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32results about How to "Flexible resources" patented technology
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Heterogeneous mobile communication network power control method
ActiveCN102905356AImprove performanceReduce mutual interferencePower managementEnergy efficient ICTPower compensationMacro base stations
The invention relates to a heterogeneous mobile communication network power control method. In one embodiment, a method used in a heterogeneous mobile communication network comprising neighboring macro base stations and low-power nodes is provided and include steps of I, determining an acceptable interference value by the macro base station according to average interference noise level of a physical uplink shared channel; II, sending the acceptable interference value to a low-power node from the macro base station via an X2 interface or an air interference; III, determining uplink transmission power compensation factor by the low-power node; and IV, determining uplink transmission reference power by the low-power node according to the acceptable interference value of the neighboring macro base stations. By the methods in different technical schemes, flexible and reasonable power control or resource scheduling of the heterogeneous mobile communication network can be realized, inter-cell interference especially inter-cell interference of heterogeneous base stations is lowered, and integral performance of the heterogeneous mobile communication network is improved.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD
Method and device for cooperative control of multiple trains
PendingUS20220055672A1Reduce trainingGuaranteed convergenceGeometric CADTraffic regulationDynamic modelsControl system
Embodiments of the present disclosure provide a method and a device for cooperative control of multiple trains. The method includes: S1, establishing a train dynamic model of urban rail transit; S2, modeling a train control system of urban rail transit based on train-to-train communication; S3, constructing, according to the dynamic model and a control system model, an optimized control target which comprehensively considers distance convergence and speed convergence of train formation; and S4, cooperatively controlling, on the basis of an artificial potential field method and Kalman filtering and according to the optimized control target, the multiple trains. The present disclosure is capable of effectively shortening a train headway.
Owner:BEIJING JIAOTONG UNIV
Multi-service isolation method for power wireless private network system
ActiveCN109618413ARealize full isolationMeet the needs of air interface isolationTransmission monitoringWireless communicationResource poolFrequency spectrum
The invention relates to a multi-service isolation method for a power wireless private network system. The method comprises the following steps: scanning frequency resources and counting interferences, configuring control and data channel resource pools, broadcasting the service list and channel resources, knowing randomly accessed resource pools, establishing a connection and reporting the service ID, and configuring base station control and data channel resources. The method adopts the spectrum sensing technology to obtain the frequency use and interference situation in the spectrum range of230 MHz to effectively evaluate interference levels of each frequency sub-band, requires timely avoiding when the frequency point is used and the interference is large, dynamically selects non-interference or less-interference sub-bands. updates the allocatable frequency resources, allocates dedicated resources for high-priority services, configures multiple transmission resource pools that are physically isolated from each other for use of different types of services, and supports flexible configuration of multiple transmission resource pools to adapt to regional differences in spectrum resources and terminal distribution differences to improve resource utilization efficiency.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Intelligent management system
ActiveCN109905423AFlexible resourcesFlexible schedulingBiological neural network modelsCharacter and pattern recognitionInto-structureIntelligent management
The invention discloses an intelligent management system, which is used for monitoring equipment and comprises a private cloud platform, a resource scheduling unit and a public cloud platform, The private cloud platform is arranged locally and comprises a first unified storage unit and an analysis network unit; The public cloud platform comprises a second unified storage unit and a training cluster; The resource scheduling unit is used for data interaction between the private cloud platform and the public cloud platform; The analysis network unit analyzes the data of the monitoring equipment and converts the unstructured data of the monitoring equipment into structured data; Wherein the training cluster is used for training a deep neural network cluster meeting business requirements and comprises a learning framework and a learning algorithm library; The first unified storage unit and the second unified storage unit are used for monitoring equipment and analyzing information storage ofthe network unit; The invention provides an intelligent management system capable of storing, analyzing and retrieving a large amount of monitoring equipment information.
