663 results about "Then test" patented technology

A method for compensating the threshold voltage roll-off using transistors containing back-gates or body nodes is provided. The method includes designing a semiconductor system or chip having a plurality of transistors with a channel length of Lnom. For the present invention, it is assumed that the channel length of these transistors at the completion of chip manufacturing is Lmax. This enables one to set the off-current to the maximum value of I-offmax which is done by setting the threshold voltage value to Vtmin. The Vtmin for these transistors is obtained during processing by using the proper implant dose. After manufacturing, the transistors are then tested to determine the off-current thereof. Some transistors within the system or chip will have an off-current value that meets a current specification. For those transistor devices, no further compensation is required. For other transistors within the system or chip, the off-current is not within the predetermined specification. For those transistors, threshold voltage roll-off has occurred since they are transistors that have a channel length that is less than nominal. For such short channel transistors, the threshold voltage is low, even lower than Vtmin, and the off-current is high, even higher than I-offmax. Compensation of the short channel transistors is achieved in the present invention by biasing the back-gate or body node to give increased threshold voltage about equal to Vtmin and hence an off-current that meets the predetermined specification, which is about equal to I-offmax.

Methods for localizing a biopsy site are disclosed. The method includes taking a tissue sample from a biopsy site and positioning a detectable, bioabsorbable element at the biopsy site at the time that the tissue sample was taken. The tissue sample is then tested. The biopsy site is then relocated by finding the bioabsorbable element. The bioabsorbable element may be made of collagen, gelatin, cellulose, polylactic acid, and / or polyglycolic acid. The detectable bioabsorbable element may be relocated using ultrasound or mammography. The bioabsorbable element may also swell upon contact with body fluid.

A technique for data placement in a distributed system that takes into account fault tolerance. Data placement is performed in which data objects, and possibly replicas thereof, are assigned to nodes within the distributed system. The resulting placement is then tested to determine whether the system provides desired performance under various different fault scenarios. If not, the distributed system is altered such as by altering its capacity or its capacity allocations. Performing data placement, testing for fault-tolerance and altering capacity or capacity allocations are performed repetitively, thereby increasing the system's ability to provide the desired performance under the fault scenarios. Preferably, a system and placement are eventually determined that provide the desired performance under the given fault scenarios.

The invention relates to a recommender for recommending content to a user. The recommender comprises a recommender processor (111) which performs the steps of determining (201) a user preference profile and determining (205) if a content item interest does not correspond to the user preference profile. If the content item interest does not match the user preference profile, a temporary user preference profile is generated (207) in response to the content item. The recommender processor (111) then tests (209), through a user interface (107) the temporary user preference profile by recommending a plurality of other content items, and determining user preference values for them. If the preference value for the temporary user preference profile is high (211), the user preference profile is updated (213) accordingly. Otherwise, the temporary user preference profile is deleted (215). The update to the user preference profile may be temporary and have a higher update rate, thereby allowing the recommender to track temporary variations of user preferences. The recommender is particularly applicable to a Private Video Recorder (101).

Noise reduction in a one- or two-dimensional capacitive sensor array is achieved by rejecting and re-acquiring noisy signals. The sensor array is formed of crossed X and Y lines for drive and sense functions respectively, each of the X lines being driven in turn to acquire a full frame of data from the sensor array. A controller actuates the X lines in turn and, for each X line, charge is transferred to charge measurement capacitors connected to respective ones of the Y lines. The controller measures a signal value from a first one of the measurement capacitors, and then tests if that Y signal value has a magnitude lying within an acceptable range. If not, the measurement capacitors are all reset without their signal values being measured, and the controller re-drives the same X line to initiate another charge transfer into the measurement capacitors for that X line. It is then attempted once again to acquire Y signal values for that X line. Noisy signal values are thus rejected, and the sensor re-acquires substitute signal values. This is distinct from the approach of acquiring data and then reprocessing it to remove or suppress noisy data as in the prior art.

Signal paths within an interconnect structure linking input / output (I / O) ports of an integrated circuit (IC) tester and test points of an IC die on a wafer are tested for continuity, shorts and resistance by using the interconnect structure to access a similar arrangement of test points on a reference wafer. Conductors in the reference wafer interconnect groups of test points. The tester may then test the continuity of signal paths through the interconnect structure by sending test signals between pairs of its ports through those signal paths and the interconnecting conductors within the reference wafer. A parametric test unit within the tester can also determine impedances of the signal paths through the interconnect structure by comparing magnitudes of voltage drops across pairs of its I / O ports to magnitudes of currents it transmits between the I / O port pairs.

