@article{BusseKernebeckNefetal.2021, author = {Busse, Theresa Sophie and Kernebeck, Sven and Nef, Larissa and Rebacz, Patrick and Kickbusch, Ilona and Ehlers, Jan Peter}, title = {Views on Using Social Robots in Professional Caregiving: Content Analysis of a Scenario Method Workshop (Preprint)}, series = {J Med Internet Res}, volume = {23}, journal = {J Med Internet Res}, number = {11}, doi = {10.25974/fhms-17307}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-173072}, year = {2021}, abstract = {BACKGROUND Interest in digital technologies in the health care sector is growing and can be a way to reduce the burden on professional caregivers while helping people to become more independent. Social robots are regarded as a special form of technology that can be usefully applied in professional caregiving with the potential to focus on interpersonal contact. While implementation is progressing slowly, a debate on the concepts and applications of social robots in future care is necessary. OBJECTIVE In addition to existing studies with a focus on societal attitudes toward social robots, there is a need to understand the views of professional caregivers and patients. This study used desired future scenarios to collate the perspectives of experts and analyze the significance for developing the place of social robots in care. METHODS In February 2020, an expert workshop was held with 88 participants (health professionals and educators; [PhD] students of medicine, health care, professional care, and technology; patient advocates; software developers; government representatives; and research fellows) from Austria, Germany, and Switzerland. Using the scenario methodology, the possibilities of analog professional care (Analog Care), fully robotic professional care (Robotic Care), teams of robots and professional caregivers (Deep Care), and professional caregivers supported by robots (Smart Care) were discussed. The scenarios were used as a stimulus for the development of ideas about future professional caregiving. The discussion was evaluated using qualitative content analysis. RESULTS The majority of the experts were in favor of care in which people are supported by technology (Deep Care) and developed similar scenarios with a focus on dignity-centeredness. The discussions then focused on the steps necessary for its implementation, highlighting a strong need for the development of eHealth competence in society, a change in the training of professional caregivers, and cross-sectoral concepts. The experts also saw user acceptance as crucial to the use of robotics. This involves the acceptance of both professional caregivers and care recipients. CONCLUSIONS The literature review and subsequent workshop revealed how decision-making about the value of social robots depends on personal characteristics related to experience and values. There is therefore a strong need to recognize individual perspectives of care before social robots become an integrated part of care in the future.}, language = {de} } @techreport{Hinse2021, author = {Hinse, Michael}, title = {The Wells turbine: state of the art}, doi = {10.25974/ren_rev_2021_12}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136861}, pages = {63-66}, year = {2021}, abstract = {The first oscillating water column was invented in 1940. In the past decades the need of wave energy systems has significantly increased. This article quickly describes the Wells turbine and possibilities to enhance its performance and should answer the question: what are the design parameters that can be optimized? Furthermore it gives a small outlook about the history of oscillating Water Columns.}, language = {en} } @book{OPUS4-13985, title = {The Internationalisation of Higher Education - Perspectives from the THEA Ukraine Project and Beyond}, editor = {Pistor, Petra}, publisher = {FH M{\"u}nster}, address = {M{\"u}nster}, doi = {10.25974/fhms-13985}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-139854}, publisher = {FH M{\"u}nster - University of Applied Sciences}, pages = {166}, year = {2021}, abstract = {The Ukrainian higher education system has undergone a number of developments since Ukraine committed itself to the Bologna Process in 2005. Internationalisation and quality assurance in higher education have thus become two core policy issues to aid Ukraine's efforts in becoming a full member of the European Higher Education Area. Within the THEA Ukraine project (October 2019 - September 2021), 32 Ukrainian Higher Education Administrators received training in the field of internationalisation in higher education and science management. The participants worked on individual application projects to foster the international orientation of their home institutions, which are located all over Ukraine. The implementation of this project has provided material for a number of case study descriptions of projects undertaken in the THEA Ukraine framework, as well as general perspectives on internationalisation in higher education; this anthology covers both of these aspects.