Abstract: A robot arm for delivering a wafer is disclosed which comprises a carrier plate, an inner ring, a driving device and at least a contact pad. The inner ring is disposed on the carrier plate and defines at least a through-hole. The driving device is connected to the carrier plate to move the carrier plate. The contact pad is disposed at the through-hole of the inner ring and comprises a first protrusion portion and a second protrusion portion. The first protrusion portion protrudes from a first surface of the inner ring and is used for being in contact with the wafer to prevent it from being in contact with the first surface. The second protrusion portion is lodged in the through-hole to fix the contact pad at the inner ring.

Abstract: A coin processing and redemption system includes a coin processing machine configured to receive a batch of coins in an input region and process the batch of coins to determine a value thereof. A dispensing device is provided and is configured to output a redemption ticket bearing a code. The coin processing machine is configured to associate the redemption ticket code with a coin processing transaction prior to the determination of a value of a batch of coins.

Abstract: An apparatus and method for the manufacture of welded components, the apparatus comprising welding means (100) at the welding location, means for supporting a substrate (104) to be welded by the welding means (100) at the welding location and machining means (102) arranged to machine the surface of a so-welded component; the apparatus characterised by including: a debris sorter comprising a debris collector (106) for receiving, when in use, machined debris from the surface of a welded component, the debris collector (106) being connected to a debris separator (110) for separating the machined debris by type into at least a first outlet path A and a second outlet path B.

Abstract: A method including treating packs of overlapping postal objects for generating singulated postal objects, directing each postal object towards a respective outlet selected from among a number n of selectable outlets. The method includes performing a first sorting step, accumulating, within an i-th selected outlet, postal objects belonging to K subgroups having homogeneous delivery points, and carrying out a step of re-processing the previously sorted postal objects, whereby the postal objects taken from the outlets are treated for forming ordered sets of postal objects, each set comprising the postal objects belonging to a respective homogeneous subgroup and being formed by postal objects ordered according to successive delivery points; and performing a second step of sorting ordered sets, on the basis of which the postal objects that have corresponding positions within each subgroup are sent to the respective outlets. The objects are accumulated according to successive delivery points in the outlets.

Abstract: The invention relates to a method for sorting mail and, in particular, to the route order sorting thereof. The method is characterized in that postcode addresses applied to the mailings are recorded before the sorting process to give route order sorting, on the basis of the recorded postcodes it is determined which address points have mail and, on arranging the address points, those address points for which there is not at least one mailing are suppressed. The invention further relates to a device suitable for both sorting mail by address and also for route order sorting of mail. The method and device are particularly suitable or the sorting of large and oversize letters.

Abstract: The invention relates to methods and systems of detecting useful material in a mixed solid, liquid and/or gaseous material stream. The methods include defining a value range requirement for at least one parameter of interest of useful material to be selected from the material stream, passing the material stream through at least one detector adapted to measure the parameter of interest of the material stream, and separating the material stream into useful material and residue based on the measured parameter. The systems comprise at least one detector adapted to measure a parameter of interest of the material stream passing therethrough; and at least one separator for separating the material stream into useful material and residue based on the measured parameter after passing through the detector. The system may further comprise treaters, processors, and controllers.

Abstract: A sorting machine for sorting mailpieces including both letters and flats comprises: a first sorting system (20) adapted for flats and including a first mailpiece conveyor suitable for directing the flats towards sorting outlets of the type having racks (26) into which the flats fall by gravity; and a second sorting system (1) adapted for letters and including a second mailpiece conveyor suitable for directing the letters towards sorting outlets of the type having stackers (7) in which the letters are stacked on edge one behind another. The two sorting systems have the same number of sorting outlets, the two systems being superposed so that the sorting outlets of the first sorting system are superposed on respective ones of the sorting outlets of the second sorting system. Each sorting outlet of the first system may be equipped with at least two racks towards each of which a flat can be directed selectively by the first conveyor.

Abstract: This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparations of homogeneous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fractionation. The cutting and annealing processes may be carried out on a purified nanotube bucky paper, on felts prior to purification of nanotubes or on any material that contains single-wall nanotubes. In one embodiment, oxidative etching with concentrated nitric acid is employed to cut SWNTs into shorter lengths. The annealed nanotubes may be disbursed in an aqueous detergent solution or an organic solvent for the fractionation. Closed tubes can also be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the end caps.

