Database systems configuration

In many database systems it is common practice to record the presence/absence of certain specified features in terms of the on/off (1/0) setting of bits in a bit-map. Items in the CSD that are suitable for such space-saving treatment are e.g. yes/no flags indicating a neutron diffraction study, absolute configuration determination, residual errors in entry, etc. A total of 124 bits record information in this way and... 

This section discusses how a customisable chemical-scientific database system can provide for competitive chemical/pharmaceutical research as technology advances. The areas explored include the differing information needs of various research departments, the differing computer configurations among departments and sites, and the possible architecture of the database system. 

Another important need in the chemical/pharmaceutical industry is for a chemical-scientific database system that will operate in diverse computer configurations. The computers, workstations, PC s, terminals, and networks of a company may differ by... 

In Figure 8, each circle depicts a hardware component of a departmental or site-wide computer system. The union of all circles for all departments and sites represents the computer system of a chemical/pharmaceutical company. Intersecting circles indicate hardware component interactions. Since each department and site may have a unique hardware configuration, it is difficult to design a chemical-scientific database system that treats all unions and intersections. A chemical-scientific database system that is adaptable a wide range of computers, workstations, PC s, terminals, and networks is a good solution to this difficulty. 

As the performance of the interfaces defines the performance of the system for each of the emerging properties/categories, a system is delivering against safety, RAM and performance, the detailed information about the interfaces, including the stage of the project (system configuration) the interface is active for, is captured in the Objects (assets, procedures and people) and Interfaces Database (OIDB). 

Objects and interface database which contains detailed description of all objects and interfaces within SCID and descriptions of changes to these for different system configurations. 

The computer architecture of the LACS is based on an industrial access control system, including redundant central servers, front-ends providing communication with local controllers of the IIS Access. All system configuration data, permissions, and access transactions are recorded in a centralized database. 

The database supplied by the two calculations identified as ND03 and M03 in Table VII, constitutes the result of the activity. System configurations considered as input for calculations ND03 and NI03 comply with the strategies at items a) and b) above. In the Table VII, calculations KKOl and KN08 are taken from Table VI in order to set reference values for the considered parameters. 

Templates for each of the joint configurations are stored within the system. The operator selects one of the templates, and is provided with a visual representation, as shown in Figure 3, on which he can alter the Joint dimensions and weld geometry to match those of the item to be examined any ae-cess restrictions can also be defined. Using information from a database of available probes, along with the examination level required, ProcGen then calculates the set of scans required (see Figure 4). 

Pure paper-based data collection systems are most suitable for small and short-term studies. Their advantages are that no computer hardware or software is needed at the participating sites because data are recorded manually on paper forms that are transferred to the centralized location in batches. A major drawback is that participating sites do not have real-time access to their data because no database is created locally. However, both hardware and software are needed at the centralized location for the data management system. The type of hardware and software used is determined by the configuration of the centralized computer. The most commonly used platforms include Open VMS, Unix, or PC, and one of the most widely used software packages is SAS [16]. 

Computers. A certain number of personal computers are necessary for report generation and regulatory submission preparation. In addition, these may be useful for record keeping, depending on the type of stability information system that the company chooses to use. Alternatively, if the information system is intended to be accessible (read only) to many users, it may be more efficient to develop a local area network of mini-computers. The size of the database will help determine the nature of the software/hardware configuration used for this function. 

The client workstation can be established on Windows 2000 system and configured to enable for VPN connection to the remote network. Windows 2003 Server can be used as Network Access Server (NAS) for this purpose. The Radius biometric server can be installed on the same machine as NAS. The server may use MS SQL 2000 database for biometric templates storage. MS SQL database makes it easy to import biometric data from BioBase. MS SQL database interface must then be applied to Radius server. The enrolment station can be established on a remote Windows 2000 system. The next subsections depict the scenario elements. 

A basic scheme of the configuration of the existing PV-diesel autonomous power system is presented in Figure 5.2. The main power components of this system are PV panels, diesel generating set, batteries and a converter. To simulate this system and perform a techno-economic analysis individual costs (capital cost, replacement cost, operation and maintenance cost) have to be identified for each component. The identification of these costs was mainly based on the RETScreen database developed in Canada (Natural Resources Canada, 1998). 

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