Literatura científica selecionada sobre o tema "Employee representative bodies"

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "Employee representative bodies".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "Employee representative bodies"

1

Mulder, Bernard Johann. "The law concerning the election of employees’ representatives in company bodies". European Labour Law Journal 8, n.º 1 (março de 2017): 96–104. http://dx.doi.org/10.1177/2031952517699136.

Texto completo da fonte
Resumo:
This paper assesses the juridical aspects of the right to vote for, and be elected as, employee representative in company bodies. The assessment is made in the light of the pending case Konrad Erzberger v TUI AG, C 566/15 before the Court of Justice of the European Union (CJEU). The case was referred to the CJEU by the Kammergericht Berlin (Germany) and it was lodged on 3 November 2015. In the case, two issues related to the provisions of the Treaty of Functioning of the European Union (TFEU) are addressed to the CJEU. One is if it is discrimination on grounds of nationality, another is if national legislation is incompatible with the provisions on freedom of movement for workers, when the national legislation does not permit inviting employees outside a country’s borders to vote or stand as a candidate for the employee representation in that company’s supervisory body. In this paper it is argued that national law in the case at issue is not incompatible with European Union (EU) law. Consequently, there is no discrimination on grounds of nationality, and there is no obstacle to free movement for workers. Instead, it is a matter of what law shall apply.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Szőke, Brigitta, Eszter Ilona Tóth e Péter Vanó. "The Links between Human Resources Management and Corporate and Human Resources Strategy". Acta Carolus Robertus 12, n.º 1 (28 de julho de 2022): 85–95. http://dx.doi.org/10.33032/acr.2878.

Texto completo da fonte
Resumo:
The macroeconomic environment has a significant impact on the economic performance of organisations, and therefore has a significant impact on the management of human resources and the need to manage them. The legal regulation of the labour market is carried out by the parliament, the government and local government bodies. All these legal regulators have a major impact on human resource management by setting the conditions of employment and dismissal, the rights of workers and employers. Employee organisations are involved in both the employer and the employee as the representative of the employee's interests. In this way they also have a direct influence on the management of the workforce in their organisations. Consequently, workers' organisations can also assert their rights in labour legislation, thus indirectly influencing labour management to a large extent. Our research is based on the identification of various documents, policies and written strategies. The aim of our analysis is to examine whether strategic human resource management is feasible without properly established processes and policies. Furthermore, we will study the benefits that the adoption of a written human resources strategy can bring to organisations.
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Tsurikov, Vladimir. "On the impact of excessive document flow on the labor activity of a budgetary organization employee". Economics and the Mathematical Methods 59, n.º 1 (2023): 65. http://dx.doi.org/10.31857/s042473880024882-9.

Texto completo da fonte
Resumo:
The causes and results of the formation of excessive workflow in budgetary organizations are analyzed with the help of mathematical modeling. The model was built taking into account the opinion of the former head of the Ministry of Economic Development of the Russian Federation Maxim Oreshkin, according to whom excessive reporting consumes a huge amount of resources, and therefore can be generated with a hostile intent to create an obstacle to achieving national goals. The model is based on the following assumptions: An agent (an employee of a budgetary organization) cannot refuse to carry out the reporting burden. An official (an employee of a higher ranking organization or a representative of government bodies) has an uncontrolled and unlimited opportunity to demand that the controlled organization draw up documents in the form proposed by him and provide them within the specified time. The utility of the official increases with receipt of these documents. It is shown that under such conditions the official benefits by unlimitedly increasing labor intensity of the reporting burden imposed on the agent. As a result of an increase in the amount of unpaid effort spent by an agent on reporting, his activity, which is determined by the part of paid efforts that exceed their minimum volume, drops to zero. The activity of two officials is compared: one of them has no hostile intentions and simply increases his work’s utility, while the other pursues a hostile goal to paralyze the work of the controlled organization. It is shown that there is only a quantitative difference in the results of their activities: the threshold value of the complexity of tasks, the achievement or exceeding of which destroys the activity of the agent, is lower in the case of a hostile official. Three possible ways of limiting the activity of an official are discussed: taxing the controlling organization with a corrective tax, full compensation for the costs of the controlled organization, and legislative restriction of document flow.
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Mashynichenko, O. "ADMINISTRATIVE STATUS OF THE HEAD OF THE ENTERPRISE AS AN OFFICIAL". Scientific Notes Series Law 1, n.º 13 (março de 2023): 209–13. http://dx.doi.org/10.36550/2522-9230-2022-13-209-213.

Texto completo da fonte
Resumo:
This article describes the administrative status of the head of the enterprise as an official. It is determined that an official is an employee of state bodies, enterprises, institutions, organizations of various forms of ownership, whose activity, for the purpose of implementing management functions, has a power-administrative nature and is aimed at organizing and ensuring the efficiency of the work of other persons. Whereas managers are a type of officials who are empowered with administrative authority in relation to a certain formally-organized team headed by them, who carry out internal organizational management of it. Unlike other officials, the head of the enterprise is a line manager. The specificity of the position of the head of the enterprise as part of the management apparatus allows to determine the economic and information levers of management. in a broad sense, it is appropriate to refer to the administration as the management apparatus of the enterprise: the highest level - the head of the enterprise, his deputies, heads of structural subdivisions of the centralized management apparatus; secondary - managers of structural divisions of the enterprise (productions, workshops); lower - shift chiefs, foremen, foremen. All of them, by the nature of their powers, are officials who have the right to make and organize the implementation of decisions binding on other employees of the enterprise. In a narrow sense, the administration of the enterprise consists of first-level managers who perform only managerial functions, while second- and third-level managers also perform production and economic functions. It is emphasized that the specificity of the position of the head of the enterprise as a type of official is seen in the fact that he carries out power and administrative activities within the enterprise and, in accordance with the above-mentioned social roles performed by the main organizational link of the industrial and economic sphere, acts simultaneously in three guises: as a representative of a legal entity, representative of a collective of employees, head of administration. This testifies to the complexity of his activity, it makes it possible to consider that the head of the enterprise operates in three different "planes", which, although interconnected, have significant differences.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Hillberg, Seppo, François Baque e Stéphane Gaillot. "Jules Horowitz Reactor Irradiation Devices: Inspection Methods proposal". EPJ Web of Conferences 253 (2021): 04004. http://dx.doi.org/10.1051/epjconf/202125304004.

