Abstract: Showerhead faceplates for semiconductor processing chambers are provided that include one or more sets of gas distribution passages therethrough that extend at least partially along axes that are at an oblique angle to the showerhead faceplate center axis. Such angled gas distribution passages may be used to tailor the gas flow characteristics of such showerhead faceplates to produce various desired gas flow behaviors in the gas that is delivered to the wafer via such showerhead faceplates.

Abstract: There is provided a technique capable of improving a processing uniformity between substrates. According to one aspect thereof, a substrate processing apparatus includes: a process vessel having a process region; a first nozzle having first holes, through which a first gas is supplied to substrates, arranged over the entire process region; a second nozzle having second holes, through which a second gas reacting with the first gas is supplied to the substrates, arranged over the entire process region; a third nozzle having third holes, through which an adsorption inhibitory gas inhibiting an adsorption of the first gas is supplied to the substrates, arranged corresponding to a part of the process region; and a gas supply system for supplying the first gas, the second gas and the adsorption inhibitory gas to the substrates through the first nozzle, the second nozzle and the third nozzle, respectively.

Abstract: Information is communicated to a process control device by performing a process that includes the step of heating a component, the component having structured volumetric regions. When the component is heated, structures present in the volumetric regions radiate in the infrared spectrum, allowing the structures to be distinguished by an infrared sensor. The structures, formed by elevations or depressions, form a machine-readable identifier, which can be used as an originality identification means for the component. Since the identifier can be determined in situ during a heating process, the process control device can recognize whether correction values are to be used for the thermal treatment of a substrate.

Abstract: Methods of enhancing the corrosion resistance of an oxidizable material exposed to a supercritical fluid is disclosed One method includes placing a surface layer on an oxidizable material, and choosing a buffered supercritical fluid containing a reducing agent with the composition of the buffered supercritical fluid containing the reducing agent chosen to avoid the corrosion of the surface layer or reduce the rate of corrosion of the surface layer and avoid the corrosion of the oxidizable material or reduce the rate of corrosion of the oxidizable material at a temperature above the supercritical temperature and supercritical pressure of the supercritical fluid.

Abstract: An effervescent suspension for metallic quenching and coating purposes, is implemented by providing and an effervescent tablet with mixture comprising a solid alkaline, a solid acid, and noble metal particles. The mixture is added to water to produce a reaction in the water resulting in the release of CO2 gas, which disperses the noble metal particles in the water to provide a suspension. A hot metal material, having a temperature below its melting point, is immersed in the suspension to provide a quenched metal that has a temperature below its melting point in the suspension to provide a quenched metal coated with noble metal particles. The solid alkaline may comprises sodium bicarbonate (NaHCO2) powder and sodium carbonate (Na2CO3) powder. The solid acid may comprise monosodium phosphate (NaH2PO4) powder.

Abstract: A nanostructure is made of a plurality of nanocrystals on at least one surface or surface region of a titanium body. A method for generating such nanostructure is by means of hydrothermal oxidation. Thereby, the nanocrystals have a basic tetragonal-pyramidal shape, at least in some regions. The area density of the nanocrystals is between 40 and 400 per ?m2, wherein the area density decreases with increasing crystal height. The average spacing of 50 to 160 nm of adjacent nanocrystals is obtained at a nanocrystal height of 23 to 100 nm. This provides a titanium-based, bactericidal and hydrophilic nanostructure for implant surfaces and, at the same time, a corresponding manufacturing method with which the size and distribution of the nanocrystals forming a nanostructure that facilitates healing can be determined.

Abstract: An acid solution preparation device is an acid solution preparation device for preparing an acid solution used for pickling of a steel plate, the device including a sealed tank for storing the acid solution, a gas supply part for supplying an oxygen-containing gas from outside of the sealed tank to the sealed tank, and a purge part for discharging a gas in the sealed tank to the outside.