Owner:上海仪电(集团)有限公司中央研究院
SDN network bandwidth control method and SDN network bandwidth control system
InactiveCN104486254AAvoid congestionAvoid redundancyData switching networksControl systemTime segment
The invention provides an SDN network bandwidth control method and an SDN network bandwidth control system. The SDN network bandwidth control method comprises the following steps: setting one or more time slots, wherein each time slot is formed from beginning time to ending time; setting one or more node ranges, wherein each node range is formed from one beginning network node address to one ending node network address; setting a restricted bandwidth value corresponding to each of the time slots and / or the node ranges; obtaining current time, and determining whether the current time is located in the set time slots; obtaining current node, and determining whether the current node is located in the set node ranges; distributing bandwidth according to the restricted bandwidth value distributed in the current time where the time slot is located and the current node where the node range is located. Through software implementation and low cost, time-division and node-division bandwidth distribution is carried out according to the difference of different applications in corresponding positions of preset time slots and node ranges, so that the resources are flexibly distributed, network congestion and network redundancy are prevented, and the bandwidth availability ratio is effectively improved.
Owner:PHICOMM (SHANGHAI) CO LTD
Method for transmitting data in multiple antenna system
ActiveUS20110211539A1Flexible resourcesSpatial transmit diversitySecret communicationTelecommunicationsControl channel
A method of transmitting data in a multiple antenna system includes transmitting a precoding matrix index (PMI) of a first user through a control channel for the first user, and transmitting the PMI of the first user and a PMI of a second user through a data channel for the first user. Effective data decoding is possible regardless of whether radio resources to be allocated to multiple users are partially or entirely allocated to the users.
Owner:LG ELECTRONICS INC
Optimal scheduling method for providing standby auxiliary service by controllable load cluster
ActiveCN112529271AAbundant resourcesMany flexible resourcesForecastingMarketingElectricity priceOptimal scheduling
The invention discloses an optimal scheduling method for providing standby auxiliary service by a controllable load cluster. The method comprises the following steps: 1, collecting operation parameters of each controllable load in the load cluster; 2, determining the flexible characteristics of each controllable load according to the operation parameters obtained in the step 1, and constructing anoperation constraint and adjustment capacity model of each controllable load; 3, obtaining electricity price data of each time period of the day-ahead whole day; 4, with the models and the data obtained in the step 2 and the step 3 and with the minimum total cost of the controllable load cluster as the target, establishing an optimization model of controllable load cluster operation and providingstandby capacity; 5, enabling a controllable load aggregator to provide a standby for the power grid and participates in the centralized market according to the result of the step 4, and after marketclearing is completed, acquiring a clearing result which comprises the electricity price, the standby capacity price and the standby capacity needing to be provided in each time period; and distributing the standby capacity to each controllable load.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
Rapid treatment method for controlling ground surface settlement caused by stratum funnel of large-diameter shield construction
ActiveCN111878084AImprove securityEasy constructionMining devicesTunnelsStructural engineeringSurface construction
The invention discloses a rapid treatment method for controlling ground surface settlement caused by sudden stratum funnel of large-diameter shield construction. The method comprises the following steps of Exploring the range of the stratum funnel, investigating interval buildings, performing ground monitoring, reinforcing soil below the ground buildings through layer-by-layer deep hole grouting,performing pre-grouting reinforcement on a tunnel and the stratum funnel above the tunnel, and detecting the reinforcement effect. According to the steps, disturbed soil under the building is vertically drilled from the ground for layered grouting reinforcement, a water outlet channel at the bottom of the stratum funnel is sealed and blocked from bottom to top by adopting a grouting process, and besides, the reinforcement effect is inspected by combining multiple modes, so that the continuous safety and stability of the ground building and the tunnel are ensured. The method can solve the problem of ground surface settlement caused by the sudden stratum funnel of large-diameter shield construction, and overcomes the engineering difficulties of large constraint of early-stage exploration means and settlement damage of dense and old buildings on the ground caused by sudden unfavorable geology shield water inflow.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD +1
Wireless resource scheduling method
ActiveCN104822181AImprove collaborationSolve data transmission delayWireless communicationAccess networkControl layer
