323,251 research outputs found
Investigating the Piaggio Avanti design using CEASIOM
No full textIn early steps of aircraft design the unification of configuration definition is important to avoid user–input errors. Also coupling with each other can strengthen different tools with different specifications simultaneously provided that the geometry definition is transferred with minimum data loss. This is vitally useful especially when geometry data is transferred in order to perform high–fidelity analysis. This paper reports the analysis for the pitch control of a three–lifting–surface aircraft Piaggio Avanti using CEASIOM, a tool–chain software for aircraft preliminary design, with the baseline configuration coming from the conceptual design code AAA, linked by a common name–space CPACS for the means of data collaboratio
Piaggio shift to Asia - understanding piaggio-s key drivers
No full textThis report, which intends to develop an Equity analysis of the company
Piaggio, will start with an Introduction, explaining the structure of the project
carried out as a master thesis. It explains the division between the joint report
and the individual report. Consequently, it’s presented the analysis developed
in terms of the company overview, with a special focus on the financial analysis.
It will also be approached with the performance of the competition in the same
period. After this analysis, it will be explained how the company is forecasted
to grow. The report will end with a multiple valuation
Plan estrategico de mercadeo de la empresa Monoblock S. A. para las motos Piaggio en Colombia
No full textEl presente trabajo consiste en definir las directrices para la formulación de un
Plan de mercadeo estratégico para las motos Piaggio en Colombia, considerando
que la empresa ensambladora de automotores Mono Block S.A. localizada en la
ciudad de Cartagena, observa que puede satisfacer las necesidades de
innovación y comodidad en el diseño de motos en el mercado nacional a través de
esta reconocida marca de motocicletas, para lo cual importaría sus piezas más
importantes y luego las ensamblaría en su planta ubicada en la zona industrial de
Mamonal en nuestra ciudad.
En este sentido, para el lanzamiento de las motos Piaggio en Colombia, el
presente trabajo plantea la definición de aspectos como planificación de la
estrategia de crecimiento, los segmentos de mercado propuestos, las estrategias
de posicionamiento que permitan lograr ventajas competitivas además de las
estrategias táctico-operativas para el precio, canales de distribución y promoción,
entre otros puntos de vital importancia en la definición de las directrices en la
formulación del Plan estratégico de mercadeo debidamente estructurado para las
motos Piaggio a nivel nacional.Incluye bibliografí
Follow-the-Leader Control Strategy for Azimuth Propulsion System on Surface Vessels
No full textThis paper presents an effective autonomous follow-the-leader strategy for Azimuthal Stern Drive vessels. The control logic has been investigated from a theoretical point of view. A line-of-sight algorithm is exploited to ensure yaw-check ability, while a speed-check feature is implemented to track the velocity of the target along the path. For this purpose, a linearised manoeuvrability model for azimuthal drive surface vessels is presented. A model-based control synthesis is proposed to ensure the stability of the closed-loop system and robust PID controllers are designed by using Linear Matrix Inequalities technique. The control strategy has been successively validated in two steps, initially by using simulation techniques, and then experimentally using an outdoor scenario with model scale tugs. The path planning, navigation, guidance and control modules are studied, detailed, and digitally implemented on-board of the model scale tugs. The models are supplied with GNSS+INS navigation system. Low-level management and control of Azimuthals angles and shaft revolutions is implemented on-board. High-level decen-tralised path planning, guidance, and control sequence evaluation are dealt with at a remote ground station. In particular, the presented follow-the-leader strategy meets the most generic needs of platooning convoys, and, in the specific instance, of Escort convoy tugs. The operative profile of the latter concerns long-lasting and routine chases with the continuous demand of tuning heading and speed to track the target vessels, until the rare occurrence of an emergency event. In a realistic scenario, the proposed control system would be beneficial for the tug master’s lucidity and alertness, while reducing avoidable risks. At the end of the paper, the results of the experimental campaign are shown to demonstrate the effectiveness of the proposed control logic.Transport Engineering and Logistic
A 3D-printed condom intrauterine balloon tamponade: Design, prototyping, and technical validation
No full textPost-partum haemorrhage is among the main causes of (preventable) mortality for women in low-resource settings (LRSs), where, in 2017, the mortality ratio was 462 out of every 100 000 live births, over 10 times higher than for high-resource settings. There are different treatments available for post-partum haemorrhage. The intrauterine balloon tamponade is a medical device that proved to be a simple and cost-effective approach. Currently, there are several balloon tamponades available, with different design and working principles. However, all these devices were designed for high-resource settings, presenting several aspects that could be inappropriate for many lower-income countries. This paper presents the results of a preclinical study aiming at informing the design, prototyping and validation of a 3D-printed intrauterine balloon tamponade concept, contributing towards the United Nation's Sustainable Development Goal 3: Good health and Well-being. Frugal engineering concepts and contextualised design techniques were applied throughout, to define the design requirements and specifications. The performance of the final prototype was validated against the requirements of the UK National Health System (NHS) technical guidelines and relevant literature, measuring the water leak and pressure drop over time, both open air and in a approximate uterus model. The resulting prototype is made up of six components, some of which are easy to retrieve, namely a water bottle, a silicone tube and an ordinary condom, while others can be manufactured locally using 3D printers, namely a modified bottle cap, a flow stopper and a valve for holding the condom in place. Validation testing bore promising results with no water or pressure leak open air, and minimal leaks in the approximate uterus model. This demonstrates that the 3D printed condom-based intrauterine balloon tamponade is performing well against the requirements and, when compared to the state of the art, it could be a more appropriate and more resilient solution to low-resource settings, as it bypasses the challenges in the supply of consumables and presents a greener option based on circular economy
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
On the universality of medical device regulations : the case of Benin
No full textBackground
Regulatory frameworks surrounding medical devices (MDs) and medical locations are of utter importance for safeguarding patients and users, and for granting a universal access to healthcare.
Currently, as the main existing regulatory frameworks are drafted by high-income countries, they pretend to be general and applicable globally, but fail to understand particular contexts, specifically those in low-resource settings (LRSs), resulting, therefore, inapplicable. In particular, LRSs present a varied situation, with legal transplants of guidelines from their previous colonial regimes. This apparently theoretical issue, is, effectively, a tangible and rising matter of concern, given the ever-increasing number of MD patent applications per year, as well as the appearance of low- and middle-income countries (LMICs) on the MD market itself.
This article will focus on the European Regulation on MDs 745/2017 and its applicability in LRSs, specifically presenting the case of Benin, a Sub-Saharan African country.
Methods
This work is based on a field study conducted in 2019 in Benin, which is particularly exemplar to show the complexity of the “legal transplantation” concept. A multidisciplinary approach, comprising the standard tools and methods of ethics, law, and biomedical engineering, was used to draft a heuristic hermeneutic framework, and to analyse related bioethical issues concerning Medical Device Regulations (MDRs) in LRSs, the role of Maintenance, and other sociological questions; as well as the rural population’s perception on MDs and health technologies, and the role of ethics in the hospitals of LRSs.
Results
The definition of these themes helped approach the local perspective and define the research questions. Downstream of the analysis of the Medical Devices Regulations, the Maintenance and other bioethical issues in Benin, the heuristic hermeneutic framework was created to guide a shift in the paradigm of law and regulation making, so as to make them more contextualised and inclusive, globally.
Conclusion
This article proposes a framework that will help policymakers take into account the particularism of each context, especially those of the most vulnerable countries, when drafting and issuing regulatory frameworks, promoting an ever-evolving model of universalis
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