229results about How to "Reduce exposure" patented technology

A system, apparatus, and method for reducing exposure to electromagnetic radiation by transferring at least one communication between a first interface, proximate a wireless device capable of emitting radio frequency electromagnetic radiation, and a second interface. A first converter to receive the communication and in response to generate an optical communication, the first converter coupled with one of the first interface and second interface. A second converter to receive the optical communication and in response to generate a second communication, the second converter coupled with one of the first interface and the second interface, wherein the first and second converters are coupled with different interfaces. An optical coupling between the first and second converters to communicate the optical communication and to reduce transferred radiation therebetween. A method of using the system for reducing exposure to electromagnetic radiation.

Systems and methods process blood and blood components for subsequent pathogen inactivation processes prior to long term storage and/or transfusion.

A welding torch comprising: a main cylindrical conductive assembly with a front diffuser section having a plurality of circumferentially spaced shielding gas diffuser orifices for directing shielding gas radially outwardly from the assembly, a forwardly facing threaded bore extending through a cylindrical support nose and an elongated wire passageway coaxial with the threaded bore and opening at the rear end of the assembly. An insulated, cylindrical protective sleeve fitted around both the support nose and the diffuser orifices where the sleeve has a front clearance opening and circumferentially spaced openings communicated with the diffuser orifices and a contact tip having a central wire guide bore with a diameter only slightly larger than the diameter of the welding wire, a threaded rear body, a front extension passing through the front clearance opening and a radially extending flange between the rear body and the front extension to hold the protective sleeve around the nose when the body is screwed into the threaded bore of the main assembly.

A coating material dispensing device includes a port adapted to be coupled to a source of coating material, an actuator for controlling a flow of compressed gas through the dispensing device, and a valve coupled to the actuator to be controlled by the actuator. The valve includes a valve housing, a valve closure member, and a valve seat. The valve closure member is movable in the housing under the control of the actuator between a closed position against the valve seat and an open position away from the valve seat. An inlet port is provided into the housing. The inlet port is oriented on a first side of the valve seat. The inlet port is adapted to be coupled to a source of the compressed gas. An outlet port is provided on the second side of the valve seat. The valve closure member includes a first surface which faces generally in a first direction of movement of the valve closure member away from the valve seat and a second surface which faces generally in a second direction of movement of the valve closure member toward the valve seat.

Laser pyrolysis reactor designs and corresponding reactant inlet nozzles are described to provide desirable particle quenching that is particularly suitable for the synthesis of elemental silicon particles. In particular, the nozzles can have a design to encourage nucleation and quenching with inert gas based on a significant flow of inert gas surrounding the reactant precursor flow and with a large inert entrainment flow effectively surrounding the reactant precursor and quench gas flows. Improved silicon nanoparticle inks are described that has silicon nanoparticles without any surface modification with organic compounds. The silicon ink properties can be engineered for particular printing applications, such as inkjet printing, gravure printing or screen printing. Appropriate processing methods are described to provide flexibility for ink designs without surface modifying the silicon nanoparticles.

A wireless wastewater system monitoring apparatus generally comprising a processor/transceiver unit, housed within a synthetic protective enclosure formed outside of the wastewater system, and a fluid level sensor configured to send an overflow signal to the processor/transceiver unit when an overflow condition in the wastewater system is detected. The processor/transceiver unit is configured with at least one microprocessor wired between the sensor and a power supply and with a transceiver so as to detect the overflow signal from the sensor and, in response, transmit a wireless alarm signal. The processor/transceiver unit is further configured such that only a portion of its circuitry is constantly powered so as to continuously monitor the sensor, while the remainder of its circuitry, including the transceiver, is only powered and a wireless signal sent from the unit when an overflow condition is detected or a routine status-check is being conducted.

