Selecting Good Expansion Terms for Improving XML Retrieval Performance

Efficacy of navigating through the intraplaque route using AnteOwl WR intravascular ultrasound in femoropopliteal chronic total occlusion

CVIR Endovascular ◽

10.1186/s42155-021-00228-4 ◽

2021 ◽

Vol 4 (1) ◽

Author(s):

Naoki Hayakawa ◽

Satoshi Kodera ◽

Keisuke Takanashi ◽

Shuichi Sahashi ◽

Sandeep Shakya ◽

...

Keyword(s):

Intravascular Ultrasound ◽

Popliteal Artery ◽

Chronic Total Occlusion ◽

Asymmetric Structure ◽

Stent Deployment ◽

Total Occlusion ◽

Antegrade Approach ◽

Angiographic Image ◽

Good Expansion ◽

Drug Coated Balloon

Abstract Background There is no consensus on the optimal guidewire passage route for femoropopliteal (FP) chronic total occlusion (CTO). If intraplaque wiring can be performed, a stent-less strategy using a drug-coated balloon can be realized even with FP CTO, and there is a high possibility that good expansion can be obtained even when stent deployment is performed. AnteOwl WR (AnteOwl) is a novel intravascular ultrasound (IVUS) device useful for navigating the second guidewire into the intraplaque route under IVUS observation from the subintimal space. Here, we describe representative cases of FP CTO in which CTO-specific IVUS was extremely useful. Case presentation Case 1 involved a 79-year-old man with total occlusion of the left superficial femoral artery (SFA). We used a contralateral antegrade approach, but the guidewire was advanced into the subintimal space. We advanced AnteOwl into the CTO. By utilizing the asymmetric structure of the transducer and the IVUS wire, we were able to reflect the positional relationship among the IVUS transducer, IVUS wire, and target plaque onto the angiographic image. By aiming the wiring in that direction, we succeeded in traversing the center of the plaque and finally succeeded in obtaining good expansion using the drug-coated balloon. Case 2 involved a 76-year-old woman with total occlusion from the SFA to the popliteal artery. We used an ipsilateral antegrade approach. When AnteOwl was placed on the wire and advanced to the popliteal artery, the subintimal space in the middle of the SFA could be visualized. We employed an IVUS-guided parallel wiring technique and succeeded in passing through all intraplaque routes. Although the CTO was long, we could easily advance through the intraplaque route by reflecting the information obtained from AnteOwl in angiography. Conclusions AnteOwl is an effective IVUS for FP CTO and facilitates a complex IVUS-guided procedure.

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Adhesive properties of bio-based epoxy resin reinforced by cellulose nanocrystal additives

Journal of Polymer Engineering ◽

10.1515/polyeng-2019-0255 ◽

2020 ◽

Vol 40 (4) ◽

pp. 314-320 ◽

Cited By ~ 1

Author(s):

Tariq Aziz ◽

Hong Fan ◽

Xiangwei Zhang ◽

Farman Ullah Khan ◽

Shah Fahad ◽

...

Keyword(s):

Epoxy Resin ◽

Tensile Modulus ◽

The Self ◽

Environmental Engineering ◽

Interface Area ◽

Adhesive Properties ◽

Composite Matrix ◽

Bonding Performance ◽

Good Expansion ◽

Application Prospects

AbstractThe adhesive properties of a self-prepared bio-based epoxy resin with native cellulose nanocrystals (CNCs) are evaluated in this article. The porosity of actual CNCs is high. The most promising finding is the acquisition of high tensile modulus. The addition of CNC composites significantly increased the tensile modulus at lower wt.%, and the maximum crystallinity of CNCs was obtained. Bearing in mind the advantages of CNCs, scanning electron microscopy (SEM) showed a uniform distribution of concentrated CNCs. Clusters were formed at higher CNCs ratios, and the composite matrix content with high CNCs produced good expansion, low crystallinity, and increased elongation. Our analysis showed that the original CNCs were more evenly distributed in the self-prepared bio-based epoxy resin, which enhanced transformation, supported by improved dispersion of native CNCs. The presence of native CNCs greatly improved and enhanced the bonding performance of the bio-based epoxy resin in the interface area. Enhancing the mechanical properties of native CNCs has broad application prospects in environmental areas. This suggests that the widespread use of native CNCs in environmental engineering applications is feasible, especially in terms of adhesives properties.

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Semantic Search on Unstructured Data

International Journal on Semantic Web and Information Systems ◽

10.4018/jswis.2010040102 ◽

2010 ◽

Vol 6 (2) ◽

pp. 17-35 ◽

Cited By ~ 2

Author(s):

Alex Kohn ◽

François Bry ◽

Alexander Manta

Keyword(s):

Retrieval System ◽

Pharmaceutical Research ◽

Information Retrieval System ◽

Semantic Search ◽

Unstructured Data ◽

Search Performance ◽

Adaptive Search ◽

Retrieval Performance ◽

Enterprise Search ◽

Existing Data

Studies agree that searchers are often not satisfied with the performance of current enterprise search engines. As a consequence, more scientists worldwide are actively investigating new avenues for searching to improve retrieval performance. This paper contributes to YASA (Your Adaptive Search Agent), a fully implemented and thoroughly evaluated ontology-based information retrieval system for the enterprise. A salient particularity of YASA is that large parts of the ontology are automatically filled with facts by recycling and transforming existing data. YASA offers context-based personalization, faceted navigation, as well as semantic search capabilities. YASA has been deployed and evaluated in the pharmaceutical research department of Roche, Penzberg, and results show that already semantically simple ontologies suffice to considerably improve search performance.

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