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- Johansson, Pierre, 1986, et al.
(författare)
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Assessment Based Information Needs in Manual Assembly
- 2017
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Ingår i: 24th International Conference on Production Research, ICPR 2017. - Lancaster, Pennsylvania, USA : DEStech Publications. - 9781605955070 ; :ICPR 2017, s. 366-371
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Konferensbidrag (refereegranskat)abstract
- To handle the complex and flexible manufacturing of today it is vital to have well functional information systems for the operators so that they know when, what and where to assemble. The current designs of assembly work instructions differ much between companies, but also between plants within the same company. The digitalization trends and initiatives such as Industry 4.0 show the manufacturing industry the advantages to incorporate new methods and tools into their businesses. Even though manufacturing IT systems are designed to be adaptive to product and volume changes, they are still widely characterized by their rigid structures. Making large changes to manufacturing IT systems with comprehensive structures is complex and requires large amounts of resources. Therefore, it is important for the manufacturing companies to make the correct investments. In previous studies, two current state analyses have been conducted with the aim to map manufacturing engineering processes and IT systems producing assembly work instructions in a mass customization context. This paper presents results from the third part of a longitudinal study which focuses on identifying operators’ information needs in manual assembly of heavy vehicles. This third study aims to identify the information gap between the current state and the wanted state by assessing information needs at 13 assembly stations in three plants belonging to a global production network. The purpose is to identify design requirements for future assembly information systems enabling the practical use of the digitalization.
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| 2. |
- Johansson, Victoria, et al.
(författare)
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Tala läsa skriva
- 2013
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Ingår i: Johansson, V., Carling, G., & Holmer A. (red.) Språket, människan och världen. Människans språk 1-2.. - Lund : Studentlitteratur. - 9789144083391 ; , s. 53-72
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 3. |
- Le Breton, Michael, 1986, et al.
(författare)
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Chlorine oxidation of VOCs at a semi-rural site in Beijing: significant chlorine liberation from ClNO2 and subsequent gas- and particle-phase Cl-VOC production
- 2018
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Ingår i: Atmospheric Chemistry and Physics. - : Copernicus GmbH. - 1680-7316 .- 1680-7324. ; 18:17, s. 13013-13030:18, s. 13013-13030
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Tidskriftsartikel (refereegranskat)abstract
- Nitryl chloride (ClNO2) accumulation at night acts as a significant reservoir for active chlorine and impacts the following day's photochemistry when the chlorine atom is liberated at sunrise. Here, we report simultaneous measurements of N2O5 and a suite of inorganic halogens including ClNO2 and reactions of chloride with volatile organic compounds (Cl-VOCs) in the gas and particle phases utilising the Filter Inlet for Gas and AEROsols time-of-flight chemical ionisation mass spectrometer (FIGAERO-ToF-CIMS) during an intensive measurement campaign 40 km northwest of Beijing in May and June 2016. A maximum mixing ratio of 2900 ppt of ClNO2 was observed with a mean campaign nighttime mixing ratio of 487 ppt, appearing to have an anthropogenic source supported by correlation with SO2, CO and benzene, which often persisted at high levels after sunrise until midday. This was attributed to such high mixing ratios persisting after numerous e-folding times of the photolytic lifetime enabling the chlorine atom production to reach 2.3 x 10(5) molecules cm(-3) from ClNO2 alone, peaking at 09:30 LT and up to 8.4 x 10(5) molecules cm(-3) when including the supporting inorganic halogen measurements. Cl-VOCs were observed in the particle and gas phases for the first time at high time resolution and illustrate how the iodide ToF-CIMS can detect unique markers of chlorine atom chemistry in ambient air from both biogenic and anthropogenic sources. Their presence and abundance can be explained via time series of their measured and steady-state calculated precursors, enabling the assessment of competing OH and chlorine atom oxidation via measurements of products from both of these mechanisms and their relative contribution to secondary organic aerosol (SOA) formation.
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| 7. |
- Bengtsson, Kristofer, 1979, et al.
(författare)
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Emergency department overview - Improving the dynamic capabilities using an event-driven information architecture
- 2016
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Ingår i: IEEE International Conference on Emerging technologies and factory automation (ETFA) 2016.
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Konferensbidrag (refereegranskat)abstract
- It is challenging to get an overview and understand- ing of what is going on at an emergency department (ED). This is due to the sometimes turbulent work environment and a large variation in patient processes. To increase the dynamic capability and responsiveness of an ED, it is important that the staff and patients have an overview of what is going on and what will happen in the coming hours. This paper presents a smart online support software that shows the current state of the ED as well as a prediction of the coming hours. The software has been developed as a case study of using agile development ideas when developing new systems for hospitals. The result shows that the use of the event-driven information architecture for healthcare (EVAH) enabled a rapid development of a successful running application, helping the nurses getting an overview of current situation and the coming hours.
