Abstract: There are provided methods and devices for sensing hydrogen gas. For example, there is provided a method that includes drawing a sample into a channel. The method includes passing the sample over a collection plate to remove an extraneous gas in the sample, thus yielding a purified sample. The method further includes passing the purified sample on a sensing plate and measuring a concentration of hydrogen in the purified sample using the sensing plate. The measuring can include heating the sensing plate and correlating a change in resistance of the sensing plate with a specified concentration of hydrogen. Furthermore, the method can include regenerating the collection plate following the measuring.

Abstract: A gas analysis system and method filter different wavelengths of incident light using a variable light filter at different locations along a length of the variable light filter to form filtered light. The variable light filter is configured to be disposed between a light source generating plural different wavelengths of the incident light and a gas sample. Intensities of wavelengths of the filtered light are determined after the incident light generated by the light source passes through the variable light filter and the gas sample. The gas sample may be identified from among different potential gasses based on the intensity of the one or more wavelengths of the filtered light that is determined by the light detector.

Abstract: An apparatus for extracting organic compounds from plant materials using subcritical or supercritical carbon dioxide is described. The apparatus has a sealable pressure chamber into which carbon dioxide dry ice and the plant materials are inserted, the pressure chamber, once sealed, self-pressurizing as the container and contents are warmed to a chosen temperature, converting the solid CO2 to liquid, or to a super-critical fluid as the temperature and pressure are raised above the Critical Point. The chamber can be rotated when subcritical CO2 liquid is employed to improve mixing between the liquid and the plant material.

Abstract: An apparatus for extracting organic compounds from plant materials using subcritical or supercritical carbon dioxide is described. The apparatus has a sealable pressure chamber into which carbon dioxide dry ice and the plant materials are inserted, the pressure chamber, once sealed, self-pressurizing as the container and contents are warmed to a chosen temperature, converting the solid CO2 to liquid, or to a super-critical fluid as the temperature and pressure are raised above the Critical Point. The chamber can be rotated when subcritical CO2 liquid is employed to improve mixing between the liquid and the plant material.

Abstract: Provided is a trace gas measurement apparatus for electrical equipment that includes at least one sample cell configured to collect an oil sample from the electrical equipment. The sample cell having an oil receiving portion for receiving an oil sample, at least one perforated or porous sheet within a head space thereof for receiving the oil sample from the oil receiving portion, housing the oil sample thereon, and separating a new oil sample received from an existing oil sample within the at least one sample cell. The trace gas measurement apparatus also includes an oil pump for selectively pumping oil into and out of the sample cell, and a control module controlling operation of the oil pump, to adjust an oil level and air pressure within the sample cell, for performing an extraction process of trace gases within the oil sample.

Abstract: A system is presented. The system includes an absorption cell filled-with a gas-mixture, a mirror-cum-window comprising a first portion that acts as a first mirror and a second portion that acts as a first window, a second mirror, a plurality of radiation sources to generate a plurality of light beams directed into the absorption cell through the first window followed by reflection of the plurality of light beams between the first mirror and the second mirror to irradiate the gas-mixture resulting in generation of a plurality of transmitted light beams passing out of the absorption cell through the second window, a detector that detects at least one characteristic of the plurality of transmitted light beams resulting in generation of one or more response signals, and a processing subsystem that analyzes the gas-mixture at least based on the one or more response signals.

Abstract: Provided, a trace gas measurement apparatus for electrical equipment that includes at least one sample cell configured to collect an oil sample from the electrical equipment. The sample cell includes (i) an oil receiving portion for receiving an oil sample, and (ii) a head space in an upper section thereof receiving ambient air therein, an oil pump for selectively pumping oil into and out of the sample cell, and a hydrogen gas sensor within an exhaust path of the sample cell. The hydrogen gas sensor receives the air exhausted from the sample cell and measures hydrogen gas present in the exhausted air.

Abstract: Provided is a trace gas measurement apparatus for electrical equipment that includes a sample cell corresponding and connectable to the electrical equipment and comprising a head space and configured to collect an oil sample from the electrical equipment. The trace gas measurement apparatus also includes an analysis module in communication with the sample cell, having an analysis chamber that includes a first measuring device at a first side thereof and a second measuring device disposed at a second side thereof at an axis that is substantially perpendicular to a membrane surface of the first measuring device, and configured to measure and analyze trace gases from an oil sample received from the head space within the sample cell.

Abstract: Secure storage and retrieval of data is provided with multiple data classes and data identifiers. Data values of a client are stored by receiving one or more authentication sets, at least one data value, an associated data class of the data value and a pseudo-random client value; calculating a data seed value based on the pseudo-random client value, a pseudo-random server value and the associated data class of the data value; generating a random data index value; generating a database index value based on the data seed value and the random data index value; storing the database index value; and providing the random data index value to the client. The client can be authenticated at the time of storage based on the one or more authentication sets. The authentication of the client and the storage of the data can be atomic such that only authenticated clients store the one or more data values. Techniques are also provided for the retrieval of stored data.

