148results about How to "Avoid hotspots" patented technology

The invention discloses a method for scheduling virtual machines, which belongs to the field of computer networks. The method comprises the following steps of: 1) running a physical machine monitor on each physical server for regularly collecting loads of all virtual machines and sending the loads to a virtual machine scheduler, and receiving and executing instructions sent by the virtual machine scheduler; 2) regularly judging the virtual machines with load data changes and the physical server where the virtual machines are positioned by the virtual machine scheduler; 3) adjusting the virtual machines with load data changes by the virtual machine scheduler by using bin packing algorithms to obtain the target corresponding relationship of the virtual machines and the physical servers; 4) comparing the current corresponding relationship with the target corresponding relationship of the virtual machines and the physical servers by the virtual machine scheduler to generate a virtual machine scheduling plan; and 5) scheduling the virtual machines by the physical machine monitor according to the virtual machine scheduling plan. Compared with the prior art, the invention has the effect of load balance and can also make the physical servers in an idle state dormant and further reduce the energy consumption.

Disclosed herein is a light emitting diode (LED) device. The light emitting diode device comprises a package formed with a terminal for applying an electrical signal, one or more LED chips mounted on the package such that the LED chips are electrically connected to the terminal, a lens formed to surround the LED chips on the package for changing path of light emitted from the LED chips to the horizontal direction with the difference of the refraction rates of the media, and a reflector formed on the lens for reflecting the light, emitted above the lens without being refracted in the horizontal direction at the lens, to the horizontal direction. The LED device reflects the light, which is deviated from the optical design range of the lens and emitted above the lens, back to the lens, thereby preventing the hot spot from being generated, and enhancing horizontal emission efficiency of the light.

The invention discloses a metadata managing method for splitting name space, which comprises the following steps: establishing document system; managing the established document system. Wherein, management of established document system also comprises that client establishes catalogues; client establishes documents; client executes query operation; client executes readable catalogues operation; client deletes documents; client deletes catalogues; client executes relief operation; client executes rename operation; client establishes hard links; client establishes soft links. The invention can avoid the access focus of the same catalogue while improving extensibility of metabase server.

A method of soft tissue treatment of a patient includes placing a treatment sleeve with at least one first treatment energy source onto the patient. Massage of the patient's soft tissue is provided by at least one massage unit, with the massage unit including at least two pressure changing elements applied on the patient's soft tissue. An additional or second treatment therapy, different from the massage, is provided by a second treatment energy source. The massage unit creates a pressure gradient between at least two successive elements changing a pressure value in range from 0% to 95% on the patient's soft tissue across a treated body area and stimulates body liquid flow.

An electrically driven oxygen separation assembly and method for applying an electrical potential in which the assembly has one or more tubular membrane elements. The potential is applied at two central spaced locations of a tubular membrane element and at least at opposite end locations thereof. As a result the electric current flow through the tubular membrane element is divided into two parts flowing between the two central spaced locations and the opposite end locations. Additionally, the present invention also provides an end seal to be used in connection with tubular membrane elements.

The invention discloses a method for hydrotreating heavy hydrocarbon. A hydrotreatment process comprises a pre-hydrogenation reaction zone, an up-flow hydrogenation reaction zone and a fixed bed-trickle bed reaction zone. The method comprise the following steps that: catalytic cracking slurry oil and / or catalytic cracking heavy cycle oil pass / passes through the pre-hydrogenation reaction zone; the pre-hydrogenation reaction zone adopts a fixed bed-trickle bed operation mode; both the reaction effluent of the pre-hydrogenation reaction zone and a residual oil raw material are jointly introduced into the up-flow hydrogenation reaction zone and the fixed bed-trickle bed reaction zone in turn; and the final reaction effluent is separated. The method of directly taking the catalytic cracking residual oil, the catalytic cracking heavy cycle oil and the like as fluxing oil of the residual oil raw material is changed, and the catalytic cracking residual oil and the catalytic cracking heavy cycle oil are pretreated to retard the coking of a catalyst and effectively prevent the generation of a bed layer hot point, so that stable operation of an up-flow reactor is guaranteed, the service life of the catalyst is prolonged, simultaneously the product quality is improved.

