Academic literature on the topic 'Vedantes'
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Journal articles on the topic "Vedantes"
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Carvalho, Gustavo Tedesco de, and Tsuneharu Ogasawara. "Comparação de espessura de película e da resistência à compressão dos cimentos vedantes de ionômero de vidro convencional versus reforçado com resina." Matéria (Rio de Janeiro) 11, no. 3 (September 2006): 287–96. http://dx.doi.org/10.1590/s1517-70762006000300018.
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O objetivo deste trabalho foi avaliar, em cimentos utilizados exclusivamente para cimentação de trabalhos protéticos indiretos, as reais melhorias mecânicas dos ionômeros modificados com resina em relação aos ionômeros convencionais. Desenvolvimentos termodinâmicos foram realizados para melhor compreender os vidros componentes dos cimentos estudados, bem como melhor interpretar resultados experimentais. O trabalho experimental realizado com três cimentos ( Ketac Cem - ESPE, Fuji Plus - GC e Vitremer - 3M) caracterizados como cimentantes, isto é, utilizados na cimentação de trabalhos odontológicos indiretos, consistiu em: caracterização do pó original dos cimentos através de microscopia eletrônica de varredura; determinação da espessura de película de cimentação; análise por microscopia ótica de seções de corte de amostras de cimento curado; e ensaios de resistência à compressão em amostras de cimento curado. Foram obtidos os resultados de análises estatísticas dos dados coletados sobre espessura de película de cimento vedante e da resistência à compressão do mesmo. Concluiu-se que a espessura de película do cimento Vitremer é significativamente menor do que aquela do cimento Ketac Cem, que por sua vez é significativamente menor do que a do cimentoFuji Plus; a resistência à compressão do cimento Fuji plus é significativamente maior do que aquela do cimento Vitremer, que é por sua vez significativamente maior do que aquela do cimento Ketac Cem.
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Mitra, Indranil. "Transactional Analysis and Spirituality." International Journal of Transactional Analysis Research & Practice 11, no. 1 (June 30, 2020): 80–94. http://dx.doi.org/10.29044/v11i1p80.
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In the Indian philosophical system Vedanta, the composite human being is described in terms of five concentric sheaths surrounding an inner core - the Pancha Kosha (Five Sheaths) model. This model has implications for the discipline of Transactional Analysis insofar as it sheds light on the working of the Adult Ego State and also suggests the process by which autonomy can be achieved. Other concepts of Vedanta relevant to TA are discussed and elaborated, and a Vedantic Ego States Model presented incorporating them into the Classical TA model. The natural longing for intimacy and the growth force of physis are represented in terms of insights from Vedanta. The practice implications of the model are discussed, and also how it can help for personal growth and eventually spiritual progress.
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Sarvapriyananda, Swami. "Vivekananda’s interpretation of Vedanta philosophy and values for sustained human development." International Journal of Development Issues 13, no. 3 (August 26, 2014): 204–11. http://dx.doi.org/10.1108/ijdi-06-2014-0045.
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Purpose – The purpose of this paper is to outline the unique aspects of Vivekananda’s interpretation of Vedanta philosophy. Design/methodology/approach – The doctrine of the One and the many being the same reality is the philosophical core of the vast and varied treasury of Vivekananda’s teachings and, indeed, of his life. Findings – Vivekananda has given a remarkable interpretation of the Vedanta philosophy which is not only universal but also both inspiring and rational (and accommodative). Practical implications – Combining service with spirituality, grounding religion in rationality and being very contemporary in its sensitivities, Vivekananda’s thought is poised to become the ideology of the modern Indian nation. Originality/value – Vedanta philosophy is inclusive of ethics that are well-grounded in Vedantic metaphysics and constitutes a very effective response to the inequities and corruption widespread in contemporary societies.
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Vrajaprana, Pravrajika. "The Guru and His Queer Disciple." Postscripts: The Journal of Sacred Texts, Cultural Histories, and Contemporary Contexts 4, no. 3 (December 10, 2010): 243–58. http://dx.doi.org/10.1558/post.v4i3.243.
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Christopher Isherwood’s engagement with Vedanta falls outside the frame of conventional readings, confronting the assumption that religion and homosexuality are mutually exclusive. Isherwood was a committed follower of Vedanta’s nondualistic philosophy (advaita), which provided a nonjudgmental basis for his spiritual aspirations. This approach was crucial for Isherwood since his acceptance of a spiritual ideal and practice was critically dependent upon how his homosexuality was accepted. Pivotal in Isherwood’s life was his relationship with Swami Prabhavananda, whose influence was as profound as that of E.M. Forster. Isherwood produced a considerable output of religious writings in his career, yet he has been neglected as a religious writer. This paper interrogates colonialist condescension towards Isherwood as a “Hindu,” typically opposing Western “reason” against Hindu “superstition.” The paper concludes by suggesting that Isherwood’s interpretation of Ramakrishna was not based upon a homosexualist hermeneutic, but rather one based on the freedom found in Guru Bhakti.
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Chowdhury, Dr Parmita. "AN ANALYSIS OF THE CONCEPT OF ULTIMATE REALITY FROM THE PERSPECTIVE OF VIVEKANANDA." INFORMATION TECHNOLOGY IN INDUSTRY 9, no. 1 (February 28, 2021): 118–20. http://dx.doi.org/10.17762/itii.v9i1.108.
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Vivekananda is one of the Neo-Vedantin or contemporary Indian Philosophers who has got influenced by the Vedānta philosophy and used its philosophy in practical life for human welfare. Vivekananda considers the metaphysical question regarding the status of the Ultimate Reality as an important matter of discussion without which human life would be purposeless. Such metaphysical knowledge comes to man when he goes beyond the circle of reason or physical plane. Vivekananda’s Neo-Vedanta is a discussion of such metaphysical views. The concept of Ultimate Reality is here understood in the sense of both nirguṇa and saguṇa Brahman i.e., God without name and form and with name and form. However, in the present paper, the aim is to focus on the concept of Ultimate Reality both from the transcendental and empirical standpoint and to check whether the status of the nirguṇa Brahman and saguṇa Brahman are identical or different.
