Academic literature on the topic 'Electric engineering Safety measures'
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Journal articles on the topic "Electric engineering Safety measures"
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Yang, Xuying. "Common Fault Analysis and Prevention Measures in Building Electrical Installation." World Construction 4, no. 3 (September 17, 2015): 8. http://dx.doi.org/10.18686/wcj.v4i3.2.
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<p>Since the building of electrical facilities became more common, people paid more attention to the quality and safety of electric equipment, which led to a stricter requirement for building electrical installation. The installation of electrical engineering is closely related to the quality of the building itself, if too much carelessness is seen during the process of building the electrical facility, it would be prone to some quality problems and hence cannot ensure the safety of the user's life. This study will expound the cause and prevention measures of common faults in building electric installation engineering through common fault analysis of building electrical installation. Therefore, it is of great significance to pay special attention to the quality management of electrical installation engineering and develop electrical installation engineering by applicability, reliability, economy, beautiful appearance and convenience.</p>
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Yang, Xuying. "Common Fault Analysis and Prevention Measures in Building Electrical Installation." World Construction 4, no. 3 (September 17, 2015): 8. http://dx.doi.org/10.18686/wc.v4i3.2.
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<p>Since the building of electrical facilities became more common, people paid more attention to the quality and safety of electric equipment, which led to a stricter requirement for building electrical installation. The installation of electrical engineering is closely related to the quality of the building itself, if too much carelessness is seen during the process of building the electrical facility, it would be prone to some quality problems and hence cannot ensure the safety of the user's life. This study will expound the cause and prevention measures of common faults in building electric installation engineering through common fault analysis of building electrical installation. Therefore, it is of great significance to pay special attention to the quality management of electrical installation engineering and develop electrical installation engineering by applicability, reliability, economy, beautiful appearance and convenience.</p>
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Wu, Zhizhou, Xin Zeng, and Ling Wang. "A New Traffic Conflict Measure for Electric Bicycles at Intersections." Promet - Traffic&Transportation 32, no. 3 (May 11, 2020): 309–20. http://dx.doi.org/10.7307/ptt.v32i3.3222.
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As electric bicycles (e-bikes) are becoming popular in China, concerns have been raised about their safety conditions. A traffic conflict technique is commonly used in traffic safety analysis, and there are many conflict measures designed for cars. However, e-bikes have high flexibility to change speed and trajectories, which is different from cars, so the conflict measures defined for e-bikes need to be independently explored. Based on e-bike driving characteristics, this paper proposes a new measure, the Integrated Conflict Intensity (ICI), for traffic conflicts involving e-bikes at intersections. It measures the degree of dangerousness of a conflict process, with consideration of both conflict risk and conflict severity. Time to collision is used to measure the conflict risk. Relative kinetic energy is used to measure the conflict severity. ICI can be calculated based on video analysis. The method of determining ICI thresholds for three conflict levels (serious, less serious, and slight) and two conflict types (conflicts between two e-bikes, and conflicts between an e-bike and a car) is put forward based on the questionnaires about safety perception of e-bike riders, which is regarded as the criterion of e-bike safety conditions at intersections. The video recording and a questionnaire survey about conflicts involving e-bikes at intersections have been conducted, and the unified thresholds applicable to different intersections have been determined. It is verified that ICI and its thresholds meet the criterion of e-bike safety conditions. This work is expected to be used in the selection of intersections for safety improvement of e-bike traffic.
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Panova, Olena, Nataliia Burdeina, Kyrylo Nikolaiev, and Yana Biruk. "PLANNING AND IMPLEMENTATION OF ELECTROMAGNETIC SAFETY MEASURES IN INDUSTRIAL BUILDINGS AND STRUCTURE." JOURNAL of Donetsk mining institute, no. 2 (2020): 155–61. http://dx.doi.org/10.31474/1999-981x-2020-2-155-161.
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Objective. Identification of factors of non-productive origin that affect the electromagnetic situation in industrial buildings and the implementation of a sequence of measures to normalize it. Methods. Experimental study of the source of extraneous electromagnetic fields in buildings and structures that can adversely affect workers and sensitive devices in production. To do this, the means of finding such fields were identified and used. The state and description of electric power networks as well as the distribution of the intensity of high-frequency electromagnetic fields are generalized. Electromagnetic safety measures in the production of various purposes are analyzed and presented. Results. Industrial five-storey buildings were inspected for currents in metal structures. The results show that they have significant levels of electric currents in metal structures depending on the riser of the building. It is established that the precondition for the application of safety measures is the analysis of the state of electric power networks, the distribution of the intensity of high-frequency electromagnetic fields, etc. The levels of electromagnetic fields in partially shielded rooms have been experimentally established. Typical dependences of radiation intensity of mobile phones on the signal level from base stations are obtained. The conditions of normalization of the electromagnetic situation in individual rooms and the building as a whole are substantiated. Electromagnetic safety measures have been introduced. Scientific novelty. To minimize the impact of electrical networks on the electromagnetic environment in the building, it is advisable to upgrade it according to the scheme TN-S, or TN-C-S, which reduces the levels of uncompensated electric currents in the network and the corresponding magnetic fields. Practical significance. It is established that: a) it is obligatory to determine the presence of leakage electric currents on grounded bearing structures and engineering networks that generate magnetic fields of hygienically significant voltages; b) reducing the levels of these jets due to technical solutions further reduces the intensity of electro-like processes in metal structures; c) to reduce the levels of high-frequency electromagnetic fields in production facilities, which are formed due to the reflection and re-reflection of electromagnetic waves, it is advisable to use composite shielding materials with controlled absorption and reflection coefficients. This approach will systematize the overall electromagnetic background in the premises and the building as a whole.
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Chen, Jianhong, Kai Li, and Shan Yang. "Electric Vehicle Fire Risk Assessment Based on WBS-RBS and Fuzzy BN Coupling." Mathematics 10, no. 20 (October 14, 2022): 3799. http://dx.doi.org/10.3390/math10203799.
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(1) Background: In recent years, electric vehicle fire accidents have occurred frequently. Studying the risk factors leading to electric vehicle fire can take corresponding safety measures to reduce the occurrence of electric vehicle fire accidents. (2) Methods: The Work Breakdown Structure (WBS) was constructed to decompose the electric vehicle system, the Risk Breakdown Structure (RBS) was constructed to decompose the risk of electric vehicle fire accidents, a WBS-RBS coupling matrix was built to identify the risk factors that lead to electric vehicle fire accidents in the electric vehicle system, and the fuzzy Bayesian network was used to evaluate the risk of electric vehicle fire accidents. (3) Results: In this study, the electric vehicle was divided into four systems, and 15 risk factors leading to electric vehicle fire were found. The first risk factor was external collision ignition, followed by battery failure, artificial modification, battery-pack flooding, and charging equipment failure, and safety measures were proposed; (4) Conclusions: The results show that the WBS-RBS and fuzzy BN coupling research method can identify the risk factors leading to an electric vehicle fire, and the risk factors were ranked, providing a reference for the safety protection of electric vehicles.
