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211 results about "Transition edge" patented technology

A transition-edge sensor (TES) is a type of cryogenic energy sensor or cryogenic particle detector that exploits the strongly temperature-dependent resistance of the superconducting phase transition

Drilling tool and indexable drill bit

A drilling tool includes a basic body defining a center axis of rotation and having two chip channels and two replaceable indexable cutting bits in the form of a center bit and a periphery bit mounted in respective center and periphery pockets formed in an axially front end of the basic body. The center bit and the center pocket are spaced radially from the periphery bit and the periphery pocket along a first diametrical plane of the basic body. At least the center bit includes four identically-shaped cutting edges, one of which constituting an operative cutting edge intersected by a second diametrical plane oriented perpendicularly to the first diametrical plane. Each cutting edge of the center bit comprises first and second part edges joined by a transition edge portion. The first and second part edges of the operative cutting edge constitutes operative first and second part edges, respectively; the operative first part edge being spaced from the center axis and situated closer than the operative second part edge to an outer periphery of the basic body. An axially forwardmost portion of the operative first part edge is disposed axially forwardly of an axially forwardmost portion of the operative second part edge, and an axially forwardmost portion of an operative cutting edge of the periphery bit lies axially between the axially forwardmost portions of the operative first and second part edges of the center bit, respectively.
Owner:SANDVIK INTELLECTUAL PROPERTY AB

Structures and processes for controlling access to optical media

InactiveUS20070143774A1Facilitate state changeCost productionOptical discsProtective material radiating elementsElectricityState variation
An optical disc is provided with an associated optical shutter. In a first state, the optical media interferes with the ability of an interrogating laser beam to read data from the optical media, and in a second state, the optical media is substantially transparent, enabling the laser beam to read the disc. A powering circuit is used to cause the optical shutter to transition from a first state to the second state. In one example, an integrated circuit acts as the powering circuit, as well as providing logic and processing functions. The integrated circuit also couples to an RF antenna, enabling the integrated circuit to communicate with an associated RF scanning device. The optical shutter may take various geometric shapes, and typically has an electrochromic material for facilitating state change. The electrochromic material may fill the shutter, or the material may form a pattern. The shutter may be positioned on the disk so that transition edge-effects are reduced, allowing for reduced interference with the laser beam when the optical shutter is in its clear state. The optical shutter does not cover the entire data area of the disc, and in one example, the optical shutter is quite small, allowing for lower cost production, as well as reducing power requirements to transition the electrochromic material. Power requirements may be further reduced by forming the electrochromic in a pattern. A small optical shutter may disable reading of disc, for example, by placing the small shutter over an important section of the disc, such as the lead-in area.
Owner:NXP BV

Cultivation rotation working part with bionic geometric structure

InactiveCN101548592ASoil cutting resistance is smallReduce power consumptionTilling equipmentsResearch ObjectClaw toe
The present invention relates to a geometric structure of rotation working part of used for driving type rototilling-tillage machine, and especially to a cultivation rotation working part with bionic geometric structure. The invention takes the fore leg claw toe of mole with high-efficient digging capability as a bionic researching object, extracts the special geometric structure characteristic and applies the geometric structure characteristic for designing the rotation working parts (rotary blade or stubble breaking blade) on the cultivation machinery. The component is mainly composed of a side cutting surface with a side cutting edge, a front cutting surface with positive cutting blade, a transition surface for connecting the front cutting surface and the side back surface, and a transition edge for connecting the front cutting edge and the side cutting edge. The invention is characterized in that the front cutting edge (6) adopts a bionic circular arc structure. The geometric shape is confirmed by the following equation: when the operation breadth of single blade of front cutting edge is L, the corresponding central angle of circular cutting edge is (theta), the corresponding radius is (r), and the number of circular arcs is (n), the corresponding expression is as follows: L/2nr=sin(theta/2). The cultivation rotation working part with bionic geometric structure according to the invention can greatly reduce the energy consumption in cultivation operation under the precondition that the cultivation quality is ensured.
Owner:JILIN UNIV

Rotating driving force receiver and drive component

ActiveCN102096352AReliable landingLanding smoothlyElectrographic process apparatusEngineeringImaging equipment
The invention relates to a rotating driving force receiver and a drive component. The receiver is provided with an inwards concave spherical surface, an approaching surface positioned on the periphery of the spherical surface, and a first convex pawl and a second convex pawl extended outwards, wherein the surfaces of each of the convex pawls are both provided with an occlusal surface matched with an imaging equipment drive component and two side surfaces which are used for guiding and are transited smoothly; the two side surfaces are abutted through a transition edge which is inclined relative to the direction of an axial line; the transition edge is provided with a first endpoint and a second endpoint; the second endpoint is positioned on the second surface; a first bottom line and a second bottom line are crossed at the second endpoint; the second endpoint is a point, farthest from the axial line, on a convex pawl; and the first endpoint is closer to the axial line than the second endpoint. The rotating driving force receiver and the drive component can reduce a dead point position area when a machine falls or a processing cartridge is taken out to the maximum and avoid a locking problem between the rotating driving force receiver and the imaging equipment drive component, so that a photosensitive drum can be driven to work safely and reliably.
Owner:PRINT RITE UNICORN IMAGE PROD CO LTD

Semiconductor integrated circuit device, measurement method therefore and measurement system for measuring AC characteristics thereof

Disclosed is an AC characteristics measurement system that includes a flip-flop arranged in a loop of a ring oscillator; a clock generating circuit that receives a signal propagated in said loop of said ring oscillator and generates a clock signal to be supplied to said flip-flop; a delay adjustment circuit that receives a signal propagated in said loop of said ring oscillator and generates a data signal to be supplied to said flip-flop and that receives a control signal and variably controls the time difference between a transition edge of said data signal to be supplied to said flip-flop and an effective edge of said clock signal to be supplied to said flip-flop, based on said control signal; and a setup-hold changeover circuit that is provided at a preceding stage of said flip-flop and that switches the temporal before and after relation between a transition edge of said data signal supplied to said flip-flop and an effective edge of said clock signal, responsive to a control signal for performing changeover between the measurements of setup time and hold time. An AC measured value is derived from the value of the control signal at a time point of cessation of oscillation of a preset node of the loop.
Owner:RENESAS ELECTRONICS CORP

Special efficient turning tool for hogging ultra-large axial forgings

The invention discloses a special efficient turning tool for hogging ultra-large axial forgings. The hogging process of the hydrogenated cylindrical shells of the ultra-large axial forgings has the problems that a cutter cracks and fails under variable-load and variable-frequency mechanical impact, the radiating conditions in the cutting process are weak, the cutter and scraps are stuck together as the cutter body is softened by high temperature, and the like. The special efficient turning tool for hogging ultra-large axial forgings comprises a turning tool body (1), wherein a fastening screw hole (5) is arranged at the very center of the turning tool body; the turning tool body is of a regular pentagon shape, has five cutting edges and is provided with a front tool surface (2) and a bottom surface (3); a cutting surface (13) of the turning tool body is provided with a group of negative chamfer cutting edges (4); the front tool surface of the turning tool body is sequentially provided with a ellipsoidal bulge (6), an arrow-shaped bulge (7), a wave-shaped scraps guiding wall (8), a scraps containing groove (9) and an arc transition edge (10); and the bottom surface of the turning tool body is provided with a tool bottom radiating groove (11) and a tool body supporting structure (12). The special efficient turning tool disclosed by the invention is used as a turning tool for hogging the ultra-large axial forgings on a heavy-duty lathe.
Owner:HARBIN UNIV OF SCI & TECH
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