240results about How to "Raise the level of performance" patented technology

A device that is useful for removing obstructions from vessels. Various embodiments and methods of use are contemplated for the effective removal of obstructions. The disclosed devices utilize a thrombogenic material to promote the formation of fibrin bonds, thus enhancing adhesion. It is further contemplated that the disclosed devices may be used in all vasculature including the cerebral vasculature and the neurovasculature.

The present invention provides a flash memory management system and method with increased performance. The flash memory management system provides the ability to efficiently manage and allocate flash memory use in a way that improves reliability and longevity, while maintaining good performance levels. The flash memory management system includes a free block mechanism, a disk maintenance mechanism, and a bad block detection mechanism. The free block mechanism provides efficient sorting of free blocks to facilitate selecting low use blocks for writing. The disk maintenance mechanism provides for the ability to efficiently clean flash memory blocks during processor idle times. The bad block detection mechanism provides the ability to better detect when a block of flash memory is likely to go bad. The flash status mechanism stores information in fast access memory that describes the content and status of the data in the flash disk. The new bank detection mechanism provides the ability to automatically detect when new banks of flash memory are added to the system. Together, these mechanisms provide a flash memory management system that can improve the operational efficiency of systems that utilize flash memory.

A machine (1) for extracorporeal blood treatment comprises a device (2) for ultrafiltration of a liquid through a semi-permeable membrane (3) of a blood treatment device (4), a first sensor (11) for ultrafiltration rate through the membrane, a second group of sensors (13) for measuring a trans-membrane pressure, and a programmed controller (14) for calculating a maximum ultrafiltration rate as a function of the transmembrane pressure. The machine is suitable for kidney failure treatments, such as hemofiltration and hemodiafiltration. In a relatively short time the machine enables a large quantity of corporeal blood to be removed from the patient.

A method for routing data in a network is disclosed. As an example, a method for routing data in a wireless mesh network is disclosed. The method determines what type of data is to be routed, associates the type of data with one or more routing link performance parameters such as, for example, link latency and link capacity, selects a plurality of nodes based on the one or more routing link performance parameters, determines what node of the plurality of nodes provides an optimal level of performance associated with the one or more routing link performance parameters, and selects that node as a recipient node for the data to be routed.

A method, and system for intercepting a system call performed by a process and for executing processing in relation with the intercepted system call from user space. The method comprises a first step for setting up, in the executing process, a signal handler performing processing in relation with an interception of a system call in the executing process upon reception of a specific signal. The executing process performs a ptrace system call with a new request, the self ptrace, which sets, in the task descriptor of the executing process, the system trace flag corresponding to the existing system trace ptrace request and set a new flag, the pt_self flag. When a system call is performed in the executing process, a new system call trace is executed testing if the pt_self flag is set. If the pt_self flag is set a specific signal is sent to the executing process itself and the handler which has been set up is executed in user space.

According to the general concept disclosed herein, a circuit for adaptive matching of a load impedance to a predetermined load-line impedance of a load-line connected to a power amplifier output includes a fixed matching network between the power transistor and an adaptive matching network, whereby the fixed matching network acts as an impedance inverter which results in a relatively low insertion loss at high power. Results indicate that the impedance-inverting network can be used over more than a factor of 10 in impedance variation. Further, the usage of the fixed matching network, close to the power transistor, allows for the implementation of transmission zeros and / or for a well defined load impedance at a predetermined harmonic frequency, independent of the (variable) load impedance at the fundamental frequency.

Techniques to bolster the security of an AlphaEta cryptosystem using spectral phase encoding. In one aspect, a spatial light modulator (SLM) is used to change the spectral code (spectral phase) of each optical bit in response to the output of an extended key generator based on a cryptographic algorithm. In other aspects, additional time and polarization modulations are used to maintain high security levels as well as good performance levels. Such methods are combined with traditional key generation methods such as key-distribution centers or one-way mathematical algorithms to bolster the security of traditional key generation as well.

The present invention provides a non-volatile flash memory management system and method that provides the ability to efficiently manage a large array of flash devices and allocate flash memory use in a way that improves reliability and longevity, while maintaining excellent performance. The invention mainly comprises of a processor, an array of flash memories that are modularly organized, an array of module flash controllers and DRAM caching. The processor manages the above mention large array of flash devices with caching memory through mainly two tables: Virtual Zone Table and Physical Zone Table, a number of queues: Cache Line Queue, Evict Queue, Erase Queue, Free Block Queue, and a number of lists: Spare Block List and Bad Block List.