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Ni, Yicheng. "Risk Control Analysis in Electric Power Engineering Project Management." Advances in Economics, Management and Political Sciences 18, no. 1 (September 13, 2023): 351–59. http://dx.doi.org/10.54254/2754-1169/18/20230097.
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With the development of social economy, the number and scale of electric power construction projects are increasing. Their contents are changing from "single" in the past to "diversified" at present. And the contents of project management are constantly being improved and updated. The function and structure of the electric power construction project in China are relatively complex, involving many factors. There are certain risks in safety, quality, investment, construction period and operating benefit. How to better solve the problems existing in the actual operation process and how to better manage power companies and improve the efficiency and economy of power company projects are the key issues that need to be considered. In order to ensure the economic and social benefits of electric power projects, improve their engineering quality, the project managers must analyze various possible risk factors in time during the construction of electric power projects, and take effective measures to minimize the risks.
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Mitolo, Massimo. "Is it Possible to Calculate Safety: Safety and Risk Analysis of Standard Protective Measures Against Electric Shock." IEEE Industry Applications Magazine 15, no. 3 (May 2009): 31–35. http://dx.doi.org/10.1109/mias.2009.932360.
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YABUSHITA, Fumihiro. "Safety Measures for Underground Railway." Journal of The Institute of Electrical Engineers of Japan 129, no. 4 (2009): 220–23. http://dx.doi.org/10.1541/ieejjournal.129.220.
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TAMURA, Hiroyuki. "Trend of Electric Fires and Safety Measures in Factories based on Fire Cases." Journal of The Institute of Electrical Engineers of Japan 142, no. 6 (June 1, 2022): 337–41. http://dx.doi.org/10.1541/ieejjournal.142.337.
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Kirana, Rizky Cahya, Nicco Avinta Purwanto, Nadana Ayzah Azis, Endra Joelianto, Sigit Puji Santosa, Bentang Arief Budiman, Le Hoa Nguyen, and Arjon Turnip. "Failure assessment in lithium-ion battery packs in electric vehicles using the failure modes and effects analysis (FMEA) approach." Journal of Mechatronics, Electrical Power, and Vehicular Technology 14, no. 1 (July 31, 2023): 94–104. http://dx.doi.org/10.14203/j.mev.2023.v14.94-104.
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The use of batteries in electric cars comes with inherent risks. As the crucial component of these vehicles, batteries must possess a highly dependable safety system to ensure the safety of users. To establish such a reliable safety system, a comprehensive analysis of potential battery failures is carried out. This research examines various failure modes and their effects, investigates the causes behind them, and quantifies the associated risks. The failure modes and effect analysis (FMEA) method is employed to classify these failures based on priority numbers. By studying 28 accident reports involving electric vehicles, data is collected to identify potential failure modes and evaluate their risks. The results obtained from the FMEA assessment are used to propose safety measures, considering the importance of the potential failure modes as indicated by their risk priority number (RPN). The design incorporates safeguards against mechanical stress, external short circuits, and thermal runaway incidents. The findings of this study enhance our understanding of electric vehicle (EV) battery safety and offer valuable insights to EV manufacturers, regulators, and policymakers, aiding them in the development of safer and more reliable electric vehicles.
Dissertations / Theses on the topic "Electric engineering Safety measures"
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Du, Toit Willem Johannes. "The relationship between health and safety and human risk taking behaviour in the South African electrical construction industry." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1009529.
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Mankind, and the development of people, exists due to risk-taking behaviour. It is not that humans should not take risks, but rather the ability to identify the magnitude of risk exposure in order that mankind‟s actions would be so selected as to mitigate exposed risk factors, that no harm should befall them. The approach to health and safety (H&S) has always been to manage H&S environmental factors that could have a negative impact on people, capital, and organisational systems. However, the critical component of human risk-taking behaviour that would have a far greater impact has rarely been acknowledged as part of the drivers that increase risk exposure. Human behaviour is a major contributing factor in accident causation. Although human error cannot be completely eliminated, it should be identified and correctly managed according to each individual‟s risk-taking profile. The reason people decide to take certain risks under certain conditions and the effect it has on H&S management systems is a key component to managing organisational risk exposure. To quantify the value of individual risk-taking behaviour could provide management with better opportunities of lowering the organisational risk exposure. Human risk-taking behaviour is influenced by each individual‟s perception of risk. Such perception of risk will influence decisions on risk-taking behaviour, which in turn is influenced by the individual‟s psychological profile and environmental factors, including character and the impact of a cultural environment. The electrical construction and maintenance industry differs from other similar industries in that the physical entity of electricity requires not only sensory perception for the identification and evaluation of risk factors, but also requires specialised knowledge and testing equipment to evaluate the parameters of electrical installation, plant or equipment. Without such competence, direct exposure to most electrical installations could be fatal. The optimum human resource (HR) solution for managing the risk potential of high risk-taking behaviour is the rating and allocation of specific job tasks that can match and limit the individual potential for risk-taking behaviour and the impact on organisational incident statistics. Maintaining and optimising employee job performance enables organisations to better achieve pre-set goals and missions. Such improvements being a catalyst for better job performance by setting limitations on high risk-taking behaviour, that will improve H&S performance by lowering incident rates.
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Von, Hoesslin Neil. "The safety and comfort of a patient during robot-based positioning for accurate radiotherapy." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16467.
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Sharifnia, Hamidreza. "Safety related model and studies of Trojan Nuclear Power Plant electrical distribution system." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3875.
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The most important requirement for running a nuclear power plant safely is having a reliable safety system, especially during the emergency shutdown condition. For performing a scrutiny load flow and voltage drop study a detailed and comprehensive electrical model for the emergency electrical distribution system of the Trojan Nuclear Power Plant has been developed. This model includes the representation of the transformers, circuit breakers, motors, cables and load data from 4160 volts level down to the individual 480 volts loads.
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Kaido, Rodrigo Tsuneyoshi. "Codificação de rede como alternativa para aumentar a segurança na camada física em smart grids." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/817.
