{ "types" : { "Bookmark" : { "pluralLabel" : "Bookmarks" }, "Publication" : { "pluralLabel" : "Publications" }, "GoldStandardPublication" : { "pluralLabel" : "GoldStandardPublications" }, "GoldStandardBookmark" : { "pluralLabel" : "GoldStandardBookmarks" }, "Tag" : { "pluralLabel" : "Tags" }, "User" : { "pluralLabel" : "Users" }, "Group" : { "pluralLabel" : "Groups" }, "Sphere" : { "pluralLabel" : "Spheres" } }, "properties" : { "count" : { "valueType" : "number" }, "date" : { "valueType" : "date" }, "changeDate" : { "valueType" : "date" }, "url" : { "valueType" : "url" }, "id" : { "valueType" : "url" }, "tags" : { "valueType" : "item" }, "user" : { "valueType" : "item" } }, "items" : [ { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2d58e9bcd5799fb34358485ab53548c25/petraheim", "tags" : [ "2025","3D","Biocomposites","Fibre","Laser","Placement","PrintingTailored","Pultrusion","Scanning","Sustainable","Terrestrial","architecture","biomat","construction","costalonga","dahy","itke","kerekes","petrs","schwieger","spyridonos" ], "intraHash" : "d58e9bcd5799fb34358485ab53548c25", "interHash" : "4135de4f7cd20c3cbdf49f80f82f8799", "label" : "Enhancing construction accuracy with biocomposites through 3D scanning methodology: Case studies applying Pultrusion, 3D Printing, and Tailored Fibre Placement", "user" : "petraheim", "description" : "", "date" : "2025-03-10 13:33:31", "changeDate" : "2025-03-10 13:33:31", "count" : 2, "pub-type": "article", "journal": "Case Studies in Construction Materials","publisher":"Elsevier", "year": "2025", "url": "", "author": [ "Evgenia Spyridonos","Vanessa Costalonga","Jan Petrs","Gabriel Kerekes","Volker Schwieger","Hanaa Dahy" ], "authors": [ {"first" : "Evgenia", "last" : "Spyridonos"}, {"first" : "Vanessa", "last" : "Costalonga"}, {"first" : "Jan", "last" : "Petrs"}, {"first" : "Gabriel", "last" : "Kerekes"}, {"first" : "Volker", "last" : "Schwieger"}, {"first" : "Hanaa", "last" : "Dahy"} ], "volume": "22","number": "108296","abstract": "The building industry is increasingly adopting bio-based materials to meet the growing demand for environmentally friendly alternatives. Composites, known for their diverse properties and adaptable geometries, are gaining popularity as a versatile choice for customising materials for specific applications. This paper presents a 3D scanning methodology to enhance construction accuracy with sustainable building materials. It introduces three fabrication technologies for fibre-reinforced biocomposites and the resulting building components and structures at different scales achieved with each method. Pultrusion is employed to produce natural fibre biocomposite profiles used in an active-bending structural system. 3D Printing (3DP) is utilised to create a modular column using natural fibre-reinforced bioplastic, while Tailored Fibre Placement (TFP) is applied to fabricate biocomposite facade panels with varying geometries. The three case studies demonstrate the use of scanning technology to improve fabrication and assembly processes, with geometric accuracy evaluated through Terrestrial Laser Scanning (TLS) during construction, allowing for a detailed comparison of the built structures with the digital models. Scanning revealed that pultrusion produced accurate components but exhibited up to 160\u202Fmm deviations in large-scale freeform assemblies. 3DP can achieve high component manufacturing accuracy with deviations below 5\u202Fmm, though modular assembly introduced accumulated errors reaching 40\u202Fmm. TFP deviations varied between −48 and 60\u202Fmm, with different shaping approaches helping to reduce errors. A comparative analysis of the three methods provides recommendations for improving fabrication and assembly processes while establishing a framework for the future integration of biocomposites as structural components in architectural systems.", "language" : "eng", "doi" : "https://doi.org/10.1016/j.cscm.2025.e04499", "bibtexKey": "spyridonos2025enhancing" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2d58e9bcd5799fb34358485ab53548c25/itke", "tags" : [ "biomat","kerekes","PrintingTailored","Scanning","dahy","petrs","costalonga","3D","Placement","itke","Laser","spyridonos","2025","Terrestrial","construction","Biocomposites","Fibre","schwieger","Sustainable","Pultrusion","architecture" ], "intraHash" : "d58e9bcd5799fb34358485ab53548c25", "interHash" : "4135de4f7cd20c3cbdf49f80f82f8799", "label" : "Enhancing construction accuracy with biocomposites through 3D scanning methodology: Case studies applying Pultrusion, 3D Printing, and Tailored Fibre Placement", "user" : "itke", "description" : "", "date" : "2025-03-10 13:33:31", "changeDate" : "2025-03-10 13:33:31", "count" : 2, "pub-type": "article", "journal": "Case Studies in Construction Materials","publisher":"Elsevier", "year": "2025", "url": "", "author": [ "Evgenia Spyridonos","Vanessa Costalonga","Jan Petrs","Gabriel Kerekes","Volker Schwieger","Hanaa Dahy" ], "authors": [ {"first" : "Evgenia", "last" : "Spyridonos"}, {"first" : "Vanessa", "last" : "Costalonga"}, {"first" : "Jan", "last" : "Petrs"}, {"first" : "Gabriel", "last" : "Kerekes"}, {"first" : "Volker", "last" : "Schwieger"}, {"first" : "Hanaa", "last" : "Dahy"} ], "volume": "22","number": "108296","abstract": "The building industry is increasingly adopting bio-based materials to meet the growing demand for environmentally friendly alternatives. Composites, known for their diverse properties and adaptable geometries, are gaining popularity as a versatile choice for customising materials for specific applications. This paper presents a 3D scanning methodology to enhance construction accuracy with sustainable building materials. It introduces three fabrication technologies for fibre-reinforced biocomposites and the resulting building components and structures at different scales achieved with each method. Pultrusion is employed to produce natural fibre biocomposite profiles used in an active-bending structural system. 3D Printing (3DP) is utilised to create a modular column using natural fibre-reinforced bioplastic, while Tailored Fibre Placement (TFP) is applied to fabricate biocomposite facade panels with varying geometries. The three case studies demonstrate the use of scanning technology to improve fabrication and assembly processes, with geometric accuracy evaluated through Terrestrial Laser Scanning (TLS) during construction, allowing for a detailed comparison of the built structures with the digital models. Scanning revealed that pultrusion produced accurate components but exhibited up to 160\u202Fmm deviations in large-scale freeform assemblies. 3DP can achieve high component manufacturing accuracy with deviations below 5\u202Fmm, though modular assembly introduced accumulated errors reaching 40\u202Fmm. TFP deviations varied between −48 and 60\u202Fmm, with different shaping approaches helping to reduce errors. A comparative analysis of the three methods provides recommendations for improving fabrication and assembly processes while establishing a framework for the future integration of biocomposites as structural components in architectural systems.", "language" : "eng", "doi" : "https://doi.org/10.1016/j.cscm.2025.e04499", "bibtexKey": "spyridonos2025enhancing" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2da98728dfd9c6039b31ce795cd16df47/ihtpublikation", "tags" : [ "Absorption","Chemical","Germanium;","Quantum","Scanning","Single-photon","avalanche","coefficient;","deposition;","diodes","distribution;","electron","iht;","journal","key","microscopy;","vapor;" ], "intraHash" : "da98728dfd9c6039b31ce795cd16df47", "interHash" : "9dd7ed28ba9f81215e83819846bd8858", "label" : "Ge-on-Si single-photon avalanche diode using a double mesa structure", "user" : "ihtpublikation", "description" : "", "date" : "2025-02-19 11:29:40", "changeDate" : "2025-02-19 11:29:40", "count" : 2, "pub-type": "article", "journal": "Opt. Lett.","publisher":"Optica Publishing Group", "year": "2024", "url": "https://opg.optica.org/ol/abstract.cfm?URI=ol-49-22-6345", "author": [ "Maurice Wanitzek","Jörg Schulze","Michael Oehme" ], "authors": [ {"first" : "Maurice", "last" : "Wanitzek"}, {"first" : "Jörg", "last" : "Schulze"}, {"first" : "Michael", "last" : "Oehme"} ], "volume": "49","number": "22","pages": "6345--6348","abstract": "We present experimental results of Ge-on-Si single-photon avalanche diodes based on a novel, to our knowledge, double mesa