The invention provides a CoMP downlink dynamic cooperative cluster selection method based on an SINR threshold and a token, which belongs to the field of wireless communication and mobile communication. The method comprises the following steps: a cooperative cluster is determined according to the cell-edge signal-to-interference-and-noise-ratio (i.e., the poorest user of SINR) to ensure the performance of an edge user; a neighboring cell with maximum interference to the poorest user of SINR is selected for cooperation, and the cooperative gain is maximal; the SINR after user cooperation meets the criterion of a given threshold to determine the size of the cooperative cluster and the threshold can be flexibly adjusted so that a compromise is obtained between the performance and the complexity; and in addition, a cellular cell is divided into different areas, the token is issued in each area and the cooperative cluster is selected based on the token to avoid the problem of collision when different users synchronously select a cooperative cell.

A bridging system, comprising bridges 3, 4 and network 5, is arranged to transfer data using TCP / IP or similar between a local Storage Area Network (SAN) 1 and a remote SAN 2. In one embodiment, the bridge 3 is arranged to transfer data from a plurality of ports 12-1˜12-n in a periodic sequence. While an acknowledgement from SAN 2 for data transferred from one port 12-1 data is awaited, further data can be transferred using one or more of the remaining ports 12-2˜12-n. In other embodiments, one or more parameters, such as number of ports, Receive Window Size etc., can be optimised using artificial intelligence (AI) routines in order to control the data transfer rate between the bridges 3, 4. The bridging system may be configured to perform a self-learning routine on installation and, in some embodiments, to compile and consult a knowledge base storing optimum configurations for transferring data packets having different attributes by simulating data transfers.

A method for performing adaptive write caching in a storage virtualization subsystem is disclosed. The method comprising steps of: defining criteria associated with an operation state of the storage virtualization subsystem for performing write caching; analyzing the characteristics of a stream of at least one write IO request sent out by a host entity to make a determination of whether the stream meets the criteria; receiving a new write IO request by the subsystem from the host entity; and performing write caching to write data associated with the new write IO request to the PSD array according to the determination.

The invention relates to a granulated powder intended, in particular, for the production of ceramic sintered parts, said powder having the following chemical weight composition, based on dry matter, namely: at least 1% of a first binder having a glass transition temperature less than or equal to 25° C.; 0-4% of an additional binder having a glass transition temperature greater than 25° C.; 0-4% of a temporary additive different from the first binder and the additional binder, the total content of the first binder, the additional binder and the temporary additive being less than 9%; 0-15% of an additive for sintering the ceramic material; at least 2% impurities; and the remainder comprising a ceramic material, and optionally an agent for stabilising said ceramic material, to make up 100%. According to the invention, the median diameter D50 of the powder is between 80 and 130 μm, the percentile D99.5 is less than 500 gm and the relative density of the granules is between 30% and 60%.

The invention discloses a method for improving structure homogeneity and performance of large-section nodular cast iron, which reveals that in large-section ferrite-based nodular cast iron, a position where a graphite nodule is not round and normal, large in size and worst in performance is not in the center where the coagulation time of a large-section cast piece is longest but in a nearly-annular region which is 20mm-40mm away from the outer edge of a large-section nodular cast iron piece. According to the method, reasonable chemical components, and high-quality nodulizing agent and nucleating agent are selected, a proper amount of a trace element Sb is added, a composite nucleation mode of bottom-coated nucleation, iron discharging nucleation and metal-stream nucleation is adopted, a structure of the large-section nodular cast iron in this region is improved, the structure homogeneity and performance of the large-section nodular cast iron are improved, and a low-temperature high-toughness large-section ferrite-based nodular cast iron piece is obtained; the low-temperature high-toughness large-section ferrite-based nodular cast iron piece is excellent in impact resistance and good in tensile property under -20 DEG C and -40 DEG C; and the technical problems that the large-section nodular cast iron piece is easy to be inhomogeneous in structure and bad in strength and low-temperature impact toughness comprehensive performance are solved.

A sports boot comprising a part comprising at least two superposed layers of plastics and comprising an opening that can be closed by catching means distributed on either side of this opening, wherein one of the two layers has one or more recesses lying on an axis in order to define a deformation axis of the shell, allowing that part of the shell that is around this axis to move away in order to enlarge the opening and make it easier to put the boot on and to take it off.