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Smart grids representam o futuro das redes elétricas. Estes tipos de redes devem ser robustas a flutuações de carga e devem possuir monitoramento e gerenciamento inteligente e em tempo real. Para que essas demandas sejam possíveis, é preciso uma comunicação de dados de alta velocidade, flexível e de baixo custo. Dentro dessas características, muitos autores propõem a utilização de sistemas de comunicação sem fio, os quais possuem um custo de implantação mais baixo que redes ópticas ou cabeadas, além de possuir flexibilidade para rápidas mudanças de topologia, e não apresentarem barreiras em relação aos padrões e equipamentos, o oposto por exemplo ao caso do sistema PLC (Power Line Communications). Devido à natureza difusora do canal sem fio, segurança nesse tipo de rede é um dos pontos mais críticos, já que um ataque de qualquer natureza pode provocar perturbações e blackouts na rede elétrica, ou gerar problemas de privacidade, na situação em que atacantes passivos (eavesdroppers) interceptam mensagens da rede com o intuito de obter algum tipo de benefício. Esta segunda situação, de ataques passivos, será abordada neste trabalho. Além das tradicionais técnicas de criptografia geralmente utilizadas para aumentar a segurança de redes de comunicação, outra área que vem recentemente despertando interesse da comunidade científica é a área de segurança na camada física, a qual é baseada em conceitos da teoria da informação de Shannon. Neste trabalho, utiliza-se as técnicas de codificação de rede para aumentar a segurança na camada física da parte de múltiplo acesso de uma rede de comunicação sem fio, em que dois transmissores possuem informações independentes para um destino em comum, na presença de um eavesdropper. Utilizando-se a probabilidade de outage com restrições de sigilo como métrica, mostra-se através de resultados analíticos e numéricos que o sigilo pode ser aumentado através da codificação de rede, quando comparada com a transmissão direta e com as técnicas de cooperação tradicionais.Smart grids represent future of electrical power systems . These kind of networks must be robust to load fluctuations as well as have smart monitoring and intelligent management in real-time fashion . Based on the aforementioned needs, many authors propose the use of wireless communication systems in order to meet these demands, due to their efficient tradeoff between low-cost and high-seed when compared to wired connections such as optical fibens or metallic cables, and, in addition, they are flexible to topology changes and do not have constrainsts in terms of standards and devices, the opposite for example to the case of PLC(Power Line Comminications) .Due to the broadcast nature of the wireless medium , security is onde of the critical issues in smart grids since the occurrence of attacks can lead to load fluctuations and blackouts in the electrical system, or generate secrecy problems, in the situation where passive eaversdroppers intercept messages in the network aiming to obtain some kind of benefit . This second case of passive attacks will be addressed in the work. In addition to classical cryptography strategies commonly used to increase the security in communications systems another area which has been studied by the scientific community is the physical-layer security, which is based on the Shannon’s information theory. In this work, we use the network coding technique as tool to increase the physical-layer in a mulple access wireless network, where two users have independent information to transmit to a common destination, in the presence of an eavesdropper. By using the secrecy outage probability as the metric, we show through theoretic and numerical results that the network security can be increased through the use of network coding when compared to the transmission and traditional cooperative techniques.
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Hashimoto, Yumi Rocha. "Avaliação da concentração de radônio em casas pré-fabricadas e determinação da camada emissora de radônio em argamassa de cimento." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2856.
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Pesquisas relacionadas ao radônio são necessárias devido ao potencial carcinogênico dessde gás, e os limites de referência são objeto de recomendações. Neste estudo, foram medidas concentrações de radônio no interior e no exterior de duas casas pré-fabricadas, contruídas em um ambiente experimental, na UTFPR/Ecoville. Uma das casas foi construída com materiais da República Tcheca (1) e a outra (2) com materiais do Brasil. Para tal, detectores CR-39 foram usados. A concentração média para a casa (1) foi de 10,1±1,3 Bq/m³, para a casa (2) foi de 7,8±1,1 Bq/m³ e para o exterior foi de 11,5±2,9 Bq/m³. Os valores ficaram abaixo de 300 Bq/m³, então, nenhuma medida mitigadora se fez necessária. Além disso, foram feitas medidas do número de traços de partículas alfa advindas de corpos de prova de pasta de cimento comum e com adição de areia com alta atividade de radônio, com o intuito de identificar o valor da camada emissora. Para os corpos de prova de pasta de cimento comum, de espessuras de 1,5, 2,6, 3,8 e 4,6 cm, o número de traços foi de 762±25, 799±51, 814±31, 791±45 e 798±27, respectivamente. A análise mostrou que não há diferença estatística entre os dados, o que indica que a espessura de 1,5 cm já se configura como um limite para a exalação de radônio. Já para os corpos de prova de areia ativa, de espessuras 1,4, 2,3, 2,9, 3,5 e 4,2 cm, o número de traços doi de 380±18, 322±15, 298±5, 548±25 e 446±83, respectivamente. Em uma análise geral, concluiu-se que não há aumento expressivo da exalação com o aumento da espessura, de maneira que a espessura de 1,4 cm já se configura como um limite para a exalação de radônio. Com o objetivo de se determinar a concentração de radônio exalada pelos corpos de prova feitos de pasta de cimento comum e de areia ativa, foram analisados corpos de prova em frascos nos quais o equilíbrio secular já havia ocorrido. Os resultados mostraram que, para os corpos de prova de pasta de cimento comum, os valores não configuram um crescimento expressivo. Já para os corpos de prova com alta atividade de radônio, verificou-se um aumento na exalação com aumento da espessura. Para determinar qual a contribuição das concentrações indoor, foi realizada a medição do fluxo de exalação de radônio. Os resultados extrapolados para um cômodo padrão variaram de 15 a 60 Bq/m³. Essa contribuição pode ser considerada expressiva, mas não preocupante, de forma que os resultados foram considerados próximos da normalidade.Radon-related research is required because of the carcinogenic potential of this gas, and the reference limits are subject of recommendations. For this research, radon concentrations were measured inside and outside of two prefabricated houses, built in an experimental environment, in UTFPR/Ecoville. One of these houses was built with building materials from the Czech Republic (1) and the other (2) with materials from Brazil. Whith this proposal, 40 CR-39 detectors were used. The average concentration for house (1) was 10,1±1,3 Bq/m³, for house (2) was 7,8±1,1 Bq/m³ and for the exterior was 11,5±2,9 Bq/m³. The values obtained were below 300 Bq/m³, thus, no mitigating measures were necessary. Besides, measurements were made of the number of thacks of alpha particles coming from common cement paste samples and from sand with high radon activity samples in order to identify the value of the emitting layer. For common cement paste samples of 1.5, 2.6, 3.8 and 4.6 cm of thickness, the number os tracks was 762±25, 799±51, 814±31, 791±45 e 798±27, respectively. The analysis showed that there ir no statistical difference between the data, which indicates that the thickness of 1.5 cm is already configured as a limit for a randon exhalation. For the active sand samples of 1.4, 2.3, 2.9, 3.5 and 4.2 cm, the number of tracks was 380±18, 322±15, 298±5, 548±25 e 446±83, respectively. In a general analysis, it was concluded that there is no expressive increase of the exhalation with the increase of the thickness, só that the thickness of 1.4 cm is already configured as a limit for the exhalation of radon. In order to determine the concentration of radon exhaled by the samples made of common cement past and active sand, were analyzed samples in flasks where the secular equilibrium had already occured. The results showed that, for common cement past samples, the values do not represent and expressive growth. However, for the test samples with high radon activity and increase in the concentration with increasing the thickness was observed. To determine the contribution of the concentrations in an indoor environment, radon exhalation flux measurement was performed. These results were extrapolated to the standard room and varies from 15 to 60 Bq/m³. This contribution can be considered expressive, but not of concern, só the results were considered close to normality.
