Thematische Bibliographien / Listed property trusts

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Konferenzberichte

Auswahl der wissenschaftlichen Literatur zum Thema „Listed property trusts“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 20. Februar 2023

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Zeitschriftenartikel zum Thema "Listed property trusts"

Newell, Graeme, Ting Hwa und Peter Acheampong. „Listed Property Trusts in Malaysia“. Journal of Real Estate Literature 10, Nr. 1 (01.01.2002): 109–18. http://dx.doi.org/10.1080/10835547.2002.12090104.

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Lin Lee, Chyi, Richard Reed und Jon Robinson. „Momentum Profits in Australian Listed Property Trusts“. Pacific Rim Property Research Journal 13, Nr. 3 (Januar 2007): 322–43. http://dx.doi.org/10.1080/14445921.2007.11104236.

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Lin Lee, Chyi, Jon Robinson und Richard Reed. „Listed property trusts and downside systematic risk sensitivity“. Journal of Property Investment & Finance 26, Nr. 4 (11.07.2008): 304–28. http://dx.doi.org/10.1108/14635780810886627.

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Newell, Graeme. „Factors Influencing the Performance of Listed Property Trusts“. Pacific Rim Property Research Journal 11, Nr. 2 (Januar 2005): 211–27. http://dx.doi.org/10.1080/14445921.2005.11104183.

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Newell, Graeme, und Ian MacIntosh. „Currency Risk Management Practices by Australian Listed Property Trusts“. Pacific Rim Property Research Journal 13, Nr. 2 (Januar 2007): 213–33. http://dx.doi.org/10.1080/14445921.2007.11104231.

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Liao, Xuemei, Zhi Dong und James Young. „Earnings Management: A Case of New Zealand Listed Property Trusts“. Pacific Rim Property Research Journal 17, Nr. 1 (Januar 2011): 92–109. http://dx.doi.org/10.1080/14445921.2011.11104319.

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Newell, Graeme. „The strategic significance of environmental sustainability by Australian‐listed property trusts“. Journal of Property Investment & Finance 26, Nr. 6 (26.09.2008): 522–40. http://dx.doi.org/10.1108/14635780810908370.

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Peng, Vincent. „Selectivity, Timing and the Performance of Listed Property Trusts: Implications for Investment Strategies“. Pacific Rim Property Research Journal 10, Nr. 2 (Januar 2004): 235–55. http://dx.doi.org/10.1080/14445921.2004.11104162.

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Bolomope, Muhammed, Abdul-Rasheed Amidu, Deborah Levy und Olga Filippova. „ORGANIZATIONAL ISOMORPHISM AND PROPERTY INVESTMENT DECISION-MAKING AMIDST DISRUPTIONS: EVIDENCE FROM LISTED PROPERTY TRUSTS IN NEW ZEALAND“. International Journal of Strategic Property Management 26, Nr. 3 (08.08.2022): 230–40. http://dx.doi.org/10.3846/ijspm.2022.16947.

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This paper explores the extent of organizational isomorphism (homogeneity and resemblances) in the disruption-driven investment decision-making strategies of Listed Property Trusts (LPTs) in New Zealand. Based on the tenets of institutional theory, this article conceptualizes LPTs as organizations within an investment environment, comprising several firms and actors that are bounded by formal and informal rules. By exploring the interactions and interdependencies across organizational hierarchies in the investment environment, this study adopts a phenomenological approach within case studies in clarifying the extent of homogeneity in the decision-making strategies of LPTs amidst disruptions. The research outcome suggests that LPTs demonstrate normative, coercive and mimetic isomorphic tendencies as they seek legitimacy amidst the uncertainties associated with property market disruptions. Apart from adhering to the peculiar rules and norms of property investment decision-making within their investment environment, this study reveals the tendency of LPTs to observe and replicate the responsive actions of similar organizations as they adjust to market uncertainties. Therefore, the research outcome provides a clearer description of the actual decision-making behaviour of LPTs amidst market disruptions and how subjective behavioural tendencies could evolve to become a legitimate standard of reasoning amongst LPTs.

