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.

  • Limited Indexation Factor means, in respect of a Limited Indexation Month or Limited Indexation Date, as the case may be, the ratio of the Index Figure applicable to that month or date, as the case may be, divided by the Index Figure applicable to the month or date, as the case may be, twelve months prior thereto, provided that (a) if such ratio is greater than the Maximum Indexation Factor specified in the relevant Final Terms, it shall be deemed to be equal to such Maximum Indexation Factor and (b) if such ratio is less than the Minimum Indexation Factor specified in the relevant Final Terms, it shall be deemed to be equal to such Minimum Indexation Factor;

  • Load Factor means the ratio of average demand for a designated time period (usually one month) to the maximum demand occurring in that period;

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

  • Stress Factor means 2.25.

  • 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.

  • 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%).

  • 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.

  • Multiplier means the Multiplier specified in the Table.