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Porto, Lorena Elaine. "Avaliação da dose em pacientes pediátricos submetidos a exame de tomografia computadorizada." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1070.
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CAPESA dosimetria em tomografia computadorizada (TC) envolve desde a determinação de grandezas dosimétricas específicas de TC até a estimativa de dose absorvida e dose efetiva. Entretanto, deve-se considerar que por envolver radiação ionizante no seu processo, este procedimento apresenta riscos inerentes e sua utilização deve ponderar o custo e o benefício propiciado pelo procedimento. A proteção de pacientes submetidos a exames radiológicos, de uma maneira geral, é determinada pelos princípios da “justificação” e “otimização”. Desta forma, torna-se importante o conhecimento dos níveis de radiação nas exposições durante um procedimento tomográfico. Estes níveis foram observados através da estimativa das grandezas específicas para tomografia computadorizada, tais como o Índice de kerma no ar (C100,ar), o Índice de kerma ponderada (Cw) e o produto kerma comprimento (PKL,CT), e em estimados os níveis de dose efetiva e risco para o estudo tomográfico computadorizado de crânio, tórax e abdômen realizado com múltipla varredura. Os valores obtidos foram comparados com os obtidos por simulação computacional por Monte Carlo. Eles foram utilizados, neste estudo, no cálculo da Dose Efetiva e risco e para comparação com o nível de referência de dose estabelecido pela Comunidade Européia. Utilizando-se o programa de simulação computacional Dosecal X_CT e o protocolo ICRP 103, foram determinadas as grandezas de radioproteção relevantes para o estudo que são os valores de dose efetiva referente ao procedimento. O nível do Produto kerma comprimento (PKL,CT), utilizando-se o C100,ar previamente estabelecido, foi também obtido e comparado com o nível de referência de dose estabelecido pela comunidade europeia. Os valores encontrados até agora estão dentro dos limites dos Níveis de Referência.
The computed tomography (CT) dosimetry involves measurements of specific quantities of CT, which are part of CT quality control procedures, as well as calculation of absorbed and effective doses to a patient submitted to CT examinations. Since CT uses ionizing radiation, it should be considered that a precise balance between risks and benefits must be achieved in order to justify the adoption of such technique. Radiation protection of patients undergoing radiological exams is established based on the justification and optimization principles. Nowadays, it is important to know the dose radiation levels to which a patient is exposed during a tomographic procedure. Those are given by the estimation of specific dosimetric quantities called the computed tomography kerma index in air, C100,air, the weighted computed tomography kerma index Cw, kerma length product, PKL,CT and then the levels of effective dose and risk to the computerized CT scan study of skull, thorax and abdomen with a multiple scanning. The values obtained were compared with those obtained by computer simulation using Monte Carlo method. The protection quantities organ absorbed dose, effective dose and risk for comparison with the reference dose level established by the European Community. Using computational simulation program of the Dosecal X_CT and the ICRP 103 Protocol, were certain quantities of radiation protection relevant to study which are the values of effective dose for the procedure. The dose length product PKL,CT level was calculated from the C100,air and compared to the reference dose level established by the European Community. The values found so far are within the limits of the reference levels.
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Downey, Matthew Blake. "Evaluating the Effects of a Congestion and Weather Responsive Advisory Variable Speed Limit System in Portland, Oregon." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2397.
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Safety and congestion are ever present and increasingly severe transportation problems in urban areas throughout the nation and world. These phenomena can have wide-ranging consequences relating to safety, the economy, and the environment. Adverse weather conditions represent another significant challenge to safety and mobility on highways. Oregon is not immune from either of these global issues. Oregon Route (OR) 217, to the southwest of the downtown Portland, is one of the worst freeways for congestion in the state and is also subject to the Pacific Northwest's frequently inclement and unpredictable climate. High crash rates, severe recurrent bottlenecks and highly unreliable travel times continuously plague the corridor, making it a major headache for the thousands of commuters using it every day.
In an effort to more effectively combat both congestion and adverse weather, transportation officials all over the world have been turning to increasingly technological strategies like Active Traffic Management (ATM). This can come in many forms, but among the most common are variable speed limit (VSL) systems which use real-time data to compute and display appropriate reduced speeds during congestion and/or adverse weather. After numerous studies and deliberations, Oregon Department of Transportation (ODOT) selected Oregon Route (OR) 217 as one of the first locations in the state to be implemented with an advisory VSL system, and that system began operation in the summer of 2014. This thesis seeks to evaluate the effectiveness of this VSL system through the first eight months of its operation through an in-depth and wide-ranging "before and after" analysis.
Analysis of traffic flow and safety data for OR 217 from before the VSL system was implemented made clear some of the most prevalent issues which convinced ODOT to pursue VSL. Using those issues as a basis, a framework of seven specific evaluation questions relating to both performance and safety, as well as both congestion and adverse weather, was established to guide the "before and after" comparisons. Hypotheses, and measures of effectiveness for each question were developed, and data were obtained from a diverse array of sources including freeway detectors, ODOT's incident database, and the National Oceanic and Atmospheric Administration (NOAA).
The results of the various "before and after" comparisons performed as a part of this thesis indicate that conditions have changed on OR 217 in a number of ways since the VSL system was activated. Many, but not all, of the findings were consistent with the initial hypotheses and with the findings from other VSL studies in the literature. Certain locations along the corridor have seen significant declines in speed variability, supporting the common notion that VSL systems have a harmonizing effect on traffic flow. Crash rates have not decreased, but crashes have become less frequent in the immediate vicinity of VSL signs. Flow distribution between adjacent lanes has been more even since VSL implementation during midday hours and the evening peak, and travel time reliability has seen widespread improvement in three of the corridor's four primary travel lanes during those same times. The drops in flow that generally occur upstream of bottlenecks once they form have had diminished magnitudes, while the drops in flow downstream of the same bottlenecks have grown. Finally, the increase in travel times that is usually brought about by adverse weather has been smaller since VSL implementation, while the decline in travel time reliability has largely disappeared.
