Abstract: A combustion system for combusting air and fuel includes a primary combustion zone configured to produce combustion gases from the air and the fuel and an intermediate air zone downstream from the primary combustion zone. The intermediate air zone is configured to inject an intermediate air stream into the combustion gases. The combustion system further includes a burnout zone downstream from the intermediate air zone, wherein the burnout zone is configured to inject an overfire air stream into the combustion gases, and at least one hybrid-boosted air injector within at least one of the intermediate air zone and the burnout zone. The at least one hybrid-boosted air injector is configured to substantially simultaneously inject a boosted air stream and a windbox air stream into the combustion gases.

Abstract: A fruit tree bonsai planting method includes primarily grafting a scion with a stock by an inarching method, with an inarched location being fastened tightly by a tape. A lower part of the scion is cut off when the inarched location is healed and then the stock is transplanted to a pot with fertile soil for fixing, thereby forming a fruit tree bonsai having an indoor decorative condition and edible fruits.

Abstract: An extension for use with a planter, drill, or other farming implement having a seed tube that deposits seed in a furrow. The extension defines protrusions for attaching one or more liquid distribution apparatuses arranged to distribute liquid in a furrow well above the seeds, on the seeds, or both.

Abstract: A slope planting structure includes containing bags laid on the surface of a slope, stuffing filled in the containing bags, and fasteners. The containing bags are provided with plant seeds. The stuffing composed of plant growing material and absorbent material is filled into the containing bags. The containing bags are laid on the surface of the slope, and then the fasteners are inserted through the containing bags to secure the containing bags on the slope. The containing bags are integrated with the slope to secure the slope, providing protection and green effects.

Abstract: The invention relates to a geomat for preventing erosion, for recultivating fallow land and for cultivating plants, said mat being completely biodegradable, cost-effective and simple to produce and fulfilling all ecological requirements. According to the invention, the geomat substantially consists of a continuous strand (1) of untreated sheep's wool, arranged in a serpentine to form the desired width of the mat and held together in a longitudinal direction.

Abstract: A sewing machine including a presser foot that presses a workpiece, a presser bar that has a lower end allowing detachable attachment of the presser foot; a presser bar vertically moving mechanism that moves the presser bar up and down; a presser bar driver that drives the presser bar vertically moving mechanism; a needle plate that has an upper surface for placing the workpiece; a projecting element that is detachably attached to the presser bar and that is driven up and down with the presser bar as the presser bar is driven up and down by the presser bar driver through the presser bar vertically moving mechanism to form embosses on the workpiece by downwardly pressing the workpiece; and a receiving section that is provided on the upper surface of the needle plate that opposes the projecting element to receive a tip of the projecting element.

Abstract: A workpiece processing attachment detachably attached to a sewing machine including a presser foot, a presser bar having the presser foot detachably attached to its lower end, a presser bar vertically moving mechanism, a sewing needle, a needle clamp having the sewing needle detachably attached thereto, a needle bar having the needle clamp attached thereto, and a needle bar vertically moving mechanism, the workpiece processing attachment, including a body detachably attached to the lower end of the presser bar; a connecting element capable of being connected to the needle clamp and movable up and down with the needle bar being moved up and down by the needle bar vertically moving mechanism; a needle penetrating the workpiece to form a hole in the workpiece; and a needle vertically moving mechanism moving the needle up and down by the up and down movement of the connecting element.

Abstract: A sewing machine includes a feed dog which transfers workpiece cloth, a needle plate having a first hole through which a needle is passed and a second hole through which a feed dog is movable upward and downward, a bed to which the needle plate is detachably attachable, a feeding mechanism which drives the feed dog in a front-back direction and in an up-down direction, an engaged portion formed in the needle plate, an engaging portion formed in the feed dog or the feeding mechanism, and a switching unit which switches the feed dog or the feeding mechanism between a transfer position where the feed dog transfers the workpiece cloth and a needle plate adjusting position which differs from the transfer position and where the engaging and engaged portions are engaged with each other thereby to determine a fixing point of the needle plate on the bed.

