Academic literature on the topic 'Liseed Oil'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Liseed Oil.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Liseed Oil"
1
Ja'afar, Yusuf, Hussaini Bala, and Ahmad Muhammded Lawal. "Determinants of Corporate Environmental Accounting Disclosure of Oil and Gas Firms in Nigeria." Global Business Management Review (GBMR) 13, Number 1 (June 30, 2021): 16–36. http://dx.doi.org/10.32890/gbmr2021.13.1.2.
Full textAbstract:
This study examines the cognitive factors that determine corporate environmental accounting disclosures (CEAD). The population consists of all the fourteen (14) listed oil and gas firms in Nigeria. Panel data were obtained from the annual reports and accounts of the firms for the period of 2010 to 2019. A correlational research design was used and the data were analyzed using the Generalized Least Square regression (random model). The study found that firm size; leverage and multi-national companies have positive significant influence on the CEAD of listed oil and gas firms in Nigeria. Whilst firm growth has a negative significant relationship with the CEAD of listed oil and gas firms in Nigeria. It is concluded that larger firms and multi-national companies in the Nigerian oil and gas sector have high likelihood of disclosing environmental accounting information. Thus, it is recommended that the management of listed oil and gas firms in Nigeria should expand their size by acquiring more assets, maintain a consistent growth by exploring more opportunities while improving their gearing ratio to ensure a stable balance between the proportion of debt and assets. It therefore, highlighted the need for Securities and Exchange Commission (SEC) to come up with enabling laws geared towards ensuring that listed oil and gas firms in Nigeria embrace CEAD. Furthermore, Global Environmental Disclosure Index (GEI) should be considered as the most acceptable yardstick for measuring environmental accounting by the listed oil and gas firms in Nigeria.
2
Li, Qiming, Ke Cheng, and Xiaoguang Yang. "Impacts of Oil Price Shocks on the Returns of China's Listed Oil Companies." Energy Procedia 75 (August 2015): 2604–9. http://dx.doi.org/10.1016/j.egypro.2015.07.329.
Full text
3
SCHUDEL, A. A. "Vaccines and OIE listed diseases." Revue Scientifique et Technique de l'OIE 26, no. 2 (August 1, 2007): 523–25. http://dx.doi.org/10.20506/rst.26.2.1756.
Full text
4
Khin, Aye Aye, and Kho Guan Khai. "Estimation of the Company Value of Palm Oil Production İn Malaysian Listed Companies: The Panel Data Model Approach." 12th GLOBAL CONFERENCE ON BUSINESS AND SOCIAL SCIENCES 12, no. 1 (October 8, 2021): 85. http://dx.doi.org/10.35609/gcbssproceeding.2021.12(85).
Full textAbstract:
The production of crude palm oil in Malaysia fluctuated from 1.2 million tonnes in 2010 to 1.8 million tonnes in 2018. For the domestic consumption of crude palm oil in Malaysia increase gradually between 2.2 million tonnes in 2010 and 3.6 million tonnes in 2018. Besides that, Malaysia was one of the major oil exporters among the 10 countries of the Association of South East Asian Nations (ASEAN) and the exports of palm oil constituted about 90% of Malaysia's palm oil production. The exports of palm oil in Malaysia fluctuated from 1.3 million tonnes in 2010 to 1.4 million tonnes in 2018 whereas the imports of Malaysia's crude palm oil also fluctuated significantly from 121,300 tonnes in 2010 to 108,600 tonnes in 2018. Recently, there were many accusations on palm oil in Malaysia due to the environmental unfriendly product by the European Parliament and decided to ban palm oil biofuel by 2020. This will have negative impact on the company value (company's share price) by reduction in the revenue for the palm oil production companies. Moreover, palm oil was one of the most important agricultural commodities in the world and it was also the fourth-largest contributor to the Malaysian economy. Malaysia's palm oil industry has been a prominent industry that created economic growth and development. Therefore, this research was very important because the world's palm oil production was growing every year, driven largely by the growth of the European Union's biofuel markets and food demand in India and China (Clay, 2013). The palm oil industry facing the another challenging issue was to demonstrate its commitment to sustainable palm oil production. To overcome this issue, many agricultural food industries were promoting certified sustainable palm oil (CSPO) as proof of sustainability in the palm oil supply chain and achieved the buyer's demand (May, 2012). This situation has raised uncertainty to investigate the determinants of the company value in Malaysia's palm oil industry. Furthermore, there are many researchers had done the research over the past few decades, so there are many different perspectives on the determinants of company value in the palm oil industry in Malaysia. Keywords: Environmental Accounting (EA), Environmental Performance (EP), Information Disclosure (IN), Company Value (CV), Malaysian Selected Palm Oil Listed Companies.
5
Hsiao, Cody Yu-Ling, Weishun Lin, Xinyang Wei, Gaoyun Yan, Siqi Li, and Ni Sheng. "The Impact of International Oil Prices on the Stock Price Fluctuations of China’s Renewable Energy Enterprises." Energies 12, no. 24 (December 5, 2019): 4630. http://dx.doi.org/10.3390/en12244630.
Full textAbstract:
In order to address a series of issues, including energy security, global warming, and environmental protection, China has ranked first in global renewable investment for the seventh consecutive year. However, developing a renewable energy industry requires a significant capital investment. Also, the international oil price fluctuations have an important impact on the stock prices of renewable energy firms. Thus, in order to provide implications for market investment as well as policy recommendations, this paper studied the spillover effect of international oil prices on the stock prices of China’s renewable energy listed companies. We used a Vector Autoregressive (VAR) model with innovations using a Factor-GARCH (Generalized Autoregressive Conditional Heteroskedasticity) process to evaluate the impact of market co-movements and time-varying volatility and correlation between the international oil price and China’s renewable energy market. The results show that the international oil price has a significant price spillover effect on the stock prices of China’s renewable energy listed companies. Moreover, the fluctuations of international oil prices have an influence on the stock price variations of Chinese renewable energy listed companies.
6
Sangeetha, S., and S. Pavithra Vanshi. "Brent Crude Oil Price Fluctuations and Its Impact on Oil Companies’ Scrips Listed in BSE." Asian Journal of Research in Social Sciences and Humanities 6, no. 7 (2016): 1079. http://dx.doi.org/10.5958/2249-7315.2016.00493.7.
Full text
7
Kumar, Rakesh. "Examining the Dynamic and Non-linear Linkages between Crude Oil Price and Indian Stock Market Volatility." Global Business Review 18, no. 2 (March 16, 2017): 388–401. http://dx.doi.org/10.1177/0972150916668608.
Full textAbstract:
The present study is an attempt to examine the dynamic impact of crude oil price variations in the international market on the Indian stock market volatility. For the purpose, the study uses crude oil monthly price expressed in dollar per barrel, Bombay Stock Exchange (BSE)-listed index BSE Sensex and National Stock Exchange (NSE)-listed CNX Nifty prices for the period from January 2001 to December 2014. GARCH (1,1) model with net crude oil price change as exogenous variable is used to estimate the impact of net oil price change in international market on the conditional volatilities of both the indices. The findings report that net oil price change has a significant impact upon the conditional volatility of both the indices. These findings show that investors redesign their portfolios in response to crude oil price variations in the international market. They can use crude oil price as an important exogenous variable in forecasting models of stock returns and risk in the Indian stock market.
8
Suvanova, Kurkam, Changmin Lee, and Hyoung-Goo Kang. "Will Uzbekistan’s oil and gas industry benefit from international listing?" Problems and Perspectives in Management 14, no. 2 (June 13, 2016): 262–71. http://dx.doi.org/10.21511/ppm.14(2-2).2016.01.
