Showing papers on "Vertical plane published in 2005"

Ultrasonic shear with asymmetrical motion

Abstract: Devices providing ultrasonic clamped cutting using asymmetrical motion include a housing (135) and ultrasonic waveguide (179). A longitudinal axis (400) extends through the center of mass of the ultrasonic waveguide (179). An actuating assembly provides opposable movement of a clamp arm (310) with respect to the cutting blade (178), the movement defining a vertical plane having a vertical axis (430) orthogonal to both the longitudinal axis (400) and a horizontal axis (440). An end-effector (185) coupled to the ultrasonic waveguide (179) includes a cutting blade (178) that cuts using ultrasonic motion. The blade's center of mass (500) may be offset from the longitudinal axis (400), providing motion of the blade in both the longitudinal and vertical axes concurrently. Excursion of the cutting blade (178) in the direction of the horizontal axis (440) that may be limited to less than 92%, and in the direction of the vertical axis (430) of more than 8%, of an excursion of the cutting blade (178) in the direction of the longitudinal axis (400).

Kinematics and depth-integrated terms in surf zone waves from laboratory measurement

Abstract: Kinematics of nominally periodic surf zone waves have been measured in the laboratory using LDA (laser Doppler anemometry), above trough level as well as below, for weakly plunging breakers transforming into bores in shallower water. The aim was to determine, through phase- or ensemble-averaging, periodic flow structures in a two-dimensional vertical plane, from large-scale down to small-scale vortical structures. Coherent multiple vortical structures were evident at the initiation of breaking, becoming elongated along the surface during bore propagation. The initial region is likely to become more extensive as waves become more strongly plunging and could explain the difference in turbulence characteristics between plunging and spilling breakers observed elsewhere

Investigation on the traceability of three dimensional scanning electron microscope measurements based on the stereo-pair technique

Abstract: An investigation was carried out concerning the traceability of dimensional measurements performed with the scanning electron microscope (SEM) using reconstruction of surface topography through stereo-photogrammetry. A theoretical description of the effects that the main instrumental variables and measurement parameters have on the reconstruction accuracy of any point on the surface of the object being imaged was undertaken. This description was based on the model function introduced by Piazzesi adapted for eucentrically tilted stereo-pairs. An analysis of the sensitivity coefficients for the vertical elevation model has identified the most important instrumental variables and measurement parameters to be the tilt angle and the magnification calibration. An equation describing the theoretically determined uncertainty of the vertical elevation was produced. An experimental investigation was carried out involving: (i) magnification calibration using a steel scale with 50 μm pitch at low magnifications, and a 2D calibration grating with 2.120 μm pitch at high magnifications; (ii) tilt angle calibration by laser interferometry; (iii) vertical elevation calibration using gauge-block steps; (iv) calibration in the vertical plane using two ISO 5436 type C roughness standards. Results from magnification calibration and tilt angle measurement were used for calculating the theoretical uncertainty on the vertical elevation. Experimental deviations measured on gauge-block steps showed slightly bigger values than those calculated from the theoretical model. Lateral measurement on the reconstructed three-dimensional topography of the type C roughness standards showed good agreement with the nominal profile wavelength values.

Delimitation border constituting profile for e.g. floor, has gutter like edge delimiting reception space for lighting device that emits light beam oriented in direction of ground to form strip light

Abstract: The profile (1) has a plane application side (6) applied on the units of a floor or a surface to be delimited, and a visible concave or convex side (7), where the profile is positioned in an erect state in a vertical plane or is applied on a raised horizontal plane A gutter like edge (2) delimits a reception space (3) for a lighting device (4), which is in the form of a garland The device emits a light beam oriented in the direction of the ground to form a strip light The edge has an opening (13) oriented on the side (7) in the direction of the base of the profile

Effect of electrode orientation in arc flash testing

Abstract: The arc flash hazard calculation method proposed in IEEE 1584 is based on tests with the arcing electrodes in a vertical plane and the calorimeters arranged at 90/spl deg/ to this plane. In this paper the results of tests using the IEEE test set-up with both vertical and horizontal electrodes are given. High-speed videography and incident energy measurements show that the arc flash hazard is much worse with the horizontal orientation. However current-limiting fuses are effective in limiting the incident energy, even in worst-case arcing conditions, provided that the bolted-fault current is high enough to cause them to operate in their current-limiting mode. The incident energy values are shown to depend on the size of the trigger fuse wire used. The effect of phase imbalance is also considered.

