492results about How to "Improve compromise" patented technology

Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative embodiments relate to picture and / or video coding applications.

The invention relates to a pressure dome for connecting a transducer with a fluid system comprising an inlet channel and an outlet flow as well as a measuring chamber in which a fluid is able to circulate and which has a measuring membrane. To improve fluid irculation and simplify handling, the measuring chamber ceiling is configured in the shape of a calotte and the pressure dome is removably coupled to the transducer housing by means of a snap connection.

A method is provided for extracting a sequence of pilot symbols enabling to estimate the transfer function of a transmission channel. At least a radiocommunication device communicates through the channel with a remote station, the latter regularly delivering to the radiocommunication device a reference pattern. The structure of the reference pattern is variable, depending on at least one characteristic of the transmission channel.

The invention relates to an MIS transistor comprising a channel region (118), source (114) and drain (116) regions arranged on either side of the channel, and a gate (150) set closely above the channel region. According to the invention, the channel has a doped central part (140), located between the source and drain regions, and separated from said source and drain regions.

The invention relates to an appliance for cooking under pressure, the appliance comprising:a bowl and a lid; andopening safety means suitable for going between a neutral position, in which they allow the lid to be unlocked, and a blocking position, in which they prevent the lid from being unlocked, said safety means being designed to find themselves in the blocking position when the pressure prevailing inside the vessel is greater than or equal to a predetermined value or “rise pressure”, and / or when the temperature prevailing inside the vessel is greater than or equal to a predetermined value or “rise temperature”;said appliance being further comprising actuating means for actuating the safety means, which actuating means are arranged to make it possible to place the safety means in the blocking position. The invention is applicable to household appliances for cooking under pressure.

The invention is a hoist system for use on a drilling rig made of a tubular mast with a front, back, and top side, a splittable block connected to the mast top side, a trolley with a trolley top and bottom side, wherein the trolley's top side is connected to the splittable block and wherein the trolley is removably secured on the mast's front side, a gripper connected to the trolley bottom side for gripping a load, a hoist cable passing through the splittable block and connected on one end to a hoist cable winch, and a hoist cable winch adapted to pull the hoist cable over the mast top side and through the splittable block to move the trolley relative to the tubular mast and lift the load.

A transparent illuminated infusion cannula is provided for illuminating an area during eye surgery. An optical fiber may be spaced a certain distance away from the cannula such that fluid flow around the distal end of the fiber and into the transparent cannula may occur with a much higher flow rate than what had previously been possible. The fiber cannula airspace may be optimized so that the cross-sectional area of the fluid conduit remains substantially constant in order to achieve a best compromise between high light transmittance and high fluid flow rate.

A method and a device for warning a driver, the magnitude of the generated warning signal being a function of the probability of the driver inattentiveness.

A binderless storage phosphor screen with needle shaped crystals, wherein the phosphor is an alkalihalide phosphor and the needles show high [100] unit cell orientation in the plane of the screen.

The invention relates to a method for precisely casting a titanium alloy and a titanium aluminum alloy with low cost, which relates to a method for precisely casting the titanium alloy and the titanium aluminum alloy, and solves the technical problem that cast pieces have low surface quality and internal quality in the conventional method for lowering the cost of precisely casting the titanium alloy and the titanium aluminum alloy by using electrically-fused alumina and silica sol. The method comprises the following steps of: preparing a surface layer binder from zirconium sol, silica sol, a wetting agent JFC, n-octyl alcohol, polyvinyl alcohol and latex; adding calcium carbonate, alumina, titanium dioxide and zirconia to prepare a surface layer coating; preparing a shell surface layer; preparing a shell back layer by a universal method for precisely casting the titanium alloy; dewaxing and sintering to obtain a shell; and casting the titanium alloy or the titanium aluminum alloy by using the shell so as to obtain a titanium alloy cast piece or a titanium aluminum alloy cast piece. Compared with a precise casting method by purely using a zirconium-based binder and a zirconia fireproof material, the method has the advantage that raw material cost is lowered by 30 to 70 percent and the method can be used for civil titanium alloy cast pieces and titanium aluminum alloy cast pieces for common aviation.

A piston ring for internal combustion engines with a coating of Chromium nitride (CrN) deposited by a physical vapor deposition process on a sliding surface with a typical crystal structure of CrN phase, has a high wear resistance and superior resistance to the generation of micro-cracks and consequent localized loss of pieces of the coating. The coating is a columnar crystalline coating of CrN having a dispersed pore content lower than 10% in volume and ratio of intensities, measured through x-ray diffraction, between the crystal planes (111) and planes (200), parallel to the surface, in the range of 0.40 to 0.70. This crystalline distribution is obtained through an oxygen content impregnated in the CrN coating between 1.0% in weight to 7.0% in weight. The Vickers hardness of the film ranges from 1,500 to 2,200 HV.

