Discharges in hydrogen, ignited by wire explosion, with current amplitude up to 1.5 MA were investigated. Channel diameter oscillations were observed on the photostreaks. Voltage and current curves correlated with the photostreaks. At initial gas pressure of 5-35 MPa the oscillation period was proportional to square root of atomic number of the initiating wire material. These oscillations were ...

This paper deals with the measurement and simulation of saw wire temperature during machining a rock sample in vacuum. It is expected for wire-sawing to keep cutting performance by successive supply edges. The vacuum has been investigated lunar planetary explorations. To clarify deterioration due nickel adhesion on rock, rise was investigated. In experiment, reciprocated slider-clank mechanism ...

Compared with gold wire, copper wire is cheaper and possesses lower cost, greater strength and better electrical conductivity, and therefore is becoming more commonly used. But the lower ductility and oxidation undermine the reliability of copper wire bonding, making the wire susceptible to breaking. In the present study, the annealed effect (at 150–250 C for 1 hour) on the tensile mechanical p...

Modernization of mechanical industry has lead to the increase in demand for hard and tough materials and thus various non traditional methods have been developed in order to machine such hard and tough materials. Wire Electric discharge machine is one of the most commonly used machine which is employed in machining of conductive metals of any hardness or that are difficult or impossible to cut ...

but the limbs were not affected, though there was slight loss of power in the legs. Otherwise the patient's health was very good. The cyst was allowed to refill, and a month after the exploration Dr. Amussat cauterized the interior of the tumour in the following way: The patient was seated in a chair and a long trocar passed obliquely upwards through the tumour from the inner extremity of the c...

PURPOSE Metallic implants may cause serious tissue heating during magnetic resonance (MR) imaging. This heating occurs due to the induced currents caused by the radio-frequency (RF) field. Much work has been done to date to understand the relationship between the RF field and the induced currents. Most of these studies, however, were based purely on experimental or numerical methods. This study...

“The idea is to generate electric energy from the mechanical movements of living beings”. When living beings make mechanical movements, they spend their energy some of which is converted to work. The wasted energy can be converted to electrical energy with the help of nano-generators. The nano generators have a piezo electric crystal (say ZnO) which is made up of nanoparticles. These piezo elec...

With this study we analyze the fluctuations of an electronic heat current across a molecular wire. The wire is composed of a single energy level, which connects two leads that are held at different temperatures. By use of the Green function method we derive an explicit expression for the power spectral density of the emerging heat noise. This result assumes a form that is quite distinct from th...

It is shown that under certain conditions the nuclear reaction Li(d, n ) 2 a occurs within the plasma of "exploding" (Li + LiD)-wires. The reaction is not thermo-nuclear but of a hybrid character, i. e. the plasma is not heated to a sufficient temperature but electric fields complete the reaction. By an electrical discharge a (Li + LiD)-wire is heated to temperatures below 200 eV. After the hea...

This paper describes a subcell modeling technique for metallic resonators where the actual metal traces are replaced by a thin wire having equivalent magnetic and electric radii, as well as an impedance per unit length. The formulas for these quantities in the case of rectangular traces are given. In addition, the gap of a split-ring resonator is replaced by a lumped load. The response of the r...