106results about How to "Increase radiation dose" patented technology

A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for cooling air, and a heating mode in which the interior heat exchanger is operated as a radiator for heating air. In the vehicle air conditioner, an accumulator, for separating gas refrigerant and liquid refrigerant from each other and for storing the separated liquid refrigerant therein, is disposed between an outlet of the interior heat exchanger and a suction port of a compressor. Further, the accumulator includes a heating device for heating the liquid refrigerant stored in the accumulator in the heating mode. Therefore, heating performance for heating air in heating mode can be efficiently improved.

The multiple picture frames decollating system belongs to the field of video digital image treating technology, and is especially multiple picture frame great screen TV wall decollating display system. The present invention consists of two parts, including multiple picture frame decollator and large screen display equipment. The multiple picture frame decollator consists of a computer with video and audio treating card, operation system and control software, a control monitor and sound box. The large screen display equipment is large screen liquid crystal screen, plasma screen or large screen rear projecting TV with VGA / DVI interface. The present invention may be used in multiple picture frame monitoring in different fields. The present invention may be controlled in different modes.

A ratio (Nc / Lc), in a condenser core portion, of the number of louvers to a width of a condenser cooling fin, and a ratio (Nr / Lr), in a radiator core portion, of the number of louvers to a width of a radiator cooling fin satisfy that the ratio in one core portion, out of the condenser and the radiator core portions, a required radiation amount of which is larger than that of the other core portion is larger than the ratio in the other core portion. Thus, in the core portion having a small required radiation amount, the number of louvers relative to the width of the cooling fin is small thereby decreasing the heat transfer ratio. However, by this, the air flow resistance in this core portion decreases thereby increasing an air flow amount. Thus, the radiation amount of the core portion of which required radiation amount is large increases.

A nuclear medical drug for localize radiotheraphy of a tumor and methods for its preparation. The drug includes a radioactive ceramic or glass particle having biocompatiblity. Ceramic or glass particles prepared by traditional processes become radioactive particles with pure beta -particle-emitting radionuclides after being irradiated with an appropriate flux of neutrons. The radioactive particle with suitable particle size can then be dispersed into a contrast medium for injection or can be implanted by operation.

A system and method to manufacturing a device provide a substrate and perform at least one exposure step. Each exposure step projects a patterned beam of radiation, which was patterned using an individually controllable elements, onto a target portion of the substrate. The projected patterned beam includes a plurality of pixels. Each exposure step also: (a) ordinarily controls the elements, such that each pixel delivers a radiation dose no greater than a predetermined normal maximum dose to the target portion in the exposure step; and (b) exceptionally controls the elements, such that at least one selected pixel delivers an increased radiation dose, greater than the normal maximum dose. The increased dose may be delivered to compensate for the effect of a defective element at a known position in the array on a pixel adjacent a selected pixel. Alternatively, it may compensate for underexposure of the target portion at the location of a selected pixel resulting from exposure of that location to a pixel affected by a known defective element in another exposure step. The invention uses doses up to the predetermined normal maximum for normal printing, but reserves at least one increased dose for compensation purposes. Accordingly, even when a dead black pixel falls in the middle of a group of surrounding white pixels it can be compensated for by increasing the radiation dose delivered by one or more of those neighboring white pixels, above the normal fully white value.

The invention relates to a heat preservation and insulation flooring. The flooring is made up of floor board, heat preservation layer, leveling layer, and facing layer. Its feature is that: the heating pipe and phase change pipe is set on the heat preservation layer. The invention supplies a new-type heat preservation and insulation flooring the heating pipe would be used for solar hot water, ground heat or other hot water heating, the phase change pipe would be used to store heat and adjust the room temperature.

The invention relates to a method for reconstructing a 3D presentation of a hollow organ based on two-dimensional catheter images, comprising: detecting at least two fluoroscopy images at two different angles of the hollow organ; determining a start position of the catheter from the fluoroscopy images in a three-dimensional model of the hollow organ or a catheter guide; determining a probable withdrawal path of the catheter based on the three-dimensional model; withdrawing the catheter while recording the catheter images and assigning a withdrawal length to each catheter image; determining the deviation of the position of the catheter from a central path running through the middle of the hollow organ and the orientation of the catheter for each catheter image based on the withdrawal path and the withdrawal length; and reconstructing the 3D presentation from the two-dimensional catheter images as well as the deviation of the position of the catheter.

