The Experts below are selected from a list of 451485 Experts worldwide ranked by ideXlab platform
Dong Xiang - One of the best experts on this subject based on the ideXlab platform.
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Asian Test Symposium - Selective Test Response Collection for Low-Power Scan Testing with Well-Compressed Test Data
2011 Asian Test Symposium, 2011Co-Authors: Dong Xiang, Zhen ChenAbstract:A new test Application scheme is proposed for low-power scan testing, which is able to compress test data significantly. A combination of a scan architecture and an existent test compression scheme can compress test data even better. Test power can be reduced greatly based on the new test Application scheme, according to which only a subset of scan flip-flops shifts a test vector or captures test responses in any clock cycle. Test response data can be another important problem. A new test response compaction scheme called selective test response collection is proposed to reduce test response data. Selective test response collection combines with a structure-based test response compactor, according to which many test response data can be dropped. Experimental results show that the proposed test Application scheme can efficiently reduce test power, compress test stimulus data, and compact test response data while test Application Cost can be well-controlled.
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low power scan testing for test data compression using a routing driven scan architecture
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2009Co-Authors: Dong Xiang, Dianwei Hu, Qiang Xu, Alex OrailogluAbstract:A new scan architecture is proposed to reduce peak test power and capture power. Only a subset of scan flip-flops is activated to shift test data or capture test responses in any clock cycle. This can effectively reduce the capture test power and peak test power. Two routing-driven schemes are proposed to reduce the routing overhead. Experimental results show that the proposed scan architecture can effectively reduce peak test power, capture power, test data volume, and test Application Cost.
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Low-Power Scan Testing for Test Data Compression Using a Routing-Driven Scan Architecture
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2009Co-Authors: Dong Xiang, Alex OrailogluAbstract:A new scan architecture is proposed to reduce peak test power and capture power. Only a subset of scan flip-flops is activated to shift test data or capture test responses in any clock cycle. This can effectively reduce the capture test power and peak test power. Two routing-driven schemes are proposed to reduce the routing overhead. Experimental results show that the proposed scan architecture can effectively reduce peak test power, capture power, test data volume, and test Application Cost.
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Reconfigured Scan Forest for Test Application Cost, Test Data Volume, and Test Power Reduction
IEEE Transactions on Computers, 2007Co-Authors: Dong Xiang, Jia-guang Sun, Hideo FujiwaraAbstract:A new scan architecture called reconfigured scan forest is proposed for Cost-effective scan testing. Multiple scan flip-flops can be grouped based on structural analysis that avoids new untestable faults due to new reconvergent fanouts. The proposed new scan architecture allows only a few scan flip-flops to be connected to the XOR trees. The size of the XOR trees can be greatly reduced compared with the original scan forest; therefore, area overhead and routing complexity can be greatly reduced. It is shown that test Application Cost, test data volume, and test power with the proposed scan forest architecture can be greatly reduced compared with the conventional full scan design with a single scan chain and several recent scan testing methods
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DAC - A Cost-effective scan architecture for scan testing with non-scan test power and test Application Cost
Proceedings of the 40th conference on Design automation - DAC '03, 2003Co-Authors: Dong Xiang, Jia-guang SunAbstract:A new scan architecture is proposed for full scan designed circuits. Scan flip-flops are grouped together if they do not have any common successors. This technique produces no new redundant faults. Scan flip-flops in the same group have the same values in all test vectors. All scan flip-flop groups form a scan forest, where each primary input drives the root of one scan tree. Test Application time and test power based on the proposed scan forest architecture can be reduced drastically while pin overhead and delay overhead should be the same as that of conventional scan design. It is shown that test Application Cost and test power with the proposed scan forest architecture can be reduced to the level of non-scan design circuits.
José Maria Tarjuelo - One of the best experts on this subject based on the ideXlab platform.
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Optimal reservoir capacity for centre pivot irrigation water supply: maize cultivation in Spain.
