The major needs in machining are high material removal rate, good work surface finish and low tool wear. These objectives can be achieved by reducing tool wear using proper cooling system of the tool during machining. In the present work a tool has been modified to apply liquid nitrogen as coolant through a hole made in the tool so that liquid nitr

All control systems suffer from problems related to undesirable overshoot, longer settling times and vibrations while going form one state to another state. Most of relevant techniques had been in the form of suggesting modification and improvement in the instrumentation or interfacing part of the control system and the results reported, remain suf

In the present study an analysis has been done to evaluate the electrode wear along the cross-section of an electrode compared to the same along its length during EDM of aluminum and mild steel using copper and brass electrodes. In an overall performance comparison of copper and brass electrodes, we found that electrode wear increases with an incre

This paper attempts to model and design a simple fuzzy logic controller with Variable Reference. The Variable Reference (VR) is featured as an adaptability element which is obtained from two known variables – desired system-input and actual system-output. A simple fuzzy rule-based technique is simulated to show how the actual system-input is grad

The liquid properties such as buoyancy, pressure at a depth, relative electrical permittivity, electrical conductivity, thermal conductivity, absorption of radiation, liquid surface reflection of sound or light waves, are used to design the different types of liquid level transducers for liquid level measurement in any process industry. The contact

The generation of intensive heat during grinding not only accelerates wheel wear but also impairs the machined surface by inducing tensile residual stresses, micro-cracks and thermal damage. The application of conventional cutting fluids does not help to remove these problems effectively, particularly under heavy cutting conditions. Moreover, conve

This work is making use of the capacitive element that is made of two electrodes - a column of liquid the level of which is to be measured, and a metallic tube that is pulled and fitted over a PVC tube of accordingly smaller dimensions. Both of the electrodes are provided with contact terminals for easy connection within a bridge circuit, which is

This paper reports on the experimental investigations of surface roughness and material removal rate in electrical discharge machining (EDM) of austenic stainless steel. The importance of this study is that it establishes imperical relations regarding machining parameters and the responses in analyzing the machinability of the austenitic stainless

Total feeding rates and digestion effectiveness of the Siberian sturgeon were determined for a limited one-hour feeding and for continuous feeding. The mean fork length was 13.7 1.7 (S.D) and mean weight was 12.0 3.2 (S.D) g for the individuals used in these experiments. Continuous feeding induced subsequent weight increase of the stomachs but the

İslam Hukukunun konumuna, reform konseptini değerlendirerek, yardımcı etmenlerle birlikte bir bakış. İslam Hukuku ilahi bir karaktere sahip olmasına rağmen ahkâmında insan etkisi göz ardı edilmemektedir. Bu ilahi kaynaklı hukuk sisteminde insan müdahalesine olanak sağlayan bazı etmenler vardır. Bu etmenlerin varlığı İslam huku