330results about How to "Reduce performance degradation" patented technology

The invention provides a hybrid storage system which comprises at least one solid-state hard disc SSD (solid state drive), at least one mechanical hard disc and a control module, wherein the control module is used for migrating hot spot data blocks in the mechanical hard disc into the SSD, and migrating the non-hot spot data blocks in the SSD into the mechanical hard disc, the hot spot data blocks are data blocks of which the visited frequency is higher than that of other data blocks, and the non hot spot data blocks are data blocks of which the visited frequency is lower than that of others. According to the hybrid storage system and the hot spot data block migration method, provided by the invention, the utilization ratio of the SSD and the performance of the hybrid storage system are effectively enhanced, and meanwhile, the cost of the hybrid storage system is lowered.

Provided is an apparatus and method that can suppress deterioration in performance by scaling soft decision values for iterative detection and decoding in a Multi-Input Multi-Output (MIMO) system. The apparatus performs Iterative Detection and Decoding (IDD) and includes a detector for detecting signals received through antennas to thereby generate a first soft decision value, a decoder for decoding the first soft decision value generated in the detector to thereby produce a second soft decision value, and a scaling unit for scaling the second soft decision value based on a scaling vector, when the second soft decision value is iteratively detected and decoded.

A vehicular lockup clutch-equipped transmission control apparatus is applied to a vehicle that includes a heater apparatus for heating a cabin by heat from an engine, a transmission that transfers power between the engine and a wheel, and a heat exchanger that conducts heat exchange between the engine and the transmission. The control apparatus controls a lockup clutch that is disposed between the engine and the transmission and that mechanically connects and disconnects a path of power, in accordance with a state of operation of the vehicle. The control apparatus includes a controller that determines whether a heating capability requested of the heater apparatus is at least a first predetermined level based on a parameter related to a temperature inside the cabin. If it is determined that the heating capability requested of the heater apparatus is at least the first predetermined level, the controller restricts engagement of the lockup clutch.

An optical unit capable of freely changing the refractive power and operating with a reduced deterioration in performance, an image taking apparatus having an image taking lens using the optical unit, and an optical finder using the optical unit. The optical unit includes a lens body having an electromagnetic field generator which changes the focal length of the lens body by moving, by an electromagnetic force, a dispersoid which is dispersed in a light-transmissive dispersion medium enclosed in a container, which is light-transmissive, and which has a refractive index different from the refractive index of the dispersion medium. The optical unit also includes a focal length changing section which changes the focal length of the lens body in three steps by controlling an electromagnetic field generated by the electromagnetic field generator.

The invention discloses a wing antenna integrating structures and functions. The wing antenna comprises a wing framework, a wing cover and a control and signal processing system. The wing cover sequentially comprises, from top to bottom, an upper panel, an upper honeycomb / foaming layer, a radio frequency function layer, a lower honeycomb / foaming layer and a lower panel. Optical fiber is laid on the lower panel. Bragg gratings are arranged at intervals on each stick of optical fiber. The radio frequency function layer comprises a radio frequency circuit layer, a wave control circuit layer and a packaging framework. A liquid cooling passage is manufactured in the radio frequency function layer. The radio frequency circuit layer comprises an antenna array face composed of a plurality of antenna sub-arrays arrayed in a distribution arraying mode. Each antenna sub-array is composed of a plurality of micro-strip radiation units. The wing antenna has the advantages of reducing the weight of a plane body, improving the pneumatic performance of an aircraft, being good in heat dissipating, being capable of monitoring the deformation and the strength of the wing structure in real time and automatically compensating the influence of structure vibration and deformation on electrical performance, and ensuring the electromagnetic performance stability of the antenna in severe environments.

To provide a packet forwarding device which minimizes degradation in packet forwarding performance at the time of execution of filtering there is provided a technique in which a destination decision processing unit of a destination decision and filtering unit decides whether to execute filtering on the basis of at least one of an input interface, an input port number, an output interface, and an output port number of an input packet and a plurality of pieces of information constituting the header of the packet. A filtering unit executes filtering only for a packet for which execution of filtering is decided. The packet forwarding device with the destination decision and filtering unit need not execute filtering for all packets and can minimize degradation in packet forwarding performance caused by filtering.

