Polimeros condutores
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This document discusses the use of conductive polymers in the production of intelligent polyurethane anticorrosive paint. Electrochemical tests were conducted on steel samples with and without coatings to analyze corrosion protection. Voltammetry analysis found the potential range for steel passivation. Potentiodynamic tests showed steel without coating undergoing corrosion while coated samples were protected. Electrochemical impedance spectroscopy revealed a resistance of 1400 Ω.cm2 for uncoated steel, and that polyaniline in the coatings maintained electrochemical activity to aid corrosion protection. The conclusion was that the polyaniline-based coatings produced showed potential as an active anticorrosive coating alternative.
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Os transformadores elétricos subterrâneos estão frequentemente expostos à corrosão intensa decorrente da estagnação de água aquecida e contaminada das câmaras subterrâneas. No Brasil, as estruturas de aço-carbono do transformador subterrâneo são usualmente protegidas com pintura de epóxi alcatrão de hulha que contém substâncias tóxicas e potencialmente cancerígenas. Com o objetivo de substituir as tintas à base de alcatrão de hulha por tintas ecologicamente corretas, tintas disponíveis no mercado nacional foram selecionadas e submetidas a ensaios de desempenho para a sua comparação com a tinta de alcatrão de hulha. Além disso, anodos foram avaliados para o estudo da aplicação de proteção catódica galvânica do metal exposto em áreas de falhas do revestimento. Este artigo apresenta e discute os resultados obtidos.
ARAUJO, A.; PANOSSIAN, Z; ALMEIDA, N.L; MARTINS, M.C.; JUNIOR, S.D.A. Organic coatings for corrosion protection of transformers in underground chambers. In: NACE INTERNATIONAL CONFERENCE & EXPO, 2012, Salt Lake City, Proceedings... Salt Lake City: NACE 2012.
Ijic final-cover
Inhibitive properties, thermodynamic, kinetics and quantum
chemical calculations of polydentate Schiff base compounds
as corrosion inhibitors for iron in acidic and alkaline media
Inhibitive properties, thermodynamic, kinetics and quantum
Inhibitive properties, thermodynamic, kinetics and quantum
chemical calculations of polydentate Schiff base compounds
as corrosion inhibitors for iron in acidic and alkaline media
10.1007_s40090-015-0039-7 (1)
This document discusses an experimental study on the corrosion inhibition properties of five polydentate Schiff base compounds for iron in acidic and alkaline media. Quantum chemical calculations based on density functional theory were performed to analyze the inhibitor/surface mechanism and experimental data. Weight loss, thermometric, and potentiodynamic polarization measurements showed that the compounds acted as mixed-type inhibitors in nitric acid and cathodic inhibitors in sodium hydroxide. Compound PSC_1 exhibited the highest inhibition efficiency of 78.4% at 10-4M in nitric acid. Adsorption of the inhibitors was found to be spontaneous, exothermic, and obeyed the Temkin isotherm. The quantum calculations aimed to describe the structural nature of
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ORGANIC COATINGS FOR CORROSION PROTECTION OF TRANSFORMERS IN UNDERGROUND CHAM...
Underground electrical transformers are frequently submitted to a very aggressive environment because of the stagnated water of underground chambers which is heated and contaminated. In Brazil, carbon steel structures of underground transformers are usually protected with coal tar epoxy paints in order to ensure their reliability. However, the use of this type of paints is being strongly restricted because coal tar contains complex mixtures of polycyclic aromatic hydrocarbons which contain many toxic and potentially carcinogenic substances. Aiming at replacing coal tar based paints by an environmentally friendly one; several paints were selected in the local market and submitted to performance tests in order to compare them with coal tar based paint. In addition, anodes were evaluated to study the application of galvanic cathodic protection in areas of metal exposure due to coating flaws. This paper presents and discusses the obtained results.
Os transformadores elétricos subterrâneos estão frequentemente expostos à corrosão intensa decorrente da estagnação de água aquecida e contaminada das câmaras subterrâneas. No Brasil, as estruturas de aço-carbono do transformador subterrâneo são usualmente protegidas com pintura de epóxi alcatrão de hulha que contém substâncias tóxicas e potencialmente cancerígenas. Com o objetivo de substituir as tintas à base de alcatrão de hulha por tintas ecologicamente corretas, tintas disponíveis no mercado nacional foram selecionadas e submetidas a ensaios de desempenho para a sua comparação com a tinta de alcatrão de hulha. Além disso, anodos foram avaliados para o estudo da aplicação de proteção catódica galvânica do metal exposto em áreas de falhas do revestimento. Este artigo apresenta e discute os resultados obtidos.
