Abstract: Aspects of the present disclosure are presented for an Embedded Data Transaction Exchange Platform (EDT-X) that generates marker data about relevant data of a transaction, and reliably stores the marker data in a permanent data storage, such as a block chain distributed ledger. The EDT-X platform does not generate the actual information that explains who was involved in the transaction or what the contents of the transaction were, but rather generates marker data that can reliably lead to tracing back to that information. The marker data may be permanently stored in a permanent data storage entity, such as a block chain distributed ledger. The data about the content of the transaction may be anonymously stored in a secure database, and the marker data pointing to the content of the transaction may be retrieved from the block chain distributed ledger to look up where the content data is stored in the secure database.

Abstract: A virtual image generation system comprises a planar optical waveguide having opposing first and second faces, an in-coupling (IC) element configured for optically coupling a collimated light beam from an image projection assembly into the planar optical waveguide as an in-coupled light beam, a first orthogonal pupil expansion (OPE) element associated with the first face of the planar optical waveguide for splitting the in-coupled light beam into a first set of orthogonal light beamlets, a second orthogonal pupil expansion (OPE) element associated with the second face of the planar optical waveguide for splitting the in-coupled light beam into a second set of orthogonal light beamlets, and an exit pupil expansion (EPE) element associated with the planar optical waveguide for splitting the first and second sets of orthogonal light beamlets into an array of out-coupled light beamlets that exit the planar optical waveguide.

Abstract: Aspects of the present disclosure are presented for an Embedded Data Transaction Exchange Platform (EDT-X) that generates marker data about relevant data of a transaction, and reliably stores the marker data in a permanent data storage, such as a block chain distributed ledger. The EDT-X platform does not generate the actual information that explains who was involved in the transaction or what the contents of the transaction were, but rather generates marker data that can reliably lead to tracing back to that information. The marker data may be permanently stored in a permanent data storage entity, such as a block chain distributed ledger. The data about the content of the transaction may be anonymously stored in a secure database, and the marker data pointing to the content of the transaction may be retrieved from the block chain distributed ledger to look up where the content data is stored in the secure database.

Abstract: Aspects of the present disclosure are presented for an Embedded Data Transaction Exchange Platform (EDT-X) that generates marker data about relevant data of a transaction, and reliably stores the marker data in a permanent data storage, such as a block chain distributed ledger. The EDT-X platform does not generate the actual information that explains who was involved in the transaction or what the contents of the transaction were, but rather generates marker data that can reliably lead to tracing back to that information. The marker data may be permanently stored in a permanent data storage entity, such as a block chain distributed ledger. The data about the content of the transaction may be anonymously stored in a secure database, and the marker data pointing to the content of the transaction may be retrieved from the block chain distributed ledger to look up where the content data is stored in the secure database.

Abstract: An explosive-resistant mine seal, which includes a pair of block walls. An adhesive is provided between adjoining surfaces of the blocks where the adhesive has greater strength properties than the blocks themselves. A core member is provided between the two walls and is bound thereto. The adhesive may be coated over the walls to increase the strength of the mine seal.

Abstract: Communication apparatus for communicating data between a processor on board a vehicle and a display for a user of the vehicle is disclosed. The apparatus includes a first light source operable to generate a modulated output representative of the data, a first receiver for receiving the modulated output of the first light source; and a communication device for communication between the receiver and the display. The first receiver is mounted on a suit worn by the user in operation of the vehicle. The communication apparatus is expected to be applicable, for example, with head-mounted displays used by pilots of aircraft.

Abstract: An explosive-resistant mine seal is provided, which includes a pair of block walls. An adhesive is provided between adjoining surfaces of the blocks where the adhesive has greater strength properties than the blocks themselves. A core member is provided between the two walls and is bound thereto. The adhesive may be coated over the walls to increase the strength of the mine seal.

Abstract: A method of winterizing a seasonal dwelling. The method involves replacement of water in a piping system within the dwelling with a winterizing fluid. The water inlet of the piping system of the dwelling is connected to a fluid outlet valve of a portable fluid tank. The portable fluid tank has the fluid outlet valve at a first end and a gas inlet located at a second end opposed to the first end. The portable fluid tank has the gas inlet connected to a valved source of air under pressure. Water outlets are opened within the dwelling and air is passed through the piping system. Subsequently, winterizing fluid is added to the fluid tank and then forced into the piping system. The method permits winterizing of a dwelling in a simple, rapid manner.

Abstract: A compound suitable for use as a charge transport compound in organic photoconductors or as a charge control agent in electrophotographic toners. The compound, in the neutral form, is of the Formula (1): ##STR1## wherein: Ar is of formula (a), (b) or (c) ##STR2## each L independently is H, C.sub.1-4 -alkyl or halo; R.sup.1, R.sup.3 and R.sup.4 are each independently alkyl, substituted alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl, cycloalkyl or allyl;R.sup.2 is an alkyl, aralkyl, cycloalkyl, allyl or aryl group which is unsubstituted or substituted by a group defined by X.sup.4 ; andX.sup.1, X.sup.2, X.sup.3, X.sup.4 & X.sup.5 are each independently H or a group capable of stabilising a positive charge on the adjacent carbon atom.

Abstract: A compound of Formula (1): ##STR1## wherein: Ar is ##STR2## R.sup.1 is alkyl, substituted alkyl, aryl or substituted aryl, aralkyl or substituted aralkyl;R.sup.2 is alkyl, substituted alkyl, aralkyl or substituted aralkyl;X.sup.1, X.sup.2 & X.sup.3 are each independently H or a group capable of stabilising a positive charge on the adjacent carbon atom; andX.sup.4 & X.sup.5 are each independently H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.1-4 -alkylthio;which is suitable for use as a charge transport compound in organic photoconductors or as a charge control agent in electrophotographic toners.