Design of an integrated airframe/propulsion control system architecture

The design of an integrated airframe/propulsion control system architecture is described. The design is based on a prevalidation methodology that uses both reliability and performance. A detailed account is given for the testing associated with a subset of the architecture and concludes with general observations of applying the methodology to the architecture

Space electric power systems study- d-c to d-c converters for nuclear-thermionic energy sources

Direct current converters used in space electric power system for nuclear-electric power suppl

A log mining approach for process monitoring in SCADA

SCADA (Supervisory Control and Data Acquisition) systems are used for controlling and monitoring industrial processes. We propose a methodology to systematically identify potential process-related threats in SCADA. Process-related threats take place when an attacker gains user access rights and performs actions, which look legitimate, but which are intended to disrupt the SCADA process. To detect such threats, we propose a semi-automated approach of log processing. We conduct experiments on a real-life water treatment facility. A preliminary case study suggests that our approach is effective in detecting anomalous events that might alter the regular process workflow

AOIPS 3 user's guide. Volume 2: Program descriptions

The Atmospheric and Oceanographic Information Processing System (AOIPS) 3 is the version of the AOIPS software as of April 1989. The AOIPS software was developed jointly by the Goddard Space Flight Center and General Sciences Corporation. A detailed description of very AOIPS program is presented. It is intended to serve as a reference for such items as program functionality, program operational instructions, and input/output variable descriptions. Program descriptions are derived from the on-line help information. Each program description is divided into two sections. The functional description section describes the purpose of the program and contains any pertinent operational information. The program description sections lists the program variables as they appear on-line, and describes them in detail

A model-based reasoning approach to sensor placement for monitorability

An approach is presented to evaluating sensor placements to maximize monitorability of the target system while minimizing the number of sensors. The approach uses a model of the monitored system to score potential sensor placements on the basis of four monitorability criteria. The scores can then be analyzed to produce a recommended sensor set. An example from our NASA application domain is used to illustrate our model-based approach to sensor placement

Design, control and evaluation of a low-cost active orthosis for the gait of spinal cord injured subjects

Robotic gait training after spinal cord injury is of high priority to maximize independence and improve the living conditions of the patients. Current rehabilitation robots are expensive and heavy, and are generally found only in the clinical environment. To overcome these issues, we present the design of a low-cost, low-weight and personalized robotic orthosis for incomplete spinal cord injured subjects. The paper also presents a preliminary experimental evaluation of the assistive device on one subject with spinal cord injury that can control hip flexion to a certain extent, but lacks control of knee and ankle muscles. Results show that gait velocity, stride length and cadence of walking increased (24,11%, 7,41% and 15,56%, respectively) when wearing active orthoses compared to the case when the subject used the usual passive orthoses.Postprint (published version

Comunicación publicitaria: construcción de potencial de significado a través de la gramática disyuntiva

Communication through language, irrespective of the model of its structure and deployment, entails the making of meanings. The ways that advertisers produce meaning through disjunctive grammar is the concern of this study. Thus, the analysis considered twelve advertisements for examination for meaning deductions. The Hallidayan ‘below the clause’ was the conceptual facilitator of meanings in texts. With the application of technological tools of the table and graph, the study drew a conclusion that nominal group (NG) is the most employed device to fascinate readers to consumption. Having observed that advertisers utilize health matters, beliefs and values, monetary gifts, contents of commodities, etc. to persuade consumers, the study suggests that advertisements could assist in revealing the true contents of the advertised products for proper decision making on the products to patronize. Such behavior could also sensitize the public from being recalcitrant to reading advertising artifacts which is a gain to advertisers themselves. Qualquer que seja o modelo que guie sua estrutura e desenvolvimento, a comunicação por meio da linguagem implica a criação de significados. Os publicistas parecem entender que a criação de significado na comunicação com o público-alvo não precisa depender da cláusula ou da oração. As produções de significado podem ser mordazes e com estruturas fragmentadas; com isso, o estudo que deu origem ao presente artigo interessou-se pela forma como os especialistas em publicidade produzem significado por meio da gramática disjuntiva. Analisaram-se doze anúncios de bebidas e telecomunicações, a fim de explicar os significados. O conceito de “cláusula dependente”, estabelecido por Halliday, foi o facilitador conceitual dos significados nos textos. O uso de ferramentas tecnológicas como tabelas e gráficos ajudou a calcular as frequências das instalações disjuntivas dos textos. Chegou-se à conclusão de que a frase nominal é o dispositivo mais empregado para interessar os leitores no consumo. Tendo-se observado que os anunciantes utilizavam assuntos de saúde, crenças e valores, presentes monetários, conteúdos de produtos básicos, globalização etc. para persuadir os consumidores, o estudo sugeriu que os anúncios poderiam seguir empregando construções com signos de pontuação para revelar os verdadeiros conteúdos dos produtos anunciados, de tal forma que tomassem as decisões adequadas ao favorecê-los. Tal comportamento de implantação disjuntiva também poderia levar o público a ler materiais publicitários no lugar de recusá-los, portanto, de uma maneira ou de outra, convencer o público é o objetivo real da persuasão na publicidade.Cualquiera que sea el modelo que guíe su estructura y desarrollo, la comunicación a través del lenguaje implica la creación de significados. Los publicistas parecen entender que la creación de significado en la comunicación con el público objetivo no necesita depender de la cláusula o dea la oración. Las producciones de significado pueden ser mordaces y con estructuras fragmentadas; con esto, el estudio que dio origen al presente artículo se interesó por la forma en que los expertos en publicidad producen significado a través de la gramática disyuntiva. Se analizaron doce anuncios de bebidas y telecomunicaciones, en aras de explicar los significados. El concepto de “debajo de la cláusula”, acuñado por Halliday, fue el facilitador conceptual de los significados en los textos. El uso de herramientas tecnológicas como tablas y gráficos ayudó a calcular las frecuencias de las instalaciones disyuntivas de los textos. Se llegó a la conclusión de que la frase nominal es el dispositivo más empleado para interesar a los lectores en el consumo. Habiéndose observado que los anunciantes utilizaban asuntos de salud, creencias y valores, regalos monetarios, contenidos de productos básicos, globalización, etc. para persuadir a los consumidores, el estudio sugirió que los anuncios podrían seguir empleando construcciones con signos de puntuación para revelar los verdaderos contenidos de los productos anunciados, de tal forma que se tomaran las decisiones adecuadas al favorecerlos. Tal comportamiento de despliegue disyuntivo también podría llevar al público a leer materiales publicitarios en lugar de rechazarlos, en tanto que, de una manera u otra, convencer al público es el objetivo real de la persuasión en la publicidad.https://revistas.udem.edu.co/index.php/anagramas/article/view/215