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Agarwal, Nithin K. "ESTIMATION OF PEDESTRIAN SAFETY AT INTERSECTIONS USING SIMULATION AND SURROGATE SAFETY MEASURES." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_diss/835.
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With the number of vehicles increasing in the system every day, many statewide policies across the United States aim to increase the use of non- motorized transportation modes. This could have safety implications because the interaction between motorists and non-motorists could increase and potentially increasing pedestrian-vehicle crashes. Few models that predict the number of pedestrian crashes are not sensitive to site-specific conditions or intersection designs that may influence pedestrian crashes. Moreover, traditional statistical modeling techniques rely extensively on the sparsely available pedestrian crash database.
This study focused on overcoming these limitations by developing models that quantify potential interactions between pedestrians and vehicles at various intersection designs using as surrogate safety measure the time to conflict. Several variables that capture volumes, intersection geometry, and operational performance were evaluated for developing pedestrian-vehicle conflict models for different intersection designs. Linear regression models were found to be best fit and potential conflict models were developed for signalized, unsignalized and roundabout intersections. Volume transformations were applied to signalized and unsignalized conditions to develop statistical models for unconventional intersections.
The pedestrian-vehicle conflicting volumes, the number of lanes that pedestrians are exposed to vehicles, the percentage of turning vehicles, and the intersection conflict location (major or minor approach) were found to be significant predictors for estimating pedestrian safety at signalized and unsignalized intersections. For roundabouts, the pedestrian-vehicle conflicting volumes, the number of lanes that pedestrians have to cross, and the intersection conflict location (major or minor approach) were found to be significant predictors. Signalized intersection models were used for bowtie and median U-turn intersections using appropriate volume transformations. The combination of signalized intersection models for the intersection area and two-way unsignalized intersection models for the ramp area of the jughandle intersections were utilized with appropriate volume transformations. These models can be used to compare alternative intersection designs and provide designers and planners with a surrogate measure of pedestrian safety level for each intersection design examined.
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Thurgood, Daniel J. "Analyzing the Effectiveness of Safety Measures Using Bayesian Methods." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2453.
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Recent research has shown that traditional safety evaluation methods have been inadequate in accurately determining the effectiveness of roadway safety measures. In recent years, advanced statistical methods have been utilized in traffic safety studies to more accurately determine the effectiveness of roadway safety measures. These methods, particularly hierarchical Bayesian statistical techniques, have the capabilities to account for the shortcomings of traditional methods. Hierarchical Bayesian modeling is a powerful tool for expressing rich statistical models that more fully reflect a given problem than a simpler model could. This paper uses a hierarchical Bayesian model to analyze the effectiveness of two types of road safety measures: raised medians and cable barriers. Several sites where these safety measures have been implemented in the last 10 years were evaluated using available crash data. This study analyzes the effectiveness of raised medians and cable barriers of roadway safety by determining the effect each has on crash frequency and severity at selected locations. The results of this study show that the installation of a raised median is an effective technique to reduce the overall crash frequency and severity on Utah roadways. The analysis of cable barriers showed that cable barriers were effective in decreasing cross-median crashes and crash severity.
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Fishelson, James. "Platooning Safety and Capacity in Automated Electric Transportation." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1949.
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Automated Electric Transportation (AET) proposes a system of automated platooning vehicles electrically powered by the roadway via wireless inductive power transfer. This has the potential to provide roadway transportation that is less congested, more flexible, cleaner, safer, and faster than the current system. The focus of this research is to show how platooning can be accomplished in a safe manner and what capacities such an automated platooning system can achieve. To accomplish this, first two collision models are developed to show the performance of automated platoons during an emergency braking scenario: a stochastic model coded in Matlab/Simulink and a deterministic model with closed-form solutions. The necessary parameters for safe platooning are then defined: brake variances, communication delays, and maximum acceptable collision speeds. The two collision models are compared using the Student's t-test to show their equivalence. It is shown that while the two do not yield identical results, in most cases the results of the deterministic model are more conservative than and reasonably close to the results of the deterministic model. The deterministic model is then used to develop a capacity model describing automated platooning flow as a function of speed and platoon size. For conditions where platooning is initially unsafe, three amelioration protocols are evaluated: brake derating, collaborative braking, and increasing the maximum acceptable collision speed. Automated platooning flow is evaluated for all of these scenarios, compared both with each other and with traditional roadway flow patterns. The results of these models show that when platooning is initially safe, very high vehicle flows are possible: for example, over 12,000 veh/hr for initial speeds of 30 m/s and 10 vehicle platoons. Varying system paramaters can have large ramifications for overall capacity. For example, autonomous (non-platooning) vehicles do not promise anywhere near this level, and in many cases struggle to approach the capacity of traditional roadways. Additionally, ensuring safety under an emergency braking standard requires very small communication delays and, most importantly, tight braking variances between the vehicles within a platoon. As proposed by AET, a single type of electric vehicle, combined with modern wireless communications, can make platooning safer than was previously possible without requiring amelioration. Both brake derating and collaborative braking can make platooning safer, but they reduce capacity and may not be practical for real-world implementation. Stricter versions of these, cumulative brake derating and exponential collaborative braking, are also evaluated. Both can degrade capacity to near current roadway levels, especially if a large degree of amelioration is required. Increasing maximum acceptable collision speed, such as through designing vehicles to better withstand rear-end collisions, shows more promise in enabling safe intraplatoon interactions, especially for scenarios with small communication delays (i.e. under 50 ms).
Books on the topic "Electric engineering Safety measures"
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Cooper, W. Fordham. Electrical safety engineering. 2nd ed. London: Butterworths, 1986.
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Cooper, W. Fordham. Electrical safety engineering. 2nd ed. London: Butterworths, 1986.
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M, Wilhelms David, Nussbaum Julie, Franke Deb, and J.J. Keller & Associates., eds. Workplace safety in action. Neenah, WI: J.J. Keller & Associates, Inc., 1996.
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K, Miles Karen, and National Institute for Occupational Safety and Health, eds. Electrical safety: Safety and health for electrical trades : student manual. [Washington, D.C.?]: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2002.
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A, Jones Ray. The electrical safety program guide. 2nd ed. Sudbury, MA: Jones & Bartlett Learning, 2011.
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Fowler, Thaddeus W. Electrical safety: Safety and health for electrical trades : student manual. [Washington, D.C.?]: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2002.
