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Related Concept Videos

Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

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AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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Atomic Emission Spectroscopy: Instrumentation01:22

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The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
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Maxwell-Boltzmann Distribution: Problem Solving01:20

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Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
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Atomic Emission Spectroscopy: Overview01:20

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Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
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Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

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Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
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An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
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Scattering And Absorption of Light in Planetary Regoliths
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The JWS online simulation database.

Martin Peters1, Johann J Eicher2, David D van Niekerk2

  • 1Department of Systems Biology and Bioinformatics, University of Rostock, Rostock, Germany.

Bioinformatics (Oxford, England)
|January 29, 2017
PubMed
Summary
This summary is machine-generated.

JWS Online now features a Simulation Database for reproducible computational models. This platform allows easy access, modification, and export of simulation experiments, enhancing scientific reproducibility.

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Area of Science:

  • Computational Biology
  • Scientific Modeling

Background:

  • JWS Online is a web-based platform for model construction, simulation, and exchange.
  • Standardized model formats are crucial for interoperability.

Purpose of the Study:

  • To extend JWS Online with a database for curated simulation experiments.
  • To enable one-click reproduction of published simulation results.
  • To facilitate modification and export of simulation experiments in standard formats.

Main Methods:

  • Integration of a curated simulation experiment database into the JWS Online platform.
  • Implementation of direct URL access for simulation experiments.
  • Support for modifying and exporting simulation experiments.

Main Results:

  • A database of curated simulation experiments is now accessible via JWS Online.
  • One-click reproduction of published simulation results is enabled.
  • Users can modify and export simulation experiments in standard formats.

Conclusions:

  • The Simulation Database lowers the barrier for exploring computational models.
  • It assists users in creating valid simulation descriptions.
  • It significantly improves the reproducibility of published simulation experiments.