http://196.220.128.81:8080/xmlui/handle/123456789/192 Wed, 01 Jul 2026 14:39:32 GMT 2026-07-01T14:39:32Z http://196.220.128.81:8080/xmlui/handle/123456789/5902 Development of Polyurethane Batch Foaming Plant for Small and Medium Foam Production Onamade, Akinola O Batch foaming machine is a set of equipment arranged in an effective and efficient way for the production of foams. This necessitates a carefully controlled reaction to obtain foam of desired and consistent quality. The individual chemicals are prepared for use in feeding tanks from where they are metered and forwarded to a mixing vessel where they are mechanically mixed together and then dispensed into moulds where the foam formation takes place. Flexible Polyurethane (pU- foam) being one of the major component in foam production was first introduced for special purposes in the late 1950's (Armstrong, 1980). The materials soon gained interest and common acceptance as a replacement for rubber and fibre materials. Compared with latex foam products, flexible PU-foam is superior in many ways. It can be produced in densities ranging from about 12 to 50kgs/cbm. It has higher tear strength, better resistance to oxidation, aging as well as fire, and its open cell-structures enables it to absorb and emit humidity, e.g. body heat/humidity. As a result of the ever increasing world population, market demand for foam products increased rapidly, new products and applications were developed and raw materials were improved and diversified accordingly. This necessitate the expansion of the existing factories and the establishment of new plants in more part of the world. There is now variety of different types of foam available for various applications. xi, 67p.: ill.;30cm Thu, 01 Jun 2006 00:00:00 GMT http://196.220.128.81:8080/xmlui/handle/123456789/5902 2006-06-01T00:00:00Z http://196.220.128.81:8080/xmlui/handle/123456789/5900 DEVELOPMENT OF A MATERIAL REQUIREMENTS PLANNING (MRP) SOFTWARE FOR JOBSHOPS AKINTUNLAJI, OLUSOLA AKINBOLAJI The development of a Material Requirements Planning (MRP) software for jobshops is presented in this write-up. The software aims to help in managing materials requirements in job shops by providing weekly reports of orders to work centers and suppliers in order to meet the scheduled due dates for customers' orders. Studies on material requirements planning were conducted to determine the necessary data required for developing a material requirement planning software for jobshops. The software was developed in window based Visual Basic 6.0 programming language, by creating a user-friendly interface to facilitate easy input of data. Then a database was created to integrate the various input data and by taking into consideration all the operational factors involved in material requirements planning, appropriate outputs are generated, which will enhance planning in jobshops. The output report of the application was tested for accuracy by comparing the material plans generated for a machine fabrication jobshop over a period of time with the result obtained from manual material requirements planning computation. The reports of the software were found to be accurate. The software is easy to use and will find great application in industries in developing countries xiii, 120p.:mill. ; 30cm Sun, 01 Aug 2004 00:00:00 GMT http://196.220.128.81:8080/xmlui/handle/123456789/5900 2004-08-01T00:00:00Z http://196.220.128.81:8080/xmlui/handle/123456789/5887 DEVELOPMENT OF COMPUTERIZED TECHNICAL DRAWING LEARNING DESK FOR SECONDARY SCHOOLS OMOTOSO, OLUFIROPO ABlYE The study involves the development of a technical drawing software package called T.D. BASICS for the teaching and learning of technical drawing at secondary school level. A modular approach was adopted using the computer as medium of instruction programs arranged T.D BASICS is an individualized in sequential learning form of order and broken down into small tasks or activities for the leaner to progress at his or her own rate. The Technical drawing software package is divided into two lessons. Lesson one: Technical Drawing Basics. Lesson two; Geometry Lesson one presents a check list of what a student of technical drawing should learn for effective drawing. These are;- Uses and care of drawing instruments, lines and lettering techniques, board practice, freehand sketching, dimensioning and notation. Lesson two presents in detail the technique associated with geometric in constructions. It covers both the plane and solid geometry. Each lesson is divided into a number of modules programmed in a logical step by step order from simple to complex for use at all levels of the secondary school educational setting (JSS I- SSS3). The objectives for each module are outlined at the beginning to give an insight into the expected learning outcome. Questions are equally provided at the end of each module for student evaluation. The software was developed with visual basic programming language. T.D BASICS was found to be useful in the teaching and learning of technical drawing and as a self-educator. The application software is fully interactive and user friendly. It runs on Microsoft windows operating system. ix, 351p. : ill. ; 30cm Thu, 01 Jun 2006 00:00:00 GMT http://196.220.128.81:8080/xmlui/handle/123456789/5887 2006-06-01T00:00:00Z http://196.220.128.81:8080/xmlui/handle/123456789/5884 DEVELOPMENT OF COMPUTER-AIDED DESIGN SOFTWARE FOR JIGS AND FIXTURES FOR DRILLING FLANGES ABIODUN, ODUFALE OLATUNDE A detailed review of relevant literature was carried out to provide basic information on the construction of jigs design. Also, the documentation of acquired data for the purpose of developing suitable design process using Computer Aided Design (CAD) was carried out. A computer software that would automatically draw the needed jigs and fixtures from the data or the flange (object) was developed. A description of the design requirements and constraints was obtained by considering the different configurations of the workpiece. A geometric model of the fixture was developed and analysed for kinematic, force and deformation compatibility. A heuristin algorithm was developed and the program written using JAVA language default package. The program is user-friendly and was written in modules to allow for flexibility and quick responsiveness. The program was validated with real life sample data from a workpiece. xvi, 126p. : ill. ; 30cm Fri, 01 Sep 2006 00:00:00 GMT http://196.220.128.81:8080/xmlui/handle/123456789/5884 2006-09-01T00:00:00Z