WordNet

a unit used in estimating fuel requirements for heating a building
the time after sunrise and before sunset while it is light outside; "the dawn turned night into day"; "it is easier to make the repairs in the daytime" (同)daytime, daylight
time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day" (同)twenty-four hours, twenty-four hour period, 24-hour interval, solar day, mean solar day
a day assigned to a particular purpose or observance; "Mothers Day"
a period of opportunity; "he deserves his day in court"; "every dog has his day"
an era of existence or influence; "in the day of the dinosaurs"; "in the days of the Roman Empire"; "in the days of sailing ships"; "he was a successful pianist in his day"
some point or period in time; "it should arrive any day now"; "after that day she never trusted him again"; "those were the days"; "these days it is not unusual"
the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis; "how long is a day on Jupiter?"
the recurring hours when you are not sleeping (especially those when you are working); "my day began early this morning"; "it was a busy day on the stock exchange"; "she called it a day and went to bed"
a measure for arcs and angles; "there are 360 degrees in a circle" (同)arcdegree
a specific identifiable position in a continuum or series or especially in a process; "a remarkable degree of frankness"; "at what stage are the social sciences?" (同)level, stage, point
a unit of temperature on a specified scale; "the game was played in spite of the 40-degree temperature"
a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree" (同)grade, level
the seriousness of something (e.g., a burn or crime); "murder in the second degree"; "a second degree burn"
the highest power of a term or variable
the time during which someones life continues; "the monarchs last days"; "in his final years" (同)years
United States writer best known for his autobiographical works (1874-1935) (同)Clarence Day, Clarence Shepard Day Jr.

PrepTutorEJDIC

〈U〉〈C〉『昼間』,『日中』 / 〈C〉『1日』,1昼夜,日 / 〈C〉(労働や勉強の単位の)1日 / 〈C〉(物事が予定された)日・期日;《しばしばD-》祝日 / 〈C〉《しばしば複数形で》(過去・現在・未来いずれかの)『時代』;現代 / 〈C〉《しばしば複数形で》『一生』,生涯;《所有格の旧詞・代名詞とともに槻数形で》(…の)『全先宗代』,活動期 / 〈U〉《the ~》戦い,勝負
〈C〉U〉『程度』,度合 / 〈U〉《古》(社会的)階級,地位,身分 / 〈C〉『学位』,称号 / 〈C〉(寒暖計の)『度』 / 〈C〉(角度の)度 / 〈C〉(数学で)次[数] / 〈C〉(形容詞・副詞の比較の)級 / 〈C〉(犯罪の)等級 / 〈C〉(音階の)度,階 / ちょっと,いくぶん
たいてい昼間は
(おもに人称代名詞・固有名詞(人名),thereの後で)had, wouldの短縮形 / (疑問文でwhere,what,whenの後で)didの短縮形;Where'd he go?=Where did he go?

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/05/09 23:32:32」(JST)

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[Wiki en表示]

A map of France which shows the different zones

A degree day is a measure of heating or cooling. Total degree days from an appropriate starting date are used to plan the planting of crops and management of pests and pest control timing. Weekly or monthly degree-day figures may also be used within an energy monitoring and targeting scheme to monitor the heating and cooling costs of climate controlled buildings, while annual figures can be used for estimating future costs.

A degree day is computed as the integral of a function of time that generally varies with temperature. The function is truncated to upper and lower limits that vary by organism, or to limits that are appropriate for climate control. The function can be estimated or measured by one of the following methods, in each case by reference to a chosen base temperature:

Frequent measurements and continuously integrating the temperature deficit or excess;
Treating each day's temperature profile as a sine wave with amplitude equal to the day's temperature variation, measured from max and min, and totalling the daily results;
As above, but calculating the daily difference between mean temperature and base temperature;
As previous, but with modified formulae on days when the max and min straddle the base temperature.

A zero degree-day in energy monitoring and targeting is when either heating or cooling consumption is at a minimum, which is useful with power utility companies in predicting seasonal low points in energy demand.

Heating degree days are typical indicators of household energy consumption for space heating. The air temperature in a building is on average 2 °C to 3 °C higher than that of the air outside. A temperature of 18 °C indoors corresponds to an outside temperature of about 15.5 °C. If the air temperature outside is 1 °C below 15.5 °C, then heating is required to maintain a temperature of about 18 °C. If the outside temperature is 1 °C below the average temperature it is accounted as 1 degree-day. The sum of the degree days over periods such as a month or an entire heating season is used in calculating the amount of heating required for a building. Degree Days are also used to estimate air conditioning usage during the warm season.

References

External links

Free heating and cooling degree days for locations worldwide
Free degree day downloads for 77 UK weather stations and various building base temperatures
How to use degree-day data for energy management
Information relating to plant and pest growth
Inaccuracies in degree-day-based energy calculations, and how to reduce them
met Ireland - Degree Days

UpToDate Contents

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English Journal

Early use of oleanolic acid provides protection against 6-hydroxydopamine induced dopamine neurodegeneration.

Mabandla MV1, Nyoka M2, Daniels WM2.
Brain research.Brain Res.2015 Oct 5;1622:64-71. doi: 10.1016/j.brainres.2015.06.017. Epub 2015 Jun 22.
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A New Option for the Reconstruction of Orbital Floor Defects: The Olecranon Bone Graft.

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Randomized clinical trial of a handheld cooling device (Menopod(®)) for relief of menopausal vasomotor symptoms.

Reid RL1,2, Magee B2, Trueman J1,2, Hahn PM1,2, Pudwell J2.
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PMID 26029989

Japanese Journal

ヒメハラナガツチバチ Campsomeris annulata の簡易飼育法と基礎生態

谷聡一郎,上野高敏
Science bulletin of the Faculty of Agriculture, Kyushu University 69(2), 55-62, 2014-08-29
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摂食障害患者の症状について : 家族が困っている問題に関するアンケート調査から

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心身医学 54(4), 364-370, 2014-04-01
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福井県の行事食の現状と地域性

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… The results of the investigation showed that people in Fukui Prefecture had a high degree of familiarity with annual events at 84% or higher for almost all of them, while having a considerable degree of experience with such events, although not higher than their degree of familiarity with the events, at 60% or higher for almost all of them. …
NAID 110009795307