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Inc, Independent Electrical Contractors, ed. Independent Electrical Contractors safety manual. [Alexandria, Va.]: Independent Electrical Contractors, Inc., 1990.
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J.J. Keller & Associates., ed. J.J. Keller's electrical safety handbook: A guide & toolkit for safety managers and supervisors. Neenah, WI: J.J. Keller & Associates, Inc., 2007.
Find full textBook chapters on the topic "Electric engineering Safety measures"
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Zhang, Huishan. "Reliability Evaluation Model of Safety Measures for Protection Device Maintenance Opreating Based on Goal Orientation." In Lecture Notes in Electrical Engineering, 485–98. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1351-6_53.
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Gu, Peng-Fei, Zhe-Ming Liu, Hui-Hui Liang, Wei-Hua Chen, and Feng Gao. "Evaluation Measures About Software V&V of the Safety Digital I&C System in Nuclear Power Plant." In Lecture Notes in Electrical Engineering, 233–39. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7416-5_28.
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Wen, Feina, and Yu-Chi Lee. "Driving Safety Assessment on Standard Deviation of Lateral Position and Time Exposed Time-to-Collision Measures Under Driving in Left-Hand and Right-Hand Traffic Conventions." In Lecture Notes in Electrical Engineering, 681–87. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5963-8_92.
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Proske, Dirk. "Measures of Safety." In Risk Engineering, 27–65. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73833-8_5.
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Martín-Belloso, Olga, Angel Sobrino-López, and Pedro Elez-Martínez. "Pulsed Electric Field Processing." In Handbook of Food Safety Engineering, 603–26. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444355321.ch24.
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Li, Rita Yi Man, and Sun Wah Poon. "Case Studies on Safety Measures Implementation." In Risk Engineering, 65–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35046-7_6.
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Balambica, V., T. R. Vijayaram, M. Achudhan, Vishwa Deepak, and Manikandan Ganesan. "Design and Implementation of Automatic Goggle Detector for Safety Measure." In Lecture Notes in Electrical Engineering, 766–73. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1677-9_67.
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Li, Rita Yi Man, and Sun Wah Poon. "Effectiveness of Safety Measures in Reducing Construction Accident Rates." In Risk Engineering, 41–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35046-7_4.
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Chung, Jong Duk, Jeong Guk Kim, and Dae Sung Bae. "Safety Diagnosis of Collided Subway Electric Multiple Units (EMUs)." In Key Engineering Materials, 1876–81. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-978-4.1876.
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Klinger, Florian, Manuel Klinger, Johannes Edelmann, and Manfred Plöchl. "Electric Scooter Dynamics – From a Vehicle Safety Perspective." In Lecture Notes in Mechanical Engineering, 1102–12. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07305-2_102.
Full textConference papers on the topic "Electric engineering Safety measures"
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Liqun Zhang, Ruijun Li, Hailong Wang, and Yaqing Shi. "Problems on safety management of bridges in China and its improving measures." In 2011 International Conference on Electric Technology and Civil Engineering (ICETCE). IEEE, 2011. http://dx.doi.org/10.1109/icetce.2011.5774328.
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Andrzejewski, Andrzej, and Marko Rosić. "Protection against electric shock in electrical engineering didactic laboratories." In 9th International Scientific Conference Technics and Informatics in Education. University of Kragujevac, Faculty of Technical Sciences Čačak, 2022. http://dx.doi.org/10.46793/tie22.109a.
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In order to rise safety level of the users in real laboratory environment related to the courses of electrical engineering the description and application examples of cover for laboratory screw terminals for use in research laboratories and experimental electrical systems and equipment is depicted in this paper. The main advantage of the described covers is the protection of laboratory personnel and students against direct contact to metal parts of terminal, which are under high voltage potentials. The paper points out the necessity for protection measures and contains examples of use of different covers for electrical machines, power converters, electric meters and other laboratory equipment.
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Chiun-Fan Chen, Jin-Shin Lai, Shih-Wei Chen, Yin-Tsong Lin, and Te-Son Kuo. "Safety measures implemented for modular functioning electrical stimulators." In 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2009. http://dx.doi.org/10.1109/iembs.2009.5335264.
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Qing, Jiang, and Li Chun. "The Measures Study of Electric Bicycle's Hidden Safety Danger in Traffic in Moderate City." In 2012 International Conference on Industrial Control and Electronics Engineering (ICICEE). IEEE, 2012. http://dx.doi.org/10.1109/icicee.2012.523.
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Han, Jingshan, Danyu Li, Yayang Lin, Xiaoxiang Zhang, Jianhua Yu, and Bin Liu. "Safety Analysis and Reinforcement Measures of Transmission Tower." In 2022 9th International Forum on Electrical Engineering and Automation (IFEEA). IEEE, 2022. http://dx.doi.org/10.1109/ifeea57288.2022.10038142.
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Nicholson, Barry, Carlos Yicon, Fernando Carreno, Robert Navo, Christian Bodington, and Gibson Gutierrez. "ESP Continuous Deployment Monitoring System." In SPE Gulf Coast Section - Electric Submersible Pumps Symposium. SPE, 2023. http://dx.doi.org/10.2118/214726-ms.
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Abstract Electric submersible pumps (ESPs) using permanent magnet motors (PMMs) play a key role in lowering the cost of operations and reducing carbon footprint by reducing power consumption by 15 to 20%. As the use of PMMs becomes more prevalent, concerns about PMM safety are rising, especially during the installation and pull of the ESP system; hence, an automated method to monitor PMMs to safeguard personnel is essential. The ESP continuous deployment monitoring system (CDMS) prevents field personnel's exposure to electrical shock by acquiring and logging valuable downhole and surface measurements while installing or retrieving ESP systems. This tool both maintains the ESP system's electrical integrity and implements the two most important components of HSE: risk elimination and engineering control. Additionally, the device can alert the presence of any back electromotive force (BEMF) that may be generated. This system provides the ability to log the resistances between phases, between phase to ground, and downhole sensor readings without any physical contact with the ESP cable. In addition, this tool maintains the three phases of the ESP cable in short condition, reducing the chance of unplanned motor spinning. It also measures the ESP installation or retrieval operational efficiency. It eliminates the need to stop the operation regularly to measure the integrity of the ESP system. The CDMS is not intended to replace other safety considerations or procedures, but rather to complement them. This paper will illustrate the potential electrical hazards and the measures taken to ensure a safe ESP installation and retrieval during field tests and trials.
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Duchac, Alexander, and Magnus Knutsson. "IAEA Guidance on Enhancing the Safety of Electrical Power Systems." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-61077.