The application discloses a wireless resource scheduling method. The method is characterized in that the method comprises: a wireless access network is divided into three layers including a physical facility layer, a multi-level control layer, and a center management layer. The physical facility layer includes wireless access points (AP). The multi-level control layer contains at least two levels of control modules; each control module manages a corresponding AP management set; each control module in an activation mode carries out physical resource and wireless resource scheduling on users in a user centralization unit according to a corresponding strategy; and according to the set levels, the control module with the higher level distributes the resources to the control module with the lower level when a set condition is met. The center management layer is formed by a global management entity that is used for deciding state operations and distribution operations of all control modules in the multi-level control layer. On the basis of the technical scheme disclosed by the application, problems of data transmission delay and transmission bottleneck and the like in the large-scale collaborative network can be solved, thereby enhancing the collaborative performance of the network and realizing flexible resource division and management.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Lagerstroemia indica seedling cold storage and high temperature season planting method
The invention provides a lagerstroemia indica seedling cold storage and high temperature season planting method. The method comprises the steps of conducting cuttage breeding production on lagerstroemia indica seedlings in the lagerstroemia indica seedling growth period; digging out the lagerstroemia indica seedlings and binding the lagerstroemia indica seedlings according to bundles in the lagerstroemia indica seedling dormant period; after the lagerstroemia indica seedlings are subjected to sterilization, preservation, water retention and simulation temporary planting, covering the lagerstroemia indica seedlings with plastic film and then putting the lagerstroemia indica seedlings in cold storage. By means of the lagerstroemia indica seedling cold storage and high temperature season planting method, by conducting cuttage breeding production on the lagerstroemia indica seedlings in the growth period, covering the lagerstroemia indica seedlings with the plastic film and putting the lagerstroemia indica seedlings in cold storage after conducting the sterilization, the preservation, the water retention and simulation temporary planting on the lagerstroemia indica seedlings in the dormant period, the lagerstroemia indica seedlings can be transplanted in the high temperature season, soil ball transplanting is not needed, the transplanting survival rate is increased, the transplanting cost is lowered, cross-region pollution of diseases and insects can be prevented, soil resources are protected, so that when lagerstroemia indica is transplanted, requirements on time, climate andtransportation conditions are flexible, and the transplanting cost is saved.
Owner:黄财权
User equipment, control method thereof and network side device
ActiveUS10367613B2Reduce complexityMore resourceTransmission path divisionSignal allocationControl channelUser equipment
A user equipment, a control method thereof and a network side device are provided in the present disclosure. The control method includes: indicating configuration information of a subband to be configured to a user equipment via a common control channel of a basic subband, such that the user equipment can use the subband to be configured according to the configuration information, wherein the basic subband is a subband to which the user equipment has access, and the subband to be configured comprises any subband within a bandwidth resource. The above method can support the flexibility of subband configuration.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD
Automatic driving vehicle-mounted multi-target coupling identification and tracking method under heterogeneous traffic flow
InactiveCN112215071AEnsure correctness and validityReduce memory usage and switch energy consumptionCharacter and pattern recognitionNeural architecturesIn vehicleResource assignment
The invention relates to an automatic driving vehicle-mounted multi-target coupling identification and tracking method under heterogeneous traffic flow, and the method comprises a step of establishinga vehicle-mounted embedded application program resource scheduler, and comprises the steps: carrying out the model pruning and restoration of a driving scene identification model; establishing a resource allocation framework for supporting the dynamic state of the deep learning model application program; and establishing a deep learning model to run a resource allocation scheduler, flexibly allocating resources to the deep learning model running concurrently through the resource scheduler, and outputting an optimized scheduling scheme. Memory occupation and switching energy consumption of thedeep learning model on the mobile vision device can be reduced, flexible resource allocation and accuracy balance are provided, processing delay is reduced, multi-target recognition efficiency of anautomatic driving automobile is improved, automobile-road cooperation processing is more timely and accurate during automatic driving of the automobile, and the safety of the automatic driving automobile and the application prospect in the traffic field are further improved.
