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  2. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    as a ratio of one part rise to so many parts run. For example, a slope that has a rise of 5 feet for every 1000 feet of run would have a slope ratio of 1 in 200. (The word "in" is normally used rather than the mathematical ratio notation of "1:200".) This is generally the method used to describe railway grades in Australia and the UK.

  3. Roof pitch - Wikipedia

    en.wikipedia.org/wiki/Roof_pitch

    Historically, roof pitch was designated in two other ways: A ratio of the ridge height to the width of the building (span) [6] and as a ratio of the rafter length to the width of the building. [7] Commonly used roof pitches were given names such as: Greek: the ridge height is 1 ⁄ 9 to 1 ⁄ 7 the span (an angle of 12.5° to 16°);

  4. Slope - Wikipedia

    en.wikipedia.org/wiki/Slope

    Slope: = = ⁡ In mathematics, the slope or gradient of a line is a number that describes the direction of the line on a plane. [1] Often denoted by the letter m, slope is calculated as the ratio of the vertical change to the horizontal change ("rise over run") between two distinct points on the line, giving the same number for any choice of points.

  5. Stream gradient - Wikipedia

    en.wikipedia.org/wiki/Stream_gradient

    Stream gradient (or stream slope) is the grade (or slope) of a stream. It is measured by the ratio of drop in elevation and horizontal distance. [ 1 ] It is a dimensionless quantity , usually expressed in units of meters per kilometer (m/km) or feet per mile (ft/mi); it may also be expressed in percent (%).

  6. Slope stability analysis - Wikipedia

    en.wikipedia.org/wiki/Slope_stability_analysis

    Slope stability analysis is a static or dynamic, ... The factor of safety is the ratio of the maximum moment from Terzaghi's theory to the estimated moment,

  7. Surface roughness - Wikipedia

    en.wikipedia.org/wiki/Surface_roughness

    1.1.1.3 Bearing ratio curve parameters. 1.1.1.4 Fractal theory. ... Slope parameters describe characteristics of the slope of the roughness profile. Spacing and ...

  8. Landlords catering to NYC hipsters get break at expense of ...

    www.aol.com/landlords-catering-nyc-hipsters...

    Homeowners in wealthy white neighborhoods, such as Park Slope in Brooklyn, are not paying their fair share of property taxes because of low assessments, an advocacy group says.

  9. Regression dilution - Wikipedia

    en.wikipedia.org/wiki/Regression_dilution

    Under certain assumptions (typically, normal distribution assumptions) there is a known ratio between the true slope, and the expected estimated slope. Frost and Thompson (2000) review several methods for estimating this ratio and hence correcting the estimated slope. [4]