| 1. |
- Franzén, Frida, et al.
(författare)
-
Förstudie om beställarnätverk för cement, betong och alternativ
- 2024
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Den här förstudien syftade till att undersöka behoven av ett beställarnätverk förcement, betong och alternativ, samt hur ett sådant skulle kunna organiserats. Idagfinns klimatförbättrad betong på marknaden, men efterfrågan är svag. Ett beställarnätverk kan tänkas höja kompetensen hos beställarna för att ställa högre klimatkrav i upphandling av betong.Förstudien har utgått från ett antal frågeställningar och använt en intervjustudie som den centrala delen i informationsinhämtningen. En för projektet sammansatt expertgrupp har stöttat förstudien med kunskap inom relaterade branscher och sakfrågor såsom offentlig upphandling, beställarnätverk, bygg- och anläggningsbranschen samt betongbranschen. För urval av informanter utfördes en schematisk bild av leverantörs- och beställarled för cement, betong och alternativ. Den visar på en komplex väv av aktörer som på olika sätt påverkar hela värdekedjan. Vem som kan ses som ”beställare” i relation till upphandling av cement, betong och alternativ i denna väv är inte helt enkelt. Förstudien valde att inte hantera beställare av cement, då detta är betongleverantörer/producenter. Studien fokuserar således på beställare av betong, och till viss del alternativ (alternativa material till betong). Även med denna avgränsning är det potentiella antalet beställare som skulle kunna vara tilltänkta för ett beställarnätverk stort, varför förstudiens resultat behöver beaktas i det hänseendet och med den osäkerhet det innebär framför allt gällande beställares behov av ett beställarnätverk.I förstudien genomfördes 14 intervjuer med offentliga beställare, myndigheter, privata beställare, samt akademi och innovationsprogram. Beställarna var överlag positiva till bildandet av ett beställarnätverk. De flesta har idag utmaningar med att ta till sig ny kunskap då utvecklingen i betongbranschen går snabbt, att förstå upphandlingstekniska aspekter såsom kravställning på klimatförbättrad betong, samt hur man kan räkna och följa upp klimataspekter i byggprojekt. De övriga informanterna var till viss del tveksamma till att ett beställarnätverk är den rätta lösningen för att förflytta branschen och skapa större efterfrågan för klimatförbättrad betong. Dock ansåg samtliga informanter att det krävs ett stortkunskapslyft, i samtliga led i beställarledet, från planerare till projektör.Angående organisering ansåg de offentliga beställarna (kommuner) samt expertgruppen att det bör vara ett beställarnätverk endast för offentliga beställare, på grund av de särskilda förutsättningar som dessa har. De flesta ansåg inte att ett beställarnätverk behöver delas upp på byggsektor respektive anläggningssektor, men att det finns en utmaning med att få frågorna i nätverket relevanta för samtligaaktörer. Vidare ansåg de flesta att ett beställarnätverk behöver vara finansierat och styrt av en eller flera myndigheter. Då krävs det dock ett tydligt regeringsuppdrag, med öronmärkt finansiering för detta samordningsuppdrag.Många informanter menar att det krävs initiativ och samordning för att täppa kunskapsluckan som finns i beställarled, med den kunskap som finns genom aktuella forsknings- och innovationssatsningar samt befintliga vägledningar. Här menade de flesta att det dock inte handlar om ett beställarnätverk, utan snarare om att bygga på de nätverk och andra konstellationer för samverkan som redan finns och facilitera kunskapsspridning i olika branscher.Förstudien presenterar avslutningsvis ett antal rekommendationer för fortsatt arbete, som kan delas upp i två huvudsakliga spår: ett spår gällande fortsatt utredning för ett offentligt beställarnätverk eller liknande, och ett spår för fortsatt utredning kring en nationell plattform som samlar fler aktörer. Här nedan följer rekommendationerna i korthet:Som en miniminivå rekommenderar förstudien att det görs en vidare analysi hur offentliga beställare helst tar del av ny information och stöd om upphandling av betong och alternativ med mindre klimatpåverkan.Som en maximinivå rekommenderar förstudien att det görs utredningar kring möjligheter att ge ett regeringsuppdrag till en myndighet att etableraett forum för samverkan kring klimatförbättrad betong och alternativ.Utred hur det arbete som Upphandlingsmyndigheten gör, kring upphandlingsstöd av klimatförbättrad betong bäst förvaltas för genomslag hos beställare.Involvera branschorganisationer för att nå stora delar av branscherna och privata beställare.Bygg på det som finns! Med detta avses kunskap och erfarenheter i berörda branscher samt befintliga samverkansinitiativ, dock inte på befintliga beställarnätverk.
|
|
| 2. |
- Eftring, Håkan, et al.
