Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

50results about How to "Recovery" patented technology

WDM-PON (wavelength-division-multiplexing passive optical network) system based on resource sharing protecting mechanism and method for protecting WDM-PON system based on resource sharing protecting mechanism

The invention discloses a WDM-PON (wavelength-division-multiplexing passive optical network) system based on the resource sharing protecting mechanism and a method for protecting the WDM-PON system based on the resource sharing protecting mechanism. The WDM-PON system based on the resource sharing protecting mechanism comprises an optical line terminal, a first feeder optical fiber, a second feeder optical fiber, a far-end node, a distributed optical fiber and a WDM-PON system, wherein the optical line terminal is connected with one ends of the first feeder optical fiber and the second feeder optical fiber, the other ends of the first feeder optical fiber and the second feeder optical fiber are connected with the far-end node which is connected with one end of the distributed optical fiber; the WDM-PON system is divided into a WDM-PON 1 and WDM-PON 2 and comprises 2N optical network units and 2N network control units, the optical network units of the WDM-PON 1 and the WDM-PON 2 are grouped pairwise and are mutually connected through two interconnection optical fibers, and the network control units of the WDM-PON 1 and the WDM-PON 2 are grouped pairwise and mutually connected. Faults of the optical fibers can be detected in time on one side of the optical line terminal, protection switching is realized by switching optical switches, and protection of all optical fibers among the optical line terminal and the optical network units.
Owner:SHANGHAI JIAO TONG UNIV SUBEI RES INST

Dairy cow postpartum nutrition enhancer premix and preparation method and application thereof

ActiveCN102326680APostpartum syndrome reliefRelieve labor stressAnimal feeding stuffAccessory food factorsVitamin CAdditive ingredient
The invention discloses a dairy cow postpartum nutrition enhancer premix and a preparation method and application thereof. In a formula, the premix comprises the following components in part by weight: 77.400 to 81.400 parts of energy matters, 8.000 to 9.000 parts of calcium source, 1.000 to 2.000 percent of magnesium sulfate, 2.000 to 3.000 parts of sodium chloride, 1.000 to 2.000 parts of potassium chloride, 2.300 to 3.200 parts of uterus restoration nutritional ingredients, 0.600 to 0.680 part of anti-parturition stress matters, 0.050 to 0.100 part of flavoring agent and 0.200 to 0.600 part of sweetener, wherein the energy matters are glucose and an energy precursor matter; the anti-parturition stress matters are vitamin E, vitamin D, vitamin C, sodium selenite and organic selenium; and the uterus restoration nutritional ingredients are motherwort herb and/or a motherwort herb extract. In the preparation method, the components are mixed uniformly according to a specific sequence toobtain the premix. The premix is mixed with water to form oral liquid, can be directly drunk by dairy cows, is convenient to use quickly and has low cost. In addition, the premix can prevent postpartum syndromes of the dairy cows or reduce the morbidity of the dairy cows, and improve the production performance and utilization age limit of the dairy cows.
Owner:光明牧业有限公司

Coordinated control method for directly driven permanent magnet synchronous generator under unbalanced and harmonic power grid

InactiveCN109378836ASuppress grid-side current fluctuationsElectromagnetic Torque Oscillation SuppressionPower oscillations reduction/preventionHarmonic reduction arrangementDistortionElectromagnetic torque
The invention discloses a coordinated control method for a directly driven permanent magnet synchronous generator (D-PMSG) under an unbalanced and harmonic power grid. The method comprises connectinga group of three inlet reactors in series to the three-phase input ends of a grid-side converter respectively; electrically connecting the grid-side converter and a machine-side converter through a DCbus capacitor back to back; connecting the D-PMSG in series to the output end of the machine-side converter to construct a permanent magnet wind driven generator set; using the permanent magnet winddriven generator set as a part of an active filter by injecting harmonic currents having equal amplitude and opposite phase to the grid side and by introducing a resonant controller to the machine side, so as to suppress the negative sequence and harmonic current introduced by an unbalanced and nonlinear load into a common coupling point when the grid voltage is subjected to unbalanced and harmonic distortion, and to suppress the electromagnetic torque oscillation caused by the pulsating power transmitted from the grid side to the machine side.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Fiber optic quantum key distribution network failure recovery method and system

