| 41761. |
- Kaya, Onur, 1987, et al.
(författare)
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Exploring the possibilities of using image recognition technology to create a hybrid lean system for pulse methodology
- 2014
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Ingår i: Procedia Computer Science. - : Elsevier BV. - 1877-0509. ; 28, s. 275-284
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Konferensbidrag (refereegranskat)abstract
- Processes in product development are becoming more and more complex. A multitude of engineering disciplines are involved in the development of new products. New lean and agile methods arise. Pulse methodology is a lean deviation management methodology introduced by Scania in 2003, and since then many Swedish companies adapted it. It is based on synchronizing the company by frequently having short meetings (aka. pulse meetings) and visualizing the deviations using traffic coded magnets on whiteboards (aka. pulse boards). Even though the whiteboards lack providing efficient communication between distributed teams, still the users appreciate the simplicity of them. In this research, we presented a new methodology called hybrid pulse methodology, which solves the communication issues exist in the baseline methodology. We tested the methodology at the workshops we held in the companies, in simulated global meeting settings, using the demonstrator we developed for the methodology. This research contributes to the lean literature with a new methodology that ensures the synchronization of global organizations by providing efficient communication between distributed teams without damaging the baseline methodology.
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| 41762. |
- Kaya, Onur, 1987, et al.
(författare)
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Global Project Management Using Digital Pulse Methodology
- 2014
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Ingår i: International Association for Management of Technology.
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Konferensbidrag (refereegranskat)abstract
- Globalization is constantly increasing; companies are opening offices in different countries and having international partners. The ability of managing global projects is becoming an indispensable part of the companies’ competency portfolio in order to survive in the fierce competition. This research aims to provide an efficient and lean methodology for companies that want to be efficient at managing global projects. This paper contributes to the project management literature by expanding the knowledge on pulse methodology with a new methodology called digital pulse methodology, which helps companies to manage their global projects. Pulse methodology is a well-known and widely used methodology in Sweden for managing deviations in product development. Companies appreciate its simplicity and its lean tools. However, previous studies show that it is not efficient in global projects and there are a number of requirements it must fulfill in order to do so. We developed digital pulse methodology as an expansion on baseline pulse methodology aiming to improve the appreciated methodology towards making it fulfill the given requirements, thus help companies to manage deviations in global projects. We tested the new methodology by making the case company use it over a three months period. We gathered the results of the requirement tests along with the other benefits of the methodology using observations and interviews.
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| 41763. |
- Kaya, Onur, 1987, et al.
(författare)
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Introducing digital pulse as a deviation management methodology for dental product development and production
- 2015
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Ingår i: International Journal of Lean Enterprise Research. - 1754-2308. ; 1:4, s. 351-372
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Tidskriftsartikel (refereegranskat)abstract
- Pulse methodology is a lean deviation management methodology that helps to visualise the deviations using visualisation artefacts (e.g., white boards and TVs) and frequent meetings for internal synchronisations within a company. The purpose of this study is to fill the gap within the lean literature about teaching and introducing pulse methodology. It presents a case study where digital pulse methodology was introduced to a customer-order-driven product development and production company within the dental device industry to help the company efficiently manage the deviations arising from daily operations so that it becomes more lean by visualising important data and capturing and reusing knowledge. The presented case study and the conclusions will be useful for researchers, companies, and consultants who want to try out pulse methodology or understand the implementation process.
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| 41764. |
- Kaya, Onur, 1987
(författare)
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Lean Visual Management of Deviations in Product Development and Production - Coining Physical, Digital, and Hybrid Pulse Methodology
- 2015
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Lean is a relatively new trend, and every company strives for lean aiming for creating more output while using less input by focusing on the customer via eliminating non-value adding waste. Lean started at Toyota within its production system. From production, it started to be used in product development, and later on to other various sectors. Using lean thinking and lean principles, different tools and methods, which were not originally in the Toyota way, were developed under the umbrella term “lean tools”. Pulse methodology was developed by Scania in 2003 combining the visualization and surfacing problems lean principles, and frequent stand-up team meetings. Despite originally not being a part of Toyota’s lean tools arsenal, since its introduction it took its place in the Swedish industry as a lean tool; a lean deviation management tool. Here deviation encompasses everything that deviates from the wanted state in a company. Pulse methodology have ben actively used and appreciated by many companies in Sweden. After this long time usage, companies began to feel its limitations. Along with the appreciation for the methodology, instead of going for another methodology, the case companies joined this research project of improving the appreciated pulse methodology toward ruling out its limitations by improving it while keeping the appreciated parts.The research study that formed the results of this thesis started with checking how the case companies have been working, which shows how pulse methodology have been used, and what are its benefits and drawbacks, and limitations. Forming the problem description from the drawbacks and limitations, a prescription was created. This continued with creating two support tools and processes to solve this problem; consequently this thesis coins two new methodologies based on the baseline pulse methodology: hybrid pulse methodology and digital pulse methodology. Finally both of these new methodologies were tested in the company premises; one of them was fully deployed to be used in daily operations, and the other was only introduced by workshops.This thesis not only forms the first body of knowledge for pulse methodology, but also gives valuable knowledge and experience about it for the practitioners.
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| 41765. |
- Kaya, Onur, 1987, et al.
(författare)
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Learning from digital disturbance management in an integrated product development and production flow
- 2018
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Ingår i: International Journal of Product Lifecycle Management. - 1743-5129 .- 1743-5110. ; 11:4, s. 295-325
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Tidskriftsartikel (refereegranskat)abstract
- Disturbances are an integral part of a product development management effort since they indicate the starting point of improvement work. Disturbances can occur in any phase of the product lifecycle, and managing them in digital systems and relating them to other PLM data helps companies learn from problem solving and previous mistakes. The case investigated has evolved in their disturbance management journey from: 1) ad hoc; 2) frequent meetings; 3) physical disturbance board; to 4) digital disturbance board. This article concludes that a disturbance database can be used to elicit learning points which are supported with real data extracted from the case company's disturbance database. The impact of the proposed approach includes identifying latent problems, guiding improvement work and investments, and exposing seemingly trivial repetitive disturbances that incur a high cost over time.
