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.

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;

  • 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. Here, the CUF is expressed in AC terms.

  • 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 7 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;

  • Weighting factor wT for an organ or tissue (T) means the proportion of the risk of stochastic effects resulting from irradiation of that organ or tissue to the total risk of stochastic effects when the whole body is irradiated uniformly. For calculating the effective dose equivalent, the values of wT are:

  • Required Accumulation Factor Number shall be equal to a fraction, rounded upwards to the nearest whole number, the numerator of which is one and the denominator of which is equal to the lowest monthly principal payment rate on the Accounts, expressed as a decimal, for the three months preceding the date of such calculation.

  • 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.

  • 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 Index 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 9 March 2018 is 200% (in any case, it will not be below 170%).

  • 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.

  • Expansion Factor has the meaning ascribed thereto in Section 2.3(a);

  • Exchange Factor means 1.0; provided, however, that if the General Partner: (a) declares or pays a dividend on its outstanding Common Stock in Common Stock or makes a distribution to all holders of its outstanding Common Stock in Common Stock; (b) subdivides its outstanding Common Stock; or (c) combines its outstanding Common Stock into a smaller number of shares of Common Stock, the Exchange Factor shall be adjusted by multiplying the Exchange Factor by a fraction, the numerator of which shall be the number of shares of Common Stock issued and outstanding on the record date for such dividend, contribution, subdivision or combination (assuming for such purpose that such dividend, distribution, subdivision or combination has occurred as of such time), and the denominator of which shall be the actual number of shares of Common Stock (determined without the above assumption) issued and outstanding on the record date for such dividend, distribution, subdivision or combination. Any adjustment to the Exchange Factor shall become effective immediately after the effective date of such event retroactive to the record date, if any, for such event.

  • Assigned protection factor or "APF" means the expected workplace level of respiratory protection that would be provided by a properly functioning respirator or a class of respirators to properly fitted and trained users. Operationally, the inhaled concentration can be estimated by dividing the ambient airborne concentration by the APF.

  • Applicable Multiplier means, with respect to any Rate Period for any Series of RVMTP Shares, the percentage set forth opposite the applicable credit rating most recently assigned to such Series by the Rating Agency in the table below on the Rate Determination Date for such Rate Period: Long-Term Ratings* Fitch Applicable Multiplier AAA to AA- 100% A+ to A- 000% BBB+ to BBB- 140% *And/or the equivalent ratings of any other Rating Agency then rating the RVMTP Shares utilizing the highest of the ratings of the Rating Agencies then rating the RVMTP Shares.

  • 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 1.0.

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