Abstract: The device comprises: a tubular member (1); means (3, 5, 11) to insert and stretch a tubular knitted article (M) over the outside of said tubular member and over an end thereof; a control unit. It also comprises a crown (101) of detection elements cooperating with the end of the tubular member, and the control unit is programmed to determine the angular position of the tubular article stretched over the tubular member by reading the signal supplied by the detection elements in a definite reciprocal position of said tubular article, of said tubular member and of said detection elements.

Abstract: A method for manufacturing a multi-piece article, such as a garment, comprises the following steps. First, at least two parts of the article are provided. Then, a radio frequency identification (RFID) tag is attached to each of the at least two parts of the article. Each of the RFID tags stores data including data identifying the part of the article associated with the RFID tag and manufacturing instructions identifying parts of the article to be connected. Next, the RFID tags including manufacturing instructions identifying matching parts of the article are scanned. Subsequently, the at least two parts of the article are connected together according to the manufacturing instructions obtained prior to the step of connecting the at least two parts so as to form at least a portion of the article.

Abstract: It is an object of the invention to create a sailing yacht having a heeling hull body part and a non-heeling hull body part, which sailing yacht, with regard to the heeling hull body part, can be sailed in the conventional manner and, with regard to the non-heeling hull body part, ensures all the clear advantages of a substantially horizontally-remaining alignment when used preferably as a cabin, galley and/or cockpit, and which sailing yacht thereby offers the greatest possible comfort when sailing, in particular when residing below deck, and can be converted in a simple manner into a pure motorboat. The object is achieved according to the invention in that both the mast (2) and also the keel (3) are in each case arranged so as to be rigidly connected to the first, heeling hull body part (1.1), and in that the first hull body part (1.1) which supports the mast-keel combination (2, 3) is articulatedly connected to the non-heeling, second hull body part (1.

Abstract: An improved floating boat lift incorporates a passive hydraulic pivoting lift mechanism, onto which a boat can be driven and positioned ready for storage using only the motive power of the boat itself. The passive hydraulic pivoting lift mechanism provides mechanical advantage in the pivoting action of the apparatus by way of passive hydraulic action, while at the same time dampening pivoting of the apparatus. Embodiments further provide means for adjusting the elevation of the pivot point relative to the surface of the body of water by way of adjusting the buoyancy of the pivoting lift mechanism.

Abstract: A steering actuator (1) designed as a linear electro-mechanical actuator for a ship control system which comprises an electric motor (2), a controller (11) connected, via a CAN bus, to the electronic control unit of the ship control system (ECU) and an angle sensor (12) actively connected to the controller (11) for determining the angular position of the rudder (13). The electric motor (2) is designed as a vector-controlled brushless motor.

Abstract: A lift assembly is provided for a platform such as used on a ship. The platform can have four spaced apart hitch points. In one embodiment, the lift assembly includes four trolley drive assemblies, each trolley drive assembly including a trolley guidable along a guide rail, and a drive configured to displace the trolley along the guide rails, each trolley being coupled to at least one hitch point. In a second embodiment, a tension leveling assembly is provided in a trolley drive assembly and is configured to couple each of the wire ropes to the trolley and maintain substantially the same amount of tension in each wire rope. In a third embodiment, the lift assembly can be provided on a ship that also includes a vessel for holding water.

Abstract: A mooring system comprising a structure in a body of water; a vessel in the body of water; a first anchor in the body of water; a second anchor in the body of water; a first line connecting the first anchor and the vessel; a second line connecting the second anchor and the vessel; and a third line connecting the structure and the vessel.

Abstract: A diver-propulsion unit 1 has a two-part cylindrical casing 2,3 with hand-grips 9 either side for holding forwardly of the swimming diver and giving maneuverability. Propulsion-thrust is from a propeller 15 rotating within a cylindrical duct 14 of a nozzle-mount 11 to which the casing-parts 2,3 are clamped. The propeller 15 is driven via a belt-drive 25,26 by an electric motor 22 which is mounted on the nozzle-mount 11 outside the duct 14 and which is powered by batteries in externally-projecting pods 31 of the rear casing-part 3. The belt-drive 25,26 extends across the water-flow to the duct 14 within a channel 29 of the nozzle-mount 11. The channel 29 is closed by a radial cover-shell 6 of the front casing-part 2, and a fairing 30 of the casing-part 2 projects into a cylindrical rim 13 of the nozzle-mount 11 to establish a flow-path of reducing cross-sectional area into the duct 14.

