| 1. |
- Lagergren, Karin, et al.
(författare)
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High-spin states in the proton-unbound nucleus Re-161
- 2006
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Ingår i: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 74:2, s. 024316-
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Tidskriftsartikel (refereegranskat)abstract
- Excited states in Re-161 were populated using the Cd-106(Ni-58, p2n) reaction at a beam energy of 270 MeV, resulting in the first observation of gamma rays emitted from this nucleus. The reaction products were separated from scattered beam and fission fragments by the gas-filled recoil separator RITU, and were implanted in the double-sided silicon strip detectors of the GREAT spectrometer. Prompt gamma rays were detected by the JUROGAM Ge detector array and were assigned to Re-161 based on alpha- and proton-decay tagging of the implanted reaction products. The near-yrast high-spin level structure, which was delineated to spins around 39/2, is discussed in the context of the total Routhian surface formalism. The level scheme is interpreted in terms of the alignment of h(9/2)/f(7/2) neutrons at lower spins, followed by excitations involving the pi h(11/2) subshell at higher spins.
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| 2. |
- Van de Vel, K., et al.
(författare)
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Prolate structures in Po-189 and Pb-185
- 2005
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Ingår i: European Physical Journal A. - : Springer Science and Business Media LLC. - 1434-6001 .- 1434-601X. ; 24:1, s. 57-62
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Tidskriftsartikel (refereegranskat)abstract
- The 3/2(-) isomer in Pb-185 and states above it have been populated in the α-decay of Po-189. The observed α-decay strengths to and the electromagnetic decay properties of the excited states in Pb-185 have been combined with Potential Energy Surface and Particle-Plus-Rotor calculations to propose configuration assignments. It is suggested that the α-decaying isomer of Po-189 is of prolate origin and that the prolate configuration becomes very low in energy in Pb-185.
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| 3. |
- Argaw, Atelach Alemu, et al.
(författare)
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Dictionary-based amharic - English information retrieval
- 2005
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Ingår i: MULTILINGUAL INFORMATION ACCESS FOR TEXT, SPEECH AND IMAGES. - BERLIN : SPRINGER-VERLAG BERLIN. - 3540274200 ; , s. 143-149
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Konferensbidrag (refereegranskat)abstract
- We present two approaches to the Amharic - English bilingual track in CLEF 2004. Both experiments use a dictionary based approach to translate the Amharic queries into English Bags-of-words, but while one approach removes non-content bearing words from the Amharic queries based on their IDF value, the other uses a list of English stop words to perform the same task. The resulting translated (English) terms are then submitted to a retrieval engine that supports the Boolean and vector-space models. In our experiments, the second approach (based on a list of English stop words) performs slightly better than the one based on IDF values for the Amharic terms.
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| 4. |
- Argaw, Atelach Alemu, et al.
(författare)
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Dictionary-based Amharic-French information retrieval
- 2005
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Ingår i: CLEF2005 Working Notes. - : CEUR-WS.
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Konferensbidrag (refereegranskat)abstract
- We present four approaches to the Amharic -French bilingual track at CLEF 2005. All experiments use a dictionary based approach to translate the Amharic queries into French Bags-of-words, but while one approach uses word sense discrimination on the translated side of the queries, the other one includes all senses of a translated word in the query for searching. We used two search engines: The SICS experimental engine and Lucene, hence four runs with the two approaches. Non-content bearing words were removed both before and after the dictionary lookup. TF/IDF values supplemented by a heuristic function was used to remove the stop words from the Amharic queries and two French stopwords lists were used to remove them from the French translations. In our experiments, we found that the SICS search engine performs better than Lucene and that using the word sense discriminated keywords produce a slightly better result than the full set of non discriminated keywords.
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| 7. |
- Tholander, J., et al.
(författare)
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Where all the interaction is sketching in interaction design as an embodied practice
- 2008
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Ingår i: Proc Conf Des Interact Syst Process Pract Methods Tech DIS. - New York, NY, USA : ACM. - 9781605580029 ; , s. 445-454, s. 445-454
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Konferensbidrag (refereegranskat)abstract
- Sketching and design sketches are often recognized as key elements of successful interaction design practice and a central skill in interaction design expertise. Interaction design is a relatively young field without well-developed conventions, tools, and formalisms. We analyze the practical work and the conduct of interaction designers in how they express interaction and dynamics through whiteboard drawings. We focus on how talk and action were used to shape the meaning of the drawings. The ways the designers imagined that users would interact with the system and how it would mediate communication between users became topical through a web of drawings, talk, and embodied action. Our analysis forefronts three aspects of interaction design: 1) the role of the design material 2) the role of embodied action in interaction design, and 3) talk and embodied action as central means of doing design. We argue that the qualities of a design material need to be understood in relation to the activity in which it is taken into use and through the kinds of actions that the participants engage in. This implies that design representations do not carry meaning in themselves but are made meaningful through design activity.
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