Abstract: A function management device that manages, in a communication system including a plurality of pieces of customer premises communication equipment and a server capable of providing a function to the plurality of pieces of customer premises communication equipment, the function provided by the server, and includes a resource management unit configured to collect resource information from the plurality of pieces of customer premises communication equipment, a network management unit configured to collect, from the server, network band information of each of the functions, the network band being between the plurality of pieces of customer premises communication equipment and the server, and a function processing unit configured to activate a virtual machine on one of the plurality of pieces of customer premises communication equipment on the basis of the resource information and the network band information to cause a first function selected on the basis of a band occupancy ratio from among the functions provided

Abstract: A communication apparatus connected to a virtual apparatus having an address dispensing function via an access network is provided, wherein the communication apparatus includes a communication confirmation unit configured to perform a communication confirmation between the virtual apparatus and the communication apparatus; and an address dispensing unit configured to dispense an address to a user terminal under control of the communication apparatus when communication between the virtual apparatus and the communication apparatus is not able to be confirmed by the communication confirmation unit, and the address dispensing unit causes the user terminal to forcibly release the address when the communication between the virtual apparatus and the communication apparatus is able to be confirmed by the communication confirmation unit.

Abstract: A policy conflict system includes a determining unit that determines, according to an instruction for application of a second polity from a second network provider to a first network provider that performs policy control based on a set of first policies, presence or absence of a third policy conflicting with the second policy, a calculating unit that, when the determining unit determines that the third policy is present, concerning each of the second policy and the third policy, calculates priority levels different from each other referring to a storing unit storing information indicating a target that should be prioritized concerning an item relating to a policy, and an imparting unit that imparts the priority levels calculated by the calculating unit to each of the second policy and the third policy. Consequently, the policy conflict resolution system enables a conflict between policies to be resolved.

Abstract: A policy conflict detection system includes a determination unit configured to determine, in response to an instruction to apply to a first network operator which performs policy control based on a set of first policies, a second policy from a second network operator, whether a third policy, which matches the second policy in terms of a priority, an application period, a control target, and a control condition and which has a control content exclusive of that of the second policy is present among the first policies, thereby enabling detection of conflict of the policies.

Abstract: A load distribution system has: determination means for determining, upon an input port receiving a packet, a flow attribute indicating whether a flow configured by the packet is a flow that tends to include many long packets or a flow that tends to include many short packets; and output means for outputting the packet to a packet transfer device in a load state indicating that a load applied by the flow of the flow attribute is low, of a plurality of packet transfer devices, in accordance with the flow attribute determined by the determination means.

Abstract: An information technology utilization evaluation device includes a processor configured to evaluate a current state of a first evaluation element. The first attainment level is a current attainment level of the first evaluation element. The first evaluation element is progress of automation of process management. The processor is further configured to determine a second attainment level by evaluating a current state of a second evaluation element. The second attainment level is a current attainment level of the second evaluation element. The second evaluation element is scale of the set in which information technology is utilized for the process management. The processor is also configured to determine a target level, using the first attainment level and the second attainment level. The target level is an attainment level recommended as a target.

Abstract: A function management device that manages, in a communication system including a plurality of pieces of customer premises communication equipment and a server capable of providing a function to the plurality of pieces of customer premises communication equipment, the function provided by the server, and includes a resource management unit configured to collect resource information from the plurality of pieces of customer premises communication equipment, a network management unit configured to collect, from the server, network band information of each of the functions, the network band being between the plurality of pieces of customer premises communication equipment and the server, and a function processing unit configured to activate a virtual machine on one of the plurality of pieces of customer premises communication equipment on the basis of the resource information and the network band information to cause a first function selected on the basis of a band occupancy ratio from among the functions provided

Abstract: A policy conflict detection system includes a determination unit configured to determine, in response to an instruction to apply to a first network operator which performs policy control based on a set of first policies, a second policy from a second network operator, whether a third policy, which matches the second policy in terms of a priority, an application period, a control target, and a control condition and which has a control content exclusive of that of the second policy is present among the first policies, thereby enabling detection of conflict of the policies.

Abstract: A load distribution system has: determination means for determining, upon an input port receiving a packet, a flow attribute indicating whether a flow configured by the packet is a flow that tends to include many long packets or a flow that tends to include many short packets; and output means for outputting the packet to a packet transfer device in a load state indicating that a load applied by the flow of the flow attribute is low, of a plurality of packet transfer devices, in accordance with the flow attribute determined by the determination means.

Abstract: A policy conflict system includes a determining unit that determines, according to an instruction for application of a second polity from a second network provider to a first network provider that performs policy control based on a set of first policies, presence or absence of a third policy conflicting with the second policy, a calculating unit that, when the determining unit determines that the third policy is present, concerning each of the second policy and the third policy, calculates priority levels different from each other referring to a storing unit storing information indicating a target that should be prioritized concerning an item relating to a policy, and an imparting unit that imparts the priority levels calculated by the calculating unit to each of the second policy and the third policy. Consequently, the policy conflict resolution system enables a conflict between policies to be resolved.

Abstract: A communication apparatus connected to a virtual apparatus having an address dispensing function via an access network is provided, wherein the communication apparatus includes a communication confirmation unit configured to perform a communication confirmation between the virtual apparatus and the communication apparatus; and an address dispensing unit configured to dispense an address to a user terminal under control of the communication apparatus when communication between the virtual apparatus and the communication apparatus is not able to be confirmed by the communication confirmation unit, and the address dispensing unit causes the user terminal to forcibly release the address when the communication between the virtual apparatus and the communication apparatus is able to be confirmed by the communication confirmation unit.

