power curven.

Brit.

/ˈpaʊə kəːv/, U.S.

/ˈpaʊ(ə)r ˌkərv/

Origin: Formed within English, by compounding. Etymons: power n.¹, curve n.

Etymology: < power n.¹ + curve n.

a. Engineering. A graph showing power as a function of some other variable; spec. a graph of the power output of a vehicle or aircraft against engine speed.

ΘΚΠ

the world > relative properties > number > graph or diagram > [noun] > graph > showing specific relationship

characteristic1881

characteristic curve1881

time curve1883

luminosity curve1886

hysteresis curve1890

hysteresis loop1892

time-distance1892

solidus1901

power curve1908

log log1910

Russell diagram1922

creep curve1931

power curve1932

Hertzsprung–Russell diagram1939

Petersen graph1947

utility curve1948

tournament graph1959

offset1987

1908 Philos. Trans. (Royal Soc.) A. 207 441 When the pressure observations are plotted to a suitable scale they coincide with the integrated power curve.

1934 Times 27 May 8/7 This Riley engine in acceleration is rapid and clean, it never fusses or vibrates, and the power curve must be a good one, for the engine capacity, throughout its range.

1968 J. Passini Weber Carburettors: Pt. 1 (1973) v. 49 At what point in the range the ram boost is most desirable depends a great deal on the shape of the power curve of the particular engine.

1979 Aviation Week & Space Technol. (Nexis) 9 Apr. 55 Low-camber airfoil wing designed to permit demonstrations of such characteristics as flight on the back side of the power curve without getting near an actual stall.

1994 Mountain Democrat (Calif.) 7 July (Advertising section) This edition came equipped with a four-speed automatic transmission, which shifted at all the right points to take advantage of the engine's power curve.

b. figurative. Chiefly Business. The current thinking or trend.

ΘΚΠ

the world > existence and causation > existence > state or condition > tendency > [noun] > prevailing tendency or spirit

mainstream1599

current1613

stream1614

spirita1616

tone1641

power curve1968

1968 European Stars & Stripes (Darmstadt, Germany) 4 Feb. 8/1 We were constantly behind the power curve on requests for airlift.

1973 Odessa (Texas) Amer. 25 Feb. 14/5 Man is capable, even in prosperity, of finding goals..which will keep him from falling into the historic trap of going over the wrong end of that power curve.

1985 N.Y. Times (Nexis) 19 May 12 They [sc. the steel industries] are so far behind in technology, and on the wrong side of the power curve in terms of their capital, their equipment needs.

1993 Star-Tribune (Minneapolis) (Nexis) 24 Oct. 1 d Earlier this year, as my colleagues and I reported on Northwest's sometimes frantic attempts to restructure its $2 billion mountain of loans, I realized that I, too, had fallen behind the financial power curve.

2005 Telephony (Nexis) 14 Feb. I think we're over the power curve with the technology now. I feel that if MPEG-4 came out today, we think we could deliver HD right away.

2. Statistics. A graphical representation of the power function of a statistical test.

ΘΚΠ

the world > relative properties > number > graph or diagram > [noun] > graph > showing specific relationship

characteristic1881

characteristic curve1881

time curve1883

luminosity curve1886

hysteresis curve1890

hysteresis loop1892

time-distance1892

solidus1901

power curve1908

log log1910

Russell diagram1922

creep curve1931

power curve1932

Hertzsprung–Russell diagram1939

Petersen graph1947

utility curve1948

tournament graph1959

offset1987

1932 Biometrika 24 273 While for the exponential curve the interval correlations are all zero, we see them approaching zero for the 11th power curve.

1965 Ann. Math. Statistics 36 662 For symmetrical non-normal populations, the power curve is symmetrical with respect to μ = μ0.

2002 Econometrica 70 1794 The power curve of the K statistic is nearly identical to the power curve of the LR statistic when we use its size-corrected critical value.