One exemplary embodiment can be a sprayer for distributing at least one fluid in a vessel. The sprayer can include a first member having a first surface and a second surface forming at least one aperture there-through. Generally, the at least one aperture is skewed with respect to a substantially vertical axis passing through a center of the first member for distributing the at least one fluid in the vessel.

Thermal energy exposed at the outer surface of an information handling system housing is managed by spreading the thermal energy across the housing X and Y axes while restricting heat transfer from the housing at the Z axis. For example, a graphene outer surface couples to an aerogel substrate strengthened by a carbon fiber laminate. The graphene spreads thermal energy that escapes through the housing across the housing outer surface to limit the impact of thermal energy at any particular location, such as proximate to the location of a processor.

The invention discloses a tree structure-based data aggregation method with reliability assurance. The aggregation method comprises the following steps: generating a tree creating module, an in-tree data aggregation module and a data detection module, and generating a tree revising module. The aggregation method adopts the tree structure to realize fast aggregation of data in the network, ensure that data can be conveniently found and used in the entire network, reduce the communications of the network in the data aggregation process and prolong the service life of the entire network; and the data detection method and the method of generating tree revise are both adopted and the phenomenons such as the damage and death of node can be monitored and found, thus increasing the accuracy and effectiveness of data transmission in the network and the reliability of the entire network.

The invention discloses a wireless sensor network unmanned aerial vehicle system communication method based on an optimization particle swarm algorithm. The method is used for a wireless sensor unmanned aerial vehicle system network composed of a mobile node unmanned aerial vehicle, a ground communication station (2) and multiple ground wireless sensor nodes (3), and comprises the following steps:(10) network region partition: the whole network region is partitioned into multiple sub-regions by using the optimization particle swarm algorithm; (20), sub-region cluster head selection: a sensornode in each sub-region computes weight sum, and selects a cluster head node; (30) next-hop access node selection: the mobile node accesses the cluster head node with the maximum residual overflow cache time, and then selects the cluster head node needing to be accessed by the next hop of the mobile node; and (40) data transmission: the unmanned aerial vehicle (1) transmits the data to the groundcommunication station (2). Through the wireless sensor network unmanned aerial vehicle communication method disclosed by the invention, the energy consumption is less, the network load equilibrium isgood, and the network life is long.

Eye-shield condensation prevention system for use in a ski goggle, dive mask, medical or testing face shield or the like, that prevents undesirable hot spots on the eye-shield and maintains constant heat, with the ability to compensate for variations in resistance encountered from one eye-shield region to another, and / or one eye-shield to another, comprising a power source, a pulse-width modulator, a microcomputer, a heating element, and a sensing circuit. The microcomputer uses the sensing circuit to sense voltage and determine a value of resistance of the heating element. The microcomputer then uses this value to adjust the duty cycle of the pulse-width modulator, and may employ a two-dimensional table in assisting calculation. Multiple pulse-width modulators may be employed that correspond to a plurality of eye-shield regions and a corresponding plurality of heating elements.

The invention discloses a method for reading distributed metadata files. After a directory is created, the directory is split into multiple directory fragments, and the multiple directory fragments are migrated to multiple metadata nodes, files which need to be written into the directory are stored in all the multiple directory fragments, when the files are read, according to the corresponding relations of identification information of the files and the directory fragments, and the directory fragments and the metadata nodes, metadata nodes stored in the files are finally determined so as to read the files, the frequency of frequently accessing the metadata nodes in which hotspot directories are located is reduced to a certain degree, the degree of hotspot of the metadata nodes is lowered, the loading pressure of the metadata nodes is reduced, and the performance of a whole metadata management system is improved. The invention further discloses a device for reading the distributed metadata files, and the device has the above same advantages.

The invention relates to a method and a system of collaborative type cache for a video-on-demand service in a collaborative type cache cluster. A data fragment of each video file is associated with an index number of a cache node, and each data fragment is cached on the cache node associated with the data fragment. A visiting request of the data fragment is oriented to the cache node assigned and associated with the data requested to visit when the visiting request of the data fragment is received, and other cache nodes can be indicated to pre-fetch a next data fragment. The method of collaborative type cache for the video-on-demand service in the collaborative type cache cluster enables each video file only to put one portion of data, improves the space utilization rate of a cache and reading hit rate, avoids the appearance of hot spot of a single server, and enhances the overall expansibility of a cache system. In addition, through a collaborative type pre-fetch technology, the problem of play jitter which can affect the quality of the video-on-demand service in the circumstance that only simple data fragment is conducted is resolved, and thus the service quality of the video-on-demand is not affected.

