Abstract: A method of reducing the viscosity of oil-based drilling fluids and well service fluids at low temperatures and a thinner compound for use in such drilling fluids and well service fluids is disclosed. The method comprises adding to said drilling fluids or well service fluids a thinner having the formula: R—(C2H4O)n(C3H6O)m(C4H8O)k-H where R is a saturated or unsaturated, linear or branched alkyl radical having about 8 to about 24 carbon atoms, n is a number ranging from about 1 to about 10, m is a number ranging form about 0 to about 10, and k is a number ranging from about 0 to about 10.

Abstract: The invention relates to the use of compounds of general formula (I): R—O—SO—Li+, wherein R represents a saturated, unsaturated, branched or linear alkyl radical comprising 8-22 C-atoms, for cleaning boreholes, boring devices and borings.

Abstract: The invention relates to the use of ethoxylated derivatives of amidoamines corresponding to general formula (I): R1—OC—NR2—[(CH2)n—NR3]m—CO—R4 ??(I) In which R1, R2, R3 and R4 independently of one another represent a hydrogen atom, a branched or unbranched alkyl or alkenyl group containing 5 to 23 carbon atoms or a CO—CH=CH—COOH group and n is a number of 1 to 6 and m is a number of 1 to 8, as an emulsifier in drilling fluids which contain at least one continuous oil phase, an aqueous phase and typical additives.

Abstract: A system for dividing a workspace includes first and second vertically extending walls having a respective upper and lower edge and respective side edges. The first and second walls are arranged in parallel to partially enclose an area. A ceiling is included that extends between the first and second walls to join the upper edges of the first and second walls and at least partially cover the partially enclosed area. The resulting arch-shaped divider system may include any of a plurality of features. For example, the systems may include integrated work surfaces, informational areas, or may include viewing passages and may be arranged in a variety of configurations designed to facilitate collaborative work.

Abstract: An x-ray marker for medical implants made of a biocorrodible metallic material, the x-ray marker comprises a boride or carbide of the elements tantalum or tungsten.

Abstract: A magnesium alloy, comprising: Y: 0.5-10? Zn: 0.5-6?? Ca: 0.05-1?? Mn: ??0-0.5 Ag: 0-1 Ce: 0-1 Zr: 0-1 or Si: 0-0.4, wherein the amounts are based on weight-percent of the alloy and Mg, and manufacturing-related impurities constitute the remainder of the alloy to a total of 100 weight-percent. Also disclosed is a method for manufacturing such an alloy and a biodegradable implant formed therefrom.

Abstract: A stent having a structure made of a biocorrodible metallic material, having multiple web sections connected to one another, with a support structure made of a number of first web sections connected to one another, designed to assume a function supporting the vascular wall or preserving the mechanical integrity of the stent for a predefinable time after expansion; and at least one second web section electrically connected directly to a first web section of the support structure, which does not assume a function supporting the vascular wall or preserving the mechanical integrity of the stent for the predefined time after the expansion, and whose electrode potential E2 is reduced by a mechanical strain of the second web section during or before the expansion so it is lower than an electrode potential E1 of the first web section after the expansion.

Abstract: An x-ray marker for medical implants made of a biocorrodible metallic material, wherein the x-ray marker composite comprises 1-40 weight parts of a carrier matrix having a melting point greater than or equal to 43° C., which comprises 90 weight-percent or more triglycerides; and 60-99 weight parts of a radiopaque marker component, which is embedded in the carrier matrix.

Abstract: A system for dividing a workspace includes a wall designed to divide the workspace into a workspace and an area outside of the workspace. The wall includes a variety of features such as a slit extending horizontally across at least a portion of the wall at a level designed to provide individuals seated within the interior workspace with a constant view of the area outside of the workspace at both an immediate periphery of the wall as well as areas at a distance from the wall. Furthermore, the slit includes dimensions configured to provide individuals located in the area outside of the workspace with a view into the interior workspace when at a distance from the wall and restrict individuals located in the area outside of the workspace from views into the interior workspace when in close proximity to the wall. Also, the wall may include other feature such as a visual shield extending thereabove and a lining formed by a composite construction element.

