Journal articles on the topic 'Propulsive innovations'
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1
Bingham, V. P., and Thomas P. Mackey. "High-Performance Rudders—with Particular Reference to the Schilling Rudder." Marine Technology and SNAME News 24, no. 04 (October 1, 1987): 312–20. http://dx.doi.org/10.5957/mt1.1987.24.4.312.
Abstract:
The evolution of the rudder as a means of steering or maneuvering ships has not kept up with other progress in ship machinery and propulsion systems. During the past decade, however, several significant advances in ship maneuvering have been made based on the principle of diverting the propulsive thrust rather than simply steering the hull. One of these innovations is the Schilling rudder, which offers, at a relatively economical cost, greatly improved maneuverability even at very slow speeds. The Schilling rudder can be rotated 75 deg to either side without stalling, which provides stern thrust capability to the ship as the main engine thrust can be diverted at an angle of 90 deg to the hull. A twin Schilling Rudder system, with independently controllable rudders, has the additional features of allowing vectored reversal of ahead thrust, eliminating the need for a reversing gear or controllable-pitch propeller, and, when coupled with a suitable bow thrust device, can even provide a level of dynamic positioning capability to the ship. Both the single and double Schilling rudder systems have now been proven in service and their applicability extended to most types of vessels with no limit on size.
2
Kadyrbechevna Еshugova, Svetlana, and . "A Factor Analysis of Models for Regional Development." International Journal of Engineering & Technology 7, no. 3.15 (August 13, 2018): 340. http://dx.doi.org/10.14419/ijet.v7i3.15.18702.
Abstract:
This paper explores some of the key regional characteristics of the formation of market relationships that influence the overall economic situation in the country. The author examines regional units characterized by there being latent sources of cumulative growth within a multilevel stratified unit that incorporates a group of business entities engaged in a homogeneous type of economic activity which may initiate a multiplicative effect based on the capacity for systemic or developmental innovations, as well as a group of business entities associated with a propulsive sector through the “input/output” relationship, which ensures the translation of a multiplicative effect in the direction from higher territorial establishments to lower ones. The paper discusses the activity of key organizations within a recipient region with a view to identifying potential growth areas that could become the basis for the development of import substitution at the mesolevel, which are engaged in activity within the framework of traditional spheres of economic activity.
3
Gagarina, G. Yu, and D. A. Antonova. "Opportunities for the Russian Federation to Borrow from the World Experience of Preferential Regimes." Federalism 28, no. 3 (October 7, 2023): 29–48. http://dx.doi.org/10.21686/2073-1051-2023-3-29-48.
Abstract:
The presence of underdeveloped territories, a large number of backward and depressed regions has a direct impact on the economic security of both the regions themselves and the state as a whole. One of the tools for the development of space, which has proven its effectiveness in the practice of application in the world, are special (free) economic zones. The regimes emerging in their territories are commonly called preferential. Moreover, there are no uniform rules for the development of such formations. Each state, when establishing preferential regimes, is guided by its own national legislation, certain development goals, as well as the use of international experience in the formation of special economic zones. The main purpose of the article is to study the issues of the development of territories with preferential regimes, their impact on the economy of the home countries and the possibility of using world experience in the subjects of the Russian Federation to attract investment, create new jobs with the support of propulsive industries and the spread of innovations arising in these zones to the nearest areas.
4
Sepe, Marichela, and Michael Pitt. "Urban branding and place as a quality product: innovations in the urban experience." Journal of Facilities Management 15, no. 1 (February 6, 2017): 2–14. http://dx.doi.org/10.1108/jfm-10-2016-0042.
Abstract:
Purpose Starting from these premises, the aim of the paper is illustrating the role of experience in urban regeneration projects and to explore how the experience of high quality product luxury places can be sustainable with existent place identity or new place identity to be suitably created. Design/methodology/approach The experience of a place may become an integral part of a product experience. The enhancement of products (Splendiani, 2013): assumes a meaning which goes beyond the simple sale of material goods. It covers the supply of complex experiences … enriched by intangible elements capable to stimulate and involve the sensory and experiential component of consumption. It deals with attracting people to the places where local products are made by inserting the products in the most extensive offers covering the entire territorial system of reference The experience may also be used for the spectacolarisation of a place and its commercialisation, as in the case of “brandscapes” (Klingman, 2007). In this case, it is important not to clone every place everywhere because they could inevitably resemble each other without be able to really engage the people who move into them (Lehtovuori, 2010). The methodology approach is based on a wide bibliography and internet research based on the main terms connected to the topics of the paper, including experience, place identity, quality product, regeneration; on case studies – even though not illustrated – concerning places of interest for the research topics, such as: Hafencity in Hamburg, the Albert Dock in Liverpool, Abondaibarra area in Bilbao. Findings The planning of places of quality product cannot be separated from interpretation of the territory as a cultural system resulting from an ensemble of historical, economic and social processes. In such a system, the contribution of the cultural factor must be considered propulsive, not only for its qualitative meaning but also, and especially, for the role of “trait d’union” of a number of actions taken to protect and enhance places. Originality/value The increasing importance of the use of experience in the urban regeneration process is leading cities to be involved in constructing suitable images and symbols of their transformed areas to meet the new trends, also according with luxurious ones. Even though globalisation is one of the main dangers in innovative itineraries, the proper planning of quality architecture and public spaces could prevent it by creating a suitable mix between innovation and culture.
5
Seth, Ishita, Kalpna Guleria, Surya Narayan Panda, Divya Anand, Khalid Alsubhi, Hani Moaiteq Aljahdali, and Aman Singh. "A Taxonomy and Analysis on Internet of Vehicles: Architectures, Protocols, and Challenges." Wireless Communications and Mobile Computing 2022 (May 30, 2022): 1–26. http://dx.doi.org/10.1155/2022/9232784.
Abstract:
The accelerated evolution in computing and transmission automation of the Internet of Vehicles (IoV) has led to enormous research standards that attract many researchers and industries. This century of the Internet of Things (IoT) is propulsive to the routine vehicular ad hoc networks (VANETs) in the IoV. It has emerged as one of the major driving forces for innovations in the intelligent vehicular industry. The World Health Organization (WHO) report confirms that approximately 1.35 million people die because of accidents on the road every year. This requires considerable attention to incorporate more and more safety measures into the automobile industry. Intelligent transportation systems can help bridge the gap between the traditional and the intelligent automotive industry by connecting vehicle to vehicle (V2V) and vehicle to infrastructure (V2I), hence adding much safety in vehicular communication. This paper provides a comprehensive review of the Internet of Vehicles (IoV) which discusses the architectures of IoV including layer types, functions of layers, application area, and communication type supported. Further, it also provides an in-depth insight into state-of-the-art Medium Access Control (MAC) protocols and routing protocols used in IoV communication. The routing protocol comparative summarization considers important parameters which include communication types broadcast, unicast, cluster, multicast, forwarding strategy, recovery strategy, availability of map, and the type of environment urban or highway. The summarization of various protocols highlights strengths, research gaps, and application areas. Finally, the paper addresses various research challenges along with potential future enhancements for the IoV communication.
