimed to investigate the in-situ TiB/TiB2 particle formation in Mg and Mg-Al alloy via the chemical reaction between Mg, Al, K2TiF6 and KBF4. The feasibility to produce the Mg and Mg-Al matrix with in-situ TiB2 and TiB particles have been studied with respect to processing parameters. The XRD, optical microscopy and SEM-EDX analyses have been carried out on the synthesised composites. Significant improvement in the hardness values are obtained for the in-situ composite compared to the base alloys.

APA, Harvard, Vancouver, ISO, and other styles

25

Anvarov, Adyl, Adelaida Pelaez Angel, Beatriz Felices Rando, and Jimena Lazaro Gil. "Remediation of groundwater contamination from an old, non-functional landfill in Hořkovec open cast mine, Czech Republic." Journal of Water Supply: Research and Technology-Aqua 68, no. 8 (2019): 829–41. http://dx.doi.org/10.2166/aqua.2019.198.

Full text

Abstract:

Abstract The main aim of this work was to assess different suitable strategies for the remediation of groundwater contaminated with the leachate from an old, not functional landfill located next to Hořkovec open cast mine, in the Czech Republic. The leachate consisted of mainly chlorinated aliphatic compounds and aromatic volatile compounds. The site, that had already been treated, was observed to show rebounding effects after the first remediation treatment. This article analyses the possibilities of using different types of remediation technologies that include in-situ chemical oxidation (IS

APA, Harvard, Vancouver, ISO, and other styles

26

Anderson, Timothy I., and Anthony R. Kovscek. "Analysis and comparison of in-situ combustion chemical reaction models." Fuel 311 (March 2022): 122599. http://dx.doi.org/10.1016/j.fuel.2021.122599.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Qian, Yuqin, Gang-hua Deng, and Yi Rao. "In Situ Chemical Analysis of the Gas–Aerosol Particle Interface." Analytical Chemistry 90, no. 18 (2018): 10967–73. http://dx.doi.org/10.1021/acs.analchem.8b02537.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Kooymans, Cate, Charles W. Magee Jr., Kathryn Waltenberg та ін. "Effect of chemical abrasion of zircon on SIMS U–Pb, δ¹⁸O, trace element, and LA-ICPMS trace element and Lu–Hf isotopic analyses". Geochronology 6, № 3 (2024): 337–63. http://dx.doi.org/10.5194/gchron-6-337-2024.

Full text

Abstract:

Abstract. This study assesses the effect of chemical abrasion on in situ mass spectrometric isotopic and elemental analyses in zircon. Chemical abrasion improves the U–Pb systematics of SIMS (secondary ion mass spectrometry) analyses of reference zircons, while leaving other isotopic systems largely unchanged. SIMS 206Pb/238U ages of chemically abraded reference materials TEMORA-2, 91500, QGNG, and OG1 are precise to within 0.25 % to 0.4 % and are within uncertainty of chemically abraded TIMS (thermal ionization mass spectrometry) reference ages, while SIMS 206Pb/238U ages of untreated zircons

APA, Harvard, Vancouver, ISO, and other styles

29

Akhlaghi, Maryam, Esmaeil Salahi, Seyed Ali Tayebifard, and Gert Schmidt. "Role of Ti3AlC2 MAX phase on characteristics of in-situ synthesized TiAl intermetallics. Part III: microstructure." Synthesis and Sintering 2, no. 1 (2022): 20–25. http://dx.doi.org/10.53063/synsint.2022.2182.

Full text

Abstract:

In this paper, the 3rd part of a series of publications on the sinterability and characteristics of TiAl–Ti3AlC2 composites, the microstructure development during the synthesis and sintering processes was studied by scanning electron microscopy (SEM). Chemical evaluation of various phases in the developed microstructures was performed using energy-dispersive X-ray spectroscopy (EDS) in different ways such as point, line scan and two-dimensional elemental map analyses. For this purpose, five samples were fabricated with different percentages of Ti3AlC2 MAX phase additive (10, 15, 20, 25 and 30

APA, Harvard, Vancouver, ISO, and other styles

30

Cordoba, Aldo, Juan Valerio Cauich-Rodríguez, Rossana Faride Vargas-Coronado, Rodrigo Velázquez-Castillo, and Karen Esquivel. "A Novel In Situ Sol-Gel Synthesis Method for PDMS Composites Reinforced with Silica Nanoparticles." Polymers 16, no. 8 (2024): 1125. http://dx.doi.org/10.3390/polym16081125.

