122results about How to "Control scale" patented technology

A method and system is disclosed for providing a cloud storage system supporting existing APIs and protocols. The method of storing cloud storage system (CSS) object metadata separates object metadata that describes each CSS object as a collection of named chunks with chunk locations specified as a separate part of the metadata. Chunks are identified using globally unique permanent identifiers that are never re-used to identify different chunk payload. While avoiding the bottleneck of a single metadata server, the disclosed system provides ordering guarantees to clients such as guaranteeing access to the most recent version of an object. The disclosed system also provides end-to-end data integrity protection, inline data deduplication, configurable replication, hierarchical storage management and location-aware optimization of chunk storage.

Disclosed are methods and systems for improved information transfer across networks, including network protocols with invariant structure, topological addressing, and recursive network structures.

The invention provides microfluidic systems incorporating optical waveguides integrated, which can be used to optically interrogate particulate such as cells flowing through the system. The waveguides within these systems may be arranged to form optical traps, which may be used to power pumps and valves in the microfluidic systems, to trap and interrogate particles within these systems, and to sort trapped particles into different channels of microfluidic flow.

The invention provides a functional molecular marker for rice anti-blast gene Pi9 and application thereof, belonging to the field of crop molecular genetic breeding science. The invention finds out that the rice anti-blast gene Pi9 has a 10bp insertion/deletion site positioned between the gene promoter -516 and -517, wherein the nucleotide sequence is disclosed as SEQ ID NO.1; and on such basis, the invention develops a method of the functional molecular marker for gene Pi9. By detecting the functional molecular marker, the invention can accurately detect whether genomes of different rice species contain the Pi9 functional gene and detect the homozygotic state, and can be used for screening rice hybrid transformed descendant plants to enhance the breeding efficiency of the rice anti-blast material, thereby effectively controlling the size of the breeding population, obviously saving the breeding and screening cost and obtaining the anti-blast rice species containing the Pi9 functional gene.

The semiconductor device is capable of coping with speedup of operation using a low dielectric constant material film other than silicon. The base (10) formed by the substrate (11) and the low dielectric constant material film (12) whose relative dielectric constant is lower than silicon is provided. The semiconductor element layer including the MOS transistor (30) is adhered onto the surface of the base (10) for stacking. The transistor (30) is formed by using the island-shaped single-crystal Si film (31) and buried in the insulator films (15), (16) and (17). The multilayer wiring structure (18) is formed on the semiconductor element layer and is electrically connected to the transistor (30). The electrode (20) functioning as a return path for the signals is formed on the back surface of the base (10). Instead of forming the electrode (20) on the base (10), the electrodes (20A) may be arranged on the back surface of the base (10A), configuring the base (10A) as an interposer.

The invention discloses a method for preparing monodisperse emulsion and belongs to the technical field of emulsion. The monodisperse emulsion is prepared by using a tube-in-tube annular channel reactor; a continuous phase is introduced into an outer tube of the tube-in-tube annular channel reactor, a disperse phase is introduced into an inner tube of the tube-in-tube annular channel reactor, and the continuous phase and the disperse phase fully contact on micropore parts to form the emulsion; and according to the method, equipment is simple, cost is low, flux is high, and continuous operation can be realized, so that the preparation cycle can be greatly shortened, and production efficiency is improved. The emulsion prepared by the method is high in quality, stable in performance, and high dispersibility; and emulsion droplets are uniform in particle size.

The invention discloses a decision tree construction method. A rule set space is recursively divided by a rule space division based decision tree algorithm to construct a decision tree. The method comprises: constructing an evaluation function used for quantitatively calculating a storage space of the decision tree and/or the balance of the decision tree; determining to-be-divided dimensions and corresponding to-be-divided rule sets for a current node; performing pre-division of different division frequencies on the current node in different to-be-divided dimensions to calculate values of the evaluation function, corresponding to different division modes; comparing the values of the evaluation function to determine division frequencies for the to-be-divided dimensions; and dividing the current node in the to-be-divided dimensions according to the division frequencies. Compared with the prior art, the decision tree more favorable for time and space complexity can be constructed based on the method provided by the invention; and meanwhile, according to the method provided by the invention, the scale of the whole decision tree can be controlled.