Biosystems Engineering, 2015Co-Authors: A. Izquiel, José Maria Tarjuelo, Pedro Carrión, Miguel Ángel MorenoAbstract:Centre pivots are one of the most widespread irrigation systems in the world. The aim was to develop a tool to optimise the design and management of the water distribution and centre pivot systems seeking to minimise water Application Cost per unit area (CT), including investment (Ca), operation (Ce), and maintenance Costs. With this aim, two options were considered: to feed the centre pivot 1) directly from an aquifer or 2) using a regulation reservoir. A software tool DEPIRE (design of centre pivot with regulating reservoir), was developed and implemented in MATLAB 2012b (The MathWorks Inc., Natick, MA, USA). It determines optimal flows, pipe diameters, pumps power and the volume of the regulation reservoir for any crop water requirement, different electricity rates and water availability in the tube well. With this tool, the effect of the irrigated area (S), dynamic water level (DWL) in the aquifer and the pumping flow rate on the CT was evaluated for a maize crop in Spain. The study area representing the minor CT was 70 ha for direct pumping from the borehole and 100 ha when using an intermediate reservoir. Incorporating a regulation reservoir generates lower CT than direct feed from the borehole for S > 100 ha for any DWL. CT increased linearly with the DWL due to a significant increase in Ce which primarily affects the Cost of water extraction from the aquifer, with a smaller effect on the Application Cost of the irrigation system.
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Low-Cost microirrigation system supplied by groundwater: An Application to pepper and vineyard crops in Spain
Agricultural Water Management, 2013Co-Authors: F. Carrión, José Maria Tarjuelo, Pedro Carrión, Miguel Ángel MorenoAbstract:The PRESUD tool was developed using MATLAB™ to identify the optimum microirrigation system design. The lowest Cost was determined by calculating the annual water Application Cost per unit of irrigated area (CT). This is defined as the Cost of one cubic meter of water applied to crops, and is the sum of investment (Ca), maintenance (Cm) and energy (Ce) Costs. This tool optimizes the shape of the characteristic and efficiency curves of the pump and the pumping pipe, distribution pipe, and irrigation system pipes diameters with a holistic approach.
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Optimal design of center pivot systems with water supplied from wells
Agricultural Water Management, 2012Co-Authors: Moreno, D. Medina, J. F. Ortega, José Maria TarjueloAbstract:Irrigation is one of the sectors in which energy consumption is increasing, mainly due to modernized systems designed to conserve water through the use of pressurized water distribution. Energy is one of the principle Costs in irrigation. In this study, a new methodology is developed to determine the minimum total water Application Cost (investment+operation Costs) in center pivot systems withdrawing water from wells. The proposed methodology optimizes the characteristic and efficiency curves for the pump as well as the types and diameters of pipes for pumping and distribution. In addition, the method accounts for hydrological variables (dynamic water table level and temporal variation), soil variables (infiltration parameters, surface storage capacity, surface impermeability), hydraulic variables (head losses in pipes, flow demand) and economic variables (energy Costs, pump and pipe Costs). In order to facilitate the technology transfer to managers and technicians, free software (DOP, “Diseno Optimo de Pivotes,” or Optimal Pivot Design) has been developed using MATLAB™. Results show that the best options are timing irrigation to avoid periods of high energy Costs as well as increasing pumping power and pipe size, with a greater system capacity (1.5Ls−1ha−1), and shorter operation time (18hday−1). The minimum water Application Cost is obtained in all case studies in this paper for center pivot systems irrigating 75ha, with lateral pipes of 254mm (10in.).
Michel Suéry - One of the best experts on this subject based on the ideXlab platform.
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Evisto (R) a way to produce ultra-thin gravity die castings
Revue de Métallurgie, 2013Co-Authors: Dejan Tomašević, Y. Longa, T. Carnevale, C. Bruyas, François Molle, A Da Silva, Michel SuéryAbstract:The massive use of air gaps in tooling, per the Evistoe (R) concept, can confine the heat contributed by the cast alloy in a small volume. The resulting high die wall temperatures are turned to account to cast parts having ultra-thin walls, of the order of one millimetre thick. Effective thermal insulation limits thermal exchanges to slow the cooling of a cast alloy. The property that best characterizes this effectiveness is the reciprocal of thermal conductivity, thermal resistance. Air was chosen as the insulating material because of its many advantages: very favourable thermal conductivity, limited Application Cost, and zero purchase Cost. Evistoe (R), an innovative tooling design, has been used to produce plates 1 mm thick measuring 130 by 200 mm and automobile seat backs 1.2 mm thick measuring 390 by 576 mm. The mechanical properties of the castings so produced complied with standard EN 1706 of May 2010 for aluminium alloy castings. A patent Application was filed for the Evisto (R) concept in August 2010.