}, language = {en} } @article{Martinetal.2021, author = {Martin, Maria and ..., ... and ..., ... and Lorek, Sylvia and ..., ...}, title = {Ten new insights in climate science 2021: a horizon scan}, series = {Global Sustainability}, journal = {Global Sustainability}, publisher = {Cambridge University Press}, doi = {10.25974/fhms-16066}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-160666}, year = {2021}, abstract = {A synthesis is made of 10 topics within climate research, where there have been significant advances since January 2020. The insights are based on input from an international open call with broad disciplinary scope. Findings include: (1) the options to still keep global warming below 1.5 °C; (2) the impact of non-CO2 factors in global warming; (3) a new dimension of fire extremes forced by climate change; (4) the increasing pressure on interconnected climate tipping elements; (5) the dimensions of climate justice; (6) political challenges impeding the effectiveness of carbon pricing; (7) demand-side solutions as vehicles of climate mitigation; (8) the potentials and caveats of nature-based solutions; (9) how building resilience of marine ecosystems is possible; and (10) that the costs of climate change mitigation policies can be more than justified by the benefits to the health of humans and nature.}, language = {en} } @techreport{Haener2021, author = {H{\"a}ner, Jurek}, title = {Technologisches Lernen im Bereich Windenergie an Land}, doi = {10.25974/ren_rev_2021_07}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136814}, pages = {35-41}, year = {2021}, abstract = {Diese Arbeit befasst sich mit Kostentrends in Zusammenhang mit technologischem Lernen von Windenergie an Land in den USA, in Deutschland und weltweit. Ziel dieser Arbeit ist es, eine Lernkurve f{\"u}r Windenergie an Land zu bestimmen. Daf{\"u}r wurden Daten zu Stromgestehungskosten (LCOE) und Kosten f{\"u}r die Installation (COP) von Windenergieanlagen (WEA) im Zeitraum von 1983 bis einschließlich 2020 gesammelt, grafisch dargestellt und weitergehend ausgewertet. Die grafische Darstellung der Datenlage verdeutlicht die zeitliche Entwicklung der Technologie. Zur Beschreibung dieser Lernkurven wurden die Progress Ratio (PR) und Learning Rate (LR) in f{\"u}nf unterschiedlichen Modellen bestimmt. Anhand derer sich in Kombination mit der zuk{\"u}nftig installierten Leistung von WEA eine Prognose {\"u}ber zuk{\"u}nftige Kosten ableiten l{\"a}sst. Die ermittelten LR bewegen sich zwischen 13 \% und 28 \%, woraus sich LCOE im Jahr 2030 zwischen 44,03 US\$/MWh und 61 US\$/MWh ergeben.}, language = {de} } @techreport{Tillenburg2021, author = {Tillenburg, Dennis}, title = {Technical challenges of floating offshore wind turbines - An overview}, doi = {10.25974/ren_rev_2021_03}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136770}, pages = {13-18}, year = {2021}, abstract = {Floating offshore wind (FOW) holds the key to 80 \% of the total offshore wind resources, located in waters of 60 m and deeper in European seas, where traditional bottom-fixed offshore wind (BFOW) is not economically attractive. Many problems affecting floating offshore wind turbines (FOWT) were quickly overcome based on previous experience with floating oil rigs and bottom-fixed offshore wind. However, this technology is still young and there are still many challenges to overcome. This paper shows that electrical failures are amongst the most significant errors of FOWT. The most common cause was corrosion. It is also stated that the control system is most often affected, and that the Generator is frequently involved. Material corrosion is also the key factor when it comes to the most common overall reason for failures. A particular attention must be paid to mooring line fracture. Mooring lines are especially vulnerable to extreme sea conditions and the resulting fatigue, corrosion, impact damage, and further risks. It must be stated that the primary challenge is that of economics. Over time technological costs will decline making FOW more competitive and hence attractive for greater depth.}, language = {en} } @techreport{Olbertz2021, author = {Olbertz, Niklas}, title = {Sustainable hydro-power plants with focus on fish-friendly turbine design}, doi = {10.25974/ren_rev_2021_13}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136876}, pages = {67-71}, year = {2021}, abstract = {The impact of hydro-power plants on the ecosystem was studied with focus on the fish mortality and types of damage for many years. The fish mortality have a wide range of causes. Types of damage can be different and are caused by different parts of the power plant. The most dangerous part of the system are the fast moving turbine blades. They can cause blade strike and barotrauma due to the high speeds. Different types of turbines were developed for a better survival rate. Five different types of different research groups and manufacturers are presented in this paper. By considering those newly developed turbine designs, a fish survival rate from 96 \% to 100 \% is achieved.