6
Gözüküçük, Nur Tuğçe. "BOEING 787 Model Daha Elektrikli Uçak Sistem Yenilikleri ve Araştırılan Sorunları." Orclever Proceedings of Research and Development 3, no. 1 (December 31, 2023): 458–68. http://dx.doi.org/10.56038/oprd.v3i1.402.
Abstract:
In recent years, MEA technology has brought about developments in the field of power electronics, fault-tolerant architecture, electro-hydrostatic actuators, flight control systems, high-density electric motors, power generation and conversion systems. Non-propulsive systems in traditional aircraft systems, ıt is powered by a combination of different secondary power sources such as hydraulic, pneumatic, mechanical and electrical while the more electric aircraft (MEA) concept ensures the use of optimum electrical power for all non-propellant systems.
The goal of future aircraft technology is to replace the majority of non-electrical power-using systems, such as environmental control and engine starting, with electrical systems to improve various aircraft characteristics such as efficiency, emissions, reliability and maintenance costs. B787 series aircraft, the first civil aircraft with more electric aircraft features of modern times, ıt features composite fuselage and wing profiles, fly-by-wire flight controls, advanced cockpit and General Electric or Rolls-Royce engines. Different from previous designs, Boeing has minimized the use of air from the engines in the B787 technology and makes extensive use of electrically powered systems instead of traditional pneumatically powered systems. B787 new generation passenger aircraft, ıt is anticipated that significant improvements such as aircraft weight, fuel consumption, total life cycle costs, carbon neutrality, ease of maintenance and aircraft reliability will reduce the effects of adverse environmental conditions.
In this study, the system innovations of the B787 aircraft model, which is a more electric aircraft concept and introduces different testing and working methods throughout the design process, and the problems caused by the new systems were investigated.
7
Nadar, Ryan. "Innovations in Laser-Driven Plasma Propulsion Systems for Space Exploration." Acceleron Aerospace Journal 1, no. 5 (December 30, 2023): 101–3. http://dx.doi.org/10.61359/11.2106-2321.
Abstract:
Laser propulsion has emerged as a promising technology for revolutionizing space exploration by offering rapid and efficient spacecraft propulsion. This paper proposes a novel system that integrates dense corona discharge with electrical mechanisms to significantly enhance the efficiency and effectiveness of laser propulsion. Leveraging plasma physics and laser technology, this system harnesses the synergy between dense plasma and laser-driven propulsion, significantly exceeding the capabilities of conventional systems. Theoretical analysis and computational simulations reveal the potential for increased thrust, improved energy conversion efficiency, and enhanced controllability, paving the way for next-generation spacecraft propulsion technologies.
8
Kyvik, Oyvin, and Age Svein Gjosaeter. "Environmentally sustainable innovations in offshore shipping: A comparative case study." Journal of Innovation Management 5, no. 1 (May 18, 2017): 105–31. http://dx.doi.org/10.24840/2183-0606_005.001_0008.
Abstract:
Two Norwegian offshore shipping firms facing the challenge of developing more environmentally sustainable services choose divergent strategies. One focuses on managerial innovation and develops a new business model equally dividing fuel-savings achieved through operational optimization between customers and the Norwegian Rainforest Foundation, thus operating climate neutrally. The other firm develops a technology-driven strategy and develops LNG-propulsion for part of its fleet. Following the firms through the innovation processes, the study finds that implementing environmentally sustainable innovations requires managerial capability to provide a holistic and integrative perspective on organizational innovation processes which align technical and managerial actions and activities. The findings indicate that a business model can be used as a boundary-spanning tool that goes beyond the ambidextrous challenges of balancing and integrating exploration and exploitation and provides a complementary view on organizational innovation processes. The comparative case study looks inside the “black box” of sustainable innovation and offers theoretical and practical insights to academics and students. The study also contributes guiding principles for practitioners and policymakers.
9
Davidova, Jelena, and Irēna Kokina. "Teachers' Views on Innovative Processes in Schools of Latvia." Journal of Teacher Education for Sustainability 8, no. 1 (January 1, 2007): 25–36. http://dx.doi.org/10.2478/v10099-009-0010-9.
Abstract:
Teachers' Views on Innovative Processes in Schools of LatviaOrienting society toward sustainable development is impossible without the development of a teacher into a creative person with his/her individual style of activity and thinking. This cannot be achieved without a continuous and systematic professional development that promotes innovation. Great hopes are placed on innovations, they are considered to be a reliable driving force for development. The research emphasizes the importance of identifying what teachers think about innovations in education and their own position in relation to innovative activity. Evolutionary Model, Innovative Milieu Model, and Propulsion Model of Creative Contributions can be applied within a context of presented study. Eight teachers (four teachers with a student/learning-centred orientation towards teaching and four teachers with content-centred orientation towards teaching), who worked at different schools, were interviewed in October and November 2006. Ettlie and O'Keefe's scale of attitude to innovations was used as the basis during the interview. The research revealed the most important factors hampering teachers' motivation for innovative activity and pedagogical regularities and criteria for stimulating innovations.
10
Pigulevski, Iouri. "Laser Propulsion Market-Creating Innovation." New Space 4, no. 2 (June 2016): 123–28. http://dx.doi.org/10.1089/space.2015.0034.
11
Sun, Minghan, Yiwei Jia, Jian Wei, and Jewel X. Zhu. "Exploring the Green-Oriented Transition Process of Ship Power Systems: A Patent-Based Overview on Innovation Trends and Patterns." Energies 16, no. 6 (March 8, 2023): 2566. http://dx.doi.org/10.3390/en16062566.
Abstract:
The shipping industry has accelerated the transformation of its carbon emission reduction and decarbonization, and relevant patents are rapidly increasing, but the industry still lacks consensus on the low-carbon development route of ship propulsion technology. We used the Derwent Innovation Index to collect the global patent information on ship power systems between 1965 and 2022 and proposed a new patent information mining framework. It is used for the dynamic tracking and analysis of global technology correlation characteristics, hot technology topics, and competitive situations. The findings indicate that: (1) the innovation of ship power systems is more radical and concentrated in the fuel field represented by LNG technology, whereas technical innovation in the field of pure electric propulsion is more scattered. Small tonnage ships, underwater operations, and recreation technology are among its innovation hotspots. (2) Pure electric propulsion technology is dominated by combined innovation with other propulsion methods (hybrid propulsion technology) and Chinese universities have recently begun to lead this technology. (3) Fuel cells and remote control have become innovation hotspots. Fuel cell technology, which combines electric, fuel, and hybrid power technology, is now on the cutting edge of innovation and has the potential for disruptive innovation.
