A viral system algorithm to optimize the car dispatching in elevator group control systems of tall buildings

Nowadays is very common the presence of tall buildings in the business centres of the main cities of the world. Such buildings require the installation of numerous lifts that are coordinated and managed under a unique control system. Population working in the buildings follows a similar traffic pattern generating situations of traffic congestion. The problem arises when a passenger makes a hall call wishing to travel to another floor of the building. The dispatching of the most suitable car is the optimization problem we are tackling in this paper. We develop a viral system algorithm which is based on a bio-inspired virus infection analogy to deal with it. The viral system algorithm is compared to genetic algorithms, and tabu search approaches that have proven efficiency in the vertical transportation literature. The experiments undertaken in tall buildings from 10 to 24 floors, and several car configurations from 2 to 6 cars, provide valuable results and show how viral system outperforms such soft computing algorithms.Plan Estatal de Investigación Científica y Técnica y de Innovación (España

Una revisión del estado del arte de los problemas asociados al transporte vertical mediante ascensores en edificios

El transporte vertical es una disciplina que estudia los movimientos de personas en edificios. Los edificios altos se han convertido en una construcción común hoy en día. En dichos edificios, el transporte vertical es un problema que requiere un enfoque sistemático y ordenado. Así, para casos extremos en determinados edificios singulares, la ordenación del transporte vertical se convierte en un problema muy difícil de manejar, especialmente cuando diferentes personas llegan casi al mismo tiempo a plantas específicas deseando viajar hasta otras plantas de destino. Para resolver tales situaciones, la instalación de sistemas de control de grupos de ascensores (conocidos en inglés como Elevator Group Control Systems, EGCS) es una práctica habitual. Los EGCS se utilizan para gestionar ascensores coordinados múltiples en un edificio con el objeto de transportar pasajeros de manera eficiente. Los EGCS deben satisfacer las demandas asignando un ascensor a cada llamada de planta, realizando el despacho de ascensores atendiendo a diferentes criterios de optimización. Este artículo realiza una revisión sistemática y muestra distintas clasificaciones de las contribuciones más relevantes en la industria del transporte vertical, abordando tanto la revisión de la literatura científica, como las patentes en la industria y los trabajos recogidos en revistas de carácter profesional.Plan Nacional de I+D TI-331/2002Plan Nacional de I+D DPI2010- 15352Consejería de Innovación, Ciencia y Empresa de la Junta de Andalucía P07-TEP-0283

Implementing and Testing the APEX I/O Scheduler in Linux

This thesis seeks to test an implementation of the APEX I/O scheduler to see how it compares to modern schedulers and whether it better serves mixed-media workloads. APEX is a scheduling framework that seeks to provide deterministic guarantees for storage service to applications. The implementation is done in Linux, a modern open source operating system kernel that includes a loadable scheduler framework. The implementation compares favorably with the existing schedulers on Linux, despite problems inherent in the assumptions made in the design of mixed-media schedulers about modern operating system environments

Effectiveness indices evaluating time in physical education: Example in Motor Games

The time devoted to Physical Education classes is limited, but for many children and young people these classes are the only occasions on which they engage in physical activity and exercise. Since exercise is vital for health, it is important to use indices that provide information about the effectiveness of time invested specifically in the practice of motor activities during PE classes. We have proposed certain effectiveness indices that relate the time planned to the time actually spent in different categories: time for information, time for organisation, time for physical or motor activity and time for physical or motor activity fulfilling an objective. Various sessions of Motor Games have been evaluated, all of them corresponding to the university degree of Physical Activity and Sports Sciences. The results show that the proposed effectiveness indices could be very useful in managing time devoted to motor activity during PE lessons more effectively and in improving time planning in terms of the content of PE lessons

The bridge of dreams::Towards a method for operational performance alignment in IT-enabled service supply chains

Concerns on performance alignment, especially on business-IT alignment, have been around for three decades. It is still considered to be one of the most important driving forces for business success, as well as one of the top concerns of many practitioners and organizational researchers. It is also found to be a major issue in two thirds of digital transformation projects. Many attempts from researchers in diverse disciplines have been made to tackle this issue. Unfortunately, they have been working separately and the research appears in various forms and names. This dissertation presents a piece of interdisciplinary research that focuses on identifying operational performance alignment issues, discovering and assessing their root causes with attention to the dynamics in operating IT-enabled service supply chain (SSC). It makes a modest contribution by providing a communication-centred instrument which can modularize complex SSC in terms of a hierarchically-structured set of services and analyze the performance causality between them. With a special focus on the impact of IT, it makes it possible to monitor and tune various performance issues in SSC. This research intends to provide a solution-oriented common ground where multiple service research streams can meet together. Following the framework proposed in this research, services, at different tiers of an SSC, are modelled with a balanced perspective on both business, technical service components and KPIs. It allows a holistic picture of service performances and interactions throughout the entire supply chain to be viewed through a different research lens and permits the causal impact of technology, business strategy, and service operations on supply chain performance to be unveiled

Solutions to decision-making problems in management engineering using molecular computational algorithms and experimentations

制度:新 ; 報告番号:甲3368号 ; 学位の種類:博士(工学) ; 授与年月日:2011/5/23 ; 早大学位記番号:新568

Smart Manufacturing

This book is a collection of 11 articles that are published in the corresponding Machines Special Issue “Smart Manufacturing”. It represents the quality, breadth and depth of the most updated study in smart manufacturing (SM); in particular, digital technologies are deployed to enhance system smartness by (1) empowering physical resources in production, (2) utilizing virtual and dynamic assets over the Internet to expand system capabilities, (3) supporting data-driven decision-making activities at various domains and levels of businesses, or (4) reconfiguring systems to adapt to changes and uncertainties. System smartness can be evaluated by one or a combination of performance metrics such as degree of automation, cost-effectiveness, leanness, robustness, flexibility, adaptability, sustainability, and resilience. This book features, firstly, the concepts digital triad (DT-II) and Internet of digital triad things (IoDTT), proposed to deal with the complexity, dynamics, and scalability of complex systems simultaneously. This book also features a comprehensive survey of the applications of digital technologies in space instruments; a systematic literature search method is used to investigate the impact of product design and innovation on the development of space instruments. In addition, the survey provides important information and critical considerations for using cutting edge digital technologies in designing and manufacturing space instruments