Abstract: A method and an apparatus for the transporting and sorting of articles uses a container. The container extends along a container axis and has a bottom wall and a plurality of parallel walls. The bottom wall stands perpendicular to the container axis, and the parallel walls are parallel to the container axis. One parallel wall is connected pivotably to another parallel wall of the container. The container is brought into a filling position in which the container stands on a parallel wall. The pivotably fastened parallel wall points upward, so that an orifice occurs. The articles are introduced into the container through this orifice. The container, together with the articles, is transported to a destination and brought into a transfer position. The container stands on a parallel wall. The pivotably fastened parallel wall points to one side. An orifice thereby occurs. The articles are extracted through this orifice.

Abstract: A self contained and portable gold and gem separation kit. The apparatus is driven with a manual rocking motion to wash material with the self contained water. Using the natural wave motion, generated in the water from the rocking apparatus, the material is washed and classified. The bottom collection tray catches the classified material, and is removable for ease of collection of the concentrated material.

Abstract: Disclosed is a system and method of dynamically sorting items for delivery to diverse destinations in which at least one target location changes during the sorting process using an electronic array that correlates diverse destinations to target locations for sorting, wherein the electronic array changes based upon criteria relating to the results of the sort resulting in the removal of a first set of items from one target location while leaving a second set in the target location and placing the first set in another target location to adapt to the changed array and thereafter continuing to sort further items according to the changed array while some items remain in their initial target locations.

Abstract: A media depository comprises: an input for receiving deposited media items, a discriminator arranged to receive individual deposited media items from the input, and to ascertain whether each individual deposited media item is a banknote or a check; and a combined media container. The combined media container comprises: first and second media entrances, located opposite each other; first and second moveable supports, also located opposite each other; and an urging mechanism coupled to the first and second moveable supports and arranged to urge the first moveable support towards the first media entrance and the second moveable support towards the second media entrance, so that the first and second moveable supports are initially located at the first and second entrances respectively, and move closer to each other as media items are deposited.

Abstract: An apparatus for arranging flat mail items into a sequence of delivery points has a singling device having a device for determining address information located on the mail items. A temporary storage device has pouches that open downward and are connected to a circulating conveying device. The mail items are transportable from a read device to one pouch-loading station. Output conveyors accept the mail items from the pouches and transport the mail items to a stacking device. Each output conveyor has segments and moves relative to the temporary storage device. A part of an output conveyor is arranged beneath an overlapping area. A transporting speed and direction of an output conveyor are matched to a transporting speed and direction of the temporary storage device such that each segment of the output conveyor passes by each pouch of the temporary storage device at least once while moving along the overlapping area.

Abstract: System and methods for identifying waste items in a waste management environment includes reading data from a plurality of identifiers that are attached to waste items. The read data is compared with reference data stored in one or more data repositories. If a match exists between any of the read data and the reference data, an indication of non-compliance of the waste item with predetermined safety criteria is provided.

Abstract: The present invention provides an apparatus for discriminating the kind of a sheet material, comprising: a substrate having a recessed portion; a press member situated so that a sheet material can be deflected using the recessed portion; a support member that is deformed as the sheet material situated to cover the recessed portion is pressed by the press member and thereby deflected; and a sensor for detecting the deformation amount of the support member, wherein the kind of the sheet material is discriminated on the basis of detecting the deformation amount of the support member by the sensor.

Abstract: A method and an apparatus sort items, in particular of flat postal items, in two sorting processes. Two classes of items are sorted on the basis of a sorting feature such that a predetermined sequence of the feature values is maintained. In a first sorting process, a sorting system sorts the items in the first class separately from the items in the second class. In the process, the sorting system determines which possible feature values are actually assumed by at least one item in the second class. The sorting system generates a sequence of item sets. These item sets and the items in the second class are jointly sorted by a sorting installation. In the second sorting process, the sorting installation generates the predetermined feature value sequence of the items of both classes.

Abstract: A method and an installation for sorting flat articles, in particular flat items of mail, discharges each article to be sorted, in dependence on a respectively measured feature value, into an output device. A resulting stack is moved onto a transporting configuration with planes of the articles of the stack perpendicular to a first transporting direction. The transporting configuration transports the stack toward a processing device. The transporting configuration transports the stack initially in the first transporting direction. Following transportation in the first transporting direction, the transporting configuration rotates the stack around a curve from the first transporting direction into a second transporting direction. The transporting configuration then transports the stack toward the processing device in the second transporting direction.