Abstract: A sluice device suitable for a remotely cable operated vehicle. A water tight compartment has a first and a second sluice gate. The sluice device includes a system for enabling launching, operating, and retrieving of the remotely cable operated vehicle. An insert for converting an existing torpedo tube to a sluice device, and a torpedo shaped transport container for an insert.

Abstract: A system for communicating with a remotely operated underwater vehicle (ROV) includes an ROV coupled to a surface buoy by a tether. A controller is coupled to a first wireless transceiver and a second wireless transceiver is attached to the surface buoy. Control signals are transmitted from the controller through the first wireless transceiver the second wireless transceiver on the surface buoy. The control signals are then transmitted through the tether to the ROV. Feedback and sensor signals are transmitted from the ROV through the wireless transceivers to the controller.

Abstract: A system for communicating with a remotely operated underwater vehicle (ROV) includes a winged ROV coupled to a surface buoy by a tether. A controller on a support ship is coupled to the tether and the control signals are then transmitted through the tether to the ROV. Feedback and sensor signals are transmitted from the ROV through the wireless transceivers to the controller. The wings of the ROV produce negative lift which is greater than the buoyant force of the ROV and the vertical tension forces on the tether.

Abstract: This invention provides a top for a boat fitted with an aft-mounted, raised poling platform providing protection from the sun for passengers at the vessel's centrally mounted helm, which a) may be easily attached to vessel's existing poling platform, b) allows unencumbered access all around the vessel's gunwales, b) folds up, down or longitudinally for storage, d) may be used at the vessel's intended operating speed, and e) may easily removed. The top shall be constructed of rigid metal, plastic or composite tubing and covered with a flexible or rigid material for protection from the elements. Other options for this type of boat include centrally mounted T-Top designs which interfere with fishing, umbrella designs which cannot be used at speed, and gunwale mounted rigid or folding which interfere with access to the boat's perimeter such as fishing and ingress/egress.

Abstract: The invention relates to a variable-height platform, which is fitted to a watercraft and has an additional travel and/or a longitudinally movable mounting plate, by means of positive control means such that obstructions by technical means in the pivoting area can be fully bypassed without long pivoting arms and special linear-movement cylinders, and a reasonable immersion depth of the platform is ensured in all cases and, in the event of failure of the linear-movement cylinder, the platform can always be moved to the position A by means of an energy store or accumulator.

Abstract: An apparatus for adjustably securing a boat accessory to a boat. A first member has a plug and a second member has a socket. The plug has a rosette shape with rounded protrusions and the socket has a corresponding mating shape. Both the plug and the socket have openings for a fastener to secure the plug in the socket. The first member is one of a mounting base and an accessory base, and the second member is the other one. In one embodiment, an extension is positioned adjacent the plug so as to separate the first and second members. In another embodiment, the extension has a plug on each end and the first and second members have sockets. In another such embodiment, the extension has two members joined with a rosette-shaped plug and socket.

Abstract: A caution pole for embedding in a support medium for drawing attention to potential hazards includes a generally elongate pole body with a proximate end portion formed with a pointed tip for insertion into a support medium, a metal impact cap fitted over the end opposite the proximate end portion of the pole body, the impact cap including a generally cylindrical body having an access opening on one end thereof and a substantially planar surface opposing the access opening, and a clip disposed on the pole body having a base and an arm capable of securing an attachment to the caution pole.

Abstract: A pressure state indicator indicates whether or not positive pressure fluid or negative pressure fluid is supplied to a fluid path. A fluid guide member 17 is constituted of a joint main body 11 in which a fluid path 12 is formed and a partition member 16 provided outside the joint main body 11, and an accommodation space 19 is formed by the partition member 16 and the joint main body 11. A pressure chamber 22a communicating with the fluid path 12 through a communicating hole 23 is formed in the accommodation space 19 by a sliding sealing member 21 provided in the accommodation space 19. The sliding sleeve 24 is located at a non-supply position by a spring member 25 when no pressure is supplied to the fluid path 12, and the sliding sleeve 24 is moved to a supply position when pressure is supplied thereto. A pressure state in the fluid path 12 is externally confirmed by observing positions of the sliding sealing member 21 and the sliding sleeve 24 from outside.

