in this work, the waste stone sludge obtained from the granite and marble stone processing factories was used for the manufacture of artificial stones using vibratory compaction in a vacuum environment. the results obtained showed that water absorption and density increased, and the flexure, compressive, and tensile strengths decreased with increase in the content of the waste stone sludge. the...

FIG. 1.-Case 1. Radiograph of abdomen showing immense faecal distension of caecum, ascending colon, and hepatic flexure. The collapsed bowel distal to the colostomy has been outlined by barium for comparison. FIG. 2.-Case 2. Radiograph showing faecal distension of hepatic flexure. FIG. 3.-Case 3. Radiograph of abdomen showing multiple fluid levels throughout small bowel together with marked fae...

The present study was conduct to assess the effect of Chlorpyrifos toxicity to behavioural and morphological manifestation of fry fish of Channa punctatus. The mortality data obtained through probit analysis was found to 0.365, 0.328, 0.269, and 0.253μl/l at 24, 48, 72, and 96 hrs respectively. The change in behaviour of fish such as convulsions, swimming erratically, vertical hanging, coughing...

Over-constraint is an important concern in mechanism design because it can lead to a loss in desired mobility. In distributed-compliance flexure mechanisms, this problem is alleviated due to the phenomenon of elastic averaging, thus enabling performance-enhancing geometric arrangements that are otherwise unrealizable. The principle of elastic averaging is illustrated in this paper by means of a...

An analytical model is provided for the piezoresistive phenomenon of continuous carbon fiber polymer–matrix composite under flexure. This phenomenon allows strain sensing and entails reversible increase of the tension surface resistance and reversible decrease of the compression surface resistance during flexure. The model considers the surface resistance change to be due to change in the degre...

In this paper, the design of a new compliant XYZ totally decoupled parallel-kinematic nanopositioning stage based on flexure mechanism is presented, which is driven by PZT actuators. The output of the flexure stage is enlarged by a compound amplifier of three order based on bridge principle with the amplification ratio of As which is larger than the ratio of As for one simple amplifier. The thr...

The architecture optimization of a newly designed flexure XY parallel micro-manipulator with both input and output decoupling is conducted in this paper. In view of the compliance of flexure hinges, the input stiffness model of the motion stage are established based upon the matrix method, and then the dynamic equation is derived through the Lagrangian approach, which is verified by the modal a...