Full text

Abstract:

The addition of nanostructures to polymeric materials allows for a direct interaction between polymeric chains and nanometric structures, resulting in a synergistic process through the physical (electrostatic forces) and chemical properties (bond formation) of constituents for the modification of their properties and potential cutting-edge materials. This study explores a novel in situ synthesis method for PDMS-%SiO2 nanoparticle composites with varying crosslinking degrees (PDMS:TEOS of 15:1, 10:1, and 5:1); particle concentrations (5%, 10%, and 15%); and sol-gel catalysts (acidic and alkalin

APA, Harvard, Vancouver, ISO, and other styles

31

Govinda Raj, Chinmayee, Mohamed Odeh, Cambrie Salyards, and Amanda Stockton. "Early Technology Readiness Level (TRL) Development of the Microfluidic Inorganic Conductivity Detector for Europa and the Solenoid-Based Actuator Assembly for Impact Penetrators." Sensors 24, no. 23 (2024): 7704. https://doi.org/10.3390/s24237704.

Full text

Abstract:

This study introduces an innovative in situ lander/impact-penetrator design tailored for Discovery-class missions to Europa, specifically focused on conducting astrobiological analyses. The platform integrates a microfluidic capacitively coupled contactless conductivity detector (C4D), optimized for the detection of low-concentration salts potentially indicative of biological activity. Our microfluidic system allows for automated sample routing and precise conductivity-based detection, making it suitable for the harsh environmental and logistical demands of Europa’s icy surface. This technolog

APA, Harvard, Vancouver, ISO, and other styles

32

Galapago, Ma. Christel M., David P. Pilien, and Guzman Ronel S. De. "In Situ Soil Chemical and Physical Analysis of the Sweetest Carabao Mangoes of Zambales." American Journal of Technology and Applied Sciences 1, no. 1 (2022): 1–12. https://doi.org/10.5281/zenodo.6501480.

Full text

Abstract:

<strong>Abstract</strong> The study was conducted to analyze some of the soil's physical and chemical properties in situ, where the sweetest carabao mangoes of Zambales were found. Soil samples in three different soil depths were taken within the canopy coverage of the sweetest carabao mangoes from San Marcelino, Masinloc, and Sta. Cruz before the analysis. The test was focused on the soil's potassium content being linked and assumed to be responsible for the sweetness of the mango fruits. As a result of the soil analysis from the three study areas, high potassium concentrations in thr

APA, Harvard, Vancouver, ISO, and other styles

33

Bas, Corine, Marie Crouillere, Florence Dubelley, et al. "Embrittlement of PFSA Reinforced Membrane Interfaces after Ex-Situ Chemical-Mechanical Aging." ECS Meeting Abstracts MA2023-02, no. 39 (2023): 1881. http://dx.doi.org/10.1149/ma2023-02391881mtgabs.

Full text

Abstract:

Perfluorosulfonic acid (PFSA) membrane degradation has been identified as one of the main factors responsible for the short lifetime of PEMFCs [1,2]. The aging mechanisms of these membranes are complex due to mechanical fatigue combined to chemical aggressions. Mechanical fatigue results from the wetting/drying cycles while the chemical aggressions are induced by radicals formed during fuel cell operation. Although it is commonly accepted that chemical and mechanical stresses can interact to accelerate membrane degradation [3], coupled studies are rarely conducted. Thus, an original experiment

APA, Harvard, Vancouver, ISO, and other styles

34

Tóth, Márton, Csaba Ilyés, and Péter Szűcs. "Chemical composition analysis of thermal water of Hajdúdorog." Multidiszciplináris tudományok 12, no. 3 (2022): 299–306. http://dx.doi.org/10.35925/j.multi.2022.3.28.