Abstract: For manufacturing a monocrystal, a monocrystal pulling-up device controls pressure within a flow straightening cylinder to be from 33331 Pa to 79993 Pa and a flow velocity of inert gas in the cylinder to be from 0.06 m/sec to 0.31 m/sec (0.005 to 0.056 SL/min·cm2) during a post-addition-pre-growth period. By controlling the flow velocity of the inert gas to be in the above-described range during the post-addition-pre-growth period, the inert gas flows smoothly even when the pressure within the cylinder is relatively high. Evaporation of a volatile dopant because of a reverse flow of the inert gas can be restrained. The volatile dopant can be prevented from adhering to the flow straightening cylinder in an amorphous state, and the volatile dopant can be prevented from dropping into a melt or sticking on the melt while growing a crystal. Foulings can be easily removed.

Abstract: A method for using a silicon film formation apparatus includes performing a pre-coating process to cover a reaction tube with a silicon coating film, an etching process to etch natural oxide films on product target objects, a silicon film formation process to form a silicon product film on the product target objects, and a cleaning process to etch silicon films on the reaction tube, in this order. The pre-coating process includes supplying a silicon source gas into the reaction tube from a first supply port having a lowermost opening at a first position below the process field, while exhausting gas upward from inside the reaction tube. The etching process includes supplying an etching gas into the reaction tube from a second supply port having a lowermost opening between the process field and the first position, while exhausting gas upward from inside the reaction tube by the exhaust system.

Abstract: A modification process of the synthetic quartz powder, which can make a quartz glass product hardly having bubbles at the time of fusing, is provided, along with a modification process of the synthetic quartz powder and a glass product using said modified quartz powder are provided, wherein the synthetic quartz powder is kept in helium atmosphere at least in the temperature falling process, when the amorphous synthetic quartz powder produced by the sol-gel method is carried out by heat treatment in a vacuum furnace at more than the degas temperature and less than the baking temperature, wherein the highest temperature in the helium atmosphere is preferably set to from more than 700° C. to less than 1400° C., and the helium atmosphere is kept to less than 400° C.

Abstract: The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

Abstract: The instant invention relates to a method for changing characteristics of a plastic component, wherein a medium is introduced into the plastic component, which encompasses a porosity and wherein the medium forms a homogenous compound with the plastic component by at least partially dissolving the plastic component.

Abstract: Disclosed is a substrate processing apparatus for rapidly supplying a substrate from a carrier to a processing block. The carrier of which a wafer has been taken out is transferred from a wafer loading-in unit to an arrangement unit for retraction, a new carrier receiving a non-processed wafer is transferred to the wafer loading-in unit, a substrate holding unit for holding one hundred wafers in a shelf form is prepared when the wafer is supplied from the new carrier to a processing block, five wafers are collectively transferred by a second substrate transfer unit from the carrier to the substrate holding unit by a first substrate transfer unit, and then the wafers are transferred from the substrate holding unit to the processing block one by one. Five wafers are transferred to the substrate holding unit at a time, but the wafers are taken out of the substrate holding unit one by one. Accordingly, it is possible to rapidly supply the wafer without interruption in supplying the wafer to the processing block.

Abstract: The present invention is a masking material for painting for masking a surface to be unpainted, comprising: a masking material body for painting made of a carton having a shape conformed to the surface to be unpainted; a double-sided tape provided on the whole rear surface of the masking material body for painting; an incision formed in both the masking material body for painting and the double-sided tape; and a piece of thin paper that covers the incision.

Abstract: The stain preventing cover is formed from a composite sheet 24 having a three layer structure as a raw material which is produced by laminating a first sheet material 21 having a low dielectric constant and having insulation performance, a second sheet material 22 having a dielectric constant higher than that of the first sheet material 21 or having semiconductivity and a third sheet material 23 having a dielectric constant lower than that of the second sheet material 22 and having insulation performance, in which an end of the second sheet material 22 is positioned together with an end of the first and third sheet materials 21 and 23 adjacent to a electrostatic high voltage part 10 of a coating machine and another end thereof is positioned distant from an earth part 11 of the coating machine to be electrically insulated.