12
La Luna, Simone, Nicola Foletti, Luca Magni, Davide Zuin, and Filippo Maggi. "A Two-Phase Mass Flow Rate Model for Nitrous Oxide Based on Void Fraction." Aerospace 9, no. 12 (December 15, 2022): 828. http://dx.doi.org/10.3390/aerospace9120828.
Abstract:
In the field of space propulsion, self pressurized technology is an example of innovation capable of improving system performances through reduction of volumes and other optimizations. Potential applications are widespread and not limited to the propulsion panorama: from on-orbit maneuvering to in-orbit servicing, from refueling of satellites at the end of life to in situ resource exploitation for missions headed towards remote objects of the solar system. However, important drawbacks have been reported for these systems: modeling of fluids and thermal phenomena is complex, thus preventing accurate performance predictions. As a result, no comprehensive and accurate model capable of describing the dynamics of a self-pressurizing propellant tank has been developed so far. In this context, this paper proposes a two-phase mass flow rate model based on void fraction. N2O has been selected due to its use as a green and self-pressurized propellant for in-space propulsive applications. The aim of this paper is to describe the current mass flow rate models present in the literature for this fluid and compare the new model with the one proposed by Dyer. A model validation is also offered, and a test campaign is mentioned. Finally, preliminary results are shown and discussed: results are then compared with the ones obtained through the Dyer model, in order to retrieve a comprehensive comparison among the two simulation frameworks. Comments on the results are added, showing the improvements as well as the limitations of the proposed framework.
13
Peters, S. R., and A. M. Coles. "Technological Entrepreneurship and Firm Strategy: The Development and Commercialization of the Ballard Fuel Cell." International Journal of Entrepreneurship and Innovation 11, no. 1 (February 2010): 79–88. http://dx.doi.org/10.5367/000000010790772412.
Abstract:
An entrepreneurial strategy has been identified as playing a key role in radical innovation due to the risk-taking nature of the entrepreneurial firm. However, less attention has been paid to the factors that are critical to the success of such innovations by small firms in which these occur. The Schumpeterian idea of visionary individuals who can both operate in the world of advanced engineering and take on a business role as part of a global industry still appears to be essential. This article focuses on the fate of one such individual, Geoffrey Ballard, who has played a pioneering role in developing and commercializing fuel cells for vehicle propulsion.
14
Grosso, Monica, Fabio Luis Marques dos Santos, Konstantinos Gkoumas, Marcin Stępniak, and Ferenc Pekár. "The Role of Research and Innovation in Europe for the Decarbonisation of Waterborne Transport." Sustainability 13, no. 18 (September 19, 2021): 10447. http://dx.doi.org/10.3390/su131810447.
Abstract:
Waterborne transport contributes to around 14% of the overall greenhouse gas emissions of transport in the European Union and it is among the most efficient modes of transport. Nonetheless, considering the aim of making the European Union carbon-neutral by 2050 and the fundamental role of waterborne transport within the European economy, effort is needed to reduce its environmental impact. This paper provides an assessment of research and innovation measures aiming at decreasing waterborne transport’s CO2 emissions by assessing European projects based on the European Commission’s Transport Research and Innovation Monitoring and Information System (TRIMIS). Additionally, it provides an outlook of the evolution of scientific publications and intellectual property activity in the area. The review of project findings suggests that there is no single measure which can be considered as a problem solver in the area of the reduction of waterborne CO2 emissions, and only the combination of different innovations should enable reaching this goal. The highlighted potential innovations include further development of lightweight composite materials, innovative hull repair methods, wind assisted propulsion, engine efficiency, waste heat electrification, hydrogen and alternative fuels. The assessment shows prevalence of funding allocated to technological measures; however, non-technological ones, like improved vessel navigation and allocation systems, also show a great potential for the reduction of CO2 emissions and reduction of negative environmental impacts of waterborne transport.
15
Sampson, Ben. "A propulsion Mix-Up?" Aerospace Testing International 2018, no. 2 (June 2018): 92. http://dx.doi.org/10.12968/s1478-2774(23)50104-6.
16
Gino, D’Ovidio, and Lanzara Giovanni. "Innovations and performance of Italian UAQ4 superconducting magnetic levitated system." Transportation Systems and Technology 4, no. 2 (September 13, 2018): 19–29. http://dx.doi.org/10.17816/transsyst20184219-29.
Abstract:
This article concerned with technological innovations and performance of the UAQ4 Italian maglev train project which aims mainly to reduce energy consumption by eliminating any ordinary resistance to motion (magnetic drag included), except the aerodynamic drag if it operates in atmospheric environment.
The technological feasibility of the UAQ4 suspension and propulsion devices has been patented and successfully laboratory tested.
The train architecture and the work’s principles of suspension and propulsion devices are all innovative, with concepts and technologies close to the aeronautical transport system.
17
Stawiarska, Ewa. "Management system for innovations created in the open model (with managerial tools)." Scientific Papers of Silesian University of Technology. Organization and Management Series 2023, no. 166 (2023): 731–68. http://dx.doi.org/10.29119/1641-3466.2022.166.47.
Abstract:
Purpose: The main objective of the article was to defined an innovation management system, which consist of: 1. Subsystem for managing their own innovative maturity. 2. Subsystem for managing the processes of obtaining product innovations from suppliers. 3. Subsystem for innovative maturity management of suppliers from the supply chain and networks of cooperating companies. 4. Subsystem for innovation performance management. The results of the literature and empirical research formed the basis for the development and test of two subsystems: Subsystem for managing their own innovative maturity. Subsystem for innovative maturity management of suppliers from the supply chain and networks of cooperating companies. Design/methodology/approach: The main objective of the literature study was to prepare tools to review the elements, with consist of the innovation management subsystems. The main objective of the own research was to compare the elements of innovation management used by the three automotive concerns that produce propulsion systems in Poland. Comparing the elements used allowed the defined a complex model of a network and supply chain innovation management system (especially the two subsystems and propose to retrofit them). The proposed research tools can too be used to assess the maturity for managing innovations arising in collaboration. The tools will also serve as an inspiration (for manager R&D) for supplementing a functioning system with missing elements. Findings: The first chapter presents the importance of developing a system from a theoretical, methodological and empirical point of view. The second chapter presents reserch methodology. The appendices 1 and 2 present the author's managerial tools for evaluative assessment of the two subsystems belong to innovation management system. The third chapter presents the results of surveys conducted using the developed managerial tools. Research limitations/implications: Research limitations/implications: The main purpose of the work was to develop a systemic innovation management model for the supply chain in the automotive industry and to assess the possibility of its implementation in business practice. This goal was partially achieved. The possibility of implementing a systemic model only at car manufacturers was examined. The enterprises cooperating in the supply chain (suppliers, customers) were not examined. In connection with the above, it can be stated that two subsystems have been verified (subsystem for managing their own innovative maturity; subsystem for innovative maturity management of suppliers from the supply chain). The others will be the subject of further research. Keywords: Innovation management, OI Open innovation model.
