Abstract: A method for testing wireless communications devices includes controlling a wireless environment simulator for creating a simulated wireless environment around a device under test (DUT). The DUT includes a wireless communications system. The method further includes stimulating the DUT as specified by a test case and recording, using a test monitor, one or more wireless signals transmitted between the DUT and the wireless environment simulator in response to stimulating the DUT. The method further includes generating a test result for the DUT based on comparing performance data from the wireless signals with expected performance specifications for the test case.

Abstract: A method that occurs at a calibration system includes generating a first digital record based on a calibration of the calibration system using a calibration source; providing a copy of the first digital record to a first device under test (DUT); and providing a calibration test signal associated with a calibration of the first DUT, wherein the first DUT uses the first digital record in generating a second digital record based on the calibration of the first DUT.

Abstract: Methods, systems, and computer readable media for testing software defined networks (SDNs). An example system includes a traffic generator configured for generating SDN test traffic for the SDN; a network impairment module configured for applying a plurality of impairment profiles to the SDN test traffic; and a network testing monitor configured for monitoring the SDN test traffic on the SDN. The system includes an SDN performance modeler configured for mapping, for each impairment profile, the impairment profile to SDN performance metric values based on monitoring the SDN test traffic by the network testing monitor in response to applying the impairment profile by the network impairment module.

Abstract: Methods, systems, and computer readable media for monitoring, adjusting, and utilizing latency associated with accessing distributed computing resources are disclosed. One method includes measuring a first latency associated with accessing a first computing resource located at a first site. The method further includes the measuring a second latency associated with accessing a second computing resource located at a second site different from the first site. The method further includes selectively impairing transmission of packets to or processing of packets by at least one of the first and second computing resources in accordance with a performance, network security, or diagnostic goal.

Abstract: A method that occurs at a calibration system includes generating a first digital record based on a calibration of the calibration system using a calibration source; providing a copy of the first digital record to a first device under test (DUT); and providing a calibration test signal associated with a calibration of the first DUT, wherein the first DUT uses the first digital record in generating a second digital record based on the calibration of the first DUT.

Abstract: Determining magnitude of a field variable of an energy wave through domain of interest, including steps of: defining plurality of master-particles spaced within domain, master-particles being representative of field variables of energy wave at location of respective master-particle, and defining supporting domain ?m for each master-particle; computing field variables including position, magnitude and direction of propagation of each master-particle at predetermined time; defining plurality of virtual-particles within domain representative of magnitude of field variable of wave at location of respective virtual-particle; calculating magnitude uv of field variable of each virtual-particle at time of interest by applying formula: u v = ? m = 1 N ? ? u m ? f ? ( q ? ? 1 ) × g ? ( q ? ? 2 ) Where ? ? v ? ? ? m where N is total number of master-particles, um is magnitude of respective master-particle, f(q1) is an envelope function relating magnitude of virtua

Abstract: A method for testing wireless communications devices includes controlling a wireless environment simulator for creating a simulated wireless environment around a device under test (DUT). The DUT includes a wireless communications system. The method further includes stimulating the DUT as specified by a test case and recording, using a test monitor, one or more wireless signals transmitted between the DUT and the wireless environment simulator in response to stimulating the DUT. The method further includes generating a test result for the DUT based on comparing performance data from the wireless signals with expected performance specifications for the test case.

Abstract: A method for network tapping and packet brokering in wireless networks includes tapping a signal in a wireless network and determining whether the signal is a valid signal according to a wireless network protocol. In response to determining that the signal is a valid signal according to the wireless network protocol, the signal is demodulated into a sequence of bits arranged according to the wireless network protocol. In response to determining that the signal is not a valid signal according to the wireless network protocol, an indication that the signal is not a valid signal according to the wireless network protocol is generated. A packet in a format compatible with a network tapping and packet brokering system is generated. At least some of the bits or the indication is inserted in the packet. The packet is transmitted to the network tapping and packet brokering system.

Abstract: A method including the steps of: defining an original parent polygon representative domain of interest, an origin corresponding to a wavesource position within the parent, a wavesource wavefront geometry, and a maximum wavefront extent; determining one or more valid parent polygon sides; defining cutting lines from the vertices of each valid parent side to the extent; reflecting the parent about the respective valid side defining a child polygon; discarding portions of each child polygon lying beyond a cutting line from the respective parent side; redefining each child as a parent, and repeating the second to fifth steps for each parent filling the area within the extent; projecting onto the polygons within the extent, a wavefront having the wavefront geometry spaced from the origin by a specified distance; and reflecting the child polygons along the respective sides of their respective parents projecting the child polygons and wavefront onto the original parent.