Texto completo da fonte
Resumo:
Jules Horowitz Reactor (JHR) irradiation test devices (so called ADELINE and MADISON) must undergo a periodic inspection every 40 months (French ESP(N) Regulation). The first step of inspection proposal was performed from October 2019 to March 2020 and concerns application of non-destructive methods for electron beam welds, while examining the possible methods and locations that could be utilized. This study has been performed in collaboration between VTT Technical Research Centre of Finland Ltd and French CEA with VTT employee secondment at CEA Cadarache. The initial conclusions of this work are the following: • Two inspection methods are likely needed. • Eddy current is likely suitable for surface examination while volumetric ultrasonic inspection can be used for tube bodies. • Inspection under-water in a storage pool (EPI) is likely the best option for location in the JHR. • Some automation and remote controls will be needed during the inspection process. The inspection area is quite large as the whole tube bodies will be inspected. • Internal surfaces located between the nested tubes likely cannot be inspected for corrosion and therefore, sealing the space from oxygen and water will be likely be the best option. • Experimental reference is a critical next step of the work to assess and qualify the inspection methods. As the next step, CEA will continue discussions on requirements of the mock-ups: for eddy current inspection, a Zircaloy-4 planar specimen with artificial reflectors is needed. For ultrasonic reference, a representative mock-up of the cylinder with a weld and artificial defect(s) is needed. The mock-up testing will provide an experimental reference to CIVA calculations as simulations of this work have been performed with CIVA software, which is extensively used in the industry and research organizations in simulation of non-destructive control. This study will allow further steps in the future, up to the qualification of inspection methods for JHR test devices.
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Eden, M., J. Higgerson, K. Payne, W. Whittaker e S. Verstappen. "AB1603 EVIDENTIAL REQUIREMENTS FOR DECISION-MAKING ABOUT WORKPLACE INITIATIVES TO MITIGATE THE IMPACT OF RHEUMATIC AND MUSCULOSKELETAL DISEASES: QUALITATIVE INTERVIEWS WITH REPRESENTATIVES OF UK ORGANISATIONS". Annals of the Rheumatic Diseases 82, Suppl 1 (30 de maio de 2023): 2036.1–2036. http://dx.doi.org/10.1136/annrheumdis-2023-eular.3911.

Texto completo da fonte
Resumo:
BackgroundDecisions about whether to invest in RMD-related workplace initiatives/adaptations can be made by determining, from the relevant perspective, if benefits outweigh the costs of implementation. Little is known about what information organisations need to facilitate these decisions.ObjectivesThis study aimed to explore motivations and evidential requirements for employers to invest in workplace health initiatives.MethodsSemi-structured online interviews with representatives of large UK-based (not-for-profit and for-profit) organisations were audio-recorded. For each organisation, a line manager, director, and representative with workforce health remit were interviewed. Interview data were transcribed verbatim and subject to thematic analysis by two researchers trained in qualitative methods. Themes were agreed in discussion with the study team.ResultsWe recruited 13 representatives (5 directors, 3 line managers, and 4 with a specific remit for workforce health). Three not-for-profit organisations (local authority, university, and National Health Service) were represented by seven participants and three for-profit organisations (restaurant chain, telecoms provider, and technology company) were represented by six individuals.MotivationsAll participants believed that investment in measures to promote employee health and well-being could positively contribute to their organisation’s efficiency.…there’s loads of academic research that says… if you look after your colleagues… if you cater to their… individual needs, then that has a very positive impact on organisation performance.(Director, not-for-profit)Attraction and retention of staff – seen as increasingly difficult - was a motivating factor to invest that was shared by employers, as was the desire to avoid litigation, promote workplace camaraderie, and to maintain organisational reputation.Low RMD prevalence rates in the young workforce in one organisation (a restaurant chain) meant that these conditions did not influence decision-making. For organisations with older workforces doing heavier manual work, higher prevalence rates of RMD were a key reason to act....musculoskeletal is, like, the second biggest reason for sickness within the organisation.(Line manager, not-for-profit)Evidential requirementsUse of checklists/assessments to reveal individual RMD-related needs was commonplace throughout organisations. Self-identified health needs, typically related to line managers, would instigate a process where occupational therapist (OT) input may be sought. Requests and OT recommendations are reportedly, without exception and irrespective of cost, met and followed. No organisation had set aside a specific budget for workplace initiatives.Decisions involving significant investments in workforce health initiatives were usually made by committees or by small teams comprising senior staff and directors. Line managers and those with a health remit would put forward a case for investment to these bodies:…we would pull together a bit of a proposal really on what that would look like…what is the impact of it?...we support it with facts…even benchmarks of what’s going on in the outside.(Health remit representative, for-profit)Evidence from OTs/other health professionals, in-house absenteeism data, workforce survey results/informal feedback from colleagues, benchmarking data, and academic/official report findings were used to make a case for investment.ConclusionThe demand for RMD-specific interventions varies according to needs of particular workforces. Despite diversity of organisation type, workforce factors (i.e. demographic factors, nature of work) and employer roles, common processes for informing investment decisions and typical evidence requirements have been identified. Findings can inform the development and evaluation of workplace interventions to benefit people with RMD.AcknowledgementsThis work is undertaken as part of the Centre for Musculoskeletal Health and Work, funded by Versus Arthritis and the Medical Research Council. We thank study participants.Disclosure of InterestsNone Declared.
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Лютов, Никита, e Nikita Lyutov. "Works Councils in Russia: Balance of Economic and Social Rights". Journal of Russian Law 2, n.º 5 (16 de abril de 2014): 95–104. http://dx.doi.org/10.12737/3466.