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Mallik, Sangram Keshari, and Dr Braja Kishore Sahoo. "Vedic Philosophy and Swami Nigamananda." SMART MOVES JOURNAL IJELLH 7, no. 12 (December 30, 2019): 18. http://dx.doi.org/10.24113/ijellh.v7i12.10214.
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Wonder that is India. India is wonderful because of its abundant and affluent cultural heritage. The cultural heritage of India is prudential of its spiritual richness and classical creativity. Vedic literature is the most wonderful and unparallel literary creation of Ancient India. Vedic literature has made this country worthy of worship. Vedas are without beginning and without end. Veda is author-less. It is Apauruseya. They are considered to be the direct word of the Divine. Vedic knowledge appeared in the dawn of the cosmos within the heart of Brahma. Brahma imparted this knowledge in the form of sound (Sabda) to his sons who are great sages. They transmitted the Vedic sound heard from Brahma to their disciples all over universe. There are four Vedas. They are the Rig Veda, Yajur Veda, Sama Veda and Atharva Veda. Four Vedas contain four types of texts such as The Samhitas, The Arankayas, The Brahmanas and The Upanishads. Veda is accepted as a code of conduct to Sanatan Dharma. The teaching of Veda is the concept that the individual is not an independent entity, but, rather, a part of the Universal Consciousness. Upanishads is the manifestation of Vedantic thought. Sada Darshan (Six Systems of Vedanta) is a very important part of Vedic philosophy. Swami Nigamananda a great Master of Vedic Literature achieved Nirbikalpa Sidhi of Vedanta in the year 1904. The philosophy of Vedanta is reflected in the creation of Swami Nigamananda. In his writings (Yogi Guru, Jnani Guru, Tantrik Guru, Premik Guru, Brahmacharya Sadhana and Vedanta Viveka) he has explained the main scriptures of Vedas such as The Upanishads, The Bramha Sutras and The Bhagavad Gita. His philosophy teaches us to love and live in a state of eternal freedom. The Philosophy of Swami Nigamananda is a synthesis of Sankar and Gouranga i.e. knowledge and love. Knowledge envisages the path of analysis and Love, the path of synthesis. In this way Nigamananda convincingly reconciled the two apparently contradictory creeds of Adi Shankaracharya and Gauranga Mohapravu. “He advised his disciples to combine Shankara’s view and Gournaga’s way and walk on this path of synthesis. In fact attainment of Jnana through Bhakti is the nucleus of his philosophy. Through his teachings and works, he proclaimed to the world the fundamental harmony of all religions that there are many paths which lead to the same goal”.
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Keshari Mallik, Sangram, and Dr Braja Kishore Sahoo. "Vedic Philosophy and Swami Nigamananda." SMART MOVES JOURNAL IJELLH 7, no. 12 (December 28, 2019): 17. http://dx.doi.org/10.24113/ijellh.v7i12.10232.
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Wonder that is India. India is wonderful because of its abundant and affluent cultural heritage. The cultural heritage of India is prudential of its spiritual richness and classical creativity. Vedic literature is the most wonderful and unparallel literary creation of Ancient India. Vedic literature has made this country worthy of worship. Vedas are without beginning and without end. Veda is author-less. It is Apauruseya. They are considered to be the direct word of the Divine. Vedic knowledge appeared in the dawn of the cosmos within the heart of Brahma. Brahma imparted this knowledge in the form of sound (Sabda) to his sons who are great sages. They transmitted the Vedic sound heard from Brahma to their disciples all over universe. There are four Vedas. They are the Rig Veda, Yajur Veda, Sama Veda and Atharva Veda. Four Vedas contain four types of texts such as The Samhitas, The Arankayas, The Brahmanas and The Upanishads. Veda is accepted as a code of conduct to Sanatan Dharma. The teaching of Veda is the concept that the individual is not an independent entity, but, rather, a part of the Universal Consciousness. Upanishads is the manifestation of Vedantic thought. Sada Darshan (Six Systems of Vedanta) is a very important part of Vedic philosophy. Swami Nigamananda a great Master of Vedic Literature achieved Nirbikalpa Sidhi of Vedanta in the year 1904. The philosophy of Vedanta is reflected in the creation of Swami Nigamananda. In his writings (Yogi Guru, Jnani Guru, Tantrik Guru, Premik Guru, Brahmacharya Sadhana and Vedanta Viveka) he has explained the main scriptures of Vedas such as The Upanishads, The Bramha Sutras and The Bhagavad Gita. His philosophy teaches us to love and live in a state of eternal freedom. The Philosophy of Swami Nigamananda is a synthesis of Sankar and Gouranga i.e. knowledge and love. Knowledge envisages the path of analysis and Love, the path of synthesis. In this way Nigamananda convincingly reconciled the two apparently contradictory creeds of Adi Shankaracharya and Gauranga Mohapravu. “He advised his disciples to combine Shankara’s view and Gournaga’s way and walk on this path of synthesis. In fact attainment of Jnana through Bhakti is the nucleus of his philosophy. Through his teachings and works, he proclaimed to the world the fundamental harmony of all religions that there are many paths which lead to the same goal”.
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Fort, Andrew O. "First Steps in Vedanta, Vedantic Texts For Beginners: Sadananda's Vedantasara, Baladeva's Prameya-Ratnaval, and a Brief Overview of Advaita Vedanta By Dinesh Chandra Bhattacharya Shastri - By Neal Delmonico." Religious Studies Review 32, no. 1 (January 2006): 62–63. http://dx.doi.org/10.1111/j.1748-0922.2006.00045_11.x.
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Saha, Santosh. "Tolerant Values and Practices in India: Amartya Sen’s ‘Positional Observation’ and Parameterization of Ethical Rules." Tattva - Journal of Philosophy 7, no. 1 (January 1, 2015): 51–84. http://dx.doi.org/10.12726/tjp.13.4.