18
Tangora, Michael. "The Future of Marine Propulsion: “Reading the Propulsion Crystal Ball”." Marine Technology Society Journal 47, no. 5 (September 1, 2013): 51–55. http://dx.doi.org/10.4031/mtsj.47.5.14.
Abstract:
AbstractThe marine industry is headed into a period of uncertainty as both environmental restrictions and rising fuel prices simultaneously converge unlike any time in its past. Yet at the same time, innovations in propulsion solutions have allowed the industry to keep pace with demands thus far, as the demand signal continues for both efficient propulsion designs as well as lower overall emissions. The growing calls for environmental compliance, and its origins will be examined, as well as solutions that will reduce propulsion emissions. New regulations and fuels with lower sulfur content will require reconfiguration of the propulsion plants. This paper primarily discusses both the background of the challenges that the industry will be facing as well as available solutions. Both the marine industry as well as the military will be reviewed.
19
POHL, HANS. "INTERPARADIGMATIC HYBRIDS: A NEW THEORETICAL CONCEPT WHEN ADDRESSING PARADIGMATIC SHIFTS IN TECHNOLOGY." International Journal of Innovation and Technology Management 07, no. 04 (December 2010): 353–75. http://dx.doi.org/10.1142/s0219877010002057.
Abstract:
Paradigmatic shifts are challenging and consequently considerable efforts have been made to find concepts relating to the innovation process which lead from one paradigm to the next. This paper takes its inspiration from previous literature and studies of more than incremental innovations in the automotive industry. It outlines the concept of an interparadigmatic hybrid as a temporary combination (in one product or service) of technologies from an existing and a future paradigm in a way that facilitates the development toward the future paradigm. The proposed concept is tested on the product level using empirical data from the automotive industry, where it is assumed that hybrid electric vehicle technologies have the role of an interparadigmatic hybrid in the potential shift from the internal combustion engine to the paradigm of "pure" electric propulsion. The conclusions include an argument for the usefulness of the proposed concept for corporate managers, and perhaps even more so for policymakers and researchers, as it provides long-term strategic guidance and a (techno)logical order.
20
Shin, Seungmin, Jong-hwa Park, Yong-pyo Hong, and Kyungwon Oh. "Propulsion System of R.O.K.N Warships & Future of Propulsion System." Journal of the Korean Society of Propulsion Engineers 25, no. 6 (December 31, 2021): 53–59. http://dx.doi.org/10.6108/kspe.2021.25.6.053.
21
Holmfeld, John D., and Virginia P. Dawson. "Engines and Innovation: Lewis Laboratory and American Propulsion Technology." Technology and Culture 34, no. 4 (October 1993): 968. http://dx.doi.org/10.2307/3106447.
22
Yu, Hao, Wentian Tang, Guanyu Mu, Haocheng Wang, Xiaocong Chang, Huijuan Dong, Liqun Qi, Guangyu Zhang, and Tianlong Li. "Micro-/Nanorobots Propelled by Oscillating Magnetic Fields." Micromachines 9, no. 11 (October 23, 2018): 540. http://dx.doi.org/10.3390/mi9110540.
Abstract:
Recent strides in micro- and nanomanufacturing technologies have sparked the development of micro-/nanorobots with enhanced power and functionality. Due to the advantages of on-demand motion control, long lifetime, and great biocompatibility, magnetic propelled micro-/nanorobots have exhibited considerable promise in the fields of drug delivery, biosensing, bioimaging, and environmental remediation. The magnetic fields which provide energy for propulsion can be categorized into rotating and oscillating magnetic fields. In this review, recent developments in oscillating magnetic propelled micro-/nanorobot fabrication techniques (such as electrodeposition, self-assembly, electron beam evaporation, and three-dimensional (3D) direct laser writing) are summarized. The motion mechanism of oscillating magnetic propelled micro-/nanorobots are also discussed, including wagging propulsion, surface walker propulsion, and scallop propulsion. With continuous innovation, micro-/nanorobots can become a promising candidate for future applications in the biomedical field. As a step toward designing and building such micro-/nanorobots, several types of common fabrication techniques are briefly introduced. Then, we focus on three propulsion mechanisms of micro-/nanorobots in oscillation magnetic fields: (1) wagging propulsion; (2) surface walker; and (3) scallop propulsion. Finally, a summary table is provided to compare the abilities of different micro-/nanorobots driven by oscillating magnetic fields.
23
Lev, Dan R. "Innovation in the development of plasma propulsion devices in Israel." Journal of Physics: Conference Series 825 (April 12, 2017): 012008. http://dx.doi.org/10.1088/1742-6596/825/1/012008.
24
Normand, Thibaud, and Éric Dalbies. "Les défis de la propulsion aéronautique décarbonée." Annales des Mines - Réalités industrielles Mai 2024, no. 2 (June 14, 2024): 56–60. http://dx.doi.org/10.3917/rindu1.242.0056.
Abstract:
L’engagement du secteur aérien d’atteindre la neutralité carbone d’ici 2050 suppose un effort sans précédent sur l’efficacité énergétique des avions, en complément de l’usage des carburants durables. Ce défi est à l’origine d’un foisonnement d’innovations en cours dans le domaine de la propulsion aéronautique. La propulsion électrique ou hybride, sous des formes variées, va irriguer tous les segments aériens : l’aviation générale sert ainsi de terrain d’expérimentation pour des technologies qui contribueront à réduire la consommation des prochains moteurs d’avions commerciaux. D’un point de vue climatique, l’enjeu principal réside dans la propulsion de la prochaine génération d’avions court-moyen-courriers, succédant à l’Airbus A320neo et au Boeing 737 MAX. Safran et son partenaire GE Aerospace s’y préparent au travers du programme technologique RISE, qui recouvre le développement de nombreuses innovations de rupture et permet d’initier la mobilisation de toute la filière.
25
Martinazzo, Francesco. "INNOVATION AND CHANGES IN THE DIDACTIC SPACE." MATTER: International Journal of Science and Technology 8, no. 1 (March 15, 2022): 33–51. http://dx.doi.org/10.20319/mijst.2022.81.3351.
Abstract:
In Italy, the theme of the school, and more generally of education in the broadest sense, already in turmoil before the epidemic, seems to be exploding today in all its urgency, both because of the instances - above all pedagogical - of transformation brought by the pandemic itself (which from this point of view has acted as a catalyst), and because of the uncertain consequences of a building heritage that now largely needs to be restored, because it is architecturally and technologically inadequate. This has led to the structuring of a literature review that takes into account two main time spans: on the one hand, that of the 1960s-1970s (often called "the golden age of school"), investigated through the international architectural journals of that period, where the typology-technology problem emerges strongly; on the other hand, the selection (through Scopus, WoS, etc.) of current or recent studies and pedagogical experiences related to new technologies. The criterion for the choice of case studies is therefore based on their propulsive potential in relation to today's transformation needs, seeking to consider the school as an organism and not merely as a set of functional parts (as much current literature does).