Full text

Abstract:

In our work, a chemical analysis of the thermal water of Hajdúdorog was performed to identify the therapeutic possibilities of the water. Two sampling campaigns were performed in August 2021 and March 2022. The chemical composition and characteristic of thermal water were determined in situ on-site and in labor investigations. According to the chemical analysis, we found the water type of thermal water is very rare, called NaCl type like the seawater. Its rareness is known by Lajos Marton (Marton, 2009; Marton, 2013), only 3,5% of the thermal waters of the Hungarian Great Plain can be grouped

APA, Harvard, Vancouver, ISO, and other styles

35

Vojinovic, Vojislav, J. M. S. Cabral, and L. R. Fonseca. "Ex situ bioprocess monitoring techniques." Chemical Industry and Chemical Engineering Quarterly 13, no. 2 (2007): 103–16. http://dx.doi.org/10.2298/ciceq0702103v.

Full text

Abstract:

Rapid development of biotechnology resulted in increasing need for bioprocess monitoring and control. Efficient process control allows optimization of process efficiency and productivity, reduction of costs and pollution, and quality control. In situ sensors for real-time bioprocess monitoring have been recently reviewed. In this paper the use of ex situ techniques for real time (or quasi real time) monitoring methods is reviewed. These include mass spectrometry, gas chromatography, methods based on semiconductor gas sensors and electronic noses for the analysis of dissolved gas and bioreactor

APA, Harvard, Vancouver, ISO, and other styles

36

Ng, T. C. A., and H. Y. Ng. "Physico-chemical characterisation versus in situ micro-structural characterisation of membrane fouling in membrane bioreactors." Water Science and Technology 63, no. 8 (2011): 1781–87. http://dx.doi.org/10.2166/wst.2011.196.

Full text

Abstract:

Fouling characteristics of aerobic submerged membrane bioreactors were analysed under two different membrane materials. Polyethersulfone (PES) membranes were found to foul faster at sub-critical flux than polyolefin (PO) membranes. Physico-chemical characterisation, by means of comparison of extracellular polymeric substances (EPS) and soluble microbial products (SMP) concentrations, as well as the mixed liquor suspended solids (MLSS) concentration were unable to explain the differences in membrane fouling of the contrasting membrane materials. The use of confocal laser scanning microscopy (CL

APA, Harvard, Vancouver, ISO, and other styles

37

Makunza, John K., and G. Senthil Kumaran. "Analyses of Deteriorating Old Masonry Buildings; Characterisation of Materials for Establishment of their Compatible Repairs." International Journal of Engineering Research in Africa 15 (April 2015): 47–61. http://dx.doi.org/10.4028/www.scientific.net/jera.15.47.

Full text

Abstract:

Most of the Governmental and religious building structures in Rungwe district are masonry structures built during the German East Africa period. These structures are deteriorating despite of various efforts on their repair intervention using modern cements and paints. This paper studies the types of mineral binders used, composition and physical characteristics of these in-situ mortar materials for the purpose of deciding on their appropriate compatible repair materials. Field observations and investigations, laboratory materials testing and review of the literature showed that the in-situ mor

APA, Harvard, Vancouver, ISO, and other styles

38

Graham, J. "The 2003 R.M. Hardy Lecture: Soil parameters for numerical analysis in clay." Canadian Geotechnical Journal 43, no. 2 (2006): 187–209. http://dx.doi.org/10.1139/t05-098.

Full text

Abstract:

Engineers in geotechnical practice work on increasingly complex problems with increasingly powerful numerical tools. Effective solutions to design problems need good information about the site and parameters (or functions) that describe how the soil will behave under the proposed loadings. These loadings can include heating, drying or wetting, time effects, and chemical changes as well as the more common structural loads. This paper outlines issues that need to be considered when laboratory tests are used to produce soil properties for use in numerical analyses. The focus is on soft to moderat

APA, Harvard, Vancouver, ISO, and other styles

39

Kośmider, Beata, Regina Osiecka, and Jan T. Siciński. "Application of micronucleus assay in plants to monitor environmental pollution in situ." Acta Universitatis Lodziensis. Folia Biologica et Oecologica 4 (January 1, 2008): 37–49. http://dx.doi.org/10.18778/1730-2366.04.03.