The invention provides a method and system based on the real-time communication among the hybrid multi-system cores. The method comprises the following steps of when the real-time operating system collects data, filling a network application layer data packet with the data through a network application, sending the data packet to an underlying network driver through a network protocol stack, analyzing the data packet by the underlying network driver, packaging the data packet into a new data packet format, and filling a corresponding mapped shared memory data area with the data packet; afterthe filling is completed, setting a flag bit of inter-core communication, triggering inter-core interruption or inter-core notification, and notifying another operating system processor core to receive the data packet; using the processor core of the other operating system to detect and check whether the flag bit of the processor core is an inter-core notification generated by the other core or not; and if yes, in response to the interruption, obtaining data from the shared memory data area, submitting the data to a protocol stack of the user layer, and submitting the protocol stack to the user layer for processing, thereby shielding the direct operation of the user layer on the bottom layer, and realizing the data communication in a hybrid multi-system or AMP mode.

There is provided a touch-sensor-embedded display panel with reduced decrease in aperture ratio and reduced increase in frame area, with lowered power consumption and improved operation performance.A driving pixel (21) is constituted by: a thin film transistor (T1); a pixel electrode (Epix1); a driving common electrode (COM1); and a liquid crystal capacitance (Clc1) which is formed between the pixel electrode (Epix1) and the driving common electrode (COM1). A sensing pixel (22) is constituted by a thin film transistor (T2), a pixel electrode (Epix2), a sensing common electrode (COM2), and a liquid crystal capacitance (Clc2) which is formed between the pixel electrode (Epix2) and the sensing common electrode (COM2). Neither the driving pixel (21) nor the sensing pixel (22) include an auxiliary capacitance. The thin film transistors (T1, T2) have their channel layers formed of IGZO.

A solid state drive (SSD) device includes a plurality of nonvolatile memory devices and a SSD controller. The SSD controller is configured to allocate a resource of the SSD device based on workloads of a plurality of streams and to control operations of the nonvolatile memory devices. Accordingly, the resources of the SSD device are adjusted according to the workloads of the streams so that the SSD device may support a multi stream system with reducing performance deterioration.

Method and arrangement in a first radio network node for supporting transmission power adjustment of a mobile terminal and method and arrangement in a second radio network node for assisting the first radio network node in supporting such adjustment. The first radio network node and the mobile terminal are adapted to operate on a first radio access technology. The power adjustment of the mobile terminal is performed in order to reduce interference, caused by the mobile terminal, on the second radio network node. The second radio network node is adapted to operate on a second radio access technology. The method comprises obtaining an indication that the second radio network node is interfered by transmissions from the mobile terminal, obtaining values of power control parameters for adjusting the transmission power of the mobile terminal and transmitting the obtained power control parameter values to the mobile terminal, in order to enable the adjustment of the transmission power of the mobile terminal.

The invention discloses a preparation method of a dodecahedral porous Co3ZnC / C composite material. The preparation method comprises dispersing polyvinylpyrrolidone, a cobalt salt and a zinc salt in alcohol to obtain a dispersion liquid, adding 2-methylimidazole into the dispersion liquid, carrying out a stirring reaction process, standing purification and washing to obtain a precursor compound and carrying out heat treatment on the precursor compound at a temperature of 500-700 DEG C in a protective atmosphere to obtain the Co3ZnC / C composite material. The dodecahedral porous Co3ZnC / C composite material has uniform morphology, good stability and porous characteristics. The invention also discloses a use of the dodecahedral porous Co3ZnC / C composite material in a lithium ion battery. The dodecahedral porous Co3ZnC / C composite material as a negative electrode material can be used in a lithium ion battery. The dodecahedral porous Co3ZnC / C composite material guarantees a specific capacity and improves an electrode material rate capability and cycling stability. The preparation method has simple processes, realizes a low cost and has a good research prospect.

The invention discloses a method and a device for transmitting channel measurement pilot frequency, which are applicable to channel measurement pilot frequency in an LTE-A (Long Term Evolution-Advanced) system and are used for solving the problem on transmitting channel measurement pilot frequency in the LTE-A system. The mapping pattern of the pilot frequency of an original antenna port of an R8 protocol version system in two first symbols of each subframe is ensured to be unchanged by calculating the control symbols occupied by all users and sending the channel measurement pilot frequency on redundant control symbols, R8 users are compatible, and the influence on R8 protocol version users is small. The channel measurement pilot frequency provides pilot frequency information required by high-order MIMO (Multiple Input Multiple Output) and COMP (Coordinated Multi-Point), so that LTE-A users can improve single-link quality conveniently. The total number of the channel measurement pilot frequency is small, so that the expense of the pilot frequency is reduced. The channel measurement pilot frequency full bandwidth is sent in all redundant antenna ports, the measurement information of all bandwidth and all antenna ports of channel measurement can be ensured, and the throughput of the LET-A system is increased.