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Evisto (R) a way to produce ultra-thin gravity die castings
Revue de Métallurgie, 2013Co-Authors: D. Tomasevic, Y. Longa, T. Carnevale, C. Bruyas, François Molle, A Da Silva, Michel SuéryAbstract:The massive use of air gaps in tooling, per the Evistoe (R) concept, can confine the heat contributed by the cast alloy in a small volume. The resulting high die wall temperatures are turned to account to cast parts having ultra-thin walls, of the order of one millimetre thick. Effective thermal insulation limits thermal exchanges to slow the cooling of a cast alloy. The property that best characterizes this effectiveness is the reciprocal of thermal conductivity, thermal resistance. Air was chosen as the insulating material because of its many advantages: very favourable thermal conductivity, limited Application Cost, and zero purchase Cost. Evistoe (R), an innovative tooling design, has been used to produce plates 1 mm thick measuring 130 by 200 mm and automobile seat backs 1.2 mm thick measuring 390 by 576 mm. The mechanical properties of the castings so produced complied with standard EN 1706 of May 2010 for aluminium alloy castings. A patent Application was filed for the Evisto (R) concept in August 2010.
Miguel Ángel Moreno - One of the best experts on this subject based on the ideXlab platform.
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Optimal reservoir capacity for centre pivot irrigation water supply: maize cultivation in Spain.
Biosystems Engineering, 2015Co-Authors: A. Izquiel, José Maria Tarjuelo, Pedro Carrión, Miguel Ángel MorenoAbstract:Centre pivots are one of the most widespread irrigation systems in the world. The aim was to develop a tool to optimise the design and management of the water distribution and centre pivot systems seeking to minimise water Application Cost per unit area (CT), including investment (Ca), operation (Ce), and maintenance Costs. With this aim, two options were considered: to feed the centre pivot 1) directly from an aquifer or 2) using a regulation reservoir. A software tool DEPIRE (design of centre pivot with regulating reservoir), was developed and implemented in MATLAB 2012b (The MathWorks Inc., Natick, MA, USA). It determines optimal flows, pipe diameters, pumps power and the volume of the regulation reservoir for any crop water requirement, different electricity rates and water availability in the tube well. With this tool, the effect of the irrigated area (S), dynamic water level (DWL) in the aquifer and the pumping flow rate on the CT was evaluated for a maize crop in Spain. The study area representing the minor CT was 70 ha for direct pumping from the borehole and 100 ha when using an intermediate reservoir. Incorporating a regulation reservoir generates lower CT than direct feed from the borehole for S > 100 ha for any DWL. CT increased linearly with the DWL due to a significant increase in Ce which primarily affects the Cost of water extraction from the aquifer, with a smaller effect on the Application Cost of the irrigation system.
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Low-Cost microirrigation system supplied by groundwater: An Application to pepper and vineyard crops in Spain
Agricultural Water Management, 2013Co-Authors: F. Carrión, José Maria Tarjuelo, Pedro Carrión, Miguel Ángel MorenoAbstract:The PRESUD tool was developed using MATLAB™ to identify the optimum microirrigation system design. The lowest Cost was determined by calculating the annual water Application Cost per unit of irrigated area (CT). This is defined as the Cost of one cubic meter of water applied to crops, and is the sum of investment (Ca), maintenance (Cm) and energy (Ce) Costs. This tool optimizes the shape of the characteristic and efficiency curves of the pump and the pumping pipe, distribution pipe, and irrigation system pipes diameters with a holistic approach.
Geoffrey I. Webb - One of the best experts on this subject based on the ideXlab platform.
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PRICAI - Cost-Sensitive Specialization
Lecture Notes in Computer Science, 1996Co-Authors: Geoffrey I. WebbAbstract:Cost-sensitive specialization is a generic technique for mis-classification Cost sensitive induction. This technique involves specializing aspects of a classifier associated with high misclassification Costs and generalizing those associated with low misclassification Costs. It is widely applicable and simple to implement. It could be used to augment the effect of standard Cost-sensitive induction techniques. It should directly extend to test Application Cost sensitive induction tasks. Experimental evaluation demonstrates consistent positive effects over a range of misclassification Cost sensitive learning tasks.