}, language = {en} } @article{BusseJuxKernebecketal.2021, author = {Busse, Theresa Sophie and Jux, Chantal and Kernebeck, Sven and Meister, Sven and Ehlers, Jan P.}, title = {Steigerung der Versorgungsqualit{\"a}t in der Palliativversorgung durch elektronische Gesundheitsakten}, series = {Monitor Versorgungsforschung}, volume = {14}, journal = {Monitor Versorgungsforschung}, issn = {1866-0533}, doi = {10.25974/fhms-17303}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-173035}, pages = {45 -- 50}, year = {2021}, language = {de} } @article{BaumeisterGardemannFobkeretal.2021, author = {Baumeister, Anna and Gardemann, Joachim and Fobker, Manfred and Spiegler, Verena and Fischer, Tobias}, title = {Short-Term Influence of Caffeine and Medium-Chain Triglycerides on Ketogenesis: A Controlled Double-Blind Intervention Study}, series = {Hindawi Journal of Nutrition and Metabolism}, volume = {Volume 2021, Article ID 1861567}, journal = {Hindawi Journal of Nutrition and Metabolism}, doi = {10.25974/fhms-13806}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-138069}, pages = {1 -- 9}, year = {2021}, abstract = {Background. Ketone bodies are a highly relevant topic in nutrition and medicine. -e influence of medium-chain triglycerides (MCT) on ketogenesis is well known and has been successfully used in ketogenic diets for many years. Nevertheless, the effects of MCTs and coconut oil on the production of ketone bodies have only partially been investigated. Furthermore, the increased mobilisation of free fatty acids and release of catabolic hormones by caffeine suggest an influence of caffeine on ketogenesis. Methods. In a controlled, double-blind intervention study, seven young healthy subjects received 10mL of tricaprylin (C8), tricaprin (C10), C8/C10 (50\% C8, 50\% C10), or coconut oil with or without 150 mg of caffeine, in 250mL of decaffeinated coffee, over ten interventions. At baseline and after every 40 minutes, for 4 h, ßHB and glucose in capillary blood as well as caffeine in saliva were measured. Furthermore, questionnaires were used to survey sensory properties, side effects, and awareness of hunger and satiety. Results. -e interventions with caffeine caused an increase in ßHB levels—in particular, the interventions with C8 highly impacted ketogenesis. -e effect decreased with increased chain lengths. All interventions showed a continuous increase in hunger and diminishing satiety. Mild side effects (total � 12) occurred during the interventions. Conclusions. -e present study demonstrated an influence of caffeine and MCTon ketogenesis. -eaddition of caffeine showed an additive effect on the ketogenic potential of MCT and coconut oil. C8 showed the highest ketogenicity.}, language = {en} } @techreport{Tchorz2021, author = {Tchorz, Enno}, title = {Sensorless maximum power point tracking systems in wind energy conversion systems - A review}, doi = {10.25974/ren_rev_2021_05}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136791}, pages = {24-29}, year = {2021}, abstract = {Wind energy conversion systems have attracted considerable attention as a renewable energy source due to depleting fossil fuel reserves and environmental concerns as a direct consequence of using fossil fuel and nuclear energy sources. The increasing number of wind turbines increases the interest in efficient systems. The power output of a wind energy conversion system depends on the accuracy of the maximum power tracking system, as wind speed changes constantly throughout the day. Maximum power point tracking systems that do not require mechanical sensors to measure the wind speed offer several advantages over systems using mechanical sensors. In this paper four different approaches that do not use mechanical sensors to measure the wind speed will be presented; the assets and drawbacks of these systems are highlighted, and afterwards the examined algorithms will be compared based on different characteristics. Finally, based on the analysis, an evaluation is made as to which of the presented algorithms is the most promising.}, language = {en} } @techreport{Speller2021, author = {Speller, Julian}, title = {Self-build small wind turbines - A review}, doi = {10.25974/ren_rev_2021_10}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136845}, pages = {53-56}, year = {2021}, abstract = {Self-build small wind turbines are used for rural electrification in the developed and developing world as well as for educational purposes. To give an overview about self-build small wind turbines a systematic literature review was conducted. The identified literature deals with two different vertical and horizontal axis turbine designs. The vertical axis turbines are both prototypes while one of the horizontal axis designs, the design by Piggott is widely used in rural electrification projects. Different papers dealing with the optimization of the Piggott design exist. In retrospect the conduction of a holistic review was not possible due to limited resources and length of this review. Nevertheless it can give a quick overview and a starting point for further research.