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PermeabilityCell Membrane PermeabilityCapillary PermeabilityTight JunctionsBlood-Brain BarrierBlood Glucose Self-MonitoringWaterLactuloseFlowmetersMannitolMitochondrial Membrane Transport ProteinsDentin PermeabilityPeak Expiratory Flow RateEvans BlueOccludinOsmosisElectric ImpedanceIntestinal AbsorptionAquaporinsMitochondrial SwellingTime FactorsCalciumBiological TransportMembrane PotentialsCaco-2 CellsAltitudeAquaporin 1Zonula Occludens-1 ProteinDextransPotassiumSodiumBlood-Retinal BarrierEndothelium, VascularIon ChannelsFluoresceinIntercellular JunctionsChloridesDiffusionCells, CulturedExtraterrestrial EnvironmentAlbuminsCyclophilinsIntestinal MucosaModels, BiologicalReagent StripsHydrogen-Ion ConcentrationEndothelial CellsRats, Sprague-DawleyIntracellular MembranesFluoresceinsInulinClaudinsMitochondriaBlood-Aqueous BarrierClaudin-5CapillariesFluorescein-5-isothiocyanateVascular Endothelial Growth Factor ABlood-Air BarrierDiagnostic EquipmentLungMarsMembrane ProteinsWalkingSkin AbsorptionEquipment and SuppliesMitochondria, LiverReproducibility of ResultsPulmonary EdemaElectric ConductivityEquipment DesignSpacecraftSucroseMembranes, ArtificialRabbitsCyclosporineBlood GlucoseEpitheliumCalibrationBiological Transport, ActiveOsmolar ConcentrationRats, WistarCell MembraneTight Junction ProteinsSkinUreaDiffusion Chambers, CultureKineticsIntestinesBody WaterMicrocirculationFluorescent DyesDose-Response Relationship, DrugVascular Endothelial Growth FactorsVoltage-Dependent Anion ChannelsMobile ApplicationsRubidiumClaudin-1Bongkrekic AcidTemperature
PorosityVacuumKilogramTesterAmpereFabricFaciesSedimentsHeterogeneityShaleMonitoring wellsSymbolSelectiveTypicallyUnitsRestrictEnamelAnodized aluminiumThicknessResistanceInductanceCoalTextureBarrierFacilitateSignificantlyMeasurementsSmart meterWaterFlowCellLengthLinearMethodsPeakMaterialFilmMediumDataQualityFilmsReduceEffects
Porosity7
  • In order to increase the permeability of gas, hydrophilic properties, selective layer thickness, and porosity of the membranes have to be improved. (hindawi.com)
  • NMR can reflect the level of porosity and permeability of the coal reservoir. (degruyter.com)
  • In a well area with good sealing capability, the right peak of the NMR logging T 2 spectrum of the coal seam roof and floor is low, the T 2 spectrum peak amplitude is low, and there are low porosity and poor permeability. (degruyter.com)
  • The CBM occurrence condition is superior, but the pore-fracture is poorly developed and the coal reservoir has low porosity, low permeability and high heterogeneity characteristics. (degruyter.com)
  • These features allow to test applicability of the NMR technique in determination of porosity and permeability of coal. (degruyter.com)
  • I analyzed the porosity and permeability of pumices during this eruption and we modeled their relationships using a model based on the percolation theory. (uoregon.edu)
  • Pores in shale gas reservoirs are dominated by nanopores, resulting in lower porosity and permeability [ 7 - 9 ], which necessitates the use of advanced fracturing technology during the exploitation. (hindawi.com)
Vacuum10
  • The permeability constant μ0, also known as the magnetic constant or the permeability of free space, is the proportionality between magnetic induction and magnetizing force when forming a magnetic field in a classical vacuum. (wikipedia.org)
  • The concept of permeability arises since in many materials (and in vacuum), there is a simple relationship between H and B at any location or time, in that the two fields are precisely proportional to each other: B = μ H {\displaystyle \mathbf {B} =\mu \mathbf {H} } , where the proportionality factor μ is the permeability, which depends on the material. (wikipedia.org)
  • The permeability of vacuum (also known as permeability of free space) is a physical constant, denoted μ0. (wikipedia.org)
  • In the microscopic formulation of electromagnetism, where there is no concept of an H field, the vacuum permeability μ0 appears directly (in the SI Maxwell's equations) as a factor that relates total electric currents and time-varying electric fields to the B field they generate. (wikipedia.org)
  • The meter is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. (citizendium.org)
  • The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 meter apart in vacuum, would produce between these conductors a force equal to 2 x 10 -7 newton per meter of length. (citizendium.org)
  • the permeability of a vacuum (spacetime itself). (vlf.it)
