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5792results about How to "Performance is not affected" patented technology

Method of dynamically controlling cache size

A power saving cache and a method of operating a power saving cache. The power saving cache includes circuitry to dynamically reduce the logical size of the cache in order to save power. Preferably, a method is used to determine optimal cache size for balancing power and performance, using a variety of combinable hardware and software techniques. Also, in a preferred embodiment, steps are used for maintaining coherency during cache resizing, including the handling of modified (“dirty”) data in the cache, and steps are provided for partitioning a cache in one of several way to provide an appropriate configuration and granularity when resizing.
Owner:GLOBALFOUNDRIES US INC

Apparatus and method for managing access to a memory

The present invention provides a data processing apparatus and method for managing access to a memory within the data processing apparatus. The data processing apparatus comprises a processor operable in a plurality of modes and a plurality of domains, said plurality of domains comprising a secure domain and a non-secure domain, said plurality of modes including at least one non-secure mode being a mode in the non-secure domain and at least one secure mode being a mode in the secure domain, said processor being operable such that when executing a program in a secure mode said program has access to secure data which is not accessible when said processor is operating in a non-secure mode. Further, a memory is provided for storing data required by the processor, and consists of secure memory for storing secure data and non-secure memory for storing non-secure data. The memory further contains a non-secure table and a secure table, the non-secure table being within the non-secure memory and arranged to contain for each of a number of first memory regions an associated descriptor, and the secure table being within the secure memory and arranged to contain for each of a number of second memory regions an associated descriptor. When access to an item of data in the memory is required by the processor, the processor issues a memory access request, and a memory management unit is provided to perform one or more predetermined access control functions to control issuance of the memory access request to the memory. The memory management unit comprises an internal storage unit operable to store descriptors retrieved by the memory management unit from either the non-secure table or the secure table, and in accordance with the present invention the internal storage unit comprises a flag associated with each descriptor stored within the internal storage unit to identify whether that descriptor is from the non-secure table or the secure table. By this approach, when the processor is operating in a non-secure mode, the memory management unit is operable to perform the predetermined access control functions for the memory access request with reference to access control information derived from the descriptors in the internal storage unit retrieved from the non-secure table. In contrast, when the processor is operating in a secure mode, the memory management unit is operable to perform the predetermined access control functions for the memory access request with reference to access control information derived from the descriptors in the internal storage unit retrieved from the secure table. This approach enables different descriptors to be used for the control of accesses to memory in either the secure domain or the non-secure domain, whilst enabling such different descriptors to co-exist within the memory management unit's internal storage unit, thereby avoiding the requirement to flush the contents of such an internal storage unit when the operation of the processor changes from the secure domain to the non-secure domain, or vice versa.
Owner:ARM LTD

Automatic assembling device and assembling method for valve rod sealing rings

The invention discloses an automatic assembling device for valve rod sealing rings. The automatic assembling device comprises an automatic valve rod feeding device and two sets of automatic sealing ring assembling devices, wherein the automatic valve rod feeding device sequentially moves valve rods to positions to be assembled for realizing the automatic feeding of the valve rods; after the automatic valve rod feeding device positions the valve rods and tightly presses the valve rods, the automatic feeding and ring supporting actions of O-shaped sealing rings are respectively completed by the two sets of automatic sealing ring assembling devices, in addition, the supported O-shaped sealing rings are pushed into grooves of the valve rods in the two positions to be assembled of the valve rods, and the automatic assembly of the two sealing rings is completed; finally, the assembled valve rods are conveyed and discharged. The automatic assembling device has the advantages that the assembly automation of the valve rod sealing rings can be realized, the defects of low assembly speed and automation assembly adaption difficulty of manual operation can be overcome, the product qualification rate and the assembly efficiency are greatly improved, and in addition, the work intensity, the labor and the production cost are reduced. The invention also discloses an automatic assembling method for the valve rod sealing rings.
Owner:TAIZHOU LIANFANG ELECTROMECHANICAL TECH

Efficient XML schema validation of XML fragments using annotated automaton encoding

A method and system for Extensible Markup Language (XML) schema validation, includes: loading an XML document into a runtime validation engine, where the runtime validation engine includes an XML schema validation parser; loading an annotated automaton encoding (AAE) for an XML schema definition into the XML schema validation parser; and validating the XML document against the XML schema definition by the XML schema validation parser utilizing the annotated automaton encoding. Each XML schema definition is compiled once into the AAE format, rather than being compiled each time an XML document is validated, and thus significant time is saved. The code for the runtime validation engine is fixed and does not vary depending on the XML schema definition, rather than varying for each XML schema definition, and thus space overhead is minimized. Flexibility in the validation process is provided without compromising performance.
Owner:IBM CORP

