Abstract: A golf ball 2 includes a core 4, an inner cover 6 positioned outside the core 4, and an outer cover 8 positioned outside the inner cover 6. The core 4 has a capsule 14, a plurality of separators 16, an electronic unit 18, and a plurality of fillings 20. The capsule 14 has a melting point of not lower than 100° C. A ratio P1 of a volume Vr of the capsule 14 to a volume Vc of the core 4 is not less than 25% and not greater than 75%. The electronic unit 18 is housed in the capsule 14. The electronic unit 18 detects behavior of the golf ball 2.

Abstract: Provided is an analysis apparatus for analyzing a behavior of a ball that has a center of gravity and in which an acceleration sensor is installed at a position shifted from the center of gravity by a predetermined shift amount, the analysis apparatus including a control unit configured to derive a centrifugal acceleration that is applied to the acceleration sensor, based on acceleration data that is output by the acceleration sensor, and derive at least one of a direction of a rotation axis and a rotation speed of a spin of the ball, based on the predetermined shift amount and the centrifugal acceleration.

Abstract: If there exists a route having imperfection in facilities as the result of judgement in step S27, contents and route of the imperfection of this facilities are specified (step S31), and then it is judged whether the facilities having the imperfection can be obtained from outside including other facilities and public facilities, and it is judged whether the facilities having the imperfection can be obtained by new construction (step S33) If it is impossible to obtain to the facilities from outside and to obtain the facilities by new construction, this route is output as impossible route (step S35).

Abstract: There is provided a cable position information management system, management method and program which efficiently perform cable position measurement, and manage the measurement information. Furthermore, there is provided a facility information management system and a facility information management program which allow a user to perform determinations relating to facility management immediately and accurately by the sharing and integration of individually managed facility information. In addition, there is provided a cable core wire management system, a cable core wire management method and a cable core wire management program which realize an improvement in efficiency and reliability of construction work performed on networks such as optical fiber networks.

Abstract: There is provided a cable position information management system, management method and program which efficiently perform cable position measurement, and manage the measurement information. Furthermore, there is provided a facility information management system and a facility information management program which allow a user to perform determinations relating to facility management immediately and accurately by the sharing and integration of individually managed facility information. In addition, there is provided a cable core wire management system, a cable core wire management method and a cable core wire management program which realize an improvement in efficiency and reliability of construction work performed on networks such as optical fiber networks.

Abstract: A process (I) for producing an &agr;-olefin polymerization catalyst whereby (1) a titanium compound is reduced by an organomagnesium compound in the presence of an organosilicon compound to produce a reduction solid, (2) the reduction solid is aged to produce a solid product, (3) the solid product is contacted with an ether compound, titanium tetrachloride and an organic acid halide compound, to produce an organic acid halide-treated solid, (4) the organic acid halide-treated solid is contacted with a mixture of an ether compound, titanium tetrachloride and an ester compound, or with a mixture of an ether compound and titanium tetrachloride to produce a solid catalyst component containing a titanium compound, and (5) the solid catalyst component is contacted with an aluminum compound and an electron donor compound to produce a catalyst for &agr;-olefin polymerization. A process (II) for producing an &agr;-olefin polymer using a catalyst produced by process (I).

Abstract: There are provided (I) a process for producing a catalyst for &agr;-olefin polymerization, which comprises the steps of:

Abstract: A road information database for accumulating and managing road network information, a facilities database for accumulating and managing facilities information which is useful for setting a conduit together with auxiliary information including a place of facilities, a person-in-charge, and a facilities using condition, and an obstacle/limitation database for accumulating and managing names of obstacle and limitation against the setting of the conduit together with accessory information including contents of obstacle/limitation, a place, a period of time, and an avoiding condition of obstacle/limitation are referred to, thereby retrieving at least one completion-possible route candidate which can complete from the starting point to the end point such that there is no lack or imperfection in the facilities including supplement or new construction of facilities in a route on a road connecting between the starting point and the end point, and determining an optimal route based on a route length, reliability and co

Abstract: A state in which each of sections constituting a transmission line is installed is obtained as data from the database for facility evaluation, and the facility-evaluation value of each section is calculated according to the state in which each section is installed and the facility-evaluation rank of the transmission line as a route is determined by a means for determining the facility-evaluation rank. On the other hand, the environment state in which each section of the transmission line is present is obtained as data from the database for environment evaluation, and the environment-evaluation value of each section is calculated according to the environment state of each section and the environment-evaluation rank of the transmission line as a route is determined by a means for determining the environment-evaluation rank.

Abstract: A polypropylene random copolymer obtained by copolymerizing propylene and an &agr;-olefin or propylene, ethylene, and &agr;-olefin using a Ziegler-Natta catalyst substantially in the absence of solvent, wherein propylene content is from 92.3 to 75.0% by weight, the ethylene content (E) is from 0 to 2.7% by weight, and the &agr;-olefin content is from 5.0 to 25.0% by weight, and wherein the content (C) of 20° C. xylene-soluble components in the random copolymer satisfies following formulae (1) to (3); in the copolymer wherein the ethylene content (E) is less than 1.5% by weight, C≦12.0 (weight %)  (1) in the copolymer wherein the ethylene content (E) is from 1.5% by weight to 1.8% by weight, C≦42.0−20.0×E (weight %)  (2) and in the copolymer wherein the ethylene content (E) is from 1.8% by weight to 2.7% by weight, C≦6.0 (weight %)  (3).

Abstract: A polypropylene composition comprising a melt-kneaded polyprolylene composition obtained, using Zieglar-Natta catalyst, by polymerizing a monomer comprising propylene to form a polymer comprising polypropylene (component A) in amount of from 60 to 80% by weight to the total polymer amount in substantially the absence of an inert solvent in a 1st step and then polymerizing a mixture of ethylene content of from 20 to 50% by weight (component B) in a vapor phase to form an ethylene-propylene copolymer (component B) in amount of from 20 to 40% by weight to the total polymer amount in a 2nd step, said polypropylene composition being such that the intrinsic viscosity of component B ([.eta.]B) is at least 2.0 dl/g and the ratio ([.eta.]B/[.eta.]A) of the intrinsic viscosity of the component B to the intrinsic viscosity of the component A ([.eta.]A) is 1.8 or less and the melt flow rate of the polypropylene composition after melt-kneaded being 0.5 to 10 g/10 minutes.