915results about How to "Avoid collecting" patented technology

A pump liner is used to direct a laminar flow of purge gas across a workpiece to remove contaminants or species outgassed or otherwise produced by the workpiece during processing. The pump liner can take the form of a ring having a plurality of injection ports, such as slits of a variety of shapes and/or sizes, opposite a plurality of receiving ports in order to provide the laminar flow. The flow of purge gas is sufficient to carry a contaminant or outgassed species from the processing chamber in order to prevent the collection of the contaminants on components of the chamber. The pump liner can be heated, via conduction and irradiation from a radiation source, for example, in order to prevent the condensation of species on the liner. The pump liner also can be anodized or otherwise processed in order to increase the emissivity of the liner.

A plasma reactor for processing a workpiece includes a reactor enclosure defining a processing chamber, a base within the chamber for supporting the workpiece during processing thereof, a semiconductor window electrode overlying the base, a gas inlet system for admitting a plasma precursor gas into the chamber, an electrical terminal coupled to the semiconductor window electrode, an inductive antenna adjacent one side of the semiconductor window electrode opposite the base for coupling power into the interior of said chamber through the semiconductor window electrode.

A needle cannula apparatus is provided which includes a needle hub that is mountable to an instrument and has a cantilevered portion extending therefrom. The cantilevered portion has a button member and a hub stop disposed at a distal end thereof. The needle hub defines at least one tab slot having a tab slot end. A shield is movably disposed about the needle hub and defines a shield slot configured for relative slidable movement of the button member therein. The shield slot includes a proximal enlarged slot section configured to engage the hub stop such that proximal movement of the shield is prevented. The shield further includes at least one tab stop that is configured for movement within the at least one tab slot of the needle hub and engagement with the tab slot end such that distal movement of the shield is prevented. The needle cannula hub may include at least one hub slot and the shield includes at least one shield rail. The at least one shield rail sidably engages the at least one hub slot facilitating axial movement of the shield relative to the needle hub. The shield slot may further define a transport enlarged slot section disposed between a distal portion of the shield slot and the proximal enlarged slot section. A method for transport and use of the needle cannula apparatus is disclosed.

The invention discloses a method for authenticating human-face identity based on three-dimensional model reconstruction. In the method for authenticating human-face identity, three-dimensional human-face models are reconstructed according to a photo on an identity card and a real-time video respectively, and a three-dimensional geometrical characteristic matching strategy is used for authenticating human-face identity. The method for authenticating human-face identity comprises the steps of: (1) reconstructing a three-dimensional human-face model according to the photo on the identity card byadopting a non-linear optimization algorithm based on a three-dimensional deformation base; (2) reconstructing a three-dimensional human-face model according to a real-time video by adopting a methodfor recovering a non-rigid body three-dimensional shape from the movement; and (3) authenticating through three-dimensional human-face matching according to the geometrical characteristics. The method for authenticating human-face identity can be used for supporting a user to authenticate by a second-generation identity card and a video of the human-face, greatly improves the contrast accuracy and efficiency, and enables the method for portrait contrast by using a computer to become a feasible technology.

The invention discloses a composite dielectric grating MOSFET based dual-transistor light-sensitive detector. Each of the unit detectors comprises two transistors, wherein the two transistors comprise a photoreceptive transistor and a reading transistor which are used for implementing the photoreceptive function and the reading function respectively, both of the two transistors are formed above a composite dielectric grating MOSFET substrate P-type semiconductor material (1) and are separated through shallow trench isolation (STI), a bottom layer of an insulating dielectric material, a top layer of the insulating dielectric material and a control grid (2) are arranged above the substrate P-type semiconductor material respectively, a photoelectron storage layer (4) is arranged between the two layers of insulating dielectric materials, a source/drain electrode is arranged on the reading transistor to read signals, and the two transistors are connected through the photoelectron storage layer, so that the reading transistor can read photoelectrons which are stored by the photoreceptive transistor in the photoelectron storage layer through sensitization.

Methods and systems are provided for managing passwords. The passwords are maintained in a database stored on a storage device. An interface is provided to a user on a display device to access at least one of the passwords from the database. The interface is generated with a computational device in communication with the storage device and with the display device. Periodic collection through the computational unit of a representation of a display on the display device is prevented.

