Compressed sensing(CS) is a significant technology in MRI reconstruction, which can reconstruct the image with few undersampleddata and speed up the imaging. The conventional CS-based MRI is implemented on the global...
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ISBN:
(纸本)9781538668122;9781538668115
Compressed sensing(CS) is a significant technology in MRI reconstruction, which can reconstruct the image with few undersampleddata and speed up the imaging. The conventional CS-based MRI is implemented on the global image, which not only loss many local structures but also fails in preserving the detail information. To improve the reconstruction quality, we proposed a novel CS-based reconstruction model, which is incorporated with nonlocal technology to gain extra details preservation. The proposed model grouped the similar patches within the nonlocal area, and stacked them to form a 3d array. Then, to process the array in a realistic 3d way, a tensor-based sparsity constraint is developed as the regularization on the reconstructed image. Experimental results show that the proposed method is more effectiveness and efficiency than the conventional ones.
Through silicon via (TSV) and stacked bonding are the core technologies to perform vertical interconnect for 3d integration. For wafer-level multilayer stacking process, thermal stress is generated and accumulateddue...
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ISBN:
(数字)9781665499057
ISBN:
(纸本)9781665499057
Through silicon via (TSV) and stacked bonding are the core technologies to perform vertical interconnect for 3d integration. For wafer-level multilayer stacking process, thermal stress is generated and accumulateddue to the difference in thermal expansion coefficients of materials in each layer of the structure. due to the large thermal stress, the issue of failures in the stacking process are caused by solder joints almost. Hence, thermal stress analyses for multilayer stacking process are in urgent need. In this paper, a finite element model (FEM) is established to investigate the reliabilities for six layered TSV wafer bonded. Selected the General Plane deformation (GPd) FEM model as the simulation model for conserving computer resources and time because of the large number of TSVs. Birth anddeath element technology is applied, anddescripted the procedure during the six layered wafer staking process. Considered three kinds of solder joint materials for SAC305, Sn63Pb37 and Sn10Pb90, and analyzed the von Mises stress and equivalent plastic strain.
It is crucial to enable regular users to explore rdF-compliant data bases in an effective way, regardless their knowledge about the SPARQL or the underlying ontology. Natural language querying have been proposed to ad...
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ISBN:
(纸本)9781450327459
It is crucial to enable regular users to explore rdF-compliant data bases in an effective way, regardless their knowledge about the SPARQL or the underlying ontology. Natural language querying have been proposed to address this issue. However it has unavoidably lower accuracy, as compared to systems with graph-based querying interfaces, which, in turn, are usually still too difficult for regular users. This paper presents a search system of user interface that is more user-friendly than widely known graph-based solutions.
Information content provided by members of the general public (mostly online) is playing an ever-increasing role in the detection, production anddistribution of news. This paper investigates the concepts of (1) grass...
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ISBN:
(纸本)9781450327459
Information content provided by members of the general public (mostly online) is playing an ever-increasing role in the detection, production anddistribution of news. This paper investigates the concepts of (1) grassroots journalism and (2) collaborative journalism. It looks into similarities anddifferences and shows how both phenomena have been influenced by the emergence of the Internet anddigital technologies. Then, the consequences for journalism in general will be analysed. Ultimately, strategies to meet the new challenges are suggested in order to maintain the quality and reliability of news coverage in the future.
In particular driven by today39;s game console technology, the number of 3d interaction techniques that integrate multiple modalities is steadily increasing. However, many developers do not fully explore anddeploy ...
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ISBN:
(纸本)9784904490112
In particular driven by today's game console technology, the number of 3d interaction techniques that integrate multiple modalities is steadily increasing. However, many developers do not fully explore anddeploy the sensorimotor possibilities of the human body, partly because of methodological and knowledge limitations. In this paper, we propose a design approach for 3d interaction techniques, which considers the full potential of the human body. We show how "human potential" can be analyzed and how such analysis can be instrumental in designing new or alternative multi-sensory and potentially full body interfaces.
We used for the first time an inkjet 3d printed vibrational mass sensor for submillimeter objects mass measurement with nanograms resolution. The 3d printed microcantilever structure allowed to determine mass of a gla...
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The COMPOSE project aims to provide an open Marketplace for the Internet of Things as well as the necessary platform to support it. A necessary component of COMPOSE is an API that allows things, COMPOSE users and the ...
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ISBN:
(纸本)9781450327459
The COMPOSE project aims to provide an open Marketplace for the Internet of Things as well as the necessary platform to support it. A necessary component of COMPOSE is an API that allows things, COMPOSE users and the platform to communicate. The COMPOSE API allows for things to push data to the platform, the platform to initiate asynchronous actions on the things, and COMPOSE users to retrieve and process data from the things. In this paper we present the design and implementation of the COMPOSE API, as well as a detaileddescription of the main key requirements that the API must satisfy. The API documentation and the source code for the platform are available at [9].
despite their semantic-rich nature, online communities have, to date, largely been analysed through examining longitudinal changes in social networks, community uptake, or simple term-usage and language adoption. As a...
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ISBN:
(纸本)9781450327459
despite their semantic-rich nature, online communities have, to date, largely been analysed through examining longitudinal changes in social networks, community uptake, or simple term-usage and language adoption. As a result, the evolution of communities on a semantic level, i.e. how concepts emerge, and how these concepts relate to previously discussed concepts, has largely been ignored. In this paper we present a graph-based exploration of the semantic evolution of online communities, thereby capturing dynamics of online communities on a conceptual level. We first examine how semantic graphs (concept graphs and entity graphs) of communities evolve, and then characterise such evolution using logistic population growth models. We demonstrate the value of such models by analysing how sample communities evolve and use our results to predict churn rates in community forums.
The aim of this study is to design English intelligent translation system based on 3d visualisation technology. B/S architecture is adopted, with the core functions on the server side and users accessing them through ...
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To investigate the complex topic of technology-enhanced learning, the design science research process suggests iteratively creating many separate artifacts. This time-consuming process leads to repeated implementation...
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ISBN:
(纸本)9798350300543
To investigate the complex topic of technology-enhanced learning, the design science research process suggests iteratively creating many separate artifacts. This time-consuming process leads to repeated implementations of similar features in parallel artifacts. We deduced that common requirements exist in the learning scenarios which can, thus, be fulfilled as reusable modules. In this paper, we identified these requirements and present our open-source toolkit with solutions for identifying learners in a login, importing 3d content from the web and managing this downloaded content, automation of interactions with mixed reality agents as mentors, integration in existing learning infrastructures and collecting data for learning analytics. With this modular design science research approach, multiple artifacts can be developed in parallel to investigate separate use case environments and other researchers can build upon the technical solutions to concentrate on the learning concept of their own mixed reality artifact.
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