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371results about How to "Reduce the number of cycles" patented technology

Energy control method for independent photovoltaic hybrid energy storage system

The invention discloses an energy control method for an independent photovoltaic hybrid energy storage system. The hybrid energy storage system comprises a storage battery, a super capacitor, a photovoltaic power generation unit, a DC bus and a DC load. The storage battery and the super capacitor are connected in parallel with the DC bus through respective bidirectional DC / DC converters. The photovoltaic power generation unit is connected to the DC bus through a BOOST converter. After data acquisition, an energy control processor calculates the power that should be borne by the hybrid energy storage system, and then the power passes through a first-order low-pass filter. According to limit control methods of different sections, the hybrid energy storage system, under different control conditions, achieves power distribution to the storage battery and the super capacitor, maintains the stability of the DC bus, stabilizes photovoltaic output power fluctuation, maintains in-system power balance, optimizes the work of energy storage equipment to a certain extent, and prolongs the service life of the energy storage equipment.
Owner:TAIYUAN UNIV OF TECH

Method and apparatus for splitting packets in multithreaded VLIW processor

A method and apparatus are disclosed for allocating functional units in a multithreaded very large instruction word (VLIW) processor. The present invention combines the techniques of conventional very long instruction word architectures and conventional multithreaded architectures to reduce execution time within an individual program, as well as across a workload. The present invention utilizes instruction packet splitting to recover some efficiency lost with conventional multithreaded architectures. Instruction packet splitting allows an instruction bundle to be partially issued in one cycle, with the remainder of the bundle issued during a subsequent cycle. The allocation hardware assigns as many instructions from each packet as will fit on the available functional units, rather than allocating all instructions in an instruction packet at one time. Those instructions that cannot be allocated to a functional unit are retained in a ready-to-run register. On subsequent cycles, instruction packets in which all instructions have been issued to functional units are updated from their thread's instruction stream, while instruction packets with instructions that have been held are retained. The functional unit allocation logic can then assign instructions from the newly-loaded instruction packets as well as instructions that were not issued from the retained instruction packets.
Owner:LUCENT TECH INC +1

An underwater acoustic sparse channel estimation variable step sparsity adaptive match tracking method

The invention discloses an underwater acoustic sparse channel estimation variable step sparsity adaptive matching tracking method, which fully utilizes the underwater acoustic channel sparse multipathcharacteristic and avoids the waste of frequency spectrum resources caused by the excessive number of pilots in the traditional channel estimation technology. The method does not need sparseness as apriori information, and the size of the support set is the estimated sparseness at the end of iteration by expanding the support set through step size. In addition, the signal reconstruction processis divided into several stages by combining stage idea and variable step size, the number of atoms in the support set in a certain phase remains constant, and the adjacent phases gradually expand thesupport set by different step sizes. The invention improves the recovery accuracy on the premise of not significantly increasing the calculation amount, that is, obtains a better trade-off between thereconstruction accuracy and the calculation complexity. Compared with the prior classical greedy algorithm, the invention does not need sparseness as a prior information, and the step size adaptive change can give consideration to the algorithm accuracy and the operation efficiency.
Owner:SOUTHEAST UNIV

Building method of library for detecting non-small cell lung cancer gene mutation and kit

The invention discloses a building method of a library for detecting non-small cell lung cancer gene mutation and a kit. The method includes: using tubular reaction to complete genome DNA breaking and connector connection, performing hybrid capture on connection products after amplification and non-small cell lung cancer related gene target area probes, and performing BGISEQ-500 / 1000 platform sequencing and data analysis to obtain mutation conditions. The method has the advantages that the experiment flow is optimized greatly by the tubular reaction, operation complexity and time are reduced, and the requirements on clinical sample initial amount are lowered; multiple genes and multiple sites can be detected in one step, point mutation, insertion and deletion, structural variation and copy number variation are covered, the detecting result is accurate and overcomes the defect that a PCR capture method cannot detect the structural variation in one step, and the effectiveness of the high-throughput sequencing applied to the detection of the non-small cell lung cancer gene mutation; the method is wide in coverage, high in cost performance, capable of providing a reference basis for the diagnosing, treatment and drug use performed by doctors, and the method is suitable for being popularized and used in a large-scale manner.
Owner:BGI BIOTECH WUHAN CO LTD