The invention discloses a method and system for locating a mobile terminal, and belongs to the field of wireless service supporting in mobile communication. The method integrates the advantages of a support vector machine and a K-nearest neighbor algorithm, and through the stages of off-line drive test sampling and model training, two layers of SVM locating models and KNN locating models are constructed. In an on-line locating stage, the two layer of the SVM locating models and the KNN locating models are combined, so that the locating precision of the mobile terminal is greatly improved. The method achieves compromise and balance between the algorithm complexity and the locating precision, and compared with a traditional locating method, the method effectively improves the locating precision, greatly reduces calculated amount and improves the locating speed.

The present invention is directed to a photoinitiator composition comprising two different cationic photoinitiators and a photocurable composition comprising said photoinitiator composition. Moreover, the present invention relates to the use of the photoinitiator composition and the photocurable composition. Furthermore, the present invention relates to a process for producing a three dimensional article.

Transrectal ultrasound guided transperineal low dose-rate brachytherapy has been emerged as one of the definitive treatments of low-risk prostate cancer. Ultrasound has been an excellent tool in guiding the implant needles with respect to prostate anatomy, yet it cannot show reliably the location of radioactive seeds after they are released in the prostate. Intraoperative C-arm fluoroscopy can show the implanted seeds, but it cannot detect prostate anatomy. Intra-operative fusion of these two complementary modalities offers significant clinical benefit by allowing for real-time optimization of the brachytherapy implant as the procedure progresses in the operating room. Disclosed is a system and method for mitigating this problem and providing registration of seeds seen by fluoroscopy with live prostate anatomy visualized by transrectal ultrasound.

The invention relates to an electronic device 1 offering a plurality of menu items to a user. In order to enable a user friendly selection of the menu items, the electronic device 1 comprises a screen 60, user input means 70, storing means 50 adapted to store parameters for a virtual model of a user and processing means 31. The processing means 31 are adapted to generate a visual representation of a virtual user model 61 on the screen 60 based on the stored parameters for the virtual model of a user, to cause a movement of a visually represented virtual user model 61 depending on a user input, to detect a movement of a visually represented virtual user model 61 that is associated to a particular menu item, which menu item is offered for any of a plurality of applications, and to call a function that is assigned to the particular menu item.

A seat mounting rail for securing seats to a floor of a passenger aircraft is made of a seat securing upper section and a rail mounting lower section. Both sections are made of different metals. The upper section is made of a titanium alloy for corrosion protection. The lower rail section is made of an aluminum alloy for weight reduction. The interconnection between the two sections is made as a thermal joint for example formed as a laser weld, which is preferably a butt weld to save welding material.

A low rolling resistance tire (1) for vehicles is described which comprises at least one belt layer (7) coaxially extending around at least one carcass ply (3), a composite tread (10) coaxially extending around the belt layer (7) and comprising a radially outer layer (12) and a radially inner layer (11), wherein the ratio between the modulus of elasticity E' at 70° C. of the radially inner layer (11) and the modulus of elasticity E' at 70° C. of the radially outer layer (12) is comprised between 1.1 and 3, and the ratio between the value of tangdelta at 70° C of the radially inner layer (11) and the value of tangdelta at 70° C. of the radially outer layer (12) is lower than 0.8. Advantageously, the tire (1) achieves a better compromise between the characteristics of rolling resistance, handling and comfort with respect to what is obtainable from known tires for the same type of use.

A tire tread comprising: a plurality of elements in relief (rib and / or block) comprising a contact face intended to come into contact with the roadway during travel and lateral faces, the intersection of each lateral face with the contact face forming a ridge, a plurality of cutouts in the form of grooves and / or incisions, said cutouts being defined by opposing main faces, each tread pattern element being formed with at least one rubber mix (referred to as “base mix”), and characterized in that, viewed in section in a plane containing the thickness of this tread, at least one face defining at least one cutout is formed at least in part with a rubber mix, referred to as “covering mix”, the base mix having a grip on wet ground which is lower than the grip of the covering mix on the same ground.

A communication unit comprises a receiver for receiving a message sent on an allocation channel, packet identifying logic, capable of identifying a data type of the received message, operably coupled to buffer logic for buffering data packets to be sent to the second communication unit. In an active mode of operation, the receiver of the communication unit is capable of intermittently receiving the message sent on the allocation channel and transition to continuously receive the message sent on the allocation channel in response to either: the buffer logic identifying that data packets are to be transferred to the second communication unit; or the packet identifying logic receiving a communication resource allocation message and identifying resource allocation data therein.

Disclosed in the invention is an ant colony algorithm-based high-energy efficiency wireless sensor network routing method. The method comprises three parts: cluster establishment, transmission in cluster, and transmission between clusters. When a multi-hop relay node is selected, a heuristic ant colony intelligent algorithm is employed to search a multi-hop transmission route; and during the searching process, an expectation importance influence is eliminated and a probability for node selection is completely decided by the link pheromone concentration. And when a local link pheromone is updated, a dump energy minimum value of a collaboration zone node is multiplied by link pheromone increasing degree Q and then the result is divided by transmission energy consumption, thereby completing updating. According to the new pheromone updating method, the dump energy and the transmission energy consumption of the node are scaled appropriately and then are introduced to the link pheromone updating; and when the dump energy of the collaboration zone node at the next hop is increased and the transmission energy consumption is reduced, the node can be selected. Therefore, when the routing method is used, total energy consumption of the network can be reduced; the dump energy of the network nodes can be balanced; and the working life of the network can be prolonged.

