Jonas Gustafsson
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View article: Data centres as a source of flexibility for power systems
Data centres as a source of flexibility for power systems Open
The increasing penetration of variable renewable energy resources and new demands have significantly heightened the need for flexibility in power systems. Data centres present a unique opportunity to enhance power system flexibility due to…
View article: Hardware Integrity Assessment of the Distributed Fast Beam Interlock System (FBIS) at the European Spallation Source (ESS)
Hardware Integrity Assessment of the Distributed Fast Beam Interlock System (FBIS) at the European Spallation Source (ESS) Open
View article: Experimental and numerical analysis of the thermal behaviour of a single-phase immersion-cooled data centre
Experimental and numerical analysis of the thermal behaviour of a single-phase immersion-cooled data centre Open
View article: Modular and Transferable Machine Learning for Heat Management and Reuse in Edge Data Centers
Modular and Transferable Machine Learning for Heat Management and Reuse in Edge Data Centers Open
This study investigates the use of transfer learning and modular design for adapting a pretrained model to optimize energy efficiency and heat reuse in edge data centers while meeting local conditions, such as alternative heat management a…
View article: COVID-19 and Disruptions of Trade Credit along the Supply Chains
COVID-19 and Disruptions of Trade Credit along the Supply Chains Open
View article: Adaptive Control of Data Center Cooling using Deep Reinforcement Learning
Adaptive Control of Data Center Cooling using Deep Reinforcement Learning Open
In this paper, we explore the use of Reinforcement Learning (RL) to improve the control of cooling equipment in Data Centers (DCs). DCs are inherently complex systems, and thus challenging to model from first principles. Machine learning o…
View article: Evolving 5G: ANIARA, an Edge-Cloud perspective
Evolving 5G: ANIARA, an Edge-Cloud perspective Open
Emerging use-cases like smart manufacturing and smart cities pose challenges in terms of latency, which cannot be satisfied by traditional centralized networks. Edge networks, which bring computational capacity closer to the users/clients,…
View article: Towards a Holistic Controller
Towards a Holistic Controller Open
The increased use of cloud and other large scale datacenter IT services and the associated power usage has put the spotlight on more energy-efficient datacenter management. In this paper, a simple model was developed to represent the heat …
View article: Evolving 5G
Evolving 5G Open
ANIARA (https://www.celticnext.eu/project-ai-net) attempts to enhance edge architectures for smart manufacturing and cities. AI automation, orchestrated lightweight containers, and efficient power usage are key components of this three-yea…
View article: Physical and Data-Driven Models for Edge Data Center Cooling System
Physical and Data-Driven Models for Edge Data Center Cooling System Open
Edge data centers are expected to become prevalent providing low latency computing power for 5G mobile and IoT applications. This article develops two models for the complete cooling system of an edge data center: One model based on the la…
View article: EDGE
EDGE Open
Low latency requirements are expected to increase with 5G telecommunications driving data and compute to EDGE data centers located in cities near to end users. This article presents a testbed for such data centers that has been built at RI…
View article: Open Research Data Pilot - BTDC
Open Research Data Pilot - BTDC Open
The BodenType Data Center One has been operational since January 2019. The data center has 3 PODS which are configured with slight variations in the fresh air-based cooling systems. The datasets that have been collected since operation com…
View article: Läsanvisningar Skolans kunskapsuppdrag
Läsanvisningar Skolans kunskapsuppdrag Open
Läsanvisningar i Rektorsprogrammet, år 3 höstterminen 2018, om skolans kunskapsuppdrag. Texten går igenom böcker på litteraturlistan och anger tematiseringar som kan användas på uppföljande seminarium.
View article: Replikering av hedgefonder : Ett rimligt investeringsalternativ?
Replikering av hedgefonder : Ett rimligt investeringsalternativ? Open
Denna studie undersöker huruvida avkastningen från hedgefonder kan replikeras med ett relativt okomplicerat tillvägagångssätt, och finner att det till en viss grad är möjligt. Med hjälp av terminskontrakt samt en ETF, används en rolling wi…
View article: Strategies and considerations in shaping cyber-physical systems education
Strategies and considerations in shaping cyber-physical systems education Open
Embedded and Cyber-Physical Systems education faces several challenges as well as opportunities as every-"thing" becomes connected, and as technology development accelerates. Initiatives such as CDIO, as well as several other academic and …
View article: Scheduling Meetings across Organizational Borders : Collaboration and Interoperability between Government Agencies and External partners
Scheduling Meetings across Organizational Borders : Collaboration and Interoperability between Government Agencies and External partners Open
Swedish agencies are obligated to collaborate in order to fulfil their respective missions. One of the largest agencies, The Social Insurance Agency, collaborates with several agencies, employers and care providers. Collaboration that need…
View article: A passive Barkhausen noise sensor for low-power applications
A passive Barkhausen noise sensor for low-power applications Open
This paper proposes a passive Barkhausen noise sensor design suitable for low power applications. The sensor uses a permanent magnet and the relative motion between itself and a measured specimen instead of the conventional method that use…
View article: Microsurgically aided upper lip replantation – case report and literature review
Microsurgically aided upper lip replantation – case report and literature review Open
A case with a patient who suffered an upper lip amputation and a lower lip laceration due to dog bite is presented. The amputated segment was replanted using microsurgical technique. The operative technique and postoperative care is presen…
View article: Nedskrivning av goodwill : Reella företagsekonomiska omständigheter, som verktyg för resultatmanipulering eller påverkad av finanskrisen?
Nedskrivning av goodwill : Reella företagsekonomiska omständigheter, som verktyg för resultatmanipulering eller påverkad av finanskrisen? Open
Denna studie behandlar nedskrivning av goodwill i svenska börsnoterade företag, och beaktar fyra möjliga förklaringar till detta. Relevant regelverk för den finansiella rapporteringen är IFRS. Genom en kvantitativ metod och ett deduktivt a…