A depth measurement system produces independent signals, each presumably corresponding to the same movement of a wireline if produced under ideal wireline measurement conditions. The system utilizes the signals to provide an accurate and repeatable signal under varying wireline measurement conditions and is particularly suitable for driving a recorder for depth recording and merging measurements f...

A centrifugal processing system for cultured cellular suspensions comprises a reservoir (66) for pooling a desired volume of the cellular suspension from a plurality of individual containers (60) in which the cellular suspension have been cultured. A centrifugation chamber (36) is provided operative in response to centrifugal force for separating the cellular suspension into a cellular component a...

Polymeric particles, selected from natural rubber, styrenebutadiene rubber, polymers of ethylene-propylene diene monomers, PET and polypropylene, in finely divided form, are contacted with a gaseous medium comprising elemental fluorine and at least one other reactive gas selected from Cl, O2 or SO2, for a time sufficient to effect chemical modification of the surface layer of the particles by form...

A novel process for the preparation of a readily dispersible, pourable dispersion powder comprising emulsion polymerizing in the presence of a free radial initiator a mixture of 1 to 50% by weight of ethylene and 99 to 50% by weight of an ethylenically unsaturated comonomer phase comprising at least one member of the group consisting of (a) 60 to 100% by weight of vinyl chloride, (b) 0 to 40% by w...

The subject of the present invention is an extensometer sensor (1, 1') for measuring stresses by means of gauges acting on a drilling element (50) at the bottom of a well. The extensometer sensor comprises: - a first measuring zone (10) composed of at least two tension leaves (11, 12, 13), on which are mounted measuring gauges connected at their ends by means of vertical members (14, 15), so...

The present invention relates to a remote actuator for a piece of equipment, operating by variation in the flow conditions of a possibly incompressible fluid, comprising an actuating piston (12) and a nozzle-needle unit (20, 21; 53, 57). This actuator is characterised in that one of these two elements (20, 21; 53, 57) is mounted so as to slide in the said piston (12), and in that it comprises mean...

The present invention relates to a method and apparatus for the remote control of at least one piece of drill-string equipment from an instruction transmitted from the surface. The method according to the invention involves the following steps - transmission from the surface of a first information sequence conforming to a predetermined sequence, - detection of a second sequence resulting from th...

Et biologisk nedbrytbart formet produkt omfattende eti ekspandert høyt amylosestivelsesprodukt med minst 45 vekt-% amyloselnnhold, idet det ekspanderte produktethar en lav tetthet, lukket cellestruktur med godelastisitet og kompresslbilitet.En annen utførelsesform tllveiebrlnger et biologisknedbrytbart emballasjemateriale omfattende et ekspan-dert, lav-tetthet, lukket cellestlvelsesprodukt, idetst...

In the manufacture of thermoplastically processable starch, an additive is essentially mixed with native or natural starch and the mixture is caused to melt by the application of heat and mechanical energy. The additive is a substance which lowers the melting point of the starch so that the melting point of the starch together with this additive lies below the decomposition temperature of the star...

A process for providing a protective coating on a polycarbonate substrate comprising (i) applying onto said polycarbonate substrate a priming emulsion composition containing (a) a thermosettable acrylic polymer, (b) an ultraviolet light absorber selected from the benzylidene malonates and cyanoacrylates, (c) water, and (d) a hydroxy ether or an alkanol; (ii) curing the thermosettable acrylic polym...

Arsenic and/or amphoteric elements are removed from sludge or solid waste. The process comprises (a) subjecting to thermal treatment in the presence of air or oxygen or an alkaline reagent to burn organic components and decompose inorganic ones; (b) extracting with water; (c) treating the extract with an anion exchanger in OH form to bind the elements in anionic form; (d) eluting with an aq. alkal...

The noxious element arsenic may be removed with high efficiency from iron hydroxide sludge by first subjecting that sludge first to a thermal treatment in the presence of air or oxygen and of an alkaline reagent and next extracting the treated material with water. The arsenic present in the extract is thereupon adsorbed to an anion exchanger, eluted with an alkaline aqueous liquid and precipitated...

The porous material is made by (1) forming through vigorous stirring an emulsion suspension of mixt. of (i) glycidyl type epoxide resin; (ii) first hardener comprising modified polyamine hardener (obtd. by modifying with a modifying agent, a polyamine hardener or the mixt. thereof and/or an amine hardener; (iii) polyamide or second hardener; (iv) filler; (v) water; (2) pouring suspension into a wa...

PURPOSE:To obtain a thin film superconductor of high quality, high performance and good reproductivity by forming a different kind of thin film on the substrate boundary surface and on the surface of the thin film superconductor. CONSTITUTION:A Bi layer structure compound oxide thin film 13 is formed so that a Bi-O layer is parallel to the substrate 11 surface and Bi oxide thin films 12A, 12B are ...

PURPOSE:To obtain a high level of characteristic with a high critical temperature and critical current density by forming a superconductor layer consisting of B1 type superconductor over a long, line- or tape-shaped substrate with the substrate formed with a specific crystallized oxide. CONSTITUTION:The outer circumferential surface of a substrate 11 made of crystallized oxide such as MgO or Al2O3...

PURPOSE:To suppress the evaporation of Pb out of a film during heat treatment of a process of forming thin film of superconductor of Bi-Sr-Ca-Cu-O family to which Pb is added by performing the heat treatment in the atmosphere of Pb or PbO vapor. CONSTITUTION:An oxide superconductor film of Bi-Sr-Ca-Cu-O family made with sputtering process or with vapor deposition and to which Pb is added is heat t...

PURPOSE:To safely form a superconducting thin-film element without generating any harmful substance by a method wherein a thermal diffusion process of a toxic element or an element whose vapor pressure is high is executed at the last stage of an element manufacturing process. CONSTITUTION:A Ca-Ba-Cu-O oxide thin film 5 with a thickness of 2mum is first formed on a substrate 1 by using a sputtering...

PURPOSE:To manufacture a good-quality superconducting device with good reproducibility by providing the following: an etching process of a superconducting thin film using a fluorine-based gas; alternatively, an etching and removing process of a protective film using the fluorine-based gas or oxygen gas. CONSTITUTION:First, this device is manufactured by a constitution including a process to etch a...

PURPOSE:To feed oxygen atoms into crystals forming a thin film by introducing gaseous oxygen into a chamber, being projected UV from a UV light source and repeatedly reflecting the projected UV by mirrors in the chamber. CONSTITUTION:A target T in a chamber 1 bombarded by ions in plasma generated by electric discharge in the chamber 1 and atoms released from the target T by the bombardment are dep...