A planter is provided with onboard seed treatment for treating seeds on the go during row-crop planting of an agricultural field. The seed treatment system of the planter allows for selective planting of specific zones of a field with treated seed, which may include planting different zones of the field with seeds having different treatments. The planter may store untreated seed in bulk and include a seed treatment system that selectively and precisely treat the untreated seeds during treatment events by way of an injection or spray nozzle system that applies liquid treatment to the seeds traveling along a tightly defined travel path, such as within pockets of a belt that carries the seeds through a seed tube.

Systems (10, 110, 1010, 1110) for identifying landmarks (31, 131, 1028, 1128) on orthopedic implants (30, 130, 1024, 1124) are disclosed. The systems (10, 110, 1010, 1110) include a field generator (16, 116, 1016, 1116) for generating a magnetic field and an orthopedic implant (30, 130, 1024, 1124) located within the magnetic field. The implant (30, 130, 1024, 1124) includes at least one landmark (31, 131, 1028, 1128), an optional removable probe (1029, 1129) and a first magnetic sensor (32, 132, 1026, 1126). The systems (10, 110, 1010, 1110) further include a landmark identifier (18, 118, 1016, 1116) with an optional second magnetic sensor (20, 120, 1020, 1120) and a processor (12, 112, 1012, 1112) for comparing sensor data from the first sensor (32, 132, 1026,1126) and second sensor (20, 120, 1020, 1120) or data from the first sensor (32, 132, 1026,1126) and landmark identifier (18, 118, 1016, 1116) using the set distance to calculate the position of the landmark identifier (18, 118, 1016, 1116) relative to the at least one landmark (31, 131, 1028,1128). The disclosed systems (10, 110, 1010, 1110) allow for blind targeting of one or more landmarks (31, 131, 1028, 1128).

Method for making a liquid foam from graphene. The method includes preparing an aqueous dispersion of graphene oxide and adding a water miscible compound to the aqueous dispersion to produce a mixture including a modified form of graphene oxide. A second immiscible fluid (a gas or a liquid) with or without a surfactant are added to the mixture and agitated to form a fluid/water composite wherein the modified form of graphene oxide aggregates at the interfaces between the fluid and water to form either a closed or open cell foam. The modified form of graphene oxide is the foaming agent.

A method for a computer system includes receiving a facsimile including a digitized transmission page including an optical representation of the electronic destination address encoded in a facsimile format, determining the electronic destination address from the optical representation of the electronic destination address, combining the transmission page with a graphics template to form a composite document, formatting the composite document into a second format, determining additional service provider data in response to the facsimile, and transmitting the additional service provider data and the composite document in the second format to the electronic destination address.

The invention discloses a dope-transferring method for reducing the sheet resistance of graphene. According to the method, a graphene film on a transfer film is doped with a doping reagent, the doped graphene film is transferred to a target substrate, and at least two graphene films are transferred by repeating the steps. Graphene on the transfer film can also be undoped, or different doping reagents can be used for multiple times of transferring in different permutation and combination sequences. By means of the method, a large-area low-sheet-resistance graphene material can be obtained conveniently and quickly, the obtained material is high in conductivity and stability, and meanwhile, sheet resistance reduction caused after dope-transferring of graphene can be effectively reduced or even avoided.

Various embodiments provide a catheter positioning device with components for controlling actuators of the catheter in multiple axes. A catheter may be attached to a sled member by a modular plate with one or more actuator interfaces that may couple with the actuators of a catheter handle. One or more motors or drives in the sled member may move the actuator interfaces of the modular plate to control one or more actuators on the catheter in different axes. In various embodiments the sled member may have a clam shell design in which two or more sides of the sled member close around the catheter handle. In further embodiments, the sled member may include adjustable faces that can fit different types of modular plates and thereby control actuators on different types of the catheter.

A system and method for imaging a subject includes a clock that generates a clock signal and a radiation source that directs photons through the subject in response to the clock signal. A detector system is included that detects the photons and a memory module records a time of detection of the photons by the detector system with respect to the clock signal. The system includes a processor that calculates a time of flight (TOF) of the photons from the radiation source to the detector system and compares the TOF to a reference TOF to determine a delay in the TOF attributable to the photons passing trough the subject.