The invention relates to a compact, comfortably wearable system (1) comprising a plaster (2) and a radiation device (3) in a stacked position on top of the plaster. The radiation device (3) comprises a light-guide (9) which is optically connected and edge-lit by a radiation source (10). The radiation source (10) is electrically connected to an energy source (11), which is stacked on top of the light-guide 9. A reflector (12) is provided to reflect radiation in the direction of a target area (6). Due to total internal reflection (TIR) inside the light-guide (9) and multiple reflections a spreading is obtained of each of the radiation rays (15) generated by the radiation source (10), which results in the target area to be evenly irradiated.

A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for cooling air, and a heating mode in which the interior heat exchanger is operated as a radiator for heating air. In the vehicle air conditioner, an accumulator, for separating gas refrigerant and liquid refrigerant from each other and for storing the separated liquid refrigerant therein, is disposed between an outlet of the interior heat exchanger and a suction port of a compressor. Further, the accumulator includes a heating device for heating the liquid refrigerant stored in the accumulator in the heating mode. Therefore, heating performance for heating air in heating mode can be efficiently improved.

The invention discloses a composite component of meridian tyre cord fabric layer and air barrier and a preparation technology. Base material rubber, an aging-proof system, a reinforcing system, a vulcanization system and a radiosensitizer are mixed at a ratio to form a mixture; the rubber mixture is mixed to smelt in an internal mixer to be prepared into a tyre body cord fabric layer component and a lining air barrier component respectively according to the production technology of the tyre body cord fabric layer and the lining air barrier component; then the tyre body cord fabric layer component and the lining air barrier component are compounded into an integral composite component on a compound machine; an electron accelcrator is used for radiating the composite component; under the condition of limited-oxygen radiation, radiation prevulcanization is carried on the composite component of the tyre cord fabric layer and the lining air barrier. The composite component of the tyre cord fabric layer and the air barrier, which is radiated by the invention, has high Green strength, stable structure size and performance, saves raw material, has small radiation dose and high production efficiency and is favourable for environment protection.

An integrated biosensing device detects emissions from a sample when illuminated. A photo detector (20) is adjacent a site for retaining the sample (40) or receiving excitation radiation for impingement on the sample (40). A reflector (10) deflects the illumination onto the sample site and substantially guides the excitation radiation away from the photo detector. By providing a reflector, a ratio of desired detection of emissions to unwanted detection of the illumination light can be improved. This can be achieved by a reduction in an amount of the illumination reaching the photo detector, and / or by an increase in the amount of illumination of the sample and thus in the amount of emissions reaching the detector. This can be achieved more cost effectively than by using a filter. The illumination can be from above or below if the substrate is transparent.

The invention relates to a medical and industrial X-ray real-time stereoscopic imaging device, and belongs to the technical field of ray imaging equipment. The device comprises an X-ray source, an X-ray image sensor, a computer, a stereoscopic display and an X-ray machine stand, wherein the X-ray source has double viewing angles and can rapidly alternately emits X rays of double viewing angles; the X-ray image sensor is used for receiving X-ray images and realizing digitization; the computer can synchronously acquire images of left and right eyes and perform stereoscopic processing; the stereoscopic display is used for observing stereoscopic images; and the X-ray machine stand makes the X-ray source and the X-ray image sensor move or rotate in certain distance. The imaging device can display a three-dimensional perspective image of a human body or an object in real time during operation and perform three-dimensional positioning on organs and surgical instruments through a three-dimensional coordinate and a three-dimensional mouse, and also can display an X-ray three-dimensional image and the three-dimensional positioning of inner components of a tested object in real time in nondestructive testing or explosion-proof security. The imaging device has the advantages of high real-time, low cost and low exposure dose.

The invention relates to technique for improving an electric heating element, in particular to nano far infrared negative ion carbon crystal conductive paper and a method for making the same. The conductive paper resolves the problems of the uneven heat generation, the existence of heat spot and the excessive temperature difference existing in prior electric heating products and is used for electric heating elements for anti-static electricity and making of heating electric hot plates. The conductive paper comprises the following components in percentage by weight: 70 to 96 percent of paper pulp, 2 to 20 percent of nano carbon fiber, 1 to 5 percent of nano far infrared negative ion powder and 1 to 5 percent of dispersing agent. In the invention, by using paper pulp, nano carbon fiber, nano far infrared negative ion powder and dispersing agent as materials and undergoing steps of pulping, pulp beating, pulp mixing, papermaking, drying and scrolling, etc., the conductive paper is made; in the process of pulp beating, the pulp mixing step is made; the pulp mixing step is as follows: nano carbon fiber and dispersing agent and nano far infrared negative ion powder are evenly added in the paper pulp. The invention possesses of functions of the emission of far infrared rays and the release of negative ions at the same time and can effectively and completely release electric charges, thereby having effects of purification and disinfection and making human bodies healthier.