Full textAbstract:
Uzbekistan’s oil and gas industry is experiencing declining production due to the depletion of existing oil and gas fields and aging production infrastructure. A multi-level organizational structure at Uzbekneftegaz is another reason for low efficiency of the industry, which causes the problems of increased bureaucracy, increased tax burden and inefficient allocation of resources. Partial privatization of Uzbekneftegaz can be an efficient tool in attracting alternative financing without putting the burden on the state budget and not ceding government control. Being listed on the international market, Uzbekneftegaz will have to follow internationally accepted corporate governance standards. This will have a positive impact on the efficiency and productivity of the industry
9
DeHaven, Leigh, and Rebecca Tirrell. "HOW TO LIST A NEW PRODUCT ON THE NATIONAL OIL AND HAZARDOUS POLLUTION, SUBPART J PRODUCT SCHEDULE." International Oil Spill Conference Proceedings 2008, no. 1 (May 1, 2008): 657–60. http://dx.doi.org/10.7901/2169-3358-2008-1-657.
Full textAbstract:
ABSTRACT In light of the recently updated U.S. Coast Guard Regulation for Vessel Response Plans, which include requirements for vessel dispersant response capabilities and with the recent expansion of many U.S. Coastal Dispersant ?reauthorization Zones, it is important that both alternative oil spill chemical countermeasure product manufacturers and oil spill responders have an understanding of the National Oil and Hazardous Substance Pollution, Subpart J Product Schedule (NCP Product Schedule). The NCP Product Schedule lists alternative chemical countermeasures which may be used in oil spills in the United States if authorized by a Federal On-Scene Coordinator with consultation from the Regional Response Team including local Trustees. The product types currently listed on the NCP Product Schedule include dispersants, surface washing agents, bioremediation agents and miscellaneous oil spill control agents. Sorbents are also defined in the NCP Product Schedule, but they may or may not be required to be listed on the NCP Product Schedule depending upon their composition. The unauthorized use of oil spill chemical countermeasure products listed on the NCP Product Schedule on an on water oil spill is a violation of the Clean Water Act. In addition, the use of chemical products that are not listed on the NCP Product Schedule on oil spills on waters of the United States is also a violation of the Clean Water Act. Before a chemical countermeasure product is used during an oil spill in waters of the United States, new products must meet the data requirements stated in Subpart J of the NCP Product Schedule regulation (40 Code of Federal Regulations Part 300.900). The United States Environmental Protection Agency (EPA) maintains and updates the NCP Product Schedule. The EPA reviews the required data packages for new products and regularly updates the NCP Product Schedule and Technical Notebook on the NCP Product Schedule website (www.epa.gov/emergencies). This paper and poster will outline the steps to list a new product and provide background information on the NCP Product Schedule.
10
Wang, Xuan Ya, Ya Ze Chen, Hong Geng, and Jie Gao. "VOCs Recovery Technology Status on Chinese Oil Terminal." Applied Mechanics and Materials 209-211 (October 2012): 1883–87. http://dx.doi.org/10.4028/www.scientific.net/amm.209-211.1883.
Full textAbstract:
VOCs recovery technology on Chinese oil terminal has been listed as one of five “key energy saving and reduction projects during 12nd five years plan period” by Water Department of MOT, which can bring huge economic benefit. These technologies are mature in some international countries. Chinese VOCs system on Oil terminal are in the status of “initial stage', both the system and regulation required to improve a lot, which the implemented extent also be affected due to special problems caused by Chinese national condition. This paper compared the difference between domestic and international oil terminal VOCs recovery technology, listed the current development situation and barriers of VOCs recovery technology on oil terminal, and also analyzed the issues that should be resolved for extending VOCs technology on oil terminal. A brief introduction about started work be gave at the end of this paper. 
Dissertations / Theses on the topic "Liseed Oil"
1
DEHONOR, MARQUEZ ETHNICE 553799, and MARQUEZ ETHNICE DEHONOR. "Evaluación de los parámetros de sensado de compuestos poliméricos con nanotubos de carbono, respecto a la composición de la matriz polimérica a base de aceites de linaza xilitolado y epoxidado." Tesis de doctorado, Universidad Autónoma del Estado de México, 2019. http://hdl.handle.net/20.500.11799/105651.
Full textAbstract:
Tesis de Doctorado en Ciencia de MaterialesEste trabajo consistió en la obtención de sensores de Compuestos Poliméricos Conductores (CPC), a base de aceites vegetales y Nanotubos de Carbono de Pared Múltiple (NTCPM); así como su evaluación a la presencia de diferentes disolventes.
2
Mohammed, Sani D. "Social and environmental disclosures : a comparative analysis of listed Nigerian and UK oil and gas companies." Thesis, Abertay University, 2016. https://rke.abertay.ac.uk/en/studentTheses/5e9bd304-82f0-4be7-b151-01fcc20019e2.
Full textAbstract:
Exploration, production and marketing of oil and gas by listed Nigerian oil and gas companies are fraught with lots of negative social and environmental impacts. Corporate social disclosure is a medium employed by corporations to communicate their impacts and commitments to the society and environment. Therefore, the main aim of this study is to describe and explain social and environmental disclosure practices by listed Nigerian oil and gas companies as gauged with disclosure by listed UK oil and gas companies for the period 2004-2013. The objectives are to determine the nature of disclosures by sampled companies, measure and analyse quantity and quality of the disclosures, analyse trends of the disclosures, find out differences in the disclosures and to explore the effects of corporate characteristics on the disclosures. Content analysis of annual reports and accounts and sustainability reports, scoring quality of disclosures based on Global Reporting Initiative disclosure guidelines, two samples t-tests and Panel Corrected Standard Errors (PCSE) regression analysis were employed to achieve the aim and objectives of the study. Legitimacy debate and vulnerability and exploitability analytical framework were espoused to develop a theoretical framework to underpin the study. Results indicate Nigerian companies making disclosure on fewer social and environmental aspects than UK companies. Quantity and quality of disclosure by Nigerian companies are low compared to UK companies. While quantity of disclosure by both showed increasing trends, quality of disclosure depicted decreasing trends. Sampled companies are found complying with mandatory social disclosure. Corporate size, leverage, efficiency and liquidity are found significant in explaining disclosures by sampled companies. Low quantity and quality of disclosure by listed Nigerian oil and gas companies is indicating low social accountability. This result may be useful to policy makers in the industry to dialogue with managers of the companies on the importance of their social accountability to overall national sustainable development efforts. Likewise, policy makers may put in place regulatory and enforcement mechanisms on social disclosures as mandating disclosure is found effective. Disclosure practices by listed Nigerian oil and gas companies portrayed the significance of colonial relationship between Nigeria and the UK. The use of modified words counts content analysis, and the theoretical framework that underpins the study might be of significance in this study in particular and social disclosure studies in general.
3
Alenezi, Marim. "The impact of exchange rate, interest rate and oil price fluctuations on stock returns of GCC listed companies." Thesis, University of Plymouth, 2015. http://hdl.handle.net/10026.1/3658.
Full textAbstract:
Exchange rate risk, interest rate risk and oil price fluctuations are the most demonstrated risks in the GCC (Gulf Cooperation Council) countries (Arouri and Nguyen, 2010). Research, however, in this area is still underdeveloped. The importance of this study is to contribute to this research gap. This research aims to show how these three risks affect firms' market values by examining 473 listed firms in Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and United Arab Emirates for the period January 2007 to June 2012. The research further examines the determinants of these risks. The study uses the AR (1) EGARCH-M model. The results indicate that stock returns in GCC countries are influenced by the exchange rate risk, interest rate risk and oil price risk. However, the exposure was highest for exchange rate risk and lowest for interest rate risk. While the effects of these risks were mixed, overall, exchange rate risk and oil price risk showed more positive significance as compared to the interest rate risk that showed more negatively significant effect on firm values. The level of the effect of these risk also differed from country to country. However, firms in United Arab Emirates revealed the highest exposure to all the three risks while those in Saudi Arabia showed the least exposed to the three risks. Oman firms also showed high exposure to exchange rate and interest rate risks. The segregated results overall showed lower exposure of financial firms as compared to non-financial firms. However, the non-financial firms in Bahrain were more exposed to the risks than the financial firms. In Saudi Arabia, the financial firms revealed the least exposure to the risk suggesting effective risk management practices. In addition, foreign operations and firm size had a significant influence on the extent of the firms’ exposure to all the three risks. Leverage also influenced the level of exposure to interest rate risk. Profitability, growth and liquidity did not reveal a significant influence on the level of exposure. Further, increasing the risk does not lead to increased returns in most of the GCC countries. The risk-return parameters were largely negative. However, positive news increases return volatility more than negative news in most countries. Also, the current volatility of most GCC firms’ returns are time varying, are a function or past innovation and past volatility. The volatility of stock returns, which is affected by changes in the risk factors, could demonstrate the non-prioritisation of risk management by firms.