Abstract: A device is disclosed for the classification of a transparent component of a material flow using an optical detector unit, with allocatable optical axis which is directed toward the material flow, at least one illumination unit for illuminating the material flow from a space over the material flow, in which the optical detector unit is also contained, and a classifier, which classifies the component based on information which is recorded from the component using the optical detector unit, and a decision criterion. A retroreflector is provided at least longitudinally relative to the optical axis of the detector unit, downstream from the material flow in the viewing direction of the detector, the illumination unit provides at least two light sources, with first light source emitting light of a first type and a second light source emitting light of a second type, The light of at least the first light source is incident on the material flow longitudinally relative to the optical axis.

Abstract: Upstream and downstream grippers clamp to one or more seal zones on a bandolier of packaged premiums, such that the downstream gripper(s) and upstream clipper(a) are on opposite sides of a wakened separation line. The upstream and downstream gripper(s) are independently displaced by motive devices in a downstream direction. Further displacement of the downstream gripper(s) relative to the upstream gripper(s) causes the separation line to tear, thus separating an end premium package from the rest of the bandolier. In one embodiment, the grippers clamp to the seal zones at locations offset from the bandolier axis and to one side thereof, thus causing a gradual tearing along the separation line and easier, less stressful separation.

Abstract: A cart is towed behind a combine harvester for collecting corn cobs and includes a conveyer belt feeding into a system for separating cobs from residue to be discharged and a tank for receiving and transporting the cobs. An unload auger is provided from the tank to one side of the cart while the cart moves forward. Power for driving the cart is obtained from a chopper drive of the combine harvester. The separating arrangement includes a series of sequential blower fans for blowing air through the discharged material as it is discharged from a conveyor and into a spreading guide disperses the residue. The cobs are conveyed using a series of augers where the auger to flight distance is at least 2 inches and particularly a pair of augers feed the cobs through a front wall of the tank so as to push cobs upwardly into the tank.

Abstract: A robotic die sorter having pick and place arm assemblies and a multi-camera optical inspection system is disclosed. A pick arm of the pick arm assembly picks a die from a semiconductor wafer, and a place arm of the place arm assembly receives the die from the pick arm and places same in a reel of pocketed tape. After picking, the pick arm and the place arm are rotated into facing arrangement, whereupon the die is transferred to the place head of the place arm and a camera of the optical inspection system to detect defects in the die. After inspection, the place arm rotates toward the pocketed tape and places the die into the pocketed tape. Additional cameras of the optical inspection system allow for calibration of the pick and place arms, as well as monitoring of the die transfer process.

Abstract: A sorting machine at least for flat postal items comprises a stacking module having a plurality of stacking stations, which define respective channels along which the postal products are carried and a first plurality of rollers for handling the postal products along the stacking stations, a first carrying assembly defining a second channel configured for carrying the postal products towards the stacking module and comprising a second plurality of rollers for carrying the postal products, a plurality of deviating assemblies, each of which comprises a first device selectively mobile for deviating a flat into the channel of the desired stacking station, and a second carrying assembly delimiting an outlet channel communicating with the plurality of stacking stations, wherein at least one of the first and second rollers is mobile transversely with respect to the direction of conveyance of the postal products on the machine.

Abstract: The present teachings relate to techniques and equipment for mail item processing. More particularly, the present teachings provide for a method and system for the sorting of mixed mail items. Multiple sort schemes are loaded on a mixed mail sorter for different clients. A first sorting run, controlled with a first sort scheme, is conducted such that the mail items for a first client are transported to a first sub-set of mail sort bins. After the first sorting run is ended, a switchover is performed such that a second sorting run, which is carried out with another sort scheme, can be started, thereby reducing the changeover times between sorting runs.

Abstract: To effectively utilize coal ash while reducing mercury concentration in cement kiln exhaust gas. Coal ash is received from a thermal power plant or the like; the received coal ash is separated into ash and unburned carbon; the separated ash is utilized in a cement manufacturing facility as a cement raw material; and the separated unburned carbon is utilized in the cement manufacturing facility in accordance with mercury concentration in gas exhausted from a cement kiln of the cement manufacturing facility. In case that the mercury concentration in the gas exhausted from the cement kiln of the cement manufacturing facility is high, in the coal ash, unburned carbon with high mercury content can be treated in facilities other than the cement manufacturing facility without feeding the unburned carbon to the cement manufacturing facility, or the quantity of such unburned carbon fed to the cement manufacturing facility can be adjusted.

