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Vectors and Direction The direction of a vector is often expressed as an angle of rotation of the vector about its "tail" from either east, west, north, or south. The direction of a vector is often expressed as an counterclockwise angle of rotation of the vector about its "tail" from due East. Directions are described by the use of some convention; the most common convention is that the direction of a vector is the counterclockwise angle of rotation which that vector makes with due East. www.glenbrook.k12.il.us /gbssci/phys/Class/vectors/u3l1a.html   (1105 words)

World Intellectual Property Organization   (Site not responding. Last check: 2007-11-06) This nominal beam direction is intended to be precisely perpendicular to the tilt axis 24 of the wafer holder, which is in turn designed so that a normal to the plane of the wafer 20 on the holder is also accurately perpendicular to this tilt axis. beam direction in the plane parallel to the tilt axis 24, the wafer holder is first oriented by adjusting the tilt and twist drives to bring a channelling axis or plane of the wafer 20 into accurate alignment with the nominal beam direction in the plane parallel to the tilt axis 24. During the beam direction adjustment, the intensity of the back scattered ion current is monitored by the control unit 32 to identify the beam direction setting at which the intensity is at a minimum. www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/27968.010419&ELEMENT_SET=DECL   (3882 words)

World Intellectual Property Organization   (Site not responding. Last check: 2007-11-06) Relative displacement between the substrate and the print head parallel to the feed direction, on the other hand, is typically generated exclusively by the feed system. Clearly, the dimension perpendicular to feed direction 50 must also be sufficient to accommodate the maximum intended width of flexible substrates to be used, while the dimension parallel to feed direction 50 may be either larger or smaller. Furthermore, in preferred implementations in which motion system 54 generates motion in direction 56 parallel to the feed direction, the dimension of table 42 parallel to feed direction 50 is at least twice, and preferably an order of magnitude greater than, the operative dimension of print head 52 in the same direction. www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/08889.010208&ELEMENT_SET=DECL   (2253 words)

Process and arrangement for producing dose profiles for the fabrication of structured surfaces - Patent 5620814 According to the invention, the beam has at least one shaped region in cross section, which shaped region is movable relative to the surface and whose extent in the movement direction of the relative movement, in combination with the velocity of the relative movement, determines the dose. The invention is directed to a process and an arrangement for producing dose profiles for the fabrication of structured surfaces with a beam which is used for exposure and is directed on the surface. In all constructions the shape of the diaphragm depends upon the direction of the relative movement, since the aperture in the movement direction, together with the velocity of the relative movement, determines the dose to which the object is exposed. www.freepatentsonline.com /5620814.html   (3679 words)

Grinding Hardness of Diamond The relative grinding hardness along [010] is the same in either direction, since this direction is normal to a symmetry plane. The length of the arrows is proportional to the relative grinding hardness in the direction of the arrows. Two of these may designate the orientation of the grinding direction (or plane being ground) and the third, the position of the plane on which measurements are made (or azimuth of grinding direction on the plane). www.minsocam.org /msa/collectors_corner/arc/diamondhard.htm   (1261 words)

United States Patent Application: 0030092496 A method of producing a virtual reality effect of changing acceleration direction comprising, rotating a subject relative to a center axis, rotating the subject relative to a second axis perpendicular to centrifugal force, and rotating the subject relative to a third axis perpendicular to the axis perpendicular to centrifugal force. curvilinear coordinates Relative to a reference object 40 or the center of mass distance d from the center of the rotating base or the distance Change the angular frequency of the rotating frame or the distance from the center of the rotating reference frame. The variation in direction r1 relative to simulator room 70 is produced by causing simulator 2.sup.nd angular orientation motor 80 to rotate simulator room 70 around room rotating axis arms 100a and 100b. appft1.uspto.gov /netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1='20030092496'.PGNR.&OS=DN/20030092496&RS=DN/20030092496   (926 words)