Abstract: A magnesium alloy having Y, Zn, Ca, Mn, Ag, Ce, Zr, or Si.

Abstract: The invention relates to use of surfactant mixtures in drilling fluids, the mixtures are produced by reacting an aqueous solution of at least one alkyl oligoglycoside and/or alkenyl oligoglycoside with an omega haloacid, or its salts or esters in the presence of an alkali. The mixtures are suitable for use as emulsifiers for invert drilling-fluid systems and improve the filtration characteristics of the systems.

Abstract: The invention relates to the use of surfactant mixtures containing alkyl oligoglycosides and alkenyl oligoglycosides (APG) of formula (1), RO-[G]p, in which R represents an alkyl and/or alkenyl radical comprising between 4 and 22 carbon atoms, G represents a sugar radical comprising 5 or 6 carbon atoms and p represents numbers from 1 to 10, mixed with free fatty acids comprising between 6 and 22 C atoms. Preferably, said mixtures are suitable for use as emulsifiers for invert drilling-fluid systems.

Abstract: The invention relates to a borehole treatment composition containing an aqueous phase and a non-aqueous oil phase, emulsifiers and, where appropriate, further customary additives, the non-aqueous oil phase containing at least one of a) paraffins having from 5 to 22 carbon atoms; and b) internal olefins having from 12 to 30 carbon atoms in the molecule; in the form of a blend with c) carboxylic esters of the formula R—COO—R?, where R stands for a linear or branched, saturated or unsaturated alkyl radical having from 15 to 25 carbon atoms and R? denotes a saturated, linear or branched alkyl radical having from 3 to 22 carbon atoms. The ratio of the toxicity of internal olefins of chain length C16/C18 (standard IO) to the toxicity of the constituents of the non-aqueous oil phase, in each case measured by the Leptocheirus plumulosus acute, static 96 hour/10 day sediment toxicity test (in accordance with ASTM E 1367-92 & EPA/600/R-94/025, Section 11), is less than 1.

Abstract: A drilling fluid containing an aqueous phase and an oil phase and an ether carboxylic acid of the formula: RO(CH2CH2O)x(CH2CHR1O)yCH2—COOX wherein, R is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group containing 6 to 22 carbon atoms, x is a number from 1 to 20 and y is 0 or a number from 1 to 20, provided that the sum of x and y is at least 1 and at most 25, R1 is an alkyl group containing 1 to 4 carbon atoms and X comprises at least one member selected from the group consisting of a hydrogen atom, monovalent anions and polyvalent anions.

Abstract: A photodetector is formed in a semiconductor body. A hard mask grating is photolithographically formed on a surface of the semiconductor body. The semiconductor body is etched using the hard mask grating as a mask. The etching is performed down to a predetermined depth. An implantation is performed such that an anode or cathode of the photodector that has been interrupted during the etching is re-formed.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Abstract: An automation and platform management system for navel vessels configured to be operated from a multimedia information and operation control center. This automation and management system has a system for monitoring and commanding the ship, a system for navigating the ship, a system for coordinating weapons deployment, a system for handling the external and internal radio communications, a system for controlling and handling the information distribution, a system for power generation and distribution (power management monitoring), and a system for monitoring ship operations. To be able further to reduce the number of crewmembers of a ship equipped with the automation and management system, the automation and management system further has a system for automated ship damage control and/or an integrated onboard information and data network (2) and/or an integrated system for monitoring and control of a COPAW drive of the ship.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine, and an apparatus for performing such method, that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Abstract: A method of reducing the viscosity of oil-based drilling fluids and well service fluids at low temperatures and a thinner compound for use in such drilling fluids and well service fluids is disclosed. The method comprises adding to said drilling fluids or well service fluids a thinner having the formula: R—(C2H4O)n(C3H6O)m(C4H8O)k-H where R is a saturated or unsaturated, linear or branched alkyl radical having about 8 to about 24 carbon atoms, n is a number ranging from about 1 to about 10, m is a number ranging form about 0 to about 10, and k is a number ranging from about 0 to about 10.