structure. Using this structure, the electric field at the mesa edges is suppressed compared to a traditional single mesa, leading to significant performance improvements. The dark current in linear mode shows a smaller increase for larger reverse voltages, resulting in a reduction by more than 260 times at low temperatures. Operated in the Geiger-mode at 110\u2005K, the dark count rate in the double mesa is 100 times smaller. The devices achieve a dark count rate of 953\u2005kHz, a single-photon detection efficiency of 7.3\\%, and a record-low jitter of 81 ps at an excess bias of 17.6\\% and a temperature of 110\u2005K.", "doi" : "10.1364/OL.534436", "bibtexKey": "wanitzek2024geonsi" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2738b9c25718d9573effc2195432867e3/roberta.toscano", "tags" : [ "Coffee;Electron","analysis","contamination","food","microscopy;Food","scanning" ], "intraHash" : "738b9c25718d9573effc2195432867e3", "interHash" : "6265ebace0ce4f0a00b9b049db33dce0", "label" : "Coffee adulteration: More than two decades of research", "user" : "roberta.toscano", "description" : "", "date" : "2024-02-09 10:27:53", "changeDate" : "2024-02-09 10:27:53", "count" : 1, "pub-type": "article", "journal": "Critical Reviews in Analytical Chemistry", "year": "2016", "url": "", "author": [ "Aline Theodoro Toci","Adriana Farah","Helena Redigolo Pezza","Leonardo Pezza" ], "authors": [ {"first" : "Aline Theodoro", "last" : "Toci"}, {"first" : "Adriana", "last" : "Farah"}, {"first" : "Helena Redigolo", "last" : "Pezza"}, {"first" : "Leonardo", "last" : "Pezza"} ], "volume": "46","number": "2","pages": "83--92","abstract": "Coffee is a ubiquitous food product of considerable economic importance to the countries that produce and export it. The adulteration of roasted coffee is a strategy used to reduce costs. Conventional methods employed to identify adulteration in roasted and ground coffee involve optical and electron microscopy, which require pretreatment of samples and are time-consuming and subjective. Other analytical techniques have been studied that might be more reliable, reproducible, and widely applicable. The present review provides an overview of three analytical approaches (physical, chemical, and biological) to the identification of coffee adulteration. A total of 30 published articles are considered. It is concluded that despite the existence of a number of excellent studies in this area, there still remains a lack of a suitably sensitive and widely applicable methodology able to take into account the various different aspects of adulteration, considering coffee varieties, defective beans, and external agents.", "issn" : "1040-8347", "doi" : "10.1080/10408347.2014.966185", "bibtexKey": "Toci.2016" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/26476d3106a26c2cf1523569ba362aebd/petraheim", "tags" : [ "2021","BUGA","Fiber","Pavilion","architecture","biomimetics","coreless","dome","electron","filament","gresser","gubetini","heilbronn","imaging","inspection","itke","knippers","lightweight","microscopy","mindermann","on-site","robotic","rongen","scanning","structure","thermal","winding" ], "intraHash" : "6476d3106a26c2cf1523569ba362aebd", "interHash" : "864cfce7e5f7c67e662ef8bb34cfe51c", "label" : "Material Monitoring of a Composite Dome Pavilion Made by\r\nRobotic Coreless Filament Winding", "user" : "petraheim", "description" : "", "date" : "2021-10-13 15:32:08", "changeDate" : "2021-10-13 13:32:08", "count" : 5, "pub-type": "article", "journal": "Materials", "year": "2021", "url": "", "author": [ "Pascal Mindermann","Bas Rongen","Drilon Gubetini","Jan Knippers","Götz T. Gresser" ], "authors": [ {"first" : "Pascal", "last" : "Mindermann"}, {"first" : "Bas", "last" : "Rongen"}, {"first" : "Drilon", "last" : "Gubetini"}, {"first" : "Jan", "last" : "Knippers"}, {"first" : "Götz T.", "last" : "Gresser"} ], "volume": "14","pages": "5509","abstract": "A hemispherical research demonstration pavilion was presented to the public from April to October 2019. It was the first large-scale lightweight dome with a supporting roof structure primarily made of carbon- and glass-fiber-reinforced composites, fabricated by robotic coreless filament winding. We conducted monitoring