Light and Vectors If the source were stationary relative to its immediate external environment, then the TG of the source and the TG of the environment would have the same ‘relative velocity’ as a result of any motion common to both. What apparently happens is that the two velocities do alter the original direction of the photons, but the speed of the photons in the new direction relative to the TG is determined by the local clock rate. However, it will appear to the photons that they are traveling in a direction relative to the TG as determined by the vector addition of the forward velocity of the photons to the reverse velocity of the TG relative to their original direction. home.earthlink.net /~chkingston/VelAddition.htm   (1158 words)

targetedjumps This was the difference between the calculated jump direction, and the direction of the target, or the angle by which the spider jumped above the prey position. By moving prey toward these spiders from different directions, it is easy to demonstrate that direction relative to gravity is a key determinant of the maximum distance at which the spider will launch an attack (Hill, 1978). Memory of direction and position relative to gravity has also been shown to be a key factor in the ability of these spiders to retain a memory of relative prey position during the detoured pursuit of prey (Hill, 1978, 1979). www.users.qwest.net /~phidippus/paper1.html   (3851 words)

Naval Science 302: Lesson 6   (Site not responding. Last check: 2007-11-06) Note that in expressing wind direction, we always use the direction from which the wind is blowing; i. Relative and true wind are always on the same side of the ship. In any discussion of wind direction, true, relative, and apparent direction means the bearing the wind is blowing from- not the direction it is blowing to. dolphin.upenn.edu /~nrotc/ns302/6note.html   (345 words)

Hilbert Space The angular momentum of a particle relative to a direction in space is incompatible with the angle of rotation of that particle in a plane perpendicular to that direction in space. Although the total quantum state is a ray in which only the direction in Hilbert space is physically observable, the projective coordinates of this ray, onto a frame of reference of basic rays, are two-real dimensional vectors in the complex plane in which both the magnitude and relative direction are important. The absolute square of each complex direction cosine is the relative probability to measure a definite eigenvalue of the observable property represented by the given frame of reference in Hilbert space. www.qedcorp.com /pcr/pcr/hilberts.html   (2670 words)

Thurst type one-way roller clutch - Patent 4667788 The direction of angular offset is opposite to the direction of allowed relative rotation of the cam race. The clutch of the invention also includes a means to maintain the rollers with their axes angularly offset in the same direction as the cam ramp surfaces relative to a radial line of the cam race. Stated generally, cam ramp surfaces 16 are angularly offset relative to the radial line R in the direction opposite to the direction of allowed relative race rotation. www.freepatentsonline.com /4667788.html   (2562 words)

[Lf] ERP measurements & definitions   (Site not responding. Last check: 2007-11-06) Cymomotive force (c.m.f.) (in a given direction) The product formed by multiplying the electric field strength at a given point in space, due to a transmitting station, by the distance of the point from the antenna. This distance must be sufficient for the reactive components of the field to be negligible; moreover, the finite conductivity of the ground is supposed to have no effect on propagation. Radio Regulations No. 154 (b) defines the gain of an antenna in a given direction relative to a half-wave dipole G d, as the gain relative to a loss-free reference antenna isolated in space whose equatorial plane contains the given direction. www.amrad.org /pipermail/lf/2000q4/000825.html   (487 words)

Establishing more truth in true winds   (Site not responding. Last check: 2007-11-06) In several cases this height was given relative to the deck rather than relative to the water surface (since the waterline of vessels changes with the load, this error is understandable). The resulting change in wind characteristics (speed, direction, and the variation of these quantities) is highly dependent on shape of the vessel, instrument position, and wind direction relative to the vessel's heading. After all direction conversions, the modulus of the returned value must be taken with respect to 360° to ensure a direction between 0° and 360°. www.nodc.noaa.gov /woce_V2/disk10/truewind/paper   (7854 words)