Vehicle illumination lamp

Abstract: A cylindrical lens extends generally in a width direction of a vehicle, and light from three light-emitting elements, rearward of a rear focal line of the cylindrical lens, is reflected forward by three reflectors. A reflecting surface of each reflector has an elliptical vertical cross-sectional shape in a vertical plane perpendicular to the rear focal line. The first focus is at a center of light-emission of the corresponding light-emitting element, while the second focus lies at a point in the vicinity of the rear focal line. The rate of utilization of light flux from each light-emitting element is enhanced, and a luminous distribution patter having a relatively small width in an upward-downward orientation is formed. When the cylindrical lens and each reflector are deviated from their respective proper positions in the direction of the width of the vehicle, the luminous distribution patter of a constant shape can be formed.

Geometric analysis of the V-Y advancement flap and its clinical applications.

Abstract: Background Geometry is fundamental in the comprehension of local flap design. The purpose of this study was to discuss the differences between the V-Y advancement flap and other local flaps, understand its geometry, and analyze its clinical applications. Methods The analysis was based on qualitative measurements of an injury, taking into consideration the following dimensions: largest diameter, shortest diameter, and depth. Standardization of the flap design consisted of directing its advancement over the shortest diameter and making the V base match the size of the largest diameter. The flap was analyzed in two planes: the horizontal plane includes the V-Y design and the vertical plane includes the flap pedicle. The height of the flap can be obtained by simple trigonometry, taking into consideration the largest diameter and alpha angle in the horizontal plane. In the vertical plane, where the pedicle and pivot plane are positioned, for known shortest diameter and depth, the final depth of the pivot plane can be calculated using Pythagoras' principles. Results This analysis was applied to 25 patients with adequate skin coverage at follow-up. A correction factor was added to reduce the overdeepening of the vertical plane calculations. The final concepts for clinical application in the classic deep pedicle V-Y flap design are to calculate the length of the V by modifying the alpha angle and to move the pivot plane deeper to accomplish optimal flap movement. Conclusions Using these principles, tension-free closure of the Y and appropriate advancement of the flap are obtained.

Loudspeaker enclosure element for forming vertical line array systems with adjustable horizontal and vertical directivity

Abstract: A sound reinforcement system is disclosed for the reproduction of wide-range high-power sound, which comprises several loudspeaker enclosures, each containing at least one driver or loudspeaker with an emission throat, a duct with parallel or inclined walls between the emission throat of the driver or loudspeaker and a diffraction slot, and a wave guide that continues from the diffraction throat onwards, consisting in divergent walls, of which the inclination of at least one can be varied. Each loudspeaker enclosure element is equipped with mechanical parts on each side, for its connection to other identical enclosure elements, positioned vertically one above another and horizontally alongside one another, for a variation of the inclination of each enclosure element on the vertical plane, regulation of the wave guide aperture on the horizontal plan and regulation of vertical and horizontal sound dispersion.

Multi-engine aircraft

Abstract: The invention relates to a multi-engine aircraft whose at least two engines (2, 3) are fixed to the fuselage wings symmetrically with respect to the longitudinal vertical plane of symmetry thereof, respectively and the third engine (7) is provided for the tail of the fuselage which comprises tail-planes in the view of said longitudinal plane The tail-planes (9, 10) define a channel (11) symmetrical with respect to the longitudinal plane of the fuselage and the third engine (7) is disposed on the plane of symmetry of the channel corresponding to the longitudinal plane and mounted on the top part of the fuselage in an elevated manner and before the tail-planes in such a way that output of said third engine is arranged substentially upon the input of the channel (11) defined by said tail-planes

Antenna mounting bracket assembly

Abstract: An antenna mounting bracket assembly is disclosed which enables an antenna to be secured to either a vertically disposed support member or an angularly disposed support member with the antenna being disposed in a vertical plane in either case.