ARAUJO, A.; PANOSSIAN, Z; ALMEIDA, N.L; MARTINS, M.C.; JUNIOR, S.D.A. Organic coatings for corrosion protection of transformers in underground chambers. In: NACE INTERNATIONAL CONFERENCE & EXPO, 2012, Salt Lake City, Proceedings... Salt Lake City: NACE 2012.
Ijic final-cover
Inhibitive properties, thermodynamic, kinetics and quantum
chemical calculations of polydentate Schiff base compounds
as corrosion inhibitors for iron in acidic and alkaline media
Inhibitive properties, thermodynamic, kinetics and quantum
Inhibitive properties, thermodynamic, kinetics and quantum
chemical calculations of polydentate Schiff base compounds
as corrosion inhibitors for iron in acidic and alkaline media
10.1007_s40090-015-0039-7 (1)
This document discusses an experimental study on the corrosion inhibition properties of five polydentate Schiff base compounds for iron in acidic and alkaline media. Quantum chemical calculations based on density functional theory were performed to analyze the inhibitor/surface mechanism and experimental data. Weight loss, thermometric, and potentiodynamic polarization measurements showed that the compounds acted as mixed-type inhibitors in nitric acid and cathodic inhibitors in sodium hydroxide. Compound PSC_1 exhibited the highest inhibition efficiency of 78.4% at 10-4M in nitric acid. Adsorption of the inhibitors was found to be spontaneous, exothermic, and obeyed the Temkin isotherm. The quantum calculations aimed to describe the structural nature of
10.1007_s40090-015-0039-7 (1)
This document discusses an experimental study on the corrosion inhibition properties of five polydentate Schiff base compounds for iron in acidic and alkaline media. Quantum chemical calculations based on density functional theory were performed to analyze the inhibitor/surface mechanism and experimental data. Weight loss, thermometric, and potentiodynamic polarization measurements showed that the compounds acted as mixed-type inhibitors in nitric acid and cathodic inhibitors in sodium hydroxide. Compound PSC_1 exhibited the highest inhibition efficiency of 78.4% at 10-4M in nitric acid. Adsorption of the inhibitors was found to be spontaneous, exothermic, and obeyed the Temkin isotherm. The quantum calculations aimed to describe the structural nature of
10.1007_s40090-015-0039-7 (1)
This document discusses an experimental study on the inhibitive properties of five polydentate Schiff base compounds as corrosion inhibitors for iron in acidic and alkaline media. Weight loss, thermometric, and potentiodynamic polarization measurements were used to evaluate the inhibition efficiency of the compounds. Quantum chemical calculations based on density functional theory were also performed to analyze the inhibitor/surface interaction mechanism and understand the relationship between molecular structure and inhibition efficiency. The results showed that compound PSC_1 had the best inhibition efficiency of 78.4% at 10-4M concentration in nitric acid solution. Adsorption of the inhibitors was found to be spontaneous, exothermic and obeyed the Temkin isotherm.
Characterization of corrosion of x70 pipeline steel in thin electrolyte layer
This document describes a study that used scanning Kelvin probe technique to characterize the corrosion behavior of X70 pipeline steel in thin layers of near-neutral and high pH solutions. The key findings are:
1) In a thin near-neutral pH solution layer (60 μm), passivity could develop on the steel surface due to iron ions reaching saturation, allowing iron carbonate precipitation. Thicker layers inhibited passivation.
2) In thin high pH solution layers, the steel maintained passivity and cathodic reactions were limited by oxygen diffusion. Polarization behavior was independent of layer thickness.
3) Bulk solution tests showed active corrosion in near-neutral pH but passivity in high pH, without cathodic
2006 01 25_icrp
1) A simulation model was developed to model the profile evolution of sub-100nm polysilicon gate etching using Cl2/O2 and Cl2/HBr/O2 plasmas.
2) The model uses Monte Carlo simulations and considers particle transport, surface reactions, and forward reflection of ions.
3) Simulations showed that the addition of O2 leads to inwardly bent profiles due to passivation layer formation, while higher ion energies result in deeper microtrenches due to increased reflection of ions from sidewalls.
