Abstract: Improved casing strings, and methods of using improved casing strings in subterranean operations, are provided. An example of a method is a method of cementing a pipe string in a subterranean formation. Another example of a method is a method of cementing a pipe string in a well bore. An example of an apparatus is an improved pipe string comprising at least one pipe section; and a delivery system of an activator; wherein the delivery system of an activator is disposed adjacent an outer surface of the at least one pipe section.

Abstract: Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of a set retarder. An example of a method is a method of cementing in a subterranean formation. Other examples of methods are methods of cementing in a subterranean formation comprising a well bore.

Abstract: A method having the following steps: running a circulation valve comprising a reactive material into the well bore on the casing; reverse-circulating an activator material in the well bore until the activator material contacts the reactive material of the circulation valve; reconfiguring the circulation valve by contact of the activator material with the reactive material; and reverse-circulating a cement composition in the well bore until the reconfigured circulation valve decreases flow of the cement composition. A circulation valve for cementing casing in a well bore, the valve having: a valve housing connected to the casing and comprising a reactive material; a plurality of holes in the housing, wherein the plurality of holes allow fluid communication between an inner diameter of the housing and an exterior of the housing, wherein the reactive material is expandable to close the plurality of holes.

Abstract: Methods of servicing a wellbore in contact with a subterranean formation include passing an ester-based fluid into the wellbore and reducing a temperature of the ester-based fluid by an amount effective to cause the ester-based fluid to set, e.g., by from about 10° F. to about 20° F. The ester-based fluid includes a water in ester-based oil emulsion, a pH controlling additive, e.g., hydrated lime, in the water-phase, and an emulsifier to stabilize the pH controlling additive. Cooling the ester-based fluid causes the emulsion to destabilize, resulting in the release of the pH controlling additive. This release lowers the pH of the ester-based fluid by an effective amount to cause it to set. Wellbore servicing fluids comprising the foregoing ester-based fluid may be employed as environmentally friendly sealants or spotting fluids in wellbores.

Abstract: A method for cementing a casing in an open well bore having no surface casing, wherein an annulus is defined between the casing and the well bore, the method having: sealing the annulus at the mouth of the well bore with a seal; pumping a cement composition into the annulus through the seal; and taking circulation fluid returns from the inner diameter of the casing. A system for cementing a casing in an open well bore having no surface casing, wherein an annulus is defined between the casing and the well bore, the system having: a seal of the annulus at the mouth of the well bore; a cement composition pump fluidly connected to the annulus through the seal; and a coupling connected to the exposed end of the casing for taking circulation fluid returns from the inner diameter of the casing.

Abstract: A method of initiating fluid circulation in a well bore through a casing inner diameter and an annulus outside the casing, the method having the following steps: inducing an increase in the annulus fluid pressure; flowing cement composition into the annulus at the top of the well bore; maintaining a difference in pressure between the fluid pressure of the casing inner diameter and the fluid pressure of the annulus until enough cement composition has entered the annulus to drive fluid circulation by the added cement composition weight.

Abstract: The invention relates to FMS-like tyrosine kinase (FLT3), FLT3 binding pockets or FLT3-like binding pockets. The invention relates to a computer comprising a data storage medium encoded with the structure coordinates of such binding pockets. The invention also relates to methods of using the structure coordinates to solve the structure of homologous proteins or protein complexes. The invention relates to methods of using the structure coordinates to screen for and design compounds that bind to FMS-like tyrosine kinase protein, complexes of FMS-like tyrosine kinase protein, homologues thereof, or FLT-3-like protein or protein complexes. The invention also relates to crystallizable compositions and crystals comprising an FMS-like tyrosine kinase cytoplasmic domain or homologues thereof. The invention also relates to methods of identifying inhibitors of the cytoplasmic domain of FMS-like tyrosine kinase protein.

Abstract: The present invention relates to subterranean fluids, and more particularly, to subterranean fluids comprising a hydraulic cement in an invert emulsion, and methods of using such fluids in subterranean operations. An example of a method of the present invention is a method of cementing a well bore. Another example of a method of the present invention is a method of reducing the cost to cement a well bore in a subterranean formation.

Abstract: An assembly for use in connecting optical fibers includes a housing (12) for optical fiber joints and a fiber routing device (70) associated with the housing. The housing has a first inlet (41) for receiving optical fibers from a primary side of an optical fiber network and a second inlet (13) for receiving optical fibers from a customer side of an optical fiber network. The fiber routing device (70) has an outlet (78) for feeding fibers from the customer side of the optical fiber network into the second inlet (13) and two inlets (72, 74) for receiving the customer-side optical fibers for feeding to its outlet.

Abstract: The present invention provides an assembly for use in connecting optical fibers. The assembly may comprise a plurality of housings for housing connections between optical fibers and a guide arrangement for guiding optical fibres into the housings. The guide arrangement may comprise a plurality of guide devices each having one inlet port for the passage of optical fibres into the guide arrangement and one outlet port for guiding optical fibers into the housing. The guide arrangement may also include one further inlet port for receiving optical fibres from another guide device and one further outlet port for guiding optical fibres to another guide device.

Abstract: A method and apparatus for monitoring electrical activity, such as brainwaves, in an animal comprising detecting said activity to produce a corresponding output signal, combining the output signal with a random noise signal to produce a modified signal, and analyzing the modified signal using an autocorrelation technique to detect the relative power density values at a plurality of different frequencies. The random noise signal may be a random number. The autocorrelation technique may involve the Yule-Walker method.