This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	power curve
释义	power curven. Brit. /ˈpaʊə kəːv/, U.S. /ˈpaʊ(ə)r ˌkərv/ Origin: Formed within English, by compounding. Etymons: power n.¹, curve n. Etymology: < power n.¹ + curve n. 1. a. Engineering. A graph showing power as a function of some other variable; spec. a graph of the power output of a vehicle or aircraft against engine speed. ΘΚΠ the world > relative properties > number > graph or diagram > [noun] > graph > showing specific relationship characteristic1881 characteristic curve1881 time curve1883 luminosity curve1886 hysteresis curve1890 hysteresis loop1892 time-distance1892 solidus1901 power curve1908 log log1910 Russell diagram1922 creep curve1931 power curve1932 Hertzsprung–Russell diagram1939 Petersen graph1947 utility curve1948 tournament graph1959 offset1987 1908 Philos. Trans. (Royal Soc.) A. 207 441 When the pressure observations are plotted to a suitable scale they coincide with the integrated power curve. 1934 Times 27 May 8/7 This Riley engine in acceleration is rapid and clean, it never fusses or vibrates, and the power curve must be a good one, for the engine capacity, throughout its range. 1968 J. Passini Weber Carburettors: Pt. 1 (1973) v. 49 At what point in the range the ram boost is most desirable depends a great deal on the shape of the power curve of the particular engine. 1979 Aviation Week & Space Technol. (Nexis) 9 Apr. 55 Low-camber airfoil wing designed to permit demonstrations of such characteristics as flight on the back side of the power curve without getting near an actual stall. 1994 Mountain Democrat (Calif.) 7 July (Advertising section) This edition came equipped with a four-speed automatic transmission, which shifted at all the right points to take advantage of the engine's power curve. b. figurative. Chiefly Business. The current thinking or trend. ΘΚΠ the world > existence and causation > existence > state or condition > tendency > [noun] > prevailing tendency or spirit mainstream1599 current1613 stream1614 spirita1616 tone1641 power curve1968 1968 European Stars & Stripes (Darmstadt, Germany) 4 Feb. 8/1 We were constantly behind the power curve on requests for airlift. 1973 Odessa (Texas) Amer. 25 Feb. 14/5 Man is capable, even in prosperity, of finding goals..which will keep him from falling into the historic trap of going over the wrong end of that power curve. 1985 N.Y. Times (Nexis) 19 May 12 They [sc. the steel industries] are so far behind in technology, and on the wrong side of the power curve in terms of their capital, their equipment needs. 1993 Star-Tribune (Minneapolis) (Nexis) 24 Oct. 1 d Earlier this year, as my colleagues and I reported on Northwest's sometimes frantic attempts to restructure its $2 billion mountain of loans, I realized that I, too, had fallen behind the financial power curve. 2005 Telephony (Nexis) 14 Feb. I think we're over the power curve with the technology now. I feel that if MPEG-4 came out today, we think we could deliver HD right away. 2. Statistics. A graphical representation of the power function of a statistical test. ΘΚΠ the world > relative properties > number > graph or diagram > [noun] > graph > showing specific relationship characteristic1881 characteristic curve1881 time curve1883 luminosity curve1886 hysteresis curve1890 hysteresis loop1892 time-distance1892 solidus1901 power curve1908 log log1910 Russell diagram1922 creep curve1931 power curve1932 Hertzsprung–Russell diagram1939 Petersen graph1947 utility curve1948 tournament graph1959 offset1987 1932 Biometrika 24 273 While for the exponential curve the interval correlations are all zero, we see them approaching zero for the 11th power curve. 1965 Ann. Math. Statistics 36 662 For symmetrical non-normal populations, the power curve is symmetrical with respect to μ = μ0. 2002 Econometrica 70 1794 The power curve of the K statistic is nearly identical to the power curve of the LR statistic when we use its size-corrected critical value. This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022). < n.1908
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