Corrosion Behaviour of 6061 Al-SiC Composites in KOH Medium
The present research work deals with the corrosion behaviour of 6061 Al-15% (vol) SiC(P) composites. The addition of the
reinforcement like SiC to Aluminium has been reported to decrease the corrosion resistance of the matrix due to several reasons, one
of them being galvanic action between the reinforcement and the matrix. In the present work, the corrosion behaviour of 6061 Al-15%
(vol) SiC(P) composites in KOH at different concentration (0.5M, 1M, 1.5M) and different temperature (300C, 350C, 400C, 450C, 500C)
was determined by Tafel extrapolation technique. The inhibition action of 8-Hydroxyquinoline on corrosion behaviour of 6061 Al-
15% (vol) SiC(P) composites in KOH at different concentration of inhibitor (200ppm, 400ppm); different concentration of medium
(0.5M, 1M,1.5M) and different temperature (300C, 350C, 400C, 450C, 500C) was investigated. The results indicate that corrosion rate
of Al-SiC composite in KOH increases as the concentration of medium increases and also as temperature of medium increases. The
results indicate that the inhibitor is moderately effective in inhibiting the corrosion of 6061 Al-15% (vol) SiC(P) composites. As the
inhibitor concentration increases, the corrosion rate decreases. The surface morphology of the metal surface was investigated using
scanning electron microscope (SEM). Activation energy was evaluated using Arrhenius equation, and enthalpy of activation and
entropy of activation values were calculated using transition state equation
Corrosion Sl Part One
Corrosion science training aims to help participants recognize corrosion issues, avoid business impacts, and select appropriate materials. The training covers corrosion chemistry, forms of corrosion, and engineering considerations. It discusses how parameters like chemical composition, surface condition, temperature, and pH affect corrosion. Passivation creates a protective chromium oxide layer on stainless steel.
A high-capacity lithium-air battery with Pd modified carbon nanotube sponge c...
1) The document describes a lithium-air battery with a free-standing, highly porous carbon nanotube (CNT) sponge cathode modified with palladium (Pd) nanoparticles.
2) The Pd-CNT sponge cathode provides a continuous pathway for lithium ions, oxygen, and electrons to flow, enabling high capacity discharge reactions in the battery.
3) The battery utilizes an ionic liquid electrolyte and a lithium super ionic conductor (LiSICON) ceramic plate to protect the lithium metal anode. This allows the battery to operate stably in open air conditions with capacities as high as 9092 mAh/g.
Onyeachu et al., (2015)
The document characterizes the electrochemical corrosion behavior of a Ni-28wt.%Al composite coating compared to a pure Ni coating after 24 and 72 hours of immersion in 3.5% NaCl solution. Open circuit potential and polarization tests showed that the Al particles in the composite shifted the potential more negatively and increased the anodic dissolution rate after 24 hours compared to pure Ni. However, after 72 hours the composite exhibited lower anodic current density and slightly higher cathodic current than pure Ni. XPS analysis indicated the composite surface rapidly formed a protective Ni(OH)2 layer that thickened over time and became enriched with the highly corrosion resistant Al2O3, decreasing the corrosion rate and susceptibility to pitting for the composite
Madkour-1985-Journal_of_Chemical_Technology_and_Biotechnology._Chemical_Techn...
The document describes recommended flowsheets for the electrolytic extraction of lead and zinc from a polymetal ore found in Egypt called Umm-Gheig. It consists of three main parts:
1) Characterization of the ore through mineralogical, chemical and thermal analyses, showing it contains 30.7% zinc, 7.99% lead and other minerals.
2) Hydrometallurgical treatment experiments including leaching the ore with nitric acid and electrodepositing metals from the leach solutions. The effects of various parameters on current efficiency are examined.
3) Recommended flowsheets involving leaching with nitric acid, electrolytic extraction of lead as PbO2 or Pb, and zinc from
Madkour 1985-journal of-chemical_technology_and_biotechnology._chemical_techn...
Recommended Flowsheets for the Electrolytic Extraction of Lead and Zinc from Red Sea Polymetal Ore
The polymetal complex ore Umm-Gheig considered in Egypt as a rather rich source of lead and zinc is subjected to mineralogical, chemical, spectral, X-ray and differential thermal analyses. Hydrometallurgical treatments based on leaching, precipitation and electrodeposition of metal from the ore are established. The influences of current density, temperature and metal ion concentration on the Faradic current efficiency are discussed. Advantages and disadvantages of flow- sheets and various approaches depending on convenient baths for the electro- deposition of metals are investigated. The results of electron microscopic investiga- tion confirmed by metal value data given in the A.S.T.M. cards coincide well with those given by chemical analysis.
Some factors affecting on the behavior ofsteel electrode in citric acid solut...
Potential-time curves are constructed for the steel electrode in naturally aerated citric acid solutions devoid of
and containing some aggressive and inhibitive compounds. Cl- and SO4
2- ions cause the destruction of passivity
and initiation of pitting corrosion. The rate of oxide film growth by citric acid and oxide film destruction by Cl-
and SO4
2- ions follows a direct logarithmic law as evident from the linear relationships between the open-circuit
potential and the logarithm of immersion time. Urea, phenylhydrazine and 1,2-phenylenediamine compounds
inhibit the pitting corrosion of steel. The rate of oxide film healing and thickening increases with their
concentrations. In presence of constant inhibitor concentration, the efficiency of pitting inhibition increases in
the order: (weak) urea<phenylhydrazine><1,2-phenylenediamine(strong).
