The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Blast furnace gas (BFG) is one of the important secondary energy in the iron and steel enterprises. The reasonable use of BFG can raise economic profit and alleviate the environment pollution. The existing scheduling mode may cause not only a waste of gas, but also additional operations for compensating the inadequate initial scheduling. In this study, a dynamic causal diagram and constraint-based...
For designing a general scheduling platform, this part of paper discusses logic and process abstraction that can be implemented to different kind of space missions. A logic model extension solution is given to allow defining specific mission related data patterns with custom manipulation methods. The scheduling elements, requirement, inputs and outputs are organized in one solution for estimation...
In modern software, text is widely used as a common data carrier and more human oriented features are applied in texts. This paper introduces how text analysis technology is implemented in the crew collaboration scheduling system for retrieving and using text information. Regex expression is used as a basic tool for composing text analyzers and interpreters. External data is achieved based on conventional...
Scheduling has always been a bottleneck in space mission control in China. Issues at ideology and feasibility level are essential for plotting a brand new scheduling platform. Through introspection on traditional scheduling methods, theoretical and technical solutions are proposed to support advanced scheduling algorithms and products. Academic issues including theory and methodology are quoted to...
By analyzing the defects of traditional scheduling in space missions, sequential mission scheduling architecture, SMSA, is proposed in this paper to cope with progressively increasing number of state modes of spacecrafts and space missions. The improvements of SMSA lie in both methodologies and ideologies, which make it closer to the core of resource and activity scheduling. The key technologies that...
Virtualization technology is now widely adopted in cloud computing to support heterogeneous and dynamic workload. The scheduler in a virtual machine monitor (VMM) plays an important role in allocating resources. However, the type of applications in virtual machines (VM) is unknown to the scheduler, and I/O-intensive and CPU-intensive applications are treated the same. This makes virtual systems unable...
To regulate energy consumption and enable Demand-Response programs, effective demand-side management at home is key and an integral part of the future Smart Grid. In essence, the home energy management is a mix between discrete appliance scheduling problem with deadlines and continuous Heating, Ventilation and Cooling (HVC) device control problem. In this paper, we present near-optimal algorithm designs...
Crew collaboration schedule is a kind of integrated complex schedule used in space missions to help ground crews and taikonauts perform right task at right time. 12Scheduling was finished by hand in China's early missions costing considerable hours. So an automatic scheduling system was designed in Beijing Aerospace Control Center to substitute manual scheduling.
To reduce energy consumption and wastage, effective energy management at home is key and an integral part of the future Smart Grid. In this paper, we present the design and implementation of Green Home Service (GHS) for home energy management. Our approach addresses the key issues of home energy management in Smart Grid: a holistic management solution, improved device manageability, and an enabler...
In this paper, we present demand-side energy management under real-time demand-response pricing as a task scheduling problem which is NP-hard. Using minmax as the objective, we show that the schedule produced by our minMax scheduling algorithm has a number of salient advantages: significant peak-shaving, cost reduction, and risk-aversion for the consumers. We prove that our algorithm finds near-optimal...
Based on the fixed fairness algorithms, this paper considering the maximization of throughout in networks. Transforming the problem of allocation of bandwidth in centralized scheduling into a question of optimization of fairly allocate the rate, and then simplify it into linear programming problem. So an uplink fair alogrithms based on centralized scheduling is proposed. We use NS2 as the simulation...
A new cross-layer resource allocation scheme based on OFDMA systems was proposed to maximize overall data throughput on the premise of achieving diverse QoS, simultaneously, to ensure fairness between users as much as possible. The scheme takes full account of the QoS requirements at MAC layer and large-scale fading characteristics of wireless channels, and makes a joint design of packet scheduling...
The resource planning and scheduling technology of payload is to arrange the works states of various payloads to carry out missions by optimizing the scheme of the resources. Based on the analysis of the satellitepsilas functions and the payloadpsilas resource constraints, a proactive planning and scheduling strategy based on the availability of consumable and replenishable resources in time-order...
In this paper we propose the Insertion Based Packets Scheduling (IBPS), a novel packet scheduling method which can significantly reduce the maximum packet delay and delay jitter of high priority real-time data in packet switch systems. Traditional packet-by-packet scheduling will block a packet of real-time service in the packet queue until the transmission of a long non-real-time packet is finished...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.