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In explaining the reasons for sustained existence of tolerance in Indian philosophical mind and continuation of tolerant practices in socio-political life, Amartya Sen argues that tolerance is inherently a social enterprise, which may appear as contingent, but for all intents and purposes is persistent. Basing his thesis that is opposed to Cartesian dualism, which makes a distinction between mind and body, Sen submits that Indian system of universalizing perception finds a subtle form of connection between mind and body. He expands the ancient core worldview, Vasundhara kutumbakam (entire world as one family) as a secular tolerant civil code,1which makes a connection between the transcendental and the pragmatic planes of consciousness, and reconstructs a thesis about tolerance around human consciousness, which is collectivized and anchored in an acknowledged public space in society that is joined together psychologically as well as philosophically. Tolerance as consciousness can be regarded a necessary condition for playing the role of intentionality as stipulated by classical philosophy (Advaita Vedanta; buddhi, or intelligence as in Samkhya and Yoga). Aware of this ancient wisdom that accepts relativism as an impasse over some evaluative matter, Sen avoids the pitfalls of cultural relativism in tolerance by offering an argument that is based on the metaphysics of Advaita Vedanta and other religious and secular literature, and epitomizes an internationalizing virtue in tolerant traditions. I would examine some interconnected issues, such as the ethical “perimeter” of Sen’s philosophical observation of totalized value system and Indian tolerant attitudes in real life, etc., raising the broader question about the location of cultural identity in relation to supranational state organization. My chief argument is that Sen has been able to observe a connection between the Advaita Vedantic moral philosophy that informs that viewed from the Brahmanic perspective of absolute knowledge in unity, the apparent subject of duality is not the ultimate subject. My conclusion is that valuing of tolerance, individual liberty as well as civil rights is a particular contribution of Western thinking and philosophy; the Western advocates of these rights often provide ammunition to the non-Western critics of tolerance and human rights.
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Nicholson, Hugh, and R. Balasubramanian. "Advaita Vedanta." Journal of the American Oriental Society 124, no. 3 (July 2004): 561. http://dx.doi.org/10.2307/4132281.
Full textDissertations / Theses on the topic "Vedantes"
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Tomé, Marcelo Augusto Martins. "Estudo do desempenho tribológico de vedantes mecânicos recobertos por diamante CVD." Master's thesis, Universidade de Aveiro, 2005. http://hdl.handle.net/10773/4957.
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Mestrado em Ciências e Engenharia de MateriaisO objectivo fundamental do presente trabalho é a produção e caracterização do comportamento tribológico de novos sistemas vedantes de anéis cerâmicos de nitreto de silício (Si3N4) recobertos com diamante CVD (“Chemical Vapour Deposition”). Os anéis de empanque asseguram a vedação de veios em sistemas de circulação de fluidos de natureza diversa sendo sujeitos a solicitações tribológicas drásticas de natureza mecânica e/ou química. Os materiais cerâmicos são por isso uma classe em desenvolvimento para este tipo de aplicação. O Si3N4, de entre os cerâmicos técnicos, é um dos materiais com melhores propriedades mecânicas. Por sua vez, o diamante é um material inexcedível quanto à dureza e inércia química. Em estudos publicados sobre a potencial utilização do diamante CVD em sistemas vedantes, verificou-se que a baixa adesão a substratos convencionais de metal duro constituía o principal factor limitativo do tempo de vida, inviabilizando esta aplicação. No entanto, trabalhos anteriores do grupo de investigação em que se insere esta dissertação comprovaram a elevada adesão dos filmes de diamante CVD ao Si3N4. Por outro lado, há uma capacidade adquirida no fabrico de protótipos de anéis vedantes deste cerâmico. Com base nesta conjugação de experiência e perspectiva da excelência do sistema, procurou-se neste trabalho optimizar a espessura e rugosidade do revestimento de diamante CVD com vista ao estabelecimento da função vedante pretendida. Para além dos materiais envolvidos, é também um ponto inovador a realização de ensaios tribológicos em protótipos de sistemas vedantes mecânicos dinâmicos. Os ensaios tribológicos foram efectuados num tribómetro rotativo controlado por microprocessador, na configuração anel/anel, equipamento que simula, pela forma dos provetes, fluido de trabalho e parâmetros de operação, as condições de serviço dos sistemas de anéis vedantes. Testaram-se pares homólogos de anéis revestidos. Os parâmetros de ensaio situaram-se na gama de velocidade de rotação 500 - 2000 r.p.m. e carga normal total aplicada entre 0,3 e ≈1,0 kN, sob uma pressão de 2 bar de água destilada, à temperatura ambiente. Os ensaios tribológicos forneceram, em primeiro lugar, uma indicação do comportamento vedante em rodagem e no estado estacionário. Permitiram ainda a determinação do coeficiente de atrito bem como do produto pressão×velocidade (PV) mínimo e máximo de vedação, para cada par testado. O melhor sistema de vedação foi alcançado pelo par de anéis revestidos a diamante CVD com tamanho de grão mais fino (2 μm) garantido plena vedação para um intervalo PV entre 2,1 e 4,3 MPa⋅ms-1. O tempo cumulativo de funcionamento deste sistema atingiu cerca de 430 horas, correspondendo a uma distância total de deslizamento de aproximadamente 5730 km, sem quaisquer eventos indicadores de danificação das superfícies, isto é, sem desgaste mensurável. O coeficiente de atrito manteve-se baixo e em regime estacionário com um valor de 0,05. A ausência de vibrações ou picos instantâneos de atrito corroboram o excelente comportamento e estabilidade vedante deste novo tribosistema.