USGS Geology in the Parks The arrows indicate the direction of relative movement, and the marker bed gives a clue as to the amount of displacement of the blocks. The arrows indicate the direction of relative slip, and the marker bed gives a clue as to the amount of displacement of the blocks. The relative movement is indicated by the arrows, and the marker bed expresses the displacement of the faults. wrgis.wr.usgs.gov /docs/parks/deform/7modelsa.html   (511 words)

Aeronautics - Principles of Flight (RELATIVE WIND) - Level 2 The relative wind, therefore, is the airflow produced by the aircraft moving through the air. The relative wind is in a direction parallel with and opposite to the direction of flight. It should be easy to see that the direction of the relative wind can also be different for the other parts of the airplane. www.allstar.fiu.edu /aerojava/flight33.htm   (564 words)

Three-Dimensional Sprags and Rollers One direction of relative rotation between the races causes the sprags to rotate so that the longest diagonal is in contact with the two races. Relative rotation between the races in the opposite direction causes the sprags to rotate so that the shortest diagonal is in contact with the two races. Relative rotation in one direction causes the rollers to roll up the wedge surface, engaging the clutch, wedging the rollers between the races, and providing a solid link for transmission of torque. www.ssl.umd.edu /projects/wrench/sprags   (587 words)

Define Objects Panel for USS_U2NCLE The magnitude and direction of the force vector must be specified, as well as the point at which the force is applied. If relative, the direction and point given correspond to the body position at time t=0. The "frame" flag denotes whether or not the force direction and location of application should be carried with the body (relative) or set to an unchanging point in space (absolute). www.erc.msstate.edu /simcenter/docs/uss_u2ncle/forces.html   (407 words)

Inertial frame of reference   (Site not responding. Last check: 2007-11-06) The term "inertia" refers to a direction through spacetime, and "frame" defines an area wherin the inertia is functionally the same for the relevant observers. The term is used in cases where relativity is considered, and a meaningful difference is drawn between the views of two observers with respect to their time and space intervals. By the very nature of human limits to a particular inertial frame, the various branches of physics are devoted to building functions that relate human observation to theoretical concepts of cosmology and quantum mechanics and the rules by which they interoperate to describe possible reference frames like our own. www.sciencedaily.com /encyclopedia/inertial_frame_of_reference   (499 words)

Decision Point ®: PMO: Part 1   (Site not responding. Last check: 2007-11-06) This demonstrates that, besides relative strength direction, you also need to be aware of the trend of the benchmark index. Since there is a direct relationship between the Diamonds and the Dow, the movement of their respective Price Relative lines is virtually identical, but, because Diamonds are one-tenth the value of the Dow, the Price Relative calculation for the Diamonds results in an index value one-tenth that of the Dow. Normally, the PMO direction tells us if strength is increasing or decreasing, and the steepness of the trend angle demonstrates the power behind the move. www.decisionpoint.com /tacourse/PMO_Course/PMO_Part01.html   (701 words)

Figure 1 The relative location and amount of each J99-specific sequence are shown immediately inside the second circle (the height of each line is proportional to the amount of unique sequence, and for larger regions the size relative to the equivalent 26695 region is indicated by a triangle proportional to the 26695 scale). Regions that are not coloured and translocations are transcribed in the same relative direction in J99 and 26695, whereas inversions result in genes being transcribed in the opposite relative direction in J99. The organization of J99 segments that share >90% identity to 26695 are depicted by the solid fl lines, with arrows indicating the relative orientation of the J99 segments with respect to 26695 segments. www.nature.com /nature/journal/v397/n6715/fig_tab/397176a0_F1.html   (407 words)

Brockett and Hiemstra: A conceptual framework for understanding self-direction in adult learning This distinction is not unlike the one made by Chene (1983) relative to the concept of autonomy. In both instances, the chances for success are relatively high, since the learner's expectations are congruent with the conditions of the learning situation. This does not mean that the learner was "unsuccessful," nor that the facilitator was "ineffective." Rather, it suggests that success and effectiveness are relative terms that depend on clear communication of needs and expectations among all parties engaged in the teaching-learning transaction. www.infed.org /archives/e-texts/hiemstra_self_direction.htm   (5364 words)