Abstract: Actuators, pumps, clutches, brakes and other assemblies may utilize field-responsive fluids that include a plurality of particles suspended in a base fluid. A positive displacement pump is provided by causing particles to align into chains and walls which inhibit traversal by fluid within a fluid enclosure. The field which aligns the particles is moved, thereby causing the walls of aligned particles to move. Because traversal of the walls by the fluid is inhibited, fluid is displaced by movement of the walls of aligned particles. A reciprocating positive displacement pump can be provided by ceasing particle alignment and returning the particles to a starting position. Objects may also be moved in response to collision with chains or walls of aligned particles that move in response to field movement. Fluid circulation features are provided for preventing agglomeration of particles when translating torque between plates in relative rotational movement.

Abstract: A mail sorter, method, and software product are used for sorting inbound mail pieces and outbound mail pieces. The mail sorter includes sorter modules cooperatively engaged with each other, so as to receive mail pieces that are a mixture of both inbound mail pieces and outbound mail pieces, and so as to sort both the inbound mail pieces and the outbound mail pieces. The mail sorter also includes an unsorted mail piece path that is utilized by both the inbound mail pieces and the outbound mail pieces. The outbound mail pieces are mail pieces destined for sorting at a remote postal facility prior to delivery to destination addresses, whereas the inbound mail pieces are mail pieces that are not destined for sorting at a remote postal facility prior to delivery to destination addresses.

Abstract: A method for refining inorganic short fibers at a high yield rate. In the refining method of inorganic short fibers according to the present invention, an electric field is applied to dielectric liquid in which inorganic short fibers that include impurities are dispersed. The inorganic short fibers to which the electric field is applied are polarized and bonded with each other. The inorganic short fibers in the dielectric liquid are caused to fall. The falling inorganic short fibers are collected separately from the falling impurities utilizing the difference between the falling rate of the bonded inorganic fibers and the falling rate of the impurities.

Abstract: An apparatus, system, and method are disclosed for sorting purchase items. A selection module selects a plurality of categories. In one embodiment, the selection module receives a category selection. In addition, the selection module may receive a criterion selection for the category selection and receive a modification for the criterion selection. The selection module may further modify the criterion of the selected category with the modification. An identification module identifies a purchase item. An association module associates a selected category of the plurality of categories with the purchase item. A sorter sorts the purchase item to a specified bin. The specified bin is associated with the selected category. In one embodiment, a bagger may bag one or more purchase items from a bin.

Abstract: Disclosed is an installation for sorting incoming mailings which are assigned to a first plurality of first preselected directions or a second plurality of second remaining sorting directions, according to which the mailings are distributed to receptacles of a track, each mailing being deposited into one of several first receptacles for the first plurality of first preselected sorting directions or into at least one of the other receptacles for the second plurality of second remaining sorting directions. At least one external receptacle from an additional track is replaced with a receptacle from one of the preselected first sorting directions of the track via an interface at least during one passage of the track, the additional track is used as a storage device for the receptacles, and replaced receptacles can be redirected to the respective track thereof via the interface.

Abstract: A method and an arrangement for synchronizing distribution information of a sorting stock are disclosed. The sorting stock has information relating to a sorter element of a sorter loaded with the sorting stock. The sorter element is moved, together with a plurality of further sorter elements, on a path closed on itself past a laying-down station where the sorting stock is laid onto the support of this sorter element. The occupancy of the sorter element is recognized by an image comparison and the information known before the laying-down relating to the sorting stock is assigned unequivocally to the sorter element recognized as fed.

Abstract: A mail sorter including a conveying surface and a main paddle movably disposed on a slide member for supporting a first end of a main stack of mail pieces while traversing along the conveying surface to apply a first stacking pressure to the mail pieces. An auxiliary paddle is also disposed on the slide member for segregating an auxiliary stack of mail pieces from the main stack of mail pieces. The auxiliary paddle is moveable between a first position where the auxiliary paddle is free of contact with any of the mail pieces and a second position where the auxiliary paddle supports the auxiliary stack of mail pieces against the main paddle to apply a second stacking pressure to the auxiliary stack of mail pieces, the second stacking pressure being less than the first stacking pressure.

Abstract: A mail justifier system including at least one bucket for holding a flat article and a plurality of ramps configured to contact the flat article through an opening defined on the bucket to raise the flat article to a desired level. A plurality of parallel rollers is configured to enter into the opening and contact the flat article. The parallel rollers rotate causing the flat article to move within the bucket from a first position to a second position.