The main goal of the present work is the production and tribological behaviour characterization of a novel mechanical seal system based on CVD (Chemical Vapour Deposition) diamond coated silicon nitride (Si3N4) ceramic rings. Mechanical rings are used to seal rotating shafts of circulation systems of several distinct kinds of fluids, being submitted to drastic tribological solicitations, combining mechanical and chemical contributions. Ceramic materials are thus a class in development for this kind of application. Si3N4 is one of the technical ceramics with the best mechanical properties. On the other hand, diamond is the uppermost material concerning hardness and chemical inertness. In published works on the application of CVD diamond in sealing systems, its low adhesion to conventional hardmetal substrates was reported to be the main lifetime limiting factor, causing this application to be impracticable. Contrasting to this, previous works carried out by the hostage research group of the present dissertation, proved the high adhesion of CVD diamond films to Si3N4 substrates. Furthermore, there is an acquired know-how in the manufacturing of Si3N4 seal ring prototypes. Based on this experience and on the potential of the CVD diamond/Si3N4 system, the optimization of the thickness and roughness of the coating were selected as the main objectives of this work, seeking the intended sealing function. It was also an innovative point the accomplishment of tribological tests with mechanical seal prototypes. The tribological tests were carried out in a ring-onring microprocessor controlled rotary tribometer, with adequate sample geometries, working fluid and operation parameters, to simulate the field working behaviour. Homologous coated rings were tested. The experimental parameters were the following: rotational speed in the 500 - 2000 r.p.m. range; normal applied load between 0.3 and ≈1.0 kN; internal fluid (distilled water) pressure of 2 bar; room temperature. The tribological testing of the CVD diamond/Si3N4 mechanical seal system allowed the full characterisation of the running-in and stationary state regimes. Moreover, the friction coefficient was determined, as well as the minimum and maximum pressure×velocity product (PV), for each tested pair. The best sealing behaviour was found with the pair of Si3N4 coated rings with the finest grain (2 μm) polycrystalline diamond film. This system guaranteed a PV full sealing between 2.1 and 4.3 MPa⋅ms-1. The cumulative operation time of this system reached approximately 430 hours, corresponding to a total sliding distance of almost 5730 km, without any signs of surface damaging, i.e., no measurable wear. The stationary friction coefficient kept within a low value of 0.05. The absence of vibrations or instantaneous friction peaks corroborates the excellent behaviour and sealing stability of this new tribosystem.
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Martins, Bruno Miguel Teixeira. "Aplicação e ensaio de filmes finos de diamante em vedantes mecânicos." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/22254.
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Mestrado em Engenharia MecânicaO objetivo principal do presente trabalho consistiu na deposição de filmes de diamante sobre vedantes mecânicos e os seus ensaios numa bomba de água. Um vedante mecânico promove a ligação entre sistemas ou mecanismos, prevenindo a fuga de fluídos para o exterior. Estes, apesar de serem constituídos por materiais com boas propriedades, devido às condições exigentes do seu ambiente de trabalho, estão sujeitos ao desgaste da sua superfície podendo levar à sua incapacidade, provocando perdas de produção para troca dos empanques ou manutenção dos equipamentos. O diamante, devido às suas ótimas propriedades, como a elevada dureza e o baixo coeficiente de atrito, prefigurou-se como um material de revestimento para este tipo de dipositivos, facultando uma elevada resistência ao desgaste e diminuição do coeficiente de atrito, características que promovem melhorias no seu desempenho e tempo de vida. A deposição deste material com relativa simplicidade e baixo custo, tornou-se possível graças ao desenvolvimento de técnicas de Deposição a partir da Fase de Vapor (CVD) que permitiram o crescimento de diamante na forma de filmes finos (com propriedades similares ao diamante natural). A primeira fase desta dissertação foi dedicada à deposição de filmes de diamante em vedantes mecânicos de Carboneto de Tungsténio com Cobalto com auxílio à técnica HFCVD. Foram depositadas duas camadas de diamante (multicamada - MCD/NCD), com diferentes tamanhos de grão, com a finalidade de reter as melhores propriedades de cada tipo de filme. Algumas características chave, como a adesão do filme (uma das principais contrariedades dos filmes CVD e um dos aspetos mais importantes para conferir aos vedantes a capacidade de suportar as solicitações tribológicas e mecânicas a que estão sujeitos durante o seu funcionamento), nucleação, condições de deposição e pré-tratamentos foram estudados e potencializados para uma melhor deposição do diamante. Após esta efetuada, os revestimentos de diamante foram analisados com auxílio de técnicas próprias para esse fim (SEM e Raman). A segunda fase visa o ensaio dos vedantes depositados através da sua aplicação numa bomba de água, equipamento onde grande parte destes dispositivos são aplicados. Será analisado o seu comportamento em serviço, a ocorrência de falhas ou fuga de fluido para o exterior. Além disso, características como o desgaste superficial ou delaminação do filme da amostra vão ser investigadas, de forma a extrair conclusões da viabilidade da aplicação destes revestimentos de diamante em vedantes mecânicos de WC-Co com o intuito de incrementar o seu desempenho e tempo de vida.
The main point of this work consists in the deposition of diamond films over mechanical seals and their tests on a water pump. A mechanical seal promotes the connection between systems or mechanisms, preventing the flee of fluids to the exterior. These, although being constituted by materials with good properties, due to extreme conditions in their working environment, are liable to extreme surface wear, that can disable them. The diamond, due to its great properties, such as high hardness and low friction coefficient, is prefigured as an excellent choice to cover the surface of this devices, Characteristics that prolong their lifetime and boost their performance. The simplicity and low costness of this method, was possible to achieve due to the development of chemical vapor deposition techniques (CVD) that allowed the production of diamond in thin films (with similar properties to natural diamond). The first step of this dissertation was dedicated to the deposition of Diamond films in mechanical seals of tungsten carbide with cobalt using a technique called HFCVD. Two layers of diamond were deposited (multilayer – MCD/NCD), with different size of grain, with the purpose of retaining the best properties of each type of film. Some key properties like the film adhesion (one of the main setbacks of CVD films and one of the most important aspects that ensures the capacity to support the tribological and mechanical solicitations to which the film is subjected in operating conditions), nucleation, deposition conditions and pre-treatments were studied and potentialized for a better diamond deposition. After this process, the diamond coatings were analysed with the assistance of proper techniques (SEM and Raman). The second step focusses on the test of the mechanical seals installed in a water pump. The performance will be analysed, occurrence of failures or leakage of fluid to the exterior. Also, characteristics such as superficial wear or delamination of the sample film will be investigated, in order to draw conclusions on the feasibility of these coatings in mechanical seals (WC-Co) with the purpose of increasing their performance and life time.
