653 research outputs found
Fifteen-foot diameter modular space station Kennedy Space Center launch site support definition (space station program Phase B extension definition)
This document defines the facilities, equipment, and operational plans required to support the MSS Program at KSC. Included is an analysis of KSC operations, a definition of flow plans, facility utilization and modifications, test plans and concepts, activation, and tradeoff studies. Existing GSE and facilities that have a potential utilization are identified, and new items are defined where possible. The study concludes that the existing facilities are suitable for use in the space station program without major modification from the Saturn-Apollo configuration
Storage and Analysis of Big Data Tools for Sessionized Data
The Oracle database currently used to mine data at PEGGY is approaching end-of-life and a new infrastructure overhaul is required. It has also been identified that a critical business requirement is the need to load and store very large historical data sets. These data sets contain raw electronic consumer events and interactions from a website such as page views, clicks, downloads, return visits, length of time spent on pages, and how they got to the site / originated.
This project will be focused on finding a tool to analyze and measure sessionized data, which is a unit of measurement in web analytics that captures either a user\u27s actions within a particular time period, or the process of segmenting user activity of each user into sessions, each representing a single visit to the site. This sessionized data can be used as the input for a variety of data mining tasks such as clustering, association rule mining, sequence mining etc (Ansari. 2011) This sessionized data must be delivered in a reorganized and readable format timely enough to make informed go-to-market decisions as it relates to the current and existing industry trends. It is also pertinent to understand any development work required and the burden on the resources.
Legacy on-premise data warehouse solutions are becoming more expensive, less efficient, less dynamic, and unscalable when compared to current Cloud Infrastructure as a Service (IaaS) that offer real time, on-demand, pay-as-you-go solutions . Therefore, this study will examine the total cost of ownership (TCO) by considering, researching, and analyzing the following factors against a system wide upgrade of the current on-premise Oracle Real Application Cluster (RAC) System: High performance: real-time (or as close to as possible) query speed against sessionized data SQL compliance Cloud based or, at least a hybrid (read: on-premise paired with cloud) Security: encryption preferred Cost structure: cost-effective pay-as-you-go pricing model and resources required for the migration and operations.
These technologies analyzed against the current Oracle database are: Amazon Redshift Google Bigquery Hadoop Hadoop + Hive
The cost of building an on-premise data warehouse is substantial. The project will determine the performance capabilities and affordability of Amazon Redshift, when compared to other emerging highly ranked solutions, for running e-commerce standard analytics queries on terabytes of sessionized data. Rather than redesigning, upgrading, or over purchasing infrastructure at a high cost for an on-premise data warehouse, this project considers data warehousing solutions through cloud based infrastructure as a service (IaaS) solutions. The proposed objective of this project is to determine the most cost-effective high performer between Amazon Redshift, Apache Hadoop, and Google BigQuery when running e-commerce standard analytics queries on terabytes of sessionized data
Study of one-man lunar flying vehicle. Volume 6 - Resources and training plans Final report
Plans for detailed design, development, fabrication, and astronaut training for lunar flying vehicl
Proceedings of the 2nd Conference on Production Systems and Logistics (CPSL 2021)
Proceedings of the CPSL 202
Collaboration and integration through information technologies in supply chains
International audienceSupply chain management encompasses various processes including various conventional logistics activities, and various other processes These processes are supported – to a certain limit – by coordination and integration mechanisms which are long-term strategies that give competitive advantage through overall supply chain efficiency. Information Technology, by the way of collecting, sharing and gathering data, exchanging information, optimising process through package software, is becoming one of the key developments and success of these collaboration strategies. This paper proposes a study to identify the methods used for collaborative works in the supply chain and focuses on some of its areas, as between a company and its suppliers (i.e., inventory sharing) and its customers (i.e., customer demand, forecasting), and also the integration of product information in the value chain
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An evaluation of structures suitable for emergency storage in tropical countries (ODNRI Bulletin No. 10)