}, language = {en} } @techreport{Steinigeweg2021, author = {Steinigeweg, Joshua}, title = {Review of the suitability of thermoplastic rotor blades in terms of the circular economy}, doi = {10.25974/ren_rev_2021_06}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136809}, pages = {30-34}, year = {2021}, abstract = {Wind energy has steadily gained importance in the generation of renewable energy over the last 25 years. A wind turbine has an average life expectancy of about 25 years. After that, thermoplastic composite materials from the rotors, among other things, accumulate and have to be recycled. Previous methods, such as landfilling, incineration and pyrolysis, have not yet proven to be effective in terms of the circular economy because the recycled material cannot be reused for equivalent products. The use of thermoplastic materials can be a sensible alternative, as thermoplastic resins can be recycled almost without loss of value due to their properties. Recycling of fibreglass is also possible with less loss of stiffness. In the future, it will be crucial to scale up thermoplastic rotor blades and create a market for the recycled material.}, language = {en} } @article{KreyenschmidtRoeslerRitter2021, author = {Kreyenschmidt, Judith and R{\"o}sler, Florian and Ritter, Guido}, title = {Recommendation of Good Practice in the Food-Processing Industry for Preventing and Handling Food Loss and Waste}, series = {Sustainability}, volume = {13}, journal = {Sustainability}, publisher = {MDPI}, doi = {10.25974/fhms-13969}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-139699}, pages = {9569 -- 9599}, year = {2021}, abstract = {Food-processing companies are controlled by societal influences and economic interests, but their efforts with regard to reducing food loss and waste are very different. This qualitative study aims to identify basic recommendations of good practice for the food-processing industry in order to prevent and handle food loss and waste. For this purpose, a comprehensive literature review was conducted in the field of food waste prevention and data was collected from thirteen German companies. The findings summarize the recommendations of good practice, which cover the entire supply chain from supplier to consumer and beyond. The analysis showed that the participating companies are already partially aware of operational measures, even if they are applied or mentioned without a systematic approach. Furthermore, the analysis revealed that most activities relate to internal matters, like processing, employees and utilization. However, the responsibility of foodprocessing companies does not end with internal processes to reduce food waste. The results show that some companies are already aware of their responsibility to be involved along the entire supply chain. Finally, the results show that the needs of consumers and suppliers must also be considered in order to reduce food waste, in addition to direct reduction measures. This paper highlights nine important stages and 53 basic recommendations for companies to address food loss and waste in order to improve their practices.}, language = {en} } @article{KernebeckBusseJuxetal.2021, author = {Kernebeck, Sven and Busse, Theresa Sophie and Jux, Chantal and Meyer, Dorothee and Dreier, Larissa Alice and Zenz, Daniel and Zernikow, Boris and Ehlers, Jan Peter}, title = {Participatory Design of an Electronic Medical Record for Paediatric Palliative Care: A Think-Aloud Study with Nurses and Physicians}, series = {Children}, volume = {8}, journal = {Children}, issn = {2227-9067}, doi = {10.25974/fhms-17321}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-173219}, pages = {695}, year = {2021}, abstract = {Background: Electronic medical records (EMRs) offer a promising approach to mapping and documenting the complex information gathered in paediatric palliative care (PPC). However, if they are not well developed, poorly implemented EMRs have unintended consequences that may cause harm to patients. One approach to preventing such harm is the involvement of users in the participatory design to ensure user acceptance and patient safety. Therefore, the aim of this study is to evaluate the acceptance of a novel patient chart module (PCM) as part of an EMR from the perspective of potential users in PPC and to involve these professionals in the design process. Methods: A qualitative observational study with N = 16 PPC professionals (n = 10 nurses, n = 6 physicians) was conducted, including concurrent think aloud (CTA) and semi-structured interviews. A structured content analysis based on the Unified Theory of Acceptance and Use of Technology was applied. Results: The results can be summarized in terms of general observations, performance expectancy, effort expectancy and facilitating conditions, all of which are likely to have a positive influence on acceptance of the PCM from the user perspective in the context of PPC. Conclusions: The involvement of users in the development of EMRs is important for meeting the requirements in PPC. Further software adaptations are necessary to implement these requirements.