The invention discloses an eyeball tumor area real-time positioning method based on motion features of an eyeball. The eyeball tumor area real-time positioning method comprises the following steps of extracting an eye anterior-segment tissue information, conducting calibration and three-dimensional reconstruction on the eye anterior-segment tissue information to obtain shifting parameters before and after eyeball motion, establishing a three-dimensional eyeball model based on a CT image, and establishing the coordinate relation between an eye anterior segment feature structure and an intraocular tumor position. According to the eyeball tumor area real-time positioning method, an anterior-segment image obtained through real-time OCT tracking is utilized, and then the tumor is accurately positioned in a radiation area through processing technologies including image reconstruction, registering and the like. The invention further discloses an imaging device for extracting the eye anterior-segment tissue information. The imaging device for extracting the eye anterior-segment tissue information comprises an OCT light source, a beam splitter, a sample arm, a reference arm and a feedback device. A real-time positioning tracking system provides in-vitro noninvasive positioning and can achieve the purposes of improving positioning accuracy and radiation dose and local control rate of the ocular tumor, decreasing surrounding normal radiation dose and injury and the like.

A product comprises a sheet, which is transparent to visible radiation, and a coding pattern, which comprises scattering dots arranged on the sheet to code information, the scattering dots being arranged to diffusely scatter radiation incident thereon, the coding pattern further comprising reflecting dots arranged on the sheet in correspondence with the scattering dots, the reflecting dots being arranged to specularly reflect radiation incident thereon.

In the infrared radiation element (A), a heat insulating layer 2, which has sufficiently smaller thermal conductivity than a semiconductor substrate 1, is formed on a surface in the thickness direction of the semiconductor substrate 1, and a heating layer 3, which is in the form of a lamina (plane) and has larger thermal conductivity and larger electrical conductivity than the heat insulating layer 2, is formed on the heat insulating layer 2, and a pair of pads 4 for energization are formed on the heating layer 3. The semiconductor substrate 1 is made of a silicon substrate. The heat insulating layer 2 and the heating layer 3 are formed by porous silicon layers having different porosities from each other, and the heating layer 3 has smaller porosity than the heat insulating layer 2. By using the infrared radiation element (A) as an infrared radiation source of a gas sensor, it becomes possible to extend a life of the infrared radiation source.

The invention relates to a surface-cooling non-invasive radiation whole-body thermocuring method, in particular to a non-invasive radiation whole-body thermocuring method by introducing a large amount of radiation power into the deep issues of human bodies quickly through surface-cooling technology to prevent surfaces from being burned and increase radiation power. In the method, a radiation heating system is combined with a surface-cooling system, so that low-attenuation electromagnetic radiation on the surfaces is taken away, and high dose of infrared, microwaves, radio frequency and energyradiation of electromagnetic wave probes of each frequency range are radiated to the deep parts of the human bodies for heating to realize the non-invasive radiation whole-body thermocuring. The method breaks through the technical route that improvement is performed through aspects of a heating mode, heat source control and the like in the prior art technically, introduces ultralow-temperature cooling for the first time to offset the local radiation of the surfaces and prevent overheating and empyrosis; simultaneously, the non-invasive radiation whole-body thermocuring is performed by utilizing a deep radiation heating source so as to improve power which can be accepted by organisms and prevent the surfaces from being burned substantially.

The invention belongs to the field of functional materials and electric heating elements and particularly relates to a graphene far-infrared heating negative-ion light wave plate and a manufacturing method thereof. The graphene far-infrared heating negative-ion light wave plate comprises a front-side plate, a heating plate, a heat insulation layer, a reflective layer and a rear cover plate which are sequentially arranged in the up-and-down order, wherein the heating plate is provided with glass fiber cloth, a resin adhesive layer and a graphene nano far-infrared negative-ion composite fiber conductive heating film, and the resin adhesive layer and the glass fiber cloth are sequentially arranged at the upper part and the lower part of the graphene nano far-infrared negative-ion composite fiber conductive heating film. As far-infrared transmitted waves and crop-absorbed sunlight have the consistent nutrition wavelength for photosynthesis, photosynthesis of crops can be promoted, the germination rate and the emergence rate of the crops are improved, the growth cycle is shortened, accordingly, maturation of the crops is quickened, and the growth environment can be regulated and controlled and the temperature and the humidity can be controlled according to different growth cycles of the crops.

