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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/12/06 00:28:42」(JST)
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For the organelle called conoid used by intracellular parasites, see myzocytosis.
The hyperbolic paraboloid
z=
xy is a conoid with x-axis as its axis.
The hyperbolic paraboloid
z=
xy is a conoid with y-axis as its axis.
In geometry, a conoid is a Catalan surface all of whose rulings intersect a fixed line, called the axis of the conoid. If all its rulings are perpendicular to its axis, then the conoid is called a right conoid.[1]
For example, the hyperbolic paraboloid z = xy is a conoid (in fact, a right conoid) with x-axis and y-axis as its two axes.
A conoid can be represented by parametric equations
where {ℓ, m, n} is a vector parallel to the axis of the conoid and ƒ(u) is some function.
If ℓ = m = 0 and n = 1, then the conoid is a right conoid.
See also[edit]
- Ruled surface
- Right conoid
- Catalan surface
References[edit]
- A. Gray, E. Abbena, S. Salamon,Modern differential geometry of curves and surfaces with Mathematica, 3rd ed. Boca Raton, FL:CRC Press, 2006. [2] (ISBN 9781584884484)
- Vladimir Y. Rovenskii, Geometry of curves and surfaces with MAPLE [3] (ISBN 978-0-8176-4074-3)
External links[edit]
- Hazewinkel, Michiel, ed. (2001), "Conoid", Encyclopedia of Mathematics, Springer, ISBN 978-1-55608-010-4
UpToDate Contents
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English Journal
- Stature estimation in a contemporary Japanese population based on clavicular measurements using multidetector computed tomography.
- Torimitsu S1, Makino Y2, Saitoh H3, Sakuma A4, Ishii N5, Yajima D6, Inokuchi G7, Motomura A8, Chiba F9, Yamaguchi R10, Hashimoto M11, Hoshioka Y12, Iwase H13.
- Forensic science international.Forensic Sci Int.2017 Jun;275:316.e1-316.e6. doi: 10.1016/j.forsciint.2017.02.037. Epub 2017 Mar 8.
- PMID 28343812
- Calmodulin-like proteins localized to the conoid regulate motility and cell invasion by Toxoplasma gondii.
- Long S1, Brown KM1, Drewry LL1, Anthony B1, Phan IQH2, Sibley LD1.
- PLoS pathogens.PLoS Pathog.2017 May 5;13(5):e1006379. doi: 10.1371/journal.ppat.1006379. eCollection 2017 May.
- PMID 28475612
- Arthroscopic-Assisted Coracoclavicular Ligament Reconstruction for Acute Acromioclavicular Dislocation Using 2 Clavicular and 1 Coracoid Cortical Fixation Buttons With Suture Tapes.
- Shin SJ1, Jeon YS2, Kim RG2.
- Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.Arthroscopy.2017 Apr 17. pii: S0749-8063(17)30128-7. doi: 10.1016/j.arthro.2017.02.003. [Epub ahead of print]
- PMID 28427871
Japanese Journal
- 肩鎖関節脱臼に対する鏡視下烏口鎖骨靱帯再建術の実際
- Coracoclavicular ligament attachment regions of the Chinese population : a quantitative anatomic study
★リンクテーブル★
[★]
円錐靱帯、円錐靭帯
- 関
- ligamentum conoideum
[★]
- 関
- conoid ligament