}, language = {en} } @article{BusseJuxKernebecketal.2021, author = {Busse, Theresa Sophie and Jux, Chantal and Kernebeck, Sven and Dreier, Larissa Alice and Meyer, Dorothee and Zenz, Daniel and Zernikow, Boris and Ehlers, Jan Peter}, title = {Participatory Design of an Electronic Cross-Facility Health Record (ECHR) System for Pediatric Palliative Care: A Think-Aloud Study}, series = {Children}, volume = {8}, journal = {Children}, issn = {2227-9067}, doi = {10.25974/fhms-17319}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-173191}, pages = {839}, year = {2021}, abstract = {Background: Pediatric palliative care (PPC) patients experience years of multisectoral and professional care. An electronic cross-facility health record (ECHR) system can support the immediate exchange of information among PPC professionals. Based on a needs assessment, a prototype ECHR system was developed. Methods: To evaluate potential users' perspective regarding the system, a qualitative observational study was conducted consisting of a concurrent think-aloud session and a semi-structured qualitative interview. Results: Twenty PPC professionals (nurses, physicians) from specialized outpatient PPC teams, a PPC unit, and medical offices rated the ECHR system as a helpful tool to improve the exchange and collection of information, communication between PPC professionals, and treatment planning. From the user's point of view, the basic logic of the ECHR system should be further adapted to improve the interaction of data remirrored from patient records of outpatient and inpatient care with those entered via the system. The users wished for further functions (text search) and content (information on therapies). Some content, such as the treatment process, needs to be further adapted. Conclusion: The developed ECHR system needs to be more specific in some features by offering all available information; while for other features, be less specific to offer a quick overview. The ability to share information promptly and automatically was seen as a tremendous improvement to the quality of care for PPC patients.}, language = {en} } @techreport{RitterReichardtHielscher2021, author = {Ritter, Prof. Dr. Guido and Reichardt, Kirsten and Hielscher, Janina}, title = {NRW isst besser!}, publisher = {FH M{\"u}nster}, isbn = {978-3-947263-30-1}, doi = {10.25974/fhms-14279}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-142796}, pages = {160}, year = {2021}, abstract = {Wegweiser zu einem nachhaltigeren Ern{\"a}hrungssystem in NRW}, language = {de} } @article{NitscheSmetanaKochaneketal.2021, author = {Nitsche, Julia and Smetana, Jan and Kochanek, Tonja and Busse, Theresa Sophie and Kernebeck, Sven and Taetz-Harrer, Angelika and Zupanic, Michaela and Eulitz, Mona and Ehlers, Jan P.}, title = {Needs must when the devil drives - Migration of an entire university to digital teaching}, series = {Zeitschrift f{\"u}r Hochschulentwicklung}, volume = {16}, journal = {Zeitschrift f{\"u}r Hochschulentwicklung}, number = {3}, doi = {10.25974/fhms-17316}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-173168}, year = {2021}, language = {en} } @article{BusseJuxKernebecketal.2021, author = {Busse, Theresa Sophie and Jux, Chantal and Kernebeck, Sven and Dreier, Larissa Alice and Meyer, Dorothee and Zenz, Daniel and Zernikow, Boris and Ehlers, Jan Peter}, title = {Needs Assessment for the Development of an Electronic Cross-Facility Health Record (ECHR) for Pediatric Palliative Care: A Design Thinking Approach}, series = {Children}, volume = {8}, journal = {Children}, issn = {2227-9067}, doi = {10.25974/fhms-17324}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-173245}, pages = {602}, year = {2021}, abstract = {Background: Pediatric palliative care (PPC) is characterized by years of multisectoral and multi-professional care. Sharing information between PPC professionals is, therefore, essential for quality care. The evidence shows that electronic cross-facility health records (ECHRs) provide useful support in this context. To our knowledge, no ECHRs have been developed through a user-centered approach for this specific setting in Germany. Methods: Guided by design