Metodologia para planejamento e gerenciamento de tempo em Jogos Motorizados

Introducción: La planificación y gestión del tiempo en la enseñanza es de vital importancia para conseguir el mayor tiempo de aprendizaje puesto que el tiempo de clase de enseñanza o entrenamiento es limitado. Este tiempo de en aprendizaje en Educación Física o sesiones de entrenamiento además es muy importante si pensamos que de la adecuada planificación y gestión del tiempo puede depender la mejoría en la salud de las personas que reciben la sesión al ocupar más tiempo realizando ejercicio. Objetivos: Implementar la evaluación del tiempo para la planificación y gestión del tiempo en juegos motores de dos formas diferentes realizando comentarios con intervalos temporales en grabaciones de juegos motores en Youtube y con la aplicación “Tiempo en Juegos Motores”. Material y métodos: Evaluación del tiempo con las herramientas Tiempo en Juegos Motores, y comentarios con intervalos temporales en Youtube de un juego motor realizado en grado en Ciencias de la Actividad Física y el deporte grabado subido a Youtube. Resultados y Discusión: Los resultados indican como el tiempo motor ha sido muy poco 5,16%, además de mostrar las grandes diferencias existentes en algunas categorías entre tiempo planificado y tiempo registrado, como por ejemplo el TM_P = 0:11:00 y el TM_R = 0:00:33, el TO_R supone el 39,69% de la sesión. Conclusiones: Los sistemas de registro del tiempo utilizados tanto con comentarios con intervalos temporales en Youtube como con la herramienta Tiempo en Juegos Motores han sido llevados a la práctica en la evaluación, planificación y gestión del tiempo en juegos motores, resultando unos sistemas de fácil utilización y de gran precisión en la medida, prácticos para Educación Física.Introduction: The planning and management of time in teaching is of vital importance to achieve the greatest learning time since the time of teaching or training class is limited. This time of learning in Physical Education or training sessions is also very important if we think that proper planning and time management can depend on the improvement of the health of the people who receive the session by spending more time exercising. Aims: To implement the evaluation of the time for the planning and management of time in motor games in two different ways by making comments with temporary intervals in recordings of motor games on YouTube and with the application "Time in Motor Games". Methods: Evaluation of the time with the tools Time in Games Motors, and comments with temporary intervals in YouTube of a motor game made in degree in Sciences of the Physical Activity and the recorded sport uploaded to Youtube. Results & Disscusion: The results indicate that the motor time was very little 5.16%, in addition to showing the great differences existing in some categories between planned time and recorded time, such as the TM_P = 0:11:00 and the TM_R = 0:00:33, the TO_R represents 39.69% of the session. Conclusions: The time recording systems used both with comments with time intervals on YouTube and with the tool Time in Games Motors have been put into practice in the evaluation, planning and management of time in motor games, resulting in user-friendly systems and of great precision in the measure, practical for Physical EducationIntrodução: Planejamento e gestão do tempo na educação é vital para a aprendizagem, desde que o tempo de aula de ensino ou de formação é limitada. Desta vez, a aprendizagem em sessões de educação ou treinamento físico também é muito importante se pensarmos na gestão de planejamento e tempo adequado pode depender da melhora na saúde de pessoas que recebem a sessão para passar mais tempo fazendo exercício. Objectivos: Implementar tempo de avaliação para o planejamento e tempo de motor de jogo de gerenciamento de duas maneiras diferentes comentando sobre gravações com intervalos de tempo jogos motor Youtube eo aplicativo "Time Jogos Motores". Material e Métodos: Ferramentas de avaliação de tempo com motores de Tempo Jogos e comentários sobre timeslots Youtube de um motor feito em grau em Ciências da Atividade Física e do Desporto enviados ao YouTube gravado jogo.. Resultados e Discussão: Os resultados indicam quanto tempo o motor tem sido inferior a 5,16%, e mostra grandes diferenças em algumas categorias entre período de tempo planejado e gravado, como TM_P = 0:11:00 e TM_R = 0:00:33, o TO_R representa 39,69% da sessão. Conclusões: O tempo sistemas de registo usado Ambos os comentários intervalos de tempo no YouTube com a ferramenta Time in motores de jogo têm sido postas em prática na avaliação, planejamento e gestão do tempo em jogos de motor, sistemas fáceis de usar, resultando e de grande precisão na medida, prática para Educação Física.Universidad de Granada. Grupo Investigación "Formación del Profesorado como mediador del conocimiento" (Hum238

Aeronautical Engineering. A continuing bibliography with indexes, supplement 156

This bibliography lists 288 reports, articles and other documents introduced into the NASA scientific and technical information system in December 1982

Benefits briefing notebook: The secondary application of aerospace technology in other sectors of the economy

Resource information on the transfer of aerospace technology to other sectors of the U.S. economy is presented. The contents of this notebook are divided into three sections: (1) benefit cases, (2) transfer overview, and (3) indexes. Transfer examples relevant to each subject area are presented. Pertinent transfer data are given. The Transfer Overview section provides a general perspective for technology transfer from NASA to other organizations. In addition to a description of the basic transfer modes, the selection criteria for notebook examples and the kinds of benefit data they contain are also presented