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Soares, Rita Carolina Almeida. "Poder de mercado e dominância no mercado dos vedantes de cortiça." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/12453.
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Mestrado em EconomiaA base deste relatório foi o estágio curricular desenvolvido na Amorim Cork Composites, uma das empresas do Grupo Amorim. Relativamente ao Grupo Amorim muitas são as afirmações de que este Grupo é dominante no mercado da cortiça mas, não existem estudos realizados que o comprovem. Daqui surgiu, então, a ideia de realizar um estudo para o mercado dos vedantes de cortiça, entre 2008 e 2012, sobre a concentração de mercado e dominância. Neste estudo é utilizada uma medida alternativa ao índice Herfindahl-Hirschman, que é baseada nas quotas de mercado das duas maiores empresas do mercado. Esta situação deriva do facto deste índice não poder, por si só, ser usado para estabelecer o exercício de poder de mercado ou dominância. Os resultados deste estudo mostram que o Grupo Amorim é a empresa dominante durante todo o período em análise, mesmo depois de testada a possibilidade de variação das barreiras à entrada existentes.
The base of this report was a curricular internship developed in Amorim Cork Composites, one of the Amorim Group companies. Concerning the Amorim Group, there are many claims that this Group is dominant in the cork market, but there are no studies that prove it. That is what gave the idea to realize a study on the cork stoppers market, between 2008 and 2012, about market concentration and dominance. This study used an alternative measure to Herfindahl-Hirschman Index, which is based on the market shares of the two largest companies in the market. This stems from the fact that this index can not, by itself, be used to establish the exercise of market power or dominance. The results show that Amorim Group is the dominant firm throughout the analyzed period, even after tested the variation possibility of the entry barriers.
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Moreira, Lídia Maria Santos. "Vedantes de vinho: um estudo exploratório sobre as atitudes e preferências do consumidor português." Dissertação, Faculdade de Economia da Universidade do Porto, 2009. http://hdl.handle.net/10216/45490.
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Moreira, Lídia Maria Santos. "Vedantes de vinho: um estudo exploratório sobre as atitudes e preferências do consumidor português." Master's thesis, Faculdade de Economia da Universidade do Porto, 2009. http://hdl.handle.net/10216/45490.
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Castro, Pedro Afonso de. "Pares cerâmicos homólogos alumina/alumina para anéis de empanque." Master's thesis, Universidade de Aveiro, 2006. http://hdl.handle.net/10773/4692.
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Mestrado em Engenharia de MateriaisO propósito do presente trabalho é a produção, caracterização mecânica, microestrutural e avaliação do comportamento tribológico de pares homólogos de anéis vedantes (empanques) de alumina (Al2O3). Os anéis de empanque têm por função garantir a vedação em veios rotativos de equipamentos nos quais circulam fluidos. Dadas as solicitações tribológicas extremas a que os materiais constituintes dos anéis são sujeitos, por vezes em ambientes altamente corrosivos, a alumina apresenta-se como uma excelente alternativa aos materiais tradicionalmente usados na produção destes vedantes (metal duro, carbono grafitizado, ligas ferrosas, etc.) devido à combinação das suas propriedades mecânicas e inércia química. Foram sinterizados três lotes de alumina a diferentes velocidades de aquecimento do forno, mantendo constantes as restantes condições de processamento. O aumento do valor deste parâmetro traduziu-se num incremento da taxa de densificação, resultando a densidade relativa de r=97,2% para a velocidade de aquecimento mais elevada (Vaq=20ºC/min). Este lote apresenta valores de dureza e tenacidade à fractura de HV=15,4GPa e KIc=3,7MPa.m1/2 respectivamente, resistência à flexão σF=279MPa e módulo de elasticidade E=322GPa. Os ensaios tribológicos anel/anel realizaram-se com diferentes velocidades de rotação (w), no intervalo 500 a 2000rpm, pressão de fluido (PL, água destilada) entre 0,5 e 2bar, sob carga normal (Nt) variando até ao valor necessário para a vedação plena. Os vedantes de alumina apresentaram valores de coeficiente de atrito extremamente reduzidos (<0,05), impossibilitando mesmo em alguns casos a sua determinação por se localizarem abaixo do limite de sensibilidade da máquina. Para w=2000rpm e PL=2bar conseguiu-se a estanquicidade total em dois dos três lotes ensaiados, com cargas totais de Nt=0,438kN (lote menos denso) e Nt=0,420kN (lote com maior densidade), obtendo-se para o produto PV, onde P representa a pressão efectiva e V a velocidade linear, PV=1,523MPa.m/s e PV=1,324MPa.m/s respectivamente. No primeiro caso determinou-se ainda o limite máximo de funcionamento em vedação plena, registando-se para Nt=0,900kN o valor de PV=4,200MPa.m/s. A análise posterior dos anéis revelou superfícies polidas por acção do movimento relativo entre os anéis, com rugosidade inferior à medida previamente à realização dos testes, sem delaminação ou fractura, não evidenciando qualquer tipo de destruição. Foi ainda testado o comportamento tribológico com azeite, meio potencialmente mais agressivo, corroborando a capacidade de funcionamento deste sistema vedante.