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Hedander, Johan. „Focus, Liquidity and Firm Value: An Empirical Study of Listed Property Trusts in Australia“. Pacific Rim Property Research Journal 11, Nr. 1 (Januar 2005): 84–111. http://dx.doi.org/10.1080/14445921.2005.11104177.

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Dissertationen zum Thema "Listed property trusts"

Tan, Yen Keng, University of Western Sydney, College of Law and Business und of Construction Property and Planning School. „Strategic investment issues for listed property trusts“. THESIS_CLAB_CPP_Tan_Y.xml, 2004. http://handle.uws.edu.au:8081/1959.7/623.

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In the context of Listed Property Trusts (LPTs), three strategic investment issues have received considerable prominence in recent years. This thesis focuses on both the quantitative and qualitative aspects of these three strategic investment issues. 1/ the role of international property in LPTs 2/ the effect of stapled-securities management structure 3/ the performance of property securities funds. The three investment issues are assessed in some detail. The findings of the research suggest that the addition of international LPTs in the Australian LPT portfolio has resulted in significant diversification gains. The findings of the mixed-asset portfolio analysis suggest adding international LPTs to the Australian mixed-asset portfolio.Portfolio performance improved considerably. Mixed-asset portfolio performance is further enhanced when direct property is included. It is evident from the study that the property research discussed has led to the development of new LPT methodologies and a fuller understanding of the investment dynamics of the LPT sector in Australia.
Doctor of Philosophy (PhD)

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Tan, Yen Keng. „Strategic investment issues for listed property trusts“. Thesis, View thesis, 2004. http://handle.uws.edu.au:8081/1959.7/623.

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Tan, Yen Keng. „Strategic investment issues for listed property trusts /“. View thesis, 2004. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20050223.131622/index.html.

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Kishore, Rohit, University of Western Sydney, College of Law and Business und of Construction Property and Planning School. „The Impact of size and value effects on listed property trust performance“. THESIS_CLAB_CPP_Kishore_R.xml, 2004. http://handle.uws.edu.au:8081/1959.7/468.

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The purpose of this dissertation is to determine whether size and book value to market value (BV/MV) effects dominate the property effects in the return generating process for Listed Property Trusts (LPTs) in Australia.The study endeavours to answer a critical question regarding listed property investment vehicles. That is, are they stocks or property? The approach, however, differs from previous studies in that it avoids utilising direct property data because of the inherent valuation-smoothing problems.Instead, it develops unique specialised indices for LPTs by size and BV/MV ratios. The analyses are conducted in four different ways. Amongst other findings, it is suggested that the two well known stock market effects, namely size and BV/MV effects, are significant in LPT returns. As such, by way of inference, it is suggested that property effects in LPT returns are subsumed under the effects of these two factors. The findings support the hybrid-asset hypothesis for LPTs; that is, LPTs are an asset class of its own, sharing to an extent, the characteristics of both shares and property direct.
Doctor of Philosophy (PhD)

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Sebehela, Tumellano. „An investigation into the impact of listed property (property unit trusts) in a diversified investment portfolio in South Africa“. Thesis, 2009. http://hdl.handle.net/10539/5960.

