An assembly for mailing an article requiring delivery by a special service and a method for mailing same are provided. The assembly includes a return postcard and anchor portions removably attached to the return postcard. The anchor portions include adhesive that allows the anchor portions to be attached to a mailpiece. The return postcard includes a special services designator section indicative of the special service required for delivery of the mailpiece. The return postcard is integrally formed, but removably attached, such that the return postcard remains attached to the envelope until received by the addressee, at which time the return postcard may be removed. The assembly is designed to incorporate a form into the return postcard to simplify preparation of the mailpiece for delivery by the special service. Alternatively, the postcard may contain a machine readable code that aids in the delivery and tracking of the mailpiece.

A server-based video game system maintains a number of video game characters having computer-simulated genetic (“digenetic”) structures that prescribe a number of physical and cognitive performance traits and characteristics for the video game characters. The system allows end users to establish remote online access to the game characters (via, e.g., the Internet). The results of competitions and training activities are based upon the game characters' digenetics, the conditions of the game environment, and the game characters' current levels of physical and cognitive development. The game characters' performance capabilities and cognition are updated continuously in response to the results of competitions and training activities. Competition and training results can be processed by the game servers and transmitted to the end user presentation devices for graphics rendering. In this manner, the video game system need not be burdened by network latency and other delays. The game system also supports game character breeding; game character evolution based upon the digenetics; and game character buying, trading, selling, and collecting.

The present invention is a specimen capture and collection form that utilizes a self laminating form assembly having first and second separable parts one of which is used in the collection, capture and retention of a sample of material to be analyzed and the other of which is used for recording the particular transaction for which the sample of specimen was collected. The form assembly is also provided with a unique element which enables the separation of excess sample collection material to be easily and conveniently separated from the remainder of the form assembly so as to not contaminate the specimen as well as prevent the inadvertent removal of the specimen from the form assembly. The construction is also provided with distinct verification areas to confirm authenticity of the form construction.

An assembly for mailing an article requiring special services and a method for mailing same are provided. The assembly includes a return postcard, two anchor portions disposed on either side of the postcard, printer track strips having a plurality of holes for engaging a printer, such as a dot matrix printer, and a hole capable of being sensed by another type of printer, such as a thermal printer. The indicia printed upon the mailing assembly including the designator indicating the special service required, are printed using a single color thereby simplifying the printing process. The return postcard is removably attached to anchor portions such that the return postcard remains attached to the envelope until received by the addressee, at which time the return postcard may be removed from the anchor portions. The assembly is designed to incorporate a form into the return postcard to simplify preparation of the mailpiece for delivery by the special service.

A drive train apparatus (1) adapted for driving a pan and tilt head, which in use is intended to support a payload (for example a video camera), the apparatus includes respective successive drive elements (2, 3, 4) so coupled as to communicate a rotational movement applied at one end of the apparatus (1) from an output of a rotational input device (8) to a rotational output (16) disposed at the other end of the apparatus (1), in a manner whereby the rotational velocity of the rotational movement is reduced across the drive elements (2, 3, 4) thereby converting the torque applied to the input of each drive element (2, 3, 4) into an increased torque at the output of each drive element (2, 3, 4); a first stage one of the drive elements including a belt drive.

A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within nanotubes (e.g., carbon nanotubes).

A flexible cable assembly (FCA) has a stiffener layer positioned in electrical contact with an electrical ground feature of the FCA, and a head stack assembly (HSA) may include a suspension tail electrically connected to the stiffener layer of the FCA, thus providing a robust ground path between the read/write head and the arm or E-block of the HSA. Additional efficient grounding techniques may include directly electrically connecting the suspension tail to the arm via a conductive adhesive, directly electrically connecting the FCA stiffener layer to the arm via a conductive screw, and/or directly electrically connecting the ground feature and the stiffener layer of the FCA to the arm using a ground post or screw.

A vibration-damping plain bearing composite comprising a sliding layer, a dimensionally stable support layer and an elastic layer. In one embodiment, the dimensionally stable support layer is arranged between the sliding layer and the elastic layer; in another embodiment, the elastic layer is arranged between the sliding layer and the dimensionally stable support layer. The bearing composites are characterized that a ratio of the thickness of the elastic layer tEL to a thickness of the sliding layer tSL is at least 3.