A high volume testing / formatting process is provided for Universal Serial Bus-based (USB-based) electronic data flash cards (USB devices) that meets the increasing demand for USB electronic data flash cards (USB devices). A test host is simultaneously coupled to the multiple USB devices (e.g., using a multi-port card reader or a probe fixture), a controller endpoint value is read from each of the USB devices and verified with a known good value, and then testing / formatting is performed on each of the USB devices by writing predetermined data into each USB device in a pipelined manner, then reading out and testing the predetermined data. In one embodiment, the test host implements a special USB driver that blocks standard USB registration procedures upon detecting the plurality of USB devices. Control and / or boot code data are written onto the flash memory device (i.e., instead of being provided on a controller ROM).

Methods for re-configuring a cluster computer system of multiple or more nodes when the cluster experiences communications failure. First and second nodes of the cluster have respective channel controllers. A SCSI channel and the controllers communicatively connect the multiple nodes. When a node becomes aware of a possible communications failure, the node attempts to determine the authenticity the failure and responds according to the determined authenticity. According to one method, a first node detects heartbeat node-to-node communications failure on the channel and then tests a physical drive on the channel. If the testing is successful, the node kills the other node. If the testing is unsuccessful, the first node commits suicide. In one embodiment, the coupling includes multiple channels communicatively coupling the first and second nodes and the first node selecting one of the channels for node-to-node communications. In this environment, choosing a physical drive involves testing node-to-node communications on another of the channels if no physical drive is online on the channel (and terminating the re-configuring method). If a drive is available, the first node uses the first physical drive online on the channel for testing. In another method, the second node initially detects communications failure and communicates that by attempting to negotiate wih the first node for a new configuration of the computer system. The first node tests a physical drive in response and negotiates with the second node if the testing was successful. If the testing was unsuccessful, the first node commits suicide.

The invention supplies a method and system used to test electrolyte type storage battery performance. The method includes the following steps: connecting the storage battery to the test load with different resistance values at different time quantum; controlling the test load unit and the connection state; utilizing the discharge characteristic to gain internal resistance detecting value; correcting the detecting value and comparing it with given initial state to gain current residual capacity state value according to the relation curve between the different residual capacity state values and internal resistance; then testing the storage battery performance. Thus the invention can be used to improve the test precision, realize remote testing, and further satisfy the routine maintenance demand for valve controlled sealed type lead-acid battery.

The invention relates to a rock true triaxial test system with a CT (Computed Tomography) real-time scanning system and a method. The rock true triaxial test system with the CT real-time scanning system comprises a triaxial pressure box, a triaxial host frame, a loading device and a CT scanning device, wherein the triaxial host frame comprises a bottom plate, a top plate and a stand column supported on the bottom plate; the loading device comprises a reversed force device, a jack and a measuring device; the pressure box, the stand column, and the reversed force device located in a scanning area of the CT scanning device are respectively made of carbon fiber materials. The rock true triaxial test system adopts the horizontal loading device, a carbon fiber force transfer plate and the stand column with special designs for a CT scanning area; solves the difficult problem that an X ray cannot penetrate through a traditional triaxial tester; overcomes the defect that in the traditional test, a rock sample needs to be unloaded and taken down from a true triaxial test bed and is then tested through CT scanning; realizes real-time coordination of rock true triaxial and CT scanning test; has significance on researching real-time extension and evolution law of microfissuring and microvoid in rocks under the triaxial stress state.

The invention relates to a method for testing flow conductivity of self-supported cracks in riverfrac treatment. The method comprises the steps of: manufacturing a core test piece which satisfy closed state of the crack wall surface after pressure relief return of riverfrac treatment, drilling a phi 50*100 mm cylindrical test piece, enabling the cylindrical test piece to be orthogonal with a pre-formed scratch, splitting the pre-formed scratch to manufacture a tensile fracture type crack wall surface, dislocating the crack wall surface, smoothly grinding the end surface of the core test pieceto obtain a non-proppant non-engaged crack wall surface combination; then testing the flow conductivity of the crack, putting the manufactured core test piece into a core clamping system, simulating formation stress and temperature, setting and sending a control instruction, enabling each system to work and feed back signals, and finally, collecting the test results and calculating the flow conductivity of self-supported crack in the riverfrac treatment. The method in the invention can really reflect the tensile fracture and shear slip process of the riverfrac treatment, and reduce the process to a pressure and temperature environment under the ground to test the flow conductivity; and the test method is achievable.

