Molten-salt synthesis of porous La0.6Sr0.4Co0.2Fe0.8O2.9 perovskite as an efficient electrocatalyst for oxygen evolution |...
It was found that porosity correlates with both the iron content and the molten-salt approach. Benefiting from the large ...https://link.springer.com/article/10.1007%2Fs12274-018-2065-1
Minimum Porosity Formation in Pressure Die Casting by Taguchi Method
If you find out the causes and how to reduce the defects of castings will be of great significance in reducing the production ... The final MVLR model equation for porosity after substituting regression coefficients is as follows: ... Maximum Porosity. The maximum porosity analysis using the Shrinkage Porosity function of the Visual-Viewer comes defined in the ... Shrinkage porosity formation in pressure die casting is the result of a so much number of parameters. Figure 3 shows a cause ...https://www.hindawi.com/journals/mpe/2013/920865/
Guidebook 10 | Soil | Rock (Geology)
Find out porosity of soil and compare the differences. 1" thickness) on the top of the core. 2) Discuss the results with the ... Find out the pH using pH paper (with 4-5 hrs of collection of sample) iii) Find out the turbidity iv) Find out the total ... B) Macro porosity Deduct the values obtained in Sl No.(A) Micro porosity 1. 4. 2. 10 of Exp. Project 5: Population pressure on ... the calculated water holding capacity also indicates the total porosity of the soil. 3. Beaker. Experiment.3: Soil porosity ...https://www.scribd.com/document/63096118/Guidebook-10
US3149023A - Carbon-filled sheet and method for its manufacture - Google Patents
The porosity was found to be 33.6 c.f.m. on the Frazier Permeometer. ... The sheet was found to be 2.9 mils in thickness and to have a basis weight of 11.3 pounds (480 sheet--24 x 36'). The tensile ... The porosity was 54 c.f.m. on the Frazier Permeometer; the density was 0.238 gram per cubic centimeter; and the Mullen was 3.2 ... It has been found that the cationic agent must be added to the headbox dispersion in the amount of about 021-100 percent by ...https://patents.google.com/patent/US3149023A/en
Pore-scale Imaging and Characterization of Hydrocarbon Reservoir Rock Wettability at Subsurface Conditions Using X-ray...
Multiply the measured bulk volume by the measured helium porosity to find the pore volume. ... x and y are the distances from the center of the core plug used to find where to drill. (b) This panel shows a dry X-ray three- ... Find the most effective phase contrast between oil, brine, and rock by doping the brine phase, using KI to be the intermediate ... The oil recovery was found to be a function of wettability, similar to earlier core-scale studies51. However, at that time, the ...https://www.jove.com/video/57915/pore-scale-imaging-characterization-hydrocarbon-reservoir-rock
Patent US4309494 - Electrochemical cell having battery separator of ethylene-vinyl alcohol ... - Google Patents
... which accounts for the porosity found in the common type or the more conventional type of polyolefin battery separators. ... It has been found that with certain copolymer compositions these additives can be drastically reduced or totally eliminated. ... The precise formulation depends on the required porosity that the application calls for. One can also add from 1 to 10% of the ... It is also useful in imparting porosity to the battery separant. Plasticizers can be either of a water soluble or water ...http://www.google.ca/patents/US4309494
It is found that porosities are present on the outside surface of the capsule shell, but not on the inner surface of the shell ... Find out more about sending to your Kindle. Note you can select to send to either the @free.kindle.com or @kindle.com ... We find that the reciprocal-space methods reveal eigenmodes mainly below 5 MHz, indicative of the first five vibrational ... The nanoparticles of boehmites were found to be monocrystalline grains with characteristic habits and sizes of order of ten ...https://www.cambridge.org/core/search?filters%5Bkeywords%5D=transmission%20electron%20microscopy
Development and characterisations of WC-12Co microwave clad (Journal Article) | SciTech Connect
The developed clads were free from visible interfacial cracking and the clad porosity was found in the order of approximately ... POROSITY; SCANNING ELECTRON MICROSCOPY; STAINLESS STEEL-304; SUBSTRATES; TUNGSTEN CARBIDES; X-RAY DIFFRACTION; X-RAY ... assessment of porosity and microhardness. The WC-12Co clads developed with an approximate thickness of 1 mm, illustrated ...https://www.osti.gov/scitech/biblio/22403576-development-characterisations-wc12co-microwave-clad
COMSOL Conference 2016 User PresentationsBatteries, Fuel Cells, and Electrochemistry Presentations from the COMSOL Conference...