Abstract: A method and apparatus for monitoring electrical activity, such as brainwaves, in an animal comprising detecting said activity to produce a corresponding output signal, combining the output signal with a random noise signal to produce a modified signal, and analysing the modified signal using an autocorrelation technique to detect the relative power density values at a plurality of different frequencies. The random noise signal may be a random number. The autocorrelation technique may involve the Yule-Walker method.

Abstract: An assembly for use in connecting optical fibers includes a housing (12) for optical fiber joints and a fiber routing device (70) associated with the housing. The housing has a first inlet (41) for receiving optical fibers from a primary side of an optical fiber network and a second inlet (13) for receiving optical fibers from a customer side of an optical fiber network. The fiber routing device (70) has an outlet (78) for feeding fibers from the customer side of the optical fiber network into the second inlet (13) and two inlets (72, 74) for receiving the customer-side optical fibers for feeding to its outlet.

Abstract: The present invention provides an assembly 10 for use in connecting optical fibres, the assembly comprising a plurality of housings 12 for housing connections between optical fibres and a guide arrangement for guiding optical fibres into said housings 12. The guide arrangement comprises a plurality of guide devices 14 mounted side-by-side, each guide device 14 having at least one inlet port 22 for the passage of optical fibres into the guide arrangement, at least one outlet port 26 associated with a said housing 12 for guiding optical fibres into the associated housing 12. Each guide device 14 also comprises at least one further inlet port 28 for receiving optical fibres from another one of the guide devices when positioned adjacent the guide device 14 on one side thereof and at least one further outlet port 30 for guiding optical fibres to another one of the guide devices when positioned adjacent the guide device on another side thereof. The guide arrangement comprises at least two guide devices 14.

Abstract: A wetsuit structure (10) having a zipper (15) extending from a neck opening (14) of the wetsuit and down that portion of the wetsuit which, in use, will at least surround the upper part of the torso (11) of a wearer of the wetsuit. A barrier panel (16) of stretchable, substantially water proof, material is attached within the interior of the wetsuit adjacent to, and underlying, at least a major portion of the length of the zipper. The wetsuit structure also has a detachable neck or collar (17) of stretchable, substantially water proof, material adapted, in use, to be pulled over the head of the wearer while stretching in the process, but then relaxing to fit relatively tightly into sealing engagement around the neck of the wearer, and a series of press studs or snaps (18, 19) to detachably connect the neck or collar to the body of the wetsuit.

Abstract: A tool for withdrawing a shifter shaft from a transmission comprising a a smaller cylinder mounted concentrically on a largest cylinder. A concentric bore extending through the tool is dimensioned for a slip fit onto the shifter shaft. An open slot extending from end to end of said tool permits straddling the tool onto the shifter shaft. The smallest cylinder is then engaged with the a hole in the end of the shift lock wherein a flat surface on the outside surface of the smallest cylinder abuts flat section of inside surface of the shift lock. The tool is then used to rotate the shift lock so as to align one or more pins in the interior surface of the lock housing with internal grooves in the shift lock so as to permit separation of the shift lock and shifter shaft from the lock housing.

Abstract: A magnetic media storage system output circuit includes a filter for filtering an analog output signal from the storage media system before the analog output signal is provided to a read channel. Within the magnetic media storage system a read/write head reads data from a magnetic medium and provides an analog signal representing the data to an output circuit. The output circuit includes the filter for filtering the analog output signal and a pre-amplifier circuit for amplifying and transmitting the analog output signal to a read channel. Preferably, the filter has a linear frequency response and constant group delay below the cutoff frequency. Current on a write current control pin is used to control the cutoff frequency of the filter so that the cutoff frequency will track the data rate. An output signal from the storage media system output circuit is provided to a read channel.

Abstract: Multiposition valves are used for instance to interrupt a flow of pressure fluid that begins at a pressure source, such as a master cylinder, and leads to a consumer, such as a wheel brake. To that end, such multiposition valves have a valve seat, a valve seat closing body, an electromagnet which presses the valve closing body against the valve seat, and a valve opening spring, so that when the electromagnet is turned off, the valve closing body assumes an outset position spaced apart from the valve seat. To reduce noise production, especially when power is supplied in pulsed fashion to the electromagnet a further spring is provided that urges the armature in the direction of its outset position, so that when the valve opens, the armature can lead ahead of the valve closing body. The valve is advantageously usable in a hydraulic vehicle brake system where irritating noise production during operation is to be avoided.

Abstract: An electronic recording and display apparatus for performing the function of a chart recorder comprises a solid state display device controlled from a memory by a display controller. The memory receives signals in the form of 8-bit binary number digitized by a signal digitizer from an analogue input signal. the display device graphically displays a set of the signals stored in the memory and this can be "scrolled" through all the information stored in the memory in a manner similar to a chart recorder.

Abstract: Apparatus for electronically simulating the response of a direct current traction motor to predetermined operating states whereby there is provided a resultant signal representative of the torque that would be produced by an actual motor operating in the prescribed states. The apparatus calculates E per RPM for the simulated motor from measured values of available armature voltage and armature velocity. A function generator thereafter converts the E per RPM signal to a signal representative of the motor field current based upon known values for the simulated motor. The field current signal is converted to an armature current signal by a circuit which responds to the motor commanded state of field weakening to compute the instantaneous ratio of armature current to field current under the commanded conditions and thereafter multiplies the field current signal by that ratio to obtain a signal representative of armature current.