Abstract:
A method of constructing a voided drilled shaft concrete structure is provided. Drilled shafts are large-diameter cast-in-place concrete structures that can generate extremely high temperatures during the concrete hydration/curing phase. When this temperature exceeds safe limits, the concrete does not cure correctly and will ultimately degrade. Minimizing the peak temperature (and the associated defects) can be undertaken by casting the shafts without concrete in the core (forming a void) thereby removing a large amount of energy producing material in a region that is least likely to benefit the structural capacity and that is less able to dissipate the associated core temperatures due to the presence of the more peripheral concrete.
Abstract:
An apparatus for forming a lesion in tissue along a desired ablation path includes a guide member having a tissue-opposing surface for placement against a heart surface. A guide carriage is sized to be received within the guide member and moveable therein along a longitudinal axis. A flexible tubular member extends from a proximal end of said carriage and through a length of the guide member with the tubular member adapted to move the carriage within the guide member upon application of a force to the tubular member. A system urges the carriage to move in a path along an axis of the guide member by amount substantially identical to a displacement of a force application location on the flexible tubular member.
Abstract:
An apparatus for forming a lesion in tissue along a desired ablation path includes a guide member having a tissue-opposing surface for placement against a heart surface. A guide carriage is sized to be received within the guide member and moveable along a longitudinal axis of the guide member. A tubular member extends from a proximal end of the carriage and out a proximal end of the guide member. An ablation element is carried in the carriage for movement. The ablation member is connected to a source of ablation energy through the tubular member. A sensor is provided for sensing a safety condition. The sensor is connected to a monitor external the guide member.
Abstract:
A technique for steering a directional antenna such as may be used in a Wireless Local Area Network (WLAN) device. The technique detects signal parameters during reception of short sync pulses in the very beginning portion of a Packet Protocol Data Unit (PPDU) frame. As a result, the antenna can be steered to an optimum direction for reception prior to receiving other portions of a preamble that may be needed to acquire carrier signal phase and frequency.
Abstract:
A metal chelate compound of Formula: (1) or a salt thereof: [A-N═N—B] M (1) wherein: A is a 5- or 6-membered heterocyclic ring other than a triazole ring, optionally carrying one or more substituents; B is of the Formula (2a) or (2b). Formula (2a) (2b) wherein: X, Y and W are substituents other than H; M is a metal chelated to A-N═N—B; and n is 0 to 4. Also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and an inkjet printer cartridge containing the ink.
Abstract:
An access point operates in an 802.11 wireless communication network communicating with a client station, and includes a smart antenna for generating directional antenna beams and an omni-directional antenna beam. An antenna steering algorithm scans the directional antenna beams and the omni-directional antenna beam for receiving signals from the client station. The signals received via each scanned antenna beam are measured, and one of the antenna beams is selected based upon the measuring for communicating with the client station. The selected antenna beam is preferably a directional antenna beam. Once the directional antenna beam has been selected, there are several usage rules for exchanging data with the client station. The usage rules are directed to an active state of the access point, which includes a data transmission mode and a data reception mode.
Abstract:
A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink containing a metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; each W independently is a carboxy or carbonamido group; each X independently is a substituent other than H, sulphonamido, carboxy, sulpho and carbonamido; J is a sulphonamido group; M is a metal or boron; a, p, q and n are each independently 0, 1, 2, 3 or 4; and (p+q+a+n) is 0, 1, 2, 3 or 4. Also claimed are compounds of Formula (1), compositions and inks containing a compound of Formula (1) and an ink jet printer cartridge containing the ink.
Abstract:
An ink-jet printing process comprising the steps (a) and (b) in any order or simultaneously: (a) applying an ink to a substrate by means of an ink-jet printer to form an image on a substrate; and (b) applying to the substrate a fixing composition comprising a liquid medium and a polymer containing a plurality of monoguanide and/or biguanide groups by means of an ink jet printer; characterised in that in the fixing composition has a chloride concentration less than 400 ppm by weight.
Abstract:
An ink-jet printing process including the steps (a) and (b) in any order or simultaneously: (a) applying an ink to a substrate by means of an ink-jet printer in a localized manner to form an image on the substrate; and (b) applying to the substrate a composition including a liquid medium and a poly(C3-18-hydrocarbyl monoguanidine) or a salt thereof by means of an ink-jet printer. also a substrate printed by means of this process, compositions including poly(C3-18-hydrocarbyl monoguanidines), sets of liquids for use in ink-jet printing and ink-jet printer cartridges. The process avoids the need for expensive special papers previously used for ink jet printing.
Abstract:
A container comprising an inner vessel disposed within an outer vessel, wherein the inner vessel embodies a three-dimensional design that can be viewed from the exterior of the outer vessel.