摘要:
In a turbidimeter for measuring a turbidity of a test solution to be measured i.e. culture solution in a fermentation apparatus, a semiconductor laser diode and a semiconductor photodiode are integrally arranged in a detection portion of the turbidimeter in such a manner that a laser beam emitted from the semiconductor laser diode is made incident upon the semiconductor photodiode through the test solution. Moreover, a protection circuit for the semiconductor laser diode and the semiconductor photodiode is also arranged in the turbidimeter to cut off a current flowed therethrough when an environmental temperature becomes above a predetermined temperature. Therefore, the turbidimeter can be made small in size and light in weight, and the turbidity can be measured accurately over wide range.
摘要:
An indicator for detecting residual ethylene oxide comprising a substrate impregnated with a solution of 4-(4-nitrobenzyl)pyridine and an envelope of the substrate which is at least partially transparent and has low permeability to gaseous ethylene oxide is provided, the envelope being preferably made of a transparent plastic film. With the indicator, an amount of ethylene oxide remaining in various medical instruments, etc. may be estimated by the naked eye since the color of the indicator changes step by step in the course of the release of residual ethylene oxide.
摘要:
This invention relates to an apparatus for automatically sampling a clarified test solution from a suspension to be tested, which comprises two filtering tubes being immersed in the suspension, a circulator connected to the one tube, and a sampling cell connected to the circulator and the other tube. The suspension is sucked by the circulator and filtered through the one tube. The filtered and clarified test solution is sampled in the sampling cell and the residual test solution is returned to the suspension through the other tube. A flow direction of the test solution is reversed at intervals so that the filtering tubes are not blocked by suspending solids.
摘要:
An optical network has: sections for establishing optical paths; a plurality of optical edge routers for connecting external IP networks to the optical network (1001); and a plurality of optical cross connects, for connecting the optical edge routers by the optical paths, having switching sections with respect to an optical pulse unit. In the optical network, each of the optical edge routers has both of: (1) an optical network control instance (INSp) for maintaining topology information in the optical network and switching/signaling the optical paths; and (2) an IP network instance (INSi) for maintaining a routing table in each of the external IP networks and activating routing protocols between the external IP networks and the IP network instance. By doing this, it is possible to realize a multi-layer cooperative function and provide highly safe optical networks, etc.
摘要:
A route switching method for switching a route in a core network that accommodates service networks including user node apparatuses by use of a server storing path information that includes, in every time frame, a route for a working path and a route for a backup path to be switched over from the working path, both of the working path and the backup path established between two boundary node apparatuses each of which is located on a boundary between the service network and the core network. The server calculates, in response to the connection request from the user node apparatus, a route for a working path and a route for a backup path, and requests the boundary node apparatus to establish this working path. The server can send the route for the backup path to the boundary node apparatus before a failure occurs in the core network. The boundary node apparatus establishes the working path in response to the establishment request for establishing the working path from the server, and can perform a quick recovery by switching over the working path to the backup path when a failure occurs in the core network.
摘要:
A plurality of pieces of information about a link (hereinafter referred to as “link information”), which are stored in a common DB, are categorized in accordance with the VPN related to each piece of link information. VPNID, which is information for identifying each VPN, is added to each piece of link information which has been categorized. The link information for the same VPNID is extracted from the link information to which the VPNID for the common DB is added so as to be contained in the corresponding VPNDB. By doing this, it is possible to realize a path design for the customer easily by providing the network information in the VPN provider and the network information of the customer network while realizing a high scalability.
摘要:
Disclosed is an improved turbidimeter or instrument for measuring the concentration of a suspension using diffuser means for converting incident light into diffused light before passing through a suspension. The use of diffused light improves the linearity of the optical density vs. concentration characteristics over a relatively wide range.
摘要:
There is provided a polymer having a high refractive index without forming a complex with inorganic fine particles, being excellent in the solubility in an organic solvent and the coating properties during film formation, and having a high transparency, and further being capable of dispersing optically homogeneously a functional dye such as a nonlinear dye in a high concentration. A hyperbranched polymer containing a thioester group of Formula (1) below [where R1 is a hydrogen atom or a methyl group; Ar1 and Ar2 are independently an aromatic ring group constituted of 5 to 18 ring atoms that is optionally substituted with a C1-6 alkyl group, a C1-6 alkoxy group, a C1-6 alkylthio group, or a halogen atom, the aromatic ring group optionally contains a hetero atom, or is optionally an aromatic ring group formed by two or more fused rings; A′ is a structure of Formula (2) or Formula (3) below; and n is the number of repeating unit structures and is an integer of 2 to 100,000].
摘要:
The path management controller 1 refers to resource information 131 including reservation statuses of working paths and advance reserved paths that are set in every link, so as to calculate a route for setting a new path and set this path in this calculated route. If the route for setting this new path cannot be obtained (1) because of a shortage of residual bandwidth of a link of interest, the path management controller 1 refers to the resource reservation information 131 of working paths and advance reserved paths and calculates an alternative route for another existing path used in the link of interest, and moves this path to the calculated alternative route. On the other hand, if the route for setting this new path cannot be obtained (2) because there is no continuous bandwidth sufficient for setting this new path in the link of interest, the path management controller 1 refers to the resource reservation information regarding working paths and advance reserved paths in the link of interest in the resource information 131, so as to execute the time slot rearrangement.
摘要:
VPNID which is an information for identifying each of VPN is added to each link information which is formed by categorizing a link information in a common DB for each VPN to which the link information relates. The link information for the same VPNID is extracted from the link information to which the VPNID for the common DB is added so as to be contained in the corresponding VPNDB. By doing this, it is possible to realize a path design for the customer easily by providing the network information in the VPN provider and the network information of the customer network while realizing a high scalability.