(författare)
-
Tips for creating inclusive classrooms at LTH
- 2023
-
Ingår i: LTH:s 12:e Pedagogiska inspirationskonferens. - 2003-3761 .- 2003-377X. ; , s. 45-47
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- All people are different. All teachers are different. All students are different. They have different life situations, different study situations, and different preferences, conditions, and abilities. How can we take this diversity into account when we plan our teaching and exams? What situations should we prepare for? How can we help students focus on their learning and not on unnecessary obstacles we unconsciously introduce? If we make small efforts upfront, this lets us avoid much larger efforts later on when we are confronted with the reality of students in our class and their different needs.At this round table, let us discuss diversity in teaching and learning. During fall 2023, a pilot of the course “The Inclusive Classroom” was run at LTH, the Faculty of Engineering at Lund University. We present the compiled, most important take-aways of participants and instructors, in addition to individual case-studies. In a nutshell: There are a lot of easy things you can do that can already have large effects, and you are not alone: LTH has many resources to support you. Please join a supportive, engaged community and learn from and with us!
|
|
| 3. |
- Petersson, Anna
(författare)
-
Urban Cemeteries and the Aesthetics of Care
- 2023
-
Ingår i: ; , s. 29-29
-
Konferensbidrag (refereegranskat)abstract
- Even though urban cemeteries in Sweden today can be seen as making space for different memorial practices, they are also a materialization of certain cultural and religious norms (Kjaersgaard & Venbrux, 2016), which sometimes are expressed as functional and aesthetic values. In this respect, the urban cemetery has an abiding attitude to change in building on past traditions and designs to address the needs of present and future generations (cf. Brady, 2021). At the same time, urban cemeteries are also places where social and cultural change become insistently noticeable and tangible, creating both conflicts and an acceptance of each other’s differences (cf. Swensen & Skår, 2019). The aesthetics of the urban cemetery hence reflects views on how people, communities, and society at large make space in the city for diverse life worlds and temporalities (cf. Foucault, 1986). Nature, as it is framed in urban cemeteries, is sometimes viewed as a common symbolic resonance – as an expression of the eternal cycle of life and death. But negative aesthetic experiences of the ugliness in nature (cf. Brady, 2010) may also point to the precariousness of life, by revealing existential matters such as loss and oblivion (Petersson et al., 2018).Urban cemeteries can be seen both as ‘fields of care’ and ‘public monuments’ in Tuan’s (1974) sense of the terms. By expanding the concept of an ‘aesthetics of care’ (Petersson & Wingren, 2011; Lehtinen, 2020) to include both communicative and cultural memory (Assman, 2008), the intergenerational aspect of urban cemeteries could be reconsidered, taking sustainable aesthetics and existential sustainability into account. As human existence is reaching a crisis in terms of nature, climate, and health, places where existential matters are cared for may have an important influence not only on our wellbeing but also on our ethical thinking and acting (cf. Butler, 2004).
|
|
| 4. |
- Granlund, Alexander, et al.
(författare)
-
Evaluation of Local Conditions and Their Impact on Bifacial PV Performance at High Latitude
- 2022
-
Konferensbidrag (refereegranskat)abstract
- Different conditions such as module orientation, ground albedo, shading and latitude are known to affect the performance of bifacial photovoltaic modules. We evaluate bifacial performance for one year at a site located at 65°N through comparison of measured and simulated front and back side plane-of-array irradiation. Each investigated module has a different azimuth, tilt, and exposure to shading from the surroundings. Local shading is found to severely impact the energy yield of the site in general, and individual modules to a varying degree depending on their location and orientation. Proper shading analysis appears to be required in the planning phase of a bifacial photovoltaic installation to accurately calculate the expected energy yield. The bifacial gain of the modules with azimuths in the east–west sector is found to span a range from 16 % to approximately the bifaciality factor, depending on the orientation. To fully utilize the potential of bifacial photovoltaics, this variability also needs to be carefully considered when planning and building bifacial photovoltaic installations.
|
|
| 5. |
- Granlund, Alexander, et al.