  • The constant current which will produce a force of attraction whose value is $2 \times 10^{-7}$ newtons per metre of length between two straight , parallel conductors of infinite length and of infinitesimal circular cross-section placed one metre apart in a vacuum . (proofwiki.org)
  • mu_0$ denotes the vacuum permeability . (proofwiki.org)
  • With the current vacuum technology and sealing technology capabilities, without a sharp increase in testing costs, the air permeability testing device that meets the requirements of the national standard, and can test directly and accurately high barrier films can be developed by modifying the design of thesingle joint structure. (abrasiontesters.com)
Kilogram1
  • meter , kilogram , second , ampere , kelvin and candela -in 1971 mole was added as seventh base unit) to the "International System of Units. (citizendium.org)
Tester2
Ampere3
  • In SI units, permeability is measured in henries per meter (H/m), or equivalently in newtons per ampere squared (N/A2). (wikipedia.org)
  • The SI units of μ are volt-seconds/ampere-meter, equivalently henry/meter. (wikipedia.org)
  • Other units in the category of Electric current density include Abampere Per Square Centimeter (aA/cm 2 ), Ampere Per Square Centimeter (A/cm 2 ), Ampere Per Square Decimeter (A/dm 2 ), Ampere Per Square Inch (A/in 2 ), Ampere Per Square Meter (A/m 2 ), Coulomb Per Second Per Square Meter (C/s-m 2 ), and Milliampere Per Square Centimeter (mA/cm 2 ). (efunda.com)
Fabric1
  • The YG216 Fabric Moisture Permeability Meter is used to measure the moisture permeability of various fabrics (including moisture-permeable coated fabrics) and garment non-woven fabrics such as wadding and space cotton. (qinsun-tester.com)
Facies1
  • This study presents a numerical investigation of geological discontinues in the coalbed using reservoir simulations of the effects of partings and permeability facies and lithotype changes on the production performances of vertical and horizontal degasi. (cdc.gov)
Sediments3
  • In the outwash, fast seepage was associated with permeability variations in a thin (2 cm) layer of sediments at the top of the lakebed. (usgs.gov)
  • A Rowe & Barden consolidation cell enables the determination of compressibility/permeability characteristics of fine-grained sediments at confining pressures up to 2 MPa. (ub.edu)
  • The laboratory is also equipped with a Teka Berlin TK04 thermal conductivity meter and 6 Antares miniaturized temperature data loggers for geothermal studies in fine-grained sediments. (ub.edu)
Heterogeneity1
  • In the till, where seepage was slower than that in the outwash, a three-dimensional resistivity survey mapped a point of high seepage associated with heterogeneity (lower resistivity and likely higher permeability). (usgs.gov)
Shale4
  • Effects of longwall-induced subsurface deformations and permeability changes on shale gas well integrity and safety under shallow cover. (cdc.gov)
  • This paper presents the results of a 2018 NIOSH (National Institute for Occupational Safety and Health) study to evaluate longwall-induced subsurface deformations and permeability changes and their effects on shale gas well integrity and safety under shallow cover. (cdc.gov)
  • Measured permeability changes were incorporated into a preliminary calculation to evaluate the effect of a hypothetical shale gas well leak on longwall ventilation, which indicates negligible impact after completion of first panel mining. (cdc.gov)
  • The shale gas resources in China are abundant, and the recoverable volume is estimated to be about 261012 cubic meters [ 1 - 3 ]. (hindawi.com)
Monitoring wells2
  • One in-place inclinometer (IPI) well and three permeability monitoring wells were drilled and installed over a 38-m by 84-m centers abutment pillar. (cdc.gov)
  • In addition to the inclinometer well and monitoring wells, surface subsidence measurements and underground coal pillar pressure measurements were conducted as the first 457-meter-wide longwall panel on the south side of the abutment pillar mined by. (cdc.gov)
Symbol1
  • Relative permeability, denoted by the symbol μ r {\displaystyle \mu _{\mathrm {r} }} , is the ratio of the permeability of a specific medium to the permeability of free space μ0: μ r = μ μ 0 , {\displaystyle \mu _{\mathrm {r} }={\frac {\mu }{\mu _{0}}},} where μ 0 ≈ {\displaystyle \mu _{0}\approx } 4π × 10−7 H/m is the magnetic permeability of free space. (wikipedia.org)
Selective1
  • A transparent adhesive film possessing selective permeability combined with a hydrogel (Burnshield) may be effective in burn patients to reduce skin maceration, improve medication, control pain more effectively, and reduce the incidence of late complications (hypertrophic scars). (nih.gov)