The invention discloses a method and a device for managing an information array. The method comprises the following steps: step S102, setting one or a plurality of thresholds of information in the information array; step S104, receiving a priority level of an information receiving task in the information array according to adjustment of the thresholds. By adopting the invention, the success ratio of sending information can be improved so that the performance of the system cannot be reduced due to information resending; response timeover is reduced so as to improve the response speed of the system and the information processing ability of embedded system information.

The invention provides crystallizer casting powder for high-aluminum steel continuous casting. The crystallizer casting powder is chemically composed of, by weight, 10-25% of SiO2, 12-25% of Al2O3, 15-35% of CaO, 1-3% of MgO, 6-10% of F, < / =3% of Na2O+B2O3, 1-4% of LiO2, < / =2% of Fe2O3, 5-10% of C and the rest impurities. As for physical and chemical properties of the crystallizer casting powder, CaO / SiO2 is 1.5-2.2, melting point is 1000-1100 DEG C, viscosity at 1300 DEG C is 0.09-0.15Pa.s. The crystallizer casting powder has the advantages of low cost and capability of effectively lowering slag-steel interface reactivity, high capability of absorbing impurities mixed in Al2O3 and capability of effectively coordinating and controlling lubricating and heat-transferring characteristics, smoothness of the process of high-aluminum steel continuous casting can be guaranteed, high-aluminum steel plate blanks which are excellent in surface quality can be cast, and sequence continuous casting can be realized.

After charging liquid to square shaped lithium ion secondary battery, the method does not close down charge opening directly, instead charges up the battery in small current for a certain time. Next, the battery is placed in vacuum chamber, which is vacuumized to negative pressure; the negative pressure is maintained for a period of time; then, pressure is released. The said step is repeated for one or two times. The vacuum chamber is vacuumized to negative pressure again, and then the negative pressure is maintained for a period of time. Under condition of the negative pressure, the charge opening is closed down. The method lightens issue of battery ballooning caused by charging procedure as well as issue of lowered battery performance caused by battery ballooning.

The invention provides a silicon carbide trench gate power metal-oxide-semiconductor field effect transistors (MOSFETs) device and a manufacturing method thereof. The device comprises an n-type silicon carbide substrate, an n-type trench, a trench gate medium, a gate contact, a source contact and a drain contact, wherein an n-type silicon carbide drift layer is arranged on the substrate, and comprises p-type silicon carbide regions with intervals; an n+ silicon carbide source region is formed between the p-type silicon carbide regions; and the n-type trench is located between the p-type silicon carbide regions and is arranged in the n-type silicon carbide drift layer below the n+ silicon carbide source region. On the basis of a vertical double-injection MOSFET structure, the surface of the trench is counter-doped with an n-type doped impurity, so that a surface accumulation layer is realized; reduction of the effective electron mobility of the surface accumulation layer of the trench caused by high-energy and large-dose ion injection and high-temperature annealing is avoided; performance degradation of the device is reduced; the anti-latch-up capacity is improved; the manufacturing method of the silicon carbide MOSFET device is simplified; and the silicon carbide trench gate power MOSFETs device is suitable for industrial production.

The invention relates to the technical field of an all-solid-state battery and particularly relates to sulfide solid electrolyte and a preparation method thereof, and the all-solid-state battery. Thesulfide solid electrolyte is mainly made of oxidant and a sulfide electrolyte raw material, wherein the oxidant is one or mixture of both of solid oxidant and gaseous oxidant. The method is advantagedin that through inhibiting decomposition of the sulfide electrolyte or forming a stable [PS3O] unit, stability of the sulfide solid electrolyte to the water at a dew point of -45 DEG C in the dry airis relatively good, performance degradation of the sulfide solid electrolyte is reduced, moreover, excellent ionic conductivity of the sulfide solid electrolyte is ensured, and the stability of the sulfide solid electrolyte to a high voltage positive pole material is improved.

