Attenuation factor definition

Attenuation factor means the ratio of the indoor air concentration arising from vapor intrusion to the subsurface vapor concentration at a point or depth of interest in the vapor intrusion pathway.
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Examples of Attenuation factor in a sentence

  • The equation is as follows: SGSL=IARL/∝Where:SGSL = Soil gas screening levelIARL = Risk-based screening level for industrial workers indoor airα = Attenuation factor (ratio of indoor air concentration to soil gas concentration) The industrial air screening level from the May 2013 EPA Regional Screening Level (RSL) Tables, adjusted to a 1e-05 cancer risk, was applied for the indoor air concentration (IARL) (http://www.epa.gov/region9/superfund/prg/rsl-table.html).

  • The equation is as follows: Where:SGSL=IARL/∝SGSL = Soil gas screening levelIARL = Risk-based screening level for industrial workers indoor airα = Attenuation factor (ratio of indoor air concentration to soil gas concentration) The industrial air screening level from the May 2013 EPA Regional Screening Level (RSL) Tables, adjusted to a 1e-05 cancer risk, was applied for the indoor air concentration (IARL) (http://www.epa.gov/region9/superfund/prg/rsl-table.html).

  • However, with the emergence of the third generation EWS which were based in the conflict area, the predictions were more accurate since the field monitors and analysts were based in the conflict area.

  • Attenuation factor compared between inside and outside the compartment for(a) ethanol flame, and (b) n-heptane flame.

  • C)Organic Peak Identification andCalculated Concentrations: Injection time (24-hr clock) Distance to peak (cm)Chart speed (cm/min) Retention time (min) Attenuation factor Peak area (mm<2>)Peak area X attenuation factor Plot peak area X attenuation factor against calculated concentration to obtain calibration curve.

  • Furthermore, the radiant heat attenuation factor by water spray was averaged over a 30 sec period (from 180 to 210 after ignition) after the flame had stabilized after sprinkler activation, and was calculated as follows: Attenuation factor [%] = HFG(N ) − HFG(W ) ×100HFG(N )(2) Fig.

  • Attenuation factor is low and X-ray scattering is reduced to minimum by using a moveable grid.The Uroview FD II X-ray system includes the following major components:• Uroview FD Skeleton (urological table incl.

  • In April 2012, Ishihara announced in Washington, DC, that he intended to purchase three of the five islets from their private Japanese owner.

  • Ravasi, and D.A. Hume, Interferon-gamma: an overview of signals, mechanisms and functions.

  • Attenuation factor Dij, analyzed in: 𝜋 𝑟𝑖𝑗𝑓𝑘 1𝐷𝑖𝑗𝑘(𝑟𝑖𝑗, 𝑓𝑘) = 𝑒𝑥𝑝 (− 𝑄(𝑓)𝑣 ) × 𝑟 𝛾𝑠 𝑖𝑗(5)with the first part of the product refers to anelastic attenuation function such as the one given by Futternman, (1962) and the second part is the common approach of geometrical spreading.

Related to Attenuation factor

  • Inflation Factor means a number determined for each tax year by dividing the consumer price index for June of the tax year by the consumer price index for June 2005.

  • Capacity Utilization Factor or “CUF” shall have the same meaning as provided in CERC (Terms and Conditions for Tariff determination from Renewable Energy Sources) Regulations, 2009 as amended from time to time; However, for avoidance of any doubt, it is clarified that the CUF shall be calculated on the Contracted Capacity; In any Contract Year, if ‘X’ MWh of energy has been metered out at the Delivery Point for ‘Y’ MW Project capacity, CUF= (X MWh/(Y MW*8766)) X100%; Declared CUF for this Project shall be % (to be revised as applicable).

  • Class Factor As to any date of determination and any Class of Certificates (other than the Interest Only Classes and the Residual Certificates), a fraction the numerator of which is (i) the aggregate of the denominations of all Certificates of such Class plus, in the case of each Accrual Class, all interest that has accrued on the Certificates of such Class prior to such date of determination and been added to the Class Balance thereof, less (ii) the aggregate amount of all Principal Distribution Amounts, if any, allocable thereto prior to such date of determination and the denominator of which is the original Class Balance of such Class. As to any date of determination and any Interest Only Class, a fraction, the numerator of which is the percentage of the balance specified for such purpose under “Reference Sheet–Notional Classes” in the Prospectus Supplement (or, if applicable, the sum of the applicable percentages of the balances so specified) and the denominator of which is the original Class Balance thereof. Code: The Internal Revenue Code of 1986, as amended, including any successor or amendatory provisions.