4
Bala, Masud. "Effects of IFRS adoption on the financial statements of Nigerian listed entities : the case of oil and gas companies." Thesis, Abertay University, 2015. https://rke.abertay.ac.uk/en/studentTheses/2a81c014-18a6-4372-90c8-985f6ad8e0d3.
Full textAbstract:
On 28 July 2010, the Nigerian Federal Executive Council approved January 1, 2012 as the effective date for the convergence of Nigerian Statement of Accounting Standards (SAS) or Nigerian GAAP (NG-GAAP) with International Financial Reporting Standards (IFRS). By this pronouncement, all publicly listed companies and significant public interest entities in Nigeria were statutorily required to issue IFRS based financial statements for the year ended December, 2012. This study investigates the impact of the adoption of IFRS on the financial statements of Nigerian listed Oil and Gas entities using six years of data which covers three years before and three years after IFRS adoption in Nigeria and other African countries. First, the study evaluates the impact of IFRS adoption on the Exploration and Evaluation (E&E) expenditures of listed Oil and Gas companies. Second, it examines the impact of IFRS adoption on the provision for decommissioning of Oil and Gas installations and environmental rehabilitation expenditures. Third, the study analyses the impact of the adoption of IFRS on the average daily Crude Oil production cost per Barrel. Fourth, it examines the extent to which the adoption and implementation of IFRS affects the Key Performance Indicators (KPIs) of listed Oil and Gas companies. The study further explores the impact of IFRS adoption on the contractual relationships between Nigerian Government and Oil and Gas companies in terms of Joint Ventures (JVs) and Production Sharing Contracts (PSCs) as it relates to taxes, royalties, bonuses and Profit Oil Split. A Paired Samples t-test, Wilcoxon Signed Rank test and Gray’s (Gray, 1980) Index of Conservatism analyses were conducted simultaneously where the accounting numbers, financial ratios and industry specific performance measures of GAAP and IFRS were computed and analysed and the significance of the differences of the mean, median and Conservatism Index values were compared before and after IFRS adoption. Questionnaires were then administered to the key stakeholders in the adoption and implementation of IFRS and the responses collated and analysed. The results of the analyses reveal that most of the accounting numbers, financial ratios and industry specific performance measures examined changed significantly as a result of the transition from GAAP to IFRS. The E&E expenditures and the mean cost of Crude Oil production per barrel of Oil and Gas companies increased significantly. The GAAP values of inventories, GPM, ROA, Equity and TA were also significantly different from the IFRS values. However, the differences in the provision for decommissioning expenditures were not statistically significant. Gray’s (Gray, 1980) Conservatism Index shows that Oil and Gas companies were more conservative under GAAP when compared to the IFRS regime. The Questionnaire analyses reveal that IFRS based financial statements are of higher quality, easier to prepare and present to management and easier to compare among competitors across the Oil and Gas sector but slightly more difficult to audit compared to GAAP based financial statements. To my knowledge, this is the first empirical research to investigate the impact of IFRS adoption on the financial statements of listed Oil and Gas companies. The study will therefore make an enormous contribution to academic literature and body of knowledge and void the existing knowledge gap regarding the impact and implications of IFRS adoption on the financial statements of Oil and Gas companies.
5
Kountourakis, Stenya [Verfasser], and Markus [Akademischer Betreuer] Taube. "Chinese Listed National Oil Companies: an Analysis of the Minor Shareholder within an Agency Theory Framework / Stenya Kountourakis ; Betreuer: Markus Taube." Duisburg, 2020. http://d-nb.info/121759499X/34.
Full text
6
Pacheco, Jos? Marcos Leite. "An?lise de Sustentabilidade em Projetos de Instala??es de Produ??o de Petr?leo." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12974.
Full textAbstract:
Made available in DSpace on 2014-12-17T14:08:51Z (GMT). No. of bitstreams: 1
JoseMLP_DISSERT.pdf: 1132165 bytes, checksum: 7910417de7d9b74643df414294a47b53 (MD5)
Previous issue date: 2012-11-01A proposal for a global analysis of sustainability in projects related in oil facilities is presented. By considering economic, environmental and social aspects in the early stages of design, the suggested method is more comprehensive and can be used to complement the analysis commonly applied in the petroleum industry, such as: Study of Technical and Economic Feasibility; Environmental Impact Assessment and Risk Analysis. Several authors, associations, certification bodies and oil companies suggest different approaches to study sustainability in some specific activities (or industries). In this study, a checklist of significant sustainability aspects for the oil industry (surface facilities) was assembled. In addition, a matrix was developed to assess the sustainability items relevant to these projects. In this work, the checklist interacts with the matrix to perform a "Preliminary Analysis of Sustainability of the Enterprise" (APSE). This method allows the identification of aspects that contribute significantly to global sustainability. From this analysis, which includes economic, social and environmental aspects, is built a report that is used to analyze qualitatively and quantitatively the impact of the sustainability aspects of the project. In this analysis are identified items that strongly influence the economic, social or environmental aspects and evaluated alternatives that can increase the overall sustainability of the project. Finally, the alternatives that can be used to indicate the most sustainable option are identified. This method was applied in a project (design) of a small offshore platform. This case study shows how the APSE can contribute to the identification of sustainability initiatives for the enterprise. The results showed that relevant aspects can contribute decisively to global sustainability. Finally, it was observed that the proposed method can contribute to increased rates of sustainability, even after application of analysis commonly used in these projects
Apresenta-se uma proposta para a an?lise global da sustentabilidade em projetos relacionados ?s instala??es de petr?leo. Por considerar aspectos econ?micos, ambientais e sociais nas etapas iniciais do projeto (design), o m?todo sugerido ? mais abrangente e pode ser utilizado para complementar as an?lises comumente aplicadas na ind?stria do petr?leo, como: Estudo de Viabilidade T?cnica e Econ?mica - EVTE; Estudo de Impacto Ambiental - EIA e as an?lises de riscos. V?rios autores, associa??es, ?rg?os certificadores e empresas de petr?leo sugerem diferentes abordagens para estudar a sustentabilidade em algumas atividades (ou ind?strias) espec?ficas. Neste trabalho, foi montada uma lista de verifica??o com aspectos de sustentabilidade significativos para a ind?stria do petr?leo (instala??es de superf?cie). Al?m disso, foi elaborada uma matriz para avaliar os itens relevantes para sustentabilidade nestes empreendimentos. Neste trabalho, a lista de verifica??o interage com a matriz para a realiza??o de uma An?lise Preliminar de Sustentabilidade do Empreendimento (APSE). Esta proposta permite identificar aspectos que contribuam significativamente para a sustentabilidade global. A partir desta an?lise, que inclui aspectos econ?micos, sociais e ambientais, ? constru?do um relat?rio que ? utilizado para analisar qualitativamente e quantitativamente os impactos dos aspectos na sustentabilidade do empreendimento. Nesta an?lise s?o identificados itens que influenciam fortemente os aspectos econ?micos, sociais ou ambientais e s?o avaliadas as alternativas que possam incrementar a sustentabilidade global do empreendimento. Finalmente, s?o identificadas as alternativas que podem ser utilizados para indicar a op??o mais sustent?vel. A APSE foi aplicada num projeto de uma pequena plataforma offshore. Este estudo de caso mostra como a APSE pode contribuir para a identifica??o de a??es pr?-sustentabilidade para o empreendimento. Os resultados mostraram que aspectos relevantes contribuem decisivamente para a sustentabilidade global. Finalmente, observou-se que o m?todo proposto pode contribuir para o aumento dos ?ndices de sustentabilidade, mesmo ap?s a aplica??o das an?lises comumente utilizadas nestes empreendimentos
7
Ribeiro, Fernanda Pinheiro de Carvalho. "Obten??o de rutina ricinoleato atrav?s da rea??o de esterifica??o com ?leo de mamona." Universidade Estadual de Feira de Santana, 2016. http://localhost:8080/tede/handle/tede/475.
