Information is the key asset of all organizations and can exist in many forms. It can be printed or written on paper, stored electronically, transmitted by mail or by electronic means, shown in films, or spoken in conversation. In today's competitive business environment, such information is constantly under threat from many sources, which can be internal, external, accidental, or malicious. Joomla is a very popular Content Management System (CMS) used for web page maintenance. This highly versatile software has found itself in both large corporate web portals, and simple web pages such as blogs. Such popularity increases its vulnerability to potential attacks and therefore needs an appropriate security management. ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) created the series of standards aimed at providing a model for establishing, implementing, operating, monitoring, reviewing, maintaining and improving an Information Security Management System (ISMS). This paper shows how principles set in ISO/IEC 27000 series of standards can be used to improve security of Joomla based web portals.
In order to decrease the measuring cycle time on the coordinate measuring machine (CMM) a robot workstation for the positioning of measuring objects was created. The application of a simple 5-axis industrial robot enables the positioning of the objects within the working space of CMM and measuring of different surfaces on the same object without human intervention. In this article an upgrade of an existing robot workstation through different design measures is shown. The main goal of this upgrade is to improve the measuring accuracy of the complex robot-CMM system.
This paper presents the status of certification of Quality Management Systems (QMS) in enterprises in Bosnia and Herzegovina. The paper also gives basic information about supporting national and international programs providing support for QMS certification. The research was conducted in two parts: 2009 and 2014. The questionnaires covered business decisions, reasons for the continuation of business decisions, obstacles to establishing business decisions and activities of organizations for the provision of permanent improvements.
Three dimensional measurement of complex geometry with Coordinate measuring machines (CMMs) requires multiple clamping and fixturing of measured object. In order to speed-up this process and to reduce the number of fixturing operations, a robotic arm can be used to manipulate the measured object. This paper describes measurement uncertainty analysis of an improved complex measurement system consisting of robotic arm and the coordinate measuring machine.
Coordinate measuring machines (CMMs) are widely used to check dimensions of manufactured parts, especially in the automotive industry. The major obstacles in automation of these measurements are fixturing and clamping assemblies, which are required in order to position the measured object within the CMM. This paper describes how an industrial robot can be used to manipulate the measured object within the CMM work space, in order to enable automation of complex geometry measurement.
Coordinate measuring machines (CMMs) are widely used to check dimensions of manufactured parts, especially in the automotive industry. The major obstacles in automation of these measurements are fixturing and clamping assemblies, which are required in order to position the measured object within the CMM. This paper describes how an industrial robot can be used to manipulate the measured object within the CMM work space, in order to enable automation of complex geometry measurement.
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Shrinkage and warpage is a leading fact in casting. It is common to compensate shrinkage by scaling the tool by a certain percentage. The transformed 3D CAD model of a final product is used for tool generation. The transformations of CAD model include 3D scaling or external surface offset. Both methods are proportional and uniform in all three axes, and they are already included in a vast variety of CAD software packages. The shrinkage and warpage process, however, is not necessarily uniform, and some portions of a product can have different shrinkage ratio. Therefore, it is necessary to introduce the new CAD transformation technique: non-proportional 3D scaling. This paper deals with estimation of 3D function that should be used to transform the 3D CAD model of a tool, in order to obtain the optimum result. The casting tool and sample castings are measured on a coordinate measuring machine, and these measurement results are used to estimate the shrinkage percentage needed for different parts of a CAD model.
Shrinkage and warpage is a leading fact in casting. It is common to compensate shrinkage by scaling the tool by a certain percentage. The transformed 3D CAD model of a final product is used for tool generation. The transformations of CAD model include 3D scaling or external surface offset. Both methods are proportional and uniform in all three axes, and they are already included in a vast variety of CAD software packages. The shrinkage and warpage process, however, is not necessarily uniform, and some portions of a product can have different shrinkage ratio. Therefore, it is necessary to introduce the new CAD transformation technique: non-proportional 3D scaling. This paper deals with estimation of 3D function that should be used to transform the 3D CAD model of a tool, in order to obtain the optimum result. The casting tool and sample castings are measured on a coordinate measuring machine, and these measurement results are used to estimate the shrinkage percentage needed for different parts of a CAD model.
Measurements are obligatory steps in every production process. Quality of products is closely related to the measurements and these links are given in the cycle of quality assurance. Inspection and measurements of products are carried out in all phases of product development. Control and measurements are undivided part of production in automatized and mass production. Every type of production contains its own type of control and measurement. All methods of measurements can be divided into tactile and optical. That was the base for construction the measurement devices for appropriate conditions. Classical measurement devices were not discussed in this paper. The topic of this paper are coordinate measuring machines and various kind of probes.
"Boraboard" is U.S. commercial name for panels made of processed wooden waste. They are also known in Germany as MDF (Mitteldichtefaserplatte). These panels are in wide use as a material for production of furniture, machinery or buildings. One of their major disadvantages is their likeliness to be deformed. These deformations occur during their storage, and it is necessary to determine the best way to support them during storage phase. The storage phase sometimes lasts months, even years, and it is very hard to maintain humidity, temperature and other influences under control to avoid deformation. More convenient solution is to change the storage layout. The panels are stored in blocks of 30 panels. They cannot be placed on straight surface, since they need to be manipulated with lifters.
The quality of 3D scanned data is influenced by many factors, such as scanned surface color, glossiness, geometry, ambient light, scanner resolution, proper selection of scanned segments, etc. Surface color and glossiness are important sources of errors, and this paper studies their effects on a specific commercial scanner. Preparatory phase of digitizing process includes selecting proper combination of scanner's sensor aperture and shutter time, depending on the characteristics of scanned surface. This paper investigates a relationship between the color of scanned surface, the glossiness of scanned surface and the 3D laser scanning quality.
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