A dynamic aircraft headlight, includes an LED group, having a plurality of LEDs, and an optical system, comprising at least one optical element, for shaping an output light intensity distribution from the light emitted by the LED group. The LED group and the optical system are stationary within the dynamic aircraft light unit, with each LED of the LED group has a set position with respect to the optical system and with a light output of each LED being affected differently by the optical system.

The invention discloses a multi-objective optimization method for a hybrid active power filter. The method comprises the following steps: analyzing the relationship between all elements of an active leg and a passive leg of the hybrid active power filter and a system impedance, and the coupling relationship between all the elements of the active leg and the passive leg so as to obtain a first class constraint condition; acquiring a performance, cost and loss model of the filter; setting a second class constraint condition according to the specification of the filter; establishing an objective function base on the performance, cost and loss model and combining the first class constraint condition and the second class constraint condition to serve as a constraint condition of the objective function; processing the objective function and the constraint condition thereof to construct a new objective function; and obtaining an optimal solution based on a chaotic algorithm and a multi-objective PSO (Particle Swarm Optimization) algorithm based on Pareto optimal solution. Compared with an optimization algorithm with two objects, the optimization algorithm with three objects formed by establishing a three-dimensional optimization objective function based on the performance, the cost and the loss can enable the optimal solution to obtain a better tradeoff among the three aspects of the performance, the cost and the efficiency.

A method and a system for the localization of a mobile WLAN client, located within a WLAN network of multiple WLAN stations. Static reference points are ascertained by measuring field strengths of the WLAN stations at spatial coordinates, aided by WLAN client(s), and assignment of the measured field strengths to the spatial coordinates in terms of data records. Self-learning ascertainment of further dynamic reference points is obtained by measuring field strengths of the WLAN stations, aided by WLAN client(s) moving through the region of the network, and assignment of the measured field strengths in terms of data records to the respective spatial coordinates calculated for this purpose, in the database server. This may be done to localize a WLAN client by selecting a plurality of nearest matched data records of static and dynamic reference points whose subsequently calculated center of gravity corresponds to the estimated position of the WLAN client.

This invention discloses the production and use of a polyethylene composition comprising a metallocene-produced linear low density polyethylene and a multi modal high density polyethylene prepared from either a Ziegler-Natta or a metallocene catalyst system. The resulting polyethylene composition is suitable for preparing articles having improved environmental stress crack resistance, rigidity, contact transparency, gloss as well as good processing capabilities.

The invention provides a method for dynamically re-dispatching job shop multi-process routes in batches based on a two-stage differential evolution algorithm, relating to the evaluation of a re-dispatching parameter, the construction of a dispatching model and the compilation of a dispatching proposal. The method comprises the following steps: setting up a multi-process routes batching dispatching model based on a period and event driven re-dispatching strategy, and providing the two-stage differential evolution algorithm to solve the model, so as to solve the problems of batching dividing and dispatching optimizing. Considering the condition that each work procedure of work pieces possibly has uneven capability in real environment, the method divides the each work piece in batches at the each work procedure, and the designed two-stage differential evolution algorithm solves the problems of batching dividing and dispatching optimizing, so as to effectively reduce the free time of a machine, shorten a production period, and be completely suitable for complex environment change in the process of machining and real-time treatment.

In a method for correction of an image data set that was acquired with a planar image detector using at least two calibration images that were acquired in a preliminary procedure, as well as a method for generation of an image from a raw image data set that was acquired with a planar image detector with a high-sensitivity dynamic range and with a low-sensitivity dynamic range and which is composed of two image data sets, of which one was acquired in the high-sensitivity dynamic range and the other was acquired in the low-sensitivity dynamic range, at least two calibration images are generated in each dynamic range in a preliminary process. These calibration images are used in a correction procedure for the correction of the individual image data sets, as well as in a combination procedure to merge the two corrected image data sets into one image. In the combination procedure the two image data sets are conformed to one another using a comparison of the calibration images of the high-sensitivity dynamic range with the calibration images of the low-sensitivity dynamic range. The adjusted, corrected image data sets are added with weighting in a second step.

The invention relates to a low-power voltage transconductance adjustable transconductance-constant rail-to-rail input operational amplifier, which comprises a transconductance-constant control circuit, a rail-to-rail input stage and an output stage, wherein the transconductance-constant control circuit makes the transconductance of the rail-to-rail input operational amplifier approximate to twice a reciprocal of a resistance value of a reference resistor by feeding back and controlling the tail current of the rail-to-rail input stage. Simultaneously, the transconductance of the rail-to-rail input operational amplifier can be changed by changing the resistance value of the reference resistor. The rail-to-rail input operational amplifier can work under a low power voltage, and has the advantages of rail-to-rail common mode input range, transconductance adjustability, constant transconductance and the like.