The invention relates to a method for driving and measuring the position of an electromagnetic actuator that operates according to the voice coil principle. The coil thus moves within a magnetized gap relative to permanent magnet core. As the coil extends partially outside of the core, its inductance will change. The voice coil is connected to a controllable current source that can both generate a...

The invention relates to a method for determining the borehole direction during drilling. According to the invention, the method for determining the borehole direction enables the determination of inclination angle teta, highside angle phi and azimuth angle psi by measuring the gravity acceleration vector g and the total magnetic field vector B. Thus, vectors g and B are measured at at least...

The invention relates to a process for short-duty electrochemical formation of lead-sulphuric acid industrial accumulator plates by an intermittent supply of the formation current to the plates immersed in a bath solution with a density of 1.05 g/cm3, the formation duty being divided in "charge - stop" cycles, one cycle comprising a charging step (tj) with optimal intensity current (I optim) and a...

PROBLEM TO BE SOLVED: To provide a solar water heater which achieves higher handlability by enabling collecting of hot water with the temperature thereof as high as possible. SOLUTION: There are arranged an open type hot water storage tank 2, a water quantity detection means 10 mounted on the hot water storage tank, an electromagnetic valve or an open/close valve 5 such as electric valve mounted o...

PROBLEM TO BE SOLVED: To enhance high percentage discharge characteristics of a sealed type lead-acid battery without lowering productivity. SOLUTION: In this manufacturing method, a specific surface of a positive electrode active material is set 9 m2/g or more, fine pores of 0.01 to 0.5 &mu m are set 70% or more of the total spacial volume of the positive electrode active material, and a specific...

Compounds of the formula (I) wherein X is O or S, useful for the inhibition of the replication of HIV-1 and reverse transcriptase mutants thereof, in vitro and in vivo.

A gun mounting bracket for ATV's adaptive to a variety of cargo racks generally employed by ATV's and further provides adaptability of a wide range of gun scabbards or boots designed for a variety of different type guns. The bracket includes a base plate member having a plurality of holes and slots which may be used in combination with U-bolts and clamps for attachment, a pivotal plate member whic...

PROBLEM TO BE SOLVED: To move a body to be tested in directions along an X axis and a Y axis and turn the body about a Z axis by a single testing apparatus. SOLUTION: The apparatus has a disk block 17 driven to rotate centering a vertical axis under a base 16 and a pair of roll means 48 and 49 arranged to positions at right angles to each other. Each of the roll means 48 and 49 is composed of a ta...

PROBLEM TO BE SOLVED: To allow a digital logic circuit to disable an information processor by comparing a password that an input circuit receives with a user password in security operation mode, and sending it a power subsystem and exciting the operation of a digital computer when the passwords match each other. SOLUTION: The password input circuit 82 is connected to a 4-button type security key p...

Disclosed is a process for preparing an open-celled rigid polyurethane foam by reacting a polyisocyanate with a polyol in the presence of a blowing agent, usually water, and a cell opening agent. The cell opening agent comprises a combination of a polyoxyalkylene polysiloxane having a cloud point of 65 DEG C. or less, and a second substance that has a critical surface free energy of less than abo...

A flame retardant composition that is composed of red phosphorus and melamine or a derivative thereof in amounts satisfying a specified ratio for use in the production of polyurethanes. The polyurethanes produced with this flame retardant composition are particularly useful in the production of rail vehicles.

A shaving system has blade(s) (106, 108) and a cap (110) all mounted on a housing. The cap is behind the blades and a guard structure (104) is ahead of them. The guard structure a water-leachable shaving aid composite (116) that is delivered ahead of the blades. In different aspects: 1 The structure also has flexible skin-engaging protrusions (114). The aid is delivered to skin behind the protrusi...

Formulation comprises a particulate medicament (I) e.g. salmeterol, salbutamol, fluticasone propionate, becolomethasone dipropionate and a fluorocarbon or hydrogen-contg chlorofluorocarbon propellant. Also claimed are the prepn of the surface-modified medicament and a canister for delivering metered doses of the aerosol formulation. Pref., (I) is salmeterol xinafoate (Ia); salbutamol sulphate; flu...

A health examination card and its explainer wherein the health examination card can be used to test the biochemical items of blood (BLD), bilirubin (BIL), urobilinogen (URO), protein (PRO), nitrite (NIT), glucose (GLU), free calcium (Ca), etc and the card explainer can be used to analyze the test results of the above items so as to inspect the health status and provide the early indication of the ...

A polyolefin copolymer composition produced with a catalyst having a metallocene complex in a single reactor in a process for the polymerisation of an alpha-olefin monomer with one or more olefin comonomers, the composition having a molecular weight maximum which occurs in that 50% by weight of the composition which has the highest weight percent comonomer content, as expressed by having a comonom...

This process for recycling articles containing at least one vinyl chloride polymer comprises: a) shred the article into 1-50cm size pieces; b) dissolve the pieces in an anhydrous solvent capable of forming an azeotrope with water; c) precipitation of the polymer dissolved in the solvent by stem injection; and d) recovering the polymer particles.

Process for compatibly hydrating a fragmented solid which forms a gel with an aqueous composition where: a) generating an aqueous composition and a oily composition comprising the fragmented solid; b) combining them together in the absence of air; c) contacting the combined composition with a means for vibratorily mixing the combined composition so as to hydrate the said fragmented solid to the ex...

The present invention relates generally to the use of polyaryletherketone-based thermoplastic materials in high pressure, high temperature, production logging applications. A polyaryletherketone resin bonded with glass fibers is formed into a housing for formation evaluation sensors permanently located downhole. The housing is constructed by any of the following processes: filament winding, fiber ...

PROBLEM TO BE SOLVED: To obtain a photopolymerizable mixture that exhibits improved swelling resistance to a UV-curable printing ink, a reduced tonal gain and a reduced tendency to react with a polymerizable component in the UV-curable printing ink and attains the highest resolving power of an ordinary flexographic printing plate and to obtain a photopolymerizable printing plate for making a relie...

PROBLEM TO BE SOLVED: To improve accuracy in an output current to a set value, and at the same time, eliminate current changes with respect to a temperature change and to enable settlement to a set value at high speed, without transient fluctuations. SOLUTION: For this power supply circuit, a resistor R1 for current detection and a field-effect transistor FET1 for current control are connected ser...