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Investors seek to maximize the overall returns of diversified investment portfolios. That is, ideally investors would like to receive increasing risk-adjusted returns over a given period. In order to achieve this they allocate different percentages in different asset classes to form diversified investment portfolios. One of the asset classes that is considered for asset allocation is property. When allocating the property component, an investor has a choice of investing in either direct-held properties or listed properties. This research report focuses on listed properties, and property unit trusts (PUTs) will be the main focus not property loan stocks (PLSs). The literature (national and international) consensus is that listed property can be equity security, fixed-income security or hybrid security in a diversified investment. However, the dominant school of thought is that listed property funds has similar characteristics supported by empirical studies by Myer and Terris (1995), and Friday and Higgins (2000) and the less dominant school of thought is that listed property has gilts characteristics supported by empirical study by Kuhle (1987). Most of those empirical studies were undertaken in United States of America. At the moment, in South Africa (SA), there hardly any empirical studies comparing listed property funds and other asset classes expect a few real estate analyses by real estate analysts such as Leon Allison from First South Securities (South Africa) which show high positive relationship between listed property funds and bonds. Directly held property is a complex asset due to its physical structure, types of property, and natural forces and factors that affect land. Proper and efficient maintenance contribute to the value appreciation of property. When you diversify through usage of directly held property, it is better to have a limited the number of properties included in a diversified investment portfolio in ii order for them (physical property) to be manageable. The more physical properties you have in an investment portfolio, the more people needed to manage those physical properties. More importantly, physically help property has direct impact on the listed property fund. Tax changes can either persuade or dissuade people to invest in property market. In attempting to establish whether or not PUTs increase the overall returns of diversified investment portfolio conclusions were drawn from literature survey, research findings and hypothesis testing. There was no conclusive evidence suggesting whether PUTs enhances overall absolute returns; however, listed property funds reduce risk of the diversified investment portfolios. In certain case, as shown by Kuhle (1987), the more assets investors include their investment portfolios, the more risk reduction is prevalent in diversified investment portfolios. Other studies such as Friedman (1971) showed the inclusion of listed property trusts in a diversified investment portfolio minimizes maximum losses and earns reasonable returns. Therefore, listed property is a hybrid security and diversification does not necessarily increase after risk-adjusted returns but does reduce risk. From available data, the hypothesis test confirmed that introduction of PUTs in a diversified investment portfolio does not necessarily increases returns. The research report further confirmed that listed property funds have both characteristics of equities and fixed-income securities. Going forward, having a diversified investment portfolio is an advisable strategy especially in case of unforeseen market conditions. Diversified investment portfolios works more like defensive stocks because investors make minimum losses while making reasonable returns during unforeseen circumstances. Historically the property market has outperformed other markets. Finally, diversification seems not to increase the overall returns of diversified investment despite decreasing the risk of diversified investment portfolio.

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Mohamed, Razali Muhammad N. „The significance and performance of Malaysian listed property companies in Pan-Asian property portfolios“. Thesis, 2015. http://handle.uws.edu.au:8081/1959.7/uws:31337.

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The performance and significance of property securities in Malaysia has not been analysed due to a lack of awareness and expertise in Malaysia, particularly on property investment from the academic point of view. In order to determine whether property has performed well, it requires measuring performance so that investment management related decisions can be determined on a regular basis. Thus, it also is important to analyse the portfolio diversification benefits of the Malaysian listed property securities market. To strengthen the output of this research, the comparison with other pan-Asian countries will be assessed to determine the international contribution of the Malaysian listed property securities market in pan-Asian portfolios. Furthermore, some advanced statistical modelling will be conducted to give a better perspective of the performance of the Malaysian listed property securities market from the empirical analysis point of view. The objectives of this thesis are as follows: i. To assess the significance of the Malaysian listed property securities market. ii. To analyse the performance of the Malaysian listed property securities market as well as the contribution to diversification benefits by Malaysian listed property in mixed-asset portfolios. iii. To compare the performance of the Malaysian listed property securities market with other markets in Asia. iv. To assess the role of the Malaysian listed property securities market in a pan- Asian property portfolio context. v. To assess the impact of the Global Financial Crisis on property securities investment in Malaysia and Asia. This thesis will analyse the performance of property securities markets, for listed property companies in Malaysia, from 1998 to 2012. Risk-adjusted performance analysis will be used to assess the added value of Malaysian listed property companies in pan-Asian portfolios. Portfolio diversification benefits of Malaysian listed property companies will also be assessed. For the various indirect properties and associated financial series for Malaysia, risk-adjusted returns will be assessed from 1998 to 2012. This period has been chosen because of the two financial crises which occurred during this period. It is interesting to study the impact of these financial crises (the AFC and the Global financial crisis) to Malaysian listed property companies, as well as other pan-Asian countries. Performance analysis will use local currencies, as international investors typically implement their own currency hedging strategies to control currency risk. Regional and mixed-asset portfolio diversification benefits will be assessed using correlation analysis.