Texto completo da fonte
Resumo:
The Labour Code of the Russian Federation was amended in 2013 in a way that a new body of workers’ representation — works councils — can be established. These amendments don’t add any new rights or obligations neither to employers nor to employees. They are made with purely political purposes and only imitate the creation of the analog of the well-known German system of works councils. The author comes to conclusion that currently existing rights in informing and “taking into account” the workers’ representative body opinion, contained in the Russian Labour Code, are not sufficient for existence of the real industrial democracy. The article is aimed at answering the question, whether an implementation of functioning works councils may be beneficial to the adequate balancing of social rights of workers and economic rights of the employers. Although the full transposition of the German works councils system seems to be impossible, some of its positive features may be effectively adopted in the Russian law. For example, the employer’s obligation to consult workers shouldn’t be dependent on the existence of the workers’ representative bodies. Besides, a range of issues that are subject to the mandatory informing of workers by the employer must be significantly broadened. The procedure of consultations must include the real negotiations between the employer and employees on the basis of good faith principle.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Abbasova, Elena, e Valeriy Vassiliev. "RIGHTS OF REPRESENTATIVE BODIES OF EMPLOYEES IN THE LABOR PRODUCTIVITY MANAGEMENT". Bulletin of the South Ural State University series "Law" 17, n.º 1 (2017): 46–50. http://dx.doi.org/10.14529/law170108.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Mateljak, Željko, e Dubravka Jurlina Alibegović. "Međuzavisnost rodne zastupljenosti i postignutih rezultata u tijelima državne uprave u Republici Hrvatskoj". Revija za socijalnu politiku 30, n.º 2 (27 de dezembro de 2023): 223–41. http://dx.doi.org/10.3935/rsp.v30i2.1940.

Texto completo da fonte
Resumo:
Each institution in the state administration in the Republic of Croatia organizes its operations through numerous administrative organizations (administrations) and organizational units (independent sectors, sectors, services, departments, sections and sub-sections) whose number and responsibilities differ with regard to their internal organization. In this paper, the emphasis is on state administration bodies, that is, on ministries and state administrative organizations. The paper tries to answer the research question of whether there is a difference in the efficiency of the operations of state administration bodies in the Republic of Croatia in relation to the representation of women and men among employed officials and state employees. The aim of the paper is to recognize the importance and analyze gender representation in state administration bodies in the Republic of Croatia and to determine whether there is a difference in the efficiency of work results in state administration bodies in relation to the representation of women and men. The research covers 16 ministries and 12 state administrative organizations in the Republic of Croatia, which employ a total of about 49,820 employees. According to the research results, there is no statistically significant difference between business efficiency and gender representation in state administration bodies in the Republic of Croatia.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Chajduga, Tomasz, e Manuela Ingaldi. "Hiring Disable People to Avoid Staff Turnover and Enhance Sustainability of Production". Sustainability 13, n.º 19 (24 de setembro de 2021): 10577. http://dx.doi.org/10.3390/su131910577.

Texto completo da fonte
Resumo:
Companies struggle with maintaining staff turnover at a low and sustainable level. Hiring a new employee means costs for the company, such as recruitment, medical examinations, and training, etc. In addition, new employees must learn to perform their tasks properly and quickly, which can take up to several months. Disabled employees change jobs less frequently due to the fact that it is difficult for them to find a new one. For employers, such an employee, if they have the same skills as a fully functional employee, can therefore be very valuable, for example, in relation to the reduction of costs associated with frequent employment of new employees. In addition, employing people with disabilities also brings social benefits related to counteracting social exclusion and the possibility of independent living by such people. The human factor is an element that greatly influences sustainable production. The objective of the research was to verify the potential of hiring disabled employees in order to reduce staff turnover. In other words, the analysis has been designed to understand if hiring disabled staff, making expenditures to prepare the workplace and training for them could be potentially efficient in terms of obtaining a higher level of sustainability of the employment in the company. The research has the form of direct (in-depth) interviews in the case of representatives of the companies involved, and a paper questionnaire for the disabled subjects (employees). It took place from September to December 2020 and was the basis for the statistical hypothesis testing. The conducted research was based on a statistical U Mann–Whitney test and fi Yule index calculation. The results showed that people with disabilities remain employed by the same employer longer in comparison to “able-bodied” employees, meaning it may be worthwhile to make extra expenditures to hire disabled persons who could become loyal employees for years. Moreover, it has been statistically proven that the key factor influencing the attractiveness of a given job for a disabled person depends on the type of disability they have.
Estilos ABNT, Harvard, Vancouver, APA, etc.

Teses / dissertações sobre o assunto "Employee representative bodies"

1

Dupin, Coralie. "Les fusions transfrontalières de sociétés de capitaux dans l'Union européenne : aspects de droit social". Thesis, Paris 2, 2013. http://www.theses.fr/2013PA020006.

Texto completo da fonte
Resumo:
Les fusions transfrontalières de sociétés de capitaux n’intéressent pas uniquement le droit des sociétés mais revêtent aussi d’importants aspects de droit social. Si la directive du 26 octobre 2005 facilite ces opérations, le renvoi aux législations nationales opéré soulève de nombreuses difficultés en l’absence de traitement harmonisé de leurs conséquences sociales. Les interrogations suscitées par la mise en oeuvre de la participation des travailleurs aux organes de gestion de la société issue de l’opération n’en sont qu’une illustration. D’autres questions relatives notamment au devenir des instances de représentation du personnel existant au sein des sociétés parties à la fusion, aux normes collectives ou aux contrats de travail, restent en suspens. A celles-ci et à d’autres, cette étude tente d’apporter des réponses. Les enjeux dont les fusions transfrontalières sont porteuses l’exigent
Cross-border mergers of incorporated companies do not only interest Company Law but also comprise important aspects of Labour & Employment Law. If the European Directive dated 26 October 2005 facilitates these transactions, the reference made to national legislation raises many difficulties in the absence of harmonized treatment of the social consequences of transactions. The questions raised by the implementation of workers' participation in management bodies of the company resulting from the transaction are an illustration. Other issues include the fate of employees’ representative bodies of existing staff within the merging companies, collective norms and employment contracts, remain unresolved. To these and others, this study attempts to provide answers. The consequences of the cross-border transactions require that answers be given to the unresolved issues
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Renacco, Edwige. "Droit social et gestion d'un service public administratif : Étude sur les métamorphoses des relations professionnelles au sein des organismes de Sécurité sociale". Electronic Thesis or Diss., Lyon 2, 2024. http://www.theses.fr/2024LYO20014.

Texto completo da fonte
Resumo:
Les relations professionnelles au sein des organismes de Sécurité sociale sont l’objet de la spécification d’un modèle, résultant d’un continuum de mouvements d’attraction-répulsion entre droit privé et droit public. Le droit social, appliqué à la gestion d’un service public administratif, en est le véhicule. Il est déployé, tout d’abord, en tant que système d’édification de la protection du travailleur et de ses collectifs ; puis, comme instrument de « régulation » de cette même protection. L’appropriation de ces normes ainsi données a priori par les acteurs des relations professionnelles, suivant un exercice in concreto donne lieu, alors dans toute sa complétude, à la spécification d’un modèle à part entière
Collective employment relations within social security institutions are the subject of the specification of a model, resulting from a continuum of attraction-repulsion movements between private and public law. Social law, applied to the management of a public administrative service, is the vehicle for this. It is deployed, first of all, as a system for building the protection of the worker and his collectives; then, as an instrument to "regulate" this same protection. The appropriation of these norms thus given a priori by the actors of collective employment relations, following an exercise in concreto, then gives rise, in all its completeness, to the specification of a model in its own right
Estilos ABNT, Harvard, Vancouver, APA, etc.