Ergonomic chair arm

Abstract: The invention provides a chair armrest that is variably adjustable to allow a user to assume an ergonomically preferred sitting position. The ergonomic chair armrest comprises, either separately or together, an arm support assembly capable of adjustment to various positions through a vertical plane and an arm pad assembly capable of adjustment to various positions through a horizontal plane. The invention further provides an ergonomic chair having an armrest that is adjustable in both a vertical plane and a horizontal plane.

Frameless portable suspension system

Abstract: A frameless portable suspension system includes a tensional two-dimensional material having a frameless perimeter, opposite upper corners, and a bottom secured to ground, the tensional two-dimensional material located in a vertical plane perpendicular to the ground; a pair of adjustable spring mechanisms coupled to the upper corners and providing the upper corners in tension in an upward vertical direction and a outward horizontal direction, and wherein the tension in the tensional two-dimensional material is adjustable with the adjustable spring mechanisms while the tensional two-dimensional material is under tension and the tensional two-dimensional material is positionable in a vertical plane perpendicular to the ground upon adjustment of the tension in the tensional two-dimensional material with the adjustable spring mechanism.

Numerical analysis of ground plane size effects on patch array antenna characteristics for mobile satellite communications

Abstract: In this research, a patch array antenna for mobile satellite communications aiming at ETS-VIII applications has been developed. The ground plane size effects on the antenna characteristics were investigated. Finite and infinite ground planes were analysed by the finite integration technique (FIT) for time domain analysis, the finite element method (FEM) and the method of moments (MoM) for spectral domain analysis. Then measurements of the fabricated antenna were performed to confirm the analysis results. It is clear that the frequency characteristics of the axial ratio are influenced by the variation in the ground plane size. When the ground plane size is increased, the edge-diffracted field causes tilting of the beam in the direction of low elevation angles and causes a decrease in the maximum gain and in the 3 dB-beamwidth of axial ratio in the elevation plane. In the conical-cut direction, an increase in ground plane size induces a decrease in the 3 dB-beamwidth of axial ratio for FEM, but shows the opposite result for FIT and measurement. In addition, an increase in ground plane size also induces increases in maximum gain and its 6 dBic-beamwidth along with a shift in the maximum gain in the direction of low azimuth angle. Copyright © 2004 John Wiley & Sons, Ltd.

Operation assisting device

Abstract: PROBLEM TO BE SOLVED: To provide an operation assisting device which can perform an effective assistance concerning an operating judgement taking into consideration the height level between a vehicle and an object on a road without requiring a distance measuring system which needs the additional expense for equipments and costs. SOLUTION: The operation assisting device assists the operation of a vehicle by displaying a photographed image in the running direction of the vehicle. The intersection line of a reference vertical plane 3 of a marked portion 20 projecting in one direction from the vehicle 10 with the ground surface 2, the reference vertical plane 3 being parallel with the direction of a car width at the position corresponding to the position of the marked portion 20 in the running direction of the vehicle, is displayed on the monitoring image as a base line 32, and also a level line 33 showing the height of the marked portion over the ground surface in the reference vertical plane is displayed on the monitoring image. COPYRIGHT: (C)2007,JPO&INPIT

Method and system for generating three-dimensional antenna radiation patterns

Abstract: A method and system for generating three-dimensional antenna patterns from two-dimensional cross sections. The method involves an estimate (1006), on a given vertical plane, obtained by rotating a gain value (1010) from the front of the vertical pattern using the horizontal pattern (1004) as a weight; a second estimate, which could be on a separate vertical plane, obtained by rotating a gain value (1014) from the back of the vertical pattern, and a final estimate (1206) obtained by connecting the first two estimates across their respective planes. The invention yields smooth reasonable surfaces (1704) that satisfy the vertical and horizontal boundary conditions, exhibits no mathematical artifacts, and improves the accuracy of propagation calculations of radio frequency signals. The method is implemented in a software system (1812) that provides interactive analysis and visualization capabilities for antenna patterns in three dimensions.

Parameter regulatable bammer blow device along with welding

Abstract: The utility model provides a parameter regulatable hammer blow device along with welding. A platform is supported by a post, and an axis element is clamped and processed by a clamping chuck. The platform is connected with an air hammer through a cramping apparatus, and the air hammer is connected with an oil-water separator and an air compressor through a gas valve. The vertical plane of the cramping apparatus is connected with the air hammer through an adjusting vertical plane. A combined seam of the vertical plane of the cramping apparatus and the lower part of the adjusting vertical plane is circular arc sliding rail. The utility model can neatly adjust the hammer frequency and the hammer distance. The distribution of stress of the welding position can be effectively modified after hammering. The generation of the heat crack can be prevented, and the higher welding quality claim can be achieved.

