摘要:
Apparatus for altering translational velocity of molecules in a gas. A source of gas is in fluid communication with a supersonic nozzle. The nozzle is disposed on an arm at a selected distance from an axis for rotation about the axis. The nozzle has an exit portion substantially perpendicular to the arm. Motive apparatus rotates the arm so that the translational velocity of molecules with respect to a laboratory frame of reference is altered. In a preferred embodiment, gas flows from the source through the axis and the arm to exit from the nozzle.
摘要:
A system, and computer program product for preprovisioning using a mutated template. A subset of templates is selected from a set of templates that can be provisioned to a data processing system, a template in the set of templates including data to create a virtual machine on the data processing system. The mutated template is constructed using the subset of templates. A manifest is constructed such that a template in the subset of templates can be reconstructed from the mutated template using the manifest. Instead of the subset of templates, the mutated template is preprovisioned to the data processing system.
摘要:
Methods and arrangements for detecting and diagnosing system outages. A system outage is ascertained and aberrant user activities are categorized, as possible contributors to the system outage, based on system impact. User activities and system impact are learned, and user activities and system impact are compared against predetermined rules. A system outage alert is generated, and a user activity responsible for the system outage is displayed.
摘要:
Methods and arrangements for tracking changes in an information technology environment. Configuration dependencies are learned in a production environment, and a model of the production environment is built. Events on a target system in the production environment are subscribed to. Events are received and correlated with the model to generate an enhanced model, and the enhanced model is thereupon employed to predict configuration errors.
摘要:
A configuration model for an existing software solution, which is distributed over a plurality of existing machines, is discovered. The model includes a plurality of configuration items, which in turn include a plurality of independent attributes and a plurality of dependent attributes, with the plurality of dependent attributes being derivable from the plurality of independent attributes based on a plurality of constraints. The configuration model is stored in a repository, together with disk images, resource configuration details, and logical names of pertinent ones of the existing machines. Specifications of new values of the independent attributes are obtained, and new values of the dependent attributes are computed from the new values of the independent attributes, based on executing the constraints on the configuration model. The images are deployed onto a plurality of new machines for operation in accordance with the new values of the independent attributes and the new values of the dependent attributes, to obtain a re-deployed solution. The machines can be virtual machines or physical machines.
摘要:
According to one aspect of the present disclosure, a method and technique for preprovisioning virtual machines is disclosed. The method includes analyzing requests for a plurality of different virtual machine (VM) configurations where each VM configuration has a plurality of configuration attributes. The method also includes determining a request frequency corresponding to each requested VM configuration, determining a configuration of each provisioned VM, and responsive to determining the configuration of each provisioned VM, determining a configuration for a preprovisioned VM based on a request frequency of the different VM configurations and the configurations of the provisioned VMs. The method further includes creating the preprovisioned VM.
摘要:
A content item location is identified on a content page. A content item and a video associated with the content item to display in the content item location are also identified, wherein the video is defined by a video aspect ratio and is associated with a video element, and further wherein the video element is defined by a video element aspect ratio. Display data is generated for displaying the content item in the content item location, and video selection data is generated for displaying the video element in the content item location, wherein the video element aspect ratio is maintained when the video element is displayed. The display data and the video selection data are provided.
摘要:
A system and method of employing a facade to intercept change action commands to be carried out on a target IT endpoint resource. The intercepted commands are compared to information on a corresponding change ticket and any differences, along with the information such as target history, are used to compute a risk assessment of the risk in allowing the intercepted change action commands to be executed. Where the risk exceeds a predetermined threshold, the intercepted change action commands may be modified or eventually aborted.
摘要:
A method, system and article of manufacture are disclosed for registering and deregistering memory pages in a computer system. The method comprises the steps of hoisting register and deregister calls in a given routine where temporal locality is present to overlap computation and communication; using software pipelined registration and deregistration where spatial locality is observed; and using intra-procedural and inter-procedural analysis by a compiler of the computer system to deregister dynamically allocated buffers. The preferred embodiment of the invention is based on an optimizing compiler. The compiler is used to extract information such as addresses of buffers which are being reused repeatedly (temporal locality), preferably in a loop. The compiler may also find information about spatial locality, such as arrays whose indexes are used in a well-defined manner in a series of messages, for example, array pages being accessed in a pre-defined pattern in a loop.
摘要:
A method of measuring energy expenditure in a living subject comprises: (a) administering a specified dose of doubly-labeled water (2H218O) to a living subject; (b) obtaining samples at three or more times of body water from the living subject; (c) measuring 2H/1H, 17O/16O and 18O/16O ratios in each of the obtained samples using optical spectroscopy; and (d) determining (1) a combined value of flux of body water and exhaled carbon dioxide from a change in measured 18O/16O over time, (2) a value of flux of body water alone from a change in measured 2H/1H over time, and (3) a reference value of isotopic background fluctuation from a change in measured 17O/16O over time. Using 17O measurements to estimate background fluctuations of the 2H and 18O decreases the required isotope dosing of subjects or decreases uncertainty at current dosing levels.