The invention provides a fiber optic quantum key distribution network failure recovery method, which comprises the following steps: when a fiber optic quantum key distribution QKD network is faulty, determining a fiber optic QKD source node and a fiber optic QKD destination node corresponding to an affected service; acquiring a first target ground station in connection with the fiber optic QKD source node and a second target ground station in connection with the fiber optic QKD destination node; and using the first target ground station, a preset quantum satellite, and the second target groundstation as relay nodes between the fiber optic QKD source node and the fiber optic QKD destination node to recover the affected service corresponding to the fiber optic QKD source node and the fiberoptic QKD destination node. By utilizing the satellite-ground QKD between the quantum satellite and the ground station and combining the ground fiber optic QKD between the ground station and the fiberoptic QKD network, the method can realize the rapid recovery of the fiber optic QKD network failure in heaven-earth collaboration, which effectively improves the failure recovery efficiency of the fiber optic QKD network, and solves the problem that the current fiber optic QKD network failure is difficult to quickly respond and recover in time.
Owner:BEIJING UNIV OF POSTS & TELECOMM +1

Cutting Propagation Method of Golden Fruit Olive

The invention discloses a tinosporae capillipes cutting propagation method. The tinosporae capillipes cutting propagation method comprises the steps that 1, cuttings are prepared, half-lignified tinosporae capillipes vines are selected, a section of each stem segment with one leaf is taken to serve as cuttings for standby application; 2, a rooting water solution is prepared, namely naphthylacetic acid, indolebutyric acid and 95% alcohol are respectively selected and mixed, water is added into the mixture till the volume of the mixture is 20 times of the volume of the alcohol, and the rooting water solution is obtained for standby application; 3, cutting processing and cottage are performed, namely the portions, close to the lower ends and with the length of 1.5-2.5 cm, of the cuttings prepared in the step 1 are soaked in the rooting water solution for 30-60 minutes, the portions are taken out and dried in a shade place, and the processed cuttings are put in a sand bed in a cottage mode for culture; The tinosporae capillipes cutting propagation method is applied to tinosporae capillipes cutting propagation and seedling raising, the cutting survival rate is above 90%, the seedling shortage problem can be effectively alleviated, and protection and restoration of endangered wild resources in the natural world can be achieved.
Owner:GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS

Rescue equipment for train derailment and method of controlling rescue equipment

The invention provides rescue equipment for train derailment. The rescue equipment is arranged in the bottom of a train in a suspended manner and comprises a platform deck, a lateral moving mechanism,a lifting mechanism and a top support, wherein the lateral moving mechanism is arranged on the platform deck; the lifting mechanism is arranged on the lateral moving mechanism; the top support is connected between the lifting mechanism and the bottom of the train; and the lifting mechanism can change the distance between the platform deck and the top support to lift the train, and the lateral moving mechanism enables the lifting mechanism to move laterally along the platform deck so as to move the train laterally. By arranging the rescue equipment for train derailment in the bottom of the train the suspended manner and matching the platform deck, the lateral moving mechanism, the lifting mechanism and the top support with each other, the train is supported, lifted and moved laterally, sothat the track of the train is reassumed to finish accident rescue. Therefore, the time of mounting the equipment can be saved, so that a lot of rescue time can be saved for accident rescue, the accident rescue efficiency is improved, and accident update is avoided to the greatest extent.
Owner:德州创想机械设备有限公司

