30results about How to "Increase spatial distribution" patented technology

An expandable medical device having a plurality of elongated struts, the plurality of elongated struts being joined together by ductile hinges to form a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter. The plurality of struts and ductile hinges are arranged to improve the spatial distribution of the struts which is particularly important when delivering beneficial agents with the struts. The improved strut arrangement expands to a substantially parallelogram shape for improved beneficial agent distribution to the surrounding tissue. A beneficial agent may be loaded into openings within the struts or coated onto the struts for delivery to the tissue.

A gel system comprising a fractal network of nanoparticles and macroscopic particles is disclosed. The gel system is capable of forming an “optical gel” effective to blurrfine lines and wrinkles as a consequence of the size domain differences between the fractal particles and the macroscopic particles. Cosmetic compositions comprising such gels and methods for their use are also disclosed.

A method of analysing ions is disclosed comprising performing an initial multi-dimensional survey scan comprising separating parent ions according to a first physico-chemical property (e.g. ion mobility) and then separating the parent ions according to a second physico-chemical property (e.g. mass to charge ratio). A plurality of parent ions of interest are then determined from the initial multi-dimensional survey scan. Once parent ions of interest have been determined, the plurality of parent ions of interest are sequentially selected based upon the first and second physico-chemical properties during a single cycle of separation. The parent ions of interest may then be fragmented and corresponding fragment ions may then be mass analysed.

Disclosed is a nozzle assembly comprising a nozzle housing and a valve element axially slidable therewithin between a closed and an open position. The nozzle housing has a housing inlet and a housing outlet fluidly interconnected by a plurality of housing passages. The valve element has a truncated conical valve body including a conical outer surface and a concave inner surface with a plurality of valve apertures extending through the valve body. The outer surface is sealingly engagable to a valve seat formed in the housing outlet such that the flow of cooling water through the valve apertures is prevented when the valve element is in the closed position. The outer surface and valve seat collectively define an annular gap when the valve element is axially displaced to the open position such that a portion of the cooling water flowing through the annular gap may pass through the valve apertures.

The invention discloses a large-scale dynamic evolution dust type aerosol retrieval method. The large-scale dynamic evolution dust type aerosol retrieval method comprises step 1 training a classifier; acquiring a source field sample and a cloud layer sample of a dust type aerosol layer and a target field sample of the dust type aerosol layer according to passive type satellite sensor remote sensing data; acquiring characteristic vectors of the samples according to active type satellite sensor laser radar profile data; training a support vector machine classifier according to the characteristic vectors of the source field sample and the cloud layer sample; optimizing the classifier according to the characteristic vector of the target field sample and the transfer learning theory; step 2 performing retrieval on the dust type aerosol through an optimized classifier. The large-scale dynamic evolution dust type aerosol retrieval method can improve the cloud-sand classification accuracy after the dust is subjected to long-distance transmission, effectively reverse the situation that only low-accuracy data provided by NASA (National Aeronautic And Space Administration) can be used currently passively, solve the bottleneck problems that, in China, large-area dust vertical profile data is lost and the data usability is poor and the like and satisfy the observation requirement of dust aerosol source regions and diffusion transmission regions in China and even the globe.

The invention discloses a sand-dust type aerosol inversion method based on support vector machine identification. The method comprises the steps of selecting a sand-dust aerosol layer with obvious characteristics, a thick cloud layer with obvious characteristics and a thin cloud layer with obvious characteristics as classification samples, training classifiers through various sample numbers and characteristic vectors, then confirming an optimal classifier, classifying data of a satellite borne laser radar sand-dust source region, obtaining a sand-dust aerosol identification result with high accuracy, and inverting level height and optical thickness of an aerosol. According to the sand-dust type aerosol inversion method based on the support vector machine identification, a support vector machine is used for confirming characteristics of a hyper-plane through support vectors, the requirements for the number of the samples can be reduced, interference on classification accuracy due to sample uncertainty is reduced, and 532nm polarization detection data and level height information of a satellite borne laser radar are effectively used for distinguishing non-spherical ice crystal cloud and sand-dust type aerosol particles. The sand-dust type aerosol inversion method based on the support vector machine identification is particularly suitable for processing satellite borne laser radar detection data of a sand-dust season in northwest region of our country.