Triclopyr butoxyethyl ester compositions with a dearomatized aliphatic solvent or a vegetable oil ester as a carrier provide enhanced control of woody vegetation in foliar applications.

The invention relates to a polyamine slow-breaking quick-setting asphalt emulsifier and a preparation method and an application thereof. The emulsifier is made through the method as follows: dripping formaldehyde into polyethylene polyamine, and the proportion (mole ratio) of the polyethylene polyamine to the formaldehyde is 1:(0.25 to 4); allowing reacting for 0.5 to 2 hours at room temperature, and then heating to 110 DEG C; allowing reacting for two hours, and heating to 160 to 200 DEG C; allowing reacting for 1 to 3.5 hours, and then cooling to 100 to 110 DEG C, so as to obtain an intermediate after decompressing and dehydrating; adding organic acid by the proportion (mole ratio) of the polyethylene polyamine to the organic acid of (0.5 to 4):1, using dimethylbenzene as a water-carrying agent, and heating the system to 160 to 200 DEG. C; after reaction for 5 hours, cooling to 70 to 80 DEG C, and carrying out reduced pressure distillation, so as to obtain the polyamine slow-breaking quick-setting asphalt emulsifier. Emulsified asphalt prepared through the emulsifier obtained by the invention is uniform and stable, and is proven to be a slow-breaking type through a demulsification test and to be a quick-setting type through an experiment of mixation with quartz sand. The emulsifier can satisfy the requirement of rapid traffic opening.

The invention discloses an automatic exposure method, which is used for realizing the automatic exposure of an image so as to improve the display effect of the image. The method includes: judging whether the brightness value of the image belongs to a preset brightness interval; when the brightness value of the image belongs to the brightness interval, judging whether there is an overexposed area in the image; when there is an overexposed area, adjusting the automatic exposure parameter value, to reduce the exposure of the image. The invention also discloses a device for realizing the method.

An eye protector includes a UV protective film and has adhesive located at the ends of the major axis of the film. The film is sufficiently flexible that it can be shaped into a cane with an oblong base, whereby when the device is applied to a user's eye with its major axis aligned with the major axis of the eye, the adhesive is positioned such that it holds the device to the user's eye at opposite edges of the eye keeping the adhesive from interfering with the user's eyelid, which is particularly troublesome for women using eye-shadow. Methods for manufacturing and merchandising the eye protector are also disclosed.

The invention relates to a digital camera fast focusing method using a step motor to control an image acquisition unit on optimum focusing viewfind position, which comprises following steps: a), setting step motor to control image acquisition unit on viewfind position with at least a first, a second and a third viewfind point; b) viewfinding on viewfind position to calculate resolution ratio and generate at least a first, a second and a third resolution ratio; c) comparing these resolution ratios to determine the region of optimum focusing viewfind position; d) calculating optimum focusing viewfind position according to viewfind position.

The invention provides a flat material conveying method and its device capable of miniaturizing a holder part such as a finger and capable of accurately conveying flat conveyed materials by restricting bend of the flat conveyed material due to dead wight thereof, while restricting a contact with the flat conveyed material. The flat conveyed material 17 is held by a holding part formed of a pad 18 and a suction part 19. The pad 18 abuts on a lower surface of the flat conveyed material 17 to support it. The suction part 19 is arranged between the pad 18, and height of the pad 18 is set low in the suction condition to vacuum-suck the lower surface of the flat conveyed material 17. The flat conveyed material 17 is thereby forcibly bent to reduce the amount of bend in a direction along an angle and/or a valley of the bend.

A method for scanning and processing computed radiography x-ray images in order to maximize the usage of cassette options. The storage phosphor radiography imaging method of the invention employs a cassette comprising a storage phosphor screen adapted to be exposed to x-rays to store a latent x-ray image in the screen and read using a reader. The method includes the steps of: associating cassette information with the cassette using an identification member affixed to the cassette or storage phosphor screen, the cassette information comprising information relating to characteristics of the cassette relevant to the reading of the screen by the reader; prior to reading the exposed storage phosphor screen to generate a digital image signal, scanning the identification member to obtain the cassette information; and reading the exposed storage phosphor screen in accordance with the cassette information to generate the digital image signal.

