In physics, two experimental techniques are often called complementary if they investigate the same subject in two different ways such that two different (ideally non-overlapping) properties or aspects can be investigated.[1][2] For example, X-ray scattering and neutron scattering experiments are often said to be complementary because the former reveals information about the electron density of the atoms in the target but gives no information about the nuclei (because they are too small to affect the X-rays significantly), while the latter allows one to investigate the nuclei of the atoms but cannot tell one anything about their electron hulls (because the neutrons, being neutral, do not interact with the charged electrons).
Scattering experiments are sometimes also called complementary when they investigate the same physical property of a system from two complementary view points in the sense of Bohr. For example, time-resolved and energy-resolved experiments are said to be complementary.[3] The former uses a pulse which is well-defined in time. The latter uses a monochromatic pulse well defined in energy (its frequency is well known).
^Led, Jens J; Gesmar, Henrik (1982-10-01). "The applicability of the magnetization-transfer NMR technique to determine chemical exchange rates in extreme cases. The importance of complementary experiments". Journal of Magnetic Resonance. 49 (3): 444–463. Bibcode:1982JMagR..49..444L. doi:10.1016/0022-2364(82)90257-8. ISSN 0022-2364.
^Fischer, R.; Dinklage, A.; Knuth, Kevin H.; Caticha, Ariel; Center, Julian L.; Giffin, Adom; Rodríguez, Carlos C. (2007). "The concept of Integrated Data Analysis of complementary experiments". AIP Conference Proceedings. 954. AIP: 195–202. Bibcode:2007AIPC..954..195F. doi:10.1063/1.2821262. hdl:11858/00-001M-0000-0027-09CA-5.
^Mehta, Halak N.; Benyathiar, Patnarin; Mishra, Dharmendra K.; Varney, Michael (2021-07-01). "Complementary experiments for parameter estimation in heat transfer model". Food and Bioproducts Processing. 128: 240–246. doi:10.1016/j.fbp.2021.06.004. ISSN 0960-3085. S2CID 237761703.
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For example, X-ray scattering and neutron scattering experiments are often said to be complementary because the former reveals information about the electron...
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(set theory) Complementary event in probability Logical complement Bitwise complement Complements in boolean algebra Complementaryexperiments, in physics...
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¬ {\displaystyle \neg } A or A. Given an event, the event and its complementary event define a Bernoulli trial: did the event occur or not? For example...
A complementary currency is a currency or medium of exchange that is not necessarily a national currency, but that is thought of as supplementing or complementing...
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trial, corresponding to whether the event occurred or not (event or complementary event). Examples of Bernoulli trials include: Flipping a coin. In this...
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before the conclusion of an experiment is a source of bias. Some degree of premature unblinding is common in blinded experiments. When a blind is imperfect...
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laser, with an output of over 14 kilowatts. Since CEBAF has three complementaryexperiments running simultaneously, it was decided that the three data acquisition...
ATLAS and the CMS experiments in 2012, all of the particles predicted by the Standard Model had been observed by previous experiments. In this field, in...
of groundbreaking neutrino experiments have taken place at the observatory over the past two decades. All of the experiments have been very large and have...
rotate to scan the whole field of view. Together with experiments like the Saskatoon experiment, MAT/TOCO, MAXIMA, and others, the BOOMERanG data from...
complicates the interpretation." The United States National Center for Complementary and Integrative Health advice is that "St. John's wort may help some...
the random variable is above a particular level. This is called the complementary cumulative distribution function (ccdf) or simply the tail distribution...
that the original color will evoke its complementary color (green, in the case of red input). When complementary colors are combined or mixed, they "cancel...
radiation, and therefore is complementary to the ISOLDE Solenoidal Spectrometer (ISS) and Miniball experiments. The SEC experiment uses radioactive ion beams...
while for the complementary HNCA experiment peaks appear at {HN(i), N(i), Cα(i-1)} and {HN(i), N(i), Cα (i)}. Together, these two experiments reveal the...
Calpha(i-1)}, while for the complementary HNCOCA experiment peaks appear only at {HN(i), N(i), Calpha(i-1)}. Together, these two experiments reveal the alpha carbon...
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