26
Martinazzo, Francesco. "INNOVATION AND CHANGES IN THE DIDACTIC SPACE." MATTER: International Journal of Science and Technology 8 (March 15, 2022): 33–51. http://dx.doi.org/10.20319/mijst.2022.8.3351.
Abstract:
In Italy, the theme of the school, and more generally of education in the broadest sense, already in turmoil before the epidemic, seems to be exploding today in all its urgency, both because of the instances - above all pedagogical - of transformation brought by the pandemic itself (which from this point of view has acted as a catalyst), and because of the uncertain consequences of a building heritage that now largely needs to be restored, because it is architecturally and technologically inadequate. This has led to the structuring of a literature review that takes into account two main time spans: on the one hand, that of the 1960s-1970s (often called "the golden age of school"), investigated through the international architectural journals of that period, where the typology-technology problem emerges strongly; on the other hand, the selection (through Scopus, WoS, etc.) of current or recent studies and pedagogical experiences related to new technologies. The criterion for the choice of case studies is therefore based on their propulsive potential in relation to today's transformation needs, seeking to consider the school as an organism and not merely as a set of functional parts (as much current literature does).
27
Bhattacharyya, S. K. "Smarter–lighter–greener: research innovations for the automotive sector." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 471, no. 2179 (July 2015): 20140938. http://dx.doi.org/10.1098/rspa.2014.0938.
Abstract:
This paper reviews the changing nature of research underpinning the revolution in the automotive sector. Legislation controlling vehicle emissions has brought urgency to research, so we are now noticing a more rapid development of new technologies than at any time in the past century. The light-weighting of structures, the refinement of advanced propulsion systems, the advent of new smart materials, and greater in-vehicle intelligence and connectivity with transport infrastructure all require a fundamental rethink of established technologies used for many decades—defining a range of new multi-disciplinary research challenges. While meeting escalating emission penalties, cars must also fulfil the human desire for speed, reliability, beauty, refinement and elegance, qualities that mark out the truly great automobile.
28
Scranton, Philip. "Technology‐Led Innovation: The Non‐Linearity of US Jet Propulsion Development." History and Technology 22, no. 4 (December 2006): 337–67. http://dx.doi.org/10.1080/07341510601003065.
29
Gibbert, Michael, and Philip Scranton. "Constraints as sources of radical innovation? Insights from jet propulsion development." Management & Organizational History 4, no. 4 (November 2009): 385–99. http://dx.doi.org/10.1177/1744935909341781.
30
McGlone, M. E. "Transition of a Technology Base for Advanced Aircraft Gas Turbine Control Systems." Journal of Engineering for Gas Turbines and Power 120, no. 3 (July 1, 1998): 437–41. http://dx.doi.org/10.1115/1.2818163.
Abstract:
Technology assessments during the 1980s projected the development of advanced military fighter aircraft that would require propulsion systems that could accommodate multimission capability with super maneuverability. These propulsion systems would be required to provide significantly improved thrust to weight, reduced thrust specific fuel consumption, and up and away thrust vectoring capabilities. Digital electronic control systems with significantly expanded capabilities would be required to handle these multifunction control actuation systems, to integrate them with flight control systems, and to provide fail-operational capability. This paper will discuss the challenges that were presented to propulsion system control designers, the innovation of technology to address these challenges, and the transition of that technology to production readiness. Technology advancements will be discussed in the area of digital electronic control capability and packaging, advanced fuel management systems, high pressure fuel hydraulic actuation systems for multifunction nozzles, integrated flight propulsion controls, and higher-order language software development tools. Each of these areas provided unique opportunities where technology development programs and flight prototyping carried concepts to reality.
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Sullivan, Brendan, and Monica Rossi. "AN SE BASED MARITIME VESSEL DEVELOPMENT FRAMEWORK FOR CHANGEABLE PROPULSION SYSTEMS." Proceedings of the Design Society 3 (June 19, 2023): 555–64. http://dx.doi.org/10.1017/pds.2023.56.
Abstract:
AbstractReducing Greenhouse Gas Emissions from vessels is one of the greatest challenges the maritime industry is currently facing. International Maritime Organization has set the goal of reducing CO2 emissions from international shipping by at least 40% by 2030, compared to 2008. Emissions regulations are also leading to a progressive reduction of ships life span, together with a decrease in economic value. To cope with these challenges, the preferred strategy suggested by IMO for new vessels -Energy Efficiency Design Index- aims at increasing the energy efficiency over time by stimulating innovation and continuous development of technical elements. In this context, ship builders are indirectly led to develop vessels that will be “changeable” in terms of propulsion systems over time. This paper presents a conceptual framework to maritime vessels for propulsion system changeability, which integrates contributions from literature review with the knowledge of design thinking experts and precious insights of maritime industry professionals. The aim of this framework is support the integration of renewable fuel sources for vessel propulsion systems through an extended value approach, while improving propulsion efficiency over time.
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Kiran, Abhishek, Bahareh Zaghari, Timoleon Kipouros, and Ricardo Jose Nunes Dos Reis. "Application of Model-Based Systems Engineering for the Integration of Electric Engines in Electrified Aircraft." Journal of Physics: Conference Series 2526, no. 1 (June 1, 2023): 012025. http://dx.doi.org/10.1088/1742-6596/2526/1/012025.
Abstract:
Abstract The objective of green, carbon-neutral flights is propelling the innovation of newer propulsion systems. With this increased development of an interdisciplinary form of propulsion for aircraft, the integration burdens and efforts intensify. In literature, it is estimated that it takes 10-15 years to design and develop an aircraft. The expected date of entry for any hybrid electric aircraft is 2035-2040. Any innovation and effort to cut this time by any degree should be explored and analysed. One of the techniques that have the potential to help fast-track the research and development of interdisciplinary systems is Model-based System Engineering (MBSE). Various studies have shown the benefit of employing a model-based design strategy. The focus case study relates to the integration of the electric machine and the propeller, along with related sub-systems. For Hybrid Electric Propulsion (HEP), the electric machine and propeller need to be integrated and their interaction to be analysed. MBSE is proposed as a methodology that would help streamline the process of design and integration of the two systems. This study documents the exploration of connecting MBSE with current simulation and modelling of sub-systems in order to ensure the fulfilment of stakeholder needs and full system effectiveness. This paper establishes the research problem, and the approach to be pursued, and gives notice of first developments and expected follow-up work.
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Ibrahim, Mahmoud, Anton Rassõlkin, Toomas Vaimann, and Ants Kallaste. "Overview on Digital Twin for Autonomous Electrical Vehicles Propulsion Drive System." Sustainability 14, no. 2 (January 6, 2022): 601. http://dx.doi.org/10.3390/su14020601.