The invention belongs to the field of a heating plate made from an electric heating material, and particularly relates to a graphene nano far infrared negative ion composite fiber conductive heating plate and a production process. The conductive heating plate comprises an impregnated glass fiber fabric layer, a heating core and an impregnated glass fiber fabric layer; the impregnated glass fiber fabric layer and the impregnated glass fiber fabric layer are respectively arranged at the top and the bottom of the heating core; and the heating core is a graphene nano far infrared negative ion composite fiber conductive heating film. In order to save energy better and play the requirement of the conductive heating plate for expanding functions, according to the invention, graphene advanced nowadays is used as a raw material; and as a heating body, the graphene material is a recognized material with the best electrical conductivity and thermal conductivity, is superior to electric heating materials such as carbon fibers, carbon nanotubes and the like, and is higher in electric-thermal conversion rate and stronger in far infrared radiation.

Certain example embodiments of this invention relate to coated articles that include anti-reflective (AR) coatings produced from colloidal silica with variable size particles in formulation, and / or methods of making the same. In certain example embodiments, the AR coatings advantageously exhibit high transmission, high transmission gain with respect to uncoated articles, and high b* values, before and / or after heat treatment. The AR coatings of certain example embodiments may be temperable or otherwise heat treatable (e.g., at temperatures of 500 degrees C. or greater) together with their supporting substrates. In certain example embodiments, the particle size for the colloidal silica is 10-110 nm, and the b* values are at least about 0.8. Certain example embodiments may be used in connection with photovoltaic devices and / or the like.

The invention discloses a double chimney tracking solar energy sea water desaltation system and a desaltation method thereof. A heat collection shed arranged horizontally is connected with an inner chimney; a trough-type light-focusing module arranged aslant is connected with an outer chimney; the height of the outer chimney is higher than that of the inner chimney; a wind turbine is arranged at the bottom of the inner chimney; a liquid separating device is arranged in the dividing wall between the inner chimney and the outer chimney; a condenser is arranged in the inner chamber channel and on the outer surface of the outer chimney; the solar energy heating horizontal heat collection shed generates air flow; the air flow pushes the wind turbine at the bottom of the inner chimney to provide part electrical energy needed by the system; the trough-type light-focusing module heats the seawater to generate water vapor; the air flow in the inner chimney injected water vapor flows to the condenser, and is condensed to fresh water; the fresh water flows in a fresh water tank along the outer chimney wall; strong brine with a relatively high temperature flows in a horizontal heat collection shed bottom heat storage layer to store energy. The solar energy sea water desaltation system and the desaltation method have the advantages that light-focusing solar energy is utilized to heat the seawater; the structure is compact; power source and capacity source are separated from each other reasonably; solar energy can be utilized and managed better, and the fresh water productivity can be improved.

A method is for filtering tomographic 3D images of an examination object. The examination object is imaged by using a volume model that divides the volume of the examination object into a multiplicity of three-dimensional image voxels with individual image values, wherein the image value of each voxel reproduces an object-specific property of the examination object in this volume. After the reconstruction of the total volume for each voxel, variances are calculated in a prescribed region or radius R in order to determine contrast jumps and their spatial orientation with their tangential planes T. The image values in the tangential plane T are filtered with a two-dimensional convolution, and subsequently the original voxel data are mixed in weighted fashion with the filtered voxel data.

The invention discloses a method for selecting a best imaging waveband of molten pool vision based on spectral analysis. The method includes the following steps: (1) according to the spectral responseof a camera, simulating the response intensity of the camera at different wavelengths under different blackbody temperatures to obtain a camera spectrogram and normalize the camera spectrogram; collecting a molten pool self-radiation spectrogram in the welding process by a spectrometer, and normalizing the corresponding intensity of the collected molten pool self-radiation spectrogram; (2) makinga difference between the relative intensity of the normalized molten pool self-radiation spectrogram at different wavelengths and the relative intensity of the normalized camera spectrogram to obtaina difference value; (3) selecting a waveband with a difference value greater than or equal to 0.4 as the best imaging waveband for molten pool vision. According to the method for selecting the best imaging waveband of the molten pool vision based on spectral analysis, arc light in the bast imaging waveband of the molten pool vision is weaker, the camera spectral response is stronger, and the imaging waveband is wider, so that the radiation amount of the molten pool can be effectively improved.