(författare)
-
Evaluation of Snow Removal Methods for Rooftop Photovoltaics
- 2022
-
Konferensbidrag (refereegranskat)abstract
- Avoiding snow on photovoltaic (PV) installations is motivated for two reasons: to decrease power losses from shading, or to decrease mechanical loads to avoid damage to the PV-installation and the underlying construction. We experimentally investigated the effectiveness and suitability of four different snow removal methods at our facility in the north of Sweden (Piteå, 65°N), throughout three winters. The layout of a PV installation and the underlying roof, together with meteorological conditions and snow characteristics, impact which methods are best suited for snow removal. A simple roof rake with a rectangular toolhead works well when the snowpack is compact and not too thick, whereas a roof rake with a slide works better when the snow is dry and packed. Neither the investigated passive hydrophobic surface coatings, nor the active forward bias electrical heating methods induced shedding of the accumulated snowpack in our experiments without additional intervention. At our test facility in Piteå, the roof rake with a slide was the most effective and user-friendly snow removal. Despite maximum snow loads of approximately 1 kPa, far below the modules’ rating, cell damage was observed for both snow removal groups (except for the slide roof rake group) and the control group.
|
|
| 6. |
- Kärrholm, Mattias, et al.
(författare)
-
The Territorialisation of the Grocery Shopper: eco-ethical asceticism and environmental nostalgia.
- 2022
-
Ingår i: Territories, Environments, Governance: Explorations in Territoriology. - London : Routledge. - 9781032051666 ; , s. 153-173
-
Bokkapitel (refereegranskat)abstract
- In this chapter we focus on the territorialisation of grocery shoppers and their routes and routines in the city district Western Harbour in Malmö. The Western Harbour is an urban area close to the sea that was built to afford a sustainable and ecologically-friendly way of life. Here we are interested in how the mundane territorialised role of the grocery shopper has evolved among the inhabitants of this area, as well as in the impact of the design and aesthetics of the built environment on this process of territorialisation. The study is primarily based on six residents’ experiences of shopping, where routines and routes have been investigated through semi-structured interviews supplemented by participant-produced photographs and captions. Based on the findings, we discuss how eco-ethical and ascetic practices are developed in relation to the environment, as well as the role of different aspects and feelings of environmental nostalgia in stabilising the peculiar territorial role and sort of the grocery shopper.
|
|
| 7. |
- Nguyen, Björnborg, 1992, et al.
(författare)
-
Application and evaluation of direct sparse visual odometry in marine vessels
- 2022
-
Ingår i: IFAC-PapersOnLine. - : Elsevier BV. - 2405-8963. ; 55:31, s. 235-242
-
Konferensbidrag (refereegranskat)abstract
- With the international community pushing for a computer vision based option to the laws requiring a look-out for marine vehicles, there is now a significant motivation to provide digital solutions for navigation using these envisioned mandatory visual sensors. This paper explores the monocular direct sparse odometry algorithm when applied to a typical marine environment. The method uses a single camera to estimate a vessel's motion and position over time and is then compared to ground truth to establish feasibility as both a local and global navigation system. Whilst it was inconsistent in accurately estimating vessel position, it was found that it could consistently estimate the vessel's orientation in the majority of the situations the vessel was tasked with. It is therefore shown that monocular direct sparse odometry is partially suitable as a standalone navigation system and is a strong base for a multi-sensor solution.