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An open phase condition is a known phenomenon in the power industry and is now recognized to have adverse impact on the electrical power systems in several nuclear power plants. An open phase condition may result in challenging plant safety. Operating experience in different countries has shown that the currently installed instrumentation and protective schemes have not been adequate to detect this condition and take appropriate action. An open phase condition, if not detected and disconnected in a timely manner, represents design vulnerability for many nuclear power plants. It may lead to a condition where neither the offsite power system nor the onsite power system is able to support the safety functions, and could propagate to station blackout. The design of electrical power systems needs to be evaluated systematically and improved, where necessary, to minimize the probability of losing electric power from any of the remaining supplies as a result of single or double open phase conditions. The improved design should be coordinated with existing measures to ensure that the electrical power system is able to support the safety functions after the open phase condition is detected and disconnected. In this regard, the IAEA has developed a safety publication dealing with design vulnerability of open phase conditions. This paper summarizes the contents of the report, the rationale and criteria to enhance the safety of nuclear power plants by providing technical guidance to address an open phase condition vulnerability in electrical systems used to start up, operate, maintain and shutdown the nuclear power plant.
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Zhang, Haiyang, Yongkang Zheng, Qiwei Du, Feipeng Lv, Bo Ren, and Chao Zheng. "Summary of Research on Error Prevention Technology of Secondary Safety Measures in Smart Substations." In 2020 Asia Energy and Electrical Engineering Symposium (AEEES). IEEE, 2020. http://dx.doi.org/10.1109/aeees48850.2020.9121570.
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Saha, Swapnil Sayan, Shekh Md Mahmudul Islam, and Anindita Mashsharat. "Microcontroller based earthquake detection system for spontaneous cut-off of domestic utility lines for safety measures." In 2016 9th International Conference on Electrical and Computer Engineering (ICECE). IEEE, 2016. http://dx.doi.org/10.1109/icece.2016.7853875.
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Raigoza, Karla, Arthur Chadwick, and Chiranth Kishore. "Electric Vertical Take-Off and Landing (eVTOL) Vehicle Reliability and Safety Analysis." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-97038.
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Abstract With the expansion of cosmopolitan areas resulting in an increase of traffic and overcrowding came the creation of the urban air mobility (UAM) market. One technology that has been growing swiftly within the UAM market in the last decade is that of electric vertical take-off and landing (eVTOL) vehicles. This paper tackled the reliability and safety analysis of eVTOLs by using Six Sigma tools and the DMAIC (Design, Measure, Analyze, Improve and Control) process to establish design recommendations that can improve and facilitate the integration of eVTOLs to the public. Based on the gathered results, it is recommended that an eVTOL have a robust sensor system, frequent and rigorous maintenance schedules, and redundant airbags and air filters. If wing structures are utilized in the framework, it can be recommended that the eVTOL have them mounted on the lower half of the fuselage. To operate an eVTOL, it is recommended that the training process be meticulous, as human error was a leading cause in failure modes and autonomous flight will take time to fully mature. Furthermore, it is recommended that more battery testing for eVTOLs be conducted in order to achieve the high capacity needed for takeoff and landing. Overall, this paper expounded upon the potential for further testing and research with regards to the current and future development of eVTOLs such that safety drives design rather than responding to tragedies.
Reports on the topic "Electric engineering Safety measures"
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Nimesh, Vikas, Bhaskar Natarjan, Saddam Hussain, and K. N. Hemanth Kumar. CATALYSING THE MARKET TRANSFORMATION OF ELECTRIC 2-WHEELER INSIGHTS FROM CONSUMERS AND STAKEHOLDERS. Alliance for an Energy Efficient Economy (AEEE), 2023. http://dx.doi.org/10.62576/aeee2w.
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Electric two-wheelers (E2Ws) are becoming increasingly popular as an eco-friendly mode of transport. They provide a convenient and efficient option for short-distance travel, particularly in urban areas. However, the widespread adoption of E2Ws in India still faces several challenges. In order to address these issues, the Alliance for an Energy Efficient Economy (AEEE) and International Copper Association India (ICA India) have teamed up to identify the key barriers hindering the adoption of electric two-wheelers in the market. The joint research project aims to identify effective pathways for a market transformation for E2Ws in India and promote the widespread adoption of E2Ws as a sustainable and efficient mode of transport. The goal of the study is to facilitate the increased adoption of E2Ws in India by examining the perspectives of various stakeholders, including consumers, fleet operators, financial institutions, dealerships, and service centers. The study was conducted in three zones - North Zone (Delhi, Lucknow), West Zone (Mumbai, Jaipur, Ahmedabad, Rajkot), and South Zone (Bangalore, Coimbatore, Hyderabad, Chennai). The study collected 1159 responses from both E2W users and internal combustion engine (ICE) users across India, as well as E2W dealers, in order to gain a more comprehensive understanding of the E2W market across the country. The survey results revealed key insights about the prevalence of E2W users, their awareness of ICE options, and their willingness to adopt more eco-friendly modes of transport. The report covers key aspects of E2Ws, including purchase, charging, performance, aftersales, safety, retrofitting, etc. Chapter 1 introduces the E2W ecosystem and sets the background and need for the study. Chapter 2 details the scope and methodology adopted for the research. Various barriers and motivating factors and their role in attracting or deterring consumers from or towards EV adoption, like charging practices, usage behaviour, ownership cost, purchase experience, etc., were delved into. The chapter also details the respondents’ profiles and the surveying techniques incorporated for the study, i.e., face-toface interviews with E2W users and In-person qualitative discussions with the E2W dealers. It was found that the younger generations had an equal propensity towards both ICE and E2Ws. Also, the average income of EV owners was found to be higher than the average income of ICE two-wheelers. Chapter 3 discusses the findings and key insights from the consumer survey. It examines the key perceptions of customers regarding E2W and ICE vehicles and their purchase and usage practices. The chapter discusses important current and future triggers and barriers to EV adoption. Access to charging stations, Safety concerns, high upfront costs, long charging times, etc., were found to be the major deterrents towards EV adoption. Chapter 4 presents the key insights from the dealer consultation and discusses the various obstacles, including warranty and battery replacement costs, low margins, the lack of supplier credit facilities, battery backup, the high price of E2Ws, and low speed. These obstacles impede their ability to sell electric vehicles and compete with other types of vehicle dealers. Nonetheless, as the EV market grows and develops, manufacturers and dealers will be able to overcome these obstacles and establish a more sustainable and competitive EV industry. Chapter 4 presents the key insights from the dealer consultation and discusses the various obstacles dealers face, including warranty and battery replacement costs, low margins, the lack of supplier credit facilities, battery backup, the high price of E2Ws, and low speed. These obstacles impede their ability to sell electric vehicles and compete with other types of vehicle dealers. Nonetheless, as the EV market grows and develops, manufacturers and dealers will be able to overcome these obstacles and establish a more sustainable and competitive EV industry. Chapter 5 provides recommendations to address the different barriers to E2W adoption in India, like high upfront costs of E2W, charging stations, safety issues, battery issues, etc. The whitepaper provides recommendations to address the challenges and barriers hindering the adoption of E2Ws in India. These recommendations cover various topics such as consumer perceptions, demand incentives, and product-related issues like servicing, safety, and performance. To encourage ix the wider adoption of E2Ws, the whitepaper proposes several measures, including improving the availability of charging infrastructure, regular maintenance of charging points, and investment support to charging and swapping players. Additionally, partnering with financial institutions to offer affordable loans is recommended to make E2Ws more accessible to consumers. These measures are critical to overcoming the challenges faced by E2W users and promoting the adoption of ecofriendly transport options in India. To achieve the target of increasing energy efficiency and reducing carbon emissions by 33-35% by 2030, as set by the Indian government, it is crucial for the various stakeholders in the electric vehicle ecosystem to implement the strategies outlined in the whitepaper. The aim is to accelerate the adoption of E2Ws and support the government in achieving its goals.