Abstract: A rapid method of synthesizing nanoflowers made of nanoflakes of nickel molybdate (NiMoO4) directly on nickel foam (NF) through an aerosol-assisted chemical vapor deposition (AACVD) process is disclosed. The nickel molybdate nanoflowers were grown on NF by varying the deposition time for 60 and 120 min at a fixed temperature of 480° C. and their efficiency was investigated as oxygen evolution reaction (OER) catalysts in 1 M KOH electrolyte. The NiMoO4 nanoflowers of NF obtained after 60 minutes of AACVD process showed OER performance with lowest overpotential of 320 mV to reach standard current density of 10 mA cm?2. The catalyst continuously performed the OER for 15 h, signifying its prominent stability under electrochemical conditions.

Abstract: A CoVOx composite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 ?m thick layer of CoVOx having pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOx composite electrode is capable of being used in an electrochemical cell for water oxidation.

Abstract: In one aspect, the disclosure relates to catalysts for electrochemical water splitting, in particular catalysts useful for oxygen evolution at an anode in electrochemical water splitting. The disclosed catalysts compositions comprise a catalyst core component, a shell component, and optionally a catalyst outer component; wherein the catalyst core component comprises a composition having the chemical formula MxPy; where M is a transition metal; wherein x is a number from about 1 to about 20; wherein y is a number from about 1 to about 20; wherein the shell component comprises a conducting polymer; and wherein the catalyst outer component is a transition metal that is not the same as the transition metal M. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Abstract: Methods and systems related to oxocarbon electrolyzers are disclosed herein. A disclosed system includes an oxocarbon electrolysis reactor with an anode area with an oxidation substrate, cathode area with an oxocarbon species as a reduction substrate, and an electroneutral separator separating the anode area and the cathode area while allowing ionic migration between the anode area and cathode area. The electroneutral separator may be a porous electroneutral separator. The oxocarbon electrolyzer may also include a conductive electrolyte applied to the separator. Ionic migration between the anode area and the cathode area may be accomplished via the conductive electrolyte in the porous electroneutral separator.

Abstract: A power control device for an electrolyzer that is configured to encode power curtailment information as a DC bus voltage level using a DC droop characteristic in first stage and decode the DC bus voltage to power information in a second stage.

Abstract: The disclosure discloses a membrane electrode assembly (MEA) for electrochemically converting carbon monoxide (CO) into ethylene (C2H4) under applied current density, the MEA comprising: a cathode; an anode; an anion-exchange membrane (AEM) to separate the cathode from the anode; an anolyte; a reactant inlet in fluid communication with the cathode to provide a CO-enriched gas component; and a product outlet in fluid communication with the cathode to release a product mixture comprising C2H4; wherein the cathode comprises: a first layer including adsorption sites to adsorb CO as CO* intermediates; a second layer that facilitates stabilization of the CO* intermediates for adsorption onto the adsorption sites of the first layer; and a third layer that facilitates diffusion of CO to the adsorption sites of the first layer.

Abstract: A system and method for generating arsine are disclosed. The system may include a shell having a top interior surface. The system may also include a cathode-anode assembly positioned in the shell and forming an elongated structure substantially parallel to the top surface. The cathode-anode assembly may include a first electrode and a second electrode surrounding the first electrode and forming a gap therebetween. The second electrode may include a plurality of channels along a length of the second electrode. The plurality of channels may allow circulation of electrolyte within and around at least a portion of the cathode-anode assembly and allow gases generated in response to current applied to the cathode-anode assembly to escape from the cathode-anode assembly. Such gases may be used as precursor gases for a high-volume metal-organic chemical vapor deposition (MOCVD) operation.

Abstract: A hydrogen system includes a compressor that includes an electrolyte membrane, an anode on a first primary surface of the electrolyte membrane, a cathode on a second primary surface of the electrolyte membrane, and a voltage applicator that applies a voltage between the anode and the cathode, the compressor producing compressed hydrogen by causing the voltage applicator to apply a voltage between the anode and the cathode to move hydrogen in hydrogen-containing-gas containing steam supplied to the anode to the cathode via the electrolyte membrane; a supply path through which the hydrogen-containing-gas containing steam to be supplied to the anode flows; a cooling mechanism disposed in the supply path; and a heat exchanger disposed in the supply path, the heat exchanger exchanging heat between the hydrogen-containing-gas flowing through the supply path upstream of the cooling mechanism and the hydrogen-containing-gas flowing through the supply path downstream of the cooling mechanism.

Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.

Abstract: The invention relates to an electrode assembly for an electrochemical process comprising a current supply element comprising at least one recessed hole; at least one current distribution bar comprising a first end portion and a second end portion, the first end portion being releasably arranged at the at least one recessed hole; and an electrode substrate arranged at the at least one current distribution bar. The current distribution bar comprises a core and an outer layer, the core being completely covered by the outer layer. The invention also relates to a method of restoring the electrode substrate of the electrode assembly without removing the electrode substrate from the at least one current distribution bar.

Abstract: Methods are provided for forming a coating on a surface of a substrate. The method may include: applying a negative charge to the surface of the substrate; electrophoretically depositing a slurry layer onto the surface of the substrate; and densifying the slurry layer on the surface of the substrate at a sintering temperature to form a sintered layer of the coating. The slurry layer may include a plurality of EBC material particles, a cationic polyelectrolyte, a plurality of polymeric binder particles, and a solvent. The plurality of EBC material particles may comprise barium strontium aluminosilicate (BSAS), mullite, silicon, rare earth compounds, or combinations thereof.

Abstract: An electrochemical treatment system includes a treatment fluid supply manifold, a fluid return manifold, and an electrode section connected to the treatment fluid supply manifold. A plurality of treatment fluid supply ports feed fluid through or across the electrode and a plurality of fluid return ports proximate the treatment fluid supply ports are connected to the fluid return manifold. A porous pad is coupled to the electrode section for contacting a substrate to be treated and receives the treatment fluid via the plurality of treatment fluid supply ports. The plurality of fluid return ports remove spent and excess treatment fluid and gases from the substrate, the surrounding air, and the porous pad.

Abstract: Localized electrochemical deposition (LECD) is provided. The aim of LECD is to create a patterned electrodeposited metal layer on a cathode without the use of pre-deposition patterning steps. In embodiments described herein, an LECD device includes a cathode (a material to be plated) placed sufficiently close to a formation anode in a metal electrolyte chemical bath. The LECD device is then activated electrically in solution. An electric field created by the formation anode determines the locations of metal deposition, providing a localized deposition without need for photolithography or other masking of the material to be plated.

Abstract: The present invention relates to a carrier foil-attached metal foil including a release layer having a specific composition and structure, a method of manufacturing the carrier foil-attached metal foil, and a laminate for forming a printed circuit board including the carrier foil-attached metal foil. The laminate for forming a printed circuit board according to the present invention comprises the carrier foil-attached metal foil, so that a defect rate can be minimized.

Abstract: A method forms one or more diamonds. The method provides a growth chamber having a gas environment. A single crystal diamond substrate is positioned within the growth chamber. Diamond material is deposited on the single crystal diamond substrate for epitaxial growth. The single crystal diamond substrate has a given crystal orientation. Growth is continued at a prescribed temperature, prescribed pressure, and with a prescribed gas content for the gas environment. The prescribed gas environment has a nitrogen concentration of greater than about 0.5 ppm and less than about 5.0 ppm. The prescribed temperature is greater than about 650 degrees C. and less than about 950 degrees C. The prescribed pressure is greater than about 130 Torr and less than about 175 Torr.

Abstract: An object is to provide a SiC wafer in which a detection rate of an optical sensor can improved and a SiC wafer manufacturing method. The method includes: a satin finishing process S141 of satin-finishing at least a back surface 22 of a SiC wafer 20; an etching process 21 of etching at least the back surface 22 of the SiC wafer 20 by heating under Si vapor pressure after the satin finishing process S141; and a mirror surface processing process S31 of mirror-processing a main surface 21 of the SiC wafer 20 after the etching process S21. Accordingly, it is possible to obtain a SiC wafer having the mirror-finished main surface 21 and the satin-finished back surface 22.

Abstract: A boron nitride layer and a method of fabricating the same are provided. The boron nitride layer includes a boron nitride compound and has a dielectric constant of about 2.5 or less at an operating frequency of 100 kHz.

