Generative geometric design and boundary solid grammars

This thesis explores the automatic generation of solid models based on a grammatical paradigm. It introduces a formalism, boundary solid grammars, for this purpose. In this formalism, a set of geometric rules is applied to an initial solid model to generate a language or family of solids. A rule may match on a portion of the boundary of a solid, and then modify the solid or add new solids. Genesis is presented as an implementation of the formalism. A number of grammars have been constructed to demonstrate the concepts and usefulness of the formalism. These grammars generate simple geometric forms including snodakes, recursive octahedra, “fractali mountains, and spirals. Another grammar generates stereo lithography support structures. Queen Anne houses have been characterized with a more extensive grammar. Grammars are also being developed to generate housings for small computers and structural designs for high rise buildings. The thesis introduces the unary shape operations and a new paradigm for solid modelling, The unary shape operations take models that may have self-intersections, interpret the models consid- ering the given geometry and face orientations, and produce valid models. Local operations, the unary shape operations, and Boolean operations are used together within a valid modelling scheme. The thesis introduces a new boundary representation for manifold and nonmanifold solids, the generalized split-edge representation. It describes generalized Euler operations which manipulate the topology of the nonmanifold representation. Finally, the thesis presents a form of the Euler- Poincare equation that characterizes the relationship between elements of nonmanifold surfaces of solids

Propuesta de mejora en la gestión operativa y logística para reducir los costos operacionales de la empresa CMYK Implementaciones Publicitarias S.A.C

RESUMEN El presente trabajo de investigación tiene como objetivo general reducir los costos operacionales de la empresa CMYK Implementaciones Publicitarias S.A.C., a través de una propuesta de mejora de gestión operativa y logística. Como primer paso, se desea determinar la situación actual e identificar los problemas existentes. Para ello, se emplearán las siguientes técnicas: Diagrama de Ishikawa, Encuesta, Matriz de Priorización, Diagrama de Pareto y Matriz de Indicadores, con los cuales podremos priorizar las causas raíces más relevantes. Por otro lado, es necesario basar nuestro análisis en un marco teórico referente a los temas a tratar, intentando tomar todos los datos necesarios, y sirvan como soporte a las herramientas desarrolladas. Luego de identificar los problemas, se procedió a calcular las pérdidas para determinar el impacto económico que genera la empresa. Así mismo, se desarrolla la propuesta de mejora iniciando con la creación de una Política Administrativa, Sistema MRP, Perfil de Puesto en el área administrativa, definición de un organigrama, Política de colocación, 5’S, Codificación, Layout, Política de Supervisión, Kárdex, Homologación de Proveedores, Documentos logísticos y Método ABC. Además, se incluye el procedimiento para la selección y evaluación de proveedores como apoyo a una de las herramientas, logrando disminuir los problemas identificados y permitirá estandarizar y controlar los procesos logísticos y de gestión operativa en la empresa, satisfaciendo los requisitos principalmente de nuestros clientes y beneficiando en gran medida a la entidad. Finalmente, se realizará un análisis económico - financiero para comprobar que el estudio realizado es viable para la empresa, obteniendo como resultado un VAN de S/ 28,934.40, un TIR de 80.41% y un B/C de 1.17, por lo cual se concluye que esta propuesta es factible y rentable para la empresa CMYK Implementaciones Publicitarias S.A.C. Palabras clave: política administrativa, MRP, perfil de puesto, codificación, layout, política de supervisión, kárdex, proveedores, documentos, ABCABSTRACT The general objective of this research work is to increase the profitability of the company “CMYK Implementaciones Publicitarias S.A.C.”, through a proposal to improve operational and logistics management. As a first step, you want to determine the current situation and identify the existing problems. For this, the following techniques will be used: Ishikawa Diagram, Survey, Prioritization Matrix, Pareto Diagram and Indicator Matrix, with which we can prioritize the most relevant root causes. On the other hand, it is necessary to base our analysis on a theoretical framework referring to the topics to be treated, trying to take all the necessary data, and serve as a support to the developed tools. After identifying the problems, we proceeded to calculate the losses to determine the economic impact generated by the company. Likewise, the improvement proposal is developed starting with the creation of an Administrative Policy, MRP System, Position Profile in the administrative area, definition of an organizational chart, Placement Policy, 5'S, Coding, Layout, Supervision Policy, Kárdex, Homologation of Suppliers, Logistic Documents and ABC Method. In addition, the procedure for selecting and evaluating suppliers to support one of the tools is included, managing to reduce the identified problems and allow standardizing and controlling the logistics and operational management processes in the company, satisfying the requirements mainly of our customers and greatly benefiting the entity. Finally, an economic-financial analysis will be carried out to verify that the study carried out is viable for the company, obtaining as a result a NPV of S / 28,934.40, an IRR of 80.41% and a B / C of 1.17, for which it is concluded that This proposal is feasible and profitable for the company “CMYK Implementaciones Publicitarias SAC

Shape grammars for architectural design: the need for reframing

Although many shape grammars and corresponding implementations have been proposed, shape grammars are not widely adopted by architectural designers. In this paper, we therefore look for the barriers of implementing and using shape grammars for architectural design. We do this by outlining several implementation strategies of shape grammars, we briefly point to our own graph-based design grammar system, and we analyse the resulting overview using theories on how designers think and act upon incoming information. Based on this analysis, we develop and suggest how design grammars might best be implemented and used for architectural design relying on the information technologies available at this particular moment of time