Livros sobre o assunto "Employee representative bodies"

1

Ohio. General Assembly. House of Representatives. The Ohio House of Representatives, 127th General Assembly: The true spirit of representative democracy. [Columbus, Ohio: The Ohio House of Representatives, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Grebennikova, Anna, Ekaterina Mamlina, Sergey Zyuzin e Ekaterina Vedyaeva. Forms of public self-government. ru: INFRA-M Academic Publishing LLC., 2024. http://dx.doi.org/10.12737/1859085.

Texto completo da fonte
Resumo:
The theoretical foundations of the organization of public self-government are analyzed, as well as the actual problems of the formation of such forms as territorial public self-government, the institute of village elders, and ways to solve them are proposed. For students studying in the field of training 03/38/04 "State and municipal administration", teachers, as well as members of representative bodies of municipalities, municipal employees, chairmen and employees of territorial public self-government bodies and village elders.
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Representatives, Ohio General Assembly House of. The true spirit of representative democracy. Columbus, Ohio: Ohio House of Representatives, 127th General Assembly, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Ohio. General Assembly. House of Representatives. The true spirit of representative democracy. Columbus, Ohio: Ohio House of Representatives, 127th General Assembly, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Ohio. General Assembly. House of Representatives. The true spirit of representative democracy. Columbus, Ohio: Ohio House of Representatives, 127th General Assembly, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

United States. Congress. Office of Compliance. Labor representation: Collective bargaining rights in the Congressional workplace. Washington, D.C.]: Office of Compliance, U.S. Congress, 2011.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Zabelina, Ol'ga, Farida Mirzabalaeva, Svetlana Pashkova, Irina Omel'chenko, Mariya Sergeeva e Mariya Yudina. Regulation of new forms of employment: theory and practice. ru: INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/2033416.

Texto completo da fonte
Resumo:
The monograph identifies trends in changes in the field of employment and problems associated with the expansion of employment in new forms in Russia and in the world under the influence of modern factors of transformation of the sphere of labor; summarizes international, foreign and domestic approaches to the identification and systematization of new forms of employment; provides a statistical assessment of the scale and features of the development of new forms of employment in the Russian Federation The risks of new forms of employment for employees, employers (and platform owners) and the state are considered; a systematic review of foreign experience in state regulation of new forms of employment is presented and a set of proposals for the development of flexible regulatory regulation of new forms of employment in Russia to achieve a balance of interests of the state, business and employees is substantiated. It is addressed to researchers, university teachers, graduate students and students studying the labor market and the sphere of social and labor relations, as well as representatives of legislative and executive authorities, state employment service bodies, trade unions and public organizations.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Library of Congress. Congressional Research Service, ed. Commissions and boards to which House party leaders appoint representatives: As of March 28, 1988. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1988.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Grebennikova, Anna, Irina Osipova, Ol'ga Saltykova, Maksim Mokeev, Sergey Naumov e Ekaterina Vedyaeva. Basics of city management. ru: INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/1487718.

Texto completo da fonte
Resumo:
The textbook contains the main questions on the disciplines of the municipal block and is designed to form the level of training of students determined by both the state standard and additional requirements established by educational institutions. Prepared in accordance with the federal state educational standard for the course "Fundamentals of city Management" for students of higher educational institutions in the specialty 38.03.04 "State and municipal Management". Working with the textbook will assist students in preparing for exams, and can also be useful in practical activities for teachers, municipal employees, deputies of representative bodies of local authorities and anyone interested in the development of urban governance in Russia.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

1970-, Quezon Manuel L., e Philippines. Congress (1987- ). House of Representatives., eds. Assembly of the nation: A centennial history of the House of Representatives of the Philippines, 1907-2007. [Manila]: House of Representatives of the Philippines, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Capítulos de livros sobre o assunto "Employee representative bodies"

1

Wu, Chunming. "A Comparative Study of the Astronomical Navigation Between Ancient China and Pacific Austronesian". In The Archaeology of Asia-Pacific Navigation, 187–206. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4079-7_8.

Texto completo da fonte
Resumo:
AbstractAstronomical navigation was a kind of sea route orientating and steering practice the ancient seamen used to judge the direction, relative position, and track of ships in the blue water of deep sea by observing the stars, other celestial bodies, and their regular occurrence in the sky, as one of maritime piloting methods employed by ancient Chinese navigators. The comparative study of ethno-archaeology revealed that the representative astronomical navigation practices recorded in the ancient Chinese literatures are highly consistent with the “star observation method” and “star measuring method” used by both the local seamen in south China and the Austronesian navigators in Pacific, showing the close cultural connection between them.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Wu, Chunming. "A Comparative Study of the Astronomical Navigation Between Ancient China and Pacific Austronesian". In The Archaeology of Asia-Pacific Navigation, 187–206. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4079-7_8.

Texto completo da fonte
Resumo:
AbstractAstronomical navigation was a kind of sea route orientating and steering practice the ancient seamen used to judge the direction, relative position, and track of ships in the blue water of deep sea by observing the stars, other celestial bodies, and their regular occurrence in the sky, as one of maritime piloting methods employed by ancient Chinese navigators. The comparative study of ethno-archaeology revealed that the representative astronomical navigation practices recorded in the ancient Chinese literatures are highly consistent with the “star observation method” and “star measuring method” used by both the local seamen in south China and the Austronesian navigators in Pacific, showing the close cultural connection between them.
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Schröter, Welf. "Proposals for the Future of Internal Crowdsourcing: A Trade Union-Based Approach". In Contributions to Management Science, 135–38. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52881-2_7.