A data transmission control method of down-high speed shared channel in high-speed data insertion system uses a control information used for HS-DSCH demodulation and calibration information brought with VEID of the control information as a first part control information of HS-SCCH at the base station end and to send it at the first time-slot in TTI of HS-SCCH; at UE end before the third time-slot start of HS-SCCH through calibration of the first part control information; whether there is data to be received by UE or not on HS-DSCH at interval of a certain transmission time should be judged so as to confirm HS-SCCH attached with the control information corresponded to HS-DSCH and furthermore to fulfil data reception of HS-DSCH. It is not necessary to have instructions of HS-DSCH from HI, if the abovesaid method is applied.

The invention provides a realization method for functions of an adaptive load type distribution transformer. The realization method comprises the following steps of setting adaptive load type distribution transformer motion constant values which include a three-phase load unbalance adjusting constant value, a phase-splitting reactive compensation constant value, a load capacitance-modulating current constant value and a load voltage-modulating voltage constant value, and according to the set adaptive load type distribution transformer motion constant values, performing three-phase load balance control, phase-splitting reactive compensation control, rated capacity operation model adjusting control and voltage tap shift adjusting control. The realization method fulfills an aim of adaptive loads by scientifically setting the load capacitance-modulating motion constant value and combining the three-phase load unbalance adjustment and phase-splitting reactive compensation strategy, helps to effectively reduce operation loss of the distribution transformer and low-voltage network wire loss, improve the economic operation level of the power distribution area and guarantee power supply quality to users.

The invention provides a halogen-free flame retardant insulation material used for a photovoltaic cable, which belongs to a novel cable material technical field and solves the problems exiting in the present halogen-free flame retardant insulation material used for the photovoltaic cable, that is, poor mechanical properties of tensile strength, elongation break and the like, poor heat aging property, shorter service life, and the like. The halogen-free flame retardant insulation material used for the photovoltaic cable comprises the following components according to a weight ratio: a 100 proportion of base material, 8-35 proportion of flame retardant, 2-8 proportion of stabilizer, and 1-10 proportion of crosslinking sensitizer. The halogen-free flame retardant insulation material used for the photovoltaic cable has the advantages of low production cost, good mechanical properties as heat aging property, tensile strength, elongation break and the like, long service life, low temperature tolerance, ozone resistance, weather resistance, direct current voltage resistance, and dynamic penetration resistance, etc.

An actuating mechanism for the functional elements in a round baler for agricultural crops includes a tensioning arm which is provided with guide rollers and a pivotal arm and which is pivoted on the frame of the baler via a hydraulic cylinder. The hydraulic cylinder is arranged between the pivotal arm and a first arm of a bell crank, which is pivotally mounted on the tailgate. A second arm of the bell crank is selectively engageable with the front part of the housing.

The invention discloses a low-power-consumption high-precision array-type time digital conversion circuit based on multiple VCOs (voltage controlled oscillators). The low-power-consumption high-precision array-type time digital conversion circuit comprises an ultrahigh-phase TDC (time-to-digital converter) circuit, a high-phase TDC circuit, a middle-phase TDC circuit, a low-phase TDC circuit and a DFF latch chain, the ultrahigh-phase TDC circuit, the high-phase TDC circuit and the DFF latch chain are in a pixel exclusive circuit and are arranged in a pixel, and the middle-phase TDC circuit and the low-phase TDC circuit are in a global shared circuit and arranged outside the pixel; measuring of time interval is completed through orderly cooperation of the ultrahigh-phase TDC circuit, the high-phase TDC circuit, the middle-phase TDC circuit and the low-phase TDC circuit, and finally the time interval is converted into a numerical value for representation. The low-power-consumption high-precision wide-range four-phase array-type time digital conversion circuit can be used for an array-type detector timing system and can obviously improve resolution of the system and lower power consumption of the system.

The invention discloses a parameter optimization method of an in-wheel vibration reduction system of electric wheels. The method includes the following steps: step 1, establishing a linear three-degree-of-freedom vibration model of 1 / 4 of a vibration-damping-type electric-wheel vehicle with the in-wheel vibration reduction system, and a linear two-degree-of-freedom vibration model of 1 / 4 of an original electric-wheel vehicle without the in-wheel vibration reduction system; step 2, establishing objective evaluation functions; and step 3, establishing constraint conditions, and finding an optimal objective function. According to the parameter optimization method of the in-wheel vibration reduction system of the electric wheels of the invention, time-domain and frequency-domain cooperative-optimization can be carried out, matching of vibration-reduction-spring stiffness and damper damping coefficients can be optimized, thus impacts of road surface excitation on wheel hub motors and vertical vibration of vehicle wheels and a vehicle body can be reduced, and vehicle ride performance and safety can be improved.

