Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.

Abstract: A method for removing a rubber element of a rotary control device includes closing an upper pulling ring around the rubber element, closing a lower stabilizing ring around a drill pipe stump, suspending the lower ring by a chain from the upper ring, connecting a hoist to the upper pulling ring, said lifting the drill stem until the chain tightens and the drill stem is pulled up through the rubber element so as to leave the rubber element free. The hoist is connected to a chain sling affixed to the upper pulling ring. The rubber element can then be released from the upper pulling ring.

Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.

Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.

Abstract: An apparatus for installing and removing a rotary control device insert or an element thereof has a first clamp with a receptacle suitable for receiving a flange of the rotary control device insert therein, a second clamp having an interior suitable for extending around a pipe, and a plurality of lines extending between the first clamp and the second clamp. The first clamp is movable between an open position and a closed position. The second clamp is movable between an open position and a closed position. Each of the clamps includes a first jaw and a second jaw connected to the first jaw by a hinged connection.

Abstract: The present invention relates to a gene expression and eradication system for Helicobacter pylori (H. pylori). In particular, the present invention relates to a genetic construct comprising, in the 5?-3? direction: (a) a promoter sequence and (b) a DNA sequence of interest, wherein the promoter sequence comprises a polynucleotide sequence capable of regulating expression of the DNA sequence of interest in Helicobacter pylori and wherein said promoter sequence is modified to comprise a tetracycline (tet) operator sequence.

Abstract: A handheld apparatus includes a body including a laser portion having a laser lens, a stylus portion having a conductive tip, and a connection portion coupled to the laser portion and the stylus portion. The connection portion has a charging port. The laser portion and the stylus portion are movable relative to each other between a first position, in which at least one of the laser portion and the stylus portion covers the charging port of the connection portion, and a second position, in which the charging port of the connection portion is exposed. The handheld apparatus also includes a power source positioned within the body and coupled to the charging port, and a laser module positioned within the laser portion. The laser module is operable to output a directed laser through the laser lens.

Abstract: A security apparatus for securing a portable device includes a shell configured to surround at least a portion of the portable device, an attachment device coupled to the shell, and a blocking element defining a clearance aperture. The blocking element is movably coupled to the shell for movement between a first position, in which the portable device is removable from the shell, and a second position, in which the portable device is secured within the shell. The attachment device extends through the clearance aperture of the blocking element when the blocking element is in the second position.

Abstract: A tool for removing a rubber element of an RCD from a drill stem, the tool having an upper pulling ring of a circumference sufficient to traverse around a rubber element, the ring having an open position and a closed position, the tool further having a lower stabilizing ring of a circumference sufficient to traverse around a drill pipe stump, the ring having an open position and a closed position, and the tool further having a plurality of chains suspending the lower stabilizing ring vertically below the upper pulling ring, as well as a hoist connection.

Abstract: The present invention relates to strains of Helicobacter pylori useful for the delivery of biologically active agents. In particular, the present invention provides an isolated strain of H. pylori having: (a) low pathogenicity; (b) ability to naturally transform; and (c) ability to colonise mouse stomach mucosa without host adaptation.

Abstract: A computer input apparatus, comprising: a base provided with a socket; a ball segment located in the socket and rotatable in the socket, the ball segment being shaped to support a wrist of a user; a handle attached to and extending away from the ball segment and configured such that when the user's wrist is supported by the ball segment, the handle is adjacent to the user's hand and maybe held by the user.

Abstract: A computer server system having a cooling mechanism, including a fan configured to cool the computer server system, wherein the computer server system includes a plurality of components, a first casing including the plurality of components and the fan, and a second casing including the fan, wherein the second casing includes a first bracket and a second bracket that latch together to enclose the fan, and wherein the second casing enclosing the fan is configured to provide complete isolation of the fan from the first casing.

Abstract: The air flow optimization apparatus includes a first member configured to attach to openings of an air vent on a server enclosure, such that the attachment of the first member to the air vent prevents air leakage. Further, the air flow optimization apparatus includes a second member configured to mount on top of a fan module connector within the server enclosure. A method for installing the air flow optimization apparatus includes inserting the first member into the openings of the air vent in a server enclosure, such that the first member includes attaching fins configured to be inserted into outer ends of the openings of the air vent. Further, the method for installing the air flow optimization apparatus also includes mounting the second member on top of a fan module connector, such that the second member includes engaging portions configured to engage with the fan module connector.

Abstract: Error correcting codes of any distance (including codes of distance greater than four) use only exclusive OR (XOR) operations. Any code over a finite field of characteristic two are converted into a code whose encoding and correcting algorithms involve only XORs of words (and loading and storing of the data). Thus, the implementation of the encoding and correcting algorithms is more efficient, since it uses only XORs of words—an operation which is available on almost all microprocessors. An important code, the (3, 3) code of distance four, is also described.

Abstract: An efficient method for finding all the possible corrections of a bust of length b and e random errors consists of finding a polynomial whose roots are the candidate location for l—the location of the beginning of the burst—thus avoiding the search over all possible values of l (it is assumed that the burst is non-trivial, i.e., at least one of its errors has a non-zero value). In order to reduce the number of spurious solutions, it is assumed that the number of syndromes is t=2e+b+s, where s is at least 2. The larger the value of s the less likely it is that the algorithm will generate “spurious” solutions. Once the location of the burst is known, standard procedures are used to determine the magnitudes of the burst errors and the location and magnitude of the random errors.

Abstract: Helicobacter based preparations comprising a pharmacologically active molecule of interest are disclosed, as well as methods of preparing and using said preparations. In particular, Helicobacter pylori vectors, vector plasmids and recombinant cells that include a sequence encoding a pharmacologically active molecule of interest useful in therapeutic treatments and/or vaccination against disease are provided. Delivery of the pharamacologically active molecules is provided at the mucosal surface, such as the gastric mucosa or nasal membranes, to provide effective and continuous delivery of a pharmacologically active agent. In some embodiments, the Helicobacter provides exposure of a desired molecule of interest though the surface of the Helicobacter, providing exposure of the antigen to the host at the gastric mucosa. Live Helicobacter pylori vaccines are also provided. Vectors and shuttle vector constructs of the Helicobacter are also disclosed.

Abstract: The Hamming distance of an array of storage devices is increased by generating a parity check matrix based on column equations that are formed using an orthogonal parity code and includes a higher-order multiplier that changes each column. The higher order multiplier is selected to generate a finite basic field of a predetermined number of elements. The array has M rows and N columns, such that M is greater than or equal to three and N is greater than or equal to three. Row 1 through row M?2 of the array each have n–p data storage devices and p parity storage devices. Row M?1 of the array has n?(p+1) data storage devices and (p+1) parity storage devices. Lastly, row M of the array has N parity storage devices.

Abstract: An error correction algebraic decoder and an associated method correct a combination of a B-byte burst of errors and t-byte random errors in a failed sector, by iteratively adding and removing an erasure (N?B) times until the entire failed sector has been scanned, provided the following inequality is satisfied: (B+2t)?(R?1), where N denotes the number of bytes, B denotes the length of the burst of errors, t denotes the total number of random errors, and R denotes the number of check bytes in the failed sector. This results in a corrected sector at a decoding latency that is a generally linear function of the number of the check bytes R, as follows: Decoding Latency=5R(N?B).