Full text

Abstract:

Samples of 5 vascular plant species: Achillea millefolium L., Artemisia vulgaris L., Festuca gigantea (L.) VILL., Ranunculus acris L. s. str. and Vicia angustifolia L. were collected near Fuel Storage Station, Chemical Fibre Factory “Wistom” in Tomaszów Mazowiecki and Sewage Treatment Plant in Sulejów. Genotoxicity of environmental pollution was analysed using micronucleus assays in pollen mother and root tip cells in comparison with plant material collected in the Tatra and Babia G óra National Parks. Abnorm alities in morphology of plants growing in polluted areas were also found. The cytoge

APA, Harvard, Vancouver, ISO, and other styles

40

Kayode, Sodipo Bashiru, and Azlan Abdul Aziz. "An In-Situ Functionalization of Decanethiol Monolayer on Thin Silica Coated Superparamagnetic Iron Oxide Nanoparticles Synthesized by Non-Seeded Process." Advanced Materials Research 1024 (August 2014): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amr.1024.300.

Full text

Abstract:

Superparamagnetic iron oxide nanoparticles (SPION) are routinely employed in biomedical and water treatment applications due to their inherent magnetic properties. However, for these applications a surface modified and functionalized SPION is required. Herein, for the first time we present an in-situ method of functionalizing decanethiol monolayer on thin silica coated SPION synthesised via a non-seeded process. Through physico-chemical analyses the grafting of decanethiol onto the composite nanoparticles were demonstrated. The alkane functional group in the monolayer molecule attached to the

APA, Harvard, Vancouver, ISO, and other styles

41

Könemann, Sarah, Yvonne Müller, Daniel Tschentscher, et al. "Combination of In Situ Feeding Rate Experiments and Chemical Body Burden Analysis to Assess the Influence of Micropollutants in Wastewater on Gammarus pulex." International Journal of Environmental Research and Public Health 16, no. 5 (2019): 883. http://dx.doi.org/10.3390/ijerph16050883.

Full text

Abstract:

Wastewater discharge is one of the main sources of micropollutants within the aquatic environment. To reduce the risks for the aquatic environment, the reduction of the chemical load of wastewater treatment plant effluent is critical. Based on this need, additional treatment methods, such as ozonation, are currently being tested in several wastewater treatment plants (WWTPs). In the present study, effects were investigated using in situ feeding experiments with Gammarus pulex and body burden analyses of frequently detected micropollutants which used a Quick Easy Cheap Effective Rugged and Safe

APA, Harvard, Vancouver, ISO, and other styles

42

Mitas, B., H. Pauna, J. Feldbacher, and J. Schenk. "An In-Situ Analysis Method in EAF and BOF Steelmaking." IOP Conference Series: Materials Science and Engineering 1309, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1757-899x/1309/1/012002.

Full text

Abstract:

Abstract An analysis was conducted to gage the feasibility of using a spectroscopic method to determine the chemical composition of the liquid metal phase in EAF and BOF steelmaking. The hypothesis that certain radiation intensities found in UV- and UV-near regions of an spectrum emitted from the hot-spot in the BOF or the impingement area of oxyfuel burners in EAF steelmaking can be used for analysing the chemical components present in the liquid metal is tested. Significant lab-scale experiment results and the conclusions regarding industrial scale implementation are presented.

APA, Harvard, Vancouver, ISO, and other styles

43

Shigenaka, Gary, Buffy Meyer, Edward Overton, and M. Scott Miles. "Physical and Chemical Characterization of In-Situ Burn Residue Encountered by a Deep-Water Fishery in the Gulf of Mexico." International Oil Spill Conference Proceedings 2017, no. 1 (2017): 1020–40. http://dx.doi.org/10.7901/2169-3358-2017.1.1020.

Full text

Abstract:

2017-185 ABSTRACT The response technique of in-situ burning was used to great effect during the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. An estimated 220,000-310,000 bbl of surface oil was consumed by operational in-situ burn activities. Post-burn residues were not recovered, as most were denser than seawater and sank after the burns. However, late in 2010, a relatively small deep-water shrimp fishery operating on the shelf north of the Macondo wellhead encountered tarballs on or near the bottom at around 200 m. We physically and chemically characterized samples of these submerg

APA, Harvard, Vancouver, ISO, and other styles

44

Buccolieri, Giovanni, Alfredo Castellano, Vito Nicola Iacobelli, et al. "Non-Destructive In Situ Investigation of the Study of a Medieval Copper Alloy Door in Canosa di Puglia (Southern Italy)." Heritage 5, no. 1 (2022): 145–56. http://dx.doi.org/10.3390/heritage5010008.