A retainer of synthetic resin is provided in such a way that abnormal heat generation in a bearing and wear of the retainer due to interference between the retainer and balls are less likely to arise while the bearing is rotating at a high speed. A retainer (5) of synthetic resin includes two annular members (10) made of synthetic resin and facing each other in the axial direction, the annular members defining therebetween a plurality of circumferentially spaced apart pockets (11) in which respective balls (4) are received. Concave spherical surfaces (23) are formed at the circumferential ends of the respective pockets (11) so as to extend along the outer peripheries of the balls (4), and cylindrical surfaces (22) are formed at the axial ends of the respective pockets (11).

A device for suspending a turbojet casing, the device including a shouldered pin extending through aligned orifices of two lugs of a clevis secured to the casing. A protection piece for providing protection against wear is mounted on each lug of the clevis and has the shouldered pin passing therethrough, the protection piece being prevented from moving in rotation on the lug by co-operating shapes.

A bearing cage assembly (100) comprises a plurality of discrete bridge elements (206) disposed between adjacent rolling elements (112) and coupled between first and second axially spaced cage support wire rings (102, 104) which are appropriately tensioned. Spacers (110) are disposed between adjacent bridge elements and engage the bridge elements in a piloted engagement. The bridge elements maintain a separation between rolling elements, retain the rolling elements within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings. Profiled surfaces on the bridge elements position the bearing cage assembly on at least one axial end of the rolling elements.

Systems and methods for retrieving service request messages stored in a messaging queue and received by a queue in real-time. The service request messages are retrieved using a plurality of threads that comprise at least one retrieval criteria. Service request messages may be retrieved from the message queue or retrieved as they are received by the message queue in real-time using criteria in addition to or instead of the arrival time of the service request message which may also be referred to as the put-time. Service request messages may be requested and retrieved in an iterative process wherein multiple threads execute consecutively, concurrently, or a combination of both, in order to retrieve service request messages requested by an application.

The present invention provides a phosphate group-containing resin comprising, as polymerized units, a polymerizable unsaturated polyester having at least one phosphate group and/or having at least one phosphoric acid group, a (meth)acrylate based polymerizable monomer, and an alkoxylated (meth)acrylic acid polymerizable monomer; and a use of the phosphate-group containing resin as a treating agent of a metallic pigment or an inorganic pigment, especially used in a water-based coating composition.

Provided is a fluorine- and epoxy group-containing copolymer with excellent workability at room temperature, high water-repellency, and excellent characteristics as a water vapor barrier. Also provided is an efficient method for producing said copolymer. The fluorine and epoxy group-containing copolymer is characterized by containing at least a monomer unit represented by general formula (1): {Therein, R1-R10 each independently represent an alkyl group having 1-3 carbon atoms or a hydrogen atom, R11 is a hydrogen atom, methyl group, or phenyl group, and R5 or R6 can be linked with R7 or R8 to form a ring.} and a monomer unit represented by general formula (2): {Therein, R12 and R13 each independently represent a hydrogen atom or a fluorine atom; R14 represents a hydrogen atom, fluorine atom, methyl group or trifluoromethyl group, and R15 represents a flourine atom or perfluoro group having at most 12 carbon atoms}.

The present invention provides polymerization processes utilizing a catalyst system containing an ansa-metallocene and a second metallocene compound for the production of olefin polymers.

The present invention relates to a polymer composition that includes a polymer having at least one polymer segment represented by the following Formula (I), With reference to Formula (I): M independently for each w is a residue of a monomer; φ is a residue of a mechanochromic compound having at least two reactive groups that are each independently bonded to one monomer residue M; w, independently for each z, is an integer of at least 1; and z is an integer of at least 2. The mechanochromic compound is selected from at least one of the following, (a) a spirooxazine compound represented by the following Formula (II), and (b) an indenonaphthopyran represented by the following Formula (III),

A surface drainage structure formed above a subgrade may include an elongate drain conduit disposed partially within the subgrade. The elongate drain conduit may define at least one drain slot extending through a wall thereof. The structure may include a pavement layer with an exposed top surface and a drainage channel extending therefrom. The drainage channel may be in fluid communication with the drain slot of the elongate drain conduit. A method of forming the surface drainage structure includes placing the elongate drain conduit in the subgrade, forming the pavement layer, cutting an upper channel along the elongate drain conduit, and cutting a lower channel and the drain slot in the elongate conduit.