to ascertain the sturdiness of the fiber composite material of the supporting structure over the course of 130 days. This paper presents the methods and results of on-site monitoring as well as laboratory inspections. The thermal behavior of the pavilion was\r\ncharacterized, the color change of the matrix was quantified, and the inner composition of the coreless wound structures was investigated. This validated the structural design and revealed that the surface temperatures of the carbon fibers do not exceed the guideline values of flat, black façades and that UV absorbers need to be improved for such applications.", "language" : "eng", "doi" : "https://doi.org/10.3390/ma14195509", "bibtexKey": "mindermann2021material" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/26476d3106a26c2cf1523569ba362aebd/itke", "tags" : [ "imaging","knippers","2021","filament","Pavilion","structure","gubetini","BUGA","itke","from:petraheim","winding","microscopy","Fiber","coreless","rongen","scanning","mindermann","gresser","heilbronn","robotic","biomimetics","lightweight","on-site","dome","inspection","thermal","electron","architecture" ], "intraHash" : "6476d3106a26c2cf1523569ba362aebd", "interHash" : "864cfce7e5f7c67e662ef8bb34cfe51c", "label" : "Material Monitoring of a Composite Dome Pavilion Made by\r\nRobotic Coreless Filament Winding", "user" : "itke", "description" : "", "date" : "2021-10-13 15:32:08", "changeDate" : "2021-10-13 13:32:08", "count" : 5, "pub-type": "article", "journal": "Materials", "year": "2021", "url": "", "author": [ "Pascal Mindermann","Bas Rongen","Drilon Gubetini","Jan Knippers","Götz T. Gresser" ], "authors": [ {"first" : "Pascal", "last" : "Mindermann"}, {"first" : "Bas", "last" : "Rongen"}, {"first" : "Drilon", "last" : "Gubetini"}, {"first" : "Jan", "last" : "Knippers"}, {"first" : "Götz T.", "last" : "Gresser"} ], "volume": "14","pages": "5509","abstract": "A hemispherical research demonstration pavilion was presented to the public from April to October 2019. It was the first large-scale lightweight dome with a supporting roof structure primarily made of carbon- and glass-fiber-reinforced composites, fabricated by robotic coreless filament winding. We conducted monitoring to ascertain the sturdiness of the fiber composite material of the supporting structure over the course of 130 days. This paper presents the methods and results of on-site monitoring as well as laboratory inspections. The thermal behavior of the pavilion was\r\ncharacterized, the color change of the matrix was quantified, and the inner composition of the coreless wound structures was investigated. This validated the structural design and revealed that the surface temperatures of the carbon fibers do not exceed the guideline values of flat, black façades and that UV absorbers need to be improved for such applications.", "language" : "eng", "doi" : "https://doi.org/10.3390/ma14195509", "bibtexKey": "mindermann2021material" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2011ff482476de539902f0403ed2a6e09/alexanderbrem", "tags" : [ "Health;Ageing","Scanning","TT","and","innovation;RRI;Foresight;Horizon","research","society;ICT;Responsible" ], "intraHash" : "011ff482476de539902f0403ed2a6e09", "interHash" : "620dc27a8a080506777852de997903bd", "label" : "The future of ICT for health and ageing: Unveiling ethical and social issues through horizon scanning foresight", "user" : "alexanderbrem", "description" : "", "date" : "2020-11-04 21:31:38", "changeDate" : "2020-11-05 10:32:31", "count" : 2, "pub-type": "article", "journal": "Technological Forecasting and Social Change", "year": "2020", "url": "", "author": [ "Catherine Flick","D. Zamani, Efpraxia","Bernd Carsten Stahl","Alexander Brem" ], "authors": [ {"first" : "Catherine", "last" : "Flick"}, {"first" : "D.", "last" : "Zamani, Efpraxia"}, {"first" : "Bernd Carsten", "last" : "Stahl"}, {"first" : "Alexander", "last" : "Brem"} ], "volume": "155","abstract": "This paper uses horizon scanning as a foresight methodology to investigate the opportunities, challenges and futures of ICT for health and ageing, particularly focusing on identifying the ethical and social issues associated with this sector. It uses empirical evidence