Full text

Abstract:

This paper reports the analyses carried out on the medieval copper alloy door (1111–1118 AD) of the mausoleum of Boemondo d’Altavilla in Canosa di Puglia (Southern Italy). The studied door is the smallest medieval bronze door extant in Italy and, unlike the other Byzantine doors, was most probably made in Canosa di Puglia and not in Constantinople. Analyses were performed to assess the chemical composition of the alloy patinas using a portable energy dispersive X-ray fluorescence (ED-XRF) instrument designed at the University of Salento. The experimental results suggested that the two door lea

APA, Harvard, Vancouver, ISO, and other styles

45

Matusiewicz, Henryk, and Magdalena Krawczyk. "Determination of nickel by chemical vapor generation in situ trapping flame AAS." Open Chemistry 9, no. 4 (2011): 648–59. http://dx.doi.org/10.2478/s11532-011-0044-4.

Full text

Abstract:

AbstractThe analytical performances of coupled chemical vapor generation, integrated atom trap (CVG-IAT) atomizer flame atomic absorption spectrometry (FAAS) system were evaluated for determination of nickel in environmental samples. Nickel chemical vapors are atomized in an air-acetylene flame-heated IAT. A new design of CVG-IAT-FAAS hyphenated technique that would exceed the operational capabilities of existing arrangements (a water-cooled single silica tube, double-slotted quartz tube) permitting construction of an “integrated trap” was investigated. An improvement in limit of detection was

APA, Harvard, Vancouver, ISO, and other styles

46

de Almeida Duarte, Luis Felipe, Caroline Araújo de Souza, Camilo Dias Seabra Pereira, and Marcelo Antonio Amaro Pinheiro. "Metal toxicity assessment by sentinel species of mangroves: In situ case study integrating chemical and biomarkers analyses." Ecotoxicology and Environmental Safety 145 (November 2017): 367–76. http://dx.doi.org/10.1016/j.ecoenv.2017.07.051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Francaviglia, Nadia, Angela Lombardo, and Stefania Caramanna. "Conservation Work on an Ancient Sicilian Processional Banner: Preliminary Analyses and in Situ Restoration." Procedia Chemistry 8 (2013): 109–16. http://dx.doi.org/10.1016/j.proche.2013.03.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Zhou, Yuqin, Yong Zhang, Ruying Li, Mei Cai, and Xueliang Sun. "One-step in situ synthesis and characterization of W18O49@carbon coaxial nanocables." Journal of Materials Research 24, no. 5 (2009): 1833–41. http://dx.doi.org/10.1557/jmr.2009.0214.

Full text

Abstract:

We demonstrate here in situ synthesis of bulk yield W18O49@carbon coaxial nanocables based on an easily controlled chemical vapor deposition process at relatively low temperature (760 °C) using metallic tungsten powder and ethylene (C2H4) as the raw materials. Transmission electron microscope (TEM), energy dispersive x-ray (EDX), and x-ray diffraction (XRD) analyses indicate that the resultant nanostructures are composed of single-crystalline W18O49 nanowires, coaxially covered with amorphous carbon walls. A vapor–solid (VS) mechanism is proposed to interpret the formation of the nanocables. T

APA, Harvard, Vancouver, ISO, and other styles

49

Li, Hongkai, Tongqing Wang, Qian Zhao, Yonggang Meng, and Xinchun Lu. "Kinematic analysis of in situ measurement during chemical mechanical planarization process." Review of Scientific Instruments 86, no. 10 (2015): 105118. http://dx.doi.org/10.1063/1.4934366.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Short, R. T., D. P. Fries, M. L. Kerr, et al. "Underwater mass spectrometers for in situ chemical analysis of the hydrosphere." Journal of the American Society for Mass Spectrometry 12, no. 6 (2001): 676–82. http://dx.doi.org/10.1016/s1044-0305(01)00246-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!