Healthcare underwear capable of preventing and treating diabetes

The invention discloses healthcare underwear capable of preventing and treating diabetes. An interlayer is arranged in the underwear; traditional Chinese medicine bags are arranged in positions, corresponding to one or more acupoints of a human body, of the interlayer; the acupoints include Guanyuan, Qihai, Yishu, Sanjiaoshu, Yangchi, Zusanli, Sanyinjiao, Feishu, Zhongwan, Weiyu, Mingmen, Shenshu, Zhongji and the like; medicines in the traditional Chinese medicine bags include rhizoma atractylodis, ligusticum wallichii, herba ephedra, rhizoma dioscoreae nipponicae, pinellia ternata, inula flowers, radix aconiti lateralis preparata, zanthoxylum bungeanum, fructus evodiae, fried semen pharbitidis, coptis chinensis, uncaria rhynchophylla, raw licorice root, polygonum multiflorum, radix trichosanthis, rhizoma anemarrhenae, sealwort, radix ophiopogonis, Chinese yams, Chinese wolfberries, winged euonymus twig, dogwood, cortex lycii radicis, bitter gourd, herba ephedra, potentilla discolor, angelica sinensis, ginseng, galangal, acanthopanax root, cinnamon, burdock, radix polygonati officinalis, astragalus membranaceus, cortex moutan, rhizoma alismatis, eucommia ulmoides, kudzuvine root, gynostemma pentaphylla, red peony root, loranthus parasiticus, rhodiola sachalinensis, selaginella tamariscina, ginkgo leaves, coix seeds, lychee seeds, radix rehmanniae, morinda officinalis and dendrobium officinale.
Owner:南安市荣兴专利技术转移中心有限公司

Efficient cultivation method for ruditapes philippinarum northern indigenous group in huanghai and bohai sea intertidal zone mud flat

The invention provides an efficient cultivation method for a ruditapes philippinarum northern indigenous group in the huanghai and bohai sea intertidal zone mud flat, and belongs to the technical field of aquaculture. The efficient cultivation method for the ruditapes philippinarum northern indigenous group in the huanghai and bohai sea intertidal zone mud flat comprises the following steps that ruditapes philippinarum seedlings are cultivated in a pond to the north of the northern Jiangsu coastal region of the China until large-size ruditapes philippinarum seedlings with the shell length notsmaller than 2.5 cm and the total wet weight not smaller than 2.5 g are obtained; in September to October every year, the large-size ruditapes philippinarum seedlings are evenly sown on the huanghai and bohai sea intertidal zone mud flat; and in the culture period, harmful organisms of the ruditapes philippinarum are intensively removed in spring and summer, culture indexes of seawater are regularly detected, and the ruditapes philippinarum is harvested after being cultured for 7-10 months. The large-size ruditapes philippinarum is bred in a huanghai and bohai sea intertidal zone, the breedingsurvival rate is greatly increased, the breeding period is shortened, the waste mud flat is recovered and utilized, and the breeding benefit is improved.
Owner:DALIAN OCEAN UNIV

Data parallel computing-oriented fault-tolerant method

The invention discloses a data parallel computing-oriented fault-tolerant method, belonging to the technical field of parallel system fault tolerance. The data parallel computing-oriented fault-tolerant method is an error recovery strategy and method for carrying out secondary division and secondary scheduling based on a data block corresponding to an error task. The data parallel computing-oriented fault-tolerant method comprises the following steps of: carrying out secondary redundant or triple redundant computing and result determination on a critical computing task; constructing a data composition structure based on a memory page scheduling strategy; and secondarily dividing based on the number of idle nodes and a fault-tolerant data block of the minimum data block. The data parallel computing-oriented fault-tolerant method can be completely applied to a fault-tolerant processing occasion of high-performance computing of parallel digital terrain analysis of large-scale mass data, such as terrain factor extraction of regular grid parallel interpolation, slope aspect parallel computing, depression filling parallel computing, and the like. The data parallel computing-oriented fault-tolerant method can be applied to high-performance computing of geographic information processing, and also can be applied to application occasions of space decision analysis and data mining based on geographic information, and the like to improve the processing efficiency.
Owner:NANJING NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products