A method for repairing an aged or damaged asphalt pavement is provided. The method involves preparing a surface of the aged or damaged asphalt pavement by filling in deviations from a uniform surface plane with dry aggregate and compacting the dry aggregate; applying a reactive asphalt emulsion to the prepared surface; and passing an emitter over the prepared pavement, wherein the emitter generates electromagnetic radiation having a wavelength of from 2-5 mm that penetrates into the pavement to a depth of at least 2 inches. The asphalt pavement is repaired by disturbing voids and interstices in the damaged pavement without dehydrogenation of the asphalt, such that oligomers present in the aged asphalt are linked together into longer polymer chains to improve ductility of the aged asphalt.

A grader blade mounted to a support frame has an auger-grinder mounted ahead of the grader blade. The auger-grinder has a first helical vane fixed to a rotatable axle with a plurality of teeth attached to and protruding outwardly from the auger. A shroud above and partially surrounding the auger-grinder has an inner shroud end wall, an outer shroud end wall and bearings in which the axle is journaled transverse to the direction of travel. A beater is fixed to the axle between an inner end of the helical vane and the inner wall. The beater has a plurality of paddles extending outwardly from the axle. An inner barrier wall is attached to the inner shroud wall and extends forward of the auger-grinder. A drive link is connected to the axle for connection to a prime mover for driving the axle in rotation.

A system for measuring the height of paving material distributed by an auger of a paving machine in front of a grading implement, such as a screed, is disclosed. The system includes a sonic sensor and a laser pointer. The sonic sensor generates a sonic signal which is directed at the paving material distributed by the auger. The laser pointer generates a laser beam which is similarly directed at the paving material that has been distributed by the auger. The laser beam and the sonic signal meet at a common position on the paving material.

A combined stair screed and float device for quickly and efficiently spreading and smoothing wet concrete comprising a generally shoe shaped member with a vertically and horizontally adjustable top guide and base bar to rest on riser forms. In operation, a user rests the top guide and the base bar on two riser forms with a pointed corner finder floating over the concrete at the desired corner position. The user grasps a grip portion and a handle and guides the device across the tread in a simultaneous screed and float step preparing a smooth surface for finishing. The device is both vertically and horizontally adjustable to accommodate a full range of conceivable step heights, tread lengths, toe kick overhang lengths, and corners.

A method of repairing cracks in a paved surface includes identifying at least one crack in the surface that needs to be repaired. The crack is then filled with an asphalt sealer including approximately 40-55% by weight of slag sand.

The present invention provides a system and method for controlling an asphalt repair apparatus. An additional aspect of the present invention is to provide a system that may position a heater repair element adjacent a targeted asphalt surface, acquire and analyze surface and heater sensing data, and control heater output to prepare the targeted asphalt surface for repair. Further, the system may be configured to control an asphalt repair apparatus to satisfy user-defined asphalt repair requirements.

Disclosed is a pencil-type case for allowing pressing a pressure button to discharge liquid content out to a content brush. The container for dispensing a preset quantity of liquid content accommodated in a main body by pressing a pressure button. The container includes: main body including content case to accommodate content in outer body and having pushing member; pumping member including: folding link driven by pressure button; check valve preventing content from flowing backward when content is introduced into cylinder tube via content-introducing hole formed in cylinder tube, and piston pumping content out to content brush of content brush body; and content brush body including: content-introducing tube in which check valve is installed; cam surface adjusting stroke of folding link; and content brush provided at leading end to discharge content of content-introducing tube.

A container (1) for a stick of a cosmetic or hygienic product, comprising an applicator element (3) in which a stick (2) of said product can move axially relative to a base (32), as well as a tubular storage element (4) comprising a top (41) that contains a mobile sleeve (42) and is suitable for covering the applicator element (3) in a configuration wherein said applicator element is fully inserted into the sleeve and connected to said top by means of an elastically compressible device having two stable axial positions relative to a hilly inserted configuration, said device comprising a resilient element (43) pushing the sleeve (42) towards the outside of the top, and, distributed between the top and the sleeve, a heart-shaped guide track (44) arranged parallel to an axial direction of the top, and a follower (45) carried by a generally axially pivoting arm (46) such as to define stable top and bottom positions allowing the applicator element to be gripped or not. The resilient element (43) is arranged between the outer wall of the sleeve (42) and the inner wall of the top (41), and the guide track and follower are arranged in a lateral space formed by the shape differences of the cross-sections of the top and the sleeve.