The application provides an RC oscillator, including a reference voltage generation unit used for generating a reference voltage; a voltage control relaxation oscillation unit including a first constant current source and a first charge-discharge loop and a second charge-discharge loop, wherein the first constant current source is used for alternately charging the first charge-discharge loop to generate a first oscillation signal or a second oscillation signal, the first oscillation signal and the second oscillation signal are superposed to obtain a third oscillation signal, and the first charge-discharge loop and the second charge-discharge loop are symmetrical in structure; an active filter unit used for integrating the reference voltage and the third oscillation signal to obtain a fourth signal; and a voltage control unit used for comparing the fourth signal and the first oscillation signal to generate a fifth signal, or comparing the fourth signal and the second oscillation signal to generate a sixth signal.

The invention relates to an auxiliary product for metallurgy used for continuous casting of titanium-containing stainless steel in the metallurgy field, which is mainly applied in the mould powder technique of pre-melted crystallization mould of continuous casting for high titanium containing stainless steel. The materials of the invention comprise: specific used pre-melted base materials containing boron, flux materials, carbonaceous materials and additives; wherein, the flux materials comprise Li2CO3, Na2CO3, NaF, etc. The invention is characterized by good performance of accommodating and adsorbing titanium inclusion under the condition of meeting requirements for adding no carbon and reducing regrinding of traditional stainless steel; besides, after absorption of inclusion, the viscosity properties and solidification properties of the mould powder can be kept relatively stable, and compared with the import slag, the invention has the advantages of lower caking bleeding rate, casting billet with less surface defect, high anterograde of processing. Besides, the production of the invention has little slag strip; reaction in the crystallization mould is active; spreading property is good.

The invention discloses a sintered neodymium-iron-boron magnet and a preparing method thereof. The sintered neodymium-iron-boron magnet is prepared in the mode that Ce-enrichment main-phase alloy powder and low-melting-point TeHy auxiliary-phase powder are evenly mixed, sintered and subjected to three-section tempering. The mass-percent chemical formula of the Ce-enrichment main-phase alloy powder is (CexRe1-x)aFe100-a-b-cTMbBc. Re is one or more kinds of Pr and Nd, TM is one or more kinds of Co, Al, Cu, Ga, Nb and Zr, x ranges from 0.2 to 0.5, a ranges from 30 to 32.5, b ranges from 0.3 to 2.5, c ranges from 0.9 to 1.2, and Te is one or more kinds of La, Ce, Pr and Nd. The sintered neodymium-iron-boron magnet and the preparing method have the advantages that the performance reducing range caused by adding Ce is reduced, the utility ratio of Ce resources is increased, the preparing cost of sintered neodymium iron boron is saved, the Ce stacking problem is solved, the healthy-stable development of the rare earth industry is promoted, and important actual significance is achieved.

The invention provides a one-component polyurethane adhesive. The adhesive is prepared from, by weight, 40-60 parts of polyhydric alcohols, 20-25 parts of isocyanate, 0.1-0.6 part of chain extender, 9-12 parts of plasticizer, 0.01-0.1 part of catalyst, 10-15 parts of solvent, 8-10 parts of tackifier, 1-2 parts of cross-linking agent, 6-8 parts of titanium diboride and 9-10 parts of PES. The invention further provides a preparing method of the one-component polyurethane adhesive. The water resistance and heat resistance of the one-component polyurethane adhesive are high, and the one-component polyurethane adhesive is adaptable to a hygrothermal environment.

The invention discloses a time-domain parallel digital demodulation system, comprising a time-domain parallel sampling rate conversion module, a parallel matched filter module, a parallel clock recovery module, a time-domain parallel carrier recovery module and a differential decoding module, wherein the time-domain parallel sampling rate conversion module is used for converting the sampling rateof a sampling digital signal obtained by a high speed A / D converter, the parallel matched filter module is used for matched filtering the signal after sampling rate conversion, the parallel clock recovery module is used for carrying out timing recovery and re-sampling on the modulating signal after matched filtering, the time-domain parallel carrier recovery module is used for recovering the phasedifference and the frequency difference of the signal output by the parallel clock recovery module, and the differential decoding module is used for differential decoding the signal which is output by the time-domain parallel carrier recovery module and has phase ambiguity. The technical scheme of the invention can realize universal receiving demodulation with variable data rate and low cost, thus completing digital demodulation reaching up to 1200Mbps.