Abstract: An apparatus designed to increase the quality of a low-resistance semiconductor single crystal doped with an N-type volatile dopant to a high concentration and increase the production yield by controlling the pressure inside the furnace with good controllability. A vacuum line, a pressure control valve, and an open valve are newly added to the conventional semiconductor single crystal production apparatus. A controller controls the pressure control valve on the basis of a detection value of pressure detection means so as to obtain the desired low resistance value of the semiconductor single crystal. The open valve is controlled so that the open valve is opened in a case where the pressure inside the furnace detected by the pressure detection means reaches an abnormal value.

Abstract: A powder spraycoating control system and its combination with a powder pump or with a powder spraycoating unit. The control system contains an controller programmed to alternatingly operate a powder spraycoating unit in turn containing an injector serving as the powder pump or a powder spraycoating unit containing a dense phase powder pump serving as the powder pump.

Abstract: An apparatus for manufacturing a molten zinc coated steel sheet includes a molten zinc coating device, a temper rolling mill, an acid solution contacting device, and a cleaning device connected in tandem, wherein the acid solution contacting device and the cleaning device are separated from each other with a region therebetween and an absolute humidity controller is disposed in the region between the acid solution contacting device and the cleaning device.

Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a reactor lid assembly for vapor deposition is provided which includes a first showerhead assembly and an isolator assembly disposed next to each other on a lid support, and a second showerhead assembly and an exhaust assembly disposed next to each other on the lid support, wherein the isolator assembly is disposed between the first and second showerhead assemblies and the second showerhead assembly is disposed between the isolator assembly and the exhaust assembly.

Abstract: An annular groove (150) is formed in a lid (3) of a vacuum processing chamber (2) along the periphery of an opening serving as a gas passage. A metal seal (140), having an annular shape (O-ring shape) as a whole and having a double-layered structure, is provided in the groove (150). An annular recess (160) is formed outside the groove (150) in the cover (3) to surround the groove (150). An annular protrusion (170) corresponding to the recess (160) is formed on a flange portion (130), and a fitting mechanism (180) for fitting the protrusion (170) is formed in the recess (160).

Abstract: To inhibit a diffusion of particles into a processing chamber and reduce a cost required for exchanging a gas filter. A substrate processing apparatus comprises: a processing chamber processing substrates; a gas supply part supplying processing gas into the processing chamber; wherein the gas supply part has a gas supply nozzle disposed in the processing chamber; a filter removing impurities contained in the processing gas; and a gas supply port opened in the gas supply nozzle, for supplying into the processing chamber the processing gas from which impurities are removed by the filter.

Abstract: A substrate mounting mechanism on which a substrate is placed is provided. The mechanism includes a heater plate having a substrate mounting surface, and a first insertion hole having large and small diameter portions, and a temperature control jacket formed to cover at least a surface of the heater plate other than the substrate mounting surface and having a non-deposition temperature a second insertion hole having large and small diameter portions. The mechanism further includes a first lift pin having a cover inserted into the large diameter portion of the first insertion hole and a shaft inserted into both the large and small diameter portions of the first insertion hole, and a second lift pin having a cover to be inserted into the large diameter portion of the second insertion hole and a shaft to be inserted into both the large and small diameter portions of the second insertion hole.

Abstract: The invention relates to a support assembly for a substrate holder on which a semiconductor substrate is to be placed for layered deposition of various semiconductor materials on the semiconductor substrate, said support assembly comprising: at least one vertically disposed, rotatably drivable support shaft, as well as a substrate holder support supporting the substrate holder, which is to be placed on the free end of said support shaft, as well as fixation means are arranged for fixing the support shaft and the substrate holder support in position relative to each other.

Abstract: Provided is a weight plate of a vacuum evaporation apparatus, and a vacuum evaporation apparatus, which may prevent occurrence of displacement due to an impact or the like during a conveyance by a convey mechanism after a shadow mask and a glass substrate are superposed and aligned. The glass substrate is superposed and aligned on a top surface of a tension mask as the shadow mask fixed to a mask holding member. Then, the weight plate is placed on the glass substrate and presses the glass substrate by gravity to form a combined conveyance body. A liquid metal is filled in a hollow part of the weight plate at a filling factor of from more than 25% to less than 85% or other shock absorbing mechanism is provided for absorbing an impact applied to the combined conveyance body.