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Kishore, Rohit. „The Impact of size and value effects on listed property trust performance“. Thesis, 2004. http://handle.uws.edu.au:8081/1959.7/468.

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Potelwa, Ziyanda. „A comparative analysis of the performance of the property funds listed on the Johannesburg Stock Exchange“. Thesis, 2013. http://hdl.handle.net/10539/13106.

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Listed property entities on the Johannesburg Stock Exchange fall under the category of ‘Financials - Real Estate’. There are four types of property entities that a prospective investor can consider namely: Property Unit Trusts, Property Loan Stock Companies, Real Estate Holding and Development Companies and Real Estate Investment Trusts. The listed property sector allows investors to enter the property investment market in a uniquely affordable and secure way without the added risk, expense and administration that comes with direct property investment. This study evaluates the investment performance of the various property fund types through the implementation of Jensen’s alpha, the Sharpe ratio and Treynor ratio in an effort to establish whether there is a significant difference in the returns that can be obtained from the diverse funds given the associated risks. An analysis of the total returns and standard deviation of the property industry shows that the real estate market is affected by changes that take place in the macro economy. It is also investigated whether there is a differential risk associated with investing in these funds. We find that there is no significant difference between the performances of the various funds and there is no differential level of risk associated with investing in the property funds. An analysis of the fluctuation of total returns and standard deviation of the property funds over the eleven year period shows that the property sector is affected by changes in economic conditions however the changes are not enough to cause colossal volatility. For instance, the global recession of 2008 had an impact on the property industry returns but the sector has since made a steady recovery.

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Buchteile zum Thema "Listed property trusts"

Newell, Graeme. „Listed Property Trusts in Australia“. In Global Trends in Real Estate Finance, 46–63. Oxford, UK: Wiley-Blackwell, 2009. http://dx.doi.org/10.1002/9781444315301.ch4.

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Davies, Paul S., und Graham Virgo. „3. The Requirements of an Express Trust“. In Equity & Trusts, 65–116. Oxford University Press, 2019. http://dx.doi.org/10.1093/he/9780198821830.003.0003.

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All books in this flagship series contain carefully selected substantial extracts from key cases, legislation, and academic debate, providing able students with a stand-alone resource. This chapter elaborates on the requirements of an express trust, which include certainty of intention, subject matter, and objects — referred to collectively as ‘the three certainties’. A trust requires that it be clear to which objects, whether people or purposes, the trustees can and cannot appoint the property. Also, there needs to be someone in whose favour the trustees, and in default, the court, can enforce the trust. This is known as the ‘beneficiary principle’. Certainty of subject matter is assessed objectively and problems may arise if the property is not clearly ascertained. Different tests are used to establish the certainty of objects: for a fixed trust, a complete list of beneficiaries is needed unless the trust is subject to a condition precedent. For discretionary trusts and fiduciary powers, it needs to be certain whether any given person is or is not within the scope of the class of objects.

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Murphy, Laurence. „Globalising Commercial Property Markets: The Development and Evolution of the Listed Property Trust Sector in New Zealand“. In Globalising Worlds and New Economic Configurations, 73–84. Routledge, 2017. http://dx.doi.org/10.4324/9781351157322-7.

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Makewa, Lazarus Ndiku. „Factors in Collaborations Between Technology Firms and Universities“. In IT Issues in Higher Education, 17–35. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1029-2.ch002.

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Collaboration between technology firms and universities is a concern that requires an in-depth study. In this chapter, a review was done to investigate factors affecting technology firms and universities. The review underscores several factors that should be considered in the said collaborations. These are institutional factors, relationship factors, output factors, and framework factors. Institutional factors were identified as resources, structure, and willingness to change. Relationship factors were identified as communication, commitment, trust, and culture; output factors were identified as objectives and knowledge and technology transfer; framework factors were listed as environment, contracts and intellectual property rights, and geographical distance. Future research should investigate the relationship between different factors and different phases of a collaboration. Further investigations should be done to look at the effect of collaborations between universities and technology small and medium-sized enterprises.

