Coherent and semiclassical states in magnetic field in the presence of the Aharonov-Bohm solenoid

A new approach to constructing coherent states (CS) and semiclassical states (SS) in magnetic-solenoid field is proposed. The main idea is based on the fact that the AB solenoid breaks the translational symmetry in the xy-plane, this has a topological effect such that there appear two types of trajectories which embrace and do not embrace the solenoid. Due to this fact, one has to construct two different kinds of CS/SS, which correspond to such trajectories in the semiclassical limit. Following this idea, we construct CS in two steps, first the instantaneous CS (ICS) and the time dependent CS/SS as an evolution of the ICS. The construction is realized for nonrelativistic and relativistic spinning particles both in (2+1)- and (3+1)- dimensions and gives a non-trivial example of SS/CS for systems with a nonquadratic Hamiltonian. It is stressed that CS depending on their parameters (quantum numbers) describe both pure quantum and semiclassical states. An analysis is represented that classifies parameters of the CS in such respect. Such a classification is used for the semiclassical decompositions of various physical quantities.Comment: 35 pages, 2 figures. Some typos in (77), (101), and (135) corrected with respect to the published version. Results unchange

Dummy Cb sebagai Alat Simulator Kubikel untuk Pemeliharaan Preventif dan Korektif Guna Mengurangi Frekuensi Padam Penyulang 20 Kv (Aplikasi pada Sistem Scada 20 Kv Pt.pln (Persero) Apd Jateng & DIY)

Meira Dwi Primanto, Priyo Sasmoko, in paper dummy CB as cubicle simulator for preventive and corrective maintenance to reduce off frequency 20 KV feeders (20 KV scada system at APD Central Java and Yogyakarta) explain that in 2013, the APD PT.PLN Central Java and Yogyakarta are conducting integration to SCADA at 20 KV feeders in distribution substation. For the next stage has been installed SCADA maintenance should be done periodically. Maintenance can be planned or due to interference with the SCADA system. Maintenance is usually done by the team must perform SCADA Distribution feeder outages and transfer of the load. In the installation of equipment, SCADA team should get a working permit to shut down the feeder, and to transfer the load to another feeder, so that the work has to get permission. SCADA systems are already installed requires maintenance to keep the system reliability. When maintenance SCADA, feeders should be extinguished, whereas for medium voltage customers such as factories, hospitals, and airports should always be channeled electrical energy. Feeder outages and load Delegation KWH lost causes. To the authors attempt to provide solutions that can overcome the missing KWH with a tool innovations made. The author makes a tool such as a dummy circuit breaker simulator 20 KV cubicles. This tool serves Especially when employees perform maintenance or investigation SCADA Disorders, which aims for 20 KV feeders should not be extinguished when performing preventive and corrective maintenance. So the number of frequency of feeder outages can be reduced

Os diferentes tipos de resultados nas cooperativas

O objetivo desta comunicação consiste em identificar os tipos de resultados nas cooperativas, compreender o tratamento contabilístico dos mesmos e aferir se o normativo contabilístico em vigor permite evidenciar as especificidades daqueles. Deste modo, utilizando uma metodologia qualitativa, com recurso à análise de conteúdo e a uma análise empírica, procede-se a uma reflexão sobre o regime jurídico e contabilístico dos resultados das cooperativas em Portugal. A informação obtida mostra que o tratamento contabilístico dos resultados não está devidamente adequado à realidade das cooperativas, por duas razões: em primeiro lugar não são claramente identificáveis na lei os diferentes tipos de resultados; em segundo lugar, contata-se que os resultados nas cooperativas têm o mesmo tratamento contabilístico dos resultados nas sociedades comerciais, apesar das diferenças substanciais entre as formas jurídicas. De facto, o objetivo das cooperativas não se traduz na obtenção de um lucro, mas corresponde a um escopo mutualístico, uma vez que estas entidades visam, a título principal a satisfação das necessidades económicas e sociais dos seus membros. Por sua vez, as sociedades comerciais visam, a título principal, a obtenção do lucro. Em conformidade, defendemos a alteração do enquadramento contabilístico aplicável às cooperativas, para que dessa forma se evidencie o real objeto destas, designadamente o seu escopo mutualístico, e deste modo se diferencie nos documentos contabilísticos os diferentes tipos de resultados. Impõe-se designadamente uma contabilização separada dos resultados cooperativos e dos resultados extracooperativos e extraordinários. Esta contabilização separada é essencial desde logo por razões fiscais, uma vez que o regime fiscal aplicável a cada um dos tipos de resultados é diferenciado. A nível contabilístico, as demonstrações financeiras deveriam evidenciar os diferentes tipos de resultados, por forma a refletir a imagem verdadeira e apropriada do desempenho da cooperativa