The invention discloses a unmanned aerial vehicle (UAV) path determination method and apparatus for reconstructing a three-dimensional model, the method comprising the steps of: constructing a three-dimensional point model forming an outline of a captured building; determining a photographing points of a flight path of the UAV around the building so that a camera on the UAV can capture a corresponding point set covering the three-dimensional point model at each photographing point and the overlap ratio of the point sets captured by the camera at adjacent photographing points is greater than an overlap ratio threshold; instructing the UAV to fly along the flight path and instructing the camera to photograph the building at corresponding photographing points. The method can calculate minimum photographing point sets satisfying a three-dimensional reconstruction requirement just by acquiring the height and the two-dimensional orthograph of a three-dimensional reconstructed target, so as to provide guidance for a three-dimensional reconstruction data acquisition process, to ensure that the acquired images meet the three-dimensional reconstruction requirement, to avoid the collection of redundant image information, and to improve the efficiency of the three-dimensional reconstruction process.

The present invention provides methods and apparatuses for accurate noninvasive determination of tissue properties. Some embodiments of the present invention comprise an optical sampler having an illumination subsystem, adapted to communicate light having a first polarization to a tissue surface; a collection subsystem, adapted to collect light having a second polarization communicated from the tissue after interaction with the tissue; wherein the first polarization is different from the second polarization. The difference in the polarizations can discourage collection of light specularly reflected from the tissue surface, and can encourage preferential collection of light that has interacted with a desired depth of penetration or path length distribution in the tissue. The different polarizations can, as examples, be linear polarizations with an angle between, or elliptical polarizations of different handedness.

A combination high visibility safety vest and hydration bladder system includes a vest having a pouch along its back side capable or receiving and holding a bladder portion of the hydration bladder system. The pouch includes raised inserts along its exterior to raise portions of the pouch away from the user's back. The vest also includes a background material made of a daytime-visible fluorescent color and nighttime and light reflective material positioned thereon to increase the visibility of the user to others. The vest includes tear-away straps and seams to increase the safety of the user if the vest is entangled. The hydration bladder system includes a bladder that can be filled with fluid in an insulated pouch. The hydration bladder system provides hydration to the user by way of tubing coupled on one end to the bladder and on the other end to a mouthpiece.

An apparatus has a valve body defining a first passageway, a valve seat, and a flow aperture extending through the valve body and coupled in fluid communication with the first passageway. A valve cover of the apparatus is formed of an elastic material and includes a cover base mounted on the valve body and fixedly secured against movement relative thereto, and a valve portion overlying the valve seat. The valve portion defines a predetermined radial thickness and forms an interference fit with the valve seat. The valve portion and the valve seat define a normally closed, axially-extending valve opening therebetween. The valve portion is movable between a normally closed position with the valve portion engaging the valve seat, and an open position with at least a segment of the valve portion spaced away from the valve seat to connect the valve opening in fluid communication with the flow aperture to thereby allow the passage of fluid from the flow aperture through the valve opening. A hermetically sealed variable-volume storage chamber stores therein multiple portions of the fluid and is connectible in fluid communication with the one-way valve assembly. A pump is coupled between the variable-volume storage chamber and the one-way valve assembly, and is configured to pump discrete portions of fluid from the variable-volume storage chamber, through the flow aperture, and through the valve opening to dispense the portions of fluid through the valve assembly.

A photodiode is provided by the invention, including an n-type active region and a p-type active region. A first one of the n-type and p-type active regions is disposed in a semiconductor substrate at a first substrate surface. A second one of the n-type and p-type active regions includes a high-field zone disposed beneath the first one of the active regions at a first depth in the substrate, a mid-field zone disposed laterally outward of the first active region at a second depth in the substrate greater than the first depth, and a step zone connecting the high-field zone and the mid-field zone in the substrate.

A temporary protective cover for an electrical box having an open front end includes in one embodiment a plate shaped to enclose the open front end and a pair of wings formed onto the plate for securing the cover onto the electrical box. A line of weakness extends across the rear surface of the plate from the right side edge to the left side edge. A plurality of pins are formed onto the rear surface of the plate and serve to limit longitudinal and lateral movement of the cover when mounted onto the electrical box. The pair of wings are spaced adequately in from the left and right side edges of the plate and extend rearwardly from the rear surface of the plate at an angle away from one another. Each wing is shaped to include a flexible leg and an enlarged foot, the foot including a tapered guiding surface and a substantially flat engagement surface.