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Codogno, Lorenzo, und Giampaolo Galli. „Competitiveness“. In Meritocracy, Growth, and Lessons from Italy's Economic Decline, 152–71. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192866806.003.0008.

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Abstract Doing business in Italy is not easy. This chapter looks at how poor regulatory quality affects the life of companies and their appetite for investing in the country. Italy’s rank is deficient in labour market areas, the burden of regulation, the financing ecosystem, contract enforcement, property rights, and investor protections. And Italy does not attract foreign direct investment. Overall, Italians are rather unhappy with foreign companies because―so the story goes―they are outside the range of democratic control. In some cases, it may be accurate, but otherwise, it simply means that they can close their shop if it is no longer profitable. For Italian entrepreneurs, this is more difficult because if they close down a factory, they may have a hard time with other activities. Connections with politics are essential for Italian companies so that they can try to avoid creating tension with the political establishment. The burden of regulation is partly the effect of low mutual trust between citizens and authorities, as is made clear by the coexistence of widespread fiscal evasion and very intricate tax regulations. Corporate governance is generally rather disrespectful of minority interests, despite a good set of legal rules: most Italian companies are owned by single families, which typically place members of the family itself in top positions in the firm; independent directors, even when selected in minority lists, cannot act as they are expected to do by the rules. Corporate nepotism displaces professional managers and meritocracy.

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Williams, K. Y., Dana-Marie Thomas und LaToya N. Johnson. „The Value of Personal Information“. In Advances in Digital Crime, Forensics, and Cyber Terrorism, 161–80. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9661-7.ch009.

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Many cyber-attacks that result in data loss can be prevented if the target of the cyber-attack is properly prepared, has the necessary and latest defenses in place, and is constantly monitoring for attacks and intrusions. Whether those cyber-attacks occur as a result of user error; network issues (password files being created and distributed to a list of people); direct assaults (direct intrusion via a designed hack, system flaw, or exploitation of a known network/software issue); or due to an insider-threat (giving a password to a trusted co-worker who then uses it for other means) one aspect of prevention that must be addressed is the need for better security and additional layers of protection on the data that resides on the servers and in computing systems. With up-to-date protocols, reduced access to the system, and compartmentalization of information, it is possible to reduce the amount and type of data that is lost in many cyber-attacks. This chapter explores five types of information that are targeted during cyber-attacks, and discuss why this information is of importance.

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Emsley, John. „Nearly as nature intended: An exhibition of some curious molecules in the foods we eat“. In Molecules at an Exhibition. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780198502661.003.0005.

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There are scores of myths surrounding the things we eat: chocolate is almost addictive; Coca-Cola is just a concoction of chemicals; garlic wards off heart disease and cancer; an aspirin a day keeps the doctor away. None of these statements is true, but they contain a germ of truth. In this gallery we can inspect the portraits of some of the natural and unnatural chemicals which a normal diet contains. The pleasures of eating are sweet but fleeting, while the warnings about food seem bitter and never-ending. The warnings we should heed are those of professional dietitians, the front-line troops who are fighting the war against poor nutrition and unbalanced diets. While they help the people who are referred to them, the rest of us only hear their advice second-hand, and even then we do not heed it—which may explain why one person in five is now classed as obese (33% or more overweight) i. the USA, and one in ten in Britain. Behind the front-line dietitians is a regiment of armchair food commanders who offer their advice to anyone who listens. Often it is soundly based, telling us how to lose weight and still be properly nourished, but a lot is rather unhelpful, merely condemning some popular foods as ‘junk’ without explaining why they are so (although this term is generally taken to mean that they contain too much sugar, salt, saturated fats and additives). Examples of junk food are chocolate, colas, hamburgers and french fries. Sadly the healthy alternatives, such as raw celery, mineral water and lentils, lack appeal for many, and especially for children. Alongside claims about junk food come more dire warnings about the chemicals that are present in other foods, and especially if these have been added merely to make food look and taste more tempting, or if they are there as contaminants that come from pesticides and processing. Surprisingly, most food-related illness comes not from these, but from micro-organisms such as bacteria and fungi, and we are most at risk when we eat food that has not been properly stored or prepared. Ideally food should be free of all dangerous impurities, be they bacteria, fungi or chemicals.