Texto completo da fonte
Resumo:
AbstractThe “FST” personnel network “Forum Soziale Technikgestaltung” (Forum for Social Forms of Technology) from the German Trade Union Confederation (DGB) of Baden-Württemberg has been examining the subjects informatization of work and digitization since 1991. More than 4600 women and men from works councils and staff councils, union representative bodies and the workforce, large companies, small- and medium-sized enterprises, the manual trades, as well as self-employed people have been involved in an exchange about their experiences in production and services and in administrations. Against this background, and drawing on the accumulated knowledge gained from experience, the following proposals for the future of internal crowdsourcing have been derived. The proposals represent a trade union-based approach.
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Manera, Lorenzo. "Digital Objects’ Aesthetic Features. Virtuality and Fluid Materiality in the Aesthetic Education". In Springer Series in Design and Innovation, 147–55. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-49811-4_14.

Texto completo da fonte
Resumo:
AbstractThe growing and ubiquitous presence of digital objects raises issues of interest from the points of view of both Aesthetics and interaction design. In fact, such issues concern the perceptual dimension that defines our relationship with digital objects, the reconfiguration of the sensitive experience that their development implies, their hybrid ontological status, and their possible role in developing innovative forms of aesthetic education combined with design thinking.In the contemporary debate, digital objects are intended – on the one hand – as designed objects that incorporate and employ digital technologies [1–3].On the other hand, they are interpreted as virtual bodies, interactive digital images that become a phenomenon of the binary representation of an algorithm which interacts with a user [4]. Within the former perspectives, digital objects display a quality that broadly belongs to technical devices, meaning their openness to forms of interactivity, and their sensitivity to contingency. In the latter, the features of intermediacy and virtuality are considered the defining characteristics of digital objects. The growing complexity of digital objects is, in fact, re-defining the relationship between materiality and distance, provenance and pertinence, suggesting an interactive conception of agency that allows forms of aesthetic experience in which imagination, sensibility and intuitions can be displayed within relational structures. By showing the results of a research project focused on digital materials and their transformation, which involved children aged 8 to 11 years old, this contribution aims to discuss the possible role that such objects can play in developing new forms of aesthetic education.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Heller, Frank, Eugen Pusić, George Strauss e Bernhard Wilpert. "Collective Bargaining, Unions, and Participation". In Organizational Participation, 97–143. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198288510.003.0005.

Texto completo da fonte
Resumo:
Abstract Collective bargaining and representative participation can be viewed as alternative forms of employee representation. This chapter is concerned with the relationship between the two. Though our primary focus is on tensions between unions and Representative Participative Bodies (RPBs), such as works councils, we will consider two other issues, the attitudes of unions towards participation, and the extent to which either collective bargaining or participation adequately represents employees’ interests. In view of the great variety of industrial-relations arrangements throughout the world, this chapter makes no pretence at being comprehensive. (It ignores, for example, developments in Asia, Latin America, and Eastern Europe.) Instead it places considerable (but far from exclusive) emphasis on Germany and the USA, both because there has been more relevant research done in these countries and because (as we shall see later) they may represent opposite ends of a continuum.
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Baluch, Alina M. "‘The most striking progressive achievement in labor and employment policy’? The Scottish Living Wage in Social Care during Austerity". In Working in the Context of Austerity, 239–60. Policy Press, 2020. http://dx.doi.org/10.1332/policypress/9781529208672.003.0012.

Texto completo da fonte
Resumo:
This chapter details the Scottish Government's implementation in 2016 of the Scottish Living Wage (SLW) for front-line workers in adult social care in an effort to address cost and quality tensions in the market as well as recruitment and retention difficulties. After briefly outlining the literature on minimum and living wages and on austerity in social care, the chapter presents findings on local authorities' and providers' experiences with SLW implementation. Drawing on interviews with voluntary and private social care providers across Scotland, representatives of lead employer bodies, union officials, commissioning authorities, and civil servants, the findings suggest that the re-regulation of pay has, paradoxically, prompted greater insecurity in market relations in social care. Local authorities' experiences highlight several unintended consequences of the policy, including an uneven distribution of funding to poorer payers that disadvantages fair employers, bringing services in-house and making cuts to other services. The chapter then discusses the experiences and impact of SLW implementation on social care organizations, such as providers making efficiencies and withdrawing from or declining to enter unviable contracts. It concludes with implications for the sustainability of the SLW and service provision in adult social care.
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Vij, Richa. "Do Women Perceive Organizational Culture Differently From Men?" In Handbook of Research on Civic Engagement and Social Change in Contemporary Society, 253–71. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4197-4.ch015.

Texto completo da fonte
Resumo:
With the increasing proportion of women in the workforce, need for effective management of gender-diversity is being felt. While much of the effort in gender-diversity management has been on representation of women in the decision-making bodies and processes, the most fundamental diversity issue for the organization remains practically untouched. Organizational culture has long been shaped and dominated by male orientations and therefore focus on change in the organizational culture can help in addressing the issue of discrimination and isolation of women in organizations. Any intervention strategy in this regard would require understanding of the attributes of organizational culture that give the feeling of discrimination to women employees resulting in their isolation from the mainstream, thereby hampering their performance. The present chapter aims at identifying the attributes of organizational culture in respect of which the perceptions of female employees differ significantly from those of male employees in State Bank of India.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Todorović, Nada. "PARTNERSTVO RADA I KAPITALA U KORPORATIVNOM UPRAVLjANjU". In USKLAĐIVANjE pravnog sistema Srbije sa standardima Evropske unije. [Knj. 11], 753–64. University of Kragujevac, Faculty of Law, 2023. http://dx.doi.org/10.46793/upssxi.753t.

Texto completo da fonte
Resumo:
In this paper the author analyzes the topic related to employees’ participation in decision making process from the aspect of the partnership of labor and capital in corporate management and creation of new value, as well as from the aspect of corporate regulations which provide the framework for establishing the partnership relations between labor and capital. The national legislations of the majority of European countries allow the participations of workers’ representatives in one-tier or two-tier board of governance. Corporate practice reflects a disbalance between formal management rights which the workers’ representatives have based on law and their actual influence on making strategic decisions in their company. In European countries we can see a prevailing compromise between labor and capital which secures a long-term business strategy and stability of job positions. The participations of workers’ representatives in the board of governance should be distinguished from the union activities since there can be a conflict of interest between the union and company’s management bodies. Global regrouping and European integrations have brought into focus the economic and political power of states and companies, while the workers’ and other stakeholders’ interests are of less importance.
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Chaiko, Inna L. "Regulatory Legal Framework for Applying AI in the Higher Education System of Russia". In Advances in Educational Technologies and Instructional Design, 213–28. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-5518-3.ch010.