Abstract: sorting device for RFID tags, comprising a dispensing unit for supplying RFID tags which are applied to a transport belt to a dispensing area, in which the RFID tags are detached from the transport belt; a pick-up unit having a plurality of transport units for respectively picking up the RFID tags in a respective pick-up area onto a corresponding transport belt of the transport units and a positioning device for positioning the dispensing area and a selected pick-up area with respect to one another so that the RFID tags detached from the transport belt in the dispensing area are picked up by the pick-up area of the selected transport unit.

Abstract: The present invention provides an apparatus for discriminating the kind of a sheet material, comprising: a substrate having a recessed portion; a press member situated so that a sheet material can be deflected using the recessed portion; a support member that is deformed as the sheet material situated to cover the recessed portion is pressed by the press member and thereby deflected; and a sensor for detecting the deformation amount of the support member, wherein the kind of the sheet material is discriminated on the basis of detecting the deformation amount of the support member by the sensor.

Abstract: An apparatus and method for treating a least a portion of one or more initial seed samples to create one or more treated seed samples for use in research applications is provided. In various embodiments, the apparatus and method utilize two or more seed treaters operating in parallel to increase throughput for treating a portion of one or more initial seed samples. The apparatus and method may also include a metering station configured to distribute at least a portion of the one or more initial seed samples to the two or more seed treaters. As a result, the apparatus and method are configured to efficiently and accurately treat seed samples.

Abstract: A cart is towed behind a combine harvester for collecting corn cobs and includes a conveyer belt feeding into a system for separating cobs from residue to be discharged and a tank for receiving and transporting the cobs. An unload auger is provided from the tank to one side of the cart while the cart moves forward. Power for driving the cart is obtained from a chopper drive of the combine harvester. The separating arrangement includes a series of sequential blower fans for blowing air through the discharged material as it is discharged from a conveyor and into a spreading guide disperses the residue. The cobs are conveyed using a series of augers where the auger to flight distance is at least 2 inches and particularly a pair of augers feed the cobs through a front wall of the tank so as to push cobs upwardly into the tank.

Abstract: The present invention provides an apparatus for discriminating the kind of a sheet material, comprising: a substrate having a recessed portion; a press member situated so that a sheet material can be deflected using the recessed portion; a support member that is deformed as the sheet material situated to cover the recessed portion is pressed by the press member and thereby deflected; and a sensor for detecting the deformation amount of the support member, wherein the kind of the sheet material is discriminated on the basis of detecting the deformation amount of the support member by the sensor.

Abstract: A paper sorting apparatus includes a scanning unit configured to scan an image printed on a paper, a printing ratio determining unit configured to determine a printing ratio as a ratio of an area of the printed image as scanned by the scanning unit to a whole area on the paper with the printed image thereon, a classification determining unit configured to determine a recycling classification of the paper based upon the printing ratio determined by the printing ratio determining unit, and a sorting assist unit configured to assist sorting of the paper in accordance with the recycling classification of the paper determined by the classification determining unit.

Abstract: A device and a method for transporting a flat object are provided. A feeder module temporarily holds the object in a feeder gripping area and transports it. A first transfer component takes the object over from the feeder module, holds it temporarily in a first transfer gripping area, transports it in the first transfer gripping area at a first transfer speed which can be changed in terms of time and passes it on to the second transfer component. A second transfer component takes the object over from the first transfer component, holds it temporarily in a second transfer gripping area, transports it in the second transfer gripping area at a second transfer speed which can be changed in terms of time and passes it on to a removal module. The removal module temporarily holds the object in a removal gripping area and transports it.

Abstract: A mail processing system has an infeed line coupled to receive a first article from a feeder. A loading device is coupled to receive the first article from the infeed line at a first speed, and a transfer unit is coupled to receive the first article from the loading device, wherein the transfer unit is configured to transport the first article at a second speed, which is lower than the first speed.

Abstract: The invention relates to a device for separating a flowing medium mixture into at least two fractions, comprising rotating means, means for physically increasing the difference in mass density of the fractions for separating, a feed for medium and a first outlet for discharging one of the fractions of the separated medium mixture. The invention also relates to a method for separating a flowing medium mixture.