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Bray, Jonathan, Ross Boulanger, Misko Cubrinovski, Kohji Tokimatsu, Steven Kramer, Thomas O'Rourke, Ellen Rathje, Russell Green, Peter Robertson, and Christine Beyzaei. U.S.—New Zealand— Japan International Workshop, Liquefaction-Induced Ground Movement Effects, University of California, Berkeley, California, 2-4 November 2016. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, March 2017. http://dx.doi.org/10.55461/gzzx9906.
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There is much to learn from the recent New Zealand and Japan earthquakes. These earthquakes produced differing levels of liquefaction-induced ground movements that damaged buildings, bridges, and buried utilities. Along with the often spectacular observations of infrastructure damage, there were many cases where well-built facilities located in areas of liquefaction-induced ground failure were not damaged. Researchers are working on characterizing and learning from these observations of both poor and good performance. The “Liquefaction-Induced Ground Movements Effects” workshop provided an opportunity to take advantage of recent research investments following these earthquake events to develop a path forward for an integrated understanding of how infrastructure performs with various levels of liquefaction. Fifty-five researchers in the field, two-thirds from the U.S. and one-third from New Zealand and Japan, convened in Berkeley, California, in November 2016. The objective of the workshop was to identify research thrusts offering the greatest potential for advancing our capabilities for understanding, evaluating, and mitigating the effects of liquefaction-induced ground movements on structures and lifelines. The workshop also advanced the development of younger researchers by identifying promising research opportunities and approaches, and promoting future collaborations among participants. During the workshop, participants identified five cross-cutting research priorities that need to be addressed to advance our scientific understanding of and engineering procedures for soil liquefaction effects during earthquakes. Accordingly, this report was organized to address five research themes: (1) case history data; (2) integrated site characterization; (3) numerical analysis; (4) challenging soils; and (5) effects and mitigation of liquefaction in the built environment and communities. These research themes provide an integrated approach toward transformative advances in addressing liquefaction hazards worldwide. The archival documentation of liquefaction case history datasets in electronic data repositories for use by the broader research community is critical to accelerating advances in liquefaction research. Many of the available liquefaction case history datasets are not fully documented, published, or shared. Developing and sharing well-documented liquefaction datasets reflect significant research efforts. Therefore, datasets should be published with a permanent DOI, with appropriate citation language for proper acknowledgment in publications that use the data. Integrated site characterization procedures that incorporate qualitative geologic information about the soil deposits at a site and the quantitative information from in situ and laboratory engineering tests of these soils are essential for quantifying and minimizing the uncertainties associated site characterization. Such information is vitally important to help identify potential failure modes and guide in situ testing. At the site scale, one potential way to do this is to use proxies for depositional environments. At the fabric and microstructure scale, the use of multiple in situ tests that induce different levels of strain should be used to characterize soil properties. The development of new in situ testing tools and methods that are more sensitive to soil fabric and microstructure should be continued. The development of robust, validated analytical procedures for evaluating the effects of liquefaction on civil infrastructure persists as a critical research topic. Robust validated analytical procedures would translate into more reliable evaluations of critical civil infrastructure iv performance, support the development of mechanics-based, practice-oriented engineering models, help eliminate suspected biases in our current engineering practices, and facilitate greater integration with structural, hydraulic, and wind engineering analysis capabilities for addressing multi-hazard problems. Effective collaboration across countries and disciplines is essential for developing analytical procedures that are robust across the full spectrum of geologic, infrastructure, and natural hazard loading conditions encountered in practice There are soils that are challenging to characterize, to model, and to evaluate, because their responses differ significantly from those of clean sands: they cannot be sampled and tested effectively using existing procedures, their properties cannot be estimated confidently using existing in situ testing methods, or constitutive models to describe their responses have not yet been developed or validated. Challenging soils include but are not limited to: interbedded soil deposits, intermediate (silty) soils, mine tailings, gravelly soils, crushable soils, aged soils, and cemented soils. New field and laboratory test procedures are required to characterize the responses of these materials to earthquake loadings, physical experiments are required to explore mechanisms, and new soil constitutive models tailored to describe the behavior of such soils are required. Well-documented case histories involving challenging soils where both the poor and good performance of engineered systems are documented are also of high priority. Characterizing and mitigating the effects of liquefaction on the built environment requires understanding its components and interactions as a system, including residential housing, commercial and industrial buildings, public buildings and facilities, and spatially distributed infrastructure, such as electric power, gas and liquid fuel, telecommunication, transportation, water supply, wastewater conveyance/treatment, and flood protection systems. Research to improve the characterization and mitigation of liquefaction effects on the built environment is essential for achieving resiliency. For example, the complex mechanisms of ground deformation caused by liquefaction and building response need to be clarified and the potential bias and dispersion in practice-oriented procedures for quantifying building response to liquefaction need to be quantified. Component-focused and system-performance research on lifeline response to liquefaction is required. Research on component behavior can be advanced by numerical simulations in combination with centrifuge and large-scale soil–structure interaction testing. System response requires advanced network analysis that accounts for the propagation of uncertainty in assessing the effects of liquefaction on large, geographically distributed systems. Lastly, research on liquefaction mitigation strategies, including aspects of ground improvement, structural modification, system health monitoring, and rapid recovery planning, is needed to identify the most effective, cost-efficient, and sustainable measures to improve the response and resiliency of the built environment.