Container for liquid or paste-like products, of the type consisting of a tank and of a closing cap of said tank and a handle for a stem carried by said cap, said tank consisting of a cylindrical body, limited above by a neck, said stem being configured to be introduced through said neck and having at the distal end thereof an application unit, characterized in that on the outer periphery of said neck there are provided relief shaped elements guiding and retaining pin elements projecting internally from said cap, said shaped elements consisting of a serrated, annular base crown and a series of guiding and retaining bodies, the axis of which is angled with respect to the axis of said tank 1 , said bodies being mutually separated and separated from said annular crown by a channel.

A fountain pen comprises a hollow barrel such as can be held by a user, a nib stably attached to one end of the hollow barrel, also an ink cartridge housed internally of the hollow barrel and having a given containment volume. The cartridge is connected to the nib by way of a feed through which ink flows to the nib, and deformable by expanding at least partially between a normally undeformed first configuration, and a deformed second configuration in which the containment volume created internally is greater than the containment volume in the undeformed configuration.

Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol. The WSM comprises one or more white space channel units, and each of the white space channel units comprises a channel number field indicating one of the available channels and a power constraint field indicating a maximum allowable power on the indicated channel.

A voicemail receptionist system includes a memory and a processor. The memory can store data relating to one or more users. An incoming communication can be handled by the voicemail receptionist system and provided with functionality based upon a user's preferences, for example. The data stored by the voicemail receptionist system can be updated at any time, or automatically updated upon updating of the data, or upon occurrence of a trigger event. Voicemail receptionist functionality can include standard voicemail system functionality as well as functionality relating to email, text messaging, MMS messaging, calendar features, schedule announcements, location data, as well as other features.

A device for reducing sound from an air treatment unit includes, in one embodiment, a wall curb. The air treatment system includes a supply opening and a return opening. The wall curb includes a frame portion defining an interior chamber. A partition divides the interior chamber into a supply plenum in a first portion of the interior chamber and a return plenum in a second portion of the interior chamber. A curb supply opening is formed through the perimeter frame in communication with the supply plenum. A curb return opening is formed through the perimeter frame in communication with the return plenum. The curb return opening is positioned such that airflow through the return plenum is non-linear and a sound absorbing material may be positioned on at least some inside surfaces of the return plenum.

An air guide element (10) for an aircraft air conditioning system comprises a housing (12), which has an air inlet opening (14) and an air outlet opening (16). The air inlet opening (14) and the air outlet opening (16) are disposed in such a way and the housing (12) is shaped in such a way that air that is fed to the air guide element (10) through the air inlet opening (14), as it flows through the air guide element (10), is deflected at an angle of ca. 45° to 135° relative to the direction of the air flow through the air inlet opening (14). A cross-sectional area of flow of the housing (12) that is disposed at right angles to the direction of the air flow through the air outlet opening (16) is subdivided into at least two regions (18a, 18b, 18c). In each of said regions (18a, 18b, 18c) an easily accessible, removable and exchangeable calibrating element (20a, 20b, 20c) is disposed, which is designed to generate, in the air flow passing through a region (18a, 18b, 18c) that is associated with a respective calibrating element (20a, 20b, 20c), a pressure loss that is constant over said region (18a, 1b, 18c).

A system for ventilating an explosion hazard region of an aircraft includes a ram-air channel, which has an air inlet for feeding ambient air into the ram-air channel as well as an air outlet. The ram-air channel is devised to feed air to a device that is to be cooled on board the aircraft. A ventilation line has an air inlet for feeding air flowing through the ram-air channel into the ventilation line as well as an air outlet. The ventilation line is devised to feed air to a region of the aircraft that is to be ventilated. An accumulator is disposed between the ram-air channel and the air inlet of the ventilation line and is devised to convert the dynamic pressure of the air flow conveyed through the ram-air channel at least partially into static pressure for regulating flow through the explosion hazard region.

A system for air-conditioning an aircraft cabin includes an air conditioning unit connected to a central mixer, a first recirculation system designed to remove exhaust air from a first aircraft cabin region and connected to the central mixer, and a second recirculation system designed to remove exhaust air from a second aircraft cabin region and connected to a local mixer. A control device is designed to control the second recirculation system to reduce an air volume flow being removed from the second aircraft cabin region when shifting from a first operating state (e.g., normal operation) to a second operating state (e.g., defined operating situations such as when quick cooling is desired). The air volume being removed from the first aircraft cabin region may be increased accordingly in the second operating state.