Abstract: The J Bale Feeder is designed to minimize waste when feeding round bales to a small number of animals and/or to a variety of species, and to eliminate the need for expensive round bale handling equipment at the site where the animals are fed. The feeder consists of a V-shaped round bale cradle on wheels with a roof, a grate below the bale to catch falling hay and a hitch convenient for a regular sized pick-up or even smaller utility vehicle. To further minimize waste, the V-shaped cradle has adjustable openings for the animals to access the bale. A grated, hinged door in the back of the cradle, which opens wide to allow easy loading, combined with a similar grate on the front of the cradle, ensures that animals eat from the adjustable openings rather than the ends of the bale.

Abstract: A universally fitting apparatus to hang onto an aquarium or sump and automatically regulate replacement of evaporated water in real time. Further, while maintaining the fluid level and salinity of the total body of water, a normally closed solenoid, actuated by a float switch, will act redundantly with a float valve to meter incoming fluid. Said solenoid will act to close the water source in the event that the float valve fails to operate or in the event of power failure to shut off the incoming water. For additional safety, the power supply may be plugged into an electronic programmable timer to further minimize the likelihood of an overflow.

Abstract: A euthanasia device is provided for euthanizing animals through hypoxia. The euthanasia device has a pressure adjustment vessel having an inner chamber and first and second ends. A chamber access door is in communication with the first end of the pressure adjustment vessel. Further an atmospheric pressure adjustment assembly and an atmospheric pressure control assembly are in communication with the pressure adjustment vessel. A method of use for the euthanasia device is also disclosed.

Abstract: A method and device for training a dog is disclosed. In an embodiment of the method, a device is worn on the side the trainer's body at a height of the dog's head. A button on the device is activated by the dog's muzzle to generate a noise. A reward is given to the dog by the trainer following the activation of the button. In an embodiment of the device, the device includes a housing with a noise-generating element and a button for operation of the noise-generating element. An attachment device is provided on a back side of the housing, where the attachment device is coupleable to the trainer. An activation surface for the button is provided on a front side of the housing and a surface normal of the activation surface, when worn on the trainer's body, is inclined obliquely downward and laterally away from the trainer's body.

Abstract: A flexible reflective flat retractable pet leash is retained within a retractable housing device. The reflective pet leash reflects incoming light beams back in the same direction as emanated. The reflected light beam provides accurate illumination of the pet leash and the location of the pet during dusk or nighttime hours. This retractable pet leash is created by weaving or integrating reflective material fabric/tape within a flat leash portion. The reflective retractable pet leash is composed of a flat leash portion operable to sustain substantial tensile forces having a front and back side. Reflective means are integrated within the flat leash portion being operable to provide reflectivity. A retractable housing device having a handle portion, a retraction control member actuated by a retraction control switch, a housing body with an internal chamber appointed with a reel member, and an extension-retraction aperture is provided for housing the leash.

Abstract: A shank mount assembly for a water heater that includes an annular nipple having an opening, the nipple configured to removably attach to an opening in a water heater tank. The shank mount assembly further includes an annular shank mount having an opening, the shank mount configured to removably attach to the nipple, wherein the shank mount is further configured to attach to a gas valve assembly.

Abstract: An amount of scale adhering onto inner surfaces of water tubes in any one of various boilers including a steam boiler, a hot water boiler, a waste heat boiler, and an exhaust gas boiler is accurately known by providing a temperature sensor at an appropriate position of the boiler. A plurality of water tubes (5, 6) connecting between an upper header (3) and a lower header (4) constitute an inner water tube row (7) and an outer water tube row (8). Inner longitudinal fins (9) close gaps between the adjacent inner water tubes (5, 5) except at a lower end of the inner water tube row (7). Outer longitudinal fins (11) close gaps between the adjacent outer water tubes (6, 6) except at an upper end of the outer water tube row (8).

Abstract: The present invention relates to a hot water supplying system that includes a preheating-circulating system, which heats water to maximally reduce the time to attain a temperature set by a user, and is designed to use a portion of preheating energy for heating, preventing pipelines from being frozen to burst in winter by preheating-circulating.

Abstract: A steam generator is provided in which the total heat transfer efficiency can be improved by suppressing a reduction in the amount of heat exchange at an inlet side of heat transfer tubes while maintaining the effect of increasing the amount of heat exchange at an outlet side thereof.