The bulletin provides technical, economic and managerial assessment of emergency storage systems. It is based on investigations conducted by ODNRI and on information provided by users from the World Food Programme and five relief agencies. Where the priority was provision of food shelters quickly and easily, with facilities for rapid relocation, users favoured a combination of tarpaulins, tents and plastic-covered metal frame structures . Where the priority was security/ease of management, traditional warehouses or frameless modular structures were superior, more permanent and had a lower annual cost after four years of use. In either case if stores could be provided locally this was generally preferable - for reasons of speed and economy - to provision of imported stores, of which there are a number of well-tested types. Part I of the bulletin provides background, research and tables showing operational comparisons, capital costs, procurement times, packed weights and annual costs for the main store types. Recommendations for research on design of stores capable of resisting tropical wind loads and on bumper crop storage are made. Part II summarizes the results in Part I and provides for users/donors/ governments: (a) a practical decision tree for choosing a store, (b) a method for calculating store capacity, and (c) a catalogue of suppliers giving product details for freight, costs and telex numbers. Suppliers of pallets are included
Software test and evaluation project, phases III and IV
Issued as Quarterly progress reports, nos. 1-8, Technical reports [nos. 1-8], Draft report and Interim report, Project no. G-36-611Final report submitted separately in series: GIT-ICS-85/2
Implementation of TPM and 6S Lean in Sonafi
In today’s industrial scenario huge losses/wastage occur in the manufacturing shop floor. This waste is due to operators, maintenance personal, process, tooling problems and non-availability of components in time etc. Other forms of waste includes idle machines, idle manpower, break down machine, rejected parts etc are all examples of waste. The quality related waste are of significant importance as they matter the company in terms of time, material and the hard earned reputation of the company. There are also other invisible wastes like operating the machines below the rated speed, startup loss, break down of the machines and bottle necks in process. Zero oriented concepts such as zero tolerance for waste, defects, break down and zero accidents are becoming a pre-requisite in the manufacturing and assembly industry. A fundamental component of world-class manufacturing is that of the Total Productive Maintenance (TPM), which has been recognized as one of the significant operation strategy to regain the production losses due to equipment inefficiency. TPM is the methodology that aims to increase both availability of the existing equipment hence reducing the need for the further capital investment. The automotive sector constitutes one of the most demanding activities in the global market, since it requires a constant increase in productivity, both in the automobile industry as well as in the companies whose manufacture its components. This sector is currently set within an economic framework where there is a relentless search for costs reduction and an increase in productivity with minimal investment. In order to meet these requirements, companies have sought to optimise their products and processes to ensure higher profits. The main aim is to develop a framework with the capability of assessing the impact of implementing TPM in a company which supplies die-casting products to the automotive sector. The major action was taken in the autonomous and curative maintenance. Due to the undertaken improvements, there was a 2% increase in OEE (Overall Equipment Effectiveness) on line AA3. Along with TPM, 6S Lean is also implemented that is one of the main points of the new standard for automotive industry IATF 16949:2016.Actualmente, qualquer perda/desperdÃcio afeta a competetividade das organizações. Este desperdÃcio deve-se, muitas vezes, à falta de manutenção e consequente indisponibilidade de equipamentos. Outras formas de desperdÃcio são o excesso de produção, o processamento inapropriado, os defeitos, roturas de stocks, etc. Todos os tipos de desperdÃcio são relevantes, contudo os relacionados com a qualidade são de importância significativa, uma vez que têm influência na reputação da empresa. Tolerância zero para o desperdÃcio e para o número de acidentes tem-se revelado um pré-requisito na indústria de produção e montagem. Um aliado no cumprimento deste pré-requisito é a Manutenção Produtiva Total (TPM). A TPM é uma metodologia que visa aumentar a disponibilidade do equipamento existente, reduzindo assim a necessidade de mais investimento de capital. O setor automóvel constitui uma das atividades mais exigentes do mercado global, pois exige um aumento constante de produtividade, tanto na indústria automobilÃstica como nas empresas que fabricam os seus componentes. Atualmente, este setor está inserido numa estrutura económica que procura incessantemente a redução de custos e um aumento na produtividade com um investimento mÃnimo. Para atender a esses requisitos, as empresas têm procurado otimizar os seus produtos e processos para garantir maiores lucros. Neste documento, apresentam-se os resultados de estudo desenvolvido com o objetivo de aprimorar os procedimentos no setor de manutenção de uma empresa que fornece produtos de fundição para o setor automóvel. O principal objetivo foi aumentar a disponibilidade de máquinas e equipamentos através da implementação da metodologia TPM. As alterações introduzidas na linha AA3 resultaram num aumento de 2% no valor do indicador de desempenho Overall Equipment Effectiveness (OEE). Juntamente com a metodologia TPM foi impementada a metodologia 6S Lean, vista como uma estratégia abrangente, poderosa, eficaz e adequada para a solução de todos os tipos de problemas relacionados com a melhoria de processos e produtos
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