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36 results for “solute concentrations”
Dataset for: Diurnal patterns in solute concentrations measured with in situ UV-Vis sensors: natural fluctuations or artefacts?
<p>This dataset contains high-resolution (10-minute interval) data for nitrate, dissolved organic carbon, precipitation and discharge at four measurement stations (NF, SHA, TTP, OUT) in the South West Mau, Kenya. This data was used for the analysis of diurnal patterns in nitrate and dissolved organic carbon concentrations. The zipped folder contains the following files and data:</p> <ul> <li>Calibration.csv: <ul> <li>site = name of measuring site</li> <li>date = date and time of grab sample (yyyy-mm-dd hh:mm:ss)</li> <li>DOC = dissolved organic carbon concentration in grab sample (mg C/L)</li> <li>nitrate = nitrate concenctration in grab sample (mg N/L)</li> </ul> </li> <li>Files with suffix ".ts.csv" (time series data from 1-11-2014 to 31-10-2019; prefix indicates measuring site): <ul> <li>date = date and time of measurement (yyyy-mm-dd hh:mm:ss)</li> <li>nit.raw = nitrate concentration measured by sensor (mg N/L)</li> <li>nit.flag = indication of validity of nitrate measurement (if NA, measurement is valid; for explanation of flags, see supplement of <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017WR021592">Jacobs et al. 2018</a>)</li> <li>nit.proc = processed nitrate concentration (mg N/L)</li> <li>nit.bg = background concentration of nitrate (48-h moving median; mg N/L)</li> <li>nit.patt = deviation from background concentration of nitrate (nit.proc minus nit.bg; mg N/L)</li> <li>doc.raw = dissolved organic carbon concentration measured by sensor (mg C/L)</li> <li>doc.flag = indication of validity of dissolved organic carbon measurement (if NA, measurement is valid)</li> <li>doc.proc = processed dissolved organic carbon concentration (mg C/L)</li> <li>doc.bg = background concentration of dissolved organic carbon (48-h moving median; mg C/L)</li> <li>doc.patt = deviation from background concentration of dissolved organic carbon (doc.proc minus doc.bg; mg C/L)</li> <li>p = precipitation (mm/10 mins)</li> <li>q = discharge (m³/s)</li> <li>sensor = serial number of sensor</li> </ul> </li> <li>Files with suffix ".exp.csv" (data for sensor comparison experiment from 5-9-2017 to 1-12-2017; prefix indicates measuring site): <ul> <li>date = date and time of measurement (yyyy-mm-dd hh:mm:ss)</li> <li>prec = precipitation (mm/10 mins)</li> <li>nit.orig = processed nitrate concentration measured by fixed sensor (mg N/L)</li> <li>nit.bg.orig = background concentration of nitrate measured by fixed sensor (48-h moving median; mg N/L)</li> <li>nit.patt.orig = deviation from background concentration of nitrate measured by fixed sensor (nit.orig minus nit.bg.orig; mg N/L)</li> <li>nit.dup = processed nitrate concentration measured by mobile sensor (mg N/L)</li> <li>nit.bg.dup = background concentration of nitrate measured by mobile sensor (48-h moving median; mg N/L)</li> <li>nit.patt.dup = deviation from background concentration of nitrate measured by mobile sensor (nit.dup minus nit.bg.dup; mg N/L)</li> <li>doc.orig = processed dissolved organic carbon concentration measured by fixed sensor (mg C/L)</li> <li>doc.bg.orig = background concentration of dissolved organic carbonmeasured by fixed sensor (48-h moving median; mg C/L)</li> <li>doc.patt.orig = deviation from background concentration of dissolved organic carbonmeasured by fixed sensor (doc.orig minus doc.bg.orig; mg C/L)</li> <li>doc.dup = processed dissolved organic carbonconcentration measured by mobile sensor (mg C/L)</li> <li>doc.bg.dup = background concentration of dissolved organic carbonmeasured by mobile sensor (48-h moving median; mg C/L)</li> <li>doc.patt.dup = deviation from background concentration of dissolved organic carbon measured by mobile sensor (doc.dup minus doc.bg.dup; mg C/L)</li> <li>set = experimental treatment</li> </ul> </li> </ul>
Analysis of particles size distributions in Mg(OH)2 precipitation from highly concentrated MgCl2 solutions
<p>Magnesium is a raw material of great importance, which attracted increasing interest in the last years. A promising<br> route is to recover magnesium in the form of Magnesium Hydroxide via precipitation from highly concentrated<br> Mg2+ resources, e.g. industrial or natural brines and bitterns. Several production methods and<br> characterization procedures have been presented in the literature reporting a broad variety of Mg(OH)2<br> particle sizes. In the present work, a detailed experimental investigation is aiming to shed light on the<br> characteristics of produced Mg(OH)2 particles and their dependence upon the reacting conditions. To this<br> purpose, two T-shaped mixers were employed to tune and control the degree of homogenization of reactants.<br> Particles were analysed by laser static light scattering with and without an anti-agglomerant treatment based<br> on ultrasounds and addition of a dispersant. Zeta potential measurements were also carried out to further assess<br> Mg(OH)2 suspension stability.</p>
