Abstract:
The present invention relates to a polyurethane ballast layer, the method for preparing the same and a railway comprising the polyurethane ballast layer. The polyurethane ballast layer provided in this invention comprises a polyurethane-filled ballast layer and a polyurethane external protective layer, wherein the polyurethane-filled ballast layer comprises ballasts and polyurethane foam filled in the space among the ballasts. The polyurethane ballast layer provided in this invention can reduce the probability of ballast crashing, shifting and cracking under heavy load, and separate the ballast track from the outside environment to prevent rain, snow and wastes from entering into the internal space of the ballast track bed. Furthermore, the polyurethane ballast layer can keep the polyurethane foam filled in the ballasts layer away from water in the outside environment to avoid hydrolysis. The polyurethane ballast layer presented in this invention can be used in the railway ballast track bed to extend the track bed maintenance cycle, and save maintenance cost significantly.
Abstract:
This disclosure relates to compositions and methods of their use in detection and identification of a chordopoxvirus in a sample, such as diagnosis of an infection in a subject. The compositions and methods allow for detection and identification of all non-avian low-GC content chordopoxviruses, identification of most known high-GC content chordopoxvirus, and species-specific detection of Canarypox virus, Fowlpox virus, and Sealpox virus.
Abstract:
The purpose of this patent is to teach the methods of application and compositions of cosmetic and therapeutic products for reducing wrinkle appearance and augmenting certain compartments of the facial integument of a mammal, especially a human. These methods and compositions utilize the hypodermis-targeted release from bioadhesive oral films, pastes or patches applied to oral mucosa or teeth for the purpose of improving the appearance or health of the lips and facial skin.
Abstract:
Data duplication may be reduced in cloud storage. First snapshots of one or more remote volumes may be received via a network. Responsive to and/or based on the first snapshots, unique clusters and duplicate clusters may be identified among the valid clusters of the remote volumes. The unique clusters and single instances of the duplicate clusters may be stored in a backup file, such that the backup file is devoid of duplicate clusters. Second snapshots of the one or more remote volumes may be received via the network. Responsive to the second snapshots, the clusters in the backup file that are no longer valid may be utilized to store the valid clusters in the one or more remote volumes not yet stored in the backup file.
Abstract:
Provided is a polypeptide having angiogenesis inhibiting activity. The polypeptide is derived from Placenta Growth Factor-1. Also provided are a derivative polypeptide of the polypeptide, a preparation method for polypeptide, and a pharmaceutical composition containing the polypeptide.
Abstract:
The present invention relates to method for establishing connection, module for establishing connection and terminal equipment. The method comprises: transmitting to a target equipment in an NFC manner, a request for acquiring connection information of the target equipment; receiving a response message containing the connection information returned by the target equipment in an NFC manner in response to the request; wherein the connection information is pre-acquired and stored by the target equipment; and establishing connection with the target equipment based on the connection information. After transmitting the request message, the initiating equipment may receive the connection information returned by the target equipment, and establish the connection with the target equipment based on the connection information, with no need of retransmitting a request after waiting for a certain period of time, and with no need of keeping the initiating equipment and the target equipment in physically close.
Abstract:
In one embodiment, a method for ionospheric delay compensation is provided. The method includes determining an ionospheric delay based on a signal having propagated from the navigation satellite to a location below the ionosphere. A scale factor can be applied to the ionospheric delay, wherein the scale factor corresponds to a ratio of an ionospheric delay in the vertical direction based on an altitude of the satellite navigation system receiver. Compensation can be applied based on the ionospheric delay.
Abstract:
Modular storage functionality is provided for a digital video recorder (DVR), which may be configured in such a way as to limit a user's access to the whole storage capacity, and wherein a user may choose to increase or decrease the amount of accessible storage capacity of the internal storage medium.
Abstract:
An impeller (10) of a cooling fan includes a hub (11) and a plurality of blades (12) radially and outwardly extending from the hub. Each of the blades includes a windward surface (127) and a leeward surface (128). A groove (124) is defined in each of the blades for guiding airflow from the windward surface to the leeward surface.
Abstract:
An impeller of a centrifugal fan includes a hub and a plurality of blades arranged on and around the hub. Each of the blades includes a root portion and a tip portion. The tip portion of each of the blades has a concave surface and a convex surface in rear and front sides thereof respectively. In a rotational direction of the impeller, the tip portion of a rear blade protrudes towards a front blade.