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- Balaman, Ufuk, et al.
(författare)
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Development of L2 interactional resources for online collaborative task accomplishment
- 2017
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Ingår i: Computer Assisted Language Learning. - : Informa UK Limited. - 0958-8221 .- 1744-3210. ; 30:7, s. 601-630
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Tidskriftsartikel (refereegranskat)abstract
- Technology-mediated task environments have long been considered integral parts of L2 learning and teaching processes. However, the interactional resources that the learners deploy to complete tasks in these environments have remained largely unexplored due to an overall focus on task design and outcomes rather than task engagement processes. With this gap in mind, we set out to describe the emergence, development, and diversification of L2 (English) interactional resources oriented to task completion using conversation analysis for the examination of 13hours of screen-recorded online task-oriented interactions collected over 18 weeks. The focal tasks in the study have been designed as emergent information-gap tasks that require the participants to maintain progressivity by both displaying their own and converging with their co-participants’ dynamic knowledgeability for task completion purposes. A longitudinal investigation into task engagement processes has demonstrated that the participants fail to display their knowledge congruently and they repeatedly disrupt the progressivity of task-oriented interaction in earlier weeks. However, an observable diversification of interactional resources for collaborative task accomplishment has been recorded in later weeks, which demonstrates the development of interactional competence over time. These findings bring insights into interactional competence, epistemics, and CALL with special reference to technology-mediated TBLT.
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| 2. |
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| 3. |
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Emergent Syntax for Conversation : Clausal Patterns and the Organization of Action
- 2020. - 1
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Samlingsverk (redaktörskap) (refereegranskat)abstract
- This volume explores how emergent patterns of complex syntax – that is, syntactic structures beyond a simple clause – relate to the local contingencies of action formation in social interaction. It examines both the on-line emergence of clause-combining patterns as they are ‘patched together’ on the fly, as well as their routinization and sedimentation into new grammatical patterns across a range of languages – English, Estonian, Finnish, French, German, Hebrew, Italian, Mandarin, and Swedish. The chapters investigate how the real-time organization of complex syntax relates to the unfolding of turns and actions, focusing on: (i) how complex syntactic patterns, or routinized fragments of ‘canonical’ patterns, serve as resources for projection, (ii) how complex syntactic patterns emerge incrementally, moment-by-moment, out of the real-time trajectories of action, (iii) how formal variants of such patterns relate to social action, and (iv) how all of these play out within the multimodal ecologies of action formation.The empirical findings presented in this volume lend support to a conception of syntax as fundamentally temporal, emergent, dialogic, sensitive to local interactional contingencies, and interwoven with other semiotic resources.
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| 4. |
- Jevinger, Åse, et al.
(författare)
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Introducing an Intelligent Goods Service Framework
- 2021
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Ingår i: Logistics. - : MDPI. - 2305-6290. ; 5:3
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Tidskriftsartikel (refereegranskat)abstract
- With the increasing diffusion of Internet of Things (IoT) technologies, the transportation of goods sector is in a position to adopt novel intelligent services that cut across the otherwise highly fragmented and heterogeneous market, which today consists of a myriad of actors. Legacy systems that rely upon direct integration between all actors involved in the transportation ecosystem face considerable challenges for information sharing. Meanwhile, IoT based services, which are designed as devices that follow goods and communicate directly to cloud-based backend systems, may provide services that previously were not available. For the purposes of this paper, we present a theoretical framework for classification of such intelligent goods systems based on a literature study. The framework, labelled as the Intelligent Goods Service (IGS) framework, aims at increasing the understanding of the actors, agents, and services involved in an intelligent goods system, and to facilitate system comparisons and the development of new innovative solutions. As an illustration of how the IGS framework can be used and contribute to research in this area, we provide an example from a direct industry-academia collaboration.
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| 5. |
- Mohammadkhani, Ghasem, et al.
(författare)
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New Solvent and Coagulating Agent for Development of Chitosan Fibers by Wet Spinning
- 2021
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Ingår i: Polymers. - : MDPI AG. - 2073-4360. ; 13:13
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Adipic acid was evaluated as a novel solvent for wet spinning of chitosan fibers. A solvent with two carboxyl groups could act as a physical crosslinker between the chitosan chains, resulting in improved properties of the fibers. The performance of adipic acid was compared with conventional solvents, i.e., lactic, citric, and acetic acids. Chitosan solutions were injected into a coagulation bath to form monofilaments. Sodium hydroxide (NaOH) and its mixture with ethanol (EtOH) were used as coagulation agents. Scanning electron microscopy confirmed the formation of uniform chitosan monofilaments with an even surface when using adipic acid as solvent. These monofilaments generally showed higher mechanical strength compared to that of monofilaments produced using conventional solvents. The highest Young’s modulus, 4.45 GPa, was recorded for adipic acid monofilaments coagulated in NaOH-EtOH. This monofilament also had a high tensile strength of 147.9 MPa. Furthermore, taking advantage of chitosan insolubility in sulfuric acid (H2SO4) at room temperature, chitosan fibers were successfully formed upon coagulation in H2SO4-EtOH. The dewatering of fibers using EtOH before drying resulted in a larger fiber diameter and lower mechanical strength. Adipic acid fibers made without dehydration illustrated 18% (for NaOH), 46% (for NaOH-EtOH), and 91% (for H2SO4-EtOH) higher tensile strength compared to those made with dehydration.
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| 6. |
- Su, Chang, et al.
(författare)
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Building heating solutions in China : A spatial techno-economic and environmental analysis
- 2019
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Ingår i: Energy Conversion and Management. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0196-8904 .- 1879-2227. ; 179, s. 201-218
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Tidskriftsartikel (refereegranskat)abstract
- Fast urbanization process and promotion of life standard in China requires a great amount of energy input in building heating sector. North China now faces challenges of upgrading existing fossil fuel based high emission district heating systems into more environmental friendly heating systems. South China is discussing to choose proper building heating solutions for new and existing buildings which lack proper heating facilities. Renewable heating technologies such as ground source heat pump and air source heat pump are candidates to upgrade traditional heating solutions such as fossil fuel boilers and electric heaters. In order to find the most feasible building heating solution for different geolocations of China, this paper proposes a spatial data based techno-economic and environmental analysis methodology to fulfill such research gap. Case studies are carried out in two selected cities by using proposed methodology. Evaluation model shows that, heat pumps is quite competitive in south China compared with electric heaters, whereas in north China heat pumps have to reach several preconditions to be competitive with coal boiler district heating system under current techno-economic and environmental situations. In north China, a heat pump should reach a minimum seasonal coefficient of performance of 2.5-3.7 (for ground source heat pump) or 2.7-3.0 (for air source heat pump) to become CO2 and PM2.5 emission neutral as well as economically competitive compared with coal boiler district heating system. The advantage of proposed methodology is its simplicity in execution and could be repeated to other areas as the data required are available.
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