|
|
| 8. |
- Petersson, Anna
(författare)
-
Making space in the city for diverse life worlds and temporalities : An explorative investigation of the affordance and territoriality of urban cemeteries
- 2022
-
Ingår i: ; , s. 12-12
-
Konferensbidrag (refereegranskat)abstract
- The urban cemetery is a built green environment that is both a place of death, belonging to the bereaved and their rituals of care and remembrance, and a recreational space, where people rest, walk their dog, jog, reflect in silence, or just pass through. Urban cemeteries and urban parks share some features and uses in that respect, but they also have very different meanings and functions. The restorative quality of cemeteries can be experienced differently depending on if you have a loved one buried there or not (Lai et al., 2020). In relation to death and bereavement, social and cultural encounters can also become heightened (Hallam, Hockey & Howarth, 1999), creating both conflicts and anacceptance of each other’s differences (Swensen & Skår, 2019). The presence of wild and domesticated animals can additionally have positive as well as negative effects on the contemplative and caretaking aspect of urban cemeteries (Petersson et al., 2018). Our general idea is that cemeteries, as places where existential matters are intensified, reflects views on how people, communities, and society at large make space in the city for diverse life worlds and temporalities (Foucault, 1986). We will in this presentation exploratively identify a set of affordances (Gibson, 1979/2015) and territories (Kärrholm & Brighenti, 2020) in the cemetery environment and investigate where they intersect. The aim is to promote existential and ecological sustainability in a rapidly changing urban landscape.
|
|
| 9. |
- Lindh, E. Mattias, 1986-, et al.
(författare)
-
7.9 SWEDEN: RISE bifacial test site in Piteå
- 2021
-
Ingår i: Bifacial Photovoltaic Modules and Systems: Experience and Results from International Research and Pilot Applications. - : INTERNATIONAL ENERGY AGENCY. - 9783907281031 ; , s. 143-
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- The name of the bifacial test site, Solvåg (Sunwave), reflects the design of the solar array, which winds across a grass field surrounded by pine trees; the azimuth and inclination of the solar modules vary along the array (see Figure 95). The solar park is municipality owned through the local power company, PiteEnergi, and located at the Piteå School of Music (65.3° N, 21.5° E) in the subarctic, coastal part of Sweden. The site is the result of a regional collaboration between PiteEnergi, Norut, Luleå University of Technology, and Piteå Science Park, and it was inaugurated by the Swedish Minister for Energy in July 2018. The Solvåg solar park is integrated into the city landscape and includes a wooden boardwalk along the modules to encourage the public to visit the site. The site’s blend of solar research (through RISE) and architectural design is reflected in the custom-made wooden mounting racks.
|
|
| 10. |
- Sou, Tomás, et al.
(författare)
-
Model-Informed Drug Development for Antimicrobials : Translational PK and PK/PD Modeling to Predict an Efficacious Human Dose for Apramycin
- 2021
-
Ingår i: Clinical Pharmacology and Therapeutics. - : John Wiley & Sons. - 0009-9236 .- 1532-6535. ; 109:4, s. 1063-1073
-
Tidskriftsartikel (refereegranskat)abstract
- Apramycin represents a subclass of aminoglycoside antibiotics that has been shown to evade almost all mechanisms of clinically relevant aminoglycoside resistance. Model-informed drug development may facilitate its transition from preclinical to clinical phase. This study explored the potential of pharmacokinetic/pharmacodynamic (PK/PD) modeling to maximize the use of in vitro time-kill and in vivo preclinical data for prediction of a human efficacious dose (HED) for apramycin. PK model parameters of apramycin from four different species (mouse, rat, guinea pig, and dog) were allometrically scaled to humans. A semimechanistic PK/PD model was developed from the rich in vitro data on four Escherichia coli strains and subsequently the sparse in vivo efficacy data on the same strains were integrated. An efficacious human dose was predicted from the PK/PD model and compared with the classical PK/PD index methodology and the aminoglycoside dose similarity. One-compartment models described the PK data and human values for clearance and volume of distribution were predicted to 7.07 L/hour and 26.8 L, respectively. The required fAUC/MIC (area under the unbound drug concentration-time curve over MIC ratio) targets for stasis and 1-log kill in the thigh model were 34.5 and 76.2, respectively. The developed PK/PD model predicted the efficacy data well with strain-specific differences in susceptibility, maximum bacterial load, and resistance development. All three dose prediction approaches supported an apramycin daily dose of 30 mg/kg for a typical adult patient. The results indicate that the mechanistic PK/PD modeling approach can be suitable for HED prediction and serves to efficiently integrate all available efficacy data with potential to improve predictive capacity.
|
|