Full textAbstract:
Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2017-07-12T22:04:17Z
No. of bitstreams: 1
Tese vers?o final com ficha.pdf: 2919026 bytes, checksum: e0cf3c8db3a8cc81cb105cb2fbb154b3 (MD5)Made available in DSpace on 2017-07-12T22:04:17Z (GMT). No. of bitstreams: 1 Tese vers?o final com ficha.pdf: 2919026 bytes, checksum: e0cf3c8db3a8cc81cb105cb2fbb154b3 (MD5) Previous issue date: 2016-08-03
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
The flavonoid rutin (3-0-rutinos?deo-quercetin) stands out among the natural products as a promising alternative in the fight against degenerative diseases and related to aging. However, the low solubility and stability thereof in different media, especially lipophilic limited applications in pharmaceutical preparations. The biocatalytic transformation by enzymatic acylation has been suggested by several authors, with good reaction yields. In this sense, the objective of this study was to promote the enzymatic acylation of rutin, using castor oil as acylating agent and lipase as a catalyst, to characterize the formed product, estimate the efficiency of bioconversion, and to investigate in vitro the antioxidant activity and cytotoxic effect opposite the reaction product Vero cells. The catalytic transformation occurred at 50?C for 120 hours. The product was subjected to column chromatography, followed by filtration by Sephadex LH-20. The chemical structure of rutin-O-ricinoleate was determined by Nuclear Magnetic Resonance (NMR) 1H and 13C and by liquid chromatography / mass spectroscopy (HPLC/MS). In another experiment, it was observed the formation of the ester content by High Performance Liquid Chromatography coupled to a detector diode arrangements (HPLC-DAD) under conditions which allow assessing the reaction yield over 120 hours. The analytical method proposed has been validated considering the linearity parameters, accuracy, precision, limit of quantification and detection proved to be suitable for quantification of ricinoleato rutin. It was found by this method that the reaction product maintained the antioxidant capacity of rutin and there was no evidence of cytotoxicity.
O flavonoide rutina (quercetina-3-0-rutinos?deo) se destaca entre os produtos naturais como uma alternativa promissora no combate ?s doen?as degenerativas e relacionadas ao envelhecimento. No entanto, a baixa solubilidade e estabilidade da mesma em diferentes meios, especialmente lipof?licos, limitam as aplica??es em prepara??es farmac?uticas. A transforma??o biocatal?tica, atrav?s da acila??o enzim?tica, tem sido sugerida por diversos autores, com bons rendimentos reacionais. Neste sentido, o objetivo do presente trabalho foi promover a acila??o enzim?tica da rutina, utilizando ?leo de mamona como agente acilante e lipase como catalizador, caracterizar o produto formado, estimar o rendimento da bioconvers?o, al?m de investigar in vitro a atividade antioxidante e o efeito citot?xico do produto reacional frente ?s c?lulas Vero. A transforma??o catal?tica ocorreu em temperatura de 50?C, durante 120 horas. O produto foi submetido ? cromatografia em coluna, seguida de filtra??o por Sephadex LH-20. A estrutura qu?mica da rutina-O-ricinoleato, foi determinada por Resson?ncia Magn?tica Nuclear (RMN) 1H e de 13C e por cromatografia l?quida/espectroscopia de massas (CLAE/EM). Em outro experimento, foi verificado o teor de forma??o do ?ster por Cromatografia ? L?quidos de Alta Efici?ncia acoplado a um detector de arranjos Diodos (CLAE-DAD), em condi??es que permitiram avaliar o rendimento reacional ao longo de 120 horas. O m?todo anal?tico proposto foi validado considerando os par?metros de linearidade, exatid?o, precis?o, Limites de quantifica??o e de detec??o mostrando-se adequado para a quantifica??o da rutina ricinoleato. Verificou-se pelos m?todos avaliados, que o produto reacional manteve a capacidade antioxidante da rutina e que n?o houve evid?ncia de citotoxicidade.
8
Siqueira, Mariana de. "An?lise jur?dico-constitucional do fomento aos campos maduros de produ??o de petr?leo no Brasil." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13897.
Full textAbstract:
Made available in DSpace on 2014-12-17T14:27:11Z (GMT). No. of bitstreams: 1
MarianaS_capa_a_resumo.pdf: 271175 bytes, checksum: 926338aea632e3cbde76e722465b1d6e (MD5)
Previous issue date: 2009-09-10Instituto Brasileiro de Petr?leo, G?s e Biocombust?veis
The oil activities in Brazil had been started in an intensive way in the end of the 30 s and in the beginning of the 40 s. Many of the brazilians fields discovered in the past are nowadays in decline. They are called ―mature fields‖. These fields, because of the decline situation that characterizes them, are not interesting for the majors. The majors want the big fields and big productions. On the other hand, they could be interesting for the small and medium enterprises. The mature oil fields are instruments of development, they have oil and the oil production is an activity connected with many social and economics benefits: jobs, taxes, royalties, etc. The Brazilian State, in this context, needs to realize actions to promote the activities in the mature oil fields, especially with the work of the small and mediums enterprises. Many of the onshore brazilian mature fields are located at the Northeast, a region matched by many social and economic problems. The activities in the mature fields of the Northeast Region could solve some of its problems. The present research analyses the mature oil fields and its situations in Brazil, making criticisms and suggestions. The methodology adopted is theoretical and descriptive, with literature review, case law and legislation (Constitui??o Federal de 1988, ―Law of the Oil‖). This research examines the following points: mature fields rounds and its documents, name and definition of the mature fields, definition of small and medium enterprises, environmental aspects, concentration of certain activities of the sector and the royalties
As atividades do petr?leo no pa?s foram iniciadas de forma mais intensa no final dos anos 30 e in?cio dos anos quarenta. Muitos dos campos de petr?leo descobertos no passado hoje se encontram em decl?nio produtivo, s?o os chamados ―campos maduros de petr?leo‖. Estes campos, em decorr?ncia do decl?nio em sua produ??o, n?o se revelam interessantes ?s grandes empresas de petr?leo. Grandes empresas desejam grandes campos e grandes produ??es. Por outro lado, podem os campos maduros se revelar interessantes aos empreendedores de menor porte. Os campos maduros, ainda que em decl?nio, possuem petr?leo e o petr?leo ? recurso energ?tico demasiadamente relevante. A produ??o de petr?leo, mesmo em campos declinantes, ? atividade ligada a in?meros benef?cios sociais e econ?micos: gera empregos direitos e indiretos, promove o recolhimento de tributos, o pagamento de royalties, dentre outros. O Estado brasileiro, neste contexto, necessita realizar a??es que promovam a continua??o da produ??o em campos maduros, especialmente atrav?s do ingresso de empreendedores de menor porte. Muitos dos campos maduros onshore se encontram no Nordeste brasileiro, regi?o marcada por s?rios problemas econ?micos e sociais e por uma intensa desigualdade. As atividades de produ??o de petr?leo nos campos maduros nordestinos podem resolver alguns destes problemas, fato este que ressalta a import?ncia do fomento ? continua??o destas atividades nestes campos. A presente pesquisa, atentando para a relev?ncia do fomento ? continua??o das atividades desenvolvidas nos campos maduros de petr?leo, se debru?a sobre seu estudo e atual realidade, formulando cr?ticas e sugest?es, em especial no que diz respeito ? entrada de empreendedores de menor porte no setor. Para isto, utiliza a metodologia do tipo te?rico-descritiva, com an?lise bibliogr?fica, jurisprudencial e normativa. Neste ?ltimo caso, a Constitui??o Federal de 1988 e a ―Lei do Petr?leo‖ se destacam. S?o aqui especificamente analisadas as licita??es at? hoje efetuadas em torno de ?reas contendo campos maduros de petr?leo, seus editais e contratos de concess?o. A pesquisa em quest?o ainda se ocupa das seguintes tem?ticas: conceito e denomina??o dos campos de petr?leo com produ??o declinante, necessidade de formula??o de um conceito para a express?o ―empreendedores petrol?feros de menor porte‖, licenciamento ambiental no setor do petr?leo, passivos ambientais atinentes aos campos maduros, concentra??o de determinadas atividades do setor junto ? Petrobras e royalties e necessidade de sua cobran?a em percentual reduzido
9
Costa, Antonio Rufino da. "An?lise da efici?ncia de contratos de servi?os de elevada especificidade terceirizados pela petrobras." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12078.