Typically4
  • Permeability is typically represented by the (italicized) Greek letter μ. (wikipedia.org)
  • However, inside strong magnetic materials (such as iron, or permanent magnets), there is typically no simple relationship between H and B. The concept of permeability is then nonsensical or at least only applicable to special cases such as unsaturated magnetic cores. (wikipedia.org)
  • Wireless smart meters typically produce atypical, relatively potent and very short pulsed RF/microwaves whose biological effects have never been fully tested. (prlog.org)
  • Typically, the permeability of asymmetric polymeric gas separation membranes prepared by phase inversion techniques is quite low and unsuitable for practical use. (hindawi.com)
Units3
  • The SI units of H are amperes/meter. (wikipedia.org)
  • The SI units of B are volt-seconds/square meter (teslas). (wikipedia.org)
  • Magnetic field intensity, H, expressed in units of amperes per meter, produces a magnetic flux density , B, expressed in volt seconds per square meter. (vlf.it)
Restrict1
  • For example, areas with a surface geology of low permeability restrict the BWM and coincide with dry-season groundwater levels less than 8 metre below ground that render groundwater inaccessible to households reliant on shallow wells. (bdnews24.com)
Enamel2
  • Aim: To evaluate the effect of different in-office bleaching agents on the permeability, roughness and surface microhardness of human enamel. (bvsalud.org)
  • There is concern that bleaching agents (hydrogen peroxide and carbamide peroxide) bring some damage to enamel surface, like increased roughness 3-4 and permeability 5-6 . (bvsalud.org)
Anodized aluminium1
  • The Elcometer 5100 Payne Permeability Cups are made entirely from anodized aluminium and are used to determine the permeability of films of paints, varnish, plastic, cellophane, etc. (elcometerusa.com)
Thickness1
  • The water evaporates or is absorbed and, after a certain time, the weight change relative to the film thickness is calculated, indicating the degree of permeability or permeance. (elcometerusa.com)
Resistance1
Inductance2
  • Is this just an artifact of my inductance meter, or is the aluminum actually causing a drop in inductance? (diyaudio.com)
  • The measured inductance is indeed being lowered by the aluminum, it is not an artifact of the meter. (diyaudio.com)
Coal4
  • A study site was selected over a southwestern Pennsylvania coal mine, which extracts 457-meter-wide longwall faces under 147 meters of cover. (cdc.gov)
  • Greater development of fracture and better permeability in the coal reservoir cause greater right peak of T 2 relaxation time spectrum of the NMR. (degruyter.com)
  • The Qinshui basin contains a developed medium-high rank coal in which the burtial depth beneath surface is about 600-1000 meters. (degruyter.com)
  • NIOSH's Office of Mine Safety and Health Research, in collaboration with MSHA Technical Support, has devised a prototype handheld device, Coal Dust Explosibitlity Meter (CDEM), to assess the potential explosibility of a coal and rock dust mixture. (cdc.gov)
Texture1
  • We showed that, contrary to the conventional view, magma fragmentation during sustained explsoive eruptions occurs over a finite lengths of few tens of meters during which magma texture, and especially permeability, evolves rapidly. (uoregon.edu)
Barrier4
  • Recent publications have documented the generation of free radicals, increased permeability of the blood brain barrier allowing potentially toxic chemicals to enter the brain, induction of genes, as well as altered electrical and metabolic activity in human brains upon application of cell phone RF/microwaves similar to those produced by smart meters. (prlog.org)
  • In addition, IL-33 treatment impaired epithelial barrier permeability in vitro and in vivo, whereas absence of ST2 enhanced wound healing response upon acute mechanical injury in the colon. (bmj.com)
  • Sometimes a high barrier property to block oxygen is needed to prevent oxygen intrusion, and sometimes a low barrier property with better oxygen permeability is required. (abrasiontesters.com)
  • air permeability and should reasonably deal with the problem of high barrier film air permeability test. (abrasiontesters.com)
Facilitate1
  • In the process, to facilitate level access, a 17-metre-high sculpture, Richard Serra's Fulcrum comprising five trapezoidal propped steel plates, had to be lowered, which in turn enabled the insertion of an additional commercial floor. (architecture.com)
