Patent application number | Description | Published |
20090203166 | Zinc Oxide Materials and Methods for Their Preparation - A method for preparing p-type zinc oxide (ZnO) is described. The p-type ZnO is prepared by implanting low energy acceptor ions into an n-type ZnO substrate and annealing. In an alternative embodiment, the n-type ZnO substrate is pre-doped by implanting low energy donor ions. The p-type ZnO may have application in various optoelectronic devices, and a p-n junction formed from the p-type ZnO prepared as described above and a bulk n-type ZnO substrate is also described. | 08-13-2009 |
20120091451 | Zinc Oxide Nanostructures and Sensors Using Zinc Oxide Nanostructures - A method for preparing zinc oxide nanostructures using arc discharge is disclosed. The method comprises the provision of an anode and a cathode in an arc discharge chamber. Current is supplied to the anode and the cathode to establish an arc discharge between the cathode and the anode to vaporise the anode and produce zinc oxide nanostructures. Contemplated is the use of the zinc oxide nanostructures to produce components that have applications in, for example, optoelectronics, energy storage devices, field emission devices, and sensors such as UV photosensors, gas sensors and humidity sensors. Disclosed is a gas sensor and method for its production, where said method comprises the provision of a sensor substrate comprising a conducting thin film at least partially covering at least two regions on at least one surface of a sensor substrate material to define a gap in the conducting thin film, the application of a mixture of zinc oxide nanostructures and a non-ionic polymer to at least a portion of the gap i the conducting thin film to thereby bridge the gap. Optionally contemplated is a step of annealing the mixture of zinc oxide nanostructures and non-ionic polymer applied to said sensor substrate to produce the sensor component. | 04-19-2012 |
20130147586 | Magnetic Nanoclusters - A method for preparing magnetic materials is disclosed. The magnetic materials are prepared by implanting low energy magnetic ions into a substrate and annealing with a charged particle beam. Magnetic materials comprising magnetic nanoclusters in the near-surface region of a substrate are also disclosed. The magnetic materials are useful in, for example, magneto-electronic devices such as magnetic sensors. | 06-13-2013 |
20150090898 | ION SOURCE - The invention provides an ion source comprising first and second cathode pole pieces spaced apart from one another to form a cavity therebetween, an edge of the first cathode pole piece being spaced apart from an edge of the second cathode pole piece to define an elongate cathode gap between the respective edges of the pole pieces, the elongate cathode gap having a longitudinal axis; at least one magnet arranged for magnetising the first and second cathode pole pieces with opposite magnetic polarities; an elongate anode located in the cavity, the anode being spaced apart from the first and second cathode pole pieces and having a longitudinal axis, the longitudinal axis of the elongate anode and the longitudinal axis of the elongate cathode gap substantially coplanar; a first electrical connection which extends from outside the cavity to the anode; and a gas feed conduit which extends from outside the cavity to inside the cavity for introducing a gas into the cavity. | 04-02-2015 |
Patent application number | Description | Published |
20090197530 | Guard tour system utilizing mote networks - A guard tour system utilizing mote networks is disclosed. The system includes a web browser, a server and a plurality of motes in a network which communicate with one another using radio frequency communication. The motes have media readers associated therewith permitting the identification of guard tour officers and incident identifiers to be read from various types of media. The motes transmit guard tour data to the server via a radio frequency transceiver or a communication interface for analysis, reporting, notification or other purpose. Pre-existing mote networks can be utilized thus reducing the number of motes required for communication with the server or other computer utilized by the guard tour system. | 08-06-2009 |
20090289763 | Personal safety accessory device - A personal safety accessory device that is worn or carried by the user along with a communication device, such as a cellular telephone, is disclosed. In an emergency situation, the personal safety accessory device is actuated causing the accessory device to emit a short range radio frequency signal that is received by the communication device which attempts to establish a connection to a predetermined address. If a connection is established, the communication device transmits a message, which may consist of voice and/or data to the predetermined address. The connection may be automatically terminated after successful transmission of the message or the connection may remain intact until it is manually terminated. If the connection is not successfully established, the communication device will repeatedly attempt to establish the connection until it is successfully established or the connection has been manually terminated. Alternatively, the communication device will attempt to sequentially establish a connection to a predetermined list of addresses in order to transmit a message, which may consist of voice and/or data, to same. | 11-26-2009 |
20120313759 | Tracking system for persons and/or objects - An RFID-based tracking system that tracks persons and/or objects of interest without the need for triangulation techniques is disclosed. The system tracks persons and/or objects of interest by utilizing RFID antennas having a relatively small field of view and positioned relative to functional areas of a facility and/or within passageways between functional areas of the facility. The persons and/or objects of interest to be tracked are provided with an RFID tag. The present invention provides the system user with the ability to determine whether the persons and/or objects of interest are present within a particular functional area of the facility regardless of whether the presence of the person and/or object of interest is continuously detected by the system. | 12-13-2012 |