Open grid type gas-cooled space nuclear reactor core

The invention discloses an open grid type gas-cooled space nuclear reactor core, belonging to the technical field of nuclear reactors. The reactor core comprises a core activity zone, a core barrel, radial reflection layers and control rods, wherein the core activity zone is located in the core barrel and is composed of a plurality of fuel rods; the radial reflection layers are of a hollow cylindrical structure, are composed of an inner layer and an outer layer, are wrapped around the outer side of the core barrel and have the same height as the core barrel; the fuel rods and the control rodsare distributed in the core activity zone; the fuel rods and the control rods are positioned by upper and lower grid plates and winding wires wound around the jackets of the rods; the interior of eachfuel rod is composed of hollow cylindrical fuel pellets and filled with helium gas; the inner two ends of the fuel rod are provided with axial reflection blocks; and the reactor core and the reflection layers are cooled by a helium-xenon gas mixture. The reactor core of the invention can provide megawatt high-power electric energy for space tasks, and has the advantages of light weight and compact structure.
Owner:XI AN JIAOTONG UNIV

Active power classified distribution method for hybrid energy storage system applied to micro-grid

The invention discloses an active power classified distribution method for a hybrid energy storage system applied to a micro-grid. The active power classified distribution method is characterized in that the micro-grid hybrid energy storage system formed by a super-capacitor energy storage module, a storage battery energy storage module and an energy storage coordinating controller is arranged. The distributed method includes the following steps that 1, total active power of a hybrid energy storage target, a super capacitive SOC measured value and a storage battery SOC measured value are obtained; 2, first-level distribution is performed on the total active power of the hybrid energy storage target; 3, second-level distribution is performed based on the super-capacitor SOC measured value; 4, the second-level distribution is performed based on the storage battery SOC measured value; 5, distribution results are output to complete the active power classification and distribution. The active power classification and distribution method can effectively avoid over charging and over discharging of a super-capacitor and a storage battery, the number of times for circulation of the storage battery is reduced, service life of the super-capacitor and the storage battery is prolonged, and stability and performance indexes of the micro-grid are improved.
Owner:HEFEI UNIV OF TECH

Crane, standard knot lifting and adding system thereof and standard knot lifting and adding method

The invention provides a crane, a standard knot lifting and adding system thereof and a standard knot lifting and adding method. The standard knot lifting and adding system includes a climbing frame, the climbing frame is used for sleeving the crane tower body, the standard knot lifting and adding system also includes a lifting device, the lifting device comprises: a fixed cross beam, a piston cylinder and a movable cross beam, the fixed cross beam is arranged on the climbing frame, the fixed cross beam is provided with a first connecting structure used for in detachable connection with the crane tower body, the lower end of the piston cylinder is connected with the fixed cross beam, the movable cross beam is connected with the upper end of the piston cylinder, and the movable cross beam is provided with a second connecting structure used for in detachable connection with the crane tower body. The technical scheme of the crane can improve force conditions of the standard knot lifting and adding system in an installation process and improve the installation efficiency.
Owner:ZOOMLION HEAVY IND CO LTD

Comb spectrum generation system based on cyclic frequency shift pattern and application method thereof