Significantly1
  • People in proximity to a smart meter are at risk of significantly greater aggregate of RF/microwave exposure than with a cell phone, not to mention the cumulative exposure received by people living near multiple meters mounted together, pole-mounted routers or utility collector meters using a third antenna to relay RF signals from 500 to 5,000 homes. (prlog.org)
Measurements1
  • Conférence générale des poids et mesures - CGPM), which was established by the Metre Convention of 1875, brought together many international organisations to establish the definitions and standards of a new system and to standardise the rules for writing and presenting measurements. (wikipedia.org)
Smart meter3
  • In California, the second phase of the smart meter 'opt out' proceeding took place at the California Public Utilities Commission in San Francisco on May 16th, overseen by Administrative Law Judge (ALJ) Amy Yip Kikugawa. (stopsmartmeters.org)
  • Why would the CPUC want to suppress the transcript of a public, judicial proceeding paid for by the taxpayer and critical to the outcome of how the smart meter 'opt out' is paid for, who pays, and how it is structured? (stopsmartmeters.org)
  • RF levels from various scenarios depicting normal smart meter installation and operation may violate even the out-of-date US public safety standards which only consider acute thermal effects. (prlog.org)
Water1
  • The permeability to water vapor of a semipermeable film in contact with liquids is measured in grams per meters squared every 24 hours at 37 degrees C, and is defined as the moisture vapor transmission rate. (nih.gov)
Flow1
  • The 4340 Densometer utilizes electronic flow meters to quickly and accurately measure the air permeability of a sample within seconds. (thwingalbert.com)
Cell4
  • High frequency EMFs such as the microwaves used in cell phones, smart meters, Wi-Fi and cordless ˜DECT" phones, appear to be the most damaging when used commonly. (prlog.org)
  • In addition to the need to take precaution, we need research to develop safer technologies to reduce our exposure to electromagnetic radiation from wireless devices including smart meters, Wi-Fi, and cell phones. (prlog.org)
  • In addition, cell membrane permeability for ions also increased under anesthesia. (frontiersin.org)
  • The magnetic nanoparticles, each billionths of a meter in size, seep into the tissue of the tumor cell due to the high permeability of these vessels. (weeksmd.com)
Length1
  • 4) compact design: length and width are not more than 1 meter, no work space requirements. (phrmg.org)
Linear1
  • In order to represent the magnetic response of a linear material with permeability μ, this instead appears as a magnetization M that arises in response to the B field: M = ( μ 0 − 1 − μ − 1 ) B {\displaystyle \mathbf {M} =\left(\mu _{0}^{-1}-\mu ^{-1}\right)\mathbf {B} } . The magnetization in turn is a contribution to the total electric current-the magnetization current. (wikipedia.org)
Methods1
  • Using a series of electrical resistivity geophysical methods in combination with hydrologic data to locate heterogeneities that affect seepage rates can help guide seepage meter placement. (usgs.gov)
Peak1
  • This is the same judge who nearly cleared the room after we asked questions about the peak pulse of radiation from smart meters on September 15th of last year. (stopsmartmeters.org)
Material2
  • In electromagnetism, permeability is the measure of magnetization produced in a material in response to an applied magnetic field. (wikipedia.org)
  • The Handle-O-Meter uses a cantilever beam to depress a sample through a given slot opening to measure the flexibility of a material, taking into account the structure of the sample and surface friction of the test plates. (thwingalbert.com)
Film2
Medium1
  • expressed in Henrys per meter, is the magnetic permeability of the medium, the analog of electric permitivity. (vlf.it)
Data1
Quality1
  • The air permeability of flexible packaging materials such as plastic films and sheets directly affects the quality of their productspackaging. (abrasiontesters.com)
Films1
Reduce1
  • many scientists and medical experts urgently recommend that measures following the Precautionary Principle be applied immediately - such as using wired meters - to reduce biologically inappropriate microwave exposure. (prlog.org)
Effects1
  • caution is warranted because the growing variety of RF/microwave emissions produced by many wireless devices such as smart meters have never been tested for their potential biological effects. (prlog.org)