20140210617 | System to facilitate well-being checks - A system for checking the well-being of individuals within an institution is disclosed. The system is comprised of portable wireless devices in the possession of individual(s) who are to perform the well-being checks, a wireless communication network, and a computer device that is connected to the portable wireless devices by the wireless communication network. The computer device executes well-being software and is provided with well-being databases containing the well-being checks to be performed for each person, and has access to a tracking system. The tracking system determines the location of the person on whom such well-being checks are to be performed, the individual performing such well-being checks, and monitors and records whether such well-being checks have been performed. | 07-31-2014 |
20150015407 | Display system for tracking large numbers of persons and/or objects - A display system for tracking large numbers of persons or objects in real-time is disclosed. The display system utilizes a tracking system that employs various types of technologies, such as RFID, to determine the location of the person and/or objects being tracked. The displays of the present invention utilize colors, graphics, and the physical groupings of related data on a display device, usually a computer monitor, to present tracking information in a compact, readily changeable, and easily analyzed format in real-time. | 01-15-2015 |
Patent application number | Description | Published |
20090309256 | Method for stabilizing the spinning solution for production of cellulose composite molded bodies - The invention stabilizes spinning solutions used to produce cellulose composite molded bodies incorporating functional materials by the dry-wet extrusion method. The invention incorporates active materials detrimentally affecting the spinning process and materials which are unstable in the cellulose spinning solution, using separate active material and cellulose streams. The active material stream is produced, stabilized and stored separately and mixed with the cellulose stream directly before the forming apparatus, for example, a spinning bar. The active material stream includes amine oxide, functional materials, additives and water. The cellulose stream includes cellulose in amine oxide. The inventive method avoids heat build-up in the moulding or spinning solution, produces cellulose molded bodies with an adequately high degree of polymerisation and excellent functional properties and restricts the decomposition of the amine oxide. The interactions between cellulose and additive are restricted and storage life for the additive suspension improved. | 12-17-2009 |
20100003762 | Permanent chemical marker and identification of information in polymers - The invention relates to a process for chemical marking and identification of information in polymers and additives, such as ageing additives, thermal stabilizer additives, light stabilizer additives, plasticizer additives or flame retardant additives and dyes and other high-value additives. The marking is effected by the use of defined atomic masses in the form of isotopes of suitable elements in chemical compounds which are incorporated into the polymer matrix and anchored during the production. The result is a chemical code which can be recalled over the entire product life without adversely affecting the properties of the polymer through high concentrations of extraneous substances. It is possible by this process to trace back the origin of a polymer, to detect possible mixtures with chemically identical products from other manufacturers, or to clarify at a later stage whether an additive has been added in the concentration specified. | 01-07-2010 |
20100124861 | METHOD FOR THE PRODUCTION OF A BIOACTIVE CELLULOSE FIBER WITH A HIGH DEGREE OF WHITENESS - The invention relates to a method for the production of cellulose shaped bodies according to the dry-wet extrusion method (Lyocell method) with high degree of whiteness and bioactive action for use in the textile sector and paper production. In the context of the invention, the term “bioactive” refers to antimicrobial efficacy, based on the antibacterial action of the element silver, which is used as nanoscale reagent for increasing the efficacy thereof. The chemically inert and, at the same time, bactericidal effect is used in the production of sports and leisure clothing with a high degree of whiteness and papers with a long shelf life. Use is possible in the medical sector, for example, for wound dressings, textiles for hospitals, and in the filter and packaging industry. | 05-20-2010 |
20110045078 | PROCESS FOR PRODUCING CELLULOSIC SHAPED ARTICLES, CELLULOSIC SHAPED ARTICLES AND THE USE THEREOF - The invention relates to a process for producing cellulosic shaped articles with stabilized inclusions in a microfine dispersion of nonpolar organic compounds and mixtures by a dry-wet extrusion process. The shaped articles produced in this way exhibit by comparison with unmodified cellulose fibers a substantially increased storage capacity for heat and/or nonpolar active substances. They are suitable in particular for use in textiles for clothing, industrial textiles, leisure, medicine and cosmetics. Potential functional effects imparted include the physical effect of heat storage and/or the uniform and finely meterable storage and release of nonpolar active substances and plant extracts from the interior of the fibers of the shaped articles. It is possible through a suitable choice of the nonpolar portion to produce by this process also fibers capable of absorbing liquid or gaseous nonpolar substances. | 02-24-2011 |
20110135701 | Functional Cellulosic Moldings - The invention relates to cellulosic moldings having very finely distributed zinc pigments after the dry-wet extrusion method. Cellulosic moldings formed in accordance with the inventive methods, compared to unmodified cellulose fibers, have a high degree of whiteness combined with greatly increased UV light absorption and a wash-resistant bactericidal effect, while at the same time having unrestricted textile processability. The cellulosic functional moldings produced according to the invention are particularly suited for use in textiles for clothing, technical textiles, recreation, medicine, and cosmetics. | 06-09-2011 |