In order to solve the problems that a B5G / 6G network faces higher coverage and larger capacity requirements and an existing ground cellular network is difficult to guarantee the performance of edge users, the embodiment of the invention provides a macro station user distribution scheme for an unmanned aerial vehicle auxiliary cellular network, so that dynamic coverage is provided for the edge users. The method is beneficial to high channel gain brought by a large-probability line-of-sight link of an unmanned aerial vehicle base station; according to the scheme, one or more unmanned aerial vehicles take the ground macro base station as the center and do circular motion in the clockwise or anticlockwise direction, and a high data transmission rate is provided for macro cell users by utilizing the sight distance link and the antenna gain. By adjusting parameters such as the movement track radius, the flight height, the flight speed and the transmitting power of the unmanned aerial vehicle, the coverage range of the unmanned aerial vehicle is dynamically adjusted, and therefore network performance maximization is achieved.

A method for producing heat exchangers having at least two fluid circuits each having channels, including the following steps: producing one or a plurality of elements of a first fluid circuit, each element having at least two metal plates, at least one of which has first grooves; stacking the at least two metal plates of each element in such a way that the first grooves form the channels of the first circuit; assembling each element of the first circuit by diffusion welding between the two stacked metal plates; producing one or a plurality of elements of at least one second fluid circuit, each element of the second circuit having at least a portion of the channels of the second circuit; assembling, either by diffusion welding, or by brazing, or by diffusion brazing between the element or elements of the first circuit and the element or elements of the second circuit.

The present invention discloses an infrared continuous zooming optical system with a large relative aperture and a high zoom ratio. The system comprises in order from an object surface to an image surface: a front fixed lens set, a first zooming lens set, a compensation lens set, a second zooming lens set and a rear fixed lens set. In the zooming process, the first zooming lens set, the compensation lens set and the second zooming lens set are continuously arranged in order, and a high zoom ratio exceeding 50 times and a relative aperture with F being constantly 2 can be obtained at the same time in a mode for separated motion front and back along an optical axis. The zooming optical type is concise, the zooming track is smooth, fixed components and motion components can be separately installed, regulated and located for easy implementation of an optical machine engineering. The infrared continuous zooming optical system can perform continuous zooming, is large in zoom ratio, large inrelative aperture, few in the number of lenses and high in energy collection, is especially suitable for a zooming system with medium waves of 3-5[Mu]m and infrared bands of 8-12 [Mu]m and can achieve100% cold light aperture matching.

The invention relates to a synergistic weeding composition. The synergistic weeding composition comprises weeding activity components consisting of pyribenzoxim and pyrazosulfuron-ethyl, and is suitable for selective control of weeds in beneficial crops such as rice. The synergistic weeding composition comprises the weeding activity components consisting of the pyribenzoxim and the pyrazosulfuron-ethyl, wherein the weight ratio of the pyribenzoxim to the pyrazosulfuron-ethyl is 100: 1 to 1:100. The synergistic weeding composition also can comprise a safety agent. The novel weeding composition is prepared through ternary complex formulation of the pyribenzoxim and the pyrazosulfuron-ethyl, so that defects caused by single use of the pyribenzoxim can be effectively overcome, a weed killing spectrum for the weeds is enlarged, and at the same time generation of drug resistance is postponed. The weeds in rice fields can be basically removed by one-time use of the weeding composition, so that the weeding composition is labor saving, time saving, and effort saving, can alleviate some of the rural labor shortage, and at the same time can play a certain role in increase of both production and income of the rice. The weeding composition shows an enhanced effect on the control of broadleaf weeds, gramineae weeds and cyperaceae weeds of the rice fields.

A heat pump refrigerant system is provided with at least two sequential stages of compression. An intercooler is positioned intermediate the two stages. The refrigerant flowing through the intercooler. is cooled by a secondary fluid such as ambient air. The intercooler is positioned to be in a path of air flow passing over an outdoor heat exchanger, and preferably upstream of the outdoor heat exchanger, in relation to this air flow. Benefits with regard to efficiency and capacity are achieved due to proposed system configuration in both heating and cooling modes of operation, while no additional circuitry or components are required to provide the intercooler function for the heat pump refrigerant system. This invention is particularly important for the CO2 heat pump refrigerant systems operating in the transcritical cycle.