Texto completo da fonte
Resumo:
This research addresses the regulatory legal framework for applying AI in the higher education system of Russia. It examines established legal acts and proposed initiatives and documents related to Russian standardization and certification in the field of AI. The topic's relevance is underscored by the rapid development of AI. The research also reviews strategic documents that outline trends in the development of AI within the education sector. The author employs legal acts, proposed initiatives, and documents from Russian standardization and certification as the methodological foundation. Moreover, the author employs scientific and practical works by Russian and international scholars on the application of AI education. To explore the research topic, the author uses general scientific and special scientific methods. The results of this research can be valuable to representatives of federal and regional government bodies managing the education sector, including higher education, as well as to specialists and researchers interested in AI.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Battersby, Doug. "Eimear McBride’s Bodily Forms". In Troubling Late Modernism, 217–51. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192863331.003.0007.

Texto completo da fonte
Resumo:
Abstract Chapter 6 examines how Eimear McBride has dazzlingly reinvented stream of consciousness techniques to describe acts of sexual violence and exploitation from the perspective of their victims. In interviews and essays, McBride has openly acknowledged the influence of James Joyce’s Ulysses (1922), though, like other late modernists, she has also found fault with the verisimilitude of its interior monologues, specifically lamenting their putative neglect of bodily affect. This chapter’s reading of McBride’s most accomplished novel, The Lesser Bohemians (2016), highlights how this startling prose exploits the first-person present-tense narration popularized by J. M. Coetzee, the syntactical ambiguity and unorthodox punctuation employed by Samuel Beckett (whilst abandoning his commitment to grammatical resolution), and McBride’s own corporeal modes of affective description. It argues that these formal innovations are central to the novel’s representation of the deep-rooted effects of sexual abuse on its victims’ emotional lives, through which McBride explores the kind of philosophical questions about subjectivity, affect, and ethics that have long animated late modernist aesthetics. McBride’s narration of the body and meta-fictional dramatizations of the unpredictable ways in which we can be affected by other people’s narratives together present us with a writer who is at once cautious about the inherent emotional and ethical virtues of late modernist forms and emphatic about their continued necessity for conveying intensities of erotic experience that exceed the bounds of both realist and modernist narration.
Estilos ABNT, Harvard, Vancouver, APA, etc.

Trabalhos de conferências sobre o assunto "Employee representative bodies"

1

Цыкора, Анна, Anna Tsykora, Екатерина Суколенко e Ekaterina Sukolenko. "ANALYSIS OF THE SYSTEM OF GOVERNMENT ENTERPRISE MANAGEMENT ORGANS". In Modern problems of an economic safety, accounting and the right in the Russian Federation. AUS PUBLISHERS, 2018. http://dx.doi.org/10.26526/conference_article3011.

Texto completo da fonte
Resumo:
The article considers a brief analysis of the management bodies of a state unitary enterprise by referring to the legislation in terms of the new for Russian law wording that bodies, employees and representatives of a legal entity act as a representative as an additional body for the management of state enterprises.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Valderrama-Rodríguez, Juan Ignacio, José M. Rico, J. Jesús Cervantes-Sánchez e Fernando Tomás Pérez-Zamudio. "A New Look to the Three Axes Theorem". In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97443.

Texto completo da fonte
Resumo:
Abstract This paper analyzes the well known three axes theorem under the light of the Lie algebra se(3) of the Euclidean group, SE(3) and the symmetric bilinear forms that can be defined in this algebra. After a brief historical review of the Aronhold-Kennedy theorem and its spatial generalization, the main hypothesis is that the general version of the Aronhold-Kennedy theorem is basically the application of the Killing and Klein forms to the equation that relates the velocity states of three bodies regardless if they are free to move in the space, independent of each other, or they form part of a kinematic chain. Two representative examples are employed to illustrate the hypothesis, one where the rigid bodies are free to move in the space without any connections among them and other concerning a RCCC spatial mechanism.
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Silva, Mariana O., Luiza de Melo-Gomes e Mirella M. Moro. "Gender Representation in Literature: Analysis of Characters' Physical Descriptions". In Symposium on Knowledge Discovery, Mining and Learning. Sociedade Brasileira de Computação - SBC, 2023. http://dx.doi.org/10.5753/kdmile.2023.232571.

Texto completo da fonte
Resumo:
This study employs Natural Language Processing (NLP) techniques to quantitatively analyze the descriptions of male and female body parts in Portuguese literature. We investigate these descriptions' frequency, specificity, and objectification by examining a corpus of literary works. The results indicate distinct differences in how male and female bodies are portrayed, revealing evidence of gender bias in the choice of specific descriptors for body parts. This research contributes to the ongoing discourse surrounding gender representation in literature, shedding light on the potential biases in textual descriptions. Furthermore, it underscores the significance of NLP techniques in uncovering patterns within literary texts, providing valuable insights into data mining. Through this analysis, we deepen our understanding of gender dynamics within literary works and foster critical discussions on representation in literature.
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

VOINEA, Carmen. "THE DISCOURSE OF COSMETIC SURGEONS AS THERAPISTS IN A PRIVATE MEDICAL MARKET: SOCIAL MEDIA REPRESENTATIONS". In International Management Conference. Editura ASE, 2022. http://dx.doi.org/10.24818/imc/2021/05.07.

Texto completo da fonte
Resumo:
Drawing on thematic content analysis, this paper explores the legitimation repertoires employed by Romanian cosmetic surgeons in their in social media (Instagram) discourse. I argue that the main themes they use derive from their legitimation as psychotherapists operating for the well-being of their patients, and from their position of private medical services providers. Firstly, as surgeons need to reconcile their medical profession with the profit motive, their social media representations consist of their being shown in the avant-garde of progress as medical, and technical innovators. Their representation as innovators is legitimated as ultimately being beneficial for the patients’ surgical transformation. Secondly, their legitimation of the surgical interventions on healthy bodies draws its foundation from the psychological domain. The cosmetic surgery interventions are presented as being performed for the psychological well-being of the patient. Another dynamic that underlies this process is the pathologization of women’s bodies, in which traditionally surgeons play an important role on account of their power derived from their scientific authority. Lastly, in the context of a neoliberal consumer society, women have become informed-patient consumers. This development informs the legitimation repertoires of surgeons who willingly share their expertise with their patients. Consequently, their social media posts consist of content in which they aim to educate their audience by sharing various medical and technical aspects.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Wei, Cheng, Liang Wang e Ahmed A. Shabana. "A Total Lagrangian ANCF Liquid Sloshing Approach for Multibody System Applications". In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46207.

