Abstract: An edit object is selected by displaying a plurality of edit objects such as figures or characters closely arranged or overlapped on a display screen. A pointer is used to specify a desired position on the main screen, and determine with a candidate selecting device whether or not a plurality of edit objects exists at a specified pointer position or in a predetermined region based on the specified position. If a plurality of edit objects exists, the edit objects existing at the position or in the predetermined region are selected as selective candidates. A subscreen is displayed on the display screen by a subscreen display device. The subscreen has a plurality of information regions which correspond to respective selective candidates. The pointer is moved on the subscreen, thus changing the display of the edit object on the main screen which corresponds to the information region indicated at the pointer position on the subscreen by highlighting or changing to a specific color.

Abstract: A storage stores n-dimensional information, n being an integer greater than or equal to three. A display displays an icon which is provided with a central region and a peripheral region surrounding the central region, and displays information, among the n-dimensional information stored in the storage, corresponding to a given displayed region within a two-dimensional cross-section formed in two predetermined dimensions, and displays a cursor. A selector positions the cursor at a desired area of the icon and selects the desired area.

Abstract: The invention relates to searching for a desired data item within a group of data. Representative samples among a group of data to be searched are displayed, and two representative samples in display are selected to specify a new area of data to be searched. Thus, the portion of the data is bracketed and narrowed down, and the desired data item is found quickly and efficiently.

Abstract: To allow automatic determination of the order of drilling in slot drilling.The positions of holes located along a line are described via a binary vector. The order of drilling is also described via a binary vector. The former binary vector is made to correspond to the latter binary vector through a conversion matrix, where every corresponding partial matrix is regular. The positions of the holes are determined from the drilling order, or the drilling order is determined from the positions of the holes by their correspondence.

Abstract: There is disclosed carbon black for a tire tread rubber which has a nitrogen adsorption specific surface area (N.sub.2 SA) of 60 to 160 m.sup.2 /g and a dibutyl phthalate absorption (DBP) of 90 to 150 ml/100 g which belong to the respective regions of hard grades of carbon black, and an intraaggregate void volume Vp (ml/g) which is at most equal to the value calculated according to the formula.

Abstract: A rubber composition comprising: 100 parts by weight of a rubber component and 35 to 100 parts by weight of a furnace carbon black having a nitrogen adsorption specific surface area (N.sub.2 SA) of from 60 to 100 m.sup.2 /g, a dibutyl phthalate absorption (DBP) of from 90 to 150 ml/100 g, a .DELTA.DBP (DBP24M4DBP) of from 15 to 40 ml/100 g, an aggregate size distribution (.DELTA.Dst) of from 50 to 150 nm, and an intraaggregate pore mode diameter (D.sub.P) which satisfies the following formula:D.sub.P .ltoreq.1.543Dst-55.0wherein D.sub.P represents the mode diameter of the maximum frequency in a carbon black intraaggregate pore diameter distribution determined using a differential scanning calorimeter (DSC) and Dst represents the mode Stokes diameter of carbon black aggregates determined using a disk centrifuge (DCF).

Abstract: A rubber composition comprising 100 parts by weight of a rubber ingredient compounded with 35-100 parts of a carbon black, said carbon black having a nitrogen adsorption specific surface area (N.sub.2 SA) of 60-160 m.sup.2 g and a dibutyl phthalate adsorption number (DBP) of 90-150 ml/100 g, and the intraaggregate mode diameter (Dp mode diameter) of the carbon black satisfying the following formula:Dp mode diameter .gtoreq.75.2.times.(DBP/N.sub.2 SA)+8.0 wherein the Dp mode diameter refers to a mode diameter at the maximum frequency in the pore diameter distribution of carbon black particles measured by means of a differential scanning calorimeter (DSC).

Abstract: A rubber composition comprising 100 parts by weight of a rubber component which consists of a natural rubber alone or a blend of a natural rubber with a dienic synthetic rubber and from 35 to 100 parts by weight of a carbon black compounded into the rubber. The carbon black has a nitrogen adsorption specific surface area (N.sub.2 SA) of 100 to 160 m.sup.2 /g and also a true specific gravity and a mode diameter of intraaggregate pore (Dp) which satisfy, respectively, the relations1 true specific gravity.ltoreq.1.8379-0.0006.times.N.sub.2 SA(1) ##EQU1## where Dp in the formula (2) represents the mode diameter at the maximum frequency in the intraaggregate pore diameter distribution of the carbon black determined with a differential scanning calorimeter (DSC), and DBP represents the dibutyl phthalate absorption number.

Abstract: There is disclosed carbon black for a tire tread rubber which has a nitrogen adsorption specific surface area (N.sub.2 SA) of 60 to 160 m.sup.2 /g and a dibutyl phthalate absorption (DBP) of 90 to 150 ml/100 g which belong to the respective regions of hard grades of carbon black, and an intraaggregate void volume Vp (ml/g) at least equal to the value calculated according to the equation: [0.00976.times.DBP-0.0358].

Abstract: A rubber composition comprising 100 parts by weight of a rubber component and compounded therewith 30 to 100 parts by weight of a carbon black of the category of hard carbon blacks having a nitrogen adsorption specific surface area (N.sub.2 SA) of 58 to 139 m.sup.2 /g, a DBP absorption number of 90 to 150 ml/100 g and having such selective characteristics that the intraaggregate void size, D.sub.p (nm), as measured by mercury porosimetry is equal to or higher than a value calculated by the relational formula [-0.22.times.(N.sub.2 SA)+60.8].

Abstract: According to this invention, a rubber composition is provided, which comprises 100 parts by weight of a rubber component and 25 to 250 parts by weight of carbon black, which carbon black falls within the property range of an electron-microscopic average particle diameter (dn) of above 31 millimicron, an iodine adsorption number of 35 to 60 mg/g and a dibutyl phthalate absorption number (DBP) of 90 to 150 ml/100 g and further has a selected property such that the Dst mode diameter (m.mu.) is below the value (m.mu.) obtained from the following equation:Dst=2.65.times.dn+0.64.times.DBP-27.

Abstract: A rubber composition is provided which comprises 100 parts by weight of basic rubber and 25 to 250 parts by weight of furnace carbon black having the particle properties defined by an N.sub.2 SA higher than 60 m.sup.2 /g and a DBP higher than 108 ml/100 g and the following selective characteristic values.True specific gravity.ltoreq.-0.0006.times.N.sub.2 SA+1.8379Tinting strength (%).gtoreq.0.6979.times.N.sub.2 SA-0.4278.times.DBP+203.3Range of aggregate size distribution (.DELTA.Dst).gtoreq.0.6118.times.(Dst mode diameter)+30.