This invention relates to a process and an apparatus for generating hydrogen and oxygen gas by electrolysis of water. The process involves forming an electrolyte including alkaline ions and the water and generating plasma between electrodes immersed in the electrolyte by applying an electrical potential between the electrodes. The plasma ionises the electrolyte, thereby generating hydrogen and oxygen gas. The process further involves controlling the process by relocating the generated plasma between two or more further electrodes.

An improved valve element for a spray nozzle assembly of a steam desuperheating device that is configured to spray cooling water into a flow of superheated steam in a generally uniformly distributed spray pattern. The valve element comprises a valve body and an elongate valve stem that is integrally attached to the valve body and extends axially therefrom. The valve body itself comprises a nozzle cone which is integrally connected to the valve stem, and defines an outer surface. Integrally formed on a bottom surface of the nozzle cone is a hub having multiple ribs protruding therefrom. Integrally connected to each of the ribs is a generally circular fracture ring. The fracture ring is disposed in spaced relation to the lower edge of the nozzle cone which circumvents the bottom surface thereof. In this regard, a series of windows are formed in the valve body, with each window being framed by a segment of the lower edge of the nozzle cone, an adjacent pair of the ribs, and a segment of the top edge of the fracture ring.

The invention provides a method for treating aquaculture sewage based on microbial degradation, and belongs to the technical field of environmental protection. According to the method, a filtering filler loaded with algae bacteria is provided for preliminary adsorption and filtration of sewage, and algae bacteria fixed pellets are provided for symbiotic purification of the sewage. The algae bacteria are placed in a nitrogen-free phosphorus-free culture environment for enlargement culture, and nitrogen and phosphorus domestication is performed before loading or fixing, when the domestication operation is terminated, a weight percentage of ammonia nitrogen in the culture environment is at least 25%, and a weight percentage of phosphorus is at least 20%. The method has remarkable decontamination and deodorization treatment effects, can adapt to large changes in the nitrogen and phosphorus content of sewage, and treatment temperature, has high microbial nitrogen and phosphorus tolerance and removal rate, and has low treatment input cost and energy consumption. The used filtering filler has large loading capacity, high adsorption capacity and adsorption efficiency, and low biological loss during a storage period. The used algal bacteria fixed pellets have high mass transfer efficiency, good anti-microbial decomposition performance, long storage period and effective use period, and high sewage treatment efficiency of the microorganism at a relatively low temperature.

Disclosed is a nozzle assembly comprising a nozzle housing and a valve element axially slidable therewithin between a closed and an open position. The nozzle housing has a housing inlet and a housing outlet fluidly interconnected by a plurality of housing passages. The valve element has a truncated conical valve body including a conical outer surface and a concave inner surface with a plurality of valve apertures extending through the valve body. The outer surface is sealingly engagable to a valve seat formed in the housing outlet such that the flow of cooling water through the valve apertures is prevented when the valve element is in the closed position. The outer surface and valve seat collectively define an annular gap when the valve element is axially displaced to the open position such that a portion of the cooling water flowing through the annular gap may pass through the valve apertures.

The invention discloses a method for extracting ion-implanted region trap concentration data of an infrared focal plane detector. The method comprises the following steps of: performing one-dimensional linear scanning on a pn junction photosensitive element array based on the principle that a photon-generated carrier is generated on a tellurium-cadmium-mercury material through laser irradiation, diffused to a pn junction formed among an ion-implanted n region, a mercury interstitial diffusion region and a p absorption region and separated by a junction electric field so as to form a photocurrent signal, and obtaining a relation curve between the current and position under different temperature conditions, wherein the curve has two pairs of photocurrent peaks, and the distance between peaks of the curve refers to the junction region width of a photosensitive element and the position of the pn junction; and combining numerical simulation, and extracting and obtaining the effective trap concentration of the ion-implanted region at different temperatures. The method has significance for judging the quality of materials in the ion-implanted region of a long-wave tellurium-cadmium-mercury infrared detector.