  • emission factor means the average emission rate of a greenhouse gas relative to the activity data of a source stream assuming complete oxidation for combustion and complete conversion for all other chemical reactions;

  • Load Factor means the percentage of aircraft seats actually occupied on a flight (RPMs divided by ASMs). “NMB” means the National Mediation Board.

  • Loss Factor means the scaling factor determined in accordance with clause 6 and applied by the reconciliation manager to volumes of electricity measured or estimated in respect of ICPs on the Network, in order to reflect the impact of the ICP on Losses within the Network;

  • Power Factor means the ratio of usage power measured in kW to total power measured in kVA;

  • Conversion Factor means 1.0, provided that in the event that the General Partner (i) declares or pays a dividend on its outstanding REIT Shares wholly or partly in REIT Shares or makes a distribution to all holders of its outstanding REIT Shares wholly or partly in REIT Shares, (ii) subdivides its outstanding REIT Shares, or (iii) combines its outstanding REIT Shares into a smaller number of REIT Shares, the Conversion Factor shall be adjusted by multiplying the Conversion Factor by a fraction, the numerator of which shall be the number of REIT Shares issued and outstanding on the record date for such dividend, distribution, subdivision or combination (assuming for such purposes that such dividend, distribution, subdivision or combination has occurred as of such time), and the denominator of which shall be the actual number of REIT Shares (determined without the above assumption) issued and outstanding on such date and, provided further, that in the event that an entity other than an Affiliate of the General Partner shall become General Partner pursuant to any merger, consolidation or combination of the General Partner with or into another entity (the “Successor Entity”), the Conversion Factor shall be adjusted by multiplying the Conversion Factor by the number of shares of the Successor Entity into which one REIT Share is converted pursuant to such merger, consolidation or combination, determined as of the date of such merger, consolidation or combination. Any adjustment to the Conversion Factor shall become effective immediately after the effective date of such event retroactive to the record date, if any, for such event; provided, however, that if the General Partner receives a Notice of Redemption after the record date, but prior to the effective date of such dividend, distribution, subdivision or combination, the Conversion Factor shall be determined as if the General Partner had received the Notice of Redemption immediately prior to the record date for such dividend, distribution, subdivision or combination.

  • Leverage Factor means the leverage factor in respect of a Series of ETP Securities as specified in the relevant Final Terms.

  • Participation Factor means a percentage to be determined in the reasonable discretion of the Issuer (billiges Ermessen) (§ 315 BGB) on the Strike Date on the basis of the volatility of the Underlying and the market conditions prevailing on such date and will be published in accordance with § 14 hereof. The indication for the Participation Factor based on the market conditions as of 15 November 2017 is 100% (in any case, it will not be below 80%).

  • Dilution Factors means, without duplication, with respect to any period, the aggregate amount of all deductions, credit memos, returns, adjustments, allowances, bad debt write-offs and other non-cash credits which are recorded to reduce accounts receivable in a manner consistent with current and historical accounting practices of the Borrower.

  • Fit factor means a quantitative estimate of the fit of a particular respirator to a specific individual, and typically estimates the ratio of the concentration of a substance in ambient air to its concentration inside the respirator when worn.

  • Adjustment Factor means, with respect to a share of the Fund (or one unit of any other security for which a Fund Closing Price must be determined), 1.0, subject to adjustment in the event of certain events affecting the shares of the Fund. See “—Anti-dilution Adjustments Relating to the Fund; Alternate Calculation —Anti-dilution Adjustments” below.

  • Capacity factor means the ratio of the average load on a machine or equipment for the period of time considered to the capacity rating of the machine or equipment.

  • Maximum contaminant level goal or “MCLG” means the maximum level of a contaminant in drinking water at which no known or anticipated adverse effect on the health of persons would occur, and which allows an adequate margin of safety. MCLGs are nonenforceable health goals.

  • Multiplier means the Multiplier specified in the Table.

  • Potential electrical output capacity means, with regard to a unit, 33 per- cent of the maximum design heat input of the unit.