Data for the manuscript titled "Solute front shear and coalescence control concentration gradient dynamics in porous micromodel"
<p>Concentration images and data for plots for the manuscript "Solute front shear and coalescence control concentration gradient dynamics in porous micromodel" submitted for publication in Geophysical Research Letters.</p> <p>See the README file for explanations on the data file.</p> <p><strong>Movie captions:</strong></p> <p><strong>Movie S1:</strong> Concentration field for the Péclet Pe = 33 experiment. Solid pillars are represented by the gray discs, and the colormap corresponds to the rescaled concentration <span class="math-tex">\(c/c_\mathrm{max}\)</span>. The black line represents the solute front, which is the boundary of the continuous <span class="math-tex">\(c/c_\mathrm{max} < 0.5\)</span> region within the porous medium. The x- and y-coordinates of the porous medium length and width (respectively) are rescaled by the average pore diameter <span class="math-tex">\(\lambda\)</span>.</p> <p><strong>Movie S2:</strong> Concentration gradient field for the Pe = 33 experiment. Solid pillars are represented by the gray discs, and the colormap corresponds to the rescaled gradient <span class="math-tex">\( a \nabla c / c_\mathrm{max}\)</span>. The x- and y-coordinates of the porous medium length and width (respectively) are rescaled by the average pore diameter <span class="math-tex">\(\lambda\)</span>.</p> <p><strong>Movie S3:</strong> Concentration field for the Pe = 1104 experiment. Solid pillars are represented by the gray discs, and the colormap corresponds to the rescaled concentration <span class="math-tex">\(c/c_\mathrm{max}\)</span>. The black line represents the solute front, which is the boundary of the continuous <span class="math-tex">\(c/c_\mathrm{max} < 0.5\)</span> region within the porous medium. The x- and y-coordinates of the porous medium length and width (respectively) are rescaled by the average pore diameter <span class="math-tex">\(\lambda\)</span>.</p> <p><strong>Movie S4:</strong> Concentration gradients field for the Pe = 1104 experiment. Solid pillars are represented by the gray discs, and the colormap corresponds to the rescaled gradient <span class="math-tex">\( a \nabla c / c_\mathrm{max}\)</span>. The x- and y-coordinates of the porous medium length and width (respectively) are rescaled by the average pore diameter <span class="math-tex">\(\lambda\)</span>.</p>
Essential oil-containing solutions release low Ca and P concentrations into the dental enamel without morphology alterations
<p><strong>Background. </strong>The use of natural products such as essential oils has been suggested due to their promising pharmacological effects and economic viability.</p> <p>Aim. To determine hydrogenic potential (pH), titratable acidity (TA), and ion concentrations of five solutions containing essential oils (EO) and evaluate ion concentrations, enamel surface loss, and morphology.</p> <p><strong>Materials & Methods. </strong>The pH, TA, calcium (Ca), potassium (K), and sodium (Na) concentrations of five EO-containing solutions were measured. Bovine enamel specimens were submitted to two daily 30-sec immersions in artificial saliva, citric acid, distilled water, BaCloTea, GeLaTeaPep, EucaLem, Cinnamon, or Spearmint solutions for 14 days. Ca, K, Na, and phosphorus (P) were quantified through ions chromatography, enamel surface loss was determined by profilometry, and surface morphology was qualitatively analyzed through scanning electron microscopy. Data were submitted to one-way ANOVA and Tukey (p<0.05).</p> <p><strong>Results. </strong>The five EO-containing solutions presented significantly lower pH values than distilled water (p<0.05). The GeLaTeaPep group presented a significantly higher TA value than BaCloTea (p<0.05), which in turn showed a significantly higher TA value than the other solutions (p<0.05). The distilled water presented significantly higher Ca, K, and Na concentrations than all EO-containing solutions (p<0.05). The enamel exposed to EO-containing solutions showed lower Ca and P concentrations than artificial saliva (control) as well as significantly higher surface loss; however, the surface morphology was similar to the artificial saliva.</p> <p><strong>Conclusion. </strong>EO-containing solutions have low pH, TA, and low concentrations of Ca, Na, and K. Moreover, enamel exposed to these solutions showed low Ca and P concentrations and slight surface loss without morphology alteration.</p>