A container data center includes a container and a server cabinet received in the container. The server cabinet includes a rack and a number of heat dissipation devices mounted to a rear side of the rack. Each heat dissipation device includes a case fixed to the rack, a fan mounted to an outer side of the case, and a heat dissipation plate received in the case and aligning with the fan. The heat dissipation plate defines a vent. The fan draws heat air through the vent of the heat dissipation plate from the rack, and the heat air is cooled by refrigerant received in the heat dissipation plate to become cool air. The cool air flows in the container, and circularly flows into the cabinet from a front side of the cabinet.

A vehicle is provided including a battery module, a DC/DC converter module portioned from the battery module, a duct, one blower, and a jumper duct. The battery module includes inlet and outlet ports. The DC/DC converter module includes inlet and outlet ports. A duct is arranged to direct cooling air into each of the inlet ports. The blower is arranged to draw cooling air from the duct, through the modules, and out the outlet ports. The jumper duct is arranged up stream of the blower with the converter outlet port, and configured to reduce an effective cross sectional area of the converter outlet port to define a flow rate of the cooling air into the battery inlet port.

It is an object to ease discomfort feeling caused by ear fullness for passengers of an elevator. An air pressure control device 104 controls an air pressure in an elevator car 102 using an air pressure adjusting device 105 such as a blower, an air compressor, etc. In the air pressure control device 104, a departure/arrival control unit 121 largely changes the air pressure in the elevator car 102 in the first period which is a time zone at the time of departing from a departure floor (or at the time of arriving at an arrival floor), and an except departure/arrival control unit 122 slightly changes the air pressure in the elevator car 102 in the subsequent second period (or in a time period until arrival). By this 2-step air pressure control, the passenger is prompted to clear the ear in a short time T1, the ear fullness is resolved by the ear clearing, and thereafter, the passenger can ascend/descend with the elevator car 102 comfortably until arriving at the arrival floor.

A chassis and rack system is disclosed in which a chassis separated into two separate enclosures by a central partition. Each of the enclosures is sized to receive a computer system. The partition includes a pair of vertically oriented vents, with each of the vents in fluid communication with one of the enclosures and the computer system contained therein. Heated air is removed from each computer system through the vent in the partition that is associated with the computer system. Multiple chassis may be placed one atop another in a vertical configuration in which each chassis is either directly above or directly below another chassis. In this vertical configuration, the vents form a vertically oriented common plenum that can be used to evacuate air from multiple chassis arranged in a rack.

An installation for cooling an electronic device includes an air conditioner having an air outlet for blowing cooling air to a room; a first detector adjacent to the air outlet of the air conditioner, for detecting a temperature of the cooling air; a rack accommodating the electronic device, the rack having an air inlet for receiving the cooling air from the air conditioner and an air outlet for exhausting air to the room; a second detector adjacent to the air inlet of the rack, for detecting a temperature of air received through the air inlet of the rack; and a controller for acquiring the temperatures detected by the first and the second detectors, and controlling a quantity of the cooling air blown from the air outlet of the air conditioner so as to decrease a difference between the temperatures detected by the first and the second detectors.

A damper blade is moved within an air control module connected to the discharge of a high-velocity blower, thereby modulating the electric power consumption of the blower motor.

An outdoor unit for an air conditioner according to an exemplary embodiment of the disclosure, comprising: a case forming shape and having a suction port suctioning outside air and a discharge port discharging the suctioned air; a heat exchanger accommodated inside the case; a fan that is accommodated inside the case and forcibly circulate air; and a louver assembly revolvably mounted in the case so as to selectively open and close the discharge port.

An air conditioning apparatus has, a first domed door comprising a first pivot and a first sealing surface, and a second domed door comprising a second pivot and a second sealing surface, wherein, said second pivot is positioned different from said second pivot. With the above structure, the radial gap between the first sealing surface and the second sealing surface is varied when at least one of the two domed doors is moved. Accordingly, the air conditioning apparatus described above does not have to set the constant small radial gap or constant wide radial gap for the sake of reducing unintentional air leaking or preventing said friction.

