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Topic: Ogive


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In the News (Thu 26 Nov 09)

  
  OGIVE (a French term, ... - Online Information article about OGIVE (a French term, ...
OGIVE (a French term, of which the or...
OGIVE (a French term, of which the origin is obscure; auge, trough, from Lat.
End of Article: OGIVE (a French term, of which the origin is obscure; auge, trough, from Lat.
encyclopedia.jrank.org /NUM_ORC/OGIVE_a_French_term_of_which_th.html   (232 words)

  
  Ogive - Wikipedia, the free encyclopedia
The traditional or secant ogive is a surface of revolution of the same curve that forms a Gothic arch; that is, a circular arc, of greater radius than the cylindrical section ("shank"), is drawn from the edge of the shank until it intercepts the axis.
An elliptical ogive is normally described in terms of the ratio of the length of the ogive to the diameter of the shank.
In Gothic architecture, ogives are the intersecting transverse ribs of arches that establish the surface of a Gothic vault.
en.wikipedia.org /wiki/Ogive   (571 words)

  
 Nose cone design - Wikipedia, the free encyclopedia
The profile of this shape is formed by a segment of a circle such that the rocket body is tangent to the curve of the nose cone at its base; and the base is on the radius of the circle.
The Ogive Radius ρ is not determined by R and L (as it is for a tangent ogive), but rather is one of the factors to be chosen to define the nose shape.
The profile of this shape is one-half of an ellipse, with the major axis being the centerline and the minor axis being the base of the nose cone.
en.wikipedia.org /wiki/Nose_cone_design   (1242 words)

  
 Ogive
The ogive is then simply an XY plot of the cumulative frequencies (or cumulative percentage frequencies) against the class
A common mistake is to plot against the class midpoints, due to confusion with the simple frequency polygon.
It is difficult, although not impossible, to judge the shape of the distribution from an ogive.
home.ched.coventry.ac.uk /Volume/vol0/ogive.htm   (190 words)

  
 Informat.io on Ogive
The term ogive is also typically used to identify the area of transition between the cylindrical body of a bullet and the streamlined nose.
If this arc is drawn so that it meets the shank at zero angle (that is, the distance of the centre of the arc from the axis, plus the radius of the shank, equals the radius of the arc), then it is called a high velocity (supersonic) rifle bullets.
In rocketry "ogive" has become a synonym of nose cone.
www.informat.io /?title=Ogive   (581 words)

  
 Lilja Precision Rifle Barrels - Articles: Calculating Bullet Weights
The point of intersection is not tangent, the ogive radius being a secant of the arc circle of the ogive.
It is not determined mathematically, as it is with a tangent ogive.
Streamlined bullets often have a secant ogive radius of 10 to 15 calibers and a length of approximately that of a tangent ogive of half the radius in calibers.
www.riflebarrels.com /articles/bullets_ballastics/bullet_weights.htm   (2182 words)

  
 Arabic words in English: live usage examples   (Site not responding. Last check: 2007-10-28)
A secant ogive of sharpness E = 120/100= 1.2 The sharpness of this ogive is expressed by the ratio of its radius to the diameter of the cylinder; a value of one half being a hemispherical dome, and larger values being progressively more pointed.
Architecture In Gothic architecture, ogives are the intersecting transverse ribs of arches that establish the surface of a Gothic vault.
Geology In glaciology, ogives are bands of light and dark ice on the surface of a glacier.
www.1001inventions.com /words/index.cfm?fuseaction=main.viewWord&vcWord=ogive   (612 words)

  
 Corbin Swaged Bullet Designs
Spitzers or "tangential ogive" bullets are a special case of secant ogives where the angle joining the nose and the shank is zero.
Ogives of.5, 1, 2, 4, 6, 8, 10, and 12 can also be made, and for longer ogive, we recommend the ULD or 14-caliber secant with a 0.014 offset from tangent.
The smallest possible eliptical ogive is 1/2 or 0.5-E. That is a circle or ball, because the length of the nose is half the caliber, or the exact radius of the bullet.
www.bulletswage.com /design.htm   (4982 words)

  
 Benchrest Central Forums - Never thought to much about this, but. . .
Ogives are classified by their "caliber”, or length to diameter ratio.
Thus a nose that is one inch diameter and three inches long is a “3-to-1” (3:1) ogive and has a caliber of 3.
The location of the center of the radius defines whether it is a tangent or secant ogive.
www.benchrest.com /forums/showthread.php?t=8180   (325 words)

  
 Ogive Nose Cones
A tangent ogive has an arc which meets the body contour smoothly, thereby creating no break in line where the ogive joins the cylindrical body.
In other words, the center of rotation of the arc is in the plane of the base of the nose.
Using Figure 1 and Figure 3, along with some mathematical maneuvering, you can derive equation (1a).  As my math professors in college were so fond of saying, "the solution to that exercise will be left to the student to complete…" (or see Appendix A).
www.geocities.com /rocketguy_101/ogive/OgiveNoseCones.htm   (852 words)