Full textAbstract:
Made available in DSpace on 2014-12-17T13:51:36Z (GMT). No. of bitstreams: 1
Antonio RC_TESE.pdf: 2470658 bytes, checksum: a1b4f761594f9b5385c3115369d8a08a (MD5)
Previous issue date: 2013-07-05The definition of the boundaries of the firms is subject that has occupied the organizational theorists long ago, being the seminal work of Coase (1937) indicated as the trigger for one theoretical evolution, with emphasis on governance structures, which led to a modern theory of incomplete contracts. The Transaction Cost Economics (TCE) and Agency Theory arise within this evolution, being widely used in studies related to the theme. Empirically, data envelopment analysis (DEA) has established itself as a suitable tool for analysis of efficiency. Although TCE argues that specific assets must be internalized, recent studies outside the mainstream of theory show that, often, firms may decide, for various reasons, hire them on the market. Researches on transaction costs face with the unavailability of information and methodological difficulties in measuring their critical variables. There`s still the need for further methodological deepening. The theoretical framework includes classic works of TCE and Agency Theory, but also more recent works, outside the mainstream of TCE, which warn about the existence of strategies in use of specific assets that aren`t necessarily aligned with the classical ideas of TCE. The Brazilian oil industry is the focus of this thesis, that aimed to evaluate the efficiency of contracts involving high specificity service outsourced by Petrobras. In order to this, we made the categorization of outsourced services in terms of specificity, as well the description of services with higher specificity. Then, we verified the existence of relationship between the specificity of services and a number of variables, being found divergent results than those that are preached by the mainstream of TCE. Then, we designed a DEA model to analyze the efficiency in the use of onshore drilling rigs, identified among the services of highest specificity. The next step was the application of the model to evaluate the performance of drilling rigs contracts. Finally, we verified the existence of relationship between the efficiency of contracts and a number of variables, being found, again, results not consistent with the theory mainstream. Regarding to analyze of efficiency of drilling rigs contracts, the model developed is compatible with what is found in academic productions in efficiency of drilling rigs. The results on efficiency show a wide range of scores, with efficiencies ranging from 31.79% to 100%, being low the sample efficiency average. There is consonance between the model results and the practices adopted by Petrobras. The results strengthen the DEA as an important tool in studies of efficiency with possibility to use for analysis other types of contracts. In terms of theoretical findings, the results reinforce the arguments that there are situations in which the strategies of the organizations, in terms of use of assets and services of high specificity, do not necessarily follow what is recommended by the mainstream of TCE
A defini??o das fronteiras da firma ? tema que tem ocupado os te?ricos organizacionais h? bastante tempo, sendo o trabalho seminal de Coase (1937) apontado como desencadeador de uma evolu??o te?rica, com ?nfase nas estruturas de governan?a, que desemboca numa moderna teoria dos contratos incompletos. A Economia dos Custos de Transa??o (ECT) e a Teoria da Ag?ncia surgem dentro desta evolu??o, sendo bastante utilizadas em estudos associados ao tema. Empiricamente, a An?lise Envolt?ria de Dados (DEA) vem se firmando como ferramenta adequada para an?lises de efici?ncia. Embora a ECT argumente que ativos espec?ficos devam ser internalizados, estudos recentes fora do mainstream da teoria mostram que, muitas vezes, as firmas podem decidir, por motivos diversos, contrat?-los no mercado. As pesquisas sobre custos de transa??o deparam-se, com a indisponibilidade de informa??es e com dificuldades metodol?gicas para medi??o de suas vari?veis cr?ticas. Existe, ainda, a necessidade de aprofundamento metodol?gico. O referencial te?rico contempla trabalhos cl?ssicos da ECT e da Teoria da Ag?ncia, mas tamb?m trabalhos mais recentes, fora do mainstream da ECT, que alertam para a exist?ncia de estrat?gias no uso de ativos espec?ficos n?o necessariamente alinhadas com as ideias cl?ssicas da ECT. A ind?stria petrol?fera brasileira ? o foco da tese, que teve como objetivo avaliar a efici?ncia dos contratos de servi?os de elevada especificidade terceirizados pela Petrobras. Para tanto, foram feitas a categoriza??o dos servi?os terceirizados quanto ? especificidade e a descri??o dos servi?os de mais elevada especificidade. Na sequ?ncia, foi verificada a exist?ncia de rela??o entre a especificidade dos servi?os e uma s?rie de vari?veis, encontrando-se resultados divergentes do que prega o mainstream da ECT. Em seguida, foi elaborado um modelo DEA para an?lise de efici?ncia na utiliza??o de servi?os de sondas de perfura??o terrestres, identificado entre os de mais elevada especificidade. O passo seguinte foi a aplica??o do modelo para medi??o da efici?ncia dos contratos de sondas. Por fim, foi verificada a exist?ncia de rela??o entre a efici?ncia dos contratos e uma s?rie de vari?veis encontrando-se, mais uma vez, resultados n?o condizentes com o mainstream da teoria. No tocante ? an?lise de efici?ncia dos contratos de sonda, o modelo elaborado ? compat?vel com o que se encontra em produ??es acad?micas sobre efici?ncia de sondas. Os resultados quanto ? efici?ncia mostram um largo espectro de escores, com efici?ncias que variam de 31,79% a 100%, sendo baixa a efici?ncia m?dia da amostra. H? conson?ncia entre os resultados do modelo e as pr?ticas adotadas pela Petrobras. Os resultados refor?am a posi??o da DEA como ferramenta importante nos estudos de efici?ncia, com possibilidade de uso para an?lise de outros tipos de contratos. Em termos de achados te?ricos, os resultados refor?am os argumentos de que existem situa??es em que as estrat?gias das organiza??es, no que se referem ? utiliza??o de ativos e servi?os de elevada especificidade, n?o seguem necessariamente o que ? preconizado pelo mainstream da ECT
10
Oliveira, Ricardo Miguel de. "Craqueamento termocatal?tico de ?leo de girassol na presen?a da peneira molecular SAPO-5." Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17637.
Full textAbstract:
Made available in DSpace on 2014-12-17T15:41:53Z (GMT). No. of bitstreams: 1
RicardoMO_DISSERT.pdf: 2015893 bytes, checksum: dea62cb9390752fd7430293c73c9a1dd (MD5)
Previous issue date: 2011-12-06Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
The catalytic cracking of triglycerides presents itself as a possible alternative to the production of biofuels with low emission of pollutants. In this work were synthesized the SAPO-5, the catalysts for the cracking reaction of soybean oil is presented. The solids were powder X-ray diffraction (XRD), thermogravimetric analysis (TG/DTG) and infrared spectroscopy (FTIR). The analyses indicated that the synthesis method has employed to obtain materials with high surface area and high acid. The soybean oil thermal and thermal catalytic cracking, realized from the room temperature to 450 ?C in a simple distillation system, has allowed obtaining two liquid fractions, each consisting of two phases, one aqueous and another organic, organic liquid (OL). The OL obtained from first fractions has shown high acid index, even in the thermal catalytic process. The products obtained in the cracking of soybean oil were analyzed by distillation, acid number, infra-red spectroscopy, density, viscosity, carbon residue, cetane number determination and characterization. The analysis of the products obtained in the presence and in the absence of the SAPO-5 permitted to conclude that all the solids tested presented catalytic activity in the deoxygenation of final products only at the second step of the cracking process
O craqueamento catal?tico de triacilglicer?deos se apresenta como uma alternativa vi?vel para a produ??o de biocombust?veis com baixa emiss?o de poluentes. Neste trabalho foi sintetizado o SAPO-5, o catalisador foi utilizado na rea??o de craqueamento do ?leo de Girassol. O s?lido foi caracterizado por difra??o de raios -X, an?lise termogravim?trica, espectroscopia no infravermelho. As an?lises indicaram que atrav?s do m?todo de s?ntese empregado foram obtidos materiais com elevada ?rea espec?fica e alta acidez. A partir do craqueamento t?rmico e termocatal?tico do ?leo de girassol, realizado desde a temperatura ambiente at? 450 oC em um sistema de destila??o simples, foram obtidas duas fra??es l?quidas, cada uma contendo duas fases, uma aquosa e outra org?nica. A primeira fra??o do l?quido org?nico obtido apresentou alto ?ndice de acidez, no processo de craqueamento t?rmico. Os produtos obtidos no craqueamento de ?leo de Girassol foram analisados por destila??o, ?ndice de acidez, espectroscopia no infravermelho, densidade, viscosidade e determina??o do ?ndice de cetano. A an?lise dos produtos obtidos na presen?a e na aus?ncia do SAPO-5, sintetizados permitiu concluir que todos os s?lidos testados apresentaram atividade catal?tica para a desoxigena??o dos produtos finais apenas na segunda etapa do processo de craqueamento
Books on the topic "Liseed Oil"
1
Jens, Holst, Brandrup-Lukanow Assia, International Labour Organisation, Deutsche Gesellschaft für Technische Zusammenarbeit, and World Health Organization, eds. Extending social protection in health: Developing countries' experiences, lessons learnt, and recommendations. Eschborn, Germany: GTZ, 2007.