A computed tomography unit includes at least one X-ray tube, that scans an object in a fashion rotating in a circle or spiral about a z-axis, in combination with an oppositely situated detector having a multiplicity of detector rows. Each detector row includes an aperture Δz in the z-direction, having a multiplicity of detector elements. Between the X-ray tube and detector, a detector diaphragm is arranged that reduces the aperture Δz of the detector rows in the z-direction. The X-ray tube includes a focus, of variable location relative to the X-ray tube and which alternatingly assumes during scanning at least two different positions that have different z-coordinates relative to the X-ray tube R.

The invention relates to a privacy protection display implementation method based on visual passwords. A pseudo random number generator (PRNG) is preset between an encryption module 1 and an encryption module 2, and a distance parameter between two liquid crystal layers is set to be d through a visual area configuration module, so that the size of a visual area is controlled, and the screen refresh frequency in two display interface cards is set to be 60 Hz. A common browse mode or a private browse mode is selected through a security configuration module, and a privacy protection display based on visual passwords can work normally after deployment is completed. The dual purposes of preventing candid camera and electromagnetic leakage are achieved, the screen luminance will not be reduced, radiation is prevented from being largely increased, and the cost is much lower than the cost of building a shielding room.

The invention discloses an attenuation correction method based on image segmentation. The method comprises the following steps: 1) carrying out reconstruction on original emission data of a nuclear imaging system; 2) carrying out filtering and de-noising processing on the obtained reconstructed image, and then, carrying out threshold segmentation, nonlinear scale transformation and differential treatment to obtain a gradient image; 3) carrying out segmentation on the gradient image according to the gradient distribution of the gradient image; 4) carrying out region merging on the segmented gradient images to obtain final segmented images; 5) providing a corresponding linear attenuation coefficient for each segmented image to obtain corresponding attenuation images; 6) carrying out orthographic projection on each attenuation image and carrying out correction on the original emission data according to the projection data; and 7) carrying out reconstruction on the corrected original emission data to obtain an image after attenuation correction. Compared with the prior art, the method does not need manual intervention, and can reduce personal errors. Besides, the method is quick in realization speed and can improve image reconstruction speed of the system.

The invention discloses a multi-point measuring temperature sensor based on an optical fiber radiation attenuation temperature property. The multi-point measuring temperature sensor comprises an optical source, an optical splitter, N reference optical path channels, N measuring channels, a sensitive optical fiber sensing head, a double-channel optical power meter and a computer; an optical switch is embedded between each measuring channel and the optical power meter; the light switches can be controlled to be switched among the measuring channels so as to achieve the time division multiplexing of the sensor; and once the sensor is simplified to use, one reference light path channel is adopted to replace the N reference light path channels. According to the multi-point measuring temperature sensor, sensitive optical fiber sensing heads of the different measuring channels are positioned in different temperature environments, so that the distributive measurement on temperatures can be achieved, the temperature variation at a plurality of measuring points of a measured system can be monitored at the same time, and the temperature of each measuring point can be accurately distinguished.

An antenna apparatus is mounted at a wheel rim as a transponder of a system for monitoring a tire pressure or the like, and attached at an end portion of an air valve. The apparatus includes a circuit board having an electronic circuit portion and a grounding conductor layer, a sheet-metal inverse-F type antenna element, a sheet-metal shield case conducting to the grounding conductor layer to cover the electronic circuit portion, and a resin case for accommodating these components. One side surface extending in a longitudinal direction of a space defined between the circuit board and the radiating conductor of the antenna element faces one of sidewalls of a tire, and the other side surface thereof faces a wall surface of the wheel rim with a distance interposed therebetween, the distance being about one-fourth of a wavelength of a radio wave to be used.

A high combustion efficiency device for liquid fuel comprises a hollow member made of electrically conductive material, liquid filling the hollow member and tourmaline particles dispersed in the liquid, wherein the high combustion efficiency device is formed to be attachable to at least one of a fuel tank for liquid fuel and a fuel passage extending from the fuel tank to a combustion device of the liquid fuel.