Improvement of tribological properties of Ti6Al4V alloy by nitrogen ion impla...
Ion implantation is the most versatile and superior surface modification method. It has several
advantages compared with other modification methods. In this study, the nitrogen was implanted by a process of
ion implantation at 60 keV with different fluences of 1 x 1016, 5 x 1016, 1x1017 and 5 x 1017 ions/cm2
. Corrosion
resistance of Ti6Al4V and ion implanted Ti6Al4V were investigated by an electrochemical test, at 370C in
normal saline solution. ICP-AES studies were carried out to determine amount of ions leached out from samples
when kept immersed in normal saline solution. The implanted samples showed variation in the corrosion
resistance and microhardness with varying fluences. The sample implanted at 1 X 1017 ions/cm2
showed an
optimum corrosion resistance.
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Electrochemical Stability of Stainless Steels-Made Alkaline Water Electrolysi...
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ORGANIC COATINGS FOR CORROSION PROTECTION OF TRANSFORMERS IN UNDERGROUND CHAM...
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Inhibitive properties, thermodynamic, kinetics and quantum
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Characterization of corrosion of x70 pipeline steel in thin electrolyte layer
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Corrosion Behaviour of 6061 Al-SiC Composites in KOH Medium
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Some factors affecting on the behavior ofsteel electrode in citric acid solut...
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Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Equivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Sharlene Leurig - Enabling Onsite Water Use with Net Zero Water
Sharlene Leurig - Enabling Onsite Water Use with Net Zero WaterTexas Alliance of Groundwater Districts
Presented at June 6-7 Texas Alliance of Groundwater Districts Business Meeting原版制作(carleton毕业证书)卡尔顿大学毕业证硕士文凭原版一模一样
原版纸张【微信：741003700 】【(carleton毕业证书)卡尔顿大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless ReproducibilityUniversity of Rennes, INSA Rennes, Inria/IRISA, CNRS
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
ESR spectroscopy in liquid food and beverages.pptx
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Thornton ESPP slides UK WW Network 4_6_24.pdf
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
and the revised UWWTD (Urban Waste Water Treatment Directive)”
Authoring a personal GPT for your research and practice: How we created the Q...
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/Phenomics assisted breeding in crop improvement
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
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Polimeros condutores
- 1. Uso de polímero condutor na produção de Tinta Inteligente Poliuretana Anticorrosiva UNIVERSIDADE FEDERAL DE ALAGOAS PROGRAMA DE PÓS-GRADUAÇÃO EM MATÉRIAIS CIÊNCIAS DOS MATERIAIS II ALUNOS: Diego Libel Pereira daFonseca Rafael da Silva Oliveira de Holanda
- 2. O ARTIGO...
- 3. INTRODUÇÃO
- 4. ENSAIOS ELETROQUÍMICOS Voltametria Cíclica (VC) A análise de VC em AISI 1010 sem revestimento busca identificar os valores de potencial de início e fim da zona de passivação do metal ao ser exposto à solução aquosa de H2 SO4 2 mol/L. Este ensaio ocorreu a partir da varredura de potencial de -1,00 a +2,00 𝑽Ag/AgCl.
- 5. ENSAIOS ELETROQUÍMICOS Potencial de Circuito Aberto (OCP) Os ensaios foram realizados em amostras de aço AISI 1010 sem revestimento e com revestimentos de TCP e a TIP, em período pré- determinado de 18.000 s. O aço sem revestimento encontra se em um processo de corrosão instalado.
- 6. ENSAIOS ELETROQUÍMICOS Espectroscopia de Impedância Eletroquímica (EIE) Figura 7 mostra o diagrama de Nyquist do ensaio de EIE do aço AISI 1010 sem revestimento para um período de 0,25 h de exposição a solução aquosa de H2 SO4 2 mol/L, onde foi verificado um arco com valor de resistência na ordem de 1400 Ω.cm2. PAni EB contida nas TIP não sofre alterações significativas de sua capacidade eletroquímica em formar para redox no sistema metal/revestimento/ eletrólito.
- 7. CONCLUSÃO Produção de PAni EP e sua passagem pelo processo de desdopagem para a PAni EB, permitiu realizar a produção de um binder de PAni EB pelo uso do solvente CH2 Cl2; O uso do plastificante CMF, que não possui propriedades eletroquímicas que podem interferir nas características desejadas do PIC.; Os filmes formados no binder não teve grandes alterações eletroquímicas; A TIP pode ser uma alternativa de revestimento anticorrosivo ativo, por determinado período.