InactiveCN103036621AReduce system complexityImprove flatness and stabilityElectromagnetic transmissionPhysicsVIT signals
The invention relates to a comb spectrum generation system based on a cyclic frequency shift pattern and an application method of the comb spectrum generation system based on a cyclic frequency shift pattern. The comb spectrum generation system based on the cyclic frequency shift pattern comprises an external-cavity semiconductor laser, a 3 dB coupler, a polarization controller, an intelligence quotient (IQ) modulator, a phase modulator, an optical frequency spectrum analyzer, a cosine microwave signal source, a phase shifter, an erbium-doped optical fiber amplifier, an optical filter, an adjustable optical delay line, a direct current bias supply and a section of optical fiber. Cosine radio-frequency signals, reversed cosine radio-frequency signals, sine radio frequency signals with same frequency, and reversed sine radio frequency signals with same frequency are inputted into the IQ modulator. Down-converted signals of optical carrier can be produced through adding appropriate bias voltage to a direct current electrode. The down-converted frequency is four radio frequency (RF) electrode incoming frequency. Elements of coupled seed light and the down-converted light of the optical carrier are modulated by the IQ modulator in a loop circuit. Flat comb spectrum can be obtained through reasonable gain conditions of the erbium-doped optical fiber amplifier and choices of the optical carrier bandwidth.
Owner:SHANGHAI UNIV

Taxol nanosuspension and preparation method thereof

The invention relates to the field of medicinal preparations, in particular to a taxol nanosuspension and a preparation method thereof. The taxol nanosuspension is characterized in that: a surfactant consists of poloxamer 188 and polyethylene glycol in a weight ratio of 1:1-1:3. According to the invention, the defects of low medicament loading rate, strong toxic or side effect, low stability, complex preparation process, high cost and the like in the conventional taxol preparation are overcome, and the technical breakthrough in the field is achieved; and the taxol nanosuspension has the advantages of increasing medicament content, reducing administration toxicity and production cost and improving the adaptability and compliance of a patient so as to realize clinical use.
Owner:南京百思福医药科技有限公司

Shield tunneling machine duct piece quick dismantling device

The invention discloses a shield tunneling machine duct piece quick dismantling device. The shield tunneling machine duct piece quick dismantling device comprises two lifting frames which are transversely symmetric about the axial line of a tunnel, each lifting frame is provided with a lifting mechanism, the lifting mechanisms comprise hydraulic oil cylinders, slide frames, rotary bases and supporting bases, the hydraulic oil cylinders are fixedly connected with the slide frames, two supporting frames and two rotary bases are arranged, the two rotary bases are fixed to the bottoms of the slide frames, the supporting frames are horizontally hinged to the rotary bases, telescopic oil cylinders are arranged at the bottoms of the lifting frames, and the two ends of each telescopic oil cylinder are hinged to the bottoms of the corresponding supporting base and the corresponding lifting frame respectively. The shield tunneling machine duct piece quick dismantling device can lift duct pieces with different ring widths, and the rail size, the muck delivering vehicle size and the duct piece delivering small vehicle size in the tunnel do not need to be changed; the duct pieces on the duct piece delivering small vehicle can be safely and quickly dismantled, and the duct piece delivering small vehicle and the muck vehicle do not need to be manually separated from each other; meanwhile, the duct piece delivering small vehicle can directly follow the muck delivering vehicle to be driven out of the tunnel, the marshaling train circulating frequency is reduced, and the construction efficiency is further improved.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

Method for sorting and separating ore from aluminum silicon mineral

The invention relates to a mill run separation method for the aluminium silicon mineral, in particular to a diasporite type alumyte floatation desiliconizing method. The invention is characterized in that: after grinding the original aluminium silicon mineral, directly carrying through a rougher flotation, the surfaced foam is looked upon as the ore concentrate product or enters the chosen; grading the rougher flotation underset, the coarse fraction enters the second stage milling grinding, the milling grinding products returns to the rougher flotation; the fine fraction enters the scavenging operation; the sequence of choosing underset, scavenging foam returns to the operation before. The invention has the advantages of solving the problem of the reasonable grade distribution of the milling grinding and the mill run slurry, greatly reducing the ore concentrate minuteness grade, increasing the coarse fraction, and solving the problem of high moisture level in the filter products.
Owner:GUIZHOU BRANCH CHINA ALUMINUM IND
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