The optimal porosity function is found using the iterative gradient descent method. RESULTS: The optimal porosity is found ... Our goal is to find the domain's optimal porosity function that can make the oxygen-hydrogen reaction as uniform as possible. ... The optimal porosity design is given by , which increases from 0.42 to 0.65. With this porosity design, the corresponding ... It was found that combining optimization algorithm with FEM procedure is effective to find desirable parameters for ...https://www.comsol.nl/2016-user-presentations/batteries-fuel-cells-and-electrochemical-processes
Evaluating the closed porosity was found to be very dependent on the size of samples and image reconstructions. A connectivity ... We found that pNO3- formation via N2O5 uptake was significant at high altitudes (e.g., > 150 m), which was supported by the ... We also found that the N2O5 loss in this study is mainly attributed to its indirect loss via reactions of NO3 with VOCs and NO ... We find that firn is denser inside a 2 km wide ice-shelf channel which is confirmed by optical televiewing of two boreholes. ...https://www.atmos-chem-phys.net/17/8269/2017/acp-17-8269-2017-relations.html
1 - Cportal thinkforex
Chart for finding porosity and matrix composition from an FDC-SNP log combination in fresh water .ed. N Engl J Med 1990; ... If no cause of the vomiting is found and the symptoms are mild, urine should be collected for microscopy and culture and should ... Jelinek image processing techniques that may be found in any good text on general image processing can go a long way to ... 8 V VIN VOUT VOUT 3. Details on first-order conditions for convex pro- gramming problems can be found in Bertsekas (1999, 1993 ...http://binaryoptionfacts.com/cportal-thinkforex.html
Effect of Management Practices on Soil Microstructure and Surface Microrelief
The percentages of porosity found in both experimental sites (Table 2) show that the porosity at PBI is almost twice that ... Soil porosity includes textural porosity and structural porosity. Textural porosity is also known as matrix, intraaggregate, or ... The 3D images show that the high porosity is mainly due to textural porosity with a low degree of aggregation, and the absence ... Structural porosity, also called interaggregate or interpedal porosity, is produced by the pores between aggregates or soil ...https://www.hindawi.com/journals/aess/2012/608275/
Application of Spent Li-Ion Batteries Cathode in Methylene Blue Dye Discoloration
The values found for the porosity and the average size of grain were 42% and 31 m, respectively . ... The value found for surface area based on MB adsorption was 8.9 m2/g in pH = 7. With the pH ranging from 6 to 3, the MB ... The value found for surface area is 8.9 m2/g and the ZCP value occurs in pH = 2.95. Different from what is proposed in the ... The value found for surface area of the spent cathode was 8.9 m2/g and the ZCP value occurs in pH = 2.95. Different from what ...https://www.hindawi.com/journals/jchem/2017/3621084/
MIG weld facts and advice on aluminum welds | How to resolve aluminum weld issues| Aluminum MIG weld facts at weldreality
Examine the broken weld surface for porosity. Clean looking, small pore porosity is found in the best of aluminum welds. ... All mentioned can form hydrocarbons causing serious porosity which can weaken the weld. WELD POROSITY IS MORE OF A CONCERN WITH ... Remember you can always find porosity in the alum weld, the real question is how much is acceptable and what inspection and ... Blackish looking small porosity often results from lubricants from the material surface. Small gray, oxidized weld porosity ...http://weldreality.com/aluminumalloys.htm
Materials | Free Full-Text | Antimicrobial Activity of Chitosan-Carbon Nanotube Hydrogels
The porosity of the hydrogels were found to be ,94%. Dispersion of chitosan was observed in the CNT matrix by normal ... The porosity of the hydrogels were found to be ,94%. Dispersion of chitosan was observed in the CNT matrix by normal ...http://mdpi.com/1996-1944/7/5/3946
Flow in pipe with porous region - How to define cellzone? -- CFD Online Discussion Forums
... porosity --, FOAM FATAL ERROR: cannot find porous cellZone porosity From function Foam::porosityModel::porosityModel(const Foam ... No MRF models present Creating porosity model list from porosityProperties Porosity region porosity1: selecting model: ... I read about CellZone and Setset, but I can't find exactly what must I write and were I'm using porousSimpleFoam and blockMesh. ... no convergence criteria found. Calculations will run for 100 steps. Reading field p Reading field U Reading/calculating face ...https://www.cfd-online.com/Forums/openfoam-meshing-blockmesh/171818-flow-pipe-porous-region-how-define-cellzone.html
Influence of solvent concentration on the microstructure of SiO2−TiO2 sol-gel films | SpringerLink
The porosity volume fraction was found to reach a minimum when the ethanol volume ratio is near 4. ... The latter depends on the microstructure of the films and, more particularly, the porosity, which is studied here. A series of ... The influence of the ethanol/(Si+Ti)alkoxides volume ratio on the porosity was investigated by Ellipsometry, Infrared ...https://link.springer.com/article/10.1007/BF02436847
Porous silicon - Wikipedia
It was also found that a silicon wafer with medium to low porosity displayed more stability. Hence, the porosity of porous ... It was found that high porosity mesoporous layers were completely removed by the simulated body fluids within a day. In ... A study by Canham in 1995 found that "a 1 µm thick layer of high porosity silicon completely dissolved within a day of in-vitro ... The first sign of porous silicon as a bioactive material was found in 1995. In the conducted study, it was found that ...https://en.wikipedia.org/wiki/Porous_silicon
The Fortnightly Review › Therianthropes and vents.
