ダイン　　

WordNet

a unit of force equal to the force that imparts an acceleration of 1 cm/sec/sec to a mass of 1 gram
a radio receiver that combines a locally generated frequency with the carrier frequency to produce a supersonic signal that is demodulated and amplified (同)superheterodyne receiver, superhet

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ダイン(力の絶対単位;1グラムの物体に1秒につき1cm/秒の加速度を生じる力)
鎮痛剤

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/29 22:28:19」(JST)

wiki ja

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この項目では、力の単位のダインについて記述しています。その他の用法については「ダイン (曖昧さ回避)」をご覧ください。

ダイン（dyne, 記号:dyn）は、CGS単位系における力の単位である。

ダインという名称は、ギリシア語で「力」を意味する δύναμις (dynamis)に由来する。

1ダインは、質量1グラム (g) の物体に働くとき、その方向に1センチメートル毎秒毎秒(cm/s²)の加速度を与える力と定義されている。また、1 dyn の力のもとで 1 cm 動かすエネルギーがエルグ (erg) である。

ダインと同様の定義でグラムをキログラム (kg)、センチメートルをメートル (m) に置き換えると、国際単位系の力の単位ニュートンの定義となる。1 N = 1 kg·m/s² = (1000 g)(100 cm)/s² = 10⁵ g·cm/s² = 10⁵ dyn で、同様に、1dyn = 10⁻⁵ N である。

ダインは非SI単位であり、同じ物理量のニュートンの使用が推奨されている。日本においては、SIへの移行を目的として1993年11月1日に施行された新計量法において力の単位にはニュートンを使用することが定められており、1995年10月1日以降は商取引などでのダインの使用が禁止されている。

1メガダイン (Mdyn = 10⁶ dyn = 10 N) は1重量キログラム (kgf) に近い (1 kgf = 0.980665 Mdyn) ことから、かつてはよく用いられていた。

力の単位
	ニュートン（SI単位）	ダイン	重量キログラム	重量ポンド	パウンダル
1 N	= 1 kg·m/s²	= 10⁵ dyn	~0.10197 kgf	~0.22481 lb_f	~7.2330 pdl
1 dyn	= 10⁻⁵ N	= 1 g·cm/s²	~1.0197×10⁻⁶ kgf	~2.2481×10⁻⁶ lb_f	~7.2330×10⁻⁵ pdl
1 kgf	= 9.80665 N	= 980665 dyn	= g_n·(1 kg)	~2.2046 lb_f	~70.932 pdl
1 lb_f	= 4.4482216152605 N	~444822 dyn	~0.45359 kgf	= g_n·(1 lb)	~32.174 pdl
1 pdl	= 0.138254954376 N	~13825 dyn	~0.014098 kgf	~0.031081 lb_f	= 1 lb·ft/s²
重量ポンドの値は、公式には重量キログラムによって定義されている標準重力加速度 g_n を用いて計算している。

wiki en

[Wiki en表示]

For other uses, see Dyne (disambiguation).

In physics, the dyne (symbol "dyn", from Greek δύναμις (dynamis) meaning power, force) is a unit of force specified in the centimetre-gram-second (CGS) system of units, a predecessor of the modern SI. One dyne is equal to 10 µN (micronewtons). Equivalently, the dyne is defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared":

1 dyn = 1 g·cm/s² = 10⁻⁵ kg·m/s² = 10⁻⁵ N

1 Newton = 1 kg•m/s² = 10⁵ g•cm/s² = 10 ⁵ dyne

The dyne per centimetre is the unit traditionally used to measure surface tension. For example, the surface tension of distilled water is 72 dyn/cm at 25 °C (77 °F);^[1] in SI units this is 72 x 10⁻³ N/m or 72 mN/m.

**Units of force**
v t e	newton (SI unit)	dyne	kilogram-force, kilopond	pound-force	poundal
1 N	≡ 1 kg·m/s²	= 10⁵ dyn	≈ 0.10197 kp	≈ 0.22481 lb_F	≈ 7.2330 pdl
1 dyn	= 10⁻⁵ N	≡ 1 g·cm/s²	≈ 1.0197×10⁻⁶ kp	≈ 2.2481×10⁻⁶ lb_F	≈ 7.2330×10⁻⁵ pdl
1 kp	= 9.80665 N	= 980665 dyn	≡ g_n·(1 kg)	≈ 2.2046 lb_F	≈ 70.932 pdl
1 lb_F	≈ 4.448222 N	≈ 444822 dyn	≈ 0.45359 kp	≡ g_n·(1 lb)	≈ 32.174 pdl
1 pdl	≈ 0.138255 N	≈ 13825 dyn	≈ 0.014098 kp	≈ 0.031081 lb_F	≡ 1 lb·ft/s²
The value of g_n as used in the official definition of the kilogram-force is used here for all gravitational units.