Abstract: Pollination process is disrupted by use of a pollination-disruption polynucleotide that renders the pollen unable to fertilize a sexually compatible ovule. The non-lethal nature of the pollen disruption polynucleotide is advantageous, particularly when operably linked to a transgenic polynucleotide of interest and prevents transmission of the polynucleotide through pollen. non-lethal markers are employed in an embodiment in which transgenic and non-transgenic seed can be sorted. A recombinase excision system is employed in an embodiment to activate the pollen disruption polynucleotide.

Abstract: The disclosure provides an article having a circuit mounted with parts characterized by comprising an electronic part soldered with a lead free solder and having an identification marking indicating no inclusion of lead and an electrical appliance including the same. The present invention also provides a recycling method of wastes of the same. The present invention can offer an article having a circuit mounted with parts and an electrical appliance including the same both of which facilitate identification whether lead which is poisonous to human body is contained or not.

Abstract: A transport track extends through first and second stations for transporting paper postal items through the stations. The first and second stations are equipped with first and second drives for driving circulatable surfaces of the respective station along the transport track. The second drive is controlled for driving at least one of the second station's circulatable surfaces at a circumferential speed higher than the circumferential speed of the first station's circulatable surfaces. While a stack of postal items passes from the first station to the second station, highest normal force exerted thereon by the circulatable surfaces of the second station is larger or smaller than the highest normal force exerted thereon by the circulatable surfaces of the first station.

Abstract: A new and improved mail sorting system, which is able to dramatically increase the throughput sorting volume of mail pieces or articles, comprises the incorporation of a plurality of cross-circulation path (CCP) conveyors within a conventional looped or folded conveyor belt system whereby, in effect, mail pieces or articles can be effectively removed from primary conveyor flow path sections so as to create gaps or spaces upon the primary conveyor flow path sections into which additional mail pieces or articles can be introduced through means of a second input or infeed port. In addition, a plurality of the new and improved mail sorting systems can be integrated together into a multi-system mail sorting system wherein off-shoot or auxiliary outfeed conveyor belt sections can feed pieces or articles of mail from any particular one of the mail sorting systems to the second input or infeed ports of the other mail sorting systems so as to render the overall system still more efficient.

Abstract: A method for making a sex determination in avian hatchlings involves the following activities. A process line is equipped to process an endless plurality of hatchlings. The process line has an ultrasound inspection station for the hatchlings. The ultrasound inspection results are analyzed to find the presence of given sex-determinative structure for each hatchling. If the given sex-determinative structure is found then a first category assignment is made. The hatchling is sorted according to its category assignment. The category assignments might number two or three or so including positively-identified one sex, positively-identified other sex, and default to waste for any of various reasons.

Abstract: A method for sizing a surface cross-linked water-absorbent resin removed coarse particles and fine powder is provided. Sized resin particles are obtained by classifying water-absorbent resin particles to remove an aggregates and fine powder in the particles, disintegrating the obtained aggregates and classifying the products of the disintegration to remove coarse particles and fine powder contained in the products.

Abstract: In order to provide a quality evaluation apparatus having excellent measurement accuracy in obtaining quality evaluation values of fruits and vegetables, transmitted light from one or more measured objects is received by a photo-detective sensor of the charge storage type, charges are stored in the photo-detective sensor until a predetermined charge storage time lapses from start of the charge storage, a charge storage discharge process is repeatedly executed for releasing the charges stored in the photo-detective sensor until lapse of a predetermined discharge time, the stored charges are released when the measured object reach a position for measurement, and a measurement charge storage process is executed for storing charges to be used as photo-detective information for quality evaluation.

Abstract: A method of sorting mail according to the invention includes the steps of receiving a plurality of first mail pieces of unknown origin in a first apparatus for bulk processing of the mail pieces, processing the mail pieces in the first apparatus by one of testing the mail pieces to determine if a potentially dangerous microorganism is present, sterilizing the mail pieces to destroy microorganisms on mail pieces, or both, and then if no contamination is detected or if sterilization is carried out, combining first the mail pieces at a later stage of postal processing with second mail pieces from senders identified as having a lesser risk of contamination than the first mail pieces of unknown origin. The invention further provides mail contaminant detection and sterilization systems suitable for use in such a method.

Abstract: To provide a process for producing an aluminum oxide powder, whereby the content of impurities is controlled by a physical means. A process for producing an aluminum oxide powder, which comprises pulverizing electrofused alumina by a batch system and classifying the obtained pulverized product to obtain an aluminum oxide powder different in the content of impurities. It is possible to obtain aluminum oxide of high purity by pulverization to a smaller average particle size and separating a powder having a larger average particle size by classification.