The exoskeletal dynamic load bearing shock absorbing knee brace makes use of the energy absorbing characteristics of specifically designed industrial shock absorbers which are held precisely in place by an articulated dynamic exoskeletal structure that is to be secured to the lower limbs of the individual with the injured knee. The exoskeletal structure is designed using the principles of the overcenter linkage to translate and transfer to the shock absorbers a representative fraction of the normal and extra normal ambulatory movements of the lower limbs of the user which makes possible for these shock absorbers to absorb a corresponding amount of energy and provide an alternate load bearing structure parallel to the knees thus introducing a desirable degree of protection for the injured knee.

The invention discloses an automatic detection instrument for stool specimen, comprising an automatic controller; a dilution device used for adding quantitative diluent into the stool specimen; a stirring and blending device used for stirring and blending the diluted stool specimen; a detecting unit used for detecting the stool specimen, and an aspirating and cleaning device connected with the detecting unit through pipelines and used for transmitting the stool specimen to the detecting unit and cleaning the detecting unit and the connecting pipelines after detection. The detection instrument of the invention can automatically carry out quantitative dilution, physical microscopic examination and partial chemical detection for specimen completely in comparatively sealed pipelines, thereby reducing the link of air contact, reducing the contamination for the environment and laboratory, and improving the work efficiency by using computer software for automatic control.

The invention relates to the technical field of medicine. The traditional tumor treatment methods, such as radiation treatment, chemical treatment, biotic factor treatment, and the like are lack of targeting, and the immunotoxin treatment has the problem of sensibility of the nonspecific toxicity and the immunogenicity of toxic proteins, etc. The humanized McAb Trastuzumab-modified toxin protein-coated PEG immune liposome has the structure: an antibody is connected to the surface of lipidosome and can be combined with HER 2 antigen on the surface of a tumor cell so as to generate endocytosis; and the toxin proteins are coated in the lipidosome, and the sensibility of the nonspecific toxicity and the immunogenicity of the toxic proteins can be reduced. The invention also provides the preparation and the application of the lipidosome. Proved by the result of the experiment of killing the tumor cells in vitro, the biological targeting is favorable, and the function of killing the targeted tumor cells in vitro is outstanding; and the lipidosome has low toxic effect on normal cells.

A method and system reduce radiation exposure by panning and zooming a first image of a patient acquired by an x-ray imaging system rather than using continuous radiation fluoroscopy. A first image of a region of interest is initially acquired. Subsequently, the patient may be repositioned with respect to the imaging system or a component of the imaging system may be repositioned with respect to the patient. The first image may be automatically panned on a display in response to the repositioning. A collimator may be adjusted to select a coverage area of the collimator.

The invention discloses a high-power lithium-ion positive electrode material and a preparation method thereof. The high-power lithium-ion positive electrode material is prepared by taking high-energy-density nickelic material as an inner core and taking a stable nickel-cobalt-aluminum-carbon layer as a shell. By virtue of the method for preparing a lithium-ion nickel series positive electrode material, the volumetric specific energy of the material is improved, the charging and discharging properties of the material are stabilized, and the effects of improving the capacity of the inner core and protecting the shell are highlighted in an optimal manner.

The invention discloses a processing method for flaxseed oil. The processing method comprises the following steps of: (1) squeezing flaxseeds into crude oil; (2) carrying out dephosphorizing treatment on the crude oil; (3) degumming and dewatering to obtain finished oil; and (4) dewaxing the finished oil. The processing method has the advantages that the decoloring and deacidifying are not needed, and the addition of chemical decoloring agent is avoided; the dewaxing process is simple to operate, the crystallization time is short, the industrialization production is easy, the dewaxed faxseed oil is clear and bright in color, no deposition exists during storage, the quality of the oil products can be promoted, the flaxseed oil is easily digested and absorbed after being eaten, and the economic benefits of the product can be increased; and the method is simple in technique, the refining time is shortened, and the production efficiency is improved.