  
 Lilja Precision Rifle Barrels - Articles: A Look at Bullet Ogives and Chamber Throat Angles
The ogive length is determined mathematically with a tangent radius.
Its length depends on the radius of the ogive and the meplat diameter.
Then, using calculus the axial distance can be determined between the point where the ogive and bearing surface meet and the point on the ogive where the diameter is bore diameter.
www.riflebarrels.com /articles/bullets_ballastics/throat_angles.htm   (1005 words)

  
 Ogive Length VS Minimum Weight
Making the ogive (nose section) of a bullet longer, with the same size tip, means that there is more volume of material in the ogive.
The arrow "C" indicates the start of the ogive curve in the die, which is the shortest bullet that can be made, although it probably will be undersized by.0005 to as much as.002 inches.
Two limitations are the remaining strength of the walls left in the bullet (too thin, and the bullet may become too fragile for handling or forming the ogive without crushing the bullet), and the minimum bullet length compared to the length of the cavity (too long a punch may limit the minimum bullet length).
www.corbins.com /minwt.htm   (2048 words)

  
 The Normal Cumulative Distribution and the Logistic Ogive   (Site not responding. Last check: 2007-10-28)
There is a convenient arithmetical relationship between the unit normal ogive and the logistic ogive.
The Figure depicts the exact relationship for the upper halves of the ogives.
Close to the center, the logistic ogive is about 1.6 times further away from the y-axis than the normal ogive.
www.rasch.org /rmt/rmt112m.htm   (275 words)

  
 W&B Scientific - Towards the Investigation of Interrupts   (Site not responding. Last check: 2007-10-28)
OGIVE, our new system for gigabit switches, is the solution to all of these issues.
Obviously, the architecture that OGIVE uses is not feasible.
Furthermore, the architecture for OGIVE consists of four independent components: SCSI disks, peer-to-peer theory, the Ethernet, and Smalltalk.
wbsci.org /Miscellaneous/76211/Towards-the-Investigation-of-Interrupts.html   (2123 words)

  
 Mountain Molds Ogives   (Site not responding. Last check: 2007-10-28)
  All of the ogives that I make at the moment are tangential ogives, meaning the ogive is tangent to the front band (or bore riding band, as the case may be).
  There is only one radius that will produce a tangential ogive for a given metplat, band diameter, and nose length, so once you have defined these parameters, the online design program determines this radius and displays it (in inches) near the bottom of the page.
  On ogival flat point revolver bullets, the "fat" part of the ogive may cause difficult chambering if the bullet is sized to throat diameter, as it should be.
mountainmolds.com /helpOgive.htm   (395 words)

  
 Amazon.com: Ogive   (Site not responding. Last check: 2007-10-28)
The Ogive as a RCS compact range standard (SuDoc NAS 1.26:184832) by A. Dominek (Unknown Binding - 1989)
A GTD analysis of Ogive pedestal (SuDoc NAS 1.26:181269) by Kin-Yue Albert Lai (Unknown Binding - 1986)
An investigation of the effects of AFT blowing on a 3.0 caliber tangent Ogive body at high angles of attack (SuDoc NAS 1.26:190934) by Nathan M. Gittner (Unknown Binding - 1992)
www.amazon.com /s?ie=UTF8&search-alias=aps&keywords=Ogive&page=1   (294 words)

  
 Introduction to tropical fish stock assessment - Part 1: Manual (French version not published)
When the fraction retained is plotted against the mid-length of the corresponding length group, it appears that the points are following a sigmoid curve, which reaches 1.00 (100% retention) at a certain length and which approaches 0.00 (0% retention) at a certain small length.
The fractions retained of the observed selection ogive are presented in column F of Table 6.5.1.
However, if the selection ogive is known it is possible to estimate the unbiased sample, i.e.
www.fao.org /docrep/W5449E/w5449e08.htm   (7735 words)

  
 Reverse Ogive   (Site not responding. Last check: 2007-10-28)
Consisting of a hollow, lightweight brass or bronze shape and fired at supersonic velocity, the unique concave (reverse) ogive of the THV bullet cleaves soft tissue as it penetrates, and as these tissues flow across the ogive they accelerate laterally and are energetically propelled radially outward off the bullet's shoulder.
An armor piercing variety of the reverse ogive round is available.
In this case, the bullet is constructed of heat-treated steel, with a guilding alloy or plastic rotating band designed to protect the weapon's barrel.
matrix.dumpshock.com /raygun/ammo/special/rothv.html   (206 words)