Abstract: A path calculation order determining method executed by a calculating apparatus for calculating a shortest path between a node pair in a network, using information on calculated shortest paths between other node pairs, the method including: a step storing calculated shortest path group information on shortest path groups each including calculated shortest paths from a starting node to one or more terminating nodes except the starting node, and topology information of the network, in a memory medium; and a calculation step of calculating shortest paths, starting from its starting node other than the starting node on the calculated shortest paths and having the most nodes that are located downstream therefrom, and terminating at nodes other than its starting node, using the calculated shortest path group information or the topology information for a path not included in the calculated shortest path group.

Abstract: An engineering tool program, which writes a program to each functional unit of a programmable logic controller, causes a computer connected to the programmable logic controller to perform: an instruction step of instructing each of a plurality of programmable logic controllers to update firmware; and an update step of updating the firmware by writing new firmware to the each functional unit.

Abstract: A calculating apparatus calculates a shortest path connecting two nodes of a network. A shortest-path group, which is a set of shortest paths having node Y as their starting points, can be calculated at once by having calculated a shortest path having node Y as its starting point for each of other nodes. When the shortest-path group having node Y as the starting point is calculated and further if a group of shortest paths having node X as their starting points is stored beforehand in a storing unit, then path portions, which belong to the group of shortest paths having node X as the starting points and further which are paths extending from node Y to the nodes located downstream from node Y, are utilized as part of a result of calculation of the shortest path group having node Y as the starting point.

Abstract: Calculation of a shortest path connecting two nodes of a network involves steps of: comparing a distance of a first communication path between, from among the plurality of nodes, a starting node as a starting point of a communication path and an adjacent node located adjacent to the starting node, to a distance of a second communication path which has already been calculated other than the first communication path and has already been stored; either taking the first communication path as a candidate of the shortest path if the distance of the first communication path is shorter than the second communication path, or taking the second communication path as a candidate of the shortest path if the distance of the first communication path is not shorter than the second communication path; and taking the adjacent node as a next starting node in the comparison step.

Abstract: When constituting a ladder program edition device that edits a ladder diagram, there is provided an edit control unit that generates data of a logical expression corresponding to a logical structure of an input condition and an output condition in a ladder diagram based on an arrangement of circuit elements in a ladder diagram, sets circuit elements that specify the input condition as one circuit unit of one input and one output for each input condition based on the data of the above logical expression, and connects output ends of circuit units to be connected in parallel with each other in the ladder diagram. With this configuration, generation of a syntactically erroneous ladder diagram is prevented.

Abstract: A calculating apparatus calculates a shortest path connecting two nodes of a network. A shortest-path group, which is a set of shortest paths having node Y as their starting points, can be calculated at once by having calculated a shortest path having node Y as its starting point for each of other nodes. When the shortest-path group having node Y as the starting point is calculated and further if a group of shortest paths having node X as their starting points is stored beforehand in a storing unit, then path portions, which belong to the group of shortest paths having node X as the starting points and further which are paths extending from node Y to the nodes located downstream from node Y, are utilized as part of a result of calculation of the shortest path group having node Y as the starting point.

Abstract: A path calculation order deciding method that is implemented by a calculating apparatus (1) which calculates, by use of calculated shortest path between a node pair about a network comprising a plurality of nodes, a shortest path between other node pair comprises: wherein the calculating apparatus comprises a memory medium storing shortest path group information which represents calculated shortest paths each of which is shortest path between the node pair, whose starting nodes are identical and terminating nodes are different from one another, by use of the plurality of nodes and paths between the node pairs and also storing topology information representing topology of the plurality of nodes, and a calculation unit, a calculation step that the calculation unit selects each particular nodes of the plurality of nodes, which is different from the starting node, in decreasing order of the numbers of the downstream nodes from the particular node in calculated shortest path between the node pair represented by th

Abstract: A noise-reducing device for water vehicles including: a rigid housing having a fluid-tightly sealed chamber formed therein, and fixable to a vibrating part of the water vehicle to be displaced with the vibrating part; a mass member housed in the rigid housing with a given gap therebetween so that the mass member is freely movable in the vibrating direction relative to the rigid housing, the mass member being adapted to come into collision with a contact part of the housing during input of vibration; and an elastic element formed on at least one surface of contact on the contact part or mass member.

Abstract: A process for producing aromatic carboxylic acids efficiently by operating a distillation column for separating the vaporized reaction solvent and other useful ingredients from an oxidation reactor while permitting efficient energy recovery without causing any obstruction to turbine and without causing any clogging of the distillation column, said process comprising oxidizing an alkyl aromatic compound in a liquid reaction solvent comprising an aliphatic carboxylic acid with a molecular oxygen-containing gas in the presence of an oxidation catalyst in the said oxidation reactor to form an aromatic carboxylic acid, guiding the oxidation reactor exhaust gas into the distillation column to subject it to a distillation, passing the distilltion overhead gas to a condenser to form a condensate, which is returned to the distillation column, and to generate a steam on the shell side, which is guided to a steam turbine for energy recovery, and burning the condenser exit gas in order to drive a gas turbine for energy r