Learn more about Inertial frame of reference in the online encyclopedia.   (Site not responding. Last check: 2007-11-06) Inertial frames of reference appear prominently in both Newtonian relativity and Einstein's special theory of relativity. In Newtonian mechanics, any mass viewed from an inertial reference frame will appear either to be stationary or to be moving at constant speed in a straight line, if and only if the sum of forces acting upon that mass is zero. Different inertial reference frames may have different origins at any given moment in time, and their respective origins may be moving at constant speed and direction relative to each other. www.onlineencyclopedia.org /i/in/inertial_frame_of_reference.html   (381 words)

Perception: ECVP 2001 abstracts   (Site not responding. Last check: 2007-11-06) Subjects were moved physically at constant acceleration in the direction of the chest with the head either straight-ahead or 90 deg to one side. Combined visual and physical motion in all combinations was overestimated relative to vision-only judgments, irrespective of the direction of head motion, even when the visual and vestibular directions were opposite or orthogonal. We conclude that perception of the amplitude of self-motion is determined by visual acceleration and direction and the presence or absence of vestibular stimulation. www.perceptionweb.com /ecvp01/0380.html   (237 words)

Formulating the Universe - Chapter Three   (Site not responding. Last check: 2007-11-06) Einstein's Special Theory of Relativity is based on two postulates: 1) the principle of relativity (from which is gleaned the covariance of physical laws); and 2) the constancy of c (the speed of light) to all observers. The signal goes at speed c + V relative to the capacitor in one direction, and c - V relative to the capacitor in the opposite direction. And if the undulations are transverse in character to the direction of motion of the matter, as is the case with photons, we should expect that the energy and thus the mass of the particle would be proportional to the transverse permittivity. www.wcug.wwu.edu /~erikba/ziegler/1-3.html   (3236 words)

Surface Data Set Description During the period JD 63 - 69.7 % the ship wind sensor was inoperational and wind speed % and direction were based on hourly visual estimates, % interpolated to 5-minute values. Relative (wrt ship) wind % speed and direction (scalar and vector) are no good during this % period and are set to NaN. % Wind speed and direction are for 23 m elevation except for period % JD 63 - 69.7 when values are nominally for 10 meter elevation. www.weather.nps.navy.mil /~psguest/labsea/readall5.html   (516 words)

[No title] Thus AEB means the Euler pole describing the movement of plate B relative to plate A—that is, the movement of B with respect to the reference frame in which A is fixed. Given the angular velocity vector for the Pacific moving relative to the North America Plate, use a calculator to verify the values for the five quantities shown in the first row of the table on the right side that conclude with the plate direction and speed. Mark with an arrow the direction of relative motion (~325 E) of the Pacific Plate and write the speed in cm/yr beside it. www.es.ucsc.edu /~rcoe/eart110c/Lab1_text.doc   (1206 words)

Encyclopedia of Bullseye Pistol In order for the bullet to hit the center of the target, the shooter must aim the pistol and give the barrel a definite direction relative to the target. When the eye is focused on the target the relatively small movement of the arm appears magnified. Control of the shot is lessened in direct proportion to the loss of concentration on sight alignment. www.bullseyepistol.com /chapter2.htm   (1111 words)

Naval Science 302: Lesson 1   (Site not responding. Last check: 2007-11-06) Comprehend "bearing drift" and apply the concept in determining relative motion. Relative Motion: motion of one object with respect to another object. Bearing Drift: a measure of relative motion; this indicates the rate of change (if any) of another vessel's bearing, and the direction of this change (right or left). dolphin.upenn.edu /~nrotc/ns302/1note.html   (238 words)

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