Texto completo da fonte
Resumo:
The objective of this investigation is to develop a total Lagrangian non-incremental liquid sloshing solution procedure based on the finite element (FE) absolute nodal coordinate formulation (ANCF). The proposed liquid sloshing modeling approach can be used to avoid the difficulties of integrating most of fluid dynamics formulations, which are based on the Eulerian approach, with multibody system (MBS) dynamics formulations, which are based on a total Lagrangian approach. The proposed total Lagrangian FE fluid dynamics formulation, which can be systematically integrated with computational MBS algorithms, differs significantly from the conventional FE or finite volume methods which are based on an Eulerian representation that employs the velocity field of a fixed control volume in the region of interest. The ANCF fluid equations are expressed in terms of displacement and gradient coordinates of material points, allowing for straight forward implementation of kinematic constraint equations and for the systematic modeling of the interaction of the fluid with the external environment or with rigid and flexible bodies. The fluid incompressibility conditions and surface traction forces are considered and derived directly from the Navier Stokes equations. Two ANCF brick elements, one is obtained using an incomplete polynomial representation and the other is obtained from a B-spline volume representation, are used. The new approach ensures the continuity of the displacement gradients at the nodal points and allows for imposing higher degree of continuity across the element interface by applying algebraic constraint equations that can be used to eliminate dependent variables and reduce the model dimensionality. Regardless of the magnitude of the fluid displacement, the fluid has a constant mass matrix, leading to zero Coriolis and centrifugal forces. The analysis presented in this paper demonstrates the feasibility of developing an efficient non-incremental total Lagrangian approach for modeling sloshing problems in MBS system applications in which the bodies can experience large displacements including finite rotations. Several examples are presented in order to shed light on the potential of using the ANCF liquid sloshing formulation developed in this study.
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Chen, Mingqiang, Qingping Li, Shouwei Zhou, Weixin Pang, Xin Lyu, Junlong Zhu, Qiang Fu, Chaohui Lyu e Yang Ge. "Dynamic Characterization of Pore Structures in Hydrate-Bearing Sediments During Hydrate Phase Transition". In SPE Annual Technical Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/214854-ms.

Texto completo da fonte
Resumo:
Abstract Natural gas hydrate widely distributed in marine sediments and permafrost has brought great attention due to its large reserves. Unlike conventional reservoirs, the effective pore structures vary from time and space due to hydrate dissociation and secondary formation in the development, which produces significant impacts on gas flow and production. Therefore, figuring out the evolution of dynamic pore structures is of great importance for the efficient development of hydrate deposits. In this work, excess-water hydrate formation method was combined with micro-computed tomography to study hydrate transition effects on the evolution of dynamic pore structures. Gas state equation and chemical reaction dynamics were combined for separating the representative 3D images at different stages of hydrate formation into four phases, which are respectively hydrate, water, gas and solid skeleton. Hydrate pore habit evolution, formation characteristics, spatial distribution heterogeneity and its effect on the effective porosity variation were studied in detail. Afterwards, a modified maximal ball method was employed to extract hydrate-bearing pore networks at different stages of hydrate phase transition. Hydrate phase transition effects on the effective pore and throat radii distributions, pore and throat cross-sections, throat lengths and distance among connected pore bodies, as well as pore topology were further investigated based on the extracted networks. Results show that hydrate pore habit varies in porous media during hydrate formation with the main pore habit of pore filling mode. Hydrate spatial distribution exhibits some heterogeneity, causing diverse hydrate saturation at different layers during hydrate phase transition. Hydrate disrupted pore integrity to some extent, resulting in more extracted pore bodies and throats with increased hydrate saturation. In addition, hydrate phase transition reduces pore-throat radii and distribution regularity to different degrees, and results in more irregular pore-throat morphology, decrease of throat length and distance among connected pore bodies as well as poorer connectivity at the same time. This study provides a novel insight in better understanding the evolution of dynamic pore structures and lays a good foundation for the effective development of natural gas hydrate deposits.
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Wu, Kuangcheng, e Jerry H. Ginsberg. "Progress in Applying the Surface Variational Principle to Analyze Acoustic Radiation From Slender Elastic Bodies". In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0408.

Texto completo da fonte
Resumo:
Abstract The surface variational principle (SVP) has been developed as a method for gaining analytical-type results for radiation and scattering from submerged bodies whose shape does not suit classical techniques for analyzing the Helmholtz equation. The approach employs Ritz series expansions for surface pressure and velocity in the frequency domain. The relation between the series coefficients is obtained by extremizing the SVP functional. The present work extends the earlier developments to the case of an axisymmetric elastic shell that is subjected to an arbitrary excitation. The surface pressure and normal velocity are represented as a sequence of surface waves that are the trace of the waves in the surrounding fluid medium. SVP is used to determine the wavenumber spectrum of pressure amplitudes generated by a specific wave having unit velocity amplitude. The structural displacement field is represented by Ritz expansions, and equations governing the generalized coordinates associated with these series are obtained by invoking Hamilton’s principle. Difficulties in satisfying the continuity conditions at the apexes are circumvented by mapping the eigenmodes for a spherical shell into the variable representing position along the meridian of the shape generator. The structural dynamic equations are coupled to the SVP equations by matching the normal velocity in the fluid to the time derivative of the normal displacement, as well as using the series expansion for surface pressure to form the contribution of the pressure to the generalized forces. Results for a spherical shell subjected to a trans erse point force at the equator, which is a nonaxisymmetric representation of the excitation, are compared with analytic results. Predictions for a hemi-capped cylindrical shell are compared to those obtained from SARA-2D (Allik, 1991), which is a finite/infinite element program. In addition to providing validation of the SVP implementation, each set of results is used to illustrate the convergence and error measures provided by an SVP analysis.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Shabana, Ahmed A., e Aki M. Mikkola. "Modeling of Slope Discontinuities in Flexible Body Dynamics Using the Finite Element Method". In ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/detc2002/dac-34094.