A system for performance testing of scalability implementations and testing of stability in blockchain database implementations. The testing system comprises a cluster of private blockchain nodes instantiated on a network and a control console that allows the user to set the number of nodes in the network and the number of clients for testing of a particular blockchain implementation. Performance metrics are established and tested. The test system allows for staged testing using generated databases, wallets, and accounts starting with simple 5-node networks, expanding to larger networks, then testing with decreased block validation times, continuing to testing using alternative, faster trust schemes, then testing implementation on divided blockchains, and finally testing on shared blockchains.

A bumped semiconductor component includes bumped contacts, a semiconductor die having die contacts, and a redistribution circuit having conductors for establishing electrical communication between the die contacts and the bumped contacts. The redistribution circuit also includes test contacts in electrical communication with the die contacts and with the bumped contacts. The test contacts allow the die to be tested without electrical engagement of the bumped contacts. The bumped semiconductor component can be contained on a wafer, or can be a singulated component such as a flip chip package. A test system includes the bumped semiconductor component, and an interconnect having contacts configured to electrically engage the test contacts without interference from the bumped contacts. If the test contacts are aligned with the die contacts, the same interconnect can be used to test the bare die as well as the bumped component. A test method includes the steps of: providing the bumped component with test contacts; providing the interconnect with interconnect contacts configured to engage the test contacts without interference from the bumped contacts; and then testing the component by applying test signals through the interconnect contacts to the test contacts.

An apparatus and method for coding unit-synchronous adaptive loop filtering (ALF) for an image area that is partitioned into a plurality of coding units are disclosed. In a conventional approach, the slice-level bitstream cannot be generated until all coding units in a slice are processed since the ALF filter coefficients are determined based on reconstructed pixels and original pixels of a slice. According to one embodiment, the method processes the coding units in the image area one after the other to generate a CU-level bitstream. The method also reconstructs the coding units to from reconstructed coding units which are subject to adaptive loop filtering. Upon the availability of reconstructed coding units for the image area, the method derives filter coefficients for the ALF filter based on the reconstructed pixels and original pixels in the image area. The designed ALF filter is then tested for each coding unit to determine whether the ALF filter should be applied to the coding unit and the decision is indicated by an ALF flag. After all ALF flags are determined, an image area header is created by incorporating the filter coefficients and ALF flags in the header. The header and the CU-level data previously created are combined into an image area level bitstream. An apparatus to perform the steps recited in the method is also disclosed.

A computer software controlled method of fitting a golf shaft to a golfer having steps of electronically determining the selection of a shaft by electronically testing, recording and storing a golfers reliable club head swing speeds values and face angle / degrees at impact. Testing to determine flex choice based on face angle / degrees at impact is completed first and then testing to determine stiffness based on head speed is completed second.

A high volume testing / formatting process is provided for Universal Serial Bus-based (USB-based) electronic data flash cards (USB devices) that meets the increasing demand for USB electronic data flash cards (USB devices). A test host is simultaneously coupled to the multiple USB devices (e.g., using a multi-port card reader or a probe fixture), a controller endpoint value is read from each of the USB devices and verified with a known good value, and then testing / formatting is performed on each of the USB devices by writing predetermined data into each USB device in a pipelined manner, then reading out and testing the predetermined data. In one embodiment, the test host implements a special USB driver that blocks standard USB registration procedures upon detecting the plurality of USB devices. Control and / or boot code data are written onto the flash memory device (i.e., instead of being provided on a controller ROM).

This invention belongs to measurement technique field and fixing technique field which is suitable for concrete architecture water leakage test method, which comprises the following steps: sending carbon dioxide gas from the leakage part on the architecture; then testing the gas outside the architecture and judging the leakage source according to the gas sensor situation; injecting the liquid emulsion into the leakage path crack or honeycomb hollow part to seal the leakage, which is characterized by adopting the infrared sense for analysis technique testing to judge the leakage source; adopting pressure injection to seal the leakage separately.

The invention discloses a cable fault detection and aging analysis method. According to the insulation resistance oscillation theory of the frequency domain, the cable fault detection and aging analysis method is characterized in that a fault location model is established by analyzing the oscillation characteristics of frequency domain impedance on the basis of oscillation wave spectrum analysis of the frequency domain impedance acquired by a non-destructive test system or a destructive test system, and then test oscillation impedance spectrum defect is compared with an internal simulation curve, so that long-distance accurate fault location can be realized, and the fault types can be also effectively distinguished. Compared with the prior art, the method not only is capable of realizing accurate multipoint positioning of faults, but also is capable of carrying out fault type recognition and insulation aging state analysis; in the whole detection and analysis processes, artificial experience is hardly depended; the method is suitable for a cable with the length of 1m-1,000km, and is especially suitable for a cable with the length of more than hundreds of kilometers.