Automatic assembly device and method of O-type sealing ring

The invention discloses an automatic assembly device of an O-type sealing ring. The automatic assembly device comprises a ring loading and supporting module and a ring moving and releasing module. The ring loading and supporting module forms a feeding station and a ring supporting station, and when a loading device of the O-type sealing ring is located at the feeding station, the O-type sealing ring is delivered to the loading device of the O-type sealing ring by a feeding device of the O-type sealing ring. A loading needle-shaped air cylinder drives the loading device of the O-type sealing ring to move to the ring supporting station, the ring supporting motion is carried out on the O-type sealing ring by a ring supporting device, the O-type sealing ring is delivered to the ring moving and releasing module by the ring supporting device, the ring moving and releasing module enables the supported O-type sealing ring to be delivered to a ring releasing station from the ring supporting station, the ring moving and releasing module breaks away from the supported O-type sealing ring, the supported O-type sealing ring is sleeved at the position of a groove of a workpiece to be assembled, and automatic assembly between the workpiece and the O-type sealing ring is achieved. According to the automatic assembly device, assembly automation of the O-type sealing ring can be achieved, the qualified rate and the assembly efficiency of products are greatly improved, the labor strength is relieved, and the production cost is reduced. The invention further discloses an automatic assembly method of the O-type sealing ring.
Owner:TAIZHOU LIANFANG ELECTROMECHANICAL TECH

Normal-temperature synthesis method for polycarboxylic acid water-reducing agent

The invention discloses a normal-temperature synthesis method for a polycarboxylic acid water-reducing agent, and belongs to the field of cement concrete water-reducing agents. The water-reducing agent is prepared by the following steps of: copolymerizing polyoxyethylene ether monomer or polyoxyethylene ester monomer a containing unsaturated double bonds, unsaturated monocarboxylic acid and derivative monomer thereof b, unsaturated dicarboxylic acid c and unsaturated sulfonic acid or salt monomer thereof d in aqueous solution under the action of an oxidation reduction initiator, and finally neutralizing the solution by using alkali solution to obtain the water-reducing agent. The reaction can be performed at room temperature by adopting an oxidation reduction initiating system, and the appropriate reaction temperature is between 5 and 30 DEG C; and the synthesis process does not need heating, so energy is saved, and high-temperature side reaction is effectively controlled. The prepared polycarboxylic acid high-performance water-reducing agent has the characteristics of high water-reducing rate and good collapse protecting performance. The water-reducing agent has wide application range, and the method has low production process requirement and is suitable for industrialized large-scale production.
Owner:BEIJING UNIV OF TECH

Method for MTC UE to have access to LTE system and evolution base station

Disclosed are a method for a machine-type communication user equipment (MTC UE) to access a long term evolution (LTE) system, an evolved base station and a terminal. By configuring configuration information about a physical random access channel (PRACH) for the MTC UE, the evolved base station recognizes the MTC UE by means of the position of a preamble sequence of random access by the PRACH, and uses a specific transmission mode to send to the MTC UE a random access response (RAR) and a contention resolution message, enhancement processing being performed on the sending of the RAR and the contention resolution message. The present invention solves the problem that in the process of MTC UE randomly accessing an LTE system, the MTC UE cannot receive all control information about a physical downlink control channel (PDCCH) sent by the system in a large-bandwidth manner, an RAR and a contention resolution message cannot be received in the random access process and the success rate of random access is seriously affected; and on the basis of not affecting the performance of an LTE system, the present invention greatly reduces the cost of an LTE-based MTC UE, and promotes the evolution of an MTC service from a GSM system to an LTE system.
Owner:苏州医疗器械产业发展集团有限公司

Intelligent wristband and adaptive method thereof

The invention relates to an adaptive method of and intelligent wristband. Whether the intelligent wristband is in an off state or a worn state is judged according to operation data, heart rate data and blood oxygen saturation data; when the intelligent wristband is in the off state, an operation sensing module and a control unit are switched into a power saving mode, and power of other modules except for the operation sensing module and the control unit is switched off; when the intelligent wristband is in the worn state, an operation sensing module, a heart rate sensing module and a blood oxygen saturation sensing module are switched into a normal operating mode, respectively detect the operation data, the heart rate data and the blood oxygen saturation data, and store the data to a storage unit. Thus, adaptiveness of the off state and the worn state of the intelligent wristband is realized, operation is facilitated and simple, frequent operations during usage of the intelligent wristband are avoided, user experience is improved, battery power is saved, and service life of the intelligent wristband is prolonged.
Owner:DESAI ELECTRONICS HUIZHOU

Preparation method of star polycarboxylic acid high-performance water reducing agent