Abstract: A newly developed generalizable screening method enables efficient identification of epitopes, in the proteomes of pathogenic agent is provided. Also disclosed are systems that enable the method as well as epitopes discovered using the method.

Abstract: The present invention generally relates to bacterial polypeptide display systems, libraries using these bacterial display systems, and methods of making and using these systems, including methods for improved display of polypeptides on the extracellular surface of bacteria using circularly permuted transmembrane bacterial polypeptides that have been modified to increase resistance to protease degradation and to enhance polypeptide display characteristics.

Abstract: Methods are provided for multiplexed amplification of selected targets and analysis of the amplified targets. In preferred aspects the amplification and analysis take place on the same solid support and preferably in a localized area such as a bead or a feature of an array. In preferred aspects the analysis is a determination of sequence at one or more locations in the amplified target. The methods may be used for genotyping, sequencing and analysis of copy number.

Abstract: The present invention provides methods for preparing an alpha-keratin solution comprising alpha-keratin protofibrils and intermediate filaments in liquid crystal phase and uses thereof for fabricating, e.g., shape-memory polymeric fibers, yarns, threads, fabrics, structures and objects.

Abstract: The method for producing wet spun fibers/a wet formed film using a double-walled pipe type micronozzle apparatus according to the present invention is a production method, wherein, in a step of extruding an internal phase comprising a fiber/film material and a good solvent for the fiber/film material in a linear form from the circular/rectangular end of the internal pipe of the apparatus into an external phase comprising a poor solvent for the fiber/film material, the external phase flowing in the external pipe of the apparatus, the ratio of the external phase flow rate to the internal phase flow rate is set to 1 or more, and further for the wet spun fibers, the external phase line speed at the orifice portion at which the internal phase and the external phase merge is set to 0.1 ms?1 or more.

Abstract: The present provides an electrospinning apparatus for fabricating a nanofiber of core-shell structure, including a high-voltage electrostatic generator, a frame and a liquid brusher. A horizontally moving means is connected to the frame, and the horizontally moving means is connected with the liquid brusher. A chain-drive mechanism and a first reservoir are provided below the liquid brusher, the chain-drive mechanism includes a first sprocket and a second sprocket, and a chain is connected between the first sprocket and the second sprocket. The chain is engaged with a spray sprocket, and the spray sprocket is connected with a first motor via a revolving shaft. A core solution is contained in the first reservoir, and the lower portion of the spray sprocket is immersed in the core solution. The horizontally moving means drives the liquid brusher to move along the chain, and the liquid brusher brushes the shell solution over the chain.

Abstract: Systems and methods for focused direction deposition of a micron or nanometer dimension polymeric fiber and materials of such fibers are described herein. Systems and methods employ one or more gas flows to entrain and deflect fibers produced by a rotary jet spinning system forming a focused fiber stream. Some embodiments enable control of alignment and distribution of the fibers with a relatively high fiber throughput.

Abstract: Fibers that are formed from a thermoplastic composition that contains a rigid renewable polyester and has a voided structure and low density are provided. To achieve such a structure, the renewable polyester is blended with a polymeric toughening additive in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. Fibers are thereafter formed and then stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”).

Abstract: A continuous automatic twisting, and winding device and method for the polymer fiber artificial muscle are provided. The device includes a wire feeding mechanism, polymer fibers, a twisting mechanism, a winding mechanism, a translation mechanism, and a base plate. The center axis of the rolling bearing I in the wire feeding mechanism is horizontally aligned with the center axis of the spline shaft in the winding mechanism; the polymer fibers are generally nylon fibers, polyester fibers, etc.; the twisting mechanism, winding mechanism and the translation mechanism are mounted on the base plate; the twisting mechanism articulation seat in the twisting mechanism is fixed on the front support seat in the winding mechanism; the mounted bearing in the translation mechanism is connected to the spline shaft in the winding mechanism by interference fit. The guide rod in the translation mechanism is mounted on the rear support seat in the winding mechanism.