Abstract: Systems and methods including one or more processing modules and one or more non-transitory storage modules storing computing instructions configured to run on the one or more processing modules and perform acts of coordinating displaying a set of items of an online retailer on a user interface of a customer electronic device of a customer; receiving, from the customer electronic device, a first selection by the customer of a first item of the set of items to place the first item in an electronic shopping cart of the customer for a customer order; determining a first shipping cost to the online retailer for a first delivery of the first item to the customer by a first date from a first shipping location; determining a second shipping cost to the online retailer for the first delivery of the first item to the customer by a second date from the first shipping location, the second date occurring after the first date and the second shipping cost being less than the first shipping cost; determining a first order d

Abstract: Methods, systems, and computer readable media for monitoring and/or testing network communications are disclosed. A method for monitoring network communications includes receiving packets from a network connected device, determining features associated with either the network connected device or a communications network to which the network connected device is connected by actively or passively monitoring or testing the packets, and automatically switching between passively monitoring or testing the packets and actively monitoring or testing the packets in response to receiving a packet carrying instructions.

Abstract: Systems, methods, and software can be used to generate predictive text on an electronic device. In some aspects, one computer-implemented method includes receiving, at an input method editor (IME) operating on an electronic device, a text prediction indicator for an editable field outputted by an application; determining, based on the text prediction indicator, whether a text input from the editable field is allowed to be stored; in response to determining that the text input from the editable field is allowed to be stored, storing the text input; determining a predictive text; and outputting the predictive text on the electronic device.

Abstract: Methods, systems, and computer readable media for monitoring, adjusting, and utilizing latency associated with accessing distributed computing resources are disclosed. One method includes measuring a first latency associated with accessing a first computing resource located at a first site. The method further includes the measuring a second latency associated with accessing a second computing resource located at a second site different from the first site. The method further includes selectively impairing transmission of packets to or processing of packets by at least one of the first and second computing resources in accordance with a performance, network security, or diagnostic goal.

Abstract: A drain cleaning apparatus, includes a handle and a clog-catching member detachably connected the handle. Airplane-like wings project radially from the clog-catching member. The wings provide an angled projection that catches and holds a clump of debris in a drain pipe for unclogging the drain. Clog-catching members or smooth extension members can be connected end to end for different lengths. Different end tools can be removably connected to a clog-catching member or to a smooth extension member to provide multifunctionality. A drain cleaning harpoon that is an integral unit or one that can be assembled and disassembled is also provided. The harpoon can be fitted on one end with a plurality of J hooks, fish hooks, arrowheads or retractable barbs for catching and holding a mass of debris in a drain pipe.

Abstract: A method for network tapping and packet brokering in wireless networks includes tapping a signal in a wireless network and determining whether the signal is a valid signal according to a wireless network protocol. In response to determining that the signal is a valid signal according to the wireless network protocol, the signal is demodulated into a sequence of bits arranged according to the wireless network protocol. In response to determining that the signal is not a valid signal according to the wireless network protocol, an indication that the signal is not a valid signal according to the wireless network protocol is generated. A packet in a format compatible with a network tapping and packet brokering system is generated. At least some of the bits or the indication is inserted in the packet. The packet is transmitted to the network tapping and packet brokering system.

Abstract: The ultrasonic inspectability of a supplied part out of which a final component is to be machined is determined by following a set of inspection rules for ultrasonic inspection of the supplied part. The rules determine which parts of the polygon cannot be inspected by a scan at a given ultrasound beam angle (typical beam angles are 0°, +20° and ?20° relative to the perpendicular direction to the edge) along a given edge of the polygon.

Abstract: A system and method for controlling the acoustic signature of a turbomachine having a plurality of valves wherein an operating load is identified and an arc of admission across a plurality of nozzles is associated therewith. A valve sequencing scheme is selected and implemented to activate the arc of admission for a particular operating load so as to minimize valve noise by adjusting valves simultaneously rather than consecutively.

Abstract: The subject matter described herein relates to method, systems, and computer readable media for detecting physical link intrusions. A method for detecting physical link intrusions includes monitoring a link delay signature associated with a physical link based on one-way link delay measurements obtained using at least one network tap. The method also includes determining whether a change in the link delay signature has met or exceeded a threshold value. The method further includes in response to determining that the change in the link delay signature has met or exceeded the threshold value, determining that a physical link intrusion has occurred.

Abstract: Methods, systems, and computer readable media for testing wireless devices is disclosed. In some examples, a system for testing wireless devices in wireless environments comprises a test server and a wireless device tester implemented on the test server. The test server includes at least one processor and memory storing, for each wireless device of different types of wireless devices, a wireless emulation waveform received from the wireless device during operation of the wireless device. The wireless device tester is configured for receiving emulation requests specifying wireless devices and wireless environments for testing. The wireless device tester is configured for transmitting, for each request, a responsive wireless emulation waveform to a wireless device emulator physically located in the specified wireless environment and determining a performance metric for the wireless device within the specified wireless environment.

Abstract: A wireless access point or other transmitter can be configured to inject a supplemental signal into a data modulated carrier signal. In some examples, a transmitter system includes an antenna, a primary modulator, and a supplemental modulator. The primary modulator receives a baseband data signal and a carrier signal and outputting to the antenna a data modulated carrier signal according to a communications protocol. The supplemental modulator injects a supplemental signal into the data modulated carrier signal by distorting the data modulated carrier signal within an error bound of the communications protocol. A corresponding receiving system includes an antenna and a supplemental signal detector for detecting the supplemental signal by detecting the distortion within the data modulated carrier signal.