The invention discloses a mapping method of a channel measurement pilot frequency and a physical resource block, which are applied in an advanced long-term evolution system, and comprises the following step that: the base station is provided with one or a plurality of antenna ports adopting a common pilot frequency specified in the long-term evolution system to be as the channel measurement pilot frequency, and is provided with the channel measure pilot frequencies of other antenna parts to avoid the mapping positions of the common pilot frequency and downlink dedicated pilot frequency in the long-term evolution system. The invention can save system overhead, and can not cause large influence on performance of the user of the long-term evolution system.

The embodiment of the invention discloses a display panel and a display device, relates to technical field of display, and aims to prevent light rays reflected by a block matrix from being irradiated onto the active layer of a thin film transistor in order to delay the performance deterioration of the thin film transistor and ensure the display quality. The display panel comprises the thin film transistor and the black matrix which are arranged oppositely, a grid line and a data line, wherein the thin film transistor comprises a grid electrode, a source electrode, a drain electrode and an active layer; the grid electrode is positioned on one side, which is far away from the black matrix, of the active layer; the source electrode and the drain electrode are positioned on one side, which is close to the black matrix, of the active layer; the source electrode is positioned between the drain electrode and the grid line; the side edge, which faces away from the grid electrode, of the grid line is taken as a first edge; the source electrode is close to the drain electrode, and the side edge, which is parallel to the grid line, of the source electrode is taken as a second edge; the distance between the first edge and the second edge is greater than or equal to a preset distance D, so that light rays entering from one side of the thin film transistor are prevented from being irradiated onto the surface of the active layer after being reflected by the black matrix. The display panel is applied to manufacturing of the display device.

The invention discloses a preparation method of octahedral porous molybdenum dioxide and an application of the octahedral porous molybdenum dioxide in a lithium-ion battery. The preparation method comprises the steps of: adding trimesic acid and tetramethyl ammonium hydroxide to a solution containing a copper salt and a phosphomolybdic acid and / or phosphomolybdate for stirring to form an emulsion; transferring the emulsion into a hydrothermal reaction kettle for hydrothermal reaction to obtain a precursor compound; and putting the precursor compound into a protective atmosphere, carrying out thermal treatment at a high temperature and then washing the product to obtain a porous octahedral molybdenum dioxide material which is formed by stacking and assembling ultrafine nanoparticles, is uniform in shape and form and good in stability and has a porous characteristic. The molybdenum dioxide material is applied to the lithium-ion battery as a negative electrode material, so that the rate capability and the cycling stability of the electrode material are improved under the premise of ensuring the specific capacity; the preparation technology of the molybdenum dioxide material is simple; the cost is low; and the molybdenum dioxide material has a relatively good research prospect.

The invention discloses a dynamic cognitive network resource allocating method, and belongs to the technical field of wireless communication. The occupied situation of a master user authorization frequency band is predicted based on master user historical information and service characteristics, a cognitive base station carries out subordinate user frequency spectrum and power joint optimization allocation according to the frequency spectrum prediction information and subordinate user service requirement information, and therefore maximization of the subordinate user joint energy efficiency and minimization of the number of switching times are achieved. According to the method, the occupied state of the cognitive network master user frequency band, the subordinate user service requirement and switching cost caused by frequency band switching are comprehensively taken into consideration, the joint resource allocation is carried out based on a network energy efficiency maximization criterion, and the subordinate user joint energy optimization is achieved while the subordinate user service requirement is guaranteed and the performance drop caused by switching is reduced.

The invention discloses a method for manufacturing an afebrile array wave-guide grating based on flat-plate wave-guide movement, which comprises the following steps that a common silicon-based silica array wave-guide grating chip is divided into a first part and a second part along a cutting line for inputting a flat-plate wave guide or a cutting line for outputting the flat-plate wave guide on the array wave-guide grating chip; a temperature compensating rod spans the cutting line of the array wave-guide grating chip and is fixed with the surfaces of the first part and the second part of the array wave-guide grating chip; and the expansion and contraction of the temperature compensating rod drive the first part and the second part to move relatively, so as to compensate wavelength shift caused by the temperature and manufacture the afebrile array wave-guide grating. The method doses not adopt a substrate. The first part a and the second part b are placed on a six-axes precision fine tuning bracket to be fully and freely adjusted in six directions; the device cost is reduced; the processing steps are simplified to the maximum degree so that the manufacture of the device is easy to implement; deterioration of the performance of the device is reduced to the maximum degree; and the stability is strong.