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Konferenzberichte zum Thema "Listed property trusts"

„AUSTRALIAN LISTED PROPERTY TRUSTS IN LIGHT OF THE SUB-PRIME CRISIS“. In 15th Annual European Real Estate Society Conference: ERES Conference 2008. ERES, 2008. http://dx.doi.org/10.15396/eres2008_291.

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„The effects of management structure on the performance of listed property trusts“. In 11th European Real Estate Society Conference: ERES Conference 2004. ERES, 2004. http://dx.doi.org/10.15396/eres2004_217.

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„The Cross-Sectional Determinants of Listed Property Trust (LPT) Returns“. In 14th Annual European Real Estate Society Conference: ERES Conference 2007. ERES, 2007. http://dx.doi.org/10.15396/eres2007_247.

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Leiss, Peter J., Marcus A. Mazza und Erin M. Shipp. „Heavy Truck Fuel Storage System Design for Improved Impact Protection“. In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11854.

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Abstract Heavy (Class 8) truck fuel storage location and geometry has not significantly changed in several decades. Manufacturers have taken steps to improve their designs by eliminating cross over lines and making material property and thickness changes, among other changes, but there has been no mandate or significant effort to decrease the potential for post collision fuel fed fires in heavy trucks. Even with these design changes, FARS data indicates the number of fatal post-impact fires has not decreased over time. Several studies were conducted in the 1980’s and 1990’s that brought the unprotected design of the fuel storage on these vehicles to light. This paper combines these historical works with current FARS data on the subject and describes a different design approach that increases the impact protection of the fuel storage tank. This new approach uses the truck’s frame rails to guard the fuel storage tank and absorb and redirect impact energy. Currently, a heavy truck “saddle” mounted fuel tank’s integrity is tested through a 30 foot drop test prescribed by 49 CFR 393 and also listed in SAE Recommended Procedure J703. In this work, a crash test methodology used to test the integrity of a school bus side mounted fuel tank as prescribed in FMVSS 301S is discussed. Results of using this crash methodology on a current “saddle” tank design and a prototype of the new fuel storage system design are also presented.

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Pavićević, Aleksandra. „POJAM FIDUCIJARNOG PRENOSA SVOJINE KAO REALNE GARANCIJE“. In XVIII Majsko savetovanje. University of Kragujevac, Faculty of Law, 2022. http://dx.doi.org/10.46793/xviiimajsko.227p.

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The subject of this paper is a critical analysis of the concept of fiduciary transfer of property, as a specific real guarantee in modern comparative civil and commercial law. This legal construction has been functioning in European legal practice for a long time, and in some legislations as a reaffirmed real guarantee originating from Roman law, suitable to satisfy various interests of counterparties in the sphere of providing financial and banking services. Since positive Serbian Real law does not regulate this institute, the aim of the paper is to assess the existing legal and doctrinal provisions of this legal construction in foreign regulations, as well as in drafts of domestic laws de lege ferenda. The author estimates that this is a useful institute, which should be included in list of domestic rights of security rights in rem de lege ferenda (which is its higher gender term) and which is also in line with the solution of the "soft" EU law, with which we are trying to harmonize the domestic solution. As the most significant differentia specifica in this concept, the author singles out: the creation of a guarantee by specific division of property powers between the trustee and the beneficiary, with the possible lack of publicity (ability to conceal debt and debtors' creditworthiness) and reduced formalities in the exercise of the right of settlement - which are significant advantages over liens, as the most related institute.

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Penkov, Alexander, Valery Stolyar, Elena Lukianova, Maya Amcheslavskaya und Ekaterina Shimkevich. „Techniques of establishing efficient doctor-patient interaction at telemedicine consultations“. In Innovations in Medical Science and Education. Dela Press Publishing House, 2022. http://dx.doi.org/10.56199/dpcsms.coll5466.