The invention aims at reducing the energy consumption resulting from network reconstruction and providing an expandable wireless sensor network networking method. The residual energy of nodes in a network is taken as a selection standard of candidate cluster heads; factors such as the residual energy of candidate nodes, the number of neighbor nodes of the candidate cluster heads and the value degree from each node to the candidate cluster heads are taken into consideration. When the average energy in clusters is greater than certain threshold, re-clustering does not need to be carried out in awhole network range, and the new cluster heads are only selected in the clusters. When new nodes add the network, network access permission values are introduced for judging which clusters the nodesadd. The new network access nodes send data through utilization of reserved time slots without waiting for termination of each cluster period, and the cluster heads do not need to redivide time slots.

A synchronization preparation method of syngas and metal zinc is provided. The invention relates to and belongs to the technosphere of energy source and metallurgy, in particular to a method to synchronic prepare syngas and metal zinc in a reaction process. The method has the operation that carbonate molten salt is used as reaction medium in a molten salt reaction vessel, by redox reaction of methane and zinc oxide powder, the synthesis gas of carbon monoxide and hydrogen and metal zinc are synchronously generated. The invention not only achieves the purposes of saving energy and reducing cost, but also avoids generating thermal dam and three wastes. The system simplifies the processing technique of the metal zinc and reduces the production cost; and new energy resource synthesis gas with great application value is achieved at the same time.

A mobile system and method that reform flare gas, methane, or natural gas, using air without steam, to directly produce methanol, a clean burning gasoline blend, component, and / or substitute are disclosed. The system first reforms the air-methane mixture at ambient atmospheric pressure, then compresses the resulting CO-hydrogen-nitrogen gas mixture to 600 psi, and feeds it through a methanol reactor which reacts the gas mixture directly into methanol. The nitrogen is returned by the system back to the atmosphere. Methanol is a clean burning gasoline substitute, and can be used to displace significantly costlier and dirtier petroleum-based fuel, while solving a critical problem with flaring. For example, the over 120 billion cubic feet per year that was flared in North Dakota in 2014 could be converted into over 6 million tons of methanol.

A method and apparatus reduces hot spotting in transmission clutch packs actuated by a piston with axial fingers engaging the clutch pack. The method and apparatus combine an alternative pack arrangement with the fingered actuator, the alternative pack preferably being an inverted double sided pack or a single sided pack. The friction plates may have single or double side friction layers, but a second set of plates are splined for rotation with the shaft when the friction plates and the piston are splined for rotation with the housing in which the shaft rotates.

The invention discloses a database processing method and a system. The method comprises the following steps: S1, cleaning the new service data issued by the processing, and processing the new servicedata by semicolon section; S2, processing the new service data by semicolon section. S2, selecting new service data under one or more number segments, comparing the service data in the cached databasewith the selected new service data, and judging whether there is data inconsistent with the service data in the cached database in the selected new service data according to whether the data under the main change field is consistent; S3, if there is inconsistent data, marking the inconsistent data, and storing the inconsistent data in the cache database and the database. The invention adjusts theoverall structure and design of the service system, and realizes the pre-filtering of the service data through the comparison with the cached database when the database is updated, thereby alleviating the pressure of the massive data directly into the warehouse.

The invention provides a flood irrigation type air conditioner adaptability energy-saving control system and method for a machine room or a base station. Energy-saving operation transformation for anair conditioner system of the machine room or the base station is effectively achieved by adopting an adaptability energy-saving control module, and the problem of a hot point existing in IT heating equipment is effectively solved. By monitoring the temperature / humidity in the machine room or the base station and fully utilizing the design redundancy of a fixed-frequency compressor, a fixed-frequency fan or a fixed frequency water pump of an air conditioner, the operation frequency of the compressor, the fan or the water pump is adjusted between the upper limit and the lower limit of the acceptable frequency of the compressor, the fan or the water pump, thus the system operation energy consumption of the machine room or the base station is effectively decreased under the situation withoutreplacing an air conditioner unit and system equipment, and the energy-saving operation and transformation costs of the air conditioner system of the machine room or the base station are greatly saved; and a new idea is provided for energy-saving transformation of the air conditioner of the machine room or the base station, and the energy saving and hot-point eliminating transformation costs are greatly reduced.