Durability of concrete structures in marine atmosphere zones – The use of chloride deposition rate on the wet candle as an environmental indicator

Durability of concrete structures under marine environments has been studied for a long time. This work was focused on marine atmosphere zone and studied the deposition of chlorides on wet candle devices and its relation with chlorides accumulated into concrete. Concrete specimens with three different mixtures were exposed at places located at four different distances from the sea. Periodically, chloride profiles were obtained and analysed taking into account environmental data. Results of numerical extrapolations show that chloride deposition rate on the wet candle can be used as an environmental indicator, helping to preview the expectancy of service life of concrete structures or suggesting minimum concrete cover thicknesses for a required service life. Regarding the studied region, service life decreases between 30% and 60% were observed when changing chloride deposition from 120 mg/m2 day to 500 mg/m2 day, which shows that chloride deposition plays an important role as an environmental indicator on service-life analysis of concrete structures in marine atmosphere zone

Accountability and Transparency in Cooperatives: A Comparative Analysis between Portugal and Germany

Este estudio pretende evaluar si la legislación sobre mecanismos de supervisión interna y externa vigente para las cooperativas alemanas permite un nivel de rendición de cuentasy transparencia más adecuados en términos de información financiera en comparación con el modelo adoptado en Portugal. Para ello, y a través de una metodología cualitativa, utilizando la técnica de análisis de contenido y el modelo de estudio de casos múltiples, se construyeron índices de cumplimiento total y parcial por país para evaluarla transparencia y la rendición de cuentasde las cooperativas en la muestra seleccionada. Los resultados obtenidos muestran que las cooperativas analizadas presentan un índice de cumplimiento superior al 50% en todas las categorías seleccionadas. Sin embargo, en todas las categorías, las cooperativas alemanas presentan un porcentaje mayor que las portuguesas, lo cual nos permite concluir que el modelo alemán de supervisión interna y externa proporciona un mayor nivel de rendición de cuentasy transparencia.Palabras clave: Cooperativa; Información financiera; Consejo de Supervisión; Federación de Auditores.his study aims to assess whether the legislation on internal and external supervisory mechanisms in force for German cooperatives allows for a more adequate accountability and transparency in terms of financial reporting compared to the model adopted in Portugal. For this purpose, and through a qualitative methodology, using the content analysis technique and the multiple case study model, total and partial compliance indexes were constructed by country to assess the cooperatives' transparency and accountability in the selected sample. The results show that the analysed cooperatives present a compliance indexhigher than 50% in all the selected categories. However, in all categories, German cooperatives present a higher percentage than Portuguese cooperatives, thus leading to the main conclusion that the German model of internal and external supervision provides a higher level of accountability and transparency.info:eu-repo/semantics/publishedVersio

Reflections on the Accounting Framework of Public Interest Cooperatives in Portugal

The purpose of this chapter is to determine whether the current accounting standards of public interest cooperatives in Portugal are adequate, taking into account the social object, particularly the pursuit of furthering public interest and the nature of the subjects that integrate it. Thus, through the methodology of content analysis, the authors analyze the various policies and accounting legislation as well as the literature available on this topic. Through the classification and analysis of the main characteristics of these cooperatives, the authors conclude that they should be subject to the Public Administration's accounting regime in order to respond to the needs of different users of information.info:eu-repo/semantics/publishedVersio

Implantação do Armazém de Dados da Fruticultura: versão 1.2.

Novidades e diferenças da versão 1.2. Requisitos de software. Implantando o armazém de dados da floticultura. Importando o aquivo com o esquema de banco de dados.bitstream/CNPTIA/10055/1/doc30.pdfAcesso em: 29 maio 2008

Implantação do armazém de dados da fruticultura no Ministério da Agricultura, Pecuária e Abastecimento.

Infra-estrutura de Software necessária. Implantando o armazém de dados da fruticultura: criando e configurando usuários e atribuição; importando o arquivo exportado com o esquema do Armazém de Dados da Fruticultura; renovando os sumários do Armazém de Dados da Fruticultura.bitstream/CNPTIA/9201/1/INSTRTECNICAS8int.pdfAcesso em: 30 maio 2008