Methods and systems for analyzing an industrial structure are provided. With a plurality of sensors (e.g. FBGs and/or piezoelectric transducers and/or electromagnetic acoustic transducers) deployed in, on or in proximity to the structure, sensors are interrogated and a function representative of the impulse response of the structure is determined by passive inverse filter. Subsequently, a map of the propagation of the elastic waves through the structure is determined via various modalities, and in particular by tomography (of bulk or guided waves, by analysis of time of flight or of the complete signal). Embodiments especially relate to the management of the number and position of the sensors, to the use of artificial noise sources, and to automatically controlling the sensors and/or noise sources to monitor the health of the structure, or even to view the dynamic behavior of the structure.

A combustion chamber of diesel engine. The diesel engine includes a cylinder head, a cylinder sleeve, and a piston. The cylinder head, the cylinder sleeve, and the piston form the combustion chamber. The combustion chamber includes a headspace; a central part; and a collision belt. The collision belt includes a collision surface, an upper guide surface, and a lower guide surface. The collision belt is configured to connect the headspace and the central part. The collision surface is an inclined surface, a convex surface, or a concave surface. The first tapered surface includes a second inclined surface, a second curved surface, and a third inclined surface; the second tapered surface includes a fourth inclined surface, a third curved surface, and a second concave surface; the first curved surface includes a second convex surface and a third concave surface.

The invention relates to a system for delivering a radiation treatment to a structure (21) within a body. In the system, a plurality of treatments plans is provided, each treatment plan being associated to one of a plurality of predefined possible position (33a; 33b) of the structure (21), which area regularly distributed on at least one predefined surface (32a; 32b). A control unit is configured to determine the position of the structure during the treatment and to select a treatment plan which is associated with a predefined possible position having a smallest distance to the determined position, for controlling the radiation source in response to the detection of the position. Moreover, the invention relates to a computer program for controlling the system and to a planning unit for generating the treatment plans.

The invention belongs to the technical field of artificial intelligence, and particularly relates to a mechanical equipment fault type diagnosis method. According to the method, mode collapse is relieved and a fault data space is expanded by learning effective fault features, so that diagnosis of mechanical fault types is carried out. The set of weight sharing generators is designed to generate fault data of the same type. Universal features of the same fault can pass through a local sharing layer. Through discriminator training based on generated data and real data, the discriminator can obtain fault diagnosis capability. According to the method, a fault data generation network of multiple generators is constructed, so that the problem of'mode collapse 'easily occurring in a current method for generating fault data based on a single-generator neural network is solved, and the problem of a single mode of generating fault data is solved; and, through a local weight sharing mechanism of the group generator, basic fault features of data of the same fault type are effectively learned, so that spatial distribution of fault data is effectively expanded, and universality and accuracy of fault classification are improved.

The present invention discloses an X-ray tube, an irradiation cavity, an X-ray source device and an application thereof. The X-ray tube comprises a cathode filament, a housing, a cover plate and a bottom plate; the internal portion of the housing is a column-shaped vacuum chamber, and two ends of the column-shaped vacuum chamber are respectively sealed by the cover plate and the bottom plate; thecathode filament is winded to a structure being similar to a spring in a heliciform form, the cathode filament is installed in the column-shaped vacuum chamber and is arranged in the length directionof the column-shaped vacuum chamber, the two ends of the cathode filament, namely the two ends of the spring structure, respectively pass through the cover plate and the bottom plate to connect with apower source; and the inner wall of the column-shaped vacuum chamber is uniformly coated with a heavy metal coating as an anode. The X-ray tube is optimized and improved in structure, is large in irradiation space and irradiation intensity, and is especially suitable for application occasions with large irradiation intensities. The new X-ray tube with improved performances is provided for variousX-ray source devices so as to greatly improve the irradiation space utilization rate and the irradiation processing quality of the X-ray source device.

The present invention relates to a method and a device (1) for cooling an arrangement (2) using a cold head (3), with a thermal cooling of the unit (2) to be cooled by means of the thermosiphon principle. At the same time, heat is conducted via a mechanical heat bridge (5), which provides a direct thermal connection from the cold head (3) to the unit (2) to be cooled.

A functional clothing having improved pockets is provided. The functional clothing includes a clothing body, a first pocket, a card holder pocket, a second pocket and an inner pocket. The first pocket is disposed on the clothing body and has a first pocket space. The card holder pocket is disposed in the first pocket space, and the card holder pocket has at least one card holder pocket space. The second pocket is disposed on the clothing body and has a second pocket space. The inner pocket is disposed in the second pocket space, and the inner pocket has an inner pocket space.