摘要:
An optical fiber tape having low polarization mode dispersion characteristics and applied to a dense wavelength multiplex (DWDM) transmission system of a transmission rate from several Gb/s to several tens of Gb/S. We have found out that the polarization mode dispersion of an optical fiber tape relates to the loss tangent (tan δ) determined when the dynamic viscoelasticity is measured, and that particularly, if the loss tangent of when a dispersion shift fiber is used is made 0.080 or more and the loss tangent of when a single mode optical fiber is used is made 0.042 or more, the polarization mode coefficient of dispersion (PMD) is reduced to 0.3 ps/√km preferable to realize a DWDM transmission system.
摘要:
An optical fiber tape having low polarization mode dispersion characteristics and applied to a dense wavelength multiplex (DWDM) transmission system of a transmission rate from several Gb/s to several tens of Gb/S. We have found out that the polarization mode dispersion of an optical fiber tape relates to the loss tangent (tanδ) determined when the dynamic viscoelasticity is measured, and that particularly, if the loss tangent of when a dispersion shift fiber is used is made 0.080 or more and the loss tangent of when a single mode optical fiber is used is made 0.042 or more, the polarization mode coefficient of dispersion (PMD) is reduced to 0.3 ps/{square root}km preferable to realize a DWDM transmission system.
摘要:
An energy absorber in which an energy-absorbing property in a collision can be set to a predetermined property is provided. An energy absorber (1) which is installed between an auto body panel and an interior member of an automobile, so as to absorb impact energy of a collision includes a base (2) which is fastened between the auto body panel and the interior member; and a plurality of projections (3) which projects from the base and is formed into a hollow conical shape or a hollow circular truncated cone shape, wherein the plurality of projections has different heights and different number of liner convex ribs (4), the rib projecting from an outer circumferential face of the projection and extending from a leading end of the projection to the base, the projections next to each other are not coupled via the rib, and the rib is not provided on a line connecting the centers of the projections next to each other.
摘要:
A server borrowing apparatus, includes a storing unit that stores lender installation setting information which includes a setting item determined by a server lender for installation of a server which is lent out as resource, a receiving unit that receives a request to lend out the server as the resource and borrower installation setting information which includes a setting item determined by a server borrower for the installation of the server, from a borrowing control apparatus which is connected to a network to manage the server and to control server borrowing, a combining unit that combines the setting item in the borrower installation setting information and the setting item in the lender installation setting information to generate installation setting information for the installation of the server at the server borrowing, and an installing unit that performs the installation of the server based on the installation setting information.
摘要:
The present invention provides a PTO switch mode control device that is capable of performing appropriate idle shutdown when an engine is started, even in the case where an ignition switch is turned ON with a PTO switch ON when the engine is stopped. The PTO switch mode control device has: an ignition switch 3 that is turned ON or OFF to start and stop an engine 1; a PTO switch 4 that is turned ON or OFF to select switch a PTO mode that permits power takeoff, and an inactive mode that does not permit the power takeoff; and an ECU 2 that executes idle shutdown to stop the engine 1 when the engine 1 continuously idles for a predetermined time period, except for the PTO mode state. The ECU 2 functions to establish the inactive mode even when the PTO switch 4 is ON, when the ignition switch 3 is turned ON while the PTO switch 4 is ON, and subsequently establish the PTO mode when the PTO switch is switched from OFF to ON.
摘要:
An end face of an intermediate layer of a multilayer structure is stably covered by surface resin layers at a time of cutting the multilayer structure. A cutting method of the multilayer structure includes the steps of: compressing and deforming the multilayer structure, while extending respective layers of the multilayer structure to provide a thin thickness portion, so that an upper layer bites into a lower layer by pushing a push cutter, by a predetermined amount, into the multilayer structure supported by a cutter receiving portion, in a fused state of at least one of the resin layers forming the multilayer structure; and push-cutting the compressed thin thickness portion S till the push cutter abuts against the cutter receiving portion so as to converge an intermediate layer and surface resin layers of the multilayer structure to the abutting portion A of the push cutter and the cutter receiving portion.
摘要:
When a computer (C1) fails, a failed computer search process (FP) that operates on the computer (C1) is started by another computer such as a computer (C2). When the search process (FP) detects the failed computer (C1), the search process (FP) selects for a provisioning computer (C5) using a provisioning computer search unit (PP2). A boot image setting unit (BS2) selects a storage device (D1) which stores a boot image that has been processed by the failed computer (C1). A boot unit (BB2) boots the selected provisioning computer (C5) using the boot image stored in the selected storage device (D1).
摘要:
In a computer system which achieves a cluster system using two or more computers, a cluster control section has an optimal service allocation section which assigns a service to an optimal computer in accordance with policy information, and a service relocating section which executes relocation of a service according to a change of a load state of the each computer.
摘要:
In a computer system executing a plurality of types of services, a service load monitor measures a load required to execute services in each of the computers. A node load monitor measures a load on each of the computers. A service optimal allocation machine determines an optimal computer and a service to be reallocated to the optimal computer, based on the measurement results of the service load monitor and the node load monitor, and reallocates the determined service to the optimal computer.
摘要:
In a computer system executing a plurality of types of services, a service load monitor measures a load required to execute services in each of the computers. A node load monitor measures a load on each of the computers. A service optimal allocation machine determines an optimal computer and a service to be reallocated to the optimal computer, based on the measurement results of the service load monitor and the node load monitor, and reallocates the determined service to the optimal computer.