We seek to find the porosity of borders. Our language insists that it believes in Baudelaire's correspondences, even when our ... And yet we can argue that it doesn't disappear so much as find itself internalized, or even introjected. Dr Jekyll and Mr Hyde ... Milton found what Yeats would have called his anti-self in the demonic figure, not in the divine one. Prosopopeia is choosy ... Marsyas finds the flute discarded by the goddess Athena because blowing on it distorts her face and makes her nymphs laugh. She ...http://fortnightlyreview.co.uk/2013/10/therianthropes-allegory/
Water Fluoridation: Revisiting the Risk/Benefit Ratio - Dr. Cindy Russell
It is defined as a hypomineralization of enamel and has greater surface and subsurface porosity than is found normally. The ... find nothing. In study after study she found that brain function was vulnerable to fluoride, the effects on behavior depended ... Fluorosis is found in 22% of the population in the US overall (1) and in optimally (0.7-1.2 ppm) fluoridated communities over ... ppm have been found to affect upstream migration of endangered salmon species in the Columbia River, contributing to increased ...http://nofluoride.com/Dr_Russell_statement.cfm
Open Access Journals
Polymer nanofiber structures were found in the crack regions of the catalyst layer, which appear due to the internal stress ... The stressed electrodes demonstrated higher porosity in comparison to the unstressed ones on the condition of no external ... In the hot-pressed electrodes, we found more closed contact between the electrode components, reduced particle size, polymer ... The electrode porosity was found to depend on the ionomer content. ...http://www.aimspress.com/article/10.3934/matersci.2017.6.1289
MANUFACTURING TECHNOLOGY - PDF
Often the oxides and porosity are found. Porosity is also often found out after machining operations. This work proposes non- ... Analysis of these nonconformities allows for process improvement by finding new ways of process leading. Keywords: quality, ... with the goal to find out the problem before machining with minimal losses. Keywords: Pressure Tightness, Leakage, High ...http://docplayer.cz/1130117-Manufacturing-technology.html
LiFeSO4F as a Cathode Material for Lithium-Ion Batteries : Synthesis, Structure, and Function
In the preparation of cast electrodes suitable for use in commercial cells, reducing the electrode porosity was found to be a ... The electrochemical performance of as-prepared tavorite LiFeSO4F was found to be severely restricted due to residual traces of ...http://www.diva-portal.org/smash/record.jsf?pid=diva2:855021
Fabrication of rnacroporous cement scaffolds using PEG particles : In vitro evaluation with induced pluripotent stem cell...
The size and content of PEG particles was found to affect scaffold porosity, and thus mechanical properties. Irrespective of ... The record could not be found. The reason may be that the record is no longer available or you may have typed in a wrong id in ... Drug releasing scaffolds were fabricated to examine whether the low porosity of hsCPC impeded drug release during a 4 week ... Scaffold pore size and porosity, essential for cell infiltration and tissue ingrowth, were tuned by varying the content and ...http://uu.diva-portal.org/smash/record.jsf?pid=diva2:1040414
US3253978A - Method of forming an inorganic waterlaid sheet containing colloidal silica and cationic starch - Google...
The density was found to be 0.259 gram per cubic. centimeter, the Mullen 1.4 pounds and the porosity 85 c.f.m. on the Frazier ... The density of the sheet was 0.274 gram per cubic centimeter, and the porosity was found to be 33.2 c.f.m. on the Frazier ... such as porosity, or with the papermaking operation. It has been found that the.cationic agent must be added to the headbox in ... The porosity of these sheets, of course, will vary depending upon the exact composition thereof. As is evident from the process ...https://patents.google.com/patent/US3253978A/en