The invention discloses a backlight module, which comprises a light emitting device, a light guide plate, a first prism component and a second prism component, wherein a light emergent top surface of the light guide plate is provided with a plurality of parallel adjacent light guide prisms; the light guide prisms extend in light emergent direction of the light emitting device; the first prism component comprises a first substrate and a plurality of parallel adjacent first prisms which are arranged on a light emergent surface of the first substrate; the first prisms extend in light emergent direction of the light emitting device; the second prism component comprises a second substrate and a plurality of parallel adjacent second prisms; the second prisms are arranged on a light emergent surface of the second substrate; and the extension direction of the second prisms is perpendicular to the extension direction of the first prisms. By arranging the first prisms with the same extension direction (or called parallel extension directions) above the light guide plate with the light guide prisms, light with large angle in the light guide plate is not led out on the light incidence side, so that a light mixing space is expanded, a shot spot phenomenon with clear brightness and darkness on the light incidence side is avoided, and the display effect of the backlight module is improved.

The invention relates to the fields of an integrated circuit manufacturing process and layout design, and discloses an integrated circuit layout structure and a manufacturing method thereof. In order to solve the problem of too low thickness of copper metal in a broad-line region of an integrated circuit layout after chemically mechanical polishing in the prior art, the invention provides an integrated circuit layout structure and a preparation method thereof. By regularly drilling holes for broad lines and through chemically mechanical polishing, the thickness of the copper metal of the broad lines is greatly improved, and the thickness of the copper metal on the broad lines and the thin lines is uniform, so the burden of the chemically mechanical polishing is lightened, the planization capacity is improved, the hotspot problems caused by the broad lines are avoided, and the finished product rate is improved.

The embodiment of the invention relates to the field of communication, and discloses a data redistribution method, electronic equipment and a storage medium. The method comprises the following steps: adding a bucket number identifier for a to-be-stored data record, and storing the data record to a fragmentation database corresponding to the bucket number identifier of the data record according to a preset corresponding relationship between the bucket number identifier and the fragmentation database; in response to the data redistribution request, obtaining a target bucket number identifier of to-be-migrated data; and migrating the to-be-migrated data to the target fragmented database according to the target bucket number identifier, and logically performing partition storage on the data, so that the expansibility of redistribution of a large amount of data is improved, the hot spot problem caused by overlarge data volume due to limitation of a physical partition is avoided. The system reliability is improved. The data migration is carried out by taking the data record corresponding to the bucket number identifier as the basic unit, so that the performance and the quality of the data migration are ensured, the influence on services is reduced, and the availability of data redistribution is improved.

A fuel cell arrangement operable in environments that are prone to explosions including a fuel cell stack 14 that is housed in a containment vessel 15 filled with a heat equalizing fluid 26 and provided with a cooling system. The heat equalizing fluid 26 flows around all sides of the fuel cell stack 14 and prevents a direct concentrated heat transfer from the surface of the fuel cell stack 14 to the containment housing 15. The heat equalizing fluid 26 buffers and distributes local heat peaks originating from the fuel cell stack 14 and thus eliminates ignition sources.

Embodiments of the invention provide a method and system for controlling a product sales quota. The method includes the steps of for a sales product, allocating a quota of the sales product to at least two corresponding nodes in a node tree according to a preset allocation principle; for each node, when the node receives a subscription request, determining whether the node quota of the node is greater than or equal to a request quota in the subscription request, and performing subscription business processing when the node quota is greater than or equal to the request quota; when the node quota is less than the request quota, requesting the crawling of a quota from a parent node of the node, adding the quota to the node when the node quota of the parent node of the node satisfies the request requirement, and performing business processing using the quota of the node with the added quota; and when the node quota of the parent node of the node does not meet the request requirement, continuing to request the crawling of the quota from an upper level parent node of the parent node until a root node, and failing to subscribe when the node quota of the root node does not meet the request requirement.