Wireless device with integrated level

Abstract: An integrated level ( 10 ) in a wireless device ( 11 ) can include a wireless transceiver within a housing ( 13 ), a processor ( 19 ) coupled to the wireless transceiver, a presentation device such as a display ( 12 ) or speaker ( 17 ) coupled to the processor, and an accelerometer ( 18 ) coupled to the processor where the display can serve to visually simulate the function of a level. The integrated level can further include a reference plane ( 15 ) added to the housing for proper level operation. By orienting the housing and the reference plane over a measurement plane ( 20 ), a determination of a deviation from a vertical plane or a horizontal plane can become apparent on the display. The display of the integrated level can provide a graphic user interface with a simulated level having a three segmented vertical bubble representation ( 16 ) and a three segmented horizontal bubble representation ( 14 ).

Lifting Strengths in Different Horizontal Distances of Objects to be Lifted

Abstract: This study recruited eleven healthy males and thirteen healthy females to examine their maximum two-handed isometric back lifting strength, upper-body lifting strength, arm lifting strength and shoulder lifting strength in three different horizontal distances of objects to be lifted (toes were anterior to, aligned with, and posterior to the exerted handle). The results showed that human lifting strength decreased significantly as the toe position shifted from anterior of the vertical plane of the exerted handle to posterior of the vertical plane of the exerted handle. The strength order relationship between back lifting strength and upper-body lifting strength was dependent on the horizontal distance of objects to be lifted. This study also observed that the effects of the horizontal distance of objects to be lifted on human lifting postural angles for the four assessed lifting types mainly occurred in the upper extremities. This study recommends that practitioners should not overlook the effects of the horizontal distance of objects to be lifted on lifting strength when evaluating workers' lifting strength for screening purposes.

Temporary balustrade for scaffolding of building, has frame made of aluminum, and fixation pins for positioning frame in one vertical plane situated in front of another vertical plane passing through posts during utilization of balustrade

Abstract: The balustrade (2) has a rectangular frame (3) extending in a vertical plane and whose lower part is provided with coaxial fixation pins (14, 15) staggered on same side with respect to the plane. The fixation pins temporarily connect the balustrade with posts (24) of vertical frames (22) of a scaffolding structure. The fixation pins position the frame in another vertical plane situated in front of a third vertical plane passing through the posts during the utilization of the balustrade.

Three-Dimensional Running is Unstable but Easily Stabilized

Abstract: We analyze a simple three-dimensional model for running: the spring-loaded inverted pendulum (3D-SLIP). Our formulation reduces to the vertical plane (SLIP) and horizontal plane lateral leg spring (LLS) models in the appropriate limits. Using the geometry and symmetries intrinsic to the system, we derive an explicit approximate stride-to-stride mapping and show that all left-right symmetric gaits are unstable. Continuation to fixed points for the ‘exact’ mapping confirms instability, and we describe a simple feedback control of leg placement at touchdown that stabilizes them.

A method of evaluating the influence of hydrodynamic coefficients on controllability of submarine

Abstract: Based on the motion equations of the submarine,a sensitivity index is introduced.Three typical maneuvers are chosen to be the objects under study:overshoot maneuver in the horizontal plane,overshoot maneuver in the vertical plane and turning circle maneuver in the horizontal plane.An evaluation is made on the influence of hydrodynamic coefficients on the controllability of submarine.From the computer simulation of one type of submarine,the feasibility of the method is proved.