thinking, first, qualitative interviews were conducted to assess the needs of PPC professionals. Second, the elicited needs were specified in focus groups (FGs). Based on the needs stated in the interviews, prototypes of the ECHR were developed and discussed in the FGs. The indicated needs were supplemented and specified in an iterative process. The prototypes were further adapted according to these results. The unified theory of acceptance and use of technology was the basic model in the evaluation of needs. Results: Across seven main categories, past and current medication, emergency view, and messaging functions were identified as the participants' desired core components of an ECHR. Utilizing design thinking facilitated the explicit articulation of user needs. Conclusions: Developing an ECHR with the content identified would allow for real-time data during emergencies, tracking what other PPC professionals have done, and making the applied treatments visible to others. This would offer a broader picture of the complex conditions common to PPC.}, language = {en} } @techreport{Hoge2021, author = {Hoge, Alexander}, title = {Measures for mitigating avian collision rates with wind turbines - Determining an effective technique regarding effort and effect}, doi = {10.25974/ren_rev_2021_08}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136826}, pages = {42-47}, year = {2021}, abstract = {Because of the rapid expansion and widespread application of wind energy the overall environmental impacts of wind power plants have increased as well. For the further development of wind power, methods to lessen the adverse effects wind power has on avian populations have to be implemented. This review aims to find effective methods to reduce avian collision rates with wind turbines and that therefore can reduce bird fatality rates. For the assessment the different mitigation methods, for which concrete data was found, are compared with each other regarding the hypothetical effort of implementation and effectiveness in reducing avian collision rates with wind turbines. These methods are: (a) Coloring of rotor blades (b) Coloring of the tower base (c) Ultraviolet/violet lightning (d) Temporary shut-down of wind turbines (e) Auditory warning signals (f) Repowering All of the mentioned methods report influence on reducing avian collision rates or at least the behavior of birds in flight. This review found the following three methods to be most effective: (a) Coloring of rotor blades (b) Temporary shut-downs of wind turbines (c) Repowering The most effective method to reduce avian collision rates at horizontal axis wind turbines is to paint one of the rotor blades black and consequently increasing the visibility of the rotor blades. The presented study reports 71,9 percent reduction of found carcasses of birds at the treated turbines. For this method the effort of implementation is low while the effectiveness is high. The effectiveness of the found mitigation methods has been proven and they are suited for application. The method of using lightning or sound fields require more testing to determine their effectiveness. Another topic for research could be how different mitigation methods interact with each other. Is there a significant advantage to be had if multiple mitigation methods are applied at the same wind power plant or turbine? Furthermore the environmental impacts of wind turbines are not limited to birds. Other animals like bats are affected too and might require different methods of mitigation.}, language = {en} } @techreport{Scheffler2021, author = {Scheffler, Mark}, title = {Low-Cost Hydropower Turbines for Developing Countries}, doi = {10.25974/ren_rev_2021_11}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136858}, pages = {57-62}, year = {2021}, abstract = {There are many hydropower turbines for low heads or low flows on a small scale. Many technologies are unsuitable for developing countries because equipment or materials are limited, high-tech machines are to expensive or spare parts are not readily available. This review combines currently available technologies with the requirements of developing countries in small, micro and pico hydropower. In small hydropower a propeller turbine from Thailand has a high efficiency of 70 to 80 percent at calculated production costs of around \$ 513 per kW. Pumps as turbines are suitable for developing countries in micro hydropower due to readily availability, low price and an large number of standard sizes. In pico-scale, a low-cost Turgo wheel can be made of spoons for \$ 48 and yields acceptable values in comparison to a 3D printed Pelton wheel for \$ 822. While the Turgo wheel is suitable for high heads, a homemade siphon turbine can be used for low heads. The siphon turbine generates up to 200 W, is made of materials that are available anywhere in the world, and costs less than \$ 50.}, language = {en} }