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| 41766. |
- Kaya, Onur, 1987, et al.
(författare)
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Towards global deviation management in product development using pulse methodology: A case study
- 2014
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Ingår i: Procedia Computer Science. - : Elsevier BV. - 1877-0509. ; 28, s. 265-274
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Konferensbidrag (refereegranskat)abstract
- Problem solving is an important part of product development. Efficient deviation management together with efficient synchronization can increase the problem solving capabilities of companies. In this paper, we present a deviation management methodology called pulse methodology, which is widely used for product development management in Sweden. It is based on identifying deviations with traffic-coded magnets on a whiteboard and synchronizing the company with frequent meetings. We describe both the baseline pulse methodology and a specific adaptation case of it in a Swedish product development company where this research was carried out. Results showed that pulse methodology manages deviations in local projects efficiently and brings further benefits to the company. The aim of this research is to make the case company more efficient at managing deviations in global projects; specifically help them use pulse methodology for also global projects. In order to do so, we proposed improvements on pulse methodology to make it feasible to be used for global projects. The results have implications to all companies that use or want to use pulse methodology for managing deviations in global projects.
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| 41767. |
- Kaya, Onur, 1987, et al.
(författare)
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Useful deviations for deviation management information systems: From pulse methodology to a generic description
- 2016
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Ingår i: 2016 11th Systems of Systems Engineering Conference, SoSE 2016. Kongsberg, Norway, 12-16 June 2016. - 9781467387279
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Konferensbidrag (refereegranskat)abstract
- © 2016 IEEE.We learn from our mistakes, and for companies these mistakes are deviations (aka. problems, disturbances, issues, hiccups, mishaps etc.). Every captured and solved deviation creates new knowledge. Not capturing this knowledge, in lean terms, is a waste of created value. A way of capturing this knowledge is to record and manage them via a deviation management information system. The case company uses digital pulse methodology to do this task. But which deviations should be recorded? Or more precisely, which deviations are worth being recorded? The lack of clear answer to these questions, as seen in this case study, can make companies unable to capture the knowledge of minor deviations. In order to solve this problem, this paper answers what deviation is and which deviations should be recorded (i.e., useful deviations), from pulse deviation management methodology point of view. In addition, further implications of the results are discussed towards creating a generic definition from the pulse methodology specific one.
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| 41768. |
- Kayan, K, et al.
(författare)
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Can fall risk be incorporated into fracture risk assessment algorithms: a pilot study of responsiveness to clodronate
- 2009
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Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965.
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Tidskriftsartikel (refereegranskat)abstract
- Fall risk does not significantly impact on the efficacy of the bisphosphonate clodronate in reducing the incidence of fracture. INTRODUCTION: The debate about the efficacy of skeletal therapies on fracture risk in women at increased risk of falling continues. We determined whether fall risk impeded the efficacy of clodronate to reduce osteoporotic fracture incidence. METHODS: This is a post hoc analysis of a 3-year placebo-controlled study of bisphosphonate clodronate involving 5,212 women aged 75 years or more. At entry, self-reported multiple falls in the previous month and ability to rise from a chair were documented. Their interaction with treatment efficacy was examined using Poisson regression. RESULTS: Oral doses of clodronate at 800 mg daily reduced osteoporotic fracture incidence by 24% (hazard ration (HR) 0.76, 95% confidence interval 0.63-0.93). The efficacy was similar in women with recent multiple falls compared to those without (HR 0.61 vs. 0.77, p value for interaction >0.30) or impaired ability in rising compared to those with no impairment (HR 0.79 vs. 0.74, respectively; p value > 0.30). CONCLUSION: Fall risk does not significantly impact on the anti-fracture efficacy of clodronate. If confirmed with other agents, fall risk may be incorporated into risk assessment tools designed to target skeletal therapies.
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| 41769. |
- Kaydashev, V., et al.
(författare)
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Optical Absorption of Small Palladium-Doped Gold Clusters
- 2016
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Ingår i: Particle and Particle Systems Characterization. - : Wiley. - 0934-0866 .- 1521-4117. ; 33:7, s. 364-372
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Tidskriftsartikel (refereegranskat)abstract
- The effect of Pd doping on the structure and optical absorption of small cationic gold clusters is investigated by a combined photodissociation spectroscopy and time-dependent density functional theory study of Aun+Arp and PdAun-1+Arp (n = 4,5; p = 0,1). While pure Au clusters are planar, the Pd-doped clusters are 3D. UV-visible absorption is studied in the 2.0-4.7 eV photon energy range, allowing the observation of previously unreported absorption bands for Au-4(+) and Au4+Ar. The oscillator strength of the optical transitions is dramatically reduced upon incorporating a Pd atom in Au-4(+) and Au4+Ar, while this effect is less pronounced for Au5+Ar. Analysis of the electron density transfer shows a different influence of Pd with size. While Pd has a formal negative charge in Au3Pd+, in Au4Pd+ most of the charge is attracted by the highly coordinated central Au atom, leaving Pd positively charged, also affecting the induced structural changes. In addition, orbital analysis of the optical transitions is carried out in order to identify the levels involved in the optical absorption of the pure Au and Pd doped clusters. A reduction of the s density near the Fermi energy, induced by Pd doping, causes a quenching of optical absorption.
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| 41770. |
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