History

The names dyne and erg were first proposed as units of force and energy in 1861 by Everett.^[2] The natural units listed in the same text (see Farad in this reference), are those of the metre-gram-second emu.^{[clarification needed]}

The names were reused in 1873 by a Committee of the British Association^[3] (of which Everett was reporter) that proposed using the centimetre-gram-second system for electrical and dynamical systems.

References

^ [1]^{[dead link]}
^ Rossiter, William (1879). Dictionary of Scientific Terms. London and Glasgow: William Collins, Sons, and Coy. p. 109.
^ Thomson, Sir W; Professor GC, Foster; Maxwell, Professor JC; Stoney, Mr GJ; Professor Flemming, Jenkin; Siemens, Dr; Bramwell, Mr FJ (September 1873). "First Report of the Committee for the Selection and Nomenclature of Dynamical and Electrical Units". In Everett, Professor. Forty-third Meeting of the British Association for the Advancement of Science. Bradford: Johna Murray. p. 223. http://www.biodiversitylibrary.org/item/94452#page/7/mode/1up. Retrieved 8 April 2012.

Wikisource has the text of The New Student's Reference Work article Dyne.

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Shear stress and circumferential stretch by pulsatile flow direct vascular endothelial lineage commitment of mesenchymal stem cells in engineered blood vessels.

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Japanese Journal

Targeted Therapy Is Required for Management of Pulmonary Arterial Hypertension After Defect Closure in Adult Patients With Atrial Septal Defect and Associated Pulmonary Arterial Hypertension

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International Heart Journal advpub(0), 2015
… The hemodynamic data before and after ASD closure without targeted therapy showed further elevation of pulmonary vascular resistance shortly after ASD closure (678 dyne·s/cm5 to 926 dyne·s/cm5) in 1 case, as well as after a long time since ASD closure (491.0 ± 53.7 dyne·s/cm5 to 1045.0 ± 217.8 dyne·s/cm5) in 2 cases. …
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Targeted Therapy Is Required for Management of Pulmonary Arterial Hypertension After Defect Closure in Adult Patients With Atrial Septal Defect and Associated Pulmonary Arterial Hypertension

Fujino Takeo,Yao Atsushi,Hatano Masaru,Inaba Toshiro,Muraoka Hironori,Minatsuki Shun,Imamura Teruhiko,Maki Hisataka,Kinugawa Koichiro,Ono Minoru,Nagai Ryozo,Komuro Issei
International Heart Journal 56(1), 86-93, 2015
… The hemodynamic data before and after ASD closure without targeted therapy showed further elevation of pulmonary vascular resistance shortly after ASD closure (678 dyne·s/cm5 to 926 dyne·s/cm5) in 1 case, as well as after a long time since ASD closure (491.0 ± 53.7 dyne·s/cm5 to 1045.0 ± 217.8 dyne·s/cm5) in 2 cases. …
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SK-DYNE Adhesive for Optical Film

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★リンクテーブル★

リンク元	「ダイン」
拡張検索	「Visudyne」

「ダイン」

ダイン; dyne
記号	dyn
度量衡	メートル法
系	CGS単位系
種類	組立単位
量	力
SI	10−5 N
組立	g·cm/s2 = g·Gal
定義	1 g の質量に 1 cm/s2 の加速度を生じさせる力
語源	ギリシャ語 δύναμις dynamis（力）
	テンプレートを表示

　　[★]

英: dyne
関: 力

概念

CGS単位系における力の単位

定義

力が質量1グラム(g)の物体に働くとき、力の向きと同じ方向に1センチメートル毎秒毎秒(cm/s2)の加速度を与えるような力の大きさ

単位の変換

1 N = 1 kg・m/s² = (1000 g)(100 cm)/s² = 105 g・cm/s² = 10⁵ dyn
1 dyn = 10^?5 N

「Visudyne」

　　[★]

ビスダイン

関: verteporfin

[1] [1]^{[dead link]}

[Rossiter-2] Rossiter, William (1879). Dictionary of Scientific Terms. London and Glasgow: William Collins, Sons, and Coy. p. 109.

[3] Thomson, Sir W; Professor GC, Foster; Maxwell, Professor JC; Stoney, Mr GJ; Professor Flemming, Jenkin; Siemens, Dr; Bramwell, Mr FJ (September 1873). "First Report of the Committee for the Selection and Nomenclature of Dynamical and Electrical Units". In Everett, Professor. Forty-third Meeting of the British Association for the Advancement of Science. Bradford: Johna Murray. p. 223. http://www.biodiversitylibrary.org/item/94452#page/7/mode/1up. Retrieved 8 April 2012.

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案内

dyne