gained from the analysis of interviews, literature reviews, and policy documents to identify the primary signals within the areas of future technologies, future environments, future companies, and future older people. In addition, we build on contemporary internet-based discussions amongst the general public and the ICT start-up sector to identify weak signals regarding ethical and social issues, based on and around these areas. Our findings show that the key ethical and social issues identified are concerned with the issue of the elderly being seen as collections of diseases, the human face of ICT, privacy and informed consent, autonomy, stereotyping of older people, and general anxieties around ICTs. We conclude our paper with recommendations for addressing these ethical and social concerns, specifically through the adoption of responsible research and innovation practices.", "issn" : "0040-1625", "doi" : "10.1016/j.techfore.2020.119995", "bibtexKey": "publ9859649" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2cac85b7651be4edf37731f4255e78cf7/mgeiger", "tags" : [ "(numerical","Buildings,","Optical","State","Strain","Strain,","adaptive","data,","distance","estimation,","filtering","filtering,","fusion,","gauges,","inertial","measurement,","methods),","multimodal","optical","particle","scanning","sensor","sensors,","state","strain","structure","structures,","supports,","system,","truss","variables" ], "intraHash" : "cac85b7651be4edf37731f4255e78cf7", "interHash" : "37a161db223c36f35cd24a7c5e9d8c9a", "label" : "Multimodal sensor fusion of inertial, strain, and distance data for state estimation of adaptive structures using particle filtering", "user" : "mgeiger", "description" : "", "date" : "2020-01-20 12:58:59", "changeDate" : "2020-01-20 11:58:59", "count" : 3, "pub-type": "inproceedings", "booktitle": "2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM), July 3-7, 2017, Munich", "year": "2017", "url": "", "author": [ "Philipp Rapp","Michael Heidingsfeld","Michael Böhm","Oliver Sawodny","Cristina Tarín" ], "authors": [ {"first" : "Philipp", "last" : "Rapp"}, {"first" : "Michael", "last" : "Heidingsfeld"}, {"first" : "Michael", "last" : "Böhm"}, {"first" : "Oliver", "last" : "Sawodny"}, {"first" : "Cristina", "last" : "Tarín"} ], "pages": "921--928","note": "B02, A06, B04, ISYS","abstract": "This contribution depicts an evaluation of the potential of state estimation techniques in the context of adaptive structures. Those techniques are necessary, as the control algorithms acting on the actuators of the adaptive structures need to know the system's state, but not all states are accessible for measurement. We model and simulate a truss structure, which is equipped with inertial sensors, strain gauges, and an optical scanning system. The latter performs a point-wise scan of the truss structure's surface, which renders the measurement equation time-varying. The truss structure is excited by wind in the simulation. We implement a particle filter in order to perform the multimodal sensor fusion and state estimation. The particle filter shows good results for both an unexcited scenario as well as for a wind excitation scenario. We discuss the results as well as the implications for the active control of adaptive structures.", "doi" : "10.1109/AIM.2017.8014136", "bibtexKey": "rapp_multimodal_2017" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2341577487b6c2bc8386c5bf6fc4fcd51/iigs_literatur", "tags" : [ "2018","accuracy","from:larsplate","iigs","scanning" ], "intraHash" : "341577487b6c2bc8386c5bf6fc4fcd51", "interHash" : "61ceb56fc89930ec9302891b39534122", "label" : "Influence of scanning parameters on the estimation accuracy of control points of B-spline surfaces", "user" : "iigs_literatur", "description" : "", "date" : "2019-02-08 07:54:43", "changeDate" : "2022-05-10 11:13:08", "count" : 3, "pub-type": "article", "journal": "Journal of Applied Geodesy","publisher":"deGruyter, Berlin,", "year": "2018", "url": "", "author": [ "Julia Aichinger","Volker Schwieger" ], "authors": [ {"first" : "Julia", "last" : "Aichinger"}, {"first" : "Volker", "last" : "Schwieger"} ], "volume": "12","number": "2","pages": "157-167", "bibtexKey": "aichinger2018influence" } ] }