A cutting element for a drag-type earth-boring drill bit includes a cutting table with a face including a region that is configured cut into a formation at an effective positive back rake angle and to direct formation cuttings, or chips, that have been cut from the earth formation toward the hydraulics of the drill bit. Drill bits that include one or more cutting elements that have been configured in this manner are also disclosed. Such a drill bit may also include a wear pad for limiting the depth to which a cutting element penetrates a surface of a bore hole in an earth formation. Such a wear pad may have a substantially constant thickness. Methods for removing material from earth formations are also disclosed.

A method for storing fluid and dispensing multiple portions of the stored fluid uses a container defining a variable-volume storage chamber; a dispensing valve including a valve inlet coupled in fluid communication with the variable-volume storage chamber, and an elastic valve member in fluid communication with the valve inlet and defining a normally-closed valve opening; a manually engageable actuator; and a pump including a compressible member defining a compression chamber coupled in fluid communication with the variable-volume storage chamber. Multiple portions of the stored fluid are hermetically sealed in the variable-volume storage chamber. The actuator is manually engageable and movable between (i) a first position wherein the compression chamber defines a first volume, and (ii) a second position wherein the compression chamber defines a second volume less than the first volume. In the second position the fluid in the compression chamber exceeds a valve opening pressure and, in turn, moves the elastic valve member between (i) a normally closed position hermetically sealing the one-way valve and variable-volume storage chamber with respect to ambient atmosphere, and (ii) an open position permitting fluid flow through the valve opening.

A hole cutter has a substantially cylindrical blade body defining a blade body circumference, a cutting edge formed on one end of the blade body, and an axially-elongated slot formed through the substantially cylindrical blade body. The axially-elongated slot is configured to receive chips flowing from the cutting edge within the interior of the blade body and (i) into the slot, and/or (ii) through the slot, to prevent the collection of such chips within the interior of the blade body and/or at an interface between the blade body and work piece. The axially-elongated slot defines a first end adjacent to the cutting edge, a second end axially spaced further from the cutting edge, and a slot area. The hole cutter further defines a total slot area to blade body circumference ratio within the range of about 0.1 to about 0.3 depending on the size of the hole cutter.

The present invention relates to an automatic stirring system that is selectively mounted to a cooking vessel. The cooking vessel includes a handle, an opening for receiving food items, and a lid. The automatic stirring system includes a housing mounted to the handle, a ring gear rotatably mounted to the cooking vessel, a drive assembly for rotating the ring gear, and at least one stirring vane attached to the ring gear. In various other embodiments, the automatic stirring system includes at least one forward swept stirring vane, at least one aperture in the stirring vane, a variable speed control unit, and a component orientation that provides substantially unimpeded access to the opening of the cooking vessel.

The subject matter discloses a device for measuring biological properties of an examined tissue, the device comprising at least one light source configured and operable to illuminate the examined tissue with light radiation of one or more wavelengths at a certain light illumination direction; and a light detector located at a same side of said examined tissue and configured and operable to receive light components of said one or more wavelengths reflected from the examined tissue in response to the illuminated light radiation at a certain light detection direction, and to generate measurement data indicative thereof; at least one of said light illumination direction and detection direction is positioned at an angle of at least 2⁰ relative to an imaginary line perpendicular to the examined tissue or form an angle of at least 2⁰ between the light illumination direction and detection direction.

A foot-operated door opener includes an elongate housing having openings at the upper and lower ends thereof. The housing is mounted to and hangs from a rotatable doorknob or door handle. An elongate actuator extends through the housing. An upper end of the actuator is grippably engaged with the door handle or doorknob and the lower end of the actuator carries a foot pedal. The lower end of the housing carries a hook that engages the lower edge of the door. The foot pedal is depressed to pull the actuator downwardly through the housing. This rotates the doorknob or door handle to open the door. The pedal is then pulled rearwardly or pushed forwardly by the users foot, as required, so that the housing and hook pivot the door open. The user may then exit the door without touching the handle.

A detection system of high sensitivity DC local discharge on large-capacity high voltage power device is prepared for providing high voltage DC voltage to balance detection impedance circuit by DC high voltage source, picking up local discharge signal of detected sample by balance detection impedance circuit, sending local discharge signal to differential amplification filtering circuit to carry out differential amplification filtering treatment than sending treated signal to data collection and analysis unit for obtaining detection and analysis result of local discharge signal.