摘要:
A test method for Internet-Protocol packet networks that verifies the proper functioning of a dynamic pinhole filtering implementation as well as quantifying network vulnerability statistically, as pinholes are opened and closed is described. Specific potential security vulnerabilities that may be addressed through testing include: 1) excessive delay in opening pinholes, resulting in an unintentional denial of service; 2) excessive delay in closing pinholes, creating a closing delay window of vulnerability; 3) measurement of the length of various windows of vulnerability; 4) setting a threshold on a window of vulnerability such that it triggers an alert when a predetermined value is exceeded; 5) determination of incorrectly allocated pinholes, resulting in a denial of service; 6) determining the opening of extraneous pinhole/IP address combinations through a firewall which increase the network vulnerability through unrecognized backdoors; and 7) determining the inability to correlate call state information with dynamically established rules in the firewall.
摘要:
A test method for Internet-Protocol packet networks that verifies the proper functioning of a dynamic pinhole filtering implementation as well as quantifying network vulnerability statistically, as pinholes are opened and closed is described. Specific potential security vulnerabilities that may be addressed through testing include: 1) excessive delay in opening pinholes, resulting in an unintentional denial of service; 2) excessive delay in closing pinholes, creating a closing delay window of vulnerability; 3) measurement of the length of various windows of vulnerability; 4) setting a threshold on a window of vulnerability such that it triggers an alert when a predetermined value is exceeded; 5) determination of incorrectly allocated pinholes, resulting in a denial of service; 6) determining the opening of extraneous pinhole/IP address combinations through a firewall which increase the network vulnerability through unrecognized backdoors; and 7) determining the inability to correlate call state information with dynamically established rules in the firewall.
摘要:
A test method for Internet-Protocol packet networks that verifies the proper functioning of a dynamic pinhole filtering implementation as well as quantifying network vulnerability statistically, as pinholes are opened and closed is described. Specific potential security vulnerabilities that may be addressed through testing include: 1) excessive delay in opening pinholes, resulting in an unintentional denial of service; 2) excessive delay in closing pinholes, creating a closing delay window of vulnerability; 3) measurement of the length of various windows of vulnerability; 4) setting a threshold on a window of vulnerability such that it triggers an alert when a predetermined value is exceeded; 5) determination of incorrectly allocated pinholes, resulting in a denial of service; 6) determining the opening of extraneous pinhole/IP address combinations through a firewall which increase the network vulnerability through unrecognized backdoors; and 7) determining the inability to correlate call state information with dynamically established rules in the firewall.
摘要:
A system and method is provided for determining the three dimensional location of an acoustic event using a system of five or more sound sensing elements. The sensing elements are positioned at substantially the same elevation and in spatially distributed locations with respect to the acoustic event. The sensing elements generate notification signals indicating occurrence of the acoustic event. A central processor receives the notification signals, associates the locations of each of the sensing elements with the time at which each sensing element sensed the sound, determines the speed of sound for the medium, and calculates a three dimensional location for the acoustic event using a linear error minimization algorithm. A system of six or more sensing elements enables the processor further to discriminate between near simultaneous acoustic events.
摘要:
The present application presents a method of assessing a predisposition to osteonecrosis in an individual based on the level of expression/activity of alpha-2-macroglubulin, a biomarker whose expression is positively correlated with osteonecrosis. Also provided herein are a diagnostic/prognostic system as well as a software product based on the determination of the level of expression/activity of alpha-2-macroglobulin. Screening methods for the determination of usefulness of an agent in the prevention and/or treatment of osteonecrosis are also provided.
摘要:
A method and system for providing electronic trading via yield curves. The method and system allow automatic execution of electronic trades with yield curve trading strategies using real, synthetic, black box, spread, and supply differential yield curve trading information.
摘要:
A simulation system for generating movie “scenes” that show interactions between simulated entities that populate a synthetic environment used to support training exercises and equipment. The simulation system includes a simulation engine that produces simulated entity state and event data; a visualization suite that allows an editor to display 2-D and 3-D views of the synthetic battlespace and to hear the battlefield and communications sounds associated with an interaction; a digital data logger that records simulation entity state and event data; an editing processor that provides the functionality required to identify, filter, specify, and organize the “scenes” that make up an interaction of interest; a “scene” generator that converts the entity state and event data for the set of scenes that make up an interaction into a digital movie file; and a repository for storage of complete movies and copying of movies to removable media.