Reinforcing method of single arrangement existing foundation for low-rise housing

Abstract: PROBLEM TO BE SOLVED: To provide a reinforcing method of a single arrangement existing foundation for a low-rise housing capable of contributing reinforcement by additional work to shear strength reinforcement of the whole foundation without being damaged in the existing foundation itself. SOLUTION: An additional reinforcing bar assembly body 6 consisting of a reinforcing vertical bar 4 located in one vertical plane at an interval in the longitudinal direction and a sash bar material 5 for connecting the reinforcing vertical bar is fitted to a rise surface 3a of a single arrangement existing RC foundation 3 for the low-rise housing reinforced by a main bar 1 extended in the longitudinal direction while locating in one vertical plane at an interval in the vertical direction and a vertical bar 2 placed at an interval in the longitudinal direction for connecting the main bar. A polymer cement mortar 7 is applied to the foundation rise surface 3a so that the reinforcing bar assembly body can not be exposed, the foundation is widened and, at the same time, shear strength can be increased. Construction work can be very easily finished within a short period of time, and cost reduction of work can be promoted. COPYRIGHT: (C)2006,JPO&NCIPI

VHF radar observations of weak echo regions in tropical mesoscale convective systems

Abstract: [1] A multibeam VHF radar experiment, which was carried out to explore the mesoscale convective systems over Gadanki (13.5°N, 79.2°E), is discussed. These observations revealed an interesting pattern in the height horizontal distance section of radar reflectivity. A weak echo region (WER) is observed in the height region of ∼8–14 km well above the melting layer, which is believed to be first of its kind in VHF radar observations. A single vertical velocity core of ∼7 km vertical extent with ∼10 ms−1 vertical velocity is observed and it has been noticed that the WER is forming in the peripheral region of large vertical velocities. An attempt has been made to explain the plausible mechanism responsible for the formation of WERs. Significance of present results lies in showing the capability of VHF radar to scan the convective system in vertical plane and in providing observational evidence for existence of WER above the melting level.

Detection of hard x-rays in air for precise monitoring of vertical position & emittance in the esrf dipoles

Abstract: The un-used X-rays produced in each of the 64 ESRF dipoles are absorbed in so-called crotch absorbers at the end of the dipole. With 40mm of Copper + 5mm of Steel only 250uW/mrad (out of total power fan of 154W/mrad) traverse the absorber. About 20% of these ~170KeV energy X-rays are converted by a 0.5mm thick Cadmium Tungstenate (CdWO4) scintillator into visible light that is collected and focussed by simple optics on to a commercial CCD camera. This compact monitor operates in air and is situated just behind the crotch chamber. Knowing the small vertical divergence of the 170KeV photons and the distance of the source-point to the scintillator, it possible to calculate precisely the vertical electron beamsize at this sourcepoint. The light yield is enough to measure at >1KHz frequency, with a submicro-meter resolution of the beam position, thereby also constituting a powerful tool for beam stability measurement in the vertical plane. The principle, the practical realisation and the results obtained with a prototype since Jan.2005 will be presented.

Rotation device for vacuum vertical planet clamp

Abstract: A vacuum vertical planetary holder rotating device, which can improve uniformity of thickness of vacuum coating, works by that directly by hydromagnetic transmission, generator drives planetary holder rotate along vertical plane Designing Support and location bearing in the double-layer water-cooled container, it prevents vacuum grease in the bearing from volatilizing and charring because of excess temperature, avoids the pollution to vacuum coating, ensures the normal usage of bearing, and improves the vacuum degree and the operation stability The invented can apply extensively in vacuum coating and the related industry, especially to vertical rotational structure

Electron beam source and x-ray source

Abstract: PROBLEM TO BE SOLVED: To provide an electron beam source and an X-ray source which have a high luminance and a long life like a nano-silicon plane electron source and are capable of converging and emitting electrons like a point electron beam source, and are low in cost and easy to handle. SOLUTION: The electron beam source is equipped with a high energy vertical plane electron source (2) and acceleration focusing electrodes (3, 4) which accelerate and converge the electrons emitted from the high energy vertical plane electron source (2). COPYRIGHT: (C)2005,JPO&NCIPI

Apparatus for remotely counting objects in a collection using differential lighting

Abstract: Apparatus for remotely counting the number of individual objects of the same general shape and disposed in a collection having a front end in a common vertical plane.

Grass trimming device with dual linehead spool hubs

Abstract: A grass trimming device with dual linehead spool hubs is provided. The grass trimming device is adapted to simultaneously trim grass at both a substantially horizontal plane and a substantially vertical plane. The device includes actuation switches which also allow linehead spool hubs to be used in an independent manner.