  
 Untitled Document
A tangent ogive is an arc of a circle that meets the bullet body contour smoothly, creating a smooth transition where the ogive joins the cylindrical body.
The center of rotation of the arc lies in the plane of the base of the nose.
The dimensions of a Tangent Ogive may be defined by 4 dimensions: The radius of the curve, the length of the nose, the base diameter and the tip diameter.
www.uslink.net /~tom1/Tech/Tangent_Ogive.htm   (230 words)

  
 Ogive   (Site not responding. Last check: 2007-10-28)
An ogive is a graph of a cumulative frequency or cumulative relative frequency distribution.
The data values are shown on the horizontal axis.
Either the cumulative frequencies or cumulative relative frequencies are shown on the vertical axis.
grail.cba.csuohio.edu /~popovich/oms/Ch02/sld024.htm   (37 words)

  
 DTAC 6mm 115gr Specifications
Also, the jacket stress values look ok when compared to the Berger 6mm, 115 grain VLD, a bullet which tends to distort in the barrel or while exiting the barrel, causing it to miss the target completely.
The 6mm, 115 grain SMK with a three grain reduction in core weight would have about the same ogive jacket stress as the 6mm, 107 grain SMK or 56 ksi, under similar load conditions.
The ogive jacket stress in the 115 grain, 6mm SMK could be reduced below the 60 ksi estimated above by changing the boat tail angle to 7 degrees, thus moving the top of the core further into the jacket.
www.6mmbr.com /DTAC115hbc.html   (289 words)

  
 [No title]
% nosecone.ps - by John Cavanaugh, July 1996 % % PostScript to draw tangent ogive, parabolic, elliptical, % and conical nose cones.
% % Tangent ogive code taken from the rec.models.rockets archive % (author not attributed).
Using ogive, parabolic, or conical with no % parameters uses the same parameters as the previous nose cone.
www.ibiblio.org /pub/archives/rec.models.rockets/PROGRAMS3/tempp   (275 words)

  
 ogive - OneLook Dictionary Search
OGIVE : 1911 edition of the Encyclopedia Britannica [home, info]
Ogive : AMEX Dictionary of Financial Risk Management [home, info]
Phrases that include ogive: ogee or ogive arch, von kármán ogive
www.onelook.com /?w=ogive   (247 words)

  
 Minimum Wave Drag, Sears-Haack Body, von Karman Ogive   (Site not responding. Last check: 2007-10-28)
It can be proved that the wave drag is proportional to the volume and inversely proportional to the fourth power of the body length.
The Sears-Haack body is a slender body of revolution pointed at both ends, that corresponds to the minimum wave drag (for given volume and length) of a linear distribution of sources at supersonic speeds.
The von Kármán ogive is a slender body of revolution pointed at one end only (ogive).
aerodyn.org /Drag/super-drag.html   (290 words)

  
 Precision Ballistic Coefficient Estimator
The Ballistic Coefficient of tangential ogive jacketed bullets traveling at velocities above the speed of sound can be calculated to a reasonable degree of accuracy if careful measurements are made to determine the actual radius curve of the nose portion and the boat tail (if any) dimensions.
Most ballistic calculators require that the bullet be laid upon a chart of different profiles(such as the Coxe-Bugless Chart) in order to find a curve that most closely matches the curve of the ogive of the bullet.
This value, divided by the diameter of the bullet returns the "Caliber of the Ogive".
www.uslink.net /~tom1/calcbc/calcbc.htm   (668 words)

  
 [No title]   (Site not responding. Last check: 2007-10-28)
Move the ogive to an appropriate spot on your worksheet.
If you click once on the ogive, you can drag its corners to size it the way you want.
Similarly, if you double-click on one of the ogive lines you can change other settings such as line color and thinckness.
www.westmont.edu /~howell/courses/ma5/ExcelHelp/Ogive/Ogive.html   (310 words)

  
 ss-2
Son ogive à grande puissance pouvait neutraliser toute concentration ou dépôt ennemi, com me il l'a prouvé à Darhan en Arabie saoudite en 1991.
Cons truit à mille exemplaires, il logeait dans des silos bé tonnés et portait soit une ogive de 950 Kt, ou 3 têtes de 250 Kt chacune.
Le modèle 1 emporte une seule ogive de 27 Mt, tandis que le modèle 2, plus rapide et précis, porte une ogive de 20 Mt. Le modèle 3 porte un étage con trolé par un ordinateur de bord qui régit les 18 ogives lancées (10 véritables + 4 leurres IR).
meltingpot.fortunecity.com /chad/95/ss-2.htm   (898 words)

  
 Logit and probit
Probits are the "natural" units for the unit normal cumulative distribution function, the "normal" ogive.
The normal ogive and the logistic ogive are similar, and a conversion of 1.7 approximately aligns them.
It uses the logistic ogive because of its mathematical properties, not because of its similarity to the cumulative normal ogive.
www.winsteps.com /winman/whatisalogit.htm   (771 words)

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