Owner:HUALAN DESIGN GRP CO LTD +1
A drug-sensitive slat and preparation method thereof
ActiveCN105219636BEasy to observeFlexible resourcesBioreactor/fermenter combinationsBiological substance pretreatmentsDrugs sensitivityPharmaceutical drug
The invention relates to a drug sensitive batten which comprises a drug sensitive batten body, as well as at least 12 concave holes which are arrayed in a column, wherein the same antibacterial drug with gradient concentration subjected to doubling dilution is added into the 12 concave holes respectively; the gradient concentration subjected to doubling dilution comprises an MIC explanation standard and a quality control allowable range; the drug sensitive batten further comprises a drug name identification area and drug concentration identification areas. The invention also provides a preparation method of the drug sensitive batten. The drug sensitive batten can be independently used without an instrument, and is flexible in application; the standard operation is adopted, and drug sensitivity results are accurate and reliable; the MIC value of drugs can be measured, and the requirements of hospitals for daily indoor quality control can be met; the operation is simple and convenient, free combination can be realized as required, and the research and use are facilitated.
Owner:BEIJING XINJI JINNUO MEDICAL EQUIP CO LTD +1
Internet data management method
InactiveCN103051704ASolve space problemsSolve stressData switching networksData managementCloud computing
The invention relates to an Internet data management method, which includes the following steps: a user applies to a system for server resource; the system verifies the resource status; the system preallocates the resource to the user; the user pays; and the system officially launches the resource to the user. The method not only releases the current pressure on the space and resources of an Internet data center, but also makes full use of the advantages of cloud computation, and can satisfy the increasing demand of enterprises and individuals with less cost and more flexible resources.
Owner:JIANGSU LEMAIDAO NETWORK TECH
Method for transmitting data in multiple antenna system
ActiveUS8335194B2Flexible resourcesSpatial transmit diversitySecret communicationTelecommunicationsControl channel
Owner:LG ELECTRONICS INC
Education resources sharing method and system based on education cloud platform
PendingCN113742306AEnhance layeringEffective teachingDigital data information retrievalResourcesDynamic learningResource management
The invention belongs to the technical field of education information sharing, and particularly relates to an education resources sharing method and system based on an education cloud platform, and the system comprises a teacher resources system which comprises a teaching plan resource unit, a test paper exercise resources unit, an education resources management unit and a teaching task design guidance unit. The teaching plan and learning plan resource unit and the test paper and exercise resource unit are used for executing and providing curriculum fragmentation resources such as personalized teaching plans, learning plans, synchronous materials and test paper and exercises, and the education resources management unit is used for executing and integrating education resources obtained from a network platform and a user platform. And the teaching task design guidance unit is used for executing intelligent lesson preparation and realizing personalized teaching, is reasonable in structure, and provides a dynamic learning environment which makes teaching more effective, makes learning more effective, has no fall in regions, is more friendly globally and can cultivate higher-level ability of students in the use process.
Owner:无锡新格科技集团有限公司
Resource allocation management method and system
PendingCN110781004AReduce complexityImprove maintainabilityResource allocationData switching networksResource poolResource assignment
The invention discloses a resource allocation management method and system. The allocation management method comprises the following steps: creating a plurality of virtual resource pools and a plurality of physical resource pools; establishing a corresponding relationship among the service, the virtual resource pool and the physical resource pool; and allocating the resources in the physical resource pool to each service through the virtual resource pool. By simplifying the management of the resource pool in the system software, the business and the resource pool management are decoupled, thecomplexity of business function resource management is reduced, the maintainability is improved, and meanwhile, more flexible resource allocation and management are provided.
Owner:SUZHOU CENTEC COMM CO LTD
A method for balancing the load of a game server
InactiveCN109274713AFlexible allocationFlexible resourcesVideo gamesTransmissionResource managementClient-side
The invention relates to the technical field of network server communication, in particular to a method of balancing the load of a game server, which includes the following steps, Monitoring load levels of multiple servers in the server list in real time, When the load level of the server is greater than the first threshold, the load level is Included in overload server list, When the load level of the server is less than the first threshold, the load level is included in a light load server list, the light load server information is sent to the client, and a communication connection is established. The method not only can avoid the overload of individual servers to affect the game experience, but also can release resources on another serv when the load of the server is low, thereby realizing flexible user allocation and resource management among the servers.