Abstract: An open-end spinning device having a thread draw-off nozzle and a thread draw-off nozzle for an open-end spinning device, the thread draw-off nozzle having a thread-guiding surface which extends between an entry opening and a draw-off opening and which tapers in the shape of a funnel toward the draw-off opening. In order to provide a thread draw-off nozzle and an open-end spinning device having a thread draw-off nozzle which allows controlled production of the thread, the thread draw-off nozzle has a blocking element, which protrudes from the thread-guiding surface and which has a thread stop surface designed such that the thread stop surface blocks a thread from circulating over the thread-guiding surface.

Abstract: A composite yarn spun of separate fibers may include a soybean fiber; a cellulose fiber with incorporated organic seaweed; and a Ramie fiber. A knitted fabric composition may include yarns as defined above.

Abstract: The fabric with embedded dispensing channels includes a fabric sheet with at least one flexible conduit integrated into the fabric sheet. The at least one flexible conduit has an inlet and a plurality of dispensing holes formed through at least one wall thereof. The at least one flexible conduit is hollow and defines an interior channel. Opposite the inlet, the at least one flexible conduit may have a closed end. A pump, compressor or the like may be fluidly connected to the inlet for transferring a substance into and through the at least one flexible conduit for dispensing through the dispensing holes.

Abstract: A fabric-based item may include a housing that is covered in fabric. Areas of the fabric may overlap input circuitry such as button switches, touch sensors, force sensors, proximity sensors, and other sensing circuitry and may overlap other components such as light-emitting components and haptic output devices. The fabric-based item may include control circuitry that gathers user input from the input circuitry and wireless communications circuitry that the control circuitry uses to transmit remote control commands and other wireless signals in response to information from the input circuitry. The fabric-based item may have a weight that is located in the housing to orient the housing in a desired direction when the housing rests on a surface. A movable weight may tilt the housing in response to proximity sensor signals or other input. Portions of the fabric may overlap light-emitting components and optical fiber configured to emit light.

Abstract: Disclosed herein is a knitted multi-layer fabric construction that provides the ability to cool skin to below a current temperature whether wetted or dry. The knit uses four separate yarns which collectively work together to produce enhanced cooling. Knits can include warp knit, seamless, hosiery, flat bed, spacer, and double knits. Various finishing methods may also be employed to enhance the cooling power of the fabric.

Abstract: Example knitting needle connector assemblies, e.g., for a knitting needle or crochet tool, may include first and second members. The first member may be generally cylindrical and have a radially facing slot extending circumferentially about a longitudinal axis of the first member. The second member may have one or more radially projecting pins received in the slot, wherein the one or more pins are movable about the circumferentially extending slot such that the first member is rotatable with respect to the second member about the longitudinal axis.

Abstract: A system for in-line treatment of thread for use with a thread consuming device is provided. The system includes a treatment unit including at least a first and a second print head each being configured to dispense one or more coating substances onto the at least one thread when activated; and a control unit configured to determine if a maintenance sequence is to be performed on at least the first print head, and if so schedule said maintenance sequence on at least the first print head. A method is further provided.

Abstract: The invention relates to methods for providing crimped bast fibers which may include providing an input of bast fibers, adjusting the moisture content of the bast fibers to be in the range of about 10% to about 40% by weight to form a fiber mat, and contacting the fiber mat with a pair of heated crimping rolls to provide crimped bast fibers having a crimp of about 1 to about 10 crimps per centimeter. The invention further provides for a nonwoven fabric comprising at least 5% of the crimped bast fibers. The crimping of the bast fibers in these nonwoven fabrics is beneficial to forming a drylaid, airlaid or wetlaid nonwoven fabric that has desirable properties related to performance in a variety of nonwoven product applications.

Abstract: Provided with a thread standing device capable holding a thread with excellent workability and a sewing machine provided with the thread standing device. A thread standing device includes: a spool pin around which a thread reel is inserted; a thread hooking base on which a thread wound around the thread reels is hooked; and a thread holding slider which is slidable with respect to the thread hooking base, the thread holding slider being movable between a first position for covering a thread hooking portion of the thread hooking base and a second position for exposing the thread hooking portion, the thread being hooked on the thread hooking portion, wherein the thread hooked on the thread hooking portion is held when the thread holding slider is slid to the first position.

