Abstract: A lighting system includes a first and a second controllable light sources generating, respectively, a first and a second lights; a first detector configured to receive at least a portion of the first light and measure at least one attribute thereof in a first predetermined location proximate to the first controllable light source; a memory configured to store at least one of a specification of the second controllable light source and at least one operating parameter of the first controllable light source. The system also includes a processor configured to receive the at least one attribute of the first light, and to control the second controllable light source to generate the second light having an attribute that substantially matches the attribute of the first light in a predetermined second location.

Abstract: The invention is directed to a treatment of diabetes, a scaffold and a method of preparing a scaffold. In a first aspect, this object is met by providing a scaffold comprising beta cell aggregates, wherein the aggregates are distributed over the scaffold in a predetermined pattern.

Abstract: A location commissioning method for a lighting system, having several lighting arrangements, includes selecting an illuminated position, assigning the position a position id, measuring light at the position, deriving light data associated with each lighting arrangement from the measured light, associating the light data with the position id, determining light transfer data from the light data and current drive data for the lighting arrangements, and storing in a light effect setting array for the position id. A light effect setting method includes requesting a selected light effect at a selected position, receiving a position id and a target light effect setting associated with the position, deriving the associated initial light effect setting array, for example by retrieving a stored one, determining the drive data for obtaining the target light effect setting, via the light transfer data in the array.

Abstract: The invention relates to receiving of a modulated light signal from a lighting device, particularly from a solid state lighting (SSL) device. It is an object of the present invention to provide a receiver and a receiving method which are primarily designed to operate efficiently for light (wave) signals that adhere to specific constraints. In order to achieve this object, the invention provides a receiver for a modulated light signal which is keyed with a code sequence of a predefined number of chips, comprising —a light sensor adapted to receive the modulated light signal and to convert it into an electrical signal, —sampling means adapted to take several consecutive samples of the electrical signal during a chip period, and —processing means adapted for calculating for each sample of a chip period an inner product with the chip.

Abstract: The present invention relates to ligands and catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using said ligands, the ligands having the general formula (I): (R1)2P—P(R1)m(R2)n?N(R3)??(I) wherein R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R1 groups are independently selected from an optionally substituted aromatic group bearing a polar substituent on at least one of the ortho-positions; and the R2 groups are independently selected from hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl groups with the proviso that when the group is aromatic it does not contain a polar substituent at any of the ortho-positions; with the proviso that m is 0 or 1, n is 1 or 2 and the total of m+n is 2.

Abstract: A method for driving a light source (11, 12, 13) is described, wherein the light source is alternately switched ON and OFF in an ON/OFF pattern, wherein the duty cycle of the ON/OFF pattern is varied to vary the average light intensity of the light source, and wherein the shape of the ON/OFF pattern is varied to transmit data. Thus, a control signal for the light source comprises data information as well as duty cycle information. The duty cycle is varied within a range from almost zero to almost 100%, and data is varied and transmitted without affecting the duty cycle.

Abstract: A method of treating a very high salinity high temperature hydrocarbon containing formation is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a hydrocarbon containing formation having a brine salinity of above about 13 wt % and a temperature of above about 7° C., wherein the composition comprises a C15-18 internal olefin sulfonate; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation.

Abstract: The present invention relates to catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using those ligands.

Abstract: Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. It is based on invisibly embedding of data and identifiers in their light output. Methods, devices and systems configured to efficient assignment of addresses in a coded lighting system, still allowing for unique identification, are proposed. More specifically, the assignment of addresses occurs in two phases, where in the initial phase wide area unique addresses are used, while in the second phase only local area unique addresses are used. Also, methods, devices and systems configured to efficiently distribute a set of addresses over a set of light sources in this second phase, to maximize the performance of the illumination contribution estimation, and positioning, are disclosed.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); (R8)(R1)P—N(R3)—P(R4)??(IV).

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI); (R9)(R10)P—N(R3)—P(R4)??(VI) wherein: the R9 and R10 groups are independently selected from optionally substituted alkyl or heteroalkyl groups; the R3 group is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the arylenedioxy, arylenedimercapto or arylenediamino structure.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting i) a compound having the general formula (III); (R1)(R2)P—N(R3)—R5??(III); and ii) a compound of the formula X—P(R4), preferably at a temperature in the range of from ?30 to 200° C.

Abstract: A method of and device for granting access to content on a storage medium, including obtaining cryptographic data from a property, such as a wobble, of the storage medium, reading helper data from the storage medium, and granting the access based on an application of a delta-contracting function to the cryptographic data and the helper data. The delta-contracting function allows the choice of an appropriate value of the helper data, such that any value of the cryptographic data which sufficiently resembles the original primary input value leads to the same output value. Substantially different values of the cryptographic data lead to different values of the output.

Abstract: A system for authenticating a physical object includes an enrolment device, an authentication device, and a storage for storing authentication data. The enrolment device includes an input for receiving a property set Y of the object measured using a measurement procedure. A processor is used for creating a property set I from the measured property set Y that meet a predetermined robustness criterion. It then creating a property set A from the property set I that includes less information on the actual properties than property set Y, and finally generates a control value V in dependence on properties of the property set A. An output is used for supplying the control value to the storage as part of the authentication data. The enrolment device operates in an analogous way.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (II); P(R1)(R2)—P(R4)?N(R3)??(II) wherein: the R1 group is selected from a hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl group; the R2 group is selected from a hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl group; the R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the pho

Abstract: The present invention relates to a system comprising at least one primary station and at least one secondary station, wherein the primary station comprises communication means for communicating with the secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and wherein the primary station comprises control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration.

Abstract: Controlling a lighting system, which comprises a controller (2, 10), lighting units (6), and a sensing device. Each lighting unit comprises a lighting source (12) and a modulated light source (14). A single light source may be used to function as both the lighting source and the modulated light source. Each modulated light source emits uniquely modulated light. A radiation pattern of each modulated light source coincides substantially with a radiation pattern of a lighting source of the same lighting unit. The sensing device is suitable to sense modulated light in a viewing area. Lighting units from which the sensing device senses modulated light are identified from the modulation of that modulated light. The sensing device measures the intensity of the modulated light from the identified lighting unit. The lighting sources are controlled dependent on control data which comprises measuring values of measured light intensities.

Abstract: Proposed is an illumination system (100) comprising a plurality of light sources (10) provided with encoders (20) arranged to enable light emitted from the light sources to comprise light source identification codes. In order to enable light effect commissioning, i.e. correlating the light sources (10) with their illumination footprints (11), the system further comprises a camera (40) arranged to register images of illumination spots (11), and a signal processor (111) arranged to derive the light source identification codes from registered images. Arranging the encoders (20) to modulate the light emitted at a frequency above a predefined high level to comprise fast codes (12) and at a frequency below a predefined low level to comprise slow codes (13), beneficially allows for the use of simple low cost camera systems.