Find full text
2
Rose, Jeanne. Guide to Essential Oils: Over Two Hundred Twenty-Five Eo Listed. Herbal Studies Course, 1994.
Find full textBook chapters on the topic "Liseed Oil"
1
Fontanel, Didier. "Structures of Chemical Constituents Listed, Ordered by Family." In Unsaponifiable Matter in Plant Seed Oils, 319–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35710-7_9.
Full text
2
Dembo, Abubakar M. "The Impact of Sustainability Practices on the Financial Performance: Evidence from Listed Oil and Gas Companies in Nigeria." In Dimensional Corporate Governance, 215–33. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56182-0_14.
Full text
3
N., Deepika, Nirupama Bhat Mundukur, and Victer Paul. "Study on Indian Stock Market Performance Based on Commodities." In Advances in Marketing, Customer Relationship Management, and E-Services, 415–31. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-5077-9.ch020.
Full textAbstract:
A stock exchange facilitates trading shares of pubicly listed companies. The trading process is operated through two non-separable and mutually supporting segments called as primary and secondary markets, governed by the Security and Exchange Board of India abbreviated as SEBI. The platform which forms and sale the new securities is known as primary market and the platform in which dealings of these previously issued securities is known as secondary market. Stock market or equity market is the area that facilitates the trading of the publicly listed security shares in the secondary market, and as of now, more than 1300 securities are available in the exchange for trading. The trading process is analyzed using trading ring in earlier days. The authors focus on analyzing the effect of dollar sell, dollar purchase, and commodities price under the oil and gas group crude oil on Indian stock indices.
4
Viktor, Kreuschitz, and Nehl Hanns Peter. "Part VI Global Approach of State Aid Law—WTO Law and EU Trade Defence Instruments, 1 WTO Subsidy Laws: The International Regulation of State Aid." In State Aid Law of the European Union. Oxford University Press, 2016. http://dx.doi.org/10.1093/law-ocl/9780198727460.003.0024.
Full textAbstract:
This chapter focuses on the concepts of subsidy control under World Trade Organization (WTO), prohibiting certain types of subsidies that might have a harmful effect on economic activity in other WTO members. A major innovation of the Agreement on Subsidies and Countervailing Measures (SCM Agreement) was the classification of subsidies into three categories, often referred to as ‘red light’, ‘yellow light’, and ‘green light’. ‘Red light’ subsidies are prohibited per se, with no need to actually prove any adverse effect. The ‘yellow light’ or ‘actionable subsidies’ are not prohibited, but may be challenged only if they cause ‘adverse effects’. Under the ‘green light’ category, certain selected types of subsidies were non-actionable even if they were specific and caused one of the harms listed in Articles 5 and 6 of the SCM Agreement.
5
Frank, Wijckmans, and Tuytschaever Filip. "Part II Vertical Agreements Under Regulation 330/2010, 7 Article 5: Excluded Restrictions." In Vertical Agreements in EU Competition Law. Oxford University Press, 2018. http://dx.doi.org/10.1093/law-ocl/9780198791027.003.0007.
Full textAbstract:
This chapter addresses the co-called excluded restrictions which are listed in Article 5 of Regulation 330/2010. The twelfth step of the road map of Chapter 2 is to check whether a given vertical agreement contains restrictions which are excluded from the scope of application of Regulation 330/2010. The excluded restrictions cover three categories of non-compete obligations, respectively applying: (i) during the term of the vertical agreement; (ii) after its termination; and (iii) in a system of selective distribution.The inclusion of an excluded restriction does not render the block exemption inapplicable to the vertical agreement as a whole. The block exemption will only not apply to the excluded restriction itself. The other restrictions of competition continue to benefit from the block exemption, to the extent that they are covered by it.
6
Alaeddine-Lejalle, Catherine, Mélika Amor-Sahli, Axelle Bailhache, Jean-Michel Bartoli, Farida Benoudiba, Raphaël Blanc, Michel Bléry, et al. "Liste des collaborateurs." In Imagerie en ORL, v—vi. Elsevier, 2010. http://dx.doi.org/10.1016/b978-2-294-70498-7.50028-3.
Full text
7
"Liste des abréviations." In ORL Chez L'enfant, xix—xxi. Elsevier, 2017. http://dx.doi.org/10.1016/b978-2-294-74471-6.09994-9.
Full text
8
Fayoux, Pierre, Vincent Couloigner, Alessandro Amaddeo, Sonia Ayari-Khalfallah, Céline Bernardeschi, Marion Blanchard, Catherine Blanchet, et al. "Liste des collaborateurs." In ORL Chez L'enfant, v—viii. Elsevier, 2017. http://dx.doi.org/10.1016/b978-2-294-74471-6.09993-7.
Full text
9
Allosso, Dan. "The Dark Side of Family Business." In Peppermint Kings, 134–59. Yale University Press, 2020. http://dx.doi.org/10.12987/yale/9780300236828.003.0007.
Full textAbstract:
This chapter mentions Hiram Hotchkiss's death on October 27, 1897 and points out how the account of his life was printed across eight columns. It also talks about Hiram's obituary that recounts the inaccurate story of how Hiram had singlehandedly invented the peppermint oil business and listed all the awards he had won for his peppermint oil. The chapter contradicts the obituary's' portrayal of Hiram as a benevolent and self-made entrepreneur. It emphasizes how Hiram was actually a monomaniacal autocrat who blustered and bullied his way toward a success that, despite his claims, he never really achieved. It also highlights the story of Hiram's business conduct that illustrates the extent to which he believed that the rules of society did not apply to him.
10
Dickinson, A. B. "Introduction." In Seal Fisheries of the Falkland Islands and Dependencies, 1–24. Liverpool University Press, 2007. http://dx.doi.org/10.5949/liverpool/9780973893441.003.0001.
Full textAbstract:
This chapter introduces the structure and aim of the volume. It begins with an overview of the history and topography of the Falkland Islands and Dependencies, then discusses the sources of revenue on the islands, and confirming that sealing no longer occurs within the jurisdiction. It then introduces the development of commercial sealing: fishing locations; seal products - primarily meat, skin, fur, and oil; costs and profits; and the conditions aboard sealing vessels. It also provides a detailed description of different seal breeds - listing individually their habitats, features, region, uses, and profitability. The species of Falklands seals detailed are the Fur Seal; Bull and Cow Elephant Seal; Elephant Seal; Sea Lion; Leopard Seal; Weddell Seal; and Crabeater Seal. It concludes that all of the species of seals listed now enjoy protection in the Falklands, before lamenting that contemporary data concerning population figures is imprecise.