Abstract:
The significant progress in the electric automotive industry brought a higher need for new technological innovations. Digital Twin (DT) is one of the hottest trends of the fourth industrial revolution. It allows representing physical assets under various operating conditions in a low-cost and zero-risk environment. DTs are used in many different fields from aerospace to healthcare. However, one of the perspective applications of such technology is the automotive industry. This paper presents an overview of the implementation of DT technology in electric vehicles (EV) propulsion drive systems. A general review of DT technology is supplemented with main applications analysis and comparison between different simulation technologies. Primary attention is given to the adaptation of DT technology for EV propulsion drive systems.
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Yang, Ziyi. "Feasibility analysis of solar electric vehicles." Applied and Computational Engineering 59, no. 1 (May 7, 2024): 247–52. http://dx.doi.org/10.54254/2755-2721/59/20240813.
Abstract:
Solar-powered cars offer a compelling solution to the challenges of conventional transportation, utilizing solar cells to convert sunlight into clean and renewable energy for propulsion. This paper explores the principles, advantages, and challenges of solar cars while examining their evolving landscape in the automotive industry. Solar cars are celebrated for their environmental benefits, offering true zero carbon dioxide emissions, resource conservation, and minimal maintenance. Moreover, they significantly contribute to noise reduction, offering a quieter driving experience. Despite these advantages, solar cars face challenges that hinder their widespread adoption. Weighty solar panels limit driving range, and energy production often falls short of consumption during operation. Charging infrastructure remains a concern, especially in comparison to the convenience of refueling traditional vehicles. However, innovations such as the Lightyear One prototype demonstrate the potential for long-range solar-powered vehicles, while the feasibility of solar hybrid cars is a subject of ongoing discussion. Continuous advancements in solar cell technology, particularly silicon-based cells, hold promise for improving efficiency and cost-effectiveness. Conclusively, solar-powered cars represent a sustainable and environmentally conscious future for transportation. With research, technological innovation, and global collaboration, solar vehicles have the potential to transition from promising prototypes to practical and accessible alternatives, contributing to a cleaner and greener planet.
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Abramowicz-Gerigk, Teresa, and Zbigniew Burciu. "Design and Operational Innovations in Adapting the Existing Merchant River Fleet to Cost-Effective Shipping." Polish Maritime Research 26, no. 4 (December 1, 2019): 157–64. http://dx.doi.org/10.2478/pomr-2019-0078.
Abstract:
Abstract Modernisation of the existing river fleet adapted for the local conditions of the Middle and Lower Vistula can be considered as a solution to slow down the progressive decrease of river transport in this area. The implementation of technical improvements, smart technologies and enhancement of transport performance may partially solve the problem of growing demand for multimodal transport of containers and oversized loads in a shorter perspective than the expected period of planned revitalisation of the river. The paper presents investigations on the modernisation of river convoys adapted to the current navigational conditions of the Lower Vistula. The different options have been discussed by the authors with river fleet operators and the best recognised solution was agreed to be the use of river convoys combining modernised motor barges and the pushed barges previously used in this area. Improvement of the transport profitability, reduction of fuel consumption, air pollution and noise can be achieved at minimum costs by modernisation of the main power-propulsion systems of outdated motor barges and the implementation of innovative steering systems on pushed barges. The demand for power-propulsion and manoeuvring performance of modernised convoys is discussed in the paper.
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Cho, Namkyung, and Sooseok Yang. "Investigation of Nuclear Space Propulsion Technology." Journal of the Korean Society of Propulsion Engineers 27, no. 5 (December 31, 2023): 65–75. http://dx.doi.org/10.6108/kspe.2023.27.5.065.
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Sandjaja, Irfan Eko, I. Made Ariana, Erwandi Erwandi, Mahendra Indiaryanto, Muryadin Muryadin, and Berlian Arswendo Adietya. "Numerical Analysis of The Effects of Propeller High Thrust Distribution on Propulsion System Performance." Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan 20, no. 3 (August 3, 2023): 309–19. http://dx.doi.org/10.14710/kapal.v20i3.54715.
Abstract:
High ship propulsion performance is the main goal of designers, propeller is one component of the propulsion system that also affects the performance of the propulsion. In propeller planning, it is necessary to pay attention to the efficiency of the propeller, in addition to reducing ship operating costs and reducing CO2 gas emissions which is one of the requirements for ships built above 2013, the rules have been made into the Energy Efficiency Design Index (EEDI) standard. At this time the propeller that is widely used is the B Series propeller including the propeller design used on mini LNG ships, namely the B6.40 propeller, the B Series propeller has a pitch character from the Wageningen Propeller Series study. Innovations are made to get better propeller efficiency by varying the pitch distribution. The B6.40 propeller of the standard constant pitch type was modified to B6.40 variable pitch (high thrust). Propellers with high thrust have better efficiency especially for non-fast boats. This study was conducted to obtain the best propeller efficiency of a constant pitch propeller and three high thrust propeller units using Numeca's Computational Fluid Dynamics (CFD) numerical self-propulsion test. For validation of the simulation program by comparing the results of the open water test B6.40 Wageningen while resistance validation by comparing the ship resistance model test. The results of the self-propulsion test using Disc Actuator show that the propulsion coefficient (PC) of Modified-2 and Modified-3 high thrust propellers is better when compared to constant pitch. The magnitude of the increase in PC value reaches ± 4% higher than the constant pitch type on the Modified-3 propeller.
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Lana, Yuda Safri, Sjafrie Sjamsoeddin, and Ansori Ansori. "Selection of Propulsion System for Electric Amphibious Bus to Alleviate Traffic Congestion in the Jabodetabek Area." Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan 20, no. 3 (August 4, 2023): 279–87. http://dx.doi.org/10.14710/kapal.v20i3.52348.
Abstract:
High vehicle growth in Jakarta is not balanced with traffic growth, the level of congestion in Jakarta continues to increase every year. To overcome this congestion, innovation is needed to utilize the river as a means of public transportation. The amphibious bus is an alternative public transportation option in the Jabodetabek area to break congestion. The amphibious bus design must be supported by a propulsion system that can operate on land and water. The amphibious bus propulsion system is a must, according to river conditions and operational requirements. The selection of the drive system is carried out by means of analysis The driving criteria factors needed according to the specifications of the amphibious bus are power, efficiency, size, cost, and maneuverability. These criteria become indicators in determining the type of mover. This study aims to select the prime mover system based on criteria and specification requirements. The selection uses the process hierarchy analysis (AHP) method by giving weight to the criteria for each driver, and type of mover in the water, namely waterjets, azimuth-podded, Paddle Wheels, Cycloidal Propellers and propulsion on land diesel engines, gasoline engines, and electric engines. The results showed that the order of the propulsion selection criteria was propulsion power being the top priority, followed by maneuverability, energy efficiency, cost, operational and investment, and propulsion size and weight. The results of the AHP show that the main options are propulsion systems in water, namely waterjets and diesel engine propulsion systems on land. System Water Jet has a propulsion power of 1000 kW, has high maneuverability, energy efficiency of 85%, and a maximum speed of 60 Km/hour so it can meet the specifications of an amphibious bus drive. For operations on land, the main choice of propulsion system for amphibious buses is a diesel engine with a power of 250 HP and 800 Nm of torque providing strong torque and a wide cruising range. This system has a range of up to 800 km, a maximum speed of 120 km/h, and exhaust emissions of Euro 5.
