Abstract: The invention relates to a pharmaceutical composition for diabetic nephropathy and its preparation, and the application in preparing of medicine for diabetic nephropathy. The pharmaceutical composition is made up of at least one of 7-hydroxycoumarin and 7-hydroxy-6-methoxycoumarin as active ingredient, and the weight percentage of active ingredient is 0.1-99.5%. Moreover, the pharmaceutical composition is mainly used for the prevention and cure of diabetic nephropathy. For the abundant material, remarkable effect on prevention and cure for diabetic nephropathy and convenience for use, it will be a new facultative drug for patients.

Abstract: The invention relates to application of 4,4?-diphenylmethane-bis(methyl)carbamates (DPMC) extracted and isolated from Cortex Mori and preparation of medicine for diabetic nephropathy. The pharmaceutical composition is made up of DPMC as active ingredient and the normal drug carriers, and the weight percentage of active ingredient is 0.1-99.5%. For the remarkable effect of prevention and cure for diabetic nephropathy and convenience for use, it will be a new facultative drug for patients.

Abstract: A method for establishing clock tracing relations and an apparatus for computing clock tracing relations are disclosed. The method includes: computing a Shortest Path Tree (SPT) from a clock source access node to other nodes in a network; selecting nodes governed by the clock source access node according to the SPT and the source information corresponding to the SPT; and establishing clock tracing relations from the clock source access node to the governed node consecutively along the SPT. The apparatus for computing clock tracing relations includes: a path computing unit, a source selecting unit, and a path issuing unit.

Abstract: A clock tracing method includes: determining a shortest path to each source network element, and selecting a best source network element among all the source network elements; determining a shortest path to the best source network element according to the shortest path, using the shortest path to the best source network element as a clock tracing path if the shortest path to the best source network element is different from an old clock tracing path and a traceable message is received, and using the clock tracing path for tracing clocks; and using the old clock tracing path for tracing clocks if the shortest path to the best source network element is the same as the old clock tracing path or no traceable message is received. A clock tracing apparatus and a network element are also provided. The provided clock tracing method, apparatus and network element may ensure high-quality clock transmission, and the fast performance of automatic clock tracing.

Abstract: A system for communicating cross-connection information within an optical network by use of wavelength information is provided. Cross-connection information in Wavelength Division Multiplexing (WDM) devices is abstracted, to produce wavelength reachability information and wavelength occupation status information for each node within the optical network. Cross-connection information is distributed from one node to all other nodes or a Path Calculation Equipment (PCE), through extended routing protocols, providing a base for calculating service paths.

Abstract: Embodiments of the present invention provide a method and an apparatus for managing and transmitting fine granularity services. The method includes: increasing the bandwidth of an existing LSP which controls a fine granularity service with the same granularity as that of a new fine granularity service to be established, upon determining that the new fine granularity service shares the same source node and destination node with the existing LSP; and transmitting the new fine granularity service with the increased bandwidth of the existing LSP. The bandwidth utilization rate of optical networks can be obviously increased when transmitting fine granularity services in accordance with the embodiments of the present invention; furthermore, the storage space of each node through which the LSP passes is saved and the recovery performance of fine granularity services is guaranteed.

Abstract: The embodiments of the invention provide a method of routing convergence in a control plane of an intelligent optical network, which includes: a function unit perceiving a service link state transmitting an alarm notification message indicating a failure in a service link to a routing protocol unit when the service link is in failure; the routing protocol unit confirming a service link failure in the control plane according to the alarm notification message. The embodiments of the invention also provide an apparatus of routing convergence in a control plane of an intelligent optical network. According to the embodiments of the invention, the establishment of a new service or re-routing may be implemented within several seconds or even hundreds of milliseconds after the service link failure in the control plane occurs.