Weekly Soil Solution Nutrient Concentrations in Bonanza Creek Experimental Forest for the summers of 1985-1988
The chemical composition of soil solution reflects solubility and ion exchange equilibria between a number of physical and biological components of the soil. The objectives of this study were to document soil solution chemistry for representative phases of the primary successional sequence on the Tanana River floodplain and to assess the effect of vegetation clearing in these sites. Soil solution samples were collected on a weekly basis using porous cup soil solution samplers located at 20, 50, and 150 cm below the soil surface. In addition, ground water and river water samples were collected at several sites which represented the successional stages typical of the Tanana River floodplain of interior Alaska. Magnesium, HCO3, Cl, Na, K, NO3, and PO4 showed the highest concentrations in the 50 cm layer at each site. Manganese, Fe, and Zn showed highest concentrations at the ground water level. Aluminum, and Ca showed decreasing concentrations with depth from the surface. Silicon displayed no specific depth trends. Ammonium was the only ion which was more concentrated in river water than in soil solution. Soil solution pH tended to show no specific depth trends. Conductivity of the soil solution was generally lower at deeper depths and was much lower in the river water. Sulfate, potassium, calcium, and manganese decreased in concentration from the early successional stages to the later successional stages, although some year to year variability did occur. All chemical parameters except zinc displayed at least one significant change in concentration due to vegetation clearing. These differences can be summarized broadly as effects on non-biologically cycled nutrients in the open shrub willow stage (III) and changes in the biological cycling of nutrients in the poplar-alder and mature white spruce stages (V and VIII, respectively). The stage V sites displayed the greatest response to treatment. In general the Stage V-A sites displayed significant increases, as a result o
Extracted dataset for: "Experiment and modeling of concentration-dependent diffusion in a solution with dual transport-phase flow for paper-based sensing"
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Temporal and Spatial Evolution of Pore Scale PDFs of Solute Concentrations to Study Incomplete Mixing in Porous Media
<p>C at M.I for Pe100 (sample): Sample (vector) of pore scale concentrations at Pe100 and five different times.</p> <p>C Chunk for All Pe (sample): Sample (3D block) of pore scale concentrations at the mixing interface for six Peclet number cases ( 10, 32, 100, 316, 1000, 3160) and at 11 different time steps extracted from the full size column. This is extracted using the semi-analytical appraoch to eliminate boundary effect.</p> <p>meanvelocities: Matlab Data of the pore scale longitudinally averaged velocity.</p> <p>MLE: Result of maximum likelihood estimation analysis for 18 different distribution functions (Excel file)</p> <p>SemiAnalytical: Matlab code for the implementation of the semi-analytical apporach.</p> <p>gamma_incomplete: Incomplete Gamma function required for the SemiAnalytical code.</p>
Simulations of a POPC lipid bilayer in water solution at various NaCl and CaCl2 concentration with Lipid14, TIP3p and Dang or ECC ions
<p>flat POPC bilayer simulations at various NaCl and CaCl2 concentration</p> <p>modelled with Lipid14 force field, TIP3p water model and Dang or ECC ions.</p> <p>file names report molar fraction of cations (i.e. not bulk concentrations).</p> <p>simulations performed with Gromacs 5.1.4 (*.xtc files) and openMM 7 (*.dcd files)</p> <p>simulation length 300 ns</p> <p>temperature 313 K (otherwise noted)</p>
Simulations of POPC lipid bilayer in water solution at various NaCl and CaCl2 concentrations using ECC-POPC force field and various water models
<p>Classical molecular dynamics simulations of a POPC lipid bilayer in water solution at various NaCl and CaCl2 concentrations using ECC-POPC force field parameters, various water models and ECC-ions.</p> <p>Simulations with SPC/E water model are in a separate Zenodo deposit<br> https://doi.org/10.5281/zenodo.1118266</p> <p>file names report molar fraction of cations (i.e. not bulk concentrations)</p> <p>simulations performed with Gromacs 5.1.4 (*.xtc files) and openMM 7 (*.dcd files)</p> <p>simulation length 300 ns</p> <p>temperature 313 K (otherwise noted)</p>
Solutal convection in 3D porous media - Horizontal and vertical concentration distributions over time at Rayleigh number 10000.