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Siqintana, Siqintana, Oyuntsetseg Luvsandondov, Batkhuyag Ganbaatar, Saiyinjiya Saiyinjiya, and Bolor Khurelchuluun. "Evaluation of Policy Implementation to Support Innovation in Industrial Sector: A Case Study of the Textile Industry in Inner Mongolia, China." International Journal of Science and Business 28, no. 1 (2023): 34–55. http://dx.doi.org/10.58970/ijsb.2233.
Abstract:
In the contemporary context, innovation stands as the primary propulsive agent in steering the course of social and economic advancement within any given nation. In accordance with prevailing global trends, nations have attained noteworthy accomplishments through the formulation and execution of innovation policies designed to enhance the progress of their domestic and sector-specific landscapes. The efficacy of any policy hinges upon its formulation with a forward-looking vision, steadfast implementation, and rigorous evaluation of outcomes. Innovation policy, as a pivotal instrument, assumes a guiding role in the advancement of a nation, region, and industry, informed by scientific and technological achievements, knowledge reservoirs, and innovative endeavors. Commencing in the latter part of the 1970s, China embarked upon a trajectory characterized by the implementation of an open economic policy. Within this overarching framework, notable emphasis has been placed on the widespread assimilation of scientific and technological progress, with particular emphasis on the industrial domain. This commitment to fostering technological prowess culminated in the formal adoption of the "Innovation-Oriented Economic Development Strategy" in the year 2006. This milestone document represents the government's inaugural articulation of its primary policy directive pertaining to innovation-driven economic development. The focus of this study centers on the examination of relatively large factories engaged in the production of wool and cashmere products within the textile industry of Inner Mongolia, China. The research encompasses an investigation into the developmental experiences related to innovation within this sector. Furthermore, it includes an analysis of the innovation policy endorsed by the government for this industry, along with an evaluation of its practical implementation.
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Chen, Wenzhuo, Yibing Zhang, and Huiying Liu. "Design of Offshore Wind-Powered Pump-Propelled Environmentally Friendly Ship Based on Spiral Vertical-Axis Wind Turbine." Highlights in Science, Engineering and Technology 83 (February 27, 2024): 822–35. http://dx.doi.org/10.54097/d44v8m65.
Abstract:
In this study, a new concept offshore wind-powered pump-propelled environmentally friendly vessel is designed for offshore navigation to protect the marine environment. The ship adopts shaft-vertical wind power generation technology and pump-propulsion technology, which will greatly promote the upgrading and innovation of existing ships in terms of power. In addition, the launch of the vessel will further promote the development of marine power batteries and the application of vectorial magnetic hydrodynamic propulsion technology. By adopting this environmentally friendly ship, environmental pollution in offshore coastal areas can be reduced and marine protection can be promoted. If the ship is successfully launched, it will make an important contribution to China's shipping industry and environmental protection.
41
Danko, Gene A. "By Leaps and Bounds: The Realization of Jet Propulsion through Innovative Materials and Design." Key Engineering Materials 380 (March 2008): 135–46. http://dx.doi.org/10.4028/www.scientific.net/kem.380.135.
Abstract:
Innovations in gas turbine engine design and materials are tracked from the earliest days of functional engines to the present. Materials and design are shown to be mutually interdependent, driving engine capability to unprecedented levels of performance with each succeeding product generation.
42
Martin, James C., Christopher J. Davidson, and Eric R. Pardyjak. "Understanding Sprint-Cycling Performance: The Integration of Muscle Power, Resistance, and Modeling." International Journal of Sports Physiology and Performance 2, no. 1 (March 2007): 5–21. http://dx.doi.org/10.1123/ijspp.2.1.5.
Abstract:
Sprint-cycling performance is paramount to competitive success in over half the world-championship and Olympic races in the sport of cycling. This review examines the current knowledge behind the interaction of propulsive and resistive forces that determine sprint performance. Because of recent innovation in field power-measuring devices, actual data from both elite track- and road-cycling sprint performances provide additional insight into key performance determinants and allow for the construction of complex models of sprint-cycling performance suitable for forward integration. Modeling of various strategic scenarios using a variety of field and laboratory data can highlight the relative value for certain tactically driven choices during competition.
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Et al., Santosh Yerasuri. "AI-Integrated Mechanical Engineering Solutions for Next-Gen Rocket Propulsion Systems." Tuijin Jishu/Journal of Propulsion Technology 44, no. 3 (September 11, 2023): 485–93. http://dx.doi.org/10.52783/tjjpt.v44.i3.320.
Abstract:
The integration of Artificial Intelligence (AI) into the field of mechanical engineering has heralded a new era of innovation and efficiency, particularly in the realm of next-generation rocket propulsion systems. This abstract explores the transformative impact of AI in the development and optimization of rocket propulsion technologies, highlighting its potential to revolutionize the aerospace industry. AI-powered mechanical engineering solutions have emerged as a game-changer in the design and manufacturing of rocket propulsion systems. Through advanced machine learning algorithms and predictive analytics, AI can significantly enhance the efficiency of the development process. By analyzing vast datasets of historical performance data, AI can identify patterns and correlations that human engineers might overlook. This allows for the creation of propulsion systems that are not only more powerful but also safer and more reliable. AI plays a pivotal role in the optimization of rocket engines. Traditional optimization methods often require extensive computational resources and time-consuming simulations. AI, on the other hand, leverages neural networks and genetic algorithms to rapidly iterate through design possibilities, resulting in propulsion systems that are finely tuned for maximum performance and fuel efficiency. This not only reduces development costs but also accelerates the time-to-market for next-gen rocket propulsion systems. Safety is paramount in rocket propulsion systems, and AI offers innovative solutions in this regard as well. AI algorithms can continuously monitor and analyze sensor data during rocket launches, quickly identifying anomalies and potential issues.[1] This real-time monitoring allows for immediate corrective actions, reducing the risk of catastrophic failures and ensuring the safety of crewed and uncrewed missions. AI-integrated mechanical engineering solutions enable autonomous maintenance and diagnostics of propulsion systems. Through predictive maintenance models, AI can predict when components are likely to fail and schedule maintenance activities accordingly. This proactive approach not only extends the lifespan of propulsion systems but also minimizes downtime and operational disruptions.
44
Holmfeld, John D. "Engines and Innovation: Lewis Laboratory and American Propulsion Technology by Virginia P. Dawson." Technology and Culture 34, no. 4 (October 1993): 968–69. http://dx.doi.org/10.1353/tech.1993.0038.
45
Sternberg, Robert J., James C. Kaufman, and Jean E. Pretz. "A Propulsion Model of Creative Leadership." Creativity and Innovation Management 13, no. 3 (September 2004): 145–53. http://dx.doi.org/10.1111/j.0963-1690.2004.00304.x.