Owner:宏诚盛世(天津)网络科技有限公司
Method and device for allocating physical resources
InactiveCN107690187AConvenient ArrangementFlexible resourcesWireless communicationTelecommunicationsCarrier signal
The invention discloses a method and a device for allocating physical resources. The method comprises the following steps: acquiring information of transmitting units in the physical resources, wherein the information of the transmitting units comprises types and combining manners of the transmitting units, the types of the transmitting units comprise uplink transmitting units and downlink transmitting units, and the combining manners comprise a manner of combining all uplink transmitting units, a manner of combining all downlink transmitting units or a manner of combining the uplink transmitting units and the downlink transmitting units; and allocating the resources in each transmitting unit according to a preset resource allocating rule, wherein the preset allocating rule is used for allocating resources spaced by different subcarriers in each transmitting unit. Through adoption of the method and the device, uplink and downlink resource allocation can be performed more flexibly; physical resources spaced by different subcarriers are coordinated; and different types of service data can be arranged conveniently.
Owner:BEIJING XINWEI TELECOM TECH
An apparatus and method for resource allocation in a communication system
InactiveCN1675956BLarge capacityEffective resource distributionRadio transmission for post communicationWireless communicationHandoff controlCommunications system
The invention relates to a system for allocating resource in a communication system. A handover control subsystem (401) comprises a distribution profile processor (401) determining a distribution profile for a plurality of resource categories. Specifically, a preferred probability for handing over to different frequency bands is determined in response to mobile capabilities, cell loading and otheroperational conditions. The handover control subsystem (400) further comprises a random number generator (403) for determining a stochastic value for a subscriber unit. A handover controller (409) alocates a resource from the categories of resources dependent on a preferred category selected from the distribution profile and the random number. Thereby a distribution of resources associated with the distribution profile is obtained. The invention is particularly applicable to cellular communication systems such as GSM or UMTS.
Owner:GOOGLE TECHNOLOGY HOLDINGS LLC
High-speed ascending access data of time division code division multiple access system and its signal transmission method
InactiveCN101132230BReduce adverse effectsImprove resource utilizationError prevention/detection by using return channelForward error control useTime division multiple accessAutomatic repeat request
Owner:ZTE CORP
Resource management method, device and system for indoor DAS
InactiveCN106921981AIncrease network capacityFlexible configurationNetwork traffic/resource managementNetwork planningRadio unitRadio frequency
The invention provides a resource management method, device and system for an indoor distributed antenna system (DAS), and solves problems that a single remote radio unit (RRU) has a low network capacity and the network resource cannot be flexibly configured in the existing DAS. The resource management method comprises: configuring multiple radio receiving and transmitting channels according to a requirement of an indoor network coverage amount; and according to a preset resource allocation rule, allocating a base band resource to the multiple radio receiving and transmitting channels, and instructing the multiple radio receiving and transmitting channels to convert the base band resource into a radio resource and then transmit the radio resource to a user. According to the preset resource allocation rule, the base band resource is allocated to the multiple radio receiving and transmitting channels, thereby largely increasing the network capacity, implementing flexible configuration of the multiple radio receiving and transmitting channels, and helping network optimization to be more flexible and convenient.
