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1001results about How to "Control quantity" patented technology

Dynamically matching users for group communications based on a threshold degree of matching of sender and recipient predetermined acceptance criteria

A method for enabling users to exchange group electronic mail by establishing individual profiles and criteria, for determining personalized subsets within a group. Users establish subscriptions to an electronic mailing list by specifying user profile data and acceptance criteria data to screen other users. When a user subscribes, a web server establishes and stores an individualized recipient list including each matching subscriber and their degree of one-way or mutual match with the user. When the user then sends a message to the mailing list, an email server retrieves 100% her matches and then optionally filters her recipient list down to a message distribution list using each recipient's message criteria. The message is then distributed to matching users. Additionally, email archives and information contributions from users are stored in a database. A web server creates an individualized set of web pages for a user from the database, containing contributions only from users in his recipient list. In other embodiments, users apply one-way or mutual criteria matching and message profile criteria to other group forums, such as web-based discussion boards, chat, online clubs, USENET newsgroups, voicemail, instant messaging, web browsing side channel communities, and online gaming rendezvous.
Owner:TUMBLEWEED HLDG LLC

Apparatus for generating light in the extreme ultraviolet and use in a light source for extreme ultraviolet lithography

The device comprises a device (2) for creating an essentially linear target (4) in an evacuated space where laser beams (1) are focused, the target being suitable for interacting with the focused laser beams (1) to emit a plasma emitting radiation in the extreme ultraviolet. A receiver device (3) receives the target (4) after it has interacted with the focused laser beams (1), and a collector device (110) collects the EUV radiation emitted by the target (4). The focusing elements (11) for focusing the laser beams on the target (4) are arranged in such a manner that the laser beams (1) are focused on the target (4) laterally, being situated in a common half-space relative to the target (4) and being inclined at a determined angle lying in the range about 60° to about 90° relative to a mean collection axis (6) perpendicular to the target (4). The collector device (110) is disposed symmetrically about the mean collection axis (6) in the half-space containing the laser beams (1) focused on the target (4) and inside a conical space (8) centered on the mean collection axis (6) with a vertex situated at the target (4) and a half-angle at the vertex that is less than the angle of inclination of the focused laser beams (1) relative to the mean collection axis (6). The device is suitable for use as a source for EUV radiation in lithography for fabricating integrated circuits.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1

Video key frame extraction method based on color quantization and clusters

InactiveCN103065153ALow type dependencyAvoid redundant selectionCharacter and pattern recognitionTelevision systemsCanonical quantizationFrame difference
The invention discloses a video key frame extraction method based on color quantization and clusters. The method comprises the steps of loading video data flow; conducting single frame scanning on video flow; conducting the color quantization on obtained frame images, and extracting main color features of the frame images going through quantization; calculating similarity of adjacent frames so as to obtain adjacent frame difference; conducting shot boundary detection according to the adjacent frame difference; conducting shot classification on intersected shots and extracting a representative frame of each shot; and conducting compression clustering on the sequence of the representative frames so as to obtain a key frame sequence. According to the method, the color quantization is conducted on the single frame images so that main color of the images is extracted, frame difference calculation is conducted through the cluster feature similarity calculation method based on color features of the clusters so that the shot boundary detection is realized, and finally clustering according to the compression ratio is conducted on the extracted representative frames. Due to the fact that he whole process is low in dependency on video formats and types, the method has good universality and adaptability, is simple in calculation and low in space consumption, and can effectively avoid the phenomenon of key frame selection redundancy, control the number and quality of the key frames, and realize control of the video compression ratio.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Preparation method of bionic artificial bone with multistage [micrometer/nanometer] pore structure

InactiveCN103462729APrecise control over distributionPrecise Control of ConnectivityBone implantCorrosionAdhesion process
The invention relates to a preparation method of a bionic artificial bone with a multistage [micrometer/nanometer] pore structure. The method is characterized by the following steps of: realizing 150-800 mum gradient through pores by selective laser sintering (the diameter of the light spot is micrometer scale); mixing and performing oxygenolysis on a small amount of high polymer microballoons in the sintering process to form 10-100 mum random spherical pores; finally obtaining the bionic artificial bone which has an three-dimensional hierarchical pore structure similar to that of a natural bone by a method of obtaining irregular pores in tens of nanometer surfaces by a corrosion process. In the invention, according to the requirement of an implanting position, the distribution, connectivity and the like of the gradient through pore can be accurately controlled by adjusting sintering process parameters; the shape, size and the like of the spherical pores can be controlled by precisely controlling the furnace temperature curve and high polymer particle properties; the size, quantity and the like of the nanometer pores can be controlled by controlling the corrosion liquid concentration and corrosion time. The preparation method disclosed by the invention has an important significance in creating a microenvironment beneficial to cell adhesion, proliferation and function exertion, improving forming of new bones, and increasing healing of bones.
Owner:CENT SOUTH UNIV

Method for producing steel plate of petroleum storage tank by using direct quenching process

ActiveCN102230057AImprove hardenabilityEffective control typeHeat-affected zoneHigh energy
The invention discloses a method for producing a steel plate of a petroleum storage tank by using a direct quenching process. The invention provides a chemical composition of special petroleum storage tank steel and adopts a direct quenching process. The method comprises the following steps of: heating a steel blank to 1100 to 1280 DEG C, rolling into a steel plate in re-crystallization and non-recrystallization stages; carrying out on-line quenching operation under the conditions that the temperature of the steel plate is between 780 DEG C and 900 DEG C, the average cooling rate ranges from 25 DEG C / s to 60 DEG C / s, the cooling terminal temperature is less than or equal to 350 DEG C, and performing off-line tempering on the steel plate subjected to quenching. Compared with the conventional high-energy-consumption hardening process based on the combination of off-line tempering and tempering, the method provided by the invention has the advantages of short production flow and low energy consumption and the prepared steel plate has good general mechanical properties and high heat input welding property. The yield strength of the steel plate is more than 490 MPa and the tensile strength of the steel plate is more than 610 MPa. In case of high heat input welding (less than or equal to 400 KJ / cm), a welding heat affected zone maintains excellent low-temperature toughness, and the mean value of work done by impact at -20 DEG C is more than 50 J.
Owner:HUNAN VALIN XIANGTAN IRON & STEEL CO LTD +1

Bayesian algorithm-based content filtering method

The invention discloses a Bayesian algorithm-based content filtering method. Content filtering is performed for text information in a 3rd generation mobile communication core network, text classification is performed by using a double threshold-based Bayesian algorithm, C1 is set to be normal information, C2 is set to be junk information, a classifier estimates the probability that a characteristic vector X which represents a data sample belongs to each class Ci, and a Bayesian formula for the estimation is that: P(Ci/X) = P(X/Ci) P(Ci)/ P(X), wherein i is more than or equal to 1 and less than or equal to 2, the maximum value of a posterior probability is called the maximum posterior probability, for an error (a reference source is not found) of each class, the error (a reference source is not found) only needs to be calculated, a characteristic vector X of an unknown sample is assigned to the Ci class of the error (a reference source is not found) with the minimum risk value. Characteristic selection is performed by adopting document frequency (DF), and classification is performed by using minimum risk-based double threshold Bayesian decision. In a time division-synchronous code division multiple access (TD-SCDMA) mobile internet content monitoring system, the algorithm has higher controllability and can realize real-time high-efficiency classification of mass text information.
Owner:SOUTHEAST UNIV
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