46
Amerini, Alberto, Leonardo Langone, Riccardo Vadi, and Antonio Andreini. "Assessment of a hybrid propulsion system for short-mid range application with a low-order code." E3S Web of Conferences 312 (2021): 11005. http://dx.doi.org/10.1051/e3sconf/202131211005.
Abstract:
The increase in air traffic expected in the next years must be accompanied by innovation to ensure the lowest possible environmental impact. Hybrid electric-thermal propulsion systems are currently being investigated and could represent a breakthrough for environmental sustainability in the sector. However, the transition to electric propulsion remains challenging due to the current level of energy density related to storage systems, the additional components associated with power conversion and control systems, not to mention the cost of all the associated equipment. The purpose of this study is to carry out a preliminary assessment of a hybrid propulsion system for a short-mid range aircraft. This study investigates the series hybrid configuration, where a turboshaft, a high temperature superconducting (HTS) electric motor, batteries and power converters interact to provide the necessary propulsion for flight. A zero-dimensional procedure is developed to estimate the mass and efficiency of the powertrain components for a selected flight mission. Thermal engines are modeled with the low-order code and coupled with the components of the electric system through a python routine. A comparison in terms of weight and emissions is reported for the designed hybrid propulsion system and the conventional one. The analysis shows that the weight of the two propulsion systems is similar but, the presence of batteries, even considering a higher level of technology than the current one, leads to a significant increase in the weight of the hybrid aircraft. The second part of the study focuses on pollutant emissions, showing that the hybrid system can reduce CO2 emissions by 58% and NOx emissions by 68% compared to the conventional system. Despite the excellent premise, the reduction in payload for the hybrid aircraft causes a reduction in pollutant emissions per passenger only for NOx. For this reason, further technological improvement is needed to make hybrid propulsion advantageous in terms of both payload and pollutant emissions.
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Shelia, Shelia, Sriati Sriati, and Indah Widiastuti. "Perceptions of Innovation Characteristics Converter Kit Machine and Its Influence on Fishermen's Income in Palembang City." Journal of Global Sustainable Agriculture 4, no. 1 (December 27, 2023): 80. http://dx.doi.org/10.32502/jgsa.v4i1.7563.
Abstract:
The Oil to Gas Fuel Conversion Program is an energy diversification policy carried out by the government to reduce fishing communities' dependence on oil fuel, by assisting in the form of converter kit engines. The converter kit engine innovation is believed to be more efficient and effective than the ordinary boat propulsion engines previously used by fishermen. This research aims to identify the socio-economic characteristics of fishermen, analyze fishermen's perceptions of the characteristics of converter kit engine innovation, and analyze the relationship between perceptions and fishermen's income. The method in this research is a survey method. The research subjects consisted of 51 fishermen who received converter kit engines. Data was collected using a questionnaire designed using a Likert scale. The research results showed that the achievement value of fishermen's perception of the characteristics of converter kit engine innovation was 92.03% (very high). The correlation test results between the variables of fishermen's perceptions of the characteristics of converter kit engine innovation and fishermen's income have a fragile and insignificant relationship with a negative correlation coefficient or in the opposite direction of -0.185.Keywords: gas; innovation; conversion; converter kit; perception.
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Stan, Cornel. "Automotive Propulsion Systems — Alternatives, Combinations and Trends." ATZautotechnology 2, no. 3 (May 2002): 60–63. http://dx.doi.org/10.1007/bf03246697.
49
Zueva, Olga V. "Space tourism: achievements and innovations." Vestnik of Samara University. Economics and Management 12, no. 4 (December 30, 2021): 57–65. http://dx.doi.org/10.18287/2542-0461-2021-12-4-57-65.
Abstract:
The article explores theoretical issues related to the need to promote new directions in the development of space. The author notes that, on the world market, Russia occupies a leading position in the sale of space products; these are propulsion systems and sets of technological equipment that can form the basis for creating new conditions for existence in outer space. The author notes that at the present stage of the "race" for space, the largest countries of the world devote great importance to the search for new ways of developing the space industry and space tourism can become a tool for solving many problems of domestic cosmonautics. The widespread use of space tourism products will become an incentive for the development and support of both cosmonautics and various sectors of the national economy as a whole, provide a qualitatively new level of international cooperation tasks, and strengthen their positions in the world community. The article examines the theoretical issues of the possibility of organizing space tourism. The necessity of its development as a completely new phenomenon in the life of society is shown. The paper briefly reflects the current state of the development of the world's outer space and shows new ways of using it in such a direction as space tourism. The assessment of the necessary conditions for its development is given. According to the author, the increasing demand for space services enables countries to create conditions for terrestrial (virtual) or near-Earth (orbital, suborbital and lunar) travel. The capabilities of the leading space powers available today show the realism of these trips. The article reflects that the increasing demand for space entertainment (flying in zero gravity, flying on L-29 and L-39 fighter jets, space tours to Baikonur and the Vostochny cosmodrome) is pushing for the creation of special economic zones with the development of road transport infrastructure, space industry and comic tourism. And this in turn gives an impetus to the creation of additional jobs. As a result of the study, the conclusion is formulated that those countries that enter the global space market of tourist services will be able to attract not only public, but also private investments in the development of outer space. Space is a new horizon for all mankind and this sphere will steadily develop, and at the same time have a tremendous impact on the economic level of the country.
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Yuan, Zongsong, Yuntong Dai, Junxiu Liu, and Kai Li. "Light-Fueled Self-Propulsion of Liquid Crystal Elastomer-Engined Automobiles in Zero-Energy Modes." Mathematics 12, no. 13 (July 4, 2024): 2109. http://dx.doi.org/10.3390/math12132109.
Abstract:
The defining attribute of self-excited motion is its capability to extract energy from a stable environment and regulate it autonomously, making it an extremely promising innovation for microdevices, autonomous robotics, sensor technologies, and energy generation. Based on the concept of an automobile, we propose a light-fueled self-propulsion of liquid crystal elastomer-engined automobiles in zero-energy mode. This system utilizes a wheel comprising a liquid crystal elastomer (LCE) turntable as an engine, a wheel with conventional material and a linkage. The dynamic behavior of the self-propulsion automobile under steady illumination is analyzed by integrating a nonlinear theoretical model with an established photothermally responsive LCE model. We performed the analysis using the fourth-order Runge–Kutta method. The numerical findings demonstrate the presence of two separate motion patterns in the automobile system: a static pattern and a self-propulsion pattern. The correlation between the energy input and energy dissipation from damping is essential to sustain the repetitive motion of the system. This study delves deeper into the crucial requirements for initiating self-propulsion and examines the effect of critical system parameters on the motion of the system. The proposed system with zero-energy mode motions has the advantage of a simple structural design, easy control, low friction and stable kinematics, and it is very promising for many future uses, including energy harvesting, monitoring, soft robotics, medical devices, and micro- and nano-devices.