<p>Solutal convection in 3D porous media - Horizontal and vertical concentration distributions over time at Rayleigh number 10000. </p> <p> </p>
NIR Spectroscopy and Cobalt Electrochemistry Data set for Estimating Phosphate Concentration in Hydroponic Solution
<p>These data are raw-data used in the development of phosphate sensors for quantitative detection of phosphate ion concentrations in hydroponics nutrient solution. A total of 80 samples were used, of which 56 were used for model development and 24 were used for validation. See below for more details.</p> <p><br> 1. EMF response data from three cobalt electrodes<br> 2. The intensity value of the sample obtained from the NIR spectrometer (904 nm to 1600 nm)</p>
Simulations of POPC lipid bilayer in water solution at various NaCl, KCl and CaCl2 concentrations using ECC-POPC force field
<p>Classical molecular dynamics simulations of a POPC lipid bilayer in water solution at various NaCl, KCl and CaCl2 concentrations using ECC-POPC force field parameters, SPC/E water model and ECC-ions.</p> <p>file names report molar fraction of cations (i.e. not bulk concentrations)</p> <p>simulations performed with Gromacs 5.1.4 (*.xtc files) and openMM 7 (*.dcd files)</p> <p>simulation length 300 ns</p> <p>temperature 313 K (otherwise noted)</p> <p>Gromacs simulation setting is in the file npt_lipid_bilayer.mdp</p>
Effects of the Different Concentrations of Oral Dextrose Solution Applying With Supportive Positions on Pain During Heel-Stick Sampling in Premature Infants
ClinicalTrials.gov study NCT05177263. IPD Sharing: NO. Countries: 1. Publications: 1.
Lower Lugol's Solution Concentration on Reducing the Adverse Symptoms of Chromoendoscopy With Iodine Staining
ClinicalTrials.gov study NCT03180944. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Concentration of Antimicrobials in Catheter-lock Solutions
ClinicalTrials.gov study NCT01592032. IPD Sharing: Not stated. Countries: 1. Publications: 12.
A Trial to Evaluate the Efficacy and Safety of Two Concentrations of VBP-926 Solution for the Treatment of Chemotherapy-associated Paronychia in Cancer Patients
ClinicalTrials.gov study NCT03207906. IPD Sharing: NO. Countries: 1. Publications: 1.
High-concentration Small-volume Versus Low-concentration Large-volume Iodine Solution for Esophageal Chromoendoscopy
ClinicalTrials.gov study NCT06063941. IPD Sharing: NO. Countries: 1. Publications: 8.
Sirolimus Blood Concentrations on Conversion From Oral Solution to Tablets
ClinicalTrials.gov study NCT00166842. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Hydrothermally synthesized PZT film grown in highly concentrated KOH solution with large electromechanical coupling coefficient for resonator
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Iron-Carbon Solid Solution under Shock Compression: Implications for the Carbon Concentration in Earth's Inner Core
<p>Dataset for "Iron-Carbon Solid Solution under Shock Compression: Implications for the Carbon Concentration in Earth’s Inner Core"</p>
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