To support the rapid automatic services composition and fulfill multi-quality of service （multi- QoS） demand, we propose a novel approach to realize services composition automatically by a prefihering process. Aimed...To support the rapid automatic services composition and fulfill multi-quality of service （multi- QoS） demand, we propose a novel approach to realize services composition automatically by a prefihering process. Aimed at a set of web services with similar functionality and different quality of service （QoS） , a semantic services chain is given and a corresponding constructing algorithm is proposed to construct the data structure. A pre-filtering process is put forward to find whether a composition service before planning exists. It can avoid aborted planning. An optimal planning algorithm is proposed which can choose the most suitable service from a lot of similar candidate services based on semantic service chains and multi-QoS values. The algorithms can improve the correctness and automation performances of automated semantic web services composition. As an example, a concrete composite process is analyzed. Experimental results show the validity of the composite process.展开更多
Application-specific data processing units (DPUs) are commonly adopted for operational control and data processing in space missions. To overcome the limitations of traditional radiation-hardened or fully commercial d...Application-specific data processing units (DPUs) are commonly adopted for operational control and data processing in space missions. To overcome the limitations of traditional radiation-hardened or fully commercial design approaches, a reconfigurable-system-on-chip (RSoC) solution based on state-of-the-art FPGA is introduced. The flexibility and reliability of this approach are outlined, and the requirements for an enhanced RSoC design with in-flight reconfigurability for space applications are presented. This design has been demonstrated as an on-board computer prototype, providing an in-flight reconfigurable DPU design approach using integrated hardwired processors.展开更多
This paper shows prospective methodology as a tool to generate strategic knowledge for designing sustainable futures. The strategic prospective is a social science discipline dedicated to explore the future. Based on ...This paper shows prospective methodology as a tool to generate strategic knowledge for designing sustainable futures. The strategic prospective is a social science discipline dedicated to explore the future. Based on qualitative methods with participative experts and stakeholders, the strategic prospective allows designing different future scenarios and planning the transformation of a current situation into a desired future. To design sustainable futures, this paper proposes a four-stage methodology： understanding the context; strategy visualization; design of alternative scenarios and definition of desired future; and planning its construction. This methodology makes evident the possibility of seeking alternative scenarios for a sustainable future in different scopes, particularly, in two prospective applications： biodiversity conservation and water treatment. The outcomes of the application have allowed proposing strategies and policies for the management of environmental goods, such as environmental services and water reuse, with a long-time outlook based on a collective desired future.展开更多
基金Supported by the National Natural Science Foundation of China （No. 61201252, 60775037） , Humanities and Social Sciences Foundation of the Ministry of Education （No. 10YJC870046 ）, Natural Science Research Key Project of Anhui Provincial Higher Education （No. KJ2011 A128） , Soft Science Project of Anhui Province （ No. 11020503009）.
文摘To support the rapid automatic services composition and fulfill multi-quality of service （multi- QoS） demand, we propose a novel approach to realize services composition automatically by a prefihering process. Aimed at a set of web services with similar functionality and different quality of service （QoS） , a semantic services chain is given and a corresponding constructing algorithm is proposed to construct the data structure. A pre-filtering process is put forward to find whether a composition service before planning exists. It can avoid aborted planning. An optimal planning algorithm is proposed which can choose the most suitable service from a lot of similar candidate services based on semantic service chains and multi-QoS values. The algorithms can improve the correctness and automation performances of automated semantic web services composition. As an example, a concrete composite process is analyzed. Experimental results show the validity of the composite process.
基金Supported by Innovative Program of the Chinese Academy of Sciences (No. KGCY-SYW-407-02)Grand International Cooperation Foundation of Shanghai Science and Technology Commission (No. 052207046)
文摘Application-specific data processing units (DPUs) are commonly adopted for operational control and data processing in space missions. To overcome the limitations of traditional radiation-hardened or fully commercial design approaches, a reconfigurable-system-on-chip (RSoC) solution based on state-of-the-art FPGA is introduced. The flexibility and reliability of this approach are outlined, and the requirements for an enhanced RSoC design with in-flight reconfigurability for space applications are presented. This design has been demonstrated as an on-board computer prototype, providing an in-flight reconfigurable DPU design approach using integrated hardwired processors.
文摘This paper shows prospective methodology as a tool to generate strategic knowledge for designing sustainable futures. The strategic prospective is a social science discipline dedicated to explore the future. Based on qualitative methods with participative experts and stakeholders, the strategic prospective allows designing different future scenarios and planning the transformation of a current situation into a desired future. To design sustainable futures, this paper proposes a four-stage methodology： understanding the context; strategy visualization; design of alternative scenarios and definition of desired future; and planning its construction. This methodology makes evident the possibility of seeking alternative scenarios for a sustainable future in different scopes, particularly, in two prospective applications： biodiversity conservation and water treatment. The outcomes of the application have allowed proposing strategies and policies for the management of environmental goods, such as environmental services and water reuse, with a long-time outlook based on a collective desired future.