Conference papers on the topic "Liseed Oil"
1
Poryazov, V. A., O. G. Glotov, V. A. Arkhipov, G. S. Surodin, and Y. A. Dubkova. "EFFECT OF METALLIC FUEL NATURE ON COMBUSTION CHARACTERISTICS OF AMMONIUM PERCHLORATE / BINDER / METAL COMPOSITE SOLID PROPELLANTS." In 9TH INTERNATIONAL SYMPOSIUM ON NONEQUILIBRIUM PROCESSES, PLASMA, COMBUSTION, AND ATMOSPHERIC PHENOMENA. TORUS PRESS, 2020. http://dx.doi.org/10.30826/nepcap9a-30.
Full textAbstract:
The goal of this research is to obtain experimental information about combustion characteristics of the composite propellant containing various metallic fuels. The propellant formulations contained two fractions of ammonium perchlorate (64.6%), inert binder (19.7%) - butadiene rubber SKD plastized with transformer oil, and metal fuel (15.7% of aluminum ASD-4, ASD-6, Alex; boron; aluminum diboride; aluminum dodecaboride; some mixtures of above listed ingredients). Experimental information will be used further as a background to develop the physical and mathematical model of combustion process.
2
Zhu, Lei, Segen F. Estefen, Nilo de Moura Jorge, John H. Chujutalli, and Marcelo Igor Lourenço Souza. "Numerical Simulation of Shear Ram Performance." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78100.
Full textAbstract:
A subsea Blowout Preventer system plays an extremely important role in providing safe working conditions for drilling activities in deepwater oil exploration. However, estimating the performance of Shear Ram Blowout Preventeris still a challenge for the industry. This paper considers different scenarios that may influence the shear capability of a typical subsea Blind Shearing Ram: the pipe size, ram shape, preload of pipe, off-center distance and tool joint of pipe. Element method analysis is conduct on the Abaqus software to calculate the maximum required shearing force for each scenario. Results of those simulations are collected and analyzed according to mechanic theories and oil field experience. Furthermore, some recommendations are offered both in theoretical and practical aspects to build the criterion for the shear ability of a specific type of Blind Shearing Ram. Factors influencing shearing capabilities have been listed according to the result of the numerical simulation.
3
Qu, Yu, Xiangmin Hao, Anhe Jiang, and Mingchao Gao. "Guidance of Equipment Risk Management With RBI Techniques." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25398.
Full textAbstract:
The West Pacific Petrochemical Company Limited, Dalian is the first enterprise that adopts risk-based inspection (RBI) technology in the oil refinery plants in China, the application of RBI technology plays a positive role in guaranteeing long-cycle operation of the plant. With the continuous deepening of degree of understanding of API 581 standard and continuous enriching of experience with use of RBI software, by tracing the risks, there are three major factors that affect the risk of equipment or component, i.e. risk consequence, failure likelihood and management system, which are taken as the direction of efforts for guiding the implementation of equipment risk management measures. If there are litigation measures in the release consequence (sprinkler system or passive litigation technology) that can reduce continuous release rate and release time, then the release consequence of equipment can be reduced; if inspection techniques are adopted with respect to corrosion failure mechanisms or the proportion of inspection is increased in the failure likelihood, then the failure likelihood can be reduced effectively; and other measures such as analyzing the problems listed in each item of management system assessment and taking measures to improve management level and thus increase scores of management system by comparing the difference between the management of the enterprise itself and those listed in the standard. By implementing above measures, the ability of equipment risk management is improved and thus the intrinsic safety of equipment management is effectively guaranteed.
4
Li, Yunjie, Juan Zheng, Dongjie Tan, Yanshuang Liu, and Pengchao Chen. "Development of Industry Standard for Pipeline Security Pre-Warning Technology." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90075.
Full textAbstract:
This article describes the development of industry standard for pipeline security pre-warning (PSP) technology which is an achievement of China National Petroleum Corporation’s Eleventh Five-Year science and technology project. By comprehensive application of signal acquisition and identification technologies, the PSP system monitors the pipeline for real time and promptly warns and locates the damages caused by illegal excavation, drilling hole for oil-stealing, pipeline erosion and natural disaster. This technology applied and operated well on some long distance transport pipelines in China and was listed on the Recommendation Projects for Safe and Security by the State Administration of Work Safety in 2009. To speed up the industrial application and promotion of the PSP technology, the Oil & Gas Storage and Transportation Standardization Committee (OGSTSC) of the Petroleum Industry organized the development of the standard from which transferred the research and development results. The standardization process has taken two years and gone through five major steps: first, determining the standard range; second, researching relative standards, laws and regulations; third, carrying out field tests; fourth, drafting the specifications, finally, revision and finalizing the standard. The development of PSP standard is a typical example for OGSTSC of transferring knowledge from R&D to industrial standard and finally to end users. The PSP standard development process was finished in 2010 and the industry standard SY/T 6827 Specification for Security & pre-warning System of Oil & gas Pipeline was published in the July of 2011.
5
Berti, Simone, Pietro Fracassi, Alessandra Mattioli, Varuna Reddy Potula, and Cristiano Lotti. "Design and Development of a Specially Modified Positive Displacement Rotary Screw Pump and Relevant Hydraulic Circuit to Enhance “Entrained Air Handling” Capability in a Closed Loop Lube Oil System." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94145.
Full textAbstract:
Rotary screw type positive displacement (RSPD) pumps are commonly used in Oil and Gas Industry for pumping of mineral lube oil in services where they can be mechanically driven by gears coupled to a train driver. Installation of these pumps is critical and should be designed jointly by vendors and users according to project specific restrictions (i.e. the arrangement of the entire oil circulation system). This paper describes a real case in which restrictions due to lube oil system arrangement have produced low pump suction head and have amplified the influence of air bubbles that remained entrained in oil despite lube oil tank degassing. The investigations have been directed toward the mathematical modeling of the aeration phenomenon coupled with experimental measurements of critical parameters taken on the shop plant. Among corrective actions identified and considered there are reduction of quantity of air entering the lube oil system and revamping of the entire lube oil system with changes in piping, tank and also in pump model together with special modifications of internal path to enhance air handling capabilities. In order to validate pump behavior with reference to resistance to aeration (monitoring noise and vibration) a special simulation set-up was jointly developed by end user and manufacturer on a pilot test bench to carry out the various performance tests. The numerical data collected during shop aeration test have confirmed that the pump was able to handle the expected amount of entrained air with noise and vibrations within industrial limits. The pumps tested in the pilot bench were installed at user’s site and the effectiveness of the synergic corrective actions listed above was successfully verified. The study concludes that an early estimation of entrained air in the lube oil system is critical for design and development of either the RSPD pump or the entire lube oil circuit of a motor compressor train. When a critical quantity of entrained air is likely to be reached at pump suction (near 10% in volume), pump manufacturers and end users should apply some basic rules related to “design for aeration” of the pump and agree on a non-routine test to be performed at manufacturer’s shop before pump installation at site. This will serve as a reliable prediction of pump air handling capabilities, without which effective operation, reliability and durability of the pump could be jeopardized.
6
Maharaj, Priya S., Shyam Dyal, and Kelvin Ramnath. "Health, Safety and Environmental Management Systems Auditing for an Integrated Oil and Gas Company in Trinidad and Tobago." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/ee-29144.
Full textAbstract:
The Petroleum Company of Trinidad and Tobago Limited (Petrotrin) has developed and implemented a Health, Safety and Environmental (HSE) Management Audit System of its Exploration and Production, and Refining and Marketing Strategic Business Units. The main objective of this internal company audit was to determine the missing ‘gaps’ or elements from the current HSE Management System and to recommend alternate HSE Management System elements to create a more efficient Management System. The audit checklists and results effectively listed the observations, problems, and compliance issues, as well as corrective actions for improvement in accordance with the ISO 14001 and HSE Guidelines of the Exploration and Production Forum and 29CFR 1910.119 - Process Safety Management of Highly Hazardous Chemicals, Standards as well as the Company HSE key strategic directions including: • 100% compliance with local Environmental and Safety Regulations; • Targets of zero accidents and oil spills; and • Certification HSE Management Systems, for all Company operations. Senior personnel or drivers of the management systems within the Company were interviewed using this structured approach. The results from this company wide internal audit revealed that generally the overall HSE Management Strategies have been developed, but are not fully implemented, although they are formalized in the Environmental and Occupational Health and Safety Policies of the Company. HSE is undoubtedly regarded as a priority issue within Petrotrin’s operations, however there is the need to improve the documentation of formalized HSE Management System Procedures, thereby improving the enforcement and maintenance of the management system.
