摘要:
A method and system for determining a path between nodes in a network are disclosed. In accordance with an embodiment of the present disclosure, a system for determining a path between nodes in a network comprises a destination node and a link aggregation group (LAG) that includes a first link and a second link. The system further comprises a source node communicatively coupled to the destination node by the LAG where the source node, the LAG and the destination node form a path. The source node is operable to determine a link availability status for each of the first and second links using a layer-2 protection scheme. The source node is further operable to monitor the path for connectivity based on the link availability status using a layer-3 protection scheme.
摘要:
A method, system, and computer-readable code with which a program component can be dynamically selected for downloading, based on current values of one or more changeable attributes. Multiple versions of a program component are available, and a specific version is dynamically selected for downloading based on current attribute values. Attribute values may represent a user's authorization privileges, current working environment, preferences, network connection type, status, etc. In this manner, software can be optimized for particular users or groups of users, or particular environments of hardware and/or software, while still providing applications that are usable by a wide range of users in a wide range of operating environments. In another aspect, this dynamic selection based on attributes can be used to select a version of a component for remote execution, instead of for downloading. The dynamic selection process may occur on a server in the network, or on the client's local machine. In the latter case, selected component versions may be loaded from local storage instead of downloading them from a server. Administrative policy information based on the user's identity and/or group membership may be used to generate the current attribute values, reflecting one or more of: a user's current working environment, authorization privileges, preferences, network connection type, and status.
摘要:
A distributed security information and event management system comprises a centralized portion and a plurality of remote portions, with the remote portions being implemented in respective applications within information technology infrastructure. Each of the remote portions comprises one or more remote components inserted into the corresponding application. At least a subset of the remote components of the remote portion are configured for interaction with one or more corresponding centralized components of the centralized portion of the system. The remote components may each be configured to process one or more specified eXtensible Access Control Markup Language (XACML) Obligations or other constructs.
摘要:
The system of subterranean wells includes a subsurface flow line 20 having at least a portion within or underlining one or more subterranean formations 12. One or more drainage wells 26, 28, 30, 32, and 34 each extend from the surface and intercept at least one of the subterranean formations at a respective interception location. A lower portion of each drainage well is in fluid communication with the subsurface flow line. A recovery well 42 extends from the surface and is also in fluid communication with the subsurface flow line, so that fluids entering the drainage well flow into the subsurface flow line and then into the recovery well.
摘要:
A family of castable and weldable nickel-base alloys that exhibit a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. A first alloy consists essentially of, by weight, 1 8% to 20% cobalt, 22.2% to 22.8% chromium, 1.8% to 2.2% tungsten, greater than 1.5% to 2.3% aluminum, 1.6% to 2.4% titanium, where the sum of aluminum and titanium is 2.8% to 4.4%, 0.7% to 0.9% columbium, 0.9% to 1.9% tantalum, 0.003% to 0.009% boron, 0.002% to 0.02% zirconium, 0.05% to 0.10% carbon, with the balance essentially nickel and incidental impurities. A second alloy consists essentially of, by weight, 5% to 8% cobalt, 22.2% to 22.8% chromium, 1.8% to 2.2% tungsten, 1.2% to 2.3% aluminum, 1.6% to 2.4% titanium, where the sum of aluminum and titanium is 2.8% to 4.4%, 0.7% to 0.9% columbium, 0.9% to 1.9% tantalum, 0.003% to 0.009% boron, 0.002% to 0.02% zirconium, 0.05% to 0.10% carbon, with the balance essentially nickel and incidental impurities.
摘要:
A method and system for determining a path between nodes in a network are disclosed. In accordance with an embodiment of the present disclosure, a system for determining a path between nodes in a network comprises a destination node and a link aggregation group (LAG) that includes a first link and a second link. The system further comprises a source node communicatively coupled to the destination node by the LAG where the source node, the LAG and the destination node form a path. The source node is operable to determine a link availability status for each of the first and second links using a layer-2 protection scheme. The source node is further operable to monitor the path for connectivity based on the link availability status using a layer-3 protection scheme.
摘要:
A high pressure metering pump employs a flexible diaphragm extending radially from a piston as the moving pump element. The diaphragm is secured by an annular anvil at its periphery to form a high pressure seal, and the center of the diaphragm is driven reciprocally by a mechanically driven piston. A support assembly for the diaphragm includes a moveable metal ring concentric about the piston and an elastic, resilient ring concentric about the piston and interposed between the metal ring and the diaphragm. The elastic resilient ring is formed of a material such as neoprene, Viton, or the like to mediate and distribute the force between the diaphragm and the metal ring. This assembly allows the diaphragm membrane to support the high pressures that are prevalent in HPLC.
摘要:
Castable and weldable nickel-base alloys that exhibit a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. The alloy contains, by weight, about 1 0% to about 25% cobalt, about 20% to about 28% chromium, about 1% to about 3% tungsten, about 1.6% to about 3.8% aluminum, about 0.4% to about 1.5% titanium, where the sum of aluminum and titanium is about 1.8% to about 5.0%, about 0.5% to about 1.5% columbium, 0.5% to about 1.5% tantalum, about 0.001% to about 0.025% boron, about 0.05% maximum zirconium, about 0.02% to about 0.15% carbon, with the balance essentially nickel and incidental impurities. The alloy may more preferably contain about 2.8% to about 3.8% aluminum where the sum of aluminum and titanium is about 3.0% to about 5.0%, or about 1.6% to about 2.8% aluminum, where the sum of aluminum and titanium is about 1.8% to about 4.3%.
摘要:
An environmentally-friendly cleaning composition for oil cleaning comprising (a) a blend of dibasic esters, (b) one or more surfactants (c) and, optionally, (d) water or a solvent. The dibasic esters are be derived from a blend of adipic, glutaric, and succinic diacids, and, in one particular embodiment, the blend comprises dialkyl adipate, dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C1-C12 hydrocarbon group. The one or more surfactants are typically chosen from alcohol alkoxylate, an alkyl phenol ethoxylate, a terpene, a terpene alkoxylate or any derivates thereof. Optionally, additional components or additives including delaminates such as pinene and d-limonene, fragrances, whiteners, stabilizers, thickeners and the like can be added to the composition.