ActiveCN102887979AExtended Dionon Design-Structure-PropertyExpanding the theoretical connotation of the design-structure-performance of moleculesWater reducerPollution
The invention relates to a preparation method of a star polycarboxylic acid high-performance water reducing agent. Polybasic alcohol and (methyl) acrylic acid used as main raw materials for esterification are esterified and polymerized to prepare the star polycarboxylic acid high-performance water reducing agent material: the (methyl) acrylic acid and polybasic alcohol used as reactants are esterified under the action of a catalyst to firstly prepare a star polymerizable active terminal, and free-radical polymerization reaction is carried out with unsaturated polyethenoxy ether, molecular weight regulator and unsaturated carboxylic acid monomer under the action of an initiator to prepare the star polycarboxylic acid high-performance water reducing agent. The invention is easy to control, and has the advantages of high polymerization degree, low cost and no pollution; the esterification reaction is carried out form an active core, and the free-radical polymerization is carried out to generate the chain arm, thereby implementing the polycarboxylic acid high-performance water reducing agent in a star molecular structure; and under the condition of common doping amount and low doping amount, the star polycarboxylic acid high-performance water reducing agent has better cement paste flowability and holding capacity than the traditional linear and comb polycarboxylic acid water reducing agents, and has favorable cement adaptability and concrete application performance.
Owner:GUIZHOU DR SHI TECH

Preparation method of super-retarding type polycarboxylate superplasticizer

The invention discloses a preparation method of a super-retarding type polycarboxylate superplasticizer. The super-retarding type polycarboxylate superplasticizer comprises a copolymer and water serving as a solvent, wherein the copolymer comprises an unsaturated polyether macromonomer, an unsaturated carboxylic acid / anhydride mini-monomer, an unsaturated sulfonic acid mini-monomer and an unsaturated phosphonic acid mini-monomer; the pH is 6-7. According to the preparation method, a phosphonate structure capable of retarding is introduced into a water reducer molecular structure; the prepared super-retarding type polycarboxylate superplasticizer can be directly applied to the concrete which needs a relatively long setting time, and thus the process of compounding a retarder can be saved, the production efficiency can be improved, the obtained product is uniform and stable, and abnormal concrete setting time can be avoided.
Owner:KZJ NEW MATERIALS GROUP CO LTD

Preparation method of lithium titanate-graphene combination electrode material

The invention relates to a preparation method of lithium titanate-graphene combination electrode material, belonging to the field of electrochemical power source; in the invention, the lithium titanate and graphite oxide are mixed and are prepared into titanate-graphene combination electrode material by heating under inert atmosphere; in the synthesized lithium titanate-graphene combination electrode material, metallic lithium is used as the cathode for preparing a battery, and the first charging and discharging capacity exceeds 186mAh / g when 10C charging and discharging is carried out; after 100 circles of the charging and discharging are carried out, the discharging capacity is higher than 116mAh / g. the method in the invention has low cost, and simple and flexible preparation procedures, and is suitable for industrial large-scale production. High multiplying power of the prepared titanate-graphene combination electrode material has good performance, and the combination electrode material has high specific capacity and can be widely applied to lithium ion batteries of various kinds of potable electronic equipment and various electric motors.
Owner:SOUTH CHINA UNIV OF TECH

Liquid accelerator for sprayed concrete and preparation thereof

The invention relates to a liquid accelerator for shotcrete and a method for preparing the same. The liquid accelerator is prepared from the following components in percentage by weight: 25 to 70 percent of aluminum sulfate, 0 to 8 percent of metal fluoride, 1 to 10 percent of amine substance, 0.5 to 7 percent of pH regulator, 0.01 to 1 percent of thickening agent, and the balance being water. The method for preparing the liquid accelerator comprises the following steps: firstly, dissolving the fluoride into the water; secondly, adding the amine substance to the mixture and heating the solution to a temperature of between 40 and 80 DEG C; thirdly, adding the aluminum sulfate to the solution to perform heat preservation reaction until the solution becomes a uniform liquid; and fourthly, adding the pH regulator and the thickening agent to the uniform liquid and stirring the mixture evenly to finally obtain a uniform liquid substance which is the liquid accelerator for the shotcrete. The liquid accelerator is free from corrosion, has no penetrating odor, has good storage stability so that the phenomena of deposition, crystallization and the like do not appear after the storage of more than 6 months at a temperature of between 0 and 35 DEG C, and does not influence the effect in practice. Using the liquid accelerator with lower mixing proportion (5 to 8 percent), cement can be initially set within 4 minutes and finally set within 10 minutes, and the strength of cement mortar within one day is more than 10 MPa and the storage rate of the strength within 28 days is more than 100 percent.
Owner:JIANGSU SUBOTE MATERIAL

Acquisition, collection and processing system for continuous precision tracking of objects

A system and method autonomously and precisely track objects moving along a known course. The objects include, for example, racing horses, other racing animals, or racing vehicles. The system and method utilize modern satellite navigation satellite systems, signal processing, radio communications systems and computer processing to acquire and analyze performance data of the moving objects during competitions and during training and practice. The data acquisition is performed continuously at a rate of at least 1 Hz during the competition, training or practice even in the presence of objects which affect the quality of the signals received from the satellite system.
Owner:TECHNAUMICS
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