The invention discloses a method for synthesizing a lithium ion battery positive electrode material. The method comprises the following steps: dissolving lithium nitrate, lanthanum nitrate and titanium tetraisopropanolate in isopropyl alcohol to prepare an isopropyl alcohol solution; adding spinel-type lithium manganate into the isopropyl alcohol solution for stirring, and carrying out 1-3 hours' heat treatment at 300-400 DEG C to prepare Li0.35La0.55TiO3 coated spinel-type lithium manganate. According to the technical scheme, the method has the advantages that nanocrystallization of a coating layer can be effectively realized, and the coating thickness is uniform and controllable; through the coating layer with a nano-sized surface, the contact between LiMn2O4 and an electrolyte can be effectively reduced, side reactions triggered in a charge-discharge process of a lithium ion battery can be reduced, the stability of the lithium ion battery can be improved, and the high-temperature cycle life of the lithium ion battery can be prolonged.

The invention discloses a phosgenation reactor and a method for preparing an isocyanate monomer by using the phosgenation reactor. The phosgenation reactor comprises an inner material inlet pipe, an outer material inlet pipe, a mechanical stirring rotation shaft, a rotation area and a kettle body, wherein the rotation area comprises a support structure, a rotation area filler block, an upper material outlet device and a lower material outlet device, the inner material inlet pipe and the outer material inlet pipe are coaxially arranged from inside to outside, the upper material outlet device and the lower material outlet device are arranged in parallel, are connected through the support structure, and are respectively communicated to the outer material inlet pipe and the inner material inlet pipe, the rotation area filler block is filled between the upper material outlet device and the lower material outlet device, the upper material outlet device is connected to the mechanical stirringrotation shaft, and the kettle body is provided with a gas phase material outlet, a liquid phase material outlet, a gas phase material inlet and a liquid phase material inlet. According to the present invention, by pre-treating the hydrochloride solution in the reactor, the salt forming concentration and the quality of the hydrochloride solution are improved while the rapid removal of hydrogen chloride gas during the phosgenation is achieved, such that the generation of chlorination by-products is effectively reduced, and the product separation difficulty is reduced.

The invention belongs to the field of metallurgy, and particularly relates to a preparation method of high-quality vanadium-aluminum alloy. The preparation method comprises the following steps: by an electrothermal reduction-two-step refining method, using V2O3 with the purity of 99.9%, Al with the purity of 99.70% and CaO with the purity of 97.0% as raw materials, uniformly mixing, taking a part of the raw materials, and mixing with a heating agent as a base material; igniting the base material to form a molten pool, starting an open arc for smelting, and adding the remaining raw materials in batches; in the later reacting stage, performing blowing refining on the alloy and molten slag; after completion of smelting, deslagging, and casting to obtain the vanadium-aluminum alloy. According to the preparation method, high-purity V2O3 is used as a vanadium source, so that compared with use of V2O5, the using amount of a reducing agent can be significantly reduced and introduction of impurities into the raw materials is reduced; an external heat source can prolong the heat-preserving time so as to promote separation of the slag and the alloy; the open arc is started for smelting by virtue of the molten slag, so that the carbon content of the alloy can be reduced; in the later smelting stage, the recycling rate is increased and the impurity content is reduced by refining the slag and the alloy. The final impurity content meets a standard of the AlV50 vanadium-aluminum alloy of the German GfE company.

The invention provides an indium oxide or tin-doped indium oxide-coated positive electrode material used for a lithium battery, a preparation method of the positive electrode material, a positive electrode comprising the positive electrode material, and the lithium battery comprising the positive electrode. Indium oxide or tin-doped indium oxide forms a compact and uniform coating layer on the surface of the positive electrode material; and based on 100wt% of the positive electrode material used for the lithium battery, indium oxide or tin-doped indium oxide accounts for 0.5-5wt%.