The purpose of the present work is the production, microstructural and mechanical characterization, and evaluation of the tribological behaviour of self-mated pairs of alumina mechanical seals. These components are used to ensure sealing in rotating shafts in equipments where a fluid is flowing. Due to the drastic tribological solicitations that seal rings are usually exposed to, sometimes in highly corrosive environments, alumina is a potential alternative to the commonly used materials (hardmetal, graphitized carbon, nonferrous alloys, etc.) due to the good combination of mechanical properties and chemical inertness. Three grades of alumina were sintered using different heating rates, keeping constant the remaining processing conditions. The increase of this parameter lead to a higher densification rate, the highest density (r=97,2%) being achieved when using the highest heating rate (Vaq=20ºC/min). The main mechanical properties were the following: HV=15,4GPa, KIc=3,7MPa.m1/2, σF=279MPa and E=322GPa. Ring-on-ring tribological tests were conducted using different rotational speeds (w) from 500 to 2000rpm, fluid pressure (PL, distilled water) between 0,5 and 2bar, under a normal load (Nt) varying until the complete sealing. The tests showed that the alumina mechanical seals could guarantee full sealing conditions, with extremely low values of friction coefficient (<0.05), sometimes turning impossible the recording of the results, as they were below the equipment sensitivity. Using w=2000rpm and PL=2bar, full sealing was achieved in two of the three grades of the tested seals, under applied loads of Nt=0.438kN (grade with the lowest density) and Nt=0.420kN (grade with the highest density). PV (being P the effective pressure and V the linear speed) lower limiting conditions were PV=1.523MPa.m/s and PV=1.324MPa.m/s, respectively. For the first of the previous mentioned grades, the upper limit was also determined, being PV=4.200MPa.m/s with Nt=0.900kN. The surface analysis of the tested seals showed a well polished surface, due to the relative motion between the rings, with a lower roughness when compared to the nominal finishing. No delamination, fracture or any kind of destruction were observed. The tribological behaviour of the alumina rings was also characterized using olive oil, potentially more aggressive fluid, corroborating the adequateness of the present system. These results, combined to some of the intrinsic properties of alumina (corrosion resistance, chemical inertness, low density when compared with that of the most traditionally materials used in seals production) create the expectation that alumina could be a feasible alternative to the most widely used materials used in this kind of application.
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Fonseca, Joana da Silva. "Selantes butílicos isentos de COV." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21088.
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Mestrado em Engenharia QuímicaOs selantes butílicos, ou simplesmente mastiques, são produtos à base de borracha butílica que possibilitam a selagem, impedindo a passagem de fluidos através de superfícies e aberturas em diversos materiais. A facilidade de aplicação e a possibilidade de remoção após o seu uso, são duas vantagens que os distinguem de outros selantes, além de um rácio custo/benefício também bastante vantajoso. Estão disponíveis para venda, diluídos em solvente com aplicação a frio e isentos de solvente com aplicação a quente. Este projeto teve como objetivo desenvolver dois selantes de borracha butílica isentos de solvente (COV) para aplicação a frio: Selbutil-1 e Selbutil-2, tendo por base os produtos atualmente preparados pela empresa que contêm solvente (Sikabutyl-1 e Sikabutyl-2). Foi necessário reformular estes produtos no sentido de manter as suas características de desempenho ou, se possível, melhorá-las, diminuindo o impacto ambiental e torná-los menos perigosos para quem os manuseia. Desta forma recorreu-se a matérias-primas alternativas, seguindo-se o desenvolvimento de formulações e produção laboratorial. Efetuou-se um planeamento fatorial de experiências usando a metodologia de desenho de misturas para otimizar a percentagem de cargas, sílicas, plasticizantes e auxiliar de processo na formulação, sendo as variáveis resposta o escorrimento e o tempo de extrusão do selante. Os novos selantes Selbutil-1 e Selbutil-2 obtidos evidenciaram propriedades equivalentes aos de referência, nomeadamente, viscosidade, densidade, consistência e não possuem escorrimento. A única diferença foi a ausência de formação de pele, que se mostra estar associada à inclusão de solvente na preparação. As análises FTIR e os ângulos de contacto medidos sugerem que a composição à superfície do selante se modifica com a secagem do solvente possivelmente devido à migração preferencial de alguns constituintes da mistura como os plasticizantes.
The butyl sealants, or simply mastics, are butyl rubber based products that allow the sealing, preventing the passage of fluids through surfaces and openings in various materials. The ease of application and the possibility of removal after use, are two advantages that distinguish them from other sealants, as well as a quite advantageous cost / benefit ratio. They are available for sale, diluted in solvent for cold application and solvents free for heat application. This project aimed to develop two butyl rubber sealants free of solvent (VOC) for cold use: Selbutil-1 and Selbutil-2, which were based on two products currently produced by the company containing solvent (Sikabutyl-1 and Sikabutyl-2). It was necessary to reformulate these products to maintain its performance characteristics or if possible improve them, reducing the environmental impact and make them less dangerous for those who handle them. This way we used alternative raw materials, following the development of formulations and laboratory production. A factorial planning of experiences was developed using Mixture Design methodology to optimize the percentage of fillers, silicas, plasticizer and processing aid in the formulation, being response variables the outflow and the extruding time of the sealant. The new sealants obtained, Selbutil-1 and Selbutil-2, revealed equivalent properties to the references, in particular, viscosity, density, consistency and do not have outflow. The only difference was absence of skin formation, being a result of inclusion the solvent in the preparation. FTIR analyses and the measured angles of contact suggest that the composition at the surface of the sealant changes with the drying of the solvent, possibly due to preferential migration of some components of the mixture, as plasticizers.
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Reddy, Allu Amarnath. "Alkaline-earth aluminosilicate-based glass and glass-ceramic sealants for functional applications." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/15217.
