Tribo-electrification is an important phenomenon in powder handling, as it could cause hazards and nuisance, such as dust explosion, adhesion to walls and blockage of pipelines leading to powder losses and difficulties in flow control. At present, there are only a few methods available to predict the dynamic charging of bulk powders, and they are not suitable for testing a small quantity of pow...

The MicroElectroMechanical Systems (MEMS) field is proceeding at a rapid rate in designing and developing new ever smaller, ever higher performance sensor and actuator devices in silicon. These devices need to be assembled along with more conventional small devices into complete systems. Currently there are no automation systems capable of meeting the exacting requirements of handling these sma...

A servo manipulator system has been developed for remotely handling radioactive materials in a hot cell [1]. Unlike a robot manipulator, a servo manipulator is monitored and controlled by an operator all the time. A robot manipulator performs a taught or programmed task without an operator. Generally, a servo manipulator consists of a master arm and a slave arm. The slave arm is a device for wo...

OBJECTIVE Recent developments of negative pressure wound therapy (NPWT) systems have focused on making pumps smaller, lighter, and more portable. The recently introduced PICO system manages wound fluid through a highly breathable film within the dressing, thereby negating the need for a canister, which allows greater mobility and patient concordance. The aim of this study is to compare the biol...

In this paper, a principal’s decision between delegating two tasks or handling one of the two tasks herself is analyzed. We assume that the principal uses both, formal contracts and informal agreements sustained by the value of future relationships (relational contracts) as incentive device. It is found that the principal is less likely to delegate both tasks in a dynamic setting than in a stat...

The unit load storage assignment problem determines the assignment of a set of unit loads with known arrival and departure times to a set of unit storage locations in a warehouse. The material handling device(s) can carry at most one unit load at the time. In this research it is assumed that each of the storage locations can be accessed directly without load relocations or rearrangements and th...

the effects of dietary nucleotide (nt) were evaluated on some serum biochemical parameters and acute stress responses of the catfish (pangasianodon hypophthalmus). five experimental diets including 0, 0.25, 0.5, 0.75, and 1% nt were supplied to catfish fry for 10 weeks. at the end of the experiment, fish fed the control and 1% nt diets were subjected to handling and crowding stress. the results...

chemotherapy medication errors may lead to potentially harmful consequences while most of them could be preventable. this study aims to determine the incidence and type of drug handling and administration errors among the nurses and to identify possible contributing factors. setting of the study was a teaching hospital affiliated to shahid beheshti university of medical sciences, tehran, iran. ...

Abstract Handling robots are widely used today, and non-fixed handling is more effective than fixed in some specific scenarios. The of can increase the load reduce precise positioning process grabbing object, but velocity relatively slow for stability object. In addition, it needs to consider friction reaction force constraints on This paper proposes a high-velocity method robot. First, deduces...