The invention provides an ultrasonic guided wave combined type nondestructive testing method. The method tests an object to be tested by allowing ultrasonic guided waves to transmit in the object to be tested and then testing reflection echo, and is characterized in that: the method for generating the ultrasonic guided wave by excitation adopts an electromagnetic excitation mode; and the mode of receiving the reflection echo is using a piezoelectric element for testing. The invention also claims the protection of the testing device corresponding to the ultrasonic guided wave combined type nondestructive testing method. The device of the invention can realize the defect test at greater distance and with higher sensitivity under a condition that the prior pipeline has a damping effect on theultrasonic guided wave. The technique can be used for nondestructive testing of components such as common pipes, steel rails, special pipes / rods, wire ropes, tank bottoms of oil tanks and the like. The method of the invention creatively combines two big technical advantages, so that the method has more obvious and better technique effect, and predicable huge economic values and social values.

A method for testing object-oriented system software having system classes includes examining an application software program including calls to system classes with both a static analysis tool and a dynamic analysis tool. Then both a static use count and a dynamic use count of the system classes are determined. A proportional weighing attribute is assigned to each system class based on its corresponding static use count and dynamic use count. The system classes are then tested in an order determined by the corresponding proportional weighing attributes.

The invention describes a test bed, a method and a computer program product for testing an application installed on a wireless communication device. The wireless communication device communicates with a server over a network through the test bed. Further, the test bed is connected to the server and receives various testing parameters from a user. Furthermore, the test bed establishes a wireless connection between the test bed and the wireless communication device. Thereafter, the test bed emulates various network conditions, based on the testing parameters, and subsequently communicates the emulated network conditions to the wireless communication device. The application installed on the wireless communication device experiences the emulated network conditions. The user then tests the application in the emulated network conditions.

This invention discloses a kind of cell phone volume automatic adjustment method. First, it presets the volume adjustment constant, then tests the environment noise volume by cell phone, and gets the environment noise db. At last, it adds the acquired environment noise db and the volume adjustment constant as the current cell phone volume, and sets it as the cell phone ring volume. The invention also discloses a kind of cell phone volume automatic adjustment apparatus, which includes ring-inputting module, ring-controlling module, environment noise detecting module and volume setting module. Among which, the environment noise detecting module can input the detected environment noise db number to the volume setting module.

An apparatus and method for improving the performance of an Internet website includes a performance processor that identifies a plurality of critical performance factors that facilitate improved website performance and then tests in real time, by utilization of an application programming interface, the influence of individual ones of said plurality of performance factors by application of a fractional factorial design.

The invention discloses a black organic-silicon heat-resisting paint comprising 45-65 percent of organic silicon resin, 10-25 percent of high-temperature resisting pigment, 3-8 percent of talc powder, 5 percent of weather-resistance filling materials, 5-15 percent of mica powder, 8-15 percent of mixed glass powder, 5-10 percent of Kaolin, 2-5 percent of cosolvent and 10-20 percent of solvent. A preparation method of the black organic-silicon heat-resisting paint comprises the steps of firstly, weighing the above materials; secondly, putting the high-temperature resisting pigment, the talc powder, the mica powder, the mixed glass powder and the kaolin into a mixing tank, putting part of the organic silicon resin, cosolvent and solvent firstly and then stirring for fully mixing; thirdly, pressing the mixed materials after stirring into a sand mill for full sanding; and fourthly, according to the requirements of glossiness, putting the mixed materials after sanding into a paint formulation kettle, then adding the residual organic silicon resin, cosolvent and solvent in the mixed materials, stirring, mixing, then testing, filtering and packaging.

The invention relates to a detection method for automatically identifying and detecting weld defects. Weld defects are detected based on a deep learning algorithm of a Faster R-CNN network. The methodcomprises the following steps of firstly, preprocessing collected weld defect images, randomely extracting 20% of the weld defect images for testing, manually storing residual images and adding labels for training; inputting a training sample into a Faster R-CNN neural network for training, then testing the obtained model, and finally achieving a detection effect. The Faster R-CNN network is adopted to perform feature extraction on the weld defect images, so that low efficiency and uncertainty of traditional manual feature extraction are avoided, and meanwhile, the detection process also hasrelatively high robustness. Deep learning technology and image processing technology are combined. A deep learning method is used for detecting the weld defects. When learning rate is initially set tobe 0.001, model classification accuracy reaches 99.3%, detection precision is obviously improved and detection speed is increased.