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Doutoramento em Ciência e Engenharia dos MateriaisThe planar design of solid oxide fuel cell (SOFC) is the most promising one due to its easier fabrication, improved performance and relatively high power density. In planar SOFCs and other solid-electrolyte devices, gas-tight seals must be formed along the edges of each cell and between the stack and gas manifolds. Glass and glass-ceramic (GC), in particular alkaline-earth alumino silicate based glasses and GCs, are becoming the most promising materials for gas-tight sealing applications in SOFCs. Besides the development of new glass-based materials, new additional concepts are required to overcome the challenges being faced by the currently existing sealant technology. The present work deals with the development of glasses- and GCs-based materials to be used as a sealants for SOFCs and other electrochemical functional applications. In this pursuit, various glasses and GCs in the field of diopside crystalline materials have been synthesized and characterized by a wide array of techniques. All the glasses were prepared by melt-quenching technique while GCs were produced by sintering of glass powder compacts at the temperature ranges from 800−900 ºC for 1−1000 h. Furthermore, the influence of various ionic substitutions, especially SrO for CaO, and Ln2O3 (Ln=La, Nd, Gd, and Yb), for MgO + SiO2 in Al-containing diopside on the structure, sintering and crystallization behaviour of glasses and properties of resultant GCs has been investigated, in relevance with final application as sealants in SOFC. From the results obtained in the study of diopside-based glasses, a bilayered concept of GC sealant is proposed to overcome the challenges being faced by (SOFCs). The systems designated as Gd−0.3 (in mol%: 20.62MgO−18.05CaO−7.74SrO−46.40SiO2−1.29Al2O3 − 2.04 B2O3−3.87Gd2O3) and Sr−0.3 (in mol%: 24.54 MgO−14.73 CaO−7.36 SrO−0.55 BaO−47.73 SiO2−1.23 Al2O3−1.23 La2O3−1.79 B2O3−0.84 NiO) have been utilized to realize the bi-layer concept. Both GCs exhibit similar thermal properties, while differing in their amorphous fractions, revealed excellent thermal stability along a period of 1,000 h. They also bonded well to the metallic interconnect (Crofer22APU) and 8 mol% yttrium stabilized zirconium (8YSZ) ceramic electrolyte without forming undesirable interfacial layers at the joints of SOFC components and GC. Two separated layers composed of glasses (Gd−0.3 and Sr−0.3) were prepared and deposited onto interconnect materials using a tape casting approach. The bi-layered GC showed good wetting and bonding ability to Crofer22APU plate, suitable thermal expansion coefficient (9.7–11.1 × 10–6 K−1), mechanical reliability, high electrical resistivity, and strong adhesion to the SOFC componets. All these features confirm the good suitability of the investigated bi-layered sealant system for SOFC applications.
A concepção planar de células de combustível de óxido sólido (SOFC) é a mais promissora devido a sua fabricação mais fácil, um melhor desempenho e uma densidade de potência relativamente elevada. Nas SOFCs planares e outros dispositivos de electrólitos sólidos são necessárias vedações estanques ao gás ao longo das arestas de cada uma das células e entre os tubos de distribuição de gás e de pilha. Materiais vítreos e vitrocerâmicos (GC), em particular com composições baseadas em aluminosilicatos alcalino-terrosos, estão entre os materiais mais promissores para aplicações de vedação à prova de gás em SOFCs. Além do desenvolvimento de novos materiais à base de vidros e vitrocerâmicos, são também necessários novos conceitos para superar os desafios enfrentados pela tecnologia selante atualmente existente. O presente trabalho visa dar um contributo nesse sentido, propondo soluções de vedação para SOFCs e outras aplicações electroquímicas. Para o efeito, foram sintetizados vários vidros e GCs à base de diópsido, os quais foram caracterizados por recurso a uma grande variedade de técnicas. Todos os vidros foram preparados por fusão, enquanto os GCs foram produzidos por sinterização (tratamento térmico) de compactos de pó de vidro nas faixas de temperatura de 800 − 900 ºC por 1 − 1000 h. Além disso, foram estudados os efeitos de diversas substituições iónicas, especialmente de CaO por SrO, e de MgO + SiO2 por Ln2O3 (Ln = La, Nd, Gd, e Yb), em composições de aluminosilicatos à base de diópsido na estrutura, sinterização e cristalização dos vidros e nas propriedades dos GCs resultantes com particular relevância para as propriedades de vedação em SOFCs. Com base nos resultados obtidos neste estudo, foi possível propor um novo conceito de selante vritrocerâmico em bi-camadas que visa ultrapassar os desafios enfrentados pelos vedantes actualmente usados em SOFCs. Os sistemas designados por Gd−0,3 (em % molar: 20,62 MgO−18,05 CaO−7,74 SrO−46,40 SiO2−1,29 Al2O3−2,04 B2O3−3,87 Gd2O3) e Sr−0,3 (em % molar: 24,54 MgO−14,73 CaO−7,36 SrO−0,55 BaO−47,73 SiO2−1,23 Al2O3−1,23 La2O3−1,79 B2O3−0,84 NiO) foram seleccionados para realizar o conceito de bi-camada. Ambos os GCs exibem propriedades térmicas semelhantes, e excelente estabilidade térmica ao longo de um período de 1.000 horas, mas diferem nas suas fracções vítreas/cristalinas. Eles revelaram também elevada aptidão para se ligarem à interconexão metálica (Crofer22APU) e ao electrólito sólido (zircónia estabilizada com 8 mol% de ítria (8YSZ) sem a formação de camadas interfaciais indesejáveis entre os diferentes componentes das SOFCs. Duas camadas separadas compostas pelos vidros (Gd−0,3 e Sr−0.3) foram preparadas e depositadas sobre as interconexões metálicas através de uma abordagem tape casting. As bi-camadas vitrocerâmicas mostram boa capacidade de molhamento e ligação à placa Crofer22APU, coeficientes de expansão térmica adequados (9,7−11,1 × 10−6 K−1), confiabilidade mecânica, elevada resistividade eléctrica, e uma forte adesão aos componentes da SOFC. Todas estas características confirmam a boa adequação do sistema selante bi-camadas investigado para aplicações em SOFCs.
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Baumfield, Vivienne Marie. "Swami Vivekananda's practical Vedanta." Thesis, University of Newcastle upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261122.