Abstract: Secret values used in a multi-server authentication scheme are updated. Information is authenticated in a system comprising a plurality of processing devices each adaptable for communication with one or more other devices. The information is authenticated by generating at least first and second shares of a first password associated with a first device (such as a client device); storing the first and second shares in respective second and third devices of the plurality of devices; updating the first and second shares using a personalized proactivization value; assigning a version number to the updated first and second shares; and upon submission of additional information associated with the first device to at least one of the second and third devices, the second and third devices utilizing the respective updated first and second shares for a given version number to collectively determine a correspondence of the additional information with the first password.

Abstract: Methods and apparatus are provided for cryptographically linking data identifiers and authentication identifiers without storing the association between the authentication and data secrets in the database of the server. A data secret of a client is provided to a server for storage with an authentication identifier (AuthId) and a pseudo-random client value. The server provides the client with a sequence number of the stored data secret that is associated with a data identifier (DataId) identifying the data secret obtained using a Key Derivation Function and a storage seed. The client registers with the server to obtain the authentication identifier (AuthId). Techniques are also provided for retrieving and updating the data secret.

Abstract: A first machine (e.g., server VM) authenticates an untrusted second machine (e.g., new client VM) as a condition to performing or allowing a protected operation. Authentication information is written to a library using one mechanism, and then read from the library using another mechanism. One of the mechanisms is an untrusted mechanism employing the untrusted second machine, while the other is a trusted mechanism performed by the first machine either alone or in combination with a trusted management component that has privileged access to the library. If a written and read value match, it can be inferred that the second machine is authentic, because the trusted management component has accessed an existing library that is also separately accessed by the second machine.

Abstract: Secret values used in a multi-server authentication scheme are updated. Information is authenticated in a system comprising a plurality of processing devices each adaptable for communication with one or more other devices. The information is authenticated by generating at least first and second shares of a first password associated with a first device (such as a client device); storing the first and second shares in respective second and third devices (such as authentication server devices); updating the first and second shares using a secret value T; assigning a version number to the updated first and second shares; and upon submission of additional information associated with the first device to at least one of the second and third devices, the second and third devices utilizing the respective updated first and second shares for a given version number to collectively determine a correspondence of the additional information with the first password.

Abstract: Methods and apparatuses for processing eggs based upon a characteristic such as gender are provided. Sample material is extracted from each of a plurality of live eggs. The extracted sample material is deposited on a liquid-immobilizing assay template and then assayed to identify eggs having the characteristic. The eggs identified as having the characteristic are processed accordingly.

Abstract: Methods and apparatus are provided for an asymmetric encryption scheme with expiring revocable certificates having a predefined validity period. Communications between two devices are secured by obtaining an expiring revocable certificate; and securing said communicating with said expiring revocable certificate using asymmetric encryption. A prior expiring revocable certificate can be revoked when a new expiring revocable certificate is issued to at least one device. The expiring revocable certificate has a predefined validity period (based, for example, on a longest expected connection drop-out duration). A new expiring revocable certificate is requested at least once for each predefined revocation period. The expiring revocable certificate is revoked after the predefined revocation period, for example, only if a connection between the two devices is maintained.

Abstract: A dual and/or multi modulator display system is disclosed comprising at least a first modulator and a second modulator wherein one of modulators has a faster response time that the other modulator. The response of the slower modulator may be characterized according to various image data inputs and this characterized data may then be used by the display system to derive control and/or data signals to the faster modulator. These control/data signals may represent a fitted set of data matched to one or more characteristics of the slower modulator in order to reduce light produced during frame or other transition times of the modulators. One or more characteristics may be employed to reduce such undesirable visual effects.

Abstract: A method of formatting data for identifying colon polyps in a Computed Tomography Colonography (CTC) dataset comprising the steps of: extracting colon surface data, from the CTC dataset, within a sub-volume centered on a candidate polyp (CP) seed point; identifying individual sets of points corresponding to the CP's body and CP's base within the sub-volume; selecting the points corresponding to the body; re-formatting the candidate polyp by projecting the selected points corresponding to the body on to a tangent plane; and generating a series of cutting planes based on the reformatted candidate polyp.

Abstract: Disclosed is a method to determine whether a pipeline has been cut, the method including (a) transmitting an electromagnetic signal through the pipeline; (b) monitoring any reflected signal(s); and (c) interpreting the reflected signal to determine whether the pipeline has been cut.

Abstract: A method is used in managing authentication of virtual clients. An identifier for a virtual client is generated by a virtual server. The identifier is added to a configuration file by the virtual server. The configuration file is associated with the virtual client. The virtual client is authenticated based on the identifier.

Abstract: A method of running an application in a process virtual machine (PVM) on a computing device using a dynamically-linked module (DLM) with an integrity self-check feature is provided. The DLM is written in PVM-native bytecode, and the PVM is configured to execute applications stored as PVM-native bytecode within a single code file associated with that application. The method includes (a) dynamically linking the application to the DLM by loading the PVM-native bytecode of the DLM from a resource file separate from the single code file of the application, (b) performing the integrity self-check feature on the DLM to ensure the integrity of the PVM-native bytecode of the DLM, and (c) in response to the DLM passing the integrity self-check, calling functions of the DLM from within the application. Embodiments directed to analogous computer program products and apparatuses are also provided.