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This article covers a comprehensive study into preparations for and the conduct of telemedicine consultations that would provide for arranging and conducting high-quality remote sessions between a doctor and a patient. The purpose of our study is to detect the factors that have a positive impact on the healthcare services provision level, and to establish a procedure of conducting telemedicine consultations that would allow a clinic to provide medical health quickly, safely and with proper quality and to improve its customer focus. The work is novel in that such studies aimed at defining a telemedicine consultation algorithm have not been carried out in Russia before, therefore, the Department of Medical Informatics and Telemedicine of the Institute of Medicine at the RUDN University decided that it was necessary to hammer out a methodology of medical services provision. As part of the study, we viewed and analyzed pre-recorded telemedicine consultations and put together an expert team consisting of experts in various areas of medicine, as well as of patients. As a result of that work, this article lists and defines common mistakes that lead to conflicts and erode patients’ trust in a clinic, catalogues stages of preparation for a telemedicine consultation making it possible to reduce the number of errors in remote consulting and devises obligatory techniques of remote medical aid.

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Guo, Yongwei, Qiming Wang und Xuedong Gu. „Analysis of Manufacture Errors for Space Truss With Bolted Spherical Joints Base on Monte Carlo Method“. In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25180.

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The active reflector of the five-hundred-meter aperture sphere radio telescope (FAST) is constituted by about 4600 triangular reflector elements, whose surface error will determine the telescope’s antenna efficiency. One solution is a grid structure backup with the bolted spherical joints, in which the surface accuracy is dominated mainly by the length accuracy of the rods in it. In this paper, an accuracy analysis based on Monte Carlo method is proceeded to predict the surface error. Random errors are input the rods, and the surface errors in root mean square (rms) are output. After the calculations, the final accuracy’s probability distribution charts are given for the different error inputs. And a relationship chart between rod length error and final accuracy is given to help determining the most reasonable rod length error. To solve the position of the grid structure, an iteration method is deduced. The relationship between joints and rods in the frame structure which is described as a graph, is presented by adjacency list. Forces on joints are balanced at the beginning, but when rod length errors are input, forces to pull or push the joints are yielded. The process of moving their positions to make the forces balance again is the process to solve the surface accuracy. An existing reflector element model was measured. The measurement verified the analysis. Finally, the proper accuracy of rods length error is given. It is useful for cost controlling and time keeping in FAST design, for the possibility to achieve a qualified surface by controlling the manufacture error of rods reveals that the reflector elements maybe avoid adjustment and can be mounted to the telescope directly. The method to predict accuracy can be generalized for the other grid structures.

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Liu, Cheng, Alexandrina Untaroiu, Houston G. Wood, Qingdong Yan und Wei Wei. „Parametric Analysis and Optimization of Inlet Inflection Angle in Torque Converters“. In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64783.

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Torque converters are widely used in all means of transportations, such as cars, buses, trucks, and the list can go on. Since power is transmitted via fluid, the blade geometry which forms the flow passages is crucial to torque converter performance. The inlet deflection angle is an important blade design parameter with respect to both performance and manufacturability of torque converters. In the conventional design procedure, inlet deflection angle is often given by the designer’s experience or is selected based on experimental data if available. This study presents a method of optimizing the inlet deflection angle for torque converters and provides a series of non-inferior solutions for the decision maker to select from. The advantages of the method proposed consist of improved design quality and significantly shorter design cycle. A combination of computational analysis and global optimization algorithm was used in this study. A torque converter base model was evaluated using computational fluid dynamics for predicting its performance. The proper grid density and turbulence model were selected through correlation to the experimental data available. The following tasks were automated and integrated to form a parameterized design loop: 1) torque converter flow field CAD modeling, 2) meshing, and 3) CFD simulations and results post-processing. Selecting peak efficiency, stall torque ratio and stall pump capacity factor as objective functions, a multi-objective genetic algorithm was included in the design loop to optimize the torque converter performance. The CFD results proved to be in good agreement with the experimental data over the range of operating conditions considered in this study. The influence of inlet deflection angle on the performance of torque converter was determined through a parametric analysis and a series of Pareto-optimal solutions were determined by the optimization procedure, which proved to improve the performance of the base model torque converter.

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