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  2. In situ chemical reduction - Wikipedia

    en.wikipedia.org/wiki/In_situ_chemical_reduction

    The in situ in ISCR is just Latin for "in place", signifying that ISCR is a chemical reduction reaction that occurs at the site of the contamination. Like ISCO, it is able to decontaminate many compounds, and, in theory, ISCR could be more effective in ground water remediation than ISCO.

  3. Debt service coverage ratio - Wikipedia

    en.wikipedia.org/wiki/Debt_service_coverage_ratio

    For example, if post-tax outlays consist of CPLTD of $100M and noncash expenses are $50M, then the borrower can apply $50M of cash inflow from operations directly against $50M of post-tax outlays without paying taxes on that $50M inflow, but the company must set aside $77M (assuming a 35% income tax rate) to meet the remaining $50M of post-tax ...

  4. List of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/List_of_spreadsheet_software

    Both free and paid versions are available. It can handle Microsoft Excel .xls and .xlsx files, and also produce other file formats such as .et, .txt, .csv, .pdf, and .dbf. It supports multiple tabs, VBA macro and PDF converting. [10] Lotus SmartSuite Lotus 123 – for MS Windows. In its MS-DOS (character cell) version, widely considered to be ...

  5. International Standard Recording Code - Wikipedia

    en.wikipedia.org/wiki/International_Standard...

    The International Standard Recording Code (ISRC) is an international standard code for uniquely identifying sound recordings and music video recordings.The code was developed by the recording industry in conjunction with the ISO technical committee 46, subcommittee 9 (TC 46/SC 9), which codified the standard as ISO 3901 in 1986, and updated it in 2001.

  6. List of price index formulas - Wikipedia

    en.wikipedia.org/wiki/List_of_price_index_formulas

    [The formula does not make clear over what the summation is done. P C = 1 n ⋅ ∑ p t p 0 {\displaystyle P_{C}={\frac {1}{n}}\cdot \sum {\frac {p_{t}}{p_{0}}}} On 17 August 2012 the BBC Radio 4 program More or Less [ 3 ] noted that the Carli index, used in part in the British retail price index , has a built-in bias towards recording ...

  7. Integration by reduction formulae - Wikipedia

    en.wikipedia.org/wiki/Integration_by_reduction...

    The main idea is to express an integral involving an integer parameter (e.g. power) of a function, represented by I n, in terms of an integral that involves a lower value of the parameter (lower power) of that function, for example I n-1 or I n-2. This makes the reduction formula a type of recurrence relation. In other words, the reduction ...

  8. Mortgage calculator - Wikipedia

    en.wikipedia.org/wiki/Mortgage_calculator

    For example, if the yearly percentage rate was 6% (i.e. 0.06), then r would be / or 0.5% (i.e. 0.005). N - the number of monthly payments, called the loan's term, and; P - the amount borrowed, known as the loan's principal. In the standardized calculations used in the United States, c is given by the formula: [4]

  9. IscR stability element - Wikipedia

    en.wikipedia.org/wiki/IscR_stability_element

    The IscR stability element is a conserved secondary structure found in the intergenic regions of iscRSUA polycistronic mRNA. This secondary structure prevents the degradation of the iscR mRNA . The iscRSUA operon encodes for the proteins required in iron–sulfur cluster biosynthesis where the expression of this operon is regulated by RyhB and ...