Owner:ZTE CORP
A multi-service isolation method for electric power wireless private network system
ActiveCN109618413BRealize full isolationMeet the needs of air interface isolationTransmission monitoringWireless communicationResource poolFrequency spectrum
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Heterogeneous mobile communication network power control method
ActiveCN102905356BImprove performanceReduce mutual interferencePower managementPower compensationMacro base stations
The invention relates to a heterogeneous mobile communication network power control method. In one embodiment, a method used in a heterogeneous mobile communication network comprising neighboring macro base stations and low-power nodes is provided and include steps of I, determining an acceptable interference value by the macro base station according to average interference noise level of a physical uplink shared channel; II, sending the acceptable interference value to a low-power node from the macro base station via an X2 interface or an air interference; III, determining uplink transmission power compensation factor by the low-power node; and IV, determining uplink transmission reference power by the low-power node according to the acceptable interference value of the neighboring macro base stations. By the methods in different technical schemes, flexible and reasonable power control or resource scheduling of the heterogeneous mobile communication network can be realized, inter-cell interference especially inter-cell interference of heterogeneous base stations is lowered, and integral performance of the heterogeneous mobile communication network is improved.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD
Resource publishing and obtaining method, device and equipment
PendingCN111209022AFlexible deploymentFlexible resourcesVersion controlSoftware deploymentData scienceSoftware engineering
Owner:ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
Power headroom reporting method and device and computer storage medium
ActiveCN111542092AFlexible resourcesPower flexiblePower managementNetwork traffic/resource managementTelecommunicationsSignal on
The invention discloses a power headroom reporting method and device and a computer storage medium, and the method comprises the steps that a terminal calculates the power headroom PH of uplink signals on a plurality of bandwidth parts BWPs, and the plurality of BWPs are currently configured or activated BWPs of the terminal; and the terminal sends the PH of the uplink signal on at least one BWP in the plurality of BWPs to network equipment.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
An integrated base station antenna
ActiveCN103490175BReduce interactionGuaranteed electrical performance indexIndependent non-interacting antenna combinationsRadio frequency signalBeam control
The invention discloses an integrated base station antenna which comprises an active antenna part, a passive antenna part and a connection piece. The active antenna part and the passive antenna part share one antenna outer cover and are arranged side by side. The surface of the active antenna part is basically parallel to the surface of the passive antenna part. The active antenna part and the passive antenna part are fixed into a whole through the connection piece. The passive antenna part is designed according to the standard of a mainstream passive antenna. According to the scheme of the active antenna part, a radio frequency part of the base station antenna is integrated inside the antenna to be matched with antenna oscillators through multichannel radio frequency, the spatial beam forming is achieved, and receiving and dispatching of radio-frequency signals are completed; by the different configurations of the active antenna oscillators, the functions such as flexible beam control and MIMO of an actual communication network are achieved, and more flexible resource dynamic configuration and sharing is achieved so that the aims of the optimal performance of the whole network and the lower networking cost of the whole network can be achieved.
Owner:MOBI TECH SHENZHEN CO LTD +3
A wireless resource scheduling method
ActiveCN104822181BImprove collaborationFlexible resourcesWireless communicationControl layerWireless mesh network
The application discloses a wireless resource scheduling method. The method is characterized in that the method comprises: a wireless access network is divided into three layers including a physical facility layer, a multi-level control layer, and a center management layer. The physical facility layer includes wireless access points (AP). The multi-level control layer contains at least two levels of control modules; each control module manages a corresponding AP management set; each control module in an activation mode carries out physical resource and wireless resource scheduling on users in a user centralization unit according to a corresponding strategy; and according to the set levels, the control module with the higher level distributes the resources to the control module with the lower level when a set condition is met. The center management layer is formed by a global management entity that is used for deciding state operations and distribution operations of all control modules in the multi-level control layer. On the basis of the technical scheme disclosed by the application, problems of data transmission delay and transmission bottleneck and the like in the large-scale collaborative network can be solved, thereby enhancing the collaborative performance of the network and realizing flexible resource division and management.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Ultra-short-term operation scheduling method and device for electric power system
PendingCN112232693AEnsure that the water level does not exceed the limitReduce the phenomenon of discarded waterForecastingResourcesOperation schedulingElectric power system
The invention discloses an ultra-short-term operation scheduling method of an electric power system. The method comprises the steps of constructing a first hydropower optimization scheduling constraint condition; determining the type and the quantity of flexible resources which are put into ultra-short-term operation simulation; performing ultra-short-term operation simulation containing the firsthydropower optimization scheduling constraint condition on the electric power system according to an original starting mode of a conventional unit of the electric power system and the type and the number of the flexible resources so as to calculate a scheduling result of the electric power system; judging whether the climbing capacity vacancy and the peak shaving capacity vacancy of the power system are 0 or not according to the dispatching result of the electric power system; if yes, outputting the starting mode of the electric power system; and if not, outputting the climbing and peak shaving capacity vacancies of the electric power system. The invention further discloses a corresponding scheduling device. By implementing the method, the water and electricity dispatching operation requirements of the power system can be effectively considered, so that the flexibility of the electric power system is effectively improved on the basis of maintaining the optimal economy and the optimalutilization of water resources.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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