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| 8. |
- Berlin, Cecilia, 1981, et al.
(författare)
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Keyword Mingling workshop - a method for identifying and consolidating industrially perceived needs and requirements of future operators
- 2012
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Ingår i: Swedish Production Symposium, SPS12. - 9789175197524
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Konferensbidrag (refereegranskat)abstract
- Investments into the production technology of the future require a firm basis in the needsof production industry. However, gathering, sorting and ranking cross-industrial futureneeds remains a steep challenge to technology developers. Gathering feedback from justone or a few case companies can result in a biased set of priorities, since feedback fromspecific industrial sectors may often be highly influenced by their industry- and productspecificchallenges. This paper describes a structured method called “Keyword Mingling”that addresses the collection of such feedback in a multi-partner workshop format.The workshop method presented in this paper resolves this by using a highly interactive"mingling" technique to get participants in a large group workshop (between 15 - 20people) to answer a specific question. The participants discuss ideas in smaller groups,share their findings to the group at large, co-operatively organize the input from allparticipants into functional categories, and finally perform a 'ranking' of the results. Theoutcome is a prioritized list of concerns to focus research efforts on, providing workshopanalysts with a finished structure for reporting the results. The method was tested in twoworkshops within the project "The Operator of the Future" and resulted in plenty ofpositive feedback from participants, who felt that the input was relevant, well-structured,and easy to agree with due to the consensus categorizing.
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| 9. |
- Eriksson, Martin, 1970, et al.
(författare)
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Long-term effects of the antibacterial agent triclosan on marine periphyton communities
- 2015
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Ingår i: Environmental Toxicology and Chemistry. - : Wiley. - 0730-7268 .- 1552-8618. ; 34:9, s. 2067-2077
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Tidskriftsartikel (refereegranskat)abstract
- Triclosan is a widely used antibacterial agent that has become a ubiquitous contaminant in freshwater, estuary, and marine environments. Concerns about potential adverse effects of triclosan have been described in several recent risk assessments. Its effects on freshwater microbial communities have been well studied, but studies addressing effects on marine microbial communities are scarce. In the present study, the authors describe short- and long-term effects of triclosan on marine periphyton (microbial biofilm) communities. Short-term effects on photosynthesis were estimated after 60min to 210min of exposure. Long-term effects on photosynthesis, chlorophyll a fluorescence, pigment content, community tolerance, and bacterial carbon utilization were studied after exposing periphyton for 17d in flow-through microcosms to 0.316nM to 10000nM triclosan. Results from the short-term studies show that triclosan is toxic to periphyton photosynthesis. Half maximal effective concentration (EC50) values of 1080nM and 3000nM were estimated using (CO2)-C-14-incorporation and pulse amplitude modulation (PAM) fluorescence measurements, respectively. After long-term triclosan exposure in flow-through microcosms, photosynthesis estimated using PAM fluorometry was not inhibited by triclosan concentrations up to 1000nM but instead increased with increasing triclosan concentration. Similarly, at exposure concentrations of 31.6nM and higher, triclosan caused an increase in photosynthetic pigments. At 316nM triclosan, the pigment amounts were increased by a factor of 1.4 to 1.9 compared with the control level. Pollution-induced community tolerance was observed for algae and cyanobacteria at 100nM triclosan and higher. Despite the widespread use of triclosan as an antibacterial agent, the compound did not have any effects on bacterial carbon utilization after long-term exposure.
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| 10. |
- Fager, Patrik, 1988, et al.
(författare)
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Gripper types and components in robotic bin picking
- 2020
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Ingår i: IFIP Advances in Information and Communication Technology. - Cham : Springer International Publishing. - 1868-4238 .- 1868-422X. ; 591, s. 267-274
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Konferensbidrag (refereegranskat)abstract
- While automation is increasingly applied in production processes, it is still rarely used for the core picking activity in kitting and order picking. As picking activities often involves a large number of stock-keeping units (SKUs) with different characteristics, what gripper to use is a central aspect when robotics is applied. The aim of this paper is to improve the understanding of the relationship between gripper types and component characteristics in robotic applications for preparation of component kits. The aim is addressed by means of an experiment in a laboratory setting where a two-finger gripper and a vacuum-gripper are applied for grasping a variety of components in a kit preparation process. The two gripper types are studied with respect to important component characteristics for their suitability, and how the two gripper types compare from an efficiency standpoint. The paper’s findings are useful for practitioners when introducing robotic bin picking. The paper also makes an important contribution to academia in studying the effects of robot picking applications empirically, laying grounds for focused future studies within this area.
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