Abstract: A tufted article (e.g., an artificial turf panel) having a backing and a plurality of tufts extending through the backing. The plurality of tufts are distributed among a plurality of patterned regions. Each patterned region has at least one tuft of the plurality of tufts. The tufts of each patterned region differ from the tufts of at least one other patterned region of the tufted article in at least one of color, pile height, yarn type, or yarn density. At least one patterned region creates a longitudinal discontinuity in the color pattern of the tufted article. The tufted article does not have a seam. Complementary side edges of the tufted articles can be secured together to form at least a portion of the surface covering without the need for cutting or the use of inlay components.

Abstract: An embroidery system includes a coloring device to color a thread. The embroidery system includes an embroidery device to perform embroidery of an embroidery design and underlay stitching. The embroidery device uses the thread colored by the coloring device for at least one of the embroidery of the embroidery design or the underlay stitching. The embroidery system includes circuitry to: create data of the embroidery design and the underlay stitching according to embroidery image data; create color data for coloring the thread to be used for coloring the at least one of the embroidery of the embroidery design or the underlay stitching; acquire roughness data representing roughness impression of the embroidery image data; and change an embroidery density of the embroidery design according to the roughness data.

Abstract: An article of footwear is formed with an upper including a ribbon structure. Ribbon elements can be laid down in straight and winding sections, and the ribbon elements can be stitched or attached to a backing layer. A periphery of the ribbon structure can be embroidered to tack down any raised portions of the ribbon at the periphery.

Abstract: A laundry washing machine and method utilize a fluid property sensor to sense a fluid property of a fluid during a wash cycle to sense the level of detergent remaining in a load and control a rinse operation performed thereafter based upon the sensed fluid property. In some instances, the fluid property may be sensed while the load is being spun at a rate sufficient to cause fluid to be released from the load such that the sensed fluid property is based at least in part on fluid that was previously absorbed into the load. In addition, in some instances, the fluid property may be sensed during a spin phase of a wash cycle to selectively cause a wash cycle to selectively revert to an additional rinse phase when required, or otherwise proceed directly to the remainder of the spin phase to complete the wash cycle.

Abstract: A front-load laundry appliance includes a drum that is rotationally operable within a tub about a generally horizontal rotational axis. A plurality of lifters are coupled to an interior surface of the drum. A fluid delivery path is at least partially defined within the drum and the plurality of lifters. A fluid delivery system delivers fluid into the fluid delivery path in a direction parallel to the generally horizontal rotational axis.

Abstract: A laundry treating apparatus includes a drum body, a front cover, a rear cover, a fixed panel spaced apart from the rear cover, a housing fixed to the fixed panel, a stator, a rotor, a ring gear fixed in the housing, a first shaft fixed to the rotor and located in the housing, a driver gear located within the housing and fixed to the first shaft, a second shaft that is concentric with the first shaft, fixed to the rear cover, and located within the housing, a base located within the housing and coupled to the second shaft, and a driven gear having a first body rotatably fixed to the base, a first gear defined at the first body and engaged with the driver gear, a second body fixed to the first body, and a second gear defined at the second body and engaged with the ring gear.

Abstract: A washing machine comprising a housing (2), an outer tub (15) for receiving washing liquid, a drum (16) mounted rotatably in the outer tub (15) for receiving laundry, a metering device configured to receive at least one cartridge (9a, 9b) and to meter detergent (12a, 12b) contained in the cartridge (9a, 9b) into one or the outer tub (15) and the drum (16). The housing (2) accommodates the outer tub (15), the drum (16) and the metering device and has a housing flap (5) in front of the at least one cartridge (9a, 9b). The housing flap (5) is at least partly transparent or has at least one opening such that when the at least one cartridge (9a, 9b) is arranged in the metering device, a fill level of the at least one translucent cartridge (9a, 9b) is at least partly visible from outside the housing (2).

Abstract: Provided is a photoactivating device (100) for deployment in a washing machine for activating one or more photoactive components in a laundry treatment composition, comprising: a light source (160) configured for emission of light for activation of the one or more photoactive components; a controller (180), and a switch and/or a motion sensing unit (170), wherein the controller (180) is configured to control the light source (160) responsive to the switch and/or signals received from the motion sensing unit (170).