Texto completo da fonte
Resumo:
A large rigid body rotation of a finite element can be described by changing the definition of the axes of the element coordinate system or by keeping the axes unchanged and change the slopes or the position vector gradients. In the first method, the definition of the local element parameters (spatial coordinates) changes with respect to a body or a global coordinate system. The use of this method will always lead to a nonlinear mass matrix and non-zero centrifugal and Coriolis forces. The second method, in which the axes of the element coordinate system do not rotate with respect to the body or the global coordinate system, leads to a constant mass matrix and zero centrifugal and Coriolis forces when the absolute nodal coordinate formulation is used. This important property remains in effect even in the case of flexible bodies with slope discontinuities. The concept employed to accomplish this goal resembles the concept of the intermediate element coordinate system previously adopted in the finite element floating frame of reference formulation. It is shown in this paper that the absolute nodal coordinate formulation that leads to exact representation of the rigid body dynamics can be effectively used in the analysis of complex structures with slope discontinuities.
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Schuhmacher, Jonas, Fabio Gratl, Dario Izzo e Pablo Gómez. "Investigation of the Robustness of Neural Density Fields". In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-067.

Texto completo da fonte
Resumo:
Recent advances in modeling density distributions, so-called neural density fields [1], can accurately describe the density distribution of even irregular celestial bodies, such as asteroids and comets. This representation has several advantages as it relies on no prior information, converges even inside the Brillouin sphere, and is extensible to heterogeneous density distributions of the celestial bodies [1,2]. The accurate knowledge about the density representation of a body is of crucial interest in several fields. For example, spacecraft operations in close proximity to these bodies require this knowledge to be capable of designing safe and efficient trajectories [3]. However, there are open questions in terms of the robustness of this approach with regard to several factors. Previous work utilized a synthetic gravity signal generated with a mascon model as ground truth [1] or measured data from the OSIRIS-REx mission for the asteroid Bennu [4] to train these neural density fields. Further, the influence of other perturbations (e.g. solar radiation pressure), noise and a potentially weak gravitational signal depending on distance warrant further study. Here, we perform a detailed study of these factors, further investigating the capabilities and robustness of neural density fields. As mascon models discretize the body into point masses, their application is accompanied by the appearance of inaccuracy, especially close to the surface inside the Brillouin sphere. The present work resolves this by using the polyhedral gravity model using the line integral approach capable of analytically computing the gravity tensor given a polyhedral mesh assuming homogeneous density [5, 6]. Herewith, this work presents the obtainable precision of whether a mascon or polyhedral ground truth is used for training the neural network and if the polyhedral model can eliminate errors in the surface region, given its smoother analytical form. Further, we explore the robustness against noise when training the neural network. Noise can appear due to multiple sources like numerical errors of the numerical integration of the gravitational triple integral, measurement errors or due to limited sampling of the volume given spacecraft trajectories. Second, it can result from non-gravitational accelerations like the Yarkovsky effect or solar radiation pressure (suspected to have affected the measurements of [4]). Hence, we investigate the effects of noise in the measurements, adding systematic and random noise to the training data in order to present its impact when compared to training without it. Results are presented in terms of absolute and relative errors but also visually explored in representations of the neural density field and acceleration errors. Another central question is how sparse or weak the gravitational signal can be. This is especially a problem during the approach to the body where – due to distance – the gravitational signal is close to a spherical/ point mass, and any irregularities are more challenging to find. Here, we present different sampling strategies given different distance thresholds and we study the resulting precision while also taking propagated orbits for the sampling process into account. This provides an essential insight into whether neural density fields could be employed in a specific mission scenario or whether the gravitational signal is insufficient. For detailed and robust results, we compare these aspects on several celestial bodies, including 67P Churyumov-Gerasimenko, 433 Eros, 101955 Bennu and 25143 Itokawa. Overall, we thus take the next step on bringing neural density fields to an onboard mission scenario, where they can be a useful and potent tool complementing existing approaches such as polyhedral or mascon models. All data and code used for the study are available online. References: [1] Izzo, D. and Gómez, P., 2021. Geodesy of irregular small bodies via neural density fields: geodesyNets. arXiv preprint arXiv:2105.13031. [2] Cui, Pingyuan, and Dong Qiao. "The present status and prospects in the research of orbital dynamics and control near small celestial bodies." Theoretical and Applied Mechanics Letters 4.1 (2014): 013013. [3] Leonard, J.M., Geeraert, J.L., Page, B.R., French, A.S., Antreasian, P.G., Adam, C.D., Wibben, D.R., Moreau, M.C. and Lauretta, D.S., 2019, August. OSIRIS-REx orbit determination performance during the navigation campaign. In 2019 AAS/AIAA Astrodynamics Specialist Conference (pp. 1-20). [4] von Looz, M., Gómez, P. and Izzo, D., 2021. Study of the asteroid Bennu using geodesyANNs and Osiris-Rex data. arXiv preprint arXiv:2109.14427. [5] Tsoulis, D., 2012. Analytical computation of the full gravity tensor of a homogeneous arbitrarily shaped polyhedral source using line integrals. Geophysics, 77(2), pp.F1-F11. [6] Tsoulis, D. and Gavriilidou, G., 2021. A computational review of the line integral analytical formulation of the polyhedral gravity signal. Geophysical Prospecting, vol. 69, no. 8-9, pp. 1745–1760.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Ávila, Antonio F. "An Integrated Micro/Macro Approach for Structural Analysis of Laminate Composites With Applications to Turbine Blades". In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0550.

Texto completo da fonte
Resumo:
Abstract An integrated micro/macro mechanical procedure for structural analysis of unidirectional metal matrix composites is proposed. The micromechanical analysis is performed via the Composite Cylinder Assemblage model (CCA) or the Representative Volume Element approach (RVE). The macroscopic stress-strain relation is based on a modification of the Vanishing Fiber Diameter theory (VFD), and the concept of “smeared” finite element. The fibers are considered to be linear elastic, and the matrix viscoplastic behavior is described by the Bodner and Partom model. The overall composite behavior is assumed to be elastic-viscoplastic. Two types of material systems are employed, namely, SCS-6/Ti-15-3 and SCS-6/Tiβ21-S. Both set of material systems exhibit isotropic and/or kinematic hardening under specific conditions of temperature and loading. The proposed methodology is validated with experimental and analytical results available in the literature. After the validation process, this methodology is applied to a 3-D finite element model of a [0/90]2s SCS-6/Tiβ21-S turbine blade tip. Aerodynamic and centrifugal loading are considered acting at the same time. The turbine blade tip inelastic strain field is presented.
Estilos ABNT, Harvard, Vancouver, APA, etc.
Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!

Vá para a bibliografia