7
Paruolo, Nathalia, Thalita Mello, and Leonardo Brandão. "Floating Hose Behavior During Different Scenarios of an Offloading Operation." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-19225.
Full textAbstract:
Abstract Considering the deep water oil exploitation in remote fields far away from the coast, the use of shuttle tankers connected to FPSOs (Floating, Production, Storage and Offloading) for offloading and oil transporting shows to be a preferred alternative compared to constructing oil pipelines considering technic and economic matters, even if offshore offloading operation is still considered one of the riskiest operations in the offshore environment. From the concerns about hazards of an offloading operation, one is related to hose failure during oil transferring and the consequences on the environment. Different aspects of FPSO and shuttle tanker influence floating hose behavior during offloading operation as environmental condition, ships loading conditions, ships distance, heading, FPSO offloading station position and number of hose sections. The different aspects may be combined in several scenarios, in which integrity of floating hoses in terms of tension and bending strength shall be guaranteed. In the present paper, global numerical analyses of offloading operation considering a spread moored FPSO and a typical dynamic positioning shuttle tanker (DPST) moored in tandem are carried out. The analyses are based on a coupled numerical model of FPSO, DPST and floating hose [2]. Covering a wide combination of the scenarios considering the aspects listed above, full time domain simulation is used to estimate hose sections force and moments during the operation. Numerical model results are validated for a couple of scenarios against field data. With focus on floating hose integrity, the main objective is to define minimum requirements for a safe offloading operation, as environmental criteria, maximum and minimum distances between FPSO and DPST, limit operating sectors and minimum number of hose sections. The results can be used as reference to offloading procedures and manuals of owners and operators in combination with recommendations of international organizations.
8
Gareau, Frank, and Alex Tatarov. "The Integrity of Flexible Steel Line Pipe: A Case History." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64537.
Full textAbstract:
The oil and gas industry would continue to benefit from the successful application of innovative pipeline technologies. A comparison of the installed lengths of line pipe licensed by the Alberta Energy Regulatory (AER) in 2005 and 2012 indicates that composite pipeline systems have increased by 577%; a much higher increase than other types of licensed line pipe materials. The primary driver is to address corrosion that accounts for 68% of the AER-listed pipeline failures. Effective use of new flexible steel line pipe requires application within theoretically acceptable boundaries. A case history will be discussed to highlight some of the boundary conditions for flexible steel composite line pipe. Challenges to successfully use new innovative materials include industry’s ability to characterize the composition of the fluids transported by the pipeline, to characterize the composition of the fluids that permeate through the non-metallic components in some of the composite systems, and to construct systems without damage.
9
Fu, Xingguo, Xiaohong Xu, and Xuguang Zhou. "The New Lubrication Technology and China’s Sustained Development." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63123.
Full textAbstract:
The application of new lubrication technology has a close relationship with the industrial development of automobile, machinery and transportation. Energy saving and environment protection are main two factors to push lubricants upgrades. Lubricant quality and correct application directly influence the use-life of machine, consumption of energy and environment protection. All over the world, especially in Western developed countries people pay more attention to the research and application of new lubricant technology. The lubricant specifications were reviewed and upgraded continuously according to the requirements of machine, fuel economy and emission. China’s sustained development means the ability to satisfy current human’s requirement as well as not to destroy nature resources for next generation. That also means we must balance the fast development of economy, society, resources and environment, we must protect natural resources and environment such as water, ocean, lands and forest which we live on, which can keep our next generation developing. Research and application of new lubricant technology is basic issues to keep China’s economy continuously growing. China’s petroleum consumption increased rapidly during the recent decades. There are two rapid period within 25 years after China’s application of opening and reform policy. The first is from 1978 to 1990, the whole petroleum consumption increased from 913 million to 1.18 billion tons respectively, increasing rate is 2.0% per year. The second was from 1991 to 2003, petroleum consumption increased from 1.18 billion to 2.74 billion tons, increasing rate was up to 6.7% per year. If we compare 2003 with 2001, the net petroleum consumption amount had increased 42million tons, increase rate is 8.7% per year. China now becomes one of biggest petroleum consumption country. The efficiency of China’s petroleum consumption is low. According to world petroleum consumption level (ton per thousand U.S. Dollar, GDP), China consumes four times more petroleum than that of Japan, three times of that of European, two times of that of USA. The wide application of low-grade lubricating oil and the lack of new lubrication technology are the main cause of the low-efficient petroleum usage. In the future decades petroleum shortages will be more and more strict in China, and it will have an important role in the delay of economic development and national safety. It is our lubricants workers duty to develop and apply the new lubrication technology to enhance the use efficiency of petroleum, to prevent our reliable environment and to push the China’s sustainable development. The world total consumption quantity of lubricating oil keeps about 37 to 39 million tons per year. It shares about 1% of total crude refining amount. The lube consumption amount in North American keeps stable about 9.5 million tons which listed No.1 while European and previous Unit Soviet area decreased. Asia is the only increased area, mainly because of the fast economic growth in China and India. China has consumed 4.4million tons lubricating oil in 2003, take about 1.6% of total crude refining amount, shares about 11% of whole world consumption amount, values about 22 billion RMB [1]. The increased rate reaches the highest—10.56% compared to 2002. This was the first time China become the second lubricant consumer in the world, just after USA. In 2004, China’s lubricants consumption will reach over 5 million tons, reaches the top in history, the increased rate will reach 10% comparing with 2003. China’s Automobile industry develops rapidly in the recent years, at the same time fuel efficiency keeps a low level. In 2002 China’s automobile has consumed 2.28 ton fuel per automobile which is 110–120 percent of USA, 200 percent of Japan. There exists a wide market for the application of new lubrication technology. The application of those additives and lube oils such as environment-friend additives, friction modified agents, nano-lube additives, energy-conserving multi-grade lube oils can enhance lubrication efficiency of equipments, decrease fuel consumption and conserve the petroleum resources. In this paper the applications of Cu nano-lube additive are introduced. and 0.1% Cu nano-lube is added into passenger car motor oil 5W30 SJ. The four-ball test equipment, cam-tappet test equipment and MS VI engine test are used to evaluate the performance, the test results shows the application of Cu nano-additive can obviously decrease the friction coefficient and fuel consumption. China should establish its national lube oil evaluation system, this system can greatly push the warranty of the quality of lube oil. The standard and national principle for fuel-conserving should be acted to improve the application of multi-grade lube oil and energy-conserving lube oil and new technology.
10
Belet, Nuran. "European Energy Association (EEA) and Turkey's Regional “Energy Hub” Possibility: Opportunities and Challenges." In International Conference on Eurasian Economies. Eurasian Economists Association, 2016. http://dx.doi.org/10.36880/c07.01763.
Full textAbstract:
European Union Commission declared its vision on European Energy Association EEA including comprehensive changes on energy strategy about energy cooperation and climate changes, as well as conversion and its multi-dimensional cooperation objectives with its report European Commission, Energy Union Package, COM 2015-80. Current cost of energy to the European Union damages its competitiveness in the international market due to its high dependence on energy supply. EU will play an active role in the international energy market with EEA on both energy dependence and on energy supply security. Only four countries are listed on the EEA vision document among alternative producers, cooperation with transit countries and strategic partners: Algeria, Azerbaijan, Turkmenistan and Turkey. Due to its geo-strategic location Turkey is the most affordable and reliable energy transit route between Central Asia and Europe. In this study Turkey’s place as a strategic transit country and its partnership in TAP/TANAP projects as well as its possibility to become a regional energy hub and an oil corridor in the East-West route will be discussed in detail as it is stated in EEA vision document. In this context, possibilities, challenges and related macro-economic policies will be evaluated.
Reports on the topic "Liseed Oil"
1
Safe commodity assessments for OIE listed aquatic animal diseases. O.I.E (World Organisation for Animal Health), April 2016. http://dx.doi.org/10.20506/trade.2016.2510.
Full text