A register for air-conditioning includes a tubular register having an air passage and a blowoff opening and register fins 2 for regulating the wind direction of conditioned air blowing out from the blowoff opening. The register fin 2 includes a plate-like fin main body 3 and a pair of plate-like fin covers 4 and 5 assembled so as to sandwich the fin main body 3 from both sides of the fin main body 3 with the end face of the fin main body 3 on the vehicle cabin side being exposed. The fin main body 3 is provided with a plurality of engaging holes 31. The fin covers 4 and 5 are provided, at the positions corresponding to the engaging holes 31, with a plurality of engaging claws (41) and 51 protruding in the thickness direction from the surfaces facing the fin main body 3. The fin main body 3 and the fin covers 4 and 5 are assembled by engaging the engaging holes 31 with the engaging claws (41) and 51.

An embodiment includes a first space, a second space, a first damper, a second damper, and a third damper. The first space is connected to a cold space, having cold air reside therein to send to the cold space. The second space has return air reside therein, as it is discharged from a hot space. The first damper has an opening adjusted under control of a controller to take in outdoor air to the first space, and is operable to have an open state in an emergency with a server being supplied with power. The second damper has an opening adjusted under control of the controller to discharge return air in the second space, outside thereof, and is operable to have an open state in the emergency. The third damper has an opening adjusted under control of the controller to recirculate return air in the second space to the first space.

An air guiding element (10) for an aircraft air conditioning system comprises a housing base body (12), in which an air inlet opening (14) and an air outlet opening (16) are constructed. A first flow control element (28) is arranged in the housing base body (12), relative to the direction of the air flow through the air guiding element (10), upstream of the air outlet opening (16). The first flow control element (28) comprises a plurality of air guiding channels (30) which are surrounded by a noise-absorbing material (32).

An air passage device for installation into a mounting opening (50) in a wall (51) for components generating waste heat, such as a switch box, includes a base housing (21; 221) with a fan support (25) and a design cover (80; 280), wherein the design cover (80; 280) has on an air inlet side a covering device (100) constructed as a fan grid (10; 210) with sheet elements (90, 90'; 290, 290'). At least one swivellable sheet element (90) or at least one flexible, tongue-shaped side wall section (235), separated from the remaining side wall surface by slits (332, 333) running transversely to the longitudinal direction of the side wall, is formed in the region of the upper side wall of the design cover (80; 280) facing away from the swivel axis (26; 226) for swivelling the design cover (80; 280), wherein the sheet element (90) and the tongue-shaped side wall section (235) are formed between the design cover (80; 280) and the base housing (21; 221) as a detachable and lockable detent connection (40; 240), that can be operated by a finger.

In the air conditioner, determination is made whether or not a “3-Dimensional Swing” or a “Left/Right Swing” relating to movement of a left/right flap is set (step S2). When it is determined that the “3-Dimensional Swing” or “Left/Right Swing” is set (step S2: Yes), a determination is made whether or not the swing range of the left/right flap is set to a part of the movable range (step S3). When it is determined in step S3 that the swing range of the left/right flap is set (step S3: Yes), the left/right flap is once returned to the reference position (step S4), and then reciprocation of the left/right flap within the swing range is started (step S5).

An air duct assembly includes upper and lower pliable sheets that can be assembled in a sequence that makes the assembly easier to install and later easier to remove for periodic cleaning. To install the assembly, the upper sheet can be installed first by inserting the edges of the upper sheet within a pair of tracks and then fastening the upper sheet to a vertical supply air duct. An optional airflow modifier (e.g., filter, airflow turning vane, or noise attenuator) can be install where the supply air duct connects to the upper sheet. Once the upper sheet is suspended from the tracks and fastened to the main supply air duct, the lower sheet can be installed separately. Pliable end panels and pliable fasteners (e.g., zipper or VELCRO fastener) can make most of the air duct assembly machine washable. The upper and lower sheets can have different degrees of air permeability.

A lid for a beverage container or travel mug is provided that has one or more visual indicators to identify the location of the pour spout opening of the container or mug in low light conditions.

Systems and methods for updating status of digital certificate subkeys. A request is made to a key server to verify if a given key is revoked. If it is not, then the key with its subkeys is acquired from the key server. If one or more subkeys or signatures of the subkeys are different in the acquired key, then the key is replaced.

A content data reproducing method includes: decrypting encrypted data to generate plain-text data; dividing the plain-text data into decrypted content data and reproduction management information; sending the reproduction management information to a user space; storing the decrypted content data in a secret buffer; obtaining the decrypted content data as reproduction target data from the secret buffer and transmitting the reproduction target data to a decoder; and decoding the reproduction target data by the decoder.