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Roumanoff, Daniel. "Svami Prajnanpad, un maître de Vedanta contemporain." Paris 4, 1986. http://www.theses.fr/1986PA040050.
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Svami Prajnanpad (1891-1974) est un samnyasin bengali ayant reçu une formation scientifique, qui a présenté sous une forme nouvelle les grands mahāvākyas des Upaniṣads. Il se réfère à aucune école, à aucun maitre, à aucune tradition, mais se réclame de la science : "voir les choses comme elles sont". Son enseignement est présenté à partir d'extraits de lettres et d'entretiens enregistrés. Sont ainsi passées en revue les caractéristiques de l'appareil psychique (mental, pensées, émotions, désirs, egos), les lois de la vie (différence, changement, action-réaction). Le chemin de la réalisation consiste à saisir la dualité à bras le corps (voir et accepter), agir dans le monde pour en faire l'expérience et aboutir à la connaissance de la vérité c'est-à-dire à l'unité et à l'amour. Les relations avec autrui jouent un rôle essentiel comme banc d'essai de la compréhension et source de connaissance. Une étude des sources traditionnelles : Upaniṣads, yoga-vasistha etc. . . Ainsi que des sources psychanalytiques complètent cette présentationSvami Prajnanpad (1891-1974) is a Bengali samnyasin with a scientific background who has presented under a new form the great Mahāvākyas of the Upanishads He is independent from any school any teacher any tradition but accepts only the authority of science: to see things as they are. His teaching is presented from extracts of his letters and recorded private talks. A view is given of man's inner organs: mind, thinking, emotions, desires, ego, as well as of the law of life (truth of difference of change of action and reaction). Path to realization is to catch hold of duality (see and accept) act and enjoy in order to know truth i. E unity and love. Relationships with others play an essential role as a testing ground of the knowledge and as a source of knowledge. The study is completed with references to traditional sources (Upanishads and yogavasistha) and to psychoanalysis
Books on the topic "Vedantes"
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Dave, Nalini V. Vedanta and management: Relevance of Vedantic concepts in modern management practices. New Delhi: Deep & Deep Publications, 1997.
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Rāmanūjā. Vedanta deepa: Commentary on the Vedanta sutras. Bangalore: N.S. Anantha Rangachar, 2005.
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Raghavachar, S. S. Studies in Vedanta. Mysore: Prasaranga, University of Mysore, 1988.
Find full textBook chapters on the topic "Vedantes"
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Halligan, Fredrica R. "Vedanta." In Encyclopedia of Psychology and Religion, 1847. Boston, MA: Springer US, 2014. http://dx.doi.org/10.1007/978-1-4614-6086-2_724.
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Elia, Anthony J., Fredrica R. Halligan, David A. Leeming, Philip Browning Helsel, Lori B. Wagner-Naughton, James W. Jones, Jeffrey B. Pettis, et al. "Vedanta." In Encyclopedia of Psychology and Religion, 940. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-0-387-71802-6_724.
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Halligan, Fredrica R. "Vedanta." In Encyclopedia of Psychology and Religion, 2423. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24348-7_724.
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Koller, John M. "Change and Reality: Vedanta." In Oriental Philosophies, 83–99. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-08237-7_8.
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Hick, John. "The Vedantic Theory of Reincarnation." In Death and Eternal Life, 311–31. London: Palgrave Macmillan UK, 1985. http://dx.doi.org/10.1007/978-1-349-18017-2_17.
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Grätzel, Stephan, and Armin Kreiner. "Vedanta (advaita und vishistadvaita) und Buddhismus." In Religionsphilosophie, 257–83. Stuttgart: J.B. Metzler, 1999. http://dx.doi.org/10.1007/978-3-476-05028-1_18.
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Wade, Stephen. "The Influence of Vedanta on the Novels." In Christopher Isherwood, 61–78. London: Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21877-6_5.
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Barua, Arati. "Introducing Schopenhauer’s Philosophy of the World, Self and Morality in the Light of Vedantic and Non-Vedantic Wisdom." In Schopenhauer on Self, World and Morality, 1–10. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5954-4_1.
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Pradhan, Ramesh Chandra. "Self, World, and Morality: Schopenhauer, Wittgenstein, and Vedanta." In Schopenhauer on Self, World and Morality, 21–33. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5954-4_3.
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Jatana, Renu, and Mehjabeen Barodawala. "Sustainable Development in India: A Case Study of Vedanta." In Accounting, Finance, Sustainability, Governance & Fraud: Theory and Application, 13–23. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9588-9_2.
Full textConference papers on the topic "Vedantes"
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Skorokhodova, Tatiana. "Neo-Vedantism in the Bengal Renaissance: Genesis, Foundations and Development in XIX Century." In 2nd International Conference on Contemporary Education, Social Sciences and Humanities (ICCESSH 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iccessh-17.2017.17.
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Sengupta, Sutapa. "Tracing of Baul Ideology From Vedanta To Mysticism: Religious Aspect Of Folk Tradition." In Annual International Conference on Contemporary Cultural Studies (CCS 2017). Global Science & Technology Forum (GSTF), 2017. http://dx.doi.org/10.5176/2382-5650_ccs17.52.
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Bagai Bhatia, Shabani, and Vivek Suneja. "CASE STUDY ON INDIAN ICT BASED E-LEARNING PLAYER VEDANTU: PERSONALIZED LIVE ONLINE TUTORING." In 10th annual International Conference of Education, Research and Innovation. IATED, 2017. http://dx.doi.org/10.21125/iceri.2017.1817.
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Dura, Ioan. "Language, Definition and Transcendence in the Philosophy of Vedantic Non-Dualism. Landmarks for an Aphophatic Knowledge of the Ultimate Reality." In The concepts of "transcendence" and "immanence" in the Philosophy and Theology. EDIS - Publishing Institution of the University of Zilina, Slovak Republic, 2016. http://dx.doi.org/10.18638/dialogo.2015.2.2.9.
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