A two stage reaction for the production of steel from iron carbide is carried out in two separate but interrelated reactors (1, 36). In the first reactor (1), iron carbide, with slag formers, is fed into a feed end (2) and the reaction is well-mixed by the vessel geometry, the stirring action of below-surface injection of oxygen and iron carbide feed, and the evolution of gases from the liquid met...

Method for measuring the flow rate in a fluid flow (30), particularly a two-phase flow comprising oil, water and gas from a development well offshore. The fluid flow is shut off temporarily and transitorily by means of a valve (33), and the fluid pressure is recorded at a location (37) immediately upstream of the valve (33) from a time when the valve starts closing to a selected moment of time aft...

A process and device for preparing bivalves, in particular oysters, for opening. The process consists of partially opening the bivalve, then encircling the adductor muscle of the bivalve with a ring or similar, one part of which, designed for gripping, remains outside the bivalve, so that, when the bivalve is subsequently closed, the adductor muscle can be severed by pulling on the aforesaid gripp...

Process for realizing a foamy slag on a stainless steel in fusion within an electric oven characterized by: the introduction in the slag of a powder containing in its composition at least a metallic and carbon oxide reduced to at least an oxide contained in the powder by the reaction of this with the carbon for forming in the slag bubbles composed essentially by metal in metallic oxide and carbon ...

PROBLEM TO BE SOLVED: To firmly fix a shaft and a gear together by forming tapers in the same direction on the inner circumferential face of a hole in the gear and on the outer circumferential face of a cylinder part and forming a slit in the axial direction in the cylinder part. SOLUTION: According to force fitting of a bush 30, forces F1, F1 narrowing a slit S are applied to a cylinder part, 31,...

PROBLEM TO BE SOLVED: To dispense with an induction ventilator so as to reduce the cost and also improve plant efficiency, and also, dispense with the measure to counter negative pressure of the exhaust gas duct on the outlet side of the boiler body, by providing an exhaust gas injector with a fan which pressure-sends the exhaust gas from other engine to the side of an air duct for combustion, in ...

PROBLEM TO BE SOLVED: To provide a hot water supply apparatus utilizing solar heat and a heat storage apparatus which enable efficiently heating of water. SOLUTION: When the temperature of an antifreeze liquid W to be heated by a head collection plate 1 is up to a specified value and a temperature difference between temperature sensors S1 and S2 is up to a specified value, the driving of a pump P ...

PROBLEM TO BE SOLVED: To obtain a projector excellent in the durability of a light source lamp without causing any trouble even in the case of pulling out a power source plug just after use by constituting the projector of a cooling fan arranged adjacently to the light source lamp and sending air to the light source lamp and a storage battery which is connected to the cooling fan and in which elec...

PROBLEM TO BE SOLVED: To reduce dispersion in the shape of outside appearance and to efficiently produce a packing body having moistureproof and dustproof effects by making sheet material on both sides of a camera cylindrically surround the camera, pressing and heating it in a mat mesh state so that the internal surfaces of both side ends in the width direction of the sheet material are opposed to...

PROBLEM TO BE SOLVED: To enable extreme improvement in the initial capacity and the service life performance of a sealed lead storage battery in which a Pb-Ca based alloy is used in a positive electrode grid, by employing a positive electrode plate for whose positive active material, a particular quantity of conductive tin oxide fiber of a specific fiber length is added. SOLUTION: Pb-Ca based allo...

PROBLEM TO BE SOLVED: To enable Pb-Sb based alloy to be used in the positive electrode lattice to eliminate early stage capacity drop of a lead storage battery, owing to such a result that even though Sb is eluated from the grid, it is occluded on positive pole active substance so that Sb eluated quantity into electrolytic liquid and Sb deposit it quantity on a negative electrode plate may be redu...

PROBLEM TO BE SOLVED: To enable a discharge lasting time to be improved as the result of aiming at restriction of any voltage drop during high rate discharging without increasing a battery weight by increasing the lead concentration in a lead storage battery-use electrode plate, furthermore as separating from the ear part that is the collector terminal part of a electrode plate. SOLUTION: Each all...

PROBLEM TO BE SOLVED: To provide longer service life by optimizing the amount of silica in a separator. SOLUTION: This sealed lead-acid battery is of retainer type which uses a positive pole grid of Pb-Ca alloy, whereas metallic tin or tin compound is added to a positive pole active substance by 0.5% and over, 5% and under in terms of metallic tin per positive pole active substance weight, and a s...

PROBLEM TO BE SOLVED: To improve durability of a lead-acid battery by suppressing generation of a short-circuit or the like caused by grid corrosion without generating a decrease in electric capacity due to an increase in the weight of an electrode grid or a decrease in active material amount. SOLUTION: This lead-acid battery electrode consisting of an electrode grid 1 constituted of a mesh grid s...

PROBLEM TO BE SOLVED: To extend fuel cutting range in which the supply of fuel is stopped at the time of deceleration or braking in a controller for a parallel hybrid vehicle. SOLUTION: The supply of fuel to an internal combustion engine is stopped at the time of deceleration or braking, and regenerative braking by an electric motor is performed to store the generated power in a power storing devi...

Bande de roulement (1) pour pneumatique de type "Poids-Lourds" à armature de carcasse radiale surmontée radialement d'une armature de sommet (4), ladite bande de roulement étant pourvue de rainures (2) pouvant être recreusées, caractérisée en ce que les parties de bande de roulement disposées radialement sous les rainures (2) sont munies d'indicateurs de profondeur (5), chaque indicateur (5) co...

The invention concerns a method and an equipment in the forming of a lead-in strip (A) in a paper/board machine. In the method, two cutters (C1, C2) are used, of which at least one cutter (C2), which is brought into connection with the web from outside the web, is a liquid cutter, preferably a water cutter. In the method, by means of the first cutter (C1) a first cut (f1) is made, and by means of ...

An arrangement for removably attaching a drive shaft of a track belt to an output shaft of a transmission allows the drive shaft to be mounted and removed easily and rapidly with respect to the output shaft. A driving pulley of a V-belt transmission is mounted on the right end of a crankshaft of an engine. A gear box is disposed proximately on the right side of a driven pulley of the transmission....

The system is used in civil engineering, in particular inbuilding of buildings orientated in one direction of hotel type.It facilitates the heating of the walls lateral to the facade fromthe heated air from an accumulated space formed parallel to thefacade. The system includes an inclined air canal (1 ) located inthe walls lateral to the facade, and above it vertical air canals(2) are built separa...

The present invention relates to methods and compositions for visualization of the toxic effects of transgenes in vivo. In particular, the present invention provides methods and compositions for the production and use of transgenic, including dually transgenic, Caenorhabditis elegans for visualization of the toxic effects of beta -amyloid accumulation in vivo.