The invention discloses a particle swarm algorithm-based virtual-machine deployment method under a cloud environment, and belongs to the field of resource scheduling under cloud computing environments. For solving problems of only carrying out optimization of a single objective and lacking consideration of multiple objectives; the invention provides the particle swarm algorithm-based virtual-machine deployment method under a cloud environment. According to the method, deployment mapping between virtual machines and physical machines is established at an IaaS (Infrastructure as a Service) layer. The method of deployment mapping includes: a user-oriented virtual-machine deployment method, which includes receiving an application of a user for a virtual machine, and deploying the same to an objective physical-host on the basis of an improved multi-objective-optimization particle swarm optimization algorithm of congestion degree judgment; and a platform-oriented virtual-machine dynamic-management method, which includes deploying a virtual machine to an objective physical-host, and then judging whether status of the objective physical-host is above or below a normal threshold value, anddetermine a mapping relationship of the objective physical-host and the virtual host on the basis of an improved multi-objective-optimization particle swarm algorithm of sharing degree judgment. The virtual-machine deployment method is used for deploying the virtual machines on the objective physical-hosts.

The invention discloses a molecule marking method of a rice blast-resisting gene, belonging to the field of crop molecule heredity and breeding. The method comprises the following steps: (1) taking a rice sample and extracting a genome DNA (Deoxyribose Nucleic Acid) of the rice sample; and (2) carrying out PCR (Polymerase Chain Reaction) amplification on the genome DNA of the rice sample by utilizing any one pair of molecule-marked primers in RM6091 and RM26632, carrying out electrophoresis detection on a PCR amplification product, and if a molecule-marked DNA segment with corresponding size is amplified, showing that a Pi-bdl(t) gene exists. Through rice blast-resisting gene Pi-bdl(t) molecule marking in the invention, whether thin rice as well as crossbred descendants, backcross descendants and multiple cross descendants thereof contain the gene can be detected, the resistance level of the gene on rice blast can be forecasted, the selecting efficiency of rice blast resistant materials can be greatly increased, and the breeding process for disease resistance can be accelerated.

An antiferroelectric liquid crystal display device provided with means for preventing optical transmittance or the mean value of the optical transmittance from changing in a holding period tk. Thereby, the black display state thereof is stabilized. Further, the control of a gray shades display is facilitated. Moreover, linear gray scale characteristics and high contrast are provided. Thus, in the antiferroelectric liquid crystal display device having a selection period tw and the holding period tk, the optimum holding voltage (Vh), by which the optical transmittance little changes in the holding period tk, is applied to liquid crystals.

The invention discloses a pre-fetch method of an object file system. The method comprises the steps of initializing data structures and variables of the object file system, judging whether a server receives an object reading request from a client, analyzing the object reading request if the server receives the object reading request, determining a current object and an Oid of the current object according to the object reading request, judging whether object reading request hits a cache, judging whether a timing value greater than or equal to a time threshold valve T_MAX exists if the object reading request does not hit the cache, inquiring a pre-fetch attribute table according to the Oid of the current object if the timing value does not exist, obtaining a pre-fetch attribute of the current object, executing disk reading and pre-fetch operation according to the pre-fetch attribute, modifying single-step pre-fetch information of the pre-fetch attribute table according to an overall access order array, and modifying multi-step pre-fetch information of the pre-fetch attribute table according to the overall access order array. The pre-fetch method achieves self-adaption regulation of a pre-fetch range, a pre-fetch accuracy rate is kept close to the set threshold valve, single-step pre-fetch and multi-step pre-fetch are considered, and source occupancy is controllable.

A method of providing an image for display comprises: determining a target image size in terms of first and second dimensions; processing an input image to detect a region of interest therein, the region of interest having first and second dimensions; and providing an image for display by modifying the input image having regard to the first and second dimensions of the target image size and the first and second dimensions of the region of interest in the input image. Also disclosed is corresponding apparatus and a corresponding computer program.

DRAM includes hierarchical read circuits with multi-divided bit lines, wherein a local read circuit receives an output from a memory cell through a bit line, a segment read circuit receives an output from one of multiple local read circuits through a segment read line, and a block read circuit receives an output from one of multiple segment read circuits through a block read line. Thus a voltage difference is converted to a time difference by the read circuits. In this manner, a time-domain sensing scheme is realized to differentiate high data and low data. For instance, high data is quickly transferred to a latch circuit through the read circuits with high gain, but low data is rejected by a locking signal based on high data as a reference signal. Additionally, various alternatives are described. And structures for the memory cell and layouts for the read circuits are illustrated.

The invention relates to a method for producing a photoelectrochemical microfluidic detection chip of a three-electrode system. The method comprises the following steps: coating liquid polydimethylsiloxane (PDMS) on a glass sheet and curing the PDMS to form a substrate; forming a micro-channel and corresponding work electrode pool, reference electrode pool, counter electrode pool and import/export pool from a pre-designed pattern on the PDMS by using a laser engraving method; placing the work electrodes and connecting with leads; sealing another non-etched PDMS as a cover plate by oxygen plasma processing; and finally integrating the reference electrodes and the counter electrodes to produce the photoelectrochemical microfluidic detection chip of the three-electrode system. The production method is easy to operate; the size of the micro-channel is controllable; the sealing of the microfluidic chip is realized without additional adhesive; after the sealing, the bonding is firm without leakage; and the method is applicable to photoelectrochemical detection and has the advantages of little oxygen consumption, fast detection and high flexibility.

The invention discloses a solar battery preparing method with TiO2 sensitized through Bi2S3 quantum dots. The method concretely includes the following steps that (1), TiO2 slurry is arranged on FTO glass in a knife coating mode through a knife-scraping method; (2), a TiO2 porous film is obtained through annealing; (3), a continuous ion layer is used for reaction and absorption on the TiO2 porous film to prepare the Bi2S3 quantum dots, and electrodes are formed; (4), an electrolyte is dropped in the middle of each electrode and then diffuses to a whole working part of each electrode by using the solution diffusion action; (5), the FTO glass with the platinum-plated surface is buckled on the working electrode, the platinum plated face of the FTO glass faces toward the working electrode, and the working electrode and the platinum counter electrode are clamped through a clamp to obtain a solar battery. The invention discloses a preparing method for the Bi2S3 quantum dots which serve as sensitization material to be applied to the solar battery sensitized through quantum dots. According to the solar battery preparing method with the TiO2 sensitized through the Bi2S3 quantum dots, the nontoxic Bi2S3 quantum dots are adopted as a sensitizing agent to prepare the solar battery sensitized through quantum dots.

The invention provides a method for preparing bismuth telluride quantum dots by ultrasonic technology, which comprises the steps of: 1) taking a certain amount of solid bismuth telluride powder and fully grinding it in an agate mortar. 2) Add an appropriate amount of nitrogen-methylpyrrolidone (NMP) solution to the ground powder and mix, and place the above-mentioned mixture in an ultrasonic instrument for ultrasonication for a cumulative time of 4 hours. 3) Centrifuge the suspension system after ultrasonication, and collect the supernatant liquid to obtain the bismuth telluride quantum dot solution. The present invention adopts a very simple and low-cost preparation process to successfully obtain bismuth telluride quantum dots. The obtained quantum dots have good dispersion and can fluoresce under the irradiation of ultraviolet lamps. They are expected to be used in thermoelectric power generation, thermoelectric refrigeration and sensors, etc. fields are applied.

The invention relates to a power grid anticipated fault set automatic generating method and system. The method includes the following steps that first, an anticipated fault depth of an anticipated fault set and a tide transferring threshold value of a fault influence domain are set; second, a power grid is divided into various partition areas; third, N-1 anticipated fault analysis is performed on each partition area, each anticipated switching-off device and branches with tide transfer exceeding the tide transferring threshold value before and after switching off are added to the fault influence domain, N-1 fault influence domains are formed, all the N-1 fault influence domains are analyzed, the overlapped fault influence domains are combined, and N-2 anticipated fault sets are formed; fourth, according to the anticipated fault depth, the N-m fault influence domains are circularly calculated, and accordingly, a plurality of anticipated fault sets are generated; fifth, the multiple anticipated fault sets in all the partition areas are gathered, and multiple anticipated fault sets of a whole network are formed. The method and system not only are favorable for improving the analysis effect of anticipated faults but also effectively control the scale of the multiple fault sets, the calculating efficiency is high, and the using effect is good.

A field effect transistor and method for making is described incorporating self aligned source and drain contacts with Schottky metal-to-semiconductor junction and a T-shaped gate or incorporating highly doped semiconductor material for the source